KR101229139B1 - Charging system for electric vehicle - Google Patents

Abstract

The present invention relates to an electric vehicle charging system. The present invention provides a charging unit for applying a charging current to the battery of the electric vehicle; A charging signal output unit configured to provide a charging signal to the charging unit; At least one connection unit which is electrically connected to the battery of the electric vehicle by wire or wirelessly to provide a charging current of the charging unit to the battery; An electricity supply unit controlling electricity supply of the connection unit and the charging unit; A charging meter for measuring an amount of power charged in the battery by energizing the connection unit and the charging unit under control of the energization unit; A rate settlement unit for calculating a rate according to the amount of power measured by the charging meter; A vehicle information unit recognizing vehicle information of the electric vehicle waiting to be charged through the connection unit; A display unit displaying an operating state of at least one of the components; And a controller configured to control the operation of the components such that the battery is charged through the connection unit and the settled fee is guided to the owner or the manager. The present invention can sequentially or simultaneously charge a plurality of electric vehicle batteries using a plurality of connections provided in the charging unit.

Description

EV Charging System {CHARGING SYSTEM FOR ELECTRIC VEHICLE}

The present invention relates to an electric vehicle charging system.

Recently, as global warming continues due to excessive carbon emissions, abnormal weather is occurring. Therefore, interest and development of electric vehicles and hybrid vehicles are being made to reduce carbon emissions.

In general, an electric vehicle or electric vehicle (EV) refers to a vehicle that uses a battery and a motor without using petroleum fuel and an engine.

Such an electric vehicle may be driven using electric energy charged in the battery as the battery mounted therein by the general charging system in the parked state.

The above charging system is provided in a shopping center or an apartment parking lot. Therefore, the electric vehicle charges the battery by connecting the power line of the charging system to the battery while being parked in the parking lot and switching the power relay to conduct or cut off the power line.

However, in the above-described charging system, when the battery of the electric vehicle is to be charged, the next vehicle must wait while the charging of the vehicle to be charged first, and the inconvenience of waiting more time when the vehicle is charging slowly. There is this. Therefore, in order to solve this problem, not only the chargers corresponding to the number of vehicles waiting to be provided but also the installation place where the chargers are installed, there is a problem in that the cost is excessively required. That is, since the general charging system charges one by one, there is a problem in that a long time is required for charging and one charger is provided for each vehicle.

In addition, when the long-term parking, the battery of the electric vehicle is discharged, there is also a problem that the battery life is significantly reduced when the charge amount of the battery is less than the prescribed charge amount.

Moreover, the lack of a configuration that can detect the charge level of the battery of the electric vehicle and whether the battery is broken, it is not possible to recognize the cause of the failure of the battery does not prevent the safety accident in advance, and until the replacement of the failed battery Problems may occur that can not drive the vehicle.

The present invention has been made to solve this problem, it is possible to charge a plurality of electric vehicles even if the charging current is supplied from a single current supply source, in addition to a plurality of electric vehicles by sequentially supplying the supplied charging current to a plurality of electric vehicles Can charge all of them sequentially, or provide charging current to multiple electric vehicles at the same time to charge multiple electric vehicles all at once, and furthermore, it consists of a single current source, which can reduce installation cost and installation area. It is an object to provide a charging system.

In particular, an object of the present invention is to provide an electric vehicle charging system capable of recovering and selling residual power to a battery of an electric vehicle.

In addition, another object of the present invention is to provide an electric vehicle charging system capable of detecting a failure of a battery of an electric vehicle.

The present invention for achieving the above object, the charging unit for applying a charging current to the battery of the electric vehicle; A charging signal output unit configured to provide a charging signal to the charging unit; A plurality of connection parts connected to the battery of the electric vehicle so as to be energized wirelessly or wired to provide a charging current of the charging unit to the battery; An electricity supply unit controlling electricity supply of the connection unit and the charging unit; A charging meter for measuring an amount of power charged in the battery by energizing the connection unit and the charging unit under control of the energization unit; A rate settlement unit for calculating a rate according to the amount of power measured by the charging meter; A vehicle information unit recognizing vehicle information of the electric vehicle waiting to be charged through the connection unit; A display unit which displays at least one operation state of the charging unit, output unit, connection unit, power supply unit, charging meter, charge settlement unit, vehicle information unit, and display unit; And controlling the operation of at least one of the charging unit, the output unit, the energizing unit, the charging meter, the fare settlement unit, the vehicle information unit, and the display unit such that the battery is charged through the connection unit, and the calculated fee is guided to the owner or the manager. It includes a control unit.

