CN116779235A - Cable with improved cable characteristics - Google Patents

Abstract

The application discloses a cable, which comprises: the core wire is provided with a conductor and a first insulating layer, and the outer side of the conductor is sleeved with the first insulating layer; the first heat exchange pipeline is sleeved outside the core wire and defines a first heat exchange flow passage together with the first insulating layer, and a heat exchange medium is arranged in the first heat exchange flow passage. From this, through the outside cover at the conductor establish first insulating layer, can be with the heart yearn submergence flow good and in the coolant liquid that specific heat capacity is big, can improve the cooling effect to can reduce the volume of cable on guaranteeing the basis of charging power, can satisfy the lightweight, the miniaturization demand of cable, and, need not set up ion filter, be favorable to improving the reliability of use of cable, and can reduce the manufacturing cost of cable.

Description

Cable with improved cable characteristics

Technical Field

The application relates to the field of electrical elements, in particular to a cable.

Background

In the related art, in order to meet the requirements of light weight and miniaturization of the cable, the cable needs to cool the conductor of the cable when in use, so that the cable with a small size can realize high-power charging.

The existing cable cooling scheme mainly comprises two types, namely, one type of scheme is that a conductor of a cable is immersed into insulating cooling oil, however, the insulating cooling oil is poor in low-temperature fluidity and small in specific heat capacity, so that the cooling effect is poor, the cooling requirement of the conductor cannot be met, and the light-weight and small-size requirements of the cable cannot be met. Secondly, the conductors of the cable are immersed in the cooling liquid which is good in fluidity and large in specific heat capacity, and an ion filter is arranged, so that conductive ions in the cooling liquid are adsorbed through the ion filter, however, the service life of the ion filter is short, the use reliability of the cable is poor, and the manufacturing cost of the ion filter is high, so that the manufacturing cost of the cable is high.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to provide a cable which can meet the demand for weight reduction and miniaturization, and which is highly reliable in use and low in manufacturing cost.

The cable according to the application comprises: the core wire is provided with a conductor and a first insulating layer, and the first insulating layer is sleeved on the outer side of the conductor; the first heat exchange pipeline is sleeved outside the core wire and forms a first heat exchange flow passage together with the first insulating layer, and a heat exchange medium is arranged in the first heat exchange flow passage.

According to the cable disclosed by the application, the first insulating layer is sleeved on the outer side of the conductor, so that the core wire can be immersed in the cooling liquid with good flowability and large specific heat capacity, the cooling effect can be improved, the volume of the cable can be reduced on the basis of ensuring the charging power, the requirements of light weight and miniaturization of the cable can be met, an ion filter is not required, the use reliability of the cable is improved, and the manufacturing cost of the cable can be reduced.

In some examples of the present application, the core wire and the first heat exchange pipeline are multiple, and the core wire and the first heat exchange pipeline are in one-to-one correspondence.

In some examples of the application, the cable further comprises: the heat exchange assembly is communicated with the first heat exchange flow channel and is suitable for driving the heat exchange medium in the first heat exchange flow channel to flow.

In some examples of the present application, the heat exchange assembly is a plurality of heat exchange assemblies, and at least two first heat exchange flow channels are respectively communicated with different heat exchange assemblies.

In some examples of the application, the cable further comprises: the second heat exchange pipeline is used for exchanging heat with the core wire, the second heat exchange pipeline defines a second heat exchange flow passage, and the second heat exchange flow passage is internally suitable for being provided with the heat exchange medium.

In some examples of the present application, the second heat exchange pipeline is disposed between at least two adjacent first heat exchange pipelines.

In some examples of the present application, the core wire and the first heat exchange pipeline are all multiple, and the plurality of core wires form a plurality of core wire groups, and the first heat exchange pipeline is sleeved outside each core wire group.

In some examples of the application, each of the core wire groups has a filler around which a plurality of the core wires of each of the core wire groups are arranged in a circumferential direction of the filler, the filler supporting a corresponding plurality of the core wires.

In some examples of the application, the core wire is configured as the filler.

