Cold-resistant antistatic cable

Abstract

The utility model relates to the technical field of cables, in particular to a cold-resistant antistatic cable, which is sequentially provided with a cold-resistant jacket, a heat insulating layer, a shielding layer and an insulating layer from outside to inside, and a plurality of groups of cable cores which are uniformly and annularly arranged at equal intervals are mounted in the insulating layer. According to the utility model, through the arrangement of the cold-resistant outer sleeve, the cable can maintain good physical performance and flexibility in a low-temperature environment; the flexible weaving layer in the heat insulation layer is formed by weaving flexible steel wire strips and glass fibers in a staggered manner, so that the heat insulation effect is enhanced, and the flexibility and the tensile strength of the cable are ensured; the anti-static layer can effectively prevent static accumulation and guarantee the use safety of the cable; the insulating layer can prevent current leakage and ensure power utilization safety, and the flame retardant filling layer in the insulating layer can play a role in flame retardance in case of a fire source, so that the fireproof performance of the cable is improved; and the cable cores are uniformly and annularly arranged in the insulating layer at equal intervals, so that the conductivity and the transmission efficiency of the cable can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a cold-resistant and anti-static cable. Background Technology

[0002] In today's era of widespread application of various electrical equipment and wiring systems, cables, as the key carriers of power and signal transmission, directly affect the stable operation and safe use of equipment. With the diversified development of industrial production, communication technology, and people's living environments, the requirements for cable performance are becoming increasingly stringent. Especially in some special scenarios, such as outdoor facilities in cold regions and environments for electrostatic-sensitive electronic equipment, traditional cables are no longer sufficient. Therefore, the development of cables with cold-resistant and anti-static properties is particularly important. Many existing cables experience hardening and embrittlement of the outer sheath material in low-temperature environments. Ordinary cable sheath materials, such as polyvinyl chloride (PVC), exhibit a sharp decrease in flexibility at low temperatures, making them prone to cracking, exposing the internal structure, and causing safety hazards such as short circuits and leakage. This seriously affects the normal use of cables in cold regions or low-temperature environments. Furthermore, the connection methods between the layers of existing cables are relatively simple, and when subjected to external forces such as pulling, bending, or temperature changes, relative displacement can easily occur between the layers, leading to a decline in the overall performance of the cable. Utility Model Content

[0003] The purpose of this invention is to provide a cold-resistant and anti-static cable to solve the problems of insufficient cold resistance and poor structural stability of existing cables mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The cold-resistant and anti-static cable has a cold-resistant outer jacket, a heat insulation layer, an anti-static layer and an insulation layer arranged sequentially from the outside to the inside. The insulation layer contains several groups of cable cores arranged in a ring at equal intervals.

[0006] The heat insulation layer is provided with a flexible braided layer, which is made of flexible steel wires and glass fibers interwoven together.

[0007] A flame retardant filling layer is provided between the cable core and the insulation layer.

[0008] Preferably, the cold-resistant outer jacket is made of PU polyurethane with a thickness of 1-2mm.

[0009] Preferably, the inner wall of the cold-resistant jacket is provided with a number of uniformly spaced positioning protrusions, which are embedded inside the insulation layer.

[0010] Preferably, the height of the positioning protrusion is 0.5-1mm.

[0011] Preferably, the insulation layer is a polyurethane foam layer with a thickness of 3-5 mm.

[0012] Preferably, the antistatic layer is made of tin foil with a thickness of 0.25-0.5 mm.

[0013] Preferably, the insulating layer is an XLPE cross-linked polyethylene insulating layer with a thickness of 0.5-1 mm.

[0014] Preferably, the cable core includes an inner core made of multiple strands of copper wire twisted together and an enameled layer disposed on the surface.

