Mobile power supply and energy system

Abstract

The invention relates to a flexibly deployable energy station (10, 11) for the decentralized supply of electrical devices. It comprises a housing (12) and at least one slot (S1, S2, S3, S4) for receiving at least one rechargeable battery (30, 32), wherein the slot (S1, S2, S3, S4) is located within the housing (12), and wherein the housing (12) is compatible with a form of a system housing. The invention further relates to an energy system (100).

Description

MOBILE POWER SUPPLY AND ENERGY SYSTEM

[0001] The present invention relates to an energy station for the decentralized supply of electrical energy to wired electrical devices.

[0002] Patent EP3204995B1 discloses a portable power supply for powering corded power tools. The portable power supply has slots for rechargeable batteries on the outside of a housing. Technical task

[0003] Although battery-powered electrical devices are now used in many areas, there is still a need to be able to use corded electrical devices as independently of location as possible.

[0004] Typical applications include, for example, the use of corded electrical appliances, especially those with high power requirements such as corded hand tools or hot air hair dryers, ovens, microwave ovens, or the like, while traveling, camping, on construction sites and / or generally in places where no other suitable mains connection is within reach.

[0005] While there are already energy stations that are basically able to provide location-independent mains connections or other standardized power supply connections, for example based on USB-C, using rechargeable batteries.

[0006] However, using such well-known power stations is often cumbersome and inflexible. Users must provide specifically compatible batteries for the power station, charge them with a charger, and then transport the power station, along with the batteries, to the intended location and connect the corded electrical device. It's possible that the power station or the batteries, due to insufficient capacity, won't provide enough power. Conversely, the power station may require a minimum number of batteries to operate, providing significantly more capacity than is actually needed for the intended application. Such oversized power stations are generally unnecessarily expensive. Their considerable weight also makes transporting them more difficult and costly.It is also associated with high costs for the user if, for example, to facilitate transport, they acquire specifically adapted energy stations for different applications, for example with different total capacities.

[0007] The object of the present invention is therefore to provide a flexibly deployable power station for the decentralized supply of electrical energy to wired electrical devices. Preferably, the power station should be usable under as many different operating conditions as possible. A long service life is also desirable. Technical solution

[0008] The problem is solved first by an energy station comprising a housing, at least one slot for receiving at least one rechargeable battery, wherein the slot is located inside the housing, and wherein the housing is compatible with a form of system housing.

[0009] The slot can accommodate a rechargeable battery to power the power station. The rechargeable battery is replaceable, ensuring a long and effective lifespan for the power station. By selecting the appropriate rechargeable battery, the power station can be flexibly adapted to specific needs. In particular, the electrical parameters of the rechargeable battery can be chosen as required. For example, the available capacity, output voltage, and / or maximum current can be selected to suit individual requirements, resulting in a wide range of applications for the power station, especially for the decentralized power supply of wired electrical devices.

[0010] The enclosure is compatible with a system enclosure form. The system enclosure can conform to a standardized shell. The standardized shell can be designed for use with one or more other devices. The system enclosure can, for example, conform to a standardized packaging. It can be stackable. In particular, it can be designed to be stacked or linked together with other identical system enclosures or with similar system enclosures compatible with each other in a series.

[0011] This makes the power station particularly easy to handle. In particular, the power station can be used very conveniently together with other devices housed in similar system enclosures.

[0012] The power station can also be stored in compartments designed to accommodate such system housings or devices housed within such system housings. This further enhances the power station's flexibility.

[0013] The power station could be used in leisure activities, such as camping, or for events like music concerts, where, for example, wired audio equipment needs a decentralized power supply. It could also be used in the automotive sector. For instance, the power station could be integrated into shelving systems designed to house a suitable enclosure, and / or used in the storage area of ​​a vehicle, such as a van. Due to its exceptional flexibility and versatility, the power station could also be used in other applications.

[0014] If the housing is designed in the form of the system housing, i.e., if the power station is equipped with the system housing, it can easily fit into a number of other devices with such system housings.

[0015] Particularly widespread and therefore very diverse forms of system enclosures are so-called Euroboxes. These can be understood as stackable containers.

