WO2022122626A1 - Dispositif électronique pour outil électrique portatif - Google Patents

Dispositif électronique pour outil électrique portatif Download PDF

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Publication number
WO2022122626A1
WO2022122626A1 PCT/EP2021/084334 EP2021084334W WO2022122626A1 WO 2022122626 A1 WO2022122626 A1 WO 2022122626A1 EP 2021084334 W EP2021084334 W EP 2021084334W WO 2022122626 A1 WO2022122626 A1 WO 2022122626A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
interface
power tool
battery packs
voltage signal
Prior art date
Application number
PCT/EP2021/084334
Other languages
German (de)
English (en)
Inventor
Tibor Meszaros
Gyorgy Racz
Csaba Levai
Imre Bihari
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2022122626A1 publication Critical patent/WO2022122626A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits

Definitions

  • EP 2 534 744 B1 already describes an electronic device for a hand-held power tool, with at least one interface unit that is set up for connection to at least two battery packs, with at least one electronic interface unit that is connected to voltage signal inputs of the interface unit and for processing signals via the Voltage signal inputs transmittable voltage signals of at least two battery packs is set up known.
  • the invention is based on an electronic device for a hand-held power tool, with at least one interface unit that is set up for a connection with at least two battery packs, in particular that can be connected in series, in particular 18 V battery packs, with at least one electronic interface unit that is connected to voltage signal inputs of the interface unit and is set up to process voltage signals from the at least two battery packs that can be transmitted via the voltage signal inputs.
  • the electronic interface unit comprises at least one circuit unit which is set up to switch through between the different voltage signal inputs of the interface unit.
  • the circuit unit preferably includes at least one multiplexer, a relay, a rotary switch or the like.
  • the circuit unit is in particular intended to enable operating parameters to be read out, in particular by means of a control or regulating unit of the interface electronics unit and/or main control electronics of the handheld power tool, from the at least two battery packs arranged on the handheld power tool and connected in series to supply energy to the handheld power tool.
  • “Provided” should be understood to mean, in particular, specially programmed, designed and/or equipped.
  • the fact that an object is provided for a specific function is to be understood in particular to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.
  • the at least two battery packs are preferably connected at least in one operating state to the main control electronics of the handheld power tool, particularly preferably directly, in particular in order to transmit electrical energy from the at least two battery packs to electrical and/or electronic components of the handheld power tool to operate the handheld power tool.
  • the interface unit is preferably set up for optional connection to a further, in particular individual, battery pack, in particular a 36V battery pack, or the at least two battery packs, in particular two 18V battery packs.
  • an operating voltage can be generated at least in one operating state, which corresponds to an operating voltage of the additional, in particular individual, battery pack.
  • the interface unit has at least two interfaces, each of which is provided for connecting one of the at least two battery packs.
  • the at least two interfaces each have at least one voltage signal input.
  • a voltage signal can be transmitted from at least one first battery pack of the at least two battery packs to the electronic interface unit via the at least one voltage signal input of a first interface of the at least two interfaces.
  • the additional, in particular individual, battery pack in particular a 36V battery pack
  • the main control electronics of the handheld power tool in particular to supply electrical energy from the additional battery pack to electrical and/or electronic ones
  • the electronic device in particular the circuit unit, is preferably designed in such a way that operating parameters of the additional, in particular individual, battery pack when operating the handheld power tool with the additional battery pack and/or operating parameters of the at least two battery packs connected in series when operating the handheld power tool with the at least two Battery packs can be read from the control or regulation unit and/or the main control electronics.
  • the interface electronics unit in particular the circuit unit, is intended to transmit electrical energy from the battery packs arranged on the interface unit to electrical and/or electronic components of the hand-held power tool for operating the hand-held power tool.
  • the additional, in particular individual, battery pack is preferred, with the first interface of the interface unit and/or directly with the main control electronics for data communication, in particular for the transmission of operating parameters of the additional battery pack, connected between the other battery pack and the hand tool.
  • a voltage signal can be transmitted from at least one second battery pack of the at least two battery packs to the electronic interface unit via the at least one voltage signal input of a second interface of the at least two interfaces.
  • the interface unit in particular the respective interface, preferably has at least two voltage signal inputs for each of the at least two battery packs.
  • the voltage signal of the battery pack can, for example, be a charging voltage, in particular a state of charge, of the battery pack, a temperature of the battery pack, an identifier of the battery pack, a reference voltage of the battery pack, an internal resistance of the battery pack, a current of the battery pack, a running time of the battery pack or another, a correspond to the operating parameters of the battery pack that appear reasonable to a person skilled in the art.
  • a voltage signal from the first battery pack can preferably be transmitted to the electronic interface unit via the at least two voltage signal inputs of the first interface when the first battery pack is in a state at the first interface, with the two voltage signals preferably corresponding to different operating parameters.
  • a voltage signal of the second battery pack is in one of the Second interface arranged state of the second battery pack can be transmitted to the interface electronics unit, wherein the two voltage signals preferably correspond to different operating parameters.
  • the at least two interfaces of the interface unit are preferably designed as battery pack interfaces.
  • the at least two interfaces preferably have electrical contacts for electrical connection to the at least two battery packs.
  • the at least two interfaces have mechanical contacts for the mechanical connection to the at least two battery packs.
  • the interface unit and the interface electronics unit are preferably arranged on a common component of the electronic device and/or on a common circuit board.
  • the interface electronics unit is, for example, at least partially designed as a printed circuit board.
  • the circuit unit is preferably set up to switch through at least between the voltage signal inputs of the second interface of the interface unit. It is also conceivable that the circuit unit is alternatively or additionally set up to switch through at least between the voltage signal inputs of the first interface of the interface unit.
  • the circuit unit is preferably set up to have at least one voltage signal input, via which at least one voltage signal, in particular one that is different from a reference voltage signal, can be transmitted from at least one of the at least two battery packs to a voltage signal input of the interface unit, designed as a reference voltage contact, via which at least one reference voltage signal of the battery pack can be transmitted is to interconnect.
  • the electronic interface unit comprises at least the control or regulation unit, which is set up at least for data-technical communication with main control electronics of the hand-held power tool, at least when the electronic device is arranged on the hand-held power tool.
  • the control or regulation unit preferably has at least one processor, a data memory and at least one operating program stored in the data memory.
  • the control or regulating unit is in particular connected to the circuit unit, in particular electrically and/or in terms of data technology.
  • the control or regulating unit is preferably connected to at least one of the at least two interfaces, in particular to the second interface of the interface unit, via the circuit unit.