[0015] Compared with existing technologies, the beneficial effects of this utility model are:

[0016] This cold-resistant and antistatic cable features a cold-resistant outer jacket that allows it to maintain excellent physical properties and flexibility in low-temperature environments. The flexible braided layer within the insulation layer uses a combination of flexible steel wires and glass fiber, enhancing insulation while ensuring flexibility and tensile strength. The antistatic layer effectively prevents static electricity buildup, ensuring cable safety. The insulation layer prevents current leakage, ensuring electrical safety, and its internal flame-retardant filling layer provides flame retardancy when exposed to fire, improving the cable's fire resistance. The evenly spaced, ring-shaped cable cores within the insulation layer ensure conductivity and transmission efficiency. With its superior properties including cold resistance, heat insulation, antistatic properties, flame retardancy, and insulation, this cable is suitable for various complex environments and demanding applications.

[0017] In this cold-resistant and anti-static cable, the inner wall of the cold-resistant jacket is provided with several evenly spaced positioning protrusions. The positioning protrusions are embedded inside the heat insulation layer. The height of the positioning protrusions is 0.5-1mm, which enhances the connection between the cold-resistant jacket and the heat insulation layer, prevents the two from sliding relative to each other, and ensures the stability of the cable structure.

[0018] In this cold-resistant and anti-static cable, the cable core includes an inner core made of multiple strands of copper wire and an enameled layer on the surface. The inner core, made of multiple strands of copper wire, has good conductivity and flexibility. The enameled layer on the surface further improves the insulation performance and corrosion resistance of the inner core, thereby ensuring the conductivity and service life of the cable. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure between the cold-resistant outer jacket and the insulation layer of this utility model;

[0023] 10. Cold-resistant outer jacket; 11. Positioning protrusions;

[0024] 20. Thermal insulation layer; 21. Flexible woven layer;

[0025] 30. Antistatic layer;

[0026] 40. Insulation layer; 41. Flame retardant filler layer;

[0027] 50. Cable core; 51. Inner core; 52. Enamel coating. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] A cold-resistant and anti-static cable, such as Figures 1-3As shown, from the outside to the inside, there are a cold-resistant jacket 10, a heat insulation layer 20, an antistatic layer 30, and an insulation layer 40. Several groups of cable cores 50 are evenly spaced and arranged in a ring within the insulation layer 40. A flexible braided layer 21 is provided within the heat insulation layer 20, which is made of flexible steel wires and glass fiber interwoven. A flame retardant filling layer 41 is provided between the cable cores 50 and the insulation layer 40. The cold-resistant jacket 10 allows the cable to maintain good physical properties and flexibility in low-temperature environments. The flexible braided layer 21 within the heat insulation layer 20 is made of flexible steel wires and glass fiber interwoven. The interwoven glass fibers enhance heat insulation while ensuring the cable's flexibility and tensile strength. The antistatic layer 30 effectively prevents static electricity accumulation, ensuring cable safety. The insulation layer 40 prevents current leakage, ensuring electrical safety, and its internal flame retardant filling layer 41 provides flame retardancy when exposed to fire, improving the cable's fire resistance. The cable cores 50, evenly spaced and arranged in a ring within the insulation layer 40, ensure the cable's conductivity and transmission efficiency. It possesses multiple excellent properties, including cold resistance, heat insulation, antistatic properties, flame retardancy, and insulation, making it suitable for various complex environments and demanding application scenarios.

[0031] It is worth noting that the cold-resistant jacket 10 is made of PU polyurethane with a thickness of 1-2mm. Due to its excellent cold resistance, the cable can maintain stable physical properties in cold environments and is not prone to brittleness and breakage.

[0032] Furthermore, the inner wall of the cold-resistant jacket 10 is provided with several evenly spaced positioning protrusions 11. The positioning protrusions 11 are embedded in the heat insulation layer 20. The protrusion height of the positioning protrusions 11 is 0.5-1mm, which enhances the connection between the cold-resistant jacket 10 and the heat insulation layer 20, prevents the two from sliding relative to each other, and ensures the stability of the cable structure.

