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EP1065465A1 - Mounting of motor of ventilator on heat exchanger - Google Patents

Mounting of motor of ventilator on heat exchanger Download PDF

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Publication number
EP1065465A1
EP1065465A1 EP00401727A EP00401727A EP1065465A1 EP 1065465 A1 EP1065465 A1 EP 1065465A1 EP 00401727 A EP00401727 A EP 00401727A EP 00401727 A EP00401727 A EP 00401727A EP 1065465 A1 EP1065465 A1 EP 1065465A1
Authority
EP
European Patent Office
Prior art keywords
motor
support
heat exchanger
arrangement according
screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00401727A
Other languages
German (de)
French (fr)
Inventor
Alain Vadrot
Alain Battel
David Negre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
ECIA Equipements et Composants pour lIndustrie Automobile SA
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 ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical ECIA Equipements et Composants pour lIndustrie Automobile SA
Priority claimed from US09/669,905 external-priority patent/US6360815B1/en
Publication of EP1065465A1 publication Critical patent/EP1065465A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00—Details
    • F01P2070/50—Details mounting fans to heat-exchangers

Definitions

  • the present invention relates to an improved arrangement of a motor fan on a heat exchanger and a front unit for a motor vehicle provided of this arrangement.
  • the invention aims to avoid these aero-acoustic disturbances, while minimizing the weight and cost of the means used to mount a fan motor on a heat exchanger.
  • the invention relates to an arrangement of a fan motor on a heat exchanger, of the aforementioned type, characterized in that the engine is fixed on a support comprising at least one part of material overmolded on the body.
  • the invention also relates to a front unit for a motor vehicle characterized in that it comprises an arrangement as defined above.
  • FIG. 1 shows a front unit 10 of a motor vehicle provided a heat exchanger 12 and a fan 13.
  • This fan 13 comprises a motor electric drive 14 of a conventional propeller 16 provided with a bowl 18 and a series of blades 20 of which only one is shown in FIG. 2.
  • the propeller 16, which is not shown in Figure 1 for clarity, is mounted in a manner known per se on the motor shaft 14.
  • the heat exchanger comprises a body 22 provided with fins cooling 24 carried by a bundle of tubes 26 for circulation of a fluid coolant.
  • the body 22 extends between two manifolds for heat transfer fluid, lower 28 and upper 30. These boxes 28, 30 are interconnected by the tubes 26 which extend substantially vertically.
  • the fins 24 are for example flat and crossed by the tubes 26.
  • the body 22 has a generally flattened substantially parallelepiped shape defining large opposite substantially vertical parallel faces. Motor 14 is fixed to one of these two large faces of the body 22 as will be described below.
  • the motor 14 is fixed on a support 32 comprising at least one part in overmolded material on the body 22.
  • the overmolded material is plastic of the thermosetting or thermoplastic type. Overmolding is carried out by a process known, for example by injection or compression of the plastic so that the fins 24 and the tubes 26 are at least partially embedded in the material plastic.
  • the support 32 includes a first connecting part 32A with the body 22, made of elastomer, and a second part 32B of connection with the motor 14 in plastic material co-molded with the first part 32A.
  • the first part 32A of the support endowed with rubber elasticity, allows absorb the vibrations of the motor 14 to prevent their propagation in the body 22 of the heat exchanger.
  • the motor 14 is fixed to the support 32 by means of at least one screw, of preferably self-tapping, screwed into this support 32.
  • the motor 14 is fixed to the support 32 by means of three self-tapping screws 34.
  • the screws 34 are carried by three fixing lugs 36 each forming a passing seat for the corresponding screw 34.
  • These lugs 36 are integral with the outline external of a housing 38 of the engine 14 of generally cylindrical shape.
  • the second part 32B of the support is provided with three fixing fingers 40 associated with the three screws 34.
  • Each screw 34 is screwed into an axial blind hole 42 formed in the corresponding finger 40.
  • the second part 32B of the support is not endowed with rubber elasticity but is adapted to ensure a solid connection between support 32 and screws 34.
  • the overmolded material is not necessarily plastic and may be made of variant of aluminum or an aluminum-based alloy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The drive motor (14) for a cooling fan (16) adjacent to a motor vehicle engine radiator (12) comprising a body (22) with finned tubes (26) between top and bottom coolant tanks is mounted on a support (32) which has at least one part (32A) overmoulded onto the radiator body. The overmoulded part of the support is of an elastomer material, aluminium or alloy, and is co-moulded with a second part (32B) to which the motor is fastened, preferably by self-tapping screws (34) through fixing lugs (36) on the motor.