  • the Circuit unit circuitry arranged between the control or regulation unit and at least the second interface of the interface unit.
  • a technical and/or electrical connection between the first interface and the control or regulating unit is preferably free of a circuit unit for switching through between voltage signal inputs of the first interface.
  • a battery pack, in particular the first battery pack of the at least two battery packs, and the control or regulating unit preferably have the same reference voltage at least in one operating state.
  • At least one additional battery pack, in particular the second battery pack preferably has a reference voltage, at least in one operating state, which is different from the reference voltage of the first battery pack and/or the control or regulating unit.
  • the at least two battery packs have different reference voltages at least in one operating state as a result of the series connection of the at least two battery packs.
  • At least the other, in particular at least the second, battery pack of the at least two battery packs, which is arranged at the second interface at least in one operating state, has, at least in one operating state, a reference voltage which is at a higher voltage level than the reference voltage of the first battery pack and/or or the control or regulation unit.
  • a reference voltage which is at a higher voltage level than the reference voltage of the first battery pack and/or or the control or regulation unit.
  • at least one voltage signal from at least one of the at least two battery packs, in particular the second battery pack can be transmitted to the control or regulating unit via a corresponding voltage signal input of the interface unit, in particular at least the second interface.
  • at least the voltage signals transmitted by means of the first interface can be transmitted simultaneously to the open-loop or closed-loop control unit.
  • the control or regulating unit preferably has at least one analog/digital converter in order to convert analog input signals, in particular analog voltage signals transmitted via the interface unit, into digital signals.
  • the at least two battery packs are intended in particular to be connected in series with the hand-held power tool to supply power to the hand-held power tool.
  • the interface electronics unit is preferably provided to transmit operating parameters of the two battery packs to the main control electronics of the hand-held power tool.
  • the Main control electronics are preferably set up to control or regulate drive parameters, input parameters and/or output parameters of the hand-held power tool.
  • the main electronic control unit is preferably set up to transmit the drive parameters, input parameters and/or output parameters at least partially as a function of the operating parameter(s) transmitted by means of the electronic device, in particular the electronic interface unit, of at least one battery pack arranged on the hand-held power tool, particularly preferably of at least the two battery packs connected in series, to control or regulate.
  • the hand-held power tool is designed, for example, as a chain saw, a screwdriver, a hammer drill, a jigsaw or the like.
  • an electronic device can advantageously be provided which enables a particularly reliable measurement and/or processing of operating parameters of at least two battery packs which are connected in series and which are arranged on a hand-held power tool.
  • different operating parameters of two battery packs connected in series can be read out in a particularly reliable manner.
  • the at least two battery packs can advantageously be identified and/or assigned in a particularly reliable manner.
  • a particularly reliable battery pack identification can advantageously be ensured.
  • a particularly high level of protection for the battery pack can be advantageously implemented.
  • a particularly high utilization efficiency of the battery packs connected in series can advantageously be ensured.
  • a flexible energy supply for the hand-held power tool can be realized in a particularly advantageous manner.
  • the circuit unit includes at least two multiplexers, each of which is connected to at least one voltage signal input of the interface unit.
  • the two multiplexers preferably each have at least two switching states for voltage signal transmission from at least two voltage signal inputs of the interface unit.
  • the two multiplexers are preferably connected to different voltage signal inputs of the interface unit.
  • the voltage signal inputs of the interface unit are preferably each electrically connected to one of the at least two multiplexers.
  • the at least two multiplexers are preferential each electrically connected to at least one voltage signal input of the second interface of the interface unit.
  • the two multiplexers each have at least one switching state in which at least one voltage signal can be transmitted via at least one voltage signal input of the second interface.
  • At least a first multiplexer of the at least two multiplexers is preferably connected to at least one voltage signal input of the first interface and at least one voltage signal input of the second interface.
  • the first multiplexer has in particular at least two switching states, wherein in a first switching state at least one voltage signal can be transmitted via at least one voltage signal input of the first interface and in a second switching state at least one voltage signal can be transmitted via at least one voltage signal input of the second interface.
  • At least a second multiplexer of the at least two multiplexers is preferably connected directly to the control or regulation unit. In at least one switching state of the second multiplexer, in particular a voltage signal can be transmitted between the second multiplexer and the control or regulating unit, preferably directly.
  • a switching state of the at least two multiplexers can be set in particular by means of the control or regulating unit.
  • Setting of the switching states of the at least two multiplexers is preferably coupled to one another, in particular the control or regulation unit is connected to the circuit unit in such a way that the switching states of the at least two multiplexers can be set simultaneously by a control signal transmitted from the control or regulation unit to the circuit unit.
  • the switching states of the at least two multiplexers can be set independently of one another by means of the control or regulation unit.
  • the at least two multiplexers preferably have a matching number of switching states. Alternatively, however, it is also conceivable for the at least two multiplexers to have a different number of switching states.
  • a particularly robust electronic interface unit in particular a circuit unit, can advantageously be provided.
  • operating parameters can be read out from two battery packs connected in series to supply energy to a hand-held power tool.
  • the interface unit comprises a voltage signal input configured as a reference voltage contact for one, in particular the first battery pack already mentioned above, of the at least two battery packs and a voltage signal input configured as a further reference voltage contact for one, in particular the second battery pack already mentioned above, in the at least two battery packs , wherein the circuit unit comprises at least one, in particular the previously mentioned, first multiplexer, which is directly connected to the reference voltage contact and the further reference voltage contact.
  • the first multiplexer preferably has at least two switching states, with a reference voltage signal of the first battery pack being able to be transmitted via the reference voltage contact in a first switching state of the at least two switching states, and a reference voltage signal of the second battery pack being able to be transmitted via the further reference voltage contact in a second switching state of the at least two switching states.
  • operating parameters can be read out from two battery packs connected in series to supply energy to a hand-held power tool.
  • operating parameters of at least two battery packs that have different reference voltages can be reliably read out.
  • the electronic interface unit comprises at least one capacitor, which is electrically connected to the circuit unit and can be subjected to a voltage from at least one of the two battery packs depending on an on state of the circuit unit.
  • the circuit unit is preferably connected to the capacitor in such a way that, in at least one on-state of the circuit unit, the capacitor can be subjected to a voltage which corresponds, in particular, to a voltage signal, in particular different from a reference voltage signal, from at least one, in particular the second, of the at least two battery packs, preferably relatively corresponds to a reference voltage of the at least one, in particular the second, battery pack that can be transmitted by means of the reference voltage signal.
