WO2020260822A1 - Motor support for a motor vehicle heating, ventilation and/or air conditioning device - Google Patents

Motor support for a motor vehicle heating, ventilation and/or air conditioning device Download PDF

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Publication number
WO2020260822A1
WO2020260822A1 PCT/FR2020/051099 FR2020051099W WO2020260822A1 WO 2020260822 A1 WO2020260822 A1 WO 2020260822A1 FR 2020051099 W FR2020051099 W FR 2020051099W WO 2020260822 A1 WO2020260822 A1 WO 2020260822A1
Authority
WO
WIPO (PCT)
Prior art keywords
finger
motor
housing
elastomeric material
rings
Prior art date
Application number
PCT/FR2020/051099
Other languages
French (fr)
Inventor
Saad Bennouna
Tudor RAVINEALA
Clara DEGORCE-DUMAS
Clémence KWACZEWSKI
Olivier Cheriaux
Original Assignee
Valeo Systemes Thermiques
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 Thermiques filed Critical Valeo Systemes Thermiques
Publication of WO2020260822A1 publication Critical patent/WO2020260822A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • 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
    • 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
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present invention relates to the field of heating, ventilation and / or air conditioning devices for motor vehicles.
  • the invention relates more particularly to an electric motor support for such a device.
  • a heating, ventilation and / or air conditioning device which makes it possible to generate an air flow.
  • a device also makes it possible to manage the temperature and the distribution within the passenger compartment of the vehicles of the air flow created.
  • a heating, ventilation and / or air conditioning device comprises, among other things, a fan comprising a fan wheel driven in rotation by an electric motor.
  • the electric motor is in particular electronically commutated, driven by a power supply module.
  • An electronically commutated electric motor or brushless direct current motor (also known by the English name of "brushless"), comprises a rotor and stator assembly, each of these components carrying electromagnetic elements including the interaction generates the displacement of the rotor relative to the stator, and further the displacement of the fan wheel.
  • the electric motor is assembled in the heating, ventilation and / or vibration device via a motor support which comprises an inner ring configured to accommodate the stator of the electric motor and an outer ring suitable for being fixed directly or indirectly to a structural element of the vehicle.
  • a decoupling element is interposed between the inner ring and the outer ring.
  • This decoupling element aims to limit, or even prevent, the transmission of vibrations and / or stresses generated by the rotation of the electric motor, from the inner ring, to the outer ring. This reduces the transmission of vibrations to the heating, ventilation and / or air conditioning device, which could be felt by the occupants of the vehicle.
  • the decoupling element allows relative movement of the inner ring relative to the outer ring, in particular tilting and / or relative translation of the inner ring relative to the outer ring.
  • the motor support may further include a protruding finger which protrudes from a first of the two rings to fit into a housing formed in the second of the two rings, and on the other hand means for reducing the displacement of the projecting element inside said housing. The tilting is thus limited due to the fact that the finger abuts in the housing.
  • the object of the present invention is to provide an engine support, in particular for a heating, ventilation and / or air conditioning device of a motor vehicle, which is simple to produce and which makes it possible to reduce the rumble perceived at the inside the vehicle cabin, even at high engine speeds.
  • an engine support is proposed, in particular for a motor-fan unit of a vehicle ventilation system, comprising:
  • two coaxial rings including an inner ring suitable for receiving one or more engine elements and an outer ring suitable for being fixed to a housing forming a structural element,
  • the limiting element comprising a finger which projects from a first of the two rings and is housed in a housing formed in the second of the two rings, two axial stops being formed in the housing to limit movement of the finger in the housing in the direction of the common axis of the two rings, at least one of the axial stops protruding into the housing, of the material elastomer being disposed between the finger and each of the two axial stops and being in contact with the finger and each of the two axial stops.
  • the finger is in contact with each of the axial stops via the elastomeric material, for example SEBS (polystyrene-b-poly (ethylene-butylene) -b-polystyrene).
  • SEBS polystyrene-b-poly (ethylene-butylene) -b-polystyrene
  • the behavior of the device is stiffened in a direction parallel to the common axis of the two rings.
  • the presence of the elastomeric material makes it possible to add damping of movements in this direction. This makes it possible to control the travel of the finger inside the housing, while limiting, if not eliminating, the rumble perceived inside the vehicle cabin.
  • the motor support comprises one or more of the following characteristics, taken alone or in combination:
  • the elastomeric material is compressed between the finger and each of the two axial stops, the elastomeric material preferably having a compression ratio greater than or equal to 5% and / or less than or equal to 25%, more preferably still substantially equal to 15% ;
  • the elastomeric material has a hardness greater than or equal to 40 shore and / or less than or equal to 60 shore;
  • the at least one projecting axial stop extends in the direction of the common axis of the inner and outer rings;
  • the motor support comprises two axial stops projecting in the housing, arranged on either side of the finger, the two projecting axial stops facing each other;
  • the motor support comprises the same thickness of elastomer between the finger and each of the two axial stops;
  • the elastomeric material is overmolded on two opposite faces of the finger facing the axial stops;
  • the decoupling element comprises a ring of elastomeric material, overmolded between the inner ring and the outer ring;
  • the motor support comprises at least one projecting axial stop formed by a lug from a base attached to the second ring;
  • the motor support comprises at least one projecting axial stop formed by a lug extending from an interior surface of a receiving cavity formed in a housing constituting an air deflector;
  • the at least one protruding stopper extends in a direction substantially perpendicular to the direction of elongation of the finger
  • the elastomeric material is overmolded on at least one of the two axial stops, preferably on each of the two axial stops;
  • the finger has an "H" cross section
  • the at least one projecting axial stop is formed by a lug extending from a base of a pin, through a wall of the housing when the pin is attached to the second ring;
  • At least one projecting axial stop is formed by a cylindrical relief projecting from a deflector, the cylindrical relief extending through a wall of the housing;
  • At least one projecting axial stop consists of at least one boss of a wall defining the housing, the boss extending towards the interior of the housing;
  • the motor support comprises a plurality of fingers, preferably regularly distributed angularly around the common axis of the two rings, each finger being housed, more preferably, in a respective housing in the second ring; and
  • the motor support has two axial stops associated with each of the fingers
  • the motor support has at least three fingers, preferably exactly three fingers.
  • a fan in particular for a ventilation installation for a vehicle, comprising an electric motor, in particular a brushless electric motor, a fan wheel, driven in rotation by the electric motor, and a motor support as described above in all its combinations, the motor, in particular the stator of the motor, being fixed to the inner ring of the motor support.
  • a heating, ventilation and / or air conditioning device for a motor vehicle is also described, comprising a fan as described above in all its combinations.
  • Figure 1 is a schematic side view of an example of a fan device for a heating, ventilation and / or air conditioning device for a motor vehicle.
  • Figure 2 is a schematic perspective view of an assembly formed by the motor support and a housing of the fan device of Figure 1.
  • Figure 3 is a schematic perspective view of a sub-assembly of the motor support of Figure 2.
  • Figure 4 is a schematic side view of a detail of the sub-assembly of Figure 3.
  • Figure 5 is a schematic perspective view of a pin implemented in the motor support of Figures 2 and 3.
  • FIG 1 illustrates schematically a side view of a fan device 10 for a heating, ventilation and / or air conditioning device for a motor vehicle.
