CN212847823U

CN212847823U - Halogen-free low-smoke flame-retardant frequency converter cable

Info

Publication number: CN212847823U
Application number: CN202021237678.9U
Authority: CN
Inventors: 王冰; 刘国英; 许茂新
Original assignee: Shenyang Shenlan Sihuan Cable Manufacturing Co ltd
Current assignee: Shenyang Shenlan Sihuan Cable Manufacturing Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-30
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a there is not steamed low fire-retardant converter cable of cigarette, including three cable thread, three cable zero line and there is not steamed low fire-retardant insulating layer of cigarette, there is not steamed low fire-retardant insulating layer's inside center of cigarette all is provided with three cable thread, there is not steamed low fire-retardant insulating layer's inside three the outside clearance department of cable thread all is provided with the cable zero line, the outside of three cable thread all is fixed the cover and has been cup jointed thread insulating layer, three the outside of thread insulating layer is all fixed the thread copper tape layer of having cup jointed, and is three the outside of cable zero line is all fixed the zero line insulating layer of having cup. The utility model discloses in, be provided with the fire-retardant insulating layer of steamed low cigarette and steamed flame retardant rubber layer, cooperation composite flame retardant fiber layer has eliminated traditional flame retardant cable and in case under the conflagration condition of taking place, contains toxic gas in the gas of its burning on reaching the basis that improves flame retardant property, produces the problem of secondary damage to personnel and equipment, has strengthened the practicality of device.

Description

Halogen-free low-smoke flame-retardant frequency converter cable

Technical Field

The utility model relates to a power cable technical field especially relates to there is not steamed low fire-retardant converter cable of cigarette.

Background

With the rapid development of the frequency conversion technology, the special cable for the frequency converter matched with the frequency conversion technology is more and more widely applied and plays an important role in the development of the frequency conversion technology as the cable for the frequency converter.

However, due to the particularity of the frequency converter cable, many frequency converter manufacturers or users require that all frequency converter cables have halogen-free, flame retardant, low smoke, anti-interference and other performances, and all performance indexes are specified.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a halogen-free low-smoke flame-retardant frequency converter cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the halogen-free low-smoke flame-retardant frequency converter cable comprises three cable main lines, three cable zero lines and a halogen-free low-smoke flame-retardant insulating layer, wherein the center of the interior of the halogen-free low-smoke flame-retardant insulating layer is provided with three cable main lines, the cable zero lines are arranged in the halogen-free low-smoke flame-retardant insulating layer at the gaps of the outer sides of the three cable main lines, the main line insulating layers are fixedly sleeved on the outer sides of the three cable main lines, main line copper tape layers are fixedly sleeved on the outer sides of the three main line insulating layers, zero line insulating layers are fixedly sleeved on the outer sides of the three cable zero lines, zero line copper tape layers are fixedly sleeved on the outer sides of the three zero line insulating layers, cable reinforcing stranded wires are arranged in the gaps of the inner sides of the three cable main lines in the halogen-free low-smoke, the outer side of the glass fiber layer is fixedly sleeved with a halogen-free flame-retardant rubber layer, a plurality of reinforcing steel wire wires are arranged inside the halogen-free flame-retardant rubber layer, the outer side of the halogen-free flame-retardant rubber layer is fixedly sleeved with a composite flame-retardant fiber layer, and the outer side of the composite flame-retardant fiber layer is fixedly sleeved with a wear-resistant rubber layer.

As a further description of the above technical solution:

the three cable main lines and the three zero lines of the cable are centrosymmetric by taking the inner center of the halogen-free low-smoke flame-retardant insulating layer as a reference center.

As a further description of the above technical solution:

the plurality of reinforcing steel wire lines are distributed in a mutually crossed grid shape in the halogen-free flame-retardant rubber layer.

As a further description of the above technical solution:

the halogen-free low-smoke flame-retardant insulating layer is mainly made of a high polymer material added with a composite flame retardant consisting of red phosphorus and aluminum hydroxide.

As a further description of the above technical solution:

the composite flame-retardant fiber layer is formed by mixing and spinning 20% of modacrylic and 80% of asbestos fiber.

