Cable suitable for charging new energy automobile

Abstract

The utility model relates to the technical field of new energy automobile charging, and discloses a cable suitable for new energy automobile charging, which comprises a wire core, a ground wire and a protective layer, the wire core and the ground wire are both arranged in the protective layer, an insulating layer is wrapped outside the wire core, a metal shielding layer is wrapped outside the insulating layer, and the protective layer is arranged outside the metal shielding layer. A filling layer is arranged between the protective layer and the metal shielding layer, the cross section of the protective layer is flat, and wear-resistant strips are arranged outside the protective layer. According to the utility model, through the protection layer with the flat cross section, the contact area between the cable and the ground can be increased, the weight of the cable is fixed, the pressure on the cable per unit area can be reduced after the contact area is increased, the wear of the cable can be reduced, and thus the possibility that the cable is damaged can be reduced; and through the arrangement of the wear-resistant strips, the protection layer can be protected, and the wear of the protection layer is reduced, so that the possibility that the cable is damaged can be further reduced, and the overall service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle charging, in particular to a cable suitable for charging new energy vehicles. Background Art

[0002] Cars are an important means of transportation in modern society, providing people with convenient and comfortable travel services. However, traditional fuel vehicles produce a large amount of harmful exhaust gas during use and increase dependence on non-renewable oil resources. In terms of energy, the current world car ownership is about 800 million, and it is increasing at a rate of 30 million vehicles per year. It is expected that by 2020, the global car ownership will reach 1.2 billion, and the main increase will come from developing countries. There is still a big gap between the research and development level and independent innovation ability of traditional energy vehicles in my country and the world level. But in terms of new energy vehicles, my country is not lagging behind. Since the beginning of the new century, new energy vehicle technology, mainly characterized by automobile power electrification, has made rapid progress. In terms of energy technology, the development of new energy vehicles can promote the development of renewable energy and new energy technologies and enhance my country's competitiveness in energy technology.

[0003] New energy vehicles are powered by electricity, so we need to vigorously build new energy vehicle charging facilities. Charging facilities and new energy vehicles need cables to connect, that is, charging pile cables. When the car is charging, the charging pile cable is usually directly placed on the ground like the refueling pipe at a gas station, dragged and bent everywhere. This part of the charging pile cable is easily damaged by people's trampling and squeezing. As the number of uses increases, this part is also easily damaged by wear and tear, thereby shortening the overall service life of the cable. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a cable suitable for charging new energy vehicles, which solves the problem that the cable is easily damaged by wear and tear, thereby shortening the overall service life of the cable.

[0005] The utility model solves the above technical problems through the following technical means: a cable suitable for charging new energy vehicles, including a wire core, a ground wire and a protective layer, the wire core and the ground wire are both arranged in the protective layer, the wire core is wrapped with an insulating layer, the insulating layer is wrapped with a metal shielding layer, the protective layer is arranged outside the metal shielding layer, and a filling layer is arranged between the protective layer and the metal shielding layer, the cross-section of the protective layer is flat, and a wear-resistant strip is arranged outside the protective layer.

[0006] Furthermore, it also includes a plurality of tensile wires, which are evenly distributed around the wire core and are all woven from nylon ropes.

[0007] Furthermore, the tensile wire and the ground wire are both wrapped with a first lining layer, and the first lining layer is against the filling.

[0008] Furthermore, it also includes a second lining layer, which is arranged between the protective layer and the filling layer.

[0009] Furthermore, it also includes a plurality of metal springs, which are all arranged in the cable, and the wire core is arranged between every two metal springs, and the side walls of the plurality of metal springs are all against the filling layer.

[0010] Furthermore, the metal shielding layer is woven from copper wires.

[0011] Furthermore, the wear-resistant strip is made of butadiene rubber, and the protective layer is made of EPDM rubber.

[0012] Beneficial effects of the utility model:

[0013] 1. The protective layer with a flat cross-section can increase the contact area between the cable and the ground. The weight of the cable is fixed. Increasing the contact area can reduce the pressure per unit area of ​​the cable, reduce the wear of the cable, and thus reduce the possibility of damage to the cable. The provision of wear-resistant strips can protect the protective layer and reduce the wear of the protective layer, thereby further reducing the possibility of damage to the cable and increasing the overall service life of the cable.

[0014] 2. The cable cross-section is a flat protective layer, which can achieve a smaller bending radius of the cable, improve the cable's ability to resist bending, and reduce the possibility of the cable being damaged by bending, thereby increasing the service life of the cable.

