WO2024099343A1 - 一种液冷线缆 - Google Patents

一种液冷线缆 Download PDF

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Publication number
WO2024099343A1
WO2024099343A1 PCT/CN2023/130389 CN2023130389W WO2024099343A1 WO 2024099343 A1 WO2024099343 A1 WO 2024099343A1 CN 2023130389 W CN2023130389 W CN 2023130389W WO 2024099343 A1 WO2024099343 A1 WO 2024099343A1
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WO
WIPO (PCT)
Prior art keywords
conductor layer
rigid conductor
liquid
cavity
rigid
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PCT/CN2023/130389
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English (en)
French (fr)
Inventor
王超
Original Assignee
长春捷翼汽车科技股份有限公司
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Publication of WO2024099343A1 publication Critical patent/WO2024099343A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction

Definitions

  • the present application relates to the field of cable technology, and in particular to a liquid-cooled cable.
  • the conductors of liquid cooling cables are all flexible conductors.
  • the flexible conductors are installed on the vehicle body and in a fixed position, the liquid cooling channel in the liquid cooling cable is easily blocked due to bending, which affects the circulation of the coolant.
  • One object of the present application is to provide a new technical solution for liquid cooling cables.
  • a liquid cooling cable which is arranged in an insulating sheath layer and includes:
  • a first rigid conductor layer wherein the first rigid conductor layer forms a first cavity along the axial direction of the cable, and at least one signal line is arranged in the first cavity;
  • the second rigid conductor layer is arranged to cover the outer periphery of the first rigid conductor layer, and a second cavity is formed between the first rigid conductor layer and the second rigid conductor layer;
  • a cooling liquid flows in at least the second cavity of the first cavity and the second cavity.
  • the first rigid conductor layer and the second rigid conductor layer are used as the positive conductor and the negative conductor respectively.
  • the positive conductor and the negative conductor are arranged in a ring structure, and the electric field is distributed between the positive conductor and the negative conductor.
  • the strong electric field does not affect the signal line in the first cavity, which plays the role of electromagnetic shielding, eliminating the use of the shielding layer and reducing the production cost of the liquid cooling cable.
  • the rigid conductor is not easily deformed. After fixing both ends of the first rigid conductor layer and the second rigid conductor layer to the connector or terminal, the positions of the first rigid conductor layer and the second rigid conductor layer will not change.
  • the cooling liquid can flow directly in the first cavity and the second cavity. The cooling liquid can directly contact the first rigid conductor layer and the second rigid conductor layer, thereby increasing the cooling speed of the cooling liquid and improving the current carrying capacity of the liquid-cooled cable.
  • the structure of the liquid cooling cable can be regular and easy to process.
  • the cross-sectional area of the first rigid conductor layer equal to the cross-sectional area of the second rigid conductor layer, it can be ensured that the maximum current that can be conducted by the first rigid conductor layer and the second rigid conductor layer when used as a positive conductor and a negative conductor is equal, thereby avoiding the maximum current conducted by one of them being less than the maximum current conducted by the other, avoiding the generation of a large amount of heat when one of them conducts current, and avoiding fire caused by overheating of the cable.
  • the inner contour line of the first rigid conductor layer is the same as the outer contour line
  • the inner contour line of the second rigid conductor layer is the same as the outer contour line, so that the structures of the first rigid conductor layer and the second rigid conductor layer are regular and easy to process.
  • the shapes of the first rigid conductor layer and the second rigid conductor layer can also be arbitrarily selected according to the shape and position of the connectors or terminals connected at both ends of the liquid cooling cable.
  • the inner contour line of the first rigid conductor layer is different from the outer contour line
  • the inner contour line of the second rigid conductor layer is different from the outer contour line.
  • the shapes of the first rigid conductor layer and the second rigid conductor layer can be arbitrarily selected according to the shape and position of the connectors or terminals connected at both ends of the liquid cooling cable.
