WO2007137668A1 - Device for cooling electrical elements - Google Patents

Device for cooling electrical elements Download PDF

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Publication number
WO2007137668A1
WO2007137668A1 PCT/EP2007/003819 EP2007003819W WO2007137668A1 WO 2007137668 A1 WO2007137668 A1 WO 2007137668A1 EP 2007003819 W EP2007003819 W EP 2007003819W WO 2007137668 A1 WO2007137668 A1 WO 2007137668A1
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WO
WIPO (PCT)
Prior art keywords
electrical elements
bottom piece
electrical
cup
cup part
Prior art date
Application number
PCT/EP2007/003819
Other languages
German (de)
French (fr)
Inventor
Herbert Damsohn
Tobias Isermeyer
Karl-Gerd Krumbach
Klaus Luz
Conrad Pfender
Original Assignee
Behr Gmbh & 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 & Co. Kg filed Critical Behr Gmbh & Co. Kg
Priority to EP07724746A priority Critical patent/EP2030271A1/en
Publication of WO2007137668A1 publication Critical patent/WO2007137668A1/en

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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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • H01M6/5038—Heating or cooling of cells or batteries
    • 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
    • H01M10/625—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
    • H01M10/64—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
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/65—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
    • 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
    • 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
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • 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
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • 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
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to a device for cooling electrical elements, in particular of a motor vehicle according to the preamble of claim 1.
  • components which comprise a plurality of electrical elements, with high converted power necessitating cooling of the electrical elements.
  • electrical elements are hybrid vehicles, electric vehicles, fuel cell vehicles and generally vehicles in which there is at least one electric auxiliary drive.
  • US Pat. No. 6,448,741 B1 describes an arrangement for holding cylindrical batteries, of which in each case several are arranged next to one another in a plane. Cooling air may be blown through the housing by a fan, with the airflow flowing substantially tangentially along the curved side surfaces of the batteries.
  • the elements are each received in a cup part, wherein the cup part is held on the bottom body.
  • the cup part is held on the bottom body.
  • the cup part preferably has an outer wall, wherein at least one channel for flowing through air is provided between the respective electrical element and the outer wall, so that, overall, a good heat exchange is achieved by guiding the cooling air along the side walls.
  • the channel thereby helically around the element in order to promote the heat exchange on. It may be one or more helices with any slope of the helixes as required.
  • turbulence-generating means are formed on the channel for further optimization of the cooling capacity.
  • the cup part consists essentially of an insulating material, in particular plastic.
  • the cup part is preferably designed as an injection molded part. 06-B-66
  • the cup part may be molded onto a respective electrical element, whereby the holder of the elements in the cup parts is particularly safe.
  • the cup part may comprise a sleeve part which consists in particular of metal, wherein the electrical element is held in a non-positive manner by the sleeve part.
  • the sleeve part then has slots for guiding the air flow and for the simultaneous formation of resilient retaining tongues, wherein the sleeve part is surrounded by an electrically insulating outer wall.
  • the cup part has a substantially cylindrical shape, so that common electrical elements can be accommodated in it.
  • the cup part via resilient means in particular in the manner of a clip, can be fixed to the bottom piece. This simplifies the assembly and replacement of individual or groups of electrical elements for maintenance purposes.
  • a plurality of the cup parts are formed together as a one-piece molded part, in particular as an injection molded part, which simplifies the production.
  • the bottom piece consists essentially of plastic and is designed in particular as a plastic injection-molded part, which allows a low weight and low production costs.
  • the bottom piece may also be formed as a metal part, in particular made of aluminum.
  • the bottom piece is a
  • Heat exchanger for cooling the air flow It preferably comprises
  • Bottom piece thereby as an evaporator of a refrigerant circuit, in particular a vehicle air conditioning, formed. This makes it possible to achieve a very high cooling capacity of the electrical elements in a small space.
  • the air flow is preferably cooled before flowing through the bottom piece by means of a heat exchanger, in particular an evaporator of an air conditioning system of the motor vehicle.
  • a defined in particular via stop means distance is provided between the electrical elements and the bottom piece.
  • positioning and electrical insulation of the element can be ensured in a simple manner.
  • a gap between the bottom surface of the element and bottom piece can be achieved, which serves to optimize the air flow.
  • parts of the bottom surface of the element may escape into the gap if the element bursts due to overheating or other malfunction.
  • a predetermined breaking point may be provided on the bottom surface, in the region of which an internal contacting wire of the element is connected. The bursting of the floor area e.g. as a result of overheating thus leads to an interruption of the circuit.
  • At least some of the electrical elements electrochemical accumulators, in particular lithium-ion batteries. These elements have a high power density and give corresponding thermal problems.
  • at least some of the electrical elements may be capacitors. Even modern capacitors, which are also to be understood as so-called “supercaps”, can provide very high power densities and experience a corresponding internal heating.
  • the electrical elements have a substantially cylindrical shape, wherein the bottom surface is an end face of the cylinder. This is a common design, which also ensures a good distribution of the heat generated in the element.
  • the electrical elements preferably have a metal outer wall which is at an electrical potential of the element. This makes it possible to release the heat of the element well to the outside, although there is a need for good electrical insulation of the elements of surrounding parts.
  • the outer walls can achieve very high potential differences compared to the vehicle mass. It is therefore particularly preferable for the electrical elements to be electrically insulated from the bottom piece, with the dielectric strength of the insulation corresponding to at least about 1000V.
  • the bottom piece has two opposite sides with openings, wherein on each of the sides a plurality of electrical elements is arranged and can be flown through the openings with air. This makes it possible to cool a particularly large number of elements for a given area of the bottom piece, with the bottom area being directly flown with cooling air, in particular for each of the elements.
  • Fig. 1 shows a three-dimensional representation of a partially assembled device according to the invention.
  • Fig. 2 shows a schematic plan view of the device of Fig. 1.
