WO2017042236A1 - Electric supercharging compressor - Google Patents

Electric supercharging compressor Download PDF

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Publication number
WO2017042236A1
WO2017042236A1 PCT/EP2016/071119 EP2016071119W WO2017042236A1 WO 2017042236 A1 WO2017042236 A1 WO 2017042236A1 EP 2016071119 W EP2016071119 W EP 2016071119W WO 2017042236 A1 WO2017042236 A1 WO 2017042236A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric machine
compressor
electronic assembly
compressor according
cooling path
Prior art date
Application number
PCT/EP2016/071119
Other languages
French (fr)
Inventor
Amrid MAMMERI
Kamel Azzouz
Original Assignee
Valeo Systemes De Controle Moteur
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 Valeo Systemes De Controle Moteur filed Critical Valeo Systemes De Controle Moteur
Publication of WO2017042236A1 publication Critical patent/WO2017042236A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0693—Details or arrangements of the wiring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5813—Cooling the control unit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • 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
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/467—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
    • 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
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids

Definitions

  • the present invention relates in particular to an over-power compressor of a motor vehicle.
  • the present invention aims in particular to achieve this goal.
  • the invention thus relates to an electric supercharger of a motor vehicle, this compressor comprising:
  • a cooling channel arranged to cool at least the electronic assembly, this channel receiving a coolant
  • a cooling path for a flow of air arranged to cool the electric machine and / or the electronic assembly in addition to the liquid cooling channel.
  • the two types of cooling by liquid and by air added to one another, allow efficient cooling of the compressor.
  • the air circulation allows the evacuation of calories outside the compressor.
  • the motor comprises a housing and the cooling path comprises at least one orifice formed by the casing for air circulation, in particular a plurality of orifices, in particular at least one inlet orifice and an air outlet orifice.
  • the air cooling path is at least partially between the compressor wheel and the electric machine.
  • the electric machine comprises in particular a lid provided with orifices and the air cooling path passes through these orifices.
  • the cooling path comes into direct contact with at least some components of the electronic assembly.
  • the air cooling path is arranged to cool the stator of the machine.
  • the compressor if any, comprises a transverse wall separating the wheel from the electric machine, this wall comprising the cooling channel.
  • this transverse wall is between the wheel and the electric machine.
  • This transverse wall cooperates in particular with a bearing, in particular a ball bearing, of the shaft of the electric machine.
  • the electronic assembly is placed on the transverse wall.
  • the electronic assembly is placed between the stator of the machine and the transverse wall.
  • the electronic assembly comprises at least one electronic power component, including a capacitance.
  • the electronic assembly comprises at least one electronic control component, in particular a transistor.
  • the electronic assembly may comprise at least one measurement probe.
  • the electric machine is a motor whose rotor comprises at least one permanent magnet.
  • the stator comprises for example an electric winding
  • the compressor (“electric supercharger" in English) is in addition to a turbocharger to compensate for its response time (due to its inertia and the time required for the gases to exhaust has sufficient energy to drive it).
