Medium-voltage cross-linked insulated armored cable for tightly pressing conductor

Abstract

The utility model relates to the technical field of cables, in particular to a medium-voltage cross-linked insulated armored cable for tightly pressing conductors, which comprises an outer sheath, a metal armor is attached and connected to the inner side of the outer sheath, an inner protection layer is connected to the inner wall of the metal armor, a wrapping tape is connected to the inner wall of the inner protection layer, a filling layer is arranged in the wrapping tape, and an outer sheath is arranged in the outer sheath. The filling layer is internally provided with three conductive mechanisms which are annularly distributed, and the outer sides of the conductive mechanisms are wrapped and connected with an insulating layer; and meanwhile, the interior of the cable is reinforced and protected safely, so that the cable is prevented from being damaged during transportation and installation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cable, specifically a kind of middle voltage crosslinking insulation armoured cable of tight conductor, belong to cable technical field. BACKGROUND

[0002] Cable is a kind of electric energy or signal transmission device, usually by several or several groups of wires, with the development of manufacturing industry, the types of cable are also various, and the cable used in different fields is also different, in the process of electric power transmission, cable plays an important role.

[0003] However, the traditional tight cable lacks good insulation inside, easy to cause leakage phenomenon, while the cable outside lacks reinforcement protection measures, cable is easy to be damaged in transportation and installation process. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of middle voltage crosslinking insulation armoured cable of tight conductor, to solve the above-mentioned problems, can have good insulation, simultaneously make cable internal reinforcement and safety protection, so that cable is not damaged when transporting and installing.

[0005] The utility model discloses the above-mentioned purposes are realized by the following technical scheme, a kind of middle voltage crosslinking insulation armoured cable of tight conductor, including outer sheath, the outer sheath inner side is connected with metal armoring with sticking, the metal armoring inner wall is connected with inner protective layer, the inner protective layer inner wall is connected with tape, the tape inside is equipped with filler layer, the filler layer inside is equipped with three annular distribution's electric conductive mechanism, the electric conductive mechanism outer side is connected with insulating layer with wrapping.

[0006] Preferably, the electric conductive mechanism includes a center conductor, the center conductor is provided with a plurality of third fan ring conductors outside the ring, a plurality of second fan ring conductors are provided outside the ring, and a plurality of first fan ring conductors are provided outside the ring.

[0007] Preferably, a plurality of first fan ring conductors are wrapped outside the ring with a conductor shield, and the inner side of the conductor shield is tightly attached to the outer side of the plurality of first fan ring conductors.

[0008] Preferably, the conductor shield is wrapped outside the ring with an insulating layer, the insulating layer is wrapped outside the ring with an insulating shield, and the insulating shield is wrapped outside the ring with a copper tape shield.

[0009] Preferably, the three copper tape shields are provided with a mark strip on the outer side wall, and the thickness of the insulating layer is equal to the radius of the conductor shield.

[0010] Preferably, the center conductor is a cylindrical structure, and the first sector ring conductor, the second sector ring conductor and the third sector ring conductor are all sector ring structures in cross section.

[0011] Preferably, the outer periphery of the third sector ring conductor is tightly fitted with the inner side of the second sector ring conductor, and the outer periphery of the second sector ring conductor is tightly fitted with the inner side of the first sector ring conductor.

[0012] Preferably, the central angle of the third sector ring conductor ranges from 60° to 120°, and the length ratio of the short arc to the long arc ranges from 1:2.4 to 1:3.

[0013] Preferably, the central angle of the second sector ring conductor ranges from 30° to 36°, and the length ratio of the short arc to the long arc ranges from 1:1.4 to 1.2.

[0014] Preferably, the central angle of the first sector ring conductor ranges from 20° to 24°, and the length ratio of the short arc to the long arc ranges from 1:1.2 to 1:1.6.

[0015] The utility model discloses the installation of conductive mechanism is favorable to the power transmission work to the electric power, and through the installation of multiple annular distribution conductive mechanisms in the filling layer, makes the conductive effect better, and the power transmission load increases, and through the wrapping of insulating layer, makes the insulation effect better, through the wrapping of the packing tape, the inner protective layer, the metal armor and the outer sheath in the filling layer outside in proper order, realizes the reinforcement and safety protection to the inside multiple conductive mechanisms, makes the cable not be damaged when transporting and installing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the connecting structure schematic diagram of the metal armor and the outer sheath of the utility model;

[0018] Figure 3 It is the connecting structure schematic diagram of the insulating layer and the conductor shield of the utility model;

[0019] Figure 4 It is the structure schematic diagram of the third sector ring conductor of the utility model;

[0020] Figure 5 It is the structure schematic diagram of the second sector ring conductor of the utility model;

[0021] Figure 6 It is the structure schematic diagram of the first sector ring conductor of the utility model.

