TWM593642U - Electric cable to prevent rats and ants with long-acting effect - Google Patents

Abstract

The invention discloses a long-acting rodent-proof cable, which includes at least one cable core and a coating layer covering the cable core. The covering layer mainly includes a covering layer and a multifunctional protective layer. The covering layer has an outer surface and an inner surface opposite to each other. The covering layer is a hard plastic layer with a hardness (Shore D) greater than 60, a metal layer or a metal-reinforced hard layer Plastic layer. The multifunctional protective layer is arranged on the outer surface of the covering layer, and the multifunctional protective layer contains organic polysilazane. In the long-acting rodent-proof cable created by the author, the coating layer does not contain any toxic substances, and has a high physical strength to avoid being bitten by harmful organisms such as mice and termites. It has a long service life and is safe and reliable.

Description

Long-term anti-mouse ant cable

This creation relates to a cable structure, in particular to a long-acting rodent-proof cable, and its application scope includes at least medium and high voltage cables, robot cables, electric man cables and land cables of wind power generation systems.

The existing power cable mainly includes a cable core and a coating layer covering the cable core. The coating layer is generally formed of plastic, rubber or thermoplastic elastomer, which is difficult to resist rodent (such as mouse) biting and termite decay. For power cables installed outdoors (such as buried underground), the coating layer is more susceptible to damage by rodents and termites, and once the coating layer is damaged, the inner cable core will be directly exposed; in this way, it is easy A short-circuit accident occurs, resulting in a sudden power outage. In severe cases, it may cause major safety accidents and economic losses.

In order to prevent the cable coating layer from being damaged by biting, a common protective measure is to add repellent and/or insecticide to the coating layer or coat the surface of the coating layer, so that the coating layer is harmful to mice, termites, etc. Taste, smell, or other characteristics (such as stickiness) that creatures hate or fear. Although such protective measures can reduce the damage to the cable caused by harmful organisms such as mice and termites, its impact on the outdoor environment such as high temperature, humidity, ultraviolet light exposure, acid rain erosion, dust friction, etc., cannot play a long-term effective protection. , And these effects will lead to a reduction in the number of years of cable anti-mouse ant effect.

Therefore, how to solve the problems existing in the existing cable structure to complete a cable that has both common-use and anti-mouse ant functions is one of the focuses of those skilled in the art.

The technical problem to be solved in this creation is to provide a long-lasting rodent-proof cable suitable for outdoor use and ensuring safe and stable power transmission in view of the shortcomings of the existing technology.

In order to solve the above technical problems, one of the technical solutions adopted in this work is to provide a long-acting rodent-proof cable, which includes at least one cable core and a coating layer covering at least one of the cable cores. The covering layer includes an inner covering layer and a first multi-functional protective layer, the inner covering layer has an outer surface and an inner surface opposite to each other, and the first multi-functional protective layer is disposed on the inner covering layer On the outer surface; wherein the inner cover layer is a hard plastic layer with a hardness (Shore D) greater than 60, a metal layer or a metal-reinforced hard plastic layer, and the first multifunctional protective layer contains organic polysilicon alkyl.

In an embodiment of the present invention, the inner cover layer is a rigid plastic layer, which is formed of medium density polyethylene, high hardness special polyolefin copolymer, nylon or semi-rigid polyvinyl chloride.

In an embodiment of the present invention, the inner cover layer is a metal layer, which is formed by wrapping a metal tape; wherein, the metal tape has between 400 N/mm ² and 800 N/mm ² Tensile strength and hardness (HV) between 100 and 240.

In an embodiment of the present invention, the inner cover layer is a metal-reinforced hard plastic layer, which is a combination of a hard plastic layer and a metal layer; wherein, the hard plastic layer is medium density polyethylene, high The special hardness polyolefin copolymer, nylon or semi-rigid polyvinyl chloride is formed, the metal layer is formed by wrapping a metal belt, and the metal belt has a range of 400 N/mm ² to 800 N/mm ² Tensile strength and hardness (HV) between 100 and 240.

