WO2009033865A1 - Chargeur à deux modules - Google Patents

Chargeur à deux modules Download PDF

Info

Publication number
WO2009033865A1
WO2009033865A1 PCT/EP2008/059566 EP2008059566W WO2009033865A1 WO 2009033865 A1 WO2009033865 A1 WO 2009033865A1 EP 2008059566 W EP2008059566 W EP 2008059566W WO 2009033865 A1 WO2009033865 A1 WO 2009033865A1
Authority
WO
WIPO (PCT)
Prior art keywords
module
battery pack
charger
contact elements
receiving
Prior art date
Application number
PCT/EP2008/059566
Other languages
German (de)
English (en)
Inventor
Marcin Rejman
Josef Baumgartner
Thorsten Seidel
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 WO2009033865A1 publication Critical patent/WO2009033865A1/fr

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
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries

Definitions

  • the invention relates to a charger according to the preamble of claim 1.
  • Chargers for charging battery packs for electrical equipment have a receiving shaft into which either the Kirakkupack or the electrical device with integrated battery pack is inserted or inserted to load the battery pack.
  • electrical contact elements are provided in the region of the receiving shaft, which contact with mating contact elements on the battery pack to be charged.
  • the receiving shaft with the electrical contact elements forms the charger battery pack interface. This is usually adapted so that only a certain type of battery pack can be inserted into the receiving shaft and thereby contact the electrical contact elements each other.
  • the charger battery pack interface is usually designed specifically for each type of charger and therefore not or only partially suitable to be used for other types of chargers.
  • the charger battery pack interface places high demands on dimensional accuracy and on electromechanical properties such as stability, secure contacting, freedom from backlash, reliability, dirt resistance and the like.
  • several functions and requirements are combined on a few components of the charger battery pack interface, so that the charger battery pack interface has a high functional integration density.
  • the invention is based on a charger for at least one rechargeable battery pack with a housing, which comprises means for receiving at least one battery pack and at least two contact elements for supplying power to the battery pack.
  • the Means for receiving a battery pack is preferably a receiving slot in which the rechargeable battery pack is inserted or inserted. Also, two or more receiving means may be provided to charge two or more battery packs simultaneously.
  • the receiving means and the contact elements form the charger battery pack interface (hereinafter also referred to as interface).
  • the charger consists of at least two modules, wherein the housing form a first module and the receiving means and the contact elements form a second module.
  • the charger battery pack interface forms an independent module.
  • This not only has the advantage that the charger can be modularly assembled, which simplifies the installation of the charger.
  • a universally applicable interface can be created, which can be installed in a variety of chargers. So the interface does not have to be redesigned for each type of charger.
  • the housing preferably has a recess for receiving the second module.
  • the second module is connectable to the first module by being inserted into the recess and attachable to the housing.
  • the two modules can be connected to each other in a variety of ways. They may for example be screwed together or positively, e.g. be connected by means of locking elements. Also a cohesive connection by gluing, welding o.a. is possible.
  • the second module is designed replaceable. This means that for a charger two or more different charger battery pack interfaces are provided as modules that can be replaced by an operator of the charger. For this purpose, the first module with the second module is releasably connected.
  • the second module which forms the interface, can be provided with further elements.
  • the interface preferably comprises at least one further contact element, which contacts with a corresponding mating contact element of the battery pack of an inserted into the receiving means battery pack.
  • This and other contact elements serve for example, the data transmission.
  • the contact elements provided on the charger can be identical or different. They are each interconnected according to their function, ie voltage supply or data exchange.
