EP2686935A1 - Appareil de charge mobile - Google Patents

Appareil de charge mobile

Info

Publication number
EP2686935A1
EP2686935A1 EP12706224.8A EP12706224A EP2686935A1 EP 2686935 A1 EP2686935 A1 EP 2686935A1 EP 12706224 A EP12706224 A EP 12706224A EP 2686935 A1 EP2686935 A1 EP 2686935A1
Authority
EP
European Patent Office
Prior art keywords
mobile charger
energy storage
storage device
electrically operable
tool
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12706224.8A
Other languages
German (de)
English (en)
Inventor
Klaus Bertsch
Stefan Mayer
Peter Roth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP2686935A1 publication Critical patent/EP2686935A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging

Definitions

  • the invention relates to a mobile charger for at least one electrically operable power tool that includes at least one battery that is chargeable by the mobile charger.
  • the invention further relates to a charging system for at least two electrically operable power tools, each comprising at least one battery which is chargeable by such a mobile charger.
  • the invention also relates to a method for operating such a charging system.
  • German Offenlegungsschrift DE 33 05 224 A1 discloses an on-board battery charger for charging the main battery of an electric-storage road vehicle with a capacitive buffer.
  • the object of the invention is to further simplify the operation of an electrically operable power tool comprising at least one rechargeable battery which can be charged by a mobile charger.
  • a mobile charger for at least one electrically operable power tool, comprising at least one rechargeable battery, which is chargeable by the mobile charger, characterized in that the mobile charger comprises an energy storage device for storing electrical energy that can be used to to recharge the battery of the electrically operable power tool net.
  • Mobile in connection with the charger means that the charger alone is portable or portable, regardless of other devices or together with other devices. Battery is a short form of accumulator. In the context of the invention, however, other power storage devices such as capacitors can be charged by the mobile charger.
  • Off-line means that the mobile charger does not need to be connected to a power supply network to charge the battery of the electrically operable power tool.
  • the energy storage device is preferably designed so large that the battery can be charged at least once, possibly even several times, without the mobile charger must be connected to a power supply network. It is also possible to charge several, possibly different, batteries from the energy storage device of the mobile charger.
  • the tool devices are preferably also designed to be mobile.
  • a preferred embodiment of the mobile charger is characterized in that the mobile charger has an interface for contactless and / or wireless energy transfer between the energy storage device and the battery of the electrically operable power tool. According to a further embodiment, the mobile charger alternatively or additionally on an interface for contact-based energy transfer between the energy storage device and the battery of the electrically operable power tool.
  • the interface is preferably designed as a high current interface. The contactless and / or wireless energy transmission may contribute to increase the safety when charging the battery.
  • the interface for contactless and / or wireless energy transmission is designed so that currents of more than 100 amperes can be transmitted. This allows very short charging times of the batteries.
  • a further preferred embodiment of the mobile charger is characterized in that the interface for contactless and / or wireless energy transmission is assigned a control interface. The control interface ensures that energy transfer can take place only if the battery is arranged correctly relative to the mobile charger, for example plugged or plugged on and / or locked.
  • the mobile charger has a power connector for charging the Energy storage device in the mobile charger has.
  • the power connector includes, for example, a power cord with a power plug, but can also be designed wirelessly.
  • the charger according to the invention can be operated via the mains connection as a conventional charger to charge the battery or multiple batteries from a power supply network.
  • the inventive design of the mobile charger an additional charging option is provided from the energy storage device, which is integrated into the mobile charger.
  • Another preferred embodiment of the mobile charger is characterized in that the mobile charger is integrated in a tool box, a backpack or a belt. This will / facilitate the handling and / or transportation of the mobile charger.
  • the mobile charger comprises a photovoltaic panel connected to the energy storage device in the mobile charger for energy transfer.
  • the energy storage device integrated in the mobile charger can also be charged via the photovoltaic panel, even if the mobile charger is not connected to a power supply network.
  • the mobile charger has a power storage device upstream converter and / or a charge storage device downstream of the energy storage device.
  • Upstream in connection with the converter means that the converter is connected between a power supply network and the energy storage device.
  • Downstream in connection with the charge controller means that the charge controller is connected between the energy storage device and the interface to the battery.
  • the converter serves to remove electrical energy from a connected electrical power supply network, to convert and to charge the energy storage device in the mobile charger.