  • the compressor provides supercharging in a few hundred milliseconds until the turbocharger has sufficient speed to take over.
  • the compressor is disposed on the intake duct upstream or downstream, preferably upstream, of the engine to allow compression of the intake air to optimize the filling of the cylinders of the engine.
  • the electric machine acting as a motor, is activated to drive the compressor wheel in order to minimize the torque response time, in particular during the transient phases during acceleration, or in the automatic restart phase of the engine after a standby ("stop and start" operation).
  • the speed of rotation of this type of electric machine can reach 70000 revolutions / min.
  • said rotating electrical machine has a response time of the order of 250 ms to go from 5000 to 70,000 revolutions / min.
  • FIG. 1 is a sectional view, schematic and partial, of an electric compressor according to an embodiment of the invention.
  • FIG. 1 shows an over-power compressor 1 comprising a wheel 2 fitted with fins 3 able to suck, via an inlet 4, uncompressed air from an air source (not shown) and to repress compressed air via the outlet 5 after passing through a volute 6.
  • the outlet 5 can be connected to a intake manifold (not shown) located upstream of the blast motor of the vehicle to optimize the filling of the cylinders of the combustion engine.
  • the suction of the air is performed in an axial direction, that is to say along the X axis of the wheel 2, and the discharge is made in a radial direction substantially perpendicular to the X axis of the wheel 2.
  • the wheel 2 is driven by an electric machine 7 mounted inside the housing or casing 8.
  • This electric machine 7 comprises a stator 9, which may be polyphase, surrounding a rotor 10 with the presence of an air gap.
  • This stator 9 is mounted in the housing 8.
  • the rotor 10 is integral with a shaft 19 cooperating with bearings 20a and 20b.
  • the shaft 19 is connected in rotation with the wheel 2 as well as with the rotor 10.
  • the stator 9 comprises a body 25 consisting of a stack of thin sheets forming a ring, also called a bundle of sheets 25, the inner face of which is provided with notches open towards the inside to receive phase windings which form a winding. .
  • the rotation axis rotor X is for example permanent magnets.
  • the rotor 10 comprises a body formed here by a stack of sheets. Alternatively, the rotor 10 may be devoid of permanent magnets.
  • the housing or housing 8 is made by molding, in particular aluminum.
  • the housing 8 comprises a cooling channel 50 for the passage of a cooling fluid, in particular water.
  • This cooling channel 50 extends at least partially around the shaft 19.
  • the compressor 1 comprises:
  • the cooling path 31 comprises inlet orifices 32 and air outlet orifices 33.
  • the air cooling path 31 passes between the compressor wheel 2 and the electric machine 7.
  • the electric machine may comprise a lid, not shown, provided with orifices and the air cooling path passes through these orifices.
  • the cooling path 31 comes into direct contact with at least some components of the electronic assembly 30.
  • the air cooling path 31 is arranged to cool the stator of the machine.
  • the compressor 1 comprises a transverse wall 35 separating the wheel 2 from the electric machine 7, this wall 35 comprising the cooling channel 50.
  • this transverse wall is between the wheel and the electric machine.
  • This transverse wall 35 cooperates with the bearing 20a, in particular a ball bearing, of the shaft of the electric machine.
  • the electronic assembly 30 is placed on the transverse wall 35.
  • the cooling path 31 thus passes between the wall 35 and the stator 9.
  • the electronic assembly 30 is placed between the stator 9 of the machine and the transverse wall 35.
  • the electronic assembly 30 comprises one or more capacitors 57, at least one transistor and optionally a measurement probe, for example temperature.