[0016] The Eurobox can have a uniform grid dimension. For example, it can have a base area with nominal dimensions of 0.3 m x 0.2 m, 0.4 m x 0.3 m, or 0.6 m x 0.4 m. It can also correspond to a standardized, so-called small load carrier. Generally, the Eurobox can have a nominal dimension that is an integer fraction of a standard pallet with nominal dimensions of 1 m x 1 m, in particular 0.8 m x 1.2 m or 1.0 m x 1.2 m.

[0017] The Eurobox may have features to prevent it from slipping laterally, especially when stacked with other Euroboxes. For example, it may have protrusions on its underside, such as feet or raised guide edges. The Eurobox may also have corresponding recesses or guide edges on its upper side, which, together with the protrusions of another Eurobox, achieve the desired holding and guiding function when stacked.

[0018] The housing can have multiple side panels, with connections for external devices to the power station provided on at most two, and in particular only one, of these side panels. One or both of these side panels with the connections can define the front of the housing. The power station can then be installed, for example, in a shelving unit or similar structure with its front panel facing away from the shelving unit, so that all connections are easily accessible from the front, or, in the case of two sides with connections from the front as well as from a free second side.

[0019] The housing can have at least one electrical connector on its top and / or bottom for connection to a second power station, the housing of which is compatible with that of the power station. For example, one such electrical connector can be provided on the top and another on the bottom. Several power stations can then be stacked on top of each other, with the power stations being electrically connected to each other via these connectors. This makes it possible to electrically couple different types of power stations. One power station, for example, can contain power electronics, while another power station can contain one or more batteries, perhaps with a particularly high capacity.The power electronics of one energy station can then be used to convert the energy from the batteries of the other energy station. The electrical connectors can, for example, have a socket, a plug, and / or a contact surface.

[0020] The task is also solved by an energy station comprising a housing and at least two slots for receiving rechargeable batteries, the slots being located inside the housing.

[0021] The power station can also include at least one DC link converter for converting one or more input voltages from one or more of the slots into a DC link voltage of an intermediate circuit and at least one utility converter for converting the DC link voltage of the intermediate circuit into a utility voltage.

[0022] Rechargeable batteries can be connected to the slots. The output voltage can be used to operate, for example, corded electrical devices, provided the batteries have a sufficient charge. It is also possible to feed the output voltage into the converter via an external mains connection to charge the batteries.

[0023] The power station can therefore have multiple slots for batteries. This allows for different numbers of batteries to be inserted and connected to the power station, depending on requirements such as the total capacity needed and / or the maximum power output. This flexibility allows the power station to be adapted to specific needs. In particular, the overall weight and / or cost of the power station can be adjusted to suit individual requirements. The main wear parts, typically the batteries, can be easily replaced or renewed, ensuring a very long overall lifespan for the power station.

[0024] Because at least one DC link converter is provided, which can be electrically connected between one or more of the slots and the DC link, different types and / or different numbers of batteries can be inserted into the slots and used to generate the operating voltage. The input voltages are converted into the DC link voltage by the DC link converter, so that the DC link voltage can be kept constant at a predefined value; and this is independent of, or at least largely independent of, the batteries used and / or the battery states of the batteries used.

[0025] Power electronics for connecting the intermediate circuit to the interfaces or the batteries can be divided into a large number of individual circuits, so that each of the individual circuits can only be designed for low power and can therefore be built with cost-effective, low-power power components.

[0026] Only the power electronics for connecting the intermediate circuit to the user interface should be designed for the maximum total power output required. Therefore, it may be necessary to use high-performance, and thus potentially expensive, high-power components only for this power electronics section.

[0027] The power station therefore requires only a few high-performance power components, such as high-performance semiconductor switches. Overall, the multi-stage design with an intermediate circuit allows for cost-effective manufacturing of the power electronics of the power station.

[0028] The load connection and / or the intermediate circuit voltage can have different electrical parameters. For example, they can be DC voltages and / or AC voltages. They can have different voltages and / or connection values.

[0029] For example, the operating voltage can be 230 V AC, 5 V DC, 12 V DC, or 380 V three-phase. The operating voltage can be tapped from a terminal on the housing. The terminal can be recessed into the housing. It can be accessible from outside the housing. It is also conceivable to provide multiple operating voltages, for example, by means of several different terminals, each derived from the intermediate voltage.

