Polyethylene insulation multi-layer shielding computer cable

Abstract

The utility model discloses a polyethylene insulation multilayer shielding computer cable which sequentially comprises an outer sheath, an outer shielding layer, an inner protection oxygen barrier layer, an inner shielding layer and an outer wrapping layer from outside to inside, a framework unit and four cable cores are arranged in the outer wrapping layer, the cross section of the framework unit is in a cross shape, and the cross section of the cable cores is in a cross shape. The skeleton unit comprises an annular wrapping layer and four supporting units, a cable core is arranged between every two adjacent supporting units, the skeleton unit is provided with four slots extending along the length direction of the cable, and anti-bending units are installed in the slots. The computer cable has a multi-layer shielding layer structure, so that the cable has a good shielding effect, the stable signal transmission performance of the cable is ensured, and the computer cable is suitable for special environments or application scenes with high signal transmission requirements. Through the cooperation of the skeleton unit and the anti-bending unit, the bending degree of the cable is limited, so that the cable is protected, and the cable is prevented from being excessively bent and damaged.

Description

Technical Field

[0001] The utility model relates to the field of cables, and more specifically to a polyethylene insulated multi-layer shielded computer cable. Background Art

[0002] Computer cables are used to connect computers and related devices, and are used to transmit data, signals, and power to achieve the normal operation of computer systems and the connection of various external devices. Computer cables play the role of a bridge between computers and external devices, and play a vital role in computer systems. The quality and performance of computer cables directly affect the stability, speed, and overall performance of data transmission.

[0003] In computer systems, cables often need to pass through dense electronic devices and lines, which may generate electromagnetic radiation. Existing computer cables have poor shielding effects, and external electromagnetic radiation may penetrate into the cables, thus affecting the stability and reliability of data transmission. Especially in application scenarios with high requirements for signal transmission, poor shielding may cause signal distortion, increased noise or loss, thus affecting the accuracy and integrity of data. In addition, some computer cables need to be moved frequently in the working environment, and the cables may be bent or twisted, which may cause damage to the cable core wire, resulting in interruption or instability of signal transmission, and even circuit failure. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provides a polyethylene insulated multi-layer shielded computer cable.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a computer cable, comprising, from outside to inside, an outer sheath, an outer shielding layer, an inner protective oxygen-isolating layer, an inner shielding layer and an outer sheath, wherein a skeleton unit and four cable cores are arranged in the outer sheath, wherein the cable core comprises two core wires twisted to form a twisted pair group, a sub-item shielding layer wrapping the twisted pair group and an inner sheath wrapping the sub-item shielding layer, wherein the core wire comprises a conductor and an insulating layer wrapping the conductor, wherein the insulating layer is made of polyethylene material, wherein the cross section of the skeleton unit is cross-shaped, wherein the skeleton unit comprises a circular sheath and four supporting units, wherein each supporting unit is connected to the circular sheath with a connecting unit, wherein the circular sheath has a tensile rope, wherein one cable core is arranged between two adjacent supporting units, wherein the skeleton unit has four slots extending along the length direction of the cable, wherein an anti-bending unit is installed in the slot, wherein the anti-bending unit comprises an inserting plate capable of being inserted into the slot and a supporting plate fixedly connected to the inserting plate, wherein the outer surface of the supporting plate has a plurality of convex plates.

[0006] Furthermore, the outer sheath is made of PVC material.

[0007] Therefore, the PVC material has good wear resistance, weather resistance and chemical corrosion resistance, and is easy to process and shape, so that the outer sheath can effectively protect the internal structure of the cable and improve the durability and service life of the cable.

[0008] Furthermore, the outer shielding layer is a copper tape wrapped shielding layer.

[0009] Furthermore, the inner shielding layer is a copper wire braided shielding layer.

[0010] Furthermore, the sub-item shielding layer is a copper wire braided shielding layer.

[0011] Thus, the multi-layer shielding layer structure provides better shielding performance for the cable and effectively prevents interference from interfering signals.

[0012] Furthermore, the plug plate, the support plate and the convex plate are integrally extruded from PVC material.

