WO2012004493A1 - Device for cooling at least one element comprising at least one electronic component - Google Patents

Device for cooling at least one element comprising at least one electronic component Download PDF

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Publication number
WO2012004493A1
WO2012004493A1 PCT/FR2011/051502 FR2011051502W WO2012004493A1 WO 2012004493 A1 WO2012004493 A1 WO 2012004493A1 FR 2011051502 W FR2011051502 W FR 2011051502W WO 2012004493 A1 WO2012004493 A1 WO 2012004493A1
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WO
WIPO (PCT)
Prior art keywords
tubes
series
cooling device
heat
sole
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PCT/FR2011/051502
Other languages
French (fr)
Inventor
Lionel Calegari
Original Assignee
Renault S.A.S.
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Application filed by Renault S.A.S. filed Critical Renault S.A.S.
Publication of WO2012004493A1 publication Critical patent/WO2012004493A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427—Cooling by change of state, e.g. use of heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the invention relates to an arrangement for cooling at least one element comprising at least one electronic component.
  • the invention relates more particularly to an arrangement for cooling at least one element comprising at least one electronic component, in particular a power control module of an energy conversion system, for example a supply of at least one electric machine, of a motor vehicle, which comprises successively in a vertical direction; the element, a soleplate for fixing the element, and a cooling device, or cooler, supplying an external means of dissipation of the calories, or dissipator.
  • a power control module of an energy conversion system for example a supply of at least one electric machine, of a motor vehicle, which comprises successively in a vertical direction
  • the element a soleplate for fixing the element
  • a cooling device, or cooler supplying an external means of dissipation of the calories, or dissipator.
  • cooling means comprises a single series of tubes which are traversed by a cooling fluid.
  • water is the fluid with the maximum capacity for extracting calories.
  • the water is limited to use in a temperature range of 0 ° C to 200 ° C.
  • This design also has many problems because the methanol is usable only in the temperature range of -120 ° C to + 120 ° C.
  • the maximum heat extraction capacity of methanol is substantially two times lower than that of water, which requires a doubling of the exchange surface of the circuits.
  • the invention overcomes this disadvantage by providing a cooling device or cooler provided with two different series of tubes, each series being traversed by a different fluid capable of covering part of the temperature range in which the cooling device is intended to be used.
  • the invention proposes an arrangement of the type described above, characterized in that the cooling device comprises at least a first series of parallel longitudinal tubes traversed by a first heat transfer fluid and a second series of parallel longitudinal tubes traversed by a second heat transfer fluid distinct from the first heat transfer fluid.
  • the tubes of each series are uniformly distributed facing the surface of the sole
  • the tubes of the second series are arranged in the same horizontal plane as those of the first series,
  • the tubes of the first series are arranged in a first horizontal plane arranged in the immediate vicinity of the sole and the tubes of the second series are arranged in a second horizontal plane remote vertically offset from the first plane,
  • the tubes of each series are spaced parallel in the same interval and at least the tubes of the second series are wider than said interval, to ensure the at least partial overlap of the intervals of the tubes of the first series by the tubes of the second; series,
  • each tube of the second series is centered on an interval separating two consecutive tubes of the first series to ensure the complete overlap of the intervals of the tubes of the first series by the tubes of the second series,
  • the tubes are of substantially oblong section, in particular rectangular,
  • the first heat transfer fluid is water and the second heat transfer fluid is a non-aqueous fluid, in particular methanol,
  • the tubes are made of a material chosen from copper or aluminum,
  • the invention also relates to an arrangement comprising a cooling device of the type described above, the soleplate of which is connected to at least one element comprising at least one electronic component, in particular a power control module of an energy conversion system. a motor vehicle, and the two sets of tubes are connected to an external means of heat dissipation called "heat pipe” for discharging the heat produced by said element.
  • FIG. 1 is a general sectional view of an arrangement according to the invention.
  • FIG. 2 is a detail sectional view of a cooling device for the arrangement of FIG. 1 according to a first embodiment of the invention
  • FIG. 3 is a detail sectional view of a cooling device according to a second embodiment of the invention.
  • FIG. 4 is a detail sectional view cooling device according to a third embodiment of the invention.
  • FIG. 1 shows an arrangement 10 for cooling at least one element 12 comprising at least one electronic component 14.
  • the components 14 are in particular power control chips of an energy conversion system, for example a power supply of at least one electric machine of a motor vehicle (not shown) with propulsion electric.
  • the arrangement 10 comprises successively in a vertical direction embodied by the arrow "V", the element 12, a sole 16 for fixing the element 12, and a cooling means 18 supplying a means 20 for dissipation calories or which is preferably arranged in an air flow of the vehicle.