Description

La présente invention concerne un agencement perfectionné d'un moteur de ventilateur sur un échangeur de chaleur et un bloc avant pour véhicule automobile muni de cet agencement.The present invention relates to an improved arrangement of a motor fan on a heat exchanger and a front unit for a motor vehicle provided of this arrangement.

On connaít déjà dans l'état de la technique un agencement d'un moteur de ventilateur sur un échangeur de chaleur comprenant un corps muni d'ailettes de refroidissement portées par des tubes de circulation d'un fluide caloporteur, ce corps s'étendant entre deux boítes collectrices de fluide caloporteur reliées entre elles par les tubes.We already know in the prior art an arrangement of a motor fan on a heat exchanger comprising a body provided with fins cooling carried by circulation tubes of a heat transfer fluid, this body extending between two manifolds of heat transfer fluid connected together by the tubes.

Un agencement de ce type est décrit par exemple dans FR-A-2 748 559. Dans ce document, le moteur de ventilateur est fixé sur le corps de l'échangeur au moyen de bras accrochés notamment sur les bords de ce corps. Or, on constate que ces bras de fixation ont tendance à créer des perturbations aéro-acoustiques.An arrangement of this type is described for example in FR-A-2,748,559. this document, the fan motor is fixed to the body of the exchanger by means of arms hooked in particular on the edges of this body. However, we see that these arms of fixation tend to create aero-acoustic disturbances.

L'invention a pour but d'éviter ces perturbations aéro-acoustiques, tout en minimisant le poids et le coût des moyens utilisés pour monter un moteur de ventilateur sur un échangeur de chaleur.The invention aims to avoid these aero-acoustic disturbances, while minimizing the weight and cost of the means used to mount a fan motor on a heat exchanger.

A cet effet, l'invention a pour objet un agencement d'un moteur de ventilateur sur un échangeur de chaleur, du type précité, caractérisé en ce que le moteur est fixé sur un support comprenant au moins une partie en matière surmoulée sur le corps.To this end, the invention relates to an arrangement of a fan motor on a heat exchanger, of the aforementioned type, characterized in that the engine is fixed on a support comprising at least one part of material overmolded on the body.

Suivant d'autres caractéristiques de cet agencement :

  • le support comprend une première partie de liaison avec le corps, en élastomère, et une seconde partie de liaison avec le moteur en matière plastique co-moulée avec la première partie ;
  • la matière surmoulée est du plastique ;
  • le moteur est fixé sur le support au moyen d'au moins une vis, de préférence autotaraudeuse, vissée dans ce support ;
  • le moteur comporte au moins une patte de fixation formant un siège passant pour lavis ;
  • le support est muni d'au moins un doigt de fixation du moteur, la vis étant vissée dans un trou axial ménagé dans ce doigt.
According to other characteristics of this arrangement:
  • the support comprises a first connecting part with the body, made of elastomer, and a second connecting part with the motor made of plastic material co-molded with the first part;
  • the overmolded material is plastic;
  • the motor is fixed to the support by means of at least one screw, preferably self-tapping, screwed into this support;
  • the motor comprises at least one fixing lug forming a passing seat for a wash;
  • the support is provided with at least one engine fixing finger, the screw being screwed into an axial hole formed in this finger.

L'invention a également pour objet un bloc avant pour véhicule automobile caractérisé en ce qu'il comprend un agencement tel que défini ci-dessus. The invention also relates to a front unit for a motor vehicle characterized in that it comprises an arrangement as defined above.

