High-precision parallel four-film covered wire

Abstract

The utility model relates to the technical field of film covered wires, and discloses a high-precision parallel four-film covered wire which comprises an outer insulation protective sleeve, four wires are arranged in the outer insulation protective sleeve, outer filling is arranged between the outer insulation protective sleeve and the wires, inner protective sleeves are arranged on the outer walls of the four wires, and the inner protective sleeves are arranged on the outer walls of the four wires. A flexible separation layer is arranged among the four wires, an inner filler is arranged on one side of the flexible separation layer, the inner filler is arranged on one side of the inner protection sleeve, a protection assembly is arranged in the inner protection sleeve, and the protection assembly is used for protecting the wires. According to the utility model, the problem that the high-precision parallelism of the wires is difficult to keep all the time due to easy displacement and contact among the wires is solved, and the purposes of keeping the consistency of the distance and the parallelism of the wires, remarkably reducing signal crosstalk, optimizing the integrity of signals and ensuring the consistency and the accuracy in high-precision and high-speed data transmission are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of film covered wire, especially to high-precision parallel four film covered wires. BACKGROUND

[0002] High-precision parallel four film covered wires are a multi-conductor structure designed for high-precision signal transmission and anti-interference requirements. Each conductor is covered by a high-performance insulating film and strictly maintained in parallel arrangement, thereby ensuring the consistency of electrical performance. Through precise geometric control and material selection, this cable can achieve precise impedance matching, extremely low signal crosstalk, and excellent anti-electromagnetic interference effect. It is widely used in precision instruments, data transmission, and communication.

[0003] Traditional four film covered wires are usually composed of four conductors, each of which is wrapped with an insulating film to provide basic electrical insulation and physical protection. Due to its simple structure and compact arrangement, traditional four film covered wires are mainly used for general electrical signal transmission, household wiring, and low-frequency low-speed data transmission. This type of cable has a lower cost and is suitable for applications that do not require high precision and anti-interference capability, providing reliable electrical connection and basic safety protection in a relatively loose wiring space.

[0004] Traditional four film covered wires usually only have an insulating film wrapped around each conductor, lacking a dedicated filling or separation material. Therefore, it is difficult to effectively separate the four internal conductors, leading to displacement and contact between the conductors, especially when the cable is bent, vibrates, or stretches, affecting the relative position of the conductors and making it difficult to maintain the high-precision parallelism of the conductors. SUMMARY

[0005] To address the above shortcomings, the utility model provides high-precision parallel four film covered wires, aiming to improve the traditional four film covered wires, which are difficult to effectively separate the four internal conductors, leading to displacement and contact between the conductors, and making it difficult to maintain the high-precision parallelism of the conductors.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: high-precision parallel four film covered wires, including an outer insulating protective sleeve, the inner part of the outer insulating protective sleeve is provided with four conductors, an outer filling is arranged between the outer insulating protective sleeve and the conductors, the outer wall of each of the four conductors is provided with an inner protective sleeve, a flexible separation layer is arranged between each of the four conductors, the flexible separation layer is provided with an inner filling on one side, the inner filling is arranged on one side of the inner protective sleeve, the inner part of the inner protective sleeve is provided with a protection assembly, the protection assembly is used for protecting the conductors;

[0007] The protection assembly comprises an electrically insulating layer arranged inside the inner protective sleeve, and an inner side of the electrically insulating layer is provided with a high-temperature-resistant layer which is attached to the wire.

[0008] Further, the outer insulation protective sleeve is internally provided with a wear-resistant layer, an inner wall of the wear-resistant layer is provided with a tear-resistant layer, an inner wall of the outer insulation protective sleeve is provided with a flame-retardant layer, a flexible layer is arranged between the tear-resistant layer and the flame-retardant layer, and the tear-resistant layer and the flexible layer are arranged inside the outer insulation protective sleeve.

[0009] Further, the high-temperature-resistant layer is arranged inside the inner protective sleeve, and the high-temperature-resistant layer is made of polytetrafluoroethylene material to improve the heat resistance of the inner protective sleeve.

[0010] Further, the outer filling is made of high-density thermoplastic material to improve the overall rigidity of the cable.

[0011] Further, the inner filling is made of a gel-like filler to stabilize the parallelism of the wire.

[0012] Further, the wear-resistant layer is made of polyvinyl chloride to provide wear resistance for the outer insulation protective sleeve.