In the present invention as described above, since the charging unit is composed of one, and the connecting portion is configured to charge a plurality of electric vehicle batteries by the charging current supplied from the charging unit is composed of a plurality of charging unit is formed in a larger volume than other components It is possible to recharge a large number of electric vehicle batteries without this, which can significantly reduce the installation cost and installation area. That is, a single charger can charge a plurality of electric vehicles.

In addition, when the energization unit energizes the plurality of connection units sequentially, the plurality of electric vehicle batteries may be charged while being rotated in order, thereby providing excellent efficiency compared to the number of the charging units. When energized, many electric vehicle batteries can be charged at once, reducing the total time required to charge the battery.

In particular, since vehicle information can be registered through the vehicle information unit, a charge may be charged to the owner corresponding to the vehicle information when the registered vehicle is charged, and further, the remaining power can be recovered and sold to the battery of the electric vehicle through the power recovery unit. In addition, it is possible to prevent the discharge of the battery of an electric vehicle that is not in operation, as well as to enable the smart grid to recharge the battery of the discharged electric vehicle by receiving a refund of the remaining power sold in the money or supplying electricity corresponding to the sales amount. Can be.

In addition, when charging the battery of the electric vehicle can detect the leakage current or temperature of the battery to detect the failure of the battery, so that the owner can recognize the cause of the failure of the battery and can quickly replace the failed battery.

1 is a block diagram showing an electric vehicle charging system of the present invention.
2 is a circuit diagram showing an embodiment of a connecting portion applied to the present invention.
Figure 3 is a block diagram showing another embodiment of a connecting portion applied to the present invention.
Figure 4 is a block diagram of the charging unit applied to the present invention.
5 is a block diagram of a terminal communication unit applied to the present invention.
6 is a block diagram of a power recovery unit applied to the present invention.
7 is a block diagram of a vehicle information unit applied to the present invention.
8 is a block diagram showing an embodiment of a vehicle information registration unit applied to the present invention.
9 is a block diagram showing another embodiment of a vehicle information registration unit applied to the present invention.
10 is a block diagram showing a vehicle information confirmation unit applied to the present invention.
11 is a block diagram showing a failure detection unit applied to the present invention.
12 is a block diagram showing a time setting unit applied to the present invention.

When explaining the present invention by the load, the accompanying drawings as follows.

As shown in FIG. 1, the electric vehicle charging system of the present invention includes a charging unit 20, a charging signal output unit 40, a connection unit 10, an energization unit , a charging meter 80, a charge settlement unit 90, and a vehicle information unit. 100, a display unit 200, and a control unit 300.

The charging unit 20 applies a charging current to the battery B of the electric vehicle, as shown in FIG. 1. That is, the charging unit 20 applies the external power to the battery B in a state capable of charging. Such a charging unit 20 may include, for example, a slow charging unit 21, a rapid charging unit 23, and a charging switching unit 25 as shown in FIG. 2.

The slow charging unit 21 charges the battery B slowly by maintaining a chargeable current provided from the charging unit 20 to the connection unit 10 in a slow charging state as shown in FIG. 4. As illustrated in FIG. 4, the rapid charging unit 23 rapidly increases the amount of chargeable current provided from the charging unit 20 to the connection unit 10 in a state capable of rapid charging, thereby rapidly charging the battery B. The charging switching unit 25 is switched by the charging signal output from the charging signal output unit 40 and applies the current of the slow charging unit 21 or the rapid charging unit 23 to the battery B as shown in FIG. 4. do. That is, the charging switching unit 25 selectively switches the slow charging unit 21 or the fast charging unit 23 according to the selection result such that a charging current corresponding to the selected slow charging or rapid charging is applied. The charging switching unit 25 is preferably composed of a relay capable of electronic control.

Meanwhile, the charging signal output unit 40 provides a charging signal to the charging unit 20 as shown in FIG. 1. The charging signal output unit 40 operates the charging unit 20 by applying a charging signal to the charging unit 20 so that the charging current is provided to the connection unit 10. Of course, the charging signal output unit 40 applies the charging signal to the charging switch unit 25 when the charging switch unit 25 is provided in the charging unit 20. The charging signal output unit 40 may be configured as, for example, a charging button. In particular, the charging signal output unit 40 may be configured as a fast charging button or a slow charging button for operating the slow charging unit 21 or the quick charging unit 23 described above. Therefore, the user may charge the battery B of the electric vehicle by using the charge button, and when the charge button is configured as a quick charge button or a slow charge button, the user may charge the battery B of the electric vehicle rapidly or slowly.

