CN215377053U

CN215377053U - In-car high-voltage cable for electric automobile

Info

Publication number: CN215377053U
Application number: CN202120306870.7U
Authority: CN
Inventors: 程刚; 高智斌; 袁剑
Original assignee: Anhui Yuanzheng Cable Technology Co ltd
Current assignee: Anhui Yuanzheng Cable Technology Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-12-31
Anticipated expiration: 2031-02-03

Abstract

The utility model relates to the technical field of cables, in particular to an in-vehicle high-voltage cable for an electric automobile, which comprises: the cable comprises a cable body, wherein a cable assembly and an optical cable are arranged in the cable body, and the cable body is sequentially provided with a shielding layer, a fireproof layer, a waterproof layer and an anti-corrosion protection outer skin from inside to outside; a filler is filled between the cable assembly and the shielding layer, and an optical cable is arranged inside the filler; the cable assembly comprises a conductive column, an insulating layer is arranged on the outer side of the conductive column, a flame-retardant heat-insulating layer is wrapped on the outer side of the insulating layer, and a waterproof sheath is arranged on the outer side of the flame-retardant heat-insulating layer; the in-car high-voltage cable for the electric automobile is characterized in that a flame-retardant heat-insulating layer and an insulating layer are arranged in a cable assembly; a shielding layer, a fireproof layer and a waterproof layer are sequentially arranged on the outer side of the cable assembly; make whole the interior high-voltage cable of car for electric automobile can shield protection effectively, and insulating properties is better, can not the static fire, and dampproofing fire behavior is better, and factor of safety is higher.

Description

In-car high-voltage cable for electric automobile

Technical Field

The utility model relates to the technical field of cables, in particular to an in-vehicle high-voltage cable for an electric automobile.

Background

The electric vehicle (BEV) is a vehicle which takes a vehicle-mounted power supply as power and drives wheels by a motor, and meets various requirements of road traffic and safety regulations. The automobile has a small influence on the environment, so that the prospect is widely seen, but the current technology is not mature. A high voltage cable is a generic term for optical cables, electric cables, etc., and is one of power cables used for power transmission and distribution. In the construction of electric locomotive cars, high voltage cables are used in a wide range of applications.

Because multiple safety factors need to be considered when designing and constructing the electric automobile, multiple factors need to be considered when designing and using the high-voltage cable in the electric automobile, for example, the anti-static effect of the high-voltage cable, the conductive post in the high-voltage cable generates an electromagnetic field when being electrified, if the high-voltage cable cannot effectively shield and protect, a high-voltage hazard may be generated, and in addition, the insulation performance of the cable is poor, static fire may be caused, and the whole electric automobile may have a fire hazard.

In view of the above problems in the background art, the present invention is directed to an in-vehicle high voltage cable for an electric vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an in-vehicle high-voltage cable for an electric vehicle, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

an in-vehicle high-voltage cable for an electric vehicle, comprising: the cable comprises a cable body, wherein cable assemblies and optical cables are arranged in the cable body, the number of the cable assemblies is four, and the four cable assemblies are separated by a spacer; the cable body is sequentially provided with a shielding layer, a fireproof layer, a waterproof layer and an anti-corrosion protection outer skin from inside to outside; a filler is filled between the cable assembly and the shielding layer, and an optical cable is arranged inside the filler;

the cable subassembly is equipped with the insulating layer including leading electrical pillar, leading the electrical pillar outside, and insulating layer outside parcel has the fire-retardant insulating layer of one deck, and the fire-retardant insulating layer outside is equipped with round waterproof sheath.

As a further scheme of the utility model: in order to improve the bending strength of the anti-corrosion protection outer skin, nylon wires are arranged inside the anti-corrosion protection outer skin.

As a further scheme of the utility model: the shielding layer comprises an inner screen layer and an outer screen layer, the inner side of the inner screen layer is in contact with the filler, an outer binding copper strip paper is arranged between the inner screen layer and the outer screen layer, and a weaving copper strip is arranged on the outer side of the outer screen layer.

