High-temperature-resistant power cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a high-temperature-resistant power cable, which comprises a conductor and a braid layer on the outer side of the conductor, an inner jellyfish belt is arranged on the outer side of the woven layer, protruding heat conduction blocks are arranged on the outer side of the inner jellyfish belt in a segmented mode, heat in a high-temperature area is transmitted to an area with little heat through guide holes formed in the inner jellyfish belt, and a heat conduction cavity for accelerating heat emission is formed between every two adjacent heat conduction blocks. The inner jellyfish belt is used for isolating internal heat and external heat and preventing the internal heat and the external heat from being directly intersected in a high-temperature area, a heat collecting belt is arranged on the inner side of the inner jellyfish belt, and internal heat is transferred to a heat conducting cavity through a transverse cavity formed in the inner side to promote emission. According to the utility model, heat in a high-temperature area can be dispersed to a low-temperature area, heat emission is promoted, high-temperature resistance is improved, heat generated in the cable can be prevented from directly intersecting with heat in an external high-temperature area, the effect of protecting the internal structure of the cable is achieved, and heat conduction is promoted.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and particularly relates to a high-temperature resistant power cable. Background Art

[0002] A high-temperature resistant power cable is a cable that can normally transmit signals or electric energy in a high-temperature environment. It can usually work stably at a temperature of 180°C or above, and is widely used in fields such as metallurgy, chemical industry, aerospace, as well as renewable energy power generation systems such as solar energy and wind energy. It can withstand extreme high-temperature conditions to ensure the stability and safety of power transmission;

[0003] Currently, it is found in the actual application of existing high-temperature resistant power cables that due to the influence of the laying environment, some areas are severely heated while some areas are less heated. This leads to accelerated aging of the insulating material in some areas, and at the same time reduces the high-temperature resistance performance, which is not conducive to the normal use of the internal cable core;

[0004] To solve the above problems, a high-temperature resistant power cable is proposed in this application. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-temperature resistant power cable, which solves the problems raised in the above background art.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a high-temperature resistant power cable, including: a conductor and a braided layer outside it; an inner water tape is arranged outside the braided layer, and convex heat conduction blocks are arranged in segments outside the inner water tape. Heat in the high-temperature area is transferred to the area with less heat through a guide hole opened inside, and a heat conduction cavity for accelerating the external discharge of heat is formed between adjacent heat conduction blocks; the inner water tape is used to isolate the internal and external heat to prevent direct intersection in the high-temperature area, and a heat collecting belt is arranged inside the inner water tape, and the heat inside is transferred to the heat conduction cavity through a transverse cavity opened inside to promote discharge.

[0008] Further, an outer water tape is arranged outside the inner water tape, and the laying of the inner water tape and the outer water tape is automatically positioned through a positioning protrusion inside it to dock with the heat conduction cavity.

[0009] Further, the inner water tape and the outer water tape are symmetrically distributed up and down. After being laid outside the braided layer through an external winding mechanism, an extrusion operation is carried out together, and finally an insulating layer is formed in the outermost area.

[0010] Further, a heat conduction rod is arranged inside the positioning protrusion and is located inside the heat conduction cavity to accelerate the absorption of internal heat to promote heat conduction and discharge.

[0011] Furthermore, a transfer portion is also provided on the inner side of the inner jellyfish belt, which is aligned with the heat conduction cavity for docking the heat collection belt.

[0012] Furthermore, the outer jellyfish belt is also used to locate the cutting depth during the repair of the insulation layer rupture, preventing damage to the internal structure.

[0013] Furthermore, the guide holes are also used to make the insulating materials in different areas of the cable receive heat evenly, so as to disperse the heat in the high-temperature area and reduce the failure rate.

