Charging point unit for charging electrical energy storage devices of electric vehicles

Abstract

A charging point unit (1) for charging electrical energy storage devices of electric vehicles is shown and described, wherein the charging point unit has a first section (3) which can be inserted into a floor section, a drive unit and a second section (5), wherein the second section (5) can be moved relative to the first section (3) from a retracted position to an extended position and from the extended position to the retracted position by means of the drive unit.

Description

[0001] The present invention relates to a charging point unit for charging electrical energy storage devices of electric vehicles.

[0002] Charging point units for charging electrical energy storage devices of electric vehicles are known from the state of the art.

[0003] In general, it is desirable to improve the functionality of charging point units for charging the electrical energy storage systems of electric vehicles.

[0004] It is therefore the object of the present invention to provide a charging point unit for charging electrical energy storage devices of electric vehicles with improved functionality.

[0005] According to one aspect of the invention, the aforementioned problem is solved by a charging point unit with the features of claim 1. The charging point unit is designed for charging electrical energy storage devices of electric vehicles, wherein the charging point unit comprises a first section that can be inserted into a floor section, a drive unit, and a second section, wherein the second section can be moved relative to the first section from a retracted position to an extended position and from the extended position to the retracted position by means of the drive unit. The charging point unit has advantageous features compared to the prior art, which are explained in detail below.

[0006] In summary, it can be stated that a charging point unit for charging the electrical energy storage systems of electric vehicles is provided with improved functionality.

[0007] The charging point unit is designed for use in an electric vehicle charging network. This charging network can be a system known from the prior art. These systems can be used for electric vehicle energy storage devices. Using these charging networks, electric vehicle energy storage devices can be supplied with electrical energy to charge them. For example, battery cells in electric vehicle energy storage devices can be charged with direct current.

[0008] For example, an electric vehicle may be equipped with a charger that, in so-called AC charging or three-phase charging, converts the alternating current supplied by a charging station into the direct current required by the electrical energy storage device. This process can also be described as rectification, in order to charge the electrical energy storage device. In so-called DC charging, direct current from the charging station is fed directly into the vehicle, with the direct current being supplied by a charger at the charging station.

[0009] The electric charging network system can also be configured as follows. The electric charging network system is configured for charging the electrical energy storage systems of electric vehicles. The electric charging network system comprises at least one first distribution unit, at least one second distribution unit, and at least one charging point unit, whereby each charging point unit of the at least one charging point unit can be configured like the charging point unit already described.Each first distribution unit of the at least one first distribution unit has an electrical connection unit with which the first distribution unit can be connected to a third distribution unit of the electrical charging network system, which is configured to supply electrical energy at a voltage on a first voltage level, or to a component of a first voltage level, such that the first distribution unit can be supplied with electrical energy at a voltage on a first voltage level. Each first distribution unit is configured to supply electrical energy at a voltage on a second voltage level. Each second distribution unit of the at least one second distribution unit is connected to a corresponding first distribution unit such that the second distribution unit can be supplied with electrical energy at a voltage on the second voltage level.Every second distribution unit is configured to supply electrical energy at a third voltage level. Each charging point unit of the at least one charging point unit is connected to a corresponding second distribution unit so that the charging point unit can be supplied with electrical energy at a third voltage level. Each charging point unit of the at least one charging point unit has a connection section to which an electric vehicle's electrical energy storage device can be connected, allowing the electric vehicle's electrical energy storage device to be charged with electrical energy. Each first distribution unit has a first data processing unit. Each charging point unit has a charging data processing unit.Each charging point unit of the at least one charging point unit is connected to a corresponding first distribution unit in such a way that first data can be sent from the first data processing unit, the first data can be received from the charging data processing unit, charging data can be sent from the charging data processing unit and the charging data can be received from the first data processing unit.

[0010] As previously described, the electric charging network system is configured for charging the electrical energy storage systems of electric vehicles. Preferably, the electric charging network system is configured for charging the electrical energy storage systems of electric cars.

[0011] As previously described, the electric charging network system comprises at least one first distribution unit, at least one second distribution unit, and at least one charging point unit. Preferably, the electric charging network system comprises several second distribution units, several third distribution units, and several charging point units. Preferably, the electric charging network system comprises one first distribution unit. Preferably, the electric charging network system comprises eighteen second distribution units. Preferably, the electric charging network system comprises seven hundred and twenty charging point units. Each first distribution unit can also be referred to as a sub-distributor plus (UVT+) or communication center. Each second distribution unit can also be referred to as a sub-distributor (UVT). Each charging point unit can also be referred to as a charging point (LP), charging bollard, or charging station.

[0012] As already described, each first distribution unit of the at least one first distribution unit has the electrical connection unit with which the first distribution unit can be connected to the third distribution unit of the electrical charging network system, which is set up to provide electrical energy with an electrical voltage at a first voltage level, or to a component of a first voltage level, in such a way that the first distribution unit can be supplied with electrical energy with an electrical voltage at a first voltage level.By having each first distribution unit of at least one first distribution unit having the electrical connection unit with which the first distribution unit can be connected to the third distribution unit of the electrical charging network system, which is configured to provide electrical energy with an electrical voltage at a first voltage level, or to a component of a first voltage level, in such a way that the first distribution unit can be supplied with electrical energy with an electrical voltage at a first voltage level, it is ensured that each first distribution unit can be supplied with electrical energy for charging electrical energy storage devices of electric vehicles.

[0013] As already described, each first distribution unit is set up to provide electrical energy with the electrical voltage at the second voltage level, and each second distribution unit of the at least one second distribution unit is connected to the corresponding first distribution unit in such a way that the second distribution unit can be supplied with electrical energy with the electrical voltage at the second voltage level.By configuring each first distribution unit to provide electrical energy at the second voltage level, and by connecting each second distribution unit to the corresponding first distribution unit in such a way that the second distribution unit can be supplied with electrical energy at the second voltage level, it is ensured that the electrical energy at the second voltage level can be used to charge electric vehicle energy storage devices using other components of the electric charging network system, such as the at least one second distribution unit and the at least one charging point unit. Preferably, the second voltage level is a medium voltage level. Preferably, the second voltage level corresponds to the first voltage level.

[0014] As already described, every second distribution unit is set up to provide electrical energy with the electrical voltage at the third voltage level, and preferably each charging point unit of the at least one charging point unit is connected to the corresponding second distribution unit in such a way that the charging point unit can be supplied with electrical energy with the electrical voltage at the third voltage level.By configuring every second distribution unit to supply electrical energy at the third voltage level, and by preferably connecting each charging point unit of the at least one charging point unit to the corresponding second distribution unit in such a way that the charging point unit can be supplied with electrical energy at the third voltage level, it is ensured that the electrical energy at the third voltage level can be used to charge electric vehicle energy storage devices using other components of the electric charging network system, such as the at least one charging point unit. Preferably, the third voltage level is a low-voltage level.Preferably, in connection with the present invention, a low-voltage level is defined such that when electrical energy is supplied at a voltage at the low-voltage level, or a component can be supplied with electrical energy at a voltage at the low-voltage level, the voltage at the low-voltage level corresponds to a nominal voltage of 0.4 kV (400 V). Preferably, every second distribution unit converts the voltage at the medium-voltage level to a voltage at the low-voltage level. Preferably, several charging point units are provided, which are connected to a corresponding second distribution unit by means of a star connection or a ring connection.Preferably, several charging point units are provided, which are connected to a corresponding second distribution unit for the supply of electrical energy by means of a star wiring or a ring wiring.

[0015] As already described, each charging point unit of the at least one charging point unit preferably has the connection section with which the electrical energy storage of the electric vehicle can be connected, so that the electrical energy storage of the electric vehicle can be charged with electrical energy.By having each charging point unit of the at least one charging point unit preferably having the connection section with which the electrical energy storage of the electric vehicle can be connected, so that the electrical energy storage of the electric vehicle can be charged with electrical energy, it is ensured that a connected state between the connection section of each charging point unit and an electrical energy storage of the electric vehicle can be established, for example by means of a charging cable, in which the electrical energy storage of the electric vehicle can be supplied with electrical energy and thus be charged.

