Liquid-cooled cable for charging pile

Abstract

The utility model discloses a liquid-cooled cable for a charging pile, which comprises an outer protection layer, a signal wire core is arranged in the outer protection layer, a conductive wire core is arranged in the outer protection layer, one end of the outer protection layer is fixedly connected with a handle part, one end of the handle part is fixedly connected with a charging plug, and the other end of the handle part is fixedly connected with a liquid-cooled cable. And a liquid cooling structure for rapidly cooling the cable is arranged in the outer protection layer. According to the liquid-cooled cable for the charging pile, the coating layer is arranged, the coating layer of the cable is filled with the cooling liquid, and in the working process of the cable, the cooling liquid coats the first heat conduction layer and can exchange heat with the conductive wire core in the cable through the first heat conduction layer; similarly, the cooling liquid wraps the second heat conduction layer and can exchange heat with the internal signal wire core through the second heat conduction layer, so that the signal wire core is cooled, the internal temperature of the cable during operation is reduced, the temperature is prevented from being too high, and the problem that the temperature is too high due to long-time work is solved.

Description

Technical Field

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

[0002] A car charging pile refers to a dedicated facility for charging electric vehicles. With the development of new energy vehicles, electric vehicles now account for an increasingly high proportion of the total number of vehicles. Therefore, in order to meet the needs of the electric vehicle market, the number of charging piles is increasing rapidly. The charging cable of the charging pile is the component with the most contact, so it plays a very important role in the entire charging pile.

[0003] However, the current charging pile cables still have some defects in use. When the charging pile is working, because the output power of the charging pile is high, the heat released by the components inside the charging cable is also very high. Long-term high-temperature operation will cause the service life of the cable to be rapidly reduced, and there are certain safety hazards.

[0004] A new type of liquid-cooled cable for charging piles is now proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a liquid-cooled cable for a charging pile, so as to solve the problem in the above background technology that long-term operation may lead to excessive temperature.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a liquid-cooled cable for a charging pile, comprising an outer protective layer, a signal core disposed within the outer protective layer, a conductive core disposed within the outer protective layer, a handle fixedly connected to one end of the outer protective layer, a charging plug fixedly connected to one end of the handle, and a liquid cooling structure disposed within the outer protective layer for rapidly cooling the cable;

[0007] The liquid cooling structure includes a covering layer, a covering layer is arranged inside the outer protective layer, a cooling liquid is arranged inside the covering layer, the outside of the signal core is fixedly connected to a second base layer, the outside of the second base layer is fixedly connected to a second thermal conductive layer, the outside of the conductive core is fixedly connected to a first base layer, and the outside of the first base layer is fixedly connected to a first thermal conductive layer.

[0008] Preferably, the center line of the coating layer and the center line of the outer protective layer are on the same vertical plane.

[0009] Preferably, the center line of the first base layer and the center line of the first heat-conducting layer are on the same horizontal plane, and the center line of the second base layer and the center line of the second heat-conducting layer are on the same horizontal plane.

[0010] Preferably, a flame retardant layer is fixedly connected to the outside of the covering layer, a cavity is provided inside the outer protective layer, and a flame retardant filler is provided inside the cavity.

[0011] Preferably, the center line of the cavity and the center line of the outer protective layer are on the same vertical plane, and the center line of the flame retardant layer and the center line of the outer protective layer are on the same vertical plane.

[0012] Preferably, a metal wire is fixedly connected to the inside of the outer protective layer, a connecting tube is fixedly connected to one side of the handle portion, a protective wire is movably connected to one side of the connecting tube, mounting plates are fixedly connected to both ends of one side of the protective wire, mounting grooves are provided at both ends of the connecting tube, and a positioning block is fixedly connected to the inside of the mounting groove.

[0013] Preferably, the positioning block is movably connected to the mounting piece, and the mounting piece is movably connected to the mounting groove.