In an embodiment of the present creation, the hard plastic layer is disposed inside the metal layer.

In an embodiment of the present creation, the metal layer is disposed inside the hard plastic layer.

In an embodiment of the present invention, the content of the organic polysilazane of the first multi-functional protective layer is 1 to 40 weight percent.

In an embodiment of the present invention, the first multi-functional protective layer further contains 35 to 79 weight percent of the base resin, 5 to 10 weight percent of the fluoropolymer, and 10 to 20 weight percent of the inorganic filler.

In an embodiment of the present invention, in the first multifunctional protective layer, the substrate resin is acrylic resin, epoxy resin or a combination thereof, and the fluoropolymer is Teflon The inorganic filler includes 5 to 10 weight percent talc and 5 to 10 weight percent silica.

In an embodiment of the present invention, the long-acting rodent-proof cable further includes a second multi-functional protective layer, which is disposed on the inner surface of the inner cover layer and contains organic polysilazane.

In an embodiment of the present invention, the content of the organic polysilazane of the second multi-functional protective layer is 1 to 40 weight percent.

In an embodiment of the present creation, the second multi-functional protective layer further contains 35 to 79 weight percent of base resin, 5 to 10 weight percent of fluoropolymer, and 10 to 20 weight percent of inorganic filler.

In an embodiment of the present invention, in the second multifunctional protective layer, the substrate resin is acrylic resin, epoxy resin or a combination thereof, and the fluoropolymer is Teflon The inorganic filler includes 5 to 10 weight percent talc and 5 to 10 weight percent silica.

In an embodiment of the present invention, the long-acting rodent-proof cable also includes an outer cover layer, which is disposed on an outer surface of the first multi-functional protective layer.

One of the beneficial effects of this creation is that the long-acting rodent-proof cable of this creation can pass through the "coating layer including an inner cover layer and a first multi-functional protective layer provided on the outer surface of the inner cover layer, wherein The inner cover layer is a hard plastic layer with a hardness (Shore D) greater than 60, a metal layer or a metal-reinforced hard plastic layer, and the first multi-functional protective layer contains organic polysilazane" technical solution to effectively resist mice and Gnawing of harmful organisms such as termites and improving the environmental tolerance of cables. Therefore, the service life of the cable can be extended, and a safe and stable power supply can be ensured.

In order to further understand the characteristics and technical content of this creation, please refer to the following detailed description and drawings of this creation. However, the drawings provided are for reference and explanation only, and are not intended to limit this creation.

When the cable is used outdoors, it will often be bitten by harmful organisms such as mice and termites. Once the insulation coating of the cable is bitten, it will cause a sudden power outage and may even cause major safety accidents. In addition, environmental impacts such as high temperature, humidity, ultraviolet light exposure, acid rain erosion, dust friction, etc., will lead to a reduction in the service life of the cable. Therefore, this creation provides a long-acting rodent-proof cable that can resist the biting of harmful organisms such as mice and termites in a non-toxic and environmentally friendly way, effectively protect the insulation coating from being damaged, and has a strong environmental tolerance .

The following is a specific specific example to illustrate the implementation of the "long-acting anti-mouse-ant cable" disclosed by this creation, and those skilled in the art can understand the advantages and effects of this creation by the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments. The details in this specification can also be based on different views and applications, and various modifications and changes can be made without departing from the concept of this creation. In addition, the drawings in this creation are only a schematic illustration, not based on actual size, and are declared in advance. The following embodiments will further describe the relevant technical content of the creation, but the disclosed content is not intended to limit the protection scope of the creation.

It should be understood that although terms such as “first”, “second”, and “third” may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" as used herein may include any combination of any one or more of the associated listed items, depending on the actual situation.

