DE19528692A1 - Cooling element for power components - Google Patents

Cooling element for power components

Info

Publication number
DE19528692A1
DE19528692A1 DE1995128692 DE19528692A DE19528692A1 DE 19528692 A1 DE19528692 A1 DE 19528692A1 DE 1995128692 DE1995128692 DE 1995128692 DE 19528692 A DE19528692 A DE 19528692A DE 19528692 A1 DE19528692 A1 DE 19528692A1
Authority
DE
Germany
Prior art keywords
cooling element
cooling
power components
cooling fins
element according
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Withdrawn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
DE1995128692
Other languages
German (de)
Inventor
Elmar Schmidt
Juergen Dipl Ing Landsgesell
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE1995128692 priority Critical patent/DE19528692A1/en
Priority to PCT/DE1996/001151 priority patent/WO1997006657A1/en
Publication of DE19528692A1 publication Critical patent/DE19528692A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H02B1/565—Cooling; Ventilation for cabinets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • 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
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing

Abstract

In a cooling element for power components of electric equipment, a plurality of cooling fins (2) are arranged on at least one of the surfaces of the cooling element (1). In order to use more intensively the air flow (4, 5) on the cooling fins (2), the cooling fins (2) are arranged at a predetermined angle transversely to the main axis of orientation of the power components (3).

Description

Stand der TechnikState of the art

Die Erfindung betrifft ein Kühlelement für Leistungsbautei­ le eines elektrischen Geräts nach dem Oberbegriff des An­ spruchs 1.The invention relates to a cooling element for power components le of an electrical device according to the preamble of the An saying 1.

Es sind Kühlelemente für Leistungsbauteile, insbesondere Halbleiterbauelemente eines elektronischen Geräts bekannt, die an der Oberfläche, an der die Abwärme des Leistungsbau­ teils an die Umgebungsluft abgegeben wird, Kühlrippen zur Vergrößerung der wirksamen Oberfläche aufweisen. Gegebenen­ falls sind diese Kühlrippen so ausgerichtet, daß ein Luft­ strom frontal auf die Kühlrippen auftrifft oder auch in der Längsrichtung der Kühlrippen an diesen vorbeistreicht um eine verbesserte Wärmeabgabe zu erreichen.There are cooling elements for power components, in particular Semiconductor components of an electronic device known those on the surface where the waste heat from the power building is partially released into the ambient air, cooling fins for Have enlargement of the effective surface. Given  if these cooling fins are aligned so that air current hits the cooling fins frontally or in the Longitudinal direction of the cooling fins sweeps past them to achieve an improved heat emission.

Vorteile der ErfindungAdvantages of the invention

Das erfindungsgemäße Kühlelement der oben angegebenen Art ist mit den kennzeichnenden Merkmalen des Anspruchs 1 ins­ besondere dadurch vorteilhaft, daß durch die relativ zur Hauptanordnungsachse der Leistungsbauelemente und ev. auch zu einem vorhandenen Luftstrom schräg angeordneten Kühlrip­ pen eine verbesserte Anströmung erfolgt. Hierdurch findet eine intensivere Ableitung der Abwärme an den Kühlrippen statt und es wird somit eine Minimierung der mittleren Tem­ peratur des Luftstroms zwischen jeweils zwei benachbarten Kühlrippen dieser Einbauanlage erreicht.The cooling element of the type specified above is with the characterizing features of claim 1 ins particularly advantageous in that the relative to Main arrangement axis of the power components and possibly also to an existing air flow at an angle arranged cooling rib pen an improved flow occurs. This takes place more intensive dissipation of the waste heat at the cooling fins instead and there is thus a minimization of the mean tem temperature of the air flow between two neighboring ones Cooling fins reached this installation.