[0013] Further, the tear-resistant layer is made of thermoplastic polyurethane material, and a metal wire mesh is embedded in the tear-resistant layer to provide tear resistance for the outer insulation protective sleeve.

[0014] Further, the flexible layer is made of silicone rubber to make the outer insulation protective sleeve flexible, and the flame-retardant layer is made of low-smoke halogen-free material.

[0015] The utility model has the advantages of the following beneficial effects:

[0016] 1、The utility model discloses a cable, which comprises four wires, an outer filling, an inner filling, a flexible separation layer, an outer insulation protective sleeve, an electrically insulating layer and a high-temperature-resistant layer.

[0017] 2. The utility model discloses a first wear -resisting layer and anti -tear layer can provide good wear resistance and tensile resistance through the inside setting of outer insulation protection cover, then cooperate flexible layer and fire -retardant layer provide multilayer protection, reached the physical abrasion, bending fatigue and tensile damage that wire is reduced in the use process, make cable more durable under various environments, prolong the life. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a high-precision four-parallel film-covered wire three -dimensional structure schematic diagram is provided;

[0019] Figure 2 The utility model discloses a high-precision four-parallel film-covered wire inner protective sleeve internal structure schematic diagram is provided;

[0020] Figure 3 The utility model discloses a high-precision four-parallel film-covered wire outer insulation protection cover internal structure schematic diagram is provided.

[0021] LEGEND:

[0022] 1, outer insulation protection cover, 2, outer filling, 3, wire, 4, inner protective sleeve, 5, flexible separation layer, 6, inner filling, 7, electrical insulation layer, 8, high temperature resistance layer, 9, wear -resisting layer, 10, anti -tear layer, 11, flexible layer, 12, fire -retardant layer. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only 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 those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Referring to Figure 1 and Figure 2 , the utility model provides an embodiment: high-precision four-parallel film-covered wire, including outer insulation protection cover 1, provides external protection and environmental isolation through outer insulation protection cover 1, the inside setting of outer insulation protection cover 1 has four wires 3, and outer filling 2 is set between outer insulation protection cover 1 and wire 3, improves the overall rigidity of cable through outer filling 2, the outer wall of four wires 3 all is provided with inner protective sleeve 4, and flexible separation layer 5 is set between four wires 3, and four wires 3 are kept the close -up state of fitting through flexible separation layer 5, can improve structural stability, and also can provide flexibility, and flexible separation layer 5 one side is provided with inner filling 6, and inner filling 6 is set on the one side of inner protective sleeve 4, and the inside of inner protective sleeve 4 is provided with protection assembly, and protection assembly is used for protecting wire 3;

[0025] The protection assembly comprises an electrically insulating layer 7 arranged inside the inner protective sleeve 4, which effectively prevents electrical interference between the wires 3, ensures the transmission quality of the signal and the safety of the cable, and the inner side of the electrically insulating layer 7 is provided with a high-temperature-resistant layer 8 which is in close contact with the wires 3 and can withstand high-temperature environment, ensuring that the wires 3 can still maintain normal working state under high temperature;

[0026] Referring to Figure 1 and Figure 3 , the inner wall of the outer insulation protective sleeve 1 is provided with a wear-resistant layer 9, the inner wall of the wear-resistant layer 9 is provided with a tear-resistant layer 10, the wear-resistant layer 9 and the tear-resistant layer 10 can effectively resist external friction and scratching, prolong the service life of the cable, the inner wall of the outer insulation protective sleeve 1 is provided with a flame-retardant layer 12, the internal structure is protected by the flame-retardant layer 12, the safety is ensured, the tear-resistant layer 10 and the flame-retardant layer 12 are provided with a flexible layer 11, the tear-resistant layer 10 and the flexible layer 11 are arranged inside the outer insulation protective sleeve 1, the high-temperature-resistant layer 8 is arranged inside the inner protective sleeve 4, the high-temperature-resistant layer 8 is made of polytetrafluoroethylene material to improve the heat resistance of the inner protective sleeve 4, the outer filler 2 is made of high-density thermoplastic material to improve the overall rigidity of the cable, the inner filler 6 is made of a gel-like filler to stabilize the parallelism of the wires 3, the wear-resistant layer 9 is made of polyvinyl chloride to provide wear resistance to the outer insulation protective sleeve 1, the tear-resistant layer 10 is made of thermoplastic polyurethane material, and the tear-resistant layer 10 is embedded with a metal wire mesh to provide tear resistance to the outer insulation protective sleeve 1, the flexible layer 11 is made of silicone rubber to make the outer insulation protective sleeve 1 flexible, and the flame-retardant layer 12 is made of low-smoke halogen-free material.

