Electric vehicle charging device using automatic address-setting charging module and method for controlling same

Abstract

The present invention relates to an electric vehicle charging device using an automatic address-setting charging module and a method for controlling same. According to an embodiment of the present invention, the electric vehicle charging device using an automatic address-setting charging module comprises: an automatic address-setting unit for operating multiple charging modules, which are inserted into a port, in a plug-and-play manner; and a charging unit which comprises the multiple charging modules, recognizes address information, automatically set by the automatic address-setting unit, as the address of the charging unit when the charging of the electric vehicle is started, and operates at least one of the multiple charging modules to perform a charging operation.

Description

Electric vehicle charging device using an address automatic setting charging module and a control method thereof

[0001] The present invention relates to an electric vehicle rapid charging device using an address (e.g., address or ID) automatic setting charging module (CM, Charging Module) and a method for controlling the device, and more particularly, to an electric vehicle rapid charging device using an address automatic setting charging module that selects a charging module to be used among a plurality of charging modules built into the rapid charger with a set address when performing rapid charging and a method for controlling the device.

[0002] Currently, charging a target power level in an electric vehicle rapid charger relies on a drive control method tailored to the components of the charging module. For example, the control method for the charging module varies depending on the circuitry of the electric vehicle charger. In conventional technology, most rapid chargers select a charging module from among multiple built-in charging modules based on the address manually set during manufacturing and installation.

[0003] This method of manually setting the charging module address requires time for manual setting during manufacturing and installation, management of the charging module address for maintenance and system operation, and requires skilled knowledge and technology to operate it. If the charging module setting is incorrect, it causes a serious problem in that the charging module cannot be used.

[0004] In other words, the address setting method for selecting a charging module for charging electric vehicles is usually manual during product manufacturing, using DIP (Dual-inline package) switches built into the charging module. This method of manually setting the charging module address is extremely inconvenient, requiring skilled address setting knowledge, setup time during charger manufacturing, and address management.

[0005] The problem to be solved by the present invention is to provide an electric vehicle rapid charging device using an address automatic setting charging module that selects a charging module to be used among a plurality of charging modules built into the rapid charger by a set address when performing rapid charging, and a control method for the device.

[0006] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0007] In order to solve the above problem, an electric vehicle charging device using an address automatic setting charging module according to an embodiment of the present invention comprises an address automatic setting unit that operates a plurality of charging modules inserted into a port in a plug and play manner, and a charging unit that recognizes address information automatically set by the address automatic setting unit as a self-address when charging of an electric vehicle begins and operates at least one module among the plurality of charging modules to perform a charging operation.

[0008] The above charging unit can use the unique identification information specified for the port as the address information.

[0009] Each of the above charging modules is input to the first inverter and the second inverter, respectively, by a positive voltage (+V DC ) to the voltage and current of the alternating current and then rectified to output the voltage and current of the first power, and the negative voltage (-V) input to the third inverter and the fourth inverter, respectively. DC) to an alternating voltage and current and then rectified to output the voltage and current of the second power, and a switching circuit unit that operates the first conversion circuit unit and the second conversion circuit unit in series or in parallel to output a high voltage and high current higher than a reference by a series and parallel combination of the voltage and current of the first power and the voltage and current of the second power.

[0010] The above electric vehicle rapid charging device may further include a control unit that determines power distribution and series and parallel connection methods using the plurality of charging modules based on target power information related to the target power for the charging when the charging starts, and controls the plurality of charging modules according to the determined result.

[0011] The charging unit may include a communication unit that receives unique identification information assigned to the port for each charging module from the address automatic setting unit and transmits the information to the control unit.

[0012] A method for operating an electric vehicle charging device using an address automatic setting charging module according to an embodiment of the present invention for solving the above problem includes a step of causing an address automatic setting unit to operate a plurality of charging modules inserted into a port in a plug-and-play manner, and a step of causing a charging unit including the plurality of charging modules to recognize address information automatically set by the address automatic setting unit as its own address when charging of an electric vehicle begins and to operate at least one module among the plurality of charging modules to perform a charging operation.

