Electric vehicle charging apparatus with dc-dc converter for fire prevention and disaster response

Abstract

The present invention comprises: a charging housing; a charging module located inside the charging housing and configured to receive power from an external power source, convert the received power, and supply it to the charging coupler; a charging coupler that penetrates the charging housing, is connected to the charging module, and is configured to supply power to a connected electric vehicle; a control unit located inside the charging housing and configured to control the operation of the charging module; a display unit installed outside the charging housing and configured to transmit and receive information with the control unit; a first temperature sensor configured to measure the internal temperature of the charging housing and transmit the measured temperature to the control unit; a second temperature sensor configured to measure the temperature of the charging module and transmit the measured temperature to the control unit; and a third temperature sensor configured to measure the temperature of the charging coupler and transmit the measured temperature to the control unit; a display unit configured to transmit and receive information with the control unit; and a first humidity sensor configured to measure the internal humidity of the charging housing and transmit the measured humidity to the control unit. The electric vehicle charging device is configured to include, and when any one of the temperature measured by the first temperature sensor, the temperature measured by the second temperature sensor, the temperature measured by the third temperature sensor, and the humidity measured by the first humidity sensor exceeds a preset reference temperature / humidity, the control unit stops the charging module from outputting power and outputs information on the suspension of the charging module to the display unit.

Description

Technology Field

[0001] The present invention relates to an electric vehicle charging device, and more specifically, to an electric vehicle charging device that includes a fire prevention function and a disaster response function and charges an electric vehicle. Background Technology

[0002] With the recent tightening of environmental regulations and the spread of eco-friendly policies, the adoption of electric vehicles (EVs) is increasing rapidly, leading to a significant expansion in the installation and use of EV charging facilities. EV charging devices are being installed in various forms, ranging from home slow chargers to fast chargers in public places, and the number of charging stations and charging speeds are continuously being improved to enhance the convenience of EV users.

[0003] As the adoption of electric vehicle charging devices expands, user awareness of safety issues such as overheating, short circuits, and fires that may occur during the charging process is growing. Electric vehicle charging devices pose problems such as the risk of fire due to excessive heat generation during charging and the possibility of safety accidents caused by electrical defects, making the assurance of safety an urgent task. Continuous research and development is being conducted to address these safety issues. The problem to be solved

[0004] The problem to be solved by the present invention is to provide an electric vehicle charging device that prevents fire by measuring the temperature and humidity of the main components.

[0005] In particular, the problem that the present invention aims to solve is to provide an electric vehicle charging device capable of responding to a disaster by receiving disaster information.

[0006] The problems to be solved through the various embodiments of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0007] To solve the above problem, the technical concept of the present invention comprises: a charging housing; a charging module located inside the charging housing and configured to receive power from an external power source, convert the received power, and supply it to the charging coupler; a charging coupler configured to penetrate the charging housing, connect to the charging module, and supply power to the connected electric vehicle; a control unit located inside the charging housing and configured to control the operation of the charging module; a display unit installed outside the charging housing and configured to transmit and receive information with the control unit; a first temperature sensor configured to measure the internal temperature of the charging housing and transmit the measured temperature to the control unit; a second temperature sensor configured to measure the temperature of the charging module and transmit the measured temperature to the control unit; a third temperature sensor configured to measure the temperature of the charging coupler and transmit the measured temperature to the control unit; and a first humidity sensor configured to measure the internal humidity of the charging housing and transmit the measured humidity to the control unit. The electric vehicle charging device includes, and when any one of the temperature measured by the first temperature sensor, the temperature measured by the second temperature sensor, the temperature measured by the third temperature sensor, and the humidity measured by the first humidity sensor exceeds a preset reference value (reference temperature / reference humidity), the control unit stops the charging module from outputting power and outputs information about the suspension of the charging module to the display unit, and is configured to operate normally when it becomes below the reference value after a certain period of time.

[0008] In addition, it provides an electric vehicle charging device configured to prevent safety accidents in advance by responding according to the level of disaster when the management server (CSMS) managing the electric vehicle charging device receives emergency disaster text messages from relevant agencies.

[0009] Specific details of other embodiments are included in the detailed description and drawings. Effects of the invention

[0010] An electric vehicle charging device according to the technical concept of the present invention can prevent fire caused by overheating by measuring the temperature and humidity of each component.

[0011] A management server (CSMS) managing an electric vehicle charging device according to the technical concept of the present invention provides disaster information to users and electric vehicle charging devices, and can prevent safety accidents occurring in disaster situations.