[0033] The insulation layer 20 is made of polyurethane foam with a thickness of 3-5mm. With its excellent heat insulation ability, it effectively blocks the influence of external temperature changes on the internal structure, maintains a relatively constant internal temperature of the cable, and ensures the normal operation of the cable.

[0034] It is worth noting that the antistatic layer 30 is made of tin foil with a thickness of 0.25-0.5mm, which can quickly conduct away static electricity, avoid static electricity accumulation from damaging cables and related equipment, and ensure the safety and reliability of cable use.

[0035] It is worth noting that the insulation layer is a 40XLPE cross-linked polyethylene insulation layer with a thickness of 0.5-1mm. It has excellent insulation performance, which can effectively prevent current leakage and ensure electrical safety. At the same time, it has a certain mechanical strength and heat resistance, which enhances the durability of the cable.

[0036] In addition, the cable core 50 includes an inner core 51 made of multiple strands of copper wire and an enameled layer 52 on the surface. The cable core 50, in which the inner core 51 is made of multiple strands of copper wire, has good conductivity and flexibility. The enameled layer 52 on the surface further improves the insulation performance and corrosion resistance of the inner core 51, thereby ensuring the conductivity and service life of the cable.

[0037] The working principle of this cold-resistant and anti-static cable:

[0038] First, the cable is placed in the required environment, and the cold-resistant jacket 10 begins to function. With its excellent cold resistance, it ensures that the cable will not become brittle or crack due to low temperature, thus protecting the basic physical shape and integrity of the cable. At the same time, the positioning protrusions 11 on the inner wall of the cold-resistant jacket 10 are tightly fitted with the heat insulation layer 20, keeping the structure of each layer stable and preventing interlayer displacement due to external forces or other factors during use.

[0039] When there are temperature changes in the environment, the excellent thermal insulation performance of the insulation layer 20 effectively blocks the transmission of external temperature, maintains the relatively stable internal temperature of the cable, and ensures that the antistatic layer 30, insulation layer 40 and cable core 50 inside the cable are in a suitable temperature environment, thus ensuring the normal performance of the cable.

[0040] During use, if static electricity is generated, the antistatic layer 30 can quickly conduct the static electricity away, preventing the accumulation of static electricity from damaging the cables and connected equipment; while the insulating layer 40 always plays an insulating role, preventing current leakage and ensuring electrical safety.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cold-resistant and anti-static cable, characterized in that: From the outside to the inside, there are a cold-resistant outer jacket (10), a heat insulation layer (20), an antistatic layer (30) and an insulation layer (40). The insulation layer (40) contains several sets of cable cores (50) arranged in a ring at equal intervals. The heat insulation layer (20) is provided with a flexible braided layer (21), which is made of flexible steel wires and glass fibers interwoven. A flame retardant filling layer (41) is provided between the cable core (50) and the insulation layer (40).

2. The cold-resistant and antistatic cable according to claim 1, characterized in that: The cold-resistant jacket (10) is made of PU polyurethane with a thickness of 1-2mm.

3. The cold-resistant and antistatic cable according to claim 1, characterized in that: The inner wall of the cold-resistant jacket (10) is provided with a number of uniformly spaced positioning protrusions (11), which are embedded in the heat insulation layer (20).

4. The cold-resistant and antistatic cable according to claim 3, characterized in that: The height of the positioning protrusion (11) is 0.5-1mm.

5. The cold-resistant and antistatic cable according to claim 1, characterized in that: The insulation layer (20) is made of polyurethane foam with a thickness of 3-5 mm.

6. The cold-resistant and antistatic cable according to claim 1, characterized in that: The antistatic layer (30) is made of tin foil with a thickness of 0.25-0.5 mm.

7. The cold-resistant and antistatic cable according to claim 1, characterized in that: The insulation layer (40) is an XLPE cross-linked polyethylene insulation layer with a thickness of 0.5-1mm.

8. The cold-resistant and antistatic cable according to claim 1, characterized in that: The cable core (50) includes an inner core (51) made of multiple strands of copper wire twisted together and an enameled layer (52) disposed on the surface.

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