Double-layer anti-interference horn wire

Abstract

The utility model relates to a double-layer anti-interference horn wire in the field of horn wires, which comprises a wire core conductor, an insulating layer is wrapped on the wire core conductor, an inner shielding layer is wrapped on the outer surface of the insulating layer, a tensile layer is wrapped on the outer surface of the inner shielding layer, an elastic cavity is formed in the tensile layer, and flexible fillers are filled in the elastic cavity. The outer surface of the tensile layer is wrapped with an inner protection sleeve, the outer surface of the inner protection sleeve is wrapped with an outer shielding layer, the outer surface of the outer shielding layer is wrapped with a woven protection net formed through weaving, and the outer surface of the woven protection net is wrapped with an outer protection sleeve. The tensile strength and the bending resistance of the insulating layer are improved, the durability and the stability of the structure of the insulating layer are maintained, the service life is prolonged, the overall shielding effect is enhanced through the inner shielding layer and the outer shielding layer, and the anti-interference capability, the tensile strength and the durability of the horn wire are improved.

Description

Technical Field

[0001] The utility model relates to the field of speaker cables, in particular to a double-layer anti-interference speaker cable. Background Art

[0002] The main purpose of the double-layer anti-interference speaker cable design is to reduce electromagnetic interference and signal loss during audio transmission, thereby improving sound quality. This type of speaker cable usually adopts a double-layer structure, with the outer layer being a shielding layer to resist external electromagnetic interference, and the inner layer being a signal transmission layer responsible for high-quality transmission of audio signals. In high-end audio systems, double-layer anti-interference speaker cables are widely used to ensure the purity and stability of audio signals.

[0003] The wrapping structure of existing speaker cables is usually composed of a conductor, an insulation layer, a shielding layer and an outer protective layer. The conductor is generally made of multiple strands of fine copper wires twisted together to improve conductivity and flexibility. The insulation layer is wrapped around the outside of the conductor to prevent current leakage and short circuits, while protecting the conductor from the external environment. The shielding layer is wrapped around the outer surface of the insulation layer to resist external electromagnetic interference and ensure the stability of signal transmission. The outer protective layer is used to protect the entire cable body and increase the durability and aesthetics of the cable body.

[0004] However, the outer protective layer of the existing speaker cable is prone to aging, cracking or falling off after long-term use or exposure to harsh environments, thereby increasing the risk of internal leakage and short circuit of the speaker cable. The existing speaker cable is only provided with an outer protective layer to protect the internal structure of the speaker cable, resulting in the outer protective layer being easily pulled and bent after long-term use, thereby causing the internal wire body to break and be damaged, affecting the durability and stability of the speaker cable. In addition, the shielding structure of the existing speaker cable usually adopts a single-layer structure, which makes it easy to be interfered in complex electromagnetic environments. The shielding and anti-interference effect is poor, which affects the sound quality and signal transmission quality, resulting in damage to signal transmission or sound quality, which is not conducive to the use of the speaker cable. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide a double-layer anti-interference speaker cable to solve the technical problems that the speaker cable in the above background technology has poor tensile protection effect, thereby affecting the durability and reliability of use, and the speaker cable has poor shielding and anti-interference effect, which is not conducive to the use of sound quality transmission.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] A double-layer anti-interference speaker cable comprises a core conductor, wherein the core conductor is formed by twisting a plurality of copper wires, an insulating layer is wrapped on the core conductor, an inner shielding layer is wrapped on the outer surface of the insulating layer, a tensile layer is wrapped on the outer surface of the inner shielding layer, a plurality of elastic cavities are formed inside the tensile layer, the elastic cavities are filled with tough fillers, an inner protective sleeve is wrapped on the outer surface of the tensile layer, an outer shielding layer is wrapped on the outer surface of the outer shielding layer, a braided protective net is wrapped on the outer surface of the braided protective net, and an outer protective sleeve is wrapped on the outer surface of the braided protective net.

