EP2647082A1 - Dispositif destiné à guider un fluide de refroidissement et système de refroidissement pour refroidir un composant électrique - Google Patents

Dispositif destiné à guider un fluide de refroidissement et système de refroidissement pour refroidir un composant électrique

Info

Publication number
EP2647082A1
EP2647082A1 EP11775809.4A EP11775809A EP2647082A1 EP 2647082 A1 EP2647082 A1 EP 2647082A1 EP 11775809 A EP11775809 A EP 11775809A EP 2647082 A1 EP2647082 A1 EP 2647082A1
Authority
EP
European Patent Office
Prior art keywords
fluid
cooling
electrical component
lid
guiding
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Withdrawn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
EP11775809.4A
Other languages
German (de)
English (en)
Inventor
Lars Ludwig
Michael Moser
Matthias Stripf
Hans-Georg Herrmann
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2647082A1 publication Critical patent/EP2647082A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • 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
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H01M10/6565—Gases with forced flow, e.g. by blowers with recirculation or U-turn in the flow path, i.e. back and forth
    • 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
    • H01M10/6567—Liquids
    • 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 device for guiding a cooling fluid for cooling an electrical component and to a cooling system for cooling an electrical component.
  • DE 10 2008 059 952 A1 shows a battery with several battery cells and a cooling device for tempering the battery cells.
  • the cooling device comprises a heat exchanger, which contacts the battery cells at contact points for heat exchange and is designed to be electrically insulating at least at the contact points to the battery cells. It is the object of the present invention to provide an improved apparatus for guiding a cooling fluid and an improved cooling system for cooling an electrical component.
  • the present invention is based on the finding that with a realization of a flexible thermal connection of a cooler to a component to be cooled without the use of additional heat conducting material, a cost-effective method for producing a cooler with simultaneous electrical isolation can be created,
  • an efficiency of the radiator can be increased.
  • cheaper manufacturing process bring a weight advantage by reducing the use of materials and a reduction of passive thermal mass, a further cost reduction.
  • the present invention provides an apparatus for guiding a cooling fluid for cooling an electrical component, the apparatus comprising: a fluid guiding chamber for guiding the cooling fluid; and an at least partially flexible cover, which fluid-tight closes the Fluidbowungshunt and forms a heat transfer area for heat conduction between the cooling fluid and the electrical component.
  • the device may be a heat exchanger or cooler.
  • the electrical component may be a battery.
  • the fluid may be a liquid or gaseous coolant.
  • the fluid guiding chamber may e.g. a shape of a rectangular flat trough having two openings, so that the cooling fluid entering through one of the openings in the fluid guide chamber, an interior of the fluid guide chamber to flow through and then escape through the other of the openings again from the fluid guide chamber.
  • the fluid guiding chamber may also have other geometric shapes than a rectangular shape.
  • the lid may be made flat and have a contour corresponding to a contour of the fluid guiding chamber, so that the lid, e.g.
  • an inside of the lid can be in direct contact with the cooling fluid.
  • An outer side of the lid can serve as a bearing surface for the electrical component to be cooled.
  • the electrical component can be arranged on the heat transfer region.
  • the heat transfer region may extend over an entire area or a portion of a surface of the lid.
  • the lid can be made of plastic or metal.
  • the lid may be flexible or elastic at least in a partial area which may correspond to the heat transfer area. By pressurizing the inside, the lid can form a curvature. If the material forming the lid is elastic, the lid side can buckle and expand.
  • the cover may be deformed in the direction of the electrical component by a pressure of the fluid in the fluid guiding chamber. be bar.
  • the cover in a region not connected to the fluid guidance chamber, the cover can form one or more bulges, whereby the surface of the cover can adapt to a base surface of the electrical component and a heat transfer surface between the cover and the component can advantageously increase.
  • the efficiency of the cooling can be improved.
  • the deformation can be easily provided by the operation of the device by introducing the cooling fluid into the fluid guiding chamber.
  • the lid can be a foil.
  • a film has a very low weight.
  • the film can adapt very well to a contour of the component to be cooled due to the low material thickness when acted upon by the coolant. As a result, the cooling performance can be improved.
  • the lid may be formed of an electrically insulating material. Consequently, no separate component is needed for isolation. The device can thus be made faster, easier and with less weight.
  • the cover may be flexible in a region corresponding to a geometry of the electrical component and may be rigid in a remaining region.
  • the lid may be flexible in a central region in a size of a bottom surface of the component to be cooled and may be inflexible in a peripheral region surrounding the central region, which is not covered by the component.
  • a side of the cover facing the electrical component may be structured.
  • an area of the heat transfer area of the cover can advantageously be increased and the cooling be increased accordingly.
  • a safer positioning of the electronic component on the lid of the device can be made possible due to the higher coefficient of friction given by the structuring.
  • one of the electrical component facing side of the lid may have an adhesive coating. This offers the advantage "that is to be cooled electrical component can be connected easily and without additional elements to the device.
  • the fluid guiding chamber can be connected to the lid in a form-fitting and / or non-positive and / or material-locking manner.
  • the cover may have a plurality of spaced passage openings in an edge region, and side walls of the fluid guide chamber may have bores with internal threads at corresponding positions, so that the cover and the fluid guide chamber can be positively and / or non-positively connected by means of suitable screws.
  • the cover and the fluid guide chamber can be materially connected via a chemical or thermal joining process of the contacting Matertal Schemee.
  • a combination of positive / non-positive and material-locking connection can ensure simultaneous robustness and fluid-tightness of the device.
  • the fluid guiding chamber may have an interior space with at least one partition wall for guiding the cooling fluid.
  • the interior can be divided into individual areas, which can each be traversed by the cooling fluid.
