Moisture-proof and leakage-proof computer cable

Abstract

The utility model discloses a moisture-proof and electric leakage-proof computer cable, which relates to the technical field of computer cables. From outside to inside, it is sequentially provided with an outer sheath, a water absorption layer, an outer water-blocking layer, a filling layer, an inner water-blocking layer, an outer insulating layer and a protective layer. A cavity is formed inside the protective layer, and a sleeve is arranged inside the cavity. Four pipe cavities are formed inside the sleeve, and a wire core is arranged in each pipe cavity. A fire-resistant layer is wrapped outside the wire core. The wire core includes a conductor, an inner insulating layer is wrapped outside the conductor, and a shielding layer is wrapped outside the inner insulating layer. The sleeve is in a "field" shape, and the sleeve is integrally provided with the protective layer. A buffer cavity is formed between the sleeve and the cavity, and the buffer cavity is filled with buffer materials, enhancing the compressive resistance and the ability of water-blocking and electric leakage-proof of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of computer cables, in particular to a moisture-proof and leakage-proof computer cable. Background Art

[0002] Computer cables belong to electrical equipment cables. This cable is applicable to electronic computers and automatic instruments and meters with a rated voltage of 500V or less and relatively high anti-interference requirements. According to the usage requirements of different environments and equipment, the cable insulation can adopt materials such as polyethylene, polyvinyl chloride, cross-linked polyethylene, fluoroplastic, and silicone rubber.

[0003] The existing computer cables have poor moisture-proof performance, which is not conducive to normal use. At the same time, their compressive and tensile resistance is poor, and leakage is likely to occur. Therefore, it is necessary to design a moisture-proof and leakage-proof computer cable that enhances the compressive resistance and water-blocking and leakage-proof capabilities of the cable. Content of the Utility Model

[0004] The purpose of the utility model is to provide a moisture-proof and leakage-proof computer cable for the existing technical defects to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: A moisture-proof and leakage-proof computer cable is provided, which is sequentially provided with an outer sheath, a water absorption layer, an outer water-blocking layer, a filling layer, an inner water-blocking layer, an outer insulation layer, and a protective layer from the outside to the inside. A cavity is formed inside the protective layer, a sleeve is arranged inside the cavity, four pipe cavities are formed inside the sleeve, and a wire core is arranged in each pipe cavity. A fire-resistant layer is wrapped outside the wire core.

[0006] The utility model further explains that the wire core includes a conductor, an inner insulation layer is wrapped outside the conductor, and a shielding layer is wrapped outside the inner insulation layer.

[0007] The utility model further explains that the sleeve is in a "field" shape and is integrally provided with the protective layer.

[0008] The utility model further explains that a buffer cavity is formed between the sleeve and the cavity, and buffer materials are filled in the buffer cavity.

[0009] The utility model further explains that the fire-resistant layer material is wound with mica tape, and the winding thickness is 3 - 5mm.

[0010] The utility model further explains that the water absorption layer is wound with a semi-conductive buffer water-blocking tape, and the water-blocking tape is wound with a thickness of 3 - 5mm.

[0011] The present invention further explains that both the outer water-blocking layer and the inner water-blocking layer are extruded from polyethylene with an extrusion thickness of 5 mm. The filling layer is filled with water-blocking material with a radial thickness of 4 mm.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by setting an outer water-blocking layer, an inner water-blocking layer and a filling layer, achieves multiple water-blocking effects against water vapor, reduces the possibility of water vapor penetrating into the wire core, and improves the overall waterproof effect of the cable.

[0013] By setting up protective layers and sleeves, and filling the buffer cavity with buffer material, the overall compressive and tensile strength of the cable is improved.

[0014] By setting fire-resistant layers, outer insulation layers, and inner insulation layers, leakage current is prevented from being caused by the wire core burning through from the inside and spreading. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] In the diagram: 1. Outer sheath; 2. Absorbent layer; 3. Outer water-blocking layer; 4. Filler layer; 5. Inner water-blocking layer; 6. Outer insulation layer; 7. Protective layer; 8. Sleeve; 9. Lumen; 10. Buffer cavity; 11. Core wire; 12. Conductor wire; 13. Inner insulation layer; 14. Shielding layer; 15. Fire-resistant layer. Detailed Implementation

[0018] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 The present invention provides a technical solution: a moisture-proof and leakage-proof computer cable, comprising an outer sheath 1, an absorbent layer 2 inside the outer sheath 1, an outer water-blocking layer 3 inside the absorbent layer 2, a filling layer 4 inside the outer water-blocking layer 3, an inner water-blocking layer 5 inside the filling layer 4, an outer insulation layer 6 inside the inner water-blocking layer 5, and a protective layer 7 inside the outer insulation layer 6.

[0020] A cavity is formed inside the protective layer 7, and a sleeve 8 is arranged inside the cavity. The sleeve 8 is in the shape of a Chinese character 'tian' and is integrally set with the protective layer 7.

[0021] Four lumen 9 are formed inside the sleeve 8, and a wire core 11 is arranged in each lumen 9. A drying material is filled between the lumen 9 and the wire core 11. The drying material includes but is not limited to molecular sieve desiccant, fiber desiccant, etc.

