Integrated high-voltage charging connecting line

Abstract

The utility model relates to an integrated high-voltage charging connecting line, which comprises a cooling pipe, an insulating layer, a shielding layer and an outer sheath which are sequentially arranged from inside to outside, a gap is reserved between the outer wall of the cooling pipe and the insulating layer, and the gap between the cooling pipe and the insulating layer is divided into a first cavity and a second cavity which are isolated by an insulating part. A power supply positive electrode is arranged in the cavity I, and a power supply negative electrode is arranged in the cavity II; wherein the interior of the cooling pipe is divided into a plurality of cooling channels through partition plates, and the plurality of cooling channels are used for allowing an air cooling medium and / or a liquid cooling medium to pass through. According to the integrated high-voltage charging connecting line of the utility model, the heat of the cable is reduced through the cooling of various media, and the insulation is realized through the insulation paste between the conductors, so that the effect of sharing one insulation layer is realized, and the outer diameter size of the cable is greatly reduced; the cable has the advantages of being multifunctional, large in current, portable and easy to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric wire and cable, especially to an integrated high-voltage charging connecting line. BACKGROUND

[0002] High-voltage cable is a wire material for transmitting high-voltage current and is an important component of a power supply system. High-voltage cable is usually composed of several or several groups of wires twisted into a rope-like structure, with at least two wires in each group, insulated from each other, and often twisted around a central wire. The entire outside is covered with a highly insulating cover. It is usually erected in the air or installed underground or underwater for telecommunications or power transmission.

[0003] Currently, conventional single-core or multi-core high-voltage cables on the market, especially in situations requiring high current, often require a larger cross-section to reduce cable heating and ensure normal use of the cable. However, this often leads to an increase in cable weight and an increase in cable diameter, which in turn increases the bending radius, making the cable difficult to install and increasing procurement costs. However, a smaller specification cannot withstand the heat generated by a large current, which in turn accelerates aging and affects cable life. This paradox is hindering the design and development of cables, so conventional cables will gradually be unable to meet market demand. SUMMARY

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the limitations of the existing technology in balancing the diameter of the cable and the current that the cable can withstand.

[0005] To solve the above technical problems, the utility model provides an integrated high-voltage charging connecting line, comprising: a cooling pipe, an insulating layer, a shielding layer and an outer sheath arranged in order from the inside out, a gap is left between the outer wall of the cooling pipe and the insulating layer, the gap between the cooling pipe and the insulating layer is divided into isolated cavity one and cavity two by an insulating piece, a positive electrode of a power supply is arranged in the cavity one, and a negative electrode of the power supply is arranged in the cavity two; wherein the cooling pipe is divided into a plurality of cooling channels by a partition plate, and the plurality of cooling channels are used for passing through gas cooling medium and / or liquid cooling medium. The integrated high-voltage charging connecting line of the utility model realizes the characteristics of multifunction, large current, lightness and easy installation of the cable.

[0006] In an embodiment of the utility model, the cooling pipe is provided with a partition plate one and a partition plate two, and the partition plate one and the partition plate two are arranged in a cross shape.

[0007] In an embodiment of the utility model, the cooling pipe is a circular pipe, and the partition plate one and the partition plate two are arranged along the radial direction of the cooling pipe, and the partition plate one and the partition plate two are arranged in a perpendicular cross shape.

[0008] In one embodiment of the utility model, the partition plate one and partition plate two divide cooling pipe into four cooling channels, the cooling channel on one diagonal line in cooling pipe is gas cooling circulation channel, and the cooling channel on another diagonal line in cooling pipe is liquid cooling circulation channel.

[0009] In one embodiment of the utility model, the cooling in liquid cooling circulation channel adopts oil cooling.

[0010] In one embodiment of the utility model, the gap between cooling pipe and insulating layer is filled with two pieces of resistance filling paste, and the two pieces of resistance filling paste separate cavity one and cavity two.

[0011] In one embodiment of the utility model, the two pieces of resistance filling paste are located at the two ends of the same diameter direction of the cooling pipe.

[0012] In one embodiment of the utility model, the diameter where the two pieces of resistance filling paste are located coincides with the diameter where the partition plate one or the partition plate two is located.

[0013] In one embodiment of the utility model, the material of the cooling pipe is cross-linked polyethylene, polyurethane or fluororubber.

[0014] In one embodiment of the utility model, the material of the conductor of the positive electrode and the negative electrode of the power supply is aluminum.

