Transport apparatus for accumulators

Abstract

The invention relates to an apparatus for transporting a number of accumulators, in particular as energy stores for a machine tool, the apparatus comprising: a control device having at least one memory unit; a communication device for inputting and outputting signals; a navigation device; a receiving and holding device for receiving and holding at least one accumulator; a drive for driving the apparatus; a chassis device having a steering unit; and a power supply at least for supplying the drive with electrical energy. The invention also relates to a method for the open-loop and closed-loop control of an apparatus for transporting a number of accumulators. The invention also relates to a system containing an apparatus for transporting a number of accumulators, and containing a charging apparatus for supplying at least one accumulator with electrical energy.

Description

[0001] 2025ID00042

[0002] Hilti Aktiengesellschaft in Schaan

[0003] Principality of Liechtenstein

[0004] Transport device for accumulators

[0005] The present invention relates to a device for transporting a number of accumulators, in particular as energy storage devices for a machine tool.

[0006] Furthermore, the present invention relates to a method for controlling and regulating a device for transporting a number of accumulators.

[0007] Furthermore, the present invention relates to a system comprising a device for transporting a number of accumulators and a charging device for supplying at least one accumulator with electrical energy.

[0008] Commercially available battery charging devices, particularly those for supplying power tool batteries with electrical energy, are typically located in a specific position. If a worker needs a charged battery, they often have to travel long and time-consuming distances. This can lead to undesirable delays or work stoppages.

[0009] The object of the present invention is therefore to solve the problem described above.

[0010] The problem is solved by the subject matter of independent patent claims 1, 11 and 14.

[0011] Further advantageous embodiments of the subject matter according to the invention are contained in the corresponding dependent claims.

[0012] The problem is solved in particular by a device for transporting a number of accumulators, especially as energy storage for a machine tool.

[0013] According to the invention, the device comprises a control unit with at least one storage unit, a communication unit for inputting and outputting signals, a navigation unit, a receiving and holding unit for receiving and holding at least one accumulator, a drive for driving the device (electric motor), a chassis unit with a steering unit, and a power supply at least for supplying the drive unit with electrical energy. According to an advantageous embodiment, the receiving and holding unit may include at least a first and a second receiving unit.

[0014] According to a further advantageous embodiment, it may be possible that the at least one recording unit contains at least one interface for releasably connecting the recording unit to an accumulator.

[0015] According to a further advantageous embodiment, it may be possible that the at least one recording unit contains at least one interface for releasably connecting the recording unit to a sensor module.

[0016] According to a further advantageous embodiment, it may be possible for the sensor module to contain at least one sensor, wherein the at least one sensor can be connected to the control device, storage unit and / or navigation device in such a way that at least one value detected by the at least one sensor can be sent to the control device, storage unit and / or navigation device.

[0017] According to a further advantageous embodiment, it may be possible that the at least one receiving unit contains a locking device for selectively locking an accumulator or a sensor module in a receiving unit.

[0018] According to another advantageous embodiment, it may be possible for the locking device to include a signal input unit for reversibly setting the locking device to a locked or unlocked state.

[0019] According to another advantageous embodiment, it may be possible to connect the signal input unit of the locking device to the communication device.

[0020] According to a further advantageous embodiment, it is possible that a covering device for at least partially covering the at least one receiving unit is included, connected to at least one accumulator or at least one sensor module. According to a further advantageous embodiment, it is possible that the covering device includes a temperature control device for selectively cooling or heating the at least one receiving unit.

[0021] Furthermore, the problem is solved by a method for controlling and regulating a device for transporting a number of accumulators.

[0022] According to the invention, the following process steps are included.

