Flexible liquid cooling constant temperature charging pile cable

Abstract

The utility model relates to the technical field of cables, and discloses a flexible liquid cooling constant temperature charging pile cable, which comprises a wrapping layer, first liquid cooling pipes are arranged on the left side and the right side of the inside of the wrapping layer, power wire cores are arranged on the periphery of the outside of the first liquid cooling pipes, and a second liquid cooling pipe is arranged on the front side of the inside of the wrapping layer. A grounding wire core is arranged on the periphery of the outer portion of the second liquid cooling pipe, a heat insulation layer is arranged outside the power wire core and the grounding wire core, and a first halogen-free insulation layer is fixedly connected to the outer portion of the heat insulation layer. According to the utility model, through cooperation of the heat insulation layer, the first liquid cooling pipe, the second liquid cooling pipe and the third liquid cooling pipe, it can be ensured that the cable can be cooled while being charged, the power loss is reduced, the charging speed is accelerated, the service life of the cable is prolonged, charging heating is overcome, thermal damage to a charging gun and a charging pile is reduced, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a flexible liquid-cooled constant-temperature charging pile cable. Background Art

[0002] As a basic charging device for electric vehicles, there are a variety of products on the current market. Whether it is a DC charging pile in a charging station or an AC charging pile for household use, judging from the current market usage feedback, the problems of difficult charging and low charging efficiency seriously restrict the development of electric vehicles.

[0003] During the use of a charging pile, a large amount of heat will be generated in the charging cable. The greater the power, the faster the cable heats up, the slower the actual charging speed, and at the same time, the service life of the cable will be reduced. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a flexible liquid-cooled constant-temperature charging pile cable, which has a fast charging speed, can cool down while charging and quickly cool down after charging, and can continuously charge electric vehicles through multiple cycles.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A flexible liquid-cooled constant-temperature charging pile cable includes a wrapping layer. On both the left and right sides inside the wrapping layer, first liquid-cooling pipes are provided. Around the outside of each first liquid-cooling pipe, power cores are arranged. Inside the front side of the wrapping layer, a second liquid-cooling pipe is provided. Around the outside of the second liquid-cooling pipe, a grounding core is arranged. Heat insulation layers are commonly arranged outside the power cores and the grounding core. First halogen-free insulating layers are fixedly connected to the outside of each heat insulation layer. First shielding layers are fixedly connected to the outside of each first halogen-free insulating layer. A signal transmission component is arranged at the rear side inside the wrapping layer. Auxiliary power supply components are arranged on both the left and right sides of the first shielding layer.

[0007] Further, the signal transmission component includes a third liquid-cooling pipe at the rear side inside the wrapping layer. Around the outside of each third liquid-cooling pipe, signal cores are arranged. A fixing layer is commonly arranged outside the signal cores. A tin-copper wire braided shielding layer is fixedly connected to the outside of the fixing layer. An aluminum-plastic composite tape shielding layer is fixedly connected to the outside of the tin-copper wire braided shielding layer.

[0008] Further, the auxiliary power supply component includes auxiliary power cores on both the left and right sides of the first shielding layer. Second halogen-free insulating layers are arranged outside each auxiliary power core. Second shielding layers are fixedly connected to the outside of each second halogen-free insulating layer.

[0009] Further, an outer shielding layer is fixedly connected to the outside of the wrapping layer, and a moisture-proof layer is fixedly connected to the outside of the outer shielding layer.

[0010] Further, a protective layer is fixedly connected to the outside of the moisture-proof layer.

[0011] Further, a plurality of wear-resistant ridges are fixedly connected to the outside of the protective layer.

[0012] Further, a tensile metal strip is fixedly connected to the inside of the protective layer.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, through the cooperation of the heat insulation layer, the first liquid cooling pipe, the second liquid cooling pipe and the third liquid cooling pipe, it can be ensured that the cable can be cooled while charging, reducing power loss, accelerating the charging speed, and at the same time improving the service life of the cable. Moreover, it overcomes the problem of charging heat, reduces the thermal damage to the charging gun and the charging pile, and improves safety.