[0013] The step of performing the above charging operation may use the unique identification information specified to the port as the address information.

[0014] The step of performing the above charging operation is such that the first conversion circuit unit constituting each of the charging modules inputs a positive voltage (+V) to the first inverter and the second inverter, respectively. DC) to the voltage and current of the alternating current and then rectified to output the voltage and current of the first power, and the second conversion circuit unit constituting each of the charging modules outputs the negative voltage (-V) input to the third inverter and the fourth inverter, respectively. DC ) to an alternating voltage and current and then rectified to output the voltage and current of the second power, and a switching circuit unit may include a step of operating the first conversion circuit unit and the second conversion circuit unit in series or in parallel to output a high voltage and high current higher than a reference by a series and parallel combination of the voltage and current of the first power and the voltage and current of the second power.

[0015] The above driving method may further include a step in which the control unit determines a power distribution method and a series and parallel connection method using the plurality of charging modules based on target power information related to the target power for the charging when the charging starts, and controls the plurality of charging modules according to the determined result.

[0016] The above driving method may further include a step in which the communication unit configured in the charging unit receives unique identification information assigned to the port for each charging module from the address automatic setting unit and transmits the information to the control unit.

[0017] According to an embodiment of the present invention, by using an address auto-setting charging module as a plug-and-play address board capable of automatically recognizing the address of a charging module, it is possible to solve the problems of manual setting in the past, which required skilled knowledge and technology, made maintenance difficult due to the need for address management of the charging module, and made it impossible to use the charging module when the setting of the charging module was incorrect.

[0018] In other words, according to an embodiment of the present invention, by flexibly controlling automatic setting of charging modules in a plug-and-play manner that can automatically recognize the addresses of charging modules built into a plurality of charging modules in an electric vehicle rapid charger, maintenance of the rapid charger can be facilitated without requiring skilled knowledge and technology, and the problem of manual setting that makes it unusable when the settings of the charging module are incorrect can be solved.

[0019] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0020] Figure 1 is an internal configuration diagram of a 60 kW rapid charger according to an embodiment of the present invention.

[0021] Figure 2 is a drawing for explaining the address board of Figure 1.

[0022] Figure 3 is a complete flowchart of data reading and writing of a charging module for electric vehicle charging.

[0023] Figure 4 is a configuration diagram of the address board of Figure 1.

[0024] Figure 5 is a circuit wiring diagram of the address board of Figure 4.

[0025] Figure 6 is a configuration diagram of a charging module (CM) that generates high output with multiple low outputs.

[0026] Figure 7 is a circuit wiring diagram (or circuit diagram) of a charging module that generates high output with a large number of low outputs.

[0027] Figure 8 is a flow chart of the process of charging an electric vehicle using a rapid charger.

[0028] Figure 9 is a flowchart of a process of confirming target power and proceeding with charging through an address board and charging module according to an embodiment of the present invention.

[0029] Figure 10 is a flowchart showing the driving process of an electric vehicle (rapid) charging device according to an embodiment of the present invention.

[0030] The present invention is not limited to the embodiments described below, but can be implemented in various different forms. These embodiments are merely illustrative of the contents of the present invention and are provided to provide those skilled in the art with a detailed understanding of the scope of the invention. The present invention is defined solely by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

[0031] Embodiments described herein will be described with reference to cross-sectional and / or plan views, which are ideal examples of the present invention. In the drawings, the illustrated regions are expressed for the effective explanation of the technical contents. Therefore, the regions illustrated in the drawings have a schematic nature, and the shapes of the regions illustrated in the drawings are intended to illustrate specific forms of the device regions and are not intended to limit the scope of the invention. Although terms such as first, second, and third are used to describe various components in various embodiments of the present specification, these components should not be limited by such terms. These terms are used only to distinguish one component from another. The embodiments described and illustrated herein also include complementary embodiments thereof.

[0032] The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise. As used herein, the terms "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, operations, and / or elements to the mentioned components, steps, operations, and / or elements.

[0033] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in their common sense to those of ordinary skill in the art to which the present invention pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0034] Hereinafter, with reference to the drawings, the concept of the present invention and embodiments thereof will be described in detail.