[0016] The electric charging network system is thus structured such that each first distribution unit can be supplied with electrical energy by the third distribution unit or by the component of the first voltage level; each first distribution unit can supply a second distribution unit or several corresponding second distribution units to the at least one second distribution unit with electrical energy; and each third distribution unit can preferably supply a charging point unit or several corresponding charging point units to the at least one charging point unit with electrical energy. Preferably, each charging point unit is assigned to a specific second distribution unit, namely the second distribution unit that supplies the corresponding charging point unit with electrical energy.Similarly, every second distribution unit is assigned to a specific first distribution unit, namely the first distribution unit that supplies the corresponding second distribution unit with electrical energy. Furthermore, every first distribution unit is preferentially assigned to the third distribution unit, since the third distribution unit preferentially supplies every second distribution unit with electrical energy.

[0017] As previously described, each first distribution unit includes a first data processing unit. In particular, each first data processing unit includes a processor and a data storage unit. The fact that each first distribution unit includes the first data processing unit ensures that each first data processing unit can process data. As previously described, each charging point unit preferably includes the charging data processing unit. In particular, each charging data processing unit includes a processor and a data storage unit. The fact that each charging point unit preferably includes the charging data processing unit ensures that each charging point unit can process data.

[0018] As previously described, each charging point unit of the at least one charging point unit is preferably connected to the corresponding first distribution unit such that the first data can be sent from the first data processing unit, the first data can be received from the charging data processing unit, the charging data can be sent from the charging data processing unit, and the charging data can be received from the first data processing unit. In particular, in connection with the present invention, data sent by the first data processing unit and received by the charging data processing unit are referred to as first data. The first data, for example, has a status of "OK", which may consist of a "0" (zero). Furthermore, the third data may, for example, have a status of "not OK", which may consist of a "1" (one).The initial data is preferably received by the charging data processing unit and stored in a data memory of the charging data processing unit. Preferably, the initial data is read from the data memory of the first data processing unit by the processor of the first data processing unit and sent by the processor of the first data processing unit to a transmit / receive unit of the first distribution unit, and from the transmit / receive unit of the first distribution unit to a transmit / receive unit of the charging point unit. The transmit / receive unit of the charging point unit then sends the initial data to the processor of the charging point unit, which stores the initial data in the data memory of the charging data processing unit.In particular, in connection with the present invention, data sent by the charging data processing unit and received by the first data processing unit are referred to as charging data. The charging data includes, for example, a combination of a unique identification number of a connection section of a charging point unit and a unique identification number of the driver. Preferably, the charging data is read from the data memory of the charging data processing unit by the processor of the charging data processing unit and sent by the processor of the charging data processing unit to a transmitting and receiving unit of the charging data processing unit, and then sent by the transmitting and receiving unit of the charging data processing unit to a transmitting and receiving unit of the first distribution unit.The transmitting and receiving unit of the first distribution unit then sends the charging data to the processor of the first data processing unit, which stores the charging data in the data memory of the first data processing unit. By preferably connecting each charging point unit of the at least one charging point unit to the corresponding first distribution unit in such a way that the first data can be sent from the first data processing unit, the first data can be received from the charging data processing unit, the charging data can be sent from the charging data processing unit, and the charging data can be received from the first data processing unit, it is ensured that data exchange is possible between each charging point unit and the corresponding first distribution unit.

[0019] A key advantage of the electric charging network system is that, in the electric charging network system, every second distribution unit is connected to a corresponding first distribution unit, and preferably each charging point unit is connected to a corresponding second distribution unit, in such a way that each charging point unit can provide electrical energy for charging the electrical energy storage devices of electric vehicles by transferring the electrical energy from a corresponding first distribution unit via a corresponding second distribution unit to a corresponding charging point unit. Furthermore, preferably, each charging point unit is connected to a corresponding first distribution unit in such a way that data exchange is ensured from a corresponding first distribution unit to a corresponding charging point unit and from each charging point unit to a corresponding first distribution unit.Because the charging network system enables both the supply of electrical energy from at least one first distribution unit via at least one second distribution unit to at least one charging point unit for charging the electrical energy storage systems of electric vehicles, and also ensures data exchange between the charging point units and the first distribution units, the supply of electrical energy between the individual components of the electrical charging network system and the data exchange between the individual components of the electrical charging network system are independent of existing electricity distribution networks outside the electrical charging network system and independent of existing facilities for data exchange outside the electrical charging network system, such as the Internet.Furthermore, each first distribution unit and each charging point unit is preferably configured to supply or receive electrical power from a corresponding other component, as well as to exchange data with one or more other components. This significantly simplifies the expansion of the electric charging network system, as only one component needs to be installed, and this single component already provides both power supply and data exchange. For example, wired connections for power supply and data exchange can be laid together, thus significantly reducing the amount of excavation required. Additionally, centralized control of the charging point units via a corresponding first distribution unit is possible.Furthermore, the maintenance of the electric charging network system is significantly simplified, as individual components can be replaced, each of which is designed for both energy supply and data exchange.

[0020] Preferably, the electrical charging network system has a third distribution unit, wherein the third distribution unit has an electrical connection unit with which the third distribution unit can be connected to a component of a fourth voltage level in such a way that the third distribution unit can be supplied with electrical energy at an electrical voltage at the fourth voltage level, wherein the third distribution unit is configured to provide the electrical energy at an electrical voltage at the first voltage level.The fact that the electric charging network system includes a third distribution unit, wherein the third distribution unit has an electrical connection unit with which the third distribution unit can be connected to a component of a fourth voltage level such that the third distribution unit can be supplied with electrical energy at a voltage at the fourth voltage level, and wherein the third distribution unit is configured to provide the electrical energy at a voltage at the first voltage level, ensures that the third distribution unit can be supplied with electrical energy for charging the electrical energy storage devices of electric vehicles. Preferably, the component of the fourth voltage level is a solar park, which can also be referred to as a photovoltaic open-field system.Alternatively, preferably, the component of the fourth voltage level is a transformer substation, which can also be referred to as a transformer station. Preferably, the component of the fourth voltage level is a self-sufficient energy generator, such as a solar park, a wind farm, or an alternative power plant. Preferably, the component of the fourth voltage level is a conventional energy generator. Preferably, the component of the fourth voltage level is an energy storage system, such as a hydrogen storage system, a battery storage system, or an alternative storage system. Preferably, the component of the first voltage level is an existing network node for medium voltage. Preferably, the component of the first voltage level is a cable distribution point, a transformer substation, a manhole, or a commercial connection. The third distribution unit can also be referred to as a main distribution frame (MDF) or main transfer point.

[0021] Preferably, the fourth voltage level is a high-voltage level. Preferably, in connection with the present invention, a high-voltage level is defined such that when electrical energy is supplied at a voltage at the high-voltage level, or a component can be supplied with electrical energy at a voltage at the high-voltage level, the voltage at the high-voltage level corresponds to a nominal voltage of 35 kV. Alternatively, the first voltage level is preferably a medium-voltage level. Preferably, in connection with the present invention, a medium-voltage level is defined such that when electrical energy is supplied at a voltage at the medium-voltage level, or a component can be supplied with electrical energy at a voltage at the medium-voltage level, the voltage at the medium-voltage level corresponds to a nominal voltage of 20 kV.

[0022] As already described, the electric charging network system comprises at least one first distribution unit, at least one second distribution unit, preferably a third distribution unit, and preferably at least one charging point unit. If a third distribution unit is provided, it is preferably configured to provide energy management, in particular dynamic energy management, for the electric charging network system. If a third distribution unit is not provided, each of the at least one first distribution unit is preferably configured to provide energy management, in particular dynamic energy management, for the electric charging network system. Preferably, each charging point unit is assigned to a corresponding first distribution unit.Preferably, each first distribution unit is configured to control its assigned charging point unit(s) using initial data. For example, each first distribution unit releases or withholds electrical current to a specific charging point unit.

[0023] As already described, each first distribution unit has a first data processing unit for data processing. In particular, each first data processing unit has a processor and a data storage unit. The fact that each first distribution unit has a corresponding first data processing unit ensures that each first distribution unit can process data. Furthermore, each second distribution unit preferably has a second data processing unit. In particular, each second data processing unit has a processor and a data storage unit. The fact that each second distribution unit has a corresponding second data processing unit ensures that each second distribution unit can process data. Furthermore, the third distribution unit preferably has a third data processing unit. In particular, the third data processing unit has a processor and a data storage unit.The fact that the third distribution unit has a corresponding third data processing unit ensures that the third distribution unit can process data.