The connection part 10 is configured as at least one as shown in FIG. 1 to be electrically connected to the battery B of the electric vehicle wirelessly or wired to provide a charging current of the charging part to the battery B. For example, the connection part 10 is coupled to an outlet ct, which is a charging terminal of the electric vehicle connected to the battery B of the electric vehicle, as shown in FIG. 3, to supply current from the charging unit 20 to the battery B of the electric vehicle. It may be composed of a plug 12 provided with a power line (C). That is, the connection unit 10 may be configured by wire. The connection portion 10 is coupled to the outlet (ct) is provided in the electric vehicle plug 12 is connected to the battery (B). Therefore, the battery B is charged with the charging current by the combination of the plug 12 and the outlet ct.

Here, the power line (C) described above is a switch operation to be described later to switch the battery (B) is selectively connected to the charging unit 20 and the power recovery unit 600 to be described later as shown in FIG. It can be installed possibly. Since the switch SW is a component of the energization unit to be described later, it will be described later.

On the other hand, unlike the above, the connection unit 10 may be configured as a wireless charger that wirelessly supplies the current of the charging unit 20 to the battery of the electric vehicle in an inductive manner. That is, the connection unit 10 may be configured wirelessly. The connection part 10 is capable of wireless charging and may be configured as a conventional wireless mat as shown in FIG. 1 called a power mat.

As described above, the wireless charging connection unit 10 may include, for example, a primary coil part 11, a secondary coil part 13, and a rectifier 15. The primary coil part 11 supplies an input external current by an electromagnetic induction method. The primary coil part 11 is embedded in the ground and is not exposed to the outside. The secondary coil part 13 receives a current supplied from the primary coil part 11 in an electromagnetic induction manner. The secondary coil portion 13 is installed at the bottom of the electric vehicle. The rectifier 15 rectifies and smoothly converts the current input through the secondary coil part 13 as shown in FIG. 2 and then connects the battery B through a cable or a connector as shown in FIG. 2. Supply to charge. The rectifier 15 is directly connected to the battery B by an electric wire or connected to the battery B by a plug pg connected to the electric wire connected to an outlet ct connected to the battery B. Therefore, the battery B can be replaced with another battery B according to the separation of the plug pg and the outlet ct. Here, the rectifier 15 may be composed of a bridge diode and a smoothing capacitor to rectify the AC current not shown. Since the wireless charging type connection unit 10 is composed of a conventional wireless mat, it will not be described in detail any further. In conclusion, the wireless charging connection unit 10 can wirelessly charge the external power to the battery (B) mounted on the electric vehicle can eliminate unnecessary wires.

On the other hand, the energization part controls the energization of the charging part 20 and the connection part 10. For example, as illustrated in FIG. 1, the energization unit may be configured of a switch SW provided in the power line C described above. The switch SW sequentially energizes the connection units 10 with the charging unit 20 to sequentially charge the batteries B respectively connected to the connection units 10. However, the switch SW may also simultaneously charge the battery B, which is respectively connected to the connection units 10, by energizing the same. Here, the above-described switch SW is preferably configured as a power relay to enable electronic control.

On the contrary, the energization unit may be configured as the state of charge check unit 30 as shown in FIG. For example, the charging state checking unit 30 is configured as a circuit for detecting a current change, and as shown in FIG. 3, the plug 12, which is the connection unit 10 connected to the power line C, and the outlet ct of the electric vehicle are provided. By detecting a change in current generated while being connected, the connection state of the plug 12 and the outlet ct may be checked. Accordingly, since the charging state checking unit 30 may check the vehicle to which the plug 12 and the outlet ct are connected, the charging state checking unit 30 may be switched to the automatic charging mode for the vehicle without the switch SW. That is, the charging state checking unit 30 automatically energizes the charging unit 20 and the connecting unit 10 when it is confirmed that the plug 12 and the outlet ct are connected. Therefore, the battery B may be charged through the connection unit 10. Of course, the charging state checker 30 may be configured to charge the batteries B connected to the connection units 10 sequentially or simultaneously, as in the switch SW. Since this configuration is easily understood by those skilled in the art, a detailed description thereof will be omitted.

As shown in FIG. 1, the charging meter 80 measures the amount of power charged in the battery B by the energization operation of the energization unit. The charging meter 80 uses a conventional power meter.

As shown in FIG. 1, the charge settlement unit 90 calculates a charge according to the amount of power measured by the charging meter 80. The rate settlement unit 90 converts the amount of power to be measured by inputting the amount of power for each unit of power. Since the charge settlement unit 90 is easily understood by those skilled in the art, detailed description thereof will be omitted.

