WO2017060152A1 - Ensemble batterie de traction - Google Patents

Ensemble batterie de traction Download PDF

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Publication number
WO2017060152A1
WO2017060152A1 PCT/EP2016/073283 EP2016073283W WO2017060152A1 WO 2017060152 A1 WO2017060152 A1 WO 2017060152A1 EP 2016073283 W EP2016073283 W EP 2016073283W WO 2017060152 A1 WO2017060152 A1 WO 2017060152A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
battery cell
drive
electronic unit
cooling device
Prior art date
Application number
PCT/EP2016/073283
Other languages
German (de)
English (en)
Inventor
Andreas Klaffki
Robert Lustig
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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 Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2017060152A1 publication Critical patent/WO2017060152A1/fr

Links

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
    • H01M10/60—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
    • 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
    • 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
    • H01M10/625—Vehicles
    • 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
    • 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
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/667—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an electronic component, e.g. a CPU, an inverter or a capacitor
    • 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
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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 relates to a drive battery assembly for an electric, hybrid or fuel cell motor vehicle.
  • Motor vehicles having an electric drive train usually have a drive battery assembly that has a plurality of battery cells that provide electrical energy for driving the motor vehicle.
  • the drive battery assembly includes an electronics unit that monitors, switches, and / or regulates the electrical output of the battery cells.
  • high electrical power is required, whereby, among other things, heat is also generated in the electronics unit.
  • the object of the invention is to provide a low cost drive battery assembly which has a long life.
  • a drive battery assembly for an electric, hybrid or fuel cell vehicle, with a battery case, at least one accommodated in the battery housing battery cell that can store electrical energy to drive the motor vehicle, housed in a battery housing electronics unit, the at least one battery cell monitors, controls and / or regulates, and an active battery cell cooling device for cooling the battery cell, wherein the electronic unit is coupled via at least one heat conducting device to the battery housing and / or the battery cell cooling device, so that a heat flow from the electronic unit to the battery housing or to the battery cell cooling device can flow.
  • the basic idea of the invention is that the electronic unit is cooled without much additional construction effort, which ensures that the electronic unit is operated in its intended temperature window. Due to the cooling, it is possible to use a cheaper electronic unit using components that do not have to meet high environmental / operating temperature requirements.
  • the cooling of the electronics unit is provided via components of the drive battery assembly, which are usually already provided, which is why no additional components must be installed. In addition, during operation of the drive battery assembly, these components have a lower temperature than the electronics unit, so that a heat flow can flow away from the electronics unit. Since the electronic unit is coupled via a heat conducting device with a correspondingly low thermal resistance and a high thermal conductivity to the corresponding components of the drive battery assembly, the heat dissipation is particularly high.
  • the battery line cooling device which is provided for active cooling of the battery cells anyway. Accordingly, no additional space for a further active cooling device is needed.
  • the battery cell cooling device thus has two functions, since it primarily cools the battery cells and secondarily the electronics unit of the drive battery assembly.
  • the electronics unit can be protected by cold surfaces of the battery Battery housing are cooled, whereby a passive cooling of the electronic unit is provided.
  • the cold surfaces of the battery case may be areas of the battery case that are cooled by the battery cell cooler when it cools the battery cells.
  • a cold surface is an area whose temperature is lower than the operating battery of the drive battery assembly Temperature of the electronics unit is.
  • the electronics unit is coupled to the battery cell cooling device and / or the battery housing via a plurality of heat conducting devices.
  • a larger amount of heat can flow away from the electronics unit in a shorter time, which ensures that the electronics unit is always operated in the intended temperature window.
  • a further aspect provides that the electronics unit is arranged on the inside of the battery housing via the heat-conducting device.
  • the electronics unit is arranged on the inside of the battery housing via the heat-conducting device.
  • the battery housing typically has cold surfaces on its insides, which in particular are cooled by the battery cell cooling device.
  • the electronic unit may be coupled via the heat conducting device to a connection point of the battery cell cooling device, on which the battery cell is at least partially arranged.
  • This connection point can also be a cold surface, which has a lower temperature than the electronics unit during operation of the drive battery assembly, so that a heat flow can flow.