[0024] Preferably, every second distribution unit of the at least one second distribution unit is connected to a corresponding first distribution unit such that second data can be sent from the first data processing unit, the second data can be received from the second data processing unit, third data can be sent from the second data processing unit, and the third data can be received from the first data processing unit. In particular, in connection with the present invention, data sent by the first data processing unit and received by the second data processing unit are referred to as second data.Preferably, the second set of data is read from the data memory of the first data processing unit by the processor of the first data processing unit and sent by the processor of the first data processing unit to a transmitting and receiving unit of the first distribution unit, and then sent by the transmitting and receiving unit of the first distribution unit to a transmitting and receiving unit of the second distribution unit. The transmitting and receiving unit of the second distribution unit then sends the second set of data to the processor of the second data processing unit, which stores the second set of data in the data memory of the second data processing unit. In particular, in connection with the present invention, data sent by the second data processing unit and received by the first data processing unit are referred to as third set of data.Preferably, the third data is read from the data memory of the second data processing unit by the processor of the second data processing unit and sent by the processor of the second data processing unit to a transmit / receive unit of the second distribution unit, and from the transmit / receive unit of the second distribution unit to a transmit / receive unit of the first distribution unit. The transmit / receive unit of the first distribution unit then sends the third data to the processor of the first data processing unit, which stores the third data in the data memory of the first data processing unit.By connecting every second distribution unit of at least one second distribution unit to a corresponding first distribution unit in such a way that the second data can be sent from the first data processing unit, the second data can be received from the second data processing unit, the third data can be sent from the second data processing unit and the third data can be received from the first data processing unit, the possibility of data exchange between the first distribution unit and the second distribution unit is ensured.

[0025] Preferably, every second distribution unit of the at least one second distribution unit is wired to a corresponding first distribution unit in such a way that the second data can be sent from the first data processing unit via the wired connection, the second data can be received from the second data processing unit via the wired connection, the third data can be sent from the second data processing unit via the wired connection, and the third data can be received from the first data processing unit via the wired connection. By wiring every second distribution unit of the at least one second distribution unit to the corresponding first distribution unit in such a way that the second data can be sent from the first data processing unit via the wired connection,Since the second data can be received from the second data processing unit via the wired connection, the third data can be sent from the second data processing unit via the wired connection, and the third data can be received from the first data processing unit via the wired connection, the possibility of wired data exchange between each second distribution unit and the first distribution unit is ensured, thereby guaranteeing a particularly reliable data exchange between each first distribution unit and the third distribution unit.

[0026] Preferably, each first distribution unit of the at least one first distribution unit is connected to the third distribution unit such that fourth data can be sent from the first data processing unit, fourth data can be received from the third data processing unit, fifth data can be sent from the third data processing unit, and fifth data can be received from the first data processing unit. In particular, in connection with the present invention, data sent by the first data processing unit and received by the third data processing unit are referred to as fourth data.Preferably, the fourth data point is read from the data memory of the first data processing unit by the processor of the first data processing unit and sent by the processor of the first data processing unit to a transmit / receive unit of the first distribution unit, and from the transmit / receive unit of the first distribution unit to a transmit / receive unit of the third distribution unit. The transmit / receive unit of the third distribution unit then sends the fourth data point to the processor of the third data processing unit, which stores the fourth data point in the data memory of the third data processing unit.By connecting each first distribution unit of the at least one first distribution unit to the third distribution unit in such a way that the fourth data can be sent from the first data processing unit, the fourth data can be received by the third data processing unit, the fifth data can be sent by the third data processing unit, and the fifth data can be received by the first data processing unit, the possibility of data exchange between the first distribution unit and the third distribution unit is ensured. In particular, in connection with the present invention, data sent by the third data processing unit and received by the first data processing unit are referred to as fifth data.The fifth data points, for example, contain reference data that is sent by the third data processing unit and received by the first data processing unit and stored in the data memory of the first data processing unit. Preferably, the fifth data points are read from the data memory of the third data processing unit by the processor of the third data processing unit and sent by the processor of the third data processing unit to a transmit / receive unit of the third distribution unit, and from the transmit / receive unit of the third distribution unit to a transmit / receive unit of the first distribution unit. The transmit / receive unit of the first distribution unit then sends the fifth data points to the processor of the first data processing unit, which stores the fifth data points in the data memory of the first data processing unit.

[0027] Preferably, each first distribution unit of the at least one first distribution unit is wired to the third distribution unit in such a way that the fourth data can be sent from the first data processing unit via the wired connection, the fourth data can be received from the third data processing unit via the wired connection, the fifth data can be sent from the third data processing unit via the wired connection, and the fifth data can be received from the first data processing unit via the wired connection.By connecting each first distribution unit of at least one first distribution unit to the third distribution unit via a wired connection, such that the fourth data can be sent from the first data processing unit via the wired connection, the fourth data can be received from the third data processing unit via the wired connection, the fifth data can be sent from the third data processing unit via the wired connection, and the fifth data can be received from the second data processing unit via the wired connection, the possibility of wired data exchange between each first distribution unit and the third distribution unit is ensured, thereby guaranteeing a particularly reliable data exchange between each first distribution unit and the third distribution unit.

[0028] Furthermore, preferably every second distribution unit is assigned to at least one second distribution unit of a corresponding first distribution unit. Additionally, preferably every charging point unit is assigned to at least one charging point unit of a corresponding second distribution unit. Preferably, every second distribution unit of at least one second distribution unit is configured to transmit the electrical energy transferred from a corresponding first distribution unit to its assigned charging point unit(s). Preferably, each charging point unit is freestanding, retractable, or configured as a wallbox for parking garages or underground car parks.Preferably, each charging point unit has an electricity meter that records the electrical energy used, for example, for a charging process and sends information representing the electrical energy used for the charging process in the form of charging data to the first distribution unit assigned to the charging point unit, which processes this information and starts a billing process based on this information.

[0029] Preferably, the component of the fourth voltage level is a component of the high-voltage level, and the third distribution unit can be supplied with electrical energy at a voltage of the high-voltage level. Because the component of the fourth voltage level is a component of the high-voltage level, and the third distribution unit can be supplied with electrical energy at a voltage of the high-voltage level, it is ensured that the electrical charging network system can be designed as a self-sufficient electrical charging network system, which is particularly independent of existing power grids.

[0030] Preferably, the component of the first voltage level is a component of the medium voltage level, and the first distribution unit can be supplied with electrical energy at a voltage of the medium voltage level. Because the component of the first voltage level is a component of the medium voltage level, and the first distribution unit can be supplied with electrical energy at a voltage of the medium voltage level, it is ensured that the electrical charging network system can be designed as an integrated electrical charging network system. This integrated electrical charging network system can be particularly simple in design, since, in particular, the electrical voltages do not need to be reduced as much across the voltage levels to the at least one charging point unit.

[0031] Preferably, each charging point unit of the at least one charging point unit is connected to the corresponding first distribution unit by a wire connection in such a way that the first data can be sent from the first data processing unit via the wired connection, the first data can be received from the charging data processing unit via the wired connection, the charging data can be sent from the charging data processing unit via the wired connection, and the charging data can be received from the first data processing unit via the wired connection.By connecting each charging point unit of the at least one charging point unit to the corresponding first distribution unit via a wired connection, enabling the transmission of initial data from the first data processing unit via the wired connection, the reception of initial data from the charging data processing unit via the wired connection, the transmission of charging data from the charging data processing unit via the wired connection, and the reception of charging data from the first data processing unit via the wired connection, the possibility of wired data exchange between each charging point unit and the corresponding first distribution unit is ensured, thereby guaranteeing a particularly reliable data exchange between each charging point unit and the corresponding first distribution unit.

[0032] Preferably, fiber optic cables are used for data transmission. Preferably, every second distribution unit of the at least one second distribution unit is connected to the first distribution unit by means of a fiber optic cable such that first data can be sent from the first data processing unit via the fiber optic cable, first data can be received from the second data processing unit via the fiber optic cable, second data can be sent from the second data processing unit via the fiber optic cable, and second data can be received from the first data processing unit via the fiber optic cable.Preferably, each charging point unit of the at least one charging point unit is connected to a corresponding second distribution unit by means of a fiber optic cable in such a way that third data can be sent from the second data processing unit via the fiber optic cable, the third data can be received from the charging data processing unit via the fiber optic cable, charging data can be sent from the charging data processing unit via the fiber optic cable and the charging data can be received from the second data processing unit via the fiber optic cable.

