Device for providing electrical power to an electric vehicle

Abstract

Device (110) for providing electrical power to an electric vehicle (100), wherein the device (110) has the following features: a first device position (120) with a first housing (122) and at least one first electronic functional unit (124) arranged in the first housing (122) for a first function; at least one further device position (140) with a further housing (142) and at least one further electronic functional unit (144) arranged in the further housing (142) for a further function that differs from the first function; and a second device position (130) with at least one second electronic functional unit (134) for a second function, which differs from the first function and the further function differs, wherein the second functional unit (134) is arranged in the first housing (122), wherein at least one of the device positions (120, 140) has a supply connection (150) for electrically connecting the device (110) to a vehicle battery (102) of the electric vehicle (100), wherein at least one of the device positions (120, 130) has an output connection (160) for electrically connecting the device (110) to an electrical consumer (104), wherein the first housing (122) and the further housing (142) are stacked on top of each other and can be connected or joined together, wherein in a stacked state of the housings (122, 142) the main extension planes of the functional units (124, 134, 144) are arranged parallel to each other, wherein the second functional unit (134) has a DC voltage converter and the first functional unit (124) has an inverter and / or a rectifier.

Description

[0001] The present invention relates to a device for providing electrical power to an electric vehicle, in particular also identifiable as a modular power distribution unit or current distribution unit, and to an electric vehicle with such a device.

[0002] Conventional systems designed for electromobility to direct and additionally or alternatively convert electrical energy operate in particular with completely separate units, where each unit may include its own housing with its own cooling connection.

[0003] The publication DE 11 2016 003 577 T5 discloses a charger with an integrated DC / DC converter.

[0004] Document US 2016 / 0226112A1 discloses an energy storage system for hybrid electric vehicles.

[0005] Document DE 10 2018 104 914 A1 discloses an integrated power box or a power arrangement for a vehicle.

[0006] Document DE 10 2017 218 753 A1 discloses a modular drive inverter arrangement.

[0007] Against this background, the present invention provides an improved device for supplying electrical power to an electric vehicle and an improved electric vehicle according to the main claims. Advantageous embodiments are described in the dependent claims and the following description.

[0008] According to embodiments, a modular power distribution unit or modular power distribution unit can be provided as a combination of several separate units or modules in a single housing. In other words, for example, a multifunctional power conversion unit can be provided as a modular solution, where different units can be combined in one housing. Advantageously, according to embodiments, a modular solution for several separate units installed in one housing can be provided, where only the required modules need to be installed, saving space and weight, requiring only one cooling connection, and resulting in improved efficiency and cost.The following are further advantages that can be achieved, for example, by an inverter and / or rectifier, as well as a DC-DC converter, which are connected modularly and installed in a single housing. If necessary, all modules can be integrated into one housing. It is easy to remove a power conversion unit, or more generally, a device layer or level, and retain only the required functions. This allows for a cost-effective solution that permits many possible combinations of functions. Such modularity, in the form of the device or power conversion unit as a modular solution, enables easy adaptation to customer requirements.

[0009] A device for providing electrical power to an electric vehicle is presented, wherein the device has the following features: a first device position comprising a first housing and at least one first electronic functional unit arranged in the first housing for a first function; and at least one further device position with a further housing and at least one further electronic functional unit arranged in the further housing for a further function that differs from the first function, wherein at least one of the device positions has a supply connection for electrically connecting the device to a vehicle battery of the electric vehicle, wherein at least one of the device positions has an output connection for electrically connecting the device to an electrical consumer, wherein the first housing and the further housing are stacked on top of each other and can be connected or joined together, wherein in a stacked state of the housings the main extension planes of the functional units are arranged parallel to each other.

[0010] The electric vehicle can be a land vehicle, in particular a road vehicle. The electric vehicle can have a fully electric, partially electric, or hybrid-electric drive. The electric vehicle can also be referred to as an EV. The electric vehicle has a vehicle battery that supplies electrical energy to an electric motor for propelling the vehicle and to other vehicle functions. A device level can also be referred to as a device level, functional level, or module level. The device can also be referred to as a power conversion unit, current converter unit, or the like. A power conversion unit can include at least one power electronics unit for converting electrical energy, such as rectifiers and / or inverters, or bidirectional DC-DC converters.