  • a heating, ventilation and / or air conditioning device for a motor vehicle comprises an aeration circuit, a fan device 10 for moving the air in the aeration circuit, and means for heating. and / or means for cooling the air flow set in motion by the fan device 10.
  • the fan device 10 essentially comprises a fan wheel 12 and an electric motor, masked here by a motor cover 14, to drive in rotation about its axis A, the wheel fan 12.
  • the electric motor is for example a brushless motor.
  • the fan device 10 further comprises a motor support 16 making it possible to assemble the electric motor on a support.
  • the electric motor is connected to a deflector 18 of the motor support 16, the deflector 18 forming part of the aeration circuit of the heating, ventilation and / or air conditioning device.
  • the motor support 16 essentially comprises an inner ring 20, an outer ring 22 and a decoupling element 24 interposed between the inner ring 20 and the outer ring 22.
  • the decoupling element 24 aims limiting the transmission of vibrations from one of the two rings 20, 22 to the other of the two rings 20, 22.
  • the decoupling element 24 is here formed by a ring of elastomeric material.
  • the elastomeric material is SEBS.
  • the decoupling ring 24 is for example molded onto the inner 20 and outer 22 rings. The decoupling ring 24 thus secures the inner 20 and outer 22 rings.
  • the inner 20, outer 22 and decoupling 24 rings are coaxial, with an axis common axis of rotation A of fan wheel 12.
  • the assembly formed by the inner 20, outer 22 and decoupling 24 rings is received in a cavity of the deflector 18.
  • the inner ring 20 is made integral with the stator (here not visible) of the motor.
  • the outer ring 22 is here fixed to the deflector 18.
  • a layer of elastomeric material may be interposed between the outer ring 22 and the deflector 18.
  • the inner ring 20 has a plurality of fingers 26.
  • the fingers 26 extend radially outwards from the outer surface of the inner ring 20.
  • each finger 26 has an H section, comprising two substantially planar surfaces 26i, 262 interconnected by a core 263.
  • the planar surfaces 26i, 262 are here normal to the direction of the axis A common to the rings 20, 22, 24.
  • Each flat surface 26i, 262 is here covered with a layer 27i, 272 of elastomeric material.
  • the inner ring 20 has three fingers 26.
  • the fingers 26 are preferably regularly distributed angularly around the axis A of the inner ring 20.
  • the outer ring 22 for its part comprises a plurality of housings 28.
  • Each housing 28 is adapted to receive a respective finger 26.
  • the housings 28 thus open out at least on the radially internal surface of the outer ring 22.
  • the housings 28 are through, opening on the radially internal surface of the outer ring 22 and on the radially outer surface of the ring outer 22.
  • the housings 28 are preferably regularly distributed angularly around the axis A of the outer ring 22.
  • tilting is meant here any movement of one of the rings 20, 22 relative to the other 20, 22, outside the common median plane of the rings 20, 22, normal to the direction of the axis A common to the two rings 20, 22.
  • the housings 28 have dimensions such that a clearance exists between the walls of each housing 28 and the finger 26 which is received therein. In particular, a clearance exists in the orthoradial direction.
  • the walls of each housing 28 are here covered with elastomeric material.
  • the elastomer layer 30 which covers the walls of each housing 28 is integral with the decoupling ring 24.
  • each housing 28 the finger 26 cooperates with two axial stops 32, 34 to further limit the axial movement of the finger 26 in the housing 28.
  • the two axial stops 32, 34 protrude from the walls of the housing 28.
  • axial stop is meant here a stop limiting the movement in the direction of the common axis A of the rings 20, 22, 24.
  • the two axial stops 32, 34 are here in look at each other. In other words, the two axial stops 32, 34 are substantially aligned in a direction parallel to the common axis A of the two rings 20, 22, 24.
  • the elastomeric material of one of the layers 27i, 272 is in contact between one of the axial stops 32, 34 and one of the flat surfaces 26i, 262 of the finger 26.
  • the elastomeric material of the layers 27i, 272 present between the axial stops 32, 34 and the flat surfaces 26i, 262 is here compressed.
  • the elastomeric material of the layers 27i, 272 present between the axial stops 32, 34 and the flat surfaces 26i, 262 has a compression ratio, axial, greater than or equal to 5% and / or less than or equal to 25%, preferably substantially equal to 15%.
  • the axial compression ratio ZL, Z2 as the ratio between:
  • the possible deformation of the elastomeric material makes it possible to limit the transmission of vibrations from one of the two rings 20, 22 to the other of the two rings 20, 22.
  • the compression of the elastomeric material of the layers 27i, 212 limits the movement of the fingers 26 and, by the same token, the possible relative movements of the two rings 20, 22.
  • the elastomeric material forming the layers 27i, 272 can be chosen according to its hardness.
  • This elastomeric material may in particular have a hardness greater than or equal to 40 shore and / or less than or equal to 60 shore.
  • the thicknesses ei, ez, on the one hand, and / or ei °, ez °, on the other hand, are advantageously substantially equal. This allows centering of the fingers 26 between the two axial stops 32, 34.
  • the elastomeric material of the layers 27i, 21z can advantageously be overmolded on the surfaces 26i, 262 of the fingers 26, in particular concurrently with the overmolding of the decoupling ring 24.
  • the elastomeric material is thus maintained in position relative to the fingers 26
  • the mounting of the inner ring 20 relative to the outer ring 22 is also facilitated.
  • the first axial stop is here formed by a pin 32 of a pin 36.
  • the pin 36 also comprises a base 38, substantially planar, from which the pin 32 extends along an axis B intended to be parallel to the common axis A of the rings 20, 22, 24, when the pin 36 is fixed on the outer ring 22.
  • the base 38 has here two openings 40 intended to be mounted tight on two complementary cylindrical reliefs, formed on the outer ring 22.
  • two notches 42 are provided at the longitudinal ends of the base 38.
  • One of the two notches 42 receives a complementary rib formed by the outer ring 22, to guide the mounting of the pin 36 on the outer ring 22
  • the lug 32 is mounted tight in a hole in the outer ring 22, so as to protrude into a housing 28 and thus form the first axial stop 32. More precisely, the lug 32 extends in the direction of l 'A common axis of the rings 20, 22, 24, since s one of the walls of the housing 28, towards the finger 26 which is received therein.
  • the second axial stop 34 is here formed by the deflector 18 which comprises projecting cylindrical reliefs, passing through an opening in the outer ring 22, so as to protrude into the housings 28, from a wall opposite the first axial stop 32.
  • the projecting cylinders also extend in a direction parallel to the direction of the axis A common to the rings 20, 22, 24.
  • a single axial stop projecting in the housing 28 In this case, the finger received in the housing can be clamped between the projecting axial stop, on the one hand, and the wall of the housing opposite to the projecting axial stop, on the other hand.
  • the axial stops can be produced by means other than those described in the example above.
  • one and / or the other of the axial stops may / may be produced by a boss in the wall of the housing, extending towards the finger received in the housing.
  • elastomeric material is present on the faces of the fingers facing the axial stops.
  • elastomeric material can be provided on the axial stops, whether they are protruding or not.
  • contact between two layers of elastomeric material is avoided.
  • only one of the two contacting surfaces is preferably covered with elastomeric material.
  • the inner ring forms fingers received in housings formed in the outer ring.