  • Fig. 3 shows a sectional view through the device of Fig. 2 along the line AA. 06-B-066 24.05.06 G-IP / - 6 -
  • FIG. 4 shows a detailed view of the detail B from FIG. 3.
  • the embodiment of a device according to the invention for cooling electrical elements comprises a bottom piece 1, which is designed as a hollow plastic plate.
  • the plastic plate consists of two composite plate halves 1a, 1b, which are each produced as an injection molded part.
  • the cavity 2 provided between the plate halves 2 is fed via unillustrated ports from a blower with cooled air.
  • the air flows to their cooling previously on a separate, not shown vaporizer along a vehicle air conditioning.
  • each of the plate halves 1 a, 1 b a plurality of circular openings 3 are provided, from which the cooled air can escape from the cavity 3.
  • a cup part 4 is fixed, wherein in FIG. 1 and FIG. 2, for reasons of clarity, some of the openings 3 do not have a cup part 4.
  • the bottom piece has cup parts 4 on each of the plate halves 1a, 1b, so that the device is essentially symmetrical with respect to a plane of symmetry of the bottom piece 1 (see FIG. 3).
  • the cup parts of the first plate half 1 a and the second plate half 1 b are each arranged or aligned in a plane which is parallel to the plate-shaped bottom piece 1.
  • the cup parts 4 are of their shape forth hollow cylinder, which are open to the bottom piece 1 each side facing away, so that a cylindrical electrical element 5 is tightly inserted into the cup parts.
  • the cup parts are made of plastic, so that due to the elasticity of the material a non-positive and sufficiently strong support of the inserted element 5 is given.
  • the cup parts 4 have a closed outer wall 14, on whose inside helical ribs 6 are formed. By a pair of ribs 6, a helical channel 7 is thus separated, which between an outer wall 5 b of the inserted egg 06-B-066 24.05.06 G-IP / - 7 -
  • each cup part 4 comprises six ribs 6 and channels 7.
  • the present embodiment of the channels 7 by ribs 6 has the advantage of high structural rigidity at the same time thin wall thickness of the cup parts 4. This material is saved and a large packing density of the elements 5 allows.
  • the cup parts have on the side of the bottom piece 1 a bottom 8, which has an opening 3 overlapping opening 9.
  • the opening 9 has a collar 10 projecting into the openings 3, on each of which three elastic clips 11 offset by 120 ° are formed.
  • These undercut with not shown tongues the edge of the openings 3, so that the cup parts snap into place by simply plugging in the openings 3 and are securely held on the bottom piece 1.
  • the cup parts 4 and 11 clips depending on the material and shape only once or can be used several times.
  • the electrical elements 5 are lithium-ion accumulators, which are partially connected in series with each other.
  • the elements 5 have a metallic outer wall comprising a bottom surface facing the bottom piece 5a and a cylindrical side surface 5b.
  • the metallic outer wall is located on one of the two potentials of the element and, due to the serial connection, can be at a potential of more than 1000 V with respect to the ground potential of the vehicle.
  • the elements 5 have at their end face facing away from the bottom piece 1 via (not shown) contact terminals for interconnection.
  • the cup parts 4 have in the edge region of their bottoms 8 at the base of the ribs 6 gradations 12, which serve as a stop means for the inserted element 5. This leaves between the bottom surface 5a of the fully inserted element 5 and the bottom 8 of the cup part 4 a defined distance or cavity 13 (see FIG. 4). Through this cavity 13, the cooling air can flow from the opening 3 to the peripheral channels 7. 06-B-066 24.05.06 G-IP / - 8 -
  • the bottom 5a of the elements 5 can over bursting over a predetermined breaking point (not shown) and dodge into the cavity 13. This evasion allows the interruption of an internal contacting of the outer wall of the element 5, which is provided in the region of this predetermined breaking point. As a result, the circuit is interrupted, so that further overheating and major consequential damage is avoided.

Abstract

The invention relates to a device for cooling electrical elements, in particular those of a motor vehicle encompassing a multitude of electrical elements (5), each of which has a bottom surface (5a) and a side surface (5b), with the bottom surfaces (5a) predominantly arranged in one plane, with a fed air stream circulating around the electrical elements (5) for cooling purposes, wherein the electrical elements (5) are arranged on a substrate (1) predominantly parallel to the plane and provided with openings (3), wherein the air stream can flow through the substrate (1).

Description

BEHR GmbH & Co. KG Mauserstraße 3, 70469 Stuttgart BEHR GmbH & Co. KG Mauserstrasse 3, 70469 Stuttgart
Vorrichtung zur Kühlung elektrischer ElementeDevice for cooling electrical elements
Die Erfindung betrifft eine Vorrichtung zur Kühlung elektrischer Elemente insbesondere eines Kraftfahrzeugs nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for cooling electrical elements, in particular of a motor vehicle according to the preamble of claim 1.
Insbesondere bei modernen Kraftfahrzeugen werden Komponenten eingesetzt, die eine Vielzahl elektrischer Elemente umfassen, wobei hohe umgesetzte Leistung eine Kühlung der elektrischen Elemente erforderlich macht. Beispiele für den Einsatz solcher Elemente sind Hybrid-Fahrzeuge, Elektro- fahrzeuge, Brennstoffzellenfahrzeuge und allgemein Fahrzeuge, bei denen zumindest ein elektrischer Hilfsantrieb vorliegt.In particular, in modern motor vehicles, components are used which comprise a plurality of electrical elements, with high converted power necessitating cooling of the electrical elements. Examples of the use of such elements are hybrid vehicles, electric vehicles, fuel cell vehicles and generally vehicles in which there is at least one electric auxiliary drive.
US 6,448,741 B1 beschreibt eine Anordnung zur Halterung von zylindrischen Batterien, von denen jeweils mehrere in einer Ebene nebeneinander angeordnet sind. Kühlluft kann von einem Gebläse durch das Gehäuse geblasen werden, wobei der Luftstrom im Wesentlichen tangential an den gebogenen Seitenflächen der Batterien entlang strömt.US Pat. No. 6,448,741 B1 describes an arrangement for holding cylindrical batteries, of which in each case several are arranged next to one another in a plane. Cooling air may be blown through the housing by a fan, with the airflow flowing substantially tangentially along the curved side surfaces of the batteries.
