A corrosion-resistant and high-temperature-resistant new energy vehicle cable

Abstract

The present invention relates to the field of cable technology, and specifically to a corrosion-resistant and high-temperature-resistant new energy vehicle cable, comprising a wire core, a heat dissipation skeleton, and a protective cover; the wire core has three strands, all of which are located in the protective cover, a first chamber is defined between each two adjacent wire cores and the inner wall of the protective cover, and a second chamber is defined between the three wire cores; there are multiple heat dissipation skeletons, which are distributed in sequence along the length direction of the wire core, and two adjacent heat dissipation skeletons are deflected 120° in the circumferential direction of the wire core; the heat dissipation skeleton includes three sections of arc plates, and each arc plate is provided with a heat dissipation groove on the side away from the corresponding wire core; the heat dissipation skeleton can not only separate the three wire cores, but also connect the second chamber with the first chamber through the heat dissipation groove, so as to dissipate the heat between the three wire cores; and the two adjacent heat dissipation skeletons are deflected at a certain angle in the circumferential direction of the multiple wire cores, so that the second chambers at different heat dissipation skeletons are connected with a first chamber, so as to ensure the heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a corrosion-resistant and high-temperature-resistant new energy vehicle cable. Background Art

[0002] At present, most new energy vehicles on the market are electric-driven. Such electric-driven new energy vehicles will generate huge currents during driving or charging. Due to the large current, the heating of the energized cables is obvious. Although the heat dissipation of new energy vehicle cables has been improved in the prior art, for cables with multiple cores, the intersection of multiple cores will form a heat accumulation area, causing overheating in the center of the cable. Summary of the invention

[0003] The present invention provides a corrosion-resistant and high-temperature-resistant new energy automobile cable to solve the problem of overheating of the center of multiple-strand cores of existing cables.

[0004] The corrosion-resistant and high-temperature-resistant new energy vehicle cable of the present invention adopts the following technical solution:

[0005] A corrosion-resistant and high-temperature-resistant new energy vehicle cable comprises a wire core, a heat dissipation skeleton and a protective cover; the wire core has three strands, all of which are located in the protective cover and are distributed in an array in the protective cover, a first chamber is defined between each two adjacent wire cores and the inner wall of the protective cover, and a second chamber is defined between the three wire cores; there are multiple heat dissipation skeletons, which are distributed in sequence along the length direction of the wire core, and two adjacent heat dissipation skeletons are deflected 120° in the circumferential direction of the wire core; the heat dissipation skeleton comprises three arc plates, namely a first arc plate, a second arc plate and a third arc plate, the axis of each arc plate is coaxial with a wire core respectively, and the arc angle of each arc plate in the circumferential direction of the corresponding wire core is greater than 180°; the two ends of the second arc plate are tangent to and connected with one end of the first arc plate and one end of the third arc plate respectively, and the first arc plate abuts against the third arc plate; a heat dissipation groove is provided on the side of each arc plate away from the corresponding wire core, and the second chamber is connected to a first chamber through the heat dissipation grooves on the first arc plate and the third arc plate.

[0006] Optionally, the second arc plates of every three adjacent heat dissipation skeletons are coaxial with different wire cores, so that the second chambers of every three adjacent heat dissipation skeletons are connected with different first chambers.

[0007] Optionally, the protective cover is composed of three arc plates and three wave plates distributed alternately in its circumferential direction, the arc plates are used to fit with the arc plates of the heat dissipation frame, and the wave plates are used to define a first chamber with the wire core.

[0008] Optionally, one side of the arc-shaped plate close to the center of the protective sleeve is an arc surface coaxial with the wire core.

[0009] Optionally, a corrosion-resistant and high-temperature-resistant new energy vehicle cable also includes an armored tube and an outer protective tube; the armored tube is sleeved outside the protective sleeve, and the inner wall of the armored tube is provided with an arc groove for limiting the arc plate, and also with a wavy surface that fits the wavy plate; the outer peripheral wall of the armored tube is a cylindrical surface, and the outer protective tube is sleeved outside the armored tube.

[0010] Optionally, the heat dissipation slot is coaxial with the arc plate and extends in the circumferential direction of the winding core.

[0011] Optionally, there are multiple heat dissipation slots on each arc plate, which are spaced apart along the length direction of the wire core, and the heat dissipation slots on the first arc plate and the third arc plate correspond to each other and are connected.