In some examples of the application, a third heat exchange flow passage is formed in the conductor, the inner wall of the third heat exchange flow passage is provided with a second insulating layer, and the third heat exchange flow passage is suitable for being provided with the heat exchange medium.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of one embodiment of a cable according to an embodiment of the present application;

FIG. 2 is a schematic view of another angle of an embodiment of a cable according to an embodiment of the present application;

fig. 3 is a schematic cross-sectional view of the cable according to fig. 1 (signal lines omitted);

FIG. 4 is a schematic view of another embodiment of a cable according to an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of the cable according to FIG. 4;

fig. 6 is a schematic cross-sectional view (omitting signal lines) of yet another embodiment of a cable according to an embodiment of the present application;

fig. 7 is a schematic cross-sectional view (omitting signal lines) of yet another embodiment of a cable according to an embodiment of the present application.

Reference numerals:

a cable 100;

a core wire 10; a conductor 11; a first insulating layer 12; a second insulating layer 13; a third heat exchange flow path 14;

a first heat exchange line 20; a first heat exchange flow passage 21;

a second heat exchange line 30; a second heat exchange flow passage 31;

a core wire group 40; a filler 41;

a positive electrode core wire 50; a negative electrode core wire 60; a protective sleeve 70; a shielding layer 71; a signal line 72; and a ground wire 73.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

A cable 100 according to an embodiment of the present application is described below with reference to fig. 1-7.

As shown in fig. 1 to 7, a cable 100 according to an embodiment of the present application includes: a core wire 10 and a first heat exchange line 20.

The core wire 10 has a conductor 11 and a first insulating layer 12, and the first insulating layer 12 is provided outside the conductor 11. As some alternative embodiments of the present application, there may be a gap between the first insulating layer 12 and the conductor 11, and as some alternative embodiments of the present application, the first insulating layer 12 may be in contact with the outer surface of the conductor 11.

The first heat exchange pipeline 20 is sleeved outside the core 10, in other words, the core 10 is arranged through the first heat exchange pipeline 20, the first heat exchange pipeline 20 and the core 10 can jointly define a first heat exchange flow channel 21, specifically, the first heat exchange pipeline 20 and the first insulating layer 12 can jointly define the first heat exchange flow channel 21, and a heat exchange medium is suitable to be arranged in the first heat exchange flow channel 21.

Wherein, as some alternative embodiments of the present application, the heat exchange medium may be a cooling liquid, such as but not limited to an ethylene glycol aqueous solution, and the cooling liquid may be disposed in the first heat exchange flow channel 21, that is, the cooling liquid may be stored in the first heat exchange flow channel 21, and the cooling liquid may be capable of performing heat exchange with the core wire 10 to adjust the temperature of the core wire 10, specifically, the cooling liquid may be capable of performing heat exchange with the core wire 10 to cool the core wire 10, so as to reduce the probability of danger caused by overheating of the core wire 10.

It should be explained that, compared with the insulating cooling oil, the fluidity of the cooling liquid is good and the specific heat capacity is large, and the core wire 10 can be reliably cooled by arranging the cooling liquid in the first heat exchange flow channel 21, so that the volume of the cable 100 can be reduced on the basis of ensuring the charging power, specifically, the cross-sectional area of the cable 100 can be reduced, the light-weight and miniaturized requirements of the cable 100 can be satisfied, and when the cable 100 is used by a user, the cable 100 can be conveniently operated by the user due to the small volume and light weight of the cable 100, thereby improving the use experience of the user.

By sleeving the first insulating layer 12 on the outer side of the conductor 11, the cooling liquid and the conductor 11 can be isolated, the use safety of the cable 100 is ensured, an ion filter is not required to be arranged, the use reliability of the cable 100 is improved, and the manufacturing cost of the cable 100 can be reduced.

As some alternative embodiments of the present application, the coolant may be driven to flow by a liquid pump to provide good temperature uniformity throughout the wick 10. Compared with the scheme of using insulating cooling oil, the cooling liquid has good fluidity, so that the volume of the liquid pump can be reduced, and the production cost of the cable 100 can be reduced.

