EP1658654A2 - Batteriepack mit mitteln zur wärmeableitung - Google Patents
Batteriepack mit mitteln zur wärmeableitungInfo
- Publication number
- EP1658654A2 EP1658654A2 EP04738795A EP04738795A EP1658654A2 EP 1658654 A2 EP1658654 A2 EP 1658654A2 EP 04738795 A EP04738795 A EP 04738795A EP 04738795 A EP04738795 A EP 04738795A EP 1658654 A2 EP1658654 A2 EP 1658654A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery pack
- heat
- housing
- battery cells
- battery
- 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- Withdrawn
Links
- 239000004020 conductor Substances 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/623—Portable devices, e.g. mobile telephones, cameras or pacemakers
- H01M10/6235—Power tools
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
-
- 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 present invention relates to a battery pack with means for heat dissipation from a plurality of battery cells arranged in a housing.
- Rechargeable battery packs are used, for example, to operate power tools. Both during the operation of a battery pack, that is to say during its discharging process, and during the charging process, the currents flowing through the battery cells cause the battery cells to become very hot. So that the temperature of the battery cells does not exceed a maximum permissible threshold during the charging process - which would lead to the destruction of the battery cells - the charging current must be reduced, with the result that the charging time for the battery pack is extended. In order to achieve a higher charging current and, consequently, a shorter charging time for the battery pack, overheating of the battery pack must be avoided. According to the prior art, measures are therefore taken to remove heat from the battery cells from the battery pack.
- a ventilation system for the battery pack is provided for this purpose, which allows air to flow through the interior of the housing of the battery pack.
- air inlet and outlet openings are provided in the housing of the battery pack.
- the disadvantage here is that when the air flows through the housing of the battery pack, dirt particles can also get into the interior of the battery pack. Contamination inside the battery pack can, however, change heat transfers between the battery cells and also impair the electrical function of the battery pack.
- the ⁇ parts inside the battery pack form a high air resistance, which affects the effectiveness of the heat dissipation.
- the invention has for its object to provide a battery pack with means for heat dissipation, which have the highest possible heat dissipating effect and also do not affect the function of the battery pack.
- the wall of the housing surrounding the battery cells of the battery pack is shaped such that it forms at least one bushing for a heat-dissipating medium which is sealed off from the interior of the housing.
- the heat-dissipating medium is not passed through the interior of the housing of the battery pack. It is thus avoided that dirt can penetrate into the interior of the battery pack and impair its electrical function.
- the bushings separated from the inside of the battery pack form a very low flow resistance for the heat-dissipating medium flowing through, which results in a high cooling effect.
- the heat dissipation can be optimized in that the at least one bushing is shaped in such a way that its wall bears positively on the battery cells adjacent to it.
- a particularly high heat dissipation is possible in that the wall regions forming the at least one bushing consist at least in part of a heat-conducting material.
- FIG. 1 is a plan view of a battery pack with battery cells located therein
- Fig. 2 shows a cross section AA through the battery pack, the bushing for the heat-dissipating medium being a separate part inserted into the housing and Fig. 3 shows a cross section through a battery pack, in which the implementation is formed by two housing parts.
- FIG. 1 shows a plan view of a battery pack in which a plurality of cylindrical battery cells 2 are arranged in a housing 1. In the drawn position of the battery pack, the longitudinal axes of the cylindrical battery cells 2 extend perpendicular to the plane of the drawing.
- the housing 1 is provided with two bushings 3 and 4 through which a heat-dissipating medium, for example air, can be passed. It is also possible to provide only one bushing or more than two bushings.
- the bushings 3 and 4 are formed by a corresponding shaping of the housing 1 of the battery pack in such a way that they are completely closed off from the interior of the housing 1.
- a heat-dissipating medium passed through bushings 3 and 4 cannot penetrate into the interior of the battery pack, with the result that no dirt particles can get into the housing together with the heat-dissipating medium.