[0015] 2. In the utility model, by arranging the grounding wire core to wrap the second liquid cooling pipe, the cross-section of the main cable for transmitting current is reduced. The cross-section of the liquid cooling charging pile for transmitting current is half of that of the ordinary DC charging pile for transmitting current, but the transmitted current is the same as that of the ordinary DC charging pile, and the charging speed is on average one-third faster than that of the ordinary DC charging pile. The first halogen-free insulating layer and the second halogen-free insulating layer are made of a soft type of low-smoke and halogen-free ethylene propylene rubber insulating material, ensuring good insulation performance, mechanical performance and bending performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an overall schematic diagram of a flexible liquid-cooled constant-temperature charging pile cable proposed by the utility model;

[0017] Figure 2 is a schematic diagram of the power wire core of a flexible liquid-cooled constant-temperature charging pile cable proposed by the utility model;

[0018] Figure 3 is a schematic diagram of the grounding wire core of a flexible liquid-cooled constant-temperature charging pile cable proposed by the utility model;

[0019] Figure 4 is a schematic diagram of the auxiliary power wire core of a flexible liquid-cooled constant-temperature charging pile cable proposed by the utility model;

[0020] Figure 5 is a schematic diagram of the protective layer of a flexible liquid-cooled constant-temperature charging pile cable proposed by the utility model.

[0021] Legend Explanation:

[0022] 1. Wrapping layer; 2. First liquid cooling tube; 3. Power core; 4. Second liquid cooling tube; 5. Ground wire core; 6. Heat insulation layer; 7. First halogen-free insulation layer; 8. First shielding layer; 9. Third liquid cooling tube; 10. Signal wire core; 11. Fixing layer; 12. Tin-copper wire braided shielding layer; 13. Aluminum-plastic composite tape shielding layer; 14. Auxiliary power wire core; 15. Second halogen-free insulation layer; 16. Second shielding layer; 17. Outer shielding layer; 18. Moisture-proof layer; 19. Protective layer; 20. Wear-resistant rib; 21. Tensile metal strip. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Referring to Figures 1-5 , an embodiment provided by the present invention: a flexible liquid-cooled constant-temperature charging pile cable, including a wrapping layer 1. First liquid cooling tubes 2 are arranged on both the left and right sides inside the wrapping layer 1. Power cores 3 are arranged around the outside of the first liquid cooling tubes 2. A second liquid cooling tube 4 is arranged on the front side inside the wrapping layer 1. A ground wire core 5 is arranged around the outside of the second liquid cooling tube 4. Heat insulation layers 6 are commonly arranged outside the power core 3 and the ground wire core 5. First halogen-free insulation layers 7 are fixedly connected to the outside of the heat insulation layers 6. First shielding layers 8 are fixedly connected to the outside of the first halogen-free insulation layers 7; the power core 3 and the ground wire core 5 respectively wrap the first liquid cooling tube 2 and the second liquid cooling tube 4, are fixed by the provided heat insulation layer 6, and block the generated heat from diffusing to the outside. The constant-temperature coolant flowing inside the first liquid cooling tube 2 and the second liquid cooling tube 4 absorbs the generated heat, thereby ensuring that the cable can cool down while charging, reducing power loss, accelerating the charging speed, and at the same time increasing the service life of the cable. Moreover, it overcomes charging heat, reduces thermal damage to the charging gun and the charging pile, and improves safety.

[0025] A third liquid cooling tube 9 is arranged on the rear side inside the wrapping layer 1. Signal wire cores 10 are arranged around the outside of the third liquid cooling tube 9. A fixing layer 11 is commonly arranged outside the signal wire cores 10. A tin-copper wire braided shielding layer 12 is fixedly connected to the outside of the fixing layer 11. An aluminum-plastic composite tape shielding layer 13 is fixedly connected to the outside of the tin-copper wire braided shielding layer 12; the signal wire cores 10 are protected by the tin-copper wire braided shielding layer 12 and the aluminum-plastic composite tape shielding layer 13 arranged outside the signal wire cores 10, avoiding interference from the power core 3, the ground wire core 5, and the auxiliary power wire core 14 during signal transmission.

[0026] Auxiliary power line cores 14 are arranged on both the left and right sides of the first shielding layer 8. Second halogen-free insulating layers 15 are arranged outside the auxiliary power line cores 14, and second shielding layers 16 are fixedly connected outside the second halogen-free insulating layers 15. The second halogen-free insulating layer 15 and the first halogen-free insulating layer 7 are mainly made of a soft type of low-smoke halogen-free ethylene propylene rubber insulating material to ensure good insulation performance, mechanical performance, and bending performance.

