WO2022164152A1 - 다중접속스위치 및 이를 포함하는 충전위치 선택형 전기자동차 충전시스템 - Google Patents
다중접속스위치 및 이를 포함하는 충전위치 선택형 전기자동차 충전시스템 Download PDFInfo
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- WO2022164152A1 WO2022164152A1 PCT/KR2022/001218 KR2022001218W WO2022164152A1 WO 2022164152 A1 WO2022164152 A1 WO 2022164152A1 KR 2022001218 W KR2022001218 W KR 2022001218W WO 2022164152 A1 WO2022164152 A1 WO 2022164152A1
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- charging
- power
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Classifications
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- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/11—DC charging controlled by the charging station, e.g. mode 4
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- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
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- H02J7/007—Regulation of charging or discharging current or voltage
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- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/08—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in parallel
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- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Definitions
- the present invention relates to a charging system for an electric vehicle capable of fixed charging or variable charging using direct current power, and more particularly, to a technology for forming a path for charging an electric vehicle using a multi-connection switch.
- AC power when charging an electric vehicle, AC power is connected to a charger, and the charger converts AC power to AC power for slow charging and DC power for rapid charging.
- the present invention has been proposed to solve the problems of the prior art as described above.
- one of the core objects of the present invention can be composed of a transformer and an AC/DC (AC/DC) converting system, a request power control unit, a relay connection wire network, and an electric wire network in a parking lot, and a transformer and AC/DC
- the converting system and power request operation unit are installed in specific places inside and outside the building to provide charging power to electric vehicles through the relay connection wire network inside the building and the wire network inside the parking lot.
- the requested power control unit can select and send power close to the charging speed according to the charging speed requested by the charging applicant, or provide it in a variable or combination with the corresponding power.
- An object of the present invention is to provide charging power to enable charging.
- one or more of a transformer, an AC/DC converting system, and a power request operation unit are installed in a space separate from the charging adapter 5015 in the parking area, and the number of charging adapters 5015 is lower than the number of DC/DC converters. It aims to provide more parking space.
- the requested power operation unit can select and send power close to the charging speed according to the charging speed requested by the charging applicant, or provide it in a variable or combination with the corresponding power.
- the purpose of this is to provide charging power so that
- another key feature of the present invention is that it has a parking space with a large number of charging adapters 5015 compared to the number of simultaneous charging electric vehicles.
- almost all parking spaces are designed to have or have a charging adapter 5015 in the future.
- the number of simultaneous charging is 60 units, but the parking space with the charging adapter 5015 may be 500 units.
- the parking space may be arbitrarily parked without distinction between internal combustion engine vehicles and electric vehicles, and even if the electric vehicle is fully charged, it may not be necessary to remove the vehicle from the parking space.
- the electric vehicle charging system selectively forms a charging path to the electric vehicle using a multi-connection switch.
- An electric vehicle charging system includes a control unit for managing the overall systems; AC/DC converting system that primarily converts power received from a transformer into DC power; and a DC power delivery system that receives the DC power, determines the stabilization and charging speed of power, and supplies charging power to the electric vehicle.
- An electric vehicle charging system includes an AC/DC converting system for converting AC power into DC power; a DC/DC converter connected to an output terminal of the AC/DC converting system, and a request power operation unit including a disconnection switch connected to an output terminal of each DC/DC converter; Adapters for charging installed in at least some of the parking spaces of the parking lot; a wire network capable of connecting the DC/DC converter and the charging adapters between the DC/DC converter and the charging adapters; and a multi-connection switch connected to three or more wires of the wire network and capable of selectively forming a connection path by connecting some wires among the three or more wires.
- the electric vehicle charging system may include a plurality of the multi-connection switches.
- the DC/DC converter, the electric wire network, and the charging adapter connected to the electric vehicle among the charging adapters are connected through the selectively formed connection path.
- the multi-connection switch includes sockets connected to different wires, respectively; internal wirings connecting the sockets; a plurality of switches disposed on at least some of the internal wirings; and a controller that operates the plurality of switches to selectively form one or more connection paths through which two wires of the plurality of wires are connected.
- the multiple access switch may form two non-overlapping connection paths.
- the two connection paths may be respectively connected to different DC/DC converters.
- the power request operation unit includes a plurality of first DC/DC converters and a plurality of second DC/DC converters that can be connected in parallel to the plurality of first DC/DC converters, and the two connection paths include a plurality of first DC/DC converters.
- 1 may include a connection path connected to one of the DC/DC converters and a connection path connected to one of the plurality of second DC/DC converters.
- three internal wires may be connected to each wire.
- two switches may be disposed between the two sockets.
- the multiple access switch may further include a plurality of demultiplexers connected to the plurality of switches by a control line and operating the switches under the control of the controller.
- one switch may be disposed between the two sockets.
- the multiple access switch may further include a plurality of demultiplexers connected to the plurality of switches by a control line and operating the switches under the control of the controller.
- the plurality of switches and the controller may be connected by a control line.
- the multi-connection switch may further include an LED indicating a connection path.
- the LED may be provided in a number corresponding to the plurality of switches.
- the multiple access switch may further include a communication line for transmitting and receiving signals to and from the main control device.
- One of the important features of the present invention is an adapter for charging a parking area including a transformer 1000, an allowable power management device 1100, an AC/DC converting system 2000, and a request power control unit 3000 in the present invention. (5015) is that it can be installed in a separate space at the front end completely separately.
- the number of recharging parking areas is much larger, so that any D/D can be connected to the adapter of any parking area regardless of a specific parking area.
- this aspect may be considerably limited depending on the circumstances, but in principle such a concept is pursued by the present invention.
- another key feature of the present invention is that it has a parking space with a much larger number of charging adapters 5015 compared to the number of simultaneous charging electric vehicles.
- almost all parking spaces are designed to have or have a charging adapter 5015 in the future.
- the number of simultaneous charging is 60 units, but the parking space with the charging adapter 5015 may be 500 units.
- the parking space can be arbitrarily parked regardless of whether it is an internal combustion engine vehicle or an electric vehicle, and even if the electric vehicle is fully charged, it may not be necessary to remove the vehicle from the parking space.
- the output current from the current variable DC/DC converter is varied in the requested power control unit, or the output from the current fixed DC/DC converter similar to the charging rate or the combination of the current fixed DC/DC converter is charged. It has the effect of providing a variety of charging rates by providing a speed.
- charging is not only possible around the kiosk as in the prior art, but there is an advantage that it can be charged in any parking space where the electric wire network is formed in the parking lot without moving the previously parked internal combustion engine vehicle.
- FIG. 1 is a diagram illustrating an overall system block diagram according to an embodiment of the present invention.
- FIG. 2 is an AC/DC converting system and a requested power operation unit independently configured according to an embodiment of the present invention, the AC/DC converting system and the requested power operation unit are located inside and outside the parking lot, and the requested power operation unit and the electric wire network in the parking lot are relayed.
- It is a diagram showing a detailed system configuration diagram (a) showing a detailed configuration diagram of a system connected by a connection wire network.
- 3A is a detailed system diagram showing a detailed configuration diagram of a system in which the AC/DC converting system and the requested power operating unit are independently configured according to an embodiment of the present invention, and the AC/DC converting system and the requested power operating unit are located outside the parking lot near the parking lot; It is a figure which shows (a).
- 3b is an AC/DC converting system and a requested power operation unit independently configured according to an embodiment of the present invention, and a plurality of requested power operation units are configured in one AC/DC converting system, and each requested power operation unit is capable of transmitting power to each other It is a diagram showing the detailed system configuration diagram (b) showing the detailed configuration diagram of the AC/DC converting system and the power request operation unit located outside the parking lot near the parking lot.
- 3c is an AC/DC converting system and a requested power operation unit independently configured according to an embodiment of the present invention, and several requested power operation units are separately configured in one AC/DC converting system, and the AC/DC converting system and the requested power It is a view showing the detailed system configuration diagram (c) showing the detailed configuration diagram of the system in which the operation unit is located outside the parking lot.
- 3D is another embodiment of the present invention, the AC/DC converting system and the requested power operation unit are independently configured according to the embodiment, and the AC/DC converting system, the requested power operation unit, and the relay connection wire network are outside the parking lot.
- d is a diagram showing the detailed system configuration diagram (d) showing the detailed configuration diagram of the system configured without a separate multi-connection switch for the electric wire network in the parking lot.
- FIG. 4A is a diagram illustrating a multiple access switch (a), which is an example of implementing a multiple access switch in which the number of switches is greater than the number of paths according to an embodiment of the present invention.
- 4B is a diagram illustrating a multiple access switch (b), which is an example of a multiple access switch structure in which the number of switches and the number of paths are the same according to another embodiment of the present invention.
- 4C is a diagram illustrating a multiple access switch (c), which is an example of a multiple access switch structure in which the number of switches and the number of paths are the same according to another embodiment of the present invention.
- FIG. 4D shows the inside of a multi-connection switch 700 configured by using a copper bus bar according to another embodiment of the present invention.
- FIG. 5 is a diagram illustrating a charging adapter in a case in which a plurality of charging adapters are connected between two multi-connection switches according to an embodiment of the present invention.
- 6A is a view showing an example in which two request power operation units are independently configured in a parking space where only electric vehicles can be parked according to an embodiment of the present invention.
- 6B is a view showing an example of a configuration in which multiple access switches located on adjacent parking surfaces are bundled into one line and managed in units of multiple access switch lines in a parking space where only electric vehicles can be parked according to an embodiment of the present invention.
- 6c is a diagram showing an example of a configuration in which adapters or adapter storage boxes located on adjacent parking surfaces are bundled into one line and managed in units of adapters or adapter storage boxes in a parking space where only electric vehicles can be parked according to an embodiment of the present invention.
- FIG. 7A is a view showing an example in which two request power operation units are independently configured in a parking space where electric vehicles and internal combustion engine differentials can freely park as another embodiment of the present invention.
- FIG. 7B shows an example of a configuration in which multiple access switches located on adjacent parking surfaces are bundled into one line and managed in units of multiple access switch lines in a parking space where the electric vehicle and internal combustion engine differentials related to FIG. 7A of the present invention can be freely parked. It is a drawing.
- FIG. 7c is an example of a configuration in which adapters or adapter storage boxes located on adjacent parking surfaces are bundled into one line in a parking space where the electric vehicle and internal combustion engine differentials related to FIG. 7a of the present invention can be freely parked and managed in units of adapter or adapter storage lines is a diagram showing
- FIG. 8A is a diagram illustrating a flowchart (a) of an embodiment of a voltage drop compensation method according to an embodiment of the present invention.
- 8B is a diagram illustrating a flowchart (b) of another embodiment of a voltage drop compensation method according to another embodiment of the present invention.
- 8C is a diagram illustrating a flowchart (c) of another embodiment of a voltage drop compensation method according to another embodiment of the present invention.
- 8D is a diagram illustrating a flowchart (d) of another embodiment of a voltage drop compensation method according to another embodiment of the present invention.
- 10A to 10D are diagrams illustrating the number of selectable paths according to the shape of a wire network according to an embodiment of the present invention.
- 11A is a diagram showing an overall block diagram of a system using AC power as it is, as another embodiment to which the multiple access device of the present invention can be applied.
- 11B is a view showing an overall block diagram of a system in which renewable energy in AC power is combined according to an embodiment of the present invention.
- 12a is a detailed system diagram showing a detailed configuration diagram of a system in which the requested power operation unit is located outside the parking lot and the electric wire network in the parking lot and the requested power operation unit are connected by a relay connection wire network according to an embodiment of the present invention (a) ) is a diagram showing
- 12b is a detailed configuration diagram of a system in which renewable energy is combined according to an embodiment of the present invention, the requested power control unit is located outside the parking lot, and the requested power control unit and the electric wire network in the parking lot are connected by a relay connection wire network. It is a diagram showing the system detailed configuration diagram (b) shown.
- 13A is a diagram illustrating an example (a) of an operation of a multiple access switch in which up-down paths are formed in a multi-access switch according to an embodiment of the present invention.