  • About the charge controller ensures that the electrical energy stored in the electrical energy storage device is discharged controlled to the battery.
  • the above object is alternatively or additionally characterized solved that the batteries of the tool devices interfaces for contactless and / or wireless energy transfer between the energy storage device and the batteries and / or contactless and / or wireless energy transfer between the batteries of the electrically operated tool devices.
  • the rechargeable batteries of the tool devices alternatively or additionally have an interface for the contact-type energy transfer between the energy storage device and the rechargeable battery and / or between the rechargeable batteries of the electrically operated tool devices. Due to the contactless and / or wireless energy transmission, the safety during operation of the charging system may be increased.
  • the preferably removable batteries can be charged in particular contactless both by the energy storage device and with each other. This makes it possible to charge the battery of a more heavily discharged tooling device by the battery of another tooling device that is not yet discharged so heavily. As a result, the energy of several available tool devices can be completely consumed even if only one tool device is used.
  • a preferred embodiment of the charging system is characterized in that the mobile charger and / or the batteries of the electrically operable power tool communication interfaces for contactless and / or wireless data transmission between the energy storage device and the batteries, and / or for contactless and / or wireless data transmission between the Have batteries of electrically operated tool devices.
  • Consumption data can be exchanged between the energy storage device and the rechargeable batteries as well as between the rechargeable batteries or communicated to a controller which is integrated into the mobile charger via the communication interfaces.
  • service data can be read out via the communication interfaces and / or software updates can be made.
  • Another preferred exemplary embodiment of the charging system is characterized in that the batteries of the electrically operable tool devices have interfaces for contactless and / or wireless energy transfer between the batteries and the electrically operated tool devices. As a result, the safety during operation of the charging system according to the invention is further increased.
  • Another preferred embodiment of the charging system is characterized in that the interfaces for contactless and / or wireless Power transmission and the communication interfaces for contactless and / or wireless data transmission are each combined in a multifunction interface.
  • the communication interfaces can be integrated, for example, by modulation or attenuation of an electromagnetic field used for energy transmission in the interfaces for energy transmission.
  • Another preferred exemplary embodiment of the charging system is characterized in that the batteries of the electrically operable tool devices are smaller and / or lighter than conventional rechargeable batteries of electrically operated tool devices. Due to the design of the charging system according to the invention, the weight and the size of the electrically operated tool devices can be reduced.
  • a further preferred exemplary embodiment of the charging system is characterized in that the electrically operable tool devices comprise hand-held power tools, such as a drill, a bolt-setting device, a nailer, a hand-held tacker or a measuring device.
  • the tool tools mentioned are preferably used in the construction industry, where the use of mains operated devices is critical in terms of operational safety.
  • the invention further relates to a method for operating a charging system described above.
  • the charging system according to the invention it is possible, for example, for a user who only uses a tool device for a few minutes at a work rhythm and the device does not use it for a few minutes to use a small, lightweight battery which only uses the tool device for operate for a few minutes and recharge in idle time on the mobile charger.
  • FIG. 1 shows a greatly simplified representation of a charging system according to the invention with a mobile charger and three electrically operable power tools according to a first embodiment
  • Figure 2 shows a mobile charger with a battery according to another
  • Embodiment; 3 shows a tool case, in which a mobile charger, as shown for example in Figures 1 and 2, is integrated, and
  • Figure 4 shows a craftsman with a belt to which a mobile charger and a battery are attached, when working on a pole.
  • a charging system 1 with a mobile charger 5 is shown greatly simplified.
  • a similar mobile charger 45 is also shown as greatly simplified in Figure 1.
  • the mobile charger 5; 45 can via a power cord 6; 46 and a power plug 7; 47 are connected to an electrical power grid.
  • a housing 8; 48 of the mobile charger 5; 45 is an energy storage device 10 according to an essential aspect of the invention; 50 arranged, can be stored in the electrical energy.
  • the electric power is supplied, for example, from the electric power supply network when the mobile charger 5; 45 via the power cord 6; 46 and the power plug 7; 47 is connected to the electrical power grid.
  • a transducer 12; 52 is between the power cord 6; 46 and the energy storage device 10; 50 switched.
  • the converter 12; 52 serves to convert electrical energy taken from the electrical power supply network.
  • the converted electrical energy is then stored in the energy storage device 10; 50 stored and can be dispensed as needed.
  • the mobile charger 5 illustrated in FIG. 1 comprises a controller 15 with a control device and a data memory.
