Electric vehicle charging system and method for preventing electric shock accident

WO2026160496A1PCT designated stage Publication Date: 2026-07-30IND UNIV COOP FOUND SUNMOON UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
IND UNIV COOP FOUND SUNMOON UNIV
Filing Date
2025-01-22
Publication Date
2026-07-30

Smart Images

  • Figure KR2025001193_30072026_PF_FP_ABST
    Figure KR2025001193_30072026_PF_FP_ABST
Patent Text Reader

Abstract

The present invention relates to an electric vehicle charging system and method. According to the present invention, in order to address an issue with conventional electric vehicle chargers which do not provide notifications or information regarding the risk of electric shock during electric vehicle charging and therefore fail to prevent an electric shock accident occurring when the chargers are connected or disconnected under wet conditions, provided are an electric vehicle charging system and method for preventing an electric shock accident, the system and method, when a charging connector or a power plug is wet from rain, snow, or the like, detecting same and cutting off charging current, as well as notifying a user of the risk of an electric shock accident before a charger is connected, so that, when the charger is connected to or disconnected from an electric vehicle, electric shock caused by moisture can be prevented, thereby effectively preventing unnecessary damage to human life and property caused by a negligent accident during electric vehicle charging.
Need to check novelty before this filing date? Find Prior Art

Description

Electric vehicle charging system and method for preventing electric shock accidents

[0001] The present invention relates to an electric vehicle charging system and method for charging an electric vehicle. More specifically, the invention addresses the limitations of conventional electric vehicle chargers, which generally pose a risk of electric shock when connecting a charger with wet hands or moisture on the power plug when connecting power for various electronic devices or charging a battery. Since no notification or guidance regarding such electric shock risk is provided during the charging of an electric vehicle, the invention is configured to detect moisture on the charging connector or power plug due to rain or snow and cut off the charging current, thereby preventing the risk of electric shock caused by moisture when connecting or disconnecting the charger to the electric vehicle. This invention aims to solve the problems of conventional electric vehicle chargers by configuring the system to prevent the risk of electric shock caused by moisture when connecting or disconnecting the charger to the electric vehicle.

[0002] Furthermore, the present invention relates to an electric vehicle charging system and method for preventing electric shock accidents, configured to solve the problem of conventional electric vehicle chargers that had limitations in being unable to prevent electric shock accidents caused by connecting or disconnecting the charger in a wet state as described above. This is achieved by detecting moisture in the charging connector or power plug due to rain or snow and cutting off the charging current, and simultaneously notifying the user of the risk of electric shock accidents in advance through a display on the vehicle or a display and voice provided on the charging connector handle before connecting the charger even after the rain or snow has stopped. This allows for the prevention of the risk of electric shock caused by moisture when connecting or disconnecting the charger to the electric vehicle, thereby effectively preventing unnecessary loss of life and property damage caused by safety accidents during electric vehicle charging.

[0003]

[0004] Recently, as the adoption of electric vehicles increases, the demand for charging facilities for electric vehicles is also rising. Accordingly, various studies are actively being conducted on electric vehicle charging systems and methods to enable faster and more convenient charging of electric vehicles.

[0005] Accordingly, as presented in, for example, "Electric vehicle rapid charger equipped with cooling and cleaning air conditioning" in Korean Registered Patent Publication No. 10-2469211 and "Electric vehicle charger and electric vehicle charging method" in Korean Registered Patent Publication No. 10-2181995, various devices and methods have been presented in the past to perform charging of electric vehicles more quickly and efficiently, but the contents of the prior art as described above had the following limitations.

[0006] More specifically, generally, there is a risk of electric shock if a charger is connected with wet hands or water on the power plug when connecting various electronic devices or batteries. However, since electric vehicle chargers are often installed outdoors as well as indoors due to their characteristics, users are at risk of being exposed to electric shock accidents.

[0007] In other words, if a charger is connected to or disconnected from an electric vehicle while moisture remains in the charger—for example, during snow or rain, or immediately after it has stopped—an electric shock accident may occur due to the moisture. However, most of the conventional electric vehicle charging systems and methods described above do not include a function to detect moisture during charging and provide a warning about the risk of electric shock. Consequently, there is a limitation in that it is impossible to prevent electric shock accidents in advance, as users may proceed with charging without being aware of the risk of electric shock.

