TWM592155U - Composite anti-mouse/ant electrical cable - Google Patents

Abstract

The present invention discloses a compound rodent-proof ant cable, which includes at least one cable core and a coating layer covering the cable core. The covering layer mainly includes a first covering layer and a second covering layer, wherein the first covering 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 second covering layer is provided On the inside or outside of the first covering layer, the second covering layer contains 0.1 wt% to 5 wt% of a pest repellent, which includes a spicy ingredient and a bitter ingredient. When used, the first cover layer has high physical strength and can resist the gnaw damage of pests such as mice and termites. The second cover layer can produce multiple sensory stimuli to pests such as mice and termites, making it uncomfortable and abandon Eating the cable. Therefore, the service life of the cable can be extended.

Description

Compound anti-mouse ant cable

This creation relates to a cable structure, in particular to a compound rodent-proof ant cable. Its application range includes at least medium and high voltage cables, robot cables, electric vehicle cables, and land cables for wind power generation systems.

Existing power cables mainly include 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 use a high-hardness plastic coating layer, or to use a combination of a high-hardness plastic coating layer and a metal shielding layer (such as a cladding or armor layer) to form a coating layer. It has high physical strength and can resist the gnaw of harmful organisms such as mice and termites. However, the use of high-hardness plastic coatings and metal shields will not only increase the weight of the cable, but also increase the manufacturing cost and complexity; in addition, the impact of high-hardness plastic coatings and metal shields on the outdoor environment such as high temperature, humidity, Ultraviolet light irradiation, acid rain erosion, dust friction, etc., cannot play an effective protective role, and these effects will lead to a reduction in the service life of the cable.

Another common protective measure is to add repellents and/or insecticides to the coating layer or to coat the surface of the coating layer, so that the coating layer has a taste, smell or smell that hates or fears harmful organisms such as mice and termites. Other characteristics (such as viscosity). However, when this type of cable is used in an outdoor environment, the repellent and insecticide easily migrate to the surface of the coating layer and precipitate, posing a threat to the ecological environment.

Therefore, how to solve the problems existing in the existing cable structure to complete the cable with long-term use and anti-mouse and ant functions is actually one of the focuses of those skilled in the art.

The technical problem to be solved in this creation is to provide a compound rodent-proof ant cable that combines physical and chemical protection measures against the deficiencies of the existing technology, which is suitable for outdoor use and can ensure safe and stable power transmission.

In order to solve the above technical problems, one of the technical solutions adopted in this creation is to provide a compound 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 a first covering layer and a second covering layer. The first covering layer is a hard plastic layer with a hardness (Shore D) greater than 60, a metal layer, or a metal-reinforced hard plastic layer. The second covering layer is disposed inside or outside the first covering layer. The second covering layer contains 0.1 wt% to 5 wt% of a pest repellent, which includes a spicy ingredient and a bitter ingredient.

In an embodiment of the present invention, the first covering layer is a rigid plastic layer, which is medium density polyethylene, medium-hardness special polyolefin copolymer (Termigon), nylon or semi-rigid polyvinyl chloride Formed.

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

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

In an embodiment of the present invention, based on the total weight of the pest repellent being 100 wt%, the content of the spicy ingredient is 10 wt% to 20 wt%, and the content of the bitter ingredient is 10 wt% to 50 wt%.

In an embodiment of the present creation, the spicy component is capsaicin, and the bitter component is denatonium benzoate; wherein the spicy component is present in the form of microcapsules.

In an embodiment of the present invention, the spicy ingredient includes 10 wt% to 30 wt% of one of capsaicin and dihydrocapsaicin and 70 wt% to 90 wt% of N-nonanoic acid vanillinamide , And the bitter component is denatonium benzoate; wherein the spicy component exists in the form of microcapsules.

In an embodiment of the present invention, the pest repellent further includes a porous polymer carrier for carrying the spicy component and the bitter component; wherein, the porous polymer carrier The material is ethylene-vinyl acetate copolymer (EVA), linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), or any combination thereof.

In an embodiment of the present invention, the composite rodent-proof cable further includes a multi-functional protective layer, which is disposed on a surface of the first cover layer or the second cover layer and contains 1 wt% Up to 40 wt% organic polysilazane.

In an embodiment of the present invention, the multifunctional protective layer further contains 35 wt% to 79 wt% of the substrate resin, 5 wt% to 10 wt% of Teflon, 5 wt% to 10 wt % Talc and 5 wt% to 10 wt% silica, the substrate resin is acrylic resin, epoxy resin or a combination thereof.

