Liquid-cooled charging cable and cooling system for fast charging of electric vehicles
A liquid cooling, fast charging technology, applied in electric vehicle charging technology, electric vehicles, bendable cables, etc., can solve the problem of difficult to deal with extreme high temperature conditions of fast charging, small heat dissipation contact area and cooling pipe length, charging cable heat Can not quickly export and other problems, to achieve good cooling effect, improve cooling effect, good bendability effect
Active Publication Date: 2020-08-28
SHANDONG UNIV
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Problems solved by technology
However, the large charging current required by the fast charging technology will inevitably cause a substantial increase in the heat generated by the charging cable. If the heat is not quickly dissipated, the temperature of the charging cable may be too high, which will lead to the melting of the cable core material and The failure of insulating materials may even lead to safety accidents
At the same time, with the improvement of charging speed and the increase of the number of electric vehicles, the frequency of use of charging piles is also increasing, and the charging cables that are used repeatedly at high frequency are prone to more serious heating problems
[0004] On January 9, 2018, the Patent Office of the State Intellectual Property Office of the People's Republic of China published a patent with the authorized announcement number CN206864235U and the name "a charging pile cable"; this technology fixes and supports each cable core through a hollow cylindrical protective frame , improving the bending resistance of the charging cable; however, the charging cable adopts a natural cooling heat dissipation method, and when the charging current is large, the heat of the charging cable cannot be quickly dissipated, and it is difficult to apply to fast charging and high-frequency electric vehicle charging piles
On February 6, 2018, the Patent Office of the State Intellectual Property Office of the People's Republic of China published a patent with the authorized announcement number CN206976044U and the title "A Coolable Electric Vehicle DC Charging Pile Cable"; The liquid-cooled straight pipe arranged in the cable core improves the heat dissipation performance of the charging cable; however, the heat dissipation contact area and the length of the cooling pipe are small, and the heat dissipation capacity is limited, making it difficult to cope with the extreme high temperature conditions that may occur during fast charging and high-frequency use
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[0050] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.
[0051] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
[0052]It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
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The invention provides a liquid cooling charging cable applied to quick charging of an electric vehicle and a cooling system. The liquid cooling charging cable is arranged between a charging gun and acharging pile electronic control unit. The liquid cooling charging cable comprises a plurality of power cable cores distributed in the same direction, a signal control cable core and a signal transmission cable core, a water return pipe and a water inlet pipe are arranged in the distribution direction, the water inlet pipe is of a spiral structure, the cable cores can be contained in the spiral structure, a plurality of retainers for supporting the cable cores and the water pipe are arranged in the distribution direction of the cable, protective layers are arranged on the outer sides of the retainers, the portions between elements in the protective layers are filled with heat conduction materials, and the cooling effect of the charging cable is greatly improved.
Description
technical field [0001] The disclosure belongs to the technical field of new energy vehicles, and in particular relates to a liquid-cooled charging cable and a cooling system applied to fast charging of electric vehicles. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Compared with traditional fuel vehicles, electric vehicles have many advantages such as zero emission, high energy efficiency, low vibration and noise, and simple structure. In recent years, they have achieved rapid development and become more and more widely used. However, charging anxiety caused by slow charging speed and long charging time is one of the main bottlenecks currently restricting the further promotion and popularization of electric vehicles. The key to solving users' charging anxiety is to continuously increase the charging speed and charging power, and intro...
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IPC IPC(8): H01B7/00H01B7/04H01B7/24H01B7/42B60L53/302
CPCB60L53/302H01B7/0045H01B7/041H01B7/24H01B7/42H01B7/423H01B7/425H01B7/428Y02T10/70Y02T10/7072Y02T90/12
Inventor 王亚楠李华练晨厉青峰王正坤何鑫
Owner SHANDONG UNIV