CN220400261U

CN220400261U - Mineral cable

Info

Publication number: CN220400261U
Application number: CN202321757818.9U
Authority: CN
Inventors: 朱敬轩; 胡乐云; 罗锡群
Original assignee: Wenzhou Weiying New Material Cable Co ltd
Current assignee: Wenzhou Weiying New Material Cable Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-01-26
Anticipated expiration: 2033-07-06

Abstract

The utility model relates to a mineral cable comprising: the cable comprises a conductive wire core, a metal layer and an outer sheath; the conductive wire core is used for conducting current; the outside of the conductive wire core is sequentially coated with a first insulating layer and a second insulating layer; the first insulating layer and the second insulating layer are made of mineral materials; the metal layer is coated on the outer wall of the second insulating layer and is used for sealing the conductive wire core; the outer sheath is coated on the outer wall of the metal layer and is used for avoiding abrasion; through the first insulating layer and the second insulating layer cladding conductive wire core in proper order of mineral material, can protect conductive wire core can not wearing and tearing when guaranteeing the insulation, the rethread cladding seals conductive wire core in the metal level of second insulating layer. Further enhancing the abrasion resistance of the conductive wire core. Through first insulating layer and second insulating layer, metal level and oversheath mutually support, have carried out three-layer protection setting to the cable, have improved the stand wear and tear ability of cable, can avoid taking place the incident because of cable wearing and tearing.

Description

Mineral cable

Technical Field

The utility model relates to the technical field of cables, in particular to a mineral cable.

Background

Along with the development of society, the electricity consumption of various electric equipment is increased, so that the requirements on the current carrying capacity of the cable are also higher and higher, and the section of the conductive wire core of the cable is increased continuously. However, in general, because the length of the cable is long, when a worker lays the cable, the cable is extremely easily worn during the laying process, thereby causing a safety accident.

The existing mode for preventing the cable from being worn is to add an outer sheath on the outer wall of the cable, so that insulation protection is provided for the inside of the cable through the outer sheath to avoid electric leakage. However, since the material of the outer sheath of the cable is generally composed of organic polymers of plastics and rubber, the wear-resistant protection performance of the outer sheath of the cable is gradually reduced as the temperature of the cable is gradually increased over a long period of time, so that the outer sheath of the cable is worn, and safety accidents are caused.

Therefore, the existing cable is poor in abrasion resistance.

Disclosure of Invention

The utility model provides a mineral cable for solving the problem of poor wear resistance of the existing cable.

The mineral cable provided by the utility model for realizing the purpose comprises the following components: the conductive wire core is used for conducting current; the outside of the conductive wire core is sequentially coated with a first insulating layer and a second insulating layer; the first insulating layer and the second insulating layer are made of mineral materials; the metal layer is coated on the outer wall of the second insulating layer and is used for sealing the conductive wire core; and the outer sheath is coated on the outer wall of the metal layer and is used for avoiding abrasion.

In some embodiments, a fireproof isolation layer is further arranged between the inner wall of the outer sheath and the outer wall of the metal layer, and the fireproof isolation layer is used for flame retardance.

In some embodiments, the fire barrier layer comprises: the fireproof layer is arranged between the inner wall of the outer sheath and the outer wall of the metal layer; the isolating layer is arranged between the inner wall of the fireproof layer and the outer wall of the metal layer and is used for preventing the metal layer from being oxidized; the fireproof layer is made of mineral materials.

In some embodiments, the plurality of conductive wire cores are arranged in a surrounding manner; the outer wall of each conductive wire core is coated with a first insulating layer; the second insulating layer is coated outside the plurality of first insulating layers.

In some embodiments, the mineral cable further comprises a tape; the band is arranged between the outer wall of the fireproof layer and the inner wall of the outer sheath, and the band is used for binding the plurality of conductive wire cores.

In some embodiments, the mineral cable further comprises a filler layer; the filling layer is arranged between the first insulating layers and between the second insulating layer and each first insulating layer.

In some embodiments, the outer sheath is a halogen-free polyolefin sheath.

In some embodiments, the outer sheath has a thickness of 5 millimeters or more.

In some embodiments, the outer wall of the outer jacket is coated with an anti-wear coating for wear protection.

In some embodiments, the material of the filling layer is a high temperature resistant material such as asbestos.

