A new energy vehicle cable

Abstract

This utility model discloses a new energy vehicle cable, including a thermally conductive skeleton, a charging cable, an outer filling layer, an outer thermally conductive layer, and a sheath. The thermally conductive skeleton extends along its length and includes a base and partitions extending from the wall of the base. Adjacent partitions form a positioning groove. The base has a hollow base groove, which is used to fill or cover a heat-dissipating substrate. The charging cable is disposed within the positioning groove. The outer filling layer is used to fill the positioning groove and fix the charging cable. The thermally conductive skeleton and the outer filling layer form an inner core. The outer thermally conductive layer covers the outer peripheral wall of the inner core. The sheath has at least two layers and covers the outer peripheral wall of the outer thermally conductive layer. The thermally conductive skeleton is first injection molded, wherein the base groove is located at the base of the thermally conductive skeleton. The base groove can be integrally molded or filled with heat-dissipating substrate later. The base groove is provided with braided thermally conductive metal strips to improve the heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of cables, and in particular to a new energy vehicle cable. Background Technology

[0002] The voltage resistance, flexibility, and shielding effect of cables are essential conditions for supporting the high-voltage power transmission requirements of new energy vehicles. However, with the design of high-voltage transmission, cable heat generation has also become a significant issue. The main existing methods for solving cable heat dissipation are passive liquid cooling or active cooling, but these processes and production costs are relatively high.

[0003] For example, Chinese patent CN202410382476.X uses liquid cooling to achieve active heat dissipation. Utility Model Content

[0004] The main purpose of this utility model is to propose a new energy vehicle cable, which aims to design a cable structure to solve the heat dissipation problem of existing new energy vehicle cables, while its production process is relatively simple and stable.

[0005] To achieve the above objectives, this utility model proposes a new energy vehicle cable, comprising:

[0006] A thermally conductive frame extends along its length and includes a base and partitions extending from the wall of the base, with adjacent partitions forming positioning grooves.

[0007] The base is provided with a hollow base groove, which is used to fill or cover a heat dissipation substrate;

[0008] A charging cable, wherein the charging cable is disposed in a positioning groove;

[0009] An outer filling layer is used to fill the positioning groove and fix the charging cable, and the thermally conductive skeleton and the outer filling layer form an inner core;

[0010] An outer thermally conductive layer, which covers the outer peripheral wall of the inner core;

[0011] The sheath has at least two layers and covers the outer peripheral wall of the outer heat-conducting layer.

[0012] In practical design, the heat-conducting skeleton is first injection molded. The heat-conducting skeleton has a base groove at the base, which can be integrally molded or filled with heat-dissipating substrate afterwards.

[0013] One preferred embodiment involves incorporating woven, heat-conducting metal strips to improve heat dissipation. When the material is rigid, it is preferably integrally molded during extrusion molding.

[0014] When the material is flexible (such as thermally conductive silicone or thermally conductive liquid), a post-filling method can be used to achieve a heat dissipation structure.

[0015] After the heat-conducting skeleton is formed, the charging cable is installed in the positioning groove, and then the outer filling layer is extruded into the positioning groove (the inner core is flat). Of course, the positioning groove can also be extended (the formed inner core is preferably round).

[0016] Therefore, when the temperature of the charging cable is high, it first dissipates heat through the heat-conducting skeleton and heat-dissipating substrate. Furthermore, an outer heat-conducting layer is wrapped around the outer wall of the inner core to achieve active heat dissipation of the heat-conducting skeleton, thereby achieving heat dissipation in the radial direction.

[0017] The partition design also reduces heat accumulation between adjacent charging cables, further improving charging safety and avoiding the problem of heat accumulation points between adjacent charging cables. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the present invention;

[0019] Figure 2 This is an exploded view of the present invention.

[0020] In the picture,

[0021] 1 is the heat-conducting frame, 11 is the base, 12 is the partition, and 13 is the positioning groove.

[0022] 2 represents the base groove, and 20 represents the heat dissipation substrate.

[0023] 3 is the charging cable.

[0024] 4 is the outer heat-conducting layer.

[0025] 5 is the protective sleeve.

[0026] 6 represents the outer filler layer, and 60 represents the data cable. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0028] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] like Figures 1 to 2 As shown, a new energy vehicle cable includes:

[0031] A heat-conducting frame 1 extends along its length and includes a base 11 and partitions 12 extending from the wall of the base 11. Adjacent partitions 12 form positioning grooves 13.

[0032] The base 11 is provided with a hollow base groove 2, which is used to fill or cover the heat dissipation substrate 20;

[0033] Charging cable 3, wherein the charging cable 3 is disposed in the positioning groove 13;

[0034] The outer filling layer 6 is used to fill the positioning groove 13 and fix the charging cable 3. The heat-conducting skeleton 1 and the outer filling layer 6 form the inner core.

[0035] The outer thermal conductive layer 4 covers the outer peripheral wall of the inner core;

[0036] Sheath 5, which has at least two layers, covers the outer peripheral wall of the outer heat-conducting layer 4.

[0037] In the actual design, the heat-conducting skeleton 1 is first injection molded. The heat-conducting skeleton 1 has a base groove 2 at the base 11. The base groove 2 can be integrally molded or filled with heat-dissipating substrate 20 afterwards.