Abstract

The invention relates to an electric supercharging compressor of a motor vehicle, this compressor comprising: - a rotary electric machine (7), - a compressor impeller (2), - an electronic assembly (30) electrically connected to the electric machine, - a cooling duct (50) arranged to cool at least the electronic assembly, - a cooling path (31) for a circulation of air designed to cool the electric machine and/or the electronic assembly.

Description

Compresseur de sur-alimentation électrique  Over-power compressor
La présente invention concerne notamment un compresseur de sur-alimentation électrique de véhicule automobile. The present invention relates in particular to an over-power compressor of a motor vehicle.
Il existe un besoin de refroidir de manière efficace ce type de compresseur.  There is a need to effectively cool this type of compressor.
La présente invention vise notamment à atteindre ce but.  The present invention aims in particular to achieve this goal.
L'invention a ainsi pour objet un compresseur de suralimentation électrique de véhicule automobile, ce compresseur comportant : The invention thus relates to an electric supercharger of a motor vehicle, this compressor comprising:
- une machine électrique tournante,  - a rotating electric machine,
- une roue de compresseur agencée pour être entraînée en rotation par la machine électrique,  a compressor wheel arranged to be rotated by the electric machine,
- un ensemble électronique relié électriquement à la machine électrique,  an electronic assembly electrically connected to the electric machine,
- un canal de refroidissement agencé pour refroidir au moins l'ensemble électronique, ce canal recevant un liquide de refroidissement,  a cooling channel arranged to cool at least the electronic assembly, this channel receiving a coolant,
- un chemin de refroidissement pour une circulation d'air agencée pour refroidir la machine électrique et/ou l'ensemble électronique en plus du canal de refroidissement à liquide.  - A cooling path for a flow of air arranged to cool the electric machine and / or the electronic assembly in addition to the liquid cooling channel.
Grâce à l'invention, les deux types de refroidissement par liquide et par air, additionnés l'un à l'autre, permettent un refroidissement efficace du compresseur. La circulation d'air permet l'évacuation de calories en dehors du compresseur. Thanks to the invention, the two types of cooling by liquid and by air, added to one another, allow efficient cooling of the compressor. The air circulation allows the evacuation of calories outside the compressor.
Dans un exemple de mise en œuvre de l'invention, le moteur comprend un boîtier et le chemin de refroidissement comprend au moins un orifice formé par le boîtier pour la circulation d'air, notamment une pluralité d'orifices, notamment au moins un orifice d'entrée et un orifice de sortie d'air. In an exemplary implementation of the invention, the motor comprises a housing and the cooling path comprises at least one orifice formed by the casing for air circulation, in particular a plurality of orifices, in particular at least one inlet orifice and an air outlet orifice.
Avantageusement le chemin de refroidissement d'air est au moins partiellement entre la roue de compresseur et la machine électrique.  Advantageously, the air cooling path is at least partially between the compressor wheel and the electric machine.
La machine électrique comporte notamment un couvercle pourvu d'orifices et le chemin de refroidissement par air passe par ces orifices.  The electric machine comprises in particular a lid provided with orifices and the air cooling path passes through these orifices.
De préférence le chemin de refroidissement vient en contact direct avec au moins certains composants de l'ensemble électronique.  Preferably the cooling path comes into direct contact with at least some components of the electronic assembly.
Avantageusement le chemin de refroidissement par air est agencé pour refroidir le stator de la machine.  Advantageously, the air cooling path is arranged to cool the stator of the machine.
Le compresseur, le cas échéant, comprend une paroi transversale séparant la roue de la machine électrique, cette paroi comprenant le canal de refroidissement. Autrement dit cette paroi transversale est entre la roue et la machine électrique.  The compressor, if any, comprises a transverse wall separating the wheel from the electric machine, this wall comprising the cooling channel. In other words, this transverse wall is between the wheel and the electric machine.
Cette paroi transversale coopère notamment avec un roulement, notamment un roulement à billes, de l'arbre de la machine électrique.  This transverse wall cooperates in particular with a bearing, in particular a ball bearing, of the shaft of the electric machine.
Avantageusement l'ensemble électronique est placé sur la paroi transversale.  Advantageously, the electronic assembly is placed on the transverse wall.
De préférence l'ensemble électronique est placé entre le stator de la machine et la paroi transversale.  Preferably the electronic assembly is placed between the stator of the machine and the transverse wall.
Dans un exemple de mise en œuvre de l'invention, l'ensemble électronique comporte au moins un composant électronique de puissance, notamment une capacité.  In an exemplary implementation of the invention, the electronic assembly comprises at least one electronic power component, including a capacitance.
