CN216647872U

CN216647872U - Household installation flexible wire

Info

Publication number: CN216647872U
Application number: CN202122892710.8U
Authority: CN
Inventors: 邓鹏飞; 张义; 张士焱; 牛涛; 季庭勇
Original assignee: Wuhan No2 Electric Wire & Cable Co ltd
Current assignee: Wuhan No2 Electric Wire & Cable Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-31
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a household installation flexible wire, comprising: the cable comprises a conductor, an insulating layer, a shielding layer, a fire-resistant heat-insulating layer and an outer sheath; the conductor is formed by twisting a plurality of annealed soft copper monofilaments, the insulating layer is coated outside the conductor, the shielding layer is sleeved on the insulating layer, the fire-resistant heat-insulating layer is sleeved on the shielding layer, and the outer sheath is sleeved on the fire-resistant heat-insulating layer; the fireproof heat insulation layer comprises a silica gel layer, a plurality of bulges are arranged on one side of the silica gel layer facing the shielding layer and one side of the silica gel layer facing the outer sheath at intervals respectively, and the bulges and the silica gel layer are integrally formed; and fire-resistant flame-retardant fillers are arranged in a gap between the silica gel layer and the shielding layer and a gap between the silica gel layer and the outer sheath. The utility model can protect the electric wire in the process of installing the electric wire and improve the durability and the safety of the electric wire.

Description

Household installation flexible wire

Technical Field

The utility model relates to the field of household electric wires. More particularly, the present invention relates to a household installation cord.

Background

When modern houses are decorated, the wires are basically concealed, the grooves are formed in the wall body, then the wire pipes are buried, and the wires need to penetrate through the wire pipes when being installed. The electric wire is easy to be damaged in the process of pipe penetration, and especially when the electric wire is blocked in the pipe, the electric wire is easy to be damaged in the pulling and extruding processes, so that a short circuit is caused to cause fire.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to address at least the above problems and to provide at least the advantages described hereinafter.

To achieve these objects and other advantages in accordance with the purpose of the utility model, there is provided a home-mounted cord, comprising: the cable comprises a conductor, an insulating layer, a shielding layer, a fire-resistant heat-insulating layer and an outer sheath; the conductor is formed by twisting a plurality of annealed soft copper monofilaments, the insulating layer is coated outside the conductor, the shielding layer is sleeved on the insulating layer, the fire-resistant heat-insulating layer is sleeved on the shielding layer, and the outer sheath is sleeved on the fire-resistant heat-insulating layer; the fireproof heat insulation layer comprises a silica gel layer, a plurality of bulges are arranged on one side of the silica gel layer facing the shielding layer and one side of the silica gel layer facing the outer sheath at intervals respectively, and the bulges and the silica gel layer are integrally formed; and fire-resistant flame-retardant fillers are arranged in a gap between the silica gel layer and the shielding layer and a gap between the silica gel layer and the outer sheath.

Preferably, the conductor comprises annealed soft copper monofilament strand pitch ratios of 23-25.

Preferably, the insulating layer is a soft polyvinyl chloride insulating layer, and the thickness of the insulating layer is 0.5-1.0 mm.

Preferably, the shielding layer is formed by spirally winding a plurality of strands of soft copper monofilaments on the outer surface of the insulating layer.

Preferably, the bulges of the silica gel layer facing one side of the shielding layer and the bulges of the silica gel layer facing one side of the outer sheath are arranged in a staggered manner.

Preferably, the refractory flame-retardant filler is any one of magnesium hydroxide, aluminum hydroxide and zinc borate.

Preferably, the outer sheath is a polypropylene outer sheath, and the thickness of the outer sheath is 0.1-1.0 mm.

The utility model at least comprises the following beneficial effects:

according to the household installation flexible electric wire provided by the utility model, the conductor is formed by twisting annealed flexible copper monofilaments, the insulating layer, the shielding layer, the fireproof heat insulation layer and the outer sheath are sequentially sleeved outside the conductor, and the inner side and the outer side of the silica gel layer in the fireproof heat insulation layer are provided with the bulges, so that the characteristics of good heat conductivity, good temperature resistance and elasticity of the silica gel are utilized, the support and the buffer can be provided in the extrusion process of the electric wire while the electric wire is fireproof and heat-insulated, the conductor is protected in the pipe penetrating process, and the durability and the safety of the electric wire are improved.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is a schematic diagram of a household installation cord configuration according to an embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, the present invention provides a household installation cord comprising: the cable comprises a conductor 1, an insulating layer 2, a shielding layer 3, a fire-resistant heat-insulating layer and an outer sheath 7; the conductor 1 is formed by stranding a plurality of annealed soft copper monofilaments, the insulating layer 2 covers the outside of the conductor 1, the shielding layer 3 is sleeved on the insulating layer 2, the fire-resistant heat-insulating layer is sleeved on the shielding layer 3, and the outer sheath 7 is sleeved on the fire-resistant heat-insulating layer; the fireproof heat insulation layer comprises a silica gel layer 4, a plurality of bulges 5 are respectively arranged on one side of the silica gel layer 4 facing the shielding layer 3 and one side of the silica gel layer 4 facing the outer sheath 7 at intervals, and the bulges 5 and the silica gel layer 4 are integrally formed; and a fireproof flame-retardant filler 6 is arranged in a gap between the silica gel layer 4 and the shielding layer 3 and a gap between the silica gel layer 4 and the outer sheath 7.