[0012] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0013] FIG. 1 is a diagram schematically showing an environment in which an electric vehicle charging device according to one embodiment of the present invention is used. FIG. 2 is a perspective view schematically illustrating a charging coupler according to one embodiment of the present invention. FIG. 3 is a block diagram schematically illustrating an electric vehicle charging device according to one embodiment of the present invention. FIG. 4 is a circuit diagram schematically illustrating a charging module according to one embodiment of the present invention. FIG. 5 is a schematic diagram showing a screen output to a display unit of an electric vehicle charging device according to one embodiment of the present invention. FIG. 6 is a conceptual diagram schematically illustrating an electric vehicle charging device according to one embodiment of the present invention. FIG. 7 is a block diagram schematically illustrating a method in which an electric vehicle charging device according to one embodiment of the present invention responds to disaster information. FIG. 8 is a schematic diagram showing a screen output to a display unit of an electric vehicle charging device according to one embodiment of the present invention. Specific details for implementing the invention

[0014] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0015] The embodiments described herein will be described with reference to cross-sectional and / or plan views, which are exemplary illustrations of the invention. In the drawings, the thicknesses of films and regions are exaggerated for effective description of the technical content. Accordingly, the regions illustrated in the drawings are schematic in nature, and the shapes of the regions illustrated in the drawings are intended to illustrate specific forms of regions of the device and are not intended to limit the scope of the invention. Although terms such as first, second, third, etc., have been used to describe various components in the various embodiments of this specification, these components should not be limited by such terms. These terms are used merely to distinguish one component from another. The embodiments described and illustrated herein also include their complementary embodiments.

[0016] The terms used herein are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, actions, and / or elements to the mentioned components, steps, actions, and / or elements.

[0017] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled 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. Hereinafter, the concept of the present invention and embodiments thereof will be described in detail with reference to the drawings.

[0018] FIG. 1 is a schematic diagram showing an environment in which an electric vehicle charging device (100) according to an embodiment of the present invention is used. FIG. 2 is a perspective view schematically showing a charging coupler (120) according to an embodiment of the present invention. FIG. 3 is a block diagram schematically showing an electric vehicle charging device (100) according to an embodiment of the present invention. FIG. 4 is a circuit diagram schematically showing a charging module (130) according to an embodiment of the present invention. FIG. 5 is a schematic diagram showing a screen output to a display unit (150) of an electric vehicle charging device (100) according to an embodiment of the present invention.

[0019] FIG. 6 is a conceptual diagram schematically showing an electric vehicle charging device (100) associated with a disaster management department according to one embodiment of the present invention. FIG. 7 is a block diagram schematically showing a method in which an electric vehicle charging device (100) according to one embodiment of the present invention responds to disaster information. FIG. 8 is a diagram schematically showing a screen output to a display unit (150) of an electric vehicle charging device (100) according to one embodiment of the present invention.

[0020] Referring to FIG. 1, an electric vehicle charging device (100) can receive power from a power source (PS) and supply power to an electric vehicle (EV). The power source (PS) is a power source that supplies power, such as a power plant or ESS, and supplies power to the electric vehicle charging device (100) through a power supply line (PS_W). By connecting the charging coupler (120) of the electric vehicle charging device (100) to an electric vehicle (EV) parked near the electric vehicle charging device (100), the electric vehicle charging device (100) can supply power to the electric vehicle (EV).

[0021] For example, a user who wishes to charge an electric vehicle (EV) through an electric vehicle charging device (100) can pay the charging fee and proceed with charging by using the display unit (150) of the electric vehicle charging device (100). For example, when the procedure for paying the charging fee is performed by the user, the electric vehicle charging device (100) can supply power to the electric vehicle (EV) through the connected charging coupler (120). The power supplied by the electric vehicle charging device (100) is measured by an accumulating power circuit installed inside the electric vehicle charging device (100). Some embodiments according to the present disclosure assume that the accumulating power circuit is electronic, but are not limited thereto, and it is also possible to use an electromagnetic accumulating power circuit.

[0022] For example, the electric vehicle charging device (100) can convert power provided from a power source (PS) to match the rated voltage of the electric vehicle (EV) connected to the electric vehicle charging device (100). For example, when the electric vehicle charging device (100) performs slow charging, it can lower the voltage of the alternating current provided from the power source (PS) and provide it to the electric vehicle (EV). For example, when the electric vehicle charging device (100) performs fast charging, it can convert the alternating current provided from the power source (PS) into direct current and provide it to the electric vehicle (EV).

[0023] Referring to FIGS. 2 through 8, the electric vehicle charging device (100) may include a charging housing (110), a charging coupler (120), a charging module (130), a control unit (140), a display unit (150), a first temperature sensor (111), a second temperature sensor (131), and a third temperature sensor (122). The electric vehicle charging device (100) may further include a first humidity sensor (112).

[0024] The charging housing (110) forms the exterior of the electric vehicle charging device (100) and can protect the charging module (130), control unit (140), first temperature sensor (111), second temperature sensor (131), and first humidity sensor (112) located inside from the outside or fire.

[0025] For example, the display unit (150) is installed outside the charging housing (110), so that the screen of the display unit (150) can be exposed to the outside. The display unit (150) is connected to the control unit (140) to transmit and receive information. In some embodiments, the display unit (150) can recognize touch. For example, the display unit (150) is an input / output device and can not only output information received from the control unit (140) through the screen, but also transmit information received via touch to the control unit (140).

[0026] For example, the display unit (150) can receive information regarding the charging status, charging speed, charging progress time, and time remaining until full charge from the control unit (140) and display it on the screen. In some embodiments, the control unit (140) transmits information regarding the interruption of the charging module (130) (150_H) and a guidance message (150_D) regarding disaster information to the display unit (150), and the display unit (150) can display the information regarding the interruption of the charging module (130) (150_H) and the guidance message (150_D) regarding disaster information on the screen.