[0008] Therefore, in order to resolve the limitations of the conventional electric vehicle charging systems and methods described above, it is desirable to present a new configuration of an electric vehicle charging system and method that, for example, provides a notification regarding the risk of electric shock due to moisture during charging of the electric vehicle, and simultaneously detects moisture in the charging connector or power plug due to rain or snow and cuts off the charging current, thereby preventing the risk of electric shock caused by moisture when connecting or disconnecting the charger to the electric vehicle; however, a device or method that satisfies all such requirements has not yet been presented.

[0009]

[0010] The present invention aims to solve the problems of the prior art as described above. Accordingly, the objective of the present invention is to provide an electric vehicle charging system and method for preventing electric shock accidents, configured to detect moisture in the charging connector or power plug due to rain or snow and cut off the charging current, thereby preventing the risk of electric shock caused by moisture when connecting or disconnecting the charger to the electric vehicle. This is achieved by solving the limitations of prior electric vehicle chargers, which generally pose a risk of electric shock when connecting power to various electronic products or charging a battery while the power is connected with wet hands or water on the power plug, and thus cannot prevent electric shock accidents caused by moisture when connecting or disconnecting the charger in a wet state, such as during snow or rain.

[0011] Furthermore, another objective of the present invention is to provide an electric vehicle charging system and method for preventing electric shock accidents, which is configured to solve the problems of conventional electric vehicle chargers that had limitations in being unable to prevent electric shock accidents caused by connecting or disconnecting the charger in a wet state as described above. This is achieved by detecting moisture in the charging connector or power plug due to rain or snow and cutting off the charging current, and simultaneously notifying the user of the risk of electric shock accidents in advance through a display on the vehicle or a display and voice provided on the charging connector handle before connecting the charger even after the rain or snow has stopped. This allows for the prevention of the risk of electric shock caused by moisture when connecting or disconnecting the charger to the electric vehicle, thereby effectively preventing unnecessary loss of life and property damage caused by safety accidents during electric vehicle charging.

[0012]

[0013] To achieve the above-mentioned purpose, according to the present invention, an electric vehicle charging system for preventing electric shock accidents is provided, comprising: a charger body equipped with a charging connector for charging an electric vehicle; a sensor unit for detecting moisture or water in each part of the charger body; and a notification unit for delivering a notification of the risk of electric shock to a user when moisture or water is detected through the sensor unit.

[0014] Herein, the electric vehicle charging system is characterized by further comprising: a communication unit for communicating with an external device; a database unit for storing various data including pre-written notification messages and notification messages generated by a user; and a control unit for controlling the overall operation of the electric vehicle charging system.

[0015] In addition, the sensor unit is characterized by being configured to include at least one moisture detection sensor or humidity sensor installed at a predetermined location on the charger body to detect water or moisture.

[0016] In addition, the above notification unit is characterized by being configured to perform processing that visually transmits various information, including a notification message regarding the risk of electric shock, through a display provided in a charging vehicle or a display provided in a charging connector.

[0017] Furthermore, the above notification unit is characterized by being configured to visually transmit various information, including a notification message regarding the risk of electric shock, through a display provided in a charging vehicle or a display provided in a charging connector, while simultaneously transmitting a voice notification regarding the risk of electric shock through a speaker.

[0018] In addition, the above notification unit is characterized by being configured to transmit a notification of the risk of electric shock through a display provided in a charging vehicle and a display and speaker provided in a charging connector, while simultaneously transmitting a notification or message regarding the risk of electric shock through a user terminal including a smartphone or tablet PC.

[0019] In addition, the communication unit is characterized by including a communication module for transmitting and receiving various data by communicating with an external device via at least one of wired or wireless communication, and is configured to receive sensor data detected from each sensor of the sensor unit and to perform a process of transmitting a notification message regarding the risk of electric shock to a pre-designated contact including a charging vehicle, a display equipped on a charging connector, a user terminal, and a server according to a predetermined setting.

[0020] Furthermore, the above-mentioned database unit is characterized by being configured to perform a process of constructing a database related to the overall operation of the electric vehicle charging system by storing notification messages that are pre-written or generated by the user, and storing various data obtained as a result of the overall processing of the electric vehicle charging system, including usage history, notification history, and accident history of the charger for each user.

