Charging cable for electric vehicle, cable connector and electric vehicle charging assembly

Abstract

The present invention relates to an electric vehicle charging cable, a cable connector, and an electric vehicle charging assembly including the same. Specifically, the present invention relates to an electric vehicle charging cable, a cable connector, and an electric vehicle charging assembly including the same, wherein the cooling efficiency of the cooling means for solving the heat generation problem of the conductor constituting the electric vehicle charging cable and the terminal constituting the cable connector is excellent, and the outer diameter and weight of the electric vehicle charging cable are reduced while the structure is also stable.

Description

Technology Field

[0001] The present invention relates to an electric vehicle charging cable, a cable connector, and an electric vehicle charging assembly including the same. Specifically, the present invention relates to an electric vehicle charging cable, a cable connector, and an electric vehicle charging assembly including the same, wherein the cooling efficiency of the cooling means for solving the heat generation problem of the conductor constituting the electric vehicle charging cable and the terminal constituting the cable connector is excellent, and the outer diameter and weight of the electric vehicle charging cable are reduced while the structure is also stable. Background Technology

[0002] With the proliferation of electric vehicles, the installation of electric vehicle chargers is expanding. Additionally, fast chargers capable of rapid charging are being introduced to enable charging within a short period of time. Unlike slow charging, the output voltage of fast chargers for rapid charging is 50 to 450 V DC, and the output current is 110 to 300 A. The output current of fast chargers is expected to increase depending on the battery capacity and charging technology of the electric vehicle.

[0003] In this fast charger, an electric vehicle charging cable is connected to the main body, and a cable connector is installed at the end of the charging cable. The cable connector is then connected to an electric vehicle connector provided in the electric vehicle to supply electricity from the charger to the electric vehicle.

[0004] In particular, since fast chargers have an output current of 110 to 300 A, heat generation in the electric vehicle charging cable that transmits this to the electric vehicle can be a problem. To minimize the heat generated in the electric vehicle charging cable, there are methods such as increasing the diameter of the conductor of the electric vehicle cable, but it is difficult to sufficiently reduce the heat generation, and there are problems such as increasing the outer diameter and weight of the electric vehicle charging cable and making the structure unstable.

[0005] Heat generated by electric vehicle charging cables can increase the risk of fire. Furthermore, during the process of attaching the cable connector to the electric vehicle connector or detaching it to place the charging station, the charging cable may come into contact with the user's body. This is undesirable because excessive heat generated by the charging cable can cause injury, discomfort, or anxiety to the user.

[0006] Therefore, there is an urgent need for an electric vehicle charging cable, a cable connector, and an electric vehicle charging assembly including them, which not only have excellent cooling efficiency for the cooling means to solve the heat generation problem of the conductor constituting the electric vehicle charging cable and the terminal constituting the cable connector, but also reduce the outer diameter and weight of the electric vehicle charging cable and maintain a stable structure. The problem to be solved

[0007] The present invention aims to provide an electric vehicle charging cable, a cable connector, and an electric vehicle charging assembly including the same, wherein the cooling efficiency of the cooling means for solving the heat generation problem of the conductor constituting the electric vehicle charging cable and the terminal constituting the cable connector is excellent, and the outer diameter and weight of the electric vehicle charging cable are reduced and the structure is also stable. means of solving the problem

[0008] To solve the above problem, the present invention,

[0009] The present invention provides an electric vehicle charging cable that connects an electric vehicle charger body and a cable connector for charging an electric vehicle, comprising: a plurality of power units that supply power to an electric vehicle; a pair of cooling fluid tubes that serve as flow passages for cooling fluid; and a cable jacket that completely encloses the plurality of power units and the pair of cooling fluid tubes, wherein each of the plurality of power units comprises a conductor and an insulating layer that encloses the conductor, and the plurality of power units comprises one or more pairs of positive (+) power units and one or more pairs of negative (-) power units, and the pair of cooling fluid tubes comprises a cooling fluid supply tube that transports cooling fluid supplied from the electric vehicle charger body to the cable connector and a cooling fluid recovery tube that recovers cooling fluid from the cable connector to the electric vehicle charger body.

[0010] Herein, an electric vehicle charging cable is provided, characterized in that a relatively large number of power units are arranged adjacently around the cooling fluid recovery tube, and a relatively small number of power units are arranged adjacently around the cooling fluid supply tube.

