CN209895821U - Heat dissipation cable for new energy automobile - Google Patents

Abstract

The utility model provides a heat dissipation cable for new energy automobile, including a plurality of electrically conductive units, a plurality of electrically conductive units are gathered together and arranged to form a cable conductor core, heat dissipation cable for new energy automobile still includes an aluminium strip layer (4), wraps up the whole cable conductor core; an inner sheath layer (5) covering the aluminum tape layer (4); the heat dissipation layer is arranged at intervals along the axial direction of the heat dissipation cable for the new energy automobile and comprises a heat dissipation ring body (6) and at least three heat dissipation strips (7) which are distributed along the circumferential direction of the heat dissipation ring body (6). The utility model discloses a new energy automobile is with heat dissipation cable passes through heat dissipation ring body (6) and connects in this heat dissipation ring body (6) and pierce through heat dissipation strip (7) structure that inner sheath layer (5) arrived armor (8), has constituted a logical heat whole jointly, has dispelled the heat of the inside production of cable effectively.

Description

Heat dissipation cable for new energy automobile

Technical Field

The utility model relates to a cable technical field for the new energy automobile, concretely relates to heat dissipation cable for new energy automobile.

Background

The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure.

The new energy automobile usually mainly uses an electric vehicle charged by a cable, and the arrangement design of the battery and the cable of the new energy automobile is changed for several times from the first one. Such as the first relatively far installations, although safe, result in cable elongation, increased resistance, rapid cable temperature rise, and high power consumption. And if the installation place is too close to the vehicle, the placement position of people during parking is not facilitated. Therefore, under the premise of needing a cable with a certain length for charging, certain requirements are put on the heat dissipation performance of the cable.

During the production development process related to the technology for many years, the applicant of the present application finds that the prior art has at least the following technical problems:

the discharge efficiency of the new energy automobile at the same temperature is different, wherein the efficiency of the lithium iron phosphate battery at 18-45 ℃ can reach more than 80%, however, the efficiency is reduced along with the increase of the temperature, the waste efficiency generates more heat, the efficiency is further reduced, and finally vicious circle is caused. And the lower power and the higher temperature can cause the battery of the new energy automobile to generate a large amount of heat in the charging and using processes, and if the heat is not dissipated in time, the conditions of overhigh temperature, frequent overheating, people scalding and even spontaneous combustion can occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides a new energy automobile is with heat dissipation cable consequently, it can solve under the existing conditions the not good difficult problem of heat dissipation cable heat dispersion for the new energy automobile.

In order to solve the technical problem, the utility model discloses following technical scheme can be adopted:

the utility model provides a heat dissipation cable for new energy automobile, is including a plurality of electrically conductive units, it is a plurality of electrically conductive unit closes up to arrange and forms a cable core, its characterized in that, heat dissipation cable for new energy automobile still including: an aluminum tape layer (4) wrapping the whole cable core; an inner sheath layer (5) covering the aluminum tape layer (4); the heat dissipation layer is arranged at intervals at a preset distance along the axial direction of the heat dissipation cable for the new energy automobile and comprises a heat dissipation ring body (6) and at least three heat dissipation strips (7) distributed along the circumferential direction of the heat dissipation ring body (6); the heat dissipation ring body (6) is arranged in the inner sheath layer (5); the armor layer (8) is coated outside the inner sheath layer (5) and comprises two layers of steel wire or steel strip material layers, the two layers of steel wire or steel strip material layers are distributed along the circumferential direction of the heat dissipation cable for the new energy automobile, and the heat dissipation strip (7) penetrates through the inner sheath layer (5) along the radial direction of the heat dissipation ring body (6) and extends into the armor layer (8); and the outer sheath layer (9) is coated outside the armor layer (8).

Furthermore, the heat dissipation strips (7) are uniformly distributed along the circumferential direction of the heat dissipation ring body (6).

Furthermore, each conducting unit sequentially comprises a conductor, a fire-resistant layer and an insulating layer (3) from inside to outside.

Further, the fire-resistant layer (2) is composed of a plurality of layers of fire-resistant mica tapes.

Further, the insulating layer (3) is a crosslinked polyethylene layer, a polyvinyl chloride layer, a silicone rubber layer or a polytetrafluoroethylene layer.

Furthermore, at least two reinforcing ribs are symmetrically arranged at the joint of each heat dissipation strip (7) and the heat dissipation ring body (6).

Further, the inner sheath layer (5) is a polyethylene layer.

Further, the outer sheath layer (9) is a polyvinyl chloride layer or a rubber layer.