  • the reverse configuration can however be envisaged, according to which the outer ring has fingers oriented radially towards the inner ring and received in housings formed in this inner ring.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a motor support (16) for a motor-fan unit of a vehicle ventilation system, comprising two coaxial rings (20; 22), a decoupling element (24) between the two coaxial rings (20; 22), and an element (26, 28) for limiting the tilting of the inner ring (20) relative to the outer ring (22). The limiting element comprises a finger (26) which projects from a first ring (20) and is received in a housing (28) in the second ring (22). Two axial stops (32; 34) are formed in the housing (28) in order to limit the movement of the finger (26) in the housing (28) in the direction of the axis (A) of the two rings (20; 22). Elastomer material (271, 272) is arranged between the finger (26) and each of the axial stops (32; 34), in contact with the finger (26) and each of the axial stops (32; 34).

Description

SUPPORT DE MOTEUR POUR DISPOSITIF DE CHAUFFAGE, DE VENTILATION ET/OU DE CLIMATISATION POUR MOTOR SUPPORT FOR HEATING, VENTILATION AND / OR AIR CONDITIONING DEVICE FOR
VEHICULE AUTOMOBILE MOTOR VEHICLE
Domaine technique Technical area
[0001] La présente invention se rapporte au domaine des dispositifs de chauffage, de ventilation et/ou de climatisation pour véhicules automobiles. L’invention concerne plus particulièrement un support de moteur électrique pour un tel dispositif. The present invention relates to the field of heating, ventilation and / or air conditioning devices for motor vehicles. The invention relates more particularly to an electric motor support for such a device.
Technique antérieure Prior art
[0002] Les véhicules automobiles sont couramment équipés d’un dispositif de chauffage, ventilation et/ou climatisation, qui permet de générer un flux d'air. Un tel dispositif permet également de gérer la température et la distribution au sein de l'habitacle des véhicules du flux d’air créé. Un tel dispositif de chauffage, ventilation et/ou climatisation comporte, entre autres, un ventilateur comprenant une roue de ventilateur entraînée en rotation par un moteur électrique. Le moteur électrique est notamment à commutation électronique, piloté par un module d'alimentation. [0002] Motor vehicles are commonly equipped with a heating, ventilation and / or air conditioning device, which makes it possible to generate an air flow. Such a device also makes it possible to manage the temperature and the distribution within the passenger compartment of the vehicles of the air flow created. Such a heating, ventilation and / or air conditioning device comprises, among other things, a fan comprising a fan wheel driven in rotation by an electric motor. The electric motor is in particular electronically commutated, driven by a power supply module.
[0003] Un moteur électrique à commutation électronique, ou moteur à courant continu sans balai (connu également sous la dénomination anglaise de « brushless »), comporte un ensemble rotor et stator, chacun de ces composants étant porteur d'éléments électromagnétiques dont l'interaction génère le déplacement du rotor relativement au stator, et plus loin le déplacement de la roue de ventilateur. An electronically commutated electric motor, or brushless direct current motor (also known by the English name of "brushless"), comprises a rotor and stator assembly, each of these components carrying electromagnetic elements including the interaction generates the displacement of the rotor relative to the stator, and further the displacement of the fan wheel.
[0004] Le moteur électrique est assemblé dans le dispositif de chauffage, ventilation et/ou vibration par l’intermédiaire d’un support de moteur qui comprend une bague intérieure configurée pour accueillir le stator du moteur électrique et une bague extérieure apte à être fixée, directement ou indirectement, à un élément de structure du véhicule. [0004] The electric motor is assembled in the heating, ventilation and / or vibration device via a motor support which comprises an inner ring configured to accommodate the stator of the electric motor and an outer ring suitable for being fixed directly or indirectly to a structural element of the vehicle.
[0005] Un élément de découplage est interposé entre la bague intérieure et la bague extérieure. Cet élément de découplage vise à limiter, voire à empêcher, la transmission de vibrations et/ou de contraintes générées du fait de la rotation du moteur électrique, depuis la bague intérieure, vers la bague extérieure. On réduit ainsi la transmission des vibrations vers le dispositif de chauffage, ventilation et/ou climatisation, qui pourraient être ressenties par les occupants du véhicule. [0005] A decoupling element is interposed between the inner ring and the outer ring. This decoupling element aims to limit, or even prevent, the transmission of vibrations and / or stresses generated by the rotation of the electric motor, from the inner ring, to the outer ring. This reduces the transmission of vibrations to the heating, ventilation and / or air conditioning device, which could be felt by the occupants of the vehicle.
[0006] L’élément de découplage permet un mouvement relatif de la bague intérieure par rapport à la bague extérieure, notamment un basculement et/ou une translation relative de la bague intérieure par rapport à la bague extérieure. [0006] The decoupling element allows relative movement of the inner ring relative to the outer ring, in particular tilting and / or relative translation of the inner ring relative to the outer ring.
[0007] Pour limiter le basculement possible de la bague intérieure par rapport à la bague extérieure, le support de moteur peut comprendre en outre un doigt saillant qui s’étend en saillie d’une première des deux bagues pour venir loger dans un logement formé dans la deuxième des deux bagues, et d’autre part des moyens de réduction du débattement de l’élément saillant à l’intérieur dudit logement. Le basculement est ainsi limité du fait que le doigt vient en butée dans le logement. To limit the possible tilting of the inner ring relative to the outer ring, the motor support may further include a protruding finger which protrudes from a first of the two rings to fit into a housing formed in the second of the two rings, and on the other hand means for reducing the displacement of the projecting element inside said housing. The tilting is thus limited due to the fact that the finger abuts in the housing.
[0008] Dans cette configuration, il s’est avéré qu’à haut régime moteur - c’est-à- dire à hautes fréquences de rotation du moteur - un grondement (ou « rumble noise ») peut toujours être perçu à l’intérieur de l’habitacle du véhicule. [0008] In this configuration, it turned out that at high engine speed - that is to say at high engine rotation frequencies - a rumble (or "rumble noise") can always be perceived at the engine. interior of the vehicle cabin.
[0009] Le but de la présente invention est de proposer un support de moteur, notamment pour un dispositif de chauffage, ventilation et/ou climatisation d’un véhicule automobile, qui est de réalisation simple et qui permet de réduire le grondement perçu à l’intérieur de l’habitacle du véhicule, même à haut régime moteur. The object of the present invention is to provide an engine support, in particular for a heating, ventilation and / or air conditioning device of a motor vehicle, which is simple to produce and which makes it possible to reduce the rumble perceived at the inside the vehicle cabin, even at high engine speeds.
Résumé summary
[0010] À cet effet, il est proposé un support de moteur, notamment pour groupe moto-ventilateur d’une installation de ventilation pour véhicule, comprenant : [0010] To this end, an engine support is proposed, in particular for a motor-fan unit of a vehicle ventilation system, comprising:
deux bagues coaxiales, dont une bague intérieure apte à recevoir un ou plusieurs éléments du moteur et une bague extérieure apte à être fixée sur un boîtier formant élément de structure, two coaxial rings, including an inner ring suitable for receiving one or more engine elements and an outer ring suitable for being fixed to a housing forming a structural element,
un élément de découplage entre les deux bagues coaxiales, et a decoupling element between the two coaxial rings, and
un élément de limitation du basculement de la bague intérieure par rapport à la bague extérieure, l’élément de limitation comprenant un doigt qui s'étend en saillie d'une première des deux bagues et est logé dans un logement formé dans la deuxième des deux bagues, deux butées axiales étant formées dans le logement pour limiter le déplacement du doigt dans le logement dans la direction de l’axe commun des deux bagues, au moins l’une des butées axiales étant saillante dans le logement, du matériau élastomère étant disposé entre le doigt et chacune des deux butées axiales et étant en contact avec le doigt et chacune des deux butées axiales. an element for limiting the tilting of the inner ring relative to the outer ring, the limiting element comprising a finger which projects from a first of the two rings and is housed in a housing formed in the second of the two rings, two axial stops being formed in the housing to limit movement of the finger in the housing in the direction of the common axis of the two rings, at least one of the axial stops protruding into the housing, of the material elastomer being disposed between the finger and each of the two axial stops and being in contact with the finger and each of the two axial stops.