As some alternative embodiments of the present application, the first insulating layer 12 may be made of a material having high resistance to high temperature and chemical liquids, for example, the material of the first insulating layer 12 may be, but not limited to, fluoroplastic, rubber, PP (polypropylene-polypropylene), PE (polyethylene-polyethylene), or the like. This may increase the useful life of the cable 100. As a specific embodiment of the present application, the material of the first insulating layer 12 may be a fluoroplastic, and the surface of the fluoroplastic is smooth, so that the fluidity of the cooling liquid may be improved, and further, the outer diameter of the cable 100 may be reduced (because the surface of the fluoroplastic is smooth, the flow resistance of the cooling liquid may be reduced, the cooling effect of the cooling liquid may be improved, and thus, the outer diameter of the cable 100 may be reduced on the basis of unchanged charging power).

As some alternative embodiments of the present application, the spacing between the inner surface of the first heat exchange tube 20 and the outer surface of the core wire 10 may be any value between 0.8mm and 1.5mm, for example, the spacing between the inner surface of the first heat exchange tube 20 and the outer surface of the core wire 10 may be, but is not limited to, 0.8mm, 1.0mm, 1.1mm, 1.2mm, 1.4mm, 1.5mm, etc.

As some alternative embodiments of the present application, the material of the core body 11 may be, but not limited to, a metal material, a polymer material, a composite material, etc., for example, the material of the core body 11 may be a metal material, and the metal material may be, but not limited to, copper, aluminum, a copper alloy, an aluminum alloy.

Moreover, it should be noted that, since the cable 100 according to the present application can meet the requirements of light weight and miniaturization, the volume of the conductor 11 can be reduced, the cross-sectional area of the conductor 11 can be made small, which is beneficial to saving materials and further reducing cost.

Thus, by sleeving the first insulating layer 12 on the outer side of the conductor 11, the core wire 10 can be immersed in the cooling liquid with good fluidity and large specific heat capacity, the cooling effect can be improved, so that the volume of the cable 100 can be reduced on the basis of ensuring the charging power, the requirements of light weight and miniaturization of the cable 100 can be met, and an ion filter is not required, thereby being beneficial to improving the use reliability of the cable 100 and reducing the manufacturing cost of the cable 100.

In addition, the cable 100 of the present application can improve the current carrying capacity and can meet the requirement of high-power charging.

The cable 100 of the present application has good compatibility, and may use various heat exchange media, for example, as some alternative embodiments of the present application, the heat exchange media may also be cooling oil, in other words, the cable 100 of the present application may also use cooling oil as the heat exchange media.

As some alternative embodiments of the present application, as shown in fig. 1-7, the cable 100 may further include a protective sleeve 70, where the protective sleeve 70 may be sleeved on the outer side of the first heat exchange pipeline 20, that is, the first heat exchange pipeline 20 may be disposed through the protective sleeve 70, where when there are a plurality of first heat exchange pipelines 20, the plurality of first heat exchange pipelines 20 may be disposed through the protective sleeve 70, and the protective sleeve 70 may provide protection for other components of the cable 100.

As some alternative embodiments of the present application, as shown in fig. 1 to 7, the cable 100 may further include a shielding layer 71, the shielding layer 71 may be disposed inside the protective sheath 70, that is, the shielding layer 71 may be disposed through the protective sheath 70, in other words, the protective sheath 70 may be sleeved outside the shielding layer 71, and the shielding layer 71 may be sleeved outside the first heat exchange tube 20, that is, the first heat exchange tube 20 may be disposed through the shielding layer 71, and when the first heat exchange tube 20 is plural, the plural first heat exchange tubes 20 may be disposed through the shielding layer 71, and by disposing the shielding layer 71, EMC (Electromagnetic Compatibil ity-electromagnetic compatibility) performance of the cable 100 may be improved.

As some alternative embodiments of the present application, as shown in fig. 1, 2, 4 and 5, the cable 100 may further include signal lines 72, the number of the signal lines 72 may be set to be plural, the signal lines 72 may be provided through the shielding layer 71, and at least one of the plurality of signal lines 72 may be configured as a ground line 73.