As a further description of the above technical solution:

the three cable reinforcing stranded wires are formed by hinging a plurality of strands of alloy steel wires with the diameter of 0.1 mm.

The utility model discloses following beneficial effect has:

1. the utility model discloses be provided with there is not steamed low fire-retardant insulating layer of cigarette and not steamed flame retardant rubber layer, compound flame retardant fiber layer of cooperation has eliminated traditional flame retardant cable in case under the conflagration condition of taking place, contains toxic gas in the gas of its burning, produces the problem of secondary damage to personnel and equipment, has strengthened the practicality of cable on reaching the basis that improves flame retardant property.

2. The utility model discloses be provided with the glass fiber layer, can further promote the fire resistance, and still can guarantee under the high temperature condition that the cable has certain intensity, strengthened the practicality of cable.

3. The utility model discloses be provided with the enhancement steel wire line, can improve the tensile strength of cable, cooperate the network structure of its setting, can with thread copper tape layer and zero line copper strips range upon range of add and form the total shielding effect of additional, improve the effect of electromagnetic shield, strengthened the practicality of cable.

Drawings

Fig. 1 is a cross-sectional view of a halogen-free low-smoke flame-retardant frequency converter cable provided by the utility model;

fig. 2 is a schematic diagram of the internal structure of the halogen-free flame retardant rubber layer of the halogen-free low-smoke flame retardant frequency converter cable provided by the utility model;

fig. 3 is the glass fiber layer structure schematic diagram of the halogen-free low-smoke flame-retardant frequency converter cable provided by the utility model.

Illustration of the drawings:

1. a cable main line; 2. a neutral line of the cable; 3. a main line insulating layer; 4. a main copper strip layer; 5. a zero line insulating layer; 6. a zero line copper tape layer; 7. a cable reinforcing strand; 8. a halogen-free low-smoke flame-retardant insulating layer; 9. a glass fiber layer; 10. a halogen-free flame retardant rubber layer; 11. reinforcing the steel wire; 12. a composite flame-retardant fiber layer; 13. A wear-resistant rubber 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the halogen-free low-smoke flame-retardant frequency converter cable comprises three cable main lines 1, three cable zero lines 2 and a halogen-free low-smoke flame-retardant insulating layer 8, wherein three cable main lines 1 are arranged in the center of the interior of the halogen-free low-smoke flame-retardant insulating layer 8, cable zero lines 2 are arranged in the interior of the halogen-free low-smoke flame-retardant insulating layer 8 at the gaps of the outer sides of the three cable main lines 1, main line insulating layers 3 are fixedly sleeved on the outer sides of the three cable main lines 1, main line copper tape layers 4 are fixedly sleeved on the outer sides of the three cable zero lines 2, zero line insulating layers 5 are fixedly sleeved on the outer sides of the three zero line insulating layers 5, zero line copper tape layers 6 are fixedly sleeved on the outer sides of the three cable main lines 1, cable reinforcing stranded wires 7 are arranged in the interior of the halogen-free low-smoke flame-retardant insulating layer, the utility model discloses a halogen-free low-smoke flame-retardant insulating layer 8 and the cooperation of halogen-free flame-retardant rubber layer 10 and composite flame-retardant fiber layer 12 can be on the basis of reaching the improvement of flame-retardant performance, the problem that the gas of burning of traditional flame-retardant cable contains toxic gas and produces secondary damage to personnel and equipment in case of fire is generated is eliminated on the basis of reaching the improvement of flame-retardant performance by the cooperation of the halogen-free low-smoke flame-retardant insulating layer 8 and the halogen-free flame-retardant rubber layer 10 with the composite flame-retardant fiber layer 12, the practicability of the cable is enhanced.