  • a thermally conductive substrate 22 is interposed between the components 14 and the sole 16, and the components 14 are also linked by heat bonds 24 to a housing 26 protecting the components 14.
  • the means for dissipating calories may comprise an external air / air exchanger or. "Heat pipe”.
  • the cooling means 18 may also comprise a single series of tubes which are traversed by a single cooling fluid. This design has the disadvantage of not covering the entire temperature range to which the components 14 may be subjected.
  • the invention proposes a means 18 for cooling of the "liquid" type which comprises at least a first 28 series of tubes 30 traversed by water and a second series 32 of tubes 34 traversed by a coolant non-aqueous, especially methanol.
  • a coolant non-aqueous, especially methanol especially methanol.
  • Other types of nonaqueous heat transfer fluid could be envisaged, depending on the temperature ranges to which the components 14 may be subjected, for example ethanol.
  • the tubes 30 are arranged longitudinally and parallel to each other, and the tubes 34 also, which has the advantage of optimizing their compactness.
  • a feature of the invention is that the tubes 30, 34 of each series 28, 32 are distributed preferably uniformly in the cooling means 28 opposite the entire surface of the sole 16.
  • the tubes 30 or 34 are metal tubes whose ends (not shown) are received in opposite walls of a housing forming the cooling means 28. These tubes 30 or 34 may be made of copper, or alternatively of an aluminum alloy. According to first and second embodiments which have been represented in FIGS. 2 and 3, the tubes 30 of the first series 28 are arranged in a first horizontal plane "P1" arranged in the immediate vicinity of the sole plate 16 and the tubes 34 of the second series 32 are arranged in a second plane "P2" distant horizontal offset vertically relative to the first plane "P1".
  • the tubes 30 could be superimposed on the tubes 34.
  • the tubes 30, 34 of each series 28, 32 are spaced apart in parallel at the same interval or not "p" and at least the tubes 34 of the second series 32 are wider than said interval "p", to ensure at least partial overlap of the intervals of the tubes 30 of the first series 28 by the tubes 34 of the second series 32.
  • each tube 32 of the second series 34 is centered on an interval separating two consecutive tubes 30 of the first series 28 to ensure complete overlap of the intervals of the tubes 30 of the first series 28 by the tubes 34 of the second series 32 .
  • FIG. 2 illustrates a first embodiment of the invention wherein the tubes 30, 34 are substantially oblong section, including rectangular.
  • the tubes could be of round section.
  • the tubes 34 of the second series 32 only partially cover the intervals of the tubes 30 of the first series 28 by the tubes 34 of the second series 32. It will be understood that it is sufficient to use tubes 34 of larger diameter (not shown) to achieve to a complete recovery of the tubes 30 of the first series 28 by the tubes 34 of the second series 32.
  • the tubes 34 of the second series 32 can be arranged in one and the same horizontal plane "P" as the tubes 30 of the first series 28, and of alternately preference. This configuration is more compact but less efficient in terms of calorie capture.
  • the water contained in the first series 28 of tubes 30 is frozen and only the second series 32 of tubes 34, containing for example methanol, is operational.
  • the supply of the components 14 causes a dissipation of energy that is extracted by the tubes 34 of the second series 32.
  • These tubes 34 allow to heat the cooler and especially the external sink. The heating continues, the first series 28 of tubes 30 becomes operational and is able to evacuate the calories it receives to the sink without risk of freezing, since the heatsink was previously thawed by the calories from the second series 32 of tubes 34.
  • the water contained in the first series 28 of tubes 30 evacuates the majority of the calories so that the risks of seeing the methanol contained in the second series 32 of tubes 34 to vaporize are minimized.
  • the invention therefore proposes an arrangement capable of efficiently cooling a power control module of the power supply of at least one electric machine of a motor vehicle in a wide range of temperatures.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention provides a device (18) for cooling at least one element (12) liable to produce heat, comprising at least one land (16) for attaching said element (12) and at least one series of tubes (30, 34) arranged under the land (16) and intended to receive at least some of the heat emitted by the element (12) so as to transfer it to an external heat-dissipation means (20), characterized in that said device (18) comprises at least a first series (28) of tubes (30) through which a first heat-transfer fluid flows and a second series (32) of tubes (34) through which a second heat-transfer fluid flows.

Description

"Dispositif pour le refroidissement d'au moins un élément comportant au moins un composant électronique"  "Device for cooling at least one element comprising at least one electronic component"
L'invention concerne un agencement pour le refroidissement d'au moins un élément comportant au moins un composant électronique.  The invention relates to an arrangement for cooling at least one element comprising at least one electronic component.