[0011] According to one embodiment, the device can also include a second device position with at least one second electronic functional unit for a second function, which may differ from the first and subsequent functions. The second functional unit can be arranged in the first housing. Such an embodiment offers the advantage that functional units required across applications can be combined in a single housing. This reduces costs, installation space, and complexity.

[0012] The second functional unit can include a DC / DC converter, and the first functional unit can include an inverter and, additionally or alternatively, a rectifier. Such an embodiment offers the advantage that functions frequently required in electric vehicles can be implemented in a space-saving and cost-effective manner by means of functional units integrated into a single housing.

[0013] The functional units can also include at least one rectifier, at least one inverter, at least one DC-DC converter, at least one boost converter, at least one buck converter, at least one switching device, at least one control device, at least one filter, at least one galvanic isolation device, at least one insulation monitoring unit, at least one charging device, and additionally or alternatively at least one grid feed-in device. Such an embodiment offers the advantage that, depending on the specific application scenario in the vehicle, a suitable configuration of the device with application-specific functional units can be implemented.

[0014] Furthermore, at least one of the device positions can have an output connection designed as a motor connection for electrically connecting the device to an electric motor of the electric vehicle, at least one output connection for providing DC voltage, at least one output connection for providing AC voltage, at least one mains connection for electrically connecting the device to an in-vehicle microgrid, at least one further supply connection for electrically connecting the device to an external source of electrical power or an in-vehicle fuel cell, and additionally or alternatively at least one network connection for connecting the device to an in-vehicle communication network. The communication network can have a serial bus system, such as a CAN bus (Controller Area Network) or the like.A microgrid can be an electrical network that provides, for example, an alternating voltage of 3 x 0-230 volts ± 15 percent or 3 x 0-400 volts ± 15 percent with a frequency of 50 hertz ± 10 percent or 60 hertz ± 10 percent. Such an embodiment offers the advantage that diverse connection options for the device can be implemented, enabling flexible use of the device that can be adapted to specific requirements.

[0015] Furthermore, at least one of the housings can have coolant connections through which a coolant can be conveyed to cool the device via at least one of the device positions. Such an embodiment offers the advantage that simple and reliable cooling of the functional units can be achieved.

[0016] The housings can also be mechanically connected or joined to one another in their stacked state, in particular by screwing or bolting. Such an embodiment offers the advantage that, on the one hand, the device can be robustly designed as a single unit and stably installed in the vehicle, and on the other hand, the device can be easily adapted by changing its position.

[0017] Furthermore, the housings can be made of metal, particularly aluminum. Specifically, the housings can be designed as cast aluminum housings. Such an embodiment offers the advantage of providing a robust housing while also saving weight.

[0018] In particular, each of the housings can be shaped to hermetically seal the respective functional units, with the exception of connections. Such an embodiment offers the advantage that the functional units can be arranged within the housings in a way that protects them from environmental influences.

[0019] An electric vehicle will also be presented, which has the following features: a vehicle battery; at least one electrical appliance; and an embodiment of a device mentioned herein, wherein the device is electrically connected to the vehicle battery and to the at least one electrical consumer.

[0020] In conjunction with an electric vehicle, an embodiment of the device mentioned herein can be advantageously employed or used to provide electrical power, in particular to function as a power conversion unit for the electric vehicle.

[0021] The invention is explained in more detail with reference to the accompanying drawings. These show: Fig. 1 a schematic representation of an embodiment of an electric vehicle with a device for providing electrical power to the electric vehicle; Fig. 2 a schematic representation of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 3 a schematic representation of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 4 a schematic representation of an exemplary embodiment of a further device position for the device made of Fig. 3; Fig. 5 a schematic representation of an exemplary embodiment of a further device position for the device made of Fig. 3; Fig. 6 a schematic representation of the first device position of the device made of Fig. 3; Fig. 7 a schematic representation of the second device position of the device made of Fig. 3; Fig. 8 a schematic representation of the further position of the device Fig. 3; Fig. 9 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 10 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 11 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 12 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 13 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 14 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 15 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 16 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; Fig. 17 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle; and Fig. 18 a schematic block diagram of an embodiment of a device for providing electrical power to an electric vehicle.

[0022] In the following description of preferred embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various figures and having a similar effect, without repeating these elements.