[0011] Ainsi, le doigt est en contact avec chacune des butées axiales par l’intermédiaire du matériau élastomère, par exemple du SEBS (polystyrène-b- poly(éthylène-butylène)-b-polystyrène). De cette façon, le comportement du dispositif est rigidifié dans une direction parallèle à l’axe commun des deux bagues. De plus, la présence du matériau élastomère permet d’ajouter un amortissement des déplacements selon cette direction. Ceci permet de contrôler le débattement du doigt à l’intérieur du logement, tout en limitant, voire supprimant, le grondement perçu à l’intérieur de l’habitacle du véhicule. [0011] Thus, the finger is in contact with each of the axial stops via the elastomeric material, for example SEBS (polystyrene-b-poly (ethylene-butylene) -b-polystyrene). In this way, the behavior of the device is stiffened in a direction parallel to the common axis of the two rings. In addition, the presence of the elastomeric material makes it possible to add damping of movements in this direction. This makes it possible to control the travel of the finger inside the housing, while limiting, if not eliminating, the rumble perceived inside the vehicle cabin.
[0012] De préférence, le support de moteur comporte une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison : [0012] Preferably, the motor support comprises one or more of the following characteristics, taken alone or in combination:
- le matériau élastomère est comprimé entre le doigt et chacune des deux butées axiales, le matériau élastomère ayant de préférence un taux de compression supérieur ou égal à 5% et/ou inférieur ou égal à 25%, de préférence encore sensiblement égal à 15% ; the elastomeric material is compressed between the finger and each of the two axial stops, the elastomeric material preferably having a compression ratio greater than or equal to 5% and / or less than or equal to 25%, more preferably still substantially equal to 15% ;
- le matériau élastomère a une dureté supérieure ou égale à 40 shore et/ou inférieure ou égale à 60 shore ; the elastomeric material has a hardness greater than or equal to 40 shore and / or less than or equal to 60 shore;
- la au moins une butée axiale saillante s'étend selon la direction de l’axe commun des bagues intérieure et extérieure ; - the at least one projecting axial stop extends in the direction of the common axis of the inner and outer rings;
- le support de moteur comprend deux butées axiales saillantes dans le logement, disposées de part et d’autre du doigt, les deux butées axiales saillantes étant en regard l’une de l’autre ; - the motor support comprises two axial stops projecting in the housing, arranged on either side of the finger, the two projecting axial stops facing each other;
- le support de moteur comprend une même épaisseur d’élastomère entre le doigt et chacune des deux butées axiales ; - the motor support comprises the same thickness of elastomer between the finger and each of the two axial stops;
- le matériau élastomère est surmoulé sur deux faces opposées du doigt faisant face aux butées axiales ; the elastomeric material is overmolded on two opposite faces of the finger facing the axial stops;
- les deux faces opposées du doigt, faisant face aux butées axiales sont planes ; - l’élément de découplage comporte une bague en matériau élastomère, surmoulée entre la bague intérieure et la bague extérieure ; - the two opposite faces of the finger, facing the axial stops are plane; the decoupling element comprises a ring of elastomeric material, overmolded between the inner ring and the outer ring;
- le support de moteur comprend au moins une butée axiale saillante formée par un ergot issu d’une base rapportée sur la deuxième bague ; - the motor support comprises at least one projecting axial stop formed by a lug from a base attached to the second ring;
- le support de moteur comprend au moins une butée axiale saillante formée par un ergot s’étendant depuis une surface intérieure d'une cavité de réception ménagée dans un boîtier constituant un déflecteur d’air ; - the motor support comprises at least one projecting axial stop formed by a lug extending from an interior surface of a receiving cavity formed in a housing constituting an air deflector;
- la au moins une butée saillante s’étend selon une direction sensiblement perpendiculaire à la direction d’allongement du doigt ; - the at least one protruding stopper extends in a direction substantially perpendicular to the direction of elongation of the finger;
- le matériau élastomère est surmoulé sur au moins une des deux butées axiales, de préférence sur chacune des deux butées axiales ; - The elastomeric material is overmolded on at least one of the two axial stops, preferably on each of the two axial stops;
- le doigt a une section transversale en « H » ; - the finger has an "H" cross section;
- la au moins une butée axiale saillante est formée par un ergot s’étendant depuis une base d’un pion, à travers une paroi du logement lorsque le pion est rapporté sur la deuxième bague ; - the at least one projecting axial stop is formed by a lug extending from a base of a pin, through a wall of the housing when the pin is attached to the second ring;
- au moins une butée axiale saillante est formée par un relief cylindrique saillant d’un déflecteur, le relief cylindrique s’étendant à travers une paroi du logement ; - at least one projecting axial stop is formed by a cylindrical relief projecting from a deflector, the cylindrical relief extending through a wall of the housing;
- au moins une butée axiale saillante consiste en au moins un bossage d’une paroi définissant le logement, le bossage s’étendant vers l’intérieur du logement ; - at least one projecting axial stop consists of at least one boss of a wall defining the housing, the boss extending towards the interior of the housing;
- le support moteur comporte une pluralité de doigts, de préférence régulièrement répartis angulairement autour de l’axe commun des deux bagues, chaque doigt étant logé, de préférence encore, dans un logement respectif dans la deuxième bague ; et - The motor support comprises a plurality of fingers, preferably regularly distributed angularly around the common axis of the two rings, each finger being housed, more preferably, in a respective housing in the second ring; and
- le support moteur comporte deux butées axiales associées à chacun des doigts ; the motor support has two axial stops associated with each of the fingers;
- le support moteur comporte au moins trois doigts, de préférence exactement trois doigts. the motor support has at least three fingers, preferably exactly three fingers.
[0013] Selon un autre aspect, il est décrit un ventilateur, en particulier pour installation de ventilation pour véhicule, comportant un moteur électrique, en particulier un moteur électrique sans balai, une roue de ventilateur, entraînée en rotation par le moteur électrique, et un support de moteur tel que décrit ci-avant dans toutes ses combinaisons, le moteur, en particulier le stator du moteur, étant fixé sur la bague intérieure du support de moteur. [0014] Il est encore décrit un dispositif de chauffage, de ventilation et/ou de climatisation pour un véhicule automobile, comportant un ventilateur tel que décrit ci-avant dans toutes ses combinaisons. According to another aspect, there is described a fan, in particular for a ventilation installation for a vehicle, comprising an electric motor, in particular a brushless electric motor, a fan wheel, driven in rotation by the electric motor, and a motor support as described above in all its combinations, the motor, in particular the stator of the motor, being fixed to the inner ring of the motor support. A heating, ventilation and / or air conditioning device for a motor vehicle is also described, comprising a fan as described above in all its combinations.