[0008] Further in the above description, a tensile-resistant tough rope is arranged inside the insulating layer, two groups of core conductors are arranged, and the two groups of core conductors are spirally wound around each other along the outer surface of the tensile-resistant tough rope.

[0009] The tensile strength cord is provided to improve the tensile strength of the core conductor, and at the same time improve the spiral winding effect between the two groups of core conductors, thereby improving the durability of the core conductor.

[0010] Further in the above description, the elastic cavity is distributed in a circumferential manner in the tensile layer and is distributed outside the core conductor in a wrapped manner, and the tough filler is filled in the elastic cavity, and the tough filler is composed of rubber filling particles or glass fiber particles.

[0011] The wrapping effect of the insulating layer is further improved by setting the tensile layer, and the tensile elasticity of the insulating layer is improved by setting the elastic cavity. The anti-extrusion effect of the insulating layer is improved by filling the elastic cavity with tough filler, which prevents damage and pulling of the insulating layer by external extrusion, thereby improving the tensile strength and service life.

[0012] When subjected to extrusion or load, tough fillers can absorb a large amount of energy and produce large deformations, thereby protecting the structure from damage.

[0013] Specifically, the insulating layer is made of polyvinyl chloride (PVC), and the tensile layer is made of polyethylene (PE).

[0014] Further in the above description, the inner protective sleeve is composed of a flame retardant layer, a heat insulation layer and a wear-resistant layer adhered in sequence from the inside to the outside, the flame retardant layer, the heat insulation layer and the wear-resistant layer are bonded in sequence by an adhesive, the flame retardant layer is made of low-smoke halogen-free PVC insulating material, and the inside of the wear-resistant layer is connected with a plurality of reinforcing ribs, and the reinforcing ribs are distributed circumferentially along the wear-resistant layer.

[0015] The inner protective sheath composed of a flame retardant layer, a heat insulation layer and a wear-resistant layer can further prevent the core conductor from being damaged by external pulling or bending, thereby improving the protective effect on the internal structure of the speaker cable. The flame retardant layer has good insulation and flame retardant properties, and can reduce the generation of toxic gases during combustion, reduce harm to personnel and the environment, and improve environmental protection effects.

[0016] Further in the above description, the woven protective net is made of strong fiber and spandex yarn, the outer surface of the outer protective sleeve is coated with a waterproof coating, and the outer protective sleeve is made of transparent PE material.

[0017] The woven protective net is set up to improve the tensile strength and toughness, which can effectively resist external physical tension and wear resistance.

[0018] Further in the above description, the inner shielding layer and the outer shielding layer are both formed by wrapping aluminum foil.

[0019] By setting the inner shielding layer and the outer shielding layer, a double-layer anti-interference shielding layer is formed, thereby improving the anti-interference effect of use.

[0020] The beneficial effects of the utility model are as follows: by wrapping the wire core conductor with an insulating layer and wrapping the inner shielding layer with the insulating layer, the anti-interference ability of the speaker cable is enhanced, the electromagnetic interference from the outside of the wire core conductor is effectively shielded, and the stability of transmission is ensured; by setting a tensile layer and an elastic cavity formed inside the elastic cavity and filling it with tough filler, the tensile strength and bending resistance of the insulating layer are improved, the pulling and bending of the insulating layer are reduced, the durability and stability of the insulating layer structure are maintained, and the service life is extended; the inner protective sleeve provides stable protection for the internal structure of the speaker cable, and the outer protective sleeve serves as the outermost layer of protection, which improves the durability and protective effect of the speaker cable, ensures that the speaker cable can work stably in various harsh environments, and extends the overall service life of the product; the overall shielding effect is enhanced by setting the inner shielding layer and the outer shielding layer, so that the signal transmission is more stable and reliable, and the anti-interference ability, tensile strength and durability of the speaker cable are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0022] Figure 2 is a cross-sectional schematic diagram of this embodiment;

[0023] Figure 3 This is a schematic diagram of the structure of the inner protective sleeve in this embodiment;

