Compact liquid-cooled charging cable for civil airports

Abstract

The utility model relates to cable structure technical field discloses compact liquid cooling charging cable for civil airport, including signal line core, control line core, yellow green ground wire, outer sheath and two main line cores, and main line core, signal line core, control line core and yellow green ground wire all are located in the outer sheath, and yellow green ground wire is located the center of outer sheath, and signal line core and control line core are twisted around yellow green ground wire, and the outside of signal line core and control line core has a layer of sheath, and the outside of a layer of sheath has two layers of sheath, and the gap between a layer of sheath and two layers of sheath forms cooling cavity, and cooling cavity is filled with coolant, and two main line cores are arranged between two layers of sheath and outer sheath. Through the utility model, the problem that the existing cable structure is complex, the outer diameter is large, and the weight is also heavy, and is inconvenient for actual use can be solved.

Description

Technical Field

[0001] This utility model relates to the field of cable structure technology, specifically to a compact liquid-cooled charging cable for civil airports. Background Technology

[0002] Airport parking areas are typically equipped with dedicated ground power supply systems. Once an aircraft is parked, ground support personnel connect the power cables of the power supply system to the aircraft's interface, utilizing the airport's power grid to supply power to the parked aircraft. This ground power supply method allows aircraft to operate without burning aviation fuel during stopovers, reserving fuel for use during flight, and also avoids generating significant fuel combustion noise on the ground.

[0003] Currently, charging cables used in airports are generally designed with a circular cross-section. They include an outer sheath, inside which are independently arranged main conductors, signal conductors, control conductors, yellow-green ground wires, and cooling pipes. The cooling pipes are filled with a cooling medium to cool the cable and ensure its performance. This type of cable has a relatively complex structure, resulting in a large overall outer diameter and heavy weight, which is not convenient for practical use. Utility Model Content

[0004] The present invention aims to provide a compact liquid-cooled charging cable for civil airports to solve the problems of existing cables having complex structures, large outer diameters, and heavy weights, which are inconvenient for practical use.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a compact liquid-cooled charging cable for civil airports, comprising a signal core, a control core, a yellow-green ground wire, an outer sheath, and two main cores. The main cores, signal cores, control cores, and yellow-green ground wire are all located inside the outer sheath, with the yellow-green ground wire located at the center of the outer sheath. The signal cores and control cores are twisted around the yellow-green ground wire. There is a sheath on the outside of the signal cores and control cores, and a second sheath on the outside of the first sheath. A gap exists between the first and second sheaths to form a cooling cavity, which is filled with coolant. The two main cores are located between the second sheath and the outer sheath.

[0006] The principles and advantages of this scheme are:

[0007] 1. The traditional cooling pipe is eliminated. Instead, a cooling chamber is formed by setting a gap between the first and second sheaths to cool the cable. At the same time, the layers are tightly designed, which makes the overall cable structure simpler, with a smaller outer diameter and lighter weight, meeting the requirements of lightweighting and making it more suitable for practical use.

[0008] 2. When the coolant flows in the cooling chamber, it cools the yellow-green ground wire, control wire core, and signal wire core inside the first sheath, while also cooling the two main wire cores outside the second sheath, thereby improving cooling efficiency and ensuring the cooling effect on the cable.

[0009] 2. With this cooling chamber structure, the main conductor and the coolant can have a large contact area, which greatly enhances the cable's heat dissipation capacity.

[0010] 3. The main conductor and the control conductor are isolated by a first layer of sheath and a second layer of sheath, which avoids temperature interference between the conductors, facilitates cooling of each conductor, and ensures effective signal transmission.

[0011] 4. The main conductor structure is relatively robust and stable. It is located on the outer layer of the cable and can protect the internal conductors.

[0012] 5. This type of cable is more compact overall, with a more integrated structure and greater stability.

[0013] Preferably, as an improvement, the two main cores are wound in a double helix around the outer layer of the sheath, with gaps between the double helices forming a spiral channel, which is filled with coolant.

[0014] With the above scheme, the spiral channel also serves as a cooling channel, thus directly cooling the main wire core and achieving a better cooling effect.

[0015] Preferably, as an improvement, the two main cores are tightly fitted to the outer wall of the second sheath, and the two main cores are tightly fitted to the inner wall of the outer sheath.

[0016] The above scheme makes the spiral channel more enclosed, so that when the coolant flows in the spiral channel, it can only move along the spiral direction of the spiral channel, and will not flow in a straight line between adjacent spirals, thus extending the movement path of the coolant and ensuring the cooling effect on the main core.

[0017] Preferably, as an improvement, the second sheath is extruded from the first sheath by vertical extrusion.

[0018] The above scheme allows the second sheath to be wrapped around the first sheath in the form of a sleeve, so that the cooling cavity is well formed and has sufficient cross-sectional area for the flow of coolant, thereby ensuring the cooling effect on the cable.