[0038] One preferred embodiment involves incorporating woven, heat-conducting metal strips to improve heat dissipation. When the material is rigid, it is preferably integrally molded during extrusion molding.

[0039] When the material is flexible (such as thermally conductive silicone or thermally conductive liquid), a post-filling method can be used to achieve a heat dissipation structure.

[0040] After the heat-conducting frame 1 is formed, the charging cable 3 is installed in the positioning groove 13, and then the outer filling layer 6 is extruded into the positioning groove 13 (the inner core is flat). Of course, the positioning groove 13 can also be extended (the formed inner core is preferably round).

[0041] Therefore, when the temperature of the charging cable 3 is high, it first dissipates heat through the heat-conducting frame 1 and the heat dissipation substrate 20. Furthermore, the outer heat-conducting layer 4 is wrapped around the outer wall of the inner core, thereby achieving active heat dissipation of the heat-conducting frame 1 and thus achieving heat dissipation in the radial direction.

[0042] The partition 12 also reduces heat accumulation when heat is generated between adjacent charging cables 3, further improving charging safety and avoiding the problem of heat accumulation points between adjacent charging cables 3.

[0043] Specifically, the heat dissipation substrate 20 is a braided metal strip or graphene strip, wherein the metal strip can be a metal with good thermal conductivity such as copper strip or aluminum strip. At the same time, the braided metal strip or graphene strip can improve the overall flexibility of the cable, and also provide better tensile and bending resistance.

[0044] In this embodiment of the invention, the heat dissipation substrate 20 is aerogel or heat dissipation silicone.

[0045] Specifically, the positioning groove 13 is arc-shaped, thus adapting to the charging cable 3.

[0046] In this embodiment of the invention, the outer filling layer 6 is disposed within or extends out of the positioning groove 13. Specifically, the cross-section of the inner core is flat or circular, thereby forming a predetermined cell shape.

[0047] In this embodiment of the invention, the thermally conductive skeleton 1 is composed of silicone rubber and heat dissipation particles dispersed in the silicone rubber.

[0048] Specifically, silicone rubber has good heat dissipation properties.

[0049] Specifically, the heat dissipation particles are boron nitride or polydopamine-modified graphene, thereby improving the active heat dissipation effect of the heat-conducting skeleton 1. Specifically, the thermal conductivity can reach 1.9 to 2.5 W / (m·K).

[0050] In this embodiment of the utility model, the outer thermal conductive layer 4 is a braided graphene thread, and the outer thermal conductive layer 4 is distributed in a spiral shape, thereby increasing the heat dissipation area and also improving the bonding strength between the sheath 5 and the outer thermal conductive layer 4.

[0051] Specifically, the inner diameter of the positioning groove 13 is not uniform, and the positioning groove 13 is used to install the charging cable 3 or the data cable.

[0052] The data cable and the outer filling layer 6 are integrally formed. Specifically, the data cable can be set or filled according to Hong Changchun's needs. Furthermore, the positioning groove 13 can be designed in different sizes according to the actual size of the charging cable 3, so as to meet the existing production needs. Compared with the existing liquid cooling structure, its production is simpler.

[0053] Furthermore, a coating, such as a nano-coating or a carbon fiber coating, can be applied to the positioning groove 13 to further improve the heat dissipation effect.

[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A new energy vehicle cable, characterized in that, include: A thermally conductive frame extends along its length and includes a base and partitions extending from the wall of the base, with adjacent partitions forming positioning grooves. The base is provided with a hollow base groove, which is used to fill or cover a heat dissipation substrate; A charging cable, wherein the charging cable is disposed in a positioning groove; An outer filling layer is used to fill the positioning groove and fix the charging cable, and the thermally conductive skeleton and the outer filling layer form an inner core; An outer thermally conductive layer, which covers the outer peripheral wall of the inner core; The sheath has at least two layers and covers the outer peripheral wall of the outer heat-conducting layer.

2. The new energy vehicle cable as described in claim 1, characterized in that: The heat dissipation substrate is a woven metal strip or a graphene strip.

3. The new energy vehicle cable as described in claim 1, characterized in that: The heat dissipation substrate is aerogel or heat dissipation silicone.

4. The new energy vehicle cable as described in claim 1, characterized in that: The positioning groove is arc-shaped.

5. The new energy vehicle cable as described in claim 1, characterized in that: The outer filling layer is disposed within the positioning groove or extends out of the positioning groove.

6. The new energy vehicle cable as described in claim 5, characterized in that: The cross-section of the inner core is flat or circular.

7. The new energy vehicle cable as described in claim 5, characterized in that: The thermally conductive framework consists of silicone rubber and heat-dissipating particles dispersed in the silicone rubber.

8. The new energy vehicle cable as described in claim 7, characterized in that: The heat dissipation particles are boron nitride or polydopamine-modified graphene.

9. The new energy vehicle cable as described in claim 1, characterized in that: The outer thermal conductive layer is a braided graphene wire, and the outer thermal conductive layer is distributed in a spiral shape.

10. The new energy vehicle cable as described in claim 5, characterized in that: The inner diameters of the positioning slots are inconsistent, and the positioning slots are used to install charging cables or data cables. The data cable is integrally formed with the outer filler layer.

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