As shown in FIGS. 1 and 7, the vehicle information unit 100 is connected to the connection unit 10 to recognize vehicle information of an electric vehicle for charging. Such a vehicle information unit 100 is, for example, as shown in Figure 7 vehicle information registration unit 110, vehicle information storage unit 130, vehicle information confirmation unit 150, vehicle information authentication unit 170 and signal transmission unit And 190.

As shown in FIG. 1, the vehicle information registration unit 110 registers vehicle information of an electric vehicle on which a battery B is mounted. The vehicle information registration unit 110 may include, for example, an input unit 111 and a screen providing unit 113 as illustrated in FIG. 8. The input unit 111 receives identification data for identifying the electric vehicle. The screen providing unit 113 provides a screen for inputting identification data. Here, the identification data may be a license plate number of the vehicle. Accordingly, the owner may register the vehicle by inputting the vehicle number of the license plate through the vehicle information registration unit 110. That is, the vehicle information registration unit 110 may complete vehicle information registration by a simple process in which the owner inputs an authentication number which is a vehicle number.

Alternatively, the vehicle information registration unit 110 may be configured to include a camera 115 and an image extraction unit 117, for example, as shown in FIG. The camera 115 photographs the vehicle number of the license plate attached to the electric vehicle. The image extracting unit 117 extracts a text image from the image photographed by the camera 115 and transmits it to the vehicle information storage unit 130. Therefore, the vehicle information registration unit 110 having such a configuration may automatically register the vehicle by the vehicle number photographed by the camera 115 without the vehicle owner directly inputting the vehicle number.

Meanwhile, the vehicle information storage unit 130 described above stores vehicle information registered through the vehicle information registration unit 110. The vehicle information storage unit 130 is composed of a conventional memory not shown.

The vehicle information confirmation unit 150 is connected to the connection unit 10 to confirm vehicle information of the electric vehicle for charging. The vehicle information checking unit 150 may include a camera 151, an image extracting unit 153, and an image comparing unit 155 as shown in FIGS. 7 and 10. The camera 151 photographs the vehicle number of the electric vehicle. The image extractor 153 extracts a text image from the image photographed by the camera 151. The image comparing unit 155 checks the vehicle information of the electric vehicle by comparing the vehicle image stored in the vehicle information storage unit 130 with the text image extracted from the image extraction unit 153. The vehicle information checking unit 150 may automatically check the vehicle information because the vehicle owner may check the vehicle number which is the authentication number by photographing the camera 151 without directly inputting the authentication number which is the vehicle number. The vehicle information checking unit 150 may further include a sensor 157 for detecting the electric vehicle to operate the camera 151, as shown in FIG.

Meanwhile, the above-described vehicle information authentication unit 170 compares the vehicle information identified by the vehicle information checking unit 150 with the vehicle information stored in the storage unit 130 and verifies whether the vehicle is a registered vehicle. The signal transmitter 190 transmits the authentication signal applied from the vehicle information authentication unit 170 to the controller 300.

As described above, the vehicle information unit 100 registers vehicle information and provides the registered vehicle information to the controller 300 to charge a fee settled to the owner corresponding to the registered vehicle information through the controller 300.

Meanwhile, the aforementioned display unit 200 may be configured as a display to display an operating state of at least one of the components, for example, as shown in FIG. 1. That is, the display unit 200 checks whether the charging state checking unit 30 to be described later, the charging state of the charging unit 20, the measuring state of the charging meter 80, the charge history calculated by the charge settlement unit 90 and the vehicle Vehicle information recognized by the information unit 100 may be displayed. Here, the charging state of the charging unit 20 may be a slow charging state of the slow charging unit 21 or a rapid charging state of the rapid charging unit 23.

For example, as illustrated in FIG. 1, the control unit 300 may operate the components such that the battery B is charged through the connection unit 10, and the charge details calculated by the charge settlement unit 90 are guided to the borrower or the manager. To control. That is, the controller 300 controls the charging signal output unit 40 while the charging unit 20 is operated so that the charging switching unit 25 applies the current of the charging unit 20 to the connection unit 10. The charged power amount of the charge meter 80 and the charge details of the charge settlement unit 90 are transmitted to the owner or manager of the electric vehicle registered in the vehicle information unit 100.

The controller 300 may further include a storage 400 as shown in FIG. 1. The storage unit 400 stores charge information about the charge amount before and after the charge of the battery B measured by the charge meter 80 and the charge information calculated by the charge settlement unit 90. Therefore, since the storage unit 400 stores the charging information and the charge information, the manager may systematically manage the stored information.