[0022] In the figure: 1, outer sheath; 2, metal armor; 3, inner protective layer; 4, tape; 5, filling layer; 6, conductive mechanism; 61, center conductor; 62, first sector ring conductor; 63, second sector ring conductor; 64, third sector ring conductor; 65, conductor shield; 66, marker strip; 7, insulating layer; 8, copper tape shield; 9, insulating shield. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-6 As shown in the figure, a kind of medium voltage crosslinking insulated armored cable of compact conductor, including outer sheath 1, the inner side of outer sheath 1 is connected with metal armor 2, the inner wall of metal armor 2 is connected with inner protective layer 3, the inner wall of inner protective layer 3 is connected with tape 4, tape 4 is equipped with filling layer 5 inside, filling layer 5 is equipped with three ring-shaped distribution conductive mechanism 6 inside, the outer side of conductive mechanism 6 is wrapped and connected with insulating layer 7.

[0025] As a kind of technical optimization scheme of the utility model, the conductive mechanism 6 includes center conductor 61, the outer side of center conductor 61 is equipped with multiple third sector ring conductors 64 of ring-shaped distribution, the outer side of multiple third sector ring conductors 64 is equipped with multiple second sector ring conductors 63 of ring-shaped distribution, the outer side of multiple second sector ring conductors 63 is equipped with multiple first sector ring conductors 62 of ring-shaped distribution, by the mutual wrapping of the center center conductor 61, the first sector ring conductor 62, the second sector ring conductor 63, the third sector ring conductor 64, so that cable is more compact, gap reduces, and power transmission load is greater.

[0026] As a kind of technical optimization scheme of the utility model, the outer side of multiple first sector ring conductors 62 of ring-shaped distribution is wrapped with conductor shield 65, the inner side of conductor shield 65 is tightly attached to the outer side of multiple first sector ring conductors 62 of ring-shaped distribution, by the tight wrapping of the conductor shield 65, the outer side of the first sector ring conductor 62 is wrapped tightly, and good insulation and protection effect is achieved.

[0027] As a technical optimization scheme of the utility model, the conductor shield 65 is wrapped outside with an insulating layer 7, the insulating layer 7 is wrapped outside with an insulating shield 9, and the insulating shield 9 is wrapped outside with a copper band shield 8, so that the first fan ring conductor 62 is better insulated outside, and good shielding and anti-interference effects are achieved.

[0028] As a technical optimization scheme of the utility model, the three copper band shields 8 are respectively provided with mark strips 66 on the outer walls, and the thickness of the insulating layer 7 is equal to the radius of the conductor shield 65, so that the phases of the conductors are easily identified by installing the mark strips 66 of different colors, and the installation and maintenance are facilitated, and the insulating effect is better by increasing the thickness of the insulating layer 7.

[0029] As a technical optimization scheme of the utility model, the center conductor 61 is in a cylindrical structure, the first fan ring conductor 62, the second fan ring conductor 63 and the third fan ring conductor 64 are all in a fan-shaped structure in cross section, the fan ring structure can make the contact surface between the conductors more compact, the compression coefficient of the conductors is higher, and the distribution of the conductors is more uniform.

[0030] As a technical optimization scheme of the utility model, the outer periphery of the third fan ring conductor 64 is tightly attached to the inner side of the second fan ring conductor 63, and the outer periphery of the second fan ring conductor 63 is tightly attached to the inner side of the first fan ring conductor 62, so that the gap inside the cable is small, the conductors are distributed regularly inside the cable, the cable structure is more compact, the laying space is saved, and the current-carrying capacity of the cable is improved.

[0031] As a technical optimization scheme of the utility model, the central angle range of the third fan ring conductor 64 is 60°-120°, and the length ratio range of the short arc to the long arc is 1:2.4-1:3, so that the number of the third fan ring conductors 64 is reduced, and the third fan ring conductors 64 tightly wrap the center conductor 61.

[0032] As a technical optimization scheme of the utility model, the central angle range of the second fan ring conductor 63 is 30°-36°, and the length ratio range of the short arc to the long arc is 1:1.4-1.2, so that the central angle range and the length ratio range of the short arc to the long arc of the second fan ring conductor 63 are small, the number of the conductors is increased, and the second fan ring conductors 63 are tightly attached in sequence.