Es ist die Aufgabe der Erfindung, eine Vorrichtung zur Kühlung elektrischer Elemente insbesondere eines Kraftfahrzeugs anzugeben, die bei hoher Betriebssicherheit eine gute Kühlung gewährleistet und eine hohe Packungsdichte der elektrischen Elemente ermöglicht. - -It is the object of the invention to provide a device for cooling electrical elements, in particular of a motor vehicle, which ensures good reliability with high reliability and enables a high packing density of the electrical elements. - -
24.05.06 G-IP/ - 2 -24.05.06 G-IP / - 2 -
Diese Aufgabe wird für eine eingangs genannte Vorrichtung erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Die Durchströmbarkeit des Bodenkörpers in Verbindung mit der Anordnung der Bodenflächen der elektrischen Elemente in einer zum Bodenkörper paralle- len Ebene ermöglicht eine optimierte Verteilung der Kühlluft auf die Elemente. Zudem ist eine besonders gute Kühlung gerade der Bodenflächen der Elemente erzielbar, die bei vielen Anwendungen und Formgebungen, insbesondere bei zylindrischen Seitenflächen der Elemente, kühlungskritische Bereiche sind.This object is achieved for an aforementioned device according to the invention with the characterizing features of claim 1. The flowability of the bottom body in conjunction with the arrangement of the bottom surfaces of the electrical elements in a plane parallel to the bottom body level allows an optimized distribution of the cooling air to the elements. In addition, a particularly good cooling of just the bottom surfaces of the elements can be achieved, which are cooling critical areas in many applications and shapes, especially in cylindrical side surfaces of the elements.
In vorteilhafter Weiterbildung sind die Elemente jeweils in einem Becherteil aufgenommen sind, wobei das Becherteil an dem Bodenkörper gehalten ist. Hierdurch ist die Festlegung insbesondere standardisierter elektrischer ele- mente an dem Bodenteil sowie die Führung der Kühlluft vom Bodenkörper zum Element auf einfache Weise ermöglicht.In an advantageous embodiment, the elements are each received in a cup part, wherein the cup part is held on the bottom body. In this way, it is possible to fix in particular standardized electrical elements on the base part and to guide the cooling air from the base body to the element in a simple manner.
Bevorzugt weist dabei das Becherteil eine Außenwandung auf, wobei zwischen dem jeweiligen elektrischen Element und der Außenwandung zumindest ein Kanal zur Durchströmung mit Luft vorgesehen ist, so dass insge- samt ein guter Wärmeaustausch durch die Führung der Kühlluft entlang der Seitenwände gegeben ist. Besonders vorteilhaft verläuft der Kanal dabei wendeiförmig um das Element, um den Wärmeaustausch weiter zu begünstigen. Es kann sich um eine oder mehrere Wendeln mit je nach Anforderung beliebiger Steigung der Wendeln handeln. In vorteilhafter Detailgestaltung sind an dem Kanal zur weiteren Optimierung der Kühlleistung turbulenzerzeugende Mittel ausgebildet.In this case, the cup part preferably has an outer wall, wherein at least one channel for flowing through air is provided between the respective electrical element and the outer wall, so that, overall, a good heat exchange is achieved by guiding the cooling air along the side walls. Particularly advantageous is the channel thereby helically around the element in order to promote the heat exchange on. It may be one or more helices with any slope of the helixes as required. In an advantageous detailed design, turbulence-generating means are formed on the channel for further optimization of the cooling capacity.
Bevorzugt besteht das Becherteil im Wesentlichen aus einem isolierenden Material, insbesondere Kunststoff. Neben einer elektrischen Isolation der Elemente ist dadurch auch eine leichte und kostengünstige Bauweise gegeben. Kostengünstig ist das Becherteil bevorzugt als Spritzgussteil ausgebildet. 06-B- 66Preferably, the cup part consists essentially of an insulating material, in particular plastic. In addition to an electrical insulation of the elements thereby a lightweight and inexpensive construction is given. Inexpensive, the cup part is preferably designed as an injection molded part. 06-B-66
24.05.06 G-IP/ - 3 -24.05.06 G-IP / - 3 -
Alternativ oder ergänzend kann das Becherteil an ein jeweiliges elektrisches Element angespritzt sein, wodurch die Halterung der Elemente in den Becherteilen besonders sicher ist.Alternatively or additionally, the cup part may be molded onto a respective electrical element, whereby the holder of the elements in the cup parts is particularly safe.
Weiterhin alternativ kann das Becherteil ein insbesondere aus Metall bestehendes Hülsenteil umfassen, wobei das elektrische Element kraftschlüssig von dem Hülsenteil gehalten ist. Das Hülsenteil weist dann Schlitzungen zur Führung des Luftstroms und zur gleichzeitigen Ausbildung von federnden Haltezungen auf, wobei das Hülsenteil von einer elektrisch isolierenden Au- ßenwandung umgeben ist. Insgesamt wird hierdurch eine erhöhte Wärmeleitfähigkeit entlang der Seitenwandung des Elements erzielt, was insbesondere für elektrische Elemente mit nur dünnen Seitenwänden vorteilhaft ist.As an alternative, the cup part may comprise a sleeve part which consists in particular of metal, wherein the electrical element is held in a non-positive manner by the sleeve part. The sleeve part then has slots for guiding the air flow and for the simultaneous formation of resilient retaining tongues, wherein the sleeve part is surrounded by an electrically insulating outer wall. Overall, this achieves an increased thermal conductivity along the side wall of the element, which is advantageous in particular for electrical elements with only thin side walls.
Allgemein bevorzugt hat das Becherteil eine im Wesentlichen zylindrische Form, so dass übliche elektrische Elemente in ihm aufnehmbar sind.Generally, the cup part has a substantially cylindrical shape, so that common electrical elements can be accommodated in it.