[0030] The power station can be mobile, particularly portable. Its weight, excluding batteries, can be a maximum of 10 kg, ideally a maximum of 5 kg. It can have a total weight, including batteries, of no more than 23 kg, so that the power station, including batteries, is comfortably portable for an average adult. To improve mobility, the power station can also have a compact design. For example, its housing can be dimensioned so that its height, width, and / or length do not exceed 1 m. It is also conceivable that the power station has a chassis, for example, with casters or wheels. The chassis, especially the casters or wheels, can be foldable so that it can be stored in a space-saving manner when not in use and / or so that, for example, several power stations can be stacked on top of each other.

[0031] The intermediate circuit converter and / or the input converter can be configured for bidirectional conversion. This makes it possible to use the power station both to provide mains voltage, for example to power a corded electrical device, and to charge one or more of the batteries using a voltage source connected to the input terminal.

[0032] It is advantageous if the power outlets are hot-pluggable. "Hot-pluggable" means that a battery can be connected to or removed from a power outlet while the power station is operating, without damaging the power station, any of the batteries, or any connected electrical device. This allows a battery to be added, replaced, and / or removed while the power station is running, for example, to power a connected electrical device. Batteries with a low charge can thus be recharged, for example, using a separate charger, while the power station is operating without interrupting its operation. This makes it possible to operate an electrical device connected to the power station uninterrupted and for extended periods, similar to a mains connection.This can be particularly advantageous for operating cooling devices, for example when traveling or camping. Medical devices, such as oxygen generators for respiratory support, external blood pumps for cardiac support, or similar equipment, can also be operated largely independently of location and safely, as long as sufficiently charged spare batteries are available.

[0033] The energy station can also include a load management system. This system can be configured to distribute electrical loads to the relevant slots, and thus specifically to the batteries, based on one or more battery states of the batteries connected to the slots. A battery state can, for example, correspond to a state of charge. It can also correspond to an aging state. More generally, a battery state can correspond to an electrical parameter of the battery in question. The load management system can therefore, for example, prevent batteries with different states of charge from charging or discharging each other instead of supplying power to the user connection.

[0034] It is conceivable, in particular, that the energy station has different operating modes that differ in terms of the path along which electrical power flows.

[0035] To provide electrical power at the user connection, for example, an operating mode can provide that power is drawn from one or more of the batteries via the corresponding interfaces and converted into usable voltage at the user connection via the intermediate circuit.

[0036] An operating mode can also provide for charging one or more of the batteries using the voltage source connected to the load terminal. In this case, the electrical power path can be defined as a flow from the load terminal via the intermediate circuit to the batteries in question.

[0037] It is also conceivable that one or more operating modes could provide for the path to be changed during the operation of the energy station. For example, batteries could be charged sequentially rather than simultaneously.

[0038] Thus, if the energy station is used to charge the batteries, one battery can be charged first, so that this battery can already be used in a battery-powered electrical device, while other batteries are subsequently or continuously being charged.

[0039] Another conceivable operating mode is a boost mode that provides power supplied by the batteries in addition to the power supplied by the mains connection. This would allow wired electrical devices with particularly high power requirements, especially those exceeding the maximum permissible power of, for example, a mains connection, to be operated.

[0040] In one class of embodiments of the invention, the intermediate circuit voltage can be a DC voltage. In this case, the intermediate circuit converter can be designed as a DC / DC converter. In particular, it can be designed as a switching converter and thereby achieve a high conversion efficiency compared to, for example, induction-based converters.

[0041] The power station may additionally include a DC link connection for connection to the DC link. The DC link connection may be a plug, a socket, generally a wired and / or wireless connection. The DC link connection may be unidirectional, for example, for drawing power from or feeding power into the DC link, or bidirectional.

[0042] The intermediate circuit connection can be directly connected to the intermediate circuit.

[0043] Alternatively, a voltage converter, such as a DC / DC converter, can be connected between the DC link terminal and the DC link itself. This provides access to the DC link, for example, on the outside of the housing. Electrical power from a photovoltaic module can then be fed into the DC link of the power station via this terminal.

