CN215577745U - Flame-retardant modified ternary silicone rubber insulated cable - Google Patents

Abstract

The utility model discloses a flame-retardant modified ternary silicone rubber insulated cable, which adopts the technical scheme that: comprises a cable core, a compression-resistant core and a flame-retardant filling layer, wherein the compression-resistant core is fixedly arranged on the outer side of the cable core, the outer side of the pressure resistant core is fixedly provided with a flame-retardant filling layer, the flame-retardant filling layer is away from the insulating layer at one side of the pressure resistant core, a protective layer is fixedly arranged on one side of the insulating layer, which is far away from the flame-retardant filling layer, and consists of a wrapping layer, a silicon rubber high-temperature-resistant layer, a waterproof layer and a wear-resistant layer, a silicon rubber high-temperature resistant layer is fixedly arranged on the outer side of the wrapping layer, a waterproof layer is fixedly arranged on one side of the silicon rubber high-temperature resistant layer far away from the wrapping layer, the cable is characterized in that a wear-resistant layer is fixedly arranged on one side of the waterproof layer, and a hot melt adhesive layer is fixedly arranged on one side of the waterproof layer, which is far away from the wear-resistant layer.

Description

Flame-retardant modified ternary silicone rubber insulated cable

Technical Field

The utility model relates to the technical field of cables, in particular to a flame-retardant modified ternary silicone rubber insulated cable.

Background

The cable is generally a cable similar to a rope and formed by twisting a plurality of or a plurality of groups of leads (at least two leads in each group), each group of leads are mutually insulated and are usually twisted around a center, a highly-insulated covering layer is wrapped outside the whole cable, and the cable has the characteristics of internal electrification and external insulation, improves the comprehensive flame retardant level of the whole cable for the rubber-sheathed flexible cable for coal mines and has important significance for the safe production of the coal mines and the safe operation of the cable. The comprehensive flame-retardant level of the mining rubber jacketed flexible cable comprises flame-retardant water of organic polymer materials such as insulation, filling, ribbon and outer sheath.

For example, 201410261075.5 a high-strength flexible towline cable is disclosed, but compared with the conventional technology, the cable is added with steel wires only in the conductor, so that a Kevlar reinforcing core is added, the mechanical performance of the cable is not improved, the flexibility of the cable is still poor, the minimum bending radius is large, the comprehensive mechanical performance is poor, and the application range is small; the adopted insulating materials are all conventional materials, the insulating properties of the materials are general, although the Kevlar reinforcing core and the conductor made of the steel wire and the copper wire are twisted together, the conductive performance is obviously sacrificed, the improved radial tensile strength is only the core material part, the integral strength of the cable is not improved, and the application range of the cable is not obviously improved.

The existing cable has weak insulation, short service life, poor flame retardant capability, easy aging, no high temperature resistance, poor water resistance and easy combustion.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the background art, the utility model aims to provide a flame-retardant modified ternary silicone rubber insulated cable so as to solve the problems of weak insulation, poor flame-retardant capability, easy aging, no high temperature resistance, poor water resistance and easy combustion of the cable in the background art.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a fire-retardant type modified ternary silicon rubber insulated cable, includes cable core, anti-pressure core and fire-retardant filling layer, the fixed anti-pressure core that is provided with in the outside of cable core, the fixed fire-retardant filling layer that is provided with in the outside of anti-pressure core, keep away from to fire-retardant filling layer one side insulating layer of anti-pressure core, the insulating layer is kept away from the fixed protective layer that is provided with in one side of fire-retardant filling layer, the protective layer comprises around covering, the resistant high temperature layer of silicon rubber, waterproof layer and wearing layer, the fixed high temperature layer of silicon rubber that is provided with in the outside around the covering, the resistant high temperature layer of silicon rubber is kept away from the fixed waterproof layer that is provided with in one side of covering, the fixed wearing layer that is provided with in one side of waterproof layer, the waterproof layer is kept away from the fixed glue film that is provided with in one side of wearing layer.

Further, the cable core comprises conductor, first parcel layer, shielding layer and copper wire mesh layer, the outside cladding of conductor has first parcel layer, the fixed shielding layer that is provided with in the outside of first parcel layer, the shielding layer is kept away from one side of first parcel layer is fixed and is provided with copper wire mesh layer.

