WO2015075203A1

WO2015075203A1 - Charging device for electric vehicles

Info

Publication number: WO2015075203A1
Application number: PCT/EP2014/075329
Authority: WO
Inventors: Florian Rothfuss
Original assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority date: 2013-11-21
Filing date: 2014-11-21
Publication date: 2015-05-28
Also published as: DE102013112845A1

Abstract

The invention relates to a charging device for electric vehicles, comprising at least one charging station (18). The at least least one charging station comprises a charging socket, a charging plug, or an induction coil. A charging module (14) is provided, which comprises at least the charging station (18), which is arranged completely in the charging module (14) and remains in the charging module during use. The charging module (14) comprises a network connection (20) for a public power network. A lounge module (16) is provided for the user(s) of the vehicle to be charged, which lounge module comprises at least one lounge room for the lounging of the user(s) during the charging process. At least one charging module (14) and at least one lounge module (16) are provided in a common transportable housing (12) or at least one charging module (14) and at least one lounge module (16) are each provided in at least one transportable housing (12). At least the one transportable housing (12) can be installed at a destination at least at times.

Description

Ladeeinrichtung für ElektrofahrzeugeCharging device for electric vehicles

The invention relates to a charging device for electric vehicles, which has at least one charging station, which includes a charging socket, a charging plug or an induction coil to charge the battery of an electric vehicle.

Battery-powered electric vehicles have a significantly reduced range compared to internal combustion engine-powered vehicles and can also be charged much more slowly with electrical energy than is the case when refueling an internal combustion engine vehicle. For a broad acceptance of electromobility, it is therefore important to provide a charging network that allows the users of electric vehicles to load their vehicles as quickly as possible. At the same time it is necessary that a nationwide infrastructure is created, which allows the user of an electric vehicle such a charge.

From US 5,847,537 A a mobile charging device for electric vehicles is known, which consists of a container in which the necessary components, such as charging stations and support points for installation of the charging stations outside the container, are transported to set up this container at a place of use. Subsequently, the individual charging stations are removed from the container and positioned by means of a support frame outside the container and attached to the support frame to the container. In the support frame, the electrical cables are guided. This requires expensive installation work to take such a charging device in use. Similarly, a time-consuming dismantling is required to transport this charger to another destination.

The invention is therefore based on the object to propose a charging device for electric vehicles, which is flexibly adaptable to the required infrastructure and also makes the perceived as annoying dwell time while charging for the user attractive and useful.

This object is achieved according to the invention by a charging device in which a charging module is provided, which has at least the charging station, which is arranged completely in the charging module and also remains in use in the charging module, wherein the charging module further comprises a network connection for a public power grid. The charging device is set up ready for operation at the destination. As a result, a quick startup can take place since only one connection to the public power grid is required for the transportable housing or housing after the installation at the destination in order to operate the charging device. Further construction or installation work is not required. In addition to the charging module, a residence module is provided for the user (s) of the vehicle to be charged, which comprises at least one recreation room for the user's residence during the charging process. As a result, on the one hand, the user's electric vehicle can be charged via the charging station, wherein during the charging time the user can stay in the accommodation module, in which he can relax, for example, and consume in particular provided drinks. According to a first embodiment, at least one charging module and at least one residence module are provided in a common transportable housing. As a result, the at least one transportable housing can be set up at a destination at least temporarily, in a simple manner.

Alternatively, at least one loading module can be provided in at least one transportable housing and at least one residence module can be provided in another transportable housing, wherein these housings can both be set up at the destination and in particular can be connected to one another. This allows the creation of larger lounges within the lounge module or the provision of other functions and facilities to make the lounge module attractive to the user. For example, a WLAN connection can be provided so that the user can both relax and work. Due to the design of the charging station from at least one portable housing, such housing can also be easily moved to another location. Since the charging module is designed with a mains connection for a public power grid, a simple connection can be provided in order to create a planar interurban charging infrastructure with such charging devices.

Furthermore, such charging devices have the advantage that they can do without personnel and the user, for example, by means of a smartphone app to get access and billing can be done about it.

Preferably, the transportable housing of the charging device is container-shaped. In particular, so-called freight containers, such as twenty or forty foot containers, which are also known as sea containers, are provided. As a result, a simple installation of the charging device without a foundation or with only little foundation work can be made possible. In addition, the transportability of such containers is given.

In the at least one transportable housing of the charging device, a roof is preferably provided which extends at least over a parking space for a vehicle for the charging process. As a result, the user also go dry foot after parking the vehicle in the charging station in the residence module.

A preferred embodiment in a first portable housing, a charging station and in at least one other portable housing before at least one residence module. As a result, pleasant spatial conditions can be created for the user or users. At the same time, for example, two, three or four charging stations can be provided along the charging module in order to charge batteries of the electric vehicles.

Preferably, the at least two transportable housing in an angular arrangement, an L-shaped arrangement, in a row behind one another or in parallel next to each other can be arranged. The installation of these transportable housings can be adapted to the conditions of the location. As a result, increased flexibility is given regardless of location.