L'invention concerne plus particulièrement un agencement pour le refroidissement d'au moins un élément comportant au moins un composant électronique, notamment un module de contrôle de puissance d'un système de conversion d'énergie, par exemple une alimentation d'au moins une machine électrique, d'un véhicule automobile, qui comporte successivement suivant une direction verticale; l'élément, une semelle de fixation de l'élément, et un dispositif de refroidissement, ou refroidisseur, alimentant un moyen externe de dissipation des calories, ou dissipateur.  The invention relates more particularly to an arrangement for cooling at least one element comprising at least one electronic component, in particular a power control module of an energy conversion system, for example a supply of at least one electric machine, of a motor vehicle, which comprises successively in a vertical direction; the element, a soleplate for fixing the element, and a cooling device, or cooler, supplying an external means of dissipation of the calories, or dissipator.
On connaît de nombreux exemples d'agencements de ce type.  Many examples of arrangements of this type are known.
Il s'agit pour la plupart d'agencements dans lesquels le moyen de refroidissement comporte une unique série de tubes qui sont parcourus par un fluide de refroidissement.  These are mostly arrangements in which the cooling means comprises a single series of tubes which are traversed by a cooling fluid.
Cette conception pose de nombreux problèmes qui sont causés par le choix du fluide de refroidissement utilisé.  This design poses many problems that are caused by the choice of the cooling fluid used.
En effet, l'eau est le fluide présentant la capacité maximale d'extraction de calories. Toutefois, l'eau est limitée à une utilisation dans une plage de températures comprises entre 0°C et 200°C.  Indeed, water is the fluid with the maximum capacity for extracting calories. However, the water is limited to use in a temperature range of 0 ° C to 200 ° C.
En effet, dans des conditions de fonctionnement en dessous de 0°C, l'agencement court le risque de voir l'eau gelée être vaporisée quasi-instantanément puis être envoyée vers le moyen de dissipation ou dissipateur où elle se condense à nouveau en gelant, ce qui risque de priver le moyen de refroidissement de son alimentation, et peut donc causer la destruction des composants électroniques de l'élément. Pour remédier à cet inconvénient, on a proposé de remplacer l'eau par un fluide non aqueux, par exemple du méthanol. Indeed, under operating conditions below 0 ° C, the arrangement runs the risk of the frozen water being vaporized almost instantaneously and then sent to the dissipation means or dissipator where it condenses again by freezing , which may deprive the cooling means of its power supply, and may therefore destroy the electronic components of the element. To overcome this drawback, it has been proposed to replace the water with a non-aqueous fluid, for example methanol.
Cette conception présente aussi de nombreux problèmes car le méthanol n'est utilisable que dans la plage de températures allant de -120°C à +120°C.  This design also has many problems because the methanol is usable only in the temperature range of -120 ° C to + 120 ° C.
Si l'emploi de méthanol résout les problèmes de fonctionnement à froid, il n'en est pas de même à chaud où le méthanol a tendance à se vaporiser, rendant ainsi son pouvoir caloporteur inopérant.  If the use of methanol solves the problems of cold operation, it is not the same hot when the methanol has a tendency to vaporize, thus rendering its heat transfer power inoperative.
De plus, la capacité maximale d'extraction de calories du méthanol est sensiblement deux fois inférieure à celle de l'eau, ce qui nécessite un doublement de la surface d'échange des circuits.  In addition, the maximum heat extraction capacity of methanol is substantially two times lower than that of water, which requires a doubling of the exchange surface of the circuits.
Enfin, on a proposé de faire circuler dans le refroidisseur un mélange d'eau et de fluide caloporteur non aqueux. Ce mélange, qui présente une capacité maximale d'extraction de calories encore une fois inférieure à celle de l'eau, provoque de surcroît une corrosion des conduits internes du refroidisseur.  Finally, it has been proposed to circulate in the cooler a mixture of water and non-aqueous heat transfer fluid. This mixture, which has a maximum capacity for extracting calories again less than that of water, further causes corrosion of the internal ducts of the cooler.
L'invention remédie à cet inconvénient en proposant un dispositif de refroidissement ou refroidisseur muni de deux séries différentes de tubes, chaque série étant parcourue par un fluide différent susceptible de couvrir une partie de la plage de températures selon laquelle le dispositif de refroidissement est sensé être utilisé.  The invention overcomes this disadvantage by providing a cooling device or cooler provided with two different series of tubes, each series being traversed by a different fluid capable of covering part of the temperature range in which the cooling device is intended to be used.