[0012] Optionally, the second arc plate and the first arc plate, and the second arc plate and the third arc plate are respectively connected by a straight plate, and the straight plate is tangent to the end of the adjacent second arc plate, the first arc plate or the third arc plate, so as to increase the spacing between the three wire cores.

[0013] Optionally, the heat dissipation frame and the protective cover are both made of insulating materials.

[0014] Optionally, the wire core includes a conductor, an insulating layer and a metal shielding layer which are sequentially arranged from inside to outside.

[0015] The beneficial effects of the present invention are as follows: the corrosion-resistant and high-temperature-resistant new energy vehicle cable of the present invention is provided with a heat dissipation skeleton which can not only separate the three wire cores, but also connect the second chamber with the first chamber through the heat dissipation groove, so as to dissipate the heat between the three wire cores; and the two adjacent heat dissipation skeletons are deflected at a certain angle in the circumferential direction of the multiple wire cores, so that the second chambers at different heat dissipation skeletons are connected with a first chamber, thereby avoiding insufficient heat dissipation inside the second chamber due to extrusion deformation at the first chamber corresponding to a certain heat dissipation skeleton.

[0016] Furthermore, by making the second arc plates of every three adjacent heat dissipation skeletons coaxial with different wire cores, each wire core can have a fully wrapped portion, thereby improving the stability of the wire cores supported by the multiple heat dissipation skeletons.

[0017] Furthermore, the arc groove cooperates with the arc plate to limit the circumferential movement of the protective sleeve. The corrugated plate of the protective sleeve can not only increase the heat dissipation area of ​​the first chamber, but also produce slight deformation when impacted by external force, thereby providing buffering protection for the wire core inside.

[0018] Furthermore, the heat dissipation groove can not only dissipate heat for the second chamber, but also provide a certain deformation space for the deformation of the arc plate when the wire core is squeezed, thereby improving the toughness of the heat dissipation frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the end face of a corrosion-resistant and high-temperature-resistant new energy vehicle cable of the present invention;

[0021] Figure 2 for Figure 1 The enlarged schematic diagram of the X in the middle;

[0022] Figure 3 This is a schematic diagram of an exploded view of a corrosion-resistant and high-temperature-resistant new energy vehicle cable of the present invention;

[0023] Figure 4 This is an exploded schematic diagram of a wire core and a heat dissipation skeleton of a corrosion-resistant and high-temperature-resistant new energy vehicle cable of the present invention;

[0024] Figure 5 for Figure 4 The enlarged schematic diagram of the Y in the middle;

[0025] Figure 6 It is a schematic end view of a heat dissipation skeleton of a corrosion-resistant and high-temperature-resistant new energy vehicle cable according to the present invention.

[0026] In the figure: 100, wire core; 110, conductor; 120, insulation layer; 130, metal shielding layer; 140, first chamber; 150, second chamber; 200, heat dissipation skeleton; 210, first arc plate; 211, heat dissipation groove; 220, second arc plate; 230, third arc plate; 240, straight plate; 300, protective cover; 310, arc plate; 320, wave plate; 400, armored tube; 410, arc groove; 420, wave surface; 500, outer protective tube. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] An embodiment of a corrosion-resistant and high-temperature-resistant new energy vehicle cable of the present invention is as follows Figures 1 to 6 As shown, it includes a wire core 100 , a heat dissipation frame 200 and a protective cover 300 .

[0029] The wire core 100 has three strands, all of which are located in the protective cover 300 and distributed in an array in the protective cover 300. A first chamber 140 is defined between every two adjacent wire cores 100 and the inner wall of the protective cover 300, and a second chamber 150 is defined between the three wire cores 100.

[0030] There are multiple heat dissipation skeletons 200, all of which are arranged in the protective cover 300 and are distributed in sequence along the length direction of the wire core 100. Two adjacent heat dissipation skeletons 200 are deflected 120° in the circumferential direction of the multiple wire cores 100; the heat dissipation skeleton 200 includes three arc plates, namely the first arc plate 210, the second arc plate 220 and the third arc plate 230. The axis of each arc plate is coaxial with a wire core 100, and the arc angle of each arc plate in the circumferential direction of the corresponding wire core 100 is greater than 180°; the two ends of the second arc plate 220 are tangent to and connected with one end of the first arc plate 210 and one end of the third arc plate 230, respectively, and the first arc plate 210 is abutted against the third arc plate 230; a heat dissipation groove 211 is opened on the side of each arc plate away from the corresponding wire core 100, and the second chamber 150 is connected to a first chamber 140 through the heat dissipation grooves 211 on the first arc plate 210 and the third arc plate 230.

