Implanted cable type optical fiber

Abstract

The utility model discloses an implanted cable type optical fiber, comprising a plurality of optical units and an external extrusion assembly, the external extrusion assembly comprises a sheath layer, a buffer layer, a first armor layer and a cooling layer, the sheath layer is sleeved on the plurality of optical units, the buffer layer is sleeved on the sheath layer, the first armor layer is sleeved on the sheath layer, and the cooling layer is sleeved on the first armor layer. And the cooling layer is arranged between the sheath layer and the buffer layer and is spirally wound on the sheath layer. According to the utility model, the problem that the optical fiber is easy to break or attenuate in the high-temperature extrusion treatment process in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an implanted cable type optical fiber. Background Art

[0002] With the development of smart grids, it has become a trend to transmit both electrical energy and signals. Implanting optical fibers into cables can save laying procedures, reduce the risk of optical fiber breakage, and monitor the cable status through signal transmission.

[0003] For example, the Chinese utility model patent with application number: CN201821413402.4 is named: An insulated core for making an intelligent cable for a distribution network, including an optical fiber sensor unit, a twisted conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer and a metal shielding layer. The optical fiber sensor unit is implanted in the twisted conductor along the length direction of the twisted conductor, the conductor shielding layer wraps the twisted conductor, the insulating layer wraps the conductor shielding layer, the insulating shielding layer wraps the insulating layer, and the metal shielding layer wraps the insulating shielding layer. The insulated core and the intelligent cable for the distribution network provided by this structure can realize intelligent detection of distribution cables, realize management of distribution cables, and improve the reliability of distribution cables. Because the existing optical fiber is easily affected by extrusion and high temperature during cable processing when implanted into the cable, it causes the optical fiber to break or attenuate too much.

[0004] Therefore, there is an urgent need for an implantable cable-type optical fiber to solve the problem in the prior art that the optical fiber is easily broken or attenuated during the high-temperature extrusion process. Utility Model Content

[0005] In view of this, it is necessary to provide an implantable cable-type optical fiber to solve the technical problem in the prior art that the optical fiber is easily broken or attenuated during the high-temperature extrusion process.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model provides an implantable cable-type optical fiber, comprising:

[0007] a plurality of light units; and

[0008] The outer extruded component includes a sheath layer, a buffer layer, a first armor layer and a cooling layer. The sheath layer is sleeved on the plurality of light units, the buffer layer is sleeved on the sheath layer, and the first armor layer is sleeved on the sheath layer. The cooling layer is arranged between the sheath layer and the buffer layer and is spirally wound on the sheath layer.

[0009] Furthermore, the outer extruded component also includes a second armor layer, and the second armor layer is sleeved on the sheath layer and connected to the sheath layer.

[0010] Furthermore, the second armor layer is externally spirally wrapped around the sheath layer.

[0011] Furthermore, the cooling layer is externally spirally wound around the second armor layer.

[0012] Furthermore, the cooling layer includes a high temperature resistant oil pipe, the high temperature resistant oil pipe is filled with cooling oil, and the high temperature resistant oil pipe is tightly wound around the second armor layer to form the cooling layer.

[0013] Furthermore, the buffer layer is woven into the cooling layer.

[0014] Furthermore, the buffer layer is made of high temperature resistant material aramid fiber.

[0015] Furthermore, the first armor layer is spirally wrapped around the buffer layer.

[0016] Furthermore, the number of the light units is four, and the four light units are symmetrically distributed about the center point.

[0017] Furthermore, gaps are formed between the circumferential inner wall of the sheath layer and the four optical units.