[0011] In addition, the present invention provides an electric vehicle charging cable characterized by further including a grounding unit comprising a grounding conductor and an insulating layer surrounding the grounding conductor inside the cable jacket, and one or more communication units comprising a communication conductor and an insulating layer surrounding the communication conductor and transmitting a control signal.

[0012] In addition, an electric vehicle charging cable is provided, characterized in that one or more intermediaries are disposed in the empty space inside the cable jacket.

[0013] Meanwhile, the above cooling fluid tube is characterized by being made of one or more materials selected from the group consisting of high-heat resistant plastic, nylon, perfluoroalkoxyalkane (PFA), fluorinated polyethylene (PTFE, Poly Tetra Fluoro Ethylene), and urethane, thereby providing an electric vehicle charging cable.

[0014] Herein, the electric vehicle charging cable is provided, characterized in that the cooling fluid tube has a thickness of 1 to 8.5 mm.

[0015] Meanwhile, the present invention provides a cable connector that can be detachably mounted to an electric vehicle connector provided in an electric vehicle, and connected to the other end of an electric vehicle charging cable to which an electric vehicle charger body is connected at one end, wherein the cable connector comprises a pair of power unit terminals to which each of a pair of positive (+) power units and a pair of negative (-) power units are connected and each of a pair of cooling fluid tubes is connected inside a housing, wherein a hollow portion capable of storing a cooling fluid is provided inside each of the positive (+) power unit terminal and the negative (-) power unit terminal of the pair of power unit terminals, and a flow path capable of transporting the cooling fluid is formed between the hollow portions.

[0016] Herein, the cable connector is provided, wherein the pair of power unit terminals are each equipped with a pair of cooling fluid transfer ports connected to each of the hollow portions and a cooling fluid transfer pipe connected to the end of each of the pair of cooling fluid transfer ports, and the end of the cooling fluid transfer pipe is connected through a separate Y-shaped transfer pipe or connected in a U-shape without a separate transfer pipe.

[0017] In addition, a cable connector is provided, characterized by further including a temperature sensor capable of detecting the temperature of the cooling chamber.

[0018] Meanwhile, an electric vehicle charging assembly is provided, comprising the above-mentioned electric vehicle charging cable; and the above-mentioned cable connector.

[0019] Herein, the electric vehicle charging assembly is characterized in that the cooling fluid supplied from the electric vehicle charger body flows into the hollow portion inside the negative (-) power unit terminal through the cooling fluid supply tube to cool the negative (-) power unit terminal, flows into the hollow portion inside the positive (+) power unit terminal through the cooling fluid transfer port via the cooling fluid transfer port and the cooling fluid transfer pipe connected to the hollow portion, or the cooling fluid transfer port, the cooling fluid transfer pipe, and the Y-shaped transfer pipe, and cools the positive (+) power unit terminal, and then is recovered to the electric vehicle charger body through the cooling fluid recovery tube connected to the positive (+) power unit terminal, thereby circulating the cooling fluid inside the electric vehicle charging cable and cable connector.

[0020] Meanwhile, an electric vehicle charging system is provided, comprising an electric vehicle charger body; and an assembly for charging the electric vehicle. Effects of the invention

[0021] The electric vehicle charging cable and cable connector according to the present invention exhibit excellent effects, including not only excellent cooling efficiency of the conductor constituting the electric vehicle charging cable and the terminal constituting the cable connector through a new structure that circulates a cooling fluid, but also reduced outer diameter and weight of the electric vehicle charging cable and a stable structure. Brief explanation of the drawing

[0022] Figure 1 illustrates an electric vehicle and an electric vehicle charger. FIG. 2 illustrates a cable connector in which an electric vehicle connector and an electric vehicle charging cable are connected, provided in an electric vehicle. FIG. 3 is a cross-sectional view of one embodiment of an electric vehicle charging cable according to the present invention. FIG. 4 is a perspective view of one embodiment of a cable connector according to the present invention and an internal view with the housing removed from the perspective view. Figure 5 shows the electric vehicle charging cable with the power unit and communication unit removed from the internal view shown in Figure 4. FIG. 6 is a front view with the electric vehicle charging cable removed from the drawing shown in FIG. 5. Specific details for implementing the invention

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed content is thorough and complete, and to ensure that the spirit of the invention is sufficiently conveyed to those skilled in the art. Throughout the specification, the same reference numerals indicate the same components.