[0027] The charging coupler (120) can pass through the charging housing (110) and be connected to the charging module (130). Referring to FIG. 2, the charging coupler (120) may include a cable (123) connected to the charging module (130) and a connector (121) connected to the cable (123) and configured to be inserted into an electric vehicle (EV).

[0028] In some embodiments, power to the charging coupler (120) may be supplied or cut off through a relay or switch included in the charging module (130). For example, the control unit (140) stopping the charging module (130) from outputting power may mean controlling a switch or relay so that the charging module (130) cuts off power to the charging coupler (120).

[0029] In some embodiments, two or more charging couplers (120) may be attached to a single charging housing (110). For example, the electric vehicle charging device (100) is a dual charging device that includes multiple charging couplers (120) and can charge multiple electric vehicles (EVs) simultaneously.

[0030] In some embodiments, the charging coupler (120) may be configured to correspond to international standards. For example, the charging coupler (120) may correspond to at least one of various charging standards, such as AC 5-pin (e.g., SAE J1772), AC 7-pin (e.g., Mennekes), DC Combo, DC CHAdeMO, and AC 3-phase.

[0031] The charging module (130) is located inside the charging housing (110) and can receive power from a power source (PS) and transmit power to the charging cable (123). For example, the charging module (130) can be operated by the control unit (140).

[0032] In some embodiments, referring to FIG. 4, the charging module (130) may include a rectifier (132), a Power Factor Correction (PFC) circuit (133), and a DC-DC converter (134). The charging module (130) may receive three-phase AC input and convert it into DC.

[0033] For example, the rectifier (132) can be connected to the three-phase AC to convert the AC into DC. The PFC circuit (133) can detect the DC converted by the rectifier and improve the power factor for the three-phase AC. The DC-DC converter (134) is connected to the PFC circuit (133) and can adjust the voltage of the DC output from the PFC circuit (133). However, the DC-DC converter (134) may be one of a forward converter and a full-bridge converter.

[0034] In some embodiments, the DC-DC converter (134) of the charging module (130) may further include a plurality of DC-AC inverters, a transformer located after the plurality of inverters, and a switch circuit located after the rectifier circuit. Through the DC-DC converter (134) including a plurality of DC-AC inverters, a transformer, and a switch circuit, the charging module (130) can produce high output from a plurality of low outputs.

[0035] In some embodiments, the DC-DC converter (134) may include a first conversion circuit comprising a first DC-AC inverter, a second DC-AC inverter, a first transformer, and a second transformer, and a second conversion circuit comprising a third DC-AC inverter, a fourth DC-AC inverter, a third transformer, and a fourth transformer. The first conversion circuit is input to a positive constant voltage (+V) to the first DC-AC inverter and the second DC-AC inverter, respectively. DC The voltage and current of the first power can be output by converting the ) into AC voltage and current and then rectifying it. The second conversion circuit receives the negative constant voltage (-V) input to the third DC-AC inverter and the fourth DC-AC inverter, respectively. DC After converting ) into alternating current and current, it can be rectified to output the voltage and rectified second power.

[0036] The switching circuit unit can operate 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 the voltage supplied by each low-power module through a series-parallel combination of the voltage and current of the first power and the voltage and current of the second power.

[0037] In some embodiments, a charging module (130) using a plurality of DC-AC inverters and switching circuits can increase efficiency for power usage by reducing the load applied to each DC-AC inverter and minimize heat generated in each inverter.

[0038] In other words, by applying a method to increase the voltage or increase the current through a series-parallel combination of rectified DC power obtained from low-voltage and low-current inverters, it becomes possible to configure a charging module capable of effectively controlling the voltage and current to obtain the target power.

[0039] The control unit (140) is located inside the charging housing (110) and can control the operation of the charging module (130). For example, the control unit (140) can transmit and receive information with the input / output device of the electric vehicle charging device (100). For example, the control unit (140) can receive information from the outside through the communication unit (160), the display unit (150), and the payment unit (170), and output information through the communication unit (160) and the display unit (150).

[0040] The payment unit (170), display unit (150), and communication unit (160) may be electrically connected to the control unit (140). The payment unit (170) may perform payment for costs incurred by a user of the electric vehicle charging device (100) and, depending on the required embodiment, may include a configuration for performing payment, such as a card reader, an RFID recognition module, an NFC module, etc. The display unit (150) may display information related to charging, such as the charging amount requested by the user, the current charging amount, and the billing fee, on a screen. The communication unit (160) performs communication related to charging.

[0041] For example, when the payment unit (170) receives credit card information, the communication unit (160) can perform communication with the credit card company to proceed with payment. Depending on the case, the remaining time until charging and the expected charges may also be displayed on the screen of the display unit (150), taking into account the charging amount requested by the user and the current charging amount. Here, the expected charges may be calculated differently depending on the vehicle (e.g., medium-sized car, small car).

[0042] The payment unit (170), display unit (150), and communication unit (160) may include other well-known configurations that may be associated with the power supply of the electric vehicle charging device (100) and may perform associated functions.