[0023] - Connecting at least one first accumulator to the recording and holding device; - Sending at least one characteristic value of the at least first accumulator to the control device;

[0024] - Transporting the at least first accumulator from a first location to a second location depending on at least one characteristic value of the at least first accumulator or depending on at least one signal received by the communication device;

[0025] - Disconnecting at least the first accumulator from the receiving and holding device; - Connecting at least one second accumulator to the receiving and holding device; - Sending at least one characteristic value of the at least second accumulator to the control device;

[0026] - Transporting the at least second accumulator from the second location to a first or third location depending on at least one characteristic value of the at least second accumulator or depending on at least one signal received by the communication device.

[0027] The first battery can have a relatively low state of charge (for example, 10% charge capacity), and the second battery can have a relatively high state of charge (for example, 80%). This value can refer to the state of charge (or charge capacity or charge), SoC (State of Charge), or SoH (State of Health) of a battery.

[0028] According to an advantageous embodiment, the additional process steps may include

[0029] - Locking an accumulator or sensor module in a receiving unit by means of the locking device by inputting at least one first signal at the signal input unit; and - unlocking the at least one accumulator or sensor module from the receiving unit by inputting at least one second signal at the signal input unit.

[0030] According to another advantageous embodiment, the additional process steps may include

[0031] - Acquiring at least one value by at least one sensor of a sensor module; - Sending the at least one acquired value to the control unit, storage unit and / or navigation unit; and

[0032] - Adjusting the drive from a first to a second state and / or adjusting the chassis from a first to a second state depending on the at least one detected value.

[0033] Furthermore, the problem is solved by a system containing a device for transporting a number of accumulators and a charging device for supplying at least one accumulator with electrical energy.

[0034] According to the invention, the charging device includes a gripping device for removing at least one accumulator from a receiving unit and for inserting at least one accumulator into a receiving unit. Further advantages will become apparent from the following description of the figures. The figures illustrate various embodiments of the present invention.

[0035] The figures, the description, and the claims contain numerous features in combination. A person skilled in the art will expediently consider these features individually and combine them into meaningful further combinations.

[0036] They show:

[0037] Figure 1 shows a side view of the device according to the invention in a first embodiment;

[0038] Figure 2a shows a perspective view of a recording and holding device with accumulators in recording units;

[0039] Figure 2b shows a perspective view of the recording and holding device without accumulators in the recording units;

[0040] Figure 2c shows a side view of a receiving and holding device according to a first exemplary embodiment with receiving units connected with accumulators and sensor modules;

[0041] Figure 3 shows a side view of the device according to the invention and of a loading device with a gripping device in a first state;

[0042] Figure 4 shows a side view of the device according to the invention and of the loading device with the gripping device in a second state;

[0043] Figure 5 shows a side view of the device according to the invention and of the loading device with the gripping device in a third state;

[0044] Figure 6 shows a side view of the device according to the invention and of the loading device with the gripping device in a fourth state;

[0045] Figure 7 shows a side view of the device according to the invention and of the loading device with the gripping device in a fifth state;

[0046] Figure 8 shows a side view of the device according to the invention and of the loading device with the gripping device in a sixth state; Figure 9 shows a side view of the device according to the invention and of the loading device with the gripping device in a seventh state;

[0047] Figure 10 shows a side view of the device according to the invention with a covering device and a temperature control device in a closed state; and

[0048] Figure 11 shows a side view of the device according to the invention with the cover device and the temperature control device in an open state. Examples of embodiments:

[0049] Figure 1 shows a device 1 for transporting a number of accumulators 2, in particular as energy storage devices for a machine tool, according to an exemplary embodiment.

[0050] The device 1 essentially comprises a housing 3, a control unit 4 with a storage unit 5, a communication unit 6, a navigation unit 7, a receiving and holding unit 8, a drive 9, a chassis unit 10 with a steering unit 11 and a power supply 12.

[0051] The housing 3 of the device 1 essentially includes the control unit 4 with the storage unit 5, the communication unit 6, the navigation unit 7, the drive 9 and the power supply 12, see Figure 1.

[0052] As shown in Figure 1, the receiving and holding device 8 is positioned on a top side 3a of the housing 3 and the chassis device 10 with the steering unit 11 is positioned on a bottom side 3b of the housing 3.