  • the first rigid conductor layer and the second rigid conductor layer can be further separated to avoid contact between the first rigid conductor layer and the second rigid conductor layer due to the liquid cooling cable being too long or the first rigid conductor layer and the second rigid conductor layer being insufficiently rigid.
  • the first rigid conductor layer and the second rigid conductor layer have a corrugated section extending along the axial direction of the cable, which can increase the surface area of the first rigid conductor layer and the second rigid conductor layer.
  • the heat dissipation area of the first rigid conductor layer and the second rigid conductor layer is increased, the cooling speed of the coolant is increased, and the current carrying capacity of the liquid cooling cable is increased.
  • an insulating tube is arranged in the first cavity, and a signal line is arranged in the insulating tube, so as to prevent the signal line from being electrically connected to the first rigid conductor layer, thereby affecting the normal use of the signal line in the liquid cooling cable and avoiding damage to the control system and other equipment connected to the signal line.
  • FIG1 is a schematic structural diagram of a liquid cooling cable according to a first embodiment
  • FIG2 is a schematic structural diagram of a liquid cooling cable according to a second embodiment
  • FIG3 is a schematic structural diagram of a liquid cooling cable according to a third embodiment
  • FIG4 is a schematic structural diagram of a liquid cooling cable according to a fourth embodiment
  • FIG5 is a schematic structural diagram of a liquid cooling cable according to a fifth embodiment.
  • the liquid cooling cable is arranged in an insulating sheath layer 1, and the liquid cooling cable comprises:
  • the first rigid conductor layer 2 forms a first cavity 4 along the axial direction of the cable. At least one signal line 6 is arranged in the first cavity 4;
  • a second rigid conductor layer 3 wherein the second rigid conductor layer 3 is arranged to cover the outer periphery of the first rigid conductor layer 2, and a second cavity 5 is formed between the first rigid conductor layer 2 and the second rigid conductor layer 3;
  • a cooling liquid flows through at least the second cavity 5 of the first cavity 4 and the second cavity 5 .
  • the rigid conductor is not easily deformed. After fixing both ends of the first rigid conductor layer 2 and the second rigid conductor layer 3 to the connector or the terminal, the positions of the first rigid conductor layer 2 and the second rigid conductor layer 3 will not change.
  • the cooling liquid can flow directly in the first cavity 4 and the second cavity 5.
  • the cooling liquid can directly contact the first rigid conductor layer 2 and the second rigid conductor layer 3, thereby increasing the cooling speed of the cooling liquid and improving the current carrying capacity of the liquid cooling cable.
  • the cooling liquid circulating in the second cavity 5 can cool the first rigid conductor layer 2 and the second rigid conductor layer 3 at the same time. Therefore, the liquid-cooled cable can be cooled by circulating the cooling liquid in at least the second cavity 5. The cooling liquid can flow back through the first cavity 4.
  • the first cavity 4 can be arranged with a ground wire 7 as needed.
  • an insulating layer may not be provided between the first rigid conductor layer 2 and the second rigid conductor layer 3; when the coolant circulates in the first cavity 4, the ground wire 7 and the signal wire 6 provided in the first cavity 4 can be insulated and protected to prevent the ground wire 7 and the signal wire 6 from being electrically connected to the first rigid conductor layer 2 serving as a positive conductor or a negative conductor, thereby preventing accidents and casualties.
  • the geometric axis of the first rigid conductor layer 2 is arranged to coincide with the geometric axis of the second rigid conductor layer 3 .
  • the structure of the liquid cooling cable can be regular and easy to process.
  • the cross-sectional area of the first rigid conductor layer 2 differs from the cross-sectional area of the second rigid conductor layer 3 by no more than 20%.
  • the first rigid conductor layer 2 and the second rigid conductor layer 3 can conduct the same maximum current when used as positive conductors and negative conductors, thereby avoiding the maximum current conducted by one of them being less than the maximum current conducted by the other, avoiding the generation of a large amount of heat when one of them conducts current, and avoiding fires caused by overheating of the cable.