[First embodiment]

Referring to FIG. 1 and shown in FIGS. 2 to 5, the long-acting rodent-proof cable Z according to the first embodiment of the present invention includes at least one cable core 1 for transmitting electrical signals and a coating layer 2 covering the cable core 1 ; The coating layer 2 includes an inner cover layer 21 and a first multi-functional protective layer 22, wherein the inner cover layer 21 has an outer surface 211 and an inner surface 212 opposite, and the first multi-functional protective layer 22 is disposed on the inner cover On the outer surface 211 of the layer 21. In use, the inner cover layer 21 has a high hardness, and can be prevented from being bitten by harmful organisms such as mice and termites; the first multifunctional protective layer 22 has at least a good water and gas barrier, high temperature resistance, chemical resistance, Wear resistance and weather resistance, and can improve the resistance of the cable to the outdoor environment, that is, improve the outdoor environment adaptability of the cable.

In this embodiment, according to different uses, the long-acting rodent-proof cable Z may include only one cable core 1, as shown in FIG. 1, or may include three or more cable cores 1, as shown in FIG. When the number of cable cores 1 is three or more, there may be a filler 3 (such as various forms of polyethylene, polypropylene, and polyvinyl chloride recycled materials) between the cable core 1 and the coating layer 2 to maintain the cable’s Structural integrity. Further, the cable core 1 includes a conductor 11 and an insulating layer 12 covering the conductor 11; the conductor 11 may be formed by concentric stranding or bundle stranding of multiple wires (such as copper wires) with the same wire diameter, The insulating layer 12 can be formed by extrusion molding using an insulating material. However, these details are only describing the feasible implementation of the cable core 1 and are not intended to limit the creation.

The hardness (Shore D) of the inner cover layer 21 is greater than 60, preferably greater than 63, and more preferably greater than 65; the thickness of the inner cover layer 21 may be 0.5 mm to 15 mm. Further, as shown in FIG. 3, the inner cover layer 21 may be a rigid plastic layer, which may be formed by extrusion molding; considering the physical characteristics, processability and environmental protection, the rigid plastic layer is preferably medium density polyethylene (medium density polyethylene, MDPE), high hardness special polyolefin copolymer (Termigon), nylon (such as nylon 6 and nylon 12) or semi-rigid polyvinyl chloride.

In addition, as shown in FIG. 4, the inner cover layer 21 may also be a metal layer. In this embodiment, the metal layer exists in the form of a cladding layer, that is, it is formed by spirally winding at least one metal tape (not shown), but it is not limited thereto; the metal tape may have a thickness of between 400 N/mm ² Tensile strength between 800 N/mm ² and preferably between 400 N/mm ² and 500 N/mm ² and hardness between 100 and 240 (HV), preferably It is between 100 and 200; as the metal strip forming the metal layer, brass strip (or copper-zinc alloy strip), zinc-copper alloy strip and steel strip can be cited.

In addition, as shown in FIGS. 5 and 6, the inner cover layer 21 may also be a metal-reinforced hard plastic layer. In this embodiment, the metal-reinforced hard plastic layer is a combination of a hard plastic layer 21a and a metal layer 21b, but it is not limited to this; the technical characteristics and implementation of the hard plastic layer 21a and the metal layer 21b have been described In the previous paragraph, it will not be repeated here. In practical applications, the position of the hard plastic layer 21a may be closer to the cable core 1 than the position of the metal layer 21b, that is, the hard plastic layer 21a is disposed inside the metal layer 21b, as shown in FIG. 5, or the position of the metal layer 21b may be The position of the rigid plastic layer 21a is closer to the cable core 1, that is, the metal layer 21b is disposed inside the rigid plastic layer 21a, as shown in FIG. In some embodiments, the metal-reinforced hard plastic layer 21a may be a hard plastic layer containing a metal-reinforced material.

