Voltage-resistant low-voltage cable

Abstract

The utility model discloses a voltage-resistant low-voltage cable, which comprises an outer protection layer, a waterproof layer arranged in the outer protection layer, a heat-resistant layer arranged in the waterproof layer, a buffer layer arranged in the heat-resistant layer, a fixing layer arranged in the buffer layer, a conductor arranged in the middle of the fixing layer, and a conductor arranged in the middle of the fixing layer. The periphery of the conductor is wrapped by an insulating layer, the periphery of the insulating layer is wrapped by an anti-interference layer, and the interior of the fixing layer is filled with memory sponge. The interior of the cable is filled with the memory sponge, and the memory sponge automatically rebounds and deforms to the original shape under the action of force, so that the interior of the cable can be protected when the cable is subjected to continuous extrusion force. The cable is wrapped by various materials, has very strong protection capability, and is made of the latest scientific and technological materials in the aspect of materials, so that the cable has higher stability under various external extreme conditions, and the safety of construction workers is also guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of pressure-resistant low-voltage cables, in particular to a pressure-resistant low-voltage cable. Background Art

[0002] Cable is a device for transmitting electric energy or signals. It is usually a rope-like cable made of several or several groups of wires twisted together. Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering. The cable has the characteristics of being energized inside and insulated outside. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wires and an insulating layer, and are used to connect circuits, electrical appliances, etc.

[0003] Cables are conductors covered with insulation, protective layers, shielding layers, etc., used to transmit power or signal current or signal voltage. According to voltage, they can be divided into high-voltage cables and low-voltage cables. Although low-voltage cable lines are more expensive and more difficult to lay and maintain than low-voltage overhead lines and low-voltage overhead insulated lines, they are widely used in low-voltage power distribution systems because of their reliable operation, no need for poles, no ground occupation, no obstruction of appearance, and less impact from the outside world. When traditional low-voltage cables are squeezed by the outside world, the internal cable core body will be compressed and deformed, which will directly affect the transmission of internal power. Utility Model Content

[0004] The utility model aims to provide a pressure-resistant low-voltage cable, which solves the problem in the prior art that when the cable is used, it is squeezed and deformed by external force due to different use occasions, resulting in cable failure and affecting power transportation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a voltage-resistant low-voltage cable, comprising an outer protective layer, a waterproof layer is arranged inside the outer protective layer, a heat-resistant layer is arranged inside the waterproof layer, a buffer layer is arranged inside the heat-resistant layer, a fixed layer is arranged inside the buffer layer, a conductor is arranged in the middle of the fixed layer, an insulating layer is wrapped around the conductor, an anti-interference layer is wrapped around the insulating layer, and the fixed layer is filled with memory foam.

[0006] As a further description of the above technical solution: the waterproof layer is made of polyethylene waterproof material.

[0007] As a further description of the above technical solution: the heat-resistant layer is made of silane cross-linked polyethylene material.

[0008] As a further description of the above technical solution: the outer protective layer is made of cross-linked polyethylene material.

[0009] As a further description of the above technical solution: the interference layer is made of tin-plated aluminum material.

[0010] As a further description of the above technical solution: the insulating layer is made of cross-linked vinyl chloride material.

[0011] As a further description of the above technical solution: the fixing layer is made of natural rubber material.

[0012] As a further description of the above technical solution: the conductor is formed by twisting and pressing a plurality of copper wires.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, this pressure-resistant low-voltage cable has a fixed layer inside the cable, which is made of natural rubber material, which can effectively increase the internal supporting force of the cable. It is not easy to deform when subjected to different forces, resulting in unstable cable voltage. At the same time, it also has certain insulation and waterproof properties to protect the internal conductor structure.

[0015] 2. Compared with the prior art, this is a pressure-resistant low-voltage cable; the interior of the cable is filled with memory foam, which will automatically rebound and deform back to its original shape when subjected to force, so that the cable can protect the interior when subjected to continuous squeezing force.

