US20080314792A1 - Device for Mounting Battery Cells of a Battery Pack - Google Patents

Device for Mounting Battery Cells of a Battery Pack Download PDF

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Publication number
US20080314792A1
US20080314792A1 US12/102,052 US10205208A US2008314792A1 US 20080314792 A1 US20080314792 A1 US 20080314792A1 US 10205208 A US10205208 A US 10205208A US 2008314792 A1 US2008314792 A1 US 2008314792A1
Authority
US
United States
Prior art keywords
holding part
protrusions
battery cells
assembly direction
openings
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.)
Abandoned
Application number
US12/102,052
Other languages
English (en)
Inventor
Arttu Daeschler
Olaf Schmid
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.)
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and Co
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 Metabowerke GmbH and Co filed Critical Metabowerke GmbH and Co
Assigned to METABOWERKE GMBH reassignment METABOWERKE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DAESCHLER, ARTTU, SCHMID, OLAF
Publication of US20080314792A1 publication Critical patent/US20080314792A1/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention is directed to a device for mounting battery cells of a battery pack, in particular for a handheld electric tool, with a first holding part and a second holding part which can be joined and locked onto one another by interposing the rechargeable battery cells.
  • the first holding part is connected to and locked onto the second holding part by a clip connection.
  • the clip connection the first holding part and the second holding part can only be secured with respect to one another with a certain spacing, making such devices suitable only for battery cells of a certain geometry, in particular battery cells having a certain height.
  • the first holding part is connected with the second holding part by a screw connection which, however, is time-consuming.
  • the openings have an inside contour which is substantially complementary to the outer contour of the protrusions, the openings are slightly tapered towards the outer contour, so that the protrusions of the first holding part can be lockingly secured in the openings.
  • a yieldable outside diameter is defined as a diameter which can change, in particular be tapered, perpendicular to the assembly direction,.
  • the protrusions are formed as pins.
  • the protrusions extend as columns in the assembly direction from the first holding part towards the second holding part.
  • the device is compact and open perpendicular to the assembly direction.
  • the outer periphery of the protrusions has a slightly tapered, in particular conical contour. The protrusions can then be easily inserted into the openings without requiring exactly alignment.
  • the tapered outer periphery of the protrusions is preferably inclined by an angle of 0.5° to 3.0° with respect to the assembly direction.
  • the protrusions have at least one slot.
  • the at least one slot can extend in the assembly direction and can be contiguous throughout the protrusion, i.e., the slot can divide the protrusion into segments.
  • several slots in form of a cross slot arrangement may be provided.
  • the protrusion has a slot that extends in the assembly direction and ends at the free end of the protrusion, as viewed in the assembly direction. The segments of the protrusion formed in this manner can the move towards one another or be pressed against each other. This arrangement realizes a yieldable outer periphery.
  • the first holding part and the protrusions are formed as a single piece or from separate individual components.
  • the protrusions and the first holding part can therefore be produced in a single common injection molding process or can be assembled in a later processing step.
  • the first holding part and the second holding part can be used for different battery cells of significantly different height, wherein the protrusions need only match the height of the actually employed batteries.
  • the first and/or the second holding part include spacer elements which each separate two adjacent battery cells.
  • the spacer elements can be formed as a single piece with the first or the second holding part or can be attached as separate components to the first or second holding part.
  • the battery cells may be prevented from contacting each other so that even battery cells which are not electrically insulated can be used.
  • the openings of the second holding part have a tapered interior contour and, more particularly, are conically shaped.
  • the first holding part and/or the second holding part have frame means, which secure the battery cells and prevent them from moving perpendicular to the assembly direction.
  • the frame means may be formed as one piece with the holding parts; alternatively, the frame means may be separate individual components, which are made of one or several separate individual components and are inserted into the holding parts.
  • the frame means are formed with a geometry that is complementary to the geometry of the battery cell, so that the battery cells are positively locked by the frame means. This prevents the battery cells from wobbling in the holding parts.
  • the frame means are formed as openings or recesses in the first and/or in the second holding part.
  • the frame means is hence an integral component of the first and/or second holding part, resulting in a very compact device with a small parts count.
  • the frame means have in the assembly direction an opening extending through the first and/or the second holding part, making a battery cell accessible from the outside.
  • the battery cells can be contacted or welded to each other, for example by using contact sheets.
  • the first and/or the second holding part, including the protrusions is preferably formed as a plastic injection molded part.
  • the first and/or the second holding part have a limit stop in the assembly direction.
  • the device can be adapted to battery cells of a defined size, wherein the assembled device has a predefined height.
  • the limit stop is formed on the protrusions as a shoulder perpendicular to the assembly direction.
  • FIG. 1 a perspective view of a first holding part of a device according to the invention
  • FIG. 2 a perspective view of a second holding part of the device according to the invention.
  • FIG. 3 a perspective view of the assembled device according to the invention.
  • the figures illustrate a device 2 for mounting rechargeable battery cells 4 in a battery pack, wherein a first holding part 6 can be connected with a second holding part 8 .
  • the first holding part 6 has protrusions which extend in an assembly direction 10 and can be inserted into openings 14 of the second holding part 8 , where they can be locked in position.
  • FIG. 1 shows the first holding part 6 of the device 2 with the protrusions 12 being formed with the first holding part 6 as a single part.
  • the protrusions 12 have a conical outer contour and a slot 16 with an open edge towards the free end. With the open slot 16 , the respective protrusion 12 can be pressed together by moving the sections created by the slot 16 towards one another. This produces the yieldable outer periphery.
  • the protrusions 12 have each a limit stop 20 implemented as a shoulder 18 .
  • spacer elements 22 separating the installed battery cells 4 are arranged on the first holding part 6 .
  • the spacer elements 22 like the protrusions 12 , have shoulders 18 which can operate as a limit stop.
  • Spacer elements 22 and protrusions 12 are arranged between frame means 24 of the first mounting part; these space the battery cells 4 , which are not illustrated in FIG. 1 , apart from one another.
  • the frame means 24 are hereby formed by cavities 26 extending in the assembly direction 10 .
  • the frame means 24 are used to secure the battery cells 4 perpendicular to the assembly direction.
  • the first holding part 6 also has a limit stop 29 formed by a wall 28 .
  • FIG. 2 shows the second holding part 8 with openings 14 configured to complement the protrusions 12 .
  • the second holding part 8 has likewise spacer elements 22 which are configured to contact in an end position the shoulders 18 of the spacer elements 22 of the first mounting part 6 .
  • the second mounting part 8 also has frame means 24 formed by indentations 26 .
  • FIG. 2 shows more clearly that the cavities 26 in the first holding part 6 and in the second holding part 8 are formed as a passageway 32 with an axial material edge 30 that prevents the battery cells 4 from sliding out.
  • the battery cells 4 can be accessed and contacted from the outside via this passageway.
  • the passageways 32 are formed in both the first holding part 6 and in the second holding part 8 .
  • FIG. 3 shows the assembled device 2 .
  • the battery cells 4 are hereby arranged between the first holding part 6 and the second holding part 8 .
  • the first holding part 6 and the second holding part 8 are inserted into one another and contact each other at limit stop 20 , thereby preventing further relative movement between the two holding parts in the assembly direction 10 .
  • FIG. 3 also illustrates that, after the first holding part 6 and the second holding part 8 have been assembled, the battery cells are contacted by a metal sheet 34 , so that they cooperate in a battery pack.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
US12/102,052 2007-06-22 2008-04-14 Device for Mounting Battery Cells of a Battery Pack Abandoned US20080314792A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07012261A EP2006054A1 (fr) 2007-06-22 2007-06-22 Dispositif pour retenir des éléments de batterie dans un bloc-batterie
EP07012261.9-2316 2007-06-22