In some embodiments of the present application, as shown in fig. 1 to 7, the number of the core wires 10 may be plural, the number of the first heat exchanging pipes 20 may be plural, and the plural core wires 10 and the plural first heat exchanging pipes 20 may be disposed in one-to-one correspondence, specifically, each first heat exchanging pipe 20 may be sleeved outside the corresponding core wire 10. For example, as shown in fig. 1 to 3, the number of the core wires 10 may be four, the number of the first heat exchange pipelines 20 may be four, and each first heat exchange pipeline 20 may be sleeved outside the corresponding core wire 10. By the arrangement, the contact area between the core wire 10 and the cooling liquid can be increased on the basis of not changing the total volume of the core wire 10, so that the cooling efficiency can be improved, the cross-sectional area of the core wire 10 can be reduced on the basis of keeping the charging power unchanged, the outer diameter of the cable 100 can be reduced, the weight of the cable 100 can be reduced, the material saving is facilitated, and the cable 100 can be operated by a user conveniently.

In some embodiments of the present application, the cable 100 may further include: a heat exchange assembly (not shown) may be provided in communication with the first heat exchange flow passage 21 and adapted to drive the flow of a heat exchange medium (e.g. a cooling liquid) within the first heat exchange flow passage 21.

As some alternative embodiments of the present application, the heat exchange assembly may include a pipe and a liquid pump, where the pipe may be disposed in communication with the first heat exchange flow channel 21, a cooling liquid may be disposed in the pipe, the liquid pump may be capable of driving the cooling liquid in the first heat exchange flow channel 21 to flow, specifically, when the liquid pump works, the cooling liquid in the first heat exchange flow channel 21 may flow into the pipe, and the cooling liquid in the pipe may flow into the first heat exchange flow channel 21, so that the cooling liquid may flow in the first heat exchange flow channel 21 and the pipe, and the temperature uniformity of the core wire 10 may be good.

As some optional embodiments of the present application, the heat exchange assembly may further include a heat exchanger, and the heat exchanger may be disposed in communication with the pipeline, and the cooling liquid in the pipeline may flow into the heat exchanger, and by disposing the heat exchanger, the temperature of the cooling liquid may be rapidly reduced, which is beneficial to improving the cooling effect of the cooling liquid.

In some embodiments of the present application, the number of heat exchange assemblies may be plural, and at least two first heat exchange flow passages 21 may be respectively communicated with different heat exchange assemblies. For example, the number of heat exchange assemblies may be set to, but is not limited to, 2, 3, etc.

As some alternative embodiments of the present application, the number of the core wires 10 may be set to be plural, the number of the first heat exchanging pipes 20 may be set to be plural, and each first heat exchanging pipe 20 may be sleeved outside the corresponding core wire 10. Some of the plurality of core wires 10 may be positive core wires 50, another part of the plurality of core wires 10 may be negative core wires 60 (as shown in fig. 3 and 5-7), the number of heat exchange components may be two, and the first heat exchange flow channels 21 located outside the positive core wires 50 and the first heat exchange flow channels 21 located outside the negative core wires 60 may be respectively communicated with different heat exchange components.

For example, the number of heat exchange assemblies may be set to 2, the number of core wires 10 may be set to four, the number of first heat exchange pipes 20 may be set to four, and each first heat exchange pipe 20 may be sleeved outside the corresponding core wire 10. And, two of the four core wires 10 may be the positive electrode core wire 50, the other two of the four core wires 10 may be the negative electrode core wire 60, the first heat exchanging flow passages 21 outside the two positive electrode core wires 50 may be in communication with one of the heat exchanging components, and the first heat exchanging flow passages 21 outside the two negative electrode core wires 60 may be in communication with the other heat exchanging component. This arrangement can separate the cooling circuit of the positive electrode core wire 50 from the cooling circuit of the negative electrode core wire 60, and can reduce the probability of short-circuiting of the electric passing cooling medium, thereby improving the electric safety of the cable 100, and this arrangement is advantageous in improving the cooling effect of the cooling liquid.