The charging module comprises at least one electrical energy store or a buffer battery, so that this charging module manages with a low connected load. This generally requires no major electrical installation work or even the construction of transformer stations to supply this charging device. As an electrical energy storage both conventional batteries and a combination of an electrolysis, a hydrogen tank and fuel cells or capacitors may be provided.

Additionally and / or alternatively, the charging module may have an external power source, such as a wind turbine, a photovoltaic system, a solar thermal system or the like. As a result, exclusively or in addition to the power of a public network, the electrical energy store of the charging module can be charged.

Furthermore, the charging device, in particular the charging module, comprises an electricity meter, which is preferably connected to a billing device connected thereto. This allows the user to be sent the bill immediately after the service has been used. Alternatively, it can be provided that a so-called flat rate is set up and the customers can bill this flat rate.

In the charging module, a switching device is preferably provided, which comprises at least one rectifier and converts the mains voltage of a public power grid into a DC voltage. As a result, the electrical energy can be supplied directly to the charging station and / or the backup battery.

Furthermore, the charging station of the charging module can comprise a DC charging point, in particular a combined charging system. Alternatively or additionally, a so-called Chademo system, a Tesla SuperCharge system and / or an AC charging point with, for example, a power of 22 kW may be provided. As a result, all electric vehicles can be supplied with electrical energy despite different systems.

Advantageously, an electronic interface is provided on each portable housing, through which two or more portable housing can be connected to each other electronically. As a result, it is only necessary that a transportable housing is provided with a connection to a public power network, wherein the other transportable housing are supplied via this interface.

The invention and further advantageous embodiments and developments thereof are described in more detail below with reference to the examples shown in the drawings and explained. The features to be taken from the description and the drawings can be applied individually according to the invention individually or in combination in any combination. Show it:

1 shows a schematic view of a first embodiment of a charging device,

FIG. 2 shows a schematic view of an alternative embodiment of a charging device to FIG. 1,

FIG. 3 shows a perspective view from above of a loading module according to FIG. 2,

Figure 4 is a perspective view from behind of a loading module according to Figure 2 and

Figure 5 shows a schematic circuit arrangement of a switching device of a loading module.

FIG. 1 shows a schematic top view of a first embodiment of a charging device 11. The charging device 11 comprises a transportable housing 12, in which a charging module 14 and a residence module 16 are provided. The transportable housing 12 is designed, for example, as a container-shaped container or as a freight container. The charging module 14 has at least one - according to the figure 1, for example, two - charging stations 18, each associated with a parking space 24 for a vehicle. The charging module 14 further comprises a mains connection 20, so that the charging module 14 can be connected to a public power grid. On the side of the transportable housing 12, an additional parking space 19 or an outdoor area can be provided, which can serve for the user's stay during the charging process or for a waiting vehicle.

Preferably, a roofing 22 is provided on the transportable housing 12, which preferably serves as protection of the parking spaces or 24. This allows the user to get dry foot from the parking space 24 in the residence module 16.

The roof 22 may be provided for receiving an external power source, such as a photovoltaic or solar thermal system. Furthermore, a wind turbine can be provided adjacent to the canopy or in conjunction with the canopy in order to supply the energy obtained via such an external energy source 28 to a preferably provided buffer memory 21 of the charge module 14, such as a battery.

The charging module 14 may include one or more charging stations 18, wherein a DC charging point of the charging station 18 may be configured as a combined charging system, as a chademo system or as a Tesla SuperCharge system. For example, at an AC charging point, a power of 22 kW may be provided.

The residence module 16 can be formed varied in the equipment. This lounge module 16 may include, for example, a work desk and / or bar with bar stools, a kitchenette, one or more TV and / or WLAN connections, and other features. These can be, for example, a relaxation furniture or a children's play area. There may also be sleeping places or bunk beds as well as sanitary facilities as well as meeting or business areas.

FIG. 2 shows an alternative embodiment of a charging device 11 of FIG. In this embodiment, for example, two transportable housing 12 are provided, wherein in a portable housing 12, the loading module 14 and in the other portable housing 12, the residence module 16 is provided. Due to the size of the transportable housing 12, four charging stations 18 can be provided next to one another, for example, so that the four systems described above are each provided on a single charging module 14. The transportable housing 12 are preferably associated with each other in an L-shape, whereby preferably with the presence of the roofing 22, a space-saving arrangement can be created.

Alternatively, the charging device 11, which consists of at least two transportable housing 12, also be arranged such that these two transportable housing 12 are arranged in a row behind one another or at a different angle from 90 °.

FIG. 3 shows a perspective view from the front of the loading module 14 according to FIG. The charging stations 18 are arranged in the housing 12 and accessible to the user only from the outside via a user interface 23 and a connection point 25. The individual charging stations 18 are spaced apart from one another such that a vehicle can park directly in front of them. In the transportable housing 12 of the loading module 14, a buffer memory 21 is also provided in order to operate all charging stations 18 simultaneously. Furthermore, the transportable housing 12 has a door 37 to enter the interior. This door 37 is arranged, for example, centrally to an end face of the transportable housing 12, so that they can represent a passage door in the juxtaposition of several transportable housings 12 in succession, side by side or corner, to move from the one portable housing 12 into the adjacent transportable housing 12 to arrive.