Publications (1)

Publication Number Publication Date
US20080314792A1 true US20080314792A1 (en) 2008-12-25

Family

ID=38261597

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/102,052 Abandoned US20080314792A1 (en) 2007-06-22 2008-04-14 Device for Mounting Battery Cells of a Battery Pack

Country Status (3)

Country Link
US (1) US20080314792A1 (fr)
EP (1) EP2006054A1 (fr)
CN (1) CN101330134A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2690684A2 (fr) * 2011-03-21 2014-01-29 Lg Chem, Ltd. Support de cellule de batterie possédant une fiabilité améliorée de connexion, et module batterie comprenant ledit support
USD772806S1 (en) 2014-11-26 2016-11-29 Techtronic Industries Co. Ltd. Battery
US20180287108A1 (en) * 2017-03-29 2018-10-04 NextEv USA, Inc. Cylindrical cell toggle holder
US10868286B2 (en) 2014-02-19 2020-12-15 Lisa Draexlmaier Gmbh Fixing battery cells in place by compressed cell fixture
EP3799195A1 (fr) * 2019-09-27 2021-03-31 Proterra Inc. Logement de batterie
US20210288375A1 (en) * 2018-12-20 2021-09-16 Silgan Containers Llc Reinforced-End Battery Cell Spacer
US11145932B2 (en) * 2018-09-24 2021-10-12 Milwaukee Electric Tool Corporation Battery cell module and battery pack
US11258131B2 (en) 2018-12-21 2022-02-22 Lg Energy Solution, Ltd. Battery module including module housing
US11355810B2 (en) * 2019-01-07 2022-06-07 Andreas Stihl Ag & Co. Kg Cell holder structure for holding rechargeable battery cells