Le cas échéant, l'ensemble électronique comporte au moins un composant électronique de commande, notamment un transistor.  Where appropriate, the electronic assembly comprises at least one electronic control component, in particular a transistor.
L'ensemble électronique peut comporter au moins une sonde de mesure.  The electronic assembly may comprise at least one measurement probe.
Dans un exemple de mise en œuvre de l'invention, la machine électrique est un moteur dont le rotor comporte au moins un aimant permanent. Le stator comprend par exemple un bobinage électrique In an exemplary implementation of the invention, the electric machine is a motor whose rotor comprises at least one permanent magnet. The stator comprises for example an electric winding
Dans un exemple de mise en œuvre de l'invention, le compresseur (« electric supercharger » en anglais) vient en complément d'un turbocompresseur pour palier son temps de réponse (dû à son inertie et au temps nécessaire pour que les gaz d'échappement ait une énergie suffisante pour l'entraîner). Le compresseur fournit une suralimentation en quelques centaines de millisecondes jusqu'à ce que le turbocompresseur ait une vitesse suffisante pour prendre le relais.  In an exemplary implementation of the invention, the compressor ("electric supercharger" in English) is in addition to a turbocharger to compensate for its response time (due to its inertia and the time required for the gases to exhaust has sufficient energy to drive it). The compressor provides supercharging in a few hundred milliseconds until the turbocharger has sufficient speed to take over.
Le compresseur est disposé sur le conduit d'admission en amont ou en aval , de préférence en amont, du moteur thermique pour permettre de comprimer l'air d'admission afin d'optimiser le remplissage des cylindres du moteur thermique.  The compressor is disposed on the intake duct upstream or downstream, preferably upstream, of the engine to allow compression of the intake air to optimize the filling of the cylinders of the engine.
La machine électrique, agissant en moteur, est activée pour entraîner la roue du compresseur afin de minimiser le temps de réponse en couple, notamment lors des phases transitoires à l'accélération, ou en phase de redémarrage automatique du moteur thermique après une mise en veille (fonctionnement « stop and start » en anglais).  The electric machine, acting as a motor, is activated to drive the compressor wheel in order to minimize the torque response time, in particular during the transient phases during acceleration, or in the automatic restart phase of the engine after a standby ("stop and start" operation).
La vitesse de rotation de ce type de machine électrique peut atteindre 70000 tours/min.  The speed of rotation of this type of electric machine can reach 70000 revolutions / min.
Selon une réalisation, ladite machine électrique tournante présente un temps de réponse de l'ordre de 250ms pour passer de 5000 à 70000 tours/min.  According to one embodiment, said rotating electrical machine has a response time of the order of 250 ms to go from 5000 to 70,000 revolutions / min.
L'invention sera mieux comprise et d'autres détails, caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante faite à titre d'exemple non limitatif en référence au dessin annexé dans lequel :  The invention will be better understood and other details, characteristics and advantages of the invention will become apparent on reading the following description given by way of non-limiting example with reference to the accompanying drawings in which:
- la figure 1 est une vue en coupe, schématique et partielle, d'un compresseur électrique selon un exemple de réalisation de l'invention. La figure 1 montre un compresseur de sur-alimentation électrique 1 comportant une roue 2 munie d'ailettes 3 apte à aspirer, via une entrée 4, de l'air non-comprimé issu d'une source d'air (non représentée) et à refouler de l'air comprimé via la sortie 5 après passage dans une volute 6. La sortie 5 peut être reliée à un répartiteur d'admission (non représenté) situé en amont du moteur à explosions du véhicule afin d'optimiser le remplissage des cylindres du moteur à combustion. En l'occurrence, l'aspiration de l'air est réalisée suivant une direction axiale, c'est-à-dire suivant l'axe X de la roue 2, et le refoulement est réalisé suivant une direction radiale sensiblement perpendiculaire à l'axe X de la roue 2. - Figure 1 is a sectional view, schematic and partial, of an electric compressor according to an embodiment of the invention. FIG. 1 shows an over-power compressor 1 comprising a wheel 2 fitted with fins 3 able to suck, via an inlet 4, uncompressed air from an air source (not shown) and to repress compressed air via the outlet 5 after passing through a volute 6. The outlet 5 can be connected to a intake manifold (not shown) located upstream of the blast motor of the vehicle to optimize the filling of the cylinders of the combustion engine. In this case, the suction of the air is performed in an axial direction, that is to say along the X axis of the wheel 2, and the discharge is made in a radial direction substantially perpendicular to the X axis of the wheel 2.