[0035] FIG. 1 is a diagram showing the internal configuration of a rapid charger according to an embodiment of the present invention, FIG. 2 is a diagram for explaining the address board of FIG. 1, and FIG. 3 is a flowchart showing the entire data reading and writing of a charging module for charging an electric vehicle.

[0036] As illustrated in FIG. 1, a (rapid) charger (or charging device) (100) according to an embodiment of the present invention is a 60 kW rapid charger that exemplifies a case where an electric vehicle is charged at 35 kW using a 60 kW electric vehicle rapid charger, and includes a charging unit (110), a main board unit (or control unit) (120), an address board unit (or address (automatic) setting unit) (130), and an interface unit (140), and may further include a power supply unit (SMPS) or a charging voltage output unit.

[0037] Here, “including some or all” means that some components, such as a power supply unit or a charging voltage output unit, may be separated from the rapid charger (100) and configured as a separate device, or that charging modules constituting the charging unit (110) may be configured by being integrated into the main board unit (120) or the address board unit (130), and in order to help a sufficient understanding of the invention, it is described as including all.

[0038] A rapid charger (100) according to an embodiment of the present invention is a 60kW rapid charger, and can charge an electric vehicle (99) at 35kW through an address board for receiving AC 380V, 3-phase input power and controlling a charging module, two 30kW charging modules, and a coupler. Here, a coupler refers to a component used to exchange energy from one circuit to another, but can be used in various meanings. In other words, it can refer to a coupler that couples physically separate devices together. Of course, the embodiment of the present invention will not be particularly limited to such a concept.

[0039] More specifically, the charging unit (110) according to an embodiment of the present invention may be configured to include two or more charging modules, and may include a charging module capable of charging at a 30 kW level. For example, the charging module may operate independently or in a combination of two charging modules (e.g., series or parallel connection) to output power exceeding 30 kW in order to respond to various types (or product models) of electric vehicles (99). This allows it to respond to electric vehicles (99) that use various types of power. The internal configuration of the charging module will be examined in more detail later. Typically, power (P) can be expressed as the product of voltage (V) and current (I), but in an embodiment of the present invention, energy sources of electric vehicles such as voltage, current, and power may also be referred to as power.

[0040] The charging unit (110) outputs the charging voltage to the electric vehicle (99) through the charging voltage output unit (e.g., the charging terminal), but each charging module can be operated by the control of a processor such as a CPU, MPU, or GPU configured in the main board unit (120). In other words, the charging port of the electric vehicle (99) is electrically (or circuit-wise) connected to the charging terminal through a connector of a charging cable provided in the rapid charger (100), and in this case, the type or model or specification information of the electric vehicle (99) can be provided based on the device identification information of the electric vehicle (99) to determine what type of electric vehicle it is. Accordingly, the main board unit (120) can control at least one charging module so that power of an appropriate voltage or current is provided to the electric vehicle (99). It is possible to convert and output a low output into a high output without generating heat, etc., depending on the series or parallel operation of the charging module. The operation of converting low output to high output without generating heat or the like can be considered another technology according to an embodiment of the present invention other than automatically setting the address information of the charging module using an address board. Details regarding the charging module will be described in detail later.

[0041] In addition, the main board unit (120) includes a processor such as a CPU, MPU, GPU, etc., and can operate in conjunction with an interface unit (140), such as a communication interface unit, a user interface unit into which signals such as user commands are input, etc. For example, the main board unit (120) can receive various information related to the charging of the electric vehicle (99) of the user through a display unit equipped in a kiosk-type device constituting the rapid charger (100) or various types of devices. For example, when authentication is required for use of the rapid charger (100), an operation for authentication may be performed. For example, when a password is set, an input operation thereof may be performed. In addition, the interface unit (140) enables NFC (Near Field Communication) communication, so that an operation such as authentication or payment can be performed after a user of the electric vehicle (99) executes an application (hereinafter, “app”) using a smartphone, etc. carried by the user. The main board unit (120) can perform various operations in conjunction with the interface unit (140) and process data accordingly.