[0043] The control unit (140) can receive information from the first temperature sensor (111), the second temperature sensor (131), and the third temperature sensor (122). The first temperature sensor (111) can measure the internal temperature of the charging housing (110) and transmit the measured internal temperature of the charging housing (110) to the control unit (140). The second temperature sensor (131) can measure the temperature of the charging module (130) and transmit the temperature of the charging module (130) to the control unit (140). The third temperature sensor (122) can measure the temperature of the charging coupler (120) and transmit the measured temperature of the charging coupler (120) to the control unit (140). In some embodiments, the third temperature sensor (122) is located at the connector (121) of the charging coupler (120) and can measure the temperature of the connector (121). The first humidity sensor (112) can measure the humidity inside the charging housing (110) and transmit the measured humidity inside the charging housing (110) to the control unit (140).

[0044] A first reference temperature corresponding to the first temperature sensor (111), a second reference temperature corresponding to the second temperature sensor (131), a third reference temperature corresponding to the third temperature sensor (122), and a first reference humidity corresponding to the first humidity sensor (112) may be pre-set in the control unit (140). The control unit (140) may compare the temperature measured by the first temperature sensor (111) with the first reference temperature, compare the temperature measured by the second temperature sensor (131) with the second reference temperature, compare the temperature measured by the third temperature sensor (122) with the third reference temperature, and compare the humidity measured by the first humidity sensor (112) with the first reference humidity.

[0045] The control unit (140) may stop the charging module (130) from outputting power when at least one of the temperature measured by the first temperature sensor, the temperature measured by the second temperature sensor (131), the temperature measured by the third temperature sensor (122), and the humidity measured by the first humidity sensor exceeds a corresponding reference value (reference temperature or reference humidity).

[0046] Specifically, the control unit (140) may stop the charging module (130) from outputting power if the temperature measured by the first temperature sensor (111) exceeds the first reference temperature, the temperature measured by the second temperature sensor (131) exceeds the second reference temperature, the temperature measured by the third temperature sensor (122) exceeds the third reference temperature, or the humidity measured by the first humidity sensor (112) exceeds the first reference humidity.

[0047] If the temperature measured by the first temperature sensor (111) transmitted to the control unit (140) (i.e., the temperature inside the charging housing (110)) exceeds the first reference temperature previously set in the control unit (140), the control unit (140) can stop the charging module (130) from supplying power to the charging cable (123) to prevent a fire.

[0048] If the temperature measured by the second temperature sensor (131) transmitted to the control unit (140) (i.e., the temperature of the charging module (130)) exceeds the second reference temperature previously set in the control unit (140), the control unit (140) can stop the charging module (130) from supplying power to the charging cable (123) to prevent a fire.

[0049] If the temperature measured by the third temperature sensor (122) transmitted to the control unit (140) (i.e., the temperature of the charging cable (123)) exceeds the third reference temperature previously set in the control unit (140), the control unit (140) can stop the charging module (130) from supplying power to the charging cable (123) to prevent a fire.

[0050] If the humidity measured by the first humidity sensor (112) transmitted to the control unit (140) (i.e., humidity inside the charging housing (110)) exceeds the first reference humidity previously set in the control unit (140), the control unit (140) can stop the charging module (130) from supplying power to the charging cable (123) to prevent a fire.

[0051] In some embodiments, a first reference temperature, a second reference temperature, a third reference temperature, and a first reference humidity may be individually set in the control unit (140). The first reference temperature, the second reference temperature, the third reference temperature, and the first reference humidity set in the control unit (140) may be changed. For example, an administrator may change the first reference temperature, the second reference temperature, the third reference temperature, and the first reference humidity set in the control unit (140) through the communication unit (160). For example, the first reference temperature, the second reference temperature, and the first reference humidity may be adjusted according to the temperature of the environment in which the electric vehicle charging device (100) is installed. For example, the first reference temperature, the second reference temperature, the third reference temperature, and the first reference humidity may be adjusted according to the season.

[0052] For example, the first reference temperature may be 55 degrees Celsius, the second reference temperature may be 55 degrees Celsius, the third reference temperature may be 100 degrees Celsius, and the first reference humidity may be 90%. However, this is not limited thereto, and the first reference temperature, the second reference temperature, the third reference temperature, and the first reference humidity may vary depending on the environment in which the electric vehicle charging device (100) is installed.

[0053] When at least one of the temperature measured by the first temperature sensor (111), the temperature measured by the second temperature sensor (131), the temperature measured by the third temperature sensor (122), and the humidity measured by the first humidity sensor (112) exceeds a corresponding reference value and the charging module (130) stops operating, the control unit (140) can output the interruption information (150_H) of the charging module (130) to the display unit (150). By outputting the interruption information to the screen of the display unit (150), the control unit (140) can convey the information to the user of the electric vehicle charging device (100), thereby increasing the user's convenience.

[0054] The interruption information (150_H) may include information about a configuration in which a temperature / humidity sensor has measured a temperature / humidity exceeding a reference temperature / humidity among the first temperature sensor (111), second temperature sensor (131), third temperature sensor (122), and first humidity sensor (112). For example, the interruption information (150_H) may include information about an overheated configuration.

[0055] In some embodiments, when at least one of the temperature measured by the first temperature sensor (111), the temperature measured by the second temperature sensor (131), the temperature measured by the third temperature sensor (122), and the humidity measured by the first humidity sensor (112) exceeds a reference value and the charging module (130) is interrupted, the control unit (140) can restart the charging module (130) after a certain period of time has elapsed.