  • the partition wall may extend in a plurality of turns in the interior of the fluid guiding chamber to form an optimum flow path for the cooling fluid.
  • the partition may be disposed in the interior so as to move the cooling fluid away from an inlet opening into the fluid guiding chamber meandering through the interior and eventually to an outlet opening from the fluid guide chamber » without cooling fluid being able to flow back to the inlet opening. It can also be arranged a plurality of individual walls in the fluid guide chamber, and form a suitable system for fluid guidance.
  • the dividing wall may be formed of the same material as the fluid guiding chamber or of another suitable material.
  • the fluid guiding chamber may also be designed to be at least partially flexible.
  • the lid and the fluid guide chamber made of plastic is formed.
  • the lid may be partially joined, preferably welded, to the fluid guiding chamber.
  • the film is heatable.
  • the film is provided with particles or has a wire mesh for improving the thermal conductivity.
  • the underside of the fluid guiding chamber is likewise designed as a film according to the invention.
  • the fluid guide chamber forms an insert, which is closed fluid-tight at the top and bottom by a film.
  • bilateral cooling is possible by this embodiment.
  • the present invention further provides a cooling system for cooling an electrical component, comprising: the electrical component; and a device according to the invention for guiding a cooling fluid, wherein the electrical component is arranged on the heat transfer region of the cover of the device. In this way, the electrical component be cooled over the heat transfer area formed by the lid, when the fluid guide chamber leads a cooling fluid.
  • the cooling system may e.g. used in an electric vehicle.
  • the electrical component may be, for example, an accumulator for operating the electric vehicle.
  • the electrical component may e.g. be arranged with a bottom surface on the lid of the device. If the device flows through a cooling fluid, the cover may buckle in the direction of the electrical component because of its material-related flexibility or elasticity.
  • the lid can optimally adapt to contours of a bottom portion of the electrical component and create the greatest possible heat transfer area with simultaneous electrical insulation.
  • Fig. 1 is a perspective view of an apparatus for guiding a cooling fluid, according to an embodiment of the present invention.
  • FIG. 2 is a sectional view of a cooling system for cooling an electrical component according to an embodiment of the present invention
  • Fig. 3 is a perspective view of an apparatus for guiding a cooling fluid, according to another embodiment of the present invention.
  • the cooler offers a flexible contact surface, which adapts to a geometry of the component to be cooled.
  • Fig. 1 shows in an exploded perspective view an embodiment of a device 100 for guiding a Kühtfluids. Shown are a fluid guide chamber 1 10 and a lid 120,
  • the fluid guide chamber 1 10 is formed as a rectangular flat trough.
  • An inlet opening and an outlet opening for the cooling fluid are arranged at a distance from one another in a side wall of the fluid guide chamber 110, to which, for example, a cooling fluid supply line or a cooling fluid discharge line can be connected to form a coolant circuit.
  • a bottom inner surface of the fluid guide chamber 1 10 has a plurality of walls 130, whose height corresponds to a height of the side walls of the fluid guide chamber 1 10. For clarity, only one of the walls 130 is provided with a reference numeral. Except for one, the walls 130 have a U-shape.
  • coolant can be conducted in parallel streams from the inlet opening through the entire interior of the fluid guiding chamber to the outlet opening and thereby perform the heat exchange with an electrical component arranged on the cover via the cover 120.
  • a straight wall connected between the inlet opening and the outlet opening with the side wall prevents cooling fluid from flowing from the inlet opening directly to the outlet opening.
  • long side walls of the fluid guiding chamber 110 have spaced opposite bores for connecting the fluid guiding chamber 110 to the lid 120.
  • the fluid guide chamber 1 10 a plurality of stiffening ribs, which extend over extend a bottom outer region to an upper edge of the side walls of the fluid guide chamber 1 10,
  • the cover 120 is flat and has a rectangular shape corresponding to the fluid guide chamber 110.
  • Long side walls of the lid 120 have spaced opposite passage openings corresponding to the bores of the fluid guide chamber 110, such that the lid 120 is e.g. can be connected by screws with the fluid guide chamber 1 10.
  • FIG. 2 shows a section of a section of a cooling system 200 for cooling an electrical component, according to an exemplary embodiment of the present invention. Shown is the device 100 of Fig. 1 in the assembled state and a bottom portion of an electrical component 210. In the illustration in Fig. 2 can be clearly seen that the cover 120 of the device 100 between areas in which the cover 120 with the Fluid guide chamber 1 10 is due to a prevailing within the device 100 cooling fluid pressure in the direction of a bottom surface of the electrical component to be cooled 210 bulges.
  • the cooler 100 consists of at least one molded part 110, which represents the fluid guide of the cooling medium, and at least one foil 120 made of plastic or metal.
  • the film 120 represents the contact surface to the component to be cooled and is connected to the molded part 110 in a form-locking, force-fitting or material-locking manner or via a chemical or thermal joining process.
  • the surface of the film 120 may be both structured and smooth.
  • An additional adhesive coating is optional.
  • the film 120 flexes to the surface of the component to be cooled 210.
  • the flexible region of the film 120 may be adapted to a geometry of the component 210 to be cooled.
  • a degree of Connection can be influenced by the joining force between the component to be cooled and the film 120.
  • different types of flow are possible, for example, an I, U, S or W flow or with multiple deflections.
  • Various types of connections to the radiator 100 are possible, such as hose nozzle, screwed or quick-release connections.
  • a composite plate allows multiple fluid connections ⁇ 1 to X).
  • heat-sealing materials such as films, coatings or casting or adhesive masses can be used.
  • FIG. 3 shows a perspective exploded view of a further embodiment of a device 100 for guiding a cooling fluid. Shown are a fluid guide chamber 1 10 and a cover 120. The main difference from the embodiment of FIG. 1 is now that both the fluid guide chamber 1 10 and the lid 120 are formed of a flexible material. According to this embodiment, the device comprises at least one film 120 formed as a cover and a film 1 10 formed as a fluid guide chamber, which are partially welded together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