[0013] Therefore, the structural strength of the bending-resistant unit is large.

[0014] Furthermore, the cross section of the connecting unit is rectangular, and the cross section of the supporting unit is trapezoidal;

[0015] This limits the bending degree of the cable and avoids damage due to excessive bending.

[0016] Furthermore, the annular cladding, the connecting unit and the supporting unit all extend along the length direction of the cable.

[0017] This provides support throughout the entire length of the cable, protecting the cable.

[0018] Furthermore, the skeleton unit is made of silicone rubber material or nylon material.

[0019] Thereby providing reliable protection and support for the cables.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The computer cable of the present application has a multi-layer shielding layer structure, which makes the cable have a good shielding effect, thereby ensuring the stable signal transmission performance of the cable, and is suitable for special environments or application scenarios with high requirements for signal transmission.

[0022] 2. The computer cable of the present application, through the cooperation of the skeleton unit and the anti-bending unit, limits the bending degree of the cable, thereby protecting the cable, avoiding damage due to excessive bending of the cable, ensuring the stability of signal transmission, and extending the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a computer cable;

[0024] Figure 2 This is an enlarged schematic diagram of area A;

[0025] Figure 3 This is a cross-sectional view of a computer cable;

[0026] Figure 4 It is a schematic diagram of component separation;

[0027] Figure 5 This is a magnified schematic diagram of area B.

[0028] Explanation of the reference numerals: 1.1 outer sheath; 1.2 outer shielding layer; 1.3 inner protective oxygen-isolating layer; 1.4 inner shielding layer; 1.5 outer winding layer; 2 skeleton unit; 2.1 annular winding layer; 2.2 connecting unit; 2.3 supporting unit; 2.4 slot; 3 tensile rope; 4 anti-bending unit; 4.1 plug-in plate; 4.2 supporting plate; 4.3 convex plate; 5 cable core; 5.1 conductor; 5.2 insulating layer; 5.3 sub-item shielding layer; 5.4 inner winding layer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model provides Figure 1-5The polyethylene insulated multi-layer shielded computer cable shown in the figure comprises, from outside to inside, an outer sheath 1.1, an outer shielding layer 1.2, an inner protective oxygen-isolating layer 1.3, an inner shielding layer 1.4 and an outer sheath 1.5, wherein a skeleton unit 2 and four cable cores 5 are arranged in the outer sheath 1.5, wherein the cable core 5 comprises two core wires twisted to form a twisted pair group, a sub-item shielding layer 5.3 wrapping the twisted pair group and an inner sheath 5.4 wrapping the sub-item shielding layer 5.3, wherein the core wire comprises a conductor 5.1 and an insulating layer 5.2 wrapping the conductor 5.1, wherein the insulating layer 5.2 is made of polyethylene material, and the cross section of the skeleton unit 2 is cross-shaped The skeleton unit 2 includes a circular ring-shaped cladding 2.1 and four supporting units 2.3, each supporting unit 2.3 is connected to the circular ring-shaped cladding 2.1 with a connecting unit 2.2, the circular ring-shaped cladding 2.1 has a tensile rope 3, and there is a cable core between two adjacent supporting units. The skeleton unit 2 has four slots 2.4 extending along the length direction of the cable, and an anti-bending unit 4 is installed in the slot 2.4. The anti-bending unit 4 includes an insert plate 4.1 that can be inserted into the slot 2.4 and a support plate 4.2 fixedly connected to the insert plate 4.1, and the outer surface of the support plate 4.2 has a plurality of convex plates 4.3.

[0031] The outer sheath 1.1 is made of PVC material; the outer shielding layer 1.2 is a copper tape wrapped shielding layer; the inner shielding layer 1.4 is a copper wire braided shielding layer; the sub-item shielding layer 5.3 is a copper wire braided shielding layer; the plug plate 4.1, the support plate 4.2, and the convex plate 4.3 are extruded integrally from PVC material; the cross-section of the connecting unit 2.2 is rectangular, and the cross-section of the supporting unit 2.3 is trapezoidal, and the annular sheath 2.1, the connecting unit 2.2, and the supporting unit 2.3 all extend along the length direction of the cable; the skeleton unit 2 is made of silicone rubber material or nylon material.

