New energy automobile charging cable

Abstract

The utility model relates to the technical field of charging cables, in particular to a new energy automobile charging cable which comprises at least one live wire conductor and a corrugated assembly arranged on the outer layer of the live wire conductor, and an elastic supporting assembly is arranged on the outer layer of the corrugated assembly. An insulating layer, an armor layer and a protective layer are sequentially arranged on the outer layer of the elastic supporting assembly, and a zero line and a ground line are further arranged in the insulating layer. The objective of the utility model is to reduce cable damage caused by repeated pulling and twisting of a cable and prolong the service life of the charging cable.

Description

Technical Field

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

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] At present, charging piles are being widely constructed. The cables used in the electric vehicle conductive charging system are the basic components of electric vehicle charging facilities, and their performance has an important impact on the entire charging process. Charging cables can not only transmit electric energy to electric vehicles, but also provide data transmission for the charging panel to display information such as charging status and safe current. It is a composite power transmission product that integrates power, data and signal transmission. Charging cables can be used in charging piles, charging stations and portable charging systems, but the charging cables of new energy vehicles in outdoor parking lots are exposed to the environment for a long time, and the charging cables will be repeatedly pulled, twisted or crushed by cars. Long-term use can easily cause damage to the cable core and affect power transmission.

[0004] Therefore, those skilled in the art are committed to developing a new energy vehicle charging cable to reduce cable damage caused by repeated pulling and twisting of the cable and extend the service life of the charging cable. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a new energy vehicle charging cable to reduce cable damage caused by repeated pulling and twisting of the cable and extend the service life of the charging cable.

[0006] The utility model solves the above technical problems by the following means:

[0007] A new energy vehicle charging cable comprises at least one live conductor and a corrugated component arranged on the outer layer of the live conductor, the outer layer of the corrugated component is provided with an elastic support component, the outer layer of the elastic support component is provided with an insulating layer, an armor layer and a protective layer in sequence, and a neutral wire and a ground wire are also provided in the insulating layer.

[0008] According to the above technical means, the corrugated component sleeved on the outer layer of the live wire conductor can effectively reduce the damage to the live wire conductor caused by repeated pulling and twisting of the cable, and the elastic support component arranged on the outer layer of the corrugated component can reduce the damage to the internal live wire conductor caused by the rolling of the car.

[0009] Furthermore, the corrugated component includes a corrugated copper tube, and the inner layer of the corrugated copper tube is in contact with the live conductor.

[0010] According to the above technical means, the corrugated copper tube can be used as a conductor, and at the same time, the live wire conductor in the corrugated copper tube is protected when the cable is repeatedly pulled and twisted.

[0011] Furthermore, an elastic insulator is filled between the outer layer of the corrugated component and the elastic support component.

[0012] According to the above technical means, the elastic insulator is not only used to support the elastic supporting component, but also used to protect the live conductor and insulation.

[0013] Furthermore, the elastic support assembly includes a first support member, a second support member and a third support member which are arranged in sequence along the circumferential direction, the first support member, the second support member and the third support member are all arc-shaped, and the first support member, the second support member and the third support member are all connected to support ribs in the middle of the inner side, and the ends of the three support ribs intersect at the center of the cable.

[0014] According to the above technical means, when a car runs over a cable, the supporting members are close to each other so that less weight of the vehicle acts directly on the live conductor, thereby extending the service life of the live conductor.

[0015] Furthermore, there is a gap between the first support member and the second support member, between the second support member and the third support member, and between the third support member and the first support member, and the width of the gap is 0.5 mm to 1.5 mm.

[0016] According to the above technical means, the appropriate gap is conducive to the displacement of each support member and reduces the load-bearing of the live conductor.

[0017] Furthermore, at least one control cable is arranged in the insulating layer.

[0018] According to the above technical means, the control cable is used to transmit information between the battery pack and the charging device, while protecting the circuit.

[0019] Furthermore, at least one spare cable is arranged in the insulating layer.

[0020] According to the above technical means, the spare cable is mainly used as a backup for the neutral wire, ground wire or control cable.

