CN219832280U

CN219832280U - Cable, cable set and vehicle

Info

Publication number: CN219832280U
Application number: CN202320667677.5U
Authority: CN
Inventors: 郑鲁; 羊昊鹏; 潘东洋; 康海东
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-10-13
Anticipated expiration: 2033-03-24

Abstract

The utility model discloses a cable, a cable set and a vehicle, wherein the cable comprises: the insulation protection sleeve is provided with a first cavity, a second cavity and a third cavity; the first cavity, the second cavity and the third cavity are not communicated; the liquid cooling pipe is arranged in the first cavity, the first conductor is arranged in the second cavity, and the second conductor is arranged in the third cavity. The technical scheme provided by the utility model has the advantages of reducing the cable volume, thereby optimizing the wiring space in the vehicle.

Description

Cable, cable set and vehicle

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to a cable, a cable set and a vehicle.

Background

In the prior art, a high-voltage cable is used for connecting all component units of a whole vehicle high-voltage system, the battery pack capacity is transmitted to all loads through a high-voltage wire harness, and the power grid power is transmitted to the battery pack. The high-voltage wire harness is a connecting main body in a new energy automobile, and the cable and connectors at two ends can generate a large amount of heat in the electrifying process, so that the high-voltage cable and the connectors are required to dissipate heat in time.

At present, a round structure is adopted in the liquid cooling cable in the market, each conductor and the liquid cooling pipe are wrapped together to form a round cable structure with insulation protection surrounding, the positive/negative cable conductor, the PE cable and other signal wires are wrapped together by the round structure, the round structure is only suitable for charging harness products, is not suitable for common connecting harnesses, and has large structural space occupation ratio, so that the round structure is not suitable for spatial arrangement in a vehicle.

There is a need for improved cable constructions.

Disclosure of Invention

The embodiment of the utility model aims to provide a cable, a cable group and a vehicle, and the structure of the cable can solve the problem that the cable occupies a large space in the vehicle.

According to a first aspect of an embodiment of the present utility model, there is provided a cable comprising:

the insulation protection sleeve is provided with a first cavity, a second cavity and a third cavity;

the first cavity, the second cavity and the third cavity are not communicated;

the liquid cooling pipe is arranged in the first cavity, the first conductor is arranged in the second cavity, and the second conductor is arranged in the third cavity.

Optionally, the insulating protective sleeve is flat.

Optionally, the flat cross section is rectangular, diamond or trapezoid.

Optionally, the diameter of the first conductor is the same as the diameter of the second conductor.

Optionally, the thickness ranges between the first cavity and the second cavity and between the second cavity and the third cavity are all 0.8mm-1.2mm.

Optionally, the first conductor and the second conductor are both positive or negative.

According to a second aspect of the embodiment of the present utility model, there is provided a cable set including a plurality of the above-mentioned cables, wherein the first conductors and the second conductors in two adjacent cables are different poles.

Optionally, the adjacent two cables are arranged in a fitting way, and the liquid cooling pipes of the two cables correspond to the positions of the second conductor, the first conductor and the first conductor, and the second conductor and the liquid cooling pipe.

According to a third aspect of an embodiment of the present utility model, there is provided a vehicle comprising the cable described above.

According to a fourth aspect of an embodiment of the present utility model, there is provided a vehicle comprising the above-described cable set.

The cable has the technical effects that the size of the cable can be reduced by arranging the liquid cooling pipe, the first conductor and the second conductor in the insulating protection layer, so that the occupied space of the cable in a vehicle is reduced, and the weight is reduced.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

FIG. 1 is a schematic cross-sectional view of a cable in an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a cable according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a cable set according to an embodiment of the present utility model.

Reference numerals illustrate: a cable 100; a cable set 200; an insulating protective sleeve 1; a first cavity 11; a second cavity 12; a third cavity 13; a liquid cooling pipe 2; a first conductor 3; a second conductor 4.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

According to a first aspect of an embodiment of the present utility model, there is provided a cable 100 comprising an insulation protection sleeve 1, a liquid cooled tube 2, a first conductor 3 and a second conductor 4, the insulation protection sleeve 1 having a first cavity 11, a second cavity 12 and a third cavity 13; the first cavity 11, the second cavity 12 and the third cavity 13 are not communicated, the liquid cooling pipe 2 is arranged in the first cavity 11, the first conductor 3 is arranged in the second cavity 12, and the second conductor 4 is arranged in the third cavity 13.

As shown in fig. 1 and 2, the insulation protection sleeve 1 is provided with a first cavity 11, a second cavity 12 and a third cavity 13, wherein a non-communication structure is arranged among the first cavity 11, the second cavity 12 and the third cavity 13. The liquid-cooled tube 2 is arranged in a first cavity 11, the first conductor 3 is arranged in a second cavity 12, and the second conductor 4 is arranged in a third cavity 13.

As shown in fig. 1 and 2, in one embodiment, the first, second and third cavities 11, 12 and 13 may be arranged in sequence, such that the first conductor 3 is adjacent to the liquid-cooled tube 2 and the second conductor 4, respectively. The arrangement of the first conductor 3 adjacent to the second conductor 4 facilitates connection of the first conductor 3 and the second conductor 4 to an adjacent cable 100.