  • connection point can be a support surface on which the battery cell is at least partially arranged.
  • the connection of the electronics unit to the support surface is particularly simple, since the support surface is the interface between the battery cell cooling device and the battery cell and thus is easy to reach.
  • the support surface is also a cold surface, since it serves primarily for cooling the battery cells.
  • the battery cell cooling device has at least one flat, plate-like cooling channel, which runs along a flat side of the battery cell to cool it.
  • the cooling channel is typically flowed through by a cooling medium, which absorbs and dissipates the heat emitted by the battery cell.
  • the bearing surface of the battery cell cooling device is formed by the surface of the cooling channel, which is associated with the battery cell.
  • the heat-conducting device rests against the at least one cooling channel of the battery cell cooling device, i. H. of course, on the canal wall.
  • the cooling channel is usually the coldest point of the battery cell cooling device, since the cooling channel interacts directly with the battery cell to carry away their heat during operation. This ensures that the electronics unit experiences the greatest possible cooling. Due to the shape of the cooling channel is also ensured that the heat-conducting can be connected in a simple manner to this.
  • the heat-conducting device compensates for unevenness and / or tolerances. This may be unevenness and / or tolerances of the electronics unit or the surface to which the heat conducting device is connected, that is to say one surface of the battery housing or of the battery cell cooling device. This ensures that the largest possible possible connection of the heat-conducting is possible, whereby a maximum heat flow can flow.
  • the heat-conducting device may be or have an electrical line of the electronics unit. Accordingly, no additional components are needed to connect the electronics unit to one of the cold surfaces.
  • the electrical line is, for example, a bus bar.
  • a plurality of battery cells are provided, which are combined in at least one battery cell module.
  • the drive battery assembly thereby has a correspondingly higher capacity.
  • the heat conducting device leads from the electronic unit directly to the battery cell cooling device, without intervening with the battery case Having contact, so that the heat conduction from the electronics unit not in the
  • FIG. 1 shows a drive battery assembly according to the invention according to a first embodiment
  • FIG. 2 shows a drive battery assembly according to the invention according to a second embodiment.
  • FIG. 1 shows a drive battery assembly 10 according to a first embodiment which can be used in an electric, hybrid or fuel cell power tool to drive it.
  • the drive battery assembly 10 includes a battery housing 12 (outer housing), which is formed in the illustrated embodiment of an open-topped box-shaped base 14 and a box-closing lid 16.
  • a battery housing 12 outer housing
  • two battery cell modules 18 designed as preassembled units are accommodated in the housing 12, each of which comprises a plurality of battery cells 20 which provide the electrical drive energy for the motor vehicle.
  • the battery cells 20 may be prismatic battery cells that are accommodated, for example, in a bag and arranged one behind the other in the battery cell module 18.
  • the battery cells 20 may be formed in particular as lithium-ion battery cells.
  • an electronic unit 22 is accommodated in the housing 12, which is used for monitoring, control and / or regulation of the battery cell modules 18 and / or the battery cells 20, in particular the electrically emitted or recorded power.
  • the battery cells 22 are assigned a battery cell cooling device 24 which, in the embodiment shown, comprises four cooling channels 26 which lead into the battery housing 12. Through the cooling channels 26, a cooling medium flows, which absorbs the heat generated by the Battenezeilen 20 and transported away. The battery cell cooling device 24 thus actively cools the battery cells 20.
  • cooling channels 26 are assigned to one battery cell module 18.
  • the cooling channels 26 (cooling channel wall including cavity) are flat and plate-shaped and have a support surface 27, over which they extend along a flat underside of the associated battery cell module 18 and thus the battery cells 20.
  • the battery cells 20 are arranged in the battery cell module 18 such that each battery cell 20 is cooled by the cooling channel 26. This is achieved in that the longitudinal direction of the battery cells 20 is perpendicular to the longitudinal direction of the cooling channels 26.
  • the electronic unit 22 is designed with passive cooling, since the electronic unit 22 is connected to a plurality of surfaces 30 of the battery housing 12 via a heat conducting device 28.
  • the surfaces 30 are cold surfaces of the battery case 12, which have a lower temperature than the electronics unit 22 during operation of the drive battery assembly 10 and are far from them, so that a heat flow from the electronics unit 22 to the battery case 12 can flow.
  • the heat conducting device 28 is further connected via a connection surface 32 on the electronic unit 22.
  • the attachment surface 32 may be, for example, a location of the electronics unit 22, which has a particularly high thermal conductivity or a hot spot.
  • the heat generated in the electronic unit 22 is thus discharged via the connection surface 32 to the, in particular metal-comprising heat conducting device 28, which removes the heat to the housing 12.