[0033] Alternatively, copper cables are preferably used for data transmission. Preferably, every second distribution unit is connected to the first distribution unit by means of a copper cable in such a way that first data can be sent from the first data processing unit via the copper cable, first data can be received from the second data processing unit via the copper cable, second data can be sent from the second data processing unit via the copper cable, and second data can be received from the first data processing unit via the copper cable.Preferably, each charging point unit of the at least one charging point unit is connected to a corresponding second distribution unit using a copper cable in such a way that third data can be sent from the second data processing unit via the copper cable, the third data can be received from the charging data processing unit via the copper cable, charging data can be sent from the charging data processing unit via the copper cable, and the charging data can be received from the second data processing unit via the copper cable.

[0034] Alternatively, preferably, the electrical charging network system is configured such that the data for data transmission is transmitted via the power cables provided for the supply of electrical energy. Preferably, every second distribution unit of the at least one second distribution unit is connected to the first distribution unit by means of a power cable such that first data can be sent from the first data processing unit via the power cable, first data can be received from the second data processing unit via the power cable, second data can be sent from the second data processing unit via the power cable, and second data can be received from the first data processing unit via the power cable.Preferably, each charging point unit of the at least one charging point unit is connected to a corresponding second distribution unit via a corresponding third distribution unit in such a way that each charging point unit is connected to a corresponding third distribution unit and the third distribution unit is connected to a corresponding second distribution unit by means of power cables in such a way that third data can be sent from the second data processing unit via the power cables, the third data can be received from the charging data processing unit via the power cables, charging data can be sent from the charging data processing unit via the power cables and the charging data can be received from the second data processing unit via the power cables.

[0035] Preferably, the electric charging network system includes means for real-time data acquisition and communication. Preferably, each first distribution unit of the at least one first distribution unit, each second distribution unit of the at least one second distribution unit, preferably the third distribution unit, and each charging point unit of the at least one charging point unit, includes at least partial means for real-time data acquisition and communication. The data collected through real-time data acquisition and communication enables coordinated control and optimization of the energy flows in the electric charging network system. Preferably, data is continuously acquired by the components of the electric charging network system, and the components of the electric charging network system communicate continuously with each other to ensure seamless and coordinated control.Communication between the components, which can also be referred to as units, enables data analysis and monitoring: real-time monitoring and analysis of power flows, voltage, current, and other key parameters. This communication also allows for proactive control: optimization of energy distribution and rapid response to load changes and grid disturbances. Furthermore, communication between components enables increased efficiency: improved overall operational efficiency through coordinated control of the various grid components. Ideally, real-time data acquisition and communication will be carried out using modern technologies and secure communication protocols to ensure reliability and data security.

[0036] Preferably, an infrastructure system is also provided. The infrastructure system comprises several electric charging network systems, each of which is a previously described electric charging network system. The features, technical effects, and / or advantages described in connection with the charging network system also apply, at least analogously, to the infrastructure system, so a corresponding repetition is omitted here.

[0037] A preferred method is also provided. The method is intended for operating an electric charging network system.The procedure comprises the following steps: connecting the electrical connection unit of the first distribution unit to a third distribution unit of the electrical charging network system or a component of a first voltage level such that the first distribution unit is supplied with electrical energy at an electrical voltage at the first voltage level; connecting at least one second distribution unit to a corresponding first distribution unit such that the at least one second distribution unit is supplied with electrical energy at an electrical voltage at the second voltage level; and connecting at least one charging point unit to a corresponding second distribution unit such that the at least one charging point unit is supplied with electrical energy at an electrical voltage at the third voltage level.The features, technical effects and / or advantages described in connection with the electric charging network system and the features, technical effects and / or advantages described in connection with the electric infrastructure system also apply, at least analogously, to the procedure, so that a corresponding repetition is omitted here.

[0038] Preferably, a computer program is also provided. The computer program contains instructions that cause the electric charging network system to execute the steps of the procedure. The characteristics, technical effects, and / or advantages described in connection with the electric charging network system, the characteristics, technical effects, and / or advantages described in connection with the electric infrastructure system, and the characteristics, technical effects, and / or advantages described in connection with the procedure also apply, at least analogously, to the computer program, so that a corresponding repetition is omitted here.

[0039] Preferably, a computer-readable medium is also provided. The computer program is stored on the computer-readable medium. The features, technical effects, and / or advantages described in connection with the electrical charging network system, the features, technical effects, and / or advantages described in connection with the electrical infrastructure system, the features, technical effects, and / or advantages described in connection with the method, and the features, technical effects, and / or advantages described in connection with the computer program also apply, at least analogously, to the computer-readable medium, so that a corresponding repetition is omitted here.

[0040] Even though the steps, particularly those relating to the method, are described in a specific order, the present invention is not limited to this order. Rather, the individual steps can be carried out in any meaningful order, and in particular, at least partially in parallel with one another.

[0041] Further features, advantages, and applications of the present invention will become apparent from the following description of the exemplary embodiments and the figures. All features described and / or illustrated, individually and in any combination, constitute the subject matter of the invention, irrespective of their composition in the individual claims or their cross-references. In the figures, the same reference numerals denote identical or similar objects. Fig. 1, Fig. 2 and Fig. Figure 3 shows schematic representations of an embodiment of a charging point unit according to the invention.

[0042] Fig. 1, Fig. 2 and Fig. Figure 3 shows schematic representations of an embodiment of a charging point unit 1 according to the invention. The charging point unit 1 is designed for charging electrical energy storage devices of electric vehicles. The charging point unit 1 has a first section 3, which can be inserted into a floor section, a Fig. 1, Fig. 2 and Fig. 3 drive unit (not shown) and a second section 5. The second section 5 can be moved relative to the first section 3 from a retracted position to a raised position using the drive unit. Fig. 1 shown extended position and can be moved from the extended position to the retracted position.

[0043] The charging point unit 1 has a front panel 7 and an LED arranged in the front panel 7 to indicate the status of the charging point unit 1. The charging point unit 1 also has a first charging connection point 9, which includes self-limiting heating cables for the front panel 7 and a socket 11 of the second section 5 of the charging point unit 1. The heating cables ensure frost protection for the charging point unit 1, in particular for the front panel 7. The charging point unit 1 also has a second charging connection point 13, which includes two Type 2 sockets arranged vertically one above the other and an NFC chip 15 (see Fig. 3) has. In addition, the charging point unit has a bollard 17, which is approximately 80 cm high and has a minimum width.

[0044] Furthermore, charging point unit 1 has a cable duct 19. The cable duct 19 is intended for the bollard system. The cable duct 19 has a depth of 1.0 m, is made of plastic, and has cable entries. The cable duct 19 can be referred to as a section of the first section 3. The cable duct 19 is installed in the ground. A power cable 21 and a data cable 23 are pre-connected to a network connection point 25. The power cable 21 and the data cable 23 each form a section of a supply line for charging point unit 1. The power cable 21 is a section of a power supply line with an IP69 connector. The data cable 23 is a section of a data connection. The bollard mechanism is screwed into the duct. Cables for bollard systems, i.e., a bollard system cable 27, as well as charging technology, i.e., a charging technology cable 29, and pump systems, i.e., a pump system cable 31, are each connected to the network connection point 25.IP69 connections are provided for this purpose. The network connection point 25 has a connection point for the power grid as well as for the data connection (protection mechanism + residual current device). The functions of the bollard (drive, heating, operation) are also controlled via network connection point 25. No components relevant to the charging process are installed in network connection point 25. The charging cable 29 can also be referred to as the charging point cable. The cable transmits power and data and is connected to the transfer point with a waterproof connector system.

[0045] The drive unit has already been mentioned. The drive unit is designed for a lifting mechanism. The drive unit can be installed in the side panels, as can a rail system 33 for stabilization.

[0046] Furthermore, the charging point unit 1 features a pump system 33. The pump system 33 is a simple pump system with a water contact sensor and prevents consequential damage from prolonged water contact by draining excess water, thus preventing material damage and corrosion. The excess water is drained by means of a valve 35 of the pump system 33.

[0047] Furthermore, the charging point unit 1 has a floor button 37 for extending and retracting the bollard 17.