Dans ce but, l'invention propose un agencement du type décrit précédemment, caractérisé en ce que le dispositif de refroidissement comporte au moins une première série de tubes longitudinaux parallèles parcourus par un premier fluide caloporteur et une seconde série de tubes longitudinaux parallèles parcourus par un second fluide caloporteur distinct du premier fluide caloporteur.  For this purpose, the invention proposes an arrangement of the type described above, characterized in that the cooling device comprises at least a first series of parallel longitudinal tubes traversed by a first heat transfer fluid and a second series of parallel longitudinal tubes traversed by a second heat transfer fluid distinct from the first heat transfer fluid.
Selon d'autres caractéristiques de l'invention : - les tubes de chaque série sont répartis uniformément en regard de la surface de la semelle, According to other features of the invention: the tubes of each series are uniformly distributed facing the surface of the sole,
- les tubes de la seconde série sont agencés dans un même plan horizontal que ceux de la première série,  the tubes of the second series are arranged in the same horizontal plane as those of the first series,
- les tubes de la première série sont agencés dans un premier plan horizontal agencé à proximité immédiate de la semelle et les tubes de la seconde série sont agencés dans un second plan horizontal distant décalé verticalement par rapport au premier plan,  - The tubes of the first series are arranged in a first horizontal plane arranged in the immediate vicinity of the sole and the tubes of the second series are arranged in a second horizontal plane remote vertically offset from the first plane,
- les tubes de chaque série sont espacés parallèlement selon un même intervalle et au moins les tubes de la seconde série sont plus larges que ledit intervalle, pour assurer le recouvrement au moins partiel des intervalles des tubes de la première série par les tubes de la seconde série,  the tubes of each series are spaced parallel in the same interval and at least the tubes of the second series are wider than said interval, to ensure the at least partial overlap of the intervals of the tubes of the first series by the tubes of the second; series,
- chaque tube de la seconde série est centré sur un intervalle séparant deux tubes consécutifs de la première série pour assurer le recouvrement complet des intervalles des tubes de la première série par les tubes de la seconde série,  each tube of the second series is centered on an interval separating two consecutive tubes of the first series to ensure the complete overlap of the intervals of the tubes of the first series by the tubes of the second series,
- les tubes sont de section sensiblement oblongue, notamment rectangulaire,  the tubes are of substantially oblong section, in particular rectangular,
- le premier fluide caloporteur est de l'eau et le deuxième fluide caloporteur est un fluide non aqueux, notamment du méthanol,  the first heat transfer fluid is water and the second heat transfer fluid is a non-aqueous fluid, in particular methanol,
- les tubes sont réalisés dans un matériau choisi par le cuivre ou l'aluminium,  the tubes are made of a material chosen from copper or aluminum,
L'invention concerne aussi un agencement comportant un dispositif de refroidissement du type décrit précédemment dont la semelle est reliée à au moins un élément comportant au moins un composant électronique, notamment un module de contrôle de puissance d'un système de conversion d'énergie d'un véhicule automobile, et dont les deux séries de tubes sont reliées à un moyen externe de dissipation de calories dit "caloduc" pour évacuer la chaleur produite par ledit élément. D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels : The invention also relates to an arrangement comprising a cooling device of the type described above, the soleplate of which is connected to at least one element comprising at least one electronic component, in particular a power control module of an energy conversion system. a motor vehicle, and the two sets of tubes are connected to an external means of heat dissipation called "heat pipe" for discharging the heat produced by said element. Other features and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:
- la figure 1 est une vue générale en coupe d'un agencement selon l'invention ;  - Figure 1 is a general sectional view of an arrangement according to the invention;
- la figure 2 est une vue de détail en coupe d'un dispositif de refroidissement pour l'agencement de la figure 1 selon un premier mode de réalisation de l'invention ;  FIG. 2 is a detail sectional view of a cooling device for the arrangement of FIG. 1 according to a first embodiment of the invention;
- la figure 3 est une vue de détail en coupe d'un dispositif de refroidissement selon un deuxième mode de réalisation de l'invention ;  - Figure 3 is a detail sectional view of a cooling device according to a second embodiment of the invention;
- la figure 4 est une vue de détail en coupe dispositif de refroidissement selon un troisième mode de réalisation de l'invention.  - Figure 4 is a detail sectional view cooling device according to a third embodiment of the invention.
Dans la description qui va suivre, des chiffres de référence identiques désignent des pièces identiques ou ayant des fonctions similaires.  In the following description, like reference numerals designate like parts or having similar functions.