Brève description des dessins Brief description of the drawings
[0015] D'autres caractéristiques, détails et avantages ressortiront plus clairement à la lecture de la description donnée ci-après à titre indicatif en relation avec les figures suivantes. Other characteristics, details and advantages will emerge more clearly on reading the description given below by way of indication in relation to the following figures.
[0016] La figure 1 est une vue schématique de côté d’un exemple de dispositif de ventilateur pour dispositif de chauffage, de ventilation et/ou de climatisation pour véhicule automobile. [0016] Figure 1 is a schematic side view of an example of a fan device for a heating, ventilation and / or air conditioning device for a motor vehicle.
[0017] La figure 2 est une vue schématique en perspective d’un ensemble formé par le support de moteur et un boîtier du dispositif de ventilateur de la figure 1. [0017] Figure 2 is a schematic perspective view of an assembly formed by the motor support and a housing of the fan device of Figure 1.
[0018] La figure 3 est une vue schématique en perspective d’un sous-ensemble du support moteur de la figure 2. [0018] Figure 3 is a schematic perspective view of a sub-assembly of the motor support of Figure 2.
[0019] La figure 4 est une vue schématique de côté d’un détail du sous-ensemble de la figure 3. [0019] Figure 4 is a schematic side view of a detail of the sub-assembly of Figure 3.
[0020] La figure 5 est une vue schématique en perspective d’un pion mis en oeuvre dans le support de moteur des figures 2 et 3. [0020] Figure 5 is a schematic perspective view of a pin implemented in the motor support of Figures 2 and 3.
Description détaillée detailed description
[0021] La figure 1 illustre de manière schématique une vue de côté d’un dispositif de ventilateur 10 pour un dispositif de chauffage, de ventilation et/ou de climatisation pour véhicule automobile. Classiquement, un tel dispositif de chauffage, de ventilation et/ou de climatisation pour véhicule automobile comporte, un circuit d’aération, un dispositif de ventilateur 10 pour mettre en mouvement l’air dans le circuit d’aération, et des moyens pour chauffer et/ou des moyens pour rafraîchir le flux d’air mis en mouvement par le dispositif de ventilateur 10. [0021] Figure 1 illustrates schematically a side view of a fan device 10 for a heating, ventilation and / or air conditioning device for a motor vehicle. Conventionally, such a heating, ventilation and / or air conditioning device for a motor vehicle comprises an aeration circuit, a fan device 10 for moving the air in the aeration circuit, and means for heating. and / or means for cooling the air flow set in motion by the fan device 10.
[0022] Comme illustré à la figure 1 , le dispositif de ventilateur 10 comporte essentiellement une roue de ventilateur 12 et un moteur électrique, masqué ici par un capot moteur 14, pour entraîner en rotation autour de son axe A, la roue de ventilateur 12. Le moteur électrique est par exemple un moteur sans balai. Le dispositif de ventilateur 10 comporte encore un support de moteur 16 permettant d’assembler le moteur électrique sur un support. En l’espèce, le moteur électrique est relié à un déflecteur 18 du support de moteur 16, le déflecteur 18 formant une partie du circuit d’aération du dispositif de chauffage, de ventilation et/ou de climatisation. As illustrated in Figure 1, the fan device 10 essentially comprises a fan wheel 12 and an electric motor, masked here by a motor cover 14, to drive in rotation about its axis A, the wheel fan 12. The electric motor is for example a brushless motor. The fan device 10 further comprises a motor support 16 making it possible to assemble the electric motor on a support. In this case, the electric motor is connected to a deflector 18 of the motor support 16, the deflector 18 forming part of the aeration circuit of the heating, ventilation and / or air conditioning device.
[0023] Dans la suite, on décrit plus en détail le support de moteur 16. In the following, the motor support 16 is described in more detail.
[0024] Comme visible sur les figures, le support de moteur 16 comporte essentiellement une bague intérieure 20, une bague extérieure 22 et un élément de découplage 24 interposé entre la bague intérieure 20 et la bague extérieure 22. L’élément de découplage 24 vise à limiter la transmission des vibrations depuis l’une des deux bagues 20, 22 vers l’autre des deux bagues 20, 22. L’élément de découplage 24 est ici formé par une bague en matériau élastomère. À titre d’exemple, le matériau élastomère est du SEBS. La bague de découplage 24 est par exemple surmoulée sur les bagues intérieure 20 et extérieure 22. La bague de découplage 24 solidarise ainsi les bagues intérieure 20 et extérieure 22. Les bagues intérieure 20, extérieure 22 et de découplage 24 sont coaxiales, d’axe commun l’axe de rotation A de la roue de ventilateur 12. As visible in the figures, the motor support 16 essentially comprises an inner ring 20, an outer ring 22 and a decoupling element 24 interposed between the inner ring 20 and the outer ring 22. The decoupling element 24 aims limiting the transmission of vibrations from one of the two rings 20, 22 to the other of the two rings 20, 22. The decoupling element 24 is here formed by a ring of elastomeric material. For example, the elastomeric material is SEBS. The decoupling ring 24 is for example molded onto the inner 20 and outer 22 rings. The decoupling ring 24 thus secures the inner 20 and outer 22 rings. The inner 20, outer 22 and decoupling 24 rings are coaxial, with an axis common axis of rotation A of fan wheel 12.
[0025] L’ensemble formé par les bagues intérieure 20, extérieure 22 et de découplage 24, est reçu dans une cavité du déflecteur 18. La bague intérieure 20 est rendue solidaire du stator (ici non visible) du moteur. La bague extérieure 22 est ici fixée au déflecteur 18. Une couche de matériau élastomère peut être interposée entre la bague extérieure 22 et le déflecteur 18. The assembly formed by the inner 20, outer 22 and decoupling 24 rings is received in a cavity of the deflector 18. The inner ring 20 is made integral with the stator (here not visible) of the motor. The outer ring 22 is here fixed to the deflector 18. A layer of elastomeric material may be interposed between the outer ring 22 and the deflector 18.
[0026] Selon l’exemple représenté aux figures, la bague intérieure 20 a une pluralité de doigts 26. Les doigts 26 s’étendent radialement vers l’extérieur, depuis la surface extérieure de la bague intérieure 20. En l’espèce, chaque doigt 26 a une section en H, comprenant deux surfaces sensiblement planes 26i, 262 reliées entre elles par une âme 263. Les surfaces planes 26i, 262 sont ici normales à la direction de l’axe A commun aux bagues 20, 22, 24. Chaque surface plane 26i, 262 est ici recouverte d’une couche 27i, 272 de matériau élastomère. [0027] Dans l’exemple illustré, la bague intérieure 20 a trois doigts 26. Les doigts 26 sont de préférence régulièrement répartis angulairement autour de l’axe A de la bague intérieure 20. According to the example shown in the figures, the inner ring 20 has a plurality of fingers 26. The fingers 26 extend radially outwards from the outer surface of the inner ring 20. In this case, each finger 26 has an H section, comprising two substantially planar surfaces 26i, 262 interconnected by a core 263. The planar surfaces 26i, 262 are here normal to the direction of the axis A common to the rings 20, 22, 24. Each flat surface 26i, 262 is here covered with a layer 27i, 272 of elastomeric material. In the example illustrated, the inner ring 20 has three fingers 26. The fingers 26 are preferably regularly distributed angularly around the axis A of the inner ring 20.
