Charging pile cable

Abstract

The utility model discloses a charging pile cable, which comprises an outer sheath, and at least two positive wires, at least two negative wires and a plurality of signal wire groups which are arranged in the outer sheath, the at least two positive wires and the at least two negative wires are distributed along the radial circumference of the cable, the at least two positive wires are arranged adjacently, and the at least two negative wires are arranged adjacently; a first cavity is formed between every two adjacent positive wires and the inner wall of the outer sheath, a second cavity is formed between every two adjacent negative wires and the inner wall of the outer sheath, a third cavity is formed between every two adjacent positive wires and negative wires, the third cavities are arranged close to the inner wall of the outer sheath, and the first cavities, the second cavities and the third cavities are respectively used for accommodating signal wire groups. The cable can be lightened, the diameter of the cable is reduced, heat dissipation of the cable is facilitated, and the problem that the cable is prone to overload is solved.

Description

Technical Field

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

[0002] A charging pile is a charging facility for electric vehicles. The charging pile is provided with a charging cable, and a charging gun is arranged at the end of the charging cable. The charging cable is plugged into the electric vehicle through the charging gun for charging.

[0003] Conventionally, the charging cable has a positive power transmission line, a negative power transmission line and a plurality of signal lines. The plurality of signal lines are centrally arranged between the positive power transmission line and the negative power transmission line.

[0004] However, the existing positive power transmission line and negative power transmission line have large wire diameters, resulting in a large amount of unused space inside the charging cable, making the overall diameter of the charging cable large. Moreover, the wire diameters of the power transmission lines are relatively thick, making it difficult to dissipate heat and prone to overload. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a charging pile cable, which can make the cable lightweight, reduce the cable diameter, is beneficial to cable heat dissipation, and solves the problem that the cable is prone to overload.

[0006] A charging pile cable according to an embodiment of the first aspect of the utility model includes an outer sheath, and at least two positive wires, at least two negative wires and a plurality of signal line groups arranged inside the outer sheath. The at least two positive wires and the at least two negative wires are distributed circumferentially along the radial direction of the cable. The at least two positive wires are arranged adjacent to each other, and the at least two negative wires are arranged adjacent to each other. A first cavity is formed between two adjacent positive wires and the inner wall of the outer sheath. A second cavity is formed between two adjacent negative wires and the inner wall of the outer sheath. A third cavity is formed between the adjacent positive wire and the negative wire. The third cavity is arranged close to the inner wall of the outer sheath. The first cavity, the second cavity and the third cavity are respectively used for accommodating the signal line groups.

[0007] A charging pile cable according to an embodiment of the utility model has at least the following beneficial effects:

[0008] 1. The utility model transmits electric energy by arranging at least two positive wires and at least two negative wires. The traditional one positive wire is split into at least two positive wires, and one negative wire is split into at least two negative wires. Under the condition of the same current, the two split positive wires and two negative wires are easier to dissipate heat, so that the temperatures of the positive wire and the negative wire are not high, the resistances of the positive wire and the negative wire are also lower, and the problem of overload is not likely to occur. Moreover, the wire diameters of the split positive wire and negative wire can be made smaller, which is beneficial to reducing the wire diameter of the cable.

[0009] 2. The utility model arranges several signal wire groups that were originally centrally arranged in the first cavity, the second cavity, and the third cavity respectively by arranging the first cavity, the second cavity, and the third cavity, so that the signal wire groups can make full use of the space formed between the positive wire, the negative wire, and the inner wall of the outer sheath, optimize the arrangement of the signal wire groups, which is beneficial to reducing the wire diameter of the cable, making the cable lighter, and reducing the manufacturing cost of the cable.

[0010] According to some embodiments of the utility model, the signal wire group includes a first signal wire, a second signal wire, a third signal wire, and a fourth signal wire. The first signal wire and the second signal wire are twisted together, and a shielding layer is arranged on the outer surface after they are twisted.

[0011] According to some embodiments of the utility model, the shielding layer is formed by braiding tinned copper.

[0012] According to some embodiments of the utility model, it further includes non-woven fabric, and the non-woven fabric is used to wrap the positive wire, the negative wire, and the signal wire group together.

