Charging cable

Abstract

The utility model discloses a charging cable, the charging cable comprises an outer coating layer and a plurality of power assemblies arranged in the outer coating layer, each power assembly comprises a liquid cooling pipe and a waterproof layer, a bare conductor is arranged in the liquid cooling pipe, and a cooling medium is arranged between the bare conductor and the liquid cooling pipe; and the waterproof layer is arranged on the outer wall of the liquid cooling pipe in a sleeving manner. According to the technical scheme, the charging efficiency of the charging cable is improved, the cable diameter is reduced, and water vapor can be prevented from entering the insulating layer.

Description

Technical Field

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

[0002] As new energy vehicles become more and more popular, the demand for charging systems is also getting higher and higher. The greater the charging power of the car, the higher the cable diameter is required. How to increase the power of the charging cable while reducing the wire diameter and improving safety has become an urgent problem to be solved. Utility Model Content

[0003] The main purpose of the utility model is to provide a charging cable, which aims to increase the power of the charging cable while reducing the wire diameter and improving safety.

[0004] To achieve the above object, the utility model provides a charging cable, comprising an outer layer, and a plurality of power components arranged inside the outer layer, wherein the power components include:

[0005] A liquid cooling tube, wherein a bare conductor is provided in the liquid cooling tube, and a cooling medium is provided between the bare conductor and the liquid cooling tube;

[0006] A waterproof layer is sleeved on the outer wall of the liquid cooling tube.

[0007] In one embodiment, the outer wall of the bare conductor is in direct contact with the cooling medium.

[0008] In one embodiment, the power assembly further includes a braided layer, and the braided layer is sleeved on the outer wall of the waterproof layer.

[0009] In one embodiment, the number of the power components is an even number.

[0010] In one embodiment, the number of the power components is 4, two of which are liquid inlet modules, and the other two are liquid outlet modules. The liquid inlet modules and the liquid outlet modules are connected so that the cooling medium flows into the liquid cooling pipe of the liquid inlet module and flows out of the liquid cooling pipe of the liquid outlet module to form a circulation loop.

[0011] In one embodiment, the braided layer is a nylon braided layer.

[0012] In one embodiment, the charging cable further includes a ground wire disposed inside the outer layer, the ground wire is disposed at the center of the charging cable, and the plurality of power components are disposed around the ground wire.

[0013] In one embodiment, a plurality of the power components are in contact with the ground line.

[0014] In one embodiment, the charging cable further includes an auxiliary cable disposed inside the outer layer.

[0015] In one embodiment, the auxiliary cable includes a plurality of sub-wires, and the plurality of sub-wires are arranged at intervals between two adjacent power components and the inner wall of the outer sheath layer.

[0016] A technical solution of the utility model is to set a liquid cooling tube in the charging cable, and directly immerse the bare conductor in the cooling medium in the liquid cooling tube, so as to reduce the temperature on the bare conductor and improve the charging efficiency; at the same time, a waterproof layer is set on the outer wall of the liquid cooling tube to prevent water vapor from entering the interior of the liquid cooling tube, thereby improving the safety of the charging cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 Schematic diagram of the structure of the charging cable of this embodiment.

[0019] Description of Figure Numbers:

[0020] 100. Charging cable; 1. Outer layer; 2. Power assembly; 21. Bare conductor; 22. Cooling medium; 23. Liquid cooling pipe; 24. Waterproof layer; 25. Braided layer; 3. Auxiliary cable; 4. Ground wire.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0025] As new energy vehicles become more and more popular, the demand for charging systems is also getting higher and higher. The greater the charging power of the car, the higher the cable diameter is required. How to increase the power of the charging cable while reducing the wire diameter and improving safety has become an urgent problem to be solved.

[0026] In view of this, the present invention provides a charging cable 100 .

[0027] Combination Figure 1 The utility model proposes an embodiment, the charging cable 100 includes an outer layer 1, a plurality of power components 2 arranged inside the outer layer 1, the power components 2 include a liquid cooling tube 23 and a waterproof layer 24: a bare conductor 21 is provided in the liquid cooling tube 23, and a cooling medium 22 is provided between the bare conductor 21 and the liquid cooling tube 23; the waterproof layer 24 is sleeved on the outer wall of the liquid cooling tube 23.

[0028] Specifically, the outer layer 1 is the outermost layer of the charging cable 100. Optionally, the outer layer 1 is an insulating outer layer 1. In order to increase the strength of the outer layer 1, preferably, a reinforcing layer (not shown) can be provided on the inner side of the outer layer 1 to improve the strength of the outer layer 1. A cavity is formed in the outer layer 1, and a plurality of power components 2 are provided in the cavity. The power component 2 includes a liquid cooling tube 23, in which coolant flows, a bare conductor 21 is provided in the liquid cooling tube 23, and a cooling medium 22 is provided between the bare conductor 21 and the liquid cooling tube 23. It can be understood that the bare conductor 21 in the power component 2 can transmit the electric energy required by the new energy vehicle and provide the new energy vehicle with the power energy required. In order to improve the charging efficiency, the power transmitted on the bare conductor 21 is very large, which makes the bare conductor 21 easy to heat up. The bare conductor 21 is directly arranged in the liquid cooling tube 23, and a cooling medium 22 is provided between the bare conductor 21 and the liquid cooling tube 23, so that the cooling medium 22 can take away the heat on the bare conductor 21, thereby ensuring that the bare conductor 21 is kept within a suitable temperature range. On the basis of ensuring that the charging cable 100 transmits electrical energy at high power, safety is also ensured to prevent damage to the cable due to excessive temperature. Preferably, the outer wall of the bare conductor 21 is in direct contact with the cooling medium 22. It can be understood that the outer wall of the bare conductor 21 is in direct contact with the cooling medium 22, so that the cooling medium 22 directly takes away the energy on the bare conductor 21, thereby improving the heat transfer efficiency. Preferably, the liquid cooling tube 23 can be a pipe of insulating material to prevent the electrical energy on the bare conductor 21 from being transmitted to the outside of the liquid cooling tube 23. In order to prevent water vapor from entering the liquid cooling tube 23, the outer wall of the liquid cooling tube 23 is also provided with a waterproof layer 24.