[0044] Particularly flexible designs of the power station result when the input converter and / or the DC link converter can be connected to the DC link without tools via a corresponding module connector. In this case, the input converter and / or the DC link converter can each be housed in a separate module, for example, each including its own module housing. Depending on requirements, the input converter and / or the DC link converter and / or the corresponding modules can be replaced without tools. This allows, for example, the power station's performance data to be easily adapted to specific needs. For simple, tool-free connection, the module connectors can each include, for example, a standardized socket, a sliding contact, and / or a standardized plug.It is also conceivable that the module connectors are set up for wireless connection, for example via induction.

[0045] For a particularly compact design, the power station's housing can be configured to be resized. For example, the housing can have several sliding or extendable sections. These sections can overlap. The housing can also feature an expandable, accordion-style section. Alternatively or additionally, the housing can have an elastically expandable section. This allows the power station to be reduced in size, for example, when using short and / or thin batteries with small capacities, thus minimizing the overall space required. This also makes the power station easier to carry and allows for particularly flexible use.

[0046] To optimize the lifespan of the power station, particularly the lifespan of the batteries used, the power station can include a climate control element. This climate control element can include a heating element, a cooling element, or, in particular, a combined heating and cooling element. For example, the climate control element could include a Peltier element. It is also conceivable that it could include a fan to regulate convection within the housing.

[0047] To enable use in a wide range of environmental conditions, the power station, and in particular its housing, can be designed to be dustproof and / or waterproof, for example, meeting at least the IP67 standard. Connections can be equipped with self-closing covers, for instance. The edges of the housing can be fitted with seals.

[0048] If the housing has slots, for example for holding batteries, rubber lips and / or rubber seals may be provided at their edges to create a tight seal between the housing and the batteries. The slots may also have covers, so that when no battery is inserted, they are at least dustproof and splashproof.

[0049] It is also conceivable that the energy station comprises one or more additional modules. For example, the energy station could have an inductive current interface for inductive coupling with an external electrical device and / or an external power source. The inductive current interface could be designed as a separate module. The energy station could have a slot to which the inductive current interface can be plugged. This would allow for the cost-effective production of different versions of the energy station with varying performance characteristics.

[0050] Further features and advantages of the invention will become apparent from the following detailed description of an embodiment of the invention with reference to the figures of the drawing, which show details essential to the invention, as well as from the claims.

[0051] The individual features can be implemented individually or in any combination in various versions of the invention. The schematic drawing illustrates exemplary embodiments of the invention, which are explained in more detail in the following description.

[0052] They show:

[0053] a perspective view of an energy station,

[0054] a block diagram of the power station,

[0055] a perspective view of another energy station,

[0056] an energy station stacked on a container in the shape of a Eurobox,

[0057] a perspective view of two different energy stations stacked on top of each other and

[0058] A perspective view of an energy station located in an outdoor area.

[0059] To facilitate understanding of the invention, the same reference numerals are used for corresponding elements in the following description of the figures.

[0060] For illustrative purposes, different embodiments of energy stations are depicted in the various figures, each with at least partially differing features. Unless explicitly stated otherwise, the features shown may also be present in the other alternative embodiments.

[0061] shows an energy station 10, which includes a housing 12.

[0062] The energy station 10 has four insertion slots 14 into which rechargeable batteries (not shown) can be inserted.

[0063] The insertion slots 14 have locking mechanisms with which the batteries can be locked into the respective insertion slots 14 and thus secured against unintentional falling out.

[0064] The housing 12 is essentially cuboid in shape. Several power stations 10 can therefore be placed close together or stacked on top of each other. It is conceivable that the housing 12 is compatible with a system housing, for example, a series of boxes for storing hand tools, so that the housing 12 can be connected to such system housings and / or stacked on top of each other or placed side by side to save space.

[0065] The energy station 10 also has a service connection 16 from which a first service voltage in the form of a 230 V AC voltage can be tapped or supplied. The service connection 16 can, for example, be designed as a protective contact socket.

[0066] It also features a second input connector 18, from which a second input voltage in the form of a 5 V DC voltage can be tapped. The second input connector 18 can, for example, be in the form of a USB-C socket.