[0042] For example, when the main board (120) is linked with a monitoring device that monitors and manages rapid chargers (100) installed in various locations online, it may transmit data related to the operation of the rapid charger (100) to the monitoring device, such as a server such as a cloud server. A representative example of such monitoring operation may be a failure of the rapid charger (100). If a failure occurs, the operation of the rapid charger (100) may be stopped so that repairs can be performed. In addition, the real-time operation of the rapid charger (100) is monitored to predict failures. This can be done by analyzing the operation data of the rapid charger (100) through an artificial intelligence (AI) program installed on the server, and a prediction can be made based on the analysis results. Of course, for prediction, the server can learn various learning data and be trained, and then perform a prediction operation based on the learning results.

[0043] The address board unit (130) operates to automatically set addresses (information) for a plurality of charging modules constituting the charging unit (110). In FIG. 1, the address board unit (130) is illustrated as being connected only to the charging module of the charging unit (110). However, in reality, the address board unit (130) is preferably connected to the main board unit (120) as in FIG. 4, and it may also be configured in a form integrated into the main board unit (120). Typically, a board refers to a circuit board (e.g., PCB) and may also refer to a card-shaped substrate inserted into a slot. Accordingly, the main (or primary) board may be a main PCB, and the address board unit (130) may be a sub (or secondary) PCB.

[0044] The address board unit (130) according to an embodiment of the present invention can operate in a plug-and-play manner, as illustrated in FIG. 2, with either manual address setting or automatic address setting. Plug-and-play here means that the computer can be used immediately after power is connected to the plug, and is identical or similar to a function that allows a computer to be used immediately by simply plugging in the power without any additional operation by the user. Therefore, in an embodiment of the present invention, a separate procedure for specifying address information for the charging module may be unnecessary when inserting the charging module into the address board. The address board unit (130) can automatically set the address of the charging module, and the charging module can be inserted in any location. The address of the charging module can be automatically changed and set according to the address designation location of the address board. Of course, manual change is also possible, and thus the embodiment of the present invention is not particularly limited to any one method. For example, the address board designates location identification information (e.g., port number, etc.) as a default for a type of port into which the charging module is inserted, and thus the identification information for the charging module can be automatically specified based on this. Of course, the address board, like the main board, may include a processor, such as a CPU or MPU, to control and manage the address information of charging modules inserted in various locations. The operation of the address board will be further examined later.

[0045] FIG. 3 is a diagram for explaining the charging flow of data reading / writing of a charging module for charging from start to end of charging when charging an electric vehicle according to an embodiment of the present invention. Charging starts by checking the communication status and operating status of a voltage switch, a wattmeter, two 30 kW charging modules, and a power line communication (PLC) modem of a charger (100), and using the PLC modem to exchange initial information and authentication with the electric vehicle (99) and the charger, and then exchanging information on the maximum voltage and current of the charger (100), and then applying power to two charging modules for charging to prepare for charging. After powering on the charging module, the voltage / current applied between the electric vehicle (99) and the charger (100) is applied in stages of DC 800V / 5A, DC 800V / 15A, and DC 800V / 25A, and after checking the insulation during charging between the charger (100) and the electric vehicle (99), charging is started at DC 800V / 35A, and charging is completed when the preset charging completion condition is reached.

[0046] In addition to the above, the charging unit (110), main board (part) (120), address board (part) (130) and interface unit (140) of Fig. 1, and further, the power supply unit (SMPS) and charging voltage output unit will be continuously covered later, so detailed information will be replaced with those contents.

[0047] Fig. 4 is a configuration diagram of the address board of Fig. 1, and Fig. 5 is a circuit wiring diagram of the address board of Fig. 4.

