Novel heat dissipation cable

Abstract

The invention provides a novel heat dissipation cable which comprises a wrapping layer, the wrapping layer comprises a solid half sleeve and a hollow half sleeve, the solid half sleeve and the hollow half sleeve form a pipe shape in an enclosing mode, the hollow half sleeve is located above the solid half sleeve, and a hollow cavity is formed in the hollow half sleeve; the cable also comprises a plurality of cable core wires, and the wrapping layer is sleeved outside all the cable core wires. The cable further comprises an inner core shaft, all the cable core wires are arranged outside the inner core shaft in a surrounding mode, the inner core shaft is further fixedly connected with a first radiation shaft extending towards the hollow half sleeve, and the first radiation shaft extends into the hollow cavity and is further fixedly connected with a first supporting plate abutting against the inner wall, away from the inner core shaft, of the hollow cavity. The wrapping layer is further provided with a plurality of pairs of inlets and outlets which are communicated with the hollow cavity and located on the two sides of the first radiation axis. The heat dissipation cable solves the problem that a heat dissipation cable in the prior art cannot be used on a new energy automobile.

Description

Technical Field

[0001] The present invention relates to the technical field of cables for new energy vehicles, and in particular to a new type of heat-dissipating cable. Background Art

[0002] New energy vehicles generally use ternary lithium or lithium iron phosphate batteries as power sources, and achieve efficient operation through electric drive, with advantages such as high environmental protection efficiency, low usage cost, and high operating efficiency. During the production and manufacturing of new energy vehicles, cables are required to achieve the electrical connection of the electric drive system. During the operation of new energy vehicles, the cables will inevitably generate heat, especially in summer when the ambient temperature is relatively high. Therefore, there are special requirements for the cables to have good heat dissipation performance. However, some heat-dissipating cables in the prior art are not directly used in the production and manufacturing of new energy vehicles. For example, a liquid-cooled heat-dissipating cable provided by the invention with the application publication number CN 118366719 A includes an insulating outer sheath, a plurality of signal transmission lines, a plurality of power lines, a PE cable, an oil supply pipe, and at least two liquid-cooled heat-dissipating spiral metal transmission copper cable structures. The plurality of signal transmission lines, the plurality of power lines, the PE cable, the oil supply pipe, and at least two liquid-cooled heat-dissipating spiral metal transmission copper cable structures are all arranged in the insulating outer sheath. At least two liquid-cooled heat-dissipating spiral metal transmission copper cable structures are arranged in the insulating outer sheath and are used for signal transmission and heat dissipation. The oil supply pipe is used to supply liquid-cooled oil to the liquid-cooled heat-dissipating spiral metal transmission copper cable structures. This invention has the advantages of good heat dissipation effect, can reduce heat generation, longer overall service life, and higher safety. If directly applied to new energy vehicles, an oil supply structure needs to be added, which requires the structure of the new energy vehicle to be optimized again, and at the same time increases the usage and maintenance costs. Summary of the Invention

[0003] Aiming at the deficiencies in the prior art, the present invention provides a new type of heat-dissipating cable, which solves the problem that the heat-dissipating cables in the prior art cannot be used in new energy vehicles.

[0004] According to an embodiment of the present invention, a new type of heat dissipation cable includes a wrapping layer, the wrapping layer includes a solid half sleeve and a hollow half sleeve enclosed with the solid half sleeve to form a tube, the hollow half sleeve is located above the solid half sleeve and a hollow cavity is arranged in the hollow half sleeve; it also includes a plurality of cable cores and the wrapping layer is arranged outside all the cable cores; it also includes an inner core shaft, all the cable cores are arranged around the inner core shaft, and the inner core shaft is also fixedly connected to a first radiation shaft extending to the hollow half sleeve, the first radiation shaft extends into the hollow cavity and is also fixedly connected to a first support plate that is against the inner wall of the hollow cavity away from the inner core shaft; the wrapping layer is also provided with a plurality of pairs of inlets and outlets connected to the hollow cavity and located on both sides of the first radiation shaft. The inner core shaft and the first radiation shaft can be used to conduct the heat generated by the cable core to the hollow cavity, and then dissipate it outward through the inlet and outlet, so that the new type of heat dissipation cable provided can finally achieve a good heat dissipation effect, and the use on new energy vehicles has little impact on the structure of the new energy vehicles, and will not increase a lot of maintenance work, and the use and maintenance costs are low, which solves the problem that the heat dissipation cable in the prior art cannot be used on new energy vehicles.

[0005] Furthermore, the cross section of the hollow cavity is arc-shaped, both ends of the arc of the hollow cavity extend downward and the two ends are connected to the outside through multiple channels respectively, and several pairs of inlets and outlets are located above the channels.