[0028] La bague extérieure 22 comprend quant à elle une pluralité de logements 28. Chaque logement 28 est adapté à recevoir un doigt 26 respectif. Les logements 28 sont ainsi débouchant au moins sur la surface radialement interne de la bague extérieure 22. En l’espèce, les logements 28 sont traversant, débouchant sur la surface radialement interne de la bague extérieure 22 et sur la surface radialement externe de la bague extérieure 22. Les logements 28 sont de préférence régulièrement répartis angulairement autour de l’axe A de la bague extérieure 22. [0028] The outer ring 22 for its part comprises a plurality of housings 28. Each housing 28 is adapted to receive a respective finger 26. The housings 28 thus open out at least on the radially internal surface of the outer ring 22. In this case, the housings 28 are through, opening on the radially internal surface of the outer ring 22 and on the radially outer surface of the ring outer 22. The housings 28 are preferably regularly distributed angularly around the axis A of the outer ring 22.
[0029] La réception des doigts 26 dans les logements 28 permet de limiter le basculement relatif possible de la bague intérieure 20 par rapport à la bague extérieure 22. Par basculement, on entend ici tout mouvement d’une des bagues 20, 22 par rapport à l’autre 20, 22, en dehors du plan médian commun des bagues 20, 22, normal à la direction de l’axe A commun aux deux bagues 20, 22. The reception of the fingers 26 in the housings 28 makes it possible to limit the possible relative tilting of the inner ring 20 relative to the outer ring 22. By tilting is meant here any movement of one of the rings 20, 22 relative to the other 20, 22, outside the common median plane of the rings 20, 22, normal to the direction of the axis A common to the two rings 20, 22.
[0030] Dans l’exemple illustré, les logements 28 ont des dimensions telles, qu’un jeu existe entre les parois de chaque logement 28 et le doigt 26 qui y est reçu. Notamment, un jeu existe dans la direction orthoradiale. Les parois de chaque logement 28 sont ici recouvertes de matériau élastomère. De manière préférée, la couche d’élastomère 30 qui recouvre les parois de chaque logement 28 est venue de matière avec la bague de découplage 24. In the example illustrated, the housings 28 have dimensions such that a clearance exists between the walls of each housing 28 and the finger 26 which is received therein. In particular, a clearance exists in the orthoradial direction. The walls of each housing 28 are here covered with elastomeric material. Preferably, the elastomer layer 30 which covers the walls of each housing 28 is integral with the decoupling ring 24.
[0031] Comme cela est plus particulièrement visible sur la figure 4, dans chaque logement 28, le doigt 26 coopère avec deux butées axiales 32, 34 pour limiter encore le déplacement axial du doigt 26 dans le logement 28. Ici, les deux butées axiales 32, 34 font saillies des parois du logement 28. Par butée axiale, on entend ici une butée limitant le déplacement selon la direction de l’axe A commun des bagues 20, 22, 24. Les deux butées axiales 32, 34 sont ici en regard l’une de l’autre. En d’autres termes, les deux butées axiales 32, 34 sont sensiblement alignées selon une direction parallèle à l’axe A commun des deux bagues 20, 22, 24. [0032] Dans l’exemple illustré, du matériau élastomère de l’une des couches 27i, 272 est en contact entre l’une des butées axiales 32, 34 et l’une des surfaces planes 26i, 262 du doigt 26. On limite ainsi le débattement possible du doigt 26 dans le logement 28, selon la direction axiale A. Pour limiter encore ce débattement axial, le matériau élastomère des couches 27i, 272 présent entre les butées axiales 32, 34 et les surfaces planes 26i, 262 est ici comprimé. Par exemple, le matériau élastomère des couches 27i, 272 présent entre les butées axiales 32, 34 et les surfaces planes 26i, 262 a un taux de compression, axiale, supérieur ou égal à 5 % et/ou inférieure ou égal à 25 %, de préférence sensiblement égal à 15 %. On définit le taux de compression axiale ZL , Z2 comme le rapport entre : As is more particularly visible in Figure 4, in each housing 28, the finger 26 cooperates with two axial stops 32, 34 to further limit the axial movement of the finger 26 in the housing 28. Here, the two axial stops 32, 34 protrude from the walls of the housing 28. By axial stop is meant here a stop limiting the movement in the direction of the common axis A of the rings 20, 22, 24. The two axial stops 32, 34 are here in look at each other. In other words, the two axial stops 32, 34 are substantially aligned in a direction parallel to the common axis A of the two rings 20, 22, 24. In the example illustrated, the elastomeric material of one of the layers 27i, 272 is in contact between one of the axial stops 32, 34 and one of the flat surfaces 26i, 262 of the finger 26. We limit thus the possible movement of the finger 26 in the housing 28, in the axial direction A. To further limit this axial movement, the elastomeric material of the layers 27i, 272 present between the axial stops 32, 34 and the flat surfaces 26i, 262 is here compressed. For example, the elastomeric material of the layers 27i, 272 present between the axial stops 32, 34 and the flat surfaces 26i, 262 has a compression ratio, axial, greater than or equal to 5% and / or less than or equal to 25%, preferably substantially equal to 15%. We define the axial compression ratio ZL, Z2 as the ratio between:
- la différence entre l’épaisseur ei°, e2° de la couche d’élastomère sur les surfaces planes 26i, 262 des doigts 26 avant la mise en place des doigts 26 entre les butées axiales 32, 34, d’une part, et l’épaisseur ei, e2 de la couche d’élastomère 27i, 212 sur les surfaces planes 26i, 262 des doigts 26 après la mise en place des doigts 26 entre les butées axiale 32, 34, d’autre part, et - the difference between the thickness ei °, e2 ° of the elastomer layer on the flat surfaces 26i, 262 of the fingers 26 before the installation of the fingers 26 between the axial stops 32, 34, on the one hand, and the thickness ei, e2 of the elastomer layer 27i, 212 on the flat surfaces 26i, 262 of the fingers 26 after the placement of the fingers 26 between the axial stops 32, 34, on the other hand, and
- l’épaisseur ei°, e2° de la couche d’élastomère sur les surfaces planes 261, 262 des doigts 26 avant la mise en place des doigts 26 entre les butées axiales 32, 34 : - the thickness ei °, e2 ° of the elastomer layer on the flat surfaces 261, 262 of the fingers 26 before placing the fingers 26 between the axial stops 32, 34:
Figure imgf000010_0001
Figure imgf000010_0001
[0033] Ainsi, la déformation possible du matériau élastomère permet de limiter la transmission des vibrations depuis l’une des deux bagues 20, 22 vers l’autre des deux bagues 20, 22. Concomitamment, la compression du matériau élastomère des couches 27i, 212 limite cependant le débattement des doigts 26 et, par la même, les mouvements relatifs possibles des deux bagues 20, 22. Thus, the possible deformation of the elastomeric material makes it possible to limit the transmission of vibrations from one of the two rings 20, 22 to the other of the two rings 20, 22. Concomitantly, the compression of the elastomeric material of the layers 27i, 212, however, limits the movement of the fingers 26 and, by the same token, the possible relative movements of the two rings 20, 22.