  • the circuit unit has at least one on-state in which the capacitor is connected directly to the control or Control unit and with a reference voltage contact of at least one, in particular the first, which is connected to at least two battery packs.
  • the circuit unit preferably has at least one on-state, in which a voltage present at the capacitor relative to a reference voltage of the control or regulation unit and/or a reference voltage of a further, in particular the first, battery pack of the at least two battery packs transmitted via the reference voltage contact by means of the reference voltage signal the control or regulation unit can be tapped.
  • a particularly precise and reliable measurement of operating parameters of battery packs connected in series can advantageously be made possible. Reliable measurability of operating parameters of battery packs connected in series can advantageously be implemented in a structurally simple manner.
  • the circuit unit comprises at least two multiplexers, in particular those already mentioned above, and the electronic interface unit at least one capacitor, in particular the one already mentioned above, with a first electrode of the capacitor being connected to a signal output of a first Multiplexer of the at least two multiplexers and a second electrode of the capacitor is connected to a signal output of one, in particular of the previously mentioned, second multiplexer of the at least two multiplexers.
  • at least the first multiplexer of the at least two multiplexers has at least one switching state in which the capacitor, in particular the first electrode of the capacitor, is connected to the voltage signal input of the interface unit, in particular the first interface, designed as a reference voltage contact, and/or to the reference voltage contact of the control or control unit is connected.
  • the first multiplexer has at least one further switching state, in which the capacitor, in particular the first electrode of the capacitor, is connected to the voltage signal input of the interface unit, in particular the second interface, designed as a further reference voltage contact. It is also conceivable that the first multiplexer has a large number of switching states, preferably at least more than one switching state, in which the first electrode of the capacitor is/are connected to the same voltage signal input of the interface unit, which is designed as a further reference voltage contact, in particular the second interface, is connected. At least the second multiplexer of the at least two multiplexers has at least one on state, in which the capacitor, in particular the second electrode of the capacitor, is connected to the control or regulating unit.
  • the second multiplexer preferably has at least one further switching state, in which the capacitor, in particular at least the second electrode of the capacitor, is connected to at least one voltage signal input, in particular different from a reference voltage contact, of the interface unit, in particular the second interface.
  • the second multiplexer preferably has a plurality of switching states in order to connect the capacitor, in particular the second electrode of the capacitor, to different voltage signal inputs of the interface unit, in particular the second interface, which are different from reference voltage contacts, preferably for the transmission of different voltage signals from at least one, in particular the second battery pack, which has at least two battery packs. Reliable measurability of operating parameters of battery packs connected in series can advantageously be implemented in a structurally simple manner.
  • a handheld power tool in particular the one already mentioned above, with an electronic device according to the invention and with a main electronic control unit, in particular the one already mentioned above, is used to control or regulate drive parameters, input parameters and/or output parameters, with the electronic device being connected to the main electronic control unit in terms of data technology, suggested.
  • the main control electronics and the electronic device are arranged on a common circuit board.
  • the electronic device is designed separately from the main electronic control unit and can preferably be releasably connected to the main electronic control unit, in particular in terms of data technology.
  • the technical data connection between the main control electronics and the electronic device is in particular wired or wireless.
  • the main control electronics and/or the electronic device are/is preferably arranged in a housing of the hand-held power tool.
  • the main electronic control system is preferably provided for controlling or regulating a drive unit of the hand-held power tool.
  • the drive unit preferably includes at least one electric motor.
  • the main electronic control system is preferably set up to to control or regulate the unit at least partially as a function of the operating parameter(s) transmitted by the electronic device, in particular the electronic interface unit, of at least one battery pack, particularly preferably of the at least two battery packs connected in series.
  • Particularly reliable operation of a hand-held power tool with at least two battery packs connected in series can advantageously be made possible.
  • a particularly safe and careful operation of a hand-held power tool can advantageously be implemented with at least two battery packs connected in series.
  • a hand-held power tool system is proposed with at least one hand-held power tool according to the invention and with at least two battery packs, in particular those already mentioned above.
  • the handheld power tool system preferably includes one additional battery pack, in particular the one already mentioned above, in particular a 36V battery pack.
  • the additional battery pack is preferably intended to operate the hand-held power tool with only one individual, in particular the additional, battery pack, in particular a 36V battery pack.
  • the handheld power tool system preferably the handheld power tool, is preferably set up, in particular by means of the electronic device, to be operated either with the at least two, in particular 18V battery packs, battery packs or with the additional, in particular individual, battery pack, in particular 36V battery pack.
  • the handheld power tool system is preferably designed in such a way, in particular by means of the electronic device, that operating parameters of the additional battery pack when the handheld power tool is operated with the additional battery pack and operating parameters of the at least two battery packs connected in series when the handheld power tool is operated with the at least two battery packs from the control or Control unit and / or the main control electronics can be read.
  • the electronic device In at least one operating state, in which the at least two battery packs are preferably arranged on the handheld power tool, the electronic device is preferably arranged between the at least two battery packs and the handheld power tool, in particular at least physically and/or in terms of data technology. It is also conceivable that the electronic device is at least partially arranged on at least one of the at least two battery packs.
  • a handheld power tool system can advantageously be made available that has a particularly durable and reliable operation of a hand tool with at least two battery packs.
  • the electronic interface unit include at least one capacitor, in particular the one already mentioned above, which is electrically connected to the circuit unit and, depending on an on-state of the circuit unit, with a voltage from one, in particular the second battery pack already mentioned above, of the at least two battery packs can be acted upon, the electronic interface unit comprising at least one, in particular the aforementioned control or regulating unit, which is set up to tap the voltage applied to the capacitor by means of the circuit unit of the second battery pack, in particular the aforementioned second battery pack and to directly tap a voltage of a further battery pack, in particular of the first one already mentioned above, of the at least two battery packs.
  • the control or regulating unit is preferably set up to process operating parameters of the at least two battery packs that are arranged on the handheld power tool in an operating state and in particular to transmit them to the main control electronics of the handheld power tool.
  • a measurement of the operating voltages of at least two battery packs connected in series can advantageously be implemented in a particularly simple manner in terms of construction.
  • the hand-held power tool system comprises at least one adapter which can be arranged on the hand-held power tool, in particular on a battery pack interface of the hand-held power tool, on which at least the electronic device is arranged.
  • the battery pack interface is set up for connection to only one, preferably the other, in particular 36V battery pack.
  • the adapter is preferably intended to be arranged at the battery pack interface of the hand-held power tool in order to enable the hand-held power tool to be connected to at least, in particular the two battery packs already mentioned above, connected in series, in particular 18 V battery packs, for operating the hand-held power tool and/or or particularly preferred to read operating parameters of the at least two battery packs.