Bei einer besonders bevorzugten Ausführungsform ist das Becherteil über federnde Mittel, insbesondere nach Art eines Clips, an dem Bodenstück festlegbar. Dies vereinfacht die Montage sowie den Austausch einzelner oder Gruppen von elektrischen Elementen zu Wartungszwecken.In a particularly preferred embodiment, the cup part via resilient means, in particular in the manner of a clip, can be fixed to the bottom piece. This simplifies the assembly and replacement of individual or groups of electrical elements for maintenance purposes.
Bei einer vorteilhaften Abwandlung sind eine Mehrzahl der Becherteile zusammen als einstückiges Formteil, insbesondere als Spritzgussteil, ausgebildet, was die Herstellung vereinfacht.In an advantageous modification, a plurality of the cup parts are formed together as a one-piece molded part, in particular as an injection molded part, which simplifies the production.
Allgemein bevorzugt besteht das Bodenstück im Wesentlichen aus Kunststoff und ist insbesondere als Kunststoff-Spritzgussteil ausgebildet, was ein geringes Gewicht und niedrige Herstellungskosten ermöglicht. In alternativer Ausgestaltung kann das Bodenstück auch als Metallteil, insbesondere aus Aluminium, ausgebildet sein.Generally preferably, the bottom piece consists essentially of plastic and is designed in particular as a plastic injection-molded part, which allows a low weight and low production costs. In an alternative embodiment, the bottom piece may also be formed as a metal part, in particular made of aluminum.
In einer weiteren bevorzugten Ausführungsform ist das Bodenstück einIn a further preferred embodiment, the bottom piece is a
Wärmetauscher zur Kühlung des Luftstroms. Bevorzugt umfasst es dabeiHeat exchanger for cooling the air flow. It preferably comprises
Mittel zur Durchleitung eines Kältemittels, um die Wärmetauscherfunktion möglichst effektiv und kleinbauend zu erfüllen. Besonders vorteilhaft ist das - - 24.05.06 G-IP/ - 4 -Means for passing a refrigerant to meet the heat exchanger function as effectively and physically small. This is particularly advantageous - - 24.05.06 G-IP / - 4 -
Bodenstück dabei als Verdampfer eines Kältekreises, insbesondere einer Fahrzeug-Klimaanlage, ausgebildet. Hierdurch lässt sich auf kleinem Bauraum eine sehr hohe Kühlleistung der elektrischen Elemente erreichen.Bottom piece thereby as an evaporator of a refrigerant circuit, in particular a vehicle air conditioning, formed. This makes it possible to achieve a very high cooling capacity of the electrical elements in a small space.
Allgemein bevorzugt wird zur Verbesserung der Kühlleistung der Luftstrom vor einer Durchströmung des Bodenstücks mittels eines Wärmetauschers, insbesondere eines Verdampfers einer Klimaanlage des Kraftfahrzeugs, gekühlt.Generally, to improve the cooling performance, the air flow is preferably cooled before flowing through the bottom piece by means of a heat exchanger, in particular an evaporator of an air conditioning system of the motor vehicle.
In vorteilhafter Ausgestaltung ist zwischen den elektrischen Elementen und dem Bodenstück ein insbesondere über Anschlagsmittel definierter Abstand vorgesehen. Hierdurch lassen sich Positionierung und elektrische Isolation des Elements auf einfache Weise sicherstellen. Zudem lässt sich so ein Zwischenraum zwischen Bodenfläche des Elements und Bodenstück erzielen, der einer Optimierung des Luftstroms dient. Zudem können Teile der Bodenfläche des Elements in den Zwischenraum ausweichen, falls das Element in Folge Überhitzung oder sonstiger Fehlfunktion platzt. Hierzu kann an der Bodenfläche eine Sollbruchstelle vorgesehen sein, in deren Bereich ein innerer Kontaktierungsdraht des Elements angeschlossen ist. Das Bersten der Bodenfläche z.B. in Folge einer Überhitzung führt somit zu einer Unterbrechung des Stromkreises.In an advantageous embodiment, a defined in particular via stop means distance is provided between the electrical elements and the bottom piece. As a result, positioning and electrical insulation of the element can be ensured in a simple manner. In addition, a gap between the bottom surface of the element and bottom piece can be achieved, which serves to optimize the air flow. In addition, parts of the bottom surface of the element may escape into the gap if the element bursts due to overheating or other malfunction. For this purpose, a predetermined breaking point may be provided on the bottom surface, in the region of which an internal contacting wire of the element is connected. The bursting of the floor area e.g. as a result of overheating thus leads to an interruption of the circuit.
Allgemein vorteilhaft sind zumindest einige der elektrischen Elemente elektrochemische Akkumulatoren, insbesondere Lithium-Ionen-Batterien. Diese Elemente haben eine hohe Leistungsdichte und ergeben entsprechende thermische Probleme. Alternativ oder ergänzend können zumindest einige der elektrischen Elemente Kondensatoren sein. Auch moderne Kondensatoren, worunter auch so genannte „Supercaps" zu verstehen sind, können sehr hohe Leistungsdichten bereitstellen und erfahren eine entsprechende innere Erwärmung.Generally advantageous are at least some of the electrical elements electrochemical accumulators, in particular lithium-ion batteries. These elements have a high power density and give corresponding thermal problems. Alternatively or additionally, at least some of the electrical elements may be capacitors. Even modern capacitors, which are also to be understood as so-called "supercaps", can provide very high power densities and experience a corresponding internal heating.