  • the cold surfaces 30 may be formed on the pot-shaped lower part 14 or the lid 16. Furthermore, specially formed areas of the housing 12 serve for connection of the heat conducting device 28, which have a different, in particular higher, thermal conductivity than the rest of the housing 12.
  • the heat conducting device 28 is arranged on surfaces 30 of the housing 12, which are respectively provided on the inside of the housing 12.
  • the surfaces 30 may be surfaces that are passively cooled by the battery line cooling device 24 when the battery cells 20 are cooled by it, or surfaces where the associated outside of the housing is exposed to the ambient air of the vehicle become. This ensures that the surfaces 30 have a significantly lower temperature than the electronic unit 22, so that a high heat flow can flow, which guarantees good cooling of the electronic unit 22.
  • FIG. 2 shows an alternative embodiment of the drive battery assembly 10, in which the electronics unit 22 is coupled directly to the battery line cooling device 24 via the heating device 28, without interposing the housing.
  • the 1971ieitvoriques 28 thus extends from the connection surface 32 of the electronic unit 22 directly to a connection point 34 of the battery line cooling device 24, which may be part of one of the cooling channels 26. This ensures that the electronic unit 22 undergoes maximum cooling, since the cooling channel 26 is typically the coldest point of the battery line cooling device 24 because it interacts directly with the battery cells 20.
  • connection point 34 is formed as a projection of the support surface 27 of the cooling channel 26 protruding perpendicularly and protruding with respect to the battery cells, on which the battery cells 20 are arranged. This facilitates the connection of the saltieitvoriques 28 to the cooling channel 26th
  • the entiretyieitvortechnische 28 is guided directly onto the support surface 27 on which the battery cells 20 rest, so that the connection point 34 is laterally adjacent to the battery cells 20. At this Embodiment can then be dispensed with the vertically protruding projection.
  • the electronics unit 22 is cooled by the battery cell cooling device 24, which is provided primarily for cooling the battery cells 20.
  • This cooling is therefore an active cooling of the electronic unit 22, since the battery cell cooling device 24 additionally actively cools the electronic unit 22 in a secondary manner.
  • the support surface 27, as well as the surfaces 30 in the first embodiment, are therefore cold surfaces which have a lower temperature than the electronics unit 22 during operation of the drive assembly 10. As a result, a heat flow leading away from the electronic unit 22 is ensured in each case.
  • the heat-conducting device 28 is designed such that it compensates for unevenness and / or tolerances on the electronic unit 22, the cold surfaces 30 of the battery housing 12 and / or the battery cell cooling device 24, in particular the cooling channels 26. This ensures that a large connection surface of the heat conducting device 28 is created, whereby a maximum heat flow can flow, which has an efficient cooling of the electronic unit 22 result.
  • the heat-conducting device 28 is preferably a component which has a high thermal conductivity and a low thermal resistance, so that the heat of the electronic unit 22 can be removed particularly well.
  • the heat-conducting device 28 may be an electrical line of the electronic unit 22, in particular a busbar.
  • a plurality of heat conducting devices 28 may be provided, which are formed separately from each other.
  • the plurality of heat conducting devices 28 may be arranged on the same connection surface 32 of the electronic unit 22 or on different connection surfaces 32, for example, to improve a spatial heat dissipation of the electronic unit 22.
  • a plurality of heat conducting devices 28 can be provided, which ensure a heat flow to the housing 12 and to the battery cell cooling device 24.
  • a drive battery assembly 10 is provided which allows sufficient cooling of the electronics unit 22 at no additional cost since no additional active cooling components are needed to cool the electronics unit 22.
  • the electronics unit 22 may be provided with cheaper components that should only be operated in a small temperature window, since the cooling of the electronics unit ensures that the temperature window is maintained.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un ensemble batterie de traction (10) pour véhicule à moteur électrique, hybride ou à piles à combustible, comprenant une cuve (12), au moins un élément de batterie (20) logé dans la cuve (12), ledit ensemble batterie de traction permettant le stockage d'énergie électrique pour la traction du véhicule à moteur. L'ensemble batterie de traction (10) présente une unité électronique (22) qui est logée dans la cuve (12) et qui assure la surveillance, la commande et/ou le réglage dudit au moins un élément de batterie (20). L'invention concerne également un dispositif de refroidissement actif (24) destiné à l'au moins un élément de batterie et conduisant dans la cuve de batterie (12) aux fins de refroidissement de l'au moins un élément de batterie (20). L'unité électronique (22) est couplée à la cuve (12) ou au dispositif de refroidissement (24) par au moins un dispositif thermoconducteur (28) de manière à ce qu'un flux thermique puisse circuler de l'unité électronique (22) jusqu'à la cuve de batterie (12) ou jusqu'au dispositif de refroidissement (24).
PCT/EP2016/073283 2015-10-09 2016-09-29 Ensemble batterie de traction WO2017060152A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015219558.9A DE102015219558B4 (de) 2015-10-09 2015-10-09 Antriebsbatteriebaugruppe
DE102015219558.9 2015-10-09