[0021] In addition, the control unit is characterized by being configured to determine whether there is a risk of electric shock based on sensor data detected by each detection sensor of the sensor unit according to a predetermined setting or standard, and if it is determined that there is a risk of electric shock, to cut off the charging current to stop charging, and at the same time, to perform a process of delivering a notification of the risk of electric shock through the notification unit according to a predetermined setting.

[0022] Here, the control unit is characterized by being configured to perform a process of delivering a notification of electric shock risk using content selected by the user from among the notification messages that are pre-written and stored in the database, or delivering a notification of electric shock risk using a notification message written by the user and stored in the database.

[0023] Alternatively, the control unit is characterized by being configured to automatically perform processing to determine whether there is a risk of electric shock from sensor data received in real time and to generate and provide a notification using an artificial intelligence algorithm based on deep learning, machine learning, an artificial neural network (ANN), or a convolutional neural network (CNN).

[0024] In addition, the sensor unit is configured to include a temperature sensor for detecting temperature in addition to a detection sensor for detecting water or moisture, and the control unit is configured to determine that abnormal overheating or fire has occurred when the temperature value measured by the temperature sensor deviates from a predetermined reference value or reference range, cut off the power to stop charging, and simultaneously perform a process of delivering a notification regarding the matter through the notification unit.

[0025] Furthermore, according to the present invention, an electric vehicle charging method using an electric vehicle charging system for preventing electric vehicle accidents described above is provided, comprising: a data collection step in which a process of collecting sensor data detected through each detection sensor installed in each part of the electric vehicle charger is performed through a control unit of the electric vehicle charging system for preventing electric vehicle accidents; an electric vehicle risk determination step in which a process of determining an electric vehicle risk is performed through the control unit if moisture or water is detected based on the sensor data received through the data collection step, according to a predetermined setting or standard; and an electric vehicle risk notification step in which a process of cutting off the charging current and delivering a notification to a user according to a predetermined setting is performed through the control unit if it is determined that there is an electric vehicle risk as a result of the determination step for the electric vehicle risk determination step.

[0026] In addition, according to the present invention, an electric vehicle charging station management system is provided, comprising: at least one electric vehicle charger installed for charging an electric vehicle; a user terminal for a user to request and receive various information regarding the status and operation of each electric vehicle charger; and a service server configured to perform processing that monitors the risk of electric shock and the occurrence of accidents or abnormalities according to a predetermined setting based on data received from each electric vehicle charger, and provides various information customizedly through the user terminal of the corresponding user according to the user's request. The electric vehicle charger is configured to perform processing that uses the electric vehicle charging system for preventing electric shock accidents described above to detect water or moisture according to a predetermined setting, determines the risk of electric shock, and transmits various information regarding the overall status and operation to the service server.

[0027] Here, the user terminal is characterized by being configured by installing a dedicated application linked with the electric vehicle charger and the service server on a personal portable information and communication terminal including a smartphone or tablet PC, or an information processing device including a PC or laptop.

[0028]

[0029] As described above, according to the present invention, an electric vehicle charging system and method for preventing electric shock accidents are provided, which are configured to detect when there is moisture in the charging connector or power plug due to rain or snow and cut off the charging current, and simultaneously notify the user of the risk of electric shock accident in advance through a display of the vehicle or a display and voice provided on the charging connector handle before connecting the charger even after the rain or snow has stopped. This allows for the prevention of the risk of electric shock caused by moisture when connecting or disconnecting the charger to the electric vehicle, thereby effectively preventing unnecessary human and property damage caused by safety accidents during electric vehicle charging.

[0030] In addition, according to the present invention, an electric vehicle charging system and method for preventing electric shock accidents are provided, which are configured to detect moisture as described above and cut off the charging current, while simultaneously notifying the user of the risk of electric shock accidents in advance before connecting the charger. This solves the problem of conventional electric vehicle chargers, which had limitations in that they could not prevent electric shock accidents from occurring when connecting or disconnecting the charger in a wet state because no notification or guidance regarding the risk of electric shock was provided during the charging of the electric vehicle.

[0031]

[0032] FIG. 1 is a block diagram schematically showing the overall configuration of an electric vehicle charging system for preventing electric shock accidents according to an embodiment of the present invention.

[0033] FIG. 2 is a flowchart schematically showing the overall configuration of an electric vehicle charging method for preventing electric shock accidents using an electric vehicle charging system for preventing electric shock accidents according to an embodiment of the present invention shown in FIG. 1.