L'invention sera mieux comprise à la lecture de la description qui va suivre donnée uniquement à titre d'exemple et faite en se référant aux dessins dans lesquels :

  • la figure 1 est une vue en perspective d'un échangeur de chaleur sur lequel est agencé, selon l'invention, un moteur de ventilateur ;
  • la figure 2 est une vue en coupe de l'échangeur de chaleur, suivant le plan 2-2 de la figure 1, montrant d'une façon plus détaillée le moteur de ventilateur fixé sur le corps de l'échangeur de chaleur.
The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the drawings in which:
  • Figure 1 is a perspective view of a heat exchanger on which is arranged, according to the invention, a fan motor;
  • Figure 2 is a sectional view of the heat exchanger, according to plane 2-2 of Figure 1, showing in more detail the fan motor fixed to the body of the heat exchanger.

On a représenté sur la figure 1 un bloc avant 10 de véhicule automobile muni d'un échangeur de chaleur 12 et d'un ventilateur 13. Ce ventilateur 13 comporte un moteur électrique 14 d'entraínement d'une hélice classique 16 munie d'un bol 18 et d'une série de pales 20 dont une seule est représentée sur la figure 2. L'hélice 16, qui n'est pas représentée sur la figure 1 pour des raisons de clarté, est montée de façon connue en soi sur l'arbre du moteur 14.FIG. 1 shows a front unit 10 of a motor vehicle provided a heat exchanger 12 and a fan 13. This fan 13 comprises a motor electric drive 14 of a conventional propeller 16 provided with a bowl 18 and a series of blades 20 of which only one is shown in FIG. 2. The propeller 16, which is not shown in Figure 1 for clarity, is mounted in a manner known per se on the motor shaft 14.

L'échangeur de chaleur comporte un corps 22 muni d'ailettes de refroidissement 24 portées par un faisceau de tubes 26 de circulation d'un fluide caloporteur.The heat exchanger comprises a body 22 provided with fins cooling 24 carried by a bundle of tubes 26 for circulation of a fluid coolant.

Le corps 22 s'étend entre deux boítes collectrices de fluide caloporteur, inférieure 28 et supérieure 30. Ces boítes 28, 30 sont reliées entre elles par les tubes 26 qui s'étendent sensiblement verticalement.The body 22 extends between two manifolds for heat transfer fluid, lower 28 and upper 30. These boxes 28, 30 are interconnected by the tubes 26 which extend substantially vertically.

Les ailettes 24 sont par exemple planes et traversées par les tubes 26.The fins 24 are for example flat and crossed by the tubes 26.

Le corps 22 a une forme générale sensiblement parallélépipédique aplatie définissant de grandes faces parallèles opposées sensiblement verticales. Le moteur 14 est fixé sur l'une de ces deux grandes faces du corps 22 comme cela sera décrit ci-dessous.The body 22 has a generally flattened substantially parallelepiped shape defining large opposite substantially vertical parallel faces. Motor 14 is fixed to one of these two large faces of the body 22 as will be described below.

Le moteur 14 est fixé sur un support 32 comportant au moins une partie en matière surmoulée sur le corps 22. De préférence, la matière surmoulée est du plastique du type thermodurcissable ou thermoplastique. Le surmoulage est réalisé par un procédé connu, par exemple par injection ou compression de la matière plastique de manière que les ailettes 24 et les tubes 26 soient au moins partiellement noyés dans la matière plastique.The motor 14 is fixed on a support 32 comprising at least one part in overmolded material on the body 22. Preferably, the overmolded material is plastic of the thermosetting or thermoplastic type. Overmolding is carried out by a process known, for example by injection or compression of the plastic so that the fins 24 and the tubes 26 are at least partially embedded in the material plastic.

De préférence, le support 32 comporte une première partie 32A de liaison avec le corps 22, en élastomère, et une seconde partie 32B de liaison avec le moteur 14 en matière plastique co-moulée avec la première partie 32A. Preferably, the support 32 includes a first connecting part 32A with the body 22, made of elastomer, and a second part 32B of connection with the motor 14 in plastic material co-molded with the first part 32A.