One of the beneficial effects of this creation is that the composite rodent-proof cable of this creation can pass "the first covering 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 technical characteristics of "the second covering layer contains 0.1 wt% to 5 wt% of a pest repellent, which contains a spicy ingredient and a bitter ingredient" to effectively resist the gnaw damage of pests such as mice and termites , And produce multiple sensory stimuli (such as olfactory, taste, pain, and thermal stimuli) to harmful organisms, making them feel uncomfortable and abandon biting the cable. 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 of the cable is damaged, it may cause a sudden power failure and may even cause a major safety accident. 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 composite rodent-proof ant cable, which combines physical and chemical protection measures, and the direct technical effects include: can effectively resist the gnaw damage of pests such as mice and termites, and can make the pest feel It is avoided in an uncomfortable way and has a strong environmental tolerance.

The following is a specific specific example to illustrate the implementation of the "composite rodent-proof cable" disclosed in this creation. Those skilled in the art can understand the advantages and effects of this creation from 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 FIGS. 1 and 2, and in conjunction with FIGS. 3 and 4, the composite rodent-preventing cable Z of the first embodiment of the present invention includes at least one cable core 1 for transmitting electrical signals and one covering the cable core 1包层2。 The coating layer 2. The covering layer 2 includes a first covering layer 21 and a second covering layer 22, which are laminated together; the first covering layer 21 has a high hardness, which can effectively resist the gnaw damage of harmful organisms such as mice and termites The second covering layer 22 contains a pest repellent, which can generate multiple sensory stimuli to pests such as mice and termites, making it uncomfortable and abandoning the cable gnaw. In use, the second cover layer 22 may be disposed outside the first cover layer 21, as shown in FIG. 1, or the second cover layer 22 may be disposed inside the first cover layer 21, as shown in FIG.

The cable core 1 includes a conductor 11 and an insulating layer 12 covering the conductor 11; the conductor 11 may be formed by a plurality of conductors with the same wire diameter (such as copper wires) concentrically stranded or bundled, and the insulating layer 12 may be It is 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. Although the number of cable cores 1 is only shown in Figures 1 and 2, according to different uses, the number of cable cores 1 can also be multiple (such as three or more); when the number of cable cores 1 is multiple There may be fillers (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 structural integrity of the cable.

In this embodiment, the hardness (Shore D) of the first covering layer 21 is greater than 60, preferably greater than 63, and more preferably greater than 65; the thickness of the first covering layer 21 may be 0.5 mm to 15 mm. Further, the first covering layer 21 can be a rigid plastic layer, which can be formed by extrusion molding; considering 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, the first covering layer 21 can also be a metal layer. Further, the metal layer is in the form of a cladding layer, that is, spirally wound by at least one metal tape (not shown), but not limited to this; the metal tape may have a range of 400 N/mm ² to 800 N / mm tensile strength between ² (tensile strength), preferably between 400 N / mm ² to 500 N / mm ² range, and a hardness (HV) of between 100 to 240, preferably via 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, the first covering layer 21 can also be a metal-reinforced hard plastic layer. Further, as shown in FIGS. 3 and 4, 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 technology of the hard plastic layer 21a and the metal layer 21b The features and implementation have been described in the previous paragraphs, so they 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. 3, 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 rigid plastic layer 21a is disposed outside the metal layer 21b, as shown in FIG. 4. In some embodiments, the metal-reinforced hard plastic layer 21a may be a hard plastic layer containing a metal-reinforced material (such as a metal wire).

The material of the second covering layer 22 may be plastic, rubber or thermoplastic elastomer, wherein the content of the pest repellent may be 0.1 wt% to 5 wt%, and the pest repellent mainly includes a spicy ingredient and a bitter taste ingredient. In practical applications, the second cover layer 22 can be formed by extruding a plastic masterbatch incorporating a pest repellent; the plastic masterbatch can be polyvinyl chloride (PVC), polyolefin (polyolefin) such as It is formed by low density polyethylene (LDPE) and medium density polyethylene, thermoplastic polyurethane (TPU), ethylene propylene rubber (EPR) or neoprene (CR). In some embodiments, the content of the pest repellent may be 0.5 wt%, 1 wt%, 1.5 wt%, 2 wt%, 2.5 wt%, 3 wt%, 3.5 wt%, 4 wt% or 4.5 wt% .