Der vorgegebene Winkel der Kühlrippen ist dabei vorzugswei­ se so gewählt, daß zumindest teilweise der jeweilige Luft­ strom zwischen zwei Kühlrippen an maximal zwei Oberflächen­ bereichen mit Leistungsbauteilen vorbeigeführt ist. Beson­ ders vorteilhaft ist es auch, wenn bei einer Anwendung in der Kraftfahrzeugelektronik der Fahrtwind des Kraftfahrzeu­ ges als vorhandener Luftstrom von außen herangeführt wird.The predetermined angle of the cooling fins is preferably two se chosen so that at least partially the respective air current between two cooling fins on a maximum of two surfaces areas with power components. Especially it is also advantageous if in an application in the motor vehicle electronics the wind of the motor vehicle is brought in as the existing air flow from the outside.

Vorteilhafte Ausführungsformen sind in den Unteransprüchen angegeben.Advantageous embodiments are in the subclaims specified.

Zeichnungdrawing

Ein Ausführungsbeispiel des erfindungsgemäßen Kühlelements wird anhand der Zeichnung erläutert, wobei die Figur eine Draufsicht auf die Kühlrippen eines Kühlelements zeigt.An embodiment of the cooling element according to the invention is explained with reference to the drawing, the figure being a Top view of the cooling fins of a cooling element shows.

Beschreibung des AusführungsbeispielsDescription of the embodiment

In der Fig. 1 ist ein Kühlelement 1 einer elektronischen Einbauanlage dargestellt, daß eine Mehrzahl von Kühlrippen 2 auf einer Oberfläche trägt. Das Kühlelement 1 mit den Kühlrippen 2 ist beispielsweise ein Aluminium-Druckgußteil, daß eventuell aus einem größeren Element in den geforderten Maßen herausgeschnitten ist.In Fig. 1, a cooling element 1 of an electronic installation is shown that carries a plurality of cooling fins 2 on one surface. The cooling element 1 with the cooling fins 2 is, for example, an aluminum die-cast part that may have been cut out of a larger element in the required dimensions.

Auf der, der Oberfläche mit den Kühlrippen 2 abgekehrten Seite des Kühlelements 1, sind Leistungsbauteile 3 ange­ bracht, z. B. geschraubt oder geklebt, deren Verlust- bzw. Abwärme vom Kühlelement 1 abgeführt werden soll. Ein Luft­ strom 4, der beispielsweise durch den Fahrtwind eines Fahr­ zeugs oder auch durch Wärmekonvektion erzeugt worden ist, wird somit zwischen die Kühlrippen 2 geleitet und überwie­ gend an maximal zwei Leistungsbauteilen 3 auf der abgekehr­ ten Seite des Kühlelements 1 vorbeigeführt, bevor dieser Luftstrom am anderen Ende der Kühlrippen 2 wieder heraus­ tritt.On the, the surface with the cooling fins 2 side of the cooling element 1 , power components 3 are introduced , z. B. screwed or glued, the waste or waste heat from the cooling element 1 is to be dissipated. An air flow 4 , which has been generated, for example, by the wind of a vehicle or by heat convection, is thus passed between the cooling fins 2 and predominantly guided past a maximum of two power components 3 on the side of the cooling element 1 before this air flow on the other end of the cooling fins 2 comes out again.

Claims (7)