[0056] In some embodiments, when the charging module (130) is interrupted because at least one of the temperature measured by the first temperature sensor (111), the temperature measured by the second temperature sensor (131), the temperature measured by the third temperature sensor (122), and the humidity measured by the first humidity sensor (112) exceeds a reference value, the control unit (140) can restart the charging module (130) when the temperature measured by the first temperature sensor (111), the temperature measured by the second temperature sensor (131), the temperature measured by the third temperature sensor (122), and the humidity measured by the first humidity sensor (112) all fall below the restart temperature / humidity.

[0057] Referring to FIG. 5, [A1] of FIG. 5 is a screen of a display unit (150) where interruption information (150_H) is output when the temperature measured by the first temperature sensor (111) exceeds the first reference temperature, [A2] of FIG. 5 is a screen of a display unit (150) where interruption information (150_H) is output when the temperature measured by the second temperature sensor (131) exceeds the second reference temperature, [A3] is a screen of a display unit (150) where interruption information (150_H) is output when the temperature measured by the third temperature sensor (122) exceeds the third reference temperature, and [A4] of FIG. 5 is a screen of a display unit (150) where interruption information (150_H) is output when the humidity measured by the first humidity sensor (112) exceeds the first reference humidity.

[0058] When the control unit (140) stops the output of the charging module (130) because the temperature measured by the first temperature sensor (111) exceeds the first reference temperature, the interruption information (150_H) output to the display unit (150) may include the phrase "internal temperature overheating." When the control unit (140) stops the output of the charging module (130) because the temperature measured by the second temperature sensor (131) exceeds the second reference temperature, the interruption information (150_H) output to the display unit (150) may include the phrase "charging module overheating." When the control unit (140) stops the output of the charging module (130) because the temperature measured by the third temperature sensor (122) exceeds the third reference temperature, the interruption information (150_H) output to the display unit (150) may include the phrase "charging coupler overheating." When the humidity measured by the first humidity sensor (112) exceeds the first reference humidity and the output of the charging module (130) is interrupted, the interruption information (150_H) displayed on the display unit (150) may include the phrase "internal humidity overheating."

[0059] However, the text included in the interruption information (150_H) displayed on the screen of the display unit (150) is not limited to this and may be changed according to the configuration measured by each temperature / humidity sensor.

[0060] In some embodiments, a unified firmware may be installed in the control unit (140) regardless of the capacity of the charging module (130). For example, the charging module (130) may include multiple 30kW modules. The control unit (140) may be equipped with operable firmware regardless of the number of modules included in the charging module (130). For example, if the same firmware is installed in the control unit (140) regardless of the capacity of the charging module (130), the initial setup or repair of the electric vehicle charging device (100) may be easy.

[0061] In some embodiments, the control unit (140) may temporarily store information regarding charging information in a temporary memory when the communication unit (160) loses communication with the management server (200). For example, the control unit (140) may store charging information in a temporary memory so that there is no problem with the charging of the electric vehicle (EC) even when the communication unit (160) loses information exchange with the management server (200). Subsequently, when the communication unit (160) regains connection with the management server (200), the control unit (140) may transmit the payment information stored in the temporary memory to the management server (200).

[0062] In some embodiments, the control unit (140) may include various language packs. For example, the control unit (140) may provide information to be output to the display unit (150) in various languages. For example, the control unit (140) may output information to be output to the display unit (150) in various languages ​​such as English, Chinese, Japanese, and Korean.

[0063] The communication unit (160) is located inside the charging housing (110) and can receive information from the outside and transmit the information to the control unit (140). For example, the electric vehicle charging device (100) can receive disaster information from an external management server (200) through the communication unit (160).

[0064] For example, the communication unit (160) can support the establishment of a wired communication channel between the electric vehicle charging device (100) and another external device (e.g., a user device, or an external server), the establishment of a wireless communication channel, and the performance of communication through the established communication channel. The communication unit (160) may include one or more communication processors that support wireless communication and / or wired communication. The communication unit (160) can perform operations such as modulation / demodulation of information and encryption / decryption during the process of performing communication between the electric vehicle charging device (100) and an external management server (200).

[0065] In some embodiments, the communication unit (160) may include at least some communication modules among a wireless communication module (e.g., cellular communication module, short-range wireless communication module, GNSS (global navigation satellite system) communication module) and a wired communication module (e.g., LAN (local area network) communication module, or power line communication module).

[0066] In some embodiments, the communication unit (160) can communicate with an external device via a short-range communication network such as Bluetooth, BLE (Bluetooth Low Energy), WiFi, WiFi direct, IrDA (infrared data association), ZigBee, UWB, RF (Radio Frequency) and / or a long-range communication network such as a cellular network, the Internet, or a computer network (e.g., LAN or WAN).

[0067] Various types of communication modules constituting the communication unit (160) may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips).