[0048] In Fig.Figure 3 also shows an external NFC interface of charging point unit 1. The charging point unit also has a first connection point IP69 41. The first connection point IP69 41 has an upper interface, which is intended for connecting the front panel and can alternatively also be used as a connection point in wallbox operation. The charging point unit 1 also has a second connection point IP69 43. The combined hybrid cable (power and data cable) is connected to the second connection point IP69 43, which can also be referred to as the lower IP69 interface. The charging point unit 1 also has a third connection point IP69 45. At the third connection point IP69 45, the hybrid connection cable transmits power and data and has two IP69 connectors. It is connected in the bollard at the charging capsule and at the transfer point in the base.

[0049] Furthermore, charging point unit 1 has a charging point 47. Charging point 47 has 2x Type 2 sockets vertically, each 22kW (SCC technology), Type 2 sockets vertically for 1 vehicle at 22kW or 2 vehicles at 11kW, an NFC chip, 1x pre-assembled cable with waterproof connector, 2x viewing windows for legally compliant electricity meters, power electronics, a charging controller, legally compliant electricity meters with viewing windows for users, one meter per socket, protective devices (residual current circuit breaker, miniature circuit breaker), charging cable or charging socket, and communication interfaces.

[0050] Furthermore, charging point unit 1 features a charging capsule 49. On the front of the capsule are two vertically arranged Type 2 sockets. An NFC interface is integrated above the sockets for communication and authentication. All components are integrated within the capsule to enable operation as a wallbox.

[0051] The charging point unit 1 can also be called an SCC charging bollard and is a retractable charging bollard for electric vehicles.

[0052] Technical field: This invention relates to a retractable charging bollard primarily designed for charging electric vehicles (EVs). However, the charging bollard also offers civilian, municipal, and military applications in power supply and communication. The charging bollard can be fully recessed into the ground, integrates all necessary charging technology, offers various payment methods, and incorporates advanced communication and security features. Technical description 1. Retractable charging bollard

[0053] The charging bollard can be fully retracted into the ground when not in use. This offers a space-saving and aesthetically pleasing solution in urban environments and reduces the risk of damage and vandalism. The retraction and extension mechanism is typically achieved using an electric drive powered by a robust and maintenance-free motor. However, alternative drive systems are also available. Areas of application: Public, Semi-public, Private

[0054] The bollard is preferably approximately 80 cm high when extended. The upper 50 cm are preferably hollow inside to house waterproof technology, reduce weight, and provide space for additional functions or cabling.

[0055] The hollow interior can be used to integrate additional components such as sensors, communication devices, or other technology.

[0056] Ideally, the cables for power supply and data transmission are designed and routed in such a way that they can move along with the bollard during the raising and lowering process without being damaged. A flexible cable management system or cable guide rail could be integrated to accommodate the bollard's movements and protect it from wear.

[0057] The cables used are preferably weatherproof and durable in order to withstand the challenges posed by environmental influences. 2. Equipment & Charging Technology

[0058] The charging equipment integrated into the bollard comprises a housing made of metallic compounds or other materials. For example, the housing may be cylindrical, prism-shaped, or have another form. The charging equipment integrated into the bollard also includes a drive mechanism, which can be electrically, hydraulically, magnetically, or otherwise powered. Furthermore, the charging equipment integrated into the bollard includes one or more charging ports: standardized charging sockets for various vehicle types (e.g., Type 2, CCS). The charging equipment integrated into the bollard also includes power electronics: mains connection, DC and / or AC inverter to meet different charging requirements. Finally, the charging equipment integrated into the bollard includes safety electronics: fuses, circuit breakers, and other safety components.The integrated charging technology in the bollard also includes a cooling and heating system for temperature management: an integrated system for efficient temperature control of the electronics under high loads or to prevent freezing at low temperatures. The integrated charging technology in the bollard also includes sensors for monitoring and optimizing the charging process. The integrated charging technology in the bollard also includes an integrated energy meter. The integrated charging technology in the bollard also includes lighting and acoustic signals, or optionally, voice output for instructions, confirmations, warnings, etc. The integrated charging technology in the bollard is also characterized by a modular design. The integrated charging technology in the bollard also optionally includes active, passive, and inductive sensors, such as...Optical sensors, acoustic sensors, vibration sensors, temperature sensors, radar, etc. The integrated equipment and charging technology in the bollard also optionally includes: battery storage to bridge power outages. The integrated equipment and charging technology in the bollard also optionally includes an emergency manual operation for raising and lowering. 3. Integrated payment options

[0059] The charging bollard incorporates a payment system offering various payment methods, including: Credit and debit card payments: A card reader for contactless payments. Mobile payment: NFC-enabled modules for payments via mobile devices. RFID: For subscriber or membership card-based payment systems. QR code: For web payments. App payment. Other systems and payment interfaces: All available options for processing payments. 4. Processor, communication module and interfaces

[0060] The bollard is equipped with a powerful processor that controls and monitors all operations. Integrated modules and interfaces include: Communication modules: To ensure a stable and secure data connection. Interfaces: For maximum compatibility. Data processing and storage: An integrated processor and memory for handling charging operations, transactions, analytics, and communication. IoT & AI 5. Water resistance

[0061] The charging bollard is preferably designed to IP68 protection class to offer protection against the ingress of water and dust. All electronic components are housed in a sealed enclosure, and the moving parts are equipped with high-quality seals. 6. Vandal resistance & robustness

[0062] The bollard is made of robust materials that offer high resistance to mechanical and environmental influences. In addition to withstanding physical stresses, the charging bollard must be weather- and corrosion-resistant. Examples of robust materials include: metal, aluminum, steel, and plastic. 7. Operation and Maintenance

[0063] The charging bollard is designed for ease of operation and maintenance: Remote maintenance: The charging bollard can be monitored and maintained remotely via the communication modules. Modular design: Individual components can be easily replaced if necessary. 8. Advantages of the invention

[0064] The present invention offers several advantages: Space saving and aesthetics: The retractable bollard is barely visible when retracted, thus contributing to the visual enhancement of urban spaces. Convenience and flexibility: The integration of charging technology and payment options greatly simplifies the charging process for the user. Safety and security: Thanks to its water resistance and vandal resistance, the charging bollard is ideally suited for use in public and exposed areas. Future-proof: The integrated communication and interface modules enable easy integration into existing and future charging infrastructure systems.

[0065] The charging point unit 1 is configured to be integrated into an electric charging network system comprising at least one first distribution unit, at least one second distribution unit, and at least one charging point unit, wherein the charging point unit 1 is one of the at least one charging point unit, or each of the at least one charging point unit is configured in the same way as the charging point unit 1. The at least one first distribution unit comprises multiple first distribution units, the at least one second distribution unit comprises multiple second distribution units, and the at least one charging point unit comprises multiple charging point units. In a first embodiment of the electric charging network system, the electric charging network system comprises a third distribution unit. In a second embodiment of the electric charging network system, the electric charging network system does not have a third distribution unit.Each first distribution unit can also be referred to as a sub-distributor plus (UVT+) or communication center, each second distribution unit can also be referred to as a sub-distributor (UVT), each charging point unit, in particular charging point unit 1, can also be referred to as a charging point (LP), charging bollard, or charging station, and the third distribution unit of the first embodiment of the electrical charging network system according to the invention can also be referred to as a main distributor (HVT) or main transfer point. Every electric vehicle is an electric car and has an electrical energy storage device that can be charged electrically using the electrical charging network system. The electrical charging network system is therefore designed for charging the electrical energy storage devices of electric vehicles.

[0066] Each first distribution unit and each second distribution unit is configured to receive and supply electrical energy at a specific voltage level. Each first distribution unit has an electrical connection unit. In the electric charging network system, each first distribution unit can be connected to the third distribution unit of the electric charging network system via its corresponding electrical connection unit. The third distribution unit is configured to supply electrical energy at a voltage level.Each first distribution unit can be connected to the third distribution unit of the electric charging network system via the corresponding electrical connection unit. When connected, the first distribution unit can be supplied with electrical energy at the first voltage level. In the electric charging network system, each first distribution unit can be connected to a component of the first voltage level via the corresponding electrical connection unit. This first voltage level component is configured to supply electrical energy at the first voltage level.Each first distribution unit can be connected to the corresponding electrical connection unit and to the component of the first voltage level. In the connected state, the first distribution unit can be supplied with electrical energy at a voltage of the first voltage level. In the electrical charging network system, the first voltage level is a medium voltage level. Preferably, in connection with the present invention, a medium voltage level is defined such that when electrical energy is supplied at a voltage of the medium voltage level, or when a component can be supplied with electrical energy at a voltage of the medium voltage level, the voltage at the medium voltage level corresponds to a nominal voltage of 20 kV.

