CN218004453U - Double-shielding loop cable for frequency converter - Google Patents

Abstract

The utility model discloses a double-shielded loop cable for converter, including the sinle silk subassembly, the outer wall of sinle silk subassembly is equipped with the covering layer, and the outer wall of covering layer is equipped with supports the area, and supports the area and constitute by a plurality of supporting layers, and the outer wall that supports the area is equipped with well gum cover, and the enclosure of well gum cover and support area closes the clearance packing and has the filler, the outer wall parcel of well gum cover has the shielding layer, and the outer wall of shielding layer is equipped with outer gum cover, is equipped with the gomphosis shielding layer between outer gum cover and the shielding layer. The utility model discloses utilize the parcel mode of chain shielding layer, inside zero clearance, outside clearance forms and supports the cavity, and the linkage segment utilizes the elastic webbing to connect simultaneously, and moulding that can be better and walk the line set up structural arrangement mode's cable through multilayer shield cover, temperature accommodation is wide, fire prevention fire behavior is excellent, the shielding is effectual, pollution-free to the environment, is suitable for the outdoor environment of converter to use.

Description

Double-shielding loop cable for frequency converter

Technical Field

The utility model relates to the technical field of cables, especially, relate to a double-shielded loop cable for converter.

Background

With the continuous forward development of society, the requirements of users on the performance of cables are higher and higher, and the cable is especially more specific to the field of cables for outdoor frequency converters. Conventional converter cable is low tension cable and is used for indoorly mostly, and especially cable for the converter, especially can't adapt to outdoor environment: the cable has poor shielding resistance, external pressure resistance and fire resistance, and particularly in cold climate areas, the performance of the cable for the conventional frequency converter is seriously influenced in low-temperature weather. Therefore, there is a need for a cable that has a wider temperature application range and better flame resistance, and is more suitable for outdoor environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcomings existing in the prior art and providing a double-shielded loop cable for a frequency converter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a double-shielded loop cable for converter, includes the sinle silk subassembly, the outer wall of sinle silk subassembly is equipped with the covering layer, and the outer wall of covering layer is equipped with supports the area, and supports the area and constitute by a plurality of supporting layers, and the outer wall that supports the area is equipped with well gum cover, and the clearance packing is closed with enclosing of supporting area to well gum cover has the filler, the outer wall parcel of well gum cover has the shielding layer, and the outer wall of shielding layer is equipped with outer gum cover, is equipped with the gomphosis shielding layer between outer gum cover and the shielding layer.

As a further scheme of the utility model, be equipped with the elastic webbing between the fixed length interval of chain shielding area, the elastic webbing is used for improving the moulding effect of heat dissipation and cable.

As a further aspect of the present invention, the elastic band includes a short band and a band ring, the band ring is concentrically disposed, and the band ring is disposed on the outer wall of the middle rubber sleeve, the short band is disposed between the upper and lower band rings, and the orientation of the short band is consistent with the length direction of the cable.

As a further proposal of the utility model, the embedded shielding layer is formed by longitudinally wrapping galvanized steel strips.

As a further proposal of the utility model, the supporting layer is of an arch structure, and the inside of the supporting layer is filled with ceramic silicon rubber materials.

As a further aspect of the present invention, the filler includes, but is not limited to, one or more materials of fluoroplastic, graphene or silicone rubber.

As a further proposal of the utility model, the wire core component comprises a wire covering layer and an oxygen-free copper wire, and the wire covering layer is wrapped on the outer wall of the oxygen-free copper wire which is twisted into a shape.

The utility model has the advantages that:

the loop cable for the double-shielded frequency converter comprises a core component, wherein a core-spun layer, a supporting belt, a shielding layer, an embedded shielding layer, a filled ceramic silicon rubber belt and a rubber sleeve layer are sequentially coated outside the core, the core is formed by twisting a plurality of conducting wires, filling materials are arranged around the conducting wires to form a conductor shielding layer, an insulating shielding layer and a metal shielding layer, and the conductor is formed by tightly pressing oxygen-free copper conducting wires;

meanwhile, the chain type shielding layer is wrapped, no gap exists inside the chain type shielding layer, a supporting cavity is formed in the outer gap, and meanwhile, the connecting sections are connected through the elastic belt, so that better shaping and routing can be realized;

the cable with the structure arrangement mode has the advantages of wide temperature application range, excellent fireproof and flame-retardant performances, good shielding effect and no pollution to the environment, and is suitable for the outdoor environment of the frequency converter.

Drawings

Fig. 1 is a schematic perspective view of a loop cable for a double-shielded frequency converter according to the present invention;

fig. 2 is a schematic cross-sectional structure view of a loop cable for a double-shielded frequency converter according to the present invention;

fig. 3 is a schematic structural diagram of a supporting layer of the loop cable for the double-shielded frequency converter according to the present invention.

In the figure: 100. an outer rubber sleeve; 200. a chain shielding tape; 300. an elastic band; 310. a short band; 400. a filler; 500. a wire core assembly; 510. a wrapping layer; 520. an oxygen-free copper wire; 600. a middle rubber sleeve; 700. a support layer; 800. a core-spun layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, a double-shielded loop cable for converter, including sinle silk subassembly 500, sinle silk subassembly 500's outer wall is equipped with core-spun layer 800, core-spun layer 800's outer wall is equipped with the support area, and support the area and constitute by a plurality of supporting layers 700, the outer wall that supports the area is equipped with well gum cover 600, well gum cover 600 closes the clearance packing with supporting the area and has filler 400, well gum cover 600's outer wall parcel has the shielding layer, the outer wall of shielding layer is equipped with outer gum cover 100, be equipped with the gomphosis shielding layer between outer gum cover 100 and the shielding layer, be equipped with elastic webbing 300 between the fixed length interval of chain shielding belt 200, elastic webbing 300 is used for improving the moulding effect of heat dissipation and cable.