[0053] The control unit 4 serves to control and regulate the different functions of the device 1 or the individual components (e.g. the drive 9) of the device 1. The storage unit 11 contains, among other things, various threshold values, site plans, maps, positions, computational models (e.g. algorithms) and the like.

[0054] The communication device 6 serves to input and output signals and to communicate with external devices 13. An external device 13 is shown in Figure 4 as an example smartphone. The communication device 6 is connected to the control device 4. In the present embodiment, the communication device 6 is designed as a Bluetooth module.

[0055] Alternatively, the communication device 6 can also be configured as a standalone GSM / LTE / (2 / 2.5 / 3G / 4G / 5G (LTE)) module. According to a further alternative or additional embodiment, the communication device 6 can also have a USB port or another data transmission interface.

[0056] The navigation device 7 contains a GPS module (Global Positioning System) and is used to navigate the device 1. Using position determinations (e.g., satellite, radio, GSM, or inert or autonomous system) and / or geoinformation (e.g., topographic, road, aerial, or nautical charts), it is possible to guide the device to a selected location or along a route, taking desired criteria into account. The navigation device 7 communicates with the communication device 6 and the control device 4.

[0057] The receiving and holding device 8 comprises six receiving units 8a for receiving and holding accumulators 2 or sensor modules 14. In the illustrated embodiment, four accumulators 2 are connected to four receiving units 8a, and two sensor modules 14 are connected to two receiving units 8a. The receiving and holding device 8 can also contain more or fewer than six receiving units 8a. Figure 2a shows an exemplary receiving and holding device 8 with six receiving units 8a, wherein an accumulator 2 is inserted into each receiving unit 8a. The receiving units 8a are designed with different depths so that accumulators 2 of different sizes can be accommodated. Figure 2b shows the exemplary receiving and holding device 8 with the six receiving units 8a without accumulators 2.

[0058] Each recording unit 8a has an interface 15 with a positive contact, a negative contact, and a communication contact. More than one positive contact, one negative contact, and one communication contact can also be present on a single connection unit. Figure 2b shows the interfaces of the respective recording units.

[0059] The positive and negative contacts allow a circuit to be closed with a connected battery. The communication contacts enable the exchange of data and information between the recording and holding device and the batteries or sensor modules.

[0060] The figures do not show positive contacts, negative contacts, or communication contacts.

[0061] The receiving and holding device 8 includes a connecting unit 16 for releasably connecting the receiving and holding device 8 to the housing 3 of the device 1 and to the control unit 4. The connecting unit enables the exchange of data and information between the receiving and holding device 8 and the control unit 4. This allows data and information to be exchanged between the accumulators 2 or the sensor modules 14 and the control unit 4.

[0062] A sensor module 14 essentially comprises a module housing 17, an interface 18, and a number of sensors 19. Additionally, each sensor module 14 can also include its own controller 20 and memory 21. In the present embodiment, a sensor module 14 includes a LiDAR sensor for detecting distances and velocities. Alternatively or additionally, a sensor module 14 can include a camera, ultrasonic sensor, sonar, and / or a radar unit.

[0063] The interface 18 of a sensor module 14 is identical to the interface of a battery 2, so that a circuit can be created with the power supply via the respective positive and negative contacts. This supplies the sensor module 14 with electrical energy. Data and information can be exchanged between the receiving and holding device 8 and the sensor modules 14 via the communication contacts.

[0064] The drive 9 serves to drive the device 1 and, according to the present embodiment, is designed as a brushless electric motor (e.g., a DC motor). The drive 9 is positioned inside the housing 3 of the device 1 and connected to the chassis 10 in such a way that a driving force can be transmitted to drive the device 1. In the present embodiment, the chassis 10 includes four wheels 22. Only two wheels 22 are shown in the figures. Alternatively, the chassis 10 includes a chain drive, a chain and wheel drive, or mechanical legs.

