EP1266725A1 - Outil électrique à accumulateur rechargeable - Google Patents

Outil électrique à accumulateur rechargeable Download PDF

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Publication number
EP1266725A1
EP1266725A1 EP01114544A EP01114544A EP1266725A1 EP 1266725 A1 EP1266725 A1 EP 1266725A1 EP 01114544 A EP01114544 A EP 01114544A EP 01114544 A EP01114544 A EP 01114544A EP 1266725 A1 EP1266725 A1 EP 1266725A1
Authority
EP
European Patent Office
Prior art keywords
capacitors
energy store
tool according
rechargeable
charged
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Withdrawn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
EP01114544A
Other languages
German (de)
English (en)
Inventor
Diethard Dipl.-Ing. Fohr
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.)
Techtronic Industries GmbH
Original Assignee
Atlas Copco Electric Tools 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 Atlas Copco Electric Tools GmbH filed Critical Atlas Copco Electric Tools GmbH
Priority to EP01114544A priority Critical patent/EP1266725A1/fr
Publication of EP1266725A1 publication Critical patent/EP1266725A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles

Definitions

  • the invention relates to an electrically operated implement, especially a power tool like a drill, a screwdriver or the like. According to the preamble of the claim 1.
  • Such tools also known as cordless screwdrivers, have an electric drive motor for driving a Tool holder in which the desired work tool is inserted.
  • the drive motor is via a switch connectable to a rechargeable energy storage device, the the implement is held interchangeably.
  • the energy storage - usually a battery pack - is used regularly by the working device charged separately in a charging station, which is usually the case Periods of 10 to 12 hours are necessary.
  • Fast charging capability Energy stores have reduced charging times of 15 Minutes to 1 hour.
  • Usual battery packs especially NiCd cells, have a permanent one Self-discharge, so that the capacity with increasing Storage time decreases. In the hobby area, this usually has the consequence that whenever the tool is to be used, the user must determine that the energy storage is discharged and must first be loaded for the work to be performed. As a result, there is usually no need to use the power tool A period of 15 minutes to 1 hour is possible.
  • the invention has for its object an electrically operated Train the implement in such a way that even when empty Energy storage within the shortest possible time using the Working tool is possible.
  • the main idea of the invention is to provide high performance Capacitors as quickly rechargeable energy storage, e.g. as To use the battery pack. Because capacitors with high in a short time Charging currents can be charged and are considerable after just a few seconds Have stored amount of energy with the working device work is started at short notice.
  • the Capacitor performance is sufficient to perform several screwing operations. For example about five to ten screwing operations with the Energy storage from capacitors according to the invention properly be carried out before reloading is necessary. There this reloading is in the seconds range, is in the hobby area the interruption of work for a possible reloading readily acceptable.
  • the hobby craftsman is given the opportunity, even after long rest phase of the power tool and the associated Short-term discharge of the cells of a battery pack Take up work without long charging phases of the battery pack must accept.
  • capacitors are connected in parallel to each other, high peak currents possible, while continuous currents of 20 to 30 A can be achieved.
  • a series connection of capacitors connected in parallel with a nominal voltage of The output voltage can be 2.3 to 2.5 V e.g. to 12 V or 24 V can be increased.
  • the energy storage from capacitors is advantageous against an energy store made of rechargeable cells such as NiCd batteries, Li batteries, NiMH batteries can be used.
  • the energy store from rechargeable cells and the energy storage from capacitors has the same geometry a connection, e.g. a contacting insert shoe.
  • High-performance capacitors in addition to conventional battery cells in one Arrange housing and electrically connect such that first the capacitors and then the battery cells become.
  • the capacitors can also be used during a break are charged via the battery cells.
  • the energy storage devices made of rechargeable batteries are advantageous Cells and the energy storage from capacitors alternately to charge in a same charger. It can also be two Charging slots are provided so that during charging and Charging the energy storage from capacitors permanently Energy storage is charged from rechargeable cells. On this way, the charging period of the usually used Energy storage from rechargeable cells with the energy storage from capacitors are bridged.
  • the capacitors In order to achieve a high power density, the capacitors with up to 30%, preferably with 20% above their nominal voltage charged. The stored amount of charge is increased.
  • the electrically operated implement shown in Fig. 1 is a cordless screwdriver 1. It has an essentially pistol-like Basic shape with a handle 3 and one across Handle 3 lying housing 2, in which an electric drive motor 7 is arranged.
  • the electric drive motor 7 expediently drives a tool holder 4 via a gear, the bit holder for tools in the embodiment shown 8 is.
  • a switch 5 is provided in the housing of the handle 3, via which the electric motor 7 is releasably attached to the handle Energy storage 6 is to be connected.
  • the energy store 6 consists of a housing that on its side facing the handle 3, a plug-in shoe 9 has in the free end 10 of the handle form-fitting is held in place. In the locking position shown in Fig. 1 is the energy storage 6 in the insert shoe 9 and arranged in the free end 10 of the handle 3 electrical contacts and connected to the drive motor 7 via the switch 5.
  • Fig. 1 there are a large number in the housing of the energy store 6 of rechargeable cells 11 arranged as dashed lines shown. These individual cells 11 are electrically interconnected connected to a battery pack of the desired voltage and the desired performance.
  • the cells 11 can stand upright in the housing of the energy store 6 be arranged, with its longitudinal axis 12 then approximately to Longitudinal axis of the handle 3 is aligned. Expediently also be a horizontal arrangement of the capacitors.
  • the rechargeable cells can be NiCd cells, Li cells or be NiMH cells.
  • Fig. 2 is in place of the energy store 6 in Fig. 1 or alternately for this an energy storage device 20 is provided, the housing 21 of which is the same Size as the housing of the energy storage 6 in Fig. 1.
  • the housing 21 on its Handle 3 facing flat side on a plug-in shoe 9, in the free end 10 of the handle 3 while closing electrical Contacts can be snapped into place.
  • the housing 21 the energy store 20 is thus captively fixed, but detachable held on the handle 3 of the implement 1.
  • a capacitor can have an internal voltage from e.g. 2.3 V to 2.5 V can be charged, with a single capacitor has a capacitance of more than 50 farads having. 100 Farad is an advantageous size.
  • a capacitor can have an internal voltage from e.g. 2.3 V to 2.5 V can be charged, with a single capacitor has a capacitance of more than 50 farads having. 100 Farad is an advantageous size.
  • To achieve a continuous current capability of 20 to 30 A and preferably a peak load of up to 80 A are several in particular identical capacitors connected in parallel.
  • the Capacitors 22 with a capacitance of more than 50 F are so dimensioned that they the electrical energy requirement of the drive motor 7 cover for several screw cycles.
  • the design is made so that about five screwing cycles, preferably up to ten screw cycles with screws 5x40 mm in Softwood are possible. It is also used for operation a battery light possible, operating times of 5 minutes and more are reachable.
  • the energy store 20 in less than 1 minute, preferably rechargeable within 10 to 30 seconds. This can be done in an adapted charger happen, expediently the Energy storage 6 from rechargeable cells 11 and Energy storage 20 from capacitors 22 preferably alternately can be charged in the same charger. It can be expedient to provide a charger with two charging slots, which are each electrically connected to the energy store to be charged 6 and 20 are adapted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP01114544A 2001-06-16 2001-06-16 Outil électrique à accumulateur rechargeable Withdrawn EP1266725A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01114544A EP1266725A1 (fr) 2001-06-16 2001-06-16 Outil électrique à accumulateur rechargeable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01114544A EP1266725A1 (fr) 2001-06-16 2001-06-16 Outil électrique à accumulateur rechargeable