As a further scheme of the utility model: the inner screen layer structure composition is the same as the outer screen layer structure composition, and metalized paper or semiconductor paper is filled in the inner screen layer and the outer screen layer.

As a further scheme of the utility model: the fireproof layer comprises a glass fiber fireproof cloth layer, an oxygen isolation layer and an aluminum foil paper layer, and the glass fiber fireproof cloth layer, the oxygen isolation layer and the aluminum foil paper layer are sequentially distributed from inside to outside; the oxygen barrier layer is filled with an oxidizing substance, and the oxidizing substance comprises aluminum hydroxide and manganese hydroxide; the aluminum hydroxide and the manganese hydroxide release crystal water under the condition of high temperature, so that the ignition point is reduced to achieve the purpose of fire insulation and even fire prevention; in addition, the aluminum foil paper layer and the glass fiber fireproof cloth layer are both provided with fireproof and heat-insulating properties.

Compared with the prior art, the utility model has the beneficial effects that:

the in-car high-voltage cable for the electric automobile is characterized in that a flame-retardant heat-insulating layer and an insulating layer are arranged in a cable assembly; a shielding layer, a fireproof layer and a waterproof layer are sequentially arranged on the outer side of the cable assembly; make whole the interior high-voltage cable of car for electric automobile can shield protection effectively, and insulating properties is better, can not the static fire, and dampproofing fire behavior is better, and factor of safety is higher, can adapt to the inside complicated rugged environment of electric automobile.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

Fig. 1 is a schematic structural diagram of an in-vehicle high-voltage cable for an electric vehicle according to an embodiment of the utility model.

Fig. 2 is a cross-sectional view of an in-vehicle high-voltage cable for an electric vehicle according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a shielding layer of an in-vehicle high-voltage cable for an electric vehicle according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a fire-proof layer of an in-vehicle high-voltage cable for an electric vehicle according to an embodiment of the utility model.

In the figure: the cable comprises a cable body 1, nylon wires 2, an anticorrosion protective sheath 3, a waterproof layer 4, a fireproof layer 5, a shielding layer 6, a cable component 7, fillers 8, optical cables 9, a spacer 10, a waterproof jacket 11, a flame-retardant heat-insulating layer 12, an insulating layer 13, a conductive column 14, a copper wire weaving band 15, an outer screen layer 16, an outer copper binding band layer 17, an inner screen layer 18, an aluminum foil paper layer 19, an oxygen isolating layer 20 and a glass fiber fireproof cloth layer 21.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1

Referring to fig. 1 and 2, in embodiment 1 of the present invention, an in-vehicle high voltage cable for an electric vehicle includes: the cable comprises a cable body 1, wherein cable assemblies 7 and optical cables 9 are arranged inside the cable body 1, the number of the cable assemblies 7 is four, and the four cable assemblies 7 are separated by a spacing body 10; the cable body 1 is sequentially provided with a shielding layer 6, a fireproof layer 5, a waterproof layer 4 and an anti-corrosion protective outer skin 3 from inside to outside; a filler 8 is filled between the cable assembly 7 and the shielding layer 6, and an optical cable 9 is arranged inside the filler 8;

the cable assembly 7 comprises a conductive column 14, an insulating layer 13 is arranged on the outer side of the conductive column 14, a flame-retardant heat-insulating layer 12 is wrapped on the outer side of the insulating layer 13, and a circle of waterproof jacket 11 is arranged on the outer side of the flame-retardant heat-insulating layer 12;

the in-car high-voltage cable for the electric automobile is characterized in that a flame-retardant heat-insulating layer 12 and an insulating layer 13 are arranged in the cable assembly 7; a shielding layer 6, a fireproof layer 5 and a waterproof layer 4 are sequentially arranged on the outer side of the cable assembly 7; make whole the interior high-voltage cable of car for electric automobile can shield protection effectively, and insulating properties is better, can not the static fire, and dampproofing fire behavior is better, and factor of safety is higher, can adapt to the inside complicated rugged environment of electric automobile.

Further, in order to improve the bending strength of the anti-corrosion protection outer skin 3, the nylon wires 2 are arranged inside the anti-corrosion protection outer skin 3.