Further, the heat dissipation cable for the new energy automobile further comprises a carbon core (10), and the carbon core (10) is arranged at the center of the cable guiding core.

Above-mentioned new energy automobile includes with heat dissipation cable's beneficial effect:

the utility model discloses a new energy automobile is with heat dissipation cable passes through heat dissipation ring body (6) and pierces through inner sheath layer (5) and arrives heat dissipation strip (7) structure of armor (8), has constituted a logical heat wholly jointly, has dispelled the heat of the inside production of cable effectively.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention in one embodiment; to show the internal structure of a cross section with the heat dissipating ring 6 and the heat dissipating bar 7;

FIG. 2 is a schematic cross-sectional view of the heat dissipating cable of FIG. 1 in another position; for comparison with fig. 1, the difference of the schematic cross-sectional position of the cable without the heat dissipation layer (heat dissipation ring 6 and heat dissipation strip 7) is shown;

the following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Throughout the description of the present invention, it should be noted that, for the terms of orientation, there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicating the orientation and positional relationship as being based on the orientation or positional relationship shown in the drawings or commonly known to those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic cross-sectional view of an embodiment of the present invention; to show the internal structure of a cross section with the heat dissipating ring 6 and the heat dissipating bar 7; in this embodiment the conductive element, aluminium strip layer 4, inner sheath layer 5, heat sink layer, armour layer 8 and outer sheath layer are shown.

Electrically conductive unit, it is a plurality of electrically conductive unit closes to arrange and forms a cable core, its characterized in that, new energy automobile is with heat dissipation cable still including:

and the aluminum tape layer 4 wraps the whole cable conducting core.

And the inner sheath layer 5 is coated outside the aluminum tape layer 4.

The heat dissipation layers are arranged at intervals at preset intervals along the axial direction of the heat dissipation cable for the new energy automobile and comprise a heat dissipation ring body 6 and at least three heat dissipation strips 7 which are distributed along the circumferential direction of the heat dissipation ring body 6; the heat dissipation ring body 6 is arranged in the inner jacket layer 5.

The armor layer 8 is coated outside the inner sheath layer 5 and comprises two layers of steel wires or steel strip material layers, the two layers of steel wires or steel strip material layers are arranged along the circumferential direction of the heat dissipation cable for the new energy automobile, and the heat dissipation strip 7 penetrates through the inner sheath layer 5 in the radial direction of the heat dissipation ring body 6 and extends into the armor layer 8.

And the outer sheath layer 9 is coated outside the armor layer 8.

Wherein, it is preferable that the heat dissipation strip 7 can be a metal material with good heat conductivity, and because the armor layer 8 is connected at the other end of the heat dissipation strip 7, the armor layer 8 itself belongs to a protective layer (made of steel wire or steel strip material layer) with good heat dissipation effect in the heat dissipation cable, so that the heat dissipation strip 7 and the armor layer 8 form a heat conduction whole, thereby enhancing the heat dissipation effect, and the heat of the heat dissipation strip can be transmitted from the heat dissipation strip, gradually extended to the armor layer 8, and then transmitted to the outer sheath layer 9 outside the armor layer 8 to finally dissipate the heat. The heat dissipation strip 7 also has a certain resisting effect on the radial pressure applied to the cable, so that a support is added to the part between the armor layer 8 and the conductive unit in the radial direction.

It may be preferred that the process of forming a core of conductive wire from the closed arrangement of the plurality of conductive elements is accomplished by surrounding a centrally located carbon core 10.

It may be preferable that the heat dissipation strips 7 are uniformly arranged along the circumferential direction of the heat dissipation ring body 6. I.e. when the number of the heat dissipation bars is three, the included angle between each other is 120 deg.. The heat dissipation and heat conduction effect is more uniform, the supporting effect is achieved, and the bearing effect on the radial pressure borne by the heat dissipation cable is better.

It may be preferable that each of the conductive units includes a conductor, a refractory layer, and an insulating layer 3 in this order from the inside to the outside.

It may be preferred that the refractory layer 2 consists of a plurality of layers of refractory mica tapes.

It may be preferable that the insulating layer 3 is a crosslinked polyethylene layer, a polyvinyl chloride layer, a silicone rubber layer, or a polytetrafluoroethylene layer.

It is preferable that at least two reinforcing ribs are symmetrically arranged at the connection position of each heat dissipation strip 7 and the heat dissipation ring body 6.

It should be noted that the reinforcing ribs are mainly used to stabilize the connection between the heat dissipating strip 7 and the heat dissipating ring body 6. Because the whole heat dissipation layer that heat dissipation strip 7 and heat dissipation ring body 6 are constituteed not only can be used for the heat dissipation, still is used for bearing part and comes from the radial pressure of cable or pulls power, needs to guarantee that this heat dissipation layer can not easily break, fracture in the cable to cause maintenance, clearance difficulty scheduling problem.

It may be preferred that the inner sheath layer 5 is a polyethylene layer. Wherein the heat sink strip 7 extends radially from the heat sink ring 6, penetrates the inner jacket layer 5 and finally extends to the armouring layer 8.

It may be preferable that the outer sheath layer 9 is a polyvinyl chloride layer or a rubber layer.

Referring to fig. 2, fig. 2 is a schematic cross-sectional view of the heat dissipation cable of fig. 1 at another position; for comparison with fig. 1, the difference of the schematic cross-sectional position of the cable without the heat dissipation layer (heat dissipation ring 6 and heat dissipation strip 7) is shown.

As can be seen from the comparison between fig. 2 and fig. 1, in the present invention, the heat dissipation layer composed of the heat dissipation ring body 6 and the heat dissipation strip 7 is disposed along the axial direction of the heat dissipation cable at intervals of a first predetermined distance, and when processing, some segments are added with the heat dissipation layer, and some segments are not provided with the heat dissipation layer, which is designed in a segmented manner because the segmented heat conduction is more conducive to the heat dissipation effect (because if the radial heat dissipation layer is circulated along with the cable, the heat on each side may be diffused along the radial direction, instead of being diffused outward in the direction of the radial conductive unit → the heat dissipation layer → the armor layer 8 → the polyethylene outer sheath layer), and the material of the heat dissipation layer is also saved.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model.

The reference numerals and drawings in the present invention are for the purpose of the present invention to facilitate understanding of the present invention during and after the application process, and when reading by those skilled in the art, the present invention does not constitute a limitation to the position and connection of the components.

The protection scope of the present invention is subject to the claims.

Those not described in detail in this specification are within the skill of the art.

Claims (9)

1. The utility model provides a heat dissipation cable for new energy automobile, is including a plurality of electrically conductive units, a plurality of electrically conductive unit is closed up and is arranged and form a cable core, its characterized in that, heat dissipation cable for new energy automobile still including:

an aluminum tape layer (4) wrapping the whole cable core;

an inner sheath layer (5) covering the aluminum tape layer (4);

the heat dissipation layer is arranged at intervals at a preset distance along the axial direction of the heat dissipation cable for the new energy automobile and comprises a heat dissipation ring body (6) and at least three heat dissipation strips (7) distributed along the circumferential direction of the heat dissipation ring body (6); the heat dissipation ring body (6) is arranged in the inner sheath layer (5);

the armor layer (8) is coated outside the inner sheath layer (5) and comprises two layers of steel wire or steel strip material layers, the two layers of steel wire or steel strip material layers are distributed along the circumferential direction of the heat dissipation cable for the new energy automobile, and the heat dissipation strip (7) penetrates through the inner sheath layer (5) along the radial direction of the heat dissipation ring body (6) and extends into the armor layer (8); and

and the outer sheath layer (9) is coated outside the armor layer (8).

2. The heat dissipation cable for the new energy automobile as claimed in claim 1, wherein the heat dissipation strips (7) are uniformly arranged along a circumferential direction of the heat dissipation ring body (6).

3. The heat dissipation cable for the new energy automobile as claimed in claim 1, wherein each of the conductive units comprises, in order from inside to outside, a conductor (1), a flame retardant coating (2), and an insulating layer (3).

4. The heat dissipation cable for the new energy automobile as claimed in claim 3, wherein the fire-resistant layer (2) is a multi-layer fire-resistant mica tape layer.

5. The heat dissipation cable for the new energy automobile as claimed in claim 3, wherein the insulating layer (3) is a crosslinked polyethylene layer, a polyvinyl chloride layer, a silicone rubber layer, or a polytetrafluoroethylene layer.

6. The heat dissipation cable for the new energy automobile as claimed in claim 1, wherein at least two reinforcing ribs are symmetrically arranged at the joint of each heat dissipation strip (7) and the heat dissipation ring body (6).

7. The heat dissipation cable for new energy vehicles as claimed in claim 1, wherein the inner sheath layer (5) is a polyethylene layer.

8. The heat dissipation cable for the new energy automobile as claimed in claim 1, wherein the outer sheath layer (9) is a polyvinyl chloride layer or a rubber layer.

9. The heat dissipation cable for new energy vehicles as claimed in any one of claims 1 to 8, further comprising a carbon core (10), wherein the carbon core (10) is disposed at the center of the cable core.

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