[0068] In some embodiments, an electric vehicle charging device (100) or a management server (200, CSMS) may receive information regarding a disaster situation occurring domestically from relevant agencies through a communication unit (160). For example, the communication unit (160) may receive disaster information from the management server (200, CSMS) via emergency disaster text messages, etc. The relevant agencies for emergency disaster text messages may be government ministries (300) such as the Ministry of the Interior and Safety, the Korea Meteorological Administration, and local governments. Emergency disaster text messages may include information regarding the location where the disaster occurs, the type of disaster that occurred, and the level of the disaster that occurred.

[0069] In some embodiments, the electric vehicle charging device (100) may receive disaster information directly from a government department (300), or the disaster information transmitted by the government department (300) may be received by a management server (200, CSMS).

[0070] For example, an emergency disaster message may include a unique code depending on the type of disaster, the level of the disaster, and the number of times the message was sent regarding the disaster. The unique code of an emergency disaster message may consist of three digits, where the first digit represents the type of disaster, the second digit represents the level of the disaster, and the third digit represents the number of times the message was sent regarding the disaster.

[0071] For example, in the case of an emergency disaster text message for a flood, the first digit of the unique code is 1, in the case of an emergency disaster text message for an earthquake, the first digit of the unique code is 2, in the case of an emergency disaster text message for a strong wind / typhoon, the first digit of the unique code is 3, in the case of an emergency disaster text message for a war / emergency, the first digit of the unique code is 4, and in the case of an emergency disaster text message for a power problem, the first digit of the unique code may be 5 or 6.

[0072] For example, if the level of the disaster is an emergency disaster text message, the second digit of the unique code is 1, if the level of the disaster is an emergency disaster text message, the second digit of the unique code is 2, if the level of the disaster is an emergency disaster text message, the third digit of the unique code is 3, and if the level of the disaster is an emergency disaster text message, the third digit of the unique code is 4.

[0073] For example, as the number of transmissions for a disaster increases, the third digit of the unique code of the emergency disaster message may increase. For example, if the number of transmissions for a disaster is 3, the third digit of the unique code of the emergency disaster message may be 3. If the number of transmissions for a disaster is 5, the third digit of the unique code of the emergency disaster message may be 5.

[0074] For example, if the disaster that occurred is an emergency level flood, the unique code for the fourth emergency disaster text message sent for that disaster may be 114. The disaster information received by the communications department (160) from the management server (200, CSMS) or the government department (300) may include the unique code of the emergency disaster text message.

[0075] Referring to FIG. 7, the method of responding to a disaster in the event of an electric vehicle charging device (100) will be explained.

[0076] The communication unit (160) can receive disaster information including a unique code of an emergency disaster text message and transmit the disaster information to the control unit (140). The control unit (140) can analyze the disaster type and disaster level from the disaster information received from the communication unit (160).

[0077] The control unit (140) can classify the disaster information into high, medium, and low levels according to the level of the disaster. For example, the control unit (140) can classify the occurrence of a disaster into high, medium, and low based on the second digit of the unique code of the emergency disaster character.

[0078] In some embodiments, the control unit (140) may classify the disaster information as high if the second digit of the unique code of the emergency disaster character included in the disaster information is 1 or 2, classify the disaster information as medium if the second digit of the unique code of the emergency disaster character included in the disaster information is 3, and classify the disaster information as low if the second digit of the unique code of the emergency disaster character included in the disaster information is 4.

[0079] The control unit (140) can classify the disaster information into a special disaster type and a general disaster type depending on the type of disaster. For example, the control unit (140) can determine whether the disaster that occurred is a special disaster type or a general disaster type based on the first digit of the unique code of the emergency disaster text.

[0080] For example, the control unit (140) can determine that the disaster information is a special disaster type if the first digit of the unique code of the emergency disaster character included in the disaster information is 4. The control unit (140) can determine that the disaster information is a general disaster type if the first digit of the unique code of the emergency disaster character included in the disaster information is a number other than 4.

[0081] The control unit (140) may stop the charging module (130) from outputting power when disaster information is classified as high or medium. For example, the control unit (140) may stop the charging module (130) from transmitting power to the charging cable (123). For example, when an electric vehicle (EV) is being charged in the electric vehicle charging device (100), the control unit (140) may stop the charging module (130) from supplying power so that the charging of the electric vehicle (EV) is stopped. For example, when the electric vehicle charging device (100) is in a standby state where the electric vehicle (EV) is not being charged, the operation of the charging module (130) may be controlled so that the charging of the electric vehicle (EV) does not start.

[0082] The control unit (140) can restart the charging module (130) that was suspended due to disaster information when it receives a restart (safety or termination) signal through the communication unit (160) or through the display unit (150). For example, the restart (safety or termination) signal may be a command given by the manager or user of the electric vehicle charging device (100) to restart the charging module (130). For example, the manager can transmit the restart signal to the control unit (140) through the communication unit (160), and the user can transmit the restart signal to the control unit (140) through the display unit (150).

[0083] For example, when disaster information is classified as severe and the control unit (140) has stopped the charging module (130), if the control unit (140) receives a restart signal through the communication unit (160) or the display unit (150), the control unit (140) can switch the charging module (130) to an output-capable state. For example, if the electric vehicle charging device (100) stops charging because disaster information is classified as severe, an administrator or user can restart the electric vehicle charging device (100).