[0014] The utility model has the following beneficial effects:

[0015] In the utility model, the transverse opening of the guide holes guides the heat to conduct to both sides until the heat is collected in the heat conduction cavity at the position with lower heat, and the heat is accelerated to be discharged outwards. Compared with the existing cables, the outer insulating materials can receive heat evenly, and the heat is dispersed to promote the discharge efficiency, so as to improve the service life of the cable;

[0016] In the utility model, through the cooperation of the heat collection belt and the transverse cavity, the internal heat can be transferred to the heat conduction cavity and absorbed by the heat conduction rods, promoting the efficiency of internal heat diffusion, so as to avoid the intersection of the internal accumulated heat and the external heat, ensuring the stability of the cable structure and improving the heat resistance performance.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the partial structure of the cable cross-section of the utility model;

[0021] Figure 3 It is a schematic diagram of the partial internal structure of the cable of the utility model;

[0022] Figure 4 It is a schematic diagram of the partial enlarged structure of part A of the utility model;

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] In the figure: 1. conductor; 2. insulation layer; 3. braided layer; 4. inner jellyfish tape; 5. outer jellyfish tape; 6. heat conduction block; 7. guide hole; 8. heat collecting belt; 9. heat conduction cavity; 10. positioning protrusion; 11. heat conduction rod; 12. adapter; 13. horizontal cavity. DETAILED DESCRIPTION

[0025] 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.

[0026] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figures 1-4 As shown, the utility model is a high temperature resistant power cable, comprising: a conductor 1 and a braided layer 3 on its outer side;

[0028] An inner jellyfish belt 4 is provided on the outside of the braided layer 3, and a protruding heat-conducting block 6 is provided on the outer side of the inner jellyfish belt 4 in sections, and the heat from the high-temperature area is transferred to the area with less heat through the guide hole 7 opened inside, and a heat-conducting cavity 9 is formed between adjacent heat-conducting blocks 6 to accelerate the heat discharge;

[0029] The inner jellyfish belt 4 is used to isolate the internal and external heat to prevent them from directly intersecting in the high-temperature area. The inner side of the inner jellyfish belt 4 is provided with a heat collecting belt 8, which transfers the internal heat to the heat conducting cavity 9 through the transverse cavity 13 opened on the inner side to promote discharge;

[0030] The present embodiment provides a high-temperature resistant power cable that is evenly heated. The cooperation between the heat conductive block 6 and the guide hole 7 can disperse the heat from the high-temperature area to the lower temperature area, thereby promoting heat discharge and improving the high-temperature resistance. In addition, the heat conductive cavity 9 can also prevent the heat generated inside the cable from directly intersecting with the heat from the external high-temperature area, thereby protecting the internal structure of the cable and promoting heat extraction.

[0031] Among them, an outer jellyfish belt 5 is provided on the outer side of the inner jellyfish belt 4, and the inner positioning protrusion 10 thereof is connected to the heat conduction cavity 9 so that the laying of the inner jellyfish belt 4 and the outer jellyfish belt 5 can be automatically positioned, which facilitates the laying operation and improves production efficiency.

[0032] Among them, the inner jellyfish belt 4 and the outer jellyfish belt 5 are symmetrically distributed up and down. After being laid on the outer side of the braided layer 3 through an external winding mechanism, they are extruded together, and finally an insulating layer 2 is formed in the outermost area, achieving the effect of manufacturing a functional area inside the cable.

[0033] Among them, a heat conducting rod 11 is provided inside the positioning protrusion 10 and is located inside the heat conducting cavity 9 to accelerate the absorption of internal heat to promote heat conduction and emission, ensuring the heat dissipation performance of the cable under heated conditions.

[0034] Among them, a transfer part 12 is also provided inside the inner jellyfish belt 4 and is aligned with the heat conducting cavity 9 for docking with the heat collecting belt 8.

[0035] Among them, the outer jellyfish belt 5 is also used to position the cutting depth during the repair of the rupture of the insulating layer 2 to prevent damage to the internal structure.

[0036] Among them, the guide holes 7 are also used to make the insulating materials in different areas of the cable receive uniform heat, so as to disperse the heat in the high-temperature area and reduce the failure rate.