[0027] An outer shielding layer 17 is fixedly connected outside the wrapping layer 1. A moisture-proof layer 18 is fixedly connected outside the outer shielding layer 17. A protective layer 19 is fixedly connected outside the moisture-proof layer 18. A plurality of wear-resistant ridges 20 are fixedly connected outside the protective layer 19. A tensile metal strip 21 is fixedly connected inside the protective layer 19. The outer shielding layer 17 is used to block external signals from interfering with the inside of the cable. The moisture-proof layer 18 is provided to block external water from penetrating into the cable and affecting the normal use of the cable. The wear-resistant ridges 20 can protect the protective layer 19 to avoid the protective layer 19 from being worn, resulting in a decline in the protection performance and affecting the service life of the cable. The tensile metal strip 21 can increase the tensile performance of the cable.

[0028] Working principle: The power line core 3, the grounding line core 5, and the signal line core 10 are respectively closely wrapped with the first liquid cooling pipe 2, the second liquid cooling pipe 4, and the third liquid cooling pipe 9, and are fixed by the heat insulation layer 6 and the fixing layer 11. The constant-temperature liquid flowing inside the first liquid cooling pipe 2, the second liquid cooling pipe 4, and the third liquid cooling pipe 9 absorbs the heat generated by the power line core 3, the grounding line core 5, and the signal line core 10 to reduce the temperature of the cable. The moisture-proof layer 18 is provided to block external rainwater from seeping into the cable.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible liquid-cooled constant temperature charging pile cable, comprising a wrapping layer (1), characterized in that: First liquid cooling tubes (2) are arranged on both left and right sides of the interior of the wrapping layer (1); a power line core (3) is arranged around the exterior of the first liquid cooling tube (2); a second liquid cooling tube (4) is arranged on the front side of the interior of the wrapping layer (1); a grounding line core (5) is arranged around the exterior of the second liquid cooling tube (4); a heat insulation layer (6) is arranged on the exterior of the power line core (3) and the grounding line core (5); a first halogen-free insulating layer (7) is fixedly connected to the exterior of the heat insulation layer (6); a first shielding layer (8) is fixedly connected to the exterior of the first halogen-free insulating layer (7); a signal transmission component is arranged on the rear side of the interior of the wrapping layer (1); and auxiliary power supply components are arranged on both left and right sides of the first shielding layer (8).

2. A flexible liquid-cooled constant temperature charging pile cable according to claim 1, characterized in that: The signal transmission component comprises a third liquid cooling tube (9) on the inner rear side of the wrapping layer (1), a signal wire core (10) is arranged around the outside of the third liquid cooling tube (9), a fixing layer (11) is arranged outside the signal wire core (10), a tin-copper wire braided shielding layer (12) is fixedly connected to the outside of the fixing layer (11), and an aluminum-plastic composite tape shielding layer (13) is fixedly connected to the outside of the tin-copper wire braided shielding layer (12).

3. A flexible liquid-cooled constant temperature charging pile cable according to claim 1, characterized in that: The auxiliary power supply assembly comprises auxiliary power supply cores (14) on the left and right sides of a first shielding layer (8), the outside of the auxiliary power supply cores (14) are provided with a second halogen-free insulation layer (15), and the outside of the second halogen-free insulation layer (15) is fixedly connected with a second shielding layer (16).

4. A flexible liquid-cooled constant temperature charging pile cable according to claim 1, characterized in that: The exterior of the wrapping layer (1) is fixedly connected to an outer shielding layer (17), and the exterior of the outer shielding layer (17) is fixedly connected to a moisture-proof layer (18).

5. A flexible liquid-cooled constant temperature charging pile cable according to claim 4, characterized in that: A protective layer (19) is fixedly connected to the outside of the moisture-proof layer (18).

6. A flexible liquid-cooled constant temperature charging pile cable according to claim 5, characterized in that: A plurality of wear-resistant convex strips (20) are fixedly connected to the outside of the protective layer (19).

7. A flexible liquid-cooled constant temperature charging pile cable according to claim 5, characterized in that: A tensile metal strip (21) is fixedly connected inside the protective layer (19).

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