[0084] For example, when disaster information is determined to be a general disaster type and classified as a disaster, and the control unit (140) has stopped the charging module (130), if the control unit (140) receives a restart signal through the communication unit (160), the control unit (140) can switch the charging module (130) to an output-capable state. For example, if the electric vehicle charging device (100) stops charging because the disaster information is classified as a disaster and the disaster information is determined to be a general disaster type, only the administrator can restart the electric vehicle charging device (100).

[0085] For example, when disaster information is determined to be a special disaster type and classified as a disaster, and the control unit (140) has stopped the charging module (130), if the control unit (140) receives a restart signal through the communication unit (160) or the display unit (150), the control unit (140) can switch the charging module (130) to a state where it can be output. For example, when disaster information is classified as a disaster and the disaster information is determined to be a special disaster type, and the electric vehicle charging device (100) has stopped charging, not only the manager but also the user can restart the electric vehicle charging device (100).

[0086] In the event of a special type of disaster, users can be enabled to emergency charge an electric vehicle (EV) or unlock an electric vehicle (EV) that is currently being charged, thereby facilitating the evacuation of users in disaster situations.

[0087] The control unit (140) can determine and classify disaster information and output the disaster information to the display unit (150). The control unit (140) determines and classifies disaster information, and if the charging module (130) is stopped, it can also output the stop information to the display unit (150).

[0088] The control unit (140) can output a guidance message (150_D) regarding disaster information to the display unit (150) according to the disaster level and disaster type of the disaster information. For example, the control unit (140) can output different guidance messages (150_D) to the display unit (150) depending on the disaster level and disaster type.

[0089] Referring to FIG. 8, [B1] is a screen of a display unit (150) where a disaster emergency guidance message is displayed when the disaster information is classified as a general disaster type (emergency) and high, [B2] is a screen of a display unit (150) where a disaster emergency guidance message is displayed when the disaster information is classified as a special disaster type (urgent) and high, [B3] is a screen of a display unit (150) where a disaster warning guidance message is displayed when the disaster information is classified as medium (warning), and [B4] is a screen of a display unit (150) where a disaster caution guidance message is displayed when the disaster information is classified as low (caution).

[0090] By comparing [B1] of FIG. 8 with [B2] of FIG. 8, it can be seen that disaster information is classified as a general disaster type or a special disaster type, and accordingly, the guidance message (150_D) changes. For example, in the case of a general disaster type, the guidance message (150_D) may include a phrase stating that the use of the electric vehicle charging device (100) is controlled by an administrator (e.g., by contacting the customer center). In the case of a special disaster type, the guidance message (150_D) may include a phrase stating that the use of the electric vehicle charging device (100) is possible via input (touch) through the display unit (150). The phrases shown in FIG. 8 are merely examples, and the phrases included in the guidance message (150_D) are not limited thereto.

[0091] Referring to [B1], [B3], and [B3] of FIG. 8, it can be seen that disaster information is classified into one of high, medium, and low levels according to the disaster level, and the guidance message (150_D) changes accordingly. For example, if the disaster information is classified as high, the guidance message (150_D) may include the phrase "Disaster Emergency / Urgent Notice," if the disaster information is classified as medium, the guidance message (150_D) may include the phrase "Disaster Warning Notice," and if the disaster information is classified as low, the guidance message (150_D) may include the phrase "Disaster Caution Notice." However, the phrase included in the guidance message (150_D) according to the classification of the disaster information is not limited to this, and may be a phrase that distinguishes the severity of the disaster.

[0092] In some embodiments, the control unit (140) may further analyze the disaster location from the disaster information. For example, the control unit (140) may compare the disaster location with the location of the electric vehicle charging device (100), and if the distance between the disaster location and the electric vehicle charging location is greater than a preset distance, the charging module (130) may be operated normally. For example, the preset distance may be determined individually according to the type of disaster and the level of the disaster. For example, if the disaster is a war, the preset distance may be 500 km, and if the disaster is a flood, the preset distance may be 30 km.

[0093] In some embodiments, a main board comprising at least a portion of a control unit (140), a communication unit (160), a payment unit (170), and a display unit (150) may include at least one memory and a processor. Data may be stored in the memory in advance. The memory may store computer-readable instructions. When instructions stored in the memory are executed by the processor, the processor may process operations defined by the instructions. Data stored in the memory may be changed, modified, deleted, and / or added based on administrator input or user input of the electric vehicle charging device (100).

[0094] Memory may include, for example, RAM (random access memories), DRAM (dynamic random access memories), SRAM (static random access memories), or other forms of non-volatile memory known in this field of technology.

[0095] One or more processors according to one embodiment can control the overall operation of an electronic device. The processor may be a hardware-implemented device having a circuit having a physical structure for executing desired operations. The desired operations may include code or instructions included in a program. The hardware-implemented device may include a microprocessor, a Central Processing Unit (CPU), a Graphic Processing Unit (GPU), a processor core, a multi-core processor, a multiprocessor, an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), a Neural Processing Unit (NPU), etc.

[0096] The electric vehicle charging device (100) can receive disaster information, classify the disaster information, and transmit it to the user through a display unit. Additionally, the electric vehicle charging device (100) can prevent additional damage by stopping the operation of the charging module (130) in accordance with the disaster situation based on the disaster information. Furthermore, the electric vehicle charging device (100) can prevent additional damage by facilitating the user's evacuation in the event of a special disaster based on the disaster information.