[0027] Working principle: when high-precision four-parallel film-coated wires are needed, first, the four wires 3 are separated by the flexible separation layer 5 to further improve the insulation effect, then the middle part of the wires 3 is filled by the inner filler 6, the outer insulation protective sleeve 1 and the wires 3 are filled by the outer filler 2, so that the wires 3 maintain a certain parallelism, which helps to reduce the distortion and interference of the transmission signal, at the same time, the inner protective sleeve 4 is arranged on the outer wall of the wires 3, at this time, the electrically insulating layer 7 inside the inner protective sleeve 4 is used to avoid short circuit and signal interference, to ensure the integrity of the signal, finally, the high-temperature-resistant layer 8 can maintain stable performance in high-temperature environment, which helps to achieve good signal transmission effect and reduce crosstalk and electromagnetic interference;

[0028] In addition, the wear-resistant layer 9 and the tear-resistant layer 10 arranged inside the outer insulation protective sleeve 1 provide physical protection for the entire cable, then the flexible layer 11 provides flexibility, constituting a multi-layer sheath design with soft inner layer and hard outer layer, finally the flame-retardant layer 12 provides certain flame retardancy, and when accidental combustion occurs, low-smoke and halogen-free gas is generated, providing certain safety.

[0029] It should be pointed out finally that: the above only for the preferred embodiments of the utility model have, and do not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. High-precision four-wire flat film cable comprising an outer insulating protective jacket (1), characterized in that: The inner part of the outer insulation protective sleeve (1) is provided with four wires (3), and the outer insulation protective sleeve (1) and the wires (3) are provided with an outer filling (2), the outer walls of the four wires (3) are provided with an inner protective sleeve (4), the four wires (3) are provided with a flexible separation layer (5), one side of the flexible separation layer (5) is provided with an inner filling (6), the inner filling (6) is arranged on one side of the inner protective sleeve (4), and the inner part of the inner protective sleeve (4) is provided with a protection assembly for protecting the wires (3). The protection assembly comprises an electrical insulation layer (7), the electrical insulation layer (7) is arranged in the inner part of the inner protective sleeve (4), and the inner side of the electrical insulation layer (7) is provided with a high-temperature-resistant layer (8) which is in close contact with the wires (3).

2. The high precision parallel four film capacitor winding of claim 1, wherein: The inner part of the outer insulation protective sleeve (1) is provided with a wear-resistant layer (9), the inner wall of the wear-resistant layer (9) is provided with a tear-resistant layer (10), the inner wall of the outer insulation protective sleeve (1) is provided with a flame-retardant layer (12), and the tear-resistant layer (10) and the flame-retardant layer (12) are provided with a flexible layer (11) therebetween, and the tear-resistant layer (10) and the flexible layer (11) are arranged in the inner part of the outer insulation protective sleeve (1).

3. The high precision parallel four film capacitor winding of claim 1, wherein: The high-temperature-resistant layer (8) is arranged in the inner part of the inner protective sleeve (4), and is made of polytetrafluoroethylene material to improve the heat resistance of the inner protective sleeve (4).

4. The high precision parallel four film capacitor winding of claim 1, wherein: The outer filling (2) is made of high-density thermoplastic material to improve the overall rigidity of the cable.

5. The high precision parallel four film capacitor winding of claim 1, wherein: The inner filling (6) is made of a gel-like filler to stabilize the parallelism of the wires (3).

6. The high precision parallel four film capacitor winding of claim 2, wherein: The wear-resistant layer (9) is made of polyvinyl chloride to provide wear resistance for the outer insulation protective sleeve (1).

7. The high precision parallel four film capacitor winding of claim 2, wherein: The tear-resistant layer (10) is made of thermoplastic polyurethane material, and a metal wire mesh is embedded in the inner part of the tear-resistant layer (10) to provide tear resistance for the outer insulation protective sleeve (1).

8. The high precision parallel four film capacitor winding of claim 2, wherein: The flexible layer (11) is made of silicone rubber to make the outer insulation protective sleeve (1) flexible, and the flame-retardant layer (12) is made of low-smoke halogen-free material.

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