La roue 2 est entraînée par une machine électrique 7 montée à l'intérieur du boîtier ou carter 8. Cette machine électrique 7 comporte un stator 9, qui peut être polyphasé, entourant un rotor 10 avec présence d'un entrefer. Ce stator 9 est monté dans le carter 8. Le rotor 10 est solidaire d'un arbre 19 coopérant avec des roulements 20a et 20b. L'arbre 19 est lié en rotation avec la roue 2 ainsi qu'avec le rotor 10.  The wheel 2 is driven by an electric machine 7 mounted inside the housing or casing 8. This electric machine 7 comprises a stator 9, which may be polyphase, surrounding a rotor 10 with the presence of an air gap. This stator 9 is mounted in the housing 8. The rotor 10 is integral with a shaft 19 cooperating with bearings 20a and 20b. The shaft 19 is connected in rotation with the wheel 2 as well as with the rotor 10.
Le stator 9 comporte un corps 25 constitué par un empilage de tôles minces formant une couronne, encore appelé paquet de tôles 25, dont la face intérieure est pourvue d'encoches ouvertes vers l'intérieur pour recevoir des enroulements de phase qui froment un bobinage 48.  The stator 9 comprises a body 25 consisting of a stack of thin sheets forming a ring, also called a bundle of sheets 25, the inner face of which is provided with notches open towards the inside to receive phase windings which form a winding. .
Le rotor 10 d'axe de rotation X est par exemple à aimants permanents. Le rotor 10 comporte un corps formé ici par un empilement de tôles. En variante, le rotor 10 peut être dépourvu d'aimants permanents.  The rotation axis rotor X is for example permanent magnets. The rotor 10 comprises a body formed here by a stack of sheets. Alternatively, the rotor 10 may be devoid of permanent magnets.
Le boîtier ou carter 8 est réalisé par moulage, notamment d'aluminium.  The housing or housing 8 is made by molding, in particular aluminum.
Le boîtier 8 comporte un canal de refroidissement 50 pour le passage d'un fluide de refroidissement, notamment de l'eau.  The housing 8 comprises a cooling channel 50 for the passage of a cooling fluid, in particular water.
Ce canal de refroidissement 50 s'étend au moins partiellement autour de l'arbre 19.  This cooling channel 50 extends at least partially around the shaft 19.
Le compresseur 1 comporte :  The compressor 1 comprises:
- un ensemble électronique 30 relié électriquement à la machine électrique 7, - le canal de refroidissement 50 agencé pour refroidir l'ensemble électronique 30, an electronic assembly 30 electrically connected to the electric machine 7, the cooling channel 50 arranged to cool the electronic assembly 30,
- un chemin de refroidissement 31 pour une circulation d'air agencée pour refroidir la machine électrique et l'ensemble électronique en plus du canal de refroidissement à eau 50.  - A cooling path 31 for an air flow arranged to cool the electric machine and the electronic assembly in addition to the water cooling channel 50.
Le chemin de refroidissement 31 comprend des orifices d'entrée 32 et des orifices de sortie d'air 33. The cooling path 31 comprises inlet orifices 32 and air outlet orifices 33.
Le chemin de refroidissement d'air 31 passe entre la roue 2 de compresseur et la machine électrique 7.  The air cooling path 31 passes between the compressor wheel 2 and the electric machine 7.
La machine électrique peut comporter un couvercle, non représenté, pourvu d'orifices et le chemin de refroidissement par air passe par ces orifices.  The electric machine may comprise a lid, not shown, provided with orifices and the air cooling path passes through these orifices.
Le chemin de refroidissement 31 vient en contact direct avec au moins certains composants de l'ensemble électronique 30.  The cooling path 31 comes into direct contact with at least some components of the electronic assembly 30.
Avantageusement le chemin de refroidissement par air 31 est agencé pour refroidir le stator de la machine.  Advantageously, the air cooling path 31 is arranged to cool the stator of the machine.
Le compresseur 1 comprend une paroi transversale 35 séparant la roue 2 de la machine électrique 7, cette paroi 35 comprenant le canal de refroidissement 50. Autrement dit cette paroi transversale est entre la roue et la machine électrique.  The compressor 1 comprises a transverse wall 35 separating the wheel 2 from the electric machine 7, this wall 35 comprising the cooling channel 50. In other words, this transverse wall is between the wheel and the electric machine.
Cette paroi transversale 35 coopère avec le roulement 20a, notamment un roulement à billes, de l'arbre de la machine électrique.  This transverse wall 35 cooperates with the bearing 20a, in particular a ball bearing, of the shaft of the electric machine.
L'ensemble électronique 30 est placé sur la paroi transversale 35.  The electronic assembly 30 is placed on the transverse wall 35.
Le chemin de refroidissement 31 passe ainsi entre la paroi 35 et le stator 9.  The cooling path 31 thus passes between the wall 35 and the stator 9.
L'ensemble électronique 30 est placé entre le stator 9 de la machine et la paroi transversale 35. L'ensemble électronique 30 comporte une ou plusieurs capacités 57, au moins un transistor et éventuellement une sonde de mesure, par exemple de température. The electronic assembly 30 is placed between the stator 9 of the machine and the transverse wall 35. The electronic assembly 30 comprises one or more capacitors 57, at least one transistor and optionally a measurement probe, for example temperature.