It is worth noting that the first multi-functional protective layer 22 contains organic polysilazane, and its molecular structure has Si-N-Si bonds and Si-O-Si bonds, so it has excellent protective capabilities and can prevent external moisture And gas intrusion, as well as resistance to harsh climatic conditions, chemical corrosion and external wear. The organic polysilazane can be selected from commercially available Durazane ^® series products, preferably Durazane ^® 1500 rapid cure, but not limited thereto. In addition, in the presence of the first multi-functional protective layer 22, the metal layer (that is, the inner cover layer or a part thereof) will not be oxidized and rusted because it is difficult to contact moisture and air, which can extend the service life of the cable.

Further, the content of the organic polysilazane can be 1 to 40 weight percent; in practical applications, the first multi-functional protective layer 22 can be formed by impregnation or spraying, and the thickness of the first multi-functional protective layer 22 can be 0.005 mm to 2.0 mm; if the thickness of the first multi-functional protective layer 22 does not reach 0.005 mm, the above-mentioned protective effect is not obvious. If the thickness of the first multi-functional protective layer 22 exceeds 2.0 mm, the production cost will increase.

In consideration of cost, processability, and protective ability, the first multi-functional protective layer 22 may further contain 35 to 79 weight percent of the base resin, 5 to 10 weight percent of the fluoropolymer, and 10 to 20 weight percent of the inorganic filler ; Where the substrate resin is acrylic resin, epoxy resin or a combination thereof, the fluoropolymer is Teflon, inorganic fillers include 5 to 10 weight percent talc and 5 to 10 weight percent silica . However, these details only describe the feasible implementation of the first multi-functional protective layer 22 and are not intended to limit the creation.

[Second Embodiment]

Referring to FIG. 1 and as shown in FIGS. 7 to 10, the long-acting rodent-proof cable Z according to the second embodiment of the present invention includes at least one cable core 1 for transmitting electrical signals and a coating layer 2 covering the cable core 1 Among them, the covering layer 2 includes an inner covering layer 21, a first multifunctional protective layer 22 and a second multifunctional protective layer 23. The inner cover layer 21 can be a hard plastic layer, a metal layer or a metal-reinforced hard plastic layer, which can effectively resist the biting of harmful organisms such as mice and termites; the first multi-functional protective layer 22 and the second multi-functional protective layer 23 They are respectively arranged on the outer surface 211 and the inner surface 212 of the inner cover layer 21, and both have good water and gas barrier, high temperature resistance, chemical corrosion resistance, wear resistance and weather resistance, which can better improve the cable Tolerance to outdoor environment. The technical features and implementations of the cable core 1, the inner cover layer 21, and the first multi-functional protective layer 22 have been described in the first embodiment, so they will not be repeated here.

In this embodiment, the composition of the second multi-functional protective layer 23 is the same as the composition of the first multi-functional protective layer 22; the second multi-functional protective layer 23 can be formed by impregnation or spraying, and the second multi-functional protective layer 23 The thickness of can be 0.005 mm to 2.0 mm; when the thickness of the second multi-functional protective layer 23 falls within this value range, it can take into account both production costs and protective capabilities. Further, the second multifunctional protective layer 23 contains organic polysilazane, wherein the content of the organic polysilazane can be 1 to 40 weight percent; according to actual needs, the second multifunctional protective layer 23 can further contain 35 to 79% by weight of substrate resin, 5 to 10% by weight of fluoropolymer and 10 to 20% by weight of inorganic filler; wherein the substrate resin is acrylic resin, epoxy resin or a combination thereof, fluoropolymer is Teflon, inorganic fillers include 5 to 10 weight percent talc and 5 to 10 weight percent silica. However, these details only describe the feasible implementation of the second multi-functional protective layer 23 and are not intended to limit the creation. In some embodiments, the first and second multifunctional protective layers 22, 23 may have different compositions.