[0023] Fig. Figure 1 shows a schematic representation of an embodiment of an electric vehicle 100 with a device 110 for providing electrical power to the electric vehicle 100. The electric vehicle 100 comprises a vehicle battery 102, at least one electrical load 104, and the device 110 for providing the power. The device 110 is electrically connected to the vehicle battery 102 and to the at least one electrical load 104.

[0024] The device 110 comprises a first device position 120 and at least one further device position 140. The first device position 120 comprises a first housing 122 and at least one first electronic functional unit 124 for a first function of the device 110, wherein the at least one first electronic functional unit 124 is received or arranged in the first housing 122. The at least one further device position 140 comprises a further housing 142 and at least one further electronic functional unit 144 for a further function different from the first function, wherein the at least one further electronic functional unit 144 is received or arranged in the further housing 142.

[0025] At least one of the device positions 120, 140 includes a supply connection 150. The device 110 is electrically connected to the vehicle battery 102 of the electric vehicle 100 via the supply connection 150. Furthermore, at least one of the device positions 120, 140 includes an output connection 160. The device 110 is electrically connected to the electrical consumer 104 of the electric vehicle 100 via the output connection 160. According to the Fig. The embodiment shown in Figure 1 includes, by way of example, the first device position 120 a supply connection 150 and an output connection 160, and the further device position 140 includes a supply connection 150 and an output connection 160.

[0026] The first housing 122 of the first device position 120 and the further housing 142 of the further device position 140 are stacked on top of each other and connected to one another. In the stacked state of the housings 122, 142 of the device positions 120, 140, the main extension planes of the electronic functional units 124, 144 are arranged or aligned parallel to each other. In particular, the housings 122, 142 are at least mechanically connected to one another in the stacked state, in particular by screws. For example, the housings 122, 142 are made of metal, in particular aluminum. By way of example, the housings 122, 142 are designed as cast aluminum housings. Except for the respective connections 150, 160 or the areas encompassing them, the housings 122, 142 are designed to hermetically seal their respective functional units 124, 144.According to one embodiment, at least one of the housings 122, 142 further has coolant connections, wherein the same are located in . Fig. Figure 1 is not shown for reasons of space. A coolant can be conveyed via the coolant connections to cool the device 110 through at least one of the device positions 120, 140. The coolant connections will be discussed in more detail with reference to the figures described below.

[0027] Depending on the application scenario, the functional units 124, 144 include at least one rectifier, at least one inverter, at least one DC voltage converter, at least one boost converter, at least one buck converter, at least one switching device, at least one control device, at least one filter, at least one galvanic isolation device, at least one insulation monitoring unit, at least one charging device and / or at least one grid feed-in device.Furthermore, depending on the application scenario, at least one of the device positions 120, 140 includes an output connection 160 designed as a motor connection for electrically connecting the device 110 to an electric motor of the electric vehicle 100, at least one output connection 160 for providing DC voltage, at least one output connection 160 for providing AC voltage, at least one mains connection for electrically connecting the device 110 to an internal vehicle micronetwork, at least one further supply connection for electrically connecting the device to an external source of electrical power or an internal vehicle fuel cell and / or at least one network connection for connecting the device 110 to an internal vehicle communication network.

[0028] According to one embodiment, the device 110 also comprises a second device position 130 with at least one second electronic functional unit 134 for a second function, which differs from the first function of the first functional unit 124 and the further function of the second functional unit 144. The at least one second functional unit 134 is here accommodated or arranged in the first housing 122 of the first device position 120. In particular, the first functional unit comprises an inverter and / or a rectifier, and the second functional unit comprises a DC-DC converter, or vice versa.

[0029] Device 110 can also be referred to as a power distribution unit or multifunctional power distribution unit or current distribution unit. Device 110 is designed as a modular unit or modular system. Device positions 120, 140 and optionally 130, or their functional units 124, 144 and optionally 134, can function as modules.

[0030] This simplifies adaptation to different customer needs, as different units can be combined in a single device. Functional units 124, 144, and optionally 134, for example, include AC / DC converters or inverters and / or rectifiers, solely for electric motor operation, where galvanic isolation is not required, and DC / DC converters, particularly for high-voltage applications, or DC / DC high-voltage converters – as boost converters and / or buck converters. The entire device 110 unit comprises only the components necessary to provide the functions required for a specific application.In particular, different connections can provide just five examples of the following functions: AC / DC converter for electric motor operation with or without frequency converter; DC voltage converter with or without galvanic isolation; microgrid 400 / 230 volts AC / 50 hertz / 60 hertz; charging via 400 volts AC / 50 hertz; and energy feedback into the grid, 400 volts AC / 50 hertz, active front end or regulated grid rectifier.