Furthermore, the spicy and bitter ingredients stimulate the senses, such as bioreceptor receptors and nerve conduction systems. The spicy ingredients may be natural ingredients, such as capsaicin and its analogs, and preferably capsaicin; as capsaicin analogs, dihydrocapsaicin, nordihydrocapsaicin, high dihydrocapsaicin and high pepper Prime. The spicy ingredient can also be artificially synthesized, and is preferably N-vanillylnonanamide (Nonivamide). In addition, the bitter component may be denatonium benzoate. Considering the use effect and long-term effect, the spicy ingredient may contain one of 10 wt% to 30 wt% of capsaicin and dihydrocapsaicin, preferably dihydrocapsaicin, and 70 wt% to 90 wt% Vanillinamide of N-nonanoic acid. However, this creation is not limited to the examples given above. It is worth noting that compared with dihydrocapsaicin, capsaicin has a double bond in its molecular structure, which is easier to be decomposed by light.

In this embodiment, based on the total weight of the pest repellent being 100 wt%, the content of the spicy ingredients may be 10 wt% to 20 wt%, such as 11 wt%, 12 wt%, 13 wt%, 14 wt%, 15 wt%, 16 wt%, 17 wt%, 18 wt% or 19 wt%; the content of bitter components can be 10 wt% to 50 wt%, for example 15 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt% or 45 wt%. When capsaicin is used as a spicy ingredient, capsaicin can be present in the second covering layer 22 in the form of microcapsules, that is, the second covering layer 22 has a plurality of capsaicin microcapsules evenly distributed (not shown); The material of the microcapsules may include polyvinyl chloride, polyolefins such as polyethylene, and poly(ethylene-co-vinyl acetate) (EVA). In this way, capsaicin can be prevented from migrating to the surface of the second covering layer 22 to be precipitated, and the second covering layer 22 can be entrained by moisture to ensure the use effect of capsaicin.

In practical application, as shown in FIG. 5, the pest repellent 3 further includes a porous polymer carrier 31 for carrying the spicy component 32 and the bitter component 33; and in the presence of the porous polymer carrier 31 , The long-term use effect of the spicy component 32 and the bitter component 33 is better, that is, the porous polymer carrier 31 can adsorb the active components including the spicy component 32 and the bitter component 33, so that it remains in the second covering layer 22 and does not escape To the outside world, and has water and gas barrier effects to prevent the active ingredients from being oxidized. In addition, it can greatly reduce the chance of the active ingredients being decomposed by light.

Further, as shown in FIG. 5, the material of the porous polymer carrier 31 may be ethylene-vinyl acetate copolymer, linear low density polyethylene (LLDPE), and low density polyethylene (low density polyethylene) , LDPE), high density polyethylene (HDPE) or any combination thereof, and can be formed by foam molding. According to actual needs, the pest repellent 3 may include a coating layer 34 covering the porous polymer carrier 31 to facilitate long-term storage of the pest repellent 3; the material of the coating layer 34 may be LDPE or HDPE , But not limited to this.

It is worth noting that the repellent effects of pest repellents on pests include at least: 1. Capsaicin emits a pungent odor, preventing mice and other pests (such as termites) from daring to access the cable; 2. When mice and other When rodents chew on cables, capsaicin can give them a burning and tingling sensation, making them feel uncomfortable and disgusted with gnawing on cables; 3. When rats and other rodents chew on cables, they will feel benzyl The strong bitterness brought by denatonium is disgusting to gnaw the cable. In addition, when the spicy ingredients and bitter ingredients are used together, some rodents due to inborn cognitive impairment, such as the inability to perceive bitter taste, can still play an effective preventive role. In addition, in the presence of bitter ingredients, the amount of spicy ingredients can be reduced, so the pest repellent is not irritating to humans.

In some embodiments, the pest repellent may include an insect repellent component. When the cable is attacked by termites, it will be exposed to the insect repellent component and poisoned to death; based on the total weight of the pest repellent being 100 wt%, The content of the insect repellent may be 0.5 wt% to 5 wt%, and preferably 1 wt% to 3 wt%. Examples of the pest control component of the pest repellent include pyrethrum (Pyrethrum or Pyrethrin), permethrin, Allethrin, Tetramethrin, and dimethine ( Deltamethrin), Cymerthrin and Fenvalerate. However, this creation is not limited to the examples given above. In practical application, the insect-preventing ingredients can be loaded on the porous polymer carrier together with the spicy and bitter ingredients, and evenly distributed through the porous polymer carrier in the second covering layer 22, or directly added to the second covering layer 22 of the raw materials.