[0034] FIG. 3 is a block diagram schematically showing the overall configuration of an electric vehicle charging station management system using an electric vehicle charging system for preventing electric shock accidents according to an embodiment of the present invention shown in FIG. 1.

[0035]

[0036] Hereinafter, specific embodiments of an electric vehicle charging system and method for preventing electric shock accidents according to the present invention will be described with reference to the attached drawings.

[0037] Hereinafter, it should be noted that the following description is merely one embodiment for carrying out the present invention, and the present invention is not limited only to the contents of the embodiment described below.

[0038] In addition, it should be noted that in the following description of the embodiments of the present invention, detailed descriptions of parts that are identical or similar to the prior art or that are deemed to be easily understood and implemented by those skilled in the art have been omitted for the sake of brevity.

[0039] Next, with reference to the drawings, specific details of the electric vehicle charging system and method for preventing electric shock accidents according to the present invention will be described.

[0040] More specifically, first, referring to FIG. 1, FIG. 1 is a block diagram schematically showing the overall configuration of an electric vehicle charging system (10) for preventing electric shock accidents according to an embodiment of the present invention.

[0041] As shown in FIG. 1, an electric vehicle charging system (10) for preventing electric shock accidents according to an embodiment of the present invention may be broadly configured to include a charger body (11) equipped with a charging connector for charging an electric vehicle, a sensor unit (12) for detecting the presence of moisture or water in each part of the charger body (11), such as a charging connector and a power plug, an alert unit (13) for delivering an alert to a user about the risk of electric shock when moisture or water is detected through the sensor unit (12), a communication unit (14) for communicating with an external device, a database unit (15) for storing various data including a pre-written alert message and an alert message generated by a user, and a control unit (16) for controlling the overall operation of each of the above-mentioned units and the electric vehicle charging system (10).

[0042] Here, the above-described charger body (11) may be configured to be identical or similar to, for example, an existing electric vehicle charger, but is not particularly limited as long as it can provide a charging function for charging an electric vehicle. Accordingly, in order to simplify the explanation, it should be noted that in the present invention, detailed descriptions of contents that are obvious to a person skilled in the art from the content of the prior art as described above, or that a person skilled in the art can easily understand and implement by referring to the content of the prior art, have been omitted.

[0043] Additionally, the sensor unit (12) described above may be configured to include at least one moisture detection sensor or humidity sensor installed at a predetermined location on the charger body (11) to detect water or moisture in the charging connector or power plug, etc.

[0044] In addition, the above-mentioned notification unit (13) may be configured to perform a process of visually transmitting various information, including a notification message about the risk of electric shock, through, for example, a display provided in a vehicle or a display provided in a charging connector.

[0045] At this time, the above-mentioned notification unit (13) may be configured to visually convey a warning of electric shock risk through a display as described above, and at the same time convey a warning of electric shock risk through a speaker or the like.

[0046] Furthermore, it should be noted that the present invention can be configured in various ways as needed, such as the above-mentioned notification unit (13) being configured to transmit a notification of the risk of electric shock through a display provided in the vehicle and a display and speaker provided in the charging connector as described above, and at the same time, to transmit a notification or message of the risk of electric shock through a user terminal such as a smartphone or tablet PC.

[0047] To this end, the communication unit (14) described above may be configured to include a communication module for transmitting and receiving various data by communicating with an external device in at least one of wired or wireless communication, and to receive sensor data detected from each sensor of the sensor unit (12) and transmit a notification message regarding the risk of electric shock to a vehicle, charging connector, user terminal, or server, etc., according to a predetermined setting.

[0048] In addition, the above-mentioned database unit (15) may be configured to store notification messages that are pre-written or generated by a user, and at the same time, store various data obtained as a result of the overall processing of each unit and the electric vehicle charging system (10), such as usage history, notification history, and accident history for each user, thereby performing a process to build a database related to the overall operation of the electric vehicle charging system (10).

[0049] In addition, the above-described control unit (16) may be configured to determine whether there is a risk of electric shock based on sensor data detected from each sensor of the sensor unit (12) according to a predetermined setting or standard, and if it is determined that there is a risk of electric shock, to cut off the charging current and perform a process of delivering a notification of the risk of electric shock according to a predetermined setting.