[0021] Furthermore, three evenly arranged live conductors are arranged in the elastic support assembly.

[0022] According to the above technical means, three evenly arranged live wire conductors are used to facilitate rapid charging of the battery pack.

[0023] Furthermore, the insulating layer includes a mica tape layer and a glass fiber tape layer.

[0024] According to the above technical means, the mica tape layer and the glass fiber tape layer improve the insulation strength of the insulation layer.

[0025] Furthermore, the protective layer is made of thermoplastic polyether polyurethane.

[0026] According to the above technical means, thermoplastic polyether polyurethane improves the protective ability of the protective layer.

[0027] The utility model adopting the above scheme has the following beneficial effects:

[0028] 1. The corrugated tube assembly sleeved on the outer layer of the live wire conductor can effectively reduce the damage to the live wire conductor caused by repeated pulling and twisting of the cable. The elastic support assembly arranged on the outer layer of the corrugated assembly reduces the damage to the internal live wire conductor caused by the car running over it, thereby extending the service life of the live wire.

[0029] 2. The elastic support assembly uses multiple independent support parts. When the cable is crushed, it will deviate to form a support cylinder to protect the internal live wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present application may be further illustrated by non-limiting examples given in the accompanying drawings;

[0031] Figure 1 This is a schematic diagram of a new energy vehicle charging cable in an embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of the cross-sectional plan structure of the new energy vehicle charging cable in the embodiment of the present application.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Live conductor; 2. Corrugated assembly; 3. Elastic support assembly; 4. Insulation layer; 5. Armor layer; 6. Protective layer; 7. Corrugated copper tube; 8. Elastic insulator; 9. First support member; 10. Second support member; 11. Third support member; 12. Support rib; 13. Neutral wire; 14. Ground wire; 15. Control cable; 16. Spare cable. DETAILED DESCRIPTION

[0035] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0036] 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 operate 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.

[0037] 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.

[0038] like Figure 1 and Figure 2 As shown, an embodiment of the present application proposes a new energy vehicle charging cable, comprising at least one live wire conductor 1 and a corrugated component 2 arranged on the outer layer of the live wire conductor 1, the outer layer of the corrugated component 2 is provided with an elastic support component 3, the outer layer of the elastic support component 3 is sequentially provided with an insulating layer 4, an armor layer 5 and a protective layer 6, and a neutral wire 13 and a ground wire 14 are also provided in the insulating layer 4.

[0039] In this embodiment, the corrugated component 2 sleeved on the outer layer of the live conductor 1 can effectively reduce the damage to the live conductor 1 caused by repeated pulling and twisting of the cable, and the elastic support component 3 arranged on the outer layer of the corrugated component 2 can reduce the damage to the internal live conductor 1 caused by the rolling of the car.

[0040] like Figure 1 , Figure 2 As shown, in some embodiments, three evenly arranged live conductors 1 are arranged in the elastic support component 3 to form an isosceles triangle. The corrugated component 2 includes a corrugated copper tube 7, the inner layer of the corrugated copper tube 7 is in contact with the live conductor 1, and according to actual needs, grease can be filled between the corrugated copper tube 7 and the live conductor 1. An elastic insulator 8 is filled between the outer layer of the corrugated component 2 and the elastic support component 3, and the elastic insulator 8 can be made of ceramic silicone rubber.

[0041] The elastic support assembly 3 includes a first support member 9, a second support member 10 and a third support member 11 which are arranged in sequence along the circumferential direction, and the first support member 9, the second support member 10 and the third support member 11 are all in arc shape, and the first support member 9, the second support member 10 and the third support member 11 are all connected to the middle of the inner side with a support rib 12, and the support rib 12 can be an elastic sheet, and the ends of the three support ribs 12 intersect at the center of the cable, and there are gaps between the first support member 9 and the second support member 10, the second support member 10 and the third support member 11, and the third support member 11 and the first support member 9, and the width of the gap is 0.5mm to 1.5mm. In the process of the car rolling over the cable, the first support member 9, the second support member 10 and the third support member 11 are offset and contracted inward, so that the gap between the ends of the two adjacent support members is gradually reduced and abutted against each other, forming a support cylinder to withstand the gravity of the vehicle and prevent the internal live conductor 1 from being crushed. At the same time, there is a suitable gap between each support member, which is conducive to the movement, bending and twisting of the charging cable. When the cable is not crushed, the elastic supporting ribs 12 and the elastic insulator 8 push each supporting member to its original position.

