Photoelectric hybrid cable

Abstract

The utility model discloses a photoelectric hybrid cable, which comprises a first protective sleeve, and a cable unit and an optical cable unit which are arranged in the first protective sleeve, the optical cable unit is spirally arranged around the cable unit, and a first gap exists between adjacent spirals formed by the optical cable unit. According to the photoelectric hybrid cable provided by the utility model, the optical cable units are spirally arranged around the cable unit, and the first gaps are reserved between the adjacent spirals; when the cable is bent by external force, the spiral optical cable unit can disperse stress in the length direction of the whole cable through the spiral structure, the first gap between the adjacent spirals enables the optical cable unit to have a moving space when the optical cable unit is bent, the optical fiber is prevented from being excessively extruded or stretched, and thus the stability of the transmission performance of the optical cable unit is ensured.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to an optoelectronic hybrid cable. Background Technology

[0002] Fiber-optic hybrid cables are cables that combine optical fiber and electrical cable, integrating optical fiber and power transmission conductor as a transmission line. They can solve problems related to optical access, equipment power supply, and signal transmission. Fiber-optic hybrid cables are suitable for insulated communication optical cables, transportation communication optical cable projects, plaza optical cable projects, overhead optical cable construction, power optical cable projects, and high-altitude optical cable construction.

[0003] In existing technologies, the optical fiber and electrical conductor in the optoelectronic hybrid cable are subjected to different stresses when bent, which can easily lead to micro-bending or macro-bending loss of the optical fiber, thereby affecting the transmission quality of the optical signal. As a result, existing optoelectronic hybrid cables have the problem of difficulty in ensuring the stability of optical cable transmission when bent. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hybrid optical-electrical cable to solve the problem that the optical fiber and the electrical conductor in the existing hybrid optical-electrical cable are subjected to different stresses when bent, which easily leads to micro-bending or macro-bending loss of the optical fiber, thereby affecting the transmission quality of the optical signal. As a result, the existing hybrid optical-electrical cable has the technical problem of difficulty in ensuring the stability of optical cable transmission when bent.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a hybrid optoelectronic cable, including: a first protective sleeve, and a cable unit and an optical cable unit disposed in the first protective sleeve. The optical cable unit is arranged in a spiral around the cable unit, and there is a first gap between adjacent spirals formed by the optical cable units.

[0007] As a preferred technical solution of this application, the optical cable unit includes a second protective sleeve and an optical fiber disposed in the second protective sleeve.

[0008] As a preferred embodiment of this application, the second protective sleeve includes a spiral armor tube, and the optical fiber is wrapped in the spiral armor tube.

[0009] As a preferred embodiment of this application, the spiral armor tube includes a steel strip arranged in a spiral around the optical fiber, and there is a second gap between adjacent spirals formed by the steel strip.

[0010] As a preferred embodiment of this application, the second protective sleeve further includes a flexible sleeve, and the spiral armor tube is wrapped in the flexible sleeve.

[0011] As a preferred embodiment of this application, the cable unit includes a third protective sleeve and a wire core disposed within the third protective sleeve.

[0012] As a preferred technical solution of this application, the third protective sleeve is made of insulating material.

[0013] As a preferred technical solution of this application, the wire core includes a first wire core used as a positive power supply wire, a second wire core used as a negative power supply wire, and a third wire core used as a signal wire, wherein at least two of the first wire core, the second wire core, and the third wire core are externally wrapped with an insulating sleeve.

[0014] As a preferred technical solution of this application, the first protective sleeve is made of insulating material.

[0015] As a preferred embodiment of this application, the central axis of the first protective sleeve coincides with the central axis of the cable unit.