The utility model has the beneficial effects that:

according to the mineral cable, the first insulating layer and the second insulating layer which are made of mineral materials are sequentially coated on the conductive wire core, so that the conductive wire core is protected from abrasion while the insulating performance is ensured, and the conductive wire core is sealed through the metal layer coated on the second insulating layer. Thereby further enhancing the abrasion resistance of the conductive core. Through first insulating layer and second insulating layer, metal level and set up in the outer sheath mutually supporting of outside, have carried out the three-layer protection setting on the cable to improve the stand wear and tear ability of cable, avoid taking place the incident because of cable wearing and tearing.

Drawings

Fig. 1 is a schematic diagram of some embodiments of a mineral cable according to the present utility model.

In the drawing, 100, a conductive wire core; 200. a first insulating layer; 300. a second insulating layer; 400. a metal layer; 500. an outer sheath; 600. a fire barrier layer; 610. a fire-blocking layer; 620. an isolation layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "top," "bottom," "inner," "outer," "axis," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model or simplifying the description, and do not indicate or imply that the devices or elements 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 utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1, a mineral cable comprising: a conductive core 100, a metal layer 400 and an outer sheath 500. The conductive core 100 is used to conduct current. The outside of the conductive core 100 is sequentially coated with a first insulating layer 200 and a second insulating layer 300. The materials of the first insulating layer 200 and the second insulating layer 300 are both mineral materials. The metal layer 400 is wrapped with the outer wall of the second insulating layer 300, and the metal layer 400 is used for sealing the conductive wire core 100. The outer sheath 500 is disposed around the outer wall of the metal layer 400, and the outer sheath 500 is used for avoiding abrasion.

Specifically, the conductive wire core 100 is a copper conductor and is formed by twisting copper wires, so that the conductive efficiency of the cable can be improved, and the conductive performance is ensured. The first insulating layer 200 is coated on the outer wall of the conductive wire core 100, so that the inner wall of the first insulating layer 200 is attached to the outer wall of the conductive wire core 100. The second insulating layer 300 is disposed outside the first insulating layer 200. The materials of the first insulating layer 200 and the second insulating layer 300 are all mineral materials, so that a good insulating effect can be achieved, meanwhile, the properties of minerals are utilized, so that the first insulating layer 200 and the second insulating layer 300 also have higher hardness, the strength of the inside of the cable is further enhanced, the wear resistance is improved, and the first insulating layer 200 and the second insulating layer 300 also have better flame retardant property due to the mineral properties, so that the use safety of the cable can be greatly improved. The metal layer 400 is coated on the outer wall of the second insulating layer 300, so that the inner wall of the metal layer 400 and the outer wall of the second insulating layer 300 are mutually attached, the metal layer 400 is made of aluminum alloy, the metal layer 400 is relatively light and soft in quality, meanwhile, good corrosion resistance and good heating performance are also provided, the metal layer 400 can perform sealing protection on the conductive wire core 100, and meanwhile, heat generated during the working of a cable can be dissipated, so that the cable is prevented from being broken due to overheating, and the whole weight of the cable is not excessively heavy, so that the cable is convenient for workers to lay. The outer sheath 500 cladding sets up on the outer wall with the metal level 400, and the inner wall of outer sheath 500 laminates with the outer wall of metal level 400 each other, and wherein, outer sheath 500 is halogen-free polyolefin sheath to make outer sheath 500 not only play fire-retardant effect to the cable, also can protect the outer wall of cable can not receive wearing and tearing, thereby avoid the probability of cable trouble. Through mutually supporting between first insulating layer 200 and second insulating layer 300, metal layer 400 and the oversheath 500, three-layer protection setting has been carried out to the cable, has reduced the inside probability that receives wearing and tearing of cable to avoided the cable to lead to the incident to take place because of receiving wearing and tearing.

The thickness of the outer sheath 500 is 5 mm or more, that is, the thickness of the thinnest portion of the outer sheath 500 is not less than 5 mm. The cable is ensured to have higher wear resistance, so that various safety accidents caused by the damage of the outer sheath 500 of the cable caused by the punctiform external force and the planar external force can be avoided. And, evenly be provided with insulating filler particles in the oversheath 500 to can make oversheath 500 still have better fire-retardant, insulating effect, effectively anti external interference when guaranteeing wear resistance. Meanwhile, the outer wall of the outer sheath 500 is further coated with an anti-wear coating, and the anti-wear coating is uniformly coated on the outer wall of the outer sheath 500. The abrasion-proof ability of the outer wall of the outer sheath 500 can be further enhanced, so that abrasion damage generated when the cable is installed and used can be avoided, and the cable is more durable.