In the technical scheme, the conductor 1 is formed by twisting a plurality of annealed soft copper monofilaments, the twisting pitch ratio is 23-25, and the number and the diameter of the annealed soft copper monofilaments are designed according to the total cross section of the cable; the insulating layer 2 is coated outside the conductor 1, the insulating layer 2 is a soft polyvinyl chloride insulating layer, the flexibility and the extensibility are good, the thickness of the insulating layer is 0.5-1.0mm, the conductor 1 is prevented from being exposed to be oxidized, electric shock caused by accidental touch with the conductor 1 is prevented, and meanwhile, the flexibility of the wire is also ensured; the shielding layer 3 is sleeved on the insulating layer 2, and the shielding layer 3 is formed by spirally winding a plurality of strands of soft copper monofilaments outside the insulating layer, so as to reduce the influence of an external electromagnetic field on a power supply or a communication line and prevent the line from radiating electromagnetic energy outwards; fireproof thermal insulation layer sets up oversheath 7 with between the shielding layer 3, just silica gel layer 4 orientation oversheath 7 with the equal integrated into one piece in side of shielding layer 3 is provided with a plurality of archs 5, protruding 5 even interval distribution is in on two sides of silica gel layer 4, utilize silica gel heat conductivity good, temperature resistant characteristic and have elastic characteristic, in fireproof thermal-insulated, protruding 5 can also receive the extrusion in-process at the electric wire and provide buffering and support, and then protect the conductor at the poling in-process, and then improve the durability and the security of electric wire. On the other hand, the protrusion 5 forms a gap between the part of the silica gel layer 4 without the protrusion and the shielding layer 3 and the outer sheath 7, and then the gap is filled with a fire-resistant flame-retardant filler 6, so as to further improve the fire-resistant flame-retardant performance of the electric wire. The outer sheath 7 is a polypropylene outer sheath, the thickness of the outer sheath is 0.1-1.0 mm, polypropylene has high wear resistance, and the wear rate of the electric wire in the installation process can be reduced.

In another embodiment, the protrusions 5 of the silicone rubber layer 4 facing one side of the shielding layer 3 are staggered with the protrusions 5 of the silicone rubber layer 4 facing one side of the outer sheath 7. By adopting the technical scheme, the support and the buffer can be better provided when the electric wire is extruded and collided in the installation process, and the strength of the electric wire is increased while the flexibility of the electric wire is ensured.

In another embodiment, the fire-resistant and flame-retardant filler 6 is any one of magnesium hydroxide, aluminum hydroxide, and zinc borate. Magnesium hydroxide, aluminum hydroxide and zinc borate are all inorganic flame retardants, release crystal water when heated and decomposed, absorb a large amount of latent heat, can reduce the temperature, and play a role in cooling the generated combustible gas.

While embodiments of the utility model have been described above, it is not intended to be limited to the details shown, described and illustrated herein, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed, and to such extent that such modifications are readily available to those skilled in the art, and it is not intended to be limited to the details shown and described herein without departing from the general concept as defined by the appended claims and their equivalents.

Claims

1. A household installation cord, comprising: the cable comprises a conductor, an insulating layer, a shielding layer, a fire-resistant heat-insulating layer and an outer sheath; the conductor is formed by twisting a plurality of annealed soft copper monofilaments, the insulating layer is coated outside the conductor, the shielding layer is sleeved on the insulating layer, the fire-resistant heat-insulating layer is sleeved on the shielding layer, and the outer sheath is sleeved on the fire-resistant heat-insulating layer; the fireproof heat insulation layer comprises a silica gel layer, a plurality of bulges are arranged on one side of the silica gel layer facing the shielding layer and one side of the silica gel layer facing the outer sheath at intervals respectively, and the bulges and the silica gel layer are integrally formed; and fire-resistant flame-retardant fillers are arranged in a gap between the silica gel layer and the shielding layer and a gap between the silica gel layer and the outer sheath.

2. A domestic installation cord as claimed in claim 1, wherein said conductor comprises annealed soft copper monofilament twist pitch ratio of 23 to 25.

3. A home installation flex as claimed in claim 1 wherein said insulation is a flexible polyvinyl chloride insulation having a thickness of 0.5 to 1.0 mm.

4. A domestic installation cord as claimed in claim 1, wherein said shield is formed from a plurality of soft copper monofilaments helically wound around said insulation.

5. The home installation flex according to claim 1, wherein the protrusions of the silicone rubber layer on the side facing the shielding layer are staggered from the protrusions of the silicone rubber layer on the side facing the outer sheath.

6. The home installation cord of claim 1, wherein the fire resistant, flame retardant filler is any one of magnesium hydroxide, aluminum hydroxide and zinc borate.

7. The home installation cord of claim 1, wherein said outer jacket is a polypropylene outer jacket, said outer jacket having a thickness of 0.1 mm to 1.0 mm.