High-tensile spring video transmission signal cable

Abstract

The utility model relates to the technical field of cables, and discloses a high tensile spring video transmission signal cable, which comprises conductors, insulating layers, shielding layers, fillers, a protective layer, a braided shielding layer and a sheath layer, the conductors are wrapped by the insulating layers to form insulating core wires, a plurality of insulating core wires are twisted to form grouped cable cores, and the grouped cable cores are wrapped by the fillers. The grouped cable cores, fillers and partial insulating core wires are twisted to form a cable core, a protective layer, a braided shielding layer and a sheath layer are sequentially coated outside the cable core, the whole cable is subjected to high-temperature spring treatment to form a spring cable, the spring cable is formed by twisting silver-plated copper alloy monofilaments and high-strength fibers such as aramid fibers, and the high-strength fibers are filled to form the spring cable. The tensile strength and the wear resistance of the cable are remarkably improved, so that the cable can bear repeated bending and stretching in a severe environment, the service life is prolonged, and the cable can work in an outdoor repeated stretching and rebounding environment for a long time.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a high tensile spring video transmission signal cable. Background Technology

[0002] Spiral cables, also known as spring cables or slingshot cables, are a type of electrical cable widely used in various industries. A spiral cable is a straight cable made by twisting one or more insulated conductors together. Through specific processing, it is bent onto a metal core to form a spiral shape. Due to its good flexibility and elasticity, it has a wide range of applications in various industries. However, when used for current transmission in field helmets and video equipment, the cable often needs to be repeatedly bent and stretched, resulting in poor electrical performance stability and affecting information transmission. Therefore, a high-tensile-strength spring video transmission signal cable is proposed to solve the aforementioned problems. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a high tensile spring video transmission signal cable, including a conductor, an insulation layer, a shielding layer, a filler, a protective layer, a braided shielding layer, and a sheath layer. The conductor is covered by the insulation layer to form an insulated core wire. Multiple insulated core wires are twisted together to form a grouped cable core. The grouped cable core is twisted together with the filler and some insulated core wires to form a cable core. The cable core is covered with a protective layer, a braided shielding layer, and a sheath layer in sequence. The entire cable is subjected to high-temperature springing treatment to form a spring cable.

[0004] Furthermore, the conductor is a high-strength silver-plated composite conductor, which is made of silver-plated copper alloy monofilament twisted together with high-strength fiber.

[0005] Furthermore, the high-strength fiber is aramid fiber.

[0006] Furthermore, the shielding layer includes an aluminum foil wrapping shielding layer, which covers the outside of the grouped cable core.

[0007] Furthermore, the aluminum foil wrapping shielding layer is made of double-sided polyester aluminum-plastic composite tape.

[0008] Furthermore, the filler is a high-strength fiber filler, specifically para-aramid fiber filaments.

[0009] Furthermore, the protective layer is a wrapped protective layer, which is made by wrapping polyester tape.

[0010] Furthermore, the braided shielding layer is a tin-plated braided shielding layer, which is braided using tin-plated round copper wire, and the braiding density reaches more than %.

[0011] Furthermore, the sheath layer is extruded from a polyether-type polyurethane elastomer material, and the entire cable undergoes high-temperature springing treatment after the sheath layer is extruded to form a spring cable.

[0012] The beneficial effects of this utility model are as follows: By setting a high-strength silver-plated composite conductor, which is made of silver-plated copper alloy monofilament twisted with high-strength fibers such as aramid fibers, and filled with high-strength fibers, this utility model significantly improves the tensile strength and wear resistance of the cable, enabling it to withstand repeated bending and stretching in harsh environments, extending its service life, and meeting the requirements for long-term outdoor repeated stretching and rebounding environments. The insulation layer uses foamed FEP material, which has excellent electrical performance and low loss characteristics, ensuring stable transmission of video signals. At the same time, the setting of aluminum foil wrapping shielding layer and tin-plated braided shielding layer further reduces signal interference and attenuation, and improves the quality of signal transmission. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0014] The components are: 1. Conductor; 2. Insulation layer; 3. Insulated core wire; 4. Shielding layer; 5. Filler; 6. Protective layer; 7. Braided shielding layer; 8. Sheath layer. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] In the embodiments, by Figure 1 Provided is a high-tensile-strength spring video transmission signal cable, comprising a conductor 1, an insulation layer 2, a shielding layer 4, a filler 5, a protective layer 6, a braided shielding layer 7, and a sheath layer 8. The conductor 1 is covered by the insulation layer 2 to form insulated core wires 3. Multiple insulated core wires 3 are twisted together to form grouped cable cores. The grouped cable cores are twisted together with the filler 5 and some of the insulated core wires 3 to form a cable core. The cable core is sequentially covered by the protective layer 6, the braided shielding layer 7, and the sheath layer 8. The cable as a whole undergoes high-temperature springing treatment to form a spring cable. The conductor 1 serves as the signal carrier, enabling efficient transmission of video information. The conductor 1 is tightly bound by the insulation layer 2. The tightly wrapped, insulated core 3 not only ensures electrical isolation between conductors and prevents signal interference, but also provides physical protection for the conductors, increasing the cable's durability and safety. The protective layer 6 and braided shielding layer 7, sequentially wrapped around the core, provide additional protection and shielding, effectively preventing external electromagnetic interference and physical damage. This high-tensile-strength spiral video transmission signal cable uses a high-strength silver-plated composite conductor, a silver-plated copper alloy and aramid stranded together, significantly enhancing the cable's overall tensile and bending resistance. Its bending resistance can withstand a 2kg load for over 15,000 cycles. Foamed FEP insulation, with a foaming degree maintained at approximately 25%, has a lower dielectric constant, allowing it to match impedance requirements while reducing the outer diameter, ensuring video signal transmission at 500MHz. High-strength aramid filler significantly increases the cable's tensile strength, with a maximum breaking force of 1000N and above. The polyurethane elastomer material has high mechanical strength, wear resistance, and mildew resistance, meeting the requirements of field use environments.

