Device for assisting a motor vehicle battery in starting the motor vehicle and method for operating it

Abstract

Device (1) as a jump-start device to assist a battery (2) of a motor vehicle when starting the motor vehicle, with a supply unit (3) for supplying the device (1) with electrical energy, and with at least one output interface (4) which can be connected to the motor vehicle to provide electrical energy, wherein the supply unit (3) is electrically connected to the at least one output interface (4), characterized by that the supply unit (3) includes at least one intake section (5) and at least one supply interface (6), so that in the intended use of the device (1) at least one energy storage device (7) can be detachably received by means of the at least one receiving section (5) and can be electrically connected to the supply unit (3) for the provision of electrical energy by means of the at least one supply interface (6).

Description

[0001] The present invention relates to a device for assisting a motor vehicle battery during starting the motor vehicle, comprising a power supply unit for supplying the device with electrical energy, and at least one output interface that can be connected to the motor vehicle for providing the electrical energy. The power supply unit is electrically connected to the at least one output interface. The invention further relates to a method for operating the device.

[0002] Devices for assisting a starter battery when starting a motor vehicle are well-known in the prior art. For example, a corresponding jump-start device is disclosed in US Patent 2006 / 0244412 A1. A disadvantage of these devices is that the internal battery of the jump-start device may be discharged and / or defective when the device is to be used. Replacing the internal battery is usually not possible and / or not economically viable. Therefore, when the internal battery is defective, the entire device is often discarded, which complicates recycling and / or unnecessarily burdens the environment.

[0003] From DE 10 2018 219 836 A1 a docking station for a vehicle is known, which has a housing, at least one receptacle formed in the housing for inserting an accumulator, a contact means provided on the housing and arranged within the at least one receptacle for electrically contacting an accumulator inserted into the receptacle.

[0004] From DE 10 2019 100 251 A1 a transportable charging station for charging at least one electrical energy storage device of a motor vehicle is known, which includes an electrical energy storage device which is housed in a casing and which can be connected to the at least one electrical energy storage device for charging.

[0005] The object of the present invention is to eliminate the disadvantages known from the prior art.

[0006] The problem is solved by a device for assisting the battery when starting the motor vehicle and by a method for operating a device with the features of the independent patent claims.

[0007] A device is proposed to assist a motor vehicle battery in starting the vehicle. The battery in this context can be understood as the vehicle's starter battery, car battery, or vehicle battery. This battery is usually an accumulator that, for example, provides the electrical energy to start the vehicle. The device can be referred to as a charging device, vehicle charging device, jump-start device, and / or vehicle jump-starting device. Additionally, the device can be designed to charge the vehicle's battery.

[0008] The device comprises a power supply unit for providing the device with electrical energy and at least one output interface that can be connected to the motor vehicle, in particular to the vehicle's battery, for supplying the electrical energy. The power supply unit is electrically connected to the at least one output interface. This allows the power supply unit to provide the at least one output interface with electrical energy. The energy provided by the power supply unit can thus be used to charge and / or maintain the battery.

[0009] Both charging and battery support preferably utilize a constant electrical voltage. This voltage can be determined, for example, by the battery being charged and / or supported. The so-called charging voltage, i.e., the voltage that should be applied when charging the battery, varies depending on the type of battery, but is preferably in the range of 6 V to 25 V. This voltage should also not be exceeded when supporting the battery, for example, when starting the vehicle. When charging the battery, a relatively low current (1 A - 10 A) is supplied from the power supply unit to the output interface over a longer period (usually several hours). When supporting the battery, on the other hand, a high current (at least 100 A) is supplied from the power supply unit to the output interface over a short period (usually a few seconds).

[0010] According to the invention, the supply unit comprises at least one receiving section and at least one supply interface, so that in the intended use of the device at least one energy storage device can be detachably received by means of the at least one receiving section and / or electrically connected to the supply unit for the provision of electrical energy by means of the at least one supply interface.

[0011] This makes it possible for energy storage devices designed for mobile use to be integrated into the device and / or provide the necessary electrical energy for charging and / or supporting the battery. It is conceivable that, during normal use of the device, only one of the energy storage devices is integrated into the at least one mounting section. Additionally or alternatively, multiple energy storage devices can be integrated and / or connected to the power supply unit, particularly using multiple mounting sections and / or supply interfaces.

[0012] The at least one energy storage device is therefore preferably designed as a mobile and / or interchangeable energy storage device. Such energy storage devices can also be called battery packs. This makes it possible to use the energy storage device with the device according to the invention and also with other devices, for example, garden equipment, tools, and / or cleaning equipment. This ensures maximum flexibility. Thus, the at least one energy storage device can be used for several devices.