[0033] As a technical optimization scheme of the utility model, the central angle range of the first fan ring conductor 62 is 20°-24°, and the length ratio range of the short arc and the long arc is 1:1.2-1:1.6, the central angle range of the first fan ring conductor 62 and the length ratio range of the short arc and the long arc are small, the number of conductors is increased, and the plurality of first fan ring conductors 62 can be sequentially and closely fitted.

[0034] The utility model discloses in using, first with different model conductor is through the different shape and passes the line hole and is shaped, and through the equipment, the third fan ring conductor 64, second fan ring conductor 63 and first fan ring conductor 62 are sequentially stranded in the outer surface of central conductor 61 and are wrapped, to form the compression conductor, and the insulating layer 7, insulating shield 9 and copper band shield 8 are wrapped respectively outside three conductor shields 65, to make the insulating effect better, shield and anti -interference function simultaneously, the mark strip 66 is connected respectively outside three copper band shields 8, and the phase recognition of the good guide is facilitated, and is favorable to subsequent installation and maintenance, then the first fan ring conductor 62, second fan ring conductor 63 and third fan ring conductor 64 of three groups with central conductor 61 as the center are wrapped and are annularly distributed in the filling layer 5, then the filling layer 5 outside is sequentially wrapped with the wrapping tape 4, the inner protective layer 3, the metal armor 2 and the outer sheath 1, realize the reinforcement and safety protection of the plurality of conductive mechanisms 6 in the interior, make the cable not be damaged when transporting and installing.

[0035] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A medium-voltage cross-linked insulated armored cable with a compressed conductor, comprising an outer sheath (1), characterized in that: The outer sheath (1) is fitted with a metal armor (2) on its inner side. The inner wall of the metal armor (2) is connected to an inner protective layer (3). The inner wall of the inner protective layer (3) is connected to a wrapping tape (4). The wrapping tape (4) has a filling layer (5) inside. The filling layer (5) has three conductive mechanisms (6) arranged in a ring inside. The conductive mechanisms (6) are wrapped with an insulating layer (7) on their outer side.

2. The medium-voltage cross-linked insulated armored cable with compressed conductor according to claim 1, characterized in that: The conductive mechanism (6) includes a central conductor (61), and a plurality of third sector ring conductors (64) arranged in a ring are provided outside the central conductor (61). A plurality of second sector ring conductors (63) arranged in a ring are provided outside the plurality of third sector ring conductors (64), and a plurality of first sector ring conductors (62) arranged in a ring are provided outside the plurality of second sector ring conductors (63).

3. A medium-voltage cross-linked insulated armored cable with a compacted conductor according to claim 2, characterized in that: Multiple first sector conductors (62) arranged in a ring are wrapped with conductor shields (65) on the outside, and the inside of the conductor shields (65) is closely attached to the outside of the multiple first sector conductors (62) arranged in a ring.

4. A medium-voltage cross-linked insulated armored cable with a compacted conductor according to claim 3, characterized in that: An insulating layer (7) is wrapped around the outside of the conductor shield (65), an insulating shield (9) is wrapped around the outside of the insulating layer (7), and a copper strip shield (8) is wrapped around the outside of the insulating shield (9).

5. A medium-voltage cross-linked insulated armored cable with a compacted conductor according to claim 4, characterized in that: The outer walls of the three copper strip shields (8) are respectively provided with marking strips (66), and the thickness of the insulating layer (7) is equal to the radius of the conductor shield (65).

6. A medium-voltage cross-linked insulated armored cable with a compacted conductor according to claim 2, characterized in that: The central conductor (61) has a cylindrical structure, and the cross-sections of the first sector ring conductor (62), the second sector ring conductor (63), and the third sector ring conductor (64) are all sector-shaped.

7. A medium-voltage cross-linked insulated armored cable with a compacted conductor according to claim 2, characterized in that: The outer periphery of the third sector conductor (64) is in close contact with the inner side of the second sector conductor (63), and the outer periphery of the second sector conductor (63) is in close contact with the inner side of the first sector conductor (62).

8. A medium-voltage cross-linked insulated armored cable with a compacted conductor according to claim 2, characterized in that: The central angle of the third sector conductor (64) ranges from 60° to 120°, and the length ratio of the short arc to the long arc ranges from 1:2.4 to 1:

3.

9. A medium-voltage cross-linked insulated armored cable with a compacted conductor according to claim 2, characterized in that: The central angle of the second sector conductor (63) ranges from 30° to 36°, and the length ratio of the short arc to the long arc ranges from 1:1.4 to 1.

2.

10. A medium-voltage cross-linked insulated armored cable with a compacted conductor according to claim 2, characterized in that: The central angle of the first sector conductor (62) ranges from 20° to 24°, and the length ratio of the short arc to the long arc ranges from 1:1.2 to 1:1.6.

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