  • the mobile charger 5 further includes an interface 20, which is also referred to as a multifunction interface. Both data and electrical energy can be transmitted wirelessly or contactlessly via the interface 20.
  • the charging system 1 shown in Figure 1 further comprises mobile, electrically operable power tools 25, 26 and 28, which are each equipped with a removable battery.
  • the tool devices 25, 26 and 28 further each include an interface 31, 32, the wireless or contactless energy transmission and a wireless or contactless data transmission allows.
  • the interfaces 31, 32 are therefore also referred to as multifunction interfaces.
  • Dashed arrows indicate in FIG. 1 that the batteries of the tool devices 25, 26 and 28 can be charged contactlessly via the mobile charger 5.
  • the mobile charger 5 can be connected via the power cord 6 to the electrical power grid.
  • the charging of the batteries of the tool devices 25, 26 and 28 but also via the integrated in the mobile device e energy storage device 10 can be done without the mobile charger 5 is connected to the electrical power grid.
  • the illustrated in Figure 2 mobile charger 45 includes a charge controller 54, which serves to supply a battery 56 as needed with electrical energy from the energy storage device 50, which is integrated into the mobile charger 45.
  • the battery 46 can be supplied via an interface 60 with electrical energy from the energy storage device 50.
  • the battery 56 is relatively lightweight and can be charged within a recharge time of less than three minutes from the energy storage device 50.
  • the battery 56 is preferably designed as a power battery with an energy content of more than 450 kJ.
  • Charging the battery 56 via the electrical power grid could cause disturbances in the electrical power grid because, for example, electrical fuses would become overloaded.
  • the energy storage device 50 according to the invention makes it possible to charge even batteries with a high energy content quickly without disturbances in the power supply network occur.
  • An arrow 61 indicates that the converter 52 draws electrical energy from the electrical power supply network connected via the power cable 47 and charges the electrical energy storage device 50 in the mobile charger 45 over a mean time range of, for example, 5 to 180 minutes. Once the energy storage device 50 is filled, the battery 56 can be charged. By arrows 62 and 63 it is indicated that the electrical energy from the energy storage device 50 via the charge controller 54 and the interface 60 is supplied to the battery 56. By a double arrow 64 between the charge controller 54 and the interface 60 is indicated that the electrical energy from the energy storage device 50 is not released uncontrollably.
  • a communication interface integrated in the interface 60 ensures that the electrical energy is only transferred from the energy storage device 50 to the battery 56 when the battery 56 is correctly attached to the mobile charger 45. In this case, the interface 60 is designed so that currents of over 100 amperes can be transmitted in the energy transfer.
  • FIG. 3 shows in simplified form a tool case 70 with a carrying handle.
  • the tool case 70 contains two rechargeable batteries 71, 72, with which a drill 73, which is likewise contained in the tool case 70, can be operated.
  • a mobile charger 75 is incorporated in the tool case 70, as shown in FIGS. 1 and 2, for example.
  • the mobile charger 75 includes an energy storage device 50 that can be charged via a power cord 76 and a power plug 77 from an external power supply network.
  • the battery 71, 72 can be charged from the electrical power supply network as well as with conventional chargers.
  • the energy storage device integrated in the mobile charger 75 also makes it possible to recharge the rechargeable batteries 71 independently of the electrical power supply network, ie, power-free, as required.
  • a photovoltaic panel 78 is attached to the tool case 70. Via the photovoltaic panel 78, the energy storage device integrated in the mobile charger 75 can also be charged when the tool case 70 or the mobile charger 75 is not connected to the external power supply network. As a result, it is possible to work with the drill 73 even longer independently of the mains.
  • connection between the batteries 71, 72 and the mobile charger 75 can be made via contacts outside or inside the tool case 70.
  • the connection between However, the batteries 71, 72 and the mobile charger 75 can also be wireless or contactless.
  • FIG. 4 shows a craftsman 90 who carries out repairs to lines 94, 95 on a line mast 92.
  • the craftsman 90 carries a belt 100 with tools.
  • a mobile charger 105 and a battery 106 are mounted for an electrically operable tool.
  • the mobile charger 105 is configured as the mobile chargers 5 shown in Figs. 1 and 2; 45.
  • the battery 106 can be charged independently of the mains at work or assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un appareil de charge mobile pour au moins une machine-outil (25, 26, 28) fonctionnant à l'électricité et comprenant au moins un accumulateur (56) qui peut être chargé par l'appareil de charge (5) mobile. Pour simplifier le fonctionnement d'une machine-outil fonctionnant à l'électricité, l'appareil de charge (5) mobile comprend un dispositif de stockage d'énergie (10) qui sert à stocker de l'énergie électrique et peut être utilisé pour charger hors réseau l'accumulateur (56) de la machine-outil (25, 26, 28) fonctionnant à l'électricité.
EP12706224.8A 2011-03-16 2012-02-16 Appareil de charge mobile Withdrawn EP2686935A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011005646A DE102011005646A1 (de) 2011-03-16 2011-03-16 Mobiles Ladegerät
PCT/EP2012/052638 WO2012123210A1 (fr) 2011-03-16 2012-02-16 Appareil de charge mobile