  • the adapter preferably has at least one Adapter housing on, in or on which the electronic device is arranged.
  • the adapter is intended in particular to be releasably attached to the hand-held power tool, in particular to the battery pack interface of the hand-held power tool.
  • the adapter is particularly preferably non-destructively releasable on the hand-held power tool, in particular on the battery pack interface. It is also conceivable that the adapter is intended to be arranged detachably on at least one of the at least two battery packs.
  • the adapter can be arranged at least in one operating state at a distance from the handheld power tool on at least one of the at least two battery packs and for the operating parameters to be transmitted wirelessly from the open-loop or closed-loop control unit to the main control electronics, for example by means of a Bluetooth connection , a WLAN connection, an infrared connection, a Zigbee connection or the like.
  • the adapter can be clamped, latched, screwed or the like, in particular for attachment to the handheld power tool and/or to at least one of the at least two battery packs with the handheld power tool or at least one of the at least two battery packs.
  • a hand-held power tool can be retrofitted with the adapter in a particularly simple and convenient manner, in order to enable energy to be supplied by at least two battery packs connected in series.
  • the invention is also based on a method for electronic communication between a handheld power tool according to the invention and at least two battery packs arranged on the handheld power tool and connected in series, in particular those already mentioned above, by means of the electronic device according to the invention, with at least one voltage signal from at least one in one method step the at least two battery packs are transmitted via the interface unit to the interface electronics unit for processing.
  • a voltage signal that is different from a reference voltage signal is preferably transmitted via a voltage signal input of the interface unit that is different from a reference voltage contact, in particular the second interface of the interface unit, in particular from at least one, preferably the second, battery pack of the at least two battery packs to the interface electronics unit.
  • the first step is preferably located in the method step Multiplexer in an on state, in which at least one of the voltage signal inputs of the second interface, which is particularly preferably different from a reference voltage contact, is connected to the capacitor, preferably to the second electrode of the capacitor.
  • the first multiplexer of the at least two multiplexers is in an on-state, in particular, in which the capacitor, preferably the first electrode of the capacitor, is connected to the voltage signal input of the interface unit, in particular the second interface, designed as a further reference voltage contact.
  • the capacitor of the electronic interface unit is subjected to a voltage corresponding to the voltage signal transmitted via the interface unit, in particular the second interface of the interface unit, in particular relative to the reference voltage of the battery pack, in particular of the second battery pack of the at least two battery packs connected to the second interface is arranged.
  • a switching unit of the electronic interface unit switches through between the different voltage signal inputs of the interface unit.
  • a control signal for setting the switching state of the circuit unit, in particular of the at least two multiplexers is transmitted in particular from the control or regulation unit to the circuit unit.
  • an on state of the first multiplexer is preferably set in such a way that the second electrode of the capacitor is connected directly to the control or regulating unit.
  • a switching state of the second multiplexer is preferably set such that the first electrode of the capacitor is connected to the reference voltage contact of the first battery pack, which is in particular arranged at the first interface of the interface unit.
  • the voltage signal of the second rechargeable battery pack which corresponds to the voltage signal transmitted via the interface unit, in particular the second interface of the interface unit and which is present at the capacitor is preferably tapped off by the control or regulating unit.
  • the control or regulating unit preferably converts the voltage tapped off at the capacitor into a voltage using the analog/digital converter digital signal.
  • at least one voltage signal of the first battery pack transmitted via the interface unit, in particular the first interface of the interface unit, in particular a voltage signal different from a reference voltage signal is transmitted to the control or regulation unit and preferably read out.
  • the voltage signals of the first rechargeable battery pack that can be transmitted via the first interface are transmitted simultaneously to the control or regulating unit in at least one method step and, in particular, are read out. At least one voltage signal transmitted to the control or regulation unit is evaluated and/or processed by means of the control or regulation unit, in particular in the additional method step. In at least one further additional method step, the voltage signals of the at least two battery packs received by the control or regulation unit are preferably transmitted to the main control electronics of the handheld power tool, in particular for controlling or regulating the handheld power tool. It is also conceivable that in the further additional method step one or more voltage signals are transmitted from only one of the at least two battery packs to the main control electronics.
  • the method is particularly preferably carried out for all voltage signal inputs of the interface unit, in particular the second interface, preferably at least for those voltage signal inputs which differ from a reference voltage contact. It is also conceivable for a user to be able to make settings for voltage signals to be transmitted, for example via a user interface on the hand-held power tool or an external input device, in particular a smartphone, or the like.
  • a method can be provided which, at least by means of a circuit unit, which has in particular at least two multiplexers, and at least one capacitor, enables operating parameters to be read out from at least two battery packs connected in series on the hand-held power tool for supplying energy to a hand-held power tool.
  • Particularly reliable operation of the hand-held power tool can advantageously be implemented with at least two battery packs connected in series.
  • the electronic device according to the invention, the handheld power tool according to the invention, the handheld power tool system according to the invention and/or the method according to the invention should/should not be restricted to the above described application and embodiment may be limited.
  • the electronic device according to the invention, the handheld power tool according to the invention, the handheld power tool system according to the invention and/or the method according to the invention can have a number of individual elements, components and units as well as method steps that differs from the number specified here in order to fulfill a functionality described herein.
  • values lying within the specified limits should also be considered disclosed and can be used as desired.
  • FIG. 1 shows a hand-held power tool system according to the invention with a hand-held power tool according to the invention in a schematic representation
  • FIG. 2 shows an electronic device according to the invention for the handheld power tool in a schematic representation
  • FIG. 3 shows a schematic sequence of a method according to the invention for electronic communication between the handheld power tool and at least two battery packs arranged on the handheld power tool and connected in series by means of the electronic device and
  • Figure 1 shows a hand tool system 44a with a hand tool 12a and at least two battery packs 16a, 18a.
  • the hand-held power tool 12a is designed as a percussion drill. Alternatively, however, it is also conceivable for the hand-held power tool to be in the form of a chain saw, a screwdriver, a hammer drill, a jigsaw or the like.
  • the at least two battery packs 16a, 18a are connected in series.
  • the at least two battery packs 16a, 18a are intended to be connected in series to supply power to the hand-held power tool 12a with the hand-held power tool 12a.
  • the hand-held power tool 12a includes main control electronics 42a for controlling or regulating drive parameters, input parameters and/or output parameters (cf. FIG. 2).
  • the hand-held power tool 12a has at least one electronic device 10a.