[0019] Preferably, as an improvement, the outer sheath is extruded over the two main conductors.

[0020] With the above solution, the outer sheath and the two main cores are more tightly bonded, which can ensure the good formation of the spiral channel. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the cable.

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the cable.

[0023] The reference numerals in the accompanying drawings include: 1. Signal wire / control wire; 2. Yellow-green ground wire; 3. Outer sheath; 4. First layer sheath; 5. Second layer sheath; 6. Cooling cavity; 7. Main wire; 8. Spiral channel. Detailed Implementation

[0024] The following detailed description provides further details on specific embodiments, but the embodiments of this utility model are not limited thereto. Unless otherwise specified, the technical means used in the following embodiments are conventional means well known to those skilled in the art; the experimental methods used are all conventional methods; and the materials and reagents used are all commercially available.

[0025] Compact liquid-cooled charging cables for civil airports, such as Figure 1 and Figure 2 As shown, it includes signal core, control core, yellow-green ground wire 2, outer sheath 3 and two main cores 7. The main cores 7, signal core, control core and yellow-green ground wire 2 are all located inside the outer sheath 3.

[0026] The yellow-green ground wire 2 is located at the center of the outer sheath 3. The signal core 1 and control core 1 are twisted around the yellow-green ground wire 2. A sheath 4 surrounds the signal core 1 and control core 1. A second sheath 5 surrounds the first sheath 4, and the second sheath 5 is extruded vertically outside the first sheath 4. A gap exists between the first sheath 4 and the second sheath 5, forming a cooling chamber 6 filled with coolant. Two main cores 7 are positioned between the second sheath 5 and the outer sheath 3. The outer sheath 3 is extruded over the two main cores 7.

[0027] Two main wire cores 7 are wound in a double helix around the outer layer of the second sheath 5, with gaps between the double helices forming a spiral channel 8, which is filled with coolant. The two main wire cores 7 are tightly fitted to the outer wall of the second sheath 5, and the two main wire cores 7 are tightly fitted to the inner wall of the outer sheath 3.

[0028] In practical applications, this embodiment eliminates the traditional cooling pipe and uses a cooling cavity 6 formed by a gap between the first sheath 4 and the second sheath 5 as a cooling channel to cool the cable. The tightly designed layers simplify the overall cable structure, resulting in a smaller outer diameter and lighter weight, meeting lightweight requirements and making it more practical. When the coolant flows within the cooling cavity 6, it cools the yellow-green ground wire 2, control core 1, and signal core 1 within the first sheath 4, while also cooling the two main cores 7 outside the second sheath 5, thus improving cooling efficiency and ensuring effective cable cooling. This cooling cavity 6 structure allows for a larger contact area between the main cores 7 and the coolant, significantly enhancing the cable's heat dissipation capacity. The main cores 7 and control cores 1 are isolated by the first and second sheaths 4 and 5, preventing temperature interference between the cores and facilitating individual cooling while ensuring effective signal transmission. The main cores 7 have a robust and stable structure, and their placement on the outer layer of the cable protects the internal cores. This type of cable is more compact, has a more integrated structure, and is more stable.

[0029] Furthermore, the spiral channel 8 also serves as a cooling channel. When the coolant flows within the spiral channel 8, it moves along the spiral direction of the channel, thus directly cooling the main core 7, resulting in better cooling performance. Moreover, because the cable in this structure is generally circular with the yellow-green ground wire 2 located at the center and filled with coolant, the structure is more integrated and stable, eliminating the need for separate filler.

[0030] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A compact liquid-cooled charging cable for civil airports, comprising a signal core, a control core, a yellow-green ground wire, an outer sheath, and two main cores, wherein the main cores, signal cores, control cores, and yellow-green ground wires are all located within the outer sheath, characterized in that: The yellow-green ground wire is located at the center of the outer sheath. The signal core and control core are twisted around the yellow-green ground wire. There is a sheath on the outside of the signal core and control core. There is a second sheath on the outside of the first sheath. There is a gap between the first and second sheaths to form a cooling cavity. The cooling cavity is filled with coolant. The two main cores are located between the second sheath and the outer sheath.

2. The compact liquid-cooled charging cable for civil airports according to claim 1, characterized in that: Two main cores are wound in a double helix around the outer layer of sheath. There are gaps between the double helices to form a spiral channel, which is filled with coolant.

3. The compact liquid-cooled charging cable for civil airports according to claim 2, characterized in that: The two main wire cores are tightly fitted to the outer wall of the second sheath, and the two main wire cores are tightly fitted to the inner wall of the outer sheath.

4. The compact liquid-cooled charging cable for civil airports according to any one of claims 1-3, characterized in that: The second layer of sheath is extruded vertically outside the first layer of sheath.

5. The compact liquid-cooled charging cable for civil airports according to claim 4, characterized in that: The outer sheath is squeezed around the two main conductor cores.

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