- 13B is a diagram illustrating an example (b) of an operation of a multiple access switch in which a path is formed from left to right in a multiple access switch according to another embodiment of the present invention.
- 13C is a diagram illustrating an example (c) of an operation of a multiple access switch in which a path is formed from left to top in a multiple access switch according to another embodiment of the present invention.
- 13D is a diagram illustrating an example (d) of an operation of a multiple access switch in which a path is formed in a right-to-up direction in a multiple access switch according to another embodiment of the present invention.
- 13e is a diagram illustrating an example (e) of an operation of a multiple access switch in which a left-down path is formed in a multiple access switch according to another embodiment of the present invention.
- 13f is a diagram illustrating an example (f) of an operation of a multiple access switch in which a path is formed in a right-down direction in a multiple access switch according to another embodiment of the present invention.
- 13G is a diagram illustrating an example (g) of operation of a multiple access switch in which two paths that do not overlap up-down and left-right are formed in a multi-access switch according to another embodiment of the present invention.
- 13H is a diagram illustrating an example (h) of an operation of a multiple access switch in which two paths that do not overlap left-up and right-down are formed in a multiple access switch according to another embodiment of the present invention.
- 13i is a diagram illustrating an example (i) of operation of a multiple access switch in which two paths that do not overlap right-up and left-down are formed in a multi-access switch according to another embodiment of the present invention.
- 13j is a diagram illustrating an example (j) of an operation of a multi-access switch in which up-down paths are formed in a multi-access switch in which the number of switches is configured to be greater than the number of paths according to another embodiment of the present invention.
- FIG. 14 is a diagram illustrating an example of supplying from a DC/DC converter group to an adapter for charging by combining charging rates at the request of Heeja Chung.
- 15 is a diagram illustrating an example of a charging rate combination in which charging rates are combined from a DC/DC converter to a charging adapter according to a request of a customer according to an embodiment of the present invention.
- Chung Hee-ja means a person who wants to be charged
- Chung Dae-cha means a vehicle to be charged
- fixed current D/D means a fixed current DC/DC converter
- current variable D/D means a variable current DC/DC converter
- D/D means a DC/DC converter
- DC power delivery system is a name that calls both the request power control unit and the connection wire network
- connection wire network is a name that calls the relay connection wire network and the wire network in the parking lot together.
- the meaning of "DC/DC converter corresponding to the maximum number of simultaneous charging electric vehicles” means that the number of D/Ds is, in principle, determined based on the number of simultaneous charging electric vehicles. For example, it is common that the number of simultaneous charging electric vehicles and the number of D/Ds are equally configured in a ratio of 1 to 1, but in another embodiment of the present invention, the number of simultaneous charging electric vehicles is higher than the number of simultaneous charging electric vehicles due to a slight difference in the system.
- the number of D/Ds may be slightly larger or slightly smaller.
- a larger number of D/Ds than the number of simultaneous charging electric vehicles can be configured for parallel connection, additional expansion can be considered, or a charging speed ( Power demand)
- the number of D/Ds may be greater than the number of simultaneous charging electric vehicles.
- the present invention can be set to charge power by branching power from one connection wire network to the adapter of two or three parking spaces as needed at the rear end.
- the present invention includes a possibility that the problem can be solved by a device including a diode or the like.
- the number of rechargeable electric vehicles in this case is regarded as one, not two or three.
- the concept that power is supplied through one connected wire network and disconnected by the disconnection switch of the corresponding D/D converter after charging is regarded as the number of electric vehicles that can be charged as 1.
- the overall system block diagram is a transformer 1000, an AC/DC converting system 2000, a DC power delivery system 500, a chungdaecha 9000, and Heeja Chung. It includes a screen display 9100 and a control unit 400 .
- transformer 1000 is a power supply and distribution facility including a power reception receiving power produced by a power plant and a power distribution distribution that distributes it to the amount of power required by each customer and a substation for substation Equipment, such as a distribution board, may include equipment necessary for the process for power reception, power distribution, and transformation in general.
- a power supply and distribution facility including a power reception receiving power produced by a power plant and a power distribution distribution that distributes it to the amount of power required by each customer and a substation for substation Equipment, such as a distribution board, may include equipment necessary for the process for power reception, power distribution, and transformation in general.
- the magnitude of the AC voltage converted by the transformer 1000 may vary depending on the magnitude of the DC voltage used in the DC power delivery system 500 using the power produced in the power plant, and the AC voltage converted in consideration of conversion efficiency, etc. size is determined
- HVDC high voltage direct current
- the transformer may not be included in the system of the present invention, and in this case, a transformer that would have been somewhere outside becomes the transformer of the present invention.
- the AC/DC converting system 2000 serves to primarily convert AC power supplied from a transformer into DC power and supply it.
- the power supplied to the transformer through the power plant, transmission, and distribution processes is unstable. If this unstable power source is converted into DC voltage and used immediately, unstable power is supplied and problems such as malfunction or deterioration may occur.
- the AC/DC converting system 2000 primarily converts AC power to DC power, and the converted DC power is converted into DC/DC in the request power operation unit 3000 to stabilize the power and charge the vehicle (9000). It can be used for charging.
- the DC power delivery system 500 may include a power request operation unit 3000 and a connection wire network 600 , and the connection wire network 600 includes a relay connection wire network 4000 and a wire network 5000 in the parking lot. ), and the relay connection wire network 4000 in the connection wire network 600 may be omitted if necessary.
- the request power operation unit 3000 controls the selection of D/D or the combination of D/D, setting the charging rate (requested power), etc. to provide the charging speed (requested power) of the chunghee, and the charging rate (requested power). ) to supply or release supply.
- the charging speed of Chung Hee-ja includes the speed set by consultation or announcement in advance, even if it was not requested at the time.
- the system can autonomously apply the appropriate time and charging speed according to the delivery time of Chung Hee-ja, and this can also be included in the meaning of the charging speed of Chung Hee-ja in the sense that the charging time and charging speed are determined by the action of the will of Chung Hee-ja.
- Chung Hee-ja can connect to the adapter in the parking area at 6 pm and set the departure time to 8 am the next morning.
- the charging rate is up to 90% by the time and charging rate agreed in advance with Chung Hee, for example, by the time of departure (or 30 minutes before the departure time)
- the system of the present invention can adapt to various situations according to artificial intelligence or algorithms. You will be able to adjust the charging speed and charging time while responding appropriately. In this case, too, in the present invention, it can be regarded as one of the types of the desired charging speed of Heeja Chung.
- the requested power operation unit can be operated by directly receiving the wishes of Chung Hee-ja, but in a more desirable form, it can be seen that the main control device interprets the wishes of Chung Hee-ja, such as the charging speed, and is operated according to the control commands given according to the overall situation. .
- the relay connection wire network 4000 is located between the request power supply wire 3013 that supplies the charging speed (requested power) set in the request power operation unit 3000 and the wire network 5000 in the parking lot, and the charging speed (requested power) Electric power) may be used to form a path so that it can be supplied in an appropriate path to the electric wire network 5000 in the parking lot.
- the electric wire network 5000 in the parking lot may serve to provide a charging speed (requested power) by being connected to the relay connection wire network 4000 to form a charging path to the location where the charging vehicle 9000 is located.
- the electric wire network 5000 in the parking lot is similar to the relay connection wire network 4000 and may serve as a batch or arbitrarily divided.
- the charging vehicle 9000 means a vehicle to be charged, and the charging speed (requested power) requested by the Chung-hee is supplied through the requested power control unit 3000, the relay connection wire network 4000, and the electric wire network 5000 in the parking lot. do.
- the control unit 400 includes a main control device 6000, an allowable power management device 1100, an AC/DC converting system management 2100, a request power control unit management 3100, a relay connection wire network management 4100, and a parking lot. It may include a wire network management 5100 , charging and information management 8000 , and a customer service system 7000 .
- the main control device 6000 may serve to send and receive notifications to or send and receive information to the user's terminal by controlling the management and control of overall systems for charging, internal or external communication, and the customer service system 7000. .
- various methods for wired communication or wireless communication such as PLC, CAN, LAN, LIN, Bluetooth, Zigbee, Beacon, etc. may be used.
- the allowable power management device 1100 serves to continuously monitor and control so that the power used in the charging system according to the present invention does not exceed the allowable total power of the transformer 1000 .
- it may include a facility or software, a distribution board, etc. for typically monitoring and controlling electric power.
- the allowable total power can mean the amount of power permitted by contract with an electricity supply source (Korea Electric Power, etc. in Korea) regardless of the presence of a transformer.
- the AC/DC converting system management 2100 may serve to continuously monitor and control the power supplied from the transformer 1000 so as not to exceed the power determined when the power supplied from the transformer 1000 is primarily converted to DC power.
- the AC/DC converting system management 2100 may include equipment, software, and a distribution panel for monitoring and controlling power in general.
- the AC/DC converting system management 2100 monitors and controls each AC/DC converting system 2010, 2020, 2030, 2040, and 2050. can do.
- the requested power operation unit management 3100 selects D/D or determines a combination or charging speed (requested power) according to the request of Chung Hee, and controls such as supplying or blocking it, and problems such as failure or leakage current. can play a role in understanding.
- the relay connection wire network management 4100 forms a path for supplying the charging speed (requested power) set in the requested power operation unit 3000 to the electric wire network 5000 in the parking lot where the charging truck 9000 is located. After charging is complete, it can serve to release the path formation.
- the electric wire network management 5100 in the parking lot forms a route for supplying the charging speed (requested power) supplied from the relay connection wire network 4000 to the location of the charging truck 9000 and releases the route formation after charging is completed. can play a role
- the charging and information management 8000 determines whether the charging vehicle 9000 connected to information such as battery information, battery remaining amount, and vehicle information received from the charging vehicle 9000 is a vehicle that can be charged in the corresponding charging system. It can play a role such as
- the customer service system 7000 may include a billing system 7100 , a member information management system 7200 , and a vehicle diagnosis 7300 .
- a billing system 7100 may be included in the customer service system 7000 .
- a member information management system 7200 may be included in the customer service system 7000 .
- a vehicle diagnosis 7300 may be included in the customer service system 7000 .
- the billing system 7100 serves as billing information by time/season, calculating a charge according to the power used for charging, and making a payment, and the member information management system 7200 provides payment information, vehicle information, and reservation information for Chung Hee-ja. It can serve to store, etc.
- the battery charger diagnosis light 7300 may serve to store the information received from the charger and vehicle charging and information management 8000 and transmit it to the Chunghee person according to the information.
- the display 9100 of the screen display 9100 means that information transmitted from the customer service system 7000 is displayed on a terminal such as a smartphone or a computer of the customer service provider.
- FIG. 2 is an example of the overall structure from the transformer 1000 to the charging adapter 5015 where the charging vehicle 9000 is located in accordance with an embodiment of the present invention.
- 1100 an AC/DC converting system 2000 , and a DC power delivery system 500 may be included.
- the number of AC/DC converting systems 2000 of FIG. 2 may be plural.
- the first to fifth AC/DC converting systems (2010, 2020, 2030, 2040, 2050) may be configured in plurality, and the DC power delivery system 500 is also first to fifth AC/DC
- the first to fifth DC power delivery systems 510 , 520 , 530 , 540 , and 550 may be connected to the converting systems 2010 , 2020 , 2030 , 2040 , and 2050 , respectively.
- the AC/DC converting system 2000 and the DC power delivery system 500 are each composed of five, but this is only an example according to an embodiment of the present invention, and the number may be more or less.
- the /DC converting system 2010 and the first DC power delivery system 510 have been described as an example.
- a DC power source of the same size may be used as the power source, or DC power sources having different sizes may be used as needed.
- the voltage of the power source used herein may be naturally generated and used in various ways by those skilled in the art according to their needs.
- the charging standard voltage of an electric vehicle is 800V and 400V, both can be accommodated in consideration of the ratio of the two vehicles.
- the detailed structure of the first to fifth DC power delivery systems 510, 520, 530, 540, 550 of the request power operation unit 3000, the relay connection wire network 4000, and the wire network 5000 in the parking lot is It may be the same, or may be configured differently according to need.