[0013] According to some embodiments of the utility model, the gap between the positive wire, the negative wire, and the signal wire group is filled with hemp.

[0014] According to some embodiments of the utility model, the material of the outer sheath is TPU.

[0015] According to some embodiments of the utility model, both the positive wire and the negative wire have a conductor and an insulating sleeve, and the insulating sleeve is sleeved on the outer surface of the conductor.

[0016] According to some embodiments of the utility model, the material of the insulating sleeve is cross-linked polyethylene.

[0017] The additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0019] Figure 1 It is a schematic structural diagram of a charging pile cable according to an embodiment of the present utility model.

[0020] Reference numerals: 100 - outer sheath, 110 - positive line, 120 - negative line, 130 - signal line group, 140 - first cavity, 150 - second cavity, 160 - third cavity, 170 - first signal line, 180 - second signal line, 190 - third signal line, 200 - fourth signal line, 210 - shielding layer, 220 - non-woven fabric, 230 - wire, 240 - insulating sleeve. Detailed implementation manners

[0021] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0022] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0023] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] The following describes a charging pile cable according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0026] Referring to Figure 1 , a charging pile cable according to an embodiment of the present invention includes an outer sheath 100 and at least two positive wires 110, at least two negative wires 120, and several signal wire groups 130 disposed inside the outer sheath 100. The at least two positive wires 110 and the at least two negative wires 120 are distributed along the radial circumference of the cable. The at least two positive wires 110 are adjacent to each other, and the at least two negative wires 120 are adjacent to each other.

[0027] It should be noted that terminals are ultrasonically welded to the ends of the positive wire 110, the negative wire 120, and the signal wire group 130. The positive wire 110, the negative wire 120, and the signal wire group 130 are electrically connected to other components through the terminals.

[0028] Specifically, a first cavity 140 is formed between two adjacent positive wires 110 and the inner wall of the outer sheath 100, a second cavity 150 is formed between two adjacent negative wires 120 and the inner wall of the outer sheath 100, and a third cavity 160 is formed between an adjacent positive wire 110 and negative wire 120. The third cavity 160 is arranged close to the inner wall of the outer sheath 100. The first cavity 140, the second cavity 150, and the third cavity 160 are respectively used to accommodate the signal wire group 130.

[0029] In some embodiments of the present invention, the signal wire group 130 includes a first signal wire 170, a second signal wire 180, a third signal wire 190, and a fourth signal wire 200. The first signal wire 170 and the second signal wire 180 are twisted together, and a shielding layer 210 is provided on the outer surface after the two are twisted.

[0030] It can be understood that the twisted first signal wire 170 and second signal wire 180 are located between the third signal wire 190 and the fourth signal wire 200, which is beneficial for the signal wire group 130 to make full use of the space formed between the positive wire 110, the negative wire 120, and the inner wall of the outer sheath 100, and reduces the overall wire diameter of the cable.

[0031] At the same time, the shielding layer 210 can improve the anti-interference ability of the first signal wire 170 and the second signal wire 180.

[0032] In a further embodiment of the present invention, the shielding layer 210 is formed by tin-plated copper braiding. The wire diameter of the tin-plated copper is 0.12 mm, and the shielding rate is 60%.

[0033] In some embodiments of the present invention, it further includes a non-woven fabric 220, and the non-woven fabric 220 is used to wrap the positive wire 110, the negative wire 120, and the signal wire group 130 together.

[0034] Therefore, using the non-woven fabric 220 to wrap at least two positive wires 110, at least two negative wires 120 and multiple groups of signal wire groups 130 together is not easy to loosen, which is beneficial to the extrusion of the outer sheath 100.

[0035] In some embodiments of the present invention, the gaps between the positive wire 110, the negative wire 120 and the signal wire group 130 are filled with hemp, thus, the hemp is beneficial to improving the tensile strength of the cable.

[0036] In some embodiments of the present invention, the material of the outer sheath 100 is TPU.