[0031] The heat dissipation skeleton 200 can not only separate the three wire cores 100, but also connect the second chamber 150 with the first chamber 140 through the heat dissipation groove 211, so as to dissipate the heat between the three wire cores 100; and the two adjacent heat dissipation skeletons 200 are deflected at a certain angle in the circumferential direction of the multiple wire cores 100, so that the second chambers 150 at different heat dissipation skeletons 200 are connected with a first chamber 140, so as to avoid the first chamber 140 corresponding to a certain heat dissipation skeleton 200 from being squeezed and deformed, resulting in insufficient heat dissipation inside the second chamber 150.

[0032] In this embodiment, the second arc plates 220 of every three adjacent heat dissipation frames 200 are respectively coaxial with different wire cores 100, so that the second chambers 150 of every three adjacent heat dissipation frames 200 are respectively connected with different first chambers 140. Since the first arc plate 210 is in contact with the third arc plate 230, the three arc plates work together to fully wrap the wire core 100 coaxial with the second arc plate 220, and the first arc plate 210 and the third arc plate 230 do not completely wrap the wire core 100 coaxial therewith; by making the second arc plates 220 of every three adjacent heat dissipation frames 200 coaxial with different wire cores 100, each wire core 100 can have a fully wrapped part, thereby improving the stability of the multiple heat dissipation frames 200 supporting the wire core 100.

[0033] In this embodiment, the protective cover 300 is composed of three arc plates 310 and three wave plates 320 distributed alternately in its circumferential direction. The arc plates 310 are used to fit with the arc plates of the heat dissipation frame 200. Specifically, the side of the arc plates 310 close to the center of the protective cover 300 is an arc surface coaxial with the wire core 100. The wave plates 320 are used to define the first chamber 140 with the wire core 100, and the wave plates 320 can increase the heat dissipation area of ​​the first chamber 140 and improve the heat dissipation effect of the cable.

[0034] In this embodiment, a corrosion-resistant and high-temperature-resistant new energy vehicle cable also includes an armored tube 400 and an outer protective tube 500; the armored tube 400 is sleeved outside the protective sleeve 300, and the inner wall of the armored tube 400 is provided with an arc groove 410 for limiting the arc plate 310, and a wave surface 420 that fits with the wave plate 320 is also provided; the outer peripheral wall of the armored tube 400 is a cylindrical surface, and the outer protective tube 500 is sleeved outside the armored tube 400. The arc groove 410 cooperates with the arc plate 310 to limit the movement of the protective sleeve 300 in its circumferential direction, and the wave surface 420 fits with the wave plate 320 of the protective sleeve 300, which can produce slight deformation when impacted by external force, and provide buffer protection for the wire core 100 inside. Among them, the outer protective tube 500 is an insulating and corrosion-resistant material, such as polytetrafluoroethylene, epoxy resin, fluoroplastics, etc. The armored tube 400 is mainly used to provide mechanical protection and protect the wire core 100 inside the cable from damage by external forces. In the prior art, commonly used armor layer materials include steel wire armor, aluminum alloy armor, plastic armor, copper wire armor, etc. The armored tube 400 of suitable material can be selected according to the application scenario of the cable.

[0035] In this embodiment, the heat dissipation groove 211 is coaxial with the arc plate and extends in the circumferential direction of the winding core 100. There are multiple heat dissipation grooves 211 on each arc plate, which are spaced apart along the length direction of the wire core 100, and the heat dissipation grooves 211 on the first arc plate 210 and the third arc plate 230 correspond to each other and are connected. The heat dissipation groove 211 can not only dissipate heat for the second chamber 150, but also provide a certain deformation space for the deformation of the arc plate when the wire core 100 is squeezed, thereby improving the toughness of the heat dissipation frame 200.