In another embodiment, the first cavity 11 is disposed between the second cavity 12 and the third cavity 13, the liquid cooling tube 2 is adjacent to the first conductor 3 and the second conductor 4, and the liquid cooling tube 2 can uniformly dissipate heat emitted by the first conductor 3 and the second conductor 4.

The two arrangement modes have the advantages and can be selected according to actual needs.

In the prior art, the conductor is usually a single-core conductor, and the diameter of the single-core conductor is large, so that the conductor is not conductive to heat dissipation. The first conductor 3 and the second conductor 4 are arranged, and the cable 100 with smaller wire diameter is adopted under the same current, so that the weight of the cable 100 is reduced, the weight of the whole vehicle is reduced, and the weight is reduced. And the space occupation ratio of the cable 100 can be reduced, and the arrangement space of the cable 100 in the vehicle can be raised. And the first conductor 3 and the second conductor 4 are provided, so that the heat dissipation area can be increased and the heat dissipation can be improved.

Further, the liquid cooling pipe 2 may be connected to a cooling system of a vehicle, and may cool the cable 100 during the power-on process, thereby improving the overcurrent capacity of the cable 100.

Further, the first conductor 3 and the second conductor 4 are respectively stranded by copper wires and then bundled, and are called as stable circular cylinders after stranding, and the stranded first conductor 3 and second conductor 4 are not easy to disperse and are not easy to disperse due to the influence of manufacturing, transportation and arrangement environments.

In a preferred embodiment, the liquid cooling tube 2 is made of polytetrafluoroethylene, and the polytetrafluoroethylene has the characteristics of excellent chemical stability, corrosion resistance, strong sealing performance and good insulativity, is suitable for cables, and can ensure that liquid in the liquid cooling tube cannot leak out and ensure electrical safety.

Optionally, the insulation protection sleeve 1 is flat.

Optionally, the flat cross section is rectangular, diamond or trapezoid.

As shown in fig. 1 and 2, the insulating protective cover 1 is provided in a flat shape, which is advantageous in connecting the positive electrode cable 100 and the negative electrode cable 100 and reducing the occupied space of the cable 100, thereby optimizing the wiring space and achieving weight saving.

The cross-sectional shape of the insulating protective sleeve 1 may be rectangular, diamond or trapezoid, so long as three cavities can be arranged in the insulating protective sleeve. In a preferred embodiment, fig. 2 shows a cross section of the insulation protection sleeve 1, wherein the insulation protection sleeve 1 has a rectangular cross section and two width sides in the longitudinal direction are arc-shaped. As shown in fig. 2, the first cavity, the second cavity and the third cavity are arranged side by side in the length direction of the cross section, wherein the shapes of the first cavity, the second cavity and the third cavity are preferably circular, so that two width sides in the length direction of the cross section of the insulation protecting sleeve 1 are arc-shaped, and the arc is matched with the circles of the first cavity and the third cavity, so that the size of the insulation protecting sleeve 1 can be reduced under the condition that the sizes of the first cavity, the second cavity and the third cavity are unchanged, and the occupied space of the cable 100 is reduced.

Further, the cable 100 is flat, and when the cable 100 and the terminals of the battery are welded, the cable 100 has a smaller diameter than the single-core cable 100 with the same wire diameter, i.e. the cable is closer to the height after welding, so that the risk of wire breakage during welding can be reduced.

Optionally, the diameter of the first conductor 3 is the same as the diameter of the second conductor 4.

Further, the diameters of the first conductor 3 and the second conductor 4 are the same, so that the current can be evenly distributed in the use process, and the electricity safety is ensured.

Optionally, the thickness ranges between the first cavity 11 and the second cavity 12, and between the second cavity 12 and the third cavity 13 are all 0.8mm-1.2mm.

Further, the thickness range between the first cavity and the second cavity and between the second cavity and the third cavity is 0.8mm-1.2mm, so that the liquid cooling pipe 2 arranged in the first cavity, the first conductor 3 arranged in the second cavity and the second conductor 4 arranged in the third cavity are separated by the insulating protective sleeve 1, the first conductor 3 cannot be influenced by the liquid cooling pipe 2 and the second conductor 4, and the second conductor 4 cannot be influenced by the liquid cooling pipe 2 and the first conductor 3, so that the electricity utilization safety in the power-on process is ensured.

In the embodiment in which the first cavity 11, the second cavity 12 and the third cavity 13 may be arranged in sequence, the thickness between the second cavity and the third cavity is 1mm, so that the overall size of the insulation protection sleeve 1 may not be increased under the condition that the first conductor 3 and the second conductor 4 do not affect each other. The thickness between the first cavity 11 and the second cavity 12 can be 0.8mm, and the thickness between the first cavity 11 and the second cavity 12 is reduced, so that the liquid cooling tube 2 is beneficial to radiating heat for the first conductor 3 and the second conductor 4.