[0065] The steering unit 11 serves to steer or control the device 1 and, for this purpose, moves the pivotally mounted front wheels 22. The steering unit 11 is connected to the drive 9 in such a way that a portion of the force generated in the drive 9 can be transmitted to the steering unit 11. In the present embodiment, the steering unit 11 comprises a steering rod, a steering pinion, and a rack. The steering rod is connected to the drive 9 and transmits a torque to a steering pinion, which is positioned at one end of the steering rod. The rotatably mounted steering pinion is connected to the rack in such a way that a rotary motion from the steering pinion can be converted into a linear motion of the rack. The respective ends of the rack are connected to the wheels 22 in such a way that the wheels 22 can be rotated in a first or second direction. The steering rod, the steering pinion, or the rack are not shown in the figures.The steering unit 11 is connected to the control unit 4, the storage unit 5, the communication unit 6, and the navigation unit 7, enabling the exchange of data and information between these components. This allows the navigation unit 7 to intervene in the steering unit 11 via the control unit 4, based on data stored in the storage unit 5. The power supply 12 provides the drive 9 with electrical energy. In the present embodiment, the power supply 12 is designed as a separate accumulator and is positioned inside the housing 3 of the devices 1. Alternatively, the power supply 12 can also be designed using accumulators 2 located in the receiving units 8a.

[0066] Figure 2c shows an exemplary receiving and holding device 8 with six receiving units 8a. Each receiving unit 8a is equipped with a locking device 23 for selectively locking either an accumulator 2 or a sensor module 14 within the receiving unit 8a. Each individual locking device 23 is connected to the control unit 4 such that the locking devices 23 are actuated. This actuating action can activate or deactivate one or all of the locking devices 23. When a signal input unit 50 of the locking device 23 receives a corresponding signal from the control unit 4 and the locking device 23 is activated, the respective accumulator 2 or sensor module 14 cannot be removed from the receiving unit 8a.If a locking device 23 is deactivated by a corresponding signal from the control device 4, the respective accumulator 2 or sensor module 14 can be removed again from the receiving unit 8a.

[0067] Figures 10 and 11 show a device 1 in a further exemplary embodiment with a cover 24 and a temperature control device 25. The cover 24 is essentially designed in the form of a dome with a pivoting device 26 and a closure 27. Figure 10 shows the device 1 with the cover 24 closed. In the closed state, the cover 24 can be locked by the closure 27. According to the present embodiment, the closure 27 is electrically operable and is connected to the control device 4 such that the closure 27 can be locked or unlocked by the control device 4. The actual connection between the closure 27 and the control device 4 is not shown in the figures. Figure 11 shows the device 1 with the cover 24 closed.To open and close, the dome-shaped cover device 24 is pivoted in the direction of rotation E or F by means of the pivoting device 26.

[0068] The temperature control device 25 serves to selectively cool or heat the receiving units 8a under the cover device 27. As indicated in the figures, the temperature control device 25 includes a temperature sensor 28, a heater 29, and two fans 30. The temperature sensor 28, the heater 29, and the two fans 30 are connected to the control device 4 via cables such that temperature values ​​detected by the temperature sensor 28 can be sent to the control device 4. If a detected temperature value corresponds to a specific threshold value stored in the memory unit 4, the heater 29 and / or the fans 30 are activated or deactivated.

[0069] Figures 3 to 9 show exemplary process steps for carrying out the method according to the invention on a system 100 according to an exemplary embodiment.

[0070] System 100 essentially comprises the device 1 for transporting a number of accumulators 2 and a charging device 40 for supplying accumulators 2 with electrical energy.

[0071] The loading device 40 essentially comprises a frame 41, one or more gripping devices 42, a power supply 43, a control system 44 and a communication device 45.

[0072] The power supply 43 is designed as a mains power connection (e.g., 120V, 230V, or 400V) according to an exemplary embodiment shown in Figure 9. The charging device 40 contains a rectifier 46, see Figure 9.