  • the inner cross-sectional profile of the first rigid conductor layer 2 is the same as the outer cross-sectional profile of the first rigid conductor layer 2;
  • the inner cross-sectional profile of the second rigid conductor layer 3 is the same as the outer cross-sectional profile of the second rigid conductor layer 3 .
  • the inner cross-sectional profile and the outer cross-sectional profile of one of the first rigid conductor layer 2 and the second rigid conductor layer 3 are the same, and the inner cross-sectional profile and the outer cross-sectional profile of the other are different.
  • the shape of the inner cross-sectional profile and the outer cross-sectional profile of the first rigid conductor layer 2 and the second rigid conductor layer 3 can be selected according to the shape of the connector or terminal connected at both ends of the liquid cooling cable and the terminal installation position, so as to facilitate the installation between the first rigid conductor layer 2 and the second rigid conductor layer 3 and the terminals and save the installation space of the terminals and the liquid cooling cables on the connector.
  • the inner cross-sectional profile of the first rigid conductor layer 2 is different from the outer cross-sectional profile of the first rigid conductor layer 2 ; the inner cross-sectional profile of the second rigid conductor layer 3 is different from the outer cross-sectional profile of the second rigid conductor layer 3 .
  • the inner cross-sectional profile of the first rigid conductor layer 2 is different from the outer cross-sectional profile
  • the inner cross-sectional profile of the second rigid conductor layer 3 is different from the outer cross-sectional profile (as shown in FIG4 ).
  • the shapes of the inner cross-sectional profile and the outer cross-sectional profile of the first rigid conductor layer 2 and the second rigid conductor layer 3 can be arbitrarily selected according to the shapes and positions of the connectors or terminals connected at both ends of the liquid cooling cable, so as to facilitate the assembly of the liquid cooling cable with the connectors or terminals.
  • one of the inner cross-sectional profile of the first rigid conductor layer 2 and the outer cross-sectional profile of the first rigid conductor layer 2 is a curved line, and the other is a broken line;
  • One of the inner cross-sectional profile of the second rigid conductor layer 3 and the outer cross-sectional profile of the second rigid conductor layer 3 is in a curved shape, and the other is in a broken line shape.
  • one of the inner cross-sectional profile of the first rigid conductor layer 2 and the outer cross-sectional profile of the first rigid conductor layer 2 is in a curved shape, and the other is in a broken line shape;
  • One of the inner cross-sectional profile of the second rigid conductor layer 3 and the outer cross-sectional profile of the second rigid conductor layer 3 is in a curved shape, and the other is in a broken line shape.
  • the inner cross-sectional profile and the outer cross-sectional profile of one of the first rigid conductor layer 2 and the second rigid conductor layer 3 are respectively curved or broken line shaped, and the inner cross-sectional profile and the outer cross-sectional profile of the other one can be any shape, for example, a combination of a broken line shape and a curved shape.
  • a plurality of liquid-cooling tubes 8 are disposed in the second cavity 5 , and the liquid-cooling tubes 8 are evenly arranged along the circumferential direction of the second cavity 5 , and coolant flows through the liquid-cooling tubes 8 .
  • the first rigid conductor layer 2 and the second rigid conductor layer 3 can be further separated to avoid the first rigid conductor layer 2 and the second rigid conductor layer 3 contacting each other due to the liquid cooling cable being too long or the first rigid conductor layer 2 and the second rigid conductor layer 3 being insufficiently rigid.
  • At least one insulating support frame 9 is disposed in the second cavity 5 , and the insulating support frame 9 separates the first rigid conductor layer 2 and the second rigid conductor layer 3 along the radial direction of the cable.
  • the first rigid conductor layer 2 and the second rigid conductor layer 3 can be further separated to avoid contact between the first rigid conductor layer 2 and the second rigid conductor layer 3 due to excessive length of the liquid cooling cable or insufficient rigidity of the first rigid conductor layer 2 and the second rigid conductor layer 3.