[0016] The present invention relates to a hybrid optical-electric cable, which arranges optical cable units in a spiral shape around a cable unit and reserves a first gap between adjacent spirals. When the cable is bent by external force, the spiral optical cable unit can disperse the stress along the entire length of the cable through its spiral structure. The first gap between adjacent spirals allows the optical cable unit to move when bent, avoiding excessive compression or stretching of the optical fiber, thereby ensuring the stability of the transmission performance of the optical cable unit.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the optoelectronic hybrid cable according to an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional schematic diagram of the optoelectronic hybrid cable according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the spiral armor tube of the optoelectronic hybrid cable according to an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the optical cable unit of the optoelectronic hybrid cable according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. First protective sleeve; 2. Cable unit; 21. Wire core; 22. Third protective sleeve; 23. Insulating sleeve; 3. Optical cable unit; 31. Optical fiber; 32. Second protective sleeve; 321. Spiral armor tube; 3211. Second gap; 322. Flexible sleeve; 4. First gap. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "resin", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the internal structure of the optoelectronic hybrid cable according to an embodiment of the present invention. Figure 2 This is a cross-sectional schematic diagram of the optoelectronic hybrid cable according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the spiral armor tube 321 of the optoelectronic hybrid cable according to an embodiment of the present invention. Figure 4 This is a cross-sectional view of the optical cable unit 3 in an embodiment of the optoelectronic hybrid cable of the present invention. The present invention provides an optoelectronic hybrid cable, comprising: a first protective sleeve 1, and a cable unit 2 and an optical cable unit 3 disposed within the first protective sleeve 1. The optical cable unit 3 is arranged in a spiral around the cable unit 2, and a first gap 4 exists between adjacent spirals formed by the optical cable unit 3. Preferably, the optical cable unit 3 is arranged in a uniform spiral around the cable unit 2. Optionally, the first protective sleeve 1 is made of an insulating material, which may be a thermoplastic elastomer (TPE), polyvinyl chloride (PVC), polyethylene (PE), or fluorinated ethylene propylene copolymer (FEP).

[0032] It is understandable that in traditional optoelectronic hybrid cables, the optical fiber 31 and the electrical conductor experience different stresses when bent, which can easily lead to micro-bending or macro-bending losses in the optical fiber 31, thus affecting the transmission quality of the optical signal. In this embodiment, the optical cable unit 3 is arranged in a spiral around the cable unit 2, with a first gap 4 reserved between adjacent spirals. When the cable is bent by external force, the spiral-shaped optical cable unit 3 can distribute the stress along the entire length of the cable through its spiral structure. The first gap 4 between adjacent spirals allows the optical cable unit 3 to have room to move during bending, preventing the optical fiber 31 from being excessively compressed or stretched, thereby ensuring the stable transmission performance of the optical cable unit 3.

[0033] In some embodiments, the optical cable unit 3 includes a second protective sleeve 32 arranged in a spiral around the cable unit 2, and an optical fiber 31 disposed in the second protective sleeve 32, the optical fiber 31 being capable of supporting high-speed, high-capacity data transmission.

[0034] Fiber 31 can be a single-core fiber, a multi-core fiber, etc., and this application does not impose any restrictions. Specifically, a single-core fiber refers to an optical fiber with only one core, which can only transmit a single optical signal during use. It is commonly used for long-distance data transmission, such as in LAN, WAN, and CATV. Single-core fibers have the advantages of long signal transmission distance and large bandwidth. A multi-core fiber refers to an optical fiber with multiple cores within the same fiber, each core being relatively independent. It can transmit multiple optical signals simultaneously. Multi-core fibers have a wider range of applications than single-core fibers, and in addition to data transmission, they can also be used in optical sensing, imaging, and other fields.

[0035] In some embodiments, the second protective sleeve 32 includes a spiral armor tube 321, within which the optical fiber 31 is encased. It is understood that the optical fiber 31, encased in the spiral armor tube 321, significantly improves the mechanical strength of the optical cable unit 3 through the rigid structure of the spiral armor tube 321, enabling it to withstand greater external forces without easily being damaged. The optical fiber 31 also better maintains its shape and transmission performance when bent. It should be explained that the term "spiral" in "spiral armor tube 321" directly describes its structural form; the term "armor tube" emphasizes the protective and reinforcing function of this spiral armor tube 321. The spiral armor tube 321 is a tube formed by armor arranged in a spiral shape. Here, "armor" refers to the armor layer that cables need to withstand greater mechanical forces should have; that is, adding a layer of metal protection to the outermost layer of the product to prevent damage to the internal functional layer during transportation and installation.

[0036] In some embodiments, the spiral armor tube 321 includes a steel strip arranged in a spiral shape around the optical fiber 31, with a second gap 3211 between adjacent spirals of the steel strip. It is understood that the second gap 3211 between adjacent spirals of the spiral armor tube 321 provides a buffer space, allowing the spiral armor tube 321 to have more freedom of movement when bent, further reducing stress concentration in the optical fiber 31. Furthermore, the spiral steel strip structure allows stress to be dispersed along the length of the cable when bent, protecting the optical fiber 31 from excessive compression or stretching.