[0024] Figure 1 illustrates an electric vehicle (EV) and an electric vehicle charger (300).

[0025] An electric vehicle (EV) refers to a vehicle that uses electrical energy stored in a battery to drive an electric motor and utilizes the motor's driving force as the vehicle's power source; specifically, it refers to a plug-in electric vehicle (PEV).

[0026] However, the above electric vehicle (EV) should not be interpreted as being limited to conventional road passenger vehicles, but should be understood as a concept that includes carts, work vehicles, or two-wheeled vehicles in addition to road passenger vehicles.

[0027] Meanwhile, the electric vehicle charger (300) is connected to an electric vehicle charging assembly composed of a cable connector (200) and an electric vehicle charging cable (100) to supply power to the electric vehicle, and the cable connector (200) is provided at the end of the electric vehicle charging cable (100).

[0028] The cable connector (200) can be installed on the electric vehicle connector (400) equipped in the electric vehicle (EV) to supply power, and in the case of a fast or ultra-fast charger, the charging of the electric vehicle can be completed in a short time.

[0029] An electric vehicle charging cable (100) that electrically connects an electric vehicle charger (300) and an electric vehicle (EV) may generate heat due to a large current capacity, and in order to resolve the risk of fire or user anxiety, the electric vehicle charging cable (100) according to the present invention uses a method of cooling the electric vehicle charging cable (100) using a cooling fluid.

[0030] FIG. 2 illustrates a cable connector (200) connected to an electric vehicle connector (400) and an electric vehicle charging cable (100) that are provided in an electric vehicle. The cable connector shown in FIG. 2 is a US / European type 'combo' type connector, which is one of the unified standards, and is a connector of a type that allows both AC slow charging and DC fast or ultra-fast charging with a single connector, and thus allows the application of the electric vehicle charging cable (100) according to the present invention.

[0031] However, the electric vehicle charging cable (100) according to the present invention can be applied to cable connectors of the Japanese 'CHAdeMO' method, the Renault 'AC 3-phase' method, or other methods, in addition to the American / European 'Combo' method shown in FIG. 2.

[0032] As shown in FIG. 2, a cable connector (200) is fixed to the end of the electric vehicle charging cable (100) according to the present invention, and the cable connector (200) has a structure that can be detachably mounted to an electric vehicle connector (400) provided in an electric vehicle (EV).

[0033] The 'combo' type cable connector integrates an AC or DC type connector, and each connector is equipped with an AC charging part (210, 410) and a DC charging part (230, 430).

[0034] Since the electric vehicle charging cable (100) connected to such a cable connector may experience heat generation due to a large current of 300 A during rapid charging, especially during ultra-rapid charging, the electric vehicle charging cable (100) according to the present invention solves the problem of heat generation in the terminals of the cable connector (200) and the conductors of the electric vehicle charging cable (100) through a new structure that circulates a cooling fluid.

[0035] FIG. 3 is a cross-sectional view of one embodiment of an electric vehicle charging cable according to the present invention.

[0036] The electric vehicle charging cable (100) according to the present invention may be configured to include: a power unit (10) for supplying power to an electric vehicle, which includes a pair of positive (+) power units (10a, 10b) and a pair of negative (-) power units (10c, 10d), and a grounding unit (20) including a grounding conductor (21) and an insulating layer (22) surrounding the grounding conductor (21); one or more communication units (30) for transmitting a control signal, which include a communication conductor (31) and an insulating layer (32) surrounding the communication conductor (31); a pair of cooling fluid tubes (60) which are flow passages for cooling fluid; and a cable jacket (50) that completely surrounds the above components.

[0037] In particular, each of the above power units (10) may include a conductor (11), an insulating layer (12) surrounding the conductor (11), and the cooling fluid tube (60) may include a cooling fluid supply tube (60b) that transports cooling fluid supplied from an electric vehicle charger body (300) connected to one end of an electric vehicle charging cable (100) to a cable connector (200) connected to the other end of the electric vehicle charging cable (100), and a cooling fluid recovery tube (60a) that recovers cooling fluid from the cable connector (200) to the electric vehicle charger body (300).