[0018] Compared with the prior art, the beneficial effects of the utility model include: multiple optical units are arranged in the innermost layer, and a sheath layer, a buffer layer, a first armor layer and a cooling layer are arranged outside the multiple optical units, the sheath layer is sleeved on the multiple optical units, the buffer layer is sleeved on the sheath layer, and the first armor layer is sleeved on the sheath layer, and the cooling layer is arranged between the sheath layer and the buffer layer, and is spirally wound on the sheath layer. Compared with the prior art, the sheath layer, the cooling layer, the buffer layer and the first armor layer are sequentially sleeved from the inside to the outside, and the multiple optical units are covered by a four-layer structure, wherein the cooling layer, the buffer layer and the first armor layer are used to protect the optical units, so that the extrusion force during the processing is limited to the cooling layer, the buffer layer and the first armor layer, which can protect the optical units from damage by high temperature and external force, and can solve the technical problem in the prior art that the optical fiber is easily broken or attenuated during the high-temperature extrusion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of a cross-sectional structure of an implanted cable-type optical fiber provided in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] Light unit 1;

[0022] External extrusion package component 2;

[0023] Sheath layer 21;

[0024] Buffer layer 22;

[0025] A first armor layer 23;

[0026] Cooling layer 24;

[0027] Second armor layer 25 . DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0029] See also Figure 1 The utility model provides an implanted cable type optical fiber, comprising: a plurality of optical units 1 and an outer extruded component 2, the outer extruded component 2 comprising a sheath layer 21, a buffer layer 22, a first armor layer 23 and a cooling layer 24, the sheath layer 21 is sleeved on the plurality of optical units 1, the buffer layer 22 is sleeved on the sheath layer 21, and the first armor layer 23 is sleeved on the sheath layer 21, the cooling layer 24 is arranged between the sheath layer 21 and the buffer layer 22, and is spirally wound on the sheath layer 21.

[0030] In the present device, a plurality of optical units 1 are arranged in the innermost layer, and a sheath layer 21, a buffer layer 22, a first armor layer 23 and a cooling layer 24 are arranged outside the plurality of optical units 1. The sheath layer 21 is sleeved on the plurality of optical units 1, the buffer layer 22 is sleeved on the sheath layer 21, and the first armor layer 23 is sleeved on the sheath layer 21. The cooling layer 24 is arranged between the sheath layer 21 and the buffer layer 22, and is spirally wound on the sheath layer 21.

[0031] Compared with the prior art, a plurality of optical units 1 are covered with a four-layer structure by sequentially sleeved with a sheath layer 21, a cooling layer 24, a buffer layer 22 and a first armor layer 23 from the inside to the outside, wherein the cooling layer 24, the buffer layer 22 and the first armor layer 23 are used to protect the optical unit 1, so that the extrusion force during the processing is limited to the cooling layer 24, the buffer layer 22 and the first armor layer 23, which can protect the optical unit 1 from being damaged by high temperature and external force, and can solve the technical problem in the prior art that the optical fiber is easily broken or attenuated during the high-temperature extrusion process.

[0032] Furthermore, the optical unit 1 in the present device is an optical fiber line that is common and easy to purchase on the market. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0033] like Figure 1 As shown, the outer extruded component 2 further includes a second armor layer 25 , which is sleeved on the sheath layer 21 and connected to the sheath layer 21 .

[0034] The second armor layer 25 is disposed outside the sheath layer 21 , and the cooling layer 24 and the buffer layer 22 are disposed between the two armor layers, so as to effectively protect the optical unit 1 .

[0035] As an implementation method, Figure 1 As shown, the second armor layer 25 is spirally wrapped around the sheath layer 21 .

[0036] As an implementation method, the cooling layer 24 is externally spirally wound around the second armor layer 25 .

[0037] As another implementation, the cooling layer 24 includes a high temperature resistant oil pipe filled with cooling oil, and the high temperature resistant oil pipe is tightly wound around the second armor layer 25 to form the cooling layer 24 .

[0038] As an implementation method, the buffer layer 22 is woven into the cooling layer 24 .

[0039] As a preferred implementation, the buffer layer 22 is made of high temperature resistant material aramid fiber.

[0040] As an implementation method, the first armor layer 23 is spirally wrapped around the buffer layer 22 .