[0067] Furthermore, it includes a DC link connection 20, from which a DC voltage of an intermediate circuit can be tapped in the form of a DC voltage.

[0068] The energy station 10 also has handles 22 by which the energy station 10 can be carried to a place of use.

[0069] The housing 12 is designed so that its size, in particular its depth T, can be changed. For this purpose, the housing 12 has an overlap area 24 where two housing parts 26 and 28 of the housing 12 overlap. In the area of ​​the overlap 24, the two housing parts 26 and 28 can be pushed together or pulled apart. This allows the depth T of the housing 12 to be adjusted. In particular, the depth T can thus be adjusted to accommodate the maximum length of batteries used.

[0070] The housing 12 has seals on its edges, so that it is dustproof and splashproof according to IP 67.

[0071] shows a block diagram 100 of energy station 10.

[0072] In the depicted situation, two batteries 30, 32 are connected to two slots S1, S3 of a total of four slots S1, S2, S3, S4. The batteries 30, 32 are rechargeable. For example, the batteries 30, 32 can be lithium-based batteries. In an alternative embodiment, the batteries 30, 32 can also be sodium-ion batteries. It is also conceivable to use different types of batteries. For example, batteries for high peak power and batteries with particularly high capacities but lower peak power and / or lower pulse load capacity can be combined. In this embodiment, one battery can be connected to each slot. It is conceivable, especially for power stations 10 with particularly high total capacities, to provide more than four slots, for example, 8 or 12.

[0073] The slots S1, S2, S3 and S4 are located inside the housing 12 (see Figure 1) in end areas of the insertion slots 14 (see also Figure 1).

[0074] As can be seen from the block diagram 100, the energy station 10 has a modular circuit design.

[0075] An intermediate circuit module 34 is connected between slots S1 to S4 and an intermediate circuit 36. It is connected to the rest of the electronics of the power station 10 by means of tool-free detachable module connectors, for example, plug connectors. The intermediate circuit 36 ​​is maintained at a constant intermediate circuit voltage UZK of, for example, 36 V DC. In alternative embodiments, for example, if the power station 10 is only to provide an AC voltage of, for example, 230 V, the intermediate circuit voltage UZK can also be, for example, above the maximum amplitude, i.e., in the range of 325 and 400 V. In such embodiments, the conversion of the intermediate circuit voltage UZK into the AC voltage can be carried out particularly simply and with high efficiency in terms of circuit design.

[0076] The intermediate circuit module 34 comprises four intermediate circuit converters 38 in the form of DC-DC switching converters. Each of the intermediate circuit converters 38 is connected to one of the slots S1 to S4 and converts the respective voltages present at the slots S1 to S4, provided a battery with a sufficient state of charge is connected to the respective slot, into the intermediate circuit voltage UZK.

[0077] The DC link converters 38 are bidirectional. Depending on the selected operating mode of the energy station 10, they can either provide the DC link voltage UZK in a supply operating mode using the connected batteries, in this example batteries 30, 32, or charge one or more of the available batteries in a charging operating mode when the DC link voltage UZK is applied.

[0078] The intermediate circuit module 34 additionally includes a load management system 40. The load management system 40 is connected to each of the intermediate circuit converters 38. It is configured to control the intermediate circuit converters 38 depending on the selected operating mode of the power station 10. Furthermore, it is configured to distribute the required or to-be-provided electrical power to the slots S1, S2, S3, S4 or to the batteries connected to them, for example, batteries 30, 32, according to a load schedule. The load schedule can depend on the battery status, in particular the state of charge and / or aging, the performance data of the batteries, for example, maximum charging and / or discharging currents and / or capacities, as well as the selected operating mode. In some embodiments, the operating mode can also define whether batteries are to be charged in specific sequences and, if applicable,in what order the batteries should be discharged and / or charged, or whether charges and / or discharges should be distributed evenly across the batteries.

[0079] The intermediate circuit module 34 feeds the intermediate circuit voltage UZK into the intermediate circuit 36.

[0080] Two converters 42 and 44 are combined in a converter module 46. The converter module 46 is also connected to the rest of the electronics of the power station 10 by means of tool-free detachable connectors, such as plug connectors. The converters 42 and 44 are connected to the intermediate circuit 36 ​​via the converter module 46.