[0015] 3. By setting the metal spring, the compression resistance of the cable can be improved, and the possibility of the core being damaged due to stepping on or squeezing the cable can be reduced, thereby increasing the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 This is a schematic diagram of the structure of a cable suitable for charging new energy vehicles in the utility model;

[0018] in:

[0019] 1. Wire core; 2. Insulation layer; 3. Metal shielding layer; 4. Ground wire; 5. Tensile wire; 6. First lining layer; 7. Filling layer; 8. Metal spring sheet; 9. Second lining layer; 10. Protective layer; 11. Wear-resistant strip. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0021] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present 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. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0023] like Figure 1 As shown, the utility model is a cable suitable for charging new energy vehicles, including two wire cores 1, a ground wire 4 and a protective layer 10, the two wire cores 1 and the ground wire 4 are both arranged in the protective layer 10, the two wire cores 1 are both wrapped with an insulating layer 2, the insulating layer 2 is both wrapped with a metal shielding layer 3, the metal shielding layer 3 is woven from copper wire, the protective layer 10 is arranged outside the metal shielding layer 3, and a filling layer 7 is arranged between the protective layer 10 and the metal shielding layer 3, a second lining layer 9 is arranged between the protective layer 10 and the filling layer 7, the cross-section of the protective layer 10 is flat, and the upper and lower surfaces of the protective layer 10 are glued with wear-resistant strips 11, the wear-resistant strips 11 are made of butadiene rubber, and the protective layer 10 is made of ethylene propylene rubber.

[0024] like Figure 1As shown, two groups of tensile wires 5 and three metal springs 8 are also provided in the cable. One group of tensile wires 5 are evenly distributed around a wire core 1. The two groups of tensile wires 5 are woven from nylon ropes. The two groups of tensile wires 5 and the ground wire 4 are wrapped with a first inner lining layer 6. The first inner lining layer 6 is against the filling. The three metal springs 8 are arranged in the cable, and each wire core 1 is arranged between every two metal springs 8. The side walls of the three metal springs 8 are against the filling layer 7.

[0025] The use principle of the utility model is as follows: when using the cable, the wear-resistant strip 11 outside the cable is in contact with the ground first. The wear-resistant strip 11 is made of butadiene rubber (BR). Butadiene rubber has excellent wear resistance and elasticity, less heat generation, good low temperature resistance, and good flex resistance. It can protect the protective layer 10 and reduce the wear of the protective layer 10. The protective layer 10 is made of EPDM rubber. EPDM rubber has excellent aging resistance and electrical insulation. EPDM rubber has good elasticity, tensile strength and wear resistance, which can improve the service life of the cable. The cross section of the cable is flat, which can achieve a smaller bending radius of the cable, improve the cable's ability to resist bending, reduce the possibility of the cable being damaged by bending, and can further improve the service life of the cable.

[0026] The two groups of tensile wires 5 in the cable can greatly increase the tensile strength of the cable and prevent the core 1 from being broken due to unexpected situations. The arrangement of the metal spring 8 can improve the compressive strength of the cable. When the cable is stepped on or squeezed, the external pressure will act on the metal spring 8, reducing the possibility of the core 1 being damaged due to stepping on or squeezing the cable, thereby increasing the service life of the cable.

[0027] By setting the first lining layer 6 and the second lining layer 9, the wear of the ground wire 4, the tensile wire 5 and the protective layer 10 on the filling layer 7 can be reduced, so that the structure inside the cable can be more stable and the service life of the cable can be improved. By setting the metal shielding layer 3, the influence of the cable on external electrical equipment can be reduced.

[0028] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A cable suitable for charging new energy vehicles, characterized by: It includes a wire core, a ground wire and a protective layer, the wire core and the ground wire are both arranged in the protective layer, the wire core is wrapped with an insulating layer, the insulating layer is wrapped with a metal shielding layer, the protective layer is arranged outside the metal shielding layer, and a filling layer is arranged between the protective layer and the metal shielding layer, the cross-section of the protective layer is flat, and a wear-resistant strip is arranged outside the protective layer.

2. A cable suitable for charging new energy vehicles according to claim 1, characterized in that: It also includes a plurality of tensile wires, which are evenly distributed around the wire core and are all woven from nylon ropes.

3. A cable suitable for charging new energy vehicles according to claim 2, characterized in that: The tensile wire and the ground wire are both wrapped with a first lining layer, and the first lining layer is against the filling.

4. A cable suitable for charging new energy vehicles according to claim 1, characterized in that: It also includes a second lining layer, which is arranged between the protective layer and the filling layer.

5. A cable suitable for charging new energy vehicles according to claim 1, characterized in that: It also includes a plurality of metal springs, which are all arranged in the cable, and the wire core is arranged between every two metal springs, and the side walls of the plurality of metal springs are against the filling layer.

6. A cable suitable for charging new energy vehicles according to claim 1, characterized in that: The metal shielding layer is woven from copper wires.

7. A cable suitable for charging new energy vehicles according to claim 1, characterized in that: The wear-resistant strip is made of butadiene rubber, and the protective layer is made of ethylene propylene diene monomer rubber.

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