[0031] Fig. Figure 2 shows a schematic representation of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or is similar to the device shown in Figure 2. Fig. 1. The first device position 120, combined with the second device position 130, and the further device position 140 are shown. The device 110 has coolant connections 270, one input and one output each for the first device position 120 and for the further device position 140. Furthermore, the device 110 includes, by way of example only, a network connection 280 for connecting the device 110 to an in-vehicle communication network, an input / output connection 250 for DC voltage, an input connection 255 for AC voltage, an output connection 160 for AC voltage, and a mains connection 290 for electrically connecting the device 110 to an in-vehicle micronetwork.

[0032] Fig. Figure 3 shows a schematic representation of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or is similar to the device shown in Figure 3. Fig. 1 and / or Fig. 2.

[0033] The first device position 120, combined with the second device position 130, and the further device position 140 are shown. The device 110 has coolant connections 270, one inlet and one outlet each for the first device position 120 and for the further device position 140. The device 110 in Fig. 3 corresponds here to the device from Fig. 2 except that the connections are arranged differently, two network connections 280 are provided, the input connection 255 for alternating current is designed as a charging connection and the output connection 160 is designed as a motor connection for electrically connecting the device 110 to an electric motor of the electric vehicle.

[0034] The device 110 according to the in Fig. 2 and / or Fig. 3. This embodiment can also be described as a multifunctional, modular power distribution unit or current distribution unit. Exemplary dimensions of the device 110 can be 720 x 520 x 300 millimeters. The weight of the device 110 can be, for example, approximately 50 kilograms. For example, the first device layer 120 can have a DC / DC converter, particularly for high-voltage applications, or a DC / DC-HV / HV converter as a functional unit; the second device layer 130 can have an AC / DC converter or an inverter and / or rectifier as a functional unit; and the further device layer 140 can have a filter as a functional unit.

[0035] Fig. Figure 4 shows a schematic representation of an embodiment of a further device position 140 for the device made of Fig. 3. The further device position 140 shown here is in place of the one shown in Fig. The device can be used in the further device position shown in Figure 3. The further device position 140 includes coolant connections 270, an output connection 160 for AC voltage, a network connection 280, and a supply connection 150 for DC voltage. The further device position 140 shown here functions at least as an inverter.

[0036] Fig. Figure 5 shows a schematic representation of an exemplary embodiment of a further device position for the device made of Fig. 3. The further device position 140 shown here is in place of the one shown in Fig. The device can be used in the further device position shown in Figure 3. The further device position 140 includes coolant connections 270, an output connection 160 for DC voltage, a network connection 280, and a supply connection 150 for DC voltage. The further device position 140 shown here functions at least as a DC-DC converter.

[0037] Fig. Figure 6 shows a schematic representation of the first device position 120 of the device. Fig. 3. More precisely, in Fig. Figure 6 shows an internal layout concept of the first device layer 120. By way of example only, the first device layer 120 includes as the first functional unit 124 a DC isolation device, as an additional first functional unit 624 a control unit, a DC connection device 625, the DC input / output connection 250 or an isolated DC IN / OUT connection, the cooling connections 270 and the network connection 280 or CAN connection.

[0038] Fig. Figure 7 shows a schematic representation of the second device position 130 of the device. Fig. 3. More precisely, in Fig. Figure 7 shows an internal layout concept of the second device layer 130. By way of example only, the second device layer 130 includes an inverter as the second functional unit 134, and additional second functional units 734, 735, 736 and 737: a DC capacitor, an EMC filter, an electric motor relay and a microgrid relay, the cooling connections 270 and the output connection 160 designed as a motor connection.

[0039] Fig. Figure 8 shows a schematic representation of the further device position 140 of the device. Fig. 3. More precisely, in Fig. Figure 8 shows an internal layout concept of the further device position 140. By way of example only, the further device position 140 includes a passive filter as a further functional unit 144, an AC charging relay and a microgrid relay as additional further functional units 844 and 845, the cooling connections 270, the input connection 255 designed as a charging connection for AC voltage and the mains connection 290.