[0037] The Chinese name of TPU is thermoplastic polyurethane rubber. TPU has excellent wear resistance, high hardness and high strength, making the outer surface of the cable not easy to be damaged.

[0038] In some embodiments of the present invention, both the positive wire 110 and the negative wire 120 have a conductor 230 and an insulating sleeve 240. The insulating sleeve 240 is sleeved on the outer surface of the conductor 230, which can prevent the positive wire 110 and the negative wire 120 from short-circuiting.

[0039] In some embodiments of the present invention, the material of the insulating sleeve 240 is cross-linked polyethylene. The cross-linked polyethylene material has good heat resistance and high insulation resistance, which can meet the insulation requirements and high-temperature requirements of the cable.

[0040] Therefore, this embodiment has the following effects:

[0041] 1. By setting at least two positive wires 110 and at least two negative wires 120, the present invention uses at least two positive wires 110 and at least two negative wires 120 to transmit electric energy. The traditional one positive wire 110 is split into at least two positive wires 110, and one negative wire 120 is split into at least two negative wires 120. In the case of passing the same current, the two split positive wires 110 and two negative wires 120 are easier to dissipate heat, so that the temperatures of the positive wire 110 and the negative wire 120 are not high, the resistances of the positive wire 110 and the negative wire 120 are also lower, and it is not easy to have an overload problem. Moreover, the wire diameters of the split positive wire 110 and negative wire 120 can be made smaller, which is beneficial to reducing the wire diameter of the cable.

[0042] 2. By setting the first cavity 140, the second cavity 150 and the third cavity 160, the present invention arranges the original several signal wire groups 130 that are centrally arranged in the first cavity 140, the second cavity 150 and the third cavity 160 respectively, so that the signal wire group 130 can make full use of the space formed between the positive wire 110, the negative wire 120 and the inner wall of the outer sheath 100, optimize the arrangement of the signal wire group 130, which is beneficial to reducing the wire diameter of the cable, making the cable lighter and reducing the manufacturing cost of the cable.

[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0044] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A charging pile cable, characterized in that: The cable comprises an outer sheath (100), and at least two positive lines (110), at least two negative lines (120), and a plurality of signal line groups (130) arranged inside the outer sheath (100), wherein at least two of the positive lines (110) and at least two of the negative lines (120) are distributed along the radial circumference of the cable, at least two of the positive lines (110) are arranged adjacent to each other, and at least two of the negative lines (120) are arranged adjacent to each other; A first cavity (140) is formed between two adjacent positive lines (110) and the inner wall of the outer sheath (100), a second cavity (150) is formed between two adjacent negative lines (120) and the inner wall of the outer sheath (100), and a third cavity (160) is formed between the adjacent positive line (110) and the negative line (120), the third cavity (160) being arranged close to the inner wall of the outer sheath (100), and the first cavity (140), the second cavity (150) and the third cavity (160) are respectively used to accommodate the signal line group (130).

2. A charging pile cable according to claim 1, characterized in that: The signal line group (130) comprises a first signal line (170), a second signal line (180), a third signal line (190) and a fourth signal line (200); the first signal line (170) and the second signal line (180) are twisted together and a shielding layer (210) is provided on the outer surface of the twisted lines.

3. A charging pile cable according to claim 2, characterized in that: The shielding layer (210) is formed by tinned copper braiding.

4. A charging pile cable according to claim 1, characterized in that: It also includes a non-woven fabric (220), and the non-woven fabric (220) is used to wrap the positive electrode line (110), the negative electrode line (120) and the signal line group (130) together.

5. A charging pile cable according to claim 1, characterized in that: The gaps between the positive electrode line (110), the negative electrode line (120) and the signal line group (130) are filled with filling.

6. A charging pile cable according to claim 1, characterized in that: The material of the outer sheath (100) is TPU.

7. A charging pile cable according to claim 1, characterized in that: The positive electrode line (110) and the negative electrode line (120) both have a conductive wire (230) and an insulating sleeve (240), and the insulating sleeve (240) is sleeved on the outer surface of the conductive wire (230).

8. A charging pile cable according to claim 7, characterized in that: The insulating sleeve (240) is made of cross-linked polyethylene.

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