  • the contact elements may be designed as Bermmrome or as sliding contact elements. Contact contact elements and sliding contact elements are known per se from the prior art. Furthermore, the contact elements may be resilient. Spring contact elements (contact springs) are also known per se from the prior art.
  • the second module preferably comprises means for mechanical coding, which interact with corresponding means on the battery pack.
  • means for mechanical coding which interact with corresponding means on the battery pack.
  • grooves, ribs, pins and other projections and recesses are suitable as mechanical coding means.
  • the means for mechanical coding to prevent a battery pack is introduced into the interface of the charger, for which the charger is not suitable, for example, because the battery pack based on lithium-ion technology and the charger is designed for nickel metal hydride battery packs.
  • Chargers are generally designed to charge a specific type of battery pack. Therefore, it is important that a battery pack can not be plugged into the charging means of the charger if the charger is not designed for the battery pack.
  • the second module preferably comprises means for guiding the battery pack in the receiving means. Guiding means cause the battery pack to be easily and properly inserted in the receiving means, e.g. a receiving shaft, is insertable.
  • the guide means provided on the second module cooperate with corresponding means on the battery pack.
  • Corresponding guide means may e.g. a guide rib and a guide groove.
  • additional means for mechanical coupling may be provided on the second module, so that the battery pack can be safely received in the receiving means of the second module. This can be realized, for example, by corresponding mechanical coupling means on the second module and the battery pack, which mesh with one another during insertion of the battery pack into the receiving means in such a way that positive locking is effected.
  • One of the corresponding mechanical coupling means may also be a spring-loaded latch.
  • the second module comprises at least one fan.
  • the fan is used, for example, to cool a battery pack during the charging process. With the help of the fan, cooling air is added to a coolable battery pack that is in the charger - A -
  • the fan is attached to the second module, this has the advantage that the air path is considerably shorter than in the case of a charger in which the fan is accommodated at a different location in the housing.
  • the fan is preferably attached to the underside of the receiving means, e.g. screwed.
  • the second module preferably further comprises at least one air inlet opening and / or one air outlet opening. Is an opening in the second module for the
  • Air inlet provided, the fan sucks air through this air inlet opening and blows the air through the charger and / or a coolable battery pack.
  • an air outlet opening is provided in the housing of the charger and / or in the housing of the battery pack.
  • an opening may be provided in the second module for the air outlet, via which the fan blows air from the inside.
  • the housing of the charger and / or the battery pack on an air inlet opening, via which the fan sucks air from the outside.
  • a filter or a ventilation grille or ventilation slots is preferably attached. This prevents coarse dirt and dust particles from entering the charger and possibly damaging the fan.
  • the second module comprises at least one water outlet opening.
  • the receiving means of the second module is preferably formed in the form of a recess into which the battery pack is inserted, inserted or inserted.
  • the receiving means may also be arranged obliquely on the charger, which facilitates the insertion of the charger.
  • the receiving means is open at the top and closed at the bottom.
  • water e.g. Condensation, rainwater, accumulate. Water in the receiving means is undesirable since the electrical contact elements are located on the receiving means. With the help of Wasserauslassö Maschinenen in the second module, the water can drain.
  • the contact elements on an insulating means.
  • insulating means an insulating collar and / or a contact base insulation may be suitable.
  • the insulating means are provided in particular at the foot of the electrical contact elements. If water accumulates in the receiving means, the insulating means prevent the electrical contact elements come into contact with water, at least as long as only a small amount of water accumulates in the receiving means.