The controller 300 may further include a terminal communication unit 500 as shown in FIG. 1. The terminal communication unit 500 transmits the charging information and the charge information stored in the storage unit 400 to the terminal or the owner's phone. For example, the terminal communication unit may include a storage DB 510 and a data transmission unit 530 as shown in FIG. 5. The storage DB 510 stores the address of the terminal or the telephone number of the owner or manager. The data transmitter 530 transmits the charging information and the charging information stored in the storage 400 to a terminal or a phone corresponding to an address or a phone number.

The terminal communication unit 500 as described above transmits the charging information and charging information through the terminal or the phone carried by the borrower. Therefore, the borrower can easily check the charging information and the charging information from a distance.

Meanwhile, as illustrated in FIG. 1, the controller 300 may further include a power recovery unit 600 that recovers the remaining power of the battery B and transmits the power to the power purchaser DM of the power purchaser. . Here, the power recovery unit 600 may be provided with a switch (SW) to enable a switching operation between the power supply unit (DM) in order to receive the remaining current of the battery (B) to the power supply unit (DM). . In this case, the power supply unit DM may be a battery B mounted on another electric vehicle or a power grid of a power plant. The power recovery unit 600, for example, as shown in Figure 6, the sales signal input unit 610, power transmission unit 620, power transmission switching unit 640, recovery meter 650, conversion unit 660, sales It may be configured to include an information memory 670 and sales information transmission unit 680.

The selling signal input unit 610 may be configured as a button for inputting a selling selection signal for selling the remaining power of the battery B. Such a button may be provided in a case (not shown) of the power recovery unit 600.

The power transmitter 620 transmits the remaining power of the battery B to the power supply / discharge unit DM so that the residual current of the battery B is transmitted to the power supply / department DM. The power transmission unit 620 may be a power grid connected to a power plant or a wired connection unit 10 connected to a wire (C).

The power transmission switching unit 640 switches the battery B and the power transmission unit 620 while switching in response to the sale selection signal of the sales signal input unit 610, thereby transmitting the residual current of the corresponding battery B through the power transmission unit 620. The power is transmitted to the power supply unit (DM). That is, the power transmission switching unit 640 is a switch for selectively energizing the battery (B) and the power transmission unit 620.

The recovery meter 650 measures the amount of power transmitted from the power transmission unit 620 to the battery B by the power transmission switching unit 640. The recovery meter 650 is preferably applied to a conventional power meter.

The conversion unit 660 calculates a refund according to the amount of power measured by the recovery meter 650. The conversion unit 660 converts the amount of power measured by the unit amount of power amount into the amount of money. Since the conversion unit 660 can be easily understood by those skilled in the art, detailed description thereof will be omitted.

The sales information memory 670 stores data about the amount of power measured by the recovery meter 650 and sales information about the refund amount calculated by the conversion unit 660. This sales information memory 670 is composed of a conventional RAM or ROM.

The sales information transmitter 680 transmits data about the sales information to the controller 300 or to the owner or manager through a communication network. Since the sales information transmitter 680 transmits the sales information to the borrower, the borrower may check the sales information at a far distance.

As described above, the power recovery unit 600 may select another battery B or the power grid of the power plant through the sales signal input unit 610, so that the owner is discharged when the electric vehicle is not operating. The current can be sold to the power plant through the battery (B) or the power grid of another electric vehicle through the connection unit 10, as well as to charge the battery (B) of his own time at his or her desired time using the refund amount calculated at the time of sale. have.

Meanwhile, the controller 300 may further include a failure detection unit 700 as shown in FIG. 1. The failure detection unit 700 may be configured to include a current sensor 710, a temperature sensor 730 and the stop signal transmitter 750, for example, as shown in FIG. The current sensor 710 detects a leakage current of the battery B. The temperature sensor 730 detects a temperature generated from the battery B. The stop signal transmitter 750 transmits a timing signal to the controller so that the controller stops the charging signal output unit 40 according to the detection of the current sensor 710 or the temperature sensor 730.

The failure detection unit 700 as described above can detect the failure of the battery (B) by the current sensor 710 or the temperature sensor 730 at the time of charging the battery (B), the failure of the battery (B) The owner can not only recognize the cause but also prevent the oxide film formation of the battery terminal (not shown), the melting of the battery terminal, and the explosion of the battery B, which may occur when the failed battery B is charged. have.