[0042] In another embodiment, a support tube is provided at the center of the cable, and a temperature-sensing optical fiber is arranged in the support tube to sense the temperature of the live conductor 1 and transmit the monitoring information to the controller to avoid a short circuit of the cable caused by excessive temperature.

[0043] The insulating layer 4 includes a mica tape layer and a glass fiber tape layer. The glass fiber tape layer is wound around the outer layer of the elastic support component 3 before the mica tape layer is wound around it to improve the insulation strength of the insulating layer 4. At least one control cable 15 is arranged in the insulating layer 4. The control cable 15 is used to transmit information between the battery pack and the charging device and protect the circuit. At least one spare cable 16 is arranged in the insulating layer 4. The spare cable 16 is mainly used as a spare for the neutral wire 13, the ground wire 14 or the control cable 15. The armor layer 5 can be made of a metal braided mesh to enhance the overall strength of the cable. The protective layer 6 is made of thermoplastic polyether polyurethane.

[0044] The above is a detailed introduction to a new energy vehicle charging cable provided by the present application. The description of the specific embodiment is only used to help understand the method and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present utility model.

[0045] It should be noted that the phrases "one embodiment", "embodiment", "some optional embodiments", "exemplary embodiments", "some embodiments", etc. mentioned in the specification indicate that the described embodiment may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0046] 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 new energy vehicle charging cable, characterized in that: The invention comprises at least one live conductor (1) and a corrugated component (2) arranged on the outer layer of the live conductor (1); the outer layer of the corrugated component (2) is provided with an elastic support component (3); the outer layer of the elastic support component (3) is provided with an insulating layer (4), an armor layer (5) and a protective layer (6) in sequence; and a neutral wire (13) and a ground wire (14) are also provided in the insulating layer (4).

2. The new energy vehicle charging cable according to claim 1, characterized in that: The corrugated component (2) comprises a corrugated copper tube (7), the inner layer of the corrugated copper tube (7) being in contact with the live conductor (1).

3. The new energy vehicle charging cable according to claim 1, characterized in that: An elastic insulator (8) is filled between the outer layer of the corrugated component (2) and the elastic support component (3).

4. The new energy vehicle charging cable according to claim 1, characterized in that: The elastic support assembly (3) comprises a first support member (9), a second support member (10) and a third support member (11) which are arranged in sequence along a circumferential direction; the first support member (9), the second support member (10) and the third support member (11) are all in an arc shape; the first support member (9), the second support member (10) and the third support member (11) are all connected to a support rib (12) at the middle of the inner side; the ends of the three support ribs (12) intersect at the center of the cable.

5. The new energy vehicle charging cable according to claim 4, characterized in that: There is a gap between the first support member (9) and the second support member (10), between the second support member (10) and the third support member (11), and between the third support member (11) and the first support member (9), and the width of the gap is 0.5 mm to 1.5 mm.

6. The new energy vehicle charging cable according to claim 1, characterized in that: At least one control cable (15) is arranged in the insulating layer (4).

7. The new energy vehicle charging cable according to claim 1, characterized in that: At least one spare cable (16) is arranged in the insulating layer (4).

8. The new energy vehicle charging cable according to claim 1, characterized in that: Three evenly arranged live conductors (1) are arranged in the elastic support assembly (3).

9. The new energy vehicle charging cable according to claim 1, characterized in that: The insulating layer (4) comprises a mica tape layer and a glass fiber tape layer.

10. The new energy vehicle charging cable according to claim 1, characterized in that: The protective layer (6) is made of thermoplastic polyether polyurethane.

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