[0041] As another preferred implementation, there are four light units 1 , and the four light units 1 are symmetrically distributed about a center point.

[0042] As another embodiment, gaps are formed between the circumferential inner wall of the sheath layer 21 and the four optical units 1 .

[0043] Furthermore, the sheath layer 21, the first armor layer 23 and the second armor layer 25 in the present device are all common and easily purchased equipment on the market. They are conventional settings well known to those skilled in the art and will not be described in detail.

[0044] In the specific working process of the utility model, multiple optical units 1 are arranged in the innermost layer, and a sheath layer 21, a buffer layer 22, a first armor layer 23 and a cooling layer 24 are arranged outside the multiple optical units 1, the sheath layer 21 is sleeved on the multiple optical units 1, the buffer layer 22 is sleeved on the sheath layer 21, and the first armor layer 23 is sleeved on the sheath layer 21, and the cooling layer 24 is arranged between the sheath layer 21 and the buffer layer 22, and is spirally wound on the sheath layer 21. Compared with the prior art, the multiple optical units 1 are covered by a four-layer structure by sequentially sleeved the sheath layer 21, the cooling layer 24, the buffer layer 22 and the first armor layer 23 from the inside to the outside, wherein the cooling layer 24, the buffer layer 22 and the first armor layer 23 are used to protect the optical units 1, so that the extrusion force during the processing is limited to the cooling layer 24, the buffer layer 22 and the first armor layer 23, which can protect the optical units 1 from being damaged by high temperature and external force.

[0045] Furthermore, a sheath is extruded outside the optical fiber. The sheath is extruded from a high temperature resistant material, which can isolate the high temperature of the cable during processing and prevent the optical fiber from melting or breaking due to high temperature. A high temperature resistant hose is used, and cooling oil is filled in the middle. During the processing time when the optical fiber is implanted in the cable, it can absorb heat and prevent the heat from being transferred to the inside of the optical fiber. A double-layer armor structure is used outside the sheath, and a buffer layer 22 is added in the middle to limit the extrusion force of the cable during processing to the armor layer, which can protect the optical unit 1 from external damage.

[0046] The above structure can solve the technical problem in the prior art that the optical fiber is easily broken or attenuated during the high-temperature extrusion process.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An implantable cable type optical fiber, characterized in that: include: Multiple light units; as well as The outer extruded component includes a sheath layer, a buffer layer, a first armor layer and a cooling layer. The sheath layer is sleeved on the plurality of light units, the buffer layer is sleeved on the sheath layer, and the first armor layer is sleeved on the sheath layer. The cooling layer is arranged between the sheath layer and the buffer layer and is spirally wound on the sheath layer.

2. The implantable cable type optical fiber according to claim 1, characterized in that: The outer extruded package component also includes a second armor layer, which is sleeved on the sheath layer and connected to the sheath layer.

3. The implantable cable type optical fiber according to claim 2, characterized in that: The second armor layer is spirally wrapped around the sheath layer.

4. The implantable cable type optical fiber according to claim 2, characterized in that: The cooling layer is spirally wound around the second armor layer.

5. The implantable cable type optical fiber according to claim 4, characterized in that: The cooling layer includes a high temperature resistant oil pipe filled with cooling oil, and the high temperature resistant oil pipe is tightly wound around the second armor layer to form the cooling layer.

6. The implantable cable type optical fiber according to claim 4, characterized in that: The buffer layer is woven into the cooling layer.

7. The implantable cable type optical fiber according to claim 6, characterized in that: The buffer layer is made of high temperature resistant material aramid fiber.

8. The implantable cable type optical fiber according to claim 6, characterized in that: The first armor layer is spirally wrapped around the buffer layer.

9. The implantable cable type optical fiber according to claim 1, characterized in that: The number of the light units is four, and the four light units are symmetrically distributed around the center point.

10. The implantable cable type optical fiber according to claim 1, characterized in that: A gap is formed between the circumferential inner wall of the sheath layer and the four optical units.

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