KR102498464B1 - Wireless charging system for electric vehicle - Google Patents

Abstract

According to the present invention, since the electric charging method of the charger and the electric vehicle is operated based on a non-contact method, the design is simple and the installation and operating costs can be reduced, and the charging process is simple and convenient compared to the conventional contact method. Accuracy and reliability of charging service can be improved by significantly reducing failures and errors, and charging of electric vehicles is performed automatically and unmanned by simply reserving charging through the charging reservation application without the driver performing a separate operation or operation. Convenience of use can be maximized according to this, and the charger of the automatic charging facility is configured to be movable in horizontal and vertical directions, and at the same time, in response to the installation location of the power receiving coil according to the vehicle model, the power supply pad is adjacent to the power receiving coil. Charging efficiency and convenience can be further improved by being configured to be placed in the position, and the horizontal arm and the power supply pad are maintained in a vertical state when lifting and lowering, but are configured to rotate in a horizontal state when the lifting and lowering is completed, thereby reducing the distance between parked vehicles. In view of the characteristics of a relatively narrow parking lot, it relates to a wireless charging system for an electric vehicle that can effectively prevent a collision with a vehicle body due to the movement of a power supply pad.

Description

Electric vehicle wireless charging system {Wireless charging system for electric vehicle}

The present invention relates to a wireless charging system for an electric vehicle, and more specifically, a power supply pad accommodating a power supply coil can move in horizontal and vertical directions, and at the same time, according to a vehicle type input from a user, the power supply pad is most closely related to the power receiving coil of the corresponding electric vehicle. By moving to an adjacent location, the user can recharge the parked electric vehicle wirelessly precisely and conveniently through automated facilities just by entering basic information (vehicle model) through the application without any additional operation by the user. It's about the charging system.

An electric vehicle is defined as a vehicle that is operated by converting electricity into mechanical power and using it as a power source. Due to its small advantages, it is attracting attention as a next-generation vehicle, and accordingly, various researches on electric vehicles are being conducted.

These electric vehicles are classified into direct current, alternating current, and alternating current vehicles according to the electricity method, and are classified into contact charging vehicles and non-contact charging vehicles according to the charging method.

In particular, contact-type charging vehicles have been widely used due to their high safety of power supply. However, since the charging plug of the charging device and the charging connector of the electric vehicle must be electrically connected in order to charge, the connection process is complicated and cumbersome, and the connection is poor. Disadvantages include frequent failures and errors.

1 is a block diagram showing an electric vehicle charging system disclosed in Korean Registered Patent No. 10-1973389 (title of invention: electric vehicle charging system) filed and registered by the present applicant.

The electric vehicle charging system (hereinafter referred to as the prior art) 100 of FIG. 1 includes a terminal 104 possessed by a vehicle driver and installed on the terminal 104 to receive input vehicle type information from a user and input vehicle type information and reservation target When the reservation data is received from the charging reservation application 105 that generates reservation data including parking surface location information and the charging reservation application 105, the charging plug identification information indicating the type of charging plug for each vehicle type and the charging port cap After searching the reference table matching the location information representing the vehicle body position (length, width, height) and extracting the charging plug identification information, location information, vehicle width and vehicle length information corresponding to the vehicle model information of the received reservation data, the extracted A management server 103 that generates vehicle-related information including charging plug identification information, location information, vehicle width and vehicle length information, an automatic charging facility 109 installed in a parking lot to charge electric vehicles, and It is installed and consists of a local server 107 that controls the operation of the automatic charging facility 109.

In addition, the local server 107 uses the location information of the charging port cap of detailed vehicle-related information transmitted from the management server 103 and the parking surface location information of the received reservation data to move horizontal coordinates, which are horizontal coordinates where charging is performed ( x, y) and the charging height (h) of the charging plug are detected and output to the automatic charging facility (109).

In addition, the automatic charging facility 109 moves the charger to the moving horizontal coordinates (x, y) transmitted from the local server 107, and then charges the charging plug according to the charging height (h) transmitted from the local server 107 Move it to the terminal to make a connection.

At this time, the automatic charging facility 109 detects the horizontal coordinate correction values (x', y') and the charging angle (θ) through the image acquired by the camera, so that a precise and accurate connection is made.

In the prior art 100 configured as described above, the user simply inputs the parking surface and parking time through the charging reservation application 105, and the automatic charging facility 109 automatically plugs and Since the connection of the charging terminal is automatically made, it has the advantage of increasing the convenience and efficiency of use.

However, in the prior art 100, since charging is performed based on the contact charging method, a charging cable having a length, a charging plug, etc. must be provided separately, so that not only the design is complicated, but also the charging process is complicated and cumbersome.

In addition, the prior art 100 has a problem in that connection failure between the charging plug and the charging terminal frequently occurs because the charging method is made of a contact type.

The present invention is to solve these problems, and the problem of the present invention is to reduce installation and operating costs by simplifying the design because the electric charging method of the charger and the electric vehicle is operated based on the non-contact method, as well as reducing the conventional Compared to the contact method, the charging process is simple and convenient, and it is to provide an electric vehicle wireless charging system that can significantly reduce charging failures and errors to increase the precision and reliability of charging service.

In addition, another problem of the present invention is to maximize the convenience of use by automatically and unmannedly charging an electric vehicle only by reserving charging through a charging reservation application without the driver performing a separate operation or operation It is to provide an electric vehicle wireless charging system.

In addition, another problem of the present invention is that the charger of the automatic charging facility is configured to be movable in horizontal and vertical directions, and at the same time, in response to the installation position of the power receiving coil according to the vehicle model of the electric vehicle, the power feeding pad is located adjacent to the power receiving coil. It is to provide an electric vehicle wireless charging system that can further improve charging efficiency and convenience by being configured to be disposed.

In addition, another problem of the present invention is that the horizontal arm and the power supply pad are maintained in a vertical state during elevation, but are configured to rotate in a horizontal state when the elevation is completed, considering the characteristics of a parking lot in which the distance between parked vehicles is relatively narrow. Accordingly, it is to provide a wireless charging system for an electric vehicle capable of effectively preventing a collision with a vehicle body due to movement of a power supply pad.

In addition, another problem of the present invention is that in the case of the second electric vehicle in which a power receiving coil is installed on the bottom surface of the vehicle body, after predicting whether or not to collide before the vertical arm descends and before the horizontal arm rotates, when predicting the collision, the charger An object of the present invention is to provide an electric vehicle wireless charging system capable of effectively preventing a collision between a power supply pad and a vehicle body in advance due to rotation of the power supply pad by being configured to correct the horizontal position.