[0037] It can be understood that the utility model can disperse the heat in the high-temperature area to the low-temperature area, improve the heat dissipation while improving the high-temperature resistance performance, and can also prevent the heat generated inside the cable from directly intersecting with the heat in the external high-temperature area, achieving the effect of protecting the internal structure of the cable and promoting the export of heat.

[0038] A specific application of the operation process of this embodiment is as follows: When producing a cable, first, the inner jellyfish belt 4 and the outer jellyfish belt 5 are sequentially released through an external winding device, and the positioning protrusion 10 is inserted into the heat conducting cavity 9 between adjacent heat conducting blocks 6, so that the inner jellyfish belt 4 and the outer jellyfish belt 5 are positioned relative to each other. At this time, the inner jellyfish belt 4 and the outer jellyfish belt 5 in the upper and lower areas are coated on the outer side of the braided layer 3 and are extruded together to form an insulating layer 2 on the outside, thereby forming a functional area inside the cable. With the help of the guide holes 7, the heat entering from the outside can be accelerated to conduct horizontally and converge inside the heat conducting cavity 9 in the area with less heat and be discharged outward, so as to avoid excessive heat accumulation in local areas and prevent aging or damage. At the same time, the heat collected inside is collected in the heat conducting cavity 9 through the transfer part 12 by using the transverse cavity 13 and is absorbed by the heat conducting rod 11 to promote emission, so as to prevent the heat generated inside from directly intersecting with the external heat in the high-temperature area, ensuring the stability of the internal structure of the cable and improving the service life.

[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A high temperature resistant power cable, characterized in that: include: A conductor (1) and a braided layer (3) thereon; An inner jellyfish belt (4) is provided on the outer side of the braided layer (3), and protruding heat-conducting blocks (6) are provided on the outer side of the inner jellyfish belt (4) in sections, so that heat from a high-temperature area is transferred to an area with less heat through guide holes (7) provided inside, and a heat-conducting cavity (9) is formed between adjacent heat-conducting blocks (6) to accelerate heat discharge; The inner jellyfish belt (4) is used to isolate the internal and external heat to prevent them from directly intersecting in the high-temperature area. A heat collecting belt (8) is provided on the inner side of the inner jellyfish belt (4) to transfer the internal heat to the heat conducting cavity (9) through a transverse cavity (13) opened on the inner side to promote discharge.

2. A high temperature resistant power cable according to claim 1, characterized in that: An outer jellyfish belt (5) is provided on the outer side of the inner jellyfish belt (4), and the positioning protrusions (10) on the inner side thereof are connected to the heat conduction cavity (9) so that the laying of the inner jellyfish belt (4) and the outer jellyfish belt (5) is automatically positioned.

3. A high temperature resistant power cable according to claim 1, characterized in that: The inner jellyfish tape (4) and the outer jellyfish tape (5) are symmetrically distributed up and down, and are extruded together after being laid on the outside of the braided layer (3) by an external winding mechanism, and finally form an insulating layer (2) in the outermost circle area.

4. A high temperature resistant power cable according to claim 2, characterized in that: A heat conducting rod (11) is provided on the inner side of the positioning protrusion (10), and is located inside the heat conducting cavity (9) and is used to accelerate the absorption of internal heat to promote heat conduction discharge.

5. A high temperature resistant power cable according to claim 1, characterized in that: The inner side of the inner jellyfish belt (4) is also provided with a transition portion (12) which is aligned with the heat conduction cavity (9) and is used for connecting with the heat collecting belt (8).

6. A high temperature resistant power cable according to claim 2, characterized in that: The outer jellyfish tape (5) is also used to locate the cutting depth when repairing a ruptured insulating layer (2) to prevent damage to the internal structure.

7. A high temperature resistant power cable according to claim 1, characterized in that: The guide hole (7) is also used to allow the insulation materials in different areas of the cable to be heated evenly, so as to disperse the heat in the high-temperature area and reduce the failure rate.

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