On a représenté à la figure 1 un agencement 10 pour le refroidissement d'au moins d'un élément 12 comportant au moins un composant électronique 14.  FIG. 1 shows an arrangement 10 for cooling at least one element 12 comprising at least one electronic component 14.
Comme représenté à la figure 1, les composants 14 sont notamment des puces de contrôle de puissance d'un système de conversion d'énergie, par exemple une alimentation d'au moins une machine électrique d'un véhicule automobile (non représenté) à propulsion électrique.  As represented in FIG. 1, the components 14 are in particular power control chips of an energy conversion system, for example a power supply of at least one electric machine of a motor vehicle (not shown) with propulsion electric.
De manière connue, l'agencement 10 comporte successivement suivant une direction verticale matérialisée par la flèche "V", l'élément 12, une semelle 16 de fixation de l'élément 12, et un moyen 18 de refroidissement alimentant un moyen 20 de dissipation des calories ou qui est agencé de préférence dans un flux d'air du véhicule. Un substrat 22 thermiquement conducteur est interposé entre les composants 14 et la semelle 16, et les composants 14 sont par ailleurs liés par des liaisons thermiques 24 à un boîtier 26 protégeant les composants 14. In known manner, the arrangement 10 comprises successively in a vertical direction embodied by the arrow "V", the element 12, a sole 16 for fixing the element 12, and a cooling means 18 supplying a means 20 for dissipation calories or which is preferably arranged in an air flow of the vehicle. A thermally conductive substrate 22 is interposed between the components 14 and the sole 16, and the components 14 are also linked by heat bonds 24 to a housing 26 protecting the components 14.
Conventionnellement, le moyen 20 de dissipation des calories peut comporter un échangeur externe air/air ou. "caloduc".  Conventionally, the means for dissipating calories may comprise an external air / air exchanger or. "Heat pipe".
Le moyen 18 de refroidissement peut aussi comporter une unique série de tubes qui sont parcourus par un unique fluide de refroidissement. Cette conception présente l'inconvénient de ne pas couvrir la totalité de la gamme de températures à laquelle les composants 14 risquent d'être soumis.  The cooling means 18 may also comprise a single series of tubes which are traversed by a single cooling fluid. This design has the disadvantage of not covering the entire temperature range to which the components 14 may be subjected.
Pour remédier à cet inconvénient, l'invention propose un moyen 18 de refroidissement de type "liquide" qui comporte au moins une première 28 série de tubes 30 parcourus par de l'eau et une seconde série 32 de tubes 34 parcourus par un fluide caloporteur non aqueux, notamment du méthanol. On pourrait envisager d'autres types de fluide caloporteur non aqueux, en fonction des gammes de température à laquelle les composants 14 risquent d'être soumis, par exemple de l'éthanol. Dans les modes de réalisation de l'invention décrits ci-après, les tubes 30 sont disposés longitudinalement et parallèlement entre eux, et les tubes 34 également, ce qui a pour avantage d'optimiser leur compacité.  To overcome this drawback, the invention proposes a means 18 for cooling of the "liquid" type which comprises at least a first 28 series of tubes 30 traversed by water and a second series 32 of tubes 34 traversed by a coolant non-aqueous, especially methanol. Other types of nonaqueous heat transfer fluid could be envisaged, depending on the temperature ranges to which the components 14 may be subjected, for example ethanol. In the embodiments of the invention described below, the tubes 30 are arranged longitudinally and parallel to each other, and the tubes 34 also, which has the advantage of optimizing their compactness.
Dans cette configuration, une caractéristique de l'invention est que les tubes 30, 34 de chaque série 28, 32 soient répartis de préférence uniformément dans le moyen 28 de refroidissement en regard de toute la surface de la semelle 16.  In this configuration, a feature of the invention is that the tubes 30, 34 of each series 28, 32 are distributed preferably uniformly in the cooling means 28 opposite the entire surface of the sole 16.