- the power request operation unit 3000 is a current fixed D/D 3021
- the relay connection wire network 4000 is in the form of a pyramid (a structure in which the number of wire networks increases)
- the wire network 5000 in the parking lot and the It is an embodiment according to the present invention including a configuration in which the wire 900 to which the relay connection wire network 4000 is connected is connected to the upper multi-connection switch line 5011 .
- the charging rate (requested power) requested by Chung-hee may select a charging rate (requested power) determined by the current fixed D/D 3011 of the requested power control unit (a) 3010 .
- the charging speed (requested power) is, in principle, likely to be a different path every time it is reset through the formation of a path between the relay connection wire network (a) 4010 and the electric wire network 5010 in the first parking lot, which has a number of cases. In a much larger state, it may be supplied to the charging adapter 5015 connected to the charging vehicle 9000 .
- the current-fixed D/D 3011 of the requested power operation unit (a) 3010 may supply charging rates (requested power) of the same size, but may supply charging rates of different sizes.
- the charging speed (requested power) of each current fixed D/D 3011 may be variously determined in consideration of the situation of the corresponding parking lot at the time of installation.
- the relay connection wire network ( a) Form a path between 4010 and the electric wire network 5010 in the first parking lot, and when the work is completed, turn on the disconnection switch 3012 of the request power control unit (a) 3010 to speed the charging ( requested power).
- a device such as a DC circuit breaker for blocking the fault current may be added, and a reverse current relay, a ground fault relay, and a residual current device may be added. Devices that can prevent accidents that can be shown while using DC power, such as the like, may be additionally used.
- D/D of the requested power operation unit it is expressed as D/D of the requested power operation unit, but depending on the design advantage or situation, the D/D of the requested power operation unit is DC/AC conversion - In addition to AC/DC conversion, various design methods for DC/DC conversion or configuration may be included.
- Electricity for moving the multi-connection switch 700 used in the connection wire network 600 to set a route may use alternating current for general household use, not electricity for charging an electric vehicle in the present invention.
- the wires connected to the multi-connection switch 700 have a total of six paths. can have You can form a path with top and bottom, top and left edge, top and right edge, bottom and left edge, and bottom and right edge. Basically, it forms a single route, but in some cases, if it is a non-overlapping route, there are two routes. can be formed simultaneously.
- connection wire network may be connected by triangles, hexagons, etc. that are continuously connected in all directions as shown in FIGS. 10A to 10D .
- it may be connected with a three-dimensional connection structure, for example, a tetrahedron or a cube.
- a tetrahedron or a cube Of course, it can be used with a slightly distorted shape as needed. Also, of course, these shapes can be mixed and used.
- the important point is that in the request power control unit 3000 with a small number of power supply lines, there is a path already in the charging vehicle 9000, which can be said to be connected at random and in a variety of charging adapters in the parking lot with a much larger number than that, in principle.
- the key is whether the number of connection paths of the multi-connection switches 700 can be sufficiently secured so that a new path can be formed without confusion with the path of the charging trucks 9000 that are connected and charged.
- the multi-connection switch 700 is installed in all or most of the corners formed by the connection wire network. However, if the number of connection paths can be sufficiently secured, the multi-connection switch 700 may not be installed at all corners, and the number of possible connections for each switch may be reduced and used.
- an adapter for charging in a parking space should be installed. Most preferably, an adapter may be installed in every parking space. Because doing so would give owners the advantage of being able to park regardless of whether they have an internal combustion engine or an electric car. In addition, if the proportion of electric vehicles continues to increase in the future, it is possible to respond only by supplementing the upper transformer, AC/DC converter, and D/D converter.
- the adapters in the parking space may be installed in the same way as 400 or 500.
- these numbers can be applied in various ways as those skilled in the art must judge the enemy by looking at the situation, depending on the proportion of electric vehicles among all vehicles, the type of use of electric vehicles, and the like. And, depending on the situation, a considerable number of adapters in the parking space may be omitted, but at least it is much more than the maximum number of simultaneous charging electric vehicles. have.
- the multi-connection switch 700 in the parking lot is installed, but if there are a number of places where there is no charging adapter 5015 as needed, or if the number of routes is sufficient, it can be directly connected through that part, and even in that case, multiple access This is because the number of connection paths of the switches 700 can be sufficiently secured.
- 3A illustrates, for example, the overall structure from the transformer 1000 to the charging adapter 5015 where the charging vehicle 9000 is located according to an embodiment of the present invention.
- the electric vehicle charging system includes the transformer 1000, the allowable power management device 1100, the AC/DC converting system 2000, and the DC power delivery system 500a. may be included.
- the pre-installed transformer can handle the power used for charging, power can be supplied by using the corresponding transformer without a separate installation, and the pre-installed transformer can handle the power used for charging If not, power may be supplied through the installation of an additional transformer 1000 .
- the AC/DC converting system 2000 of FIG. 3A may be configured as one or a plurality of AC/DC converters.
- a plurality of first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 may be configured, or may be configured as one AC/DC converting system.
- the DC power delivery system 500 is also the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, 2050 to the first to fifth DC power delivery systems 510, 520, 530, 540, 550 ) may be connected to each other.
- the power request operation unit 3000 may be separately provided for each of the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050. That is, the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 may be connected to the first to fifth requested power operation units 3010, 3020, 3030, 3040, and 3050, respectively.
- the AC/DC converting system 2000, the DC power delivery system 500, and the request power operation unit 3000 are each composed of five, but this is only an example according to an embodiment of the present invention. may be more or less.
- the DC power delivery system 500a is connected to the AC/DC converting system 2000 in a one-to-one manner, but this is only an example according to an embodiment of the present invention.
- the system 2000 may be connected one-to-many.
- Figure 3a is a first AC of the first to fifth AC / DC converting systems (2010, 2020, 2030, 2040, 2050) and the first to fifth DC power delivery systems (510a, 520a, 530a. 540a, 550a)
- the /DC converting system 2010 and the first DC power delivery system 510a have been described as examples.
- the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 may all have the same power or different amounts of power available for each system.
- the first to fifth DC power delivery systems (510a, 520a, 530a, 540a, 550a) included in each of the power request power operation unit 3000 may have the same size of DC power, and may have different sizes as needed. It can be configured using a DC power supply.
- the magnitude of the voltage in the power source used herein may be varied in the magnitude of the charging voltage of electric vehicles sold on the market, it may be configured in various ways according to the needs when constructing the system. For example, if the size of the charging voltage of the electric vehicle is 800V and 400V, it may be configured in consideration of the ratio of the number of vehicles of the electric vehicles using the two voltages.
- the detailed structures of the first to fifth DC power delivery systems 510a, 520a, 530a. 540a, 550a of each request power operation unit 3000 and the electric wire network 5000 in the parking lot are the first requested power operation unit 3010 ) and may be the same as the detailed structure of the electric wire network 5010 in the first parking lot, but may be configured differently according to need.
- FIG. 3A illustrates an electric vehicle charging system in which an AC/DC converting system and a power request operation unit are separated according to an embodiment of the present invention.
- 3A is a diagram illustrating a case in which the AC/DC converting system 2000 is configured in plurality, and the requested power operation unit 3000 is configured as one of the requested power operation unit 3000 in the AC/DC converting system 2000. .
- FIG. 3A shows that the power request operation unit 3000 is separately present for each of the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050, and the first to fifth AC/DC It is a diagram showing a case in which the converting system (2010, 2020, 2030, 2040, 2050) and the power request operation unit 3000 are configured outside a parking lot.
- outside means a separate space other than the area of the corresponding parking lot, which can be a facility space that can separately configure the AC/DC converting system 2000 and the requested power operation unit 3000 near the parking lot. have.
- the separate space may include an area excluding the area of the parking lot in which the AC/DC converting system 2000 and the requested power operation unit 3000 are responsible for charging in the entire area of the parking lot, and there is a space separate from the parking lot. Also, it should be connected to the charging adapter 5015 through the D/D disconnection switch 3012 and the multi-connection switch 700 .
- the charging rate (requested power) requested by Chung-hee may select a charging rate (requested power) determined by the current fixed D/D 3011 of the first requested power operation unit 3010 .
- the charging speed (requested power) can be supplied to the charging adapter 5015 and the charging vehicle 9000 through various route formation in the electric wire network 5010 in the parking lot according to the current location of the charging vehicle 9000.
- the path for charging can be formed to avoid the existing path and use the shortest distance, minimum multi-connection switch 700 .
- a plurality of AC/DC converters for example, supply or cut off the DC current for charging by precisely manufacturing the AC/DC converter that is input without adding a DC/DC converter to the charger required in the present invention.
- Note can also be used by directly connecting a plurality of AC/DC converters with a power request operation unit including a disconnection switch.
- the most important point in the path forming process is to form a path capable of minimizing the voltage drop due to the length of the wire of the formed path and the number of multi-connection switches.
- the control program may calculate the voltage drop due to the wire length and the number of multiple connection switches of the paths formed through simulation when the path is formed, and select the path with the smallest voltage drop among them.
- the parking surface 80 in which a charging path is not formed may occur.
- a path can be selected so that the voltage drop is small and the additional path formation is easy.
- a recommended parking surface may be displayed, such as by installing an LED indicator light on the upper part of the parking surface 80 to make it blink.
- the charging path in order to minimize the case in which the charging path is not formed, it may be important to minimize path formation using two or more multiple access switches 700 installed on the parking surface 80 successively.
- a path is formed by continuously using the multiple access switch 700 installed on the parking surface 80, for additional charging with the corresponding charging adapter 5015 of the multiple access switch 700 used only for connection Since it may be difficult to form a path, the corresponding parking surface 80 may be difficult to charge even when an electric vehicle enters. Therefore, it is preferable to avoid continuously using the multiple access switch 700 installed on the parking surface 80 and form a charging path by well utilizing the multiple access switch 700 installed in the passage.
- the three charging path forming methods may be used independently, and depending on the number of multiple access switches 700 installed in the parking lot, two or more of the first and second methods, the first and third methods, and the three methods may be used. may be
- the first power request operation unit 3010 includes a first DC/DC converter group 41 and a disconnection switch 3012 , and the first DC/DC converter group 41 is a current fixed D/D 3011 . ) and all can supply the same size of charging speed (requested power), but can supply different sizes of charging rates.
- the charging speed (requested power) of each current fixed D/D 3011 may be variously determined in consideration of the situation of the corresponding parking lot at the time of installation.
- the current fixed type D/D 3011 of the first requested power operation unit 3010 is selected according to the determination of the main control device 6000 by the selection of the charging speed (requested power) of Chung Heeja, and the first A path of the electric wire network 5010 in the parking lot is first formed, and when the corresponding operation is completed, the disconnection connection switch 3012 of the first requested power operation unit 3010 is turned on to supply a charging speed (requested power).
- the current fixed D/D 3011 of the first DC/DC converter group 41 By configuring the current fixed D/D 3011 of the first DC/DC converter group 41 in various ways, it is possible to provide a charging speed (requested power) according to the user's choice from slow charging using DC power to fast charging. There is an advantage that it can be possible, and when the number of electric vehicles is increased, the AC/DC converting system 2000 and the requested power operation unit 3000 are additionally installed, so that the existing charging system can be expanded.
- the current for parallel connection with the current fixed type D/D 3021 A second DC/DC converter group 42 composed of a fixed D/D 3022, a third DC/DC converter group 43 composed of a current variable D/D 3031, a current fixed D/D 3042 and The current variable D/D 3041 may be configured as a fourth DC/DC converter group 44 having a mixed configuration.
- a device such as a DC circuit breaker for blocking a fault current when a fault occurs when using DC power as in the present invention may be added, and DC such as a reverse current relay, a ground fault relay, and a residual current device It can be configured by additionally using devices that can prevent accidents that may occur while using power.
- Power for the operation of the multi-connection switch 700 used in the electric wire network 5010 in the first parking lot to set a route may use a general AC or DC power separately from the power for charging the electric vehicle.