[0034] Pour ce faire également, le matériau élastomère formant les couches 27i, 272, peut être choisi en fonction de sa dureté. Ce matériau élastomère peut notamment avoir une dureté supérieure ou égale à 40 shore et/ou inférieure ou égale à 60 shore. [0035] Les épaisseurs ei, ez, d’une part, et/ou ei°, ez°, d’autre part, sont avantageusement sensiblement égales. On permet ainsi un centrage des doigts 26 entre les deux butées axiales 32, 34. To do this also, the elastomeric material forming the layers 27i, 272, can be chosen according to its hardness. This elastomeric material may in particular have a hardness greater than or equal to 40 shore and / or less than or equal to 60 shore. The thicknesses ei, ez, on the one hand, and / or ei °, ez °, on the other hand, are advantageously substantially equal. This allows centering of the fingers 26 between the two axial stops 32, 34.
[0036] Le matériau élastomère des couches 27i, 21z peut avantageusement être surmoulé sur les surfaces 26i, 262 des doigts 26, en particulier concomitamment au surmoulage de la bague de découplage 24. Le matériau élastomère est ainsi maintenu en position par rapport aux doigts 26. Le montage de la bague intérieure 20 par rapport à la bague extérieure 22 s’en trouve également facilité. The elastomeric material of the layers 27i, 21z can advantageously be overmolded on the surfaces 26i, 262 of the fingers 26, in particular concurrently with the overmolding of the decoupling ring 24. The elastomeric material is thus maintained in position relative to the fingers 26 The mounting of the inner ring 20 relative to the outer ring 22 is also facilitated.
[0037] La première butée axiale est ici formée par un ergot 32 d’un pion 36. Le pion 36 comporte également une base 38, sensiblement plane, depuis laquelle l’ergot 32 s’étend selon un axe B destiné à être parallèle à l’axe A commun des bagues 20, 22, 24, quand le pion 36 est fixé sur la bague extérieure 22. Pour assurer cette fixation, la base 38 présente ici deux ouvertures 40 destinées à être montées serrées sur deux reliefs cylindriques complémentaires, formés sur la bague extérieure 22. En outre, deux encoches 42 sont prévues aux extrémités longitudinales de la base 38. Une des deux encoches 42 reçoit une nervure complémentaire formée par la bague extérieure 22, pour guider le montage du pion 36 sur la bague extérieure 22. L’ergot 32 est monté serré dans un trou dans la bague extérieure 22, de manière à faire saillie dans un logement 28 et ainsi former la première butée axiale 32. Plus précisément, l’ergot 32 s’étend selon la direction de l’axe A commun des bagues 20, 22, 24, depuis l’une des parois du logement 28, vers le doigt 26 qui y est reçu. The first axial stop is here formed by a pin 32 of a pin 36. The pin 36 also comprises a base 38, substantially planar, from which the pin 32 extends along an axis B intended to be parallel to the common axis A of the rings 20, 22, 24, when the pin 36 is fixed on the outer ring 22. To ensure this fixing, the base 38 has here two openings 40 intended to be mounted tight on two complementary cylindrical reliefs, formed on the outer ring 22. In addition, two notches 42 are provided at the longitudinal ends of the base 38. One of the two notches 42 receives a complementary rib formed by the outer ring 22, to guide the mounting of the pin 36 on the outer ring 22 The lug 32 is mounted tight in a hole in the outer ring 22, so as to protrude into a housing 28 and thus form the first axial stop 32. More precisely, the lug 32 extends in the direction of l 'A common axis of the rings 20, 22, 24, since s one of the walls of the housing 28, towards the finger 26 which is received therein.
[0038] La deuxième butée axiale 34 est ici formée par le déflecteur 18 qui comporte des reliefs cylindriques saillants, traversant une ouverture dans la bague extérieure 22, de manière à faire saillie dans les logements 28, depuis une paroi opposée à la première butée axiale 32. Les cylindres saillant s’étendent également selon une direction parallèle à la direction de l’axe A commun aux bagues 20, 22, 24. The second axial stop 34 is here formed by the deflector 18 which comprises projecting cylindrical reliefs, passing through an opening in the outer ring 22, so as to protrude into the housings 28, from a wall opposite the first axial stop 32. The projecting cylinders also extend in a direction parallel to the direction of the axis A common to the rings 20, 22, 24.
[0039] La présente divulgation ne se limite pas à l’exemple décrit ci-avant, mais elle englobe toutes les variantes et combinaisons que pourra envisager l’homme de l’art dans le cadre de la protection recherchée. [0040] Selon une première variante de réalisation, une seule butée axiale est saillante dans les logements 28. Dans ce cas, le doigt reçu dans le logement peut être serré entre la butée axiale saillante, d’une part, et la paroi du logement opposée à la butée axiale saillante, d’autre part. The present disclosure is not limited to the example described above, but it encompasses all the variants and combinations that a person skilled in the art may envisage in the context of the desired protection. According to a first variant embodiment, a single axial stop projecting in the housing 28. In this case, the finger received in the housing can be clamped between the projecting axial stop, on the one hand, and the wall of the housing opposite to the projecting axial stop, on the other hand.
[0041] Par ailleurs, les butées axiales peuvent être réalisées par d’autres moyens que ceux décrits dans l’exemple ci-avant. Par exemple l’une et/ou l’autre des butées axiales peut/peuvent être réalisée/s par un bossage de la paroi du logement, s’étendant vers le doigt reçu dans le logement. [0041] Furthermore, the axial stops can be produced by means other than those described in the example above. For example, one and / or the other of the axial stops may / may be produced by a boss in the wall of the housing, extending towards the finger received in the housing.
[0042] Par ailleurs, dans l’exemple illustré, du matériau élastomère est présent sur les faces des doigts en regard des butées axiales. Alternativement ou au surplus, du matériau élastomère peut être prévu sur les butées axiales, qu’elles soient saillantes ou non. De préférence cependant, on évite un contact entre deux couches de matériau élastomère. Ainsi, seule l’une de deux surfaces en contact est de préférence recouverte de matériau élastomère. [0042] Furthermore, in the example illustrated, elastomeric material is present on the faces of the fingers facing the axial stops. Alternatively or in addition, elastomeric material can be provided on the axial stops, whether they are protruding or not. Preferably, however, contact between two layers of elastomeric material is avoided. Thus, only one of the two contacting surfaces is preferably covered with elastomeric material.
[0043] Également, dans l’exemple illustré, la bague intérieure forme des doigts reçus dans des logements formés dans la bague extérieure. La configuration inverse est cependant envisageable, selon laquelle la bague extérieure présente des doigts orientés radialement vers la bague intérieure et reçus dans des logements formés dans cette bague intérieure. [0043] Also, in the example illustrated, the inner ring forms fingers received in housings formed in the outer ring. The reverse configuration can however be envisaged, according to which the outer ring has fingers oriented radially towards the inner ring and received in housings formed in this inner ring.