[0014] Preferably, the protective wire is movably connected to the outer protective layer, and the connecting tube is fixedly connected to the outer protective layer.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the liquid-cooled cable for charging piles not only achieves effective cooling and flame retardancy, but also protects the cable body;

[0016] (1) The cable is provided with a coating layer, a first heat-conducting layer, a first base layer, a coolant, a second base layer, and a second heat-conducting layer. The coating layer of the cable is filled with coolant. During operation, the coolant coated on the outside of the first heat-conducting layer can exchange heat with the conductive wire core inside the cable through the first heat-conducting layer, thereby achieving a cooling effect. Similarly, the coolant coated on the outside of the second heat-conducting layer can exchange heat with the signal wire core inside the cable through the second heat-conducting layer, thereby cooling the signal wire core and reducing the internal temperature of the cable during operation to prevent the temperature from being too high, thereby achieving effective cooling of the cable when it is working.

[0017] (2) By providing a flame retardant filler, a cavity and a flame retardant layer, a flame retardant layer is provided inside the outer protective layer of the cable. The flame retardant layer is a soft flame retardant material and can play a flame retardant effect. A cavity is provided between the outer protective layer and the flame retardant layer. The internal space of the cavity is filled with a flame retardant filler. The flame retardant filler also plays a flame retardant effect and can quickly cover the fire source when combustion occurs to play a fire extinguishing and flame retardant effect, thereby improving the flame retardant effect of the cable and improving the safety of use;

[0018] (3) A metal wire, a protective wire, a connecting tube, a mounting plate, a positioning block and a mounting groove are provided. A connecting tube is installed on one side of the connecting tube of the cable. Both ends of the connecting tube are connected to mounting plates through positioning blocks. The protective wire fixed on one side of the mounting plate is spirally wrapped around the outside of the outer protective layer, which can effectively protect the outer protective layer and prevent damage to the outer protective layer caused by daily friction and collision. A metal wire is provided inside the outer protective layer. The metal wire can effectively prevent sharp objects from passing through the inside of the protective wire and directly piercing into the inside of the cable, causing damage to the cable, thereby achieving effective protection of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a side view structural diagram of the outer protective layer of the present invention;

[0021] Figure 3 For the utility model Figure 2 A in the middle is an enlarged structural diagram;

[0022] Figure 4 It is a partially enlarged structural schematic diagram of the front cross-section of the cavity of the present invention.

[0023] In the figure: 1. Outer protective layer; 2. Flame retardant filler; 3. Cavity; 4. Flame retardant layer; 5. Coating layer; 6. Metal wire; 7. First heat-conducting layer; 8. First base layer; 9. Conductive core; 10. Coolant; 11. Signal core; 12. Second base layer; 13. Second heat-conducting layer; 14. Protective wire; 15. Charging plug; 16. Handle; 17. Connecting tube; 18. Mounting piece; 19. Positioning block; 20. Mounting slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example: See Figure 1-4 The liquid-cooled cable for a charging pile includes an outer protective layer 1, a signal core 11 is provided inside the outer protective layer 1, a conductive core 9 is provided inside the outer protective layer 1, one end of the outer protective layer 1 is fixedly connected to a handle portion 16, one end of the handle portion 16 is fixedly connected to a charging plug 15, and a liquid cooling structure for quickly cooling the cable is provided inside the outer protective layer 1;

[0026] The liquid cooling structure includes a coating layer 5, an outer protective layer 1 is provided with the coating layer 5, a cooling liquid 10 is provided inside the coating layer 5, a second base layer 12 is fixedly connected to the outside of the signal core 11, a second heat-conducting layer 13 is fixedly connected to the outside of the second base layer 12, a first base layer 8 is fixedly connected to the outside of the conductive core 9, and a first heat-conducting layer 7 is fixedly connected to the outside of the first base layer 8;

[0027] The center line of the coating layer 5 and the center line of the outer protective layer 1 are on the same vertical plane;