- the structure of the multi-connection switch 700 used in the present invention is an example of a case in which four wires are connected to the multi-connection switch 700 when connected vertically and horizontally as shown in FIG. 4C as one embodiment. Although described, more or fewer wires than four wires may be connected according to the shape of the wire network as shown in FIGS. 10A to 10D .
- the electric wire network 5010 in the parking lot is only an example according to an embodiment of the present invention in the triangles, squares, hexagons, and hexahedrons of FIGS. , may be used by mixing the above shapes.
- An important point in the charging system according to the present invention is the charging adapter 5015 installed on the parking surface 80 in a much larger number than the request power operation unit 3000 having a smaller number of power supply devices than the parking surface 80.
- the key is to be able to charge the charging truck 9000 by forming various routes according to the request of Chung Hee-ja, to form a new route without confusion with a preset route, and to be able to charge anywhere in the parking lot. .
- the number of multiple access switches 700 must be sufficiently secured so that a new path can be formed by avoiding confusion with the existing path, and the multiple access switch 700 is basically installed on the parking surface 80, and if a new If the number of multiple access switches 700 is insufficient to form a path, a multiple access switch 700 may be additionally installed at a location such as a passage other than the parking surface 80 .
- one charging adapter 5015 is installed for every parking surface 80 .
- the existing internal combustion engine vehicle can be parked anywhere without moving to charge the electric vehicle.
- the proportion of electric vehicles increases in the future, there is an advantage that it is possible to respond only by additionally installing the transformer 1000 , the AC/DC converting system 2000 , and the power request operation unit 3000 .
- the number of charging adapters 5015 installed on the parking surface 80 may be 400 or 500. However, these numbers may vary depending on the specific gravity of the electric vehicle relative to the entire parking surface 80 or the type of use, and the number of the charging adapter 5015 may be omitted or increased depending on the situation.
- the core of the present invention is that the charging adapter 5015 is installed more than the maximum number of simultaneous charging electric vehicles, so that charging can be performed on all parking surfaces 80 or any parking surface 80 in a specific area depending on the situation. it can be said
- the charging adapter 5015 when the charging adapter 5015 is connected to the charging cart 9000 and the charging end time is set, the charging adapter 5015 is connected to the multi-connection switch 700 before charging starts. By releasing it, it is possible to control so that electricity does not flow in the charging vehicle 9000, and the charging speed, disconnection switch 3012, etc. can be controlled in the charging system according to the present invention so that charging is completed according to the charging end time after charging is started. can
- the charging adapter 5015 is connected to the multi-connection switch 700 by disconnecting the connection to the charging adapter ( 5015) can be set so that electricity does not flow until disconnected.
- the charging completion here may set the charging rate according to the setting of the operating system and the user, for example, charging up to 80% by fast charging and completing charging.
- the present invention may mean that after being charged to 80% by DC fast charging, it is converted to AC slow charging and charging to 90% or more is completed.
- the pre-formed charging path release process is first in the switch connection of the charging adapter 5015 is released, and the The switch proceeds in the order of disconnecting the connection and disconnecting the multi-connection switch 700, and after the DC charging is sufficiently completed, by controlling the switch of the charging adapter 5015 or the adapter storage box, a separate AC power is supplied to the charging vehicle. (9000) can be supplied.
- the charging adapter 5015 can be arranged inside by configuring a separate housing on the ceiling or wall of the parking lot, inside and outside the floor, and as well as a wired adapter directly connected to the charging vehicle 9000,
- it can be configured as a module capable of wireless charging using methods such as magnetic induction, magnetic resonance, and electromagnetic waves.
- 3B is an example of the overall structure from the transformer 1000 to the charging adapter 5015 where the charging vehicle 9000 is located according to an embodiment of the present invention, and the electric vehicle charging system includes the transformer 1000 ), the allowable power management device 1100 , the AC/DC converting system 2000 , and a DC power delivery system 500a may be included.
- FIG. 3B illustrates a case in which electric power can be transmitted by connecting electric wire networks to each other.
- the pre-installed transformer can handle the power used for charging, power can be supplied by using the corresponding transformer without a separate installation, and the pre-installed transformer can handle the power used for charging If not, power may be supplied through the installation of an additional transformer 1000 .
- the AC/DC converting system 2000 of FIG. 3B may be configured as one or a plurality of AC/DC converting systems.
- a plurality of first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 may be configured, or may be configured as one AC/DC converting system.
- the AC/DC converting system 2000 is composed of five in the above embodiment, this is only an example according to an embodiment of the present invention, and the number may be more or less.
- the DC power delivery system 500a is connected to the AC/DC converting system 2000 in a one-to-one manner, but this is only an example according to an embodiment of the present invention.
- the system 2000 may be connected one-to-many.
- Figure 3b is a first AC of the first to fifth AC / DC converting systems (2010, 2020, 2030, 2040, 2050) and the first to fifth DC power delivery systems (510a, 520a, 530a. 540a, 550a)
- the /DC converting system 2010 and the first DC power delivery system 510a have been described as examples.
- the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 may all have the same power or different amounts of power available for each system.
- the first to fifth DC power delivery systems (510a, 520a, 530a, 540a, 550a) included in each of the power request power operation unit 3000 may have the same size of DC power, and may have different sizes as needed. It can be configured using a DC power supply.
- the magnitude of the voltage in the power source used herein may be varied in the magnitude of the charging voltage of electric vehicles sold on the market, it may be configured in various ways according to the needs when constructing the system. For example, if the size of the charging voltage of the electric vehicle is 800V and 400V, it may be configured in consideration of the ratio of the number of vehicles of the electric vehicles using the two voltages.
- the detailed structures of the first to fifth DC power delivery systems 510a, 520a, 530a. 540a, 550a of each request power operation unit 3000 and the electric wire network 5000 in the parking lot are the first requested power operation unit 3010 ) and may be the same as the detailed structure of the electric wire network 5010 in the first parking lot, but may be configured differently according to need.
- the electric vehicle charging system may include a plurality of requested power operation units 3000 , and the plurality of requested power operation units 3000 may transmit power to each other.
- the AC / DC converting system 2000 is composed of several
- the requested power operation unit 3000 is the AC / DC converting system 2000
- the requested power operation unit 3000 is composed of a plurality
- the first to fourth requested power operation units 3010 , 3020 , 3030 , and 3040 are diagrams illustrating a case in which power can be transmitted to each other.
- FIG. 3B shows that the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 each have the requested power operation unit 3000 separately, and the first to fifth AC/ It is a diagram showing a case in which the DC converting system (2010, 2020, 2030, 2040, 2050) and the power request operation unit 3000 are configured outside a parking lot.
- the first to fourth requested power operation units 3010 , 3020 , 3030 , 3040 include a first DC/DC converter group 41 and a disconnection switch 3012 , and the first DC/DC converter group 41 .
- ) consists only of the current fixed type D/D 3011 and all can supply the same size of charging speed (requested power), but can supply different sizes of charging rates.
- the charging speed (requested power) of each current fixed D/D 3011 may be variously determined in consideration of the situation of the corresponding parking lot at the time of installation.
- the DC/DC converter group 40 of the first to fourth requested power operation units 3010, 3020, 3030, and 3040 is a first DC/DC converter group consisting only of the current fixed D/D 3011 ( 41), but this is only a configuration according to an embodiment of the present invention, and the DC/DC converter group 40 of each requested power operation unit 3000 may be the same or different from each other. It may be determined in various ways in consideration of the situation of the parking lot.
- the current fixed D/D 3011 of the first DC/DC converter group 41 By configuring the current fixed D/D 3011 of the first DC/DC converter group 41 in various ways, it is possible to provide a charging speed (requested power) according to the user's choice from slow charging using DC power to fast charging. There is an advantage that it can be possible, and when the number of electric vehicles is increased, the AC/DC converting system 2000 and the requested power operation unit 3000 are additionally installed, so that the existing charging system can be expanded.
- 3C is an example of the overall structure from the transformer 1000 to the charging adapter 5015 where the charging vehicle 9000 is located according to an embodiment of the present invention.
- the electric vehicle charging system is the transformer 1000 , the allowable power amount management device 1100 , the AC/DC converting system 2000 , and a DC power delivery system 500a may be included.
- Figure 3c illustrates a case in which the electric wire network is separated from each other.
- the pre-installed transformer can handle the power used for charging, power can be supplied by using the corresponding transformer without a separate installation, and the pre-installed transformer can handle the power used for charging If not, power may be supplied through the installation of an additional transformer 1000 .
- the AC/DC converting system 2000 of FIG. 3C may be configured as one or a plurality of AC/DC converting systems.
- a plurality of first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 may be configured, or may be configured as one AC/DC converting system.
- the AC/DC converting system 2000 is composed of five in the above embodiment, this is only an example according to the embodiment of the present invention, and the number may be more or less.
- the DC power delivery system 500a is connected to the AC/DC converting system 2000 in a one-to-one manner, but this is only an example according to an embodiment of the present invention.
- the system 2000 may be connected one-to-many.
- Figure 3c is a first AC of the first to fifth AC / DC converting systems (2010, 2020, 2030, 2040, 2050) and the first to fifth DC power delivery systems (510a, 520a, 530a. 540a, 550a)
- the /DC converting system 2010 and the first DC power delivery system 510a have been described as examples.
- the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 may all have the same power or different amounts of power available for each system.
- the first to fifth DC power delivery systems (510a, 520a, 530a, 540a, 550a) included in each of the power request power operation unit 3000 may have the same size of DC power, and may have different sizes as needed. It can be configured using a DC power supply.
- the magnitude of the voltage in the power source used herein may be varied in the magnitude of the charging voltage of electric vehicles sold on the market, it may be configured in various ways according to the needs when constructing the system. For example, if the size of the charging voltage of the electric vehicle is 800V and 400V, it may be configured in consideration of the ratio of the number of vehicles of the electric vehicles using the two voltages.
- the first to second request power operation units 3010 and 3020 include a first DC/DC converter group 41 and a disconnection switch 3012, and the first DC/DC converter group 41 is a current fixed type. It consists of only the D/D 3011 and all can supply charging rates (requested power) of the same size, but can supply charging rates of different sizes.
- the charging speed (requested power) of each current fixed D/D 3011 may be variously determined in consideration of the situation of the corresponding parking lot at the time of installation.
- the DC/DC converter group 40 of the first to second requested power operation units 3010 and 3020 is a first DC/DC converter group 4010 made of only the current fixed D/D 3011 .
- the configuration is given as an example, this is only a configuration according to an embodiment of the present invention, and the DC/DC converter group 40 of each requested power control unit 3000 may be the same or different from each other, which is the situation of the corresponding parking lot at the time of installation. can be determined in various ways taking into account.
- the current fixed D/D 3011 of the first DC/DC converter group 41 By configuring the current fixed D/D 3011 of the first DC/DC converter group 41 in various ways, it is possible to provide a charging speed (requested power) according to the user's choice from slow charging using DC power to fast charging. There is an advantage that it can be possible, and when the number of electric vehicles is increased, the AC/DC converting system 2000 and the requested power operation unit 3000 are additionally installed, so that the existing charging system can be expanded.
- the detailed structure of the first to fifth DC power delivery systems (510a, 520a, 530a. 540a, 550a) of each request power operation unit 3000 and the electric wire network 5000 in the parking lot is the first requested power operation unit 3010 ) and may be the same as the detailed structure of the electric wire network 5010 in the first parking lot, but may be configured differently according to need.
- the wire network 5000 may include a plurality of separated wire networks.
- the electric wire network 5010 in the first parking lot may include two separate electric wire networks.
- FIG. 3C shows that the AC/DC converting system 2000 is configured in plurality, the requested power operation unit 3000 is the AC/DC converting system 2000, and the requested power operation unit 3000 is configured in plurality, FIG. 3B Unlike , the first to second request power operation units 3010 and 3020 are diagrams illustrating a case in which power cannot be transmitted to each other.