[0081] The converter 42 comprises a bidirectional DC / AC converter for the use, in particular generation and / or reception, of a first mains voltage UN1, at a utility terminal 47, for example 230 V AC voltage with a frequency of 50 Hz.

[0082] The utility converter 44 comprises a bidirectional DC / DC converter for the use, in particular generation and / or reception, of a second mains voltage UN2 at a utility terminal 48, for example 5V DC voltage.

[0083] The intermediate circuit voltage UZK can be tapped and / or fed into an intermediate circuit connection 50.

[0084] A controller 52 is provided for controlling the energy station 10. The controller 52 is connected to the intermediate circuit module 34 and the conversion module 46. It is specifically configured to control the load management system 40 as well as the conversion modules 42 and 44.

[0085] It includes a computer with executable program code, a display unit, and an input unit, for example, in the form of a touchscreen. It may also include a wireless interface module, for example, to allow a user of the Energy Station 10 to operate it remotely, for instance, using a program installed on a smartphone.

[0086] Another energy station, number 10, is shown.

[0087] The energy station 10 has a housing 12 in the form of a Eurobox. Its base area has nominal dimensions of 400 mm x 600 mm. Its internal structure, in particular its electrical wiring, corresponds, unless otherwise described below, to the previously described embodiments of energy stations 10.

[0088] The energy station 10 has a slot 14 in which a rechargeable battery 30 is housed. It also has a service connection 47 and an intermediate circuit connection 50.

[0089] The service connection 47 and the intermediate circuit connection 50 as well as the opening of the insertion slot 14, in which the rechargeable battery 30 is accommodated, are all formed on a front side F of the energy box 10.

[0090] The energy station 10 has an edge 53 on its upper side. On its underside, a protrusion 54 in the form of a circumferential edge line is formed.

[0091] The protrusion 54 and the edge 53 are complementary to each other.

[0092] The energy station 10 is shown according to the embodiment shown, however, in the situation shown it is stacked on a container 56.

[0093] Container 53 is also designed in the form of a Eurobox. The Eurobox shape includes handles 54, which allow the container 56 or the energy station 10 to be handled.

[0094] The energy station 10 sits on the container 56. For this purpose, the protrusion 54 of the energy station 10 engages in the edge 53 of the container 56, which is designed to be complementary to the protrusion 54, thus preventing the energy station 10 from slipping laterally relative to the container 56.

[0095] Figure 1 shows the energy station 10 in the embodiment described above, but stacked on top of an energy station 11. Together, the energy station 10 and the energy station 11 form an energy system 100.

[0096] Energy station 11 essentially corresponds to the embodiment of energy station 10.

[0097] One difference is that the energy station 11 has two insertion slots 14, into which two batteries 30, 32 are accommodated. The energy station 11 thus offers the possibility of a particularly high available electrical capacity.

[0098] The batteries 30, 32 may have different charge states and / or different electrical characteristics, for example different electrical capacities.

[0099] The openings of the insertion slots 14 again point to a single side, in particular the front side F, of the housing of the power station 11.

[0100] Both energy stations 10, 11 have housings in the form of Euroboxes, so that they are stacked on top of each other and secured against lateral slippage.

[0101] The Energy Station 11 has no additional connections on its front.

[0102] The energy station 11 can include an intermediate circuit module as described above to provide an intermediate circuit voltage using the batteries 30 and 32 housed within it. The energy station 11 does not have a converter module. Its functionality is provided by the energy station 10. This saves costs as well as internal space requirements for power electronics, etc., in the energy station 11.

[0103] As explained in more detail below, power station 11 has electrical connectors on its upper side that are electrically connected to complementary electrical connectors on the underside of power station 10. The intermediate circuit voltage provided in power station 11 is transmitted via these connectors to power station 10 for further processing and use.

[0104] Both the electrical connectors of energy station 10 and the connectors of energy station 11 are designed as surface contacts.

[0105] Figure 10 shows an energy station 10, which essentially corresponds to the embodiments described above. Only the insertion slot 14, and thus the battery 30 housed within it, is positioned approximately in the center of the front side F.