[0019] Reference by Figure 1 Among them, conductor 1 is a high-strength silver-plated composite conductor, which is made of silver-plated copper alloy monofilament twisted with high-strength fiber, wherein the high-strength fiber is aramid fiber;

[0020] With the above structural design, the silver-plated copper alloy monofilament, as the core part of the conductor, has excellent conductivity and can transmit video signals or other electrical signals efficiently and stably. The silver plating layer further enhances the conductivity and oxidation resistance of the conductor, ensuring the quality of the signal during transmission. The high-strength aramid fiber is twisted together with the silver-plated copper alloy monofilament, which significantly improves the tensile strength and fatigue resistance of the conductor.

[0021] Reference by Figure 1 Among them, insulation layer 2 is a foamed insulation layer, and the material is foamed FEP;

[0022] With the above structural design, foamed FEP has excellent insulation properties, effectively isolating the conductor from the external environment and preventing current leakage and short circuits.

[0023] Reference by Figure 1 Among them, the shielding layer 4 includes an aluminum foil wrapping shielding layer, which covers the outside of the grouped cable core;

[0024] With the above structural design, the aluminum foil wrapping shielding layer tightly covers the outside of the grouped cable core, forming a continuous metal barrier that can effectively block interference from external electromagnetic fields and prevent them from affecting the internal signal transmission. At the same time, it can also prevent internal signals from leaking outward, ensuring the confidentiality and integrity of the signals.

[0025] Reference by Figure 1 The aluminum foil wrapping shielding layer is made of double-sided polyester aluminum-plastic composite tape.

[0026] Reference by Figure 1 Among them, filler 5 is high-strength fiber filler, specifically para-aramid fiber filament;

[0027] With the above structural design, para-aramid fiber filaments, as fillers, can be tightly filled inside the cable core, providing stable structural support for the cable, helping to maintain the circular cross-section of the cable, preventing the cable core from deforming or twisting during bending or stretching, thereby ensuring stable signal transmission.

[0028] Reference by Figure 1 Among them, protective layer 6 is a wrapping protective layer, which is made of polyester tape wrapping;

[0029] Through the above structural design, the polyester tape wrapping layer plays a buffering and isolation role in the cable. When the cable is subjected to external impact or compression, the polyester tape can absorb part of the impact force, protecting the internal cable core and insulation layer from damage. At the same time, it can also isolate external moisture, dampness, oil and other harmful substances, preventing them from penetrating into the cable and affecting the cable's performance and service life.

[0030] Reference by Figure 1 Among them, the braided shielding layer 7 is a tin-plated braided shielding layer, which is made of tin-plated round copper wire and the braiding density reaches more than 85%.

[0031] With the above structural design, the shielding layer made of tin-plated round copper wire has excellent conductivity, which can effectively confine electromagnetic waves inside the cable and prevent them from radiating outward or being interfered with by external electromagnetic waves.

[0032] Reference by Figure 1 The sheath layer 8 is made of polyether-type polyurethane elastomer material extruded, and the entire cable is spring-cured at high temperature after the sheath layer 8 is extruded to form a spring cable.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-tensile-strength spring video transmission signal cable, characterized in that: The cable includes a conductor (1), an insulation layer (2), a shielding layer (4), a filler (5), a protective layer (6), a braided shielding layer (7), and a sheath layer (8). The conductor (1) is covered by the insulation layer (2) to form an insulated core wire (3). Multiple insulated core wires (3) are twisted together to form a grouped cable core. The grouped cable core is twisted together with the filler (5) and some of the insulated core wires (3) to form a cable core. The cable core is covered with a protective layer (6), a braided shielding layer (7), and a sheath layer (8) in sequence. The entire cable is subjected to high-temperature springing treatment to form a spring cable.

2. The high tensile strength spring video transmission signal cable according to claim 1, characterized in that: The conductor (1) is a high-strength silver-plated composite conductor, which is made of silver-plated copper alloy monofilament twisted with high-strength fiber.

3. The high tensile strength spring video transmission signal cable according to claim 2, characterized in that: The high-strength fiber is aramid fiber.

4. The high tensile strength spring video transmission signal cable according to claim 1, characterized in that: The insulating layer (2) is a foamed insulating layer, and the material is foamed FEP.

5. The high tensile strength spring video transmission signal cable according to claim 1, characterized in that: The shielding layer (4) includes an aluminum foil wrapping shielding layer, which covers the outside of the grouped cable core.

6. The high tensile strength spring video transmission signal cable according to claim 5, characterized in that: The aluminum foil wrapping shielding layer is made of double-sided polyester aluminum-plastic composite tape.

7. The high tensile strength spring video transmission signal cable according to claim 1, characterized in that: The filler (5) is a high-strength fiber filler, specifically a para-aramid fiber filament.

8. The high tensile strength spring video transmission signal cable according to claim 1, characterized in that: The protective layer (6) is a wrapping protective layer, which is made of polyester tape.

9. The high tensile strength spring video transmission signal cable according to claim 1, characterized in that: The braided shielding layer (7) is a tin-plated braided shielding layer, which is made of tin-plated round copper wire and the braiding density reaches more than 85%.

10. A high tensile strength spring video transmission signal cable according to claim 1, characterized in that: The sheath layer (8) is extruded from polyether-type polyurethane elastomer material, and the entire cable is subjected to high-temperature springing treatment after the sheath layer (8) is extruded to form a spring cable.

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