The solution of the present invention for solving the above problems is an electric vehicle wireless charging system for providing a wireless charging service to an electric vehicle in which a power receiving coil is installed in a vehicle body, comprising: a terminal carried by a vehicle driver; A charging reservation application installed in the terminal to receive vehicle type information from a user, generate reservation data including the input vehicle type information, parking lot and parking surface location information, and transmit the generated reservation data to the outside; When the reservation data is received from the charging reservation application, the vehicle body width, height, and length information of the vehicle body for each vehicle type and the information on the installation location of the power receiving coil are matched with each other, and the vehicle body width according to the vehicle type of the received reservation data is searched. , a management server that generates vehicle-related detailed information by matching body height and body length information with information about the installation position of a power receiving coil; A moving means installed on the ceiling of a parking lot, a charger body coupled to the moving means to be movable on a plane, and a vertical arm installed to be able to ascend and descend downward on the lower surface of the charger body and configured to be extendable in the longitudinal direction A charger including a horizontal arm rotatably coupled to one side of the lower portion of the vertical arm, a power feeding coil installed therein and coupled to an end of the horizontal arm, and a camera installed on the lower end of the vertical arm. And, an automatic charging facility including a controller installed inside the charger body to perform data communication with the local server; It includes a local server installed in the parking lot to control the operation of the automatic charging facility, and when the charger body is moved, the vertical arm is in a state of being elevated while the horizontal arm rotates in a vertical state perpendicular to the ground Maintain the same state, but when the charger body is completely moved to the parking surface, the vertical arm is lowered, the horizontal arm is rotated to a horizontal state parallel to the ground, and the horizontal arm is tensioned The power supply coil is placed adjacent to the power receiving coil of the electric vehicle to be charged, and the local server utilizes and refers to the reservation data transmitted from the management server to move horizontally, which is the coordinate value of the X-Y axes of the parking surface reserved for charging. a moving horizontal coordinate detector for detecting coordinates (x, y); By utilizing the vehicle-related detailed information transmitted from the management server, with respect to the power receiving coil of the electric vehicle to be charged, the location information of the receiving coil inside the vehicle including the height information, which is the horizontal position and the vertical position on the vehicle length and vehicle width, is extracted. a power receiving coil in-vehicle position detection unit; After analyzing the image transmitted from the controller of the charger, extracting the parking surface and the vehicle object, and detecting the position of the vehicle object on the parking surface; It is not executed when the corresponding electric vehicle is the first electric vehicle (C1) in which the receiving coil is installed on the bonnet of the vehicle body, but is executed when the corresponding electric vehicle is the second electric vehicle (C2) in which the receiving coil is installed on the bottom surface of the vehicle body, When the power feed pad rotates from a vertical state to a horizontal state after the vertical arm of the charger descends using vehicle object location information input from the image analysis unit and rotation radius information of a preset power feed pad, A collision between the power feeding pad and the vehicle body is predicted, and if collision between the power feeding pad and the vehicle body is predicted, a first horizontal coordinate correction value (x1) for moving the charger body so that the rotation radius of the power feeding pad and the vehicle body are not located , a first horizontal coordinate corrector for detecting y1); The descending height of the vertical arm of the charger ( h) and, after detecting the tensile length (L) of the horizontal arm, further comprising an arm movement information detection unit for generating arm movement information in which the detected lowering height (h) and the tensile length (L) are matched, When the controller receives the horizontal movement coordinates (x, y) from the local server, the controller controls the charger to move according to the received horizontal movement coordinates (x, y), and the charger moves to the horizontal movement coordinates (x, y). When moving, the image obtained by driving the camera is transmitted to the local server, and when the first horizontal coordinate correction value (x1, y1) is received from the local server, the received first horizontal coordinate correction value (x1, y1 ) to control the charger to move, and when arm movement information is received from the local server, the vertical arm is lowered according to the received lowering height (h), and then the horizontal arm is rotated in a horizontal state, The horizontal arm is controlled to be stretched according to the received tensile length (L).

In addition, in the present invention, the automatic charging facility further includes a distance sensor (S) installed on one side facing the ground when the horizontal arm of the charger is in a horizontal state, and the controller determines that the charging target is the second electric vehicle (C2) At the same time, after the vertical arm descends, when the horizontal arm rotates from a vertical state to a horizontal state, the distance sensor S is driven, and the distance value information detected by the distance sensor S transmitted to the local server, and the local server is executed when the second electric vehicle C2 is to be charged. a collision determination unit that secondarily determines whether a pad collides with a vehicle body; The second horizontal coordinate correction value (x2, y2 ) It is preferable to further include a second horizontal coordinate corrector for detecting.

In addition, in the present invention, the moving means includes a roller unit for winding and withdrawing the power cable; Doedoe installed in the ceiling structure of the parking lot in the X-axis direction, the first guide rails installed spaced apart in the Y-axis direction; Second guide rails installed in the Y-axis direction on the ceiling structure of the parking lot and spaced apart from each other in the X-axis direction; a first movable body coupled with the first guide rail to be movable along the first guide rail in the X-axis direction and moving the power cable from the roller unit in the X-axis direction; A second movable body coupled with the second guide rail to be movable in the Y-axis direction along the second guide rail and moving the power cable from the roller unit in the Y-axis direction; It is preferable to be coupled to the lower part of the moving body.

In the present invention, it is preferable that the power receiving coil interlocks with the power supply coil to store induced electromotive force generated by using an electromagnetic induction method or a magnetic resonance method in a vehicle battery.

In the present invention, when the management server receives a payment request from the user through the charging reservation application, it is preferable to process the payment of the charging cost according to the amount of power charged in the electric vehicle using the payment method selected by the user. .

Also, in the present invention, the first guide rails and the second guide rails are preferably formed along the line of the parking surface.

According to the present invention having the above problems and solutions, the electric charging method of the charger and the electric vehicle is operated based on a non-contact method, so that the design is simple and the installation and operating costs can be reduced, as well as charging compared to the conventional contact method. The process is simple and convenient, and the accuracy and reliability of the charging service can be increased by significantly reducing charging failures and errors.

In addition, according to the present invention, the convenience of use can be maximized as the electric vehicle is automatically and unmannedly charged only by reserving the charging through the charging reservation application without the driver performing a separate operation or operation.

In addition, according to the present invention, the charger of the automatic charging facility is configured to be movable in horizontal and vertical directions, and at the same time, the power supply pad is configured to be disposed adjacent to the power receiving coil in response to the installation position of the power receiving coil according to the vehicle type of the electric vehicle. Charging efficiency and convenience can be further improved.