[0106] As can be seen in the illustration, the power station 10 has the previously described electrical connectors 60 on its upper side. The power station 10 also has such connectors on its underside, but these are not visible for illustrative purposes.

[0107] Figure 1 depicts a situation in which energy station 10 is positioned in an outdoor area A. It can be used there, for example, for camping purposes and / or for events taking place in outdoor area A that require a decentralized energy supply.

[0108] 10 Power station 11 Power station 12 Housing 14 Insertion slot 16 Utility connection 18 Utility connection 20 DC link connection 22 Handles 24 Overlap area 26 Housing part 28 Housing part 30 Battery 32 Battery 34 DC link module 36 DC link 38 DC link converter 40 Load management system 42 Utility converter 44 Utility converter 46 Utility converter module 47 Utility connection 48 Utility connection 50 DC link connection 52 Control 53 Edge 54 Protrusion 56 Container 58 Handle 60 Connector 100 Power system A Exterior F Front S1 Slot S2 Slot S3 Slot S4 Slot S1, S2, S3, S4 Slots T Depth UN1 First utility voltage UN2 Second utility voltage UZK DC link voltage

Claims

Energy station (10, 11) comprising – a housing (12), – at least one slot (S1, S2, S3, S4) for receiving at least one rechargeable battery (30, 32), wherein the slot (S1, S2, S3, S4) is located inside the housing (12), wherein the housing (12) is compatible with a form of a system housing. Energy station (10, 11) according to the preceding claim, characterized in that the housing (12) is designed in the form of the system housing. Energy station (10, 11) according to one of the preceding claims, characterized in that the housing (12) is designed in the form of a Eurobox. Energy station (10, 11) according to one of the preceding claims, characterized in that the housing (12) has several side surfaces, wherein connections for connecting external devices to the energy station (10, 11) are provided only on at most two, in particular only on one, of the side surfaces, in particular a front surface (F). Energy station (10, 11) according to one of the preceding claims, characterized in that the energy station (10, 11) has at least one electrical connector (60) on its top and / or bottom for connection with a second energy station (10, 11), the housing (12) of which is compatible with the housing (12) of the energy station (10, 11) and / or which has a similar housing (12). Energy station (10, 11) according to one of the preceding claims, further comprising - at least one DC link converter (38) for converting one or more input voltages from one or more of the slots (S1, S2, S3, S4) into an DC link voltage (UZK) of an DC link (36), and - at least one output converter (42, 44) for converting the DC link voltage (UZK) of the DC link (36) into output voltage (UN1, UN2). Energy station (10, 11) according to one of the preceding claims, characterized in that the energy station (10, 11) is mobile, in particular portable. Energy station (10, 11) according to one of the preceding claims, characterized in that the intermediate circuit converter (38) and / or the useful converter (42) is / are configured for bidirectional conversion. Energy station (10, 11) according to one of the preceding claims, characterized in that the slots (S1, S2, S3, S4) are hot pluggable. Energy station (10, 11) according to one of the preceding claims, characterized in that the energy station (10, 11) has different operating modes which differ with respect to the path along which electrical power flows. Energy station (10, 11) according to one of the preceding claims, additionally comprising an intermediate circuit connection (20) for connection to the intermediate circuit (36). Energy station (10, 11) according to one of the preceding claims, characterized in that a further voltage converter, for example a DC / DC converter, is connected between the intermediate circuit connection (20) and the intermediate circuit (36). Energy station (10, 11) according to one of the preceding claims, characterized in that the converter (42) can be connected to the intermediate circuit (36) without tools via a connector. Energy station (10, 11) according to one of the preceding claims, characterized in that the intermediate circuit converter (38) can be connected to the intermediate circuit (36) without tools via a connector. Energy system (100), comprising a first energy station (10, 11) according to one of the preceding claims and a second energy station (10, 11) electrically connected to the first energy station (10, 11). Energy system according to the preceding claim, characterized in that the second energy station (10, 11) has a housing (12) compatible with the housing (12) of the first energy station (10, 11), in particular a housing (12) of the same type as the first energy station (10, 11). Energy system according to the previous claim, characterized in that only the first energy station (10, 11) has at least one useful converter (42, 44) for converting an intermediate circuit voltage (UZK) into a useful voltage (UN1, UN2).

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