- FIG. 3C shows that the first to fifth AC/DC converting systems 2010, 2020, 2030, 2040, and 2050 each have the requested power operation unit 3000 separately, and the first to fifth AC/ It is a diagram showing a case in which the DC converting system (2010, 2020, 2030, 2040, 2050) and the power request operation unit 3000 are configured outside a parking lot.
- a plurality of corners capable of forming a contact point to which three or more electric wires are selectively connected are formed in the wire network 5000 , and the multi-connection switch 700 may be disposed at a selected corner among the corners.
- the multi-connection switch 700 may be connected to three or more wires of the wire network 5000 and selectively form a connection path by connecting some wires among the three or more wires.
- 3D is similar to FIG. 3A, but as another embodiment, there is no multi-connection switch 700 in some or all spaces of the wire network 5000 in the main window, and the route formation is a relay connection wire network 4000 located in a separate space.
- ) is a diagram showing an example of a case made in The charging adapter 5015 installed on each parking surface 80 existing in the parking space without the multi-connection switch 700 is connected to the electric wire for power supply through the formed path.
- each wire can be expressed in various ways such as a multi-connection switch 700 and a relay connection wire network 4000 (or a complex distribution board, or a multi-faceted distribution board) composed of wires. there is) is associated with
- the relay connection wire network 4000 forms a path from the charger to the parking surface 80 according to the request of Chung Hee-ja, and the power supplied from the request power operation unit 3000 is the route formed in the relay connection wire network 4000 . Power is supplied to the parking surface 80 by the
- the shape of the relay connection wire network 4000 may be configured in various shapes such as a rectangle, a trapezoid, and the like, and the shape depends on the shape of the space in which the relay connection wire network 4000 is installed and the configuration of multiple connection switches for path formation. may vary depending on
- Figure 4a is a diagram showing an example of the implementation of the multiple access switch (700).
- a plurality of switches disposed in at least some of sockets 1410 connected to different wires, internal wires 1500 connecting the sockets 1410 , and the internal wires 1500 , respectively. (1600), and, by operating the plurality of switches 1600, a controller 1420 that selectively forms one or more connection paths through which two wires among the plurality of connected wires 750, 760, 770, and 780 are connected may include
- the multi-connection switch 700 controls a switch 1600 for forming a wire path, a demultiplexer 1430 for controlling the switch 1600, an LED 1440 for displaying a route in use, a demultiplexer 1430, and the like. and a controller 1420 serving to communicate with the main control device 6000 , a communication line for communication with the main control device 6000 , a power line for supplying power to the controller 1420 , and a power supply unit.
- the number of LEDs 1440 indicating the connection path may be provided corresponding to the plurality of switches 1600 .
- wires 750 , 760 , 770 , and 780 that are externally connected to the multi-connection switch 700 are connected to internal wires 1500 of the multi-connection switch 700 .
- Three internal wires 1510 , 1520 , 1530 ( 1550 , 1520 , 1560 ) ( 1560 , 1540 , 1510 ) ( 1530 , 1540 , 1550 ) may be connected to each of the wires 750 , 760 , 770 , and 780 .
- two switches 1600 may be disposed between the two sockets 1410 . That is, two switches 1600 may be disposed per one path 1510 , 1520 , 1530 , 1540 , 1550 , and 1560 .
- the wires 750, 760, 770, and 780 each have three paths 1510, 1520, 1530, 1550, 1520, 1560, 1560, 1540, 1510, 1530, 1540, 1550 that can be selected. It is connected to the switch 1600, therefore, depending on the state of the switches 1600 connected to each of the wires 750, 760, 770, 780, the multi-connection switch 700, the upper-lower 1520, the left -Right 1540, left-top 1510, left-bottom 1560, right-top 1530, right-bottom 1550, a total of six paths can be formed.
- two paths may be formed so as not to overlap each other, and other switches connected to wires connected when the six basic paths are formed and the three types of two paths are formed remain OFF.
- the external electric wire 750 connected to the first socket 1410a is connected to the second socket 1410b and the external electric wire 770 by a left-upper (1510) path, and a fourth through an upper-lower (1520) path. It is connected to the socket 1410d and the external electric wire 760, and is connected to the third socket 1410c and the external electric wire 780 through the right-upper 1530 path.
- the external electric wire 770 connected to the second socket 1410b is connected to the first socket 1410a and the external electric wire 750 through a left-upper 1510 path, and a third through a left-right 1540 path. It is connected to the socket 1410c and the external electric wire 780 , and is connected to the fourth socket 1410d and the external electric wire 760 through the left-lower 1560 path.
- the external electric wire 780 connected to the third socket 1410c is connected to the first socket 1410a and the external electric wire 750 by a right-upper 1530 path, and is connected to the left-right 1540 by a second path. It is connected to the socket 1410b and the external electric wire 770 , and is connected to the fourth socket 1410d and the external electric wire 760 through the right-lower 1550 path.
- the external electric wire 760 connected to the fourth socket 1410d is connected to the first socket 1410a and the external electric wire 750 through an up-down 1520 path, and a third through a right-down 1550 path. It is connected to the socket 1410c and the external electric wire 780 , and is connected to the second socket 1410b and the external electric wire 770 through the left-lower 1560 path.
- the power supply unit may be omitted, and the LED 1440 is also used to indicate the path being used, but may be omitted. have.
- communication between the multiple access switch 700 and the main control device 6000 may use various wired/wireless communications such as USART, RS232, CAN, LAN, LIN, WiFi, Bluetooth, and Zigbee as well as RS485 communication.
- wired/wireless communications such as USART, RS232, CAN, LAN, LIN, WiFi, Bluetooth, and Zigbee as well as RS485 communication.
- the switch 1600 may use EV Relays (DC Contactor) used in the charger of an electric vehicle, or a separate switch suitable for the multi-connection switch 700 may be manufactured and used, and the power request operation unit 3000 It can be selected according to the output voltage of the DC/DC converter configured in the , and the maximum output current.
- EV Relays DC Contactor
- a path is formed by controlling the multi-connection switch 700 in advance, and when the path formation is completed, the disconnection switch 3012 is turned ON to supply power and After the charging is completed, the disconnection switch 3012 is turned off and the path formation is released. Accordingly, problems such as arcs can be prevented in advance.
- FIG. 4A two switches are used in one path 1510 , 1520 , 1530 , 1540 , 1550 , and 1560 . Accordingly, if one switch fails in a certain path, problems that may occur due to switch failure can be prevented by controlling the other switch.
- a device such as the demultiplexer 1430 may be used to control the switch 1600 .
- the multiple access switch 700 may include a plurality of demultiplexers 1430 connected to the plurality of switches 1600 by a control line and operating the switches 1600 according to the control of the controller 1420 .
- an element such as the demultiplexer 1430 may be omitted, and may be configured differently depending on elements used to implement the multiple access switch 700 .
- FIG. 4A is a road showing an embodiment according to the present invention.
- the multiple access switch 700 may be implemented in various ways.
- FIG. 4B is a diagram illustrating an example in which only switches necessary for path formation are used in the configuration of FIG. 4A.
- one switch 1600 may be disposed between the two sockets 1410 . That is, one switch 1600 may be disposed per one path 1510 , 1520 , 1530 , 1540 , 1550 , and 1560 .
- a switch is additionally configured in the multiple access switch 700 to prevent problems such as failure, but if a problem such as a failure is prevented or blocked when a problem occurs in a place other than the multiple access switch 700 If this is configured, as shown in FIG. 4B , the switch can be configured using only the number necessary for path formation.
- FIG. 4C is a diagram illustrating an example in which the demultiplexer 1430 is omitted from the configuration of FIG. 4B.
- the plurality of switches 1600 and the controller 1420 may be directly connected with a control line.
- the demultiplexer 1430 may be used when the I/O for controlling the switch 1600 in the controller 1420 is insufficient. If the I/O of the controller 1420 for controlling the switch 1600 is sufficient, the demultiplexer 1430 may be omitted as shown in FIG. 4C . Also, if the switch control voltage level for operating the switch 1600 is different from the I/O output voltage level of the controller 1420 , a circuit for additionally operating the switch 1600 may be configured.
- the wires connected between the sockets 1410a, 1410b, 1410c, and 1410d, the switch 1600, and the switches 1600 may be designed as PCB wires, and the magnitude of the current flowing through the wires Therefore, it can be used by directly connecting a separate wire rather than a PCB wire through soldering.
- the charging adapters 5015 may be disposed between the two multi-connection switches 700 , respectively. Also, between the two multi-connection switches 700 , a plurality of charging adapters 5015 may be disposed.
- FIG. 4D is a diagram illustrating an example of a structure of a multi-access switch configured to have the same number of switches and the same number of paths and to connect two lines according to another embodiment of the present invention.
- the plurality of switches 1600 and the controller 1420 may be directly connected with a control line.
- the magnitude of the current flowing through the multi-connection switch 700 in FIG. 4D is large, it can be configured as a separate line instead of the PCB wiring, and can reduce the contact resistance generated when the plurality of switches 1600 are connected.
- busbar type for 4D shows the inside of a multi-connection switch 700 constructed using copper busbars, and the arrangement is only one example according to the present invention, and is arranged differently, or a different type of material that can reduce contact resistance other than the copper busbar. can be configured using
- various methods of increasing the contact area by filling the space between the electric wire and the copper bus bar with a metal filler may be used.
- a method of lowering the contact resistance by instantaneously spraying lead or an alloy (amalgam, etc.) having a relatively low melting point at a high pressure into the empty space between the electric wire and the copper bar may be used.
- the charging adapter 5015 is connected with a single line between the two multi-connection switches 700 , but several charging adapters 5015 may be connected to each other.
- the number of the charging adapters 5015 is several, the charging adapter 5015 actually used for charging is one of them, and the other charging adapters 5015 may not be used for charging.
- the number of the charging adapters 5015 is regarded as one even if several charging adapters are provided.
- One charging trolley 9000 may be charged first, and the other charging trolley 9000 may be charged when the charging of the charging trolley 9000 is completed or the charging end time is reached. That is, even if the charging adapters 5015 are connected to all charging carts 9000, they can be charged one by one according to priority.
- the charging adapters 5015 may be provided to be detachably attached to the wire network (5000).
- the charging adapters 5015 may be detachably provided in the socket of the wire network 5000 . Heeja Chung dislikes a charging adapter that conforms to the charging protocol of her electric vehicle, and can use it by connecting it to the electric wire network 5000 .
- one charging adapter 5015 may be installed on one parking surface 80 , but one charging adapter 5015 is installed on two parking surfaces 80 as needed. In this case, one charging adapter 5015 may be used to charge any one of the two parking surfaces 80 .
- 6A is another specific embodiment of the present invention. It is a diagram showing an example in which 32 parking surfaces and two requested power operation units are independently configured.
- the total parking surface 80 is 32
- the number of multiple access switches 700 used is 60
- the first request power control unit It is composed of 4 D/Ds of 3010 and 4 D/Ds of the second requested power operation unit 3020.
- the length of the electric wire used to form the electric wire network 5000 in the parking lot is about 998m, and the path to any point is The number of multiple access switches 700 required to form the .
- the multi-connection switch 700 is basically installed on the parking surface, it may be additionally installed in a position such as a passage in order to increase the number of cases for forming an optimal path.
- a total of 12 multiple access switches 700 were additionally installed to form a path.
- This embodiment may be used as a concept of an electric vehicle charging station exclusively for electric vehicles.
- the parking lot was composed of 2.3m X 5.0m, which is the minimum standard for general parking unit division, and 6 meters for the roadway and 0.5m for the pillar according to the perpendicular parking standard, which is only one configuration according to an embodiment of the present invention, parking lot design
- the length can be changed according to the standards at the time, and it can be designed to be larger than the minimum standard for an extended parking unit division, not the minimum standard for a general type parking unit division.
