阅读说明：本技术 一种新型汽车硅橡胶电缆及制造方法 (Novel automobile silicone rubber cable and manufacturing method thereof ) 是由 朱泉健 李庆森 白丽英 于 2020-12-04 设计创作，主要内容包括：本发明提供一种新型汽车硅橡胶电缆,包括：中心导体,由若干根铜丝交叉正规绞合而成；绝缘层,材质为耐热硅橡胶,均匀地挤包在所述中心导体外；涂覆层,材质为特种液体硅橡胶,均匀涂覆在所述绝缘层外。中心导体采用超细铜丝多单元小节距的交叉正规绞合结构,不仅使导体具备高柔软的特性,同时保证了电缆低阻节能、高载流的能力；绝缘采用了耐热硅橡胶材料,保证电缆具备高柔软的特性,使用时易于安装,同时电缆可以耐+200℃高温,并具有优异的耐臭氧、耐油、耐气候、耐低温、环保等特性；涂覆层的材质为特种液体硅橡胶,使电缆在具备高柔软、高耐磨特性同时,防止硅氧烷分子的挥发,保证了汽车电路电子元件的正常使用。(The invention provides a novel automobile silicon rubber cable, which comprises: the central conductor is formed by crossing and regularly twisting a plurality of copper wires; the insulating layer is made of heat-resistant silicon rubber and is uniformly extruded outside the central conductor; and the coating layer is made of special liquid silicone rubber and is uniformly coated outside the insulating layer. The central conductor adopts a crossed regular twisted structure with superfine copper wires, multiple units and small pitches, so that the conductor has the characteristic of high flexibility, and the low-resistance, energy-saving and high-current-carrying capacity of the cable is ensured; the insulating material adopts heat-resistant silicon rubber material, so that the cable has the characteristics of high flexibility, is easy to install when in use, can resist the high temperature of +200 ℃, and has the characteristics of excellent ozone resistance, oil resistance, weather resistance, low temperature resistance, environmental protection and the like; the coating layer is made of special liquid silicone rubber, so that the cable has the characteristics of high flexibility and high wear resistance, and simultaneously prevents the volatilization of siloxane molecules, thereby ensuring the normal use of the electronic elements of the automobile circuit.)

1. A novel automobile silicon rubber cable is characterized in that: the method comprises the following steps:

the central conductor is formed by crossing and regularly twisting a plurality of copper wires;

the insulating layer is made of heat-resistant silicon rubber and is uniformly extruded outside the central conductor;

and the coating layer is made of special liquid silicone rubber and is uniformly coated outside the insulating layer.

2. The novel automobile silicone rubber cable according to claim 1, wherein: the method is characterized in that: the copper wire is annealed bare copper or tinned copper.

3. The novel automobile silicone rubber cable according to claim 2, wherein: the thickness of the coating layer is 0.2 mm.

4. A manufacturing method of a novel automobile silicon rubber cable is characterized by comprising the following steps: the method comprises the following steps:

step S1, manufacturing a center conductor: a plurality of copper wires are crossed and normally twisted together;

step S2, manufacturing an insulating layer: a layer of heat-resistant silicon rubber is uniformly extruded outside the central conductor;

step S3, preparing a coating layer: and a layer of special liquid silicone rubber is uniformly coated outside the insulating layer.

5. The manufacturing method of the novel automobile silicone rubber cable according to claim 4, characterized in that: the thickness of the coating layer is 0.2 mm.

6. The manufacturing method of the novel automobile silicone rubber cable according to claim 4, characterized in that: the copper wire is annealed bare copper or tinned copper.

Technical Field

The invention relates to the technical field of cables for automobiles, in particular to a novel automobile silicon rubber cable and a manufacturing method thereof.

Background

The silicon rubber insulated cable has the advantage of 200 ℃ due to high rated temperature, and is widely applied to automobile wires.

In practical application, however, silicone rubber cable is easy to volatilize siloxane molecules in a heated state, and the siloxane molecules react to generate SiO under the action of electric arc in an electric contact space in an automobile₂And SiC, which, in long-term use, ash deposits on the electrically conductive contact areas to form an insulating layer, thereby leading to electrical contact failure of the automotive circuit electronic components.

Disclosure of Invention

The invention aims to solve the technical problem of providing a novel automobile silicone rubber cable and a manufacturing method thereof, which improve the temperature resistance and bending performance of the cable, prevent siloxane molecules from volatilizing and meet the operation safety of the cable and circuit electronic components.

The invention is realized by the following steps: a novel automotive silicone rubber cable comprises:

the central conductor is formed by crossing and regularly twisting a plurality of copper wires;

the insulating layer is made of heat-resistant silicon rubber and is uniformly extruded outside the central conductor;

and the coating layer is made of special liquid silicone rubber and is uniformly coated outside the insulating layer.

Further, the copper wire is annealed bare copper or tinned copper.

Further, the thickness of the coating layer is 0.2 mm.

The invention also provides a manufacturing method of the novel automobile silicone rubber cable, which comprises the following steps:

step S1, manufacturing a center conductor: a plurality of copper wires are crossed and normally twisted together;

step S2, manufacturing an insulating layer: a layer of heat-resistant silicon rubber is uniformly extruded outside the central conductor;

step S3, preparing a coating layer: and a layer of special liquid silicone rubber is uniformly coated outside the insulating layer.

Further, the thickness of the coating layer is 0.2 mm.

Further, the copper wire is annealed bare copper or tinned copper.