Claims

Revendications Claims
1. Support de moteur (16), notamment pour groupe moto-ventilateur d’une installation de ventilation pour véhicule, comprenant : 1. Motor support (16), in particular for the motor-fan unit of a vehicle ventilation system, comprising:
deux bagues coaxiales (20 ; 22), dont une bague intérieure (20) apte à recevoir un ou plusieurs éléments du moteur et une bague extérieure (22) apte à être fixée sur un boîtier formant élément de structure, two coaxial rings (20; 22), including an inner ring (20) capable of receiving one or more elements of the motor and an outer ring (22) capable of being fixed to a housing forming a structural element,
un élément de découplage (24) entre les deux bagues coaxiales (20 ; 22), et a decoupling element (24) between the two coaxial rings (20; 22), and
un élément (26, 28) de limitation du basculement de la bague intérieure (20) par rapport à la bague extérieure (22), l’élément de limitation comprenant un doigt (26) qui s'étend en saillie d'une première (20) des deux bagues (20 ; 22) et est logé dans un logement (28) formé dans la deuxième (22) des deux bagues (20 ; 22), deux butées axiales (32 ; 34) étant formées dans le logement (28) pour limiter le déplacement du doigt (26) dans le logement (28) dans la direction de l’axe commun (A) des deux bagues (20 ; 22), au moins l’une des butées axiales (32 ; 34) étant saillante dans le logement (28), du matériau élastomère (27i, 212) étant disposé entre le doigt (26) et chacune des deux butées axiales (32 ; 34) et étant en contact avec le doigt (26) et chacune des deux butées axiales (32 ; 34). an element (26, 28) for limiting the tilting of the inner ring (20) relative to the outer ring (22), the limiting element comprising a finger (26) which protrudes from a first ( 20) of the two rings (20; 22) and is housed in a housing (28) formed in the second (22) of the two rings (20; 22), two axial stops (32; 34) being formed in the housing (28 ) to limit the movement of the finger (26) in the housing (28) in the direction of the common axis (A) of the two rings (20; 22), at least one of the axial stops (32; 34) being protruding into the housing (28), of the elastomeric material (27i, 212) being disposed between the finger (26) and each of the two axial stops (32; 34) and being in contact with the finger (26) and each of the two stops axial (32; 34).
2. Support de moteur selon la revendication 1 , dans lequel le matériau élastomère est comprimé entre le doigt (26) et chacune des deux butées axiales (32 ; 34), le matériau élastomère ayant de préférence un taux de compression supérieur ou égal à 5% et/ou inférieur ou égal à 25%, de préférence encore sensiblement égal à 15%. 2. Motor support according to claim 1, wherein the elastomeric material is compressed between the finger (26) and each of the two axial stops (32; 34), the elastomeric material preferably having a compression ratio greater than or equal to 5. % and / or less than or equal to 25%, more preferably still substantially equal to 15%.
3. Support de moteur selon la revendication 1 ou 2, dans lequel le matériau élastomère a une dureté supérieure ou égale à 40 shore et/ou inférieure ou égale à 60 shore. 3. Motor support according to claim 1 or 2, wherein the elastomeric material has a hardness greater than or equal to 40 shore and / or less than or equal to 60 shore.
4. Support de moteur selon l’une des revendications 1 à 3, dans lequel la au moins une butée axiale saillante (32 ; 34) s'étend selon la direction de l’axe (A) commun des bagues intérieure et extérieure (20 ; 22). 4. Motor support according to one of claims 1 to 3, wherein the at least one projecting axial stop (32; 34) extends in the direction of the axis (A) common to the inner and outer rings (20 ; 22).
5. Support de moteur selon l'une quelconque des revendications précédentes, comprenant deux butées axiales (32 ; 34) saillantes dans le logement (28), disposées de part et d’autre du doigt (26), les deux butées axiales (32 ; 34) saillantes étant en regard l’une de l’autre. 5. Motor support according to any one of the preceding claims, comprising two axial stops (32; 34) projecting in the housing (28), arranged on either side of the finger (26), the two axial stops (32 ; 34) protruding facing each other.
6. Support de moteur selon l’une quelconque des revendications précédentes, comprenant une même épaisseur d’élastomère entre le doigt (26) et chacune des deux butées axiales (32 ; 34). 6. Motor support according to any one of the preceding claims, comprising the same thickness of elastomer between the finger (26) and each of the two axial stops (32; 34).
7. Support de moteur selon l’une quelconque des revendications précédentes, dans lequel les deux faces (261 , 262) opposées du doigt (26), faisant face aux butées axiales (32 ; 34) sont planes. 7. An engine mount according to any preceding claim, wherein the two opposite faces (261, 262) of the finger (26), facing the axial stops (32; 34) are planar.
8. Support de moteur selon l’une quelconque des revendications précédentes, dans lequel l’élément de découplage comporte une bague (24) en matériau élastomère, surmoulée entre la bague intérieure (20) et la bague extérieure (22). 8. Motor support according to any one of the preceding claims, wherein the decoupling element comprises a ring (24) of elastomeric material, molded between the inner ring (20) and the outer ring (22).
9. Support de moteur selon la revendication 8, dans lequel le matériau élastomère en contact entre le doigt (26) et chacune des deux butées axiales (32 ; 34), est venu de matière avec la bague (24) en matériau élastomère. 9. Motor support according to claim 8, wherein the elastomeric material in contact between the finger (26) and each of the two axial stops (32; 34), is integral with the ring (24) of elastomeric material.
10. Dispositif de ventilateur (10), en particulier pour installation de ventilation pour véhicule, comportant un moteur électrique, en particulier un moteur électrique sans balai, une roue de ventilateur (12), entraînée en rotation par le moteur électrique, et un support de moteur (16) selon l’une quelconque des revendications précédentes, le moteur, en particulier le stator du moteur, étant fixé sur la bague intérieure (20) du support de moteur (16). 10. Fan device (10), in particular for vehicle ventilation installation, comprising an electric motor, in particular a brushless electric motor, a fan wheel (12), driven in rotation by the electric motor, and a support Motor (16) according to any one of the preceding claims, the motor, in particular the motor stator, being fixed to the inner ring (20) of the motor support (16).
PCT/FR2020/051099 2019-06-28 2020-06-24 Motor support for a motor vehicle heating, ventilation and/or air conditioning device WO2020260822A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1907096A FR3098053B1 (en) 2019-06-28 2019-06-28 Motor support and heating, ventilation and / or air conditioning system for a motor vehicle
FR1907096 2019-06-28

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WO2020260822A1 true WO2020260822A1 (en) 2020-12-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021249862A1 (en) * 2020-06-10 2021-12-16 Valeo Systemes Thermiques Motor mount and fan for mixing air in a heating, ventilating and/or air-conditioning device of a motor vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023110699A1 (en) * 2021-12-16 2023-06-22 Valeo Systemes Thermiques Motor support for a ventilation device for a vehicle ventilation and/or heating and/or air conditioning system

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE102010045899B3 (en) * 2010-09-17 2012-02-16 Ingo Schehr Fan unit with an electric axial fan
FR3047125A1 (en) * 2016-01-26 2017-07-28 Valeo Systemes Thermiques SUPPORT ASSEMBLY FOR AN ELECTRIC MOTOR, IN PARTICULAR IN A HEATING, VENTILATION AND / OR AIR CONDITIONING DEVICE FOR A MOTOR VEHICLE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045899B3 (en) * 2010-09-17 2012-02-16 Ingo Schehr Fan unit with an electric axial fan
FR3047125A1 (en) * 2016-01-26 2017-07-28 Valeo Systemes Thermiques SUPPORT ASSEMBLY FOR AN ELECTRIC MOTOR, IN PARTICULAR IN A HEATING, VENTILATION AND / OR AIR CONDITIONING DEVICE FOR A MOTOR VEHICLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021249862A1 (en) * 2020-06-10 2021-12-16 Valeo Systemes Thermiques Motor mount and fan for mixing air in a heating, ventilating and/or air-conditioning device of a motor vehicle
FR3111409A1 (en) * 2020-06-10 2021-12-17 Valeo Systemes Thermiques Motor support, fan and installation of heating, ventilation and / or air conditioning device for motor vehicle

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FR3098053B1 (en) 2021-09-03

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