EP1225341B1 - Ventilateur électrique - Google Patents

Ventilateur électrique Download PDF

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Publication number
EP1225341B1
EP1225341B1 EP02000923A EP02000923A EP1225341B1 EP 1225341 B1 EP1225341 B1 EP 1225341B1 EP 02000923 A EP02000923 A EP 02000923A EP 02000923 A EP02000923 A EP 02000923A EP 1225341 B1 EP1225341 B1 EP 1225341B1
Authority
EP
European Patent Office
Prior art keywords
impeller
bracket
electric fan
support
fixed
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.)
Expired - Lifetime
Application number
EP02000923A
Other languages
German (de)
English (en)
Other versions
EP1225341A3 (fr
EP1225341A2 (fr
Inventor
Marco Bussa
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.)
Gate SRL
Original Assignee
Gate SRL
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 Gate SRL filed Critical Gate SRL
Publication of EP1225341A2 publication Critical patent/EP1225341A2/fr
Publication of EP1225341A3 publication Critical patent/EP1225341A3/fr
Application granted granted Critical
Publication of EP1225341B1 publication Critical patent/EP1225341B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/066—Linear Motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5813—Cooling the control unit

Definitions

  • the present invention relates to an electric fan of the kind defined in the preamble of claim 1, usable, for example, for cooling a heat exchanger such as a radiator associated with the internal combustion engine of a motor vehicle.
  • FR-A-2 501 933 discloses a fan of this type with four support brackets which join an octagonal stator structure to a central support ring for the impeller.
  • a rotor position sensor is carried by the stator structure between two stator polepieces.
  • the object of the present invention is to provide an improved electric fan of the above-specified type, which has a particularly simple structure which can be assembled and installed in a simple and economic manner.
  • a receptacle is formed in the said second end of the bracket, which can receive control circuit means coupled to the stator part of the electric motor.
  • the bracket is made of a metal material such as aluminium, and is in heat exchange relation with at least some components of the said circuit means in order to encourage the dissipation of heat.
  • the winding of the stator part is made with stacks of laminations of electrically conductive material such as copper or its alloys, carried by a support plate which also carries connection conductors for interconnecting them.
  • an electric fan 1 comprises a support casing 2 in which there is defined an essentially circular passage 3. At the exit from this passage, that is to say essentially on the rear side of the support body 2, extends a support ring 4 interconnected with the body 2 by means of a series of spokes 5.
  • the electric fan 1 comprises an impeller generally indicated 6, having a hub 7 from which extends a ring of arcuate blades 8. The outer ends of these blades are joined to a peripheral ring 9.
  • the hub 7, the blades 8 and the peripheral ring 9 of the impeller are made in one piece of moulded plastics material.
  • the reference numeral 10 indicates a metal ring on the outer surface of which is fixed, for example by adhesive, a ring 11 of permanent magnets 12.
  • the ring 10 and the ring 11 formed by the magnets 12 are embedded in the peripheral ring 9 of the bladed impeller 6 upon moulding of this latter, in such a way that the rotor part of the motor associated with this impeller is practically integral with it.
  • a tubular metal insert 13 is conveniently embedded, upon moulding, in the hub 7 of the impeller 6, at the ends of which are defined two seats 14 and 15 of greater diameter to allow respective bearing supports 16 and 17 ( Figure 1 ) to be fitted to them.
  • the electric fan 1 further includes a support bracket generally indicated 20 in Figure 1 and 4 .
  • This support bracket 20 is conveniently made of metal such as aluminium or its alloys. It has a generally elongate form and one end 20a thereof carries a pin 21 which is inserted into the bearing support 16 and 17 of the impeller 6 to act as a fixed shaft for the rotation of this latter.
  • the end 20a of the bracket 20 further has three holes for the passage of screws which, being engaged in corresponding holes of the ring 4 of the support body 2, contribute to the fixing of the bracket 20 to this body.
  • the other end 20b of the bracket 20 forms a receptacle 23 in which is conveniently housed a circuit board (not illustrated) carrying the control circuit components associated with the motor of the electric fan.
  • a circuit board (not illustrated) carrying the control circuit components associated with the motor of the electric fan.
  • these components in the mounted condition, are in heat exchange relationship with the bracket 20 which therefore also acts as a dissipater for heat developed in operation of these components.
  • the end portion 20b of the bracket 20 has a pair of through holes 24 (only one of which is visible in Figure 4 ) for the passage of corresponding fixing screws which allow this end of the bracket 20 also to be fixed to the support body 2.
  • the stator part comprises a stack of stator laminations 28 in the form of arcuate segments, forming a plurality of teeth 29 alternating with recesses 30. Around these teeth and in the said recesses are wound conductors which form the winding 31 ( Figure 1 ) of the stator part.
  • stator laminations 28 and the terminal block 25 are conveniently fixed to the bracket 20 by means of the same pair of screws.
  • the intermediate portion of the support bracket 20 has a plurality of longitudinal slots 32 intended to allow the passage of air which in operation is blown by the impeller 20 into the passage 3 of the support body 2.
  • the intermediate portion of the support bracket 20 forms a plurality of angularly spaced deflector elements or flow straighteners 40.
  • a similar series of deflector elements or flow straighteners indicated 41 in Figure 6 extend from the support ring 4 to the outlet of the conveyor duct 3.
  • the deflectors or flow straighteners 41 form an angularly complementary assembly to that formed by the deflectors or flow straighteners 40 of the support bracket 20.
  • the bracket 20 when the bracket 20 is mounted in position on the body 2 its deflectors or flow straighteners 40 combine with the deflectors or flow straighteners 41 to form, overall, a ring of angularly equally spaced deflectors or straighteners.
  • each deflector or flow straightener 40 has in its radially innermost region an essentially straight cross section as shown in Figure 7 , which progressively curves in the direction of its radially outer portion in correspondence with which, as seen in Figure 8 , its cross section has an accentuated curvature.
  • the flow straighteners 41 of the support body 2 are in its radially innermost region and progressively curves in the direction of its radially outer portion in correspondence with which, as seen in Figure 8 , its cross section has an accentuated curvature.
  • the flow straighteners 41 of the support body 2 has in its radially innermost region an essentially straight cross section as shown in Figure 7 , which progressively curves in the direction of its radially outer portion in correspondence with which, as seen in Figure 8 , its cross section has an accentuated curvature.
  • the flow straighteners 41 of the support body 2 has in its radially innermost region and progressively curves in the direction of its radially outer portion in correspondence with which, as seen in Figure 8
  • the support bracket 20 essentially corresponds to that previously described with reference to Figures 1 and 4 .
  • the winding of the stator part of the electric motor must be made with conductors having a large cross section for the purpose of ensuring a high performance.
  • the formation of windings with conductors of large cross section is a complicated operation.
  • FIGs illustrate portions of the stator part of the motor associated with the electric fan, in which the winding 31 is made with stacks 50 of laminations 51 of electrically conductive material such as copper or its alloys, carried by a support plate 52 of electrically insulating material which carries connection conductors 53 for interconnecting them ( Figure 11 ).