[Third Embodiment]

Referring to FIG. 1 and as shown in FIGS. 11 to 14, the long-acting rodent-proof cable Z according to the third embodiment of the present invention includes at least one cable core 1 for transmitting electrical signals and a coating layer 2 covering the cable core 1 Among them, the covering layer 2 mainly includes an inner covering layer 21, a first multi-functional protective layer 22 and an outer covering layer 24. The inner cover layer 21 can be a hard plastic layer, a metal layer or a metal-reinforced hard plastic layer, which can effectively resist the biting of harmful organisms such as mice and termites; the first multi-functional protective layer 22 is provided outside the inner cover layer 21 On the surface 211, it has good water and gas barrier, high temperature resistance, chemical corrosion resistance, wear resistance and weather resistance, which can improve the resistance of the cable to the outdoor environment; the outer cover layer 24 is provided in the first multi-function protection The outer surface 221 of the layer 22 is used to improve the reliability of the cable. According to actual needs, the long-acting rodent-proof cable Z may further include a second multi-functional protective layer 23 disposed on the inner surface 212 of the inner cover layer 21. The technical features and implementations of the cable core 1, the inner cover layer 21, and the first and second multi-functional protective layers 22, 23 have been described in the previous embodiments, so they will not be repeated here.

In this embodiment, the material of the outer cover layer 24 can be plastic, rubber, or thermoplastic elastomer, and can be formed by extrusion molding; preferably, the inner cover layer 21 has a higher water absorption capacity than the outer cover layer 24. In some embodiments, the outer cover layer 24 may be polyvinyl chloride (PVC), polyolefin such as low density polyethylene (LDPE) and medium density polyethylene, thermoplastic polyurethane (TPU), ethylene propylene rubber (EPR) ) Or neoprene (CR).

[Beneficial effect of embodiment]

One of the beneficial effects of this creation is that the long-acting rodent-proof cable of this creation can pass through the "coating layer including an inner cover layer and a first multi-functional protective layer provided on the outer surface of the inner cover layer, wherein The inner cover layer is a hard plastic layer with a hardness (Shore D) greater than 60, a metal layer or a metal-reinforced hard plastic layer, and the first multi-functional protective layer contains organic polysilazane" technical solution to effectively resist mice and Gnawing of harmful organisms such as termites and improving the environmental tolerance of cables. Therefore, the service life of the cable can be extended, and the service life can reach more than 20 years, and ensure a safe and stable power supply.

Furthermore, the multi-functional protective layer contains organic polysilazane, which has Si-N-Si bonds and Si-O-Si bonds in its molecular structure, so it has excellent protective capabilities and can prevent the invasion of external moisture and gases , And withstand harsh weather conditions, chemical corrosion and external wear.

Furthermore, in the presence of a multi-functional protective layer, the metal layer (that is, the inner cover layer or a part thereof) will not be oxidized and rusted because it is difficult to contact moisture and air, which can extend the service life of the cable.

The content disclosed above is only a preferred and feasible embodiment of this creation, and does not limit the scope of the patent application for this creation, so any equivalent technical changes made by using this creation specification and graphic content are included in this creation application Within the scope of the patent.

Z: Long-term anti-mouse ant cable 1: cable core 11: Conductor 12: Insulation 2: coating 21: inner cover 21a: Hard plastic layer 21b: metal layer 211: outer surface 212: inner surface 22: The first multi-functional protective layer 221: outer surface 23: The second multifunctional protective layer 24: outer cover 3: filler

FIG. 1 is a schematic structural diagram of a long-acting rodent-proof cable for an embodiment of the invention.

FIG. 2 is another schematic structural diagram of the long-term anti-mouse-ant cable of the creative embodiment.

FIG. 3 is an enlarged schematic view of part III of FIG. 1 according to the first embodiment of the present creation.

FIG. 4 is another enlarged schematic view of part III of FIG. 1 according to the first embodiment of the present creation.

FIG. 5 is another enlarged schematic view of part III of FIG. 1 according to the first embodiment of the present creation.