[0038] Preferably, among the cooling fluid tubes (60), a relatively large number of power units (10) may be arranged adjacently around the cooling fluid recovery tube (60a), and a relatively small number of power units (10) may be arranged adjacently around the cooling fluid supply tube (60b). This is because heat generation at the terminal inside the cable connector (200) is most severe during electric vehicle charging, so the cooling fluid transported to the terminal inside the cable connector (200) through the cooling fluid supply tube (60b) absorbs as little heat as possible from the adjacent power units (10) during the transport process to maintain a low temperature.

[0039] Specifically, the cooling fluid tube (60) may be made of materials such as high-heat resistant plastic, nylon, perfluoroalkoxyalkane (PFA), polytetrafluoroethylene (PTFE), or urethane, and may have a thickness of 1 to 8.5 mm. Here, if the thickness of the fluid tube (11) is less than 1 mm, there is a possibility that a crack may occur in the fluid tube (11) and the cooling fluid may leak when the electric vehicle charging cable (100) is repeatedly bent, whereas if it is more than 8.5 mm, the cooling fluid flowing inside the conductor (12) and the fluid tube (11) may move away from each other, and thus heat transfer may not be smooth, which may reduce the cooling efficiency.

[0040] In addition, the cooling fluid may be a liquid in which at least one of inorganic additives such as ethylene glycol, phosphates, silicates, and borates, antifreeze agents, corrosion inhibitors, high temperature stability enhancers, anti-foaming agents, or alkaline additives is added, in addition to pure non-conductive or insulating cooling water, and various liquids may be selected and used depending on the installation environment of the electric vehicle charger. Furthermore, the cooling fluid may be composed based on oil other than water, and various additives may be added accordingly.

[0041] In the above power unit (10), the conductor (11) may be a solid conductor or a composite conductor formed by combining multiple small conductors, and the material of the conductor (11) may be composed of copper or a copper alloy or aluminum or an aluminum alloy, which has excellent conductivity. In addition, when the conductor (11) is a composite conductor formed by combining multiple small conductors, the multiple small conductors may be wound transversely at a constant pitch, and a taping layer that completely wraps the multiple small conductors may be additionally provided.

[0042] The insulating layer (12) surrounding the conductor (11) may be composed of different colors to distinguish between the positive (+) power unit and the negative (-) power unit, and may be composed of, for example, rubber or plastic material in accordance with the standard IEC 62893.

[0043] Meanwhile, the grounding conductor (21) constituting the grounding unit (20) may also be configured in the form of a bundled conductor, and the insulating layer (22) surrounding the grounding conductor (21) may be composed of a rubber or plastic material conforming to the standard IEC 62893, just like the insulating layer (12) of the power unit (10). Also, the communication unit (30) has a smaller diameter than the power unit (10) or the grounding unit (20), and the insulating layer (32) surrounding the communication conductor (31) of the communication unit (30) may also be composed of a rubber or plastic material conforming to the standard IEC 62893.

[0044] The above cable jacket (50) performs the function of protecting the internal components from external impact, and may be provided with a separate interposition to improve impact resistance by removing empty space inside the cable jacket (50); however, if the cable jacket (50) is configured as a solid type, there is no need to provide an interposition.

[0045] FIG. 4 is a perspective view and an internal view with the housing removed from one embodiment of a cable connector according to the present invention, FIG. 5 is a view with the power unit and communication unit of an electric vehicle charging cable removed from the internal view shown in FIG. 4, and FIG. 6 is a front view with the electric vehicle charging cable removed from the drawing shown in FIG. 5.

[0046] As illustrated in FIGS. 4 to 6, the cable connector (200), which has a structure that can be detachably mounted to an electric vehicle connector (400) connected to the end of an electric vehicle charging cable (100) and equipped in an electric vehicle (EV), can support both slow charging and fast charging in a ‘Combo (TYPE1)’ method in which an AC charging part (210) for slow charging and a DC charging part (230) for fast charging are respectively equipped. In addition to the US / European ‘Combo (TYPE1)’ method which will be decided as a unified standard in the future, it can also be applied to the Japanese ‘CHAdeMO’ method or the Renault ‘AC 3-phase’ method.