- ring Terminals crimping part inner diameter outside diameter Total length length inner diameter outside diameter 25SQ wire and ring type Use of crimp terminals 8.5mm 16mm 32mm 11.5mm 7.5mm 10mm 100SQ wire and Ring type crimp terminal 12.9mm 24mm 49.5mm 19.5mm 15.6mm 20mm 100SQ wire and Using copper busbars 20x3 mm2
- a current of 125A was supplied using a 100SQ wire and a ring-type crimp terminal in a charging system using an electric vehicle charger, and the measured voltage drop by the wire was 0.02V/m on average, and per one multi-connection switch 700 The generated voltage drop was measured to be 0.05V on average.
- a contact resistance of 0.0204 ⁇ occurs, resulting in an average voltage drop of 2.55V, and an average voltage drop per 25m is 3.1V. was measured with
- a 125A current was supplied using a 100SQ wire and a copper bus bar in a charging system using an electric vehicle charger, and the voltage drop by the measured wire was 0.02V/m on average, and the The voltage drop was measured as 0.05V on average.
- a contact resistance of 0.0105 ⁇ occurs, and the measured voltage drop due to this is measured as 1.31V on average, and the voltage drop per 25m is 1.86V on average. was measured and the contact resistance may vary depending on the thickness of the wire and the contact area of the crimped terminal.
- the average length of the wire used for path formation is from about 0.16V to about 0.5V from a minimum of 8m to a maximum of 25m, and the voltage drop by the relay is 0.05V per unit.
- the voltage drop due to the length and the voltage drop due to the relay are measured to a level that can be sufficiently compensated.
- the parking lot is a parking lot of a multi-family house such as an apartment or a villa, a paid/free parking lot, a public parking lot, a parking lot of a service area, It may be a commercial charging station, etc., and when installed in an outdoor parking lot, it may be configured by separately adding new and renewable energy generation such as solar power as well as the charging system according to an embodiment of the present invention.
- FIG. 6B It is a diagram showing an example of a configuration in which multiple access switches 700 located on adjacent parking surfaces are bundled into one line and managed in units of multiple access switch lines according to an embodiment.
- FIG. 6B since adjacent multiple access switches 700 are horizontal, one horizontal line is grouped into one multiple access switch line and managed.
- FIG. 6b even if each multiple access switch line is adjacent, up to 32 can be bundled into one line for smooth communication.
- the multiple access switch line forms or cancels a path by controlling the multiple access switches 700 through communication with a control device (server, PC, etc.).
- the maximum number is 32 in the multi-connection switch line, this is only an example according to the embodiment and may be more or fewer.
- the communication method used when the multiple access switch line communicates between the multiple access switch 700 or the multiple access switch line and the control device (server, PC) is RS485, P-NET, R-NET, PLC, Various methods for wired communication or wireless communication, such as CAN, LAN, LIN, Bluetooth, Zigbee, and Beacon, may be used.
- 6C is a view showing an example of a configuration for managing adapters or adapter storage boxes located on adjacent parking surfaces in a single line in units of adapters or adapter storage boxes according to an embodiment of the present invention.
- adapters or adapter storage boxes are installed one at a time on each parking surface.
- the adapter can be installed directly without the adapter holder, but you can install an adapter holder that includes a separate adapter.
- the adapter or adapter storage box may serve to supply or block electric power supplied from the charger through a path formed by using the multiple access switch 700 to the electric vehicle.
- the adapter or adapter storage box continuously monitors electric vehicle battery information, etc. through the communication line of the adapter connected to the electric vehicle. It continuously communicates by sending it to the control device (server, PC). If an emergency situation occurs or a separate request to stop charging is received, information is exchanged with the control device (server, PC) quickly.
- adapter or adapter storage line manage with In the above adapter or adapter storage line, 4 is described, but this is only an example according to an embodiment and may be more or less.
- the communication method used when the adapter or adapter storage line communicates between the adapter or the adapter storage box or the adapter or adapter storage line and the control device (server, PC) is RS485, P-NET, R-NET, PLC, Various methods for wired communication or wireless communication such as CAN, LAN, LIN, Bluetooth, Zigbee, and Beacon may be used.
- FIG. 7A is a diagram illustrating an example in which two requested power operation units are independently configured according to an embodiment of the present invention.
- electric vehicles and internal combustion engine vehicles can be freely parked, the total parking surface 80 is 80 surfaces, and the number of multiple access switches 700 used is 116.
- 2 D/Ds of the first power request operation unit 3010, 2 D/Ds of the second power request operation unit 3020, 2 D/Ds of the third power request operation unit 3030, and a fourth request operation unit (3040) consists of two D/Ds
- the length of the electric wire used to form the electric wire network 5000 in the parking lot is about 2,315 m
- the number of multiple connection switches 700 required to form a route to an arbitrary point is average. 6, with a minimum of 2 and a maximum of 10.
- the multi-connection switch 700 is basically installed on the parking surface, it may be additionally installed in a position such as a passage in order to increase the number of cases for forming an optimal path.
- a total of 20 multiple access switches 700 were additionally installed to form a path.
- the parking lot was composed of 2.3m X 5.0m, which is the minimum standard for general parking unit division, and 6 meters for the roadway and 0.5m for the pillar according to the perpendicular parking standard, which is only one configuration according to an embodiment of the present invention, parking lot design
- the length can be changed according to the standards at the time, and it can be designed to be larger than the minimum standard for an extended parking unit division, not the minimum standard for a general type parking unit division.
- the parking lot may be a parking lot of a multi-family house such as an apartment or a villa, a paid/free parking lot, a public parking lot, a parking lot of a rest area, a commercial charging station, etc.
- a multi-family house such as an apartment or a villa
- a paid/free parking lot such as a public parking lot
- a parking lot of a rest area such as a commercial charging station, etc.
- renewable energy generation such as solar power generation.
- FIG. 7B is a view showing an example of a configuration in which multiple access switches 700 located on adjacent parking surfaces are bundled into one line and managed in units of multiple access switch lines according to an embodiment of the present invention.
- adjacent multiple access switches 700 are horizontal, one horizontal line is bundled into one multiple access switch line and managed.
- up to 32 can be bundled into one line for smooth communication.
- the multiple access switch line forms or cancels a path by controlling the multiple access switches 700 through communication with a control device (server, PC, etc.).
- a control device server, PC, etc.
- the communication method used when the multiple access switch line communicates between the multiple access switch 700 or the multiple access switch line and the control device (server, PC) is RS485, P-NET, R-NET, PLC, Various methods for wired communication or wireless communication such as CAN, LAN, LIN, Bluetooth, Zigbee, and Beacon may be used.
- FIG. 7c is a diagram illustrating an example of a configuration for managing adapters or adapter storage boxes located on adjacent parking surfaces in a single line in units of adapters or adapter storage boxes according to an embodiment of the present invention.
- adapters or adapter storage boxes are installed one by one on each parking surface.
- the adapter can be installed directly without the adapter holder, but you can install an adapter holder that includes a separate adapter.
- the adapter or adapter storage box may serve to supply or block electric power supplied from the charger through a path formed by using the multiple access switch 700 to the electric vehicle.
- the adapter or adapter storage box continuously monitors electric vehicle battery information, etc. through the communication line of the adapter connected to the electric vehicle. It continuously communicates by sending it to the control device (server, PC). If an emergency situation occurs or a separate request to stop charging is received, information is exchanged with the control device (server, PC) quickly.
- adapter or adapter storage line manage with In the above adapter or adapter storage line, 4 is described, but this is only an example according to an embodiment and may be more or less.
- the communication method used when the adapter or adapter storage line communicates between the adapter or the adapter storage box or the adapter or adapter storage line and the control device (server, PC) is RS485, P-NET, R-NET, PLC, Various methods for wired communication or wireless communication such as CAN, LAN, LIN, Bluetooth, Zigbee, and Beacon may be used.
- FIG. 8A is a flowchart illustrating a method of compensating for a voltage drop that varies according to path formation in the electric vehicle charging system of the present invention.
- the voltage is measured at the adapter or adapter holder.
- the measured voltage is compared with the battery voltage required for charging the connected electric vehicle, and if it is higher or lower than the battery voltage required for charging, the charger adjusts the insufficient voltage using a control device (server, PC).
- the charger is not a fixed voltage, but is configured to control the output, for example, 370V to 410V, and if the voltage measured by the adapter or adapter storage box is low, the insufficient voltage is added and supplied from the charger. If the voltage measured by the adapter or adapter storage box is high, the excess voltage is subtracted and supplied by the charger.
- FIG. 8B is a flowchart illustrating a method of compensating for a voltage drop that varies according to path formation in an electric vehicle charging system of the present invention according to another embodiment.
- a charging path is formed in the system and charging is started, information such as voltage and current of the battery is received from the electric vehicle connected to the charging adapter and compared with the battery voltage required for charging the electric vehicle, it is higher or lower than the battery voltage required for charging.
- the charger adjusts the insufficient voltage using the control device (server, PC).
- the charger is not a fixed voltage, but is configured to control the output, for example, 370V to 410V, and if the voltage received from the battery is lower than the voltage required for charging the battery, the insufficient voltage is added and supplied from the charger. If the voltage received from the battery is higher than the voltage required to charge the battery, the excess voltage is subtracted and supplied from the charger.
- 8C is a flowchart illustrating a method of compensating for a voltage drop that varies according to path formation in an electric vehicle charging system of the present invention according to another embodiment.
- the measured voltage is compared with the battery voltage required for charging the connected electric vehicle. Controlled by the charger.
- the charger is not a fixed voltage, but is configured to control the output, for example, 370V to 410V, and if the voltage measured by the adapter or adapter storage box is low, the insufficient voltage is added and supplied from the charger. If the voltage measured by the adapter or adapter storage box is high, the excess voltage is subtracted and supplied by the charger.
- FIG. 8D is a flowchart illustrating a method of compensating for a voltage drop that varies according to path formation in an electric vehicle charging system of the present invention according to another embodiment.
- an automatic voltage regulator (AVR) is additionally configured between the transformer and the AC/DC converting system 2000. AVR) can be used to compensate for the voltage drop.
- the voltage is measured at the adapter or adapter holder.
- the measured voltage is compared with the battery voltage required for charging the connected electric vehicle, and if it is higher or lower than the battery voltage required for charging, the insufficient voltage is transmitted to the automatic voltage regulator (AVR) using a control device (server, PC).
- the automatic voltage regulator (AVR) may adjust the magnitude of the AC voltage output according to the control signal input from the control device (server, PC), and accordingly, the DC voltage converted in the AC/DC converting system 2000 .
- the magnitude and magnitude of the output voltage of the charger can be adjusted.
- the output of the charger is not a fixed voltage, for example, if the voltage output from the automatic voltage regulator (AVR) is 380V to 420V, the output voltage of the AC/DC converting system 2000 is 370V to 410V, and accordingly the output of the charger can be configured so that the output voltage of the charger can be adjusted according to the magnitude of the voltage input to the charger through the AC/DC converting system 2000 so that the variable voltage of the automatic voltage regulator (AVR) is 370V to 410V, and if the adapter Alternatively, if the voltage measured in the adapter storage box is low, the voltage is added by the insufficient voltage and supplied by the automatic voltage regulator (AVR). If the voltage measured by the adapter or adapter storage is high, the excess voltage can be subtracted and supplied by the automatic voltage regulator (AVR).
- the output voltage of the automatic voltage regulator is 380V to 420V
- the output voltage of the AC/DC converting system 2000 is 370V to 410V
- the output voltage of the charger is 370V to 410V. This is only a numerical value for explaining the present invention, and the output voltages may be changed as needed.
- a regulator A regulator
- the power request operation unit 3000 includes a current fixed D/D 3021, a current fixed D/D 3022 for parallel connection, a single wire connection switch 3023, and a multi-connection switch. 700 may be included.
- the second DC/DC converter group 42 of FIG. 9 has the disadvantage of being able to supply only the charging speed (requested power) that can be provided by the first DC/DC converter group 41 consisting only of the current fixed D/D 3011 .
- the current fixed D/D 3022 for parallel connection is connected in parallel to the current fixed D/D 3021, and more diverse charging rates (requested power) can be supplied through the combination of the two D/Ds. have.