[0036] In this embodiment, the second arc plate 220 and the first arc plate 210, and the second arc plate 220 and the third arc plate 230 are respectively connected by a straight plate 240, and the straight plate 240 is tangent to the end of the adjacent second arc plate 220, the first arc plate 210 or the third arc plate 230, so as to increase the spacing between the three wire cores 100.

[0037] In this embodiment, the heat dissipation frame 200 and the protective cover 300 are both made of insulating materials. In addition, the heat dissipation frame 200 needs to have good heat dissipation performance and good toughness, and can usually be made of silicone rubber, graphite composite materials and polyolefins in the prior art. The protective cover 300 also needs to have wear resistance, and can usually be made of polytetrafluoroethylene, polyimide, polyurethane and the like in the prior art.

[0038] In this embodiment, the wire core 100 includes a conductor 110 , an insulating layer 120 , and a metal shielding layer 130 which are sequentially arranged from the inside to the outside.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrosion-resistant and high-temperature-resistant new energy vehicle cable, characterized in that: Including wire core, heat dissipation frame and protective cover; The wire core has three strands, all of which are located in the protective cover and are distributed in an array in the protective cover. A first cavity is defined between each two adjacent wire cores and the inner wall of the protective cover, and a second cavity is defined between the three wire cores. There are multiple heat dissipation skeletons, which are distributed in sequence along the length direction of the wire core, and two adjacent heat dissipation skeletons are deflected 120° in the circumferential direction of the wire core, so that the second chambers at different heat dissipation skeletons are connected to a first chamber; the heat dissipation skeleton includes three arc plates, namely the first arc plate, the second arc plate and the third arc plate, the axis of each arc plate is coaxial with a wire core, and the arc angle of each arc plate in the circumferential direction of the corresponding wire core is greater than 180°; the two ends of the second arc plate are tangent to and connected with one end of the first arc plate and one end of the third arc plate respectively, and the first arc plate abuts the third arc plate; each arc plate is provided with a heat dissipation groove on the side away from the corresponding wire core, and the second chamber is connected to a first chamber through the heat dissipation grooves on the first arc plate and the third arc plate; the heat dissipation groove is coaxial with the arc plate and extends in the circumferential direction of the winding core; the second arc plates of every three adjacent heat dissipation skeletons are coaxial with different wire cores, so that the second chambers of every three adjacent heat dissipation skeletons are connected to different first chambers.

2. A corrosion-resistant and high-temperature-resistant new energy vehicle cable according to claim 1, characterized in that: The protective cover is composed of three arc plates and three wave plates which are distributed alternately in the circumferential direction. The arc plates are used to fit with the arc plates of the heat dissipation frame, and the wave plates are used to define a first chamber with the wire core.

3. A corrosion-resistant and high-temperature-resistant new energy vehicle cable according to claim 2, characterized in that: One side of the arc plate close to the center of the protective cover is an arc surface coaxial with the wire core.

4. The corrosion-resistant and high-temperature-resistant new energy vehicle cable according to claim 2 is characterized in that: It also includes an armored tube and an outer protective tube; the armored tube is sleeved outside the protective sleeve, and the inner wall of the armored tube is provided with an arc groove for limiting the arc plate, and also with a wave surface that fits the wave plate; the outer peripheral wall of the armored tube is a cylindrical surface, and the outer protective tube is sleeved outside the armored tube.

5. The corrosion-resistant and high-temperature-resistant new energy vehicle cable according to claim 3 is characterized in that: There are a plurality of heat dissipation slots on each arc plate, which are distributed at intervals along the length direction of the wire core, and the heat dissipation slots on the first arc plate and the third arc plate correspond to each other and are connected.

6. The corrosion-resistant and high-temperature-resistant new energy vehicle cable according to claim 1, characterized in that: The second arc plate is connected to the first arc plate, and the second arc plate is connected to the third arc plate respectively through a straight plate, which is tangent to the end of the adjacent second arc plate, first arc plate or third arc plate, so as to increase the spacing between the three wire cores.

7. The corrosion-resistant and high-temperature-resistant new energy vehicle cable according to claim 1, characterized in that: The heat dissipation frame and the protective cover are both made of insulating materials.

8. The corrosion-resistant and high-temperature-resistant new energy vehicle cable according to claim 1, characterized in that: The wire core includes a conductor, an insulating layer and a metal shielding layer which are arranged in sequence from the inside to the outside.

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