[0015] The integrated high-voltage charging connecting line of the utility model has the following beneficial effects compared with the prior art:

[0016] 1. The conductor adopts an aluminum conductor to replace a conventional copper conductor, reduces the weight of the cable, reduces the cost of the cable, and the heat generated by the conductor can be timely taken away through the pipeline.

[0017] 2. The positive and negative power supply conductors are wound on the cooling pipe at the same time, which realizes direct contact of the conductors and the pipeline and realizes the effect of sharing one cooling pipe.

[0018] 3. The cooling pipeline is increased, and the cooling pipeline is designed into a four-hole double-pass mode, which can be suitable for single or combined use of various cooling media and improve the cooling effect.

[0019] 4. The positive and negative power supply conductors share one layer of insulating layer, and the conductors are filled with high-insulation resistance filling paste, so that the conventional "two-core wire" becomes a "one-core wire", and the outer diameter size of the cable is reduced.

[0020] 5. The insulation adopts high-purity and high-temperature-resistant rubber material to improve the electrical safety performance of the cable and also increases the heat resistance of the cable; the soft rubber also increases the softness of the cable, facilitating the bending and installation of the cable.

[0021] 6. The shielding is woven by metal wires to realize the protection of the cable interior and less influence of external magnetic field.

[0022] 7. The sheath is made of high-flexibility halogen-free flame-retardant elastic material which is resistant to high and low temperature and corrosion, so that the cable can be used in more fields.

[0023] The integrated high-voltage charging connecting line has the advantages that the heat of the cable is reduced through the cooling of multiple media, and the insulation between the conductors is realized through the isolation of the insulation glue, so that the effect of sharing one insulation layer is realized, and the outer diameter size of the cable is greatly reduced. The design of the combination realizes the characteristics of multifunction, large current, lightness and easy installation of the cable. The cable has great potential in the application of energy storage intelligent charging, new energy vehicle battery connecting line, photovoltaic and wind power station and electric airplane charging. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to make the content of the utility model more easily and clearly understood, the utility model will be further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, wherein

[0025] Figure 1 The sectional view of the integrated high-voltage charging connecting line in the preferred embodiment of the utility model is shown.

[0026] The description of the drawing signs is as follows: 1. resistance filling paste; 2. air cooling circulation channel; 3. positive electrode of power supply; 4. liquid cooling circulation channel; 5. outer sheath; 6. negative electrode of power supply; 7. insulation layer; 8. shielding layer; 10. cooling pipe; 101. cavity one; 102. cavity two; 103. partition plate one; 104. partition plate two. DETAILED DESCRIPTION

[0027] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiments are not as the limitation of the utility model.

[0028] Referring to Figure 1 The integrated high-voltage charging connecting line of the utility model, comprising: cooling pipe 10, insulation layer 7, shielding layer 8 and outer sheath 5 arranged in turn from inside to outside, there is a gap between the outer wall of cooling pipe 10 and insulation layer 7, the gap between cooling pipe 10 and insulation layer 7 is divided into isolated cavity one 101 and cavity two 102 by insulation piece, positive electrode of power supply 3 is arranged in cavity one 101, and negative electrode of power supply 6 is arranged in cavity two 102; wherein, the cooling pipe 10 is divided into a plurality of cooling channels by partition plate, and the plurality of cooling channels are used for passing through air cooling medium and / or liquid cooling medium.

[0029] Specifically, the cooling pipe 10 is provided with a partition plate one 103 and a partition plate two 104, the partition plate one 103 and the partition plate two 104 are cross arranged, and the partition plate one 103 and the partition plate two 104 are integrally formed with the cooling pipe 10 as a whole. The cooling pipe 10 is a circular pipe, and the partition plate one 103 and the partition plate two 104 are arranged along the radial direction of the cooling pipe 10, and the partition plate one 103 and the partition plate two 104 are vertically crossed. The partition plate one 103 and the partition plate two 104 divide the cooling pipe 10 into four cooling channels, the cooling channel located on one diagonal line in the cooling pipe 10 is a gas cooling circulation channel 2, and the cooling channel located on the other diagonal line in the cooling pipe 10 is a liquid cooling circulation channel 4. The cooling in the liquid cooling circulation channel 106 adopts oil cooling. Through the above structure, a four-hole double-channel air cooling / liquid cooling integrated high-voltage charging connecting line is formed. The cooling pipe 10 of the cable adopts a four-hole double-channel cooling circulation system, and can be combined with various cooling media. For example, gas, water, oil, freon, etc. Different cooling combinations can be matched with cooling pipes of different materials, such as cross-linked polyethylene, polyurethane or fluororubber, etc. According to different cable use requirements and occasions, appropriate combination can achieve the highest cost-effective cooling effect.