[0040] The following described Fig. Figures 9 to 14 show schematic block diagrams of exemplary embodiments of a device 110 for providing electrical power to an electric vehicle as concepts without galvanic isolation.

[0041] Fig. Figure 9 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or resembles a device from one of the figures described above. For illustrative purposes, the vehicle battery 102 is also shown. The following functions can be provided by the electronic functional units of the device layers of the device 110: inverter and / or rectifier, in particular for motor drive; DC / DC converter, more precisely DC / DC-HV / LV converter, in particular isolated; microgrid with 400 volts and 50 hertz, in particular as a socket application; and optionally an insulation monitoring unit (IMD, insulation monitor). More precisely, the device 110 comprises, according to the [reference to relevant section], the following: Fig. The embodiment shown in Figure 9 includes, among other things, an inverter 934, a DC / DC converter or DC / DC HV / LV converter 924, a filter 944, and an insulation monitoring unit 912. According to one embodiment, three DC / DC converters or DC / DC HV / LV converters 924 can be provided. Furthermore, the device 110 comprises converters, power converters, switches, and other components. The elements of the device 110 are interconnected in a manner that is readily apparent to a person skilled in the art.

[0042] Fig. Figure 10 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or is similar to a device from one of the figures described above. The vehicle battery 102 is also shown for illustrative purposes. The following functions can be provided by the electronic functional units of the device layers of the device 110: inverter and / or rectifier, in particular for motor drive; DC / DC converter, more precisely DC / DC HV / LV converter, in particular insulated; microgrid with 400 volts and 50 hertz, in particular as a socket application; AC charging; and DC charging. Optionally, the device 110 can be electrically connected to a fuel cell 1006 via a boost converter 1014 and an additional supply connection. Similar to the device from Fig. In the embodiment shown here, the device 110 also includes an insulation monitoring unit 912 and, by way of example, two filters 944. According to the embodiment shown here, the device 110 also includes a plurality of output connections 160, here for AC voltage with 400 to 600 volts as a motor connection, for AC voltage with 230 volts and 50 hertz, AC voltage with 400 volts and 50 hertz, and DC voltage with 24 volts and 200 amperes, as well as an input connection 255 for AC and DC voltage. A charging control unit 1016 is also part of the device 110 or connected to the device 110. Furthermore, the device 110 has converters, power converters, switches, and other components, as shown in the illustration. The elements of the device 110 are interconnected in a manner that is readily apparent to a person skilled in the art.

[0043] Fig. Figure 11 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or resembles a device from one of the figures described above. The device 110 and the representation in Fig. 11 correspond to the device and representation from Fig. 10 with the exception of details of the electrical wiring, as can be seen from the illustration. Furthermore, only one filter 944 is provided.

[0044] Fig. Figure 12 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or is similar to a device from one of the figures described above. For illustrative purposes, the vehicle battery 102 is also shown. The following functions can be provided by the electronic functional units of the device layers of the device 110: DC-DC converter, more precisely DC / DC-HV / LV converter, in particular insulated; microgrid with 400 volts and 50 hertz, in particular as a socket application; AC charging; DC charging; and operating functions with 400 volts AC and 50 hertz, in particular for on / off motors. Optionally, the device 110 can be electrically connected to a fuel cell 1006 via a boost converter 1014 and an additional supply connection. Similar to the device from Fig. 9, Fig. 10 and / or Fig. The device 110 also includes an insulation monitoring unit 912 and, by way of example, two filters 944. According to the embodiment shown here, the device 110 also includes a plurality of output connections 160, here for AC voltage with 400 to 600 volts as a motor connection, for AC voltage with 230 volts and 50 hertz, for AC voltage with 400 volts and 50 hertz, and for DC voltage with 24 volts and 200 amperes, as well as an input connection 255 for AC and DC voltage. A charging control unit 1016 is also part of the device 110 or connected to the device 110. Furthermore, the device 110 has converters, power converters, switches, and other components, as shown in the illustration. The elements of the device 110 are interconnected in a manner that is readily apparent to a person skilled in the art.