Meanwhile, the controller 300 may further include a battery charge measuring unit 900 as shown in FIG. 1. Such a battery charge measuring unit 900 may be configured as a conventional battery fuel gauge (FUEL GAUGE) for measuring the charge amount of the battery (B) and for transmitting a measurement signal for the measured charge amount to the controller 300. In this case, the controller 300 controls the display unit 200 to display the charge amount of the battery B according to the received measurement signal on the display unit 200 described above. Therefore, the owner or the manager can check the state of charge (charge amount) of the battery B through the display unit 200. On the contrary, the battery charge measuring unit 900 may be configured as a current sensor or a voltage sensor that measures the current or voltage of the battery B and provides it to the controller 300 through the terminal or the connection unit 10 of the battery B. It may be. In this case, the controller 300 controls the display unit 200 to display the charge amount of the battery B according to the received measurement signal on the display unit 200. Therefore, the owner or the manager can check the charge amount of the battery B through the display unit 200.

The controller 300 may further include a time setting unit 800 as shown in FIG. 1. The time setting unit 800 is for setting a reservation time for charging or selling the battery B and for providing the set time for the charging or selling to the controller 300, for example, as shown in FIG. As described above, the apparatus may include a charge sales selection unit 810, a time input unit 830, and a storage unit 850. The charge sales selector 810 selects to charge the battery B or sell the residual current of the battery B. The time input unit 830 inputs a time for charging the selected battery B or selling the residual current of the battery B, and data-sets the input time. The storage unit 850 stores data about the time data data generated by the time input unit 830.

The time setting unit 800 as described above is set to a predetermined time when the user selects the charge or sale of the battery B using the charge sale selection unit 810 and then sets a reservation time using the time input unit 830. The battery B is charged or sold.

In addition, the time setting unit 800 may further include a low-cost time guide unit 870 as shown in FIG. The low cost time guider 870 guides the low cost time when charging is selected through the charge sales selector 810.

The low cost time guider 870 as described above guides the low cost time when charging of the battery B is selected through the charge sales selector 810. Therefore, the borrower can save the charge when charging during the low cost.

As such, the present invention constructed operates as follows.

First, the vehicle information registration unit 110 of the vehicle information unit 100 registers the vehicle information of the electric vehicle input by the owner as shown in FIGS. 3 and 7. Subsequently, the vehicle information checking unit 150 of the vehicle information unit 100 compares the vehicle information registered by the vehicle information registration unit 110 with the vehicle information of the license plate of the electric vehicle when the electric vehicle is positioned in the charging state 10. Check it.

Subsequently, in order to charge the battery B of the electric vehicle, the owner selects a slow charge button or a quick charge button of the charge signal output unit 40 as shown in FIG. 1. In this case, when the slow charging unit 21 is selected by the slow charging button, as shown in FIG. 4, the current provided from the charging unit 20 to the connection unit 10 is maintained in a state capable of slow charging. In addition, the fast charging unit 23 increases the current provided from the charging unit 20 to the connection unit 10 in a state capable of rapid charging when it is selected by the fast charging button as shown in FIG.

In this case, the charging switching unit 25 applies the charging current of the slow charging unit 21 or the rapid charging unit 23 while switching by the charging signal output from the charging signal output unit 40 as shown in FIG. 1. . Then, the energizing unit energizes the connecting unit 10, which is connected to the battery B of the electric vehicle, from the plurality of connecting units 10 with the charging unit 20. Of course, the connection unit 10 is applied to the plug 12 of the electric vehicle through the power supply line (C) the charging current of the charging unit 20 applied by the power supply unit when the wire is configured as shown in FIG. Supply power to the outlet (ct) of the vehicle. On the contrary, when the connection part 10 is configured to supply power to the battery B in an electromagnetic induction manner, the power supply of the charging part 20 is wirelessly supplied through the secondary coil part 13 and the primary coil part 11 mounted on the electric vehicle. Is supplied to the battery (B). Therefore, the battery B can be charged rapidly or slowly.

Here, when the above-described energizing unit is configured as a switch (SW), when any one of the electric vehicle battery (B) is completed through the connecting portion 10, as shown in Figure 1, the other electric vehicle battery (B) is charged The switch SW is sequentially operated to be switched. Therefore, the plurality of electric vehicle batteries B are sequentially charged. Alternatively, the energization unit may switch operation so that the switch SW simultaneously charges the battery B of the electric vehicles.

When the energizing unit is configured as the charging state checking unit 30 as shown in FIG. 1 instead of the above-described switch SW, the electric vehicle battery B in which the charging state checking unit 30 is connected to the connecting units 10. After confirming these, the plurality of connection units 10 and the charging unit 20 may be sequentially energized to sequentially charge the plurality of electric vehicle batteries B. Alternatively, the plurality of connection units 10 and the charging unit 20 may be energized simultaneously. It is also possible to charge a plurality of batteries (B) collectively.