[0006] Furthermore, a plurality of partitions are fixedly arranged in the hollow cavity, and the partitions are fixed to the middle sections of the upper and lower walls of the hollow cavity.

[0007] Furthermore, one end of the first support plate is embedded in one side of the partition plate, and the other end is fixed to the first radiation axis.

[0008] Furthermore, a lining half sleeve is fixedly arranged in the solid half sleeve.

[0009] Furthermore, the inner core shaft is also fixedly connected to a pair of second radiation shafts symmetrically arranged on both sides of the first radiation shaft, and the ends of the two second radiation shafts away from the inner core shaft are also fixedly connected to a second support plate that abuts against the inner liner half sleeve.

[0010] Furthermore, the lining half sleeve is also fixedly connected with limit plates respectively located in the two channels.

[0011] Furthermore, two ends of the liner half sleeve are respectively fixedly connected with a plurality of connecting sections, and one connecting section is respectively fixedly extended into a channel adjacent thereto and is fixedly connected with a limiting plate.

[0012] Furthermore, the channel is an arc-shaped structure extending obliquely downward, and the lower end is away from the inner core axis.

[0013] Furthermore, a first radiation axis and two second radiation axes are equidistantly arranged around the inner core axis and form a group, and a plurality of groups of first radiation axes and second radiation axes are equidistantly arranged on the inner core axis along its length direction.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The novel heat dissipation cable provided has a hollow cavity arranged at the upper part, which can communicate with the outside through the inlets and outlets on both sides. The heat generated by the cable core wire wrapped in the wrapping layer can be guided to the hollow cavity through the first radiation shaft and then dissipated to the outside, thus achieving a good heat dissipation effect. At the same time, when applied to the production and manufacturing of new energy vehicles, no additional matching structure needs to be set, so the impact on the structure of the new energy vehicle itself is small, and a large amount of additional maintenance work will not be added. The use and maintenance costs are both relatively low, solving the problem that the heat dissipation cable in the prior art cannot be used in new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional structure diagram of the novel heat dissipation cable according to an embodiment of the present invention (the cable core wire is not shown);

[0017] Figure 2 It is a schematic diagram of a partial structure according to an embodiment of the present invention;

[0018] Figure 3 is Figure 1 a schematic enlarged view of a partial structure at A in;

[0019] Figure 4 is Figure 2 a schematic enlarged view of a partial structure at B in;

[0020] In the above-mentioned drawings:

[0021] cable core wire 1, wrapping layer 2, solid half sleeve 3, hollow half sleeve 4, hollow cavity 5, inner core shaft 6, first radiation shaft 7, first support plate 8, inlet and outlet 9, inner lining half sleeve 10, second radiation shaft 11, second support plate 12, channel 13, partition 14, convex column 15, limiting piece 16. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] In an exemplary embodiment, such as Figure 1 , 2As shown, this embodiment provides a new type of heat dissipation cable, which includes multiple cable cores 1 and a wrapping layer 2, the wrapping layer 2 includes a solid half sleeve 3 and a hollow half sleeve 4 enclosed by the solid half sleeve 3 to form a tube, the hollow half sleeve 4 is located above the solid half sleeve 3 and a hollow cavity 5 is arranged in the hollow half sleeve 4; the wrapping layer 2 is sleeved outside all the cable cores 1; the new type of heat dissipation cable also includes an inner core shaft 6, all the cable cores 1 are arranged around the inner core shaft 6, and the inner core shaft 6 is also fixedly connected to a first radiation axis 7 extending to the hollow half sleeve 4, the first radiation axis 7 extends into the hollow cavity 5 and is also fixedly connected to a first support that abuts against the inner wall of the hollow cavity 5 away from the inner core shaft 6. plate 8; the wrapping layer 2 is also provided with a plurality of pairs of inlets and outlets 9 which are connected to the hollow cavity 5 and are located on both sides of the first radiation axis 7, and the inlets and outlets 9 are provided to connect the inside and outside of the hollow cavity 5, and the heat generated by the cable core wire 1 wrapped in the wrapping layer 2 can be guided to the hollow cavity 5 through the first radiation axis 7, and then dissipated to the outside, thereby achieving a good heat dissipation effect. At the same time, the new heat dissipation cable provided by the present invention can be used on new energy vehicles without additional adjustment and optimization of the structure of the new energy vehicle, and will not increase a large amount of maintenance work. The use and maintenance costs are low, which solves the problem that the heat dissipation cable in the prior art cannot be used on new energy vehicles. The problem of use; more specifically, the upper part of the new heat dissipation cable is provided with a hollow cavity 5, and a first support plate 8 is arranged inside to provide support, so that the hollow cavity 5 is not easy to collapse during and after the installation of the new heat dissipation cable, and the first support plate 8 is connected to the inner core shaft 6 through the first radiation axis 7, so that the inner core shaft 6 indirectly provides support for the first support plate 8, so that the first support plate 8 can provide more stable support; further, a lining half sleeve 10 is fixedly arranged in the solid half sleeve 3 arranged in the lower part, and the lining half sleeve 10 is used to improve the strength of the solid half sleeve 3, so that the overall wrapping layer 2 has better stability, more detailed Yes, the inner core shaft 6 is also fixedly connected to a pair of second radiation axes 11 symmetrically arranged on both sides of the first radiation axis 7, and the ends of the two second radiation axes 11 facing away from the inner core shaft 6 are also fixedly connected to a second support plate 12 that abuts against the inner lining half sleeve 10. The second support plate 12 is similar to the first support plate 8, so that the inner lining half sleeve 10 can be supported more stably, and the overall new heat dissipation cable has better mechanical stability; the first radiation axis 7 and the second radiation axis 11 can be equidistantly arranged around, so that the first support plate 8 and the second support plate 12 are evenly surrounded outside the inner core shaft 6, which can provide a more balanced support effect during the installation of the new heat dissipation cable.