[0048] The address board according to an embodiment of the present invention can be configured to automatically set four charging modules with one address board. Referring to the configuration diagram of the address board in Fig. 4 and the circuit wiring diagram in Fig. 5, the automatic charging module address setting method (or operation) in a plug-and-play manner capable of automatically recognizing the address of the charging module is used by the charging module being connected to the Main MCU (121) of the main board (sub-board) (120) of Fig. 1 via CAN communication, and the address board has a unique address for each port (e.g., 4, 8, 12, etc.), and the charging module connected to this port has the address provided by this port. Of course, the charging module does not have a unique address inside, and recognizes the address provided by the address board as its own unique address. Therefore, the connection address of the address board connected to the charging module becomes the unique address of the charging module, and this address is continuously transmitted periodically. Of course, the address information of a unique address can be configured and used in the form of 8-bit, 16-bit, etc. using binary bits of 1 and 0. This can be seen as operating according to a kind of communication protocol for data processing within the device.

[0049] To briefly explain the operating sequence, when the charger (100) of Fig. 1 is turned on, the charging module completes the initialization process, receives an address from the address board, recognizes it as its own address, and communicates (CAN) with the Main MCU (121). In order to use the charging module in the Main MCU (121), the address of the charging module for initialization is sent, and after initialization, the charging module is operated.

[0050] Figure 6 is a configuration diagram of a charging module that generates high output with multiple small outputs, and Figure 7 is a circuit wiring diagram (or circuit diagram) of a charging module that generates high output with multiple small outputs.

[0051] The charging module (110) according to an embodiment of the present invention includes a part or all of a PFC (Power Factor Correction) and rectifier (600), a DC-DC converter (610), a switch circuit (620), a control unit (630), and a communication device (or communication unit) (640). Here, “including a part or all” does not differ significantly from the meaning described above, so it will be replaced with those contents.

[0052] In an embodiment of the present invention, a charging module that generates high output with a large number of small outputs as shown in FIG. 6 can be used to increase the efficiency of power consumption of a charging device and control the target output in various ways, and this charging module can use a PFC circuit to supplement the loss occurring in the rectification process to improve three-phase AC. In a three-phase rectifier circuit at a three-phase AC input terminal, a DC voltage of positive power sources of (+) and (-) voltages is generated and used as a DC voltage provided to a DC-AC inverter and as a power source for driving a PFC.

[0053] The DC-DC converter (610) may be configured to include four DC-AC inverters (611) and a rectifier circuit (613) connected to the output terminals thereof, as illustrated in FIGS. 6 and 7. Of course, the DC-AC inverter (610) and the rectifier circuit (613) may be operated under the control of the control unit (630), and of course, when the control unit (630) is integrated into the main board (120) of FIG. 1, it may be controlled by a processor such as an MPU on the main board (120). Since the circuit configuration of the DC-AC inverter (611) and the rectifier circuit (613) is well illustrated in FIG. 7, the contents thereof will be replaced.

[0054] However, briefly, the DC-AC inverter (611) can be configured with a total of four inverters. And the first to fourth transformers can be connected to the output terminals of the inverters (611), respectively. The voltage and current input to the input of each transformer (612) can be output through a multi-stage output terminal, and the output voltage or current can be combined in series or parallel with each other by the switching circuit unit (620) after being rectified and then output. The specific connection relationship between the elements is intended to be replaced with the drawing of Fig. 7.

[0055] In an embodiment of the present invention, by distributing the load applied to the inverter (611) by using a plurality of inverters (611), the efficiency of the power used can be increased, and the heat generated from the inverter (611) can be minimized. That is, by applying a method of increasing the voltage or increasing the current through a series-parallel combination of rectified DC power obtained through low-voltage and low-current inverters (611), it is possible to configure a charging module capable of effectively controlling the voltage and current to obtain a target power.

[0056] Referring to FIG. 7, the charging module circuit and operation for generating high output with multiple small outputs according to an embodiment of the present invention will be examined in more detail. The first conversion circuit unit (700) inputs a positive constant voltage (+V) to the first inverter and the second inverter, respectively. DC ) is converted into AC voltage and current and then rectified to output the voltage and current of the first power, and the second conversion circuit (710) outputs the negative constant voltage (-V) input to the third inverter and the fourth inverter, respectively. DC) is converted into AC voltage and current and then rectified to output the voltage and rectification of the second power, and the switching circuit unit (620) can perform an operation of outputting a high voltage and high current higher than the voltage supplied from each small-power module by a series-parallel combination of the voltage and current of the first power and the voltage and current of the second power by operating the first conversion circuit unit (700) and the second conversion circuit unit (710) in series or parallel.