On the other hand, the charging meter 80 measures the amount of charge charged in the battery (B) when the battery (B). The payment unit 90 calculates a fee based on the measured power amount. Therefore, the controller 300 transmits the charging information on the charge amount and the charge information on the charge to the terminal or the phone of the owner or the manager through the terminal communication unit 500.

On the other hand, when the owner wants to sell the residual power of the battery B of the electric vehicle, the owner selects the number of residual power of the battery B through the button which is the selling signal input unit 610 as shown in FIGS. 1 and 6. . Accordingly, the power transmission unit 620 sells the remaining power of the battery B by transmitting the remaining power of the battery B to the power plant through the electric power grid or by supplying the battery B of another electric vehicle. In this case, the borrower may set a reservation time for charging or selling through the time input unit 830 as shown in FIG. 12. Accordingly, the battery B may be charged at the reserved time or the remaining power may be transmitted to the power supply / receiving unit DM.

Thus, when the residual power is sold, the recovery meter 650 measures the amount of power of the residual power recovered from the battery B as shown in FIG. 6. Then, the conversion unit 660 calculates the refund according to the measured power amount. Therefore, the control unit 300 transmits the sales information on the recovered power amount and the refund to the terminal or the telephone of the owner through the terminal communication unit 500.

In the electric vehicle charging system according to the embodiment of the present invention as described above, the charging unit 20 is composed of one and the connection portion 10 is composed of a plurality of electric vehicle batteries (B) by the charging current supplied from the charging unit 20 Since it can be charged, it is possible to charge a plurality of electric vehicle batteries (B) without having to configure a plurality of charging parts 20 formed larger than other components, thereby significantly reducing the installation cost and installation area. have. That is, a single charger can charge a plurality of electric vehicles.

In addition, when the energizing unit sequentially energizes the plurality of connection units 10 with the charging unit 20, the electric vehicle batteries B may be charged while being rotated in order, thereby providing excellent efficiency compared to the quantity of the charging unit 20. On the contrary, when the energization unit energizes the plurality of connection units 10 simultaneously with the charging unit 20, the electric vehicle batteries B may be charged at the same time, thereby reducing the total time required for charging the battery.

In particular, since the remaining power can be recovered and sold to the battery B of the electric vehicle through the power recovery unit 600, not only the discharge of the battery B of the electric vehicle not running can be prevented, but also a smart grid is possible. By recharging the residual power sold by money or by re-supplying electricity corresponding to the sales amount, the battery B of the discharged electric vehicle may be recharged.

In addition, when charging the battery of the electric vehicle can detect the leakage current or temperature of the battery (B) to detect the failure of the battery, so that the owner can recognize the cause of the failure of the battery (B) as well as the failed battery (B ) Can be replaced quickly.

Since the above-described embodiments are merely illustrative of the preferred embodiments of the present invention, the scope of application of the present invention is not limited to the above, and appropriate modifications are possible within the scope of the same idea. Therefore, since the shape and structure of each component shown in the embodiment of the present invention can be carried out by deformation, it is natural that the modification of the shape and structure belong to the appended claims of the present invention.

10: connection part 20: charging part
30: charging state check unit 21: slow charging unit
23: fast charging unit 25: charging switching unit
40: charge signal output unit 80: charge meter
90: fare settlement department 100: vehicle information department
200: display unit 300: control unit

Claims (11)