  • the electronic device 10a is data-technically connected to the main control electronics 42a. At least in an operating state in which the at least two battery packs 16a, 18a are arranged on the handheld power tool 12a, the electronic device 10a is arranged physically and/or in terms of data technology between the at least two battery packs 16a, 18a and the handheld power tool 12a. It is conceivable that the main control electronics 42a and the electronic device 10a are arranged on a common circuit board. It is also conceivable that the electronic device 10a is formed separately from the main electronic control unit 42a and can be detachably connected to the main electronic control unit 42a, in particular in terms of data technology.
  • the data connection between the main control electronics 42a and the electronic device 10a is wired. Alternatively, it is also conceivable that the data connection between the main control electronics 42a and the electronic device 10a is wireless.
  • the main control electronics 42a and/or the electronic device 10a are/is arranged in a housing 74a of the hand-held power tool 12a. Alternatively, it is conceivable that the electronic device 10a is at least partially arranged on at least one of the at least two battery packs 16a, 18a.
  • the main electronic control system 42a is provided for controlling or regulating a drive unit 66a of the hand-held power tool 12a.
  • the drive unit 66a comprises at least one electric motor.
  • Figure 2 shows schematically the structure of the electronic device 10a for the hand tool 12a.
  • the electronic device 10a includes at least one interface unit 14a, which is set up for a connection to the at least two battery packs 16a, 18a.
  • the at least two battery packs 16a, 18a are designed as 18V battery packs.
  • the handheld power tool 12a is designed as a 36V handheld power tool. Alternatively, it is also conceivable that the handheld power tool 12a has an operating voltage that differs from 36V. It is also alternatively conceivable for the at least two battery packs 16a, 18a to be designed differently from 18V battery packs, for example as 10.8V battery packs, as 12V battery packs or the like, in particular depending on an operating voltage of handheld power tool 12a.
  • the electronic device 10a comprises at least one interface electronic unit 20a, which is connected to voltage signal inputs 22a of the interface unit 14a.
  • the electronic device 10a in particular the electronic interface unit 20a, is at least partially embodied as a printed circuit board, for example.
  • the electronic interface unit 20a is set up to process voltage signals transmitted via the voltage signal inputs 22a from the at least two battery packs 16a, 18a.
  • the interface electronics unit 20a is set up to transmit operating parameters of the two battery packs 16a, 18a to the main control electronics 42a of the hand-held power tool 12a.
  • the main electronic control unit 42a is set up to switch the drive unit 66a at least partially as a function of the operating parameter(s) transmitted by means of the electronic device 10a, in particular the electronic interface unit 20a, of at least one battery pack 16a, 18a of the at least two battery packs 16a, 18a, particularly preferably to be controlled or regulated by the at least two series-connected battery packs 16a, 18a.
  • hand-held power tool system 44a includes a further, in particular individual, battery pack, in particular 36V battery pack (not shown here), in order to operate hand-held power tool 12a with only the further, in particular individual, battery pack, in particular 36V battery pack.
  • the handheld power tool system 44a in particular the handheld power tool 12a, is set up by means of the electronic device 10a, optionally with the at least two, in particular 18V battery packs, battery packs 16a, 18a or with the additional, in particular individual battery pack, in particular 36V battery pack to be operated.
  • Hand-held power tool system 44a in particular electronic device 10a, is designed such that operating parameters of the other battery pack when hand-held power tool 12a is operated with the other battery pack and/or operating parameters of the at least two series-connected battery packs 16a, 18a when hand-held power tool 12a is operated with the at least two battery packs 16a, 18a can be read by the control or regulation unit 46a and/or the main control electronics 42a.
  • the at least two battery packs 16a, 18a are connected, particularly preferably directly, to the main control electronics 42a of the handheld power tool 12a, at least in one operating state, in order to transfer electrical energy from the at least two battery packs 16a, 18a to electrical and/or electronic components of the handheld power tool 12a to operate the To transfer hand tool 12a.
  • the interface unit 14a is set up for an optional connection to the other, in particular individual, battery pack, in particular 36V battery pack, or the at least two battery packs 16a, 18a, in particular 18V battery packs. By connecting the at least two battery packs 16a, 18a in series, an operating voltage that corresponds to an operating voltage of the other battery pack, in particular a 36V battery pack, can be generated at least in one operating state.
  • the interface unit 14a has at least two interfaces 70a, 72a, each of which is provided for connecting one of the at least two battery packs 16a, 18a.
  • the at least two interfaces 70a, 72a each have four voltage signal inputs 22a.
  • the at least two interfaces 70a, 72a each have one of four different numbers of voltage signal inputs 22a, preferably each having at least one voltage signal input 22a.
  • a voltage signal can be transmitted from at least one first battery pack 16a of the at least two battery packs 16a, 18a to the electronic interface unit 20a via the four voltage signal inputs 22a of a first interface 70a of the at least two interfaces 70a, 72a.
  • the other, in particular individual, battery pack in particular a 36V battery pack
  • the main control electronics 42a of the handheld power tool 12a is connected, particularly preferably directly, to the main control electronics 42a of the handheld power tool 12a in order to supply electrical energy from the other battery pack to electrical and/or electronic components of the handheld power tool 12a to transmit an operation of the handheld power tool 12a and / or operating parameters of the other battery pack directly read out of the main control electronics 42a.
  • the additional, in particular individual, battery pack, in particular 36V battery pack when the handheld power tool 12a is operated with only the additional battery pack, with the first interface 70a of the interface unit 14a and/or directly with the main control electronics 42a for data communication, in particular for the transmission of operating parameters of the other battery pack, is connected between the other battery pack and the hand-held power tool 12a.
  • a voltage signal can be transmitted from at least one second battery pack 18a of the at least two battery packs 16a, 18a to the electronic interface unit 20a via the four voltage signal inputs 22a of a second interface 72a of the at least two interfaces 70a, 72a.
  • a voltage signal that corresponds to an operating parameter of at least one of the at least two battery packs 16a, 18a can be transmitted via the voltage signal inputs 22a.
  • Voltage signals of the first battery pack 16a can be transmitted via the four voltage signal inputs 22a of the first interface 70a when the first battery pack 16a is in a state at the first interface 70a, and these signals correspond to a charging voltage, a temperature, an identifier and a reference voltage of the first battery pack 16a.
  • Voltage signals of the second battery pack 18a can be transmitted via the four voltage signal inputs 22a of the second interface 72a when the second battery pack 18a is in a state at the second interface 72a, which signals correspond to a charging voltage, a temperature, an identifier and a reference voltage of the second battery pack 18a.