Publications (1)

Publication Number Publication Date
EP1266725A1 true EP1266725A1 (fr) 2002-12-18

Family

ID=8177735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01114544A Withdrawn EP1266725A1 (fr) 2001-06-16 2001-06-16 Outil électrique à accumulateur rechargeable

Country Status (1)

Country Link
EP (1) EP1266725A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005039829A1 (fr) * 2003-09-29 2005-05-06 Robert Bosch Gmbh Visseuse a batterie
WO2005039833A1 (fr) * 2003-09-29 2005-05-06 Robert Bosch Gmbh Visseuse a batterie
GB2420029A (en) * 2003-11-19 2006-05-10 Milwaukee Electric Tool Corp Battery pack for a cordless power tool
WO2006081894A1 (fr) * 2005-02-07 2006-08-10 Robert Bosch Gmbh Machine-outil manuelle electrique
GB2434705A (en) * 2002-11-22 2007-08-01 Milwaukee Electric Tool Corp Battery pack for a cordless power tool
US7253585B2 (en) 2002-11-22 2007-08-07 Milwaukee Electric Tool Corporation Battery pack
US7714538B2 (en) 2002-11-22 2010-05-11 Milwaukee Electric Tool Corporation Battery pack
US8310177B2 (en) 2008-04-14 2012-11-13 Stanley Black & Decker, Inc. Battery management system for a cordless tool
US9406915B2 (en) 2014-05-18 2016-08-02 Black & Decker, Inc. Power tool system
CN107443321A (zh) * 2016-05-13 2017-12-08 株式会社牧田 电动工具
US9893384B2 (en) 2014-05-18 2018-02-13 Black & Decker Inc. Transport system for convertible battery pack
US11196080B2 (en) 2002-11-22 2021-12-07 Milwaukee Electric Tool Corporation Method and system for battery protection
US11211664B2 (en) 2016-12-23 2021-12-28 Black & Decker Inc. Cordless power tool system
US11469608B2 (en) 2002-11-22 2022-10-11 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677078A (en) * 1995-09-27 1997-10-14 Bolder Technologies Corp. Method and apparatus for assembling electrochemical cell using elastomeric sleeve
WO2000041253A1 (fr) * 1999-01-08 2000-07-13 Danionics A/S Structure de piles electrochimiques et plaquette a circuit imprime
WO2001005559A2 (fr) * 1999-07-16 2001-01-25 Gass Stephen F Outils electriques ameliores