[0013] Devices for charging and / or supporting the vehicle's battery are generally used rather infrequently. Because at least one energy storage device can be detached from the main unit, the risk of the energy storage unit no longer holding sufficient electrical energy is reduced compared to devices with permanently installed energy storage. Furthermore, replacing a defective energy storage unit is very simple and inexpensive, as the power supply interface is also designed to be detachable.

[0014] It is advantageous if the at least one supply interface is arranged in the area of ​​the at least one receiving section. The at least one energy storage device can be mechanically connected to the device, in particular the supply section, using the at least one receiving section. The at least one energy storage device can also be electrically connected to the device, in particular the supply section, using the at least one supply interface. If the at least one supply interface is arranged in the area of ​​the at least one receiving section, the at least one energy storage device can be mechanically and electrically connected to the device, in particular the supply section, both simultaneously.

[0015] It is also advantageous if the device includes at least one network interface for a mains power source, wherein the network interface is preferably configured as an AC interface and / or the supply interface is preferably configured as a DC interface. The mains power source preferably provides an AC current with a voltage of 230 V, 220 V, 110 V, or 100 V. The supply interface or energy storage device, as a DC source, preferably provides a DC current with a voltage, in particular a nominal voltage, of at least 10 V, preferably at least 18 V. The maximum voltage of the DC source can depend on the number of energy storage devices used.

[0016] It is also advantageous if the device includes at least one electrical circuit that preferably electrically connects the supply interface, the network interface and / or the output interface.

[0017] It is also advantageous if the electrical circuit includes at least one electrical conductor. Preferably, a first electrical conductor of the electrical circuit connects the at least one supply interface to the at least one mains interface, so that the at least one energy storage device can be charged using the mains power source. Additionally or alternatively, a second electrical conductor of the electrical circuit connects the at least one supply interface to the at least one output interface, so that the vehicle battery can be charged and / or supported using the at least one energy storage device. Additionally or alternatively, a third electrical conductor of the electrical circuit connects the at least one mains interface to the output interface, so that the vehicle battery can be charged and / or supported using the at least one mains power source.Thus, in addition to charging and / or supporting the vehicle's battery, the device can also be used as a charging device for at least one energy storage device.

[0018] It is also advantageous if the electrical circuit includes at least one switching element with which the at least one electrical conductor can be disconnected. This allows switching between different operating modes, i.e., charging the at least one energy storage device, charging or supporting the battery by the at least one energy storage device, and / or charging or supporting the battery by the mains power source.

[0019] It is also advantageous if the device has at least one power supply, wherein the at least one power supply is preferably arranged in the area of ​​the network interface, the first electrical conductor and / or the third electrical conductor, so that an alternating voltage from the mains power source can be converted into a direct voltage for the at least one energy storage device and / or for the battery.

[0020] Advantages arise if the device includes at least one voltage converter, wherein the at least one voltage converter, in particular a DC-DC converter, is arranged in the area of ​​the output interface, the at least one supply interface, and / or the second electrical conductor, so that the DC voltage of the at least one energy storage device can be converted, and in particular reduced, into the DC voltage for the battery. As already described above, the permissible charging voltage of batteries is limited. Energy storage devices often have voltages that are higher than this permissible charging voltage. For example, common energy storage devices used in garden equipment, tools, and / or cleaning equipment often have a voltage, in particular a nominal voltage, of 10 V to 21 V and / or up to 42 V.If several of these energy storage devices are connected in series, even higher voltages can be present at the supply interface. Using a voltage converter, this voltage can be adjusted, and in particular reduced, so that the maximum permissible charging voltage of the battery, which is, for example, 14.8 V or 14.6 V, is not exceeded.

[0021] It is also advantageous if the electrical circuit includes an actuating device for adjusting the device between a charging position and a starting aid position, wherein the actuating device is preferably arranged in the area of ​​the second electrical conductor and / or the third electrical conductor.

[0022] It is also advantageous if the actuator includes at least one capacitor and / or a fourth electrical conductor, wherein, in the starting aid position, the capacitor and / or in the charging position, the fourth electrical conductor is electrically connected to the at least one output interface. The at least one capacitor is preferably designed as a supercapacitor. With the aid of the at least one capacitor, the necessary current for supporting the battery, particularly when starting the vehicle's engine, can be achieved. Additionally or alternatively, however, it is conceivable that the current provided by the at least one energy storage device is sufficient to support the battery.