In some embodiments of the present application, as shown in fig. 4 and 5, the cable 100 may further include: the second heat exchange pipeline 30, the second heat exchange pipeline 30 may be used for exchanging heat with the core wire 10, the second heat exchange pipeline 30 may define a second heat exchange flow channel 31, and a heat exchange medium is suitable for being arranged in the second heat exchange flow channel 31.

Specifically, the second heat exchange line 30 may be disposed adjacent to the first heat exchange line 20, and as some alternative embodiments of the present application, the second heat exchange line 30 may be in contact with the first heat exchange line 20, and as some alternative embodiments of the present application, a gap may be provided between the second heat exchange line 30 and the first heat exchange line 20. The extending directions of the core wire 10, the first heat exchange pipeline 20, and the second heat exchange pipeline 30 may be the same, and the extending directions of the signal wire 72 and the protective sleeve 70 may be the same as the extending directions of the core wire 10, the first heat exchange pipeline 20, and the second heat exchange pipeline 30.

The second heat exchange line 30 may define a second heat exchange flow channel 31, and the second heat exchange flow channel 31 is adapted to be provided with a heat exchange medium, and as some alternative embodiments of the present application, the heat exchange medium in the second heat exchange flow channel 31 may be the same as the heat exchange medium in the first heat exchange flow channel 21, for example, the heat exchange medium in the second heat exchange flow channel 31 and the heat exchange medium in the first heat exchange flow channel 21 may be cooling liquid, such as but not limited to ethylene glycol aqueous solution. As some alternative embodiments of the present application, the heat exchange medium in the second heat exchange flow channel 31 may be different from the heat exchange medium in the first heat exchange flow channel 21.

As some alternative embodiments of the present application, the second heat exchange flow channel 31 may be disposed in communication with a heat exchange assembly capable of driving a flow of a heat exchange medium (e.g., a cooling liquid) within the second heat exchange flow channel 31. By providing the second heat exchange line 30, the temperature of the core 10 can be reduced by the second heat exchange line 30 to reduce the probability of the core 10 being too high.

In some embodiments of the present application, as shown in fig. 4 and 5, a second heat exchange line 30 may be provided between at least two adjacent first heat exchange lines 20. Specifically, one second heat exchange line 30 may be disposed between at least two adjacent first heat exchange lines 20, or a plurality of second heat exchange lines 30 may be disposed between at least two adjacent first heat exchange lines 20.

As some alternative embodiments of the present application, a second heat exchange pipe 30 may be disposed between two adjacent first heat exchange pipes 20 along a certain straight line direction, and as some alternative embodiments of the present application, as shown in fig. 4 and 5, a second heat exchange pipe 30 may be disposed between two adjacent first heat exchange pipes 20 along the circumferential direction of the cable 100. The arrangement of the second heat exchange pipeline 30 can make the arrangement position reasonable, can fully utilize the cold energy of the heat exchange medium in the second heat exchange flow channel 31, and can reduce the probability of overhigh temperature of the core wire 10.

As a specific embodiment of the present application, as shown in fig. 4 and 5, the number of the core wires 10 may be two, the number of the first heat exchanging pipes 20 may be two, and each first heat exchanging pipe 20 may be sleeved outside the corresponding core wire 10. And, 1 of the two core wires 10 may be the positive core wire 50, the other 1 of the two core wires 10 may be the negative core wire 60, the number of the second heat exchange pipes 30 may be two, and one second heat exchange pipe 30 may be disposed between two adjacent first heat exchange pipes 20 in the circumferential direction of the cable 100. Specifically, the two first heat exchange pipes 20, the two second heat exchange pipes 30 may be arranged in a circumferential direction of the cable 100, and one second heat exchange pipe 30 may be disposed between two adjacent first heat exchange pipes 20 in the circumferential direction of the cable 100.

In some embodiments of the present application, as shown in fig. 6, the number of the core wires 10 may be set to be plural, the number of the first heat exchanging pipes 20 may be set to be plural, the plurality of core wires 10 may form a plurality of core wire groups 40, and the first heat exchanging pipes 20 may be sleeved outside each of the core wire groups 40. As some alternative embodiments of the present application, the plurality of core wires 10 (two core wires 10 or more than two core wires 10) may be twisted to form a group of core wire groups 40, and the plurality of first heat exchange pipes 20 may be respectively sleeved outside the group of core wires 40.