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677078A (en) * 1995-09-27 1997-10-14 Bolder Technologies Corp. Method and apparatus for assembling electrochemical cell using elastomeric sleeve
WO2000041253A1 (fr) * 1999-01-08 2000-07-13 Danionics A/S Structure de piles electrochimiques et plaquette a circuit imprime
WO2001005559A2 (fr) * 1999-07-16 2001-01-25 Gass Stephen F Outils electriques ameliores

Cited By (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10566810B2 (en) 2002-11-22 2020-02-18 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
GB2434704B (en) * 2002-11-22 2007-09-12 Milwaukee Electric Tool Corp Method and System for Battery Charging
US11837694B2 (en) 2002-11-22 2023-12-05 Milwaukee Electric Tool Corporation Lithium-based battery pack
US11682910B2 (en) 2002-11-22 2023-06-20 Milwaukee Electric Tool Corporation Method of operating a lithium-based battery pack for a hand held power tool
US11469608B2 (en) 2002-11-22 2022-10-11 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
US11196080B2 (en) 2002-11-22 2021-12-07 Milwaukee Electric Tool Corporation Method and system for battery protection
US10998586B2 (en) 2002-11-22 2021-05-04 Milwaukee Electric Tool Corporation Lithium-based battery pack including a balancing circuit
US10886762B2 (en) 2002-11-22 2021-01-05 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
US10431857B2 (en) 2002-11-22 2019-10-01 Milwaukee Electric Tool Corporation Lithium-based battery pack
GB2434705A (en) * 2002-11-22 2007-08-01 Milwaukee Electric Tool Corp Battery pack for a cordless power tool
GB2434704A (en) * 2002-11-22 2007-08-01 Milwaukee Electric Tool Corp Battery pack for a cordless power tool
US7253585B2 (en) 2002-11-22 2007-08-07 Milwaukee Electric Tool Corporation Battery pack
GB2434705B (en) * 2002-11-22 2007-09-12 Milwaukee Electric Tool Corp Method and System for Battery Charging
US10218194B2 (en) 2002-11-22 2019-02-26 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
US10141614B2 (en) 2002-11-22 2018-11-27 Milwaukee Electric Tool Corporation Battery pack
US9379569B2 (en) 2002-11-22 2016-06-28 Milwaukee Electric Tool Corporation Lithium-battery pack for a hand held power tool
US7554290B2 (en) 2002-11-22 2009-06-30 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand-held power tool
US7557535B2 (en) 2002-11-22 2009-07-07 Milwaukee Electric Tool Corporation Lithium-based battery for a hand held power tool
US7714538B2 (en) 2002-11-22 2010-05-11 Milwaukee Electric Tool Corporation Battery pack
US7944173B2 (en) 2002-11-22 2011-05-17 Milwaukee Electric Tool Corporation Lithium-based battery pack for a high current draw, hand held power tool
US9793583B2 (en) 2002-11-22 2017-10-17 Milwaukee Electric Tool Corporation Lithium-based battery pack
US7999510B2 (en) 2002-11-22 2011-08-16 Milwaukee Electric Tool Corporation Lithium-based battery pack for a high current draw, hand held power tool
US8154249B2 (en) 2002-11-22 2012-04-10 Milwaukee Electric Tool Corporation Battery pack
US8207702B2 (en) 2002-11-22 2012-06-26 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
US9673648B2 (en) 2002-11-22 2017-06-06 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
US8269459B2 (en) 2002-11-22 2012-09-18 Milwaukee Electric Tool Corporation Lithium-based battery pack for a high current draw, hand held power tool
US8450971B2 (en) 2002-11-22 2013-05-28 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
US8487585B2 (en) 2002-11-22 2013-07-16 Milwaukee Electric Tool Corporation Battery pack
US9018903B2 (en) 2002-11-22 2015-04-28 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
US9048515B2 (en) 2002-11-22 2015-06-02 Milwaukee Electric Tool Corporation Battery pack