[0022] A buffer cavity 10 is formed between the sleeve 8 and the cavity. The buffer cavity 10 is filled with buffer material to improve the overall compressive performance of the cable.

[0023] The wire core 11 includes a conductor 12. An inner insulating layer 13 is wrapped outside the conductor 12, and a shielding layer 14 is wrapped outside the inner insulating layer 13.

[0024] A fire-resistant layer 15 is wrapped outside the wire core 11. The material of the fire-resistant layer 15 is formed by winding mica tape with a winding thickness of 3 - 5 mm, which is used to prevent the wire core 11 from continuing to burn after being burned through from the inside.

[0025] The outer sheath 1 is composed of polyurethane and has the advantages of good oil resistance, good toughness, wear resistance, cold resistance, water resistance, aging resistance, acid and alkali resistance, weather resistance, ultraviolet resistance, etc., and is suitable for harsh occasions such as oil pollution, acid and alkali, and low-temperature environments.

[0026] The water absorption layer 2 is formed by winding a semi-conductive buffer water-blocking tape with a winding thickness of 3 - 5 mm for the water-blocking tape.

[0027] Both the outer water-blocking layer 3 and the inner water-blocking layer 5 are extruded with polyethylene with an extrusion thickness of 5 mm.

[0028] The filling layer 4 is filled with water-blocking materials, including but not limited to filling water-blocking yarn, water-blocking rope, or winding semi-conductive water-blocking tape or insulating water-blocking tape. The radial thickness of the filling layer 4 is 4 mm.

[0029] The outer insulating layer 6 and the inner insulating layer 13 include but are not limited to materials such as polyvinyl chloride (PVC), polyethylene, cross-linked polyethylene (XLPE), and silicone rubber, etc., and have good insulation performance.

[0030] Both the protective layer 7 and the pipe sleeve are extruded with waterproof rubber, having certain elasticity and hardness, having a good buffering effect, thus improving the compressive capacity of the cable, and at the same time having good waterproof performance, playing a role in supporting, protecting, and waterproofing the internal wire core 11.

[0031] The buffer material includes but is not limited to polyester tape, tin foil tape, spun silk, glass fiber silk, etc., and is used for fixing the position of the wire core 11 and filling the gap.

[0032] The conductor 12 is made of a metal material with good conductivity such as copper or aluminum, and the shielding layer 14 is made of aluminum or copper wire braided together, which can effectively shield electromagnetic interference.

[0033] In this embodiment, the water-absorbing layer 2 is set to initially absorb moisture from externally seeping water vapor. By setting the outer water-blocking layer 3, the inner water-blocking layer 5, and the filling layer 4, multiple water-blocking effects on water vapor are achieved, reducing the possibility of water vapor seeping into the wire core 11 and improving the overall waterproof effect of the cable.

[0034] By setting up a protective layer 7 and a sleeve 8, and filling the buffer cavity 10 with buffer material, the overall compressive and tensile strength of the cable is improved.

[0035] By setting a fire-resistant layer 15, an outer insulation layer 6, and an inner insulation layer 13, leakage current is prevented from being caused by the wire core 11 burning through from the inside and spreading.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", 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 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.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A moisture-proof and leakage-proof computer cable, comprising, from the outside to the inside, an outer sheath (1), a water-absorbing layer (2), an outer water-blocking layer (3), a filling layer (4), an inner water-blocking layer (5), an outer insulation layer (6), and a protective layer (7), characterized in that: A cavity is formed in the protective layer (7), a sleeve (8) is arranged in the cavity, four pipe cavities (9) are formed in the sleeve (8), a wire core (11) is arranged in each pipe cavity (9), and a refractory layer (15) is wrapped outside the wire core (11).

2. The moisture and leakage resistant computer cable of claim 1, wherein: The wire core (11) includes a conductor (12), an inner insulating layer (13) is wrapped outside the conductor (12), and a shielding layer (14) is wrapped outside the inner insulating layer (13).

3. The moisture and electrical leakage resistant computer cable of claim 1, wherein: The sleeve (8) is in a "field" shape, and the sleeve (8) is integrally arranged with the protective layer (7).

4. The moisture and electrical leakage resistant computer cable of claim 3, wherein: A buffer cavity (10) is formed between the sleeve (8) and the cavity, and a buffer material is filled in the buffer cavity (10).

5. The moisture and electrical leakage resistant computer cable of claim 1, wherein: The material of the refractory layer (15) is formed by winding mica tape, and the winding thickness is 3-5 mm.

6. The moisture and electrical leakage resistant computer cable of claim 1, wherein: The water absorption layer (2) is formed by winding a semiconductor buffer water blocking tape, and the water blocking tape is wound with a thickness of 3-5 mm.

7. The moisture and electrical leakage resistant computer cable of claim 1, wherein: The outer water blocking layer (3) and the inner water blocking layer (5) are both extruded with polyethylene, the extrusion thickness is 5 mm, the filling layer (4) is filled with a water blocking material, and the radial thickness of the filling layer (4) is 4 mm.

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