In addition, according to the present invention, the horizontal arm and the power supply pad are maintained in a vertical state during elevation, but are configured to rotate in a horizontal state when the elevation is completed, in view of the characteristics of a parking lot where the distance between parked vehicles is relatively narrow, the power supply pad It is possible to effectively prevent a collision with a vehicle body due to the movement of the vehicle body.

In addition, according to the present invention, in the case of the second electric vehicle in which a power receiving coil is installed on the bottom surface of the vehicle body, after predicting whether or not to collide before the vertical arm descends and before the horizontal arm rotates, the horizontal position of the charger is determined at the time of predicting the collision. By being configured to compensate, it is possible to effectively prevent a collision between the power supply pad and the vehicle body due to rotation of the power supply pad in advance.

1 is a relationship diagram for explaining the operation process of an electric vehicle charging system disclosed in Korean Registered Patent No. 10-1973389 (title of invention: electric vehicle charging system) filed and registered by the present applicant.
2 is a configuration diagram showing a wireless charging system for an electric vehicle according to an embodiment of the present invention.
FIG. 3 (a) of FIG. 2 is an exemplary diagram illustrating a case in which a power receiving coil of an electric vehicle is installed on the bottom surface of a vehicle body, and (b) is an exemplary diagram illustrating a case in which a power receiving coil of an electric vehicle is installed in a bonnet of a vehicle body. .
4 is a block diagram showing the charging reservation application of FIG. 2 .
FIG. 5 is a block diagram illustrating a local server of FIG. 2 .
6 is an exemplary view showing an image obtained by photographing the charger of the present invention.
7 (a) is an exemplary diagram illustrating a case in which the collision between the power supply pad and the car body does not occur when the power supply pad of the charger rotates, and (b) is an exemplary view showing when the power supply pad and the vehicle body collide when the power supply pad of the charger rotates. This is an example of the timing.
8 is a configuration diagram showing an embodiment of the automatic charging facility of FIG. 2 .
9 is a plan view for explaining the automatic charging facility of FIG. 8 .
10 is a side view for explaining the charger of FIG. 8 .
11 is an exemplary diagram illustrating an operation process of a charger when a charging target is a first electric vehicle.
12 is an exemplary diagram illustrating an operation process of a charger when a charging target is a second electric vehicle.
13 is a side view showing a second charger as a second embodiment of the charger of the present invention.
14 is a perspective view illustrating a brush unit of FIG. 13;
Fig. 15 is a side view of Fig. 14;
FIG. 16 is a block diagram illustrating a second local server that manages and controls the second charger of FIG. 13 .

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

2 is a configuration diagram showing a wireless charging system for an electric vehicle according to an embodiment of the present invention.

An embodiment of the present invention, the electric vehicle wireless charging system (1) provides a charging service based on wireless charging, which is a non-contact charging method, and at the same time, the user inputs basic information (vehicle model) through a charging reservation application (5). As it is configured to automatically charge the electric vehicle, the design is simple compared to the contact charging method, which can reduce installation and operating costs. This is to prevent charging failures and errors, thereby significantly increasing the reliability of electric vehicle charging services, and improving the convenience and efficiency of use.

In addition, as shown in FIG. 2, the electric vehicle wireless charging system 1 is installed in the smartphone 4, which is a portable terminal owned by the vehicle driver, and the smartphone 4 to provide a charging reservation service to the driver. The charging reservation application (5), which is an application provided, and the automatic charging facility (9), which is installed in the parking lot and supplies power to the charging target (C) reserved for parking in a wireless charging method, and installed in each parking lot, automatically A local server 7 that manages and controls the operation of the charging facility 9, a management server 3 that manages and controls the charging reservation application 5 and the local server 7, a smart phone 4, a local It consists of a communication network 10 providing a data movement path between the server 7 and the management server 3.

In addition, the automatic charging facility 9 includes a power supply pad 94 in which a power supply coil is accommodated, and when the power supply coil of the power supply pad 94 is adjacent to the power receiving coil 8 of the electric vehicle C, the electromagnetic Induction electromotive force is generated in the power receiving coil 8 using an induction method or magnetic resonance method, and the power receiving coil 8 stores the induced electromotive force generated due to interlocking with the power supply coil of the power feeding pad 94 in the vehicle battery. The battery of the electric vehicle is charged.

At this time, the automatic charging facility 9 refers to a facility system that performs operations necessary for using a parking lot, such as control of vehicle entry and exit of the corresponding parking lot, parking surface guidance, and parking fee settlement and payment, and such an automatic charging facility 9 It will be described in detail with reference to FIGS. 8 to 12 to be described later.

The communication network 10 provides a data movement path between the smart phone 4, the local server 7 and the management server 3, and in detail, a wide area network (WAN), wired and wireless network (Network) network, mobile communication network , LTE, and the like.

FIG. 3 (a) of FIG. 2 is an exemplary diagram illustrating a case in which a power receiving coil of an electric vehicle is installed on the bottom surface of a vehicle body, and (b) is an exemplary diagram illustrating a case in which a power receiving coil of an electric vehicle is installed in a bonnet of a vehicle body. .

In general, charging methods of electric vehicles (C) are classified into contact and non-contact types, and recently, studies on methods that can be used by combining both contact and non-contact types are actively increasing.

Inside the non-contact electric vehicle C, a power receiving coil 8 for receiving power in conjunction with the power feeding coil of the power feeding pad 94 of the charger must be installed, and usually the power receiving coil 8 is As shown in (a) of FIG. 3, it is installed on the bonnet of the body of the electric vehicle (C), or is installed on the bottom surface of the electric vehicle (C) as shown in (b) of FIG. 3.

At this time, in FIG. 3, for convenience of explanation, it has been described that the power receiving coil 8 is installed on the bottom surface of the vehicle body or the bonnet of the electric vehicle C as an example, but the installation position of the power receiving coil 8 is not limited thereto. , it is natural that it can be installed in various positions of the vehicle body.

Hereinafter, in the present invention, the electric vehicle in which the power receiving coil 8 is installed on the body bonnet of the electric vehicle C is referred to as a first electric vehicle C1, and the power receiving coil 8 is installed on the bottom of the electric vehicle C. The electric vehicle installed on the side will be referred to as the second electric vehicle C2.

4 is a block diagram showing the charging reservation application of FIG. 2 .

As shown in FIG. 4, the charging reservation application 5 includes a control unit 50, a data input/output unit 51, an interface processing unit 52, a data storage unit 53, a reservation mode management unit 55, and a payment mode. It consists of a management unit (57).