US9941718B2 (en) 2002-11-22 2018-04-10 Milwaukee Electric Tool Corporation Lithium-based battery pack for a hand held power tool
US9368842B2 (en) 2002-11-22 2016-06-14 Milwaukee Electric Tool Corporation Battery pack
US7456608B2 (en) 2003-09-29 2008-11-25 Robert Bosch Gmbh Battery-driven screwdriver
WO2005039833A1 (fr) * 2003-09-29 2005-05-06 Robert Bosch Gmbh Visseuse a batterie
US7134364B2 (en) 2003-09-29 2006-11-14 Robert Bosch Gmbh Battery-driven screwdriver
WO2005039829A1 (fr) * 2003-09-29 2005-05-06 Robert Bosch Gmbh Visseuse a batterie
CN1860000B (zh) * 2003-09-29 2011-08-03 罗伯特·博世有限公司 可充电式旋拧/钻孔工具
GB2420030A (en) * 2003-11-19 2006-05-10 Milwaukee Electric Tool Corp Battey pack for a cordless power tool
GB2420029A (en) * 2003-11-19 2006-05-10 Milwaukee Electric Tool Corp Battery pack for a cordless power tool
GB2420032A (en) * 2003-11-19 2006-05-10 Milwaukee Electric Tool Corp Battery pack for a cordless power tool
JP2008086200A (ja) * 2003-11-19 2008-04-10 Milwaukee Electric Tool Corp 電池を充電する方法およびシステム
GB2420027A (en) * 2003-11-19 2006-05-10 Milwaukee Electric Tool Corp Battery pack for a cordless power tool
GB2420028A (en) * 2003-11-19 2006-05-10 Milwaukee Electric Tool Corp Battery pack for a cordless power tool
WO2006081894A1 (fr) * 2005-02-07 2006-08-10 Robert Bosch Gmbh Machine-outil manuelle electrique
US8310177B2 (en) 2008-04-14 2012-11-13 Stanley Black & Decker, Inc. Battery management system for a cordless tool
USRE45897E1 (en) 2008-04-14 2016-02-23 Stanley Black & Decker, Inc. Battery management system for a cordless tool
US10541639B2 (en) 2014-05-18 2020-01-21 Black & Decker, Inc. Cordless power tool system
US10972041B2 (en) 2014-05-18 2021-04-06 Black & Decker, Inc. Battery pack and battery charger system
US10333454B2 (en) 2014-05-18 2019-06-25 Black & Decker Inc. Power tool having a universal motor capable of being powered by AC or DC power supply
US10291173B2 (en) 2014-05-18 2019-05-14 Black & Decker Inc. Power tool powered by power supplies having different rated voltages
US10250178B2 (en) 2014-05-18 2019-04-02 Black & Decker Inc. Cordless power tool system
US9583793B2 (en) 2014-05-18 2017-02-28 Black & Decker Inc. Power tool system
US9871484B2 (en) 2014-05-18 2018-01-16 Black & Decker Inc. Cordless power tool system
US10608574B2 (en) 2014-05-18 2020-03-31 Black And Decker, Inc. Convertible battery pack
US10615733B2 (en) 2014-05-18 2020-04-07 Black & Decker Inc. Power tool having a brushless motor capable of being powered by AC or DC power supplies
US10840559B2 (en) 2014-05-18 2020-11-17 Black & Decker Inc. Transport system for convertible battery pack
US10236819B2 (en) 2014-05-18 2019-03-19 Black & Decker Inc. Multi-voltage battery pack
US10333453B2 (en) 2014-05-18 2019-06-25 Black & Decker Inc. Power tool having a universal motor capable of being powered by AC or DC power supply
US9406915B2 (en) 2014-05-18 2016-08-02 Black & Decker, Inc. Power tool system
US11005412B2 (en) 2014-05-18 2021-05-11 Black & Decker Inc. Battery pack and battery charger system
US11005411B2 (en) 2014-05-18 2021-05-11 Black & Decker Inc. Battery pack and battery charger system
US11152886B2 (en) 2014-05-18 2021-10-19 Black & Decker Inc. Battery pack and battery charger system
US10177701B2 (en) 2014-05-18 2019-01-08 Black & Decker, Inc. Cordless power tool system
US9893384B2 (en) 2014-05-18 2018-02-13 Black & Decker Inc. Transport system for convertible battery pack
US10361651B2 (en) 2014-05-18 2019-07-23 Black & Decker Inc. Cordless power tool system
CN107443321A (zh) * 2016-05-13 2017-12-08 株式会社牧田 电动工具
CN107443321B (zh) * 2016-05-13 2022-01-04 株式会社牧田 电动工具
US11211664B2 (en) 2016-12-23 2021-12-28 Black & Decker Inc. Cordless power tool system

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