[0067] Each first distribution unit is configured to supply electrical energy at a voltage on a second voltage level. Each second distribution unit of at least one second distribution unit is connected to a corresponding first distribution unit in such a way that the second distribution unit can be supplied with electrical energy at a voltage on the second voltage level. In the electrical charging network system, the second voltage level is a medium voltage level. In the electrical charging network system, the second voltage level corresponds to the first voltage level.

[0068] Every second distribution unit is configured to supply electrical energy at a third voltage level. Each charging point unit of the at least one charging point system is connected to a corresponding second distribution unit in such a way that the charging point unit can be supplied with electrical energy at a voltage at the third voltage level. In this electrical charging network system, the third voltage level is a low-voltage level. Because the third voltage level is a low-voltage level, each charging point unit can have a particularly simple design, since, in particular, each charging point unit does not need to contain any components that convert a medium voltage to a low voltage.Preferably, in connection with the present invention, a low-voltage level is defined such that when electrical energy is supplied at a voltage at the low-voltage level, or a component can be supplied with electrical energy at a voltage at the low-voltage level, the voltage at the low-voltage level corresponds to a nominal voltage of 0.4 kV (400 V). In the electrical charging network system, every second distribution unit thus converts the voltage at the medium-voltage level to a voltage at the low-voltage level.

[0069] Each charging point unit of the at least one charging point system has a connection section to which an electric vehicle's electrical energy storage device can be connected, allowing the vehicle's electrical energy storage device to be charged with electrical energy. Thus, when an electric vehicle's electrical energy storage device is connected to a connection section of a charging point unit, it can be charged. In the electric vehicle charging network system, each charging point unit is configured to provide electrical energy at a voltage on the third voltage level.By ensuring that every second distribution unit is configured to provide electrical energy at a voltage on the third voltage level, and that each charging point unit is connected to a corresponding second distribution unit in such a way that the charging point unit can be supplied with electrical energy at a voltage on the third voltage level, and that each charging point unit is configured to provide electrical energy at a voltage on the third voltage level, it is ensured that each charging point unit can be of a particularly simple design, since in particular each charging point unit does not need to have any components that convert the electrical voltage between different voltage levels.In the electric vehicle charging network system, each charging point unit has two connection sections, each with a Type 2 socket. This allows each charging point unit to charge two electrical energy storage devices: one belonging to a first electric vehicle and the other to a second. Both the first and second electrical energy storage devices can be charged using one charging point unit and two charging cables with Type 2 connectors. Each charging point unit provides 22 kW of electrical power at each Type 2 socket.

[0070] As previously described, the first embodiment of the electric charging network system includes a third distribution unit. This third distribution unit has an electrical connection unit that allows it to be connected to a component of a fourth voltage level, enabling it to be supplied with electrical energy at a voltage on the fourth voltage level. The third distribution unit is configured to provide electrical energy at a voltage on the first voltage level.

[0071] In the connected state of the first embodiment of the electric charging network system, the third distribution unit is connected to the electrical connection unit and the component of the fourth voltage level in such a way that the third distribution unit can be supplied with electrical energy at a voltage of the fourth voltage level. In the connected state of the second embodiment of the electric charging network system, the component of the first voltage level is connected to a corresponding electrical connection unit and the component of the fourth voltage level in such a way that the component of the first voltage level can be supplied with electrical energy at a voltage of the fourth voltage level.In the connected state of the first embodiment of the electric charging network system, each first distribution unit is also connected to the third distribution unit via a corresponding electrical connection unit, such that each first distribution unit can be supplied with electrical energy at a voltage on the first voltage level. In the connected state of the second embodiment of the electric charging network system, each first distribution unit is also connected to the component of the first voltage level via a corresponding electrical connection unit, such that each first distribution unit can be supplied with electrical energy at a voltage on the first voltage level.In both the connected state of the first embodiment of the electrical charging network system and the connected state of the second embodiment of the electrical charging network system, each second distribution unit is connected to a corresponding electrical connection unit with a corresponding first distribution unit in such a way that each second distribution unit can be supplied with electrical energy at an electrical voltage on the second voltage level, and each charging point unit is connected to a corresponding electrical connection unit with a corresponding second distribution unit in such a way that each charging point unit can be supplied with electrical energy at an electrical voltage on the third voltage level.

[0072] In the first embodiment of the electric charging network system, the component of the fourth voltage level is a solar park, which can also be referred to as a ground-mounted photovoltaic system, and the fourth voltage level is a high-voltage level. Preferably, in connection with the present invention, a high-voltage level is defined such that when electrical energy is supplied at a voltage at the high-voltage level, or a component can be supplied with electrical energy at a voltage at the high-voltage level, the voltage at the high-voltage level corresponds to a nominal voltage of 35 kV or more. Thus, in the first embodiment of the electric charging network system, the component of the fourth voltage level is a component of a high-voltage level, and the third distribution unit can be supplied with electrical energy at a voltage at the high-voltage level.Preferably, a transfer station is provided between the component of the fourth voltage level and the third distribution unit. The electric charging network system can also be referred to as a self-contained electric charging network system. In the electric charging network system, the component of the first voltage level is a transformer station, which can also be called a transformer substation. In the electric charging network system, the component of the first voltage level is a medium-voltage level component, and the first distribution unit can be supplied with electrical energy at a voltage on the medium-voltage level. The electric charging network system can also be referred to as an integrated electric charging network system.

[0073] In the electric charging network system, the third distribution unit converts the electrical voltage at the fourth voltage level (high voltage) to an electrical voltage at the first voltage level (medium voltage). Similarly, in the electric charging network system, the component at the first voltage level converts the electrical voltage at the fourth voltage level (high voltage) to an electrical voltage at the first voltage level (medium voltage). Each first distribution unit maintains the electrical voltage at the medium voltage level and distributes the electrical energy to the multiple second distribution units, with each second distribution unit being supplied with an electrical voltage at the medium voltage level.Every second distribution unit converts the electrical voltage at the second voltage level, i.e., the medium voltage level, to an electrical voltage at the third voltage level, i.e., the low voltage level. The second voltage level therefore corresponds to the first voltage level.

[0074] Furthermore, each first distribution unit has a first data processing unit and a first transmit / receive unit; each second distribution unit has a second data processing unit and a second transmit / receive unit; and each charging point unit has a charging data processing unit and a transmit / receive unit. Additionally, in the electric charging network system, the third distribution unit has a third data processing unit and a third transmit / receive unit. Each first data processing unit has a processor and a data memory, each second data processing unit has a processor and a data memory, the third data processing unit has a processor and a data memory, and each charging data processing unit also has a processor and a data memory.

[0075] Each charging point unit of the at least one charging point unit is connected to a corresponding first distribution unit such that initial data can be sent from the first data processing unit, initial data can be received from the charging data processing unit, charging data can be sent from the charging data processing unit, and charging data can be received from the first data processing unit. The transmit and receive unit of each first distribution unit, i.e., each first transmit and receive unit, is configured for transmitting the initial data and receiving the charging data. The transmit and receive unit of each charging point unit is configured for transmitting the charging data and receiving the initial data.Furthermore, each charging point unit of the at least one charging point unit is connected to the corresponding first distribution unit by wire in such a way that the first data can be sent from the first data processing unit via the wired connection, the first data can be received from the charging data processing unit via the wired connection, the charging data can be sent from the charging data processing unit via the wired connection and the charging data can be received from the first data processing unit via the wired connection.Each charging point unit of the at least one charging point unit is wired to the corresponding first distribution unit by means of an electrically conductive cable, which may also be referred to as an electrical conductor or as an electrically insulating sheathed electrical conductor or power cable, in such a way that the first data can be sent from the first data processing unit via the wired connection using Powerline Communication (PLC), the first data can be received from the charging data processing unit via the wired connection using Powerline Communication, the charging data can be sent from the charging data processing unit via the wired connection using Powerline Communication, and the charging data can be received from the first data processing unit via the wired connection using Powerline Communication.