[0045] Fig. Figure 13 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or resembles a device from one of the figures described above. For illustrative purposes, the vehicle battery 102 is also shown. The following functions can be provided by the electronic functional units of the device layers of the device 110: DC-DC converter, more precisely DC / DC-HV / LV converter, in particular insulated; microgrid with 400 volts and 50 hertz, in particular as a socket application; AC charging; DC charging; operating functions with 400 volts AC and 50 hertz, in particular for on / off motors; and inverter or AC / DC converter for dynamic motor control.Optionally, the device 110 can be electrically connected to a fuel cell 1006 via a boost converter 1014 and an additional power supply connection. Similar to the device from [reference missing]. Fig. 9, Fig. 10, Fig. 11 and / or Fig. 12 The device 110 also includes an insulation monitoring unit 912 and, by way of example only, a filter 944.

[0046] According to the embodiment shown here, the device 110 also includes a plurality of output connections 160, here for AC voltage of 400 to 600 volts as a motor connection, for AC voltage of 230 volts and 50 hertz, for AC voltage of 400 volts and 50 hertz, and for DC voltage of 24 volts and 200 amperes, as well as an input connection 255 for AC and DC voltage. A charging control unit 1016 is also part of the device 110 or connected to the device 110. Furthermore, the device 110 includes converters, power converters, switches, and other components, as shown in the illustration. The elements of the device 110 are interconnected in a manner that is readily apparent to a person skilled in the art.

[0047] Fig. Figure 14 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or resembles a device from one of the figures described above. The device 110 and the representation in Fig. 14 correspond to the device and representation from Fig. 12 with the exception of details of the electrical wiring, as can be seen from the illustration. Furthermore, only one filter 944 is provided.

[0048] The following described Fig. Figures 15 to 18 show schematic block diagrams of exemplary embodiments of a device 110 for providing electrical power to an electric vehicle as concepts with galvanic isolation. The device 110 corresponds to or resembles a device from one of the figures described above.

[0049] Fig. Figure 15 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or is similar to a device from one of the figures described above. For illustrative purposes, the vehicle battery 102 is also shown. The following functions can be provided by the electronic functional units of the device layers of the device 110: DC-DC converter, more precisely DC / DC HV / LV converter, in particular insulated; microgrid with 400 volts and 50 hertz, in particular as a socket application; AC charging; DC charging; and inverter or AC / DC converter for dynamic motor control. Optionally, the device 110 can be electrically connected to a fuel cell 1006 via a boost converter 1014 and an additional supply connection. Similar to the device from at least one of the Fig. Figures 9 to 14 show that the device 110 includes, by way of example, two insulation monitoring units 912 and, by way of example, two filters 944. According to the embodiment shown here, the device 110 also includes a plurality of output connections 160, here for AC voltage of 400 to 600 volts as a motor connection, for AC voltage of 230 volts and 50 hertz, for AC voltage of 400 volts and 50 hertz, and for DC voltage of 24 volts and 200 amperes, as well as an input connection 255 for AC and DC voltage. A charging control unit 1016 is also part of the device 110 or connected to the device 110. Furthermore, the device 110 includes converters, power converters, switches, and other components, as shown in the illustration. The elements of the device 110 are interconnected in a manner that is readily apparent to a person skilled in the art.

[0050] Fig. Figure 16 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or resembles a device from one of the figures described above. The device 110 and the representation in Fig. 16 correspond to the device and representation from Fig. 15 with the exception of details of the electrical wiring, as can be seen from the illustration. Furthermore, only one filter 944 is provided.

[0051] Fig. Figure 17 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or resembles a device from one of the figures described above. The device 110 and the representation in Fig. 17 correspond to the device and representation from Fig. 15 except that the electronic functional units of the device positions of the device 110 also provide working functions with 400 volts alternating current and 50 hertz, in particular for on / off motors, and except for details of the electrical circuitry, as can be seen from the illustration.

[0052] Fig. Figure 18 shows a schematic block diagram of an embodiment of a device 110 for providing electrical power to an electric vehicle. The device 110 corresponds to or resembles a device from one of the figures described above. The device 110 and the representation in Fig. 18 correspond to the device and representation from Fig. 16 with the exception of details of the electrical wiring, as can be seen from the illustration. Furthermore, only one filter 944 is provided.

[0053] Furthermore, the process steps according to the invention can be repeated and carried out in a different order than described.