  • Figure 1 shows an embodiment of a charger according to the invention in perspective
  • Figure 2 is the first module of the charger of Figure 1 in a perspective view
  • Figure 3a shows the second module of the charger of Figure 1 in a perspective view from above Figure 3b, the second module of the charger of Figure 1 in a perspective view from below.
  • FIG. 1 an embodiment of a charger 1 according to the invention for a rechargeable battery pack for a power tool is shown in perspective.
  • the charger 1 has a housing 12 in which the electronic components (not shown) of the charger 1 are housed.
  • the charger 1 further comprises means 22 for receiving a battery pack (not shown) in the form of a receiving shaft.
  • the receiving means 22 is formed by a recess into which the battery pack is inserted.
  • the receiving means 22 is arranged obliquely on the housing 12 of the charger 1 according to FIG. 1. It is open at the top and closed at the bottom so that the battery pack can be inserted from the top.
  • electrical contact elements 23, 24 are arranged. Two contact elements 23 serve the power supply. Two further contact elements 24 are provided for the data exchange between charger and battery pack. If a battery pack is inserted into the receiving means 22, the contact elements 23, 24 contact corresponding contact elements of the battery pack.
  • the receiving means 22 and the contact elements 23, 24 form the charger battery pack interface.
  • the charger 1 consists of at least two modules, wherein the housing 12, a first module 10 and the receiving means 22 and the contact elements 23, 24 form a second module 20.
  • the charger battery pack interface thus forms an independent module 20.
  • the first module 10 is shown.
  • the housing 12 has a recess 13 for receiving the second Module 20 on.
  • the second module 20 is inserted into the recess 13 of the first module 10 and screwed thereto.
  • the second module 20 screwed eyelets 25 (Fig. 3a).
  • the running as ribs guide 14 engage in corresponding grooves of the battery pack, so that the battery pack can be safely inserted into the receiving means 22.
  • these guide means may also be attached to the second module (not shown).
  • FIG. 3a shows the second module 20 in perspective from above, so that the side of the second module 20 can be seen, which faces outward in the mounted state.
  • Fig. 3b shows the second module 20 in perspective from below, wherein the side of the second module 20 can be seen, which in the mounted state has inwardly into the interior of the housing 12.
  • the second module is provided with a means 26 for mechanical coding.
  • the coding means 26 is formed in the illustrated embodiment as a square pin. When introducing the battery pack into the receiving means 22, the coding means 26 cooperates with a corresponding means on the battery pack. Only if the rechargeable battery pack has a corresponding means, the battery pack can be properly introduced into the receiving means. This prevents that a battery pack is introduced into the receiving means, which is not suitable to be charged by the charger.
  • the second module 20 also has a fan 27 and an air inlet opening or an air outlet opening 28 in the illustrated embodiment.
  • the fan 27 serves to cool a coolable battery pack during the charging process and to cool the electronic components of the charger 1. With the help of the fan cooling air is blown into a coolable battery pack, which is inserted into the receiving means 22, and blown through it.
  • the fan 27 is attached to the bottom 29 of the receiving means 22, for example screwed.
  • a ventilation grille 30 is attached at the air inlet or air outlet opening 28, a ventilation grille 30 is attached. This prevents coarse dirt and dust particles from entering the charger 1 and possibly damaging the fan 27.
  • two water outlet openings 31 are provided on the second module. If water accumulates at the lower end of the receiving means 22, it can flow off via the water outlet openings 31.
  • the electrical contact elements 23, 24 have insulating means 32. At the foot of the electrical contact elements 23, 24 are made of an electrically non-conductive material, in particular made of plastic, insulating collar and a contact base insulation as insulating means 32. If water accumulates in the receiving means 22, the insulating means 32 prevent the electrical contact elements 23, 24 from coming into contact with water.