FIG. 6 is another enlarged schematic view of part III of FIG. 1 according to the first embodiment of the present creation.

7 is an enlarged schematic view of part III of FIG. 1 according to the second embodiment of the present creation.

FIG. 8 is another enlarged schematic view of part III of FIG. 1 according to the second embodiment of the present creation.

FIG. 9 is another enlarged schematic view of part III of FIG. 1 according to the second embodiment of the present creation.

FIG. 10 is another enlarged schematic view of part III of FIG. 1 according to the second embodiment of the present creation.

FIG. 11 is an enlarged schematic view of part III of FIG. 1 according to the third embodiment of the present creation.

FIG. 12 is another enlarged schematic view of part III of FIG. 1 according to the third embodiment of the present creation.

FIG. 13 is another enlarged schematic view of part III of FIG. 1 according to the third embodiment of the present creation.

FIG. 14 is another enlarged schematic view of part III of FIG. 1 according to the third embodiment of the present creation.

Z: Long-term anti-mouse ant cable

1: cable core

11: Conductor

12: Insulation

2: coating

Claims (10)

A long-acting rodent-proof cable, which includes at least one cable core and a coating layer covering at least one of the cable cores, characterized in that the coating layer includes: An inner cover layer having an outer surface and an inner surface opposite to each other, wherein the inner cover layer is a hard plastic layer with a hardness (Shore D) greater than 60, a metal layer or a metal-reinforced hard plastic layer; and A first multifunctional protective layer is provided on the outer surface of the inner cover layer, wherein the first multifunctional protective layer contains organic polysilazane. The long-acting rodent-proof cable according to item 1 of the patent application scope, wherein the inner covering layer is a rigid plastic layer, which is medium density polyethylene (medium density polyethylene), high-hardness special polyolefin copolymer (Termigon) ), formed of nylon or semi-rigid PVC. The long-lasting rodent-proof ant cable as described in item 1 of the patent application scope, wherein the inner covering layer is a metal layer, which is formed by wrapping a metal tape; wherein, the metal tape has a value between 400 N/ Tensile strength between mm ² and 800 N/mm ² and hardness between 100 and 240 (HV). The long-acting rodent-proof cable as described in item 1 of the patent application scope, wherein the inner cover layer is a metal-reinforced hard plastic layer, which is a combination of a hard plastic layer and a metal layer; The rigid plastic layer is formed of medium density polyethylene, high-hardness special polyolefin copolymer (Termigon), nylon or semi-rigid polyvinyl chloride. The metal belt has a thickness of 400 N/mm ² to 800 N Tensile strength between /mm ² and hardness between 100 and 240 (HV). The long-lasting rodent-proof cable according to item 4 of the patent application scope, wherein the hard plastic layer is disposed inside the metal layer. The long-acting rodent-proof ant cable as described in item 4 of the patent application scope, wherein the metal layer is disposed inside the hard plastic layer. The long-acting rodent-proof ant cable as described in item 1 of the patent application range, wherein the content of the organic polysilazane of the first multi-functional protective layer is 1 to 40 weight percent. The long-acting rodent-proof cable according to item 7 of the patent application scope, wherein the first multi-functional protective layer further contains 35 to 79 weight percent of the base resin, 5 to 10 weight percent of the fluoropolymer, and 10 to 20 weight percent inorganic filler. The long-lasting rodent-proof cable according to item 8 of the patent application scope, wherein in the first multi-functional protective layer, the substrate resin is acrylic resin, epoxy resin or a combination thereof, and the The fluoropolymer is Teflon, and the inorganic filler includes 5 to 10 weight percent talc and 5 to 10 weight percent silica. The long-lasting rodent-proof ant cable as described in item 7 of the patent application scope, which further includes a second multifunctional protective layer, which is disposed on the inner surface of the inner cover layer, and the second multifunctional The protective layer has the same composition as the first multi-functional protective layer.

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