Dispositif (100) destiné à guider un fluide de refroidissement pour refroidir un composant électrique, qui comporte une chambre de guidage de fluide (110) destinée à guider le fluide de refroidissement et un couvercle (120) au moins souple par endroits qui ferme de manière étanche la chambre de guidage de fluide (110) et qui forme une zone de transfert de chaleur permettant le transfert de la chaleur entre le fluide de refroidissement et le composant électrique.
EP11775809.4A 2010-11-30 2011-10-26 Dispositif destiné à guider un fluide de refroidissement et système de refroidissement pour refroidir un composant électrique Withdrawn EP2647082A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010062218 2010-11-30
DE102011104713 2011-06-06
PCT/EP2011/068799 WO2012072348A1 (fr) 2010-11-30 2011-10-26 Dispositif destiné à guider un fluide de refroidissement et système de refroidissement pour refroidir un composant électrique

Publications (1)

Publication Number Publication Date
EP2647082A1 true EP2647082A1 (fr) 2013-10-09

Family

ID=44863057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11775809.4A Withdrawn EP2647082A1 (fr) 2010-11-30 2011-10-26 Dispositif destiné à guider un fluide de refroidissement et système de refroidissement pour refroidir un composant électrique

Country Status (5)

Country Link
US (1) US9546827B2 (fr)
EP (1) EP2647082A1 (fr)
CN (1) CN203503759U (fr)
DE (1) DE102011084000A1 (fr)
WO (1) WO2012072348A1 (fr)

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Also Published As

Publication number Publication date
DE102011084000A1 (de) 2012-05-31
US9546827B2 (en) 2017-01-17
US20130250512A1 (en) 2013-09-26
CN203503759U (zh) 2014-03-26
WO2012072348A1 (fr) 2012-06-07

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