Besonders vorteilhaft weisen die elektrischen Elemente eine im Wesentlichen zylindrische Form auf, wobei die Bodenfläche eine stirnseitige Fläche des Zylinders ist. Dies ist eine übliche Bauform, die zudem eine gute Vertei- lung der im Element entstehenden Wärme sicherstellt. Die nicht einfache 06-B-066 24.05.06 G-IP/ - 5 -Particularly advantageously, the electrical elements have a substantially cylindrical shape, wherein the bottom surface is an end face of the cylinder. This is a common design, which also ensures a good distribution of the heat generated in the element. The not easy 06-B-066 24.05.06 G-IP / - 5 -
Ableitung der Wärme von den zylindrischen Wänden bedingt eine besonders gute Kombinierbarkeit der zylindrischen Form der Elemente mit der vorliegenden Erfindung.Derivation of the heat from the cylindrical walls requires a particularly good combinability of the cylindrical shape of the elements with the present invention.
Bevorzugt weisen die elektrischen Elemente eine metallene Außenwandung auf, die auf einem elektrischen Potential des Elements liegt. Hierdurch lässt sich die Wärme des Elements gut nach Außen abgeben, wobei allerdings die Notwendigkeit einer guten elektrischen Isolierung der Elemente von umgebenden Teilen besteht. Bei Serienschaltung vieler einzelner Elemente kön- nen die Außenwände sehr hohe Potentialdifferenzen gegenüber der Fahrzeugmasse erreichen. Insbesondere bevorzugt sind daher die elektrischen Elemente gegenüber dem Bodenstück elektrisch isoliert, wobei die Durchschlagsfestigkeit der Isolation wenigstens etwa 1000V entspricht.The electrical elements preferably have a metal outer wall which is at an electrical potential of the element. This makes it possible to release the heat of the element well to the outside, although there is a need for good electrical insulation of the elements of surrounding parts. When connecting many individual elements in series, the outer walls can achieve very high potential differences compared to the vehicle mass. It is therefore particularly preferable for the electrical elements to be electrically insulated from the bottom piece, with the dielectric strength of the insulation corresponding to at least about 1000V.
Bei einem bevorzugten Ausführungsbeispiel ist es vorgesehen, dass das Bodenstück zwei gegenüberliegende Seiten mit Öffnungen aufweist, wobei auf jeder der Seiten eine Mehrzahl von elektrischen Elementen angeordnet ist und über die Öffnungen mit Luft beströmbar ist. Hierdurch lässt sich bei gegebener Fläche des Bodenstücks eine besonders große Anzahl von EIe- menten kühlen, wobei insbesondere bei jedem der Elemente die Bodenfläche unmittelbar mit kühlender Luft beströmt wird.In a preferred embodiment, it is provided that the bottom piece has two opposite sides with openings, wherein on each of the sides a plurality of electrical elements is arranged and can be flown through the openings with air. This makes it possible to cool a particularly large number of elements for a given area of the bottom piece, with the bottom area being directly flown with cooling air, in particular for each of the elements.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus dem nachfolgend beschriebenen Ausführungsbeispiel sowie aus den abhängigen An- Sprüchen.Further advantages and features of the invention will become apparent from the embodiment described below and from the dependent claims.
Nachfolgend wird ein bevorzugtes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung beschrieben und anhand der anliegenden Zeichnungen näher erläutert.Hereinafter, a preferred embodiment of a device according to the invention will be described and explained in more detail with reference to the accompanying drawings.
Fig. 1 zeigt eine räumliche Darstellung einer teilweise montierten erfindungsgemäßen Vorrichtung.Fig. 1 shows a three-dimensional representation of a partially assembled device according to the invention.
Fig. 2 zeigt eine schematische Draufsicht auf die Vorrichtung aus Fig. 1. Fig. 3 zeigt eine Schnittansicht durch die Vorrichtung aus Fig. 2 entlang der Linie A-A. 06-B-066 24.05.06 G-IP/ - 6 -Fig. 2 shows a schematic plan view of the device of Fig. 1. Fig. 3 shows a sectional view through the device of Fig. 2 along the line AA. 06-B-066 24.05.06 G-IP / - 6 -
Fig. 4 zeigt eine Detailansicht des Ausschnitts B aus Fig. 3.4 shows a detailed view of the detail B from FIG. 3.
Die Ausführungsform einer erfindungsgemäßen Vorrichtung zur Kühlung e- lektrischer Elemente umfasst ein Bodenstück 1 , dass als hohle Kunststoff- platte ausgebildet ist. Die Kunststoffplatte besteht aus zwei zusammengesetzten Plattenhälften 1a, 1b, die jeweils als Spritzgussteil hergestellt werden.The embodiment of a device according to the invention for cooling electrical elements comprises a bottom piece 1, which is designed as a hollow plastic plate. The plastic plate consists of two composite plate halves 1a, 1b, which are each produced as an injection molded part.
Der zwischen den Plattenhälften vorgesehene Hohlraum 2 (siehe Fig. 3) wird über nicht dargestellte Anschlüsse von einem Gebläse mit gekühlter Luft beschickt. Die Luft strömt zu ihrer Kühlung zuvor an einem separaten, nicht dargestellten Verdampfer einer Fahrzeug-Klimaanlage entlang.The cavity 2 provided between the plate halves 2 (see FIG. 3) is fed via unillustrated ports from a blower with cooled air. The air flows to their cooling previously on a separate, not shown vaporizer along a vehicle air conditioning.
In jeder der Plattenhälften 1a, 1 b sind mehrere kreisförmige Öffnungen 3 vorgesehen, aus denen die gekühlte Luft aus dem Hohlraum 3 austreten kann. In jeder der Öffnungen 3 ist jeweils ein Becherteil 4 festgelegt, wobei in Fig. 1 und Fig. 2 aus Gründen der Übersichtlichkeit einige der Öffnungen 3 kein Becherteil 4 aufweisen.In each of the plate halves 1 a, 1 b, a plurality of circular openings 3 are provided, from which the cooled air can escape from the cavity 3. In each of the openings 3, in each case a cup part 4 is fixed, wherein in FIG. 1 and FIG. 2, for reasons of clarity, some of the openings 3 do not have a cup part 4.