Dans le mode de réalisation préféré de l'invention, les tubes 30 ou 34 sont des tubes métalliques dont les extrémités (non représentées) sont reçues dans des parois opposées d'un boîtier formant le moyen 28 de refroidissement. Ces tubes 30 ou 34 peuvent être réalisés en cuivre, ou en variante en un alliage d'aluminium. Selon des premier et deuxième modes de réalisation qui ont été représentés aux figures 2 et 3, les tubes 30 de la première série 28 sont agencés dans un premier plan "P1" horizontal agencé à proximité immédiate de la semelle 16 et les tubes 34 de la seconde série 32 sont agencés dans un second plan "P2" horizontal distant décalé verticalement par rapport au premier plan "P1". In the preferred embodiment of the invention, the tubes 30 or 34 are metal tubes whose ends (not shown) are received in opposite walls of a housing forming the cooling means 28. These tubes 30 or 34 may be made of copper, or alternatively of an aluminum alloy. According to first and second embodiments which have been represented in FIGS. 2 and 3, the tubes 30 of the first series 28 are arranged in a first horizontal plane "P1" arranged in the immediate vicinity of the sole plate 16 and the tubes 34 of the second series 32 are arranged in a second plane "P2" distant horizontal offset vertically relative to the first plane "P1".
Selon une première variante (non représentée) les tubes 30 pourraient être superposés aux tubes 34.  According to a first variant (not shown) the tubes 30 could be superimposed on the tubes 34.
Toutefois, afin de garantir une captation optimale de la chaleur émise par les composants 14, les tubes 30, 34 de chaque série 28, 32 sont espacés parallèlement selon un même intervalle ou pas "p" et au moins les tubes 34 de la seconde série 32 sont plus larges que ledit intervalle "p", pour assurer le recouvrement au moins partiel des intervalles des tubes 30 de la première série 28 par les tubes 34 de la seconde série 32.  However, in order to guarantee optimum capture of the heat emitted by the components 14, the tubes 30, 34 of each series 28, 32 are spaced apart in parallel at the same interval or not "p" and at least the tubes 34 of the second series 32 are wider than said interval "p", to ensure at least partial overlap of the intervals of the tubes 30 of the first series 28 by the tubes 34 of the second series 32.
De préférence, chaque tube 32 de la seconde série 34 est centré sur un intervalle séparant deux tubes 30 consécutifs de la première série 28 pour assurer le recouvrement complet des intervalles des tubes 30 de la première série 28 par les tubes 34 de la seconde série 32.  Preferably, each tube 32 of the second series 34 is centered on an interval separating two consecutive tubes 30 of the first series 28 to ensure complete overlap of the intervals of the tubes 30 of the first series 28 by the tubes 34 of the second series 32 .
Cette conception peut être aisément réalisée de la manière qui a été représentée à la figure 2, qui illustre un premier mode de réalisation de l'invention dans lequel les tubes 30, 34 sont de section sensiblement oblongue, notamment rectangulaire.  This design can be easily performed in the manner that has been shown in Figure 2, which illustrates a first embodiment of the invention wherein the tubes 30, 34 are substantially oblong section, including rectangular.
En variante, comme représenté sur la figure 3 qui illustre un deuxième mode de réalisation de l'invention, les tubes pourraient être de section ronde.  Alternatively, as shown in Figure 3 which illustrates a second embodiment of the invention, the tubes could be of round section.
Dans la configuration qui a été représentée ici, les tubes 34 de la seconde série 32 n'assurent qu'un recouvrement partiel des intervalles des tubes 30 de la première série 28 par les tubes 34 de la seconde série 32. Il sera compris qu'il suffit d'utiliser des tubes 34 d'un diamètre supérieur (non représentés) pour parvenir à un recouvrement complet des tubes 30 de la première série 28 par les tubes 34 de la seconde série 32. In the configuration which has been shown here, the tubes 34 of the second series 32 only partially cover the intervals of the tubes 30 of the first series 28 by the tubes 34 of the second series 32. It will be understood that it is sufficient to use tubes 34 of larger diameter (not shown) to achieve to a complete recovery of the tubes 30 of the first series 28 by the tubes 34 of the second series 32.
Enfin, selon un troisième mode de réalisation qui a été représenté à la figure 4, les tubes 34 de la seconde série 32 peuvent être agencés dans un même un même plan horizontal "P" que les tubes 30 de la première série 28, et de préférence en alternance. Cette configuration est plus compacte mais moins efficace en termes de captation de calories.  Finally, according to a third embodiment which has been shown in FIG. 4, the tubes 34 of the second series 32 can be arranged in one and the same horizontal plane "P" as the tubes 30 of the first series 28, and of alternately preference. This configuration is more compact but less efficient in terms of calorie capture.