- the charging rate (requested power) supplied from the current fixed D/D 3022 for parallel connection to the charging rate (requested power) of the current fixed D/D 3021 through the control of the multiple access switch 700 can be supplied together.
- the current fixed D/D 3021 and the current fixed D/D 3022 for parallel connection can be configured with charging rates (requested power) of various sizes, and This combination has the advantage of being able to supply the desired charging speed (requested power) as much as possible.
- the number of the fixed current D/Ds 3021 and the fixed current D/Ds 3022 for parallel connection may vary depending on the number of vehicles capable of simultaneous charging in the charging system according to the present invention.
- the current fixed D/D 3021 of the second DC/DC converter group 42 is selected or the current fixed D/D 3021 is selected according to the charging speed (requested power) of Heeja Chung. ) and the current fixed D/D 3022 for the parallel connection, the charging speed (requested power) requested by Chung-hee can be selected.
- an optimal path is formed from the electric wire network 5000 in the parking lot to the location of the charging truck 9000, and when the path is completed, the disconnection connection switch 3012 of the request power control unit 3000 is turned ON to charge Speed (requested power) can be supplied.
- 10A to 10D are diagrams illustrating the number of selectable paths according to the shape of a wire network according to an embodiment of the present invention.
- 10A to 10D show examples of triangular, quadrangular, hexagonal, and hexahedral structures, but these are only examples according to an embodiment of the present invention, and various three-dimensional structures such as polygons such as pentagons or heptagons or tetrahedrons can be configured.
- an output path in which a wire corresponding to the input path can be selected is the same as the number of remaining wires except for the wire corresponding to the input path.
- x has a range of 1 or more and n-1 or less.
- Figure 11a shows a method of charging using a multi-connection switch and a network-type electric wire network, which are the core of the present invention, as an AC power delivery system of relatively low-speed charging rather than direct current.
- FIG. 11A it includes a transformer 1000 , an AC power delivery system 5500 , a charger truck 9000 , a screen display 9100 , and a control unit 400 .
- the magnitude of the AC voltage converted by the transformer 100 may vary depending on the magnitude of the AC voltage used in the AC power delivery system 5500 using the power produced in the power plant, and the AC voltage converted in consideration of conversion efficiency, etc. size is determined
- HVDC high-voltage direct current
- FIG. 11A Comparing FIG. 11A and FIG. 1, in FIG. 1, D/D using DC power is used for the requested power control unit, but in FIG. 11A, the requested power control unit is configured using an AC/AC converter using AC power. do.
- 11b is the same as most of the systems of FIG. 11a, but additionally comprises a renewable generator 100 such as solar power, an ESS 200, a DC/AC inverter 210, and a power system management 300, It shows the overall block diagram of the system in which renewable energy is combined.
- a renewable generator 100 such as solar power
- an ESS 200 a DC/AC inverter 210
- a power system management 300 It shows the overall block diagram of the system in which renewable energy is combined.
- the renewable generator 100 such as solar power may include a renewable generator such as solar power generation, wind power generation, and the like.
- photovoltaic power generation is a power generation method for generating power by converting sunlight into direct current electricity, and power can be produced using a photovoltaic panel to which several solar cells are attached.
- the output voltage is determined according to the configuration of solar cells and the current produced according to the intensity of light varies, so that the power produced according to the intensity of the light continues to change. Since the charging system according to the present invention has to supply the charging rate (requested power) requested by Chung Hee-ja, the ESS 200 can store the power produced by the photovoltaic power generation to supply a stable charging rate (requested power).
- the power produced like the photovoltaic power generation is direct current, it is converted and stored according to the charging voltage of the ESS 200 using a DC/DC converter, and when the power produced like the wind power generation is alternating current, Save using an AC/DC converter.
- the solar power generation and the wind power generation have been described as examples, but various renewable power generation methods may be used without being limited to the corresponding power generation method.
- the ESS 200 refers to an energy storage device and may include various devices for configuring the ESS 200 such as a battery, a battery management device (BMS), a power management device (PMS), and the like, and if necessary, the device may be added or omitted.
- BMS battery management device
- PMS power management device
- the ESS 200 can be charged with new and renewable energy, for example, when using solar power, it can be charged during the day, but it cannot be charged normally, such as at night or on a dark day, or when the electricity rate is low, it is a transformer. It may be charged with power supplied from 1000 .
- the output voltage of the battery of the ESS 200 is direct current, it can be supplied after being converted into AC power used in the AC power delivery system 500 using the DC/AC inverter 210 and supplied from the transformer 1000 .
- An AC/DC converter may be additionally configured to charge the battery of the ESS 200 with the available power.
- the DC/AC inverter 210 is used to convert the DC power of the ESS 200 into AC, but uses the power supplied from the transformer 1000 to charge the battery of the ESS 200 .
- a converter may be additionally configured.
- the power system management 300 supplies the power of the transformer 1000 to the AC power delivery system 500 or uses the energy stored in the ESS 200 to supply the AC power delivery system 500, etc. It plays a role in controlling the power to be used according to the situation.
- the power system management 300 can charge the battery of the ESS 200 with the power supplied from the transformer 1000 when the remaining amount of charge of the ESS 200 is low. It is possible to control such as selling the energy stored in the ESS 200 to an electricity supplier.
- 12A is an example of the overall structure from the transformer 1000 to the charging adapter 5015 where the charging vehicle 9000 is located according to an embodiment of the present invention. 1100 , and an AC power delivery system 500 .
- the AC power delivery system 5500 of FIG. 12A is a configuration in which the first to fifth AC power delivery systems 5510 , 5520 , 5530 , 5540 and 5550 are connected to the allowable power amount management device.
- AC power delivery system 5500 is composed of five, this is only an example according to an embodiment of the present invention, and the number may be more or less.
- 12A illustrates the first AC power delivery system 5510 among the first to fifth AC power delivery systems 5510, 5520, 5530, 5540, and 5550 as an example.
- the AC power of the AC/AC converter 3001 in the first to fifth AC power delivery systems 5510, 5520, 5530, 5540, and 5550 may use AC power of the same size, and may have different sizes as needed. AC power can be used.
- the voltage of the power source used herein may be naturally generated and used in various ways by those skilled in the art according to their needs.
- the charging standard voltage of an electric vehicle is 220V and 380V, both can be accommodated in consideration of the ratio of the two vehicles.
- the detailed structure of the first to fifth AC power delivery systems (5510, 5520, 5530,5540, 5550) of the request power operation unit 3000, the relay connection wire network 4000, and the wire network 5000 in the parking lot is It may be the same, or may be configured differently according to need.
- FIG. 12B is an example of the overall structure from the transformer 1000 according to the embodiment of the present invention to the charging adapter 5015 where the charging vehicle 9000 is located, as shown in FIG. 12A , the transformer 1000 , an allowable power management device 1100 , a renewable generator 100 such as solar power, an ESS 200 , and an AC power delivery system 5500 .
- the renewable generator 100 such as road solar power combined with renewable energy in FIG. 2A may include a renewable generator such as solar power generation and wind power generation.
- a renewable generator such as solar power generation and wind power generation.
- photovoltaic power generation is a power generation method for generating power by converting sunlight into direct current electricity, and power can be produced using a photovoltaic panel to which several solar cells are attached.
- the output voltage is determined according to the configuration of solar cells and the current produced according to the intensity of light varies, so that the power produced according to the intensity of the light continues to change. Since the charging system according to the present invention has to supply the charging rate (requested power) requested by Chung-hee, the ESS 200 can store the power produced by the photovoltaic power generation to supply a stable charging rate (requested power).
- the power produced like the photovoltaic power generation is direct current, it is converted and stored according to the charging voltage of the ESS 200 using a DC/DC converter, and when the power produced like the wind power generation is alternating current, It can be saved using an AC/DC converter.
- the solar power generation and the wind power generation have been described as examples, but various renewable power generation methods may be used without being limited to the corresponding power generation method.
- the ESS 200 means an energy storage device, and may include various devices for configuring the ESS 200 such as a battery, a BMS (battery management device), and a PMS (power management device). may be added or omitted.
- the output voltage of the battery of the ESS 200 is direct current, it can be converted into AC power used in the AC power delivery system 5500 using a DC/AC converter and then supplied, and the power supplied from the transformer 1000
- An AC/DC converter may be additionally configured to charge the battery of the ESS 200 .
- solar power generation has been described as an example, but it is not limited to the above power generation method, and various new and renewable power generation methods such as wind power may be used.
- FIGS. 13A to 13I show an example in which a path is formed from the road multiple access switch 700 to the up-down 1520 showing an example of the operation of the multi-access switch.
- the configuration of the multiple access switch 700 in FIGS. 13A to 13I consists of only a switch and a wire to explain the operation of the multiple access switch 700 .
- the switch c located between the upper wire 750 connected to the first socket 1410a and the lower wire 760 connected to the fourth socket 1410d to form a path
- the upper-lower (1520) form a path.
- the other two switches connected to the upper wire 750, a switch a, a switch b, and a switch e connected to the lower wire 760, and the switch f maintain an OFF state.
- 13B shows an example in which a path is formed from the multiple access switch 700 to the left-right 1540, and the left end wire 770 and the third socket ( 1410c), the switch d located between the right end wire 780 connected to the ON is turned on to form a left-right 1540 path, in this case another switch a, switch e and the right end wire connected to the left end wire 770 The other switches b and f connected to 780 remain OFF.
- 13c shows an example in which a path is formed from the multi-connection switch 700 to the left-upper 1510, and the switch a located between the left end electric wire 770 and the upper electric wire 750 is turned on to form the route.
- the left-upper 1510 path is formed, and in this case, the other switch d connected to the left end wire 770 , the switch e and the other switch b connected to the upper wire 750 , and the switch c maintain an OFF state.
- 13d shows an example in which a path is formed from the multi-connection switch 700 to the right-phase 1530, and for the path formation, the switch b located between the right end wire 780 and the upper wire 750 is turned on.
- a right-phase 1530 is formed, and in this case, the other switch d connected to the right end wire 780, the switch f and the other switch a connected to the upper electric wire 750, and the switch c maintain an OFF state.
- 13e shows an example in which a path is formed from the multi-connection switch 700 to the left-bottom 1560, and the switch e located between the left end electric wire 770 and the lower end electric wire 760 is turned on to form the path.
- a left-bottom (1560) path is formed, and in this case, the other switch a connected to the left end wire 770, the switch d and the other switch c connected to the lower electric wire 760, and the switch f maintain an OFF state.
- 13f shows an example in which a path is formed from the multi-connection switch 700 to the right-bottom 1550, and the switch f located between the right-end wire 780 and the lower-end wire 760 is turned on for the path formation.
- a right-bottom 1550 path is formed, and in this case, the other switch b connected to the right end wire 780, the switch d and the other switch c connected to the lower wire 760, and the switch e maintain an OFF state.
- 13g shows an example in which two paths that do not overlap each other are formed in the multi-connection switch 700, up-down 1520 and left-right 1540, and the upper wire ( 750) and the switch c located between the lower wire 760 is turned on, and the switch d located between the left-end wire 770 and the right-end wire 780 is turned on to form the left-right 1540 path, and the path Switch a, switch b, switch e, and switch f not used in the formation remain OFF.
- 13H shows an example in which two non-overlapping paths are formed in the multi-connection switch 700 to the left-top 1510 and right-bottom 1550, and the left end wire for forming the left-top 1510 path. Turn on the switch a located between the 770 and the upper electric wire 750 and turn on the switch f located between the right end electric wire 780 and the lower electric wire 760 to form the right-lower 1550 path, and the path Switch b, switch c, switch d, and switch e not used in the formation remain OFF.
- 13i shows an example in which two paths that do not overlap each other are formed in the multiple access switch 700, left-bottom 1560 and right-top 1530, and the left end wire for forming the left-bottom 1560 path. Turn on the switch e located between the 770 and the lower electric wire 760 and turn on the switch b located between the right end electric wire 780 and the upper electric wire 750 to form the right-phase 1530 path, and the path Switch a, switch c, switch d, and switch f not used in the formation remain OFF.