  • the insulating support frame 9 can be arranged so that the outer contour of the insulating support frame 9 fits with the inner contour of the second rigid conductor layer 3, and the inner contour of the insulating support frame 9 fits with the outer contour axis of the first rigid conductor layer 2; the insulating support frame 9 is provided with a hole or interval that passes through in the axial direction for the circulation of coolant, and the insulating support frame 9 can be continuously arranged along the circumferential line direction of the second cavity 5, and on this basis, it is arranged at intervals or continuously through along the axial direction of the second cavity 5.
  • the insulating support frames 9 can also be arranged to be spaced apart along the circumferential direction of the second cavity 5 , and then further spaced apart or continuously arranged along the axial direction of the second cavity 5 .
  • At least one of the inner wall of the first rigid conductor layer 2, the outer wall of the first rigid conductor layer 2, the inner wall of the second rigid conductor layer 3, and the outer wall of the second rigid conductor layer 3 has a corrugated section extending along the axial direction of the cable.
  • the first rigid conductor layer 2 and the second rigid conductor layer 3 have a corrugated section extending along the axial direction of the cable, which can increase the surface area of the first rigid conductor layer 2 and the second rigid conductor layer 3, increase the heat dissipation area of the first rigid conductor layer 2 and the second rigid conductor layer 3, increase the cooling rate of the coolant, and improve the current carrying capacity of the liquid-cooled cable.
  • an insulating tube 10 is disposed in the first cavity 4
  • the signal line 6 is disposed in the insulating tube 10 .