[0097] Although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the invention as claimed in the patent claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention. Explanation of the symbols

[0098] 100: Electric vehicle charging device 200: Management server 300: Disaster-related departments 110: Charging housing 120: Charging coupler 130: Charging module 140: Control unit 150: Display unit 160: Communications Department 170: Payment Department 111: First temperature sensor 112: First humidity sensor 131: Second temperature sensor 122: Third temperature sensor 123: Cable 121: Connector PS: Power source EC: Electric vehicle 132: Rectifier 133: PFC Circuit 134: DC-DC Converter 150_H: Interruption Information 150_D: Guidance Message

Claims

Claim 1 A charging housing; a charging module located inside the charging housing and configured to receive power from an external power source and convert the received power, comprising: a rectifier connected to a three-phase AC to convert AC into DC; and a PFC circuit that detects the DC converted by the rectifier and improves the power factor for the three-phase AC. A charging module comprising: a DC-DC converter connected to the PFC circuit and regulating the DC voltage output from the PFC circuit; a charging coupler configured to supply power converted from the charging module to the electric vehicle, comprising a cable connected to the charging module through the charging housing and a connector connected to the cable and configured to be inserted into the electric vehicle; a control unit located inside the charging housing and configured to control the operation of the charging module; a display unit installed outside the charging housing and configured to transmit and receive information with the control unit; a communication unit configured to receive disaster information including a unique code indicating a disaster type and disaster level from an external management server and configured to transmit the disaster information to the control unit; a first temperature sensor configured to measure the internal temperature of the charging housing and transmit the measured temperature to the control unit; a second temperature sensor configured to measure the temperature of the charging module and transmit the measured temperature to the control unit; and a third temperature sensor configured to measure the temperature of the charging coupler and transmit the measured temperature to the control unit. and a first humidity sensor configured to measure the internal humidity of the charging housing and transmit the measured humidity to the control unit; wherein the DC-DC converter includes a first DC-AC inverter, a second DC-AC inverter, a first transformer and a second transformer, and a first conversion circuit unit that converts a positive constant voltage (+VDC) into alternating voltage and current and then rectifies it to output the voltage and current of the first power; and a third DC-AC inverter, a fourth DC-AC inverter, a third transformer and a fourth transformer.A second conversion circuit that converts negative constant voltage (-VDC) into alternating voltage and current, rectifies it, and outputs the voltage and current of the second power; and a switching circuit that operates the first conversion circuit and the second conversion circuit in series or in parallel to output high voltage and high current through a series-parallel combination of the voltage and current of the first power and the voltage and current of the second power; wherein if any one of the temperature measured by the first temperature sensor, the temperature measured by the second temperature sensor, and the temperature measured by the third temperature sensor exceeds a preset reference temperature, the control unit is configured to stop the charging module from outputting power and output information on the suspension of the charging module to the display unit, the suspension information includes information on the configuration measured by the temperature sensor that measured the temperature exceeding the reference temperature among the first temperature sensor, the second temperature sensor, and the third temperature sensor, the control unit is configured to change the reference temperature corresponding to each of the temperature measured by the first temperature sensor, the temperature measured by the second temperature sensor, and the temperature measured by the third temperature sensor, and the control unit is configured to stop the charging module from outputting power if the humidity measured by the first humidity sensor exceeds a preset reference humidity. The charging module is configured to stop and output stop information of the charging module to the display unit, and when the charging module is stopped because any one of the temperature measured by the first temperature sensor, the temperature measured by the second temperature sensor, and the temperature measured by the third temperature sensor exceeds a preset reference temperature or the humidity measured by the first humidity sensor exceeds a preset reference humidity, the control unit is configured to restart the charging module when the temperature measured by the first temperature sensor, the temperature measured by the second temperature sensor, the temperature measured by the third temperature sensor, and the humidity measured by the first humidity sensor all fall below the restart temperature / humidity.The control unit is configured to analyze the disaster level from the unique code of the disaster information, classify the disaster information into one of high, medium, or low according to the disaster level, analyze the disaster type from the unique code of the disaster information, classify the disaster information into a special disaster type and a general disaster type, and output a guidance message regarding the disaster information to the display unit; the control unit is configured to stop the charging module from outputting power when the disaster information is classified as high or medium; the control unit is configured to receive a restart signal to restart the charging module from the management server via the communication unit or to receive the restart signal via the display unit; when the disaster information is of the special disaster type and the disaster information is classified as high and the output of the charging module is stopped, if the control unit receives a restart signal to restart the charging module from the communication unit or the display unit, the control unit is configured to switch to a state where the output of the charging module is possible; and when the disaster information is of the general disaster type and the disaster information is classified as high and the output of the charging module is stopped, the control unit receives from the communication unit the An electric vehicle charging device, wherein the control unit is configured to switch to a state where the output of the charging module is possible upon receiving a restart signal, and when the output of the charging module is suspended because the disaster information is classified as severe, the control unit is configured to switch to a state where the output of the charging module is possible upon receiving the restart signal from the communication unit or the display unit.

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