[0047] In the above cable connector (200), the inside of the housing may be provided with a pair of power unit terminals (240) that are connected to the conductor (11) and cooling fluid tube (60) of the power unit (10) constituting the electric vehicle charging cable (100) and to the charging unit (210, 230), a plurality of communication unit terminals (250) that are connected to the communication conductor (31) of the communication unit (30) of the electric vehicle charging cable (100), and a grounding unit terminal (260) that is connected to the grounding conductor (21) of the grounding unit (20) of the electric vehicle charging cable (100).

[0048] Specifically, as a pair of power unit terminals (240), the positive (+) power unit terminal (240a) is connected to each of the pair of positive (+) power units (10a, 10b) constituting the power unit (10) of the electric vehicle charging cable (100) through a pair of connecting parts (241a, 242a), and the cooling fluid recovery tube (60a) among the cooling fluid tubes (60) can also be connected through the tube connecting part (244a).

[0049] Additionally, as a pair of power unit terminals (240), the negative (-) power unit terminal (240b) is connected to each of the pair of negative (-) power units (10c, 10d) constituting the power unit (10) of the electric vehicle charging cable (100) through a pair of connecting parts (241b, 242b), and the cooling fluid supply tube (60b) among the cooling fluid tubes (60) can also be connected through the tube connecting part (244b).

[0050] Furthermore, each of the pair of power unit terminals (240a, 240b) may be provided with a hollow portion in which a cooling fluid can be stored, and a pair of cooling fluid transfer ports (243a, 243b) connected to each of the hollow portions and a cooling fluid transfer pipe (270) connected to the end of each of the pair of cooling fluid transfer ports (243a, 243b) may be provided, and the end of the cooling fluid transfer pipe (270) may be connected through a separate Y-shaped transfer pipe (290) as shown in FIG. 5a, or the end of the cooling fluid transfer pipe (270) may be connected in a U-shape without a separate transfer pipe as shown in FIG. 5b.

[0051] Thus, the cooling fluid supplied from the electric vehicle charger main body (300) flows into the hollow portion inside the negative (-) power unit terminal (240b) through the cooling fluid supply tube (60b) to cool the negative (-) power unit terminal (240b), and then flows into the hollow portion inside the positive (+) power unit terminal (240a) through the cooling fluid transfer port (243a) via the cooling fluid transfer port (243b) and cooling fluid transfer pipe (270) connected to the hollow portion, or the cooling fluid transfer port (243b), cooling fluid transfer pipe (270), and Y-shaped transfer pipe (290), to cool the positive (+) power unit terminal (240a), and then is recovered to the electric vehicle charger main body (300) through the cooling fluid recovery tube (60a) connected to the positive (+) power unit terminal (240a), thereby cooling the inside of the electric vehicle charging cable (100) and cable connector (200). While circulating, the power unit terminal (240) that generates excessive heat inside the cable connector (200) and the conductor (11) of the power unit (10) that generates heat inside the electric vehicle charging cable (100) can be cooled quickly and effectively.

[0052] Furthermore, by ensuring that the path through which the cooling fluid is transported between the hollow portions of each of the pair of power unit terminals (240a, 240b) is not simply formed, but is instead transported by bypassing through the pair of cooling fluid transport ports (243a, 243b), cooling fluid transport pipe (270), Y-shaped transport pipe (290), etc. as described above, the problem of the cooling fluid, which is unintentionally partially charged while cooling the negative (-) power unit terminal (240b), coming into direct contact with the positive (+) power unit terminal (240a) and causing a short circuit can be prevented.

[0053] The above cable connector (200) may additionally be equipped with a temperature sensor (280) capable of detecting the temperature of each of the pair of power unit terminals (240a, 240b), thereby allowing the temperature of the pair of power unit terminals (240a, 240b) to be monitored in real time and the temperature and supply speed of the cooling fluid to further improve cooling efficiency.

[0054] The present invention relates to an electric vehicle charging assembly comprising the electric vehicle charging cable (100) and cable connector (200) described above.