  • at least one of the voltage signals corresponds to an internal resistance, a current, a running time or another operating parameter of at least one of the at least two battery packs 16a, 18a that appears reasonable to a person skilled in the art.
  • the interface unit 14a in particular the first interface 70a, comprises at least one voltage signal input 22a designed as a reference voltage contact 30a for the first battery pack 16a of the at least two battery packs 16a, 18a.
  • the interface unit 14a in particular the second interface 72a, comprises at least one voltage signal input 22a, designed as a further reference voltage contact 32a, for the second battery pack 18a of the at least two battery packs 16a, 18a.
  • the at least two interfaces 70a, 72a each have electrical contacts for electrical connection to the at least two battery packs 16a, 18a.
  • the at least two interfaces 70a, 72a have mechanical contacts for mechanical connection to the at least two battery packs 16a, 18a.
  • the interface unit 14a and the interface electronics unit 20a are arranged on a common component of the electronics device 10a, in particular on a common circuit board.
  • the interface electronics unit 20a includes at least one circuit unit 24a which is set up to switch through between the different voltage signal inputs 22a of the interface unit 14a.
  • the interface electronics unit 20a in particular the circuit unit 24a, is provided for the purpose of reading out, in particular by means of the control or regulating unit 46a and/or the main control electronics 42a, operating parameters from the at least two for supplying power to the hand-held power tool 12a arranged on the hand-held power tool 12a and in series switched battery packs 16a, 18a, in particular the second battery pack 18a to allow.
  • the circuit unit 24a is set up to switch through at least between the voltage signal inputs 22a of the at least second interface 72a of the interface unit 14a.
  • Circuit unit 24a is set up to connect at least one voltage signal input 22a of the four voltage signal inputs 22a of the second interface 72a, via which at least one voltage signal of the second battery pack 18a that is different from a reference voltage signal, can be transmitted to the voltage signal input 22a, configured as a further reference voltage contact 32a, of the interface unit 14a, in particular of the second interface 72a, via which at least one reference voltage signal of the second battery pack 18a can be transmitted.
  • Interface electronics unit 20a includes at least one control or regulation unit 46a, which is set up at least for data communication with main control electronics 42a of handheld power tool 12a, in particular at least when electronic device 10a is arranged on handheld power tool 12a.
  • the control or regulating unit 46a is electrically and/or data-connected to the circuit unit 24a.
  • the control or regulating unit 46a is connected at least to the second interface 72a of the interface unit 14a via the circuit unit 24a.
  • the circuit unit 24a is arranged between the open-loop or closed-loop control unit 46a and the second interface 72a of the interface unit 14a.
  • a technical and/or electrical connection between the first interface 70a and the control or regulating unit 46a is free of a circuit unit for switching through between voltage signal inputs 22a of the first interface 70a.
  • the first battery pack 16a of the at least two battery packs 16a, 18a and the control or regulating unit 46a have the same reference voltage at least in one operating state.
  • At least the second battery pack 18a has, at least in one operating state, a reference voltage that is different from the reference voltage of the first battery pack 16a and/or the control or regulating unit 46a.
  • the at least two battery packs 16a, 18a have different reference voltages, at least in one operating state, as a result of the series connection of the at least two battery packs 16a, 18a.
  • At least the second battery pack 18a of the at least two battery packs 16a, 18a, which is arranged at the second interface 72a, has, at least in one operating state, a reference voltage which is at a higher voltage level than the reference voltage of the first battery pack 16a and/or the control or control unit 46a.
  • At least one voltage signal of the second battery pack 18a can be transmitted to the control or regulating unit 46a via a corresponding voltage signal input 22a of the interface unit 14a, in particular at least the second interface 72a, depending on an on state of the circuit unit 24a.
  • the voltage signals transmitted by means of the first interface 70a can be transmitted simultaneously to the control or regulating unit 46a.
  • the control or regulating unit 46a has at least one analog/digital converter in order to convert analog input signals, in particular analog voltage signals transmitted via the interface unit 14a, into digital signals.
  • the circuit unit 24a includes at least two multiplexers 26a, 28a, which are each connected to at least one voltage signal input 22a of the interface unit 14a.
  • the switching unit 24a includes at least one relay, a rotary switch or the like.
  • the two multiplexers 26a, 28a each have four switching states for voltage signal transmission from the four voltage signal inputs 22a of the two interfaces 70a, 72a of the interface unit 14a.
  • the circuit unit 24a it is also conceivable, in particular depending on a number of interfaces and/or voltage signal inputs 22a, for the circuit unit 24a to be one of two different numbers of multiplexers and/or the multiplexers have one of four different numbers of switching states.
  • the two multiplexers 26a, 28a are connected to different voltage signal inputs 22a of the interface unit 14a.
  • the at least two multiplexers 26a, 28a are each electrically connected to at least one voltage signal input 22a of the second interface 72a of the interface unit 14a.
  • the two multiplexers 26a, 28a each have at least one switching state in which at least one voltage signal can be transmitted via at least one voltage signal input 22a of the second interface 72a.
  • At least one first multiplexer 28a of the at least two multiplexers 26a, 28a is connected to at least one voltage signal input 22a of the first interface 70a and at least one voltage signal input 22a of the second interface 72a.
  • the first multiplexer 28a of the at least two multiplexers 26a, 28a is directly connected to the reference voltage contact 30a and the further reference voltage contact 32a.
  • At least one voltage signal in particular a reference voltage signal of the first battery pack 16a, can be transmitted to the electronic interface unit 20a via at least one voltage signal input 22a, in particular the reference voltage contact 30a, of the first interface 70a.
  • at least one voltage signal in particular a reference voltage signal of the second battery pack 18a, can be transmitted via at least one voltage signal input 22a, in particular the further reference voltage contact 32a, of the second interface 72a to the electronic interface unit 20a.
  • At least a second multiplexer 26a of the at least two multiplexers 26a, 28a is connected directly to the control or regulating unit 46a.
  • a voltage signal can be transmitted directly between the second multiplexer 26a and the control or regulating unit 46a.
  • at least one voltage signal can be transmitted via at least one voltage signal input 22a of the second interface 72a.
  • a switched-on state of the at least two multiplexers 26a, 28a can be set using the control or regulating unit 46a.
  • a setting of the switching states of the at least two multiplexers 26a, 28a is coupled to one another, in particular the control or regulation unit 46a is connected to the circuit unit 24a in such a way that the switching states of the at least two multiplexers 26a, 28a can be set simultaneously by a control signal transmitted from the control or regulation unit 46a to the circuit unit 24a.
  • the switching states of the at least two multiplexers 26a, 28a can be set independently of one another by means of the control or regulating unit 46a.