  • the signal line 6 can be prevented from contacting the first cavity 4.
  • the first rigid conductor layer 2 is electrically connected, which affects the normal use of the signal line 6 in the liquid cooling cable and avoids damaging the control system and other equipment connected to the signal line 6.
  • the insulating tube 10 can be attached to the inner wall of the first rigid conductor, and liquid cooling flows in the insulating tube 10; in another embodiment, the insulating tube 10 is wrapped around the outer periphery of the signal line 6, and the cooling liquid flows between the inner wall of the first rigid conductor and the outer wall of the insulating tube 10.

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Abstract

本申请提供了一种液冷线缆，设置在绝缘护套层(1)内，包括，第一刚性导体层(2)，第一刚性导体层(2)形成第一空腔(4)，第一空腔(4)中设置至少一根信号线(6)；第二刚性导体层(3)，第二刚性导体层(3)包覆第一刚性导体层(2)的外周设置，第一刚性导体层(2)和第二刚性导体层(3)之间形成第二空腔(5)；第一空腔(4)和第二空腔(5)中至少第二空腔(5)中流通冷却液。本申请将第一刚性导体层(2)和第二刚性导体层(3)分别作为正极导体和负极导体使用，其电场分布在正极导体和负极导体之间，强电场并不会对第一空腔(4)内的信号线产生影响，起到了电磁屏蔽的作用，省去屏蔽层的使用，降低液冷线缆的生产成本。

Description

一种液冷线缆
相关申请
本申请要求专利申请号为202223004029.6、申请日为2022.11.11、发明创造名称为“一种液冷线缆”的中国实用新型专利的优先权。
技术领域
本申请涉及线缆技术领域，尤其涉及一种液冷线缆。
背景技术
近年来，随着新能源技术的快速发展，电动汽车大量进入家庭和商业领域，使用者对电池容量、续驶里程、充电速度的要求也越来越高，大功率充电技术逐渐发展起来。大功率充电桩的电压高、电流大，在使用的过程中会产生大量的热量，而且功率越大，线缆越容易发热，发热后的线缆存在引发火灾的风险。
目前液冷线缆的导体都是采用柔性导体，但是在将柔性导体安装到车体以及固定位置时，液冷线缆中液冷通道容易因弯折而堵塞，影响冷却液的流通。
因此，如何提供一种可避免液冷通道因弯折而堵塞，致使冷却液不能及时带走正极导体以及负极导体在充电过程中产生的热量的液冷线缆成为本领域亟需解决的技术难题。
发明内容
本申请的一个目的是提供一种液冷线缆的新技术方案。
本申请可采用下列技术方案来实现的：
根据本申请提供了一种液冷线缆，设置在绝缘护套层内，包括，
第一刚性导体层，所述第一刚性导体层沿线缆轴向方向形成第一空腔，所述第一空腔中设置至少一根信号线；
第二刚性导体层，所述第二刚性导体层包覆所述第一刚性导体层的外周设置，所述第一刚性导体层和所述第二刚性导体层之间形成第二空腔；
所述第一空腔和所述第二空腔中至少所述第二空腔中流通冷却液。
本申请的有益效果是：
一、本申请的液冷线缆中，将第一刚性导体层以及第二刚性导体层分别作为正极导体和负极导体使用，正极导体和负极导体采用环形结构套设，其电场分布在正极导体和负极导体之间，强电场并不会对第一空腔内的信号线产生影响，起到了电磁屏蔽的作用，省去屏蔽层的使用，降低液冷线缆的生产成本。