For example, the number of the core wires 10 may be set to 8, the number of the first heat exchanging pipes 20 may be set to two, 4 core wires 10 may be stranded to form one core wire group 40,8 core wires 10 may be stranded to form two core wire groups 40, and two first heat exchanging pipes 20 may be respectively sleeved outside the two core wire groups 40. For another example, the number of the core wires 10 may be set to 10, the number of the first heat exchanging pipes 20 may be set to two, 5 core wires 10 may be twisted to form one core wire group 40, 10 core wires 10 may be twisted to form two core wire groups 40, and two first heat exchanging pipes 20 may be respectively sleeved outside the two core wire groups 40.

As some alternative embodiments of the present application, the cross-sectional areas of the plurality of core wires 10 stranded into the one core wire group 40 may be the same, and the cross-sectional areas of the plurality of core wires 10 stranded into the one core wire group 40 may be different.

The contact area between the core wire 10 and the cooling medium can be increased, so that the cooling efficiency can be improved, the cross-sectional area of the core wire 10 can be reduced on the basis of keeping the charging power unchanged, the outer diameter of the cable 100 can be reduced, the weight of the cable 100 can be reduced, the material saving is facilitated, the cable 100 can be operated by a user conveniently, and the use experience of the user can be improved.

In some embodiments of the present application, as shown in fig. 6, each of the core wire groups 40 may have a filler 41, and the plurality of core wires 10 of each of the core wire groups 40 may be arranged around the filler 41 in a circumferential direction of the filler 41, and the filler 41 may support the corresponding plurality of core wires 10.

Wherein the core wire set 40 may have a plurality of core wires 10 and a filler 41, the plurality of core wires 10 may be stranded, and the plurality of core wires 10 may be arranged around the filler 41 in a circumferential direction of the filler 41, the filler 41 may support the corresponding plurality of core wires 10 (specifically, the filler 41 may support the plurality of core wires 10 arranged around the circumferential direction thereof), as some alternative embodiments of the present application, the filler 41 may be, but not limited to, rubber, the filler 41 may support the corresponding plurality of core wires 10, the shape of the core wire set 40 may be rounded, and the probability of deformation of the core wire set 40 may be reduced.

In some embodiments of the present application, as shown in fig. 6, the core wire 10 may be configured as the filler 41, that is, the core wire 10 may be used as the filler 41, and as some alternative embodiments of the present application, the core wire 10 as the filler 41 may be twisted with other core wires 10, and as some alternative embodiments of the present application, the core wire 10 as the filler 41 may not be twisted with other core wires 10. By constructing the core wire 10 as the filler 41, the current carrying capacity of the cable 100 can be improved, and the need for high-power charging can be satisfied.

As an embodiment of the present application, as shown in fig. 6, the number of the core wires 10 may be set to be plural, and the plurality of core wires 10 may form two core wire groups 40, and the first heat exchanging pipe 20 may be sleeved outside each of the core wire groups 40. The core wires 10 of one of the core wire groups 40 may be the positive core wires 50, and the core wires 10 of the other core wire group 40 may be the negative core wires 60.

In some embodiments of the present application, as shown in fig. 7, the conductor 11 may have a third heat exchange flow passage 14 formed therein, and the inner wall of the third heat exchange flow passage 14 may be provided with a second insulating layer 13, and the third heat exchange flow passage 14 may be adapted to be provided with a heat exchange medium therein.

Specifically, the first insulating layer 12 is sleeved on the outer side of the conductor 11, the third heat exchange flow channel 14 may be formed in the conductor 11, the second insulating layer 13 may be disposed on the inner wall of the third heat exchange flow channel 14, that is, the second insulating layer 13 may be disposed through the conductor 11, and the heat exchange medium in the third heat exchange flow channel 14 may be, but is not limited to, cooling liquid.