[0029] Furthermore, the power assembly 2 further includes a braided layer 25 , and the braided layer 25 is sleeved on the outer wall of the waterproof layer 24 .

[0030] In this embodiment, by sleeve-arranging the braided layer 25 on the outer wall of the waterproof layer 24, the explosion resistance of the liquid cooling tube 23 during use of the charging cable 100 can be improved, thereby improving the safety performance of the entire charging cable 100. Preferably, the braided layer 25 is a nylon braided layer 25.

[0031] Furthermore, the number of power components 2 is an even number.

[0032] The number of power components 2 in this embodiment is an even number. Preferably, the number of power components 2 is 4, of which two power components 2 are liquid inlet modules, and the other two power components 2 are liquid outlet modules, and the liquid inlet modules and the liquid outlet modules are connected so that the cooling medium 22 flows into the liquid cooling pipe 23 of the liquid inlet module and flows out from the liquid cooling pipe 23 of the liquid outlet module to form a circulation loop.

[0033] Specifically, there are four power components 2, thereby splitting the traditional power line into four parts. Each part of the power line is a bare conductor 21, which is arranged in a liquid cooling tube 23 of a power component 2, so that the spatial arrangement of the charging cable 100 is more compact, thereby achieving the purpose of reducing the cable quality and wire diameter.

[0034] In an embodiment of the present invention, the charging cable 100 further includes a ground wire 4 disposed inside the outer layer 1 , the ground wire 4 is disposed at the center of the charging cable 100 , and the plurality of power components 2 are disposed around the ground wire 4 .

[0035] In this embodiment, the ground wire 4 is arranged at the center of the charging cable 100, and multiple power components 2 are arranged around the ground wire 4, so that the structure of the entire charging cable 100 is more compact. Preferably, multiple power components 2 are in contact with the ground wire 4. By contacting multiple power components 2 with the ground wire 4, the heat on the ground wire 4 can be timely and evenly transferred to the liquid cooling pipe 23 of each power component 2, and timely absorbed by the cooling medium 22 in the liquid cooling pipe 23, thereby facilitating the timely heat dissipation of the ground wire 4.

[0036] In an embodiment of the present invention, the charging cable 100 further includes an auxiliary cable 3 disposed inside the outer layer 1 .

[0037] Specifically, the auxiliary cable 3 may be a wire for transmitting control signals. Preferably, the auxiliary cable 3 includes a plurality of sub-wires, and the plurality of sub-wires are spaced between two adjacent power assemblies 2 and the inner wall of the outer layer 1. By splitting the auxiliary cable 3 into a plurality of sub-wires, and the plurality of sub-wires are spaced between two adjacent power assemblies 2 and the inner wall of the outer layer 1, it is beneficial to effectively utilize the space in the outer layer 1 of the charging cable 100, and further make the spatial arrangement of the charging cable 100 more compact.

[0038] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A charging cable (100), comprising an outer layer (1), and a plurality of power components (2) arranged inside the outer layer (1), characterized in that: The power assembly (2) comprises: A liquid cooling tube (23), wherein a bare conductor (21) is provided in the liquid cooling tube (23), and a cooling medium (22) is provided between the bare conductor (21) and the liquid cooling tube (23); A waterproof layer (24), wherein the waterproof layer (24) is sleeved on the outer wall of the liquid cooling tube (23).

2. The charging cable (100) according to claim 1, characterized in that: The outer wall of the bare conductor (21) is in direct contact with the cooling medium (22).

3. The charging cable (100) according to claim 2, characterized in that: The power assembly (2) further comprises a braided layer (25), wherein the braided layer (25) is sleeved on the outer wall of the waterproof layer (24).

4. The charging cable (100) according to claim 3, characterized in that: The number of the power components (2) is an even number.

5. The charging cable (100) according to claim 4, characterized in that: The number of the power components (2) is four, of which two power components (2) are liquid inlet modules and the other two power components (2) are liquid outlet modules. The liquid inlet modules and the liquid outlet modules are connected so that the cooling medium (22) flows into the liquid cooling pipe (23) of the liquid inlet module and flows out of the liquid cooling pipe (23) of the liquid outlet module to form a circulation loop.

6. The charging cable (100) according to claim 3, characterized in that: The braided layer (25) is a nylon braided layer (25).

7. The charging cable (100) according to claim 1, characterized in that: The charging cable (100) further comprises a ground wire (4) arranged inside the outer layer (1); the ground wire (4) is arranged at the center of the charging cable (100); and a plurality of the power components (2) are arranged around the ground wire (4).

8. The charging cable (100) according to claim 7, characterized in that: A plurality of the power components (2) are in contact with the ground wire (4).

9. The charging cable (100) according to claim 1, characterized in that: The charging cable (100) further comprises an auxiliary cable (3) arranged inside the outer layer (1).

10. The charging cable (100) according to claim 9, characterized in that: The auxiliary cable (3) comprises a plurality of sub-wires, and the plurality of sub-wires are arranged at intervals between two adjacent power components (2) and the inner wall of the outer sheath (1).

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