Quel que soit le mode de réalisation envisagé, le fontionnement de l'agencement est le suivant :  Whatever the embodiment envisaged, the operation of the arrangement is as follows:
En cas de température négative, l'eau contenue dans la première série 28 de tubes 30 est gelée et seule la seconde série 32 de tubes 34, contenant par exemple du méthanol, est opérationnelle. L'alimentation des composants 14 provoque une dissipation d'énergie qui est extraite par les tubes 34 de la deuxième série 32. Ces tubes 34 permettent de réchauffer le refroidisseur et surtout le dissipateur externe. L'échauffement se poursuivant, la première série 28 de tubes 30 redevient opérationnelle et est à même d'évacuer les calories qu'elle reçoit vers le dissipateur sans risque de gel, puisque le dissipateur a été préalablement dégelé par les calories en provenance de la seconde série 32 de tubes 34.  In the case of a negative temperature, the water contained in the first series 28 of tubes 30 is frozen and only the second series 32 of tubes 34, containing for example methanol, is operational. The supply of the components 14 causes a dissipation of energy that is extracted by the tubes 34 of the second series 32. These tubes 34 allow to heat the cooler and especially the external sink. The heating continues, the first series 28 of tubes 30 becomes operational and is able to evacuate the calories it receives to the sink without risk of freezing, since the heatsink was previously thawed by the calories from the second series 32 of tubes 34.
En cas de température élevée, l'eau contenue dans la première série 28 de tubes 30 évacue la majorité des calories de sorte que les risques de voir le méthanol contenu dans la seconde série 32 de tubes 34 se vaporiser sont minimisés.  In case of high temperature, the water contained in the first series 28 of tubes 30 evacuates the majority of the calories so that the risks of seeing the methanol contained in the second series 32 of tubes 34 to vaporize are minimized.
L'invention propose donc un agencement à même d'assurer le refroidissement efficace d'un module de contrôle de puissance de l'alimentation d'au moins une machine électrique d'un véhicule automobile selon une large gamme de températures.  The invention therefore proposes an arrangement capable of efficiently cooling a power control module of the power supply of at least one electric machine of a motor vehicle in a wide range of temperatures.

Claims

REVENDICATIONS
1. Dispositif de refroidissement (18) d'au moins un élément (12) susceptible de produire de la chaleur, comportant au moins une semelle de fixation (16) dudit élément (12) et au moins une série de tubes (30, 34) agencée sous la semelle (16) et destinée à recevoir au moins une partie de la chaleur émise par l'élément (12) pour l'acheminer vers un moyen externe de dissipation de calories (20), ledit dispositif (18) comportant au moins une première série (28) de tubes (30) parcourus par un premier fluide caloporteur et une seconde série (32) de tubes (34) parcourus par un deuxième fluide caloporteur distinct dudit premier fluide caloporteur,  Cooling device (18) for at least one element (12) capable of producing heat, comprising at least one attachment plate (16) of said element (12) and at least one series of tubes (30, 34). ) arranged under the sole (16) and intended to receive at least a portion of the heat emitted by the element (12) to convey it to an external means of heat dissipation (20), said device (18) comprising at least at least one first series (28) of tubes (30) traversed by a first heat transfer fluid and a second series (32) of tubes (34) traversed by a second coolant separate from said first heat transfer fluid,
caractérisé en ce que les tubes (30, 34) de chaque série (28, 32) sont répartis uniformément en regard de la surface de la semelle (16).  characterized in that the tubes (30, 34) of each series (28, 32) are evenly distributed facing the surface of the sole (16).
2. Dispositif de refroidissement (18) selon la revendication précédente, caractérisé en ce que les tubes (34) de la seconde série (32) sont agencés dans un même plan horizontal (P) que ceux de la première série (28).  2. Cooling device (18) according to the preceding claim, characterized in that the tubes (34) of the second series (32) are arranged in the same horizontal plane (P) as those of the first series (28).
3. Dispositif de refroidissement (18) selon la revendication Cooling device (18) according to the claim
1, caractérisé en ce que les tubes (30) de la première série (28) sont agencés dans un premier plan horizontal (P1) agencé à proximité immédiate de la semelle (16) et en ce que les tubes (34) de la seconde série (32) sont agencés dans un second plan horizontal (P2) distant décalé verticalement par rapport au premier plan (P1 ). 1, characterized in that the tubes (30) of the first series (28) are arranged in a first horizontal plane (P1) arranged in the immediate vicinity of the sole (16) and in that the tubes (34) of the second series (32) are arranged in a second horizontal plane (P2) distant offset vertically relative to the first plane (P1).