As some alternative embodiments of the present application, the heat exchange medium in the third heat exchange flow passage 14 and the heat exchange medium in the first heat exchange flow passage 21 may be the same. As some alternative embodiments of the present application, the third heat exchange flow channel 14 may be disposed in communication with a heat exchange assembly capable of driving the flow of a heat exchange medium (e.g., a cooling liquid) within the third heat exchange flow channel 14.

By forming the third heat exchanging flow passage 14 in the conductor 11, the contact area of the core wire 10 with the coolant can be increased, so that the cooling efficiency can be improved, and the cross-sectional area of the core wire 10 can be reduced while maintaining the charging power unchanged, which is advantageous in saving materials.

As a specific embodiment of the present application, as shown in fig. 7, the number of the core wires 10 may be two, the number of the first heat exchanging pipes 20 may be two, and each first heat exchanging pipe 20 may be sleeved outside the corresponding core wire 10. Also, 1 of the two cores 10 may be the positive electrode core 50, and the other 1 of the two cores 10 may be the negative electrode core 60. The third heat exchange flow channel 14 is formed in the conductor 11 of the negative electrode core wire 60, the third heat exchange flow channel 14 is formed in the conductor 11 of the positive electrode core wire 50, and the cooling medium in the first heat exchange flow channel 21 and the third heat exchange flow channel 14 can be glycol water solution.

As some alternative embodiments of the present application, the number of the heat exchange components may be two, the first heat exchange flow channel 21 outside the positive electrode core wire 50 and the third heat exchange flow channel 14 inside the positive electrode core wire 50 may be in communication with one of the heat exchange components, and the first heat exchange flow channel 21 outside the negative electrode core wire 60 and the third heat exchange flow channel 14 inside the negative electrode core wire 60 may be in communication with the other heat exchange component. This arrangement can separate the cooling circuit of the positive electrode core wire 50 from the cooling circuit of the negative electrode core wire 60, and can reduce the probability of short-circuiting of the electric passing cooling medium, thereby improving the electric safety of the cable 100, and this arrangement is advantageous in improving the cooling effect of the cooling liquid.

The cable 100 of the application can realize great light weight, the reduction range can reach 80%, and the use is convenient for users.

The cable 100 of the present application can achieve a substantial reduction in outer diameter, up to 70%.

Claims (10)

1. A cable, comprising:

the core wire is provided with a conductor and a first insulating layer, and the first insulating layer is sleeved on the outer side of the conductor;

the first heat exchange pipeline is sleeved outside the core wire and forms a first heat exchange flow passage together with the first insulating layer, and a heat exchange medium is arranged in the first heat exchange flow passage.

2. The cable of claim 1, wherein the core wire and the first heat exchange pipeline are plural, and the plural core wires and the plural first heat exchange pipelines are in one-to-one correspondence.

3. The cable of claim 2, further comprising: the heat exchange assembly is communicated with the first heat exchange flow channel and is suitable for driving the heat exchange medium in the first heat exchange flow channel to flow.

4. A cable according to claim 3, wherein there are a plurality of said heat exchange assemblies, at least two of said first heat exchange flow passages each communicating with a different one of said heat exchange assemblies.

5. The cable of any one of claims 1-4, further comprising: the second heat exchange pipeline is used for exchanging heat with the core wire, the second heat exchange pipeline defines a second heat exchange flow passage, and the second heat exchange flow passage is internally suitable for being provided with the heat exchange medium.

6. The cable of claim 5, wherein the second heat exchange line is disposed between at least two adjacent first heat exchange lines.

7. The cable of claim 1, wherein the core wire and the first heat exchange pipeline are multiple, the core wires form multiple core wire groups, and the first heat exchange pipeline is sleeved outside each core wire group.

8. The cable of claim 7, wherein each of the core wire groups has a filler about which a plurality of the core wires of each of the core wire groups are disposed in a circumferential direction of the filler, the filler supporting a corresponding plurality of the core wires.

9. The cable of claim 8, wherein the core is configured as the filler.

10. The cable according to claim 1, characterized in that a third heat exchange flow channel is formed in the conductor, the inner wall of which third heat exchange flow channel is provided with a second insulating layer, the third heat exchange flow channel being internally adapted to be provided with the heat exchange medium.