[0030] The gap between the cooling pipe 10 and the insulation layer 7 is filled with two blocks of resistance filling paste 1, which separates the cavity one 101 and the cavity two 102. The two blocks of resistance filling paste 1 are located at the two ends of the same diameter direction of the cooling pipe 10. The diameter where the two blocks of resistance filling paste 1 are located coincides with the diameter where the partition plate one 103 or the partition plate two 104 is located. The resistance filling paste 1 is a high insulation filling paste, which can well isolate the conductor and will not cause breakdown phenomenon.

[0031] The conductor material of the positive electrode 3 and the negative electrode 6 is aluminum. The conductor adopts aluminum conductor to replace the conventional copper conductor, which reduces the weight of the cable by nearly 1 / 3, and the price of aluminum is more economical and cheaper than copper, which also reduces the design cost of the cable. Moreover, the conductor adopts a spiral winding production process, so that the conductor is tightly attached to the outside of the cooling pipe 10, thereby increasing the contact area of the conductor and the cooling pipe 10, and better taking away the heat generated by the cable.

[0032] The insulation layer 7 of the cable is made of high-purity rubber material and is extruded on the surface of the conductor. The softness of the rubber can increase the flexibility of the cable, which is better for bending the cable. Moreover, the rubber has a high temperature resistance of 200℃, which can withstand the heat generated by the cable.

[0033] The combination of the conductor, the high-insulation filling paste, the rubber insulation and the cooling pipe realizes the combination of the originally two independent positive and negative power supply lines, that is, the effective reduction of the cable heat and the sharing of the insulation layer, and the outer diameter of the cable is reduced by only 40%.

[0034] The shielding layer 8 of the cable is in the form of wire braiding to realize the protection of the inside of the cable and the less influence of the external magnetic field.

[0035] The outer sheath 5 of the cable is made of a high-flexibility halogen-free flame-retardant, high and low temperature resistant and corrosion resistant elastomer material, which further ensures the softness of the cable and makes the cable applicable to various severe environments.

[0036] Obviously, the above embodiments are only examples for clearly illustrating, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An integrated high voltage charging cord, characterized in that, The application relates to a cooling device for a high-voltage power supply, which comprises a cooling pipe, an insulation layer, a shielding layer and an outer sheath arranged in sequence from inside to outside, a gap is left between the outer wall of the cooling pipe and the insulation layer, the gap between the cooling pipe and the insulation layer is divided into isolated cavity I and cavity II by an insulation piece, a power supply positive pole is arranged in the cavity I, and a power supply negative pole is arranged in the cavity II. The cooling pipe is divided into a plurality of cooling channels by a partition plate, and the plurality of cooling channels are used for passing through gas cooling medium and / or liquid cooling medium. The cooling pipe is provided with a partition plate I and a partition plate II, and the partition plate I and the partition plate II are arranged in a cross mode.

2. The integrated high voltage charging cord of claim 1, wherein: The cooling pipe is a circular pipe, and the partition plate I and the partition plate II are arranged along the radial direction of the cooling pipe and are arranged in a vertical cross mode.

3. The integrated high voltage charging cord of claim 2, wherein: The partition plate I and the partition plate II divide the cooling pipe into four cooling channels, the cooling channels located on one diagonal line in the cooling pipe are gas cooling circulation channels, and the cooling channels located on the other diagonal line in the cooling pipe are liquid cooling circulation channels.

4. The integrated high voltage charging cord of claim 3, wherein: The cooling in the liquid cooling circulation channels adopts oil cooling.

5. The integrated high voltage charging cord of claim 4, wherein: The gap between the cooling pipe and the insulation layer is filled with two pieces of resistance filling paste, and the two pieces of resistance filling paste separate the cavity I and the cavity II.

6. The integrated high voltage charging cord of claim 3, wherein: The two pieces of resistance filling paste are located at two ends of the same diameter direction of the cooling pipe.

7. The integrated high voltage charging cord of claim 6, wherein: The diameter of the two pieces of resistance filling paste coincides with the diameter of the partition plate I or the partition plate II.

8. The integrated high voltage charging cord of claim 7, wherein: The material of the cooling pipe is cross-linked polyethylene, polyurethane or fluorine rubber.

9. The integrated high voltage charging cord of claim 1, wherein: The material of the conductors of the power supply positive pole and the power supply negative pole is aluminum.

10. The integrated high voltage charging cord of claim 1, wherein: ​

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