In some embodiments of the present utility model, a fire-proof isolation layer 600 is further disposed between the inner wall of the outer sheath 500 and the outer wall of the metal layer 400, and the fire-proof isolation layer 600 is used for fire retardation. Wherein, the fire barrier 600 includes: a fire barrier 610 and a barrier 620. The fireproof layer 610 is disposed between the inner wall of the outer sheath 500 and the outer wall of the metal layer 400, the outer wall of the fireproof layer 610 is attached to the inner wall of the outer sheath 500, and the fireproof layer 610 is made of mineral materials, so that the wear resistance of the cable can be further enhanced by utilizing the properties of minerals. The isolation layer 620 is arranged between the inner wall of the fireproof layer 610 and the outer wall of the metal layer 400, the outer wall of the isolation layer 620 is attached to the inner wall of the fireproof layer 610, the inner wall of the isolation layer 620 is attached to the outer wall of the metal layer 400, and the metal layer 400 can be completely coated by the isolation layer 620, so that the contact between the metal layer 400 and oxygen is reduced, the oxidation probability of the metal layer 400 can be reduced, and the metal layer 400 can be better sealed to the conductive wire core 100.

In some embodiments of the utility model, the mineral cable further comprises a tape. The belting is located between the outer wall of flame retardant coating 610 and the inner wall of oversheath 500, thereby can play the effect of buffering and liner through the belting and protect the cable not receive the armor when carrying out the armor and damage, also can strengthen the thermal-insulated, anticorrosive, the ageing resistance of cable through the belting, can also tie up each structure of cable inside through the belting, prevent that cable inner structure is loose to improve the protection effect to conductive core 100.

In some embodiments of the present utility model, the plurality of conductive cores 100 are arranged around and uniformly between the plurality of conductive cores 100. And, the outer wall of each conductive wire core 100 is coated with a first insulating layer 200. The plurality of first insulating layers 200 are further coated inside the second insulating layer 300. So that a cavity can be formed between the outer walls of each of the first insulating layers 200 within the second insulating layer 300. The mineral cable also includes a filler layer. The filling layer is arranged in the cavity, so that gaps between the first insulating layers 200 and gaps between the second insulating layers 300 and each first insulating layer 200 can be filled, the outer diameter of the cable is enabled to be round through the arranged filling layer filling the cavity, meanwhile, the filling layer is made of high-temperature resistant materials such as asbestos, the filling layer has good high-temperature resistant performance, and the filling layer can be prevented from being ignited due to overheating of the cable.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "particular examples," "one particular embodiment," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present utility model is not limited to the above preferred embodiments, and any person skilled in the art, within the scope of the present utility model, may apply to the present utility model, and equivalents and modifications thereof are intended to be included in the scope of the present utility model.

Claims

1. A mineral cable comprising:

the conductive wire core is used for conducting current;

the outside of the conductive wire core is sequentially coated with a first insulating layer and a second insulating layer;

the first insulating layer and the second insulating layer are made of mineral materials;

the metal layer is coated on the outer wall of the second insulating layer and is used for sealing the conductive wire core;

the outer sheath is coated on the outer wall of the metal layer, and the outer sheath is used for avoiding abrasion.

2. The mineral cable of claim 1, wherein a fire barrier layer is further provided between the inner wall of the outer jacket and the outer wall of the metal layer, the fire barrier layer being for fire retarding.

3. The mineral cable of claim 2, wherein the fire barrier layer comprises:

the fireproof layer is arranged between the inner wall of the outer sheath and the outer wall of the metal layer;

the isolating layer is arranged between the inner wall of the fireproof layer and the outer wall of the metal layer and is used for preventing the metal layer from being oxidized;

the fireproof layer is made of mineral materials.

4. The mineral cable of claim 3, wherein the plurality of conductive cores are arranged in a surrounding manner;

the outer wall of each conductive wire core is coated with the first insulating layer;

the second insulating layers are coated outside the first insulating layers.

5. The mineral cable of claim 4, further comprising a tape;

the wrapping band is arranged between the outer wall of the fireproof layer and the inner wall of the outer sheath, and the wrapping band is used for binding a plurality of conductive wire cores.

6. The mineral cable of claim 5, further comprising a filler layer;

the filler layer is disposed between the plurality of first insulating layers and between the second insulating layer and each of the first insulating layers.

7. The mineral cable of claim 6, wherein the outer jacket is a halogen-free polyolefin jacket.

8. The mineral cable of claim 7, wherein the thickness of the outer jacket is 5 millimeters or more.

9. The mineral cable of claim 8, wherein the outer wall of the outer jacket is coated with an anti-wear coating for preventing wear.

10. The mineral cable of claim 9, wherein the filler layer is made of a high temperature resistant material.