The control unit 50 is an O.S (Operating System) of the charging reservation application 5, and manages and controls the control targets 51, 52, 53, 55, and 57.

In addition, the control unit 50, through a selection interface that is a graphic user interface (GUI, Graphic User Interface) or a graphic user experience (GUX, Graphic User Experience) initially provided by the interface processing unit 52, 1) a reservation mode from the user When is selected, the reservation mode management unit 55 is driven, and 2) when payment is requested from the user, the payment mode management unit 57 is driven.

The data input/output unit 51 inputs/outputs the smart phone 4 and data.

The interface processing unit 52 displays pre-manufactured GUIs (or GUXs) on the monitor 41 of the smart phone 4 and at the same time provides calculated result data according to a user's request (command).

In addition, the interface processing unit 52 receives a selection whether to proceed with a reservation service or a payment service from the user when the charging reservation application 5 is initially driven.

At this time, the interface processing unit 52 runs the reservation mode management unit 55 when 1) a reservation service request is received from the user, and 2) the payment mode management unit 57 is operated when a payment service progress request is received.

That is, when the user first drives the charging reservation application 5, the smartphone 4 selects a reservation mode or a payment mode through the selection interface 610 displayed on the display, so that the service can be provided accordingly.

The data storage unit 53 stores data in the memory 41 of the smart phone 4 .

The reservation mode management unit 55 receives a reservation time, information on a parking lot to be provided with a charging service, information on a parking surface where the corresponding electric vehicle is to be parked, vehicle type information of the corresponding electric vehicle, and charging amount information from the user.

In addition, when the reservation time information, parking lot information, parking surface information, vehicle type information, and charging amount information input from the user are input, the reservation mode management unit 55 generates reservation data by matching them, and then transfers the generated reservation data to the management server ( 3) sent to

At this time, the reservation data generated by the reservation data generation module 553 must necessarily include vehicle type information, which is different from the installation position of the faucet coil 8 according to the vehicle type as described above, so the management server 3 It is possible to accurately recognize the installation position of the power receiving coil 8 of the electric vehicle for which charging is reserved according to the vehicle model information of the reservation data transmitted from .

The reservation data transmission module 55 transmits the reservation data generated by the reservation data generation module 55 to the management server 3 by controlling the communication interface module 43 of the smart phone 4.

The payment mode management unit 57 is driven when a payment request is received from a user through the selection interface 610 and provides a payment service according to the amount of charged power.

At this time, as the payment method, known payment methods such as cards, micropayments, account transfers, etc. may be applied, and since these payment methods are commonly used technologies in mobile payment services, detailed descriptions thereof will be omitted.

The management server 3 includes a DB server, and in the DB server, the location and identification information of each local server 7 and the parking surface identification and location information of each parking lot are preset and stored.

In addition, the DB server stores a reference table in which vehicle body width, vehicle body height, and body length information for each vehicle type is matched with information on the installation location of power receiving coils.

In addition, when the management server 3 receives reservation data from the charging reservation application 5, after extracting vehicle model information from the input reservation data, it searches the reference table stored in the DB server to determine the vehicle body width and vehicle body according to the extracted vehicle model. It extracts height and body length information and faucet coil installation location information, and generates vehicle-related detailed information including the extracted vehicle body width, body height and body length information of the vehicle type, and faucet coil installation location information. .

In addition, the management server 3 transmits the generated vehicle-related detailed information to the local server 7 of the corresponding parking lot.

In addition, the management server 3 interlocks with the payment mode management unit 57 of the charging reservation application 5 to process payment according to the payment method selected by the user.

5 is a block diagram illustrating a local server of FIG. 2 .

The local server 7 is a computer, controller or server that is installed in each parking lot and manages and controls the automatic charging facility 9 installed in the corresponding parking lot.

In addition, as shown in FIG. 5, the local server 7 includes a control unit 70, a memory 71, a communication interface unit 72, a moving horizontal coordinate detection unit 73, and a power receiving coil in-vehicle location extraction unit 74. , charger movement information detection unit 75, charger movement control unit 76, image analysis unit 77, first horizontal coordinate correction unit 78, arm movement information detection unit 77, collision determination unit 78, It consists of 2 horizontal coordinate correction unit 79 and payment request unit 80.

At this time, although not specifically shown in the present invention for convenience of description, matching between a reserved vehicle and an actual electric vehicle through a recommendation management application can be made based on the license plate number, and these matching methods and technologies are related to parking applications and systems. Since it is a technique commonly used in , a detailed description thereof will be omitted.

The control unit 70 is the O, S (Operating System) of the local server 7, and the control target 71, (72), (73), (74), (75), (76), (77), It manages and controls (78), (79), and (80).

In addition, when the control unit 70 receives reservation data and vehicle-related detailed information from the management server 3 through the communication interface unit 72, the input reservation data and vehicle-related detailed information are moved to the horizontal coordinate detector 73 and the power faucet. Input to coil in-vehicle position detection unit 74.

In addition, the control unit 70 1) when the corresponding electric vehicle is the first electric vehicle C1 in which the power receiving coil is installed on the bonnet of the vehicle body, the first horizontal coordinate correction unit 76, the collision detection unit 77, the second The horizontal coordinate correction unit 78 is not executed, but 2) when the corresponding electric vehicle is the second electric vehicle C2 whose power receiving coil is installed on the bottom of the vehicle body, the first horizontal coordinate correction unit 76 determines whether or not there is a collision unit 77 and the second horizontal coordinate correction unit 78 are executed.

The reason for this is that in the case of the first electric vehicle C1 in which the power receiving coil is installed on the bonnet, the power supply coil is moved to be located on the top of the bonnet and there is less risk of contact with the vehicle body, but the power receiving coil is installed on the bottom of the vehicle body. In the case of the second electric vehicle C2, since the power supply coil is moved to be located on the bottom surface of the vehicle body and there is a high risk of contact with the vehicle body, the first horizontal coordinate correction unit 76, the collision determination unit 78 and the second horizontal coordinate A collision between the power supply pad of the charger and the vehicle body was prevented by using the coordinate correction unit 79.

Data is stored in the memory 71 .

The communication interface unit 72 connects to the communication network 10 and transmits and receives data to and from the management server 3 .

The moving horizontal coordinate detector 73 utilizes and refers to the reservation data transmitted from the management server 3 and detects the moving horizontal coordinate (x, y), which is the coordinate value of the X-Y axis of the parking surface reserved for charging.