4. Dispositif de refroidissement (18) selon la revendication 3, caractérisé en ce que les tubes (30, 34) de chaque série (28, 32) sont espacés parallèlement selon un même intervalle (p) et en ce que au moins les tubes (34) de la seconde série (32) sont plus larges que ledit intervalle (p), pour assurer le recouvrement au moins partiel des intervalles (p) des tubes (30) de la première série (28) par les tubes (34) de la seconde série (32). 4. Cooling device (18) according to claim 3, characterized in that the tubes (30, 34) of each series (28, 32) are spaced parallel in the same interval (p) and in that at least the tubes (34) of the second series (32) are wider than said gap (p), to ensure at least partial overlap of the intervals (p) of the tubes (30) of the first series (28) by the tubes (34) of the second series (32).
5. Dispositif de refroidissement (18) selon la revendication précédente, caractérisé en ce que chaque tube (34) de la seconde série (32) est centré sur un intervalle (p) séparant deux tubes (30) consécutifs de la première série (28) pour assurer le recouvrement complet des intervalles des tubes 30 de la première série 28 par les tubes 34 de la seconde série 32. 5. Cooling device (18) according to the preceding claim, characterized in that each tube (34) of the second series (32) is centered on an interval (p) separating two consecutive tubes (30) of the first series (28). ) to ensure the complete recovery of the intervals of the tubes 30 of the first series 28 by the tubes 34 of the second series 32.
6. Dispositif de refroidissement (18) selon l'une des revendications précédentes, caractérisé en ce que les tubes (30, 34) sont de section sensiblement oblongue.  6. Cooling device (18) according to one of the preceding claims, characterized in that the tubes (30, 34) are substantially oblong section.
7. Dispositif de refroidissement (18) selon l'une des revendications précédentes, caractérisé en ce que le premier fluide caloporteur est de l'eau et le deuxième fluide caloporteur est un fluide non aqueux, notamment du méthanol.  7. Cooling device (18) according to one of the preceding claims, characterized in that the first coolant is water and the second heat transfer fluid is a non-aqueous fluid, including methanol.
8. Dispositif de refroidissement (18) selon l'une des revendications précédentes, caractérisé en ce que les tubes (30, Cooling device (18) according to one of the preceding claims, characterized in that the tubes (30,
34) sont réalisés dans un matériau choisi parmi le cuivre ou l'aluminium. 34) are made of a material selected from copper or aluminum.
9. Utilisation d'un dispositif de refroidissement (18) selon l'une quelconque des revendications précédentes, dont la semelle (16) est reliée à au moins d'un élément (12) comportant au moins un composant (14) électronique, et dont les deux séries de tubes sont reliées à un moyen externe de dissipation de calories (20) dit "caloduc" pour évacuer la chaleur produite par ledit élément (12).  9. Use of a cooling device (18) according to any one of the preceding claims, the sole (16) of which is connected to at least one element (12) comprising at least one electronic component (14), and whose two series of tubes are connected to an external means of heat dissipation (20) said "heat pipe" for discharging the heat produced by said element (12).
PCT/FR2011/051502 2010-07-07 2011-06-28 Device for cooling at least one element comprising at least one electronic component WO2012004493A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1055516 2010-07-07
FR1055516A FR2962625B1 (en) 2010-07-07 2010-07-07 DEVICE FOR COOLING AT LEAST ONE ELEMENT COMPRISING AT LEAST ONE ELECTRONIC COMPONENT

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WO2012004493A1 true WO2012004493A1 (en) 2012-01-12

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02229455A (en) * 1989-03-02 1990-09-12 Furukawa Electric Co Ltd:The Apparatus of heat pipe system
EP0821468A2 (en) * 1996-07-26 1998-01-28 General Electric Company Temperature control of electronic components
WO2004070303A1 (en) * 2003-01-31 2004-08-19 Cooligy, Inc. Optimized multiple heat pipe blocks for electronics cooling
WO2009121737A1 (en) * 2008-04-03 2009-10-08 Siemens Aktiengesellschaft Substrate with flat heat pipe
GB2462098A (en) * 2008-07-23 2010-01-27 Ryan James Mcglen Thermal management device comprising heat pipes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02229455A (en) * 1989-03-02 1990-09-12 Furukawa Electric Co Ltd:The Apparatus of heat pipe system
EP0821468A2 (en) * 1996-07-26 1998-01-28 General Electric Company Temperature control of electronic components
WO2004070303A1 (en) * 2003-01-31 2004-08-19 Cooligy, Inc. Optimized multiple heat pipe blocks for electronics cooling
WO2009121737A1 (en) * 2008-04-03 2009-10-08 Siemens Aktiengesellschaft Substrate with flat heat pipe
GB2462098A (en) * 2008-07-23 2010-01-27 Ryan James Mcglen Thermal management device comprising heat pipes

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FR2962625B1 (en) 2018-03-16
FR2962625A1 (en) 2012-01-13

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