[0055] Although this specification has been described with reference to preferred embodiments of the present invention, those skilled in the art may modify and change the present invention in various ways without departing from the spirit and scope of the present invention as described in the claims below. Therefore, if a modified embodiment basically includes the components of the claims of the present invention, it should be considered to be included within the technical scope of the present invention. Explanation of the symbols

[0056] 100 : Electric vehicle charging cable 10 : Power Unit 20 : Grounding unit 30 : Communication unit 60 : Cooling fluid tube 200 : Cable connector 300 : Electric vehicle charger 400 : Electric vehicle connector

Claims

Claim 1 An electric vehicle charging cable connecting an electric vehicle charger body and a cable connector for charging an electric vehicle, comprising: a plurality of power units that supply power to an electric vehicle; a pair of cooling fluid tubes that are flow passages for cooling fluid; and a cable jacket that completely encloses the plurality of power units and the pair of cooling fluid tubes, wherein each of the plurality of power units comprises a conductor and an insulating layer that encloses the conductor, and the plurality of power units comprises one or more pairs of positive (+) power units and one or more pairs of negative (-) power units, and the pair of cooling fluid tubes comprises a cooling fluid supply tube that transports cooling fluid supplied from the electric vehicle charger body to the cable connector and a cooling fluid recovery tube that recovers cooling fluid from the cable connector to the electric vehicle charger body. Claim 2 An electric vehicle charging cable according to claim 1, characterized in that a relatively large number of power units are arranged adjacently around the cooling fluid recovery tube, and a relatively small number of power units are arranged adjacently around the cooling fluid supply tube. Claim 3 An electric vehicle charging cable according to claim 1 or 2, further comprising a grounding unit including a grounding conductor and an insulating layer surrounding the grounding conductor inside the cable jacket, and one or more communication units including a communication conductor and an insulating layer surrounding the communication conductor and transmitting a control signal. Claim 4 An electric vehicle charging cable according to paragraph 2, characterized in that one or more interposed elements are disposed in the empty space inside the cable jacket. Claim 5 An electric vehicle charging cable according to claim 1 or 2, characterized in that the cooling fluid tube is made of one or more materials selected from the group consisting of high-heat resistant plastic, nylon, perfluoroalkoxyalkane (PFA), fluorinated polyethylene (PTFE, Poly Tetra Fluoro Ethylene), and urethane. Claim 6 An electric vehicle charging cable according to claim 5, characterized in that the cooling fluid tube has a thickness of 1 to 8.5 mm. Claim 7 A cable connector that can be detachably mounted to an electric vehicle connector provided in an electric vehicle, and connected to the other end of an electric vehicle charging cable according to claim 1 or 2, to which an electric vehicle charger body is connected at one end, wherein the cable connector comprises a pair of power unit terminals, each having one or more positive (+) power units and one or more negative (-) power units connected thereto and one having a pair of cooling fluid tubes connected thereto, wherein a hollow portion capable of storing a cooling fluid is provided inside each of the positive (+) power unit terminal and the negative (-) power unit terminal of the pair of power unit terminals, and a flow path capable of transporting the cooling fluid is formed between the hollow portions. Claim 8 A cable connector according to claim 7, wherein the pair of power unit terminals are provided with a pair of cooling fluid transfer ports connected to each of the hollow portions and a cooling fluid transfer pipe connected to the end of each of the pair of cooling fluid transfer ports, and the end of the cooling fluid transfer pipe is connected through a separate Y-shaped transfer pipe or connected in a U-shape without a separate transfer pipe. Claim 9 A cable connector characterized by additionally including a temperature sensor capable of detecting the temperature of the cooling chamber in claim 7. Claim 10 An electric vehicle charging assembly comprising: an electric vehicle charging cable of claim 1 or 2; and a cable connector of claim 7. Claim 11 An electric vehicle charging assembly according to claim 10, wherein the cooling fluid supplied from the electric vehicle charger body flows into the hollow portion inside the negative (-) power unit terminal through the cooling fluid supply tube to cool the negative (-) power unit terminal, flows into the hollow portion inside the positive (+) power unit terminal through the cooling fluid transfer port connected to the hollow portion, or through the cooling fluid transfer port, the cooling fluid transfer pipe, and the Y-shaped transfer pipe, and then flows into the hollow portion inside the positive (+) power unit terminal through the cooling fluid transfer port to cool the positive (+) power unit terminal, and then is recovered to the electric vehicle charger body through the cooling fluid recovery tube connected to the positive (+) power unit terminal, characterized in that the cooling fluid circulates inside the electric vehicle charging cable and cable connector. Claim 12 An electric vehicle charging system comprising: an electric vehicle charger body; and an electric vehicle charging assembly of claim 10.

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