1. Kühlelement für Leistungsbauteile eines elektrischen Ge­ räts, mit
  • - einer Mehrzahl von Kühlrippen (2), die auf mindestens einer der Oberflächen des Kühlelements (1) angeordnet sind, dadurch gekennzeichnet, daß
  • - die Kühlrippen (2) in einem vorgegebenen Winkel quer zu der Hauptanordnungsachse der Leistungsbauteile (3) angeordnet sind.
1. Cooling element for power components of an electrical device, with
  • - A plurality of cooling fins ( 2 ) which are arranged on at least one of the surfaces of the cooling element ( 1 ), characterized in that
  • - The cooling fins ( 2 ) are arranged at a predetermined angle transversely to the main arrangement axis of the power components ( 3 ).
2. Kühlelement nach Anspruch 1, dadurch gekennzeichnet, daß
  • - bei einem, in einem Fahrzeug angebrachten elektrischen Ge­ rät, der Fahrtwind als Luftstrom (4) an die Kühlrippen (2) herangeführt ist.
2. Cooling element according to claim 1, characterized in that
  • - In one, mounted in a vehicle electrical Ge advises, the airstream as an air stream ( 4 ) to the cooling fins ( 2 ).
3. Kühlelement nach Anspruch 1, dadurch gekennzeichnet, daß
  • - der Luftstrom (4) im wesentlichen durch Wärmekonvektion er­ zeugt ist.
3. Cooling element according to claim 1, characterized in that
  • - The air flow ( 4 ) is essentially generated by heat convection.
4. Kühlelement nach einem der Ansprüche 1 bis 3, dadurch ge­ kennzeichnet, daß
  • - das Kühlelement (1) mitsamt den Kühlrippen (2) ein Alumini­ um-Druckgußteil ist.
4. Cooling element according to one of claims 1 to 3, characterized in that
  • - The cooling element ( 1 ) together with the cooling fins ( 2 ) is an aluminum die-cast part.
5. Kühlelement nach einem der Ansprüche 1 bis 4, dadurch ge­ kennzeichnet, daß
  • - die Kühlrippen (2) auf einer der Oberflächen, den Lei­ stungsbauteilen (2) gegenüberliegend angeordnet sind.
5. Cooling element according to one of claims 1 to 4, characterized in that
  • - The cooling fins ( 2 ) on one of the surfaces, the performance components ( 2 ) are arranged opposite one another.
6. Kühlelement nach einem der Ansprüche 1 bis 5, dadurch ge­ kennzeichnet, daß
  • - die Leistungsbauteile (2) aufgeschraubt sind.
6. Cooling element according to one of claims 1 to 5, characterized in that
  • - The power components ( 2 ) are screwed on.
7. Kühlelement nach einem der Ansprüche 1 bis 5, dadurch ge­ kennzeichnet, daß
  • - die Leistungsbauteile (2) aufgeklebt sind.
7. Cooling element according to one of claims 1 to 5, characterized in that
  • - The power components ( 2 ) are glued on.
DE1995128692 1995-08-04 1995-08-04 Cooling element for power components Withdrawn DE19528692A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1995128692 DE19528692A1 (en) 1995-08-04 1995-08-04 Cooling element for power components
PCT/DE1996/001151 WO1997006657A1 (en) 1995-08-04 1996-06-28 Cooling element for power components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995128692 DE19528692A1 (en) 1995-08-04 1995-08-04 Cooling element for power components

Publications (1)

Publication Number Publication Date
DE19528692A1 true DE19528692A1 (en) 1997-02-06

Family

ID=7768702

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995128692 Withdrawn DE19528692A1 (en) 1995-08-04 1995-08-04 Cooling element for power components

Country Status (2)

Country Link
DE (1) DE19528692A1 (en)
WO (1) WO1997006657A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2836622A1 (en) * 2002-02-25 2003-08-29 Johnson Contr Automotive Elect Car electronics electronic components, e.g. DC-DC converter, cooling radiator having plane face/protruding fins with electronic support section attached/electronic components mounted alignment direction/offset protruding fin direction.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010121428A1 (en) * 2009-04-23 2010-10-28 Sapa Profiles Holding Ab Method of manufacturing heatsink with angled fins

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780798A (en) * 1972-10-30 1973-12-25 Gte Automatic Electric Lab Inc Air directing heat sink mounting of electrical components
DE9107076U1 (en) * 1991-06-08 1991-08-22 Standard Elektrik Lorenz Ag, 7000 Stuttgart, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2836622A1 (en) * 2002-02-25 2003-08-29 Johnson Contr Automotive Elect Car electronics electronic components, e.g. DC-DC converter, cooling radiator having plane face/protruding fins with electronic support section attached/electronic components mounted alignment direction/offset protruding fin direction.

Also Published As

Publication number Publication date
WO1997006657A1 (en) 1997-02-20

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