Publications (1)

Publication Number Publication Date
WO2017060152A1 true WO2017060152A1 (fr) 2017-04-13

Family

ID=57047226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/073283 WO2017060152A1 (fr) 2015-10-09 2016-09-29 Ensemble batterie de traction

Country Status (2)

Country Link
DE (1) DE102015219558B4 (fr)
WO (1) WO2017060152A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111788709A (zh) * 2018-02-20 2020-10-16 保时捷股份公司 用于具有功率电子部件的模块化电池的机械和热力系统
CN113363625A (zh) * 2020-03-03 2021-09-07 保时捷股份公司 用于能够电力驱动的机动车辆的电池组件

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018033880A2 (fr) 2016-08-17 2018-02-22 Shape Corp. Structure de support et de protection de batterie pour un véhicule
US11214137B2 (en) 2017-01-04 2022-01-04 Shape Corp. Vehicle battery tray structure with nodal modularity
US10483510B2 (en) 2017-05-16 2019-11-19 Shape Corp. Polarized battery tray for a vehicle
WO2018213306A1 (fr) 2017-05-16 2018-11-22 Shape Corp. Plateau à batterie de véhicule ayant un composant à base de bac
US11211656B2 (en) 2017-05-16 2021-12-28 Shape Corp. Vehicle battery tray with integrated battery retention and support feature
US11088412B2 (en) 2017-09-13 2021-08-10 Shape Corp. Vehicle battery tray with tubular peripheral wall
DE112018005556T5 (de) 2017-10-04 2020-06-25 Shape Corp. Batterieträger-bodenbaugruppe für elektrofahrzeuge
WO2019169080A1 (fr) 2018-03-01 2019-09-06 Shape Corp. Système de refroidissement intégré à un bac de batterie de véhicule
US11688910B2 (en) 2018-03-15 2023-06-27 Shape Corp. Vehicle battery tray having tub-based component

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US20080090137A1 (en) * 2006-10-13 2008-04-17 Derrick Scott Buck Battery pack with integral cooling and bussing devices
DE102008010837A1 (de) * 2008-02-23 2009-08-27 Daimler Ag Batterie mit einer in einem Batteriegehäuse angeordneten Wärmeleitplatte zum Temperieren der Batterie
DE102008059947A1 (de) * 2008-12-02 2010-06-10 Daimler Ag Batterie mit einer in einem Batteriegehäuse angeordneten Wärmeleitplatte und daran direkt montierten elektronischen Bauelementen zum Temperieren der Batterie
DE102014103095A1 (de) * 2014-03-07 2015-09-10 Conti Temic Microelectronic Gmbh Energiespeichereinheit und Batteriesystem

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DE10223782B4 (de) * 2002-05-29 2005-08-25 Daimlerchrysler Ag Batterie mit wenigstens einer elektrochemischen Speicherzelle und einer Kühleinrichtung und Verwendung einer Batterie
DE102013011692A1 (de) * 2013-07-12 2015-01-29 Daimler Ag Energiespeichervorrichtung mit einer Temperiervorrichtung, Verfahren zum Herstellen der Energiespeichervorrichtung
DE102013218663A1 (de) * 2013-09-18 2015-03-19 Robert Bosch Gmbh Vorrichtung zur Regelung einer Temperatur eines Energiesystems
US20160118700A1 (en) * 2014-10-24 2016-04-28 Ford Global Technologies, Llc Traction battery thermal management

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080090137A1 (en) * 2006-10-13 2008-04-17 Derrick Scott Buck Battery pack with integral cooling and bussing devices
DE102008010837A1 (de) * 2008-02-23 2009-08-27 Daimler Ag Batterie mit einer in einem Batteriegehäuse angeordneten Wärmeleitplatte zum Temperieren der Batterie
DE102008059947A1 (de) * 2008-12-02 2010-06-10 Daimler Ag Batterie mit einer in einem Batteriegehäuse angeordneten Wärmeleitplatte und daran direkt montierten elektronischen Bauelementen zum Temperieren der Batterie
DE102014103095A1 (de) * 2014-03-07 2015-09-10 Conti Temic Microelectronic Gmbh Energiespeichereinheit und Batteriesystem

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111788709A (zh) * 2018-02-20 2020-10-16 保时捷股份公司 用于具有功率电子部件的模块化电池的机械和热力系统
CN111788709B (zh) * 2018-02-20 2023-08-18 保时捷股份公司 电池机械和热力系统及制造方法、电池模块、模块化电池
CN113363625A (zh) * 2020-03-03 2021-09-07 保时捷股份公司 用于能够电力驱动的机动车辆的电池组件

Also Published As

Publication number Publication date
DE102015219558B4 (de) 2022-03-17
DE102015219558A1 (de) 2017-04-27

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