[0057] In other words, by distributing the load applied to the inverter using multiple inverters, the efficiency of the power used can be increased and the heat generated by the inverter can be minimized. This is achieved by applying a method of increasing the voltage or increasing the current through a series-parallel combination of rectified DC power obtained through low-voltage and low-current inverters, thereby effectively controlling the voltage and current to obtain the target power for charging the electric vehicle from the charging module.

[0058] As a result of the above configuration, according to an embodiment of the present invention, by using a plurality of inverters to distribute the load applied to the inverter, along with a plug-and-play charging module address automatic setting address that can automatically recognize the address of the charging module, the efficiency of the power used can be increased, the heat generated from the inverter can be minimized, and by using a charging module that can effectively control the voltage and current by applying a method of increasing the voltage or increasing the current through a series-parallel combination of rectified DC power obtained through inverters of low voltage and low current, a system can be implemented that maximizes the charging efficiency of an electric vehicle rapid charger while making operation control and maintenance flexible and convenient.

[0059] Figure 8 is a flowchart showing the process of charging an electric vehicle using a rapid charger.

[0060] For convenience of explanation, referring to FIG. 8 together with FIG. 1, first, whether the charger (100) is operable is checked (S800), and if there is no abnormality, the charger (100) authenticates the electric vehicle through CAN communication to check charging information (S801, S802). In this process, the charger (100) may also obtain charging information from the electric vehicle (99).

[0061] Next, the charger (100) turns on the power of the charging module for charging (ON) and sets the address to complete the charging information setting of the charging module and starts charging (S803 to S806).

[0062] During the charging process, the electric vehicle authentication process is verified, and when the set target power is reached, the charging module is turned off (OFF) and electric vehicle charging is terminated (S807 ~ S810).

[0063] Of course, when charging an electric vehicle, data reading / writing of the charging module for charging start / end can be performed. This has already been examined through Figure 3. Briefly, the charging start checks the communication status and operating status of the charger's voltage switch, wattmeter, two 30kW charging modules, and PLC modem, and uses the PLC modem to obtain initial information and authentication between the electric vehicle and the charger, and then exchanges information about the maximum voltage and current of the charger. After applying power to the charging modules, the voltage / current applied between the electric vehicle and the charger is applied in stages of DC 800V / 5A, DC 800V / 15A, and DC 800V / 25A, and the insulation between the charger and the electric vehicle is checked during charging. After starting charging at DC 800V / 35A, the charging is completed when the preset charging completion condition is reached.

[0064] Figure 9 is a flowchart showing a process of confirming target power and proceeding with charging through an address board and charging module according to an embodiment of the present invention.

[0065] For convenience of explanation, referring to FIG. 9 together with FIG. 1, when charging begins, the address board first designates the address of the charging module (e.g., received from the address board), and then receives the target power (voltage / current) for charging from, for example, the MCU configured on the main board (S900, S910). More precisely, it can be seen that target power information related to the target power is received from the MCU.

[0066] In addition, for example, the charging device (100) or the address board distributes the target power optimized for the low-power converter according to the received voltage / current, and determines the serial-parallel connection method for the DC output distributed to the power converter (S920, S930). Of course, with regard to the serial-parallel connection method, the setting can be made in advance through programming before using the address board or main board, and accordingly, when a specific condition (e.g., target power) is satisfied, the voltage / current can be distributed according to the default, that is, the preset method, and the method for the serial-parallel connection can be determined.

[0067] Furthermore, the charging device (100) connects a switching element (relay) according to the direct current output connection method of the determined power converter, generates a frequency and pulse width modulation (PWM) signal for setting the voltage / current assigned to the low-power converter, starts charging accordingly, and ends charging when the target power is charged (S940 to S970).