- the smooth wall of the bushings 3 and 4 ensures that the heat-dissipating medium is guided in a fluidically favorable manner, which leads to a very good cooling effect.
- the heat-dissipating medium can be transported by natural convection or by convection supported by a blower.
- a blower can for example be part of the battery pack or the charger for the battery pack or the machine in which the battery pack is inserted.
- the bushings 3, 4 extend parallel to the longitudinal axes of the cylindrical battery cells 2. This position of the bushings 3 and 4 is particularly favorable because the bushings 3 and 4 are arranged in the gussets between the individual battery cells 2. This has the advantage that the walls 5 and 6 of the bushings 3 and 4 can be brought into contact with the adjacent battery cells 2 over a large area in a heat-conducting manner.
- the bushings can also be arranged transversely or diagonally to the battery cells and also have curved courses. How 1, the walls 5 and 6 of the bushings 3 and 4 are preferably shaped such that they bear positively on the battery cells 2 adjacent to them. If the walls 5 and 6 of the bushings 3 and 4 consist of a particularly good heat-conducting material (e.g. metal), the heat dissipation effect is particularly high.
- the housing 1 of the battery pack consists of an upper housing shell 11 and a lower housing shell 12.
- the walls 5 and 6 of the bushings 3 and 4 are made by separate parts 5 inserted between the two housing shells 11 and 12 , 6 formed.
- these housing parts 5, 6 are set back with respect to the upper housing shell 11 and lower housing shell 12, so that contact by the particularly good heat-conducting material of the walls 5 or 6 is prevented by a user.
- the walls of the bushings 3, 4 are molded directly onto the housing shells 11, 12.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003138654 DE10338654A1 (de) | 2003-08-22 | 2003-08-22 | Batteriepack mit Mitteln zur Wärmeableitung |
| PCT/DE2004/001348 WO2005027241A2 (de) | 2003-08-22 | 2004-06-25 | Batteriepack mit mitteln zur wärmeableitung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1658654A2 true EP1658654A2 (de) | 2006-05-24 |
Family
ID=34201867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04738795A Withdrawn EP1658654A2 (de) | 2003-08-22 | 2004-06-25 | Batteriepack mit mitteln zur wärmeableitung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7597993B2 (de) |
| EP (1) | EP1658654A2 (de) |
| CN (1) | CN1839510B (de) |
| DE (1) | DE10338654A1 (de) |
| WO (1) | WO2005027241A2 (de) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1969655B1 (de) | 2005-12-27 | 2011-11-23 | LG Chem, Ltd. | Rahmenglied und damit verwendetes batteriepack |
| JP2007311124A (ja) * | 2006-05-17 | 2007-11-29 | Toyota Motor Corp | 電池パックおよび車両 |
| KR100886571B1 (ko) | 2006-08-07 | 2009-03-05 | 주식회사 엘지화학 | 전지팩 케이스 |
| DE102007024869B4 (de) | 2007-05-29 | 2021-05-06 | Robert Bosch Gmbh | Energiespeichermodul sowie Elektrogerät mit mindestens einem Energiespeichermodul |
| DE102007024870A1 (de) | 2007-05-29 | 2008-12-04 | Robert Bosch Gmbh | Energiespeichermodul sowie Elektrogerät mit einem Energiespeichermodul |
| DE102008011508A1 (de) * | 2008-02-22 | 2009-08-27 | Volkswagen Ag | Energiespeicher sowie Verfahren zur Herstellung des Energiespeichers |
| DE102009004543A1 (de) * | 2009-01-14 | 2010-07-15 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung zur Spannungsversorgung eines Kraftfahrzeugs mit optimierter Wärmeabführung |