Landscapes

  • 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)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Insulated Conductors (AREA)
  • Saccharide Compounds (AREA)

Claims (6)

  1. Ventilateur électrique (1) comprenant
    une turbine (6, 8) à aubes et
    un moteur d'entraînement électrique associé comportant une partie de rotor (11, 12) comprenant une pluralité d'aimants permanents (12) fixés à une bague périphérique (9) de la turbine (6), et une partie de stator (28, 31) faisant face à une portion de ladite bague (11) d'aimants (12) du rotor et qui comporte un enroulement (31) et
    une structure de support (2 ; 20) dans laquelle la turbine (6) est montée de manière à pouvoir effectuer une rotation et à laquelle ladite partie de stator du moteur est fixée ;
    ladite structure de support comprenant une plaque de fixation (20) de forme généralement allongée, à laquelle est fixée ladite partie de stator (28, 31) du moteur électrique, la plaque de fixation (20) ayant une première extrémité (20a) prévue avec un moyen de support de rotation (21) pour la turbine (6) ;
    le ventilateur électrique étant caractérisé en ce que la plaque de fixation de support (20) possède une seconde extrémité (20b) dans laquelle est formée un réceptacle (23) capable de recevoir un moyen formant circuit de commande couplé à la partie de stator (28-31) dudit moteur électrique ;
    la plaque de fixation de support (20) étant en un matériau métallique, en particulier en aluminium, et en relation d'échange thermique avec au moins certains composants dudit moyen formant circuit ;
    ladite plaque de fixation (20) ayant une portion intermédiaire avec une pluralité de fentes (32) adaptées pour permettre le passage de l'air soufflé en fonctionnement par la turbine (20) dans le passage (3) du corps de support (2).
  2. Ventilateur électrique selon la revendication 1, dans lequel les extrémités (20a, 20b) de ladite plaque de fixation de support (20) sont prévues avec des moyens (22, 24) permettant un ancrage à une structure de support (2) pour l'utilisation.
  3. Ventilateur électrique selon l'une quelconque des revendications précédentes, dans lequel la cabine (6) est en un matériau plastique moulé et les aimants (12) de la partie de rotor (11) sont fixées, par exemple, au moyen d'un adhésif, à une bague de support métallique (10), ladite bague (10) et les aimants (12) étant encastrés dans le matériau plastique de la turbine (6).
  4. Ventilateur électrique selon l'une quelconque des revendications précédentes, dans lequel ladite première extrémité (20a) de la plaque de fixation (20) possède un axe (21) fixé dans celle-ci et pouvant fonctionner de façon à faire office d'arbre fixe, dans lequel la turbine (6) possède un moyeu (7) prévu avec un moyen de support de rotation (16, 17) monté de manière à pouvoir effectuer une rotation sur ledit axe ou arbre fixe (21).
  5. Ventilateur électrique selon l'une quelconque des revendications précédentes, dans lequel la portion intermédiaire de la plaque de fixation de support (20) possède une pluralité d'éléments déflecteurs espacés de manière angulaire ou d'éléments redresseurs d'écoulement (40) formés dans celle-ci.
  6. Ventilateur électrique selon l'une quelconque des revendications précédentes, dans lequel l'enroulement (31) de la partie de stator (28, 31) est formé avec des piles (50) de strates (51) de matériau électriquement conducteur tel que du cuivre ou ses alliages, portés par une plaque de support (52) qui porte également des conducteurs de connexion (53) pour les interconnecter.
EP02000923A 2001-01-19 2002-01-16 Ventilateur électrique Expired - Lifetime EP1225341B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITTO20010038 2001-01-19
ITTO000038 2001-01-19
IT2001TO000038A ITTO20010038A1 (it) 2001-01-19 2001-01-19 Elettroventilatore.