[0068] Of course, in this process, it is entirely possible to apply a lookup table (LUT) in the embodiment of the present invention. For example, if the (pre-)set voltage / current values ​​are input in the form of binary bits to the input terminal of the LUT, the output is stored by matching the control data of the frequency and PWM signal. Accordingly, the charging device (100) can control the low-power converter (e.g., see FIGS. 6 and 7) based on the control data of the frequency and PWM signal output from the LUT to start charging to reach the target power, and can end the charging operation when charging is complete.

[0069] In addition to the above, the charging device (100) according to the embodiment of the present invention including the address board can perform various operations, and other detailed information has been sufficiently explained above, so it will be replaced with that information.

[0070] Figure 10 is a flowchart showing the driving process of an electric vehicle charging device according to an embodiment of the present invention.

[0071] For convenience of explanation, referring to FIG. 10 together with FIG. 1, an electric vehicle charging device (100) according to an embodiment of the present invention operates multiple charging modules inserted into ports of a board, such as a rapid charging device, in a plug-and-play manner (S1000). Here, plug-and-play may mean that when a charging module is inserted into a board of an address automatic setting unit, a charging operation is performed by using the unique (identification) information of the inserted port, the port number, etc. as address information of the charging module inserted into the port.

[0072] In addition, the electric vehicle charging device (100) can recognize the address information automatically set by the address automatic setting unit, such as the address board, as its own address when charging of the electric vehicle starts, and operate at least one module among a plurality of charging modules to perform the charging operation of the electric vehicle (S1010). For example, each charging module inserted into the port can recognize the unique information of the port as its own address information and transmit the address information to a processor, such as a CPU or MPU, that controls the charging operation of the charging module. In addition, the processor can convert low power into high power above a standard by combining at least one of the plurality of charging modules in series or parallel based on the address information of the corresponding charging module, and charge the electric vehicle.

[0073] In addition to the above, the electric vehicle charging device (100) of FIG. 1 can perform various operations, and other detailed information has been sufficiently explained above, so it will be replaced with that information.

[0074] Meanwhile, even though all components constituting the embodiments of the present invention have been described as being combined or operating in combination, the present invention is not necessarily limited to such embodiments. That is, within the scope of the purpose of the present invention, all of the components may be selectively combined and operated one or more times. In addition, although all of the components may be implemented as individual independent hardware, some or all of the components may be selectively combined and implemented as a computer program having program modules that perform some or all of the functions of the combined hardware in one or more pieces. The codes and code segments constituting the computer program can be easily inferred by those skilled in the art of the present invention. Such a computer program may be stored in a non-transitory computer-readable storage medium and read and executed by a computer, thereby implementing the embodiments of the present invention.

[0075] Here, the non-transitory readable storage medium refers to a medium that permanently stores data and can be read by a device, rather than a medium that stores data for a short period of time, such as a register, cache, or memory. Specifically, the above-described programs may be stored and provided on a non-transitory readable storage medium, such as a CD, DVD, hard disk, Blu-ray disc, USB, memory card, or ROM.

[0076] Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and various modifications may be made by those skilled in the art without departing from the spirit or scope of the present invention as claimed in the claims. Furthermore, such modifications should not be understood individually from the technical idea or prospect of the present invention.

Claims

1. An address automatic setting unit that operates multiple charging modules inserted into a port in a plug and play manner; and A charging unit configured to include the above-mentioned plurality of charging modules, and to recognize the address information automatically set by the address automatic setting unit as a self-address when charging of the electric vehicle begins, and to operate at least one module among the above-mentioned plurality of charging modules to perform a charging operation; including, The above charging unit is an electric vehicle charging device using an address automatic setting charging module that uses the unique identification information designated to the port as the address information.

2. In paragraph 1, An electric vehicle charging device using an address automatic setting charging module, further comprising a control unit for determining power distribution and serial and parallel connection methods using the plurality of charging modules based on target power information related to the target power for the charging when the charging starts, and controlling the plurality of charging modules according to the determined result.

3. In paragraph 1, An electric vehicle charging device using an address automatic setting charging module, wherein the charging unit includes a communication unit that receives unique identification information assigned to each port for each charging module from the address automatic setting unit and transmits it to the control unit.

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