[0076] Furthermore, every second distribution unit of at least one second distribution unit is connected to a corresponding first distribution unit in such a way that second data can be sent from the first data processing unit, second data can be received from the second data processing unit, third data can be sent from the second data processing unit, and third data can be received from the first data processing unit. The transmitting and receiving unit of each first distribution unit, i.e., each first transmitting and receiving unit, is configured to transmit the second data and receive the third data. The transmitting and receiving unit of each second distribution unit, i.e., each second transmitting and receiving unit, is configured to transmit the third data and receive the second data.Furthermore, every second distribution unit of at least one second distribution unit is wired to a corresponding first distribution unit in such a way that the second data can be sent from the first data processing unit via the wired connection, the second data can be received from the second data processing unit via the wired connection, the third data can be sent from the second data processing unit via the wired connection, and the third data can be received from the first data processing unit via the wired connection.Every second distribution unit of the at least one second distribution unit is wired to the corresponding first distribution unit by means of a fiber optic cable, in particular a single-mode fiber optic (GF-SM) cable, in such a way that the second data can be sent from the first data processing unit via the wired connection, the second data can be received from the second data processing unit via the wired connection, the third data can be sent from the second data processing unit via the wired connection and the third data can be received from the first data processing unit via the wired connection.

[0077] Furthermore, in the first embodiment of the electrical charging network system according to the invention, each first distribution unit of the at least one first distribution unit is connected to the third distribution unit in such a way that fourth data can be sent from the first data processing unit, fourth data can be received from the third data processing unit, fifth data can be sent from the third data processing unit, and fifth data can be received from the first data processing unit. The transmitting and receiving unit of each first distribution unit, i.e., each first transmitting and receiving unit, is configured for transmitting fourth data and receiving fifth data. The transmitting and receiving unit of the third distribution unit is configured for transmitting fifth data and receiving fourth data.Furthermore, each first distribution unit of at least one first distribution unit is wired to the third distribution unit in such a way that the fourth data can be sent from the first data processing unit via the wired connection, the fourth data can be received from the third data processing unit via the wired connection, the fifth data can be sent from the third data processing unit via the wired connection, and the fifth data can be received from the third data processing unit via the wired connection.Each first distribution unit of the at least one first distribution unit is wired to the third distribution unit by means of a fiber optic cable, in particular a single-mode fiber optic (GF-SM) cable, in such a way that the fourth data can be sent from the first data processing unit via the wired connection, the fourth data can be received from the third data processing unit via the wired connection, the fifth data can be sent from the third data processing unit via the wired connection and the fifth data can be received from the third data processing unit via the wired connection.

[0078] Furthermore, an embodiment of an electrical infrastructure system is provided. This electrical infrastructure system comprises several electrical charging network systems. Each electrical charging network system is one of the electrical charging network systems already described. The component of the fourth voltage level is therefore the solar park already described, and the fourth voltage level is a high-voltage level. The third distribution unit of each electrical charging network system is connected to the solar park in such a way that every third distribution unit can be supplied with electrical energy at a voltage on the fourth voltage level. Additional electrical charging network systems may also be provided.

[0079] Furthermore, a method for operating an electric charging network system is provided. In a first step of the method, the electrical connection unit of the first distribution unit is connected to a third distribution unit of the electric charging network system or to a component of a first voltage level such that the first distribution unit is supplied with electrical energy at a voltage on the first voltage level. In a second step of the method, at least one second distribution unit is connected to a corresponding first distribution unit such that the at least one second distribution unit is supplied with electrical energy at a voltage on the second voltage level.In a third step of the process, at least one charging point unit is connected to a corresponding second distribution unit in such a way that the at least one charging point unit is supplied with electrical energy at a voltage on the third voltage level. In a fourth step of the process, a charging process is carried out, which is described in more detail below.

[0080] For example, if an electric vehicle driver wants to charge their vehicle's battery, they drive to a connection point of a charging station. The driver scans a QR code attached to the charging station with their mobile phone. This QR code contains a unique identification number (UIN) in encoded form, which uniquely identifies the connection point of the charging station. Using an app installed on the driver's mobile phone, the unique identification number of the charging station's connection point can be determined from the scanned QR code, and the driver can then confirm, via a user input, that they wish to charge their electric vehicle's battery at that connection point. The following describes the process using an app.However, other applications are also possible in connection with the present invention, such as a wallet provided in the mobile phone.

[0081] After user input, the driver's mobile phone wirelessly transmits the unique identification number of the charging point unit's connection section and a unique driver identification number stored in the driver's app to a transmitter / receiver unit for wireless transmission and reception of the charging point unit. Preferably, the driver's mobile phone wirelessly transmits the unique identification number of the charging point unit's connection section and a unique driver identification number stored in the driver's app using Near Field Communication (NFC) to a transmitter / receiver unit for wireless transmission and reception of the charging point unit. Preferably, the transmitter / receiver unit for wireless transmission and reception of the charging point unit is an NFC transmitter / receiver unit.The wireless transmitting and receiving unit sends the unique identification number of the charging point unit's connection section and the driver's unique identification number to a processor within the charging point unit, which is connected to the charging point unit's data storage. This combination of processor and data storage can also be referred to as the charging data processing unit. Thus, the charging data processing unit comprises both the charging point unit's processor and its data storage.The processor then reads the unique identification numbers of the two connection sections of the charging point unit stored in the data memory of the charging point unit and compares these unique identification numbers with the unique identification number of the connection section of the charging point unit sent by the transmitting and receiving unit to the processor of the charging point unit for wireless transmission and reception.If one of the two unique identification numbers stored in the charging point unit's data memory for the two connection sections of the charging point unit matches the unique identification number of the charging point unit's connection section that the transmitter / receiver unit sends wirelessly to the charging point unit's processor, the charging point unit's processor sends the unique identification number of the charging point unit's connection section and the driver's unique identification number to a transmitter / receiver unit of the charging point unit. The combination of the charging point unit's connection section's unique identification number and the driver's unique identification number can also be referred to as charging data.The charging point unit's transmitter and receiver now sends the unique identification number of the charging point unit's connection section and the driver's unique identification number via the previously described wired connection between the charging point unit and the first distribution unit assigned to it. This connection is formed by an electrically conductive cable between the charging point unit and the first distribution unit. The electrically conductive cable connects the charging point unit to the first distribution unit. Specifically, no data exchange takes place between each charging point unit and a second distribution unit assigned to it.In particular, there is no direct data exchange between each charging point unit and the second distribution unit assigned to it. Because direct data exchange takes place between each charging point unit and the second distribution unit assigned to it, the second distribution unit can be designed very simply, as no data processing equipment is required for data communication with the charging point unit(s) beyond the equipment needed for supplying electrical energy.The transmitter and receiver of the first distribution unit now forwards the unique identification number of the charging point unit's connection section and the driver's unique identification number to a processor of the first distribution unit, which stores the unique identification number of the charging point unit's connection section and the driver's unique identification number in a data memory of the first distribution unit. The processor of the first distribution unit then reads the data stored in the first distribution unit's data memory, which can also be referred to as reference data, and uses this data to verify, i.e.,Based on the reference data, the system determines whether the unique identification number of the charging point unit's connection section, the driver's unique identification number, or a combination of both will result in an "OK" or "Not OK" status. For example, the reference data might contain an error message related to the charging point unit's connection section selected by the driver because a charging attempt with that section was unsuccessful and a replacement of that section is already scheduled for the next few hours. In this case, the check would, for example, result in a "Not OK" status.

[0082] If the check results in an "OK" status, the processor of the first distribution unit sends the "OK" status, which could, for example, consist of a "0" (zero), to the transmitter / receiver of the first distribution unit. This transmitter / receiver then sends the "OK" status via the electrically conductive cable to the transmitter / receiver of the charging point unit. The transmitter / receiver of the charging point unit then sends the "OK" status back to the processor of the charging point unit, which in turn sends the "OK" status back to the wireless transmitter / receiver of the charging point unit. Finally, the wireless transmitter / receiver of the charging point unit sends the "OK" status to the mobile phone and the app installed on the mobile phone, which then displays a message indicating that the charging process can begin.