A charging unit which applies a charging current to the battery of the electric vehicle;
A charging signal output unit configured to provide a charging signal to the charging unit;
A plurality of connection parts connected to the battery of the electric vehicle so as to be energized wirelessly or wired to provide a charging current of the charging unit to the battery;
An electricity supply unit controlling electricity supply of the connection unit and the charging unit;
A charging meter for measuring an amount of power charged in the battery by energizing the connection unit and the charging unit under control of the energization unit;
A rate settlement unit for calculating a rate according to the amount of power measured by the charging meter;
A vehicle information unit recognizing vehicle information of the electric vehicle waiting to be charged through the connection unit;
A display unit which displays at least one operation state of the charging unit, output unit, connection unit, power supply unit, charging meter, charge settlement unit, vehicle information unit, and display unit; And
The controller controls the operation of at least one of the charging unit, the output unit, the energization unit, the charging meter, the charge settlement unit, the vehicle information unit, and the display unit so that the battery is charged through the connection unit and the calculated charge is guided to the owner or the manager. Including;
The vehicle information unit,
A vehicle information registration unit for registering vehicle information of the electric vehicle equipped with the battery;
A vehicle information storage unit for storing vehicle information registered through the vehicle information registration unit;
A vehicle information confirmation unit connected to the connection unit to confirm vehicle information of the electric vehicle for charging;
A vehicle information authentication unit for comparing the vehicle information identified by the vehicle information checking unit with the vehicle information stored in the storage unit and verifying whether the vehicle is a registered vehicle; And
And a signal transmission unit for transmitting an authentication signal applied from the vehicle information authentication unit to the control unit. The method of claim 1, wherein the energization unit,
The electric vehicle charging system according to claim 1, wherein the connecting parts are sequentially energized with the charging part to sequentially charge the batteries respectively connected to the connecting parts. The method of claim 1, wherein the charging unit,
A slow charging unit for slowly charging the battery by maintaining a chargeable current provided from the charging unit to the connection unit in a slow charging state;
A rapid charging unit for rapidly charging the battery by increasing a current amount of a chargeable current provided from the charging unit to the connection unit in a state capable of rapid charging; And
And a charging switching unit for selectively applying current of the slow charging unit or the rapid charging unit to the battery of the electric vehicle while being switched by the charging signal output from the charging signal output unit. The method of claim 1, wherein the connection portion,
A wireless charger coupled to a charging terminal of an electric vehicle connected to a battery of the electric vehicle, the plug having a power line for supplying a current of the charging unit to the battery of the electric vehicle, or a wireless charger for wirelessly supplying the current of the charging unit to the battery of the electric vehicle in an inductive manner. Electric vehicle charging system characterized in that. The method of claim 1,
And a storage unit configured to store charge information about the charge amount before charging and the charge amount after charging of the corresponding battery measured by the charging meter, and the charge information calculated by the charge settlement unit. The method of claim 5, wherein
And a terminal communication unit which transmits the charging information and the charge information stored in the storage unit to the corresponding terminal or the owner's phone.
The terminal communication unit,
A storage DB storing the address of the terminal or the telephone number of the owner; And
And a data transmission unit for transmitting the charging information and the charging information stored in the storage unit to the terminal or the telephone corresponding to the address or the telephone number. A charging unit which applies a charging current to the battery of the electric vehicle;
A charging signal output unit configured to provide a charging signal to the charging unit;
A plurality of connection parts connected to the battery of the electric vehicle so as to be energized wirelessly or wired to provide a charging current of the charging unit to the battery;
An electricity supply unit controlling electricity supply of the connection unit and the charging unit;
A charging meter for measuring an amount of power charged in the battery by energizing the connection unit and the charging unit under control of the energization unit;
A rate settlement unit for calculating a rate according to the amount of power measured by the charging meter;
A vehicle information unit recognizing vehicle information of the electric vehicle waiting to be charged through the connection unit;
A display unit which displays at least one operation state of the charging unit, output unit, connection unit, power supply unit, charging meter, charge settlement unit, vehicle information unit, and display unit; And
The controller controls the operation of at least one of the charging unit, the output unit, the energization unit, the charging meter, the charge settlement unit, the vehicle information unit, and the display unit so that the battery is charged through the connection unit and the calculated charge is guided to the owner or the manager. Including;
A power recovery unit recovering the remaining power of the battery and transmitting the power to the power supply unit of the power purchaser;
The power recovery unit,
A selling signal input unit for providing a selling selection signal for selling the remaining power of the battery;
A power transmission unit configured to transmit the remaining power of the battery to the power supply unit such that the residual current of the battery is transmitted to the power supply unit;
A power transmission switching unit which is switched according to a sale selection signal of the sales signal input unit and energizes the battery and the power transmission unit to transmit the remaining current of the corresponding battery to a power supply unit through a power transmission unit;
A recovery meter for measuring an amount of power transmitted from the power transmitter to the battery by the power transmitter;
A conversion unit for calculating a refund according to the amount of power measured by the recovery meter;
A sales information memory in which sales information about the amount of power measured by the recovery meter and the refund payment settled by the conversion unit is data-stored; And
And a sales information transmitter to transmit the data about the sales information to the controller or to the owner or manager through a communication network. delete The method of claim 1, wherein the vehicle information registration unit,
An input unit for inputting identification data identifying the electric vehicle; And
And a screen providing unit for providing a screen for inputting the identification data. The method of claim 1, wherein the vehicle information registration unit,
A camera photographing a vehicle number of the electric vehicle; And
And an image extracting unit extracting a text image from the image photographed by the camera and transmitting the text image to the vehicle information storage unit. The method of claim 10, wherein the vehicle information confirmation unit,
A camera photographing a vehicle number of the electric vehicle;
An image extracting unit extracting a text image from the image photographed by the camera; And
And an image comparing unit comparing the text image extracted from the image extracting unit with vehicle information stored in the vehicle information storing unit to check vehicle information of the electric vehicle.

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