[0054] If an embodiment includes an “and / or” connection between a first feature and a second feature, this can be interpreted as meaning that the embodiment according to one embodiment has both the first feature and the second feature, and according to another embodiment either only the first feature or only the second feature. Reference sign 100 electric vehicles 102 Vehicle battery 104 electrical consumers 110 Device for providing electrical power 120 first fixture position 122 first case 124 first electronic functional unit 130 second device position 134 second electronic functional unit 140 additional device positions 142 more cases 144 additional electronic functional units 150 supply connection 160 output port 250 DC input / output connector 255 Input terminal for AC and / or DC voltage 270 Coolant connection 280 network connection 290 network connection 624 additional first electronic functional unit 625 Connection device 734 additional second electronic functional unit 735 additional second electronic functional unit 736 additional second electronic functional unit 737 additional second electronic functional unit 844 additional electronic functional units 845 additional electronic functional units 912 Insulation monitoring unit 924 DC / DC converters 934 inverters 944 filters 1006 Fuel cell 1014 Upward converters 1016 Charging control unit

Claims

[1] Device (110) for providing electrical power to an electric vehicle (100), wherein the device (110) has the following features: a first device position (120) with a first housing (122) and at least one first electronic functional unit (124) arranged in the first housing (122) for a first function; at least one further device position (140) with a further housing (142) and at least one further electronic functional unit (144) arranged in the further housing (142) for a further function that differs from the first function; and a second device position (130) with at least one second electronic functional unit (134) for a second function, which differs from the first function and the further function differs, wherein the second functional unit (134) is arranged in the first housing (122), wherein at least one of the device positions (120, 140) has a supply connection (150) for electrically connecting the device (110) to a vehicle battery (102) of the electric vehicle (100), wherein at least one of the device positions (120, 130) has an output connection (160) for electrically connecting the device (110) to an electrical consumer (104), wherein the first housing (122) and the further housing (142) are stacked on top of each other and can be connected or joined together, wherein in a stacked state of the housings (122, 142) the main extension planes of the functional units (124, 134, 144) are arranged parallel to each other, wherein the second functional unit (134) has a DC voltage converter and the first functional unit (124) has an inverter and / or a rectifier. [2] Device (110) according to claim 1, characterized by, that the functional units (124, 134, 144) include at least one rectifier, at least one inverter (934), at least one DC-DC converter (924), at least one boost converter (1014), at least one buck converter, at least one switching device, at least one control device (624), at least one filter (944), at least one galvanic isolation device, at least one insulation monitoring unit (912), at least one charging device and / or at least one grid feed-in device. [3] Device (110) according to any one of the preceding claims, characterized by, that at least one of the device positions (120, 130, 140) has an output connection (160) designed as a motor connection for electrically connecting the device (110) to an electric motor of the electric vehicle (100), at least one output connection (160; 250) for providing DC voltage, at least one output connection (160) for providing AC voltage, at least one mains connection (290) for electrically connecting the device (110) to an internal vehicle micronetwork, at least one further supply connection (250, 255) for electrically connecting the device (110) to an external vehicle source of electrical power or an internal vehicle fuel cell (1006) and / or at least one network connection (280) for connecting the device (110) to an internal vehicle communication network. [4] Device (110) according to any one of the preceding claims, characterized by, that at least one of the housings (122, 142) has coolant connections (270) through which a coolant can be conveyed for cooling the device (110) through at least one of the device positions (120, 130, 140). [5] Device (110) according to any one of the preceding claims, characterized by , that the housings (122, 142) are mechanically connectable or joined together in the stacked state. [6] Device (110) according to any one of the preceding claims, characterized by , that the housings (122, 142) can be screwed or bolted together in the stacked state. [7] Device (110) according to any one of the preceding claims, characterized by , that the cases (122, 142) are made of metal. [8] Device (110) according to any one of the preceding claims, characterized by, that the housings (122, 142) are formed from aluminium, wherein the housings (122, 142) are designed as aluminium casting housings. [9] Device (110) according to any one of the preceding claims, characterized by , that each of the housings (122, 142) is shaped to hermetically seal the respective functional units (124, 134, 144) except for connections. [10] Electric vehicle (100) having the following features: a vehicle battery (102); at least one electrical consumer (104); and a device (110) according to one of the preceding claims, wherein the device (110) is electrically connected to the vehicle battery (102) and to the at least one electrical consumer (104).

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