[0028] The center line of the first base layer 8 is on the same horizontal plane as the center line of the first heat-conducting layer 7 , and the center line of the second base layer 12 is on the same horizontal plane as the center line of the second heat-conducting layer 13 ;

[0029] Specifically, if Figure 1 As shown, the inside of the sheath 5 of the cable is filled with a coolant 10. During operation, the coolant 10 coated on the outside of the first heat-conducting layer 7 can exchange heat with the conductive core 9 inside it through the first heat-conducting layer 7, thereby achieving a cooling effect. Similarly, the coolant 10 coated on the outside of the second heat-conducting layer 13 can exchange heat with the internal signal core 11 through the second heat-conducting layer 13, cooling the signal core 11 to reduce the internal temperature of the cable during operation and prevent the temperature from being too high, thereby achieving effective cooling of the cable when it is working.

[0030] The outer portion of the coating layer 5 is fixedly connected to a flame retardant layer 4, the inner portion of the outer protective layer 1 is provided with a cavity 3, and the inner portion of the cavity 3 is provided with a flame retardant filler 2;

[0031] The center line of the cavity 3 and the center line of the outer protective layer 1 are on the same vertical plane, and the center line of the flame retardant layer 4 and the center line of the outer protective layer 1 are on the same vertical plane;

[0032] Specifically, if Figure 1 and Figure 4 As shown, a flame retardant layer 4 is provided inside the outer protective layer 1 of the cable. The flame retardant layer 4 is a soft flame retardant material and can have a flame retardant effect. A cavity 3 is provided between the outer protective layer 1 and the flame retardant layer 4. The internal space of the cavity 3 is filled with a flame retardant filler 2. The flame retardant filler 2 also has a flame retardant effect and can quickly cover the fire source when combustion occurs to achieve a fire extinguishing and flame retardant effect, thereby improving the flame retardant effect of the cable and improving the safety of use.

[0033] The outer protective layer 1 is fixedly connected to the metal wire 6, and one side of the handle portion 16 is fixedly connected to a connecting tube 17. One side of the connecting tube 17 is movably connected to the protective wire 14. The two ends of one side of the protective wire 14 are fixedly connected to mounting plates 18. The two ends of the connecting tube 17 are provided with mounting grooves 20. The interior of the mounting grooves 20 is fixedly connected to positioning blocks 19.

[0034] The positioning block 19 is movably connected to the mounting piece 18, and the mounting piece 18 is movably connected to the mounting groove 20;

[0035] The protective wire 14 is movably connected to the outer protective layer 1, and the connecting tube 17 is fixedly connected to the outer protective layer 1;

[0036] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a connecting tube 17 is installed on one side of the connecting tube 17 of the cable, and both ends of the connecting tube 17 are connected to mounting plates 18 through positioning blocks 19. The protective wire 14 fixed on one side of the mounting plate 18 is spirally wrapped around the outside of the outer protective layer 1, which can effectively protect the outer protective layer 1 and prevent damage to the outer protective layer 1 due to daily friction and collision. A metal wire 6 is arranged inside the outer protective layer 1, and the metal wire 6 can effectively prevent sharp objects from passing through the protective wire 14 and directly piercing into the cable, causing damage to the cable, thereby effectively protecting the cable.