[0025] like Figure 1-3As shown, the cross-section of the hollow cavity 5 is arc-shaped, and the first support plate 8 is also arc-shaped, which can better support the hollow cavity 5. The arc-shaped ends of the hollow cavity 5 extend downward, that is, both sides of the hollow cavity 5 extend downward respectively and surround the cable core 1, so that a larger range of the cable core 1 can be covered. More specifically, the thickness of the hollow half-sleeve 4 near the cable core 1 in the hollow cavity 5 is relatively thin, and the heat generated by the cable core 1 can also migrate to the hollow cavity 5 through the thinner part, thus achieving a better heat dissipation effect. The two ends of the arc-shaped structure of the hollow cavity 5 are respectively communicated with the outside through a plurality of channels 13. A number of pairs of inlets and outlets 9 are located above the channels 13. The inlets and outlets 9 are higher and the channels 13 are lower. The arranged channels 13 also enable the hollow cavity 5 to communicate with the outside more smoothly, playing a better heat dissipation role. At the same time, the channels 13 are arc-shaped structures extending obliquely downward, and the lower end deviates from the inner core shaft 6, so that the heat in the hollow cavity 5 can flow more smoothly obliquely downward, and thus be more efficiently exported to the outside. Especially when the new type of heat dissipation cable is installed under the chassis of a new energy vehicle, with the new energy vehicle moving forward, there will be high-speed air flow below the new type of heat dissipation cable. The air pressure below the channels 13 is low, so that the air in the hollow cavity 5 can be exported faster. At the same time, the inlets and outlets 9 above can supply air to enter and quickly update the air in the hollow cavity 5, so as to make the heat dissipation effect better.

[0026] As Figure 1-4 shown, in a further solution, a plurality of partition plates 14 are fixedly arranged in the hollow cavity 5. The partition plates 14 are fixed to the middle sections of the upper and lower two wall surfaces of the hollow cavity 5. The partition plates 14 are in the hollow cavity 5, specifically arranged at the highest position in the middle section. The partition plates 14 are also arc-shaped, and the two ends extend downward, but the partition plates 14 do not completely separate the hollow cavity 5. The hollow cavity 5 is communicated on both sides of the partition plates 14. The partition plates 14 also play a role in supporting the hollow cavity 5. At the same time, one end of the first support plate 8 is embedded in one side of the partition plate 14, and the other end is fixed to the first radiation shaft 7. In this way, the partition plates 14 and the first radiation shaft 7 jointly provide support for the first support plate 8, so that the first support plate 8 can be set longer and play a better support role. More specifically, one first radiation shaft 7 and two second radiation shafts 11 are arranged equidistantly around the inner core shaft 6 and form a group. Along the length direction of the inner core shaft 6, multiple groups of first radiation shafts 7 and second radiation shafts 11 are arranged equidistantly, and the distance between each group is equal. In this way, support can be provided throughout the new type of heat dissipation cable. At the same time, the arranged inlets and outlets 9, channels 13 and partition plates 14 are also correspondingly arranged in multiple groups, playing a heat dissipation effect throughout the new type of heat dissipation cable and also having better stability.