[0037] In some embodiments, the second protective sleeve 32 further includes a flexible sleeve 322, within which the spiral armor tube 321 is wrapped. Optionally, the flexible sleeve 322 can be made of thermoplastic elastomer (TPE), polyvinyl chloride (PVC), polyethylene (PE), or fluorinated ethylene propylene copolymer (FEP). It is understood that wrapping the spiral armor tube 321 with the flexible sleeve 322 is intended to provide better buffering and protection, reducing the stress on the optical fiber 31 when bent, thereby ensuring stable transmission of optical signals. When the cable is bent by external force, the flexible sleeve 322 absorbs some of the stress through its elastic material, while the spiral armor tube 321 distributes the remaining stress along the entire length of the cable through its spiral structure. Under the dual protection of the spiral armor tube 321 and the flexible sleeve 322, the optical fiber 31 is effectively prevented from being directly affected by mechanical stress. It should be explained that the flexible sleeve 322 is called flexible sleeve 322 mainly based on its material properties and functional performance, which means that it has good elasticity and plasticity. Wrapping the flexible sleeve 322 around the rigid structure such as the spiral armor tube 321 can effectively reduce the stress on the optical fiber 31 or other sensitive components when bending.

[0038] In some embodiments, the cable unit 2 includes a third protective sleeve 22 and a wire core 21 disposed within the third protective sleeve 22. Optionally, the third protective sleeve 22 is made of insulating material. Optionally, the material of the third protective sleeve 22 may be thermoplastic elastomer (TPE), polyvinyl chloride (PVC), polyethylene (PE), or fluorinated ethylene propylene copolymer (FEP).

[0039] In some embodiments, the wire core 21 includes a first wire core serving as a positive power supply wire, a second wire core serving as a negative power supply wire, and a third wire core serving as a signal wire. At least two of the first, second, and third wire cores are externally wrapped with an insulating sleeve 23. Optionally, the insulating sleeve 23 may be made of thermoplastic elastomer (TPE), polyvinyl chloride (PVC), polyethylene (PE), or fluorinated ethylene propylene copolymer (FEP). It is understood that by externally wrapping at least two of the first, second, and third wire cores with the insulating sleeve 23, the aim is to prevent electrical short circuits, reduce electromagnetic interference, and ensure the stability of electrical signal and power transmission. Specifically, the insulating sleeve 23 isolates the positive power supply wire, the negative power supply wire, and the signal wire from each other, preventing direct contact between them and avoiding electrical short circuits.

[0040] In some embodiments, the central axis of the first protective sleeve 1 coincides with the central axis of the cable unit 2. Furthermore, the central axis of the optoelectronic hybrid cable of this application coincides with the central axis of the cable unit 2. It is understood that the coincidence of the central axis of the first protective sleeve 1 with the central axis of the cable unit 2, this symmetrical design, makes the cable more evenly stressed when bent, reducing stress concentration on the optical cable unit 3 and the cable unit 2.

[0041] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. An opto-electric hybrid cable, characterized by, The application relates to a cable, comprising: a first protective sleeve, and a cable unit and an optical cable unit arranged in the first protective sleeve, the optical cable unit being arranged in a spiral around the cable unit, and first gaps being present between adjacent spirals formed by the optical cable unit.

2. The hybrid fiber-optic cable of claim 1, wherein, The optical cable unit comprises a second protective sleeve, and optical fibers arranged in the second protective sleeve.

3. An optical-electrical hybrid cable according to claim 2, wherein, The second protective sleeve comprises a spiral armor, and the optical fibers are wrapped in the spiral armor.

4. An electro-optical hybrid cable according to claim 3, wherein, The spiral armor comprises steel belts arranged in a spiral around the optical fibers, and second gaps being present between adjacent spirals formed by the steel belts.

5. An optical-electrical hybrid cable according to claim 3, wherein, The second protective sleeve further comprises a flexible sleeve, and the spiral armor is wrapped in the flexible sleeve.

6. The hybrid fiber / copper cable of claim 1 wherein, The cable unit comprises a third protective sleeve, and a core arranged in the third protective sleeve.

7. An electro-optical hybrid cable according to claim 6, wherein, The third protective sleeve is made of insulating material.

8. An electro-optical hybrid cable according to claim 6, wherein, The core comprises a first core serving as a positive electrode wire of a power supply, a second core serving as a negative electrode wire of the power supply, and a third core serving as a signal wire, and at least two of the first core, the second core and the third core are wrapped with an insulating sleeve.

9. The hybrid fiber / copper cable of claim 1 wherein, The first protective sleeve is made of insulating material.

10. The hybrid fiber / copper cable of claim 1 wherein, A central axis of the first protective sleeve coincides with a central axis of the cable unit.

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