Publications (1)

Publication Number Publication Date
EP2686935A1 true EP2686935A1 (fr) 2014-01-22

Family

ID=45771795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12706224.8A Withdrawn EP2686935A1 (fr) 2011-03-16 2012-02-16 Appareil de charge mobile

Country Status (4)

Country Link
US (1) US20140103858A1 (fr)
EP (1) EP2686935A1 (fr)
DE (1) DE102011005646A1 (fr)
WO (1) WO2012123210A1 (fr)

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JP5663353B2 (ja) 2010-10-27 2015-02-04 株式会社マキタ 電動工具システム
JP5593200B2 (ja) 2010-10-27 2014-09-17 株式会社マキタ 電動工具システム
US10124455B2 (en) 2011-07-24 2018-11-13 Makita Corporation Theft-deterrence system for power tool system, and adapter and method therefor
EP2735075B1 (fr) 2011-07-24 2016-06-01 Makita Corporation Chargeur pour outil électrique portatif, système d'outil électrique et procédé de charge d'une batterie d'outil électrique
JP6106155B2 (ja) 2011-07-24 2017-03-29 株式会社マキタ 携帯型バッテリパック充電システム、バッテリパックを充電する方法、及びそのためのアダプタ
US9553471B2 (en) * 2013-03-15 2017-01-24 Bosch Automotive Service Solutions Inc. Method and system for wirelessly charge a diagnostic tool
US9435563B2 (en) * 2014-04-10 2016-09-06 Elinor Einhorn Rechargeable backup electric heating system for power outages
DE102016110462A1 (de) 2016-06-07 2017-12-07 Sartorius Stedim Biotech Gmbh Serviceeinheit und Verfahren zur Überwachnung und Dokumentation von Wartungsarbeiten
US11264836B2 (en) 2017-05-02 2022-03-01 Rabia AHMAD MUGHAL Wireless kinetic charger
US10651664B2 (en) 2017-08-18 2020-05-12 Black & Decker Inc. Portable battery charger system
JP2020010580A (ja) 2018-07-12 2020-01-16 株式会社マキタ 充放電装置
DE102018220674A1 (de) 2018-11-30 2020-06-04 Robert Bosch Gmbh Energieversorgungsvorrichtung
FR3102384B1 (fr) * 2019-10-24 2021-10-15 Renault Georges Ets Dispositif industriel de recharge d’un outil électromécanique lorsque celui-ci est fixé à un support

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WO1998039831A1 (fr) * 1997-03-05 1998-09-11 P.M.G. S.N.C. Dei F. Lli Paganini Mauro E Giorgio Appareil portatif pour recharger des batteries dans des perceuses, des visseuses, des outils electriques generalement alimentes par des batteries internes
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Also Published As

Publication number Publication date
WO2012123210A1 (fr) 2012-09-20
US20140103858A1 (en) 2014-04-17
DE102011005646A1 (de) 2012-09-20

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