That is, the moving horizontal coordinate detection unit 73 detects the moving horizontal coordinates (x, y), which is the position where the charger equipped with the power feeding pad 94 will move, and the control unit 70 detects the moving horizontal coordinates detected by the moving horizontal coordinate detection unit 73. The moving horizontal coordinates (x, y) are transmitted to the controller 97 of the charger 93 of FIG. 10 to be described later, and the charger 93 moves to the corresponding moving horizontal coordinates (x, y).

At this time, as shown in FIGS. 9 and 10 described later, the charger 93 is installed to be movable on a plane (X-Y axis) on the ground or ceiling structure of the parking lot.

The faucet coil in-vehicle location detection unit 74 utilizes and refers to the reservation data and vehicle-related detailed information transmitted from the management server 3 to extract the in-vehicle installation location of the faucet coil of the electric vehicle to be charged.

At this time, the vehicle-related detailed information includes vehicle body width, body height, and body length information according to the vehicle type of the vehicle for which charging is reserved, and information on the installation location of the faucet coil, and the installation location of the faucet coil is the vehicle length and It includes a plane position on the vehicle width and height information, which is a vertical position.

On the other hand, when the charger 93 is moved to the moving horizontal coordinates (x, y) transmitted from the local server 7, the camera is driven to obtain an image of the parking surface from the top, and then the obtained image is transmitted to the local server 7, and the controller 70 inputs the image received from the controller 97 of the charger 93 to the image analyzer 75.

The image analysis unit 75 receives the image transmitted from the controller 97 of the charger 93, analyzes the input image, extracts the parking surface and the vehicle object, and then detects the position of the vehicle object on the parking surface. .

At this time, when the charging target is the first electric vehicle C1, the vehicle object location information detected by the image analysis unit 75 is input to the arm movement information detector 77, and the charging target is the second electric vehicle C2. In this case, the vehicle object location information detected by the image analysis unit 75 is input to the first horizontal coordinate correction unit 76 .

6 is an exemplary view showing an image obtained by photographing the charger of the present invention, and FIG. 7 (a) is an exemplary view showing a case in which a collision between the power supply pad and the vehicle body is not made when the power supply pad of the charger is rotated. , (b) is an exemplary view showing a collision between the power supply pad and the vehicle body when the power supply pad of the charger rotates.

In the charger 93 of the present invention, when the charging target is the second electric vehicle C, as shown in FIG. After the vertical arm descends to one side, and then the power supply pad 94 rotates from a vertical state to a horizontal state, the horizontal arm is tensioned and the power receiving coil 8 located on the bottom surface of the second electric vehicle C2 is directly displaced. A power supply pad 94 is located at the bottom.

At this time, when the power supply pad 94 of the charger 93 rotates from a vertical state to a horizontal state, as shown in FIG. 7(a), the vehicle body of the second electric vehicle C2 within the rotation radius of the power supply pad 94 When is not located, the collision between the power supply pad 94 and the vehicle body does not occur, but the vehicle body of the second electric vehicle C2 is located within the rotation radius of the power supply pad 94 as shown in FIG. In this case, a collision occurs between the power supply pad 94 and the vehicle body.

That is, the first horizontal coordinate correction unit 76 of the present invention is to predict in advance the collision between the power supply pad 94 and the vehicle body due to the rotation of the power supply pad 94, and the charging target is the second electric vehicle ( C2) is executed, and vehicle object location information is received from the image analysis unit 75.

In addition, the first horizontal coordinate correction unit 76 utilizes the input vehicle object location information, the power reception coil inside vehicle location information detected by the power reception coil location detection unit 74, and the preset power supply pad rotation radius information, After the vertical arm 937 of the charger 93 descends in this state, when the power supply pad 94 rotates from a vertical state to a horizontal state, a collision between the power supply pad 94 and the vehicle body is predicted.

For example, the first horizontal coordinate corrector 76 calculates the distance from the outer end of the power supply pad 94 to the nearest vehicle body, and determines whether the calculated distance to the vehicle body is within a preset turning radius. collisions can be predicted.

In addition, the first horizontal coordinate correction unit 76 1) does not perform a separate operation if the collision between the power supply pad 94 and the vehicle body is not predicted, but 2) if the collision between the power supply pad 94 and the vehicle body is predicted Then, the charger is moved in a direction away from the vehicle body, and the first horizontal coordinate correction values (x1, y1) are detected so that the vehicle body is not located in the rotation radius of the power supply pad 94.

At this time, the control unit 70 transmits the first horizontal coordinate correction values (x1, y1) detected by the first horizontal coordinate correction unit 76 to the controller 97 of the charger 93, and the controller of the charger 93 In (97), after adjusting the position of the charger 93 according to the first horizontal coordinate correction values (x1, y1) transmitted from the local server 7, the camera is driven again to transfer the captured image to the local server 7 send to

The arm movement information detecting unit 77 receives the vehicle object position information input from the image analysis unit 75, the power receiving coil in-vehicle position information detected by the power receiving coil in-vehicle position detecting unit 74, and the preset power supply pad rotation radius information. After detecting the descending height (h) of the vertical arm 937 of the charger 93 and the tensile length (L) of the horizontal arm 938, the detected descending height (h) and Arm movement information in which the tensile length (L) is matched is generated.

At this time, the control unit 70 transmits the arm movement information generated by the arm movement information detection unit 77 to the controller 97 of the charger 93.

Meanwhile, the controller 97 1) descends the vertical arm 937 according to the descending height h of the arm movement information transmitted from the local server 7 when the charging target is the first electric vehicle C1. After rotating the power supply pad 94 from a vertical state to a horizontal state, the horizontal arm 937 is stretched according to the tensile length L of the received arm movement information, so that the power supply pad 94 becomes the power receiving coil 8 2) When the charging target is the second electric vehicle (C2), the vertical arm (937) is moved according to the descending height (h) of the arm movement information transmitted from the local server (7). After descending, and before rotating the power supply pad 94, the distance sensor S is driven to transmit the distance value information measured by the distance sensor S to the local server 7.

The collision determination unit 78 utilizes the distance value information transmitted from the controller 97 of the charger 93 and the rotation radius information of the preset power supply pad 94 to determine whether or not the power supply pad 94 collided with the vehicle body. secondarily predicts

The second horizontal coordinate correction unit 79 1) if a collision between the power supply pad 94 and the vehicle body is not predicted, it does not perform a separate operation, but 2) if a collision between the power supply pad 94 and the vehicle body is predicted , The second horizontal coordinate correction values (x2, y2) are detected so that the charger is moved in a direction away from the vehicle body so that the vehicle body is not located in the rotation radius of the power supply pad 94.