La première partie 32A du support, douée d'élasticité caoutchoutique, permet d'absorber les vibrations du moteur 14 pour éviter leur propagation dans le corps 22 de l'échangeur de chaleur.The first part 32A of the support, endowed with rubber elasticity, allows absorb the vibrations of the motor 14 to prevent their propagation in the body 22 of the heat exchanger.

Le moteur 14 est fixé sur le support 32 au moyen d'au moins une vis, de préférence autotaraudeuse, vissée dans ce support 32. Dans l'exemple décrit, le moteur 14 est fixé sur le support 32 au moyen de trois vis autotaraudeuses 34.The motor 14 is fixed to the support 32 by means of at least one screw, of preferably self-tapping, screwed into this support 32. In the example described, the motor 14 is fixed to the support 32 by means of three self-tapping screws 34.

Les vis 34 sont portées par trois pattes de fixation 36 formant chacune un siège passant pour la vis correspondante 34. Ces pattes 36 sont solidaires du contour externe d'un boítier 38 du moteur 14 de forme générale cylindrique.The screws 34 are carried by three fixing lugs 36 each forming a passing seat for the corresponding screw 34. These lugs 36 are integral with the outline external of a housing 38 of the engine 14 of generally cylindrical shape.

La seconde partie 32B du support est muni de trois doigts de fixation 40 associés aux trois vis 34. Chaque vis 34 est vissée dans un trou borgne axial 42 ménagé dans le doigt 40 correspondant.The second part 32B of the support is provided with three fixing fingers 40 associated with the three screws 34. Each screw 34 is screwed into an axial blind hole 42 formed in the corresponding finger 40.

On notera que, à la différence de la première partie 32A, la seconde partie 32B du support n'est pas douée d'élasticité caoutchoutique mais est adaptée pour assurer une liaison solide entre le support 32 et les vis 34.Note that, unlike the first part 32A, the second part 32B of the support is not endowed with rubber elasticity but is adapted to ensure a solid connection between support 32 and screws 34.

L'invention ne se limite pas au mode de réalisation décrit précédemment. En particulier, la matière surmoulée n'est pas nécessairement du plastique et peut être en variante de l'aluminium ou un alliage à base d'aluminium.The invention is not limited to the embodiment described above. In in particular, the overmolded material is not necessarily plastic and may be made of variant of aluminum or an aluminum-based alloy.

Parmi les avantages de l'invention, on notera que celle-ci permet de fixer le moteur de ventilateur sur le corps de l'échangeur de chaleur avec des moyens de fixation simples, légers et peu coûteux, ces moyens de fixation minimisant les perturbations aéro-acoustiques.Among the advantages of the invention, it will be noted that it makes it possible to fix the fan motor on the body of the heat exchanger with fixing means simple, light and inexpensive, these fixing means minimizing aero-acoustic disturbances.

Claims (7)