Das Bodenstück weist an jeder der Plattenhälften 1a, 1 b Becherteile 4 auf, so dass die Vorrichtung bezüglich einer Symmetrieebene des Bodenstücks 1 im Wesentlichen symmetrisch aufgebaut ist (siehe Fig. 3). Die Becherteile der ersten Plattenhälfte 1a und der zweiten Plattenhälfte 1 b sind jeweils in einer Ebene angeordnet bzw. ausgerichtet, die zu dem plattenförmigen Bo- denstück 1 parallel ist.The bottom piece has cup parts 4 on each of the plate halves 1a, 1b, so that the device is essentially symmetrical with respect to a plane of symmetry of the bottom piece 1 (see FIG. 3). The cup parts of the first plate half 1 a and the second plate half 1 b are each arranged or aligned in a plane which is parallel to the plate-shaped bottom piece 1.
Die Becherteile 4 sind von ihrer Form her Hohlzylinder, die zu der dem Bodenstück 1 jeweils abgewandten Seite hin offen sind, so dass ein zylindrisches elektrisches Element 5 in die Becherteile stramm einschiebbar ist. Die Becherteile bestehen aus Kunststoff, so dass aufgrund der Elastizität des Materials eine kraftschlüssige und ausreichend starke Halterung des eingeschobenen Elements 5 gegeben ist. Die Becherteile 4 haben eine geschlossene Außenwand 14, auf deren Innenseite wendeiförmige Rippen 6 ausgebildet sind. Durch je zwei Rippen 6 wird somit ein wendeiförmiger Kanal 7 abgetrennt, der zwischen einer Außenwand 5b des eingeschobenen EIe- 06-B-066 24.05.06 G-IP/ - 7 -The cup parts 4 are of their shape forth hollow cylinder, which are open to the bottom piece 1 each side facing away, so that a cylindrical electrical element 5 is tightly inserted into the cup parts. The cup parts are made of plastic, so that due to the elasticity of the material a non-positive and sufficiently strong support of the inserted element 5 is given. The cup parts 4 have a closed outer wall 14, on whose inside helical ribs 6 are formed. By a pair of ribs 6, a helical channel 7 is thus separated, which between an outer wall 5 b of the inserted egg 06-B-066 24.05.06 G-IP / - 7 -
ments 5 und der Außenwandung 14 des hohlzylindrischen Becherteils 4 verläuft. Insgesamt umfasst jedes Becherteil 4 sechs Rippen 6 und Kanäle 7. Die vorliegende Ausbildung der Kanäle 7 durch Rippen 6 hat den Vorteil einer hohen Gestaltsteifigkeit bei zugleich geringer Wanddicke der Becherteile 4. Hierdurch wird Material gespart und eine große Packungsdichte der Elemente 5 ermöglicht.ment 5 and the outer wall 14 of the hollow cylindrical cup part 4 extends. Overall, each cup part 4 comprises six ribs 6 and channels 7. The present embodiment of the channels 7 by ribs 6 has the advantage of high structural rigidity at the same time thin wall thickness of the cup parts 4. This material is saved and a large packing density of the elements 5 allows.
Die Becherteile haben auf der Seite des Bodenstücks 1 einen Boden 8, der eine mit der Öffnung 3 überdeckende Durchbrechung 9 aufweist. Die Durch- brechung 9 hat einen in die Öffnungen 3 hineinragenden Kragen 10, an dem jeweils drei um 120° versetzte federnde Clips 11 ausgeformt sind. Diese unterschneiden mit nicht dargestellten Zungen den Rand der Öffnungen 3, so dass die Becherteile durch einfaches Einstecken an den Öffnungen 3 einrasten und sicher an dem Bodenstück 1 gehalten sind. Zugleich lassen sich zu Wartungszwecke, etwa bei Ausfall einzelner elektrischer Elemente 5, einzelne Becherteile wieder herausnehmen, wobei die Becherteile 4 bzw. Clipse 11 je nach Material und Ausformung nur einmal oder mehrfach verwendbar sind.The cup parts have on the side of the bottom piece 1 a bottom 8, which has an opening 3 overlapping opening 9. The opening 9 has a collar 10 projecting into the openings 3, on each of which three elastic clips 11 offset by 120 ° are formed. These undercut with not shown tongues the edge of the openings 3, so that the cup parts snap into place by simply plugging in the openings 3 and are securely held on the bottom piece 1. At the same time can be removed for maintenance purposes, such as failure of individual electrical elements 5, individual cup parts again, the cup parts 4 and 11 clips depending on the material and shape only once or can be used several times.
Vorliegend sind die elektrischen Elemente 5 Lithium-Ionen-Akkumulatoren, die teilweise seriell miteinander verschaltet sind. Die Elemente 5 haben eine metallische Außenwand, die eine dem Bodenstück zugewandte, kreisförmige Bodenfläche 5a und eine zylindrische Seitenfläche 5b umfasst. Die metallische Außenwand liegt auf einem der beiden Potentiale des Elements und kann aufgrund der seriellen Verschaltung auf einem Potential von mehr als 1000 V gegenüber dem Massepotential des Fahrzeugs liegen. Die Elemente 5 verfügen an ihrer dem Bodenstück 1 abgewandten Stirnfläche über (nicht dargestellte) Kontaktklemmen zur Verschaltung.In the present case, the electrical elements 5 are lithium-ion accumulators, which are partially connected in series with each other. The elements 5 have a metallic outer wall comprising a bottom surface facing the bottom piece 5a and a cylindrical side surface 5b. The metallic outer wall is located on one of the two potentials of the element and, due to the serial connection, can be at a potential of more than 1000 V with respect to the ground potential of the vehicle. The elements 5 have at their end face facing away from the bottom piece 1 via (not shown) contact terminals for interconnection.