[0050] That is, for example, the above-described control unit (16) may be configured to determine that there is a risk of electric shock when moisture is detected in the charging connector or when humidity exceeds a predetermined standard value or range from sensor data received through the sensor unit (12), and to stop charging by cutting off the charging current, and at the same time, to perform processing to generate a notification of the risk of electric shock according to a predetermined setting and transmit it to a designated contact.

[0051] At this time, the notification regarding the risk of electric shock may be configured to use content selected by the user from among the notification messages stored in advance in the database unit (15), or it may be configured to use content created by the user and stored in the database unit (15).

[0052] Furthermore, it should be noted that the present invention can be configured in various ways as needed, such as the above-mentioned control unit (15) being configured to automatically perform processing to determine whether there is a risk of electric shock from sensor data received in real time and to generate and provide a notification using, for example, an artificial intelligence algorithm based on deep learning or machine learning, or an artificial neural network (ANN) or a convolutional neural network (CNN).

[0053] Therefore, as described above, an electric vehicle charging system (10) for preventing electric shock accidents according to an embodiment of the present invention can be easily implemented.

[0054] Here, regarding the more specific details of the process for detecting moisture and cutting off power, and the process for providing a notification of electric shock risk in the embodiments of the present invention described above, since these matters can be appropriately implemented by a person skilled in the art by referring to the contents of detection sensors, notification provision systems, and methods of the prior art, it should be noted that, in order to simplify the explanation, the detailed description of the present invention has been omitted regarding details that are obvious to a person skilled in the art from the contents of the prior art as described above, or details that a person skilled in the art can easily understand and implement by referring to prior art literature, etc.

[0055] In addition, although the present invention has been described with an example in which moisture is detected through the sensor unit (12) to prevent electric shock accidents in the above-described embodiment, the present invention is not necessarily limited to the content presented in the above-described embodiment. That is, the present invention may be configured such that, for example, a temperature sensor for detecting the temperature of a charging connector or power plug is additionally included in the sensor unit (12) in addition to the detection sensor for detecting moisture, and a process to stop charging and cut off the power is performed through the control unit (15) in the above-described manner when an abnormality such as excessive heat generation is detected during charging, thereby effectively preventing not only electric shock accidents but also fires during charging. It should be noted that the present invention may be configured to be modified and changed in various ways as needed by those skilled in the art within the scope that does not deviate from the spirit and essence of the present invention.

[0056] In addition, according to the present invention, an electric vehicle charging method for preventing electric shock accidents can be easily implemented by using an electric vehicle charging system (10) for preventing electric shock accidents according to an embodiment of the present invention configured as described above.

[0057] That is, referring to FIG. 2, FIG. 2 is a flowchart schematically showing the overall configuration of an electric vehicle charging method for preventing electric shock accidents using an electric vehicle charging system (10) for preventing electric shock accidents according to an embodiment of the present invention shown in FIG. 1.

[0058] As shown in FIG. 2, the electric vehicle charging method for preventing electric shock accidents according to an embodiment of the present invention may be broadly divided into: a data collection step (S10) in which a process of collecting sensor data detected through each detection sensor installed in each part of the electric vehicle charger is performed through the control unit (15) of the electric vehicle charging system (10) for preventing electric shock accidents; an electric shock risk judgment step (S20) in which a process of determining the risk of electric shock according to a predetermined setting or standard is performed through the control unit (15) based on the sensor data received through the data collection step (S10) when moisture or water is detected; and an electric shock risk notification step (S30) in which a process of cutting off the charging current and delivering a notification to the user according to a predetermined setting is performed through the control unit (15) if it is determined that there is a risk of electric shock as a result of the judgment in the electric shock risk judgment step (S20).

[0059] Furthermore, according to the present invention, by using the electric vehicle charging system (10) for preventing electric shock accidents according to the embodiment of the present invention configured as described above, an electric vehicle charging station management system configured to prevent and manage electric shock accidents at an electric vehicle charging station where a plurality of electric vehicle chargers are installed can be easily implemented.

[0060] That is, referring to FIG. 3, FIG. 3 is a block diagram schematically showing the overall configuration of an electric vehicle charging station management system (30) configured using an electric vehicle charging system (10) for preventing electric shock accidents according to an embodiment of the present invention shown in FIG. 1.