Agencement d'un moteur (14) de ventilateur sur un échangeur de chaleur (12) comprenant un corps (22) muni d'ailettes de refroidissement (24) portées par des tubes (26) de circulation d'un fluide caloporteur, ce corps (22) s'étendant entre deux boítes collectrices (28, 30) de fluide caloporteur reliées entre elles par les tubes (26), caractérisé en ce que le moteur (14) est fixé sur un support (32) comprenant au moins une partie (32A) en matière surmoulée sur le corps (22).Arrangement of a fan motor (14) on a heat exchanger (12) comprising a body (22) provided with cooling fins (24) carried by tubes (26) for circulation of a heat transfer fluid, this body (22) extending between two manifolds (28, 30) of heat transfer fluid connected together by the tubes (26), characterized in that the motor (14) is fixed on a support (32) comprising at least one part (32A) in molded material on the body (22). Agencement selon la revendication 1, caractérisé en ce que le support (32) comprend une première partie (32A) de liaison avec le corps (22), en élastomère, et une seconde partie (32B) de liaison avec le moteur (14) en matière plastique co-moulée avec la première partie (32A).Arrangement according to claim 1, characterized in that the support (32) comprises a first part (32A) connecting with the body (22), made of elastomer, and a second part (32B) of connection with the motor (14) in plastic material co-molded with the first part (32A). Agencement selon la revendication 1 ou 2, caractérisé en ce que la matière surmoulée est du plastique.Arrangement according to claim 1 or 2, characterized in that the material overmolded is plastic. Agencement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le moteur (14) est fixé sur le support (32) au moyen d'au moins une vis (34), de préférence autotaraudeuse, vissée dans ce support.Arrangement according to any one of claims 1 to 3, characterized in that the motor (14) is fixed to the support (32) by means of at least one screw (34), preferably self-tapping, screwed into this support. Agencement selon la revendication 4, caractérisé en ce que le moteur (14) comporte au moins une patte de fixation (36) formant un siège passant pour la vis (34).Arrangement according to claim 4, characterized in that the motor (14) comprises at least one fixing lug (36) forming a passing seat for the screw (34). Agencement selon la revendication 4 ou 5, caractérisé en ce que le support (32) est muni d'au moins un doigt (40) de fixation du moteur (14), la vis étant vissée dans un trou axial (42) ménagé dans ce doigt (40).Arrangement according to claim 4 or 5, characterized in that the support (32) is provided with at least one finger (40) for fixing the motor (14), the screw being screwed into an axial hole (42) formed in this finger (40). Bloc avant pour véhicule automobile, caractérisé en ce qu'il comprend un agencement selon l'une quelconque des revendications précédentes.Front unit for a motor vehicle, characterized in that it comprises a arrangement according to any one of the preceding claims.
EP00401727A 1999-06-29 2000-06-16 Mounting of motor of ventilator on heat exchanger Withdrawn EP1065465A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9908328A FR2795812B1 (en) 1999-06-29 1999-06-29 IMPROVED ARRANGEMENT OF A FAN MOTOR ON A HEAT EXCHANGER AND FRONT BLOCK FOR A MOTOR VEHICLE PROVIDED WITH THIS ARRANGEMENT
FR9908328 1999-06-29
US09/669,905 US6360815B1 (en) 1999-06-29 2000-09-27 Arrangement for mounting a fan motor on a heat exchanger and automobile vehicle front assembly provided with that arrangement

Publications (1)

Publication Number Publication Date
EP1065465A1 true EP1065465A1 (en) 2001-01-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00401727A Withdrawn EP1065465A1 (en) 1999-06-29 2000-06-16 Mounting of motor of ventilator on heat exchanger

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EP (1) EP1065465A1 (en)
FR (1) FR2795812B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834053B1 (en) 2001-12-21 2004-04-02 Faurecia Ind METHOD FOR PRODUCING AN ASSEMBLY FOR A MOTOR VEHICLE COMPRISING A HEAT EXCHANGER AND A SUPPORT MOLDED THEREON
DE102007032717A1 (en) * 2007-07-13 2009-01-15 Daimler Ag Heat exchanger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348079A (en) * 1992-10-15 1994-09-20 Sanden Corporation Heat exchanger and method for fixing a bracket thereto
FR2730008A1 (en) * 1995-01-30 1996-08-02 Valeo Thermique Moteur Sa Mounting of engine electric fan on radiator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748559B1 (en) 1996-05-09 1998-06-26 Valeo Thermique Moteur Sa DEVICE FOR FIXING A MOTOR-FAN GROUP ON A HEAT EXCHANGER, ESPECIALLY A MOTOR VEHICLE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348079A (en) * 1992-10-15 1994-09-20 Sanden Corporation Heat exchanger and method for fixing a bracket thereto
FR2730008A1 (en) * 1995-01-30 1996-08-02 Valeo Thermique Moteur Sa Mounting of engine electric fan on radiator

Also Published As

Publication number Publication date
FR2795812B1 (en) 2001-09-21
FR2795812A1 (en) 2001-01-05

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