二、本申请的液冷线缆中，刚性导体不易发生变形，在将第一刚性导体层和第二刚性导体层的两端与连接器或者端子固定后，第一刚性导体层和第二刚性导体层的位置不会发生改变，可在第一空腔以及第二空腔中直接流通冷却液，冷却液可以直接接触第一刚性导体层以及第二刚性导体层，提高冷却液的冷却速度，同时提高液冷线缆的载流能力。
三、本申请的液冷线缆中，通过将第一刚性导体层的几何轴线与所述第二刚性导体层的几何轴线重合设置，可使得液冷线缆结构规整，容易加工。
四、本申请的液冷线缆中，通过将第一刚性导体层的横截面面积与所述第二刚性导体层的横截面面积相等，可保证第一刚性导体层和第二刚性导体层作为正极导体以及负极导体时，能够导通的最大电流相等，避免其中一者导通最大电流小于另一者导通的最大电流，避免发生因其中一者导通电流时产生大量的热量，避免因线缆过热引起火灾。
五、本申请的液冷线缆中，第一刚性导体层的内侧轮廓线与外侧轮廓线相同，以及，第二刚性导体层的内侧轮廓线与外侧轮廓线相同，可使得第一刚性导体层以及第二刚性导体层结构规整，便于加工，也可根据液冷线缆两端连接的连接器或者端子形状以及位置，任意选择第一刚性导体层以及第二刚性导体层的形状。
六、本申请的液冷线缆中，第一刚性导体层的内侧轮廓线与外侧轮廓线不同，以及，第二刚性导体层的内侧轮廓线与外侧轮廓线不同，可根据液冷线缆两端连接的连接器或者端子形状以及位置，任意选择第一刚性导体层以及第二刚性导体层的形状。
七、本申请的液冷线缆中，通过在第二空腔中设置液冷管以及绝缘支撑架，可进一步分离第一刚性导体层以及第二刚性导体层，避免因液冷线缆过长，或者，因第一刚性导体层以及第二刚性导体层的刚性不足，导致第一刚性导体层以及第二刚性导体层相互接触。
八、本申请的液冷线缆中，所述第一刚性导体层及所述第二刚性导体层具有沿所述线缆轴向方向延伸的波纹区段，可增加第一刚性导体层以及第二刚性导体层的表面积， 增加第一刚性导体层以及第二刚性导体层的散热面积，提高冷却液的降温速度，提高液冷线缆的载流能力。
九、本申请的液冷线缆中，通过第一空腔中设置绝缘管，绝缘管中设置信号线，可防止信号线与第一刚性导体层发生电连接，影响液冷线缆中信号线的正常使用，避免损坏信号线连接的控制系统等设备。
附图说明
以下附图仅旨在于对本申请做示意性说明和解释，并不限定本申请的范围。其中：
图1为第一实施方式的液冷线缆的结构示意图；
图2为第二实施方式的液冷线缆的结构示意图；
图3为第三实施方式的液冷线缆的结构示意图；
图4为第四实施方式的液冷线缆的结构示意图；
图5为第五实施方式的液冷线缆的结构示意图。
具体实施方式
为了对本申请的技术特征、目的和效果有更加清楚的理解，现对照附图说明本申请的具体实施方式。
现在将参照附图来详细描述本申请的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本申请的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
根据本申请的一种液冷线缆，如图1至图3所示，该液冷线缆设置在绝缘护套层1内，该液冷线缆包括：
第一刚性导体层2，所述第一刚性导体层2沿线缆轴向方向形成第一空腔4，所述 第一空腔4中设置至少一根信号线6；
第二刚性导体层3，所述第二刚性导体层3包覆所述第一刚性导体层2的外周设置，所述第一刚性导体层2和所述第二刚性导体层3之间形成第二空腔5；
所述第一空腔4和所述第二空腔5中至少所述第二空腔5中流通冷却液。
将第一刚性导体层2以及第二刚性导体层3分别作为正极导体和负极导体使用，正极导体和负极导体采用环形结构套设，其电场分布在正极导体和负极导体之间，强电场并不会对第一空腔4内的信号线6产生影响，起到了电磁屏蔽的作用，省去屏蔽层的使用，降低液冷线缆的生产成本。
刚性导体不易发生变形，在将第一刚性导体层2和第二刚性导体层3的两端与连接器或者端子固定后，第一刚性导体层2和第二刚性导体层3的位置不会发生改变，可在第一空腔4以及第二空腔5中直接流通冷却液，冷却液可以直接接触第一刚性导体层2以及第二刚性导体层3，提高冷却液的冷却速度，同时提高液冷线缆的载流能力。
在第二空腔5中流通冷却液可以同时对第一刚性导体层2以及第二刚性导体层3进行降温处理，所以，通过至少在第二空腔5中流通冷却液即可对液冷线缆进行降温处理，冷却液可以经过第一空腔4回流，第一空腔4可以根据需要布置有地线7。