- 13j shows an example in which a path is formed in the up-down 1520 in the multi-connection switch 700 in which the number of switches is configured to be greater than the number of paths, and between the upper wire 750 and the lower wire 760 to form the route.
- the switch b and switch k located in are turned ON, and in this case, the other switch a connected to the upper wire 750, the other switch j connected to the switch c and the lower wire 760, and the switch l maintain the OFF state.
- the switch d and switch j connected to the left end wire 770 in the path formation, and the switch g and i connected to the right end electric wire 780 also maintain an OFF state. That is, the switches that can be connected to the upper wire 750 and the lower wire 760 maintain an OFF state.
- FIG. 14 is a diagram illustrating an example of supplying from the DC/DC converter group 41 to the charging adapter 5015 by combining the charging rates according to the request of Chung Hee-ja.
- the multi-connection switch 700 connects the switch by selecting one of three paths for the wires connected to the multi-connection switch 700 from the outside. Therefore, the switches connected to each wire are basically phase- A total of six paths can be formed: bottom 1520, left-right 1540, left-top 1510, left-bottom 1560, right-top 1530, and right-bottom 1550.
- the multiple access switch 700 forms the six paths, and if the two paths do not overlap each other as shown in a of FIG. 14 , two paths may be formed in one of the multiple access switch 700 . have.
- selective charging connection paths 2710 , 2720 , 2730 , and 2740 can be formed in various ways by the operation of the internal switch 1600 of the multiple access switches 700 . Accordingly, it is possible to respond to a larger number of parking surfaces 80 with a small number of DC/DC converters, and more parking surfaces 80 can be utilized as a parking area capable of charging an electric vehicle.
- 15 is a diagram illustrating an example of supplying from the DC/DC converter group 42 to the charging adapter 5015 by combining the charging rates according to the request of Chung Hee-ja.
- the wires connected to the multi-connection switch 700 from the outside select one or more of three paths to connect the switches.
- the multiple access switch 700 forms the six paths, but the multiple access switch 700 may form two non-overlapping connection paths. According to circumstances, at least one multiple access switch 700 among a plurality of multiple access switches 700 forming a path may form two non-overlapping connection paths.
- the two connection paths may be respectively connected to different DC/DC converters.
- the power request operation unit 3000 includes a plurality of first DC/DC converters 3011 and a plurality of second DC/DC converters 3022 that may be connected in parallel to the first DC/DC converter 3011 . ) may be included.
- the two connection paths may include a connection path connected to one of the first DC/DC converters 3011 and a connection path connected to one of the second DC/DC converters 3022 .
- the first DC/DC converter 3011 is a fixed current D/D
- the second DC/DC converter 3012 is a fixed current D/D for parallel connection to the current fixed D/D 3011 . It may be D 3022 .
- FIG. 15 a, b, and c In the case of combining the charging speed according to the request of the user as shown in FIG. 20B , two paths are connected in parallel as shown in FIG. 15 a, b, and c to combine the charging speed. 15 a, b, and c, paths 2811, 2821, 2831 connected to the fixed current D/D 3011 and paths 2812, 2822, 2832 connected to the fixed current D/D 3022 for parallel connection, respectively. ) is laminated, and may be connected to the adapter 3015 for charging the electric vehicle through common paths 2810 , 2820 , and 2830 .
- the charging speed when combining the charging speed, it may be combined at the edge as in c, or the charging rate may be combined in the inside as in a or b, which is a current fixed type D/D (3011) and a current fixed type D for parallel connection.
- the combination of /D 3022 may vary depending on the optimal path.
- the selective charging connection paths 2810 , 2820 , 2830 , and 2840 can be formed in various ways by the operation of the internal switch 1600 of the multiple access switches 700 . Accordingly, it is possible to respond to a larger number of parking surfaces 80 with a small number of DC/DC converters, and more parking surfaces 80 can be utilized as a parking area capable of charging an electric vehicle.
Abstract
Description
링 | 단자 | 압착부 | ||||
내경 | 외경 | 총 길이 | 길이 | 내경 | 외경 | |
25SQ 전선과 링타입 압착단자 사용 |
8.5mm | 16mm | 32mm | 11.5mm | 7.5mm | 10mm |
100SQ 전선과 링타입 압착단자 사용 |
12.9mm | 24mm | 49.5mm | 19.5mm | 15.6mm | 20mm |
100SQ 전선과 구리 버스바 사용 |
20x3 ㎟ |
25SQ 링타입 압착단자 |
거리 | 25m | 50m | 75m | 100m | |
충전기 | DC 출력 전압 | 79.0V | 80.0V | 80.9V | 81.7V | |
DC 출력 전류 | 15.5A | 15.5A | 15.5A | 15.5A | ||
동작 모드(CC/CV) | CC | CC | CC | CC | ||
다중접속스위치 | 앞쪽 전압 | 78.19V | 78.15V | 78.06V | 78.03V | |
뒤쪽 전앞 | 78.14V | 78.09V | 78.01V | 77.99V |
100SQ 링타입 압착단자 |
거리 | 25m | 50m | 75m | 100m | |
충전기 | DC 출력 전압 | 388.4V | 391.5V | 394.7V | 397.8V | |
DC 출력 전류 | 125A | 125A | 125A | 125A | ||
동작 모드(CC/CV) | CC | CC | CC | CC | ||
다중접속스위치 | 앞쪽 전압 | 385.29V | 385.22V | 385.04V | 384.85V | |
뒤쪽 전앞 | 385.24V | 385.16V | 384.99V | 384.81V |
100SQ 구리 버스바 |
거리 | 25m | 50m | 75m | 100m | |
충전기 | DC 출력 전압 | 390.1V | 391.7V | 393.6V | 395.4V | |
DC 출력 전류 | 125A | 125A | 125A | 125A | ||
동작 모드(CC/CV) | CC | CC | CC | CC | ||
다중접속스위치 | 앞쪽 전압 | 388.25V | 388.04V | 387.52V | 387.19V | |
뒤쪽 전앞 | 388.19V | 387.99V | 387.47V | 387.14V |
Claims (14)
- 길이방향의 도체로 외부에서 연결된 전기 인입과 인출이 가능한 복수개 방향의 접점;상기 접점들을 상호 연결하는 길이방향의 도체로 형성된 내부배선들;상기 내부배선 중 어느 한 부분을 연결하거나 끊는 역할을 할 수 있는 상기 해당 내부배선에 설치되는 하나 이상의 스위치; 및상기 스위치를 온 또는 오프할 수 있는 제어부;를 포함하는 다중접속스위치.
- 청구항 1에 있어서,상기 길이방향의 도체는 전선이나 부스바 중 어느 하나이고 접점은 소켓인 것을 특징으로 하는 다중접속스위치.
- 청구항 1 내지 청구항 2 중 어느 한 항에 있어서,상기 어느 내부배선이라도 하나 이상의 상기 스위치가 설치되어 있어서 상기 복수개의 방향 중 어느 한 방향에서 인입된 전기라도 인입된 방향으로 제외한 방향 중 어느 방향으로라도 선택적으로 인출될 수 있는 것을 특징으로 하는 다중접속스위치.
- 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,상기 복수개 방향의 접점은 4 개의 방향의 접점이고 상기 스위치는 릴레이인 것을 특징으로 다중접속스위치.
- 청구항 1, 청구항 2, 혹은 청구항 4 중 어느 한 항에 있어서,6 개의 전기가 전달되는 전기 경로의 형성을 가능하게 하는 것을 특징으로 하는 다중접속스위치.
- 청구항 5에 있어서,상기 어느 두 방향의 접점을 연결하는 내부배선 상의 상기 스위치가 온하여 전기경로를 형성하면 동시에 전기경로를 형성할 수 있는 것은 상기 두 방향의 접점을 제외한 나머지 두 방향의 접점을 연결하는 내부배선에 의한 전기경로만이 가능하게 되는 것을 특징으로 하는 다중접속스위치.
- 청구항 4 혹은 청구항 6 중 어느 한 항에 있어서,상기 제어부의 제어에 따라 상기 스위치를 동작시키는 복수개의 디멀티플렉서;를 더 포함하는 것을 특징으로 하는 다중접속스위치.
- 청구항 1 혹은 4 중 어느 한 항에 있어서,연결경로를 표시하는 LED;를 더 포함하는 다중접속스위치.
- 청구항 1에 있어서,메인제어장치와의 신호를 송수신하는 통신선;을 더 포함하는 다중접속스위치.
- 교류 전원을 직류 전원으로 변환하는 AC/DC 컨버팅 시스템;상기 AC/DC 컨버팅 시스템의 출력단에 연결되는 DC/DC 컨버터, 및, 상기 각 DC/DC 컨버터의 출력단에 연결되는단선연결 스위치를 포함하는 요청전력조작부;주차장의 주차공간들 중 적어도 일부에 설치된 충전용 어댑터들;상기 DC/DC 컨버터와 상기 충전용 어댑터들 사이에서 상기 DC/DC 컨버터와 상기 충전용 어댑터들을 연결할 수 있는 전선망; 및,상기 전선망의 3개 이상의 전선과 연결되고, 상기 3개 이상의 전선 중 일부 전선들을 연결하여 선택적으로 연결 경로를 형성할 수 있는 다중접속스위치;를 포함하고,상기 다중접속스위치는,길이방향의 도체로 외부에서 연결된 전기 인입과 인출이 가능한 복수개 방향의 접점;상기 접점들을 상호 연결하는 길이방향의 도체로 형성된 내부배선들;상기 내부배선 중 어느 한 부분을 연결하거나 끊는 역할을 할 수 있는 상기 해당 내부배선에 설치되는 하나 이상의 스위치; 및상기 스위치를 온 또는 오프할 수 있는 제어부;를 포함하고,상기 어느 내부배선이라도 하나 이상의 상기 스위치가 설치되어 있어서 상기 복수개의 방향 중 어느 한 방향에서 인입된 전기라도 인입된 방향으로 제외한 방향 중 어느 방향으로라도 선택적으로 인출될 수 있는 것을 특징으로 하는 충전위치 선택형 전기자동차 충전시스템.
- 청구항 10에 있어서,상기 다중접속스위치의 동작으로, 상기 DC/DC 컨버터, 상기 전선망, 및, 상기 충전용 어댑터들 중에서 전기자동차와 연결된 충전용 어댑터가 상기 선택적으로 형성된 연결경로로 연결되는 충전위치 선택형 전기자동차 충전시스템.
- 청구항 10에 있어서,상기 DC/DC 컨버터의 개수보다 상기 충전용 어댑터의 개수가 더 많은 것을 특징으로 하는 충전위치 선택형 전기자동차 충전시스템.
- 청구항 10 내지 청구항 12 중 어느 한 항에 있어서,상기 다중접속스위치의 상기 복수개 방향의 접점은 4 개의 방향의 접점인 것을 특징으로 충전위치 선택형 전기자동차 충전시스템.
- 청구항 10 내지 청구항 13 중 어느 한 항에 있어서,다중접속스위치는 6 개의 전기가 전달되는 전기 경로의 형성을 가능하게 하고, 상기 어느 두 방향의 접점을 연결하는 내부배선 상의 상기 스위치가 온하여 전기경로를 형성하면 동시에 전기경로를 형성할 수 있는 것은 상기 두 방향의 접점을 제외한 나머지 두 방향의 접점을 연결하는 내부배선에 의한 전기경로만이 가능하게 되는 것을 특징으로 하는 충전위치 선택형 전기자동차 충전시스템.
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CN202280010050.0A CN116762149A (zh) | 2021-01-26 | 2022-01-24 | 多路连接开关及包括其的充电位置选择型电动汽车充电系统 |
EP22746179.5A EP4287231A1 (en) | 2021-01-26 | 2022-01-24 | Multiple connection switch, and charging location-selective electric vehicle charging system comprising same |
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KR102415686B1 (ko) * | 2021-01-26 | 2022-07-01 | 주식회사 에프이씨 | 충전위치 선택형 전기자동차 충전 방법 및 시스템 |
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