[0061] As shown in FIG. 3, an electric vehicle charging station management system (30) according to an embodiment of the present invention may be broadly configured to include at least one electric vehicle charger (31) installed for charging an electric vehicle, a user terminal (32) for a user to request and receive various information regarding the status and operation of each electric vehicle charger (31), and a service server (33) that monitors the risk of electric shock and the occurrence of accidents or abnormalities according to a predetermined setting based on data received from each electric vehicle charger (31), and performs processing to provide various information in a customized manner through the user terminal (32) of the corresponding user according to the user's request.

[0062] Here, the electric vehicle charger (31) described above may be configured to perform a process of detecting water or moisture according to a predetermined setting to determine the risk of electric shock and transmitting various information regarding the overall status and operation of the electric vehicle charger (31) to a service server (33) using the electric vehicle charging system (10) for preventing electric shock accidents according to the embodiment of the present invention shown in FIG. 1.

[0063] In addition, the above-mentioned user terminal (32) can be configured by installing a dedicated application that links with the above-mentioned electric vehicle charger (31) and service server (33) on an information and communication terminal that is portable by an individual, such as a smartphone or tablet PC, or an information processing device such as a PC or laptop, and thereby can be configured with a simpler configuration and lower cost without the need to implement separate hardware.

[0064] Accordingly, as described above, an electric vehicle charging system and method for preventing electric shock accidents according to an embodiment of the present invention can be implemented. By doing so, according to the present invention, if moisture is present in the charging connector or power plug due to rain or snow, etc., it is configured to detect this and cut off the charging current, and at the same time, even after the rain or snow has stopped, before connecting the charger, the user is notified in advance of the risk of electric shock accident through a display on the vehicle or a display and voice provided on the charging connector handle, etc., thereby effectively preventing unnecessary loss of life and property damage by preventing the risk of electric shock caused by moisture when connecting or disconnecting the charger to the electric vehicle.

[0065] Although the details of the electric vehicle charging system and method for preventing electric shock accidents according to the present invention have been described above through the embodiments of the present invention, the present invention is not limited only to the contents described in the above embodiments. Therefore, it is obvious that the present invention can be modified, changed, combined, and substituted in various ways according to design needs and other various factors by those skilled in the art to which the present invention belongs.

[0066]

[0067] [Explanation of the symbol]

[0068] 10. Electric Vehicle Charging System

[0069] 11. Charger body

[0070] 12. Sensor section

[0071] 13. Notification Department

[0072] 14. Communications Department

[0073] 15. Database Department

[0074] 16. Control Unit

[0075] 30. Electric Vehicle Charging Station Management System

[0076] 31. Electric Vehicle Charger

[0077] 32. User terminal

[0078] 33. Service Server

Claims

1. In an electric vehicle charging system for preventing electric shock accidents, A charger body equipped with a charging connector for charging an electric vehicle; A sensor unit for detecting moisture or water in each part of the charger body; and An electric vehicle charging system for preventing electric shock accidents, characterized by comprising a notification unit for delivering a notification of the risk of electric shock to the user when moisture or water is detected through the sensor unit.

2. In Paragraph 1, The above electric vehicle charging system is, A communication unit for communicating with an external device; A database unit for storing various data including pre-written notification messages and notification messages generated by the user; and An electric vehicle charging system for preventing electric shock accidents, characterized by further comprising a control unit for controlling the overall operation of the electric vehicle charging system.

3. In Paragraph 1, The sensor unit above is, An electric vehicle charging system for preventing electric shock accidents, characterized by comprising at least one moisture detection sensor or humidity sensor installed at a predetermined location on the main body of the charger to detect water or moisture.

4. In Paragraph 1, The above notification unit is, An electric vehicle charging system for preventing electric shock accidents, characterized by being configured to perform processing that visually transmits various information, including a notification message about the risk of electric shock, through a display provided in a charging vehicle or a display provided in a charging connector.

5. In Paragraph 1, The above notification unit is, An electric vehicle charging system for preventing electric shock accidents, characterized by being configured to visually convey various information, including a warning message about the risk of electric shock, through a display provided in a charging vehicle or a display provided in a charging connector, while simultaneously conveying a warning about the risk of electric shock audibly through a speaker.

6. In Paragraph 1, The above notification unit is, An electric vehicle charging system for preventing electric shock accidents, characterized by being configured to transmit a warning of electric shock risk through a display provided in a charging vehicle and a display and speaker provided in a charging connector, while simultaneously transmitting a warning or message of electric shock risk through a user terminal including a smartphone or tablet PC.