Die Becherteile 4 haben im Randbereich ihrer Böden 8 am Ansatz der Rippen 6 Abstufungen 12, die als Anschlagsmittel für das eingeschobene Element 5 dienen. Hierdurch verbleibt zwischen der Bodenfläche 5a des vollständig eingeschobenen Elements 5 und dem Boden 8 des Becherteils 4 ein definierter Abstand bzw. Hohlraum 13 (siehe Fig. 4). Durch diesen Hohlraum 13 kann die Kühlluft von der Öffnung 3 zu den randseitigen Kanälen 7 strö- 06-B-066 24.05.06 G-IP/ - 8 -The cup parts 4 have in the edge region of their bottoms 8 at the base of the ribs 6 gradations 12, which serve as a stop means for the inserted element 5. This leaves between the bottom surface 5a of the fully inserted element 5 and the bottom 8 of the cup part 4 a defined distance or cavity 13 (see FIG. 4). Through this cavity 13, the cooling air can flow from the opening 3 to the peripheral channels 7. 06-B-066 24.05.06 G-IP / - 8 -
men, so dass insbesondere die Bodenfläche 5a des Elements 5 besonders gut gekühlt wird. Zudem kann der Boden 5a der Elemente 5 über bei Überhitzung über eine Sollbruchstelle (nicht dargestellt) bersten und in den Hohlraum 13 ausweichen. Dieses Ausweichen ermöglicht die Unterbrechung ei- ner inneren Kontaktierung der Außenwand des Elements 5, die im Bereich dieser Sollbruchstelle vorgesehen ist. Hierdurch wird der Stromkreis unterbrochen, so dass eine weitere Überhitzung und größere Folgeschäden vermieden sind. men, so that in particular the bottom surface 5 a of the element 5 is particularly well cooled. In addition, the bottom 5a of the elements 5 can over bursting over a predetermined breaking point (not shown) and dodge into the cavity 13. This evasion allows the interruption of an internal contacting of the outer wall of the element 5, which is provided in the region of this predetermined breaking point. As a result, the circuit is interrupted, so that further overheating and major consequential damage is avoided.

Claims

06-B-066 24.05.06 G-IP/ - 9 -P a t e n t a n s p r ü c h e 06-B-066 24.05.06 G-IP / - 9 -Patent Claims
1. Vorrichtung zur Kühlung elektrischer Elemente, insbesondere eines Kraftfahrzeugs, umfassend eine Mehrzahl von elektrischen Elementen (5), die jeweils eine Bodenfläche (5a) und eine Seitenfläche (5b) aufweisen, wobei die Bodenflächen (5a) im wesentlichen in einer Ebene ausgerichtet sind, wobei ein zugeleiteter Luftstrom die elektrischen Elemente (5) zu1. A device for cooling electrical elements, in particular of a motor vehicle, comprising a plurality of electrical elements (5), each having a bottom surface (5a) and a side surface (5b), wherein the bottom surfaces (5a) are aligned substantially in one plane , wherein a supplied air flow to the electrical elements (5) to
Kühlzwecken umströmt, dadurch gekennzeichnet, dass die elektrischen Elemente (5) an einem zu der Ebene im Wesentlichen parallelen und mit Öffnungen (3) versehenen Bodenkörper (1 ) angeordnet sind, wobei der Bodenkörper (1 ) durch den Luftstrom durchströmbar ist.Cooling purposes flows around, characterized in that the electrical elements (5) on a plane substantially parallel and provided with openings (3) bottom body (1) are arranged, wherein the bottom body (1) can be flowed through by the air flow.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die E- lemente (5) jeweils in einem Becherteil (4) aufgenommen sind, wobei das Becherteil (4) an dem Bodenkörper (1 ) gehalten ist.2. Device according to claim 1, characterized in that the ele- ments (5) are each received in a cup part (4), wherein the cup part (4) on the bottom body (1) is held.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das Becherteil (4) eine Außenwandung (14) aufweist, wobei zwischen dem jeweiligen elektrischen Element (5) und der Außenwandung (14) zu- mindest ein Kanal (7) zur Durchströmung mit Luft vorgesehen ist.3. A device according to claim 2, characterized in that the cup part (4) has an outer wall (14), wherein between the respective electrical element (5) and the outer wall (14) at least one channel (7) for the passage of air is provided.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Kanal (7) wendeiförmig um das Element (5) verläuft. 06-B-066 24.05.06 G-IP/ - 10 -4. Apparatus according to claim 3, characterized in that the channel (7) helically around the element (5). 06-B-066 24.05.06 G-IP / - 10 -
5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass an dem Kanal (7) turbulenzerzeugende Mittel ausgebildet sind.5. Apparatus according to claim 3 or 4, characterized in that on the channel (7) turbulence generating means are formed.
6. Vorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekenn- zeichnet, dass das Becherteil (4) im Wesentlichen aus einem isolierenden Material, insbesondere Kunststoff, besteht.6. Device according to one of claims 2 to 5, characterized in that the cup part (4) consists essentially of an insulating material, in particular plastic.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Becherteil (4) als Spritzgussteil ausgebildet ist.7. Apparatus according to claim 6, characterized in that the cup part (4) is designed as an injection molded part.
8. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass das Becherteil (4) an ein jeweiliges elektrisches Element (5) angespritzt ist.8. Apparatus according to claim 6 or 7, characterized in that the cup part (4) is injection-molded onto a respective electrical element (5).
9. Vorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass das Becherteil (4) ein insbesondere aus Metall bestehendes Hülsenteil umfasst, wobei das elektrische Element kraftschlüssig von dem Hülsenteil gehalten ist.9. Device according to one of claims 2 to 5, characterized in that the cup part (4) comprises a particular metal existing sleeve part, wherein the electrical element is frictionally held by the sleeve part.
10. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass das Hülsenteil Schlitzungen zur Führung des Luftstroms und zur gleichzeitigen Ausbildung von federnden Haltezungen Anlage an dem elektrischen Element aufweist, wobei das Hülsenteil von einer elektrisch isolierenden Außenwandung umgeben ist.10. The device according to claim 8, characterized in that the sleeve part slits for guiding the air flow and for the simultaneous formation of resilient retaining tongues bearing on the electrical element, wherein the sleeve part is surrounded by an electrically insulating outer wall.