Claims

REVENDICATIONS
1 . Compresseur de sur-alimentation électrique de véhicule automobile, ce compresseur comportant : 1. Motor vehicle over-power compressor, this compressor comprising:
une machine électrique tournante (7),  a rotating electric machine (7),
une roue de compresseur (2) agencée pour être entraînée en rotation par la machine électrique,  a compressor wheel (2) arranged to be rotated by the electric machine,
un ensemble électronique (30) relié électriquement à la machine électrique,  an electronic assembly (30) electrically connected to the electric machine,
un canal de refroidissement (50) agencé pour refroidir au moins l'ensemble électronique, ce canal recevant un liquide de refroidissement,  a cooling channel (50) arranged to cool at least the electronic assembly, this channel receiving a coolant,
un chemin de refroidissement (31 ) pour une circulation d'air agencée pour refroidir la machine électrique et/ou l'ensemble électronique en plus du canal de refroidissement à liquide.  a cooling path (31) for an air flow arranged to cool the electric machine and / or the electronic assembly in addition to the liquid cooling channel.
2. Compresseur selon la revendication précédente, le compresseur comprenant un boîtier (8) et le chemin de refroidissement comprenant au moins un orifice formé dans le boîtier pour la circulation d'air, notamment une pluralité d'orifices, notamment au moins un orifice d'entrée (32) et un orifice de sortie d'air (33). 2. Compressor according to the preceding claim, the compressor comprising a housing (8) and the cooling path comprising at least one orifice formed in the housing for air circulation, in particular a plurality of orifices, in particular at least one orifice. inlet (32) and an air outlet (33).
3. Compresseur selon l'une des revendications précédentes, le chemin de refroidissement d'air est au moins partiellement entre la roue de compresseur (2) et la machine électrique. 3. Compressor according to one of the preceding claims, the air cooling path is at least partially between the compressor wheel (2) and the electric machine.
4. Compresseur selon l'une des revendications précédentes, la machine électrique comporte un couvercle pourvu d'orifices et le chemin de refroidissement par air passe par ces orifices. 4. Compressor according to one of the preceding claims, the electric machine comprises a lid provided with orifices and the air cooling path passes through these orifices.
5. Compresseur selon l'une des revendications précédentes, le chemin de refroidissement vient en contact direct avec au moins certains composants de l'ensemble électronique. 5. Compressor according to one of the preceding claims, the cooling path comes into direct contact with at least some components of the electronic assembly.
6. Compresseur selon l'une des revendications précédentes, le chemin de refroidissement par air est agencé pour refroidir le stator (9) de la machine. 6. Compressor according to one of the preceding claims, the air cooling path is arranged to cool the stator (9) of the machine.
7. Compresseur selon l'une des revendications précédentes, comprenant une paroi transversale (35) séparant la roue de la machine électrique, cette paroi comprenant le canal de refroidissement (50). 7. Compressor according to one of the preceding claims, comprising a transverse wall (35) separating the wheel from the electric machine, this wall comprising the cooling channel (50).
8. Compresseur selon la revendication 7, la paroi transversale (35) coopère avec un roulement, notamment un roulement à billes, de l'arbre de la machine électrique. 8. Compressor according to claim 7, the transverse wall (35) cooperates with a bearing, in particular a ball bearing, of the shaft of the electric machine.
9. Compresseur selon l'une des revendications 7 ou 8, l'ensemble électronique est placé sur la paroi transversale (35). 9. Compressor according to one of claims 7 or 8, the electronic assembly is placed on the transverse wall (35).
10. Compresseur selon l'une des revendications 7 à 9, l'ensemble électronique est placé entre le stator de la machine et la paroi transversale. 10. Compressor according to one of claims 7 to 9, the electronic assembly is placed between the stator of the machine and the transverse wall.
1 1 . Compresseur selon l'une des revendications précédentes, l'ensemble électronique comporte au moins un composant électronique de puissance, notamment une capacité (57). 1 1. Compressor according to one of the preceding claims, the electronic assembly comprises at least one electronic power component, in particular a capacitor (57).
12. Compresseur selon l'une des revendications précédentes, la machine électrique est un moteur dont le rotor comporte au moins un aimant permanent. 12. Compressor according to one of the preceding claims, the electric machine is a motor whose rotor comprises at least one permanent magnet.
PCT/EP2016/071119 2015-09-07 2016-09-07 Electric supercharging compressor WO2017042236A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1558262A FR3040741B1 (en) 2015-09-07 2015-09-07 COMPRESSOR OF OVER-POWER SUPPLY
FR1558262 2015-09-07

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WO2017042236A1 true WO2017042236A1 (en) 2017-03-16

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WO2015057422A1 (en) * 2013-10-14 2015-04-23 Borgwarner Inc. Electrical boosting device

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EP2733326A1 (en) * 2011-07-15 2014-05-21 Mitsubishi Heavy Industries, Ltd. Electric supercharging device and multi-stage supercharging system
DE102013109136A1 (en) * 2012-08-24 2014-02-27 Ecomotors International, Inc. Electric machine e.g. electric motor has shield that is provided to prevent the contact of coolant with rotor, and hollow cylindrical portion that is formed in air gap of stator and rotor
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FR3040741B1 (en) 2017-09-01

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