7. In Paragraph 2, The above communication unit is, A communication module for transmitting and receiving various data by communicating with an external device via at least one of wired or wireless communication, An electric vehicle charging system for preventing electric shock accidents, characterized by being configured to receive sensor data detected from each sensor of the sensor unit and to perform a process of transmitting a notification message regarding the risk of electric shock to a pre-designated contact including a charging vehicle, a display provided in a charging connector, a user terminal, and a server according to a predetermined setting.

8. In Paragraph 2, The above database department is, An electric vehicle charging system for preventing electric shock accidents, characterized by being configured to perform a process of building a database related to the overall operation of the electric vehicle charging system by storing various data obtained as a result of the overall processing of the electric vehicle charging system, including usage history, notification history, and accident occurrence history of the charger for each user, while simultaneously storing notification messages that are pre-written or generated by the user.

9. In Paragraph 2, The above control unit is, Based on sensor data detected by each detection sensor of the above sensor unit, the risk of electric shock is determined according to predetermined settings or standards, and An electric vehicle charging system for preventing electric shock accidents, characterized by being configured to cut off the charging current to stop charging when it is determined that there is a risk of electric shock, and at the same time, to perform a process of transmitting a notification of the risk of electric shock through the notification unit according to a predetermined setting.

10. In Paragraph 9, The above control unit is, Delivering a notification regarding the risk of electric shock using content selected by the user from among the notification messages pre-written and stored in the aforementioned database, or Alternatively, an electric vehicle charging system for preventing electric shock accidents is characterized by being configured to perform a process of delivering a notification of the risk of electric shock using a notification message created by a user and stored in the database.

11. In Paragraph 2, The above control unit is, An electric vehicle charging system for preventing electric shock accidents, characterized by being configured to automatically perform processing to determine whether there is a risk of electric shock from sensor data received in real time and to generate and provide an alert using an artificial intelligence algorithm based on deep learning, machine learning, artificial neural networks (ANN), or convolutional neural networks (CNN).

12. In Paragraph 2, The sensor unit above is, In addition to a sensing sensor for detecting water or moisture, it is configured to further include a temperature sensor for detecting temperature, and The above control unit is, An electric vehicle charging system for preventing electric shock accidents, characterized by being configured to perform a process in which, when the temperature value measured by the above-mentioned temperature sensor deviates from a predetermined reference value or reference range, it is determined that abnormal heat generation or fire has occurred, the power is cut off to stop charging, and at the same time, a notification regarding the content is delivered through the above-mentioned notification unit.

13. A method for charging an electric vehicle using an electric vehicle charging system for preventing electric shock accidents as described in any one of claims 1 to 12, wherein A data collection step in which the processing of collecting sensor data detected through each detection sensor installed in each part of the electric vehicle charger is performed through the control unit of the electric vehicle charging system for preventing electric shock accidents; An electric shock risk determination step in which, based on sensor data received through the above data collection step, if moisture or water is detected, a process for determining the electric shock risk is performed through the control unit according to a predetermined setting or standard; and An electric vehicle charging method for preventing electric shock accidents, characterized by comprising an electric shock risk notification step in which, if the electric shock risk judgment step determines that there is an electric shock risk, the charging current is cut off and a notification is delivered to the user according to a predetermined setting is performed through the control unit.

14. In an electric vehicle charging station management system, At least one electric vehicle charger installed for charging electric vehicles; A user terminal for a user to request and receive various information regarding the status and operation of each electric vehicle charger; and It is configured to include a service server that monitors the risk of electric shock and the occurrence of accidents or abnormalities according to predetermined settings based on data received from each electric vehicle charger, and performs processing to provide various information in a customized manner through the corresponding user's terminal upon the user's request. The above electric vehicle charger is, An electric vehicle charging station management system characterized by being configured to perform a process of detecting water or moisture according to a predetermined setting to determine the risk of electric shock and transmitting various information regarding the overall status and operation to the service server, using an electric vehicle charging system for preventing electric shock accidents described in any one of claims 1 to 12.

15. In Paragraph 14, The above user terminal is, An electric vehicle charging station management system characterized by being configured by installing a dedicated application linked with the electric vehicle charger and the service server on a personal portable information and communication terminal including a smartphone or tablet PC, or an information processing device including a PC or laptop.