Special low-temperature-resistant frost-crack-resistant cable
By optimizing the cable's structural design and employing high-performance materials and layered structures, the problems of insufficient bending performance and tensile strength of low-temperature cables in frigid regions have been solved, enabling high-performance use in low-temperature environments.
Patent Information
- Application Number
- CN202422643585.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing low-temperature cables exhibit reduced bending performance and tensile strength in low-temperature environments, failing to meet the usage requirements of frigid regions.
The cable employs a combination structure consisting of a conductor, an insulation layer, a tensile filler layer, a shielding layer, and a sheath layer. The conductor is made of ultra-fine oxygen-free copper wire, the insulation layer is made of PVC material, the tensile filler layer is filled with tough cotton thread, the shielding layer is made of tin-plated copper wire braid, and the sheath layer is made of high-molecular polyurethane material, ensuring the cable's flexibility and tensile strength.
It improves the cable's flexibility and tensile strength, ensuring excellent performance in low-temperature environments, making it suitable for various applications in frigid regions.
Smart Images
Figure CN223566337U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to cable technical field especially relates to a special low temperature resistant anti -frost cable. BACKGROUND
[0002] In today's society, with the continuous progress of science and technology, the continuous development of human economy, human production has extended to many places with bad environment, such as low temperature environment. The production of cold-resistant low-temperature cable is particularly important. This cable still maintains softness and use performance during use in cold regions, and the special low-temperature anti-frost cable can be used in low-temperature cold regions, northeast, wind power generation, solar energy, sewage treatment, electronic security monitoring, oil drilling, metallurgical mining, field exploration, etc. The low-temperature anti-frost cold-resistant low-temperature grade requirements can be divided into minus 15 degrees, minus 40 degrees, minus 60 degrees, etc. Use, minus 15 degrees to minus 60 degrees is generally divided into outdoor environment, minus 200 degrees low-temperature cable is generally used in special occasions. When the existing cable in low temperature state has excellent low temperature resistance and cold resistance, the bending performance and tensile strength are often weakened due to weather.
[0003] Therefore, a special low-temperature anti-frost cable is needed to solve the above technical problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a special low-temperature anti-frost cable to solve the above technical problems.
[0005] To achieve the above object, the utility model provides the following technical scheme: a special low-temperature anti-frost cable, including conductor, insulating layer, tensile filling layer, shielding layer and sheath layer, the sheath layer is provided with a plurality of conductors, and the inner ring of the sheath layer is surrounded by the shielding layer, the conductor is provided with the insulating layer, and the tensile filling layer is arranged between the insulating layer and the shielding layer, the conductor has sub-stranded wire and parent-stranded wire, the sub-stranded wire is formed by collective twisting, and the parent-stranded wire is formed by concentric twisting, the sheath layer is made of high molecular polyurethane material.
[0006] The conductor is a structure of copper wire customization stranding, which is stranded after being finely stranded by superfine oxygen-free copper wire, and the plurality of conductors adopt the structure of multi-stranded stranding.
[0007] The insulating layer is made of PVC material.
[0008] The tensile filling layer is provided with gap filling tenacity cotton thread, and the outer ring of the tensile filling layer is wrapped with non-woven fabric.
[0009] The shielding layer is arranged outside the non-woven fabric, and the shielding layer is a plated tin copper wire weaving structure.
[0010] Compared with the prior art, the utility model has the advantages of
[0011] The utility model discloses a conductor, insulating layer, tensile filling layer, shielding layer and sheath layer are set up, the conductor has the sub -stranded wire and the female stranded wire, and the sub -stranded wire is the collective twisted thread and becomes, and the female stranded wire is the concentric twisted thread and becomes, and the stranded wire that assembles has excellent flexibility, and the structure of the multiple stranded wire is used between the multiple conductors, makes each conductor more closely link together, can repeatedly twist, and the use rate will be greater, and the filling of the conductor between such closeness can make the cable formability more round, and the finished product is more beautiful, and the tensile load is increased, and the cable has higher tensile resistance, and has cold resistance, and improves performance, and the tensile strength is stronger. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a special low temperature resistant anti -frozen cable schematic diagram;
[0013] In the drawing: 1, conductor;2, insulating layer;3, tensile filling layer;4, shielding layer;5, sheath layer. DETAILED DESCRIPTION
[0014] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.
[0015] Please refer to Figure 1 The utility model provides a technical scheme: a special low temperature resistant anti -frozen cable, including conductor 1, insulating layer 2, tensile filling layer 3, shielding layer 4 and sheath layer 5, the sheath layer 5 is provided with multiple conductors 1 in, and the inner ring of sheath layer 5 is surrounded with shielding layer 4, the conductor 1 is equipped with insulating layer 2, and tensile filling layer 3 is arranged between insulating layer 2 and shielding layer 4, the conductor 1 has sub -stranded wire and female stranded wire, and the sub -stranded wire is the collective twisted thread and becomes, and the female stranded wire is the concentric twisted thread and becomes, the sheath layer 5 is made of high molecular polyurethane material.