Publications (3)

Publication Number Publication Date
EP1225341A2 EP1225341A2 (fr) 2002-07-24
EP1225341A3 EP1225341A3 (fr) 2003-01-22
EP1225341B1 true EP1225341B1 (fr) 2008-12-17

Family

ID=11458404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02000923A Expired - Lifetime EP1225341B1 (fr) 2001-01-19 2002-01-16 Ventilateur électrique

Country Status (5)

Country Link
US (1) US20020110456A1 (fr)
EP (1) EP1225341B1 (fr)
DE (1) DE60230347D1 (fr)
HK (1) HK1048351A1 (fr)
IT (1) ITTO20010038A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8282348B2 (en) * 2007-03-05 2012-10-09 Xcelaero Corporation Fan with strut-mounted electrical components
DE102008049757A1 (de) * 2008-09-30 2010-04-01 GM Global Technology Operations, Inc., Detroit Gebläse mit Luftschaufeln
DE102009045655A1 (de) * 2009-10-14 2011-04-21 Robert Bosch Gmbh Vollintegriertes Gebläsemodul
CN105443446B (zh) * 2015-12-02 2018-04-13 珠海格力电器股份有限公司 电风扇机头锁紧结构和电风扇

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501933A1 (fr) * 1981-03-13 1982-09-17 Peugeot Aciers Et Outillage Unite de ventilation, notamment pour un moteur a combustion interne
GB2285541B (en) * 1994-01-05 1997-04-16 Alex Horng Electric fans and method of assembly thereof
DE19612679C2 (de) * 1996-03-29 2003-10-30 Temic Auto Electr Motors Gmbh Kühlerventilator für Kraftfahrzeuge
FR2766302B1 (fr) * 1997-07-17 1999-09-24 Valeo Climatisation Moteur electrique, notamment de vehicule automobile, a radiateur de refroidissement a configuration d'ailettes variable
FR2766235B1 (fr) * 1997-07-17 1999-09-24 Valeo Climatisation Dispositif de fixation d'un groupe moto-ventilateur sur un element d'un vehicule automobile, notamment un echangeur de chaleur
US6024543A (en) * 1997-11-07 2000-02-15 Zero Corporation Blower wheel having interior motor cooling ribs
DE19800570B4 (de) * 1998-01-09 2004-09-02 Bayerische Motoren Werke Ag Gebläse mit einem Lüfterrad
JPH11214877A (ja) * 1998-01-22 1999-08-06 Matsushita Electric Ind Co Ltd 電子機器の冷却装置およびその冷却ファン
FR2778975B1 (fr) * 1998-05-20 2000-08-04 Valeo Thermique Moteur Sa Module d'echange de chaleur, en particulier pour vehicule automobile
US6227822B1 (en) * 1998-10-20 2001-05-08 Lakewood Engineering And Manufacturing Co. Fan with improved electric motor and mounting
KR100548036B1 (ko) * 1998-12-31 2006-05-09 한라공조주식회사 축류팬용 안내깃과 그 안내깃을 구비한 축류팬 슈라우드 조립체
AU2001286583A1 (en) * 2000-08-18 2002-03-04 Horton Inc. Circumferential arc segment motor cooling fan

Also Published As

Publication number Publication date
US20020110456A1 (en) 2002-08-15
ITTO20010038A1 (it) 2002-07-19
EP1225341A3 (fr) 2003-01-22
ITTO20010038A0 (it) 2001-01-19
DE60230347D1 (de) 2009-01-29
HK1048351A1 (zh) 2003-03-28
EP1225341A2 (fr) 2002-07-24

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