[0027] As Figure 1-4As shown, in a more detailed solution, the second radiation axis 11 provided can also conduct heat to the inner lining half sleeve 10. The inner lining half sleeve 10 provided is also an arc-shaped structure like the solid half sleeve 3, which can disperse heat on a wider arc surface and then dissipate it outward through the outer wall of the solid half sleeve 3. Furthermore, the second support plate 12 is also arc-shaped, which can more efficiently support the inner lining half sleeve 10 and better conduct heat to the inner lining half sleeve 10. In a more detailed solution, some convex columns 15 protruding outward to the outside of the solid half sleeve 3 can also be fixed on the outer wall of the inner lining half sleeve 10. The end of the convex column 15 facing away from the inner lining half sleeve 10 is connected to the outside, so that the heat on the inner lining half sleeve 10 can be more efficiently exported outward, achieving a better heat dissipation effect. Furthermore, the two sides of the inner lining half sleeve 10 extend upward in an arc shape and respectively extend into the two channels 13. In this way, the heat on the inner lining half sleeve 10 can also be diverted into the channels 13 and then exported outward. Even more detailed is that the inner lining half sleeve 10 is also fixedly connected with limit pieces 16 respectively located in the two channels 13. The limit pieces 16 are closely attached to the inner wall of the channels 13 located below. The limit pieces 16 are also arc-shaped like the channels 13. The limit pieces 16 make the two end parts of the inner lining half sleeve 10 more stable. At the same time, the limit pieces 16 can also play a guiding role for the air flow in the channels 13. At the same time, the heat of the inner lining half sleeve 10 can also be indirectly dissipated into the channels 13 more efficiently through the limit pieces 16 and then dissipated to the outside more efficiently through the channels. More detailed is that the support structures such as the inner core shaft 6, the first radiation axis 7, the inner lining half sleeve 10, the second radiation axis 11, and the convex column 16 in this solution can be made of a metal with better thermal conductivity, such as copper. At the same time, the cable core 1 is a conductive cable or an optical fiber cable wrapped with an insulating rubber sheath. Multiple cable cores 1 are evenly distributed between adjacent second radiation axes 11.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A novel heat dissipation cable, characterized in that, It includes a wrapping layer, and the wrapping layer includes a solid semi-sleeve and a hollow semi-sleeve that together with the solid semi-sleeve encloses a tubular shape. The hollow semi-sleeve is located above the solid semi-sleeve and a hollow cavity is provided inside the hollow semi-sleeve; it further includes a plurality of cable cores and the wrapping layer is sleeved outside all the cable cores; it further includes an inner core shaft, and all the cable cores are arranged around the outer side of the inner core shaft, and the inner core shaft is further fixedly connected with a first radiation shaft extending towards the hollow semi-sleeve. The first radiation shaft extends into the hollow cavity and is further fixedly connected with a first support plate that abuts against the inner wall of the hollow cavity facing away from the inner core shaft. A plurality of pairs of inlets and outlets that are communicated with the hollow cavity and are located on both sides of the first radiation shaft are further provided on the wrapping layer.

2. The novel heat dissipation cable according to claim 1, characterized in that, The cross-section of the hollow cavity is arc-shaped, and the arc-shaped two ends of the hollow cavity extend downward and the two end parts are respectively communicated with the outside through a plurality of channels. A plurality of pairs of the inlets and outlets are located above the channels.

3. The novel heat dissipation cable according to claim 2, wherein A plurality of partition plates are further fixedly arranged in the hollow cavity, and the partition plates are fixed to the middle sections of the upper and lower two wall surfaces of the hollow cavity.

4. The novel heat dissipation cable according to claim 3, wherein, One end of the first support plate is embedded inside one side of the partition plate and the other end is fixed to the first radiation shaft.

5. The novel heat dissipation cable according to any one of claims 2-4, wherein A lining semi-sleeve is further fixedly arranged inside the solid semi-sleeve.

6. The novel heat-dissipating cable according to claim 5, wherein, The inner core shaft is further fixedly connected with a pair of second radiation shafts symmetrically arranged on both sides of the first radiation shaft, and the end parts of the two second radiation shafts facing away from the inner core shaft are further fixedly connected with second support plates that abut against the lining semi-sleeve.

7. The novel heat dissipation cable according to claim 5, wherein The lining semi-sleeve is further fixedly connected with limiting pieces respectively located in the two channels.

8. The novel heat dissipation cable according to claim 7, wherein Both ends of the lining semi-sleeve are respectively fixedly connected with a plurality of connecting sections, and one connecting section respectively fixedly extends into the channel close to it and is fixedly connected with the limiting piece.

9. The novel heat dissipation cable according to claim 8, wherein, The channel is an arc-shaped structure extending obliquely downward, and the lower end faces away from the inner core shaft.

10. The novel heat-dissipating cable according to claim 6, characterized in that, One first radiation shaft and two second radiation shafts are equidistantly arranged around the outer side of the inner core shaft and are a group, and multiple groups of the first radiation shaft and the second radiation shaft are equidistantly arranged along the length direction of the inner core shaft.

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