[0023] It is also advantageous if the device comprises multiple receiving sections, multiple supply interfaces, and / or at least one control unit, wherein the control unit can preferably detect and / or control the capacity and / or energy input of multiple energy storage devices. The multiple receiving sections and / or multiple supply interfaces allow the device to accommodate multiple energy storage devices. This makes it possible to provide a higher energy output to the power supply unit. If the multiple energy storage devices have different capacities, the at least one control unit can connect the energy storage devices in such a way that the electrical energy is discharged evenly and / or completely from the energy storage devices, thus charging and / or supporting the battery.

[0024] It is also advantageous if the device includes at least one measuring device, one display unit, one input unit, and / or one processing unit. The measuring device can detect or record the battery's condition. It is also conceivable that the measuring device detects or records the battery type and / or nominal voltage. Additionally or alternatively, the at least one measuring device and / or the processing unit can determine the maximum and / or optimal charging current for the battery. The display unit can be designed as an acoustic and / or optical display unit. This allows the display unit to show the operating mode, position, and / or battery condition to the device operator. The input unit can be designed as an acoustic and / or optical input unit. Using the input unit, the operator can adjust the operating mode and / or position of the device.It is also conceivable that the operator can change the applied mains voltage using at least one input unit. This is advantageous, for example, when operating in different countries. The processing unit can be electrically connected to at least one measuring device, at least one display unit, at least one input unit, at least one power supply, at least one voltage converter, the electrical circuit, and / or the actuating device.

[0025] The display unit preferably comprises at least one light, a display, and / or a loudspeaker. The input unit preferably comprises at least one microphone, an input screen, an input interface, and / or an input switch. It is also conceivable that the display unit and the input unit are configured as a communication unit for the operator and / or as a communication interface, in particular a radio interface.

[0026] It is also advantageous if the device comprises at least one housing. Preferably, the housing is designed as a case. Additionally or alternatively, the housing comprises two half-shells connected by at least one hinge and / or a handle. The device can be designed as a portable device. If the device is designed as a case, this facilitates transport.

[0027] Furthermore, it is advantageous if the housing includes at least one receiving section and / or the receiving section is arranged on the housing.

[0028] It also offers advantages if the at least one power supply unit, the at least one recording section, the at least one power supply interface, the at least one electrical circuit, the at least one power supply unit, the at least one voltage converter, the at least one actuating device, the at least one control unit, the at least one measuring device, and / or the at least one computing unit are arranged in an interior space of the housing, in particular in the interior space of at least one of the half-shells. This allows these components and / or the at least one energy storage device to be protected from external influences during the intended use of the device.

[0029] It is also advantageous if the at least one network interface, the at least one output interface, the display unit and / or the input unit are arranged on an outer surface of the housing, in particular on the outer surface of at least one of the half-shells. This way, the at least one network interface, the at least one output interface, the display unit and / or the input unit are accessible from the outside even when the device or case is closed.

[0030] Furthermore, it is advantageous if the device comprises at least one energy storage device, wherein the at least one energy storage device preferably comprises a connecting section designed to correspond to the receiving section. Preferably, in its intended use, particularly for starting assistance, the device comprises several energy storage devices.

[0031] It is also advantageous if the at least one receiving section of the supply unit and / or the connecting section of the at least one energy storage device comprises at least one, in particular movable, locking lug, a locking opening and / or a guide contour. This allows the at least one energy storage device to be connected to the receiving section in a way that is both displaceable and detachable.

[0032] It is also advantageous if the at least one energy storage device comprises a control circuit, an electrical energy cell, an electronic interface, and / or an energy storage housing. In its intended use, the control circuit of the at least one energy storage device can communicate with the device's control system, particularly via the power supply interface. For this purpose, the at least one energy storage device additionally or alternatively has the electronic interface. This allows the control system to regulate the device in such a way that the at least one energy storage device is discharged as completely and / or gently as possible. Additionally or alternatively, the electronic interface of the energy storage device is electrically connected to the power supply interface of the power supply unit when the device is in the recording section. This allows electrical energy to be transferred from the energy storage device to the device.

[0033] Furthermore, a method is described for operating a device that assists a motor vehicle's battery during starting, in which electrical energy is provided to the motor vehicle connected to an output interface of the device by a power supply unit. Additionally, the method can charge the motor vehicle's battery, in particular the starter battery. According to the invention, at least one energy storage device is detachably attached to the power supply unit and electrically connected, so that the motor vehicle, in particular its battery, can be supplied with the electrical energy from the at least one energy storage device.