FIG. 4 shows a perspective view from the rear of the transportable housing 12 with the loading module 14. For example, a door 37 is provided on an end face of the transportable housing 12 and on a side wall, so that when a plurality of loading modules 14 and / or or stay modules 16, which also have in the same areas such doors 37, a passage from one to the other housing 12 can be created. As a result, the transportable housings 12 allow a modular arrangement with respect to one another so that one or more loading modules 14 and one or more accommodation modules 16 can be connected to one another in series, next to one another, or in an L-shaped arrangement or other arrangements and thereby in the arrangement of two and more portable housings 12, a closed unit or a uniform charging device is provided. At least one interface 39 is preferably provided on each outer housing 12 of the housing 12 on each transportable housing 12, wherein at least one such interface 39 is preferably provided at least on an end wall and / or a side wall of the housing 12, in which the doors 37 are also arranged , As a result, when connecting the two transportable housing 12, an externally inaccessible interface connection, for example, for electricity, are created. In addition, such an interface may also include lines for air conditioning or other data lines.

Such a configuration of the transportable housing 12 with defined interfaces 39 and doors 37 allows a modular construction. The power connector 20 is closed for protection from the outside or in particular from the inside and can be switched on and off inside a switch, so that misuse is prevented.

FIG. 4 may also depict a rear view of a resident module 16, wherein the respective opposite and unrepresented sides may include windows and / or glass fronts to make the user's stay comfortable.

FIG. 3 shows a schematic view of a switching device 30 of the charging module 14. The switching device 30 comprises a mains connection 20 which can be connected to a public power grid. Immediately thereafter, an electricity meter 31 is provided which detects the required power for the charging device 11 for billing. Downstream of this, a rectifier 32 is provided to charge the buffer memory 21 when the charging stations 18 are not in use. The rectifier 32 downstream of the embodiment further rectifier 33 are provided, wherein at each charging station 18 another system - ie Combined Charging System, Chademo system, Tesla system or SuperCharger system - is provided. The charging station 18 comprises a charging socket or a charging plug to which a counterpart of the electric vehicle can be connected. Alternatively, the charging station 18 may also include an induction loop for non-contact charging of a battery of the electric vehicle.

The external energy source 28 in turn feeds a rectifier 35 in order, if necessary, to supply the charging station 18 directly and / or to charge the buffer memory 21.

Due to the inventive design of the charging device 11, the longer charging time compared to refueling of a vehicle with an internal combustion engine by the residence module 16 can be made pleasant, and this can be used on the one hand for relaxation and on the other hand to work. This creates no loss during charging.

Furthermore, such a charging device 11 can be adapted to a changing infrastructure, since this is designed as a mobile because of the load module 14 and the embodiment as at least a portable housing 12, which can be set up with little or no foundation work, and quickly set up at other locations. In addition, such a charging device 11 may also be expandable. One or more transportable housings 12 can enable an expansion via an interface, in particular electrical connection, so that, for example, sanitary modules, sleep modules or relaxation modules, business unit modules or the like can be additionally supplemented.

Claims

Charging device for electric vehicles, comprising at least one charging station (18), which comprises a charging socket, a charging plug or an induction coil, characterized

a charging module (14) is provided which has at least the charging station (18) which is arranged completely in the charging module (14) and remains in use in the charging module (14), and the charging module (20) has a power connection (20) for includes a public power grid,

a residence module (16) for the user (s) of the vehicle to be loaded, which comprises at least one common room for the user's residence during the charging process, and

in that at least one loading module (14) and at least one residence module (16) are provided in at least one transportable housing (12) in a common transportable housing (12) or at least one loading module (14) and at least one residence module (16) a portable housing (12) at a destination at least temporarily can be set up.
Loading device according to claim 1, characterized in that the transportable housing (12) is container-shaped or designed as a freight container.
Charging device according to claim 1, characterized in that on at least one transportable housing (12 a canopy for at least one parking space of the vehicle for the charging process can be arranged.
Charging device according to claim 1, characterized in that the at least two transportable housing (12) in an angular arrangement, L-shaped arrangement, in series one behind the other or parallel can be arranged side by side.
Charging device according to claim 1, characterized in that the charging module (14) at least one electrical energy storage, in particular a battery, a combination of electrolysis, hydrogen tank, fuel cell, capacitor comprises.
Mobile charging device according to claim 1, characterized in that the charging module (14) an external power source, in particular a wind turbine, a photovoltaic system, a solar thermal systems or the like, can be connected.
Charging device according to claim 1, characterized in that the charging module (14) comprises a power meter and preferably a billing device connected thereto.
Charging device according to claim 1, characterized in that the charging module (14) comprises a switching device which comprises at least one rectifier and converts the mains voltage into a DC voltage.
Charging device according to claim 1, characterized in that the charging module (14) at least one charging station with a DC charging point, in particular a Combined Charging system, a Chademo system or a Tesla SuperCharger system or an AC charging point with, for example Power of 22 KW, includes.
Charging device according to claim 1, characterized in that an electronic interface is provided on each transportable housing (12) through which two or more transportable housing (12) are electronically interconnected.