[0073] The power supply 43 and the communication device 45 are connected to the control unit 44 for the exchange of data and information.

[0074] According to an exemplary embodiment, the communication device 45 is equipped with a Bluetooth module and a WiFi module (see Figure 9). The communication device 45 enables the exchange of data and information between the charging device 40 and a device 1 for transporting accumulators 2. Each gripping device 42 is connected to a drive 46, allowing the gripping device 42 to be moved selectively in the direction of arrows A, B, C, or D. Each drive 46 is individually connected to the power supply 43 of the charging device 40 for the provision of electrical energy.

[0075] Furthermore, each gripping device 42 has a gripping unit 47 for gripping and holding an accumulator 2 or a sensor module 14. According to an exemplary embodiment, the gripping unit 47 is designed in the shape of pincers. The gripping unit 47 includes an interface 48 for releasable connection to an accumulator 2. Through the interface 48 of the gripping unit 47, the accumulator 2 can be connected to the power supply 43 of the charging device 40 in such a way that an accumulator 2 can be supplied with electrical energy when an accumulator 2 is located in a gripping unit 47. The gripping unit 47 is connected to the drive 46 in such a way that the gripping unit 47 can grip and release an accumulator 2.

[0076] In the exemplary embodiment, the charging device 40 has a first and second gripping device 42 for removing a battery 2 from a receiving unit 8a and for inserting a battery 2 into a receiving unit 8a. Alternatively, the charging device 40 can also contain more or fewer than two gripping devices 42. The device 1 essentially serves to safely transport one or more batteries 2 from a first location to a second location. According to the present embodiment, the first location is an area of ​​a construction site where work is being carried out with a battery-powered power tool (e.g., a drill, saw, grinder, or the like). The construction site or the power tool is not shown in the figures. According to the present embodiment, the second location is a charging device 40, see Figures 3 to 9.

[0077] According to the present embodiment, the transport of the accumulators 2 with the device 1 is dependent on at least one characteristic value of at least one accumulator 2 or on at least one signal received by the communication device 6. In other words, if an accumulator 2 transmits a state of charge to the device 1 as a characteristic value that corresponds to or even falls below a predetermined threshold (e.g., SoC less than 20%), the device 1 determines a route to a charging device 40 with the aid of the control device 4, the data stored in the memory unit, and the navigation device 7. The device then moves to the determined charging device 40.

[0078] Figure 3 shows the system 100 in a first state, with the device 1 being moved in the direction of arrow A towards the charging device 40. The receiving and holding device 8 holds an accumulator 2 with a relatively low state of charge (e.g., 10% SoC) in a first receiving unit 8a. This accumulator 2 is to be charged using the charging device 40. A first gripping device 42 does not grip any accumulator 2, and a second gripping device 42 grips one accumulator 2. The second accumulator 2 is supplied with electrical energy by the second gripping device 42. Both gripping devices 42 are in a first position. When a gripping device 42 is in the first position, the gripping unit 47 has been moved upwards as far as possible in the direction of arrow C.In Figure 4, the device 1 is positioned relative to the charging device 40 such that a first accumulator 2 is positioned in a first receiving unit 8a in the direction of arrow D and below the first gripping device 42.

[0079] In Figure 5, the gripping unit 47 of the first gripping device 42 has been moved from the first position to a second position by the drive 46. In the second position, the gripping unit 47 is located below the first position in the direction of arrow D and grips the first accumulator 2. The second position is implemented as a predetermined or defined height H, see Figure 5. According to an alternative embodiment, the charging device 40 can contain one or more distance sensors (e.g., in the form of a radar, a camera, or a LiDAR sensor) by which the respective orientation and position of a device 1 or of the respective accumulators 2 on a device 1 can be detected. The gripping devices 42 can then be positioned by the respective drives 46 based on the detected orientation and position data in order to grip the accumulators 2.Alternatively or additionally, a device 1 can send corresponding data and information via the communication device 6 to a loading device 40, which can be useful in the alignment and orientation of the gripping devices 42 or the gripping units 47.