[0034] Preferably, the device is designed according to the preceding description, wherein the mentioned features, in particular the mentioned process features, can be present individually or in any combination.

[0035] Further advantages of the invention are described in the following exemplary embodiments. These show: Fig. 1 a schematic perspective representation of a device according to an exemplary embodiment, and Fig. 2 a schematic block representation of a device according to an alternative embodiment

[0036] In the following description of the figures, the same reference symbols are used for features that are identical and / or at least comparable in the various figures. The individual features, their design, and / or mode of action are usually only explained in detail upon their first mention. If individual features are not explained again in detail, their design and / or mode of action corresponds to the design and mode of action of the already described features with the same or identical effect.

[0037] Fig. Figure 1 shows a schematic perspective view of a device 1 according to an exemplary embodiment. The device 1 is designed for charging a motor vehicle battery 2 and / or for assisting the battery 2 in starting the motor vehicle. The device 1 comprises at least one power supply unit 3 for supplying the device 1 with electrical energy and an output interface 4 for supplying the electrical energy to the battery 2. The device 1 can thus be configured as a charging device, battery charging device, and / or starter battery charging device, wherein the supplied electrical energy is used to charge the motor vehicle battery 2. Additionally or alternatively, the device 1 can be configured as a jump-start device and / or motor vehicle jump-start device, wherein it can assist the battery 2 in starting the motor vehicle.For both charging and starting assistance, the at least one battery 2 is electrically connected to the at least one output interface 4 during normal use of the device 1. Additionally or alternatively, the device 1 can be used as a charging device and / or energy storage charging device for at least one energy storage device 7 housed in the power supply unit 3. In this case, the battery 2 does not need to be connected to the at least one output interface 4 during normal use of the device 1.

[0038] The power supply unit 3 has at least one receiving section 5 and at least one power supply interface 6. At least one of the energy storage devices 7 can be detachably received using the at least one receiving section 5. Preferably, the at least one receiving section 5 is configured to correspond with at least one connecting section 38 of the at least one energy storage device 7. The at least one energy storage device 7 can be electrically connected to the power supply unit 3 using the at least one power supply interface 6. When the at least one energy storage device 7 is received, the at least one power supply interface 6 is preferably electrically connected to at least one corresponding electronic interface 35 of the energy storage device 7. In this way, the at least one battery 2 of the motor vehicle can be supplied with the electrical energy from the at least one energy storage device 7.

[0039] The at least one energy storage device 7 comprises, in the exemplary embodiment, the Fig. 1 at least one control circuit 34, at least one electrical energy cell 36, and / or at least one energy storage housing 37. An electrical energy cell 36 can be, for example, a battery cell, in particular a lithium-ion battery cell. A control circuit 34 can be, among other things, a so-called battery management system (BMS). The at least one control circuit 34 can be configured such that the at least one electrical energy cell 36 is gently discharged during the intended use of the energy storage device 7 and / or a predetermined amount of electrical energy always remains in the at least one electrical energy cell 36. This prevents deep discharge. The at least one control circuit 34 can also balance and / or synchronize several electrical energy cells 36 of the energy storage device 7.

[0040] The at least one connecting section 38 is arranged on the at least one energy storage housing 37. This allows the at least one energy storage device 7 to be detachably and / or securely connected to the receiving section 5 of the power supply unit 3 via the at least one energy storage housing 37. For detachable and / or securely connecting the at least one receiving section 5 to the at least one connecting section 38, these sections have at least one, in particular movable, locking lug 31, at least one locking opening 32, and / or at least one guide contour 33. In the illustrated embodiment, the connecting section 38 has the locking lug 31 and one of the guide contours 33. In the illustrated embodiment, the at least one receiving section 5 has the locking opening 32 and also one of the guide contours 33.It is also conceivable that the connecting section 38 includes at least one locking opening 32 and / or that the at least one receiving section 5 includes at least one locking lug 31.