通过在液冷线缆中流通绝缘的冷却液，在绝缘的冷却液流通在第二空腔5时，第一刚性导体层2以及第二刚性导体层3之间可以不设置绝缘层；冷却液流通在第一空腔4时，可以绝缘保护第一空腔4中设置的地线7以及信号线6，避免地线7以及信号线6与作为正极导体或者负极导体的第一刚性导体层2电连接，造成事故以及人员伤亡。
根据本申请的一种液冷线缆的一实施例中，所述第一刚性导体层2的几何轴线与所述第二刚性导体层3的几何轴线重合设置。
通过将第一刚性导体层2的几何轴线与所述第二刚性导体层3的几何轴线重合设置，可使得液冷线缆结构规整，容易加工。
根据本申请的一种液冷线缆的一实施例中，所述第一刚性导体层2的横截面面积与所述第二刚性导体层3的横截面面积相差不超过20％。
通过将第一刚性导体层2的横截面面积与所述第二刚性导体层3的横截面面积相差不超过20％，可保证第一刚性导体层2和第二刚性导体层3作为正极导体以及负极导体时，能够导通相同的最大电流，避免其中一者导通最大电流小于另一者导通的最大电流，避免发生因其中一者导通电流时产生大量的热量，避免因线缆过热引起火灾。
根据本申请的一种液冷线缆的一实施例中，所述第一刚性导体层2的内侧截面轮廓与所述第一刚性导体层2的外侧截面轮廓相同；和/或
所述第二刚性导体层3的内侧截面轮廓与所述第二刚性导体层3的外侧截面轮廓相同。
可以理解为，如图5所示，第一刚性导体层2和第二刚性导体层3中一者的内侧截面轮廓和外侧截面轮廓相同，另一者的内侧截面轮廓和外侧截面轮廓不相同，此时可根据液冷线缆两端连接的连接器或者端子形状以及端子安装位置，选择第一刚性导体层2以及第二刚性导体层3的内侧截面轮廓和外侧截面轮廓的形状，方便第一刚性导体层2和第二刚性导体层3与端子之间的安装以及节省连接器上端子与液冷线缆的安装空间。
也可以理解为，如图1所示，第一刚性导体层2和第二刚性导体层3的内侧截面轮廓和外侧截面轮廓均相同，此时得到的液冷线缆结构规整，方便加工。
根据本申请的一种液冷线缆的一实施例中，所述第一刚性导体层2的内侧截面轮廓与所述第一刚性导体层2的外侧截面轮廓不同；所述第二刚性导体层3的内侧截面轮廓与所述第二刚性导体层3的外侧截面轮廓不同。
第一刚性导体层2的内侧截面轮廓与外侧截面轮廓不同，以及，第二刚性导体层3的内侧截面轮廓与外侧截面轮廓不同(如图4所示)，可根据液冷线缆两端连接的连接器或者端子形状以及位置，任意选择第一刚性导体层2以及第二刚性导体层3的内侧截面轮廓和外侧截面轮廓的形状，方便液冷线缆与连接器或者端子的组装。
更具体的，如图4所示，所述第一刚性导体层2的内侧截面轮廓与所述第一刚性导体层2的外侧截面轮廓两者中的一者为曲线形，另一者为折线形；和
所述第二刚性导体层3的内侧截面轮廓与所述第二刚性导体层3的外侧截面轮廓两者中的一者为曲线形，另一者为折线形。
更具体的，所述第一刚性导体层2的内侧截面轮廓与所述第一刚性导体层2的外侧截面轮廓两者中的一者为曲线形，另一者为折线形；或
所述第二刚性导体层3的内侧截面轮廓与所述第二刚性导体层3的外侧截面轮廓两者中的一者为曲线形，另一者为折线形。
可以理解为，第一刚性导体层2和第二刚性导体层3中一者的内侧截面轮廓和外侧截面轮廓分别是曲线形或者折线形，另一者的内侧截面轮廓和外侧截面轮廓的形状可以是任意形状，例如可以是折线形和曲线形的组合结构。
根据本申请的一种液冷线缆的一实施例中，如图2所示，所述第二空腔5中设置多根液冷管8，所述液冷管8沿所述第二空腔5周向方向均匀排布，所述液冷管8中流通冷却液。
通过在第二空腔5中设置液冷管8，可进一步分离第一刚性导体层2以及第二刚性导体层3，避免因液冷线缆过长，或者，因第一刚性导体层2以及第二刚性导体层3的刚性不足，导致的第一刚性导体层2以及第二刚性导体层3相互接触。
根据本申请的一种液冷线缆的一实施例中，如图3所示，所述第二空腔5中设置至少一个绝缘支撑架9，所述绝缘支撑架9沿线缆径向方向分离所述第一刚性导体层2和所述第二刚性导体层3。
通过在第二空腔5中设置液冷管8以及绝缘支撑架9，可进一步分离第一刚性导体层2以及第二刚性导体层3，避免因液冷线缆过长，或者，因第一刚性导体层2以及第二刚性导体层3的刚性不足，导致第一刚性导体层2以及第二刚性导体层3相互接触。