[0080] If a different accumulator 2 than, for example, the first accumulator 2 is to be grasped and removed by device 1, a gripping device 42 can be moved by the drive 46 in the direction of arrow A or B and brought into a corresponding position.

[0081] In Figure 6, the gripping unit 47 of the first gripping device 42 has been moved from the second position to the first position by the drive 46 in the direction of arrow C.

[0082] In Figure 7, the device 1 has been moved a distance W in the direction of arrow B. The device 1 is moved in the direction of arrow B with a time delay (i.e., 10 seconds) after the control unit 4 of the device 1 has detected that the first accumulator 1 has been disconnected or removed from the first receiving unit 8a. The communication unit 6 of the charging device 40 sends corresponding data and information to the device 1 indicating that an accumulator 1 in the second gripping unit 42 is in a charged state (i.e., 80% SoC) and that this accumulator 1 is ready for delivery to the device 1. The gripping unit 47 of the second gripping unit 42 is in the first position. This data and information also includes details regarding...The device 1 is given a path W and a direction B to position itself at the second gripping device 42 for battery transfer using the drive 9 of the device 1. For example, if no battery 2 is ready for delivery to the device 1, the communication device 6 of the charging device 40 sends corresponding data and information to the device 1. The device 1 would then remain at the charging device 40 or move away from it. Using the navigation device 7 of the device 1, the device 1 can navigate to a specific (i.e., programmed) location. Alternatively, the device 1 can also navigate to a specific location based on data and information transmitted to the communication device 6.

[0083] In Figure 8, the first receiving unit 8a is located below the gripping unit 47 of the second gripping device 42 in the direction of arrow D. The gripping unit 47 of the second gripping device 42 has moved from the first to the second position. In the second position, the gripping unit 47 transfers the accumulator 2 to the free second receiving unit 8a, so that the accumulator 1 is connected to the interface 15 of the first receiving unit 8a. After the accumulator 2 is connected to the first receiving unit 8a, the accumulator 1 transmits the characteristic values ​​to the control unit 4 of the device 1 via the interface 15 of the first receiving unit 8a. These characteristic values ​​include, among other things, the state of charge (SoC) of the accumulator 2.

[0084] After successful transfer of the accumulator 2 to the first receiving unit 8a, the gripping unit 47 of the first gripping device 42 moves from the second position in the direction of arrow C back to the first position.

[0085] Device 1 then continues to move in the direction of arrow B.

[0086] The procedure described above can also be carried out in an almost identical manner using a sensor module 14 instead of an accumulator 2.

[0087] 1 Device

[0088] 2 Accumulator

[0089] 3 cases

[0090] 4 Control unit

[0091] 5 storage units

[0092] 6 Communication device

[0093] 7 Navigation system

[0094] 8 Receiving and holding device 8a Receiving unit

[0095] 9 Drive

[0096] 10 Chassis equipment

[0097] 11 Steering unit

[0098] 12 Energy supply

[0099] 13 external device

[0100] 14 Sensor module

[0101] 15 Interface of a recording unit 16 Connection unit

[0102] 17 module housings

[0103] 18 Interface

[0104] 19 sensors

[0105] 20 Control

[0106] 21 storage

[0107] 22 wheel

[0108] 23 Locking device

[0109] 24 Cover device

[0110] 25 Temperature control device 26 Swivel device

[0111] 27 Closure

[0112] 28 Temperature sensor

[0113] 29 Heating

[0114] 30 fans

[0115] 40 Charging device

[0116] 41 frames

[0117] 42 gripping devices

[0118] 43 Energy supply

[0119] 44 Control

[0120] 45 Communication device 46 Rectifier

[0121] 47 gripping units

[0122] 48 Interface of the gripping unit 50 Signal input unit

[0123] 100 System

Claims

Patent claims 1. Device (1) for transporting a number of accumulators (2), in particular as energy storage devices for a machine tool, characterized by - a control device (4) with at least one storage unit (5); - a communication device (6) for receiving and receiving signals; - a navigation device (7); - a receiving and holding device (8) for receiving and holding at least one accumulator (2); - a drive (9) to drive the device (1); - a chassis assembly (10) with a steering unit (11); and - an energy supply (12) at least to supply the drive (9) with electrical energy.