[0041] The exemplary embodiment of the Fig. Figure 1 shows, purely as an example, the supply unit 3 with two receiving sections 5. It is equally conceivable that the supply unit 3 has only one receiving section 5 or more than two receiving sections 5. Furthermore, in the exemplary embodiment of the Fig. Figure 1 shows only one of the energy storage devices 7. However, due to its two receiving sections 5, the device 1 can accommodate a maximum of two energy storage devices 7. Nevertheless, the device 1 can accommodate multiple energy storage devices 7 by using a plurality of receiving sections 5. Furthermore, it is conceivable that the device 1, in its intended use, can be operated with a specific number of receiving sections 5 and a different number of energy storage devices 7. For example, it is conceivable that a device 1 with four receiving sections 5 could be operated with two or three energy storage devices 7. To regulate and / or control this, the device in the illustrated embodiment preferably includes a control unit 20. For example, it is conceivable that the control unit 20 could discharge all energy storage devices 7 evenly and / or, particularly in the case of different capacities, differently.

[0042] To supply electrical energy from a mains power source 9, the device 1 preferably comprises at least one mains interface 8. The at least one mains interface 8 is preferably arranged in the area of ​​the power supply unit 3. The at least one power supply interface 6, the at least one mains interface 8, and / or the output interface 4 are electrically interconnected by means of at least one electrical circuit 10. The battery 2 can be charged and / or supplemented by means of the at least one electrical circuit 10, the at least one power supply unit 16, and / or the at least one voltage converter 17. Additionally or alternatively, the at least one energy storage device 7 can be charged by means of the at least one mains interface 8.When charging the at least one energy storage device 7, the alternating voltage of the mains interface 8 can be converted using the at least one power supply unit 16 and / or the at least one voltage converter 17. The electrical circuit 10 and the interaction of the individual electrical components are described in the following description of the exemplary embodiment. Fig. 2 explained in more detail.

[0043] Furthermore, the device 1 of the exemplary embodiment of the Fig. 1. An adjusting device 18 for adjusting the device 1 between a charging position and a jump-start position. In the charging position, the battery 2 can be charged. In the jump-start position, the battery 2 can be assisted when starting the motor vehicle. Furthermore, in the exemplary embodiment of the Fig. Figure 1 shows a measuring device 21, a display unit 22, an input unit 23, and a computing unit 24. The operation of the at least one actuator 18, the at least one controller 20, the at least one measuring device 21, the at least one display unit 22, the at least one input unit 23, and the at least one computing unit 24 is described in the following description of the exemplary embodiment of the Fig. 2 explained in more detail.

[0044] Device 1 of the exemplary embodiment of the Fig. Device 1 has at least one housing 25. The housing 25 protects the components of the device 1 and / or facilitates the transport of the device 1. In the present embodiment, the housing 25 is designed as a case. The housing 25 has at least one hinge 26, at least two half-shells 27, and / or at least one handle 28. The at least two half-shells 27 can be moved or pivoted relative to each other by means of the at least one hinge 26. The case-shaped housing 25, or rather the two half-shells 27, provides an interior 29 and an exterior 30.

[0045] The at least one power supply unit 3, the at least one receiving section 5, the at least one supply interface 6, the at least one electrical circuit 10, the at least one power supply unit 16, the at least one voltage converter 17, the at least one actuating device 18, the at least one control unit 20, the at least one measuring device 21, and / or the at least one computing unit 24 are preferably arranged in the interior 29. Thus, in the intended use of the device 1, the at least one energy storage device 7 arranged in the at least one receiving section 5 is also arranged in the interior 29. This protects these components from external influences, since during transport the interior 29 is usually surrounded by the housing 25, in particular by the two halves 27 of the case.

[0046] On the outer surface 30 of the housing 25, in particular on the outer surface 30 of at least one of the half-shells 27, the at least one network interface 8, the at least one output interface 4, the at least one display unit 22 and / or the at least one input unit 23 are arranged in the illustrated embodiment. Thus, when using the device 1, the interior 29 can remain enclosed by the housing 25 or by the two half-shells 27. The function of the device 1 can therefore be ensured even when the interior 29 is closed.

[0047] Fig. Figure 2 shows a schematic block diagram of a device 1 according to an alternative embodiment. The device 1 is designed to charge the battery 2 of the motor vehicle and / or to assist the battery 2 when starting the motor vehicle. In contrast to the embodiment of the Fig. 1 are in the exemplary embodiment of the Fig. Figure 2 shows three recording sections 5 and three supply interfaces 6 as examples. A different number of recording sections 5, supply interfaces 6, and / or energy storage devices 7 is also conceivable. Since this is a block diagram, the depiction of mechanical components, such as the housing 25, has been omitted. The electrical circuit 10 and the actuating device 18, however, are shown in more detail.

[0048] For example, the electrical circuit 10 and / or the actuating device 18 of the device 1 of the preceding embodiment of the Fig. 1 according to the following description of the Fig. 2. Additionally or alternatively, the device 1 of the exemplary embodiment can be configured as follows: Fig. 2 the housing 25 according to the preceding embodiment of the Fig. 1 include.