[0024] The reference numerals in the figure are: 1-core conductor, 2-insulating layer, 3-inner shielding layer, 4-tensile layer, 5-elastic cavity, 6-tough filler, 7-inner protective sleeve, 71-flame retardant layer, 72-thermal insulation layer, 73-wear-resistant layer, 74-reinforcement rib, 8-outer shielding layer, 9-braided protective net, 10-outer protective sleeve, 11-tensile tough rope. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] In this embodiment, refer to Figure 1-Figure 3 A double-layer anti-interference speaker cable is specifically implemented, including a core conductor 1, which is formed by twisting copper wires, and the core conductor 1 is wrapped with an insulating layer 2, the outer surface of the insulating layer 2 is wrapped with an inner shielding layer 3, the outer surface of the inner shielding layer 3 is wrapped with a tensile layer 4, six elastic cavities 5 are formed inside the tensile layer 4, and the elastic cavities 5 are filled with tough fillers 6. The outer surface of the tensile layer 4 is wrapped with an inner protective sleeve 7, the outer surface of the inner protective sleeve 7 is wrapped with an outer shielding layer 8, the outer surface of the outer shielding layer 8 is wrapped with a braided protective net 9 formed by weaving, and the outer surface of the braided protective net 9 is wrapped with an outer protective sleeve 10.

[0027] The insulating layer 2 is provided with a tensile toughness rope 11 inside, and two groups of core conductors 1 are provided, and the two groups of core conductors 1 are spirally wound around each other along the outer surface of the tensile toughness rope 11. The tensile toughness rope 11 is provided to improve the tensile effect of the core conductor 1, and at the same time improve the effect of the spiral winding between the two groups of core conductors 1, thereby improving the durability of the core conductor 1.

[0028] The elastic cavity 5 is circumferentially distributed in the tensile layer 4 and wrapped outside the core conductor 1. The resilient filler 6 is filled in the elastic cavity 5. The resilient filler 6 is composed of rubber filling particles or glass fiber particles. The tensile layer 4 is provided to further improve the wrapping effect of the insulating layer 2, and the elastic cavity 5 is provided to improve the tensile elasticity of the insulating layer 2. The resilient filler 6 filled in the elastic cavity 5 improves the anti-extrusion effect of the insulating layer 2, prevents the insulating layer 2 from being damaged and pulled by external extrusion, and thus improves the tensile strength and service life.

[0029] The tough filler 6 can absorb a large amount of energy and produce a large deformation when subjected to extrusion or load, thereby protecting the structure from damage. Specifically, the insulating layer 2 is made of polyvinyl chloride (PVC), and the tensile layer 4 is made of polyethylene (PE).

[0030] The inner protective sleeve 7 is composed of a flame retardant layer 71, a heat insulating layer 72 and a wear resistant layer 73 which are sequentially adhered from the inside to the outside. The flame retardant layer 71, the heat insulating layer 72 and the wear resistant layer 73 are sequentially adhered by an adhesive. The flame retardant layer 71 is made of low-smoke halogen-free PVC insulating material. The wear resistant layer 73 is internally connected with reinforcing ribs 74, which are distributed circumferentially along the wear resistant layer 73. The inner protective sleeve 7 composed of the flame retardant layer 71, the heat insulating layer 72 and the wear resistant layer 73 can further prevent the damage to the wire core conductor 1 caused by external pulling or bending, improve the protection effect of the internal structure of the speaker wire, and the flame retardant layer 71 has good insulation and flame retardant properties, and can reduce the generation of toxic gases during combustion, reduce harm to personnel and the environment, and improve the environmental protection effect.

[0031] The braided protective net 9 is made of strong fiber and spandex yarn, and the outer surface of the outer protective cover 10 is coated with a waterproof coating, and the outer protective cover 10 is made of transparent PE material. The braided protective net 9 is provided to improve the tensile strength and toughness, and can effectively resist the external physical tension and wear resistance.