2. Device (1) according to claim 1, characterized in that the receiving and holding device (8) includes at least a first and second receiving unit (8a).

3. Device (1) according to claim 2, characterized in that the at least one recording unit (8a) includes at least one interface (15) for releasable connection of the recording unit (8a) to an accumulator (2).

4. Device (1) according to claim 2, characterized in that the at least one recording unit (8a) includes at least one interface (15) for releasable connection of the recording unit (8a) to a sensor module (14).

5. Device (1) according to claim 4, characterized in that the sensor module (14) contains at least one sensor (19), wherein the at least one sensor (19) can be connected to the control device (4), storage unit (5) and / or navigation device (7) in such a way that at least one value detected by the at least one sensor (19) can be sent to the control device, (4) storage unit (5) and / or navigation device (7).

6. Device (1) according to at least one of the preceding claims 1 to 5, characterized in that the at least one receiving unit (8a) includes a locking device (23) for selectively locking an accumulator (2) or a sensor module (14) in a receiving unit (8a).

7. Device (1) according to claim 6, characterized in that the locking device (23) includes a signal input unit (50) for reversibly setting the locking device (23) into a locked or unlocked state.

8. Device (1) according to claim 7, characterized in that the signal input unit (50) of the locking device (23) can be connected to the communication device (6).

9. Device (1) according to at least one of the preceding claims 1 to 8, characterized in that a covering device (24) for at least partially covering the at least one receiving unit (8a) connected with at least one accumulator (2) or at least one sensor module (14) is included.

10. Device (1) according to claim 9, characterized in that the covering device (24) includes a temperature control device (25) for selectively cooling or heating the at least one receiving unit (8a).

11. Method for controlling and regulating a device (1) according to at least one of claims 1 to 10, comprising at least the method steps: - Connecting at least one first accumulator (2) to the receiving and holding device (8); - Sending at least one characteristic value of the at least first accumulator (2) to the control device (4); - Transporting the at least first accumulator (2) from a first location to a second location depending on the at least one characteristic value of the at least first accumulator (2) or depending on at least one signal received by the communication device (6); - Separating at least the first accumulator (2) from the receiving and holding device (8); - Connect at least one second accumulator (2) to the receiving and holding device (8); - Sending at least one characteristic value of the at least second accumulator (2) to the control device (4); - Transporting the at least second accumulator (2) from the second location to a first or third location depending on the at least one characteristic value of the at least second accumulator (2) or depending on at least one signal received by the communication device (6).

12. Method according to claim 11, characterized by the following process steps: - Locking an accumulator (2) or a sensor module (14) in a receiving unit (8a) by means of the locking device (23) by inputting at least one first signal at the signal input unit (50); and - Unlocking the at least one accumulator (2) or sensor module (14) from the recording unit (8a) by inputting at least one second signal at the signal input unit (50).

13. Method according to claim 11 or 12, characterized by the following process steps: - Capturing at least one value by at least one sensor (19) of a sensor module (14); - Sending the at least one detected value to the control unit (4), storage unit (5) and / or navigation unit (7); and- adjusting the drive (9) from a first to a second state and / or adjusting the chassis unit (10) from a first to a second state depending on the at least one detected value.

14. System (100) comprising a device (1) for transporting a number of accumulators (2) according to at least one of claims 1 to 10 and a charging device (40) for supplying at least one accumulator (2) with electrical energy, characterized in that the charging device (40) has a gripping device (42) for removing at least one accumulator (2) from a receiving unit (8a) and for inserting at least one accumulator (2) into a receiving unit (8a). 20

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