[0032] Working principle: The computer cable of the present application has an inner and outer shielding layer and a sub-shielding layer, so that the multi-layer shielding layer structure provides a good shielding effect for the cable, improves the signal transmission performance of the cable, and is suitable for special environments or application scenarios with high requirements for signal transmission. The inner protective oxygen-isolating layer can effectively isolate the internal structure of the cable from the external environment, prevent oxygen from entering the cable, thereby reducing or preventing the oxidation reaction of the conductor. The skeleton unit serves as a supporting structure to fix the position of the cable core and provide certain tensile and bending resistance. The slot is used to install the anti-bending unit, and the anti-bending unit is used to enhance the bending resistance of the cable, thereby reducing the pressure on the cable core. Through the cooperation of the skeleton unit and the anti-bending unit, the bending degree of the cable is limited, thereby protecting the cable, avoiding excessive bending damage, and extending the service life of the cable. For application scenarios that require frequent movement, bending or harsh environmental conditions, it can provide better protection for the cable. The tensile rope is located in the annular sheath, thereby enhancing the tensile strength of the cable.

[0033] During the specific processing, the four cable cores are first respectively accommodated between the supporting units adjacent to each other of the skeleton unit, and then the four anti-bending units are respectively inserted into the four slots, and then the outer wrapping layer is made to wrap the skeleton unit, the anti-bending unit and the cable core, and then the inner shielding layer, the inner protective oxygen-isolating layer, the outer shielding layer and the outer sheath are made in sequence.

[0034] Although the present invention has been illustrated and described with respect to preferred embodiments, those skilled in the art will appreciate that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A polyethylene insulated multi-layer shielded computer cable, characterized in that: From the outside to the inside, it includes an outer sheath, an outer shielding layer, an inner protective oxygen-isolating layer, an inner shielding layer and an outer winding layer. A skeleton unit and four cable cores are arranged in the outer winding layer. The cable core includes two core wires twisted into a twisted pair group, a sub-shielding layer wrapping the twisted pair group and an inner winding layer wrapping the sub-shielding layer. The core wire includes a conductor and an insulating layer wrapping the conductor. The insulating layer is made of polyethylene material. The cross-section of the skeleton unit is cross-shaped. The skeleton unit includes a circular sheath and four supporting units. A connecting unit is connected to each supporting unit and the circular sheath. A tensile rope is provided in the circular sheath. A cable core is provided between two adjacent supporting units. The skeleton unit has four slots extending along the length direction of the cable. Anti-bending units are installed in the slots. The anti-bending unit includes a plug plate that can be inserted into the slot and a support plate fixedly connected to the plug plate. The outer surface of the support plate has multiple convex plates.

2. The polyethylene insulated multi-layer shielded computer cable according to claim 1, characterized in that: The outer sheath is made of PVC material.

3. The polyethylene insulated multi-layer shielded computer cable according to claim 1, characterized in that: The outer shielding layer is a copper tape wrapped shielding layer.

4. The polyethylene insulated multi-layer shielded computer cable according to claim 1, characterized in that: The inner shielding layer is a copper wire braided shielding layer.

5. The polyethylene insulated multi-layer shielded computer cable according to claim 1, characterized in that: The sub-item shielding layer is a copper wire braided shielding layer.

6. The polyethylene insulated multi-layer shielded computer cable according to claim 1, characterized in that: The inserting plate, the supporting plate and the convex plate are integrally extruded and formed by PVC material.

7. The polyethylene insulated multi-layer shielded computer cable according to claim 1, characterized in that: The cross section of the connecting unit is rectangular, the cross section of the supporting unit is trapezoidal, and the annular cladding, the connecting unit and the supporting unit all extend along the length direction of the cable.

8. The polyethylene insulated multi-layer shielded computer cable according to claim 1, characterized in that: The skeleton unit is made of silicone rubber material or nylon material.

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