[0037] Working principle: When the present invention is in use, the coating 5 of the cable is filled with a coolant 10. During operation, the coolant 10 is coated on the outside of the first heat-conducting layer 7 and can exchange heat with the conductive core 9 inside it through the first heat-conducting layer 7, thereby achieving a cooling effect. Similarly, the coolant 10 is coated on the outside of the second heat-conducting layer 13 and can exchange heat with the internal signal core 11 through the second heat-conducting layer 13, cooling the signal core 11 to reduce the internal temperature of the cable during operation and prevent the temperature from being too high. A flame retardant layer 4 is provided inside the outer protective layer 1 of the cable. The flame retardant layer 4 is a soft flame retardant material that can achieve a flame retardant effect, and a flame retardant layer is provided between the outer protective layer 1 and the flame retardant layer 4. A cavity 3 is provided, and the internal space of the cavity 3 is filled with a flame retardant filler 2. The flame retardant filler 2 also has a flame retardant effect and can quickly cover the fire source when combustion occurs to achieve the effect of fire extinguishing and flame retardant. A connecting tube 17 is installed on one side of the connecting tube 17 of the cable. The two ends of the connecting tube 17 are connected to the mounting piece 18 through the positioning block 19. The protective wire 14 fixed on one side of the mounting piece 18 is spirally surrounded by the outside of the outer protective layer 1, which can effectively protect the outer protective layer 1 and prevent damage to the outer protective layer 1 caused by daily friction and collision. A metal wire 6 is provided inside the outer protective layer 1. The metal wire 6 can effectively prevent sharp objects from passing through the inside of the protective wire 14 and directly piercing the inside of the cable, causing damage to the cable.

Claims

1. A liquid-cooled cable for a charging pile, comprising an outer protective layer (1), characterized in that: A signal wire core (11) is provided inside the outer protective layer (1), a conductive wire core (9) is provided inside the outer protective layer (1), one end of the outer protective layer (1) is fixedly connected to a handle portion (16), one end of the handle portion (16) is fixedly connected to a charging plug (15), and a liquid cooling structure for quickly cooling the cable is provided inside the outer protective layer (1); The liquid cooling structure comprises a coating layer (5), the coating layer (5) is arranged inside the outer protective layer (1), a cooling liquid (10) is arranged inside the coating layer (5), the outside of the signal core (11) is fixedly connected to a second base layer (12), the outside of the second base layer (12) is fixedly connected to a second heat-conducting layer (13), the outside of the conductive core (9) is fixedly connected to a first base layer (8), and the outside of the first base layer (8) is fixedly connected to a first heat-conducting layer (7).

2. The liquid-cooled cable for a charging pile according to claim 1, characterized in that: The center line of the coating layer (5) and the center line of the outer protective layer (1) are on the same vertical plane.

3. The liquid-cooled cable for a charging pile according to claim 1, characterized in that: The center line of the first base layer (8) and the center line of the first heat-conducting layer (7) are on the same horizontal plane, and the center line of the second base layer (12) and the center line of the second heat-conducting layer (13) are on the same horizontal plane.

4. The liquid-cooled cable for a charging pile according to claim 1, characterized in that: The exterior of the coating layer (5) is fixedly connected to a flame retardant layer (4), the interior of the outer protective layer (1) is provided with a cavity (3), and the interior of the cavity (3) is provided with a flame retardant filler (2).

5. The liquid-cooled cable for a charging pile according to claim 4, characterized in that: The center line of the cavity (3) and the center line of the outer protective layer (1) are on the same vertical plane, and the center line of the flame retardant layer (4) and the center line of the outer protective layer (1) are on the same vertical plane.

6. The liquid-cooled cable for a charging pile according to claim 1, characterized in that: The outer protective layer (1) is fixedly connected to a metal wire (6), one side of the handle portion (16) is fixedly connected to a connecting tube (17), one side of the connecting tube (17) is movably connected to a protective wire (14), both ends of one side of the protective wire (14) are fixedly connected to mounting plates (18), both ends of the connecting tube (17) are provided with mounting grooves (20), and the interior of the mounting groove (20) is fixedly connected to a positioning block (19).

7. The liquid-cooled cable for a charging pile according to claim 6, characterized in that: The positioning block (19) is movably connected to the mounting piece (18), and the mounting piece (18) is movably connected to the mounting groove (20).

8. The liquid-cooled cable for a charging pile according to claim 6, characterized in that: The protective wire (14) is movably connected to the outer protective layer (1), and the connecting tube (17) is fixedly connected to the outer protective layer (1).

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