It should be added that the elastic band 300 includes a short band 310 and band rings, the band rings are concentrically arranged, the band rings are sleeved on the outer wall of the middle rubber sleeve 600, the short band 310 is arranged between the upper and lower band rings, the orientation of the short band 310 is consistent with the length direction of the cable, the embedded shielding layer is formed by longitudinally wrapping a galvanized steel band, the supporting layer 700 is of an arch structure, the inside of the supporting layer 700 is filled with a ceramic silicon rubber material, the filler 400 includes but is not limited to one or more materials of fluoroplastics, graphene or silicon rubber, the wire core assembly 500 includes a wrapping layer 510 and an oxygen-free copper wire 520, and the wrapping layer 510 is wrapped on the outer wall of the twisted oxygen-free copper wire 520.

It should be noted that the core assembly 500 includes an oxygen-free copper wire 520 set located in the middle, the oxygen-free copper wire 520 set is formed by twisting and compressing multiple strands of oxygen-free copper wires 520, the cross-sectional area of the oxygen-free copper wire is 50-200mm2, the 3+ n or 4+ n line transmission can be completed, the conductivity of the cable is guaranteed, the flexibility is good, the resistance of the oxygen-free copper wire 520 set is reduced after being compressed, a circle of petal-shaped supporting layer 700 is arranged in the middle, the heat generation amount of the cable during operation is reduced, meanwhile, the heat can be led out through the arched filling layer, softening of a rubber layer is not affected, deformation of the shielding layer under extrusion is caused, the middle rubber sleeve 600, the chain shielding belt 200 and the outer rubber sleeve 100 sequentially cover the oxygen-free copper wire 520 set, the elastic belt 300 is made of a cross-linked shielding material, the elastic belt 300 is composed of a plurality of short belts 310 annularly arranged vertically at equal intervals, the gaps of the shielding belts 310 are small, the requirements of the middle rubber sleeve 600 and the outer rubber sleeve 100 are met, the protection of the conductor by the cross-linked shielding material, the structure, the influence of the electromagnetic radiation of the short belts 310 is avoided, the local radiation of the insulation material, the local insulation of the metal insulation of the semi-conductive material, the metal insulation material and the high-conductive material, the corona insulation material are prevented from being contacted with the corona-conductive material, and the high-resistant cable, and the high-resistance of the high-resistance cable.

Core-spun layer 800 is woven by the anaerobic copper wire and is formed, it is woven cross sectional area and is more than or equal to 50% of anaerobic copper wire 520 group cross sectional area, the arch filling layer is inside evenly closely knit through ceramic silicon rubber material, adopt the double-deck shielded form of different structures, the shielding effect of cable has been improved, the outer wall of chain shielding area 200 still adopts the galvanized steel band to indulge the package and forms, and the chain shielding area 200 cladding is at the outer wall of well gum cover 600, on the one hand, the protection cable uses not receive external force to destroy in the outdoor environment that the converter used, on the other hand strengthens cable interference killing feature together with the shielding layer, ceramic silicon rubber supports inside chain shielding area 200, ceramic silicon rubber supports and filler 400, the high low temperature resistant performance of cable has been guaranteed, make the fire prevention flame retardant property of cable good, improve the security of cable using in outdoor environment.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "first", "second", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a double-shielded loop cable for converter, includes sinle silk subassembly (500), its characterized in that, the outer wall of sinle silk subassembly (500) is equipped with covering layer (800), and the outer wall of covering layer (800) is equipped with supports the area, and supports the area and constitute by a plurality of supporting layers (700), supports the outer wall of area and is equipped with well gum cover (600), and well gum cover (600) and the enclosing of supporting area close the clearance packing and have filler (400), the outer wall parcel of well gum cover (600) has the shielding layer, and the outer wall of shielding layer is equipped with outer gum cover (100), is equipped with the gomphosis shielding layer between outer gum cover (100) and the shielding layer.

2. The loop cable for the double-shielded frequency converter according to claim 1, further comprising chain shielding belts (200), wherein elastic belts (300) are disposed between the chain shielding belts (200) at intervals of a certain length, and the elastic belts (300) are used for improving heat dissipation and cable shaping effects.

3. The loop cable for the double-shielded frequency converter according to claim 2, wherein the elastic band (300) comprises a short band (310) and a band ring, the band ring is concentrically arranged, the band ring is sleeved on the outer wall of the middle rubber sleeve (600), the short band (310) is arranged between the upper and lower band rings, and the short band (310) is oriented in the same direction as the length direction of the cable.

4. The loop cable for the double-shielded frequency converter according to claim 1, wherein the embedded shielding layer is formed by longitudinally wrapping galvanized steel strips.

5. The loop cable for the double-shielded frequency converter according to claim 1, wherein the supporting layer (700) has an arch structure, and the inside of the supporting layer (700) is filled with a ceramic silicone rubber material.

6. The loop cable for the double-shielded frequency converter according to claim 1, wherein the core assembly (500) comprises a covering layer (510) and an oxygen-free copper wire (520), and the covering layer (510) is wrapped on the outer wall of the twisted oxygen-free copper wire (520).

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