[0016] 3. Compared with the existing technology, this pressure-resistant low-voltage cable is wrapped in multiple layers of materials and has very strong protection capabilities. In terms of materials, it is made of the latest scientific and technological materials. Not only does the cable have stronger stability under various extreme external conditions, but it also ensures the safety of construction workers.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 It is a front structural schematic diagram of the utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model

[0021] Figure 3 This is a detailed schematic diagram of the conductor structure of the utility model

[0022] Legend:

[0023] 1. Outer protective layer; 2. Waterproof layer; 3. Heat-resistant layer; 4. Buffer layer; 5. Fixed layer; 6. Memory foam; 7. Anti-interference layer; 8. Insulation layer; 9. Conductor. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-3 The utility model provides an embodiment of a pressure-resistant low-voltage cable, comprising an outer protective layer 1, a waterproof layer 2 is arranged inside the outer protective layer 1, the outer protective layer 1 uses a cross-linked polyethylene material, and the cross-linked polyethylene material is processed by a special process on the basis of ethylene to improve its heat resistance and aging resistance. The waterproof layer 2 is composed of polyethylene waterproof material. Polyethylene is composed of non-polar saturated high molecular weight hydrocarbons and can effectively prevent liquid from entering the cable. A heat-resistant layer 3 is arranged inside the waterproof layer 2, which is made of silane cross-linked polyethylene material. Ordinary polyethylene is made under the presence of organic peroxides, under a certain temperature and mechanical force, and has high temperature resistance, corrosion resistance, excellent insulation and mechanical strength. A buffer layer 4 is arranged inside the heat-resistant layer 3, and a fixed layer 5 is arranged inside the buffer layer 4. The fixed layer 5 is made of natural rubber material. The fixed layer 5 is made of a material, and is an elastic solid made through solidification, drying and other processing procedures. It has excellent resilience, insulation, water-proofing and plasticity. A conductor 9 is arranged in the middle of the fixed layer 5, and the conductor 9 is wrapped with an insulating layer 8 on the periphery. The insulating layer 8 is made of a cross-linked vinyl chloride material, which has strong insulation and protects the safety of the conductor's work. The insulating layer 8 is wrapped with an anti-interference layer 7 on the periphery. The material used is tin-plated aluminum material. Tin-plated aluminum is a process of covering the surface of an aluminum material with a layer of tin. It has good weldability and very strong corrosion resistance, which can prevent the conductor from being affected by the environment when it is working. The interior of the fixed layer 5 is filled with memory foam 6, which is a polyether polyurethane foam sponge with slow rebound mechanical properties. When the interior of the conductor is squeezed, the memory foam will generate rebound force to protect the internal structure from being compressed and damaged.

[0026] Working principle: When the cable is working, when it is squeezed by external force, the internal fixed layer 5 and memory foam 6 will generate elastic force against the external force. The fixed layer 5 is made of natural rubber material with good compression resistance to extrusion. When the cable is exposed to a humid environment, the outer protective layer 1 and the waterproof layer 2 are both waterproof to protect the internal conductor 9 from being affected. When the cable encounters open flames during work, the heat-resistant layer 3 will protect the inside of the cable from being affected by open flames. The conductor 9 is wrapped by the insulating layer 8. Under the protection of the insulating layer 8, the conductors 9 will not directly contact each other and cause a short circuit. The anti-interference layer 7 surrounds the insulating layer 8, and external electromagnetic interference will not affect the normal operation of the internal conductor.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A pressure-resistant low-voltage cable, comprising an outer protective layer (1), It is characterized in that A waterproof layer (2) is arranged inside the outer protective layer (1), a heat-resistant layer (3) is arranged inside the waterproof layer (2), a buffer layer (4) is arranged inside the heat-resistant layer (3), a fixed layer (5) is arranged inside the buffer layer (4), a conductor (9) is arranged in the middle of the fixed layer (5), an insulating layer (8) is wrapped around the conductor (9), an anti-interference layer (7) is wrapped around the insulating layer (8), and the interior of the fixed layer (5) is filled with memory foam (6).

2. A pressure-resistant low-voltage cable according to claim 1, It is characterized in that The waterproof layer (2) is made of polyethylene waterproof material.

3. A pressure-resistant low-voltage cable according to claim 1, It is characterized in that The heat-resistant layer (3) is made of silane cross-linked polyethylene material.

4. A pressure-resistant low-voltage cable according to claim 1, It is characterized in that The outer protective layer (1) is made of cross-linked polyethylene material.

5. A pressure-resistant low-voltage cable according to claim 1, It is characterized in that The anti-interference layer (7) is made of tin-plated aluminum material.

6. A pressure-resistant low-voltage cable according to claim 1, It is characterized in that The insulating layer (8) is made of cross-linked vinyl chloride material.

7. A pressure-resistant low-voltage cable according to claim 1, It is characterized in that The fixing layer (5) is made of natural rubber material.

8. A pressure-resistant low-voltage cable according to claim 1, It is characterized in that The conductor (9) is formed by twisting and pressing a plurality of copper wires.

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