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009012180A1 (de) * 2009-02-27 2010-09-02 Andreas Stihl Ag & Co. Kg Akkupack für ein Elektrowerkzeug
AT508742B1 (de) * 2009-09-10 2011-07-15 Norman Neuhold Einsatz für ein akkumulatorteil
KR20140090459A (ko) * 2013-01-09 2014-07-17 삼성에스디아이 주식회사 이차전지 팩

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741815A (en) * 1972-01-25 1973-06-26 Peterson Prod San Mateo Inc Railroad signal battery box
US4130200A (en) * 1977-05-06 1978-12-19 Gould Inc. Display package for batteries or the like
US20050130033A1 (en) * 2002-06-17 2005-06-16 Akira Iwamura Combined battery and battery holding frame

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2832948B2 (ja) * 1988-07-12 1998-12-09 ソニー株式会社 電池ホルダ
DE9403891U1 (de) * 1994-03-08 1995-07-06 Aeg Mobile Communication Gmbh, 89081 Ulm Akku-Pack
EP1548859B1 (fr) * 1999-07-15 2007-06-13 BLACK & DECKER INC. Module de batterie et son procédé de fabrication
JP2001076697A (ja) * 1999-09-02 2001-03-23 Tookado:Kk 電池パック蓋結合構造
JP4547741B2 (ja) * 1999-10-06 2010-09-22 パナソニック株式会社 電池保持装置
WO2007033689A1 (fr) * 2005-09-20 2007-03-29 Metabowerke Gmbh Bloc d'accumulateurs et outil electrique a main

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741815A (en) * 1972-01-25 1973-06-26 Peterson Prod San Mateo Inc Railroad signal battery box
US4130200A (en) * 1977-05-06 1978-12-19 Gould Inc. Display package for batteries or the like
US20050130033A1 (en) * 2002-06-17 2005-06-16 Akira Iwamura Combined battery and battery holding frame

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2690684A2 (fr) * 2011-03-21 2014-01-29 Lg Chem, Ltd. Support de cellule de batterie possédant une fiabilité améliorée de connexion, et module batterie comprenant ledit support
JP2014511555A (ja) * 2011-03-21 2014-05-15 エルジー ケム． エルティーディ． 接続信頼性が向上したバッテリーセル・ホルダー、及びそれを含むバッテリーモジュール
EP2690684A4 (fr) * 2011-03-21 2014-12-17 Lg Chemical Ltd Support de cellule de batterie possédant une fiabilité améliorée de connexion, et module batterie comprenant ledit support
US8999540B2 (en) 2011-03-21 2015-04-07 Lg Chem, Ltd. Battery cell holder of improved connecting reliability and battery module employed with the same
JP2016021401A (ja) * 2011-03-21 2016-02-04 エルジー ケム． エルティーディ． 接続信頼性が向上したバッテリーセル・ホルダー、及びそれを含むバッテリーモジュール
US10868286B2 (en) 2014-02-19 2020-12-15 Lisa Draexlmaier Gmbh Fixing battery cells in place by compressed cell fixture
USD793953S1 (en) 2014-11-26 2017-08-08 Techtronic Industries Co. Ltd. Battery
USD772806S1 (en) 2014-11-26 2016-11-29 Techtronic Industries Co. Ltd. Battery
US20180287108A1 (en) * 2017-03-29 2018-10-04 NextEv USA, Inc. Cylindrical cell toggle holder
US11145932B2 (en) * 2018-09-24 2021-10-12 Milwaukee Electric Tool Corporation Battery cell module and battery pack
US11677118B2 (en) 2018-09-24 2023-06-13 Milwaukee Electric Tool Corporation Battery cell module and battery pack
US20210288375A1 (en) * 2018-12-20 2021-09-16 Silgan Containers Llc Reinforced-End Battery Cell Spacer
US11258131B2 (en) 2018-12-21 2022-02-22 Lg Energy Solution, Ltd. Battery module including module housing
US11355810B2 (en) * 2019-01-07 2022-06-07 Andreas Stihl Ag & Co. Kg Cell holder structure for holding rechargeable battery cells
EP3799195A1 (fr) * 2019-09-27 2021-03-31 Proterra Inc. Logement de batterie
US11569543B2 (en) 2019-09-27 2023-01-31 Proterra Operating Company, Inc. Battery cassette

Also Published As

Publication number Publication date
EP2006054A1 (fr) 2008-12-24
CN101330134A (zh) 2008-12-24

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AS Assignment

Owner name: METABOWERKE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DAESCHLER, ARTTU;SCHMID, OLAF;REEL/FRAME:020940/0615;SIGNING DATES FROM 20080313 TO 20080325

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION