CN218568501U - Electric automobile cable - Google Patents

Abstract

The utility model relates to the technical field of cables, especially relate to an electric automobile cable, current cable performance is ordinary, the security performance is low, an electric automobile cable, including the conductor, the conductor sets up insulating layer outward and forms insulation core, and a plurality of insulation core hanks and form insulating hank and structure, insulating hank and structure set gradually outward around covering and oversheath, insulating hank and structure and set up fire-retardant packing around between the covering, the insulating layer is polyvinylidene fluoride, has good fire resistance, solves electric automobile and stays in the long-term low temperature when outdoor winter and causes the condition of insulating fracture and the condition that long-term during operation high temperature caused insulating ageing, improves electric automobile security, has good development prospect in cable technical field.

Description

Electric automobile cable

Technical Field

The utility model relates to a cable technical field especially relates to an electric automobile cable.

Background

With the development of the automobile industry and the improvement of the living standard of people, people have more and more demands and uses for automobiles, but with the increasing severity of the problems of energy exhaustion, environmental pollution and the like, electric automobiles are becoming the first choice of people.

With the popularization of electric automobiles, people have further requirements on cruising distance and speed increase, the realization of long-distance cruising and quick speed increase become necessary conditions for consumers to select and purchase automobiles, and the improvement of the functions depends on the performance of internal cables of the electric automobiles.

The TPE (thermoplastic elastomer) used by the traditional electric automobile cable is used as an insulating layer, and the following problems exist: 1. the external dimension is larger, and the internal space of the electric automobile is limited, so that the cable is not favorably arranged in a narrow space; 2. the electric automobile is in the condition of low temperature causing insulation cracking when staying outdoors for a long time in winter and in the condition of high temperature causing insulation aging when working for a long time; 3. the inside cable temperature rise of electric automobile is too fast, the too high condition of temperature, reduces the current-carrying capacity of cable, and accelerates the ageing of cable insulation, reduces electric automobile's security and durability.

In addition, compared with the traditional fuel automobile, the electric automobile has more electric elements inside and has higher electrification degree, so that the electric complexity of the automobile is increased, and the higher requirements on the safety of the cable inside the electric automobile are provided.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an electric automobile cable solves the problem that current cable performance is ordinary, the security performance is low.

Its technical scheme is, an electric automobile cable, includes the conductor, the conductor sets up the insulating layer outward and forms insulating sinle silk, a plurality of insulating sinle silks and form insulating hank and structure, insulating hank and structure set gradually outward around covering and oversheath, insulating hank and structure and set up fire-retardant packing around between the covering, the insulating layer is polyvinylidene fluoride, and polyvinylidene fluoride (PVDF) has good fire resistance, can extinguish by oneself when taking place the conflagration, and normal operating temperature scope is between-60 to +150, can solve the electric automobile and stay for a long time when outdoor winter low temperature causes the condition of insulating fracture and the condition that the long-term during operation high temperature caused insulating ageing to improve electric automobile's security.

Furthermore, the thickness of the insulating layer is between 0.15mm and 0.40mm, the traditional electric vehicle cable uses the thermoplastic elastomer as the insulating layer, the insulating thickness is generally between 0.8mm and 2.0mm, and the thickness of the insulating layer is thinner on the basis of the same electrical performance, so that the overall dimension of the cable is smaller, the cable can be conveniently arranged in a narrow space, and the flexibility of the cable can be increased to a certain extent.

Furthermore, the conductor comprises a water micro-cooling pipe and a monofilament, the monofilament is arranged on the outer layer of the water micro-cooling pipe, the water micro-cooling pipe is positioned in the center of the conductor, the conductor generates heat when the cable is powered for a long time or is in short-time high-power operation, the current-carrying capacity of the cable is rapidly reduced to influence the normal performance of the electric automobile, the water micro-cooling pipe is filled with cooling water during normal operation power supply, the heat generated by the conductor can be rapidly taken away, and the current-carrying capacity is improved.

Furthermore, the monofilament is a 6-class annealed soft copper wire, so that the cable can keep enough softness.

Furthermore, the water micro-cooling pipe is a corrugated thin-wall copper pipe.

Furthermore, the wrapping layer is a PP tape, so that the overall dimension of the cable can be reduced.

Furthermore, the outer sheath is made of TPEE material, so that the overall mechanical performance, aging resistance, wear resistance, oil resistance, high and low temperature resistance of the cable are improved, and the cable has good flexibility.

Furthermore, the flame-retardant filling is flame-retardant glass fiber filling, and the flame-retardant effect is good.

The utility model has the technical effects that the water micro-cooling pipe is a corrugated thin-wall copper pipe, and the water micro-cooling pipe rapidly takes away heat generated by the conductor, thereby improving the current-carrying capacity; the insulating layer is polyvinylidene fluoride (PVDF), compared with a TPE (thermoplastic elastomer) used by a traditional electric vehicle cable as the insulating layer, on the basis of the same electrical performance, the thickness of the insulating layer is thinner, the mechanical performance is better, the arrangement in a narrow space is convenient, and the problems that the electric vehicle stays outdoors for a long time, the insulation is cracked due to low temperature and the insulation is aged due to high temperature in long-term working are solved; the cable has good flexibility and good flame retardance, and the safety of the electric automobile is greatly improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the conductor structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows: the electric automobile cable comprises a conductor 1, wherein an insulating layer 2 is arranged outside the conductor 1 to form an insulating wire core, a plurality of insulating wire core strands and an insulating strand and structure are formed, a wrapping layer 3 and an outer sheath 4 are sequentially arranged outside the insulating strand and structure, flame-retardant filling is arranged between the insulating strand and structure and the wrapping layer 3, the flame-retardant filling is filled with flame-retardant glass fibers, the flame-retardant effect is good, the insulating layer 2 is polyvinylidene fluoride and is wrapped on the conductor in a melting and extruding mode, so that the insulating layer has excellent mechanical performance, electrical performance, wear resistance, flexibility, high and low temperature resistance, weather resistance, ultraviolet ray resistance, flame retardance, solvent resistance and other performances, polyvinylidene fluoride (PVDF) has excellent flame retardance and can be automatically extinguished in case of fire, the normal working temperature range is between-60 degrees and +150 degrees, the problems that the electric automobile is in low temperature for a long time in outdoor winter to cause insulation cracking and high temperature for long time to cause insulation aging can be solved, and the safety of the electric automobile is improved.

The second embodiment: on the basis of the first embodiment, the conductor 1 comprises a water micro-cooling pipe 1.2 and a monofilament 1.1, the monofilament 1.1 is a 6-class annealed soft copper wire and can keep the cable to have sufficient softness, the water micro-cooling pipe 1.2 is a corrugated thin-wall copper pipe, the monofilament 1.1 is twisted and arranged on the outer layer of the water micro-cooling pipe 1.2, the water micro-cooling pipe is located in the center of the conductor, the conductor generates heat when the cable is powered for a long time or is powered for a short time and high in power, the current-carrying capacity of the cable is rapidly reduced, the normal performance of an electric automobile is affected, and the water micro-cooling pipe is internally filled with cooling water when the cable is powered for normal operation, so that the heat generated by the conductor can be rapidly taken away, and the current-carrying capacity is improved.

Example three: the thickness of the insulating layer 2 is 0.15mm-0.40mm, the traditional electric vehicle cable uses a thermoplastic elastomer as the insulating layer, the insulating thickness is generally 0.8mm-2.0mm, the thickness of the insulating layer is thinner on the basis of the same electrical performance, the overall dimension of the cable is smaller, the cable can be distributed in a narrow space, the flexibility of the cable can be increased to a certain extent, the wrapping layer 3 is a PP (polypropylene) belt, the overall dimension of the cable can be reduced, the outer sheath 4 is a TPEE material, the overall mechanical performance, aging resistance, wear resistance, oil resistance and high and low temperature resistance of the cable are improved, and the cable has good flexibility.

The utility model has the technical effects that the water micro-cooling pipe is a corrugated thin-wall copper pipe, and the water micro-cooling pipe rapidly takes away heat generated by the conductor, thereby improving the current-carrying capacity; the insulating layer is polyvinylidene fluoride (PVDF), and compared with a TPE (thermoplastic elastomer) used by a traditional electric vehicle cable as the insulating layer, the polyvinylidene fluoride (PVDF) cable has the advantages that on the basis of the same electrical performance, the thickness of the insulating layer is thinner, the mechanical performance is better, the arrangement of the PVDF cable in a narrow space is facilitated, and the problems that the electric vehicle stays outdoors for a long time in winter, the insulation is cracked due to low temperature, and the insulation is aged due to high temperature in long-term working are solved; the cable has good flexibility and flame retardance, and the safety of the electric automobile is greatly improved.

The present invention has been described in detail with reference to the specific embodiments and examples, but these are not to be construed as limitations of the present invention. Numerous variations and modifications can be made by those skilled in the art without departing from the principles of the invention, which should also be considered as within the scope of the invention.

Claims (8)

1. The utility model provides an electric automobile cable, includes conductor (1), its characterized in that, conductor (1) sets up insulating layer (2) outward and forms insulating sinle silk, and a plurality of insulating sinle silks twist and form insulating hank and structure, insulating hank sets gradually around covering (3) and oversheath (4) with the structure outward, insulating hank and structure and set up fire-retardant packing around between covering (3), insulating layer (2) are polyvinylidene fluoride.

2. An electric vehicle cable according to claim 1, characterised in that the insulating layer (2) has a thickness of between 0.15mm and 0.40 mm.

3. The electric vehicle cable according to claim 1, characterized in that the conductor (1) comprises a water micro-cooling tube (1.2) and a monofilament (1.1), and the monofilament (1.1) is twisted and arranged on the outer layer of the water micro-cooling tube (1.2).

4. An electric vehicle cable according to claim 3, characterised in that the monofilament (1.1) is a class 6 annealed soft copper wire.

5. An electric vehicle cable according to claim 3, characterised in that the water micro-cooling tube (1.2) is a corrugated thin-walled copper tube.

6. The electric vehicle cable according to claim 1, wherein the wrapping layer (3) is a PP tape.

7. An electric vehicle cable according to claim 1, characterised in that the outer sheath (4) is of TPEE material.

8. The electric vehicle cable of claim 1, wherein the flame retardant filler is a flame retardant fiberglass filler.

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