In some embodiments, the pest repellent may include a cooling sensation component to enhance the use of capsaicin, that is, the cooling effect of the cooling sensation component may have a synergistic effect on the burning sensation caused by capsaicin. Based on the total weight of the pest repellent being 100 wt%, the content of the cooling sensation component may be 0.5 wt% to 5 wt%, and preferably 1 wt% to 3 wt%. The cooling component may be menthol or its derivatives; as menthol derivatives, there may be mentioned: menthyl lactate, menthone-glycerol ketal, monomethyl succinate ) And p-menthane-3,8-diol (p-menthane-3,8-diol). However, this creation is not limited to the examples given above. In practical application, the cooling component can be loaded on the porous polymer carrier together with the spicy and bitter components, and evenly distributed in the second covering layer 22 through the porous polymer carrier, or directly added to the second covering layer 22 Of raw materials.

[Second Embodiment]

Referring to FIGS. 6 and 7, the composite 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, wherein the coating layer 2 It includes a first covering layer 21, a second covering layer 22 and a first multifunctional protective layer 23, which are laminated together. When in use, the first cover layer 21 has a high hardness, which can effectively resist the gnaw damage of pests such as mice and termites; the second cover layer 22 is disposed on the inside or outside of the first cover layer 21, and the second cover layer 22 Contains pest repellent, which can produce multiple sensory stimuli to pests such as mice and termites, making them feel uncomfortable and disgusting from gnawing on the cable; the first multi-functional protective layer 23 can be provided on the first covering layer 21 and the second Between the covering layers 22, the first multifunctional protective layer 23 contains organic polysilazane, so it has good water and gas barrier, high temperature resistance, chemical corrosion resistance, wear resistance and weather resistance, which can improve the outdoor environment of the cable The tolerance of the cable is to improve the outdoor adaptability of the cable.

Referring to FIGS. 8 and 9, according to actual needs, the composite rodent-proof cable Z may further include a second multi-functional protective layer 24 covering the first covering layer 21 and the second covering layer 22, which also contains organic polymer Silazane, in turn, helps to increase the resistance of cables to outdoor environments. Further, the first and second multifunctional protective layers 23, 24 may have the same composition, wherein the content of the organic polysilazane may be 1 to 40 weight percent; the first and second multifunctional protective layers 23, 24 It can be formed by impregnation or spraying, and its thickness can be 0.005 mm to 2.0 mm; if the thickness of the first and second multi-functional protective layers 23, 24 does not reach 0.005 mm, the above protective effect is not obvious, if the first and The thickness of the second multi-functional protective layers 23 and 24 exceeds 2.0 mm, which increases the production cost.

It is worth noting that the molecular structure of organic polysilazane has Si-N-Si bond and Si-O-Si bond, so it has excellent protection ability, can prevent the invasion of external moisture and gas, and can withstand 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 and second multi-functional protective layers 23, 24, the metal layer (ie, the first covering layer or a part thereof) will not be oxidized and rusted because it is difficult to contact with moisture and air, so it can Extend the service life of the cable.

In consideration of cost, processability and protection ability, the first and second multi-functional protection layers 23 and 24 may further contain 35 to 79 weight percent of base resin, 5 to 10 weight percent of fluoropolymer and 10 to 20 Weight percent inorganic filler; wherein the base resin is acrylic resin, epoxy resin or a combination thereof, the fluoropolymer is Teflon, and the inorganic filler includes 5 to 10 weight percent talc and 5 to 10 weight percent Percentage of silica. However, these details are only for describing possible implementations of the first and second multifunctional protective layers 23, 24 and are not intended to limit the creation. In some embodiments, the first and second multifunctional protective layers 23, 24 may have different compositions.

[Beneficial effect of embodiment]

One of the beneficial effects of this creation is that the composite rodent-proof cable of this creation can pass "the first covering 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 technical characteristics of "the second covering layer contains 0.1 wt% to 5 wt% of a pest repellent, which contains a spicy ingredient and a bitter ingredient" to effectively resist the gnaw damage of pests such as mice and termites , And produce multiple sensory stimuli (such as olfactory, taste, pain, and thermal stimuli) to harmful organisms, making them feel uncomfortable and abandon biting the cable. Therefore, the service life of the cable can be extended, and a safe and stable power supply can be ensured.