At this time, the controller 70 transmits the second horizontal coordinate correction values (x2, y2) detected by the second horizontal coordinate correction unit 79 to the controller 97 of the charger 93, and the controller of the charger 93 (97) adjusts the position of the charger 93 according to the second horizontal coordinate correction values (x2, y2) transmitted from the local server 7, and then drives the distance sensor S again to obtain the detected distance value information to the local server (7).

Upon receiving the charge completion data from the charger 93, the payment request unit 80 requests payment according to the charge completion to the management server 3. At this time, the management server 3 calculates the charging fee in connection with the corresponding charging reservation application 5 according to the payment request from the local server 7 .

8 is a configuration diagram showing an embodiment of the automatic charging facility of FIG. 2, FIG. 9 is a plan view for explaining the automatic charging facility of FIG. 8, and FIG. 10 is a side view for explaining the charger of FIG. 11 is an exemplary view illustrating an operating process of the charger when the charging target is a first electric vehicle, and FIG. 12 is an exemplary diagram illustrating an operating process of the charger when the charging target is a second electric vehicle.

As shown in FIGS. 8 to 12, the automatic charging facility 9 includes a first guide rail 91 installed long in the X-axis direction on the ceiling structure and spaced apart in the Y-axis direction, and the Y-axis direction on the ceiling structure. A second guide rail 92 installed long but spaced apart in the X-axis direction and installed to cross the first guide rail 91, and a roller unit 93 installed on one side of the ceiling structure to wind the power cable And, it consists of a charger 93 installed to be movable on the first and second guide rails 91 and 92.

At this time, it is preferable that the first and second guide rails 91 and 92 are formed along the line directly above the line of each parking surface 400 .

The roller unit 95 is a roller that winds or draws the power cable. At this time, since the end of the power cable is connected to the charger 93, the roller unit 95 moves along the first and second guide rails 91 and 92 according to the moving direction and distance of the charger 93. It is configured to wind or withdraw.

As shown in FIG. 8, the charger 93 includes a first moving body 931, a second moving body 932, a charger body 933, a first motor 934, a second motor 935, and a vertical arm. 937, a horizontal arm 938, a camera 939, and a distance sensor (S).

The first movable body 931 is coupled to the first guide rail 91 so as to be movable in the X-axis direction along the first guide rail 91 .

At this time, a first motor 934 is coupled between the first movable body 931 and the first guide rail 91, so that the first movable body 931 is the first guide in the X-axis direction by the rotation of the first motor 934. It is possible to move horizontally along the rail 91 .

The second movable body 932 is installed below the first movable body 931 and coupled to the second guide rail 92 so as to be movable in the Y-axis direction along the second guide rail 92 .

At this time, a second motor 935 is coupled between the second movable body 932 and the second guide rail 92, so that the second movable body 932 is guided in the Y-axis direction by the rotation of the second motor 935. It is possible to move horizontally along the rail 92 .

The charger body 933 is coupled to the lower part of the second movable body 932, and a power cable is inserted therein.

In addition, a controller 97 is installed inside the charger body 933 to control driving and operation of the charger 93 and transmit/receive data to and from the local server 7.

The vertical arm 937 is installed on the lower surface of the charger body 933 so as to be able to move up and down and rotate at the same time.

In addition, a horizontal arm 938 is rotatably coupled to one lower side of the vertical arm 937 .

In addition, a camera 939 is installed on the lower surface of the vertical arm 937 so as to photograph directly below.

The camera 939 is installed on the lower surface of the vertical arm 937 and acquires an image by photographing an electric vehicle parked directly below, in detail, on the lower parking surface.

At this time, the controller 97 transmits the image acquired by the camera 939 to the local server 7.

That is, when the charger 93 moves to the horizontal movement coordinate value, the camera 939 acquires an image by photographing the corresponding parking surface 400 from the upper part, and the local server 7, as described above, the controller 97 ) by analyzing the image transmitted from 1) when the charging target is the first electric vehicle (C1), arm movement information is detected, 2) when the charging target is the second electric vehicle (C2), the first horizontal coordinate is corrected When the value (x1, y1) or arm movement information is detected and the charger 93 receives the first horizontal coordinate correction value (x1, y1) from the local server 7, the position of the charger 93 is inputted 1 Correct according to the horizontal coordinate correction value (x1, y1), but when arm movement information is received from the local server 7, the vertical arm 937 and the horizontal arm 938 are lowered and tensioned according to the received arm movement information let it

The horizontal arm 937 is hinged to one lower side of the vertical arm 937 and is configured to be rotatable in a horizontal or vertical state.

In addition, the horizontal arm 938 is configured to extend and contract in a horizontal direction at one lower side of the vertical arm 937 .

That is, when the horizontal arm 938 rotates vertically with respect to the ground, it is disposed parallel to the vertical arm 937, but when it rotates horizontally, it is disposed parallel to the ground.

In addition, the power supply coil 94 is chucked (gripped) at the end of the horizontal arm 938.

In addition, when the horizontal arm 938 is rotated in a vertical state, a distance sensor S is installed on the outer circumferential surface in the direction toward the vehicle. At this time, the distance sensor (S) faces the ground when the horizontal arm (938) is rotated in a horizontal state, and the detection signal measured by the distance sensor (S) is transmitted to the local server (7) by the controller (97) do.

That is, in the charger 93, 1) when the charging target is the first electric vehicle (an electric vehicle in which the receiving coil is located on the bonnet), the distance sensor S does not separately operate, but 2) the charging target is the second electric vehicle ( When the power receiving coil is an electric vehicle installed on the bottom of the vehicle body), after the vertical arm 937 moves downward, the distance sensor S operates to measure the distance to the vehicle body, and then the controller 97 measures the distance to the vehicle body. The distance value (d) is transmitted to the local server (7), and the local server (7) compares the distance value (d) information transmitted from the controller (97) with the rotation radius of the preset power supply coil and uses it to supply power. When the pad 94 rotates from a vertical state to a horizontal state, whether or not a collision between the power supply pad 94 and the vehicle body is determined, and if a collision between the power supply pad 94 and the vehicle body is predicted, the second horizontal coordinate correction accordingly. After detecting the value (x2, y2), the charger 93 is moved in position according to the second horizontal coordinate correction value (x2, y2) transmitted from the local server (7).

13 is a side view showing a second charger that is a second embodiment of the charger of the present invention, FIG. 14 is a perspective view showing a brush unit of FIG. 13, and FIG. 15 is a side view of FIG.