| DE102009006080A1 (de) * | 2009-01-26 | 2010-07-29 | Behr Gmbh & Co. Kg | Kühlvorrichtung für eine galvanische Zelle |
| JP2011049012A (ja) * | 2009-08-26 | 2011-03-10 | Sanyo Electric Co Ltd | バッテリパック |
| DE102012209302A1 (de) | 2012-06-01 | 2013-12-05 | Robert Bosch Gmbh | Kühlmittelverteilsystem |
| US9172115B2 (en) | 2012-06-12 | 2015-10-27 | Milwaukee Electric Tool Corporation | Battery pack with multiple water discharge pathways |
| AU362572S (en) | 2014-11-26 | 2015-07-15 | Techtronic Ind Co Ltd | Battery |
| CN106450566A (zh) * | 2016-09-20 | 2017-02-22 | 广东工业大学 | 一种具有防灾害系统的动力电池模组 |
| JP2020095777A (ja) * | 2017-03-31 | 2020-06-18 | 三洋電機株式会社 | 電池パック |
| US11309597B2 (en) | 2018-01-11 | 2022-04-19 | Carrier Corporation | Battery temperature control |
| CN108899442A (zh) * | 2018-06-09 | 2018-11-27 | 深圳市逸尘运动科技有限公司 | 动力锂电池支架 |
| KR102813064B1 (ko) | 2019-12-03 | 2025-05-26 | 밀워키 일렉트릭 툴 코포레이션 | 배터리 팩 및 충전기 시스템 |
| KR20250160526A (ko) | 2022-01-12 | 2025-11-13 | 컨템포러리 엠퍼렉스 테크놀로지 (홍콩) 리미티드 | 전지 및 전기 장치 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6004689A (en) * | 1995-09-27 | 1999-12-21 | Bolder Technologies Corporation | Battery case |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2638862A1 (de) * | 1976-08-28 | 1978-03-09 | Bosch Gmbh Robert | Verfahren und vorrichtung zum beheizen der fahrgastzelle eines elektrofahrzeuges |
| US4489792A (en) * | 1981-05-28 | 1984-12-25 | Fahim Atef E F | Hammer drill adapter |
| US5526404A (en) * | 1991-10-10 | 1996-06-11 | Space Systems/Loral, Inc. | Worldwide satellite telephone system and a network coordinating gateway for allocating satellite and terrestrial gateway resources |
| US5511912A (en) * | 1994-09-19 | 1996-04-30 | Ellerbrock; Brian E. | Hand tool attachment |
| US6455186B1 (en) * | 1998-03-05 | 2002-09-24 | Black & Decker Inc. | Battery cooling system |
| TW463402B (en) * | 1999-03-12 | 2001-11-11 | Toshiba Battery | Battery pack and power tool |
| JP3742261B2 (ja) * | 1999-11-10 | 2006-02-01 | 株式会社マキタ | 電動工具用バッテリーパック |
| GB0312178D0 (en) | 2003-05-28 | 2003-07-02 | Dix Robert J | Adapter for rotary hammer action drills |
-
2003
- 2003-08-22 DE DE2003138654 patent/DE10338654A1/de not_active Withdrawn
-
2004
- 2004-06-25 WO PCT/DE2004/001348 patent/WO2005027241A2/de not_active Ceased
- 2004-06-25 EP EP04738795A patent/EP1658654A2/de not_active Withdrawn
- 2004-06-25 US US10/560,057 patent/US7597993B2/en not_active Expired - Fee Related
- 2004-06-25 CN CN2004800240917A patent/CN1839510B/zh not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6004689A (en) * | 1995-09-27 | 1999-12-21 | Bolder Technologies Corporation | Battery case |
Also Published As
| Publication number | Publication date |
|---|---|
| US7597993B2 (en) | 2009-10-06 |
| WO2005027241A2 (de) | 2005-03-24 |
| DE10338654A1 (de) | 2005-03-17 |
| US20060141347A1 (en) | 2006-06-29 |
| CN1839510A (zh) | 2006-09-27 |
| CN1839510B (zh) | 2013-03-27 |
| WO2005027241A3 (de) | 2005-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
|
| 17P | Request for examination filed |
Effective date: 20060601 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR GB |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR GB |
|
| 17Q | First examination report despatched |
Effective date: 20071002 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20130918 |