In the embodiment that the first cavity 11 is arranged between the second cavity 12 and the third cavity 13, the thicknesses between the first cavity 11 and the second cavity 12 and between the first cavity 13 and the third cavity 13 are all 0.8mm, the liquid cooling tube 2 is convenient for radiating heat for the first conductor 3 and the second conductor 4 which are arranged on two sides of the liquid cooling tube 2, the first conductor 3 and the second conductor 4 are not adjacent, and the electricity safety in the electrifying process is also ensured.

Alternatively, the first conductor 3 and the second conductor 4 are both positive or negative.

In the same cable 100, the first conductor 3 and the second conductor 4 are identical to the positive electrode or the negative electrode, so that a positive electrode cable 100 and a negative electrode cable 100 are formed, and the positive electrode cable 100 is connected with the negative electrode cable 100. The positive electrode cable 100 is connected to the negative electrode of the battery, and the negative electrode cable 100 is connected to the positive electrode of the battery, so that the battery 100 can be charged or discharged.

According to a second aspect of the embodiment of the present utility model, there is provided a cable set 200, including a plurality of the above-mentioned cables 100, wherein the first conductors 3 and the second conductors 4 in two adjacent cables 100 are different poles.

As shown in fig. 3, the cable assembly 200 includes a plurality of cables 100, wherein the first conductor 3 and the second conductor 4 of two adjacent cables 100 have different poles, that is, the first conductor 3 and the second conductor 4 of one cable 100 have positive poles, and the first conductor 3 and the second conductor 4 of the other cable 100 have negative poles, so that the two cables 100 can be connected together to form the cable assembly 200. In the present utility model, there are at least two cable assemblies 200, and the number of cable assemblies 200 is even, so that the cable assemblies 200 are connected to the battery.

Optionally, two adjacent cables 100 are arranged in a fitting manner, and the liquid cooling pipes 2 and the second conductors 4 of the two cables 100, the first conductors 3 and the first conductors 3, and the second conductors 4 and the liquid cooling pipes 2 are corresponding in position.

As shown in fig. 3, two adjacent cables 100 can be arranged in parallel and in a fitting manner, no redundant space is wasted between the wire harnesses, space utilization rate is provided, the possibility that the wire harnesses rub against other components due to insufficient arrangement space is reduced, and damage to the cables 100 by the other components is reduced.

As shown in fig. 3, the positive electrode cable 100 is staggered with respect to the negative electrode cable 100. In the embodiment in which the first cavity 11, the second cavity 12 and the third cavity 13 may be sequentially arranged, the liquid cooling tube 2 of the positive electrode cable 100 may cool the first conductor 3 of the positive electrode cable 100 and simultaneously cool the second conductor 4 of the negative electrode cable 100 during cooling, so as to avoid that the second conductor 4 of the negative electrode cable 100 is far from the liquid cooling tube 2 of the negative electrode cable 100, and heat dissipation is insufficient. The liquid-cooled tube 2 of the negative electrode cable 100 may cool the first conductor 3 of the negative electrode cable 100 and may cool the second conductor 4 of the positive electrode cable 100.

Further, the liquid cooling pipes 2 are respectively arranged on the positive cable 100 and the negative cable 100, so that a cooling system of a vehicle can be connected at the same time, cooling liquid is led into the connector and led out, the cable 100 is cooled respectively, the connector is cooled, and the overcurrent capacity of the cable 100 and the connector is improved. Wherein the connector is a connecting member connecting the positive cable 100 and the negative cable 100.

According to a third aspect of an embodiment of the present utility model, there is provided a vehicle comprising the cable 100 described above.

The cable 100 of the present utility model may be used in a vehicle to provide a connection for a battery of the vehicle. When the required connection lines are short, only the cable 100 is required to achieve the connection relationship.

According to a fourth aspect of an embodiment of the present utility model, there is provided a vehicle comprising the cable set 200 described above.

The cable assembly 200 of the present utility model may be used in a vehicle to provide a connection for a battery of the vehicle. When the connection lines required are long, the cable set 200 is required to achieve the connection relationship.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. A cable, comprising:

the first cavity, the second cavity and the third cavity are not communicated;

2. The cable of claim 1, wherein the insulation protective jacket is flat.

3. The cable of claim 2, wherein the flat cross-section is rectangular, diamond or trapezoidal.

4. The cable of claim 1, wherein the diameter of the first conductor is the same as the diameter of the second conductor.

5. The cable of claim 1, wherein the thickness between the first cavity and the second cavity, and between the second cavity and the third cavity are each in the range of 0.8mm-1.2mm.

6. The cable of claim 1, wherein the first conductor and the second conductor are both positive or negative.

7. A cable set comprising a plurality of cables according to any one of claims 1-6, wherein said first conductors and said second conductors of two adjacent cables are of different polarity.

8. The electrical cable assembly of claim 7, wherein adjacent two of the electrical cables are disposed in registry with each other, and wherein the liquid cooled tubes of two of the electrical cables correspond to the locations of the second conductor, the first conductor and the first conductor, and the second conductor and the liquid cooled tube.

9. A vehicle comprising a cable according to any one of claims 1-6.

10. A vehicle comprising a cable set according to any one of claims 7-8.