13 is a second charger 20 that is a second embodiment of the charger of the present invention, and the second charger 20, as shown in FIG. 13, has the same shape and configuration as the above-described FIG. ), a second moving body 932, a first motor 934, and a second motor 935.

In addition, the second charger 20 includes a second charger body 23, a second vertical arm 237, a hinge coupling part H, a support plate 236, a second horizontal arm 238, and a third horizontal arm ( 238'), a power supply pad 24, a brush unit 25, a camera 239, and a distance sensor S.

The second vertical arm 237 is installed at the lower part of the second charger body 23 to be able to move up and down.

In addition, the support plate 236 is rotatably coupled to the lower portion of the second vertical arm 237 by the hinge coupling part H.

In addition, a camera 239 is installed on the lower surface of the second vertical arm 237 .

The support plate 236 is formed of a plate material having a predetermined area, and one side is coupled to the hinge coupling portion H so that the other side faces upward or forward as the hinge coupling portion H rotates.

At this time, the state in which the other surface of the support plate 236 faces upward is referred to as a 'vertical' rotation state, and the state in which the other surface of the support plate 236 faces forward is referred to as a 'horizontal' rotation state.

In addition, the second horizontal arm 238 and the third horizontal arm 238′ are installed on the other surface of the support plate 236 so as to be extendable and contractible from the support plate 236, respectively. At this time, the second horizontal arm 238 and the third horizontal arm 238' are arranged such that the third horizontal arm 238' is disposed above the second horizontal arm 238 when the support plate 236 is in a horizontally rotated state. installed at a distance.

In addition, the power supply coil 24 is coupled to the end of the second horizontal arm 238 as described above, and the brush unit 25 of FIG. 2 to be described later is coupled to the end of the third horizontal arm 238′.

The brush unit 25 includes brushes 251 capable of extending and contracting toward the outside while being rotatable.

The brush unit 25 does not perform a separate operation when 1) the parked electric vehicle is the first electric vehicle (C1, a vehicle in which a power receiving coil is installed on the body bonnet), but 2) the parked electric vehicle 2 Operates when it is an electric vehicle (C2, a vehicle in which a power receiving coil is installed on the bottom surface of the vehicle body), and moves to a position adjacent to the bottom surface of the vehicle body adjacent to the power receiving coil (8) according to the tension of the third horizontal arm (238') After that, the brushes 251 are rotated in the adjacent ascending state to clean the foreign matter on the bottom surface of the vehicle body.

In addition, when cleaning is completed by the brush unit 25, the third horizontal arm 238' of the brush unit 25 is reduced again and returned to its original position, and when the position of the brush unit 25 is restored, the above-mentioned As described above, the second horizontal arm 238 is stretched so that the power supply pad 24 and the power receiving coil 8 interlock to be charged with power.

FIG. 16 is a block diagram illustrating a second local server that manages and controls the second charger of FIG. 13 .

The second local server 27 of FIG. 16 includes a control unit 70, a memory 71, a communication interface unit 72, a moving horizontal coordinate detection unit 73, and a power receiving coil that perform the same configuration and operation as those of FIG. 5. Position extraction unit 74, charger movement information detection unit 75, charger movement control unit 76, image analysis unit 77, first horizontal coordinate correction unit 78, arm movement information detection unit 77, collision determination It includes a unit 78, a second horizontal coordinate correction unit 79, and a payment request unit 80.

In addition, the second local server 27 further includes a brush management unit 281 .

The brush unit management unit 281 is executed when the corresponding electric vehicle is the second electric vehicle.

In addition, the brush unit management unit 281 tensions the third horizontal arm 238' before the second horizontal arm 238 is stretched so that the brush unit 25 is adjacent to the bottom surface of the vehicle body where the power receiving coil 8 is located. to move into position.

In addition, when the brush unit 25 is located on the vehicle body directly below the power receiving coil 8, the brush unit management unit 281 moves the brush unit 25 up and down, and then rotates the brush unit 25 to clean the bottom surface of the vehicle body. Remove foreign matter.

Also, when the rotation of the brush unit 25 is completed, the brush unit management unit 281 reduces the third horizontal arm 238' to return to its original position.

At this time, when the rotation of the brush unit 25 is completed by the brush unit management unit 281, the control unit 70 controls the components so that the power supply coil 24 moves to the power receiving coil 8 as described above.

As described above, in the electric vehicle wireless charging system 1, which is an embodiment of the present invention, the charger 93 and the electric vehicle charging method are operated based on a non-contact method, so that the design is simple and installation and operating costs can be reduced. In addition, compared to the conventional contact method, the charging process is simple and convenient, and the accuracy and reliability of the charging service can be increased by significantly reducing charging failures and errors.

In addition, the electric vehicle wireless charging system 1 of the present invention is easy to use as the electric vehicle is automatically and unmannedly charged by simply reserving charging through a charging reservation application without the driver performing a separate operation or operation. can be maximized.

In addition, in the electric vehicle wireless charging system 1 of the present invention, the charger of the automatic charging facility is configured to be movable in horizontal and vertical directions, and at the same time, the power supply pad corresponds to the installation position of the power receiving coil according to the vehicle type of the electric vehicle. By being configured to be disposed adjacent to the charging efficiency and convenience can be further improved.

In addition, the electric vehicle wireless charging system 1 of the present invention maintains the horizontal arm and the power supply pad in a vertical state when lifting and lowering, but is configured to rotate in a horizontal state when the lifting and lowering is completed, so that the distance between parked vehicles is relatively narrow. Considering the characteristics of the power supply pad, it is possible to effectively prevent a collision with a vehicle body due to movement of the power supply pad.

In addition, in the case of the second electric vehicle in which a power receiving coil is installed on the bottom surface of the vehicle body, the electric vehicle wireless charging system 1 of the present invention predicts collision before the vertical arm descends and the horizontal arm rotates, and then predicts the collision. When the charger is configured to correct the horizontal position of the charger, collision between the power supply pad and the vehicle body due to rotation of the power supply pad can be effectively prevented in advance.