[0049] The at least one energy storage device 7 can be brought into electrical contact with the power supply unit 3, in particular with the at least one power supply interface 6, by means of the at least one electronic interface 35. For example, this can be ensured as soon as the at least one connection section 38 is received by the at least one receiving section 5. This is particularly the case if the at least one power supply interface 6 is located in the area of ​​the at least one receiving section 5 and / or the at least one electronic interface 35 is located in the area of ​​the at least one connection section 38.

[0050] As already mentioned above in the example of the Fig. As described in Figure 1, the at least one energy storage device 7 can also comprise at least one control circuit 34 and / or at least one electrical energy cell 36. With the aid of the at least one control circuit 34, for example, a plurality of electrical energy cells 36 can be compared with one another. The device 1 can additionally or alternatively comprise the control unit 20, which, for example, compares a plurality of energy storage devices 7 and / or the at least one electrical energy cell 36 of the multiple energy storage devices 7 with one another. In this way, for example, the load and / or discharge of the individual energy storage devices 7 can be compared with one another and / or controlled in relation to each other. For example, it is conceivable that, with the aid of the control unit 20, all energy storage devices 7 can be discharged uniformly and / or, particularly in the case of different capacities, differently.For this purpose, the control unit 20 of the device 1 can be brought into operative or data communication with the at least one control circuit 34 of the at least one energy storage device 7, in particular via the electronic interface 35 and / or the supply interface 6.

[0051] In the exemplary embodiment, the electrical circuit 10 comprises the Fig. 2 at least one electrical conductor 11, 12, 13, 14. Preferably, the electrical circuit 10 comprises a first electrical conductor 11, a second electrical conductor 12 and / or a third electrical conductor 13. The first electrical conductor 11 of the electrical circuit 10 connects the at least one supply interface 6 to the at least one network interface 8.

[0052] The first electrical conductor 11 allows the at least one energy storage device 7 to be charged using the mains power source 9. The second electrical conductor 12 of the electrical circuit 10 connects the at least one supply interface 6 to the at least one output interface 4. Thus, the second electrical conductor 12 allows the vehicle battery 2 to be charged and / or supplemented using the at least one energy storage device 7. The third electrical conductor 13 of the electrical circuit 10 connects the at least one mains interface 8 to the output interface 4. Thus, the vehicle battery 2 can be charged and / or supplemented using the third electrical conductor 13 and the at least one mains power source 9.

[0053] Additionally or alternatively, the electrical circuit 10 comprises at least one switching element 15 by means of which the at least one electrical conductor 11, 12, 13, 14 can be connected and / or disconnected. In the illustrated embodiment, the electrical circuit 10 comprises three switching elements 15, with one switching element 15 being assigned to each of the first electrical conductor 11, the second electrical conductor 12, and the third electrical conductor 13. This makes it possible to selectively charge and / or support either the at least one energy storage device 7 using the mains power source 9, the battery 2 using the at least one energy storage device 7, or the battery 2 using the mains power source 9.

[0054] The device 1 in the illustrated embodiment also comprises two power supplies 16, each of which converts the AC voltage of the mains power source 9 into a DC voltage. In the illustrated embodiment, one of the power supplies 16 converts the AC voltage of the mains power source 9 into the DC voltage of the at least one energy storage device 7. The other power supply 16 converts the AC voltage of the mains power source 9 into the DC voltage of the battery 2. In the region of the second electrical conductor 12, the electrical circuit 10 comprises the at least one voltage converter 17. With the aid of the at least one voltage converter 17, the DC voltage of the at least one energy storage device 7 can be converted into the DC voltage of the battery 2.For example, the DC voltage, in particular the nominal voltage, of the energy storage device 7, which is usually in the range between 10 V and 42 V, can be reduced to the DC voltage for the battery 2, which is usually in the range between 6 V and 25 V.

[0055] It is also conceivable that only one power supply 16 is designed such that the AC voltage of the mains power source 9 can be converted into both the DC voltage of the at least one energy storage device 7 and the DC voltage of the battery 2. For example, it is also conceivable that one of the power supplies 16 and the voltage converter 17 are interconnected in such a way that they replace the other power supply 16.