The invention has the following advantages: a novel automotive silicone rubber cable comprises: the central conductor is formed by crossing and regularly twisting a plurality of copper wires; the insulating layer is made of heat-resistant silicon rubber and is uniformly extruded outside the central conductor; and the coating layer is made of special liquid silicone rubber and is uniformly coated outside the insulating layer. The central conductor adopts a crossed regular twisted structure with superfine copper wires, multiple units and small pitches, so that the conductor has the characteristic of high flexibility, and the low-resistance, energy-saving and high-current-carrying capacity of the cable is ensured; the insulating material adopts heat-resistant silicon rubber material, so that the cable has the characteristics of high flexibility, is easy to install when in use, can resist the high temperature of +200 ℃, and has the characteristics of excellent ozone resistance, oil resistance, weather resistance, low temperature resistance, environmental protection and the like; the coating layer is made of special liquid silicone rubber, so that the cable has the characteristics of high flexibility and high wear resistance, and simultaneously prevents the volatilization of siloxane molecules, thereby ensuring the normal use of the electronic elements of the automobile circuit.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic cross-sectional view of the novel automobile silicone rubber cable of the invention.

Fig. 2 is a flow chart of the manufacturing method of the present invention.

Description of reference numerals:

a central conductor 1;

an insulating layer 2;

a coating layer 3.

Detailed Description

In the description of the invention, it is to be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings only for the convenience of describing the invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the invention.

In the description of the invention, it is to be noted that, unless explicitly stated or limited otherwise, the terms "disposed", "connected" and "connected" are to be understood broadly, e.g. 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 in specific cases to those skilled in the art.

The invention concept of the invention is as follows:

the special liquid silicone rubber with low volatility has extremely low volatility and is lower than the heat-resistant silicone rubber of the insulating layer 2, and the insulating layer 2 is wrapped by the special liquid silicone rubber to prevent the volatilization of siloxane molecules.

1. The central conductor 1 adopts a crossed regular twisted structure with superfine copper wires, multiple units and small pitch, so that the conductor has the characteristic of high flexibility, and the low-resistance, energy-saving and high-current-carrying capacity of the cable is ensured;

2. the insulating layer 2 is made of heat-resistant silicone rubber materials, so that the cable is guaranteed to have the characteristic of high flexibility and easy to install when in use, can resist the high temperature of +200 ℃, and has the excellent characteristics of ozone resistance, oil resistance, weather resistance, low temperature resistance, environmental protection and the like;

3. the coating layer 3 is made of special liquid silicone rubber, so that the cable has the characteristics of high flexibility and high wear resistance, and simultaneously prevents the volatilization of siloxane molecules, thereby ensuring the normal use of the electronic elements of the automobile circuit.

In conclusion, the abrasion resistance and the operation safety of the cable are improved, and various technical requirements of product application are met.

Please refer to fig. 1 and fig. 2.

A novel automotive silicone rubber cable comprises:

the central conductor 1 is formed by crossing and regularly twisting a plurality of copper wires; the central conductor 1 adopts a crossed regular twisted structure with superfine copper wires, multiple units and small pitch, so that the conductor has the characteristic of high flexibility, and the low-resistance, energy-saving and high-current-carrying capacity of the cable is ensured;

the insulating layer 2 is made of heat-resistant silicon rubber and is uniformly extruded outside the central conductor 1; the insulating layer 2 is made of heat-resistant silicone rubber materials, so that the cable is guaranteed to have the characteristic of high flexibility and easy to install when in use, can resist the high temperature of +200 ℃, and has the excellent characteristics of ozone resistance, oil resistance, weather resistance, low temperature resistance, environmental protection and the like;

and the coating layer 3 is made of special liquid silicone rubber and is uniformly coated outside the insulating layer 2. In a specific embodiment, the special liquid silicone rubber isLR 5040/70B liquid silicone rubber. The coating layer 3 is made of special liquid silicone rubber, so that the cable has the characteristics of high flexibility and high wear resistance, and simultaneously prevents the volatilization of siloxane molecules, thereby ensuring the normal use of the electronic elements of the automobile circuit.

The copper wire is annealed bare copper or tinned copper.

The thickness of the coating layer 3 is 0.2 mm.

A manufacturing method of a novel automobile silicone rubber cable comprises the following steps:

step S1, manufacturing the center conductor 1: a plurality of copper wires are crossed and normally twisted together; the central conductor 1 adopts a crossed regular twisted structure with superfine copper wires, multiple units and small pitch, so that the conductor has the characteristic of high flexibility, and the low-resistance, energy-saving and high-current-carrying capacity of the cable is ensured; in a specific embodiment, the monofilament has a maximum diameter of 0.394mm and a minimum diameter of 0.388 mm; the central conductor 1 comprises 276 annealed bare copper wires with the diameter of 0.388mm, adopts a 1+4+15 structure, and has 10 middle strands; a second layer of 4 strands, each of 14; 15 outermost strands, 14 in each;

step S2, manufacturing the insulating layer 2: a layer of heat-resistant silicon rubber is uniformly extruded outside the central conductor 1; the insulating layer 2 is made of heat-resistant silicone rubber materials, so that the cable is guaranteed to have the characteristic of high flexibility and easy to install when in use, can resist the high temperature of +200 ℃, and has the excellent characteristics of ozone resistance, oil resistance, weather resistance, low temperature resistance, environmental protection and the like;

step S3, preparing coating layer 3: and uniformly coating a layer of special liquid silicon rubber outside the insulating layer 2. In a specific embodiment, the special liquid silicone rubber isLR 5040/70B liquid silicone rubber. The coating layer 3 is made of special liquid silicone rubber, so that the cable has the characteristics of high flexibility and high wear resistance, and simultaneously prevents the volatilization of siloxane molecules, thereby ensuring the normal use of the electronic elements of the automobile circuit.

The thickness of the coating layer 3 is 0.2 mm.

The copper wire is annealed bare copper or tinned copper.

Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.