1: Electric vehicle wireless charging system 3: Management server
4: Smartphone 5: Charging reservation application
7: local server 8: power supply coil
9: automatic charging facility 10: communication network
50: control unit 51: data input and output unit
52: interface processing unit 53: data storage unit
55: reservation mode management unit 57: payment mode management unit
70: control unit 71: memory
72: communication interface unit 73: moving horizontal coordinate detection unit
74: Power coil in-vehicle position detection unit 75: Image analysis unit
76: first horizontal coordinate correction unit 77: arm movement information detection unit
78: collision determination unit 79: second horizontal coordinate correction unit
80: payment request unit 91: first guide rail
92: second guide rail 93: charger
94: power supply pad 95: roller unit
97: controller 931: first moving body
932: second moving body 933: charger body
934: first motor 935: second motor
937: vertical arm 938: horizontal arm
939: camera S: distance sensor

Claims (6)

In an electric vehicle wireless charging system for providing a wireless charging service to an electric vehicle having a faucet coil installed in a vehicle body:
a terminal possessed by a vehicle driver;
A charging reservation application installed in the terminal to receive vehicle type information from a user, generate reservation data including the input vehicle type information, parking lot and parking surface location information, and transmit the generated reservation data to the outside;
When the reservation data is received from the charging reservation application, the vehicle body width, height, and length information of the vehicle body for each vehicle type and the information on the installation location of the power receiving coil are matched with each other, and the vehicle body width according to the vehicle type of the received reservation data is searched. , a management server that generates vehicle-related detailed information by matching body height and body length information with information about the installation position of a power receiving coil;
A moving means installed on the ceiling of a parking lot, a charger body coupled to the moving means to be movable on a plane, and a vertical arm installed to be able to ascend and descend downward on the lower surface of the charger body and configured to be extendable in the longitudinal direction A charger including a horizontal arm rotatably coupled to one side of the lower portion of the vertical arm, a power feeding coil installed therein and coupled to an end of the horizontal arm, and a camera installed on the lower end of the vertical arm. And, an automatic charging facility including a controller installed inside the charger body to perform data communication with the local server;
A local server installed in the parking lot to control the operation of the automatic charging facility;
The charger
When the charger body is moved, the vertical arm remains elevated while the horizontal arm rotates in a vertical state perpendicular to the ground, but when the charger body moves to the corresponding parking surface, the vertical arm After descending, the horizontal arm is rotated to a horizontal state parallel to the ground, and then the horizontal arm is tensioned so that the power supply coil is disposed adjacent to the power receiving coil of the electric vehicle to be charged,
the local server
A moving horizontal coordinate detector for detecting moving horizontal coordinates (x, y), which are coordinate values of the XY axes of a parking surface reserved for charging, by utilizing and referring to the reservation data transmitted from the management server;
By utilizing the vehicle-related detailed information transmitted from the management server, with respect to the power receiving coil of the electric vehicle to be charged, the location information of the receiving coil inside the vehicle including the height information, which is the horizontal position and the vertical position on the vehicle length and vehicle width, is extracted. a power receiving coil in-vehicle position detection unit;
After analyzing the image transmitted from the controller of the charger, extracting the parking surface and the vehicle object, and detecting the position of the vehicle object on the parking surface;
It is not executed when the corresponding electric vehicle is the first electric vehicle (C1) in which the receiving coil is installed on the bonnet of the vehicle body, but is executed when the corresponding electric vehicle is the second electric vehicle (C2) in which the receiving coil is installed on the bottom surface of the vehicle body, When the power feed pad rotates from a vertical state to a horizontal state after the vertical arm of the charger descends using vehicle object location information input from the image analysis unit and rotation radius information of a preset power feed pad, A collision between the power feeding pad and the vehicle body is predicted, and if collision between the power feeding pad and the vehicle body is predicted, a first horizontal coordinate correction value (x1) for moving the charger body so that the rotation radius of the power feeding pad and the vehicle body are not located , a first horizontal coordinate corrector for detecting y1);
The descending height of the vertical arm of the charger ( h) and, after detecting the tensile length (L) of the horizontal arm, further comprising an arm movement information detector for generating arm movement information in which the detected lowering height (h) and the tensile length (L) are matched,
The controller
When the horizontal movement coordinates (x, y) are received from the local server, the charger is controlled to move according to the received horizontal movement coordinates (x, y), and when the charger moves to the horizontal movement coordinates (x, y) , When the image obtained by driving the camera is transmitted to the local server and the first horizontal coordinate correction value (x1, y1) is received from the local server, the received first horizontal coordinate correction value (x1, y1) Control the charger to move according to the control, and when arm movement information is received from the local server, the vertical arm is lowered according to the received lowering height (h), and after rotating the horizontal arm to a horizontal state, the horizontal arm An electric vehicle wireless charging system characterized by controlling the arm to be stretched according to the received tensile length (L). The method of claim 1, wherein the automatic charging facility further comprises a distance sensor (S) installed on one side facing the ground when the horizontal arm of the charger is in a horizontal state,
The controller
When the charging target is the second electric vehicle C2 and the horizontal arm rotates from the vertical state to the horizontal state after the vertical arm descends at the same time, the distance sensor S is driven, and the distance sensor ( Sending the distance value information detected by S) to the local server,
the local server
It is executed when the second electric vehicle C2 is the charging target, and secondarily determines whether the power supply pad collides with the vehicle body by comparing and utilizing the distance value information transmitted from the controller and the rotation radius information of the preset power supply pad. a collision determination unit;
The second horizontal coordinate correction value (x2, y2 ) The electric vehicle wireless charging system further comprising a second horizontal coordinate corrector for detecting. The method of claim 2, wherein the moving means
a roller unit winding and pulling out the power cable;
Doedoe installed in the ceiling structure of the parking lot in the X-axis direction, the first guide rails installed spaced apart in the Y-axis direction;
Second guide rails installed in the Y-axis direction on the ceiling structure of the parking lot and spaced apart from each other in the X-axis direction;
a first movable body coupled with the first guide rail to be movable along the first guide rail in the X-axis direction and moving the power cable from the roller unit in the X-axis direction;
Further comprising a second movable body for moving the power cable from the roller unit in the Y-axis direction by combining with the second guide rail so as to be movable in the Y-axis direction along the second guide rail,
The electric vehicle wireless charging system, characterized in that the charger body is coupled to the lower portion of the second mobile body. The wireless charging system for an electric vehicle according to claim 3, wherein the power receiving coil stores induced electromotive force generated by using an electromagnetic induction method or a magnetic resonance method in a vehicle battery in conjunction with the power supply coil. The method of claim 4, wherein the management server, when receiving a payment request from the user through the charging reservation application, processes the payment of the charging cost according to the amount of electricity charged in the corresponding electric vehicle using a payment method selected by the user. A wireless charging system for electric vehicles. The wireless charging system for electric vehicles according to claim 5, wherein the first guide rails and the second guide rails are formed along the line of the parking surface.

Images