Landscapes

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

Abstract

L'invention concerne un chargeur destiné à au moins une batterie d'accumulateurs, comportant un boîtier (12) qui présente des moyens (22) servant à loger au moins une batterie d'accumulateurs et au moins deux éléments de contact (23) pour l'alimentation électrique de la batterie d'accumulateurs. Ce chargeur (1) est constitué d'au moins deux modules (10, 20), le boîtier (12) formant un premier module (10) et le moyen de logement (22) et les éléments de contact (23) formant un deuxième module (20).
PCT/EP2008/059566 2007-09-06 2008-07-22 Chargeur à deux modules WO2009033865A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007042398.7 2007-09-06
DE200710042398 DE102007042398A1 (de) 2007-09-06 2007-09-06 Ladegerät

Publications (1)

Publication Number Publication Date
WO2009033865A1 true WO2009033865A1 (fr) 2009-03-19

Family

ID=40210526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/059566 WO2009033865A1 (fr) 2007-09-06 2008-07-22 Chargeur à deux modules

Country Status (2)

Country Link
DE (1) DE102007042398A1 (fr)
WO (1) WO2009033865A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017174419A1 (fr) * 2016-04-05 2017-10-12 Robert Bosch Gmbh Machine-outil à main et bloc d'accumulateurs pour machine-outil à main
WO2019185500A1 (fr) * 2018-03-28 2019-10-03 Robert Bosch Gmbh Dispositif de charge
US11523510B2 (en) 2018-10-17 2022-12-06 Milwaukee Electric Tool Corporation Battery charger including printed circuit board having an AC portion and a DC portion
US11540429B2 (en) 2018-07-30 2022-12-27 Milwaukee Electric Tool Corporation Battery charger
US12117015B2 (en) 2020-04-16 2024-10-15 Makita Corporation Charger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013218534A1 (de) * 2013-09-16 2015-03-19 Robert Bosch Gmbh Akkuladevorrichtung
DE102013218533A1 (de) * 2013-09-16 2015-03-19 Robert Bosch Gmbh Akkuladevorrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485769A2 (fr) * 1990-11-15 1992-05-20 BSG-Schalttechnik GmbH & Co. KG Chargeur pour batteries rechargeables
EP0485784A2 (fr) * 1990-11-15 1992-05-20 Kress-elektrik GmbH + Co. Elektromotorenfabrik Chargeur pour batteries rechargeables
US5233281A (en) * 1991-12-02 1993-08-03 Wen-Chi Chiang Replaceable cartridge type high speed nickel-cadmium battery charger
EP0716495A2 (fr) * 1994-12-07 1996-06-12 Honda Giken Kogyo Kabushiki Kaisha Chargeur de batterie
US5592064A (en) * 1992-11-26 1997-01-07 Sanyo Electric Co., Ltd. Battery charging apparatus, power supply, and attachment for connecting different types of battery packs to a battery charger
US5926005A (en) * 1997-04-21 1999-07-20 Transcrypt International / E.F. Johnson Company Charger for batteries and for devices having batteries
EP1710889A2 (fr) * 2005-04-04 2006-10-11 Hitachi Koki Co., Ltd. Chargeur de batterie pour une batterie aux ions de lithium

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138598A1 (de) * 1991-11-23 1993-05-27 Hilti Ag Kontaktierung eines akkus
DE9214973U1 (de) * 1992-11-04 1993-02-18 Herken, Wolfgang, 5600 Wuppertal Papiereinlage für die Kindertoilette und Bettpfanne
JP3540542B2 (ja) * 1997-03-31 2004-07-07 三洋電機株式会社 充電器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485769A2 (fr) * 1990-11-15 1992-05-20 BSG-Schalttechnik GmbH & Co. KG Chargeur pour batteries rechargeables
EP0485784A2 (fr) * 1990-11-15 1992-05-20 Kress-elektrik GmbH + Co. Elektromotorenfabrik Chargeur pour batteries rechargeables
US5233281A (en) * 1991-12-02 1993-08-03 Wen-Chi Chiang Replaceable cartridge type high speed nickel-cadmium battery charger
US5592064A (en) * 1992-11-26 1997-01-07 Sanyo Electric Co., Ltd. Battery charging apparatus, power supply, and attachment for connecting different types of battery packs to a battery charger
EP0716495A2 (fr) * 1994-12-07 1996-06-12 Honda Giken Kogyo Kabushiki Kaisha Chargeur de batterie
US5926005A (en) * 1997-04-21 1999-07-20 Transcrypt International / E.F. Johnson Company Charger for batteries and for devices having batteries
EP1710889A2 (fr) * 2005-04-04 2006-10-11 Hitachi Koki Co., Ltd. Chargeur de batterie pour une batterie aux ions de lithium

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017174419A1 (fr) * 2016-04-05 2017-10-12 Robert Bosch Gmbh Machine-outil à main et bloc d'accumulateurs pour machine-outil à main
US10797281B2 (en) 2016-04-05 2020-10-06 Robert Bosch Gmbh Hand-held power tool and rechargeable battery pack for a hand-held power tool
WO2019185500A1 (fr) * 2018-03-28 2019-10-03 Robert Bosch Gmbh Dispositif de charge
CN112042046A (zh) * 2018-03-28 2020-12-04 罗伯特·博世有限公司 充电装置
US11495844B2 (en) 2018-03-28 2022-11-08 Robert Bosch Gmbh Charging device
US11540429B2 (en) 2018-07-30 2022-12-27 Milwaukee Electric Tool Corporation Battery charger
US11523510B2 (en) 2018-10-17 2022-12-06 Milwaukee Electric Tool Corporation Battery charger including printed circuit board having an AC portion and a DC portion
US11855468B2 (en) 2018-10-17 2023-12-26 Milwaukee Electric Tool Corporation Battery charger including an isolating member
US12117015B2 (en) 2020-04-16 2024-10-15 Makita Corporation Charger

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Publication number Publication date
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