Through the technical scheme, the electric performance of the cable can be well protected from being damaged, the cable cannot be broken down due to the invasion of moisture, and the service life of the cable is longer.

Further, the conductor is formed by winding a plurality of tinned copper wires.

By the technical scheme, the tinned copper wire can prevent oxidation-reduction reaction and generation of verdigris, and heat dissipation can be increased; the conductivity can be improved, and the performance of the lead can be improved.

Further, the wrapping layer, the silicon rubber high-temperature-resistant layer, the waterproof layer and the wear-resistant layer are fixedly bonded through PVC (polyvinyl chloride) hot-melt adhesive films.

By the technical scheme, the hot melt adhesive film as an efficient hot adhesive occupies the half-wall Jiangshan in the composite industry. Its core function and usage are naturally used for bonding and compounding of products or materials, so that the adhesion effect is increased, and the protective layer can be more firmly arranged.

Further, one side of the hot melt adhesive layer, which is far away from the protective layer, is sleeved with a flame-retardant protective sleeve, and heat dissipation holes are uniformly formed in the flame-retardant protective sleeve.

Through above-mentioned technical scheme, the louvre can use the heat that makes the production to discharge through the louvre with the cable.

In conclusion, the utility model mainly has the following beneficial effects:

the utility model discloses a through setting up the protective layer, can improve the flame retardant property of cable, through setting up the waterproof layer, can avoid inside the water source entering cable in the outside, cause the damage to the cable, through the resistant high temperature layer of silicon rubber that sets up, have better bending property and low temperature performance, not fragile and fracture have improved the life of cable, through being provided with the louvre, can improve the heat-sinking capability of cable, prevent that high temperature from influencing the electric conductive property of cable.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

figure 2 is a schematic structural view of the cable core;

fig. 3 is a schematic view of the structure of the protective layer.

Reference numerals: 1. a cable core; 101. a conductor; 102. a first wrapping layer; 103. a shielding layer; 104. a copper wire mesh layer; 2. a compression resistant core; 3. a flame retardant filler layer; 4. an insulating layer; 5. a protective layer; 501. wrapping a covering; 502. a silicone rubber high temperature resistant layer; 503. a waterproof layer; 504. a wear layer; 6. a hot melt adhesive layer; 7. a flame-retardant protective sleeve; 8. and (4) heat dissipation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-3, a flame-retardant modified ternary silicone rubber insulated cable comprises a cable core 1, a compression-resistant core 2 and a flame-retardant filling layer 3, wherein the compression-resistant core 2 is fixedly arranged on the outer side of the cable core 1, the flame-retardant filling layer 3 is fixedly arranged on the outer side of the compression-resistant core 2, the insulating layer 4 is arranged on the side, away from the compression-resistant core 2, of the flame-retardant filling layer 3, the protective layer 5 is fixedly arranged on the side, away from the flame-retardant filling layer 3, of the insulating layer 4, the protective layer 5 is composed of a wrapping layer 501, a silicone rubber high-temperature-resistant layer 502, a waterproof layer 503 and a wear-resistant layer 504, a silicone rubber high-temperature-resistant layer 502 is fixedly arranged on the outer side of the wrapping layer 501, a waterproof layer 503 is fixedly arranged on the side, away from the wrapping layer 501, a wear-resistant layer 504, a hot-melt adhesive layer 6 is fixedly arranged on the side of the waterproof layer 503, and the flame-retardant filling layer 3 is formed by filling polyurethane resin, the insulating layer 4 is made of ethylene propylene diene monomer containing antimony trioxide and decabromodiphenyl oxide, the flame-retardant filling layer 3 is filled with polyurethane resin, and the polyurethane resin has the characteristics of high strength, tear resistance, wear resistance and the like, and is heat-insulating and waterproof.