[0016] The conductor 1 is the structure that copper wire is customized and is stranded, and after the strand is fine stranded after superfine oxygen-free copper wire, and is stranded again, the stranded structure can improve the bending performance of the conductor, and improve the tensile strength.
[0017] Further, the conductor 1 has multiple elements. The element wire is made of oxygen-free copper, copper alloy, copper-clad wire, etc., preferably made of oxygen-free copper. The wire surface can be plated with tin, silver, nickel, etc. In the present embodiment, the element wire is, for example, a tinned soft copper wire.
[0018] Further, the conductor 1 has a sub-strand, namely an ultra-fine oxygen-free copper wire, and a parent-strand, namely a core wire formed by twisting a plurality of sub-strands.
[0019] Further, the sub-strand is formed by collective twisting, and the parent-strand is formed by concentric twisting. The plurality of sub-strands are twisted together in the same direction to form the parent-strand. The parent-strands are concentrically twisted around one or more base wires around them, and the assembled twisted wire has excellent flexibility.
[0020] The plurality of conductors 1 are twisted together in a multi-strand structure, so that the conductors 1 are more closely connected together, can be repeatedly twisted, and have a greater usage rate.
[0021] The insulating layer 2 is made of PVC material, which has good electrical properties, mechanical properties, and flame retardant properties, and is mature, stable, and economical in process and price.
[0022] The gap-filling and toughness-cotton thread is arranged in the tensile filling layer 3, and the non-woven fabric is wrapped around the outer circle of the tensile filling layer 3. After the conductors 1 are tightly twisted together, the close filling between the conductors 1 can make the cable more round and the finished product more beautiful, increase the tensile load, and have more flexibility while maintaining high tensile resistance.
[0023] The arrangement of the non-woven fabric can buffer the impact force caused by the movement of the conductors 1, and can also prevent the conductors 1 from easily spreading out and being more compact.
[0024] The shielding layer 4 is arranged outside the non-woven fabric, and the shielding layer 4 is a woven structure of tinned copper wire. The tinned copper wire has low resistance, is resistant to oxidation and aging, has fast and stable transmission, and can prevent electromagnetic noise interference on the electrical circuit and protect the signal from interference.
[0025] The sheath layer 5 is made of polyurethane material. The polyurethane material has excellent oil resistance, good toughness, wear resistance, cold resistance, low-temperature resistance, water resistance, aging resistance, acid and alkali resistance, weather resistance, long service life, ultraviolet resistance, energy release, and many other excellent functions, and is suitable for extremely harsh environments such as oil pollution and low temperature. In particular, it is particularly suitable for flexible control and connection cables that often come into contact with sharp corners and rough surfaces. The polyurethane with polyester as the basic material will not be decomposed by microorganisms.
[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A special low-temperature resistant and freeze-crack-resistant cable, characterized in that, It includes a conductor (1), an insulation layer (2), a tensile filler layer (3), a shielding layer (4), and a sheath layer (5); the sheath layer (5) contains multiple conductors (1), and the inner ring of the sheath layer (5) is surrounded by a shielding layer (4); the conductor (1) is covered with an insulation layer (2), and a tensile filler layer (3) is provided between the insulation layer (2) and the shielding layer (4); the conductor (1) has a sub-stranded wire and a main stranded wire, the sub-stranded wire is made of collectively twisted wire, and the main stranded wire is made of concentrically twisted wire; the sheath layer (5) is made of high-molecular polyurethane material.
2. The special low-temperature resistant and freeze-crack-resistant cable according to claim 1, characterized in that: The conductor (1) is a structure made of copper wire twisted together, which is formed by twisting ultra-fine oxygen-free copper wire into multiple strands; multiple conductors (1) are twisted together.
3. The special low-temperature resistant and freeze-crack-resistant cable according to claim 1, characterized in that: The insulating layer (2) is made of PVC material.
4. The special low-temperature resistant and freeze-crack-resistant cable according to claim 1, characterized in that: The tensile filling layer (3) is provided with cotton thread for gap filling toughness, and the tensile filling layer (3) is wrapped with non-woven fabric on the outer ring.
5. A special low-temperature resistant and freeze-crack-resistant cable according to claim 1, characterized in that: The shielding layer (4) is located on the outside of the non-woven fabric, and the shielding layer (4) is a tin-plated copper wire braided structure.