  • the electronic interface unit 20a includes at least one capacitor 34a, which is electrically connected to the circuit unit 24a and can be subjected to a voltage from at least one of the at least two battery packs 16a, 18a depending on an on state of the circuit unit 24a.
  • Circuit unit 24a is connected to capacitor 34a in such a way that, in at least one on state of circuit unit 24a, capacitor 34a can be subjected to a voltage which corresponds to a voltage signal, in particular different from a reference voltage signal, of second battery pack 18a relative to a reference voltage that can be transmitted by means of the reference voltage signal of the second battery pack 18a corresponds.
  • Circuit unit 24a has at least one on-state, in which capacitor 34a is connected directly to control or regulating unit 46a and to reference voltage contact 30a of first battery pack 16a.
  • Circuit unit 24a has at least one on-state, in which a voltage at capacitor 34a is relative to a reference voltage of control or regulating unit 46a and/or a reference voltage of the first battery pack 16a of the at least two battery packs 16a, 18a, transmitted via the reference voltage contact 30a by means of the reference voltage signal can be tapped by means of the control or regulating unit 46a.
  • a first electrode 36a of the capacitor 34a is connected to a signal output 40a of the first multiplexer 28a of the at least two multiplexers 26a, 28a, and a second electrode 38a of the capacitor 34a is connected to a signal output 40a of the second multiplexer 26a of the at least two multiplexers 26a, 28a.
  • the first multiplexer 28a has at least the switched-on state, in which the capacitor 34a, in particular the first electrode 36a of the capacitor 34a, is connected to the voltage signal input 22a, designed as a reference voltage contact 30a, of the interface unit 14a, in particular the first Interface 70a and / or connected to the reference voltage contact 30a of the control or regulating unit 46a.
  • the capacitor 34a in particular the first electrode 36a of the capacitor 34a, is connected to the voltage signal input 22a of the interface unit 14a, in particular the second interface 72a, configured as a further reference voltage contact 32a.
  • the second multiplexer 26a of the at least two multiplexers 26a, 28a is at least in the on state, in which the capacitor 34a, in particular the second electrode 38a of the capacitor 34a, is connected to the control or regulating unit 46a.
  • the capacitor 34a in particular at least the second electrode 38a of the capacitor 34a, is connected to a voltage signal input 22a of the interface unit 14a, in particular the second interface 72a, which is different from a reference voltage contact 30a, 32a.
  • the control or regulating unit 46a is set up to tap off the voltage of the second rechargeable battery pack 18a applied to the capacitor 34a by means of the circuit unit 24a at the capacitor 34a.
  • the control or regulating unit 46a is set up to tap a voltage of the first battery pack 16a of the at least two battery packs 16a, 18a directly.
  • the control or regulating unit 46a is set up to process operating parameters of the at least two battery packs 16a, 18a, which are arranged on the handheld power tool 12a in an operating state, and/or to transmit them to the main control electronics 42a of the handheld power tool 12a.
  • the interface electronics unit 20a has at least one signal processing unit 62a.
  • the signal processing unit 62a is set up at least for signal processing of the voltage signals received via the interface unit 14a.
  • a signal processing element 64a is arranged at least between circuit unit 24a and interface unit 14a, in particular second interface 72a, and/or between interface unit 14a, in particular first interface 70a, and control or regulating unit 46a.
  • the signal processing element 64a can be designed, for example, as a signal filter, a signal amplifier, a signal attenuator, a linearizer or the like.
  • FIG. 3 shows a schematic sequence of a method for electronic communication between handheld power tool 12a and the at least two series-connected battery packs 16a, 18a arranged on handheld power tool 12a by means of electronic device 10a.
  • a method step 52a at least one voltage signal is transmitted from at least one of the at least two battery packs 16a, 18a via the interface unit 14a to the electronic interface unit 20a for processing.
  • a voltage signal from the second battery pack 18a which is different from a reference voltage signal, is transmitted from the second battery pack 18a to the electronic interface unit 20a via a voltage signal input 22a, which is different from a reference voltage contact 30a, 32a, of the interface unit 14a, in particular the second interface 72a of the interface unit 14a.
  • the first multiplexer 28a is preferably in one of the further switching states in which at least one of the voltage signal inputs 22a of the second interface 72a, which is different from a reference voltage contact 30a, 32a, is connected to the capacitor 34a, preferably to the second electrode 38a of the capacitor 34a, is connected.
  • the first multiplexer 28a of the at least two multiplexers 26a, 28a is in one of the other switching states in which the capacitor 34a, in particular the first electrode 36a of the capacitor 34a, is connected to the voltage signal input 22a of the interface unit 14a, which is designed as a further reference voltage contact 32a , in particular the second interface 72a, is connected.
  • the capacitor 34a of the electronic interface unit 20a is subjected to a voltage corresponding to the voltage signal transmitted via the interface unit 14a, in particular the second interface 72a of the interface unit 14a, in particular relative to the reference voltage of the second battery pack 18a, which is connected to the second Interface 72a is arranged.
  • the switching unit 24a of the electronic interface unit 20a switches through between the different voltage signal inputs 22a of the interface unit 14a.
  • an on-state of the second multiplexer 26a is set in such a way that the second electrode 38a of the capacitor 34a is connected directly to the control or regulating unit 46a.
  • an on-state of the first multiplexer 28a is set such that the first electrode 36a of the capacitor 34a is connected to the reference voltage contact 30a of the first battery pack 16a, which is arranged in particular at the first interface 70a of the interface unit 14a.
  • step 56a the voltage signal of the second battery pack 18a which is transmitted via the interface unit 14a, in particular the second interface 72a of the interface unit 14a, and which voltage is present at the capacitor 34a, is tapped off by the control or regulating unit 46a.
  • the control or regulating unit 46a converts the voltage tapped off at the capacitor 34a into a digital signal using the analog/digital converter.
  • at least one voltage signal of the first battery pack 16a which is transmitted via the interface unit 14a, in particular the first interface 70a of the interface unit 14a, and which is different from a reference voltage signal, is transmitted to the control or regulating unit 46a and read out.
  • the voltage signals of the first rechargeable battery pack 16a that can be transmitted via the first interface 70a are particularly preferably transmitted simultaneously to the control or regulating unit 46a in at least one method step and, in particular, are read out. At least one voltage signal transmitted to the control or regulation unit 46a is evaluated and/or processed by means of the control or regulation unit 46a in the additional method step 56a.