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 (ie, the first covering layer or a part thereof) will not be oxidized and rusted because it is difficult to contact with 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: composite anti-mouse ant cable 1: cable core 11: Conductor 12: Insulation 2: coating 21: The first cover layer 21a: Hard plastic layer 21b: metal layer 22: second cover 23: The first multifunctional protective layer 24: Second multi-functional protective layer 3: Pest repellent 31: Porous polymer carrier 32: Spicy ingredients 33: Bitter ingredients 34: coating layer

FIG. 1 is a schematic diagram of one of the structures of the compound rodent-proof cable for creating the first embodiment.

FIG. 2 is another schematic diagram of the structure of the compound rodent-proof cable for creating the first embodiment.

FIG. 3 is a schematic diagram of a partial structure of the first covering layer of the compound rodent-proof cable of the creative embodiment.

FIG. 4 is a schematic diagram of another partial structure of the first covering layer of the compound rodent-proof cable of the creative embodiment.

FIG. 5 is a schematic structural diagram of a pest repellent according to an embodiment.

FIG. 6 is a schematic diagram of one of the structures of the compound rodent-proof cable for creating the second embodiment.

FIG. 7 is another schematic diagram of the structure of the compound rodent-proof cable according to the second embodiment.

FIG. 8 is another schematic diagram of the structure of the compound rodent-proof cable according to the second embodiment.

FIG. 9 is another schematic structural diagram of the composite anti-rodent-ant cable according to the second embodiment.

Z: composite anti-mouse ant cable

1: cable core

11: Conductor

12: Insulation

2: coating

21: The first cover layer

22: second cover

Claims (10)

A compound rodent-proof cable comprising at least one cable core and a coating layer covering at least one cable core, wherein the coating layer comprises: A first covering layer, which is a hard plastic layer, metal layer or metal-reinforced hard plastic layer with a hardness (Shore D) greater than 60; and A second covering layer disposed on the inside or outside of the first covering layer, wherein the second covering layer contains 0.1 wt% to 5 wt% of a pest repellent, and the pest repellent The agent contains a spicy ingredient and a bitter ingredient. The compound rodent-proof cable according to item 1 of the patent application scope, wherein the first 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 compound rodent-proof ant cable as described in item 1 of the patent application scope, wherein the first 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 compound rodent-proof cable according to item 1 of the patent application scope, wherein the first covering layer is a metal-reinforced hard plastic layer, which is a combination of a hard plastic layer and a metal layer; wherein, the The rigid plastic layer is formed of medium density polyethylene, high hardness special polyolefin copolymer (Termigon), nylon or semi-rigid polyvinyl chloride; wherein, the metal layer is formed by wrapping a metal tape, And the metal strip has a tensile strength between 400 N/mm ² and 800 N/mm ² and a hardness (HV) between 100 and 240. The compound rodent-proof ant cable as described in item 1 of the patent application range, wherein the content of the spicy ingredient is 10 wt% to 20 wt% based on the total weight of the pest repellent being 100 wt% , And the content of the bitter component is 10 wt% to 50 wt%. The compound rodent-proof cable according to item 5 of the patent application scope, wherein the spicy component is capsaicin, and the bitter component is denatonium benzoate; wherein, the spicy component In the form of microcapsules. The compound rodent-proof ant cable as described in item 5 of the patent application range, wherein the spicy ingredient contains 10 wt% to 30 wt% of one of capsaicin and dihydrocapsaicin and 70 wt% to 90 wt % N-nonanoic acid vanillylamide, and the bitter component is denatonium benzoate; wherein the spicy component is present in the form of microcapsules. The compound rodent-proof cable according to item 1 of the patent application scope, wherein the pest repellent further comprises a porous polymer carrier for carrying the spicy ingredient and the bitter ingredient; wherein The material of the porous polymer carrier is ethylene-vinyl acetate copolymer (EVA), linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE) or any of them combination. The compound rodent-proof ant cable as described in item 1 of the patent application scope, which further includes a multi-functional protective layer, which is provided on a surface of the first covering layer or the second covering layer and contains 1 wt % To 40 wt% of organic polysilazane. The compound rodent-proof ant cable as described in item 9 of the patent application range, wherein the multifunctional protective layer further contains 35 wt% to 79 wt% of the base resin and 5 wt% to 10 wt% of Teflon ( Teflon), 5 wt% to 10 wt% talc, and 5 wt% to 10 wt% silica, the substrate resin is acrylic resin, epoxy resin or a combination thereof.

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