[0056] To adjust the device 1 between the charging position and the jump-start position, the device 1 comprises, particularly in the area of ​​the second electrical conductor 12 and / or the third electrical conductor 13, the adjusting device 18. For this purpose, the adjusting device 18 preferably comprises at least one fourth electrical conductor 14 and / or a capacitor 19. In the illustrated embodiment, the fourth electrical conductor 14 is shown schematically parallel to the capacitor 19. In the charging position, for example, the fourth electrical conductor 14 can connect the output interface 4 to the at least one energy storage device 7 and / or the mains interface 8. This allows the battery 2 to be supplied with a constant charging current in the charging position. In the jump-start position, for example, the at least one capacitor 19 can connect the output interface 4 to the at least one energy storage device 7 and / or the mains interface 8.The at least one capacitor 19 can be charged using the at least one energy storage device 7 and / or the network interface 8. This allows the battery 2 to be supplied with a very high and / or short-term jump-start current during jump-starting. Additionally or alternatively, the control unit 20 can be used as an actuator 18. With a sufficient number of energy storage devices 7 and / or capacity of the at least one energy storage device 7, it is conceivable that the control unit 20 can be used to control the at least one energy storage device 7 for jump-starting and / or connect several energy storage devices 7 together so that the battery 2 can be supplied with the very high and / or short-term jump-start current by the at least one energy storage device 7.

[0057] The device 1 can also include the input unit 23. The input unit 23 can be used, for example, to control the at least one switching element 15 and / or the actuating device 18. Thus, an operator can use the input unit 23 to adjust the device 1 between the charging position and the jump-start position. Additionally or alternatively, the operator can use the input unit 23 to adjust the device 1 such that, optionally, the at least one energy storage device 7 is charged using the mains power source 9, the battery 2 is charged using the at least one energy storage device 7, or the battery 2 is charged using the mains power source 9.

[0058] The display unit 22 can, for example, show the state of the battery 2, which is preferably measured by means of the measuring device 21. Additionally or alternatively, the display unit 22 can show the capacity, state, and / or number of the at least one energy storage device 7. Additionally or alternatively, the display unit 22 can show the position of the actuating device 18 and / or the parameters entered by the input unit 23.

[0059] The device 1 can be controlled and / or regulated by means of the computing unit 24. For example, the computing unit 24 can be operatively connected, in particular via signal communication, to the power supply unit 3, the at least one output interface 4, the at least one supply interface 6, the at least one energy storage device 7, the network interface 8, the electrical circuit 10, the at least one switching element 15, the at least one power supply unit 16, the at least one voltage converter 17, the at least one actuating device 18, the at least one control unit 20, the at least one measuring device 21, the at least one display unit 22, and / or the at least one input unit 23. For example, it is conceivable that the computing unit 24 controls and / or regulates the device 1 in such a way that the battery 2 is charged and / or supported as needed.For example, the computing unit 24 can control and / or regulate the device 1 such that the power supply interface is used to charge and / or support the battery 2 only when the network interface 8 is disconnected. Additionally or alternatively, the computing unit 24 can control and / or regulate the device 1 such that the at least one energy storage device 7 is charged via the network interface 8 when the battery 2 is not being supported and / or does not need to be charged. Reference symbol list 1 Device 2 batteries 3 supply units 4 Output interface 5 Recording section 6 Supply interface 7 Energy storage 8 Network interface 9 Mains power source 10 electrical circuits 11 first electrical conductor 12 second electrical conductor 13 third electrical conductor 14 fourth electrical conductor 15 switching element 16 Power supply 17 voltage converters 18 Actuator 19 Capacitor 20 Control 21 Measuring device 22 Display unit 23 Input unit 24 computing units 25 cases 26 hinge 27 half-shell 28 handle 29 Interior 30 Outside 31 Rastnase 32 Locking opening 33 Leadership contour 34 Control circuit 35 Electronic interface 36 electrical energy cells 37 energy storage housings 38 Connecting section