Three cable thread 1 and three cable zero line 2 all use the inside center of steamed low smoke flame retardant insulation layer 8 as referring central symmetry, a plurality of enhancement steel wire lines 11 are the latticed distribution of intercrossing inside no halogen flame retardant rubber layer 10, can improve the tensile strength of cable, cooperate the network structure that it set up, can form additional total shielding effect with thread copper tape layer 4 and zero line copper tape layer 6 stack, the effect of electromagnetic shield is improved, the practicality of cable has been strengthened, steamed low smoke flame retardant insulation layer 8 is mainly made by the macromolecular material that adds the compound fire retardant that has red phosphorus and aluminium hydroxide to constitute, compound fire retardant fiber layer 12 mainly is 20% chlorine nitrile polyester and 80% asbestos fibre mixed spinning formation, three cable is strengthened stranded conductor 7 and is articulated the forming of the alloy steel wire that stranded diameter is 0.1 millimeter.

The working principle is as follows: the utility model discloses during the use, accessible thread copper tape layer 4 and zero line copper tape layer 6 form additional total shielding effect with a plurality of cooperation superposes of strengthening steel wire line 11, improve the effect of electromagnetic shield, and through the cooperation of no halogen low smoke flame retardant insulation layer 8 and no halogen flame retardant rubber layer 10 and compound flame retardant fiber layer 12, can reach on the basis that improves flame retardant property, eliminated traditional flame retardant cable in case under the conflagration condition takes place, contain toxic gas in the gas of its burning, produce the problem of secondary damage to personnel and equipment, the practicality of cable has been strengthened.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. There is not steamed low fire-retardant converter cable of cigarette, including three cable thread (1), three cable zero line (2) and there is not steamed low fire-retardant insulating layer of cigarette (8), its characterized in that: the cable is characterized in that the center of the interior of each halogen-free low-smoke flame-retardant insulating layer (8) is provided with three cable main lines (1), cable zero lines (2) are arranged in the interior of each halogen-free low-smoke flame-retardant insulating layer (8) at the gaps of the outer sides of the three cable main lines (1), main line insulating layers (3) are fixedly sleeved on the outer sides of the three cable main lines (1), main line copper tape layers (4) are fixedly sleeved on the outer sides of the three main line insulating layers (3), zero line insulating layers (5) are fixedly sleeved on the outer sides of the three zero line insulating layers (5), zero line copper tape layers (6) are fixedly sleeved on the outer sides of the three cable main lines (1), cable reinforcing strands (7) are arranged in the interior of each halogen-free low-smoke flame-retardant insulating layer (8), and glass fiber layers (9) are fixedly sleeved on the outer sides of each halogen-free low-smoke flame-, the outer side of the glass fiber layer (9) is fixedly sleeved with a halogen-free flame-retardant rubber layer (10), a plurality of reinforcing steel wire wires (11) are arranged inside the halogen-free flame-retardant rubber layer (10), the outer side of the halogen-free flame-retardant rubber layer (10) is fixedly sleeved with a composite flame-retardant fiber layer (12), and the outer side of the composite flame-retardant fiber layer (12) is fixedly sleeved with a wear-resistant rubber layer (13).

2. The halogen-free low-smoke flame-retardant frequency converter cable according to claim 1, characterized in that: the three cable main lines (1) and the three cable zero lines (2) are symmetrical by taking the inner center of the halogen-free low-smoke flame-retardant insulating layer (8) as a reference center.

3. The halogen-free low-smoke flame-retardant frequency converter cable according to claim 1, characterized in that: the plurality of reinforcing steel wire wires (11) are distributed in a mutually crossed grid shape in the halogen-free flame-retardant rubber layer (10).

4. The halogen-free low-smoke flame-retardant frequency converter cable according to claim 1, characterized in that: the halogen-free low-smoke flame-retardant insulating layer (8) is mainly made of a high polymer material added with a composite flame retardant consisting of red phosphorus and aluminum hydroxide.

5. The halogen-free low-smoke flame-retardant frequency converter cable according to claim 1, characterized in that: the composite flame-retardant fiber layer (12) is formed by mixing and spinning 20% of modacrylic and 80% of asbestos fiber.

6. The halogen-free low-smoke flame-retardant frequency converter cable according to claim 1, characterized in that: the three cable reinforcing strands (7) are formed by hinging a plurality of strands of alloy steel wires with the diameter of 0.1 mm.