  • the voltage signals of the at least two battery packs 16a, 18a received by the control or regulation unit 46a are transmitted to the main control electronics 42a of the handheld power tool 12a, in particular for controlling or regulating the handheld power tool 12a. It is also conceivable that in the further additional method step 58a one or more voltage signals from only one of the at least two battery packs 16a, 18a to the main control electronics 42a be transmitted. The method is carried out for all, in particular at least for the voltage signal inputs 22a of the interface unit 14a, in particular the second interface 72a, which are different from a reference voltage contact 30a, 32a. It is also conceivable for a user, for example via a user interface 68a on the handheld power tool 12a or an external input device, in particular a smartphone, or the like, to be able to make settings via voltage signals to be transmitted.
  • FIG. 1 A further exemplary embodiment of the invention is shown in FIG.
  • the following descriptions and the drawing are essentially limited to the differences between the exemplary embodiments, whereby with regard to components with the same designation, in particular with regard to components with the same reference numbers, the drawings and/or the description of the other exemplary embodiment, in particular Figures 1 to 3, can be referred.
  • the letter a follows the reference number of the exemplary embodiment in FIGS.
  • the letter a has been replaced by the letter b.
  • Figure 4 shows a hand tool system 44b with a hand tool 12b and at least two battery packs 16b, 18b.
  • At least one adapter 48b is arranged on hand-held power tool 12b.
  • the adapter 48b is arranged at a battery pack interface 50b of the hand-held power tool 12b.
  • An electronic device 10b is arranged on the adapter 48b.
  • the electronic device 10b comprises at least one interface unit (not shown here), which is set up for a connection to the at least two battery packs 16b, 18b connected in series.
  • Electronic device 10b includes at least one electronic interface unit (not shown here), which is connected to voltage signal inputs of the interface unit and is set up to process voltage signals from the at least two battery packs 16b, 18b that can be transmitted via the voltage signal inputs.
  • the interface electronics unit includes at least one circuit unit (not shown here), which is set up to switch through between the different voltage signal inputs of the interface unit.
  • the battery pack interface 50b is set up for connection to only one further, in particular individual, battery pack (not shown here), in particular a 36V battery pack.
  • Adapter 48b is intended to be arranged on battery pack interface 50b of handheld power tool 12b, in order to enable handheld power tool 12b to be connected to at least the two series-connected battery packs 16b, 18b, in particular 18V battery packs, for operating handheld power tool 12b and / or to read out the operating parameters of the at least two battery packs 16b, 18b.
  • the adapter 12b has at least one adapter housing 76b, in or on which the electronic device 10b is arranged.
  • the adapter 48b is intended to be releasably attached to the handheld power tool 12b, in particular to the battery pack interface 50b of the handheld power tool 12b.
  • the adapter 12b is attached to the hand-held power tool 12b, in particular to the battery pack interface 50b, so that it can be detached in a non-destructive manner. It is also conceivable that the adapter 48b is intended to be arranged detachably on at least one of the at least two battery packs 16b, 18b.
  • the adapter 48b is arranged at least in one operating state at a distance from the handheld power tool 12b on at least one of the at least two battery packs 16b, 18b and a transmission of the operating parameters from a control or regulating unit (not shown here) of the control electronics unit to a main control electronics (not shown here) of the handheld power tool 12b takes place wirelessly, for example by means of a Bluetooth connection, a WLAN connection, an infrared connection, a Zigbee connection or the like.
  • the adapter 48b can be clamped, latched, screwed or the like to the handheld power tool 12b or at least one of the at least two battery packs 16b, 18b for attachment to the handheld power tool 12b and/or to at least one of the at least two battery packs 16b, 18b.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un dispositif électronique (10a ; 10b) pour un outil électrique portatif (12a ; 12b), le dispositif électronique comprenant : au moins un module d'interface (14a ; 14b) qui est conçu pour connexion à au moins deux blocs-batteries (16a ; 16b, 18a ; 18b), pouvant en particulier être connectés en série, en particulier des blocs-batterie de 18V, et au moins un module d'interface électronique (20a ; 20b) qui est connecté à des entrées de signal de tension (22a ; 22b) du module d'interface (14a ; 14b) et qui est conçu pour traiter des signaux de tension des deux blocs-batteries (16a ; 16b, 18a ; 18b) ou plus, lesquels signaux peuvent être transmis par l'intermédiaire des entrées de signal de tension (22a ; 22b). Selon l'invention, le module électronique d'interface (20a ; 20b) comprend au moins un module de circuit (24a ; 24b) qui est conçu pour alterner entre les différentes entrées de signal de tension (22a ; 22b) du module d'interface (14a ; 14b).
PCT/EP2021/084334 2020-12-07 2021-12-06 Dispositif électronique pour outil électrique portatif WO2022122626A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020215400.7A DE102020215400A1 (de) 2020-12-07 2020-12-07 Elektronikvorrichtung für eine Handwerkzeugmaschine
DE102020215400.7 2020-12-07

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WO2022122626A1 true WO2022122626A1 (fr) 2022-06-16

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6324339B1 (en) * 1999-11-29 2001-11-27 Eveready Battery Company, Inc. Battery pack including input and output waveform modification capability
US20060103351A1 (en) * 2004-11-18 2006-05-18 Denso Corporation Battery pack manager
US20120037385A1 (en) * 2010-08-11 2012-02-16 Makita Corporation Electric power tool powered by a plurality of single-cell battery packs
WO2012026064A1 (fr) * 2010-08-25 2012-03-01 三洋電機株式会社 Circuit de détection, module de batterie, système de batterie, véhicule électrique, corps mobile, dispositif de stockage électrique, et dispositif d'alimentation électrique
EP2534744B1 (fr) 2010-02-12 2016-05-11 Makita Corporation Interface d'alimentation pour l'outil électrique alimenté par une pluralité de batteries

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6324339B1 (en) * 1999-11-29 2001-11-27 Eveready Battery Company, Inc. Battery pack including input and output waveform modification capability
US20060103351A1 (en) * 2004-11-18 2006-05-18 Denso Corporation Battery pack manager
EP2534744B1 (fr) 2010-02-12 2016-05-11 Makita Corporation Interface d'alimentation pour l'outil électrique alimenté par une pluralité de batteries
US20120037385A1 (en) * 2010-08-11 2012-02-16 Makita Corporation Electric power tool powered by a plurality of single-cell battery packs
WO2012026064A1 (fr) * 2010-08-25 2012-03-01 三洋電機株式会社 Circuit de détection, module de batterie, système de batterie, véhicule électrique, corps mobile, dispositif de stockage électrique, et dispositif d'alimentation électrique

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