11. Vorrichtung nach einem der Ansprüche 2 bis 10, dadurch gekennzeichnet, dass das Becherteil (4) eine im wesentlichen zylindrische Form hat.11. Device according to one of claims 2 to 10, characterized in that the cup part (4) has a substantially cylindrical shape.
12. Vorrichtung nach einem der Ansprüche 2 bis 11 , dadurch gekennzeichnet, dass das Becherteil (4) über federnde Mittel, insbesondere nach Art eines Clips (11 ), gegenüber dem Bodenstück (1 ) festlegbar ist. 06-B-066 24.05.06 G-IP/ - 11 -12. Device according to one of claims 2 to 11, characterized in that the cup part (4) via resilient means, in particular in the manner of a clip (11), relative to the bottom piece (1) can be fixed. 06-B-066 24.05.06 G-IP / - 11 -
13. Vorrichtung nach einem der Ansprüche 2 bis 12, dadurch gekennzeichnet, dass eine Mehrzahl der Becherteile (4) zusammen als einstückiges Formteil, insbesondere als Spritzgussteil, ausgebildet sind.13. Device according to one of claims 2 to 12, characterized in that a plurality of the cup parts (4) together as a one-piece molded part, in particular as an injection molded part, are formed.
14. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Bodenstück (1) im Wesentlichen aus Kunststoff besteht und insbesondere als Kunststoff-Spritzgussteil ausgebildet ist.14. Device according to one of the preceding claims, characterized in that the bottom piece (1) consists essentially of plastic and in particular is designed as a plastic injection molded part.
15. Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass das Bodenstück (1 ) als Metallteil, insbesondere aus Aluminium, ausgebildet ist.15. Device according to one of claims 1 to 13, characterized in that the bottom piece (1) as a metal part, in particular of aluminum, is formed.
16. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Bodenstück (1 ) als Wärmetauscher zur Kühlung des Luftstroms ausgebildet ist.16. Device according to one of the preceding claims, characterized in that the bottom piece (1) is designed as a heat exchanger for cooling the air flow.
17. Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass das Bodenstück (1 ) Mittel zur Durchleitung eines Kältemittels umfasst.17. The apparatus according to claim 16, characterized in that the bottom piece (1) comprises means for passing a refrigerant.
18. Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, dass das Bodenstück (1 ) als Verdampfer eines Kältekreises, insbesondere einer Fahrzeug-Klimaanlage, ausgebildet ist.18. The apparatus according to claim 17, characterized in that the bottom piece (1) is designed as an evaporator of a refrigeration circuit, in particular a vehicle air conditioning system.
19. Vorrichtung nach einem vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Luftstrom vor einer Durchströmung des Bodenstücks (1 ) mittels eines Wärmetauschers, insbesondere eines Verdampfers einer Klimaanlage des Kraftfahrzeugs, kühlbar ist.19. The device according to any preceding claim, characterized in that the air flow before a flow through the bottom piece (1) by means of a heat exchanger, in particular an evaporator of an air conditioning system of the motor vehicle, can be cooled.
20. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen den elektrischen Elementen (5) und dem Bodenstück (1 ) ein insbesondere über Anschlagmittel (12) definierter Abstand (13) vorgesehen ist. 06-B-066 24.05.06 G-IP/ - 12 -20. Device according to one of the preceding claims, characterized in that between the electrical elements (5) and the bottom piece (1) in particular a stop means (12) defined distance (13) is provided. 06-B-066 24.05.06 G-IP / - 12 -
21. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zumindest einige der elektrischen Elemente (5) elektrochemische Akkumulatoren sind, insbesondere Lithium-Ionen- Batterien.21. Device according to one of the preceding claims, characterized in that at least some of the electrical elements (5) are electrochemical accumulators, in particular lithium-ion batteries.
22. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zumindest einige der elektrischen Elemente (5) Kondensatoren sind.22. Device according to one of the preceding claims, characterized in that at least some of the electrical elements (5) are capacitors.
23. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die elektrischen Elemente (5) eine im wesentlichen zylindrische Form aufweisen, wobei die Bodenfläche (5a) eine stirnseitige Fläche des Zylinders ist.23. Device according to one of the preceding claims, characterized in that the electrical elements (5) have a substantially cylindrical shape, wherein the bottom surface (5 a) is an end face of the cylinder.
24. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die elektrischen Elemente (5) eine metallene Außenwandung aufweisen, die auf einem elektrischen Potential des E- lements liegt.24. Device according to one of the preceding claims, characterized in that the electrical elements (5) have a metal outer wall, which lies at an electrical potential of the element.
25. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die elektrischen Elemente (5) gegenüber dem Bodenstück (1 ) elektrisch isoliert sind, wobei die Isolation insbesondere gegenüber Spannungen von wenigstens etwa 1000 V durchbruchsfest ist.25. Device according to one of the preceding claims, characterized in that the electrical elements (5) relative to the bottom piece (1) are electrically insulated, wherein the insulation is particularly resistant to breakdown of voltages of at least about 1000 V breakdown.
26. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Bodenstück (1 ) zwei gegenüberliegende Seiten (1a, 1 b) mit Öffnungen (3) aufweist, wobei auf jeder der Seiten 1a, 1 b) eine Mehrzahl von elektrischen Elementen (5) angeordnet ist und über die Öffnungen (3) mit Luft beströmbar ist. 26. Device according to one of the preceding claims, characterized in that the bottom piece (1) has two opposite sides (1a, 1 b) with openings (3), wherein on each of the sides 1a, 1 b) a plurality of electrical elements ( 5) is arranged and via the openings (3) is flowable with air.
PCT/EP2007/003819 2006-06-01 2007-04-30 Device for cooling electrical elements WO2007137668A1 (en)

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EP07724746A EP2030271A1 (en) 2006-06-01 2007-04-30 Device for cooling electrical elements

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