[0032] The inner shielding layer 3 and the outer shielding layer 8 are both formed by wrapping aluminum foil. Through the arrangement of the inner shielding layer 3 and the outer shielding layer 8, a double-layer anti-interference shielding layer is formed to improve the anti-interference effect of use.

[0033] Specifically, the layered forming in this embodiment belongs to the conventional technical means of those skilled in the art and will not be elaborated in detail here, wherein the outer protective sleeve 10 is a PE protective sleeve.

[0034] The specific structure in this embodiment is as follows: the core conductor 1 is wrapped with an insulating layer 2 to effectively isolate the core conductor 1 from direct contact with the external environment, prevent current leakage and short circuit risks, and ensure safe use; the insulating layer 2 is wrapped with an inner shielding layer 3 to enhance the anti-interference ability of the speaker line, effectively shield electromagnetic interference from the outside of the core conductor 1, and ensure the stability of transmission; the tensile layer 4 is adhered to the inner shielding layer 3 and the elastic cavity 5 formed inside and filled with tough filler 6 to improve the tensile strength and bending resistance of the insulating layer 2, reduce the pulling and bending of the insulating layer 2, and maintain the durability of the insulating layer 2 structure. The inner protective sleeve 7 provides stable protection for the internal structure of the speaker cable. The braided protective net 9 is provided to improve the wear resistance of the core conductor 1 and effectively resist external mechanical extrusion and wear. The outer protective sleeve 10 is used as the outermost layer of protection to improve the durability and protection effect of the speaker cable, ensure that the speaker cable can work stably in various harsh environments, and extend the overall service life of the product. The inner shielding layer 3 and the outer shielding layer 8 are provided to enhance the overall shielding effect, make the signal transmission more stable and reliable, and improve the anti-interference ability, tensile strength and durability of the speaker cable.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A double-layer anti-interference speaker cable, comprising a core conductor, wherein the core conductor is formed by twisting a plurality of copper wires, and wherein: The core conductor is wrapped with an insulating layer, the outer surface of the insulating layer is wrapped with an inner shielding layer, the outer surface of the inner shielding layer is wrapped with a tensile layer, a plurality of elastic cavities are formed inside the tensile layer, the elastic cavities are filled with tough fillers, the outer surface of the tensile layer is wrapped with an inner protective sleeve, the outer surface of the inner protective sleeve is wrapped with an outer shielding layer, the outer surface of the outer shielding layer is wrapped with a woven protective net formed by weaving, and the outer surface of the woven protective net is wrapped with an outer protective sleeve.

2. A double-layer anti-interference speaker cable according to claim 1, characterized in that: A tensile-resistant tough rope is arranged inside the insulating layer, and two groups of core conductors are arranged, and the two groups of core conductors are spirally wound around each other along the outer surface of the tensile-resistant tough rope.

3. A double-layer anti-interference speaker cable according to claim 1, characterized in that: The elastic cavity is distributed in a circumferential manner in the tensile layer and is distributed outside the core conductor in a wrapped manner. The elastic cavity is filled with a tough filler, which is composed of rubber filling particles or glass fiber particles.

4. A double-layer anti-interference speaker cable according to claim 1, characterized in that: The inner protective sleeve is composed of a flame retardant layer, a heat insulation layer and a wear-resistant layer adhered in sequence from the inside to the outside. The flame retardant layer, the heat insulation layer and the wear-resistant layer are bonded in sequence by an adhesive. The flame retardant layer is made of low-smoke halogen-free PVC insulating material. The inside of the wear-resistant layer is connected with a plurality of reinforcing ribs, and the reinforcing ribs are distributed circumferentially along the wear-resistant layer.

5. A double-layer anti-interference speaker cable according to any one of claims 1 to 4, characterized in that: The braided protective net is made of strong fiber and spandex yarn, the outer surface of the outer protective sleeve is coated with a waterproof coating, and the outer protective sleeve is made of a transparent PE material.

6. A double-layer anti-interference speaker cable according to any one of claims 1 to 4, characterized in that: The inner shielding layer and the outer shielding layer are both formed by wrapping aluminum foil.

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