Example 2

Referring to fig. 3, further, the shielding layer 6 includes an inner screen layer 18 and an outer screen layer 16, the inner side of the inner screen layer 18 contacts with the filler 8, an outer binding copper tape 17 is arranged between the inner screen layer 18 and the outer screen layer 16, and a weaving copper ribbon 15 is arranged on the outer side of the outer screen layer 16;

specifically, the structural composition of the inner screen layer 18 is the same as that of the outer screen layer 16, and metallized paper or semiconductor paper is filled in both the inner screen layer 18 and the outer screen layer 16;

the increase of the electric field intensity on the surface of a conductor caused by non-smoothness of the surface of the cable assembly 7 can be eliminated through the matching action of the inner screen layer 18, the outer bound copper tape 17, the outer screen layer 16 and the woven copper wire belt 15, namely the electrostatic action of the cable assembly 7 is eliminated, and the fire caused by the electrostatic action of the cable assembly 7 is avoided.

Referring to fig. 4, further, the fire-proof layer 5 includes a glass fiber fire-proof cloth layer 21, an oxygen-isolating layer 20 and an aluminum foil paper layer 19, wherein the glass fiber fire-proof cloth layer 21, the oxygen-isolating layer 20 and the aluminum foil paper layer 19 are sequentially distributed from inside to outside; the oxygen barrier layer 20 is filled with an oxidizing substance, wherein the oxidizing substance comprises aluminum hydroxide and manganese hydroxide; the aluminum hydroxide and the manganese hydroxide release crystal water under the condition of high temperature, so that the ignition point is reduced to achieve the purpose of fire insulation and even fire prevention; the aluminum foil paper layer 19 and the glass fiber fireproof cloth layer 21 which are arranged additionally have fireproof and heat-insulating properties;

the rest of the structure of example 2 is the same as example 1.

The working principle of the embodiment of the utility model is as follows:

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An in-vehicle high-voltage cable for an electric vehicle, comprising: a cable body (1); the method is characterized in that: the cable body (1) is internally provided with four cable assemblies (7) and four optical cables (9), and the four cable assemblies (7) are separated by spacers (10); the cable body (1) is sequentially provided with a shielding layer (6), a fireproof layer (5), a waterproof layer (4) and an anti-corrosion protective outer skin (3) from inside to outside; a filler (8) is filled between the cable assembly (7) and the shielding layer (6), and an optical cable (9) is arranged inside the filler (8); the cable assembly (7) comprises a conductive column (14), an insulating layer (13) is arranged on the outer side of the conductive column (14), a flame-retardant heat-insulating layer (12) is wrapped on the outer side of the insulating layer (13), and a circle of waterproof jacket (11) is arranged on the outer side of the flame-retardant heat-insulating layer (12).

2. The in-vehicle high-voltage cable for the electric vehicle according to claim 1, characterized in that: the nylon wire (2) is arranged inside the anti-corrosion protection outer skin (3).

3. The in-vehicle high-voltage cable for the electric vehicle according to claim 1, characterized in that: the shielding layer (6) comprises an inner screen layer (18) and an outer screen layer (16), the inner side of the inner screen layer (18) is in contact with the filler (8), an outer binding copper strip paper (17) is arranged between the inner screen layer (18) and the outer screen layer (16), and a weaving copper strip (15) is arranged on the outer side of the outer screen layer (16).

4. The in-vehicle high-voltage cable for the electric vehicle according to claim 3, characterized in that: the structure composition of the inner screen layer (18) is the same as that of the outer screen layer (16), and metallized paper or semiconductor paper is filled in the inner screen layer (18) and the outer screen layer (16).

5. The in-vehicle high-voltage cable for the electric vehicle according to claim 1, characterized in that: the fireproof layer (5) comprises a glass fiber fireproof cloth layer (21), an oxygen isolation layer (20) and an aluminum foil paper layer (19), and the glass fiber fireproof cloth layer (21), the oxygen isolation layer (20) and the aluminum foil paper layer (19) are sequentially distributed from inside to outside; the oxygen barrier layer (20) is filled with an oxidizing substance.