Referring to fig. 1, the cable core 1 is composed of a conductor 101, a first wrapping layer 102, a shielding layer 103 and a copper wire mesh layer 104, the first wrapping layer 102 wraps the outer side of the conductor 101, the shielding layer 103 is fixedly arranged on the outer side of the first wrapping layer 102, the copper wire mesh layer 104 is fixedly arranged on one side, away from the first wrapping layer 102, of the shielding layer 103, and the conductor 101, the first wrapping layer 102, the shielding layer 103 and the copper wire mesh layer 104 are bonded into a whole through modified epoxy glue.

Referring to fig. 1, a conductor 101 is wound from a plurality of tinned copper wires.

Referring to fig. 1, the wrapping layer 501, the silicone rubber high temperature resistant layer 502, the waterproof layer 503 and the wear-resistant layer 504 are bonded and fixed by using a PVC hot melt adhesive film.

Referring to fig. 1, one side of the hot melt adhesive layer 6, which is far away from the protective layer 5, is sleeved with a flame-retardant protective sleeve 7, and heat dissipation holes 8 are uniformly formed in the flame-retardant protective sleeve 7.

To sum up, install the cable in appointed position, the cable comprises cable core 1, resistance to compression core 2, fire-retardant filling layer 3, insulating layer 4, protective layer 5, hot melt adhesive layer 6 and fire-retardant protective sheath 7 from inside to outside in proper order, louvre 8 of seting up on fire-retardant protective sheath 7, can improve the heat-sinking capability of cable, prevent that high temperature from influencing the electric conductive property of cable, fire-retardant filling layer 3, insulating layer 4 and protective layer 5's cooperation, have fire-retardant fire prevention characteristic, the cable is difficult to burn during the conflagration, and can prevent spreading of flame and the expansion of calamity after burning, be favorable to going on of personnel's evacuation and the work of putting out a fire, and have better bending property and low temperature performance, not fragile and fracture, the life of cable has been improved.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a fire-retardant type modified ternary silicon rubber insulated cable, includes cable core (1), resistance to compression core (2) and fire-retardant filling layer (3), its characterized in that: the outer side of the cable core (1) is fixedly provided with a compression-resistant core (2), the outer side of the compression-resistant core (2) is fixedly provided with a flame-retardant filling layer (3), the flame-retardant filling layer (3) is away from the insulating layer (4) on one side of the pressure-resistant core (2), a protective layer (5) is fixedly arranged on one side of the insulating layer (4) far away from the flame-retardant filling layer (3), the protective layer (5) consists of a wrapping layer (501), a silicon rubber high-temperature resistant layer (502), a waterproof layer (503) and a wear-resistant layer (504), a silicon rubber high-temperature resistant layer (502) is fixedly arranged on the outer side of the wrapping layer (501), a waterproof layer (503) is fixedly arranged on one side of the silicon rubber high-temperature resistant layer (502) far away from the wrapping layer (501), the wear-resistant layer (504) is fixedly arranged on one side of the waterproof layer (503), and the hot melt adhesive layer (6) is fixedly arranged on one side, far away from the wear-resistant layer (504), of the waterproof layer (503).

2. The flame-retardant modified ternary silicone rubber insulated cable according to claim 1, characterized in that: the cable core (1) is composed of a conductor (101), a first wrapping layer (102), a shielding layer (103) and a copper wire mesh layer (104), the first wrapping layer (102) wraps the outer side of the conductor (101), the shielding layer (103) is fixedly arranged on the outer side of the first wrapping layer (102), and the copper wire mesh layer (104) is fixedly arranged on one side, far away from the first wrapping layer (102), of the shielding layer (103).

3. The flame-retardant modified ternary silicone rubber insulated cable according to claim 2, characterized in that: the conductor (101) is formed by winding a plurality of tinned copper wires.

4. The flame-retardant modified ternary silicone rubber insulated cable according to claim 1, characterized in that: the wrapping layer (501), the silicon rubber high-temperature-resistant layer (502), the waterproof layer (503) and the wear-resistant layer (504) are fixedly bonded by PVC (polyvinyl chloride) hot melt adhesive films.

5. The flame-retardant modified ternary silicone rubber insulated cable according to claim 1, characterized in that: one side cover that hot melt adhesive layer (6) kept away from protective layer (5) is equipped with fire-retardant protective sheath (7), louvre (8) have evenly been seted up on fire-retardant protective sheath (7).

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