Claims

Device (1) as a jump-start device for assisting a battery (2) of a motor vehicle when starting the motor vehicle, comprising a power supply unit (3) for supplying the device (1) with electrical energy, and comprising at least one output interface (4) which can be connected to the motor vehicle for providing the electrical energy, wherein the power supply unit (3) is electrically connected to the at least one output interface (4), characterized in that the power supply unit (3) comprises at least one receiving section (5) and at least one supply interface (6), so that in the intended use of the device (1) at least one energy storage device (7) can be detachably received by means of the at least one receiving section (5) and electrically connected to the power supply unit (3) for providing the electrical energy by means of the at least one supply interface (6). Device according to the preceding claim, characterized in that the device (1) comprises at least one network interface (8) for a mains power source (9) and / or at least one electrical circuit (10), wherein the electrical circuit (10) preferably electrically connects the supply interface (6), the network interface (8) and / or the output interface (4). Device according to one of the preceding claims, characterized in that the electrical circuit (10) comprises at least one electrical conductor (11, 12, 13, 14), wherein preferably: - a first electrical conductor (11) of the electrical circuit (10) connects the at least one supply interface (6) to the at least one mains interface (8), so that the at least one energy storage device (7) can be charged using the mains power source (9); - a second electrical conductor (12) of the electrical circuit (10) connects the at least one supply interface (6) to the at least one output interface (4), so that the battery (2) of the motor vehicle can be charged and / or supported using the at least one energy storage device (7); and / or - a third electrical conductor (13) of the electrical circuit (10) connects the at least one mains interface (8) to the output interface (4).so that the battery (2) of the motor vehicle can be charged and / or supported by means of at least one mains power source (9). Device according to one of the preceding claims, characterized in that the electrical circuit (10) comprises at least one switching element (15) with the aid of which the at least one electrical conductor (11, 12, 13, 14) can be disconnected. Device according to one of the preceding claims, characterized in that the device (1) has at least one power supply (16), wherein the at least one power supply (16) is preferably arranged in the area of ​​the network interface (8), the first electrical conductor (11) and / or the third electrical conductor (13), so that an alternating voltage of the mains power source (9) can be converted into a direct voltage for the at least one energy storage device (7) and / or for the battery (2). Device according to one of the preceding claims, characterized in that the device (1) has at least one voltage converter (17), wherein the at least one voltage converter (17), in particular as a DC voltage converter, is arranged in the area of ​​the output interface (4), the at least one supply interface (6) and / or the second electrical conductor (12), so that the DC voltage of the at least one energy storage device (7) can be converted into the DC voltage for the battery (2), in particular reduced. Device according to one of the preceding claims, characterized in that the electrical circuit (10) comprises an actuating device (18) for adjusting the device (1) between a charging position and a starting aid position, wherein the actuating device (18) is preferably arranged in the area of ​​the second electrical conductor (12) and / or the third electrical conductor (13). Device according to one of the preceding claims, characterized in that the actuating device (18) comprises at least one capacitor (19) and / or a fourth electrical conductor (14), wherein in the starting aid position the capacitor (19) and / or in the charging position the fourth electrical conductor (14) is in electrical operative connection with the at least one output interface (4). Device according to one of the preceding claims, characterized in that the device (1) comprises several receiving sections (5), several supply interfaces (6) and / or at least one control unit (20), wherein the capacity and / or the energy supply of several energy storage devices (7) can preferably be detected and / or controlled by means of the control unit (20). Device according to one of the preceding claims, characterized in that the device (1) comprises at least one measuring device (21), one display unit (22), one input unit (23) and / or one computing unit (24). Device according to one of the preceding claims, characterized in that the device (1) comprises at least one housing (25), in particular designed as a case, wherein the housing (25) preferably comprises two half-shells (27) connected by at least one hinge (26) and / or at least one handle (28). Device according to one of the preceding claims, characterized in that the at least one supply unit (3), the at least one receiving section (5), the at least one supply interface (6), the at least one electrical circuit (10), the at least one power supply unit (16), the at least one voltage converter (17), the at least one actuating device (18), the at least one control unit (20), the at least one measuring device (21) and / or the at least one computing unit (24) is arranged in an interior space (29) of the housing (25), in particular in the interior space (29) of at least one of the half-shells (27). Device according to one of the preceding claims, characterized in that the at least one network interface (8), the at least one output interface (4), the display unit (22) and / or the input unit (23) is arranged on an outside (30) of the housing (25), in particular on the outside (30) of at least one of the half-shells (27). Device according to one of the preceding claims, characterized in that the device (1) comprises the at least one energy storage device (7) and / or the at least one energy storage device (7) comprises a connecting section (38) designed corresponding to the receiving section (5). Method for operating a device (1) as a jump-start device to assist a battery (2) of a motor vehicle when starting the motor vehicle, in particular according to one of the preceding claims, wherein an electrical energy is provided by a supply unit (3) of the device (1) for the motor vehicle connected to an output interface (4) of the device (1), characterized in that at least one energy storage device (7) is detachably mounted on the supply unit (3) and electrically connected to the supply unit (3), so that the motor vehicle, in particular the battery (2) of the motor vehicle, can be supplied with the electrical energy of the at least one energy storage device (7).

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