[0083] When the mobile app displays a message indicating that charging can begin, the driver connects a charging cable to both the selected connection point of the charging unit and the electric vehicle's battery. A sensor unit in the charging unit detects that a charging cable is connected to the selected connection point and sends this information, also known as charging data, to the charging unit's processor. The processor then sends the information that the charging cable is connected to the selected connection point to the unit's transmitter / receiver, which in turn transmits the information via the wired connection between the charging unit and the first distribution unit to the transmitter / receiver of the first distribution unit.The transmitter and receiver of the first distribution unit now forwards the information that the charging cable is connected to the selected connection section of the charging point unit to the processor of the first distribution unit. The processor then stores this information in a data memory of the first distribution unit. The first distribution unit then provides the electrical energy required to charge the electric vehicle's electrical energy storage device at the voltage on the second voltage level, thus supplying the second distribution unit with electrical energy at the voltage on the second voltage level.The second distribution unit now provides the electrical energy with the electrical voltage at the third voltage level, so that the charging point unit is supplied with electrical energy at the electrical voltage at the third voltage level, so that the electrical energy storage of the electric vehicle is charged with electrical energy.

[0084] Once the electric vehicle's battery is charged, the app installed on the driver's mobile phone displays a message indicating that the driver wishes to end the charging process. The driver's mobile phone wirelessly transmits this information to the charging point unit's wireless transmitter / receiver. The transmitter / receiver then sends this information to the charging point unit's processor. This information can also be referred to as charging data. The charging point unit's processor then sends this information back to the transmitter / receiver.The charging point unit's transmitter and receiver now sends the information via the wired connection between the charging point unit and the first distribution unit assigned to the charging point unit to the transmitter and receiver of the first distribution unit. The transmitter and receiver of the first distribution unit then forwards this information to the processor of the first distribution unit, which stores the information that the driver wishes to end the charging process in the data memory of the first distribution unit.The first distribution unit now ceases supplying the electrical energy required to charge the electric vehicle's battery at the second voltage level, thus cutting off the supply to the second distribution unit at the second voltage level. The second distribution unit also now ceases supplying the electrical energy required to charge the electric vehicle's battery at the third voltage level, thus cutting off the supply to the charging point unit at the third voltage level.As described in the section on the start of charging, the processor of the first distribution unit now sends an "OK" status to the processor of the charging point unit. The charging point unit's processor then transmits this information wirelessly to the driver's mobile phone via the transmitter / receiver unit. The app then indicates that the driver can disconnect the charging cable from the selected connection point of the charging point unit. The driver disconnects the charging cable from the selected connection point and drives their electric vehicle away from the connection point with the now-charged battery.

[0085] If the check results in a "not OK" status, the processor of the first distribution unit sends the "not OK" status, which might consist of a "1" (one), to the transmitter / receiver of the first distribution unit. This transmitter / receiver then sends the "not OK" status via the electrically conductive cable to the transmitter / receiver of the charging point unit. The transmitter / receiver of the charging point unit then sends the "not OK" status to the processor of the charging point unit, which in turn sends the "not OK" status to the wireless transmitter / receiver of the charging point unit. Finally, the wireless transmitter / receiver of the charging point unit sends the "not OK" status to the mobile phone and the app installed on the mobile phone, which then displays a message indicating that the charging process cannot be started.If the app installed on the mobile phone displays the information that the charging process cannot be started, the driver scans a QR code of the second connection section of the charging point unit and the steps already described are repeated for the second connection section of the charging point unit.

[0086] In particular, since the verification for multiple charging point units can be performed centrally by the first distribution unit, and only very small amounts of data need to be transmitted and processed by each charging point unit, the charging point units can be designed very simply, as, for example, low-power processors and small data storage capacities are sufficient. Furthermore, because the verification for multiple charging point units can be performed centrally by the first distribution unit, an update of the reference data for multiple charging point units can be carried out at a central location, namely at the first distribution unit. The status "OK" and the status "not OK," and especially the "0" (zero) or "1" (one), can also be referred to as the initial data.

[0087] In one embodiment of the method for operating an electric charging network system, several electrical energy storage devices from several electric vehicles, each electric vehicle being assigned one of the several electrical energy storage devices, are connected to several connection sections of several charging point units, each connection section being assigned to one of the several charging point units, such that each electrical energy storage device is assigned to one of the several connection sections. The first distribution unit records the times at which the electrical energy storage devices are connected to the connection sections.Based on the specified times and their chronological sequence, the corresponding electrical energy is supplied to the charging point units, and the charging processes for the electrical energy storage devices are initiated in this chronological order. This approach is particularly advantageous when more electrical energy is required to charge multiple electrical energy storage devices than can be supplied by the electrical charging network system to the corresponding charging point units within a specific time interval, as the chronological sequence of charging processes allows for efficient charging of the electrical energy storage devices.

[0088] In one embodiment of the method for operating an electric charging network system, several electrical energy storage devices of several electric vehicles, wherein each electric vehicle is assigned one of the several electrical energy storage devices, are connected to several connection sections of several charging point units, wherein each connection section of the several connection sections is assigned to one of the several charging point units, such that each electrical energy storage device of the several electrical energy storage devices is assigned to one of the connection sections. The first distribution unit records the monetary amounts that the drivers of the electric vehicles would be willing to pay to charge the electrical energy storage devices of their electric vehicles.Based on the monetary amounts and their order (when the amounts are arranged in descending order), the corresponding electrical energy is supplied to the charging point units, and the charging processes for the electrical energy storage devices are started in this sequence. This approach is particularly advantageous when more electrical energy is required to charge multiple electrical energy storage devices than can be supplied by the electrical charging network system to the corresponding charging point units within a specific time interval, as the sequence of charging processes allows the electrical energy storage devices to be charged efficiently.

[0089] In one embodiment, the charging point unit is designed to be retractable. For this purpose, the charging point unit has a first section that is inserted into the ground and a second section that can be moved relative to the first section from a retracted position to an extended position and vice versa by means of a drive unit. When charging begins, if the transmitter and receiver unit of the charging point unit sends the status "OK" to the processor of the charging point unit, the processor sends a control signal to the drive unit, causing the drive unit to move the second section relative to the first section into the extended position, so that the second section protrudes from the ground.The second section features the connection section of the charging point unit selected by the driver, making this section accessible. After charging, when the charging point unit's sensor detects that the charging cable has been removed from the selected connection section, the charging point unit's processor sends a control signal to the drive unit. This causes the drive unit to retract the second section relative to the first section, so that the second section is once again recessed into the floor. In another embodiment, the charging point unit can be mounted on or attached to the wall of a parking garage. In yet another embodiment, the charging point unit can be mounted on or attached to the wall of an underground parking garage.

[0090] As previously described, the charging point unit comprises a transmitter and receiver for wireless transmission and a second transmitter and receiver unit. The transmitter and receiver unit for wireless transmission and reception can also be referred to as the first transmitter and receiver unit of the charging point unit, and the second transmitter and receiver unit can also be referred to as the second transmitter and receiver unit of the charging point unit.

[0091] Another aspect of the present invention is a computer program comprising commands that cause the electrical charging network system to execute the steps of the described method. A further aspect of the present invention is a computer-readable medium on which the computer program is stored.

[0092] When means are described in connection with the present invention, such as means for real-time data acquisition and communication, these means are preferably a component of one component of the electric charging network system or a component of several components of the electric charging network system, such that several components of the electric charging network system have means and the means of the individual components are coordinated to perform the described steps. Each means preferably includes a processor that can execute a corresponding computer program and a data memory on which the computer program is stored.

[0093] It should be further noted that "having" does not exclude any other elements or steps, and "a" or "an" does not exclude a plurality. It should also be noted that features described with reference to one of the above embodiments may also be used in combination with other features of other embodiments described above. Reference numerals in the claims are not to be considered as a limitation. REFERENCE MARK LIST 1 charging point unit 3 first section 5 second section 7 Front plate 9 first charging point 11 sockets 13 second charging point 15 NFC Chip 17 bollards 19 cable duct 21 power cables 23 data cables 25 Network connection point 27 bollard system cables 29 Charging cables 31 Pump system cables 33 Pump system 35 valve 37 floor sensors 39 external NFC interface 41 first connection point IP69 43 second connection point IP69 45 third connection point IP69 47 charging points 49 charging capsules

Claims

[1] Charging point unit (1) for charging electrical energy storage devices of electric vehicles, the charging point unit comprising a first section (3) that can be inserted into a floor section, a drive unit and a second section (5), wherein the second section (5) can be moved relative to the first section (3) from a retracted position to an extended position and from the extended position to the retracted position by means of the drive unit.

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