绝缘支撑架9可以设置成绝缘支撑架9的外侧轮廓与第二刚性导体层3的内侧轮廓贴合，绝缘支撑架9的内侧轮廓与第一刚性导体层2的外侧轮廓轴贴合；绝缘支撑架9设置有沿轴向方向贯通的孔道或者间隔，以供冷却液流通，绝缘支撑架9可以沿第二空腔5周向线方向连续设置，在此基础上沿第二空腔5轴线方向间隔设置或者连续贯通设置。
绝缘支撑架9也可以设置成沿第二空腔5的周向方向间隔设置，在此基础上再沿第二空腔5的轴向方向间隔设置或者连续贯通设置。
根据本申请的一种液冷线缆的一实施例中，所述第一刚性导体层2的内壁、所述第一刚性导体层2的外壁、所述第二刚性导体层3的内壁以及所述第二刚性导体层3的外壁中的至少一者具有沿所述线缆轴向方向延伸的波纹区段。
所述第一刚性导体层2及所述第二刚性导体层3具有沿所述线缆轴向方向延伸的波纹区段，可增加第一刚性导体层2以及第二刚性导体层3的表面积，增加第一刚性导体层2以及第二刚性导体层3的散热面积，提高冷却液的降温速度，提高液冷线缆的载流能力。
根据本申请的一种液冷线缆的一实施例中，如图2和图3所示，所述第一空腔4内设置有绝缘管10，所述绝缘管10中设置所述信号线6。
通过第一空腔4中设置绝缘管10，绝缘管10中设置信号线6，可防止信号线6与 第一刚性导体层2发生电连接，影响液冷线缆中信号线6的正常使用，避免损坏信号线6连接的控制系统等设备。
在本申请的一种实施方式为(图中未示出)，绝缘管10可以附着在第一刚性导体内壁，液冷却流通在绝缘管10内；另一种实施方式为，绝缘管10包覆在信号线6外周，冷却液流通在第一刚性导体内壁与绝缘管10外壁之间。
虽然已经通过例子对本申请的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本申请的范围。本领域的技术人员应该理解，可在不脱离本申请的范围和精神的情况下，对以上实施例进行修改。本申请的范围由所附权利要求来限定。

Claims (10)

  1. 一种液冷线缆，设置在绝缘护套层内，其中，包括，
    第一刚性导体层，所述第一刚性导体层沿线缆轴向方向形成第一空腔，所述第一空腔中设置至少一根信号线；
    第二刚性导体层，所述第二刚性导体层包覆所述第一刚性导体层的外周设置，所述第一刚性导体层和所述第二刚性导体层之间形成第二空腔；
    所述第一空腔和所述第二空腔中至少所述第二空腔中流通冷却液。
  2. 根据权利要求1所述的液冷线缆，其中，所述第一刚性导体层的几何轴线与所述第二刚性导体层的几何轴线重合设置。
  3. 根据权利要求1所述的液冷线缆，其中，所述第一刚性导体层的横截面面积与所述第二刚性导体层的横截面面积相差不超过20％。
  4. 根据权利要求1所述的液冷线缆，其中，所述第一刚性导体层的内侧截面轮廓与所述第一刚性导体层的外侧截面轮廓相同；和/或
    所述第二刚性导体层的内侧截面轮廓与所述第二刚性导体层的外侧截面轮廓相同。
  5. 根据权利要求1所述的液冷线缆，其中，所述第一刚性导体层的内侧截面轮廓与所述第一刚性导体层的外侧截面轮廓不同；所述第二刚性导体层的内侧截面轮廓与所述第二刚性导体层的外侧截面轮廓不同。
  6. 根据权利要求5所述的液冷线缆，其中，所述第一刚性导体层的内侧截面轮廓与所述第一刚性导体层的外侧截面轮廓两者中的一者为曲线形，另一者为折线形；和/或所述第二刚性导体层的内侧截面轮廓与所述第二刚性导体层的外侧截面轮廓两者中的一者为曲线形，另一者为折线形。
  7. 根据权利要求1所述的液冷线缆，其中，所述第二空腔中设置多根液冷管，所述液冷管沿所述第二空腔周向方向均匀排布，所述液冷管中流通冷却液。
  8. 根据权利要求1所述的液冷线缆，其中，所述第二空腔中设置至少一个绝缘支撑架，所述绝缘支撑架沿线缆径向方向分离所述第一刚性导体层和所述第二刚性导体层。
  9. 根据权利要求1所述的液冷线缆，其中，所述第一刚性导体层的内壁、所述第一刚性导体层的外壁、所述第二刚性导体层的内壁以及所述第二刚性导体层的外壁中的至少一者具有沿所述线缆轴向方向延伸的波纹区段。
  10. 根据权利要求1所述的液冷线缆，其中，所述第一空腔内设置有绝缘管，所述绝缘管中设置所述信号线。
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