EP2098733B1 - Ventilateur électrique motorisé - Google Patents

Ventilateur électrique motorisé Download PDF

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Publication number
EP2098733B1
EP2098733B1 EP09154072.4A EP09154072A EP2098733B1 EP 2098733 B1 EP2098733 B1 EP 2098733B1 EP 09154072 A EP09154072 A EP 09154072A EP 2098733 B1 EP2098733 B1 EP 2098733B1
Authority
EP
European Patent Office
Prior art keywords
main cover
terminals
cover
electrical fan
electric motor
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.)
Ceased
Application number
EP09154072.4A
Other languages
German (de)
English (en)
Other versions
EP2098733A2 (fr
EP2098733A3 (fr
Inventor
Marco Bussa
Marco Mastrototaro
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.)
Johnson Electric Asti SRL
Original Assignee
Johnson Electric Asti 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 Johnson Electric Asti SRL filed Critical Johnson Electric Asti SRL
Publication of EP2098733A2 publication Critical patent/EP2098733A2/fr
Publication of EP2098733A3 publication Critical patent/EP2098733A3/fr
Application granted granted Critical
Publication of EP2098733B1 publication Critical patent/EP2098733B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D29/66—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
    • 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
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/064—Details of the rotor
    • 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
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0646—Details of the stator
    • 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
    • F04D25/068—Mechanical details of the pump control unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings

Definitions

  • the present invention relates to a motorized electrical fan, of the type defined in the preamble of claim 1.
  • An electrical fan of this kind is disclosed in WO 2008/019038 A .
  • One object of the present invention is to propose an improved motorized electrical fan of the type initially mentioned.
  • the at least one support card or board for the power supply and control circuit means, together with the associated heat-dissipation means, is fixed directly to the support housing. In this way their weight is not added to that of the motor or to that of the source of the vibrations, but is instead added to the weight of the operationally stationery structure of the fan.
  • the support housing of the fan comprises a hollow body defining internally the working chamber, and a cover which is fixed to this body, and the support card or board for the power supply and control circuit means is fixed to this cover.
  • the motorized fan 1 comprises a rigid support housing which, in the embodiment shown, comprises a hollow body 2 which is, for example, made of moulded plastic and to the top of which a cover 3, which is also conveniently made of moulded plastic, is fixed.
  • Fixing of the cover 3 to the body 2 is performed for example using screw means 4 ( Figures 1 and 2 ).
  • the body 2 is open at the top and defines internally a chamber 5 (see also Figure 3 ) communicating with a tangential outlet duct 6 formed integrally with this body.
  • the body 2 forms substantially a tangential outlet spiral or volute of a fan.
  • the chamber 5 houses an electric motor denoted overall by 7 in Figure 2 .
  • This motor is, for example, a direct-current brushless motor and has an operationally stationary stator part 8.
  • the stator part 8 of the electric motor 7 has a plurality of radial-arm assemblies 9 which extend in a practically radial direction outwards.
  • each assembly is interconnected by a connecting element 10 ( Figure 4 , right-hand side) having a progression in the form of a circle arc.
  • Respective sheaths 11 of a vibration-damping material, such as elastomer material ( Figures 2 to 4 ), for example in the form of essentially cylindrical sleeves, are mounted on these connecting elements 10.
  • the electric motor is positioned inside the container 2, with the ends 10 of the radial arms and the associated damping elements 11 which rest on a channel 12 provided in the top edge of the body 2.
  • the cover 3, complete with the associated devices which will be described below, is then fixed to the body 2 so that the connecting elements 10 and the associated vibration-damping elements 11 are firmly gripped between this cover 3 and said body 2.
  • the electric motor 7 comprises a rotor to which an operating device extending inside the bottom of the working chamber 5 is connected.
  • an operating device is, for example, a vaned fan impeller.
  • the body 2 of the support housing of the motorized fan 1 has at the bottom an axial intake opening 13 which is essentially concentric with the axis of rotation of the motor 7.
  • activation of the electric motor 7 causes the intake of an airflow into the chamber 5 through the opening 13 and the conveying of an airflow inside the tangential outlet duct 6 integrally formed in the body 2.
  • the stator 8 of the electric motor 7 has a plurality of electrical connection terminals 14 projecting upwards in the direction of the cover 3. These terminals are connected to the windings or phases of the motor 7.
  • the cover 3 is formed by an element made of moulded plastic and having an opening 15 in its central portion.
  • FIG. 5 and 6 16 denotes a printed circuit board or card which houses a plurality of electrical/electronic components which form power supply and control circuits of the electric motor 7.
  • FIGS 5 and 6 show only some components of these circuits, such as electrolytic capacitors 17 and electronic solid-state switches (MOSFET transistors) 18.
  • the board or card 16 also has a central opening, denoted by 19, with a shape essentially corresponding to that of the opening 15 in the cover 3.
  • the bottom side of the board or card 16 has, fixed thereto, a heat-dissipation element 20 made of metallic material, with the arrangement, in between, of a thin sheet 21 of material which is electrically conductive, but has at least a reasonable thermal conductivity.
  • the board or card 16 and the associated dissipator 20 are fixed to the bottom side of the cover 3 by means of a plurality of screws denoted by 22 in Figures 5 and 6 .
  • the bottom side of the cover 3 also has, fixed thereto, a covering element 23 which is, for example, made of plastic and covers the bottom side of the card or board 16.
  • This covering element 23 has an opening 24, through which the heat dissipator 20 extends, and a further central opening 25 which has a shape essentially corresponding to that of the opening 19 of the card or board 16 and to the opening 15 of the cover 3.
  • top cover piece 26 denotes a small top cover piece which is, for example, made of moulded plastic and closes at the top the opening 15 of the main cover 3.
  • the top cover piece 26 and the main cover 3 may be joined together for example by means of snap-engagement.
  • the main cover 3 has, integrally formed therein, a multi-pole connector 27 including a plurality of electrical terminals 28 ( Figure 2 ) for example in the form of flat pins connected, inside the cover 3, to the circuits mounted on the card 16.
  • the terminals 14 of the phases of the electric motor 7 are each connected in order to a corresponding terminal 29 incorporated in the cover 3 during moulding thereof ( Figure 7 ), for example by means of flexible electrically conductive braids. These braids may be provided at one end with a connector, designed to be connected to a respective phase terminal 14, and at the other end may be provided with a similar terminal designed to be connected to a terminal 29, or they may be soldered directly to this terminal 29.
  • the connectors connecting together the phase terminals 14 and the terminals 29 of the main cover are confined within the region situated between the main cover 3 and the associated top cover piece 26 which not only covers and closes the opening 15 but also extends so as to cover and close also the portion of the main cover 3 from which the terminals 29 protrude.
  • FIGS 9 to 12 show a variation of embodiment of the main cover 3.
  • parts and elements already described have again been assigned the same reference numbers.
  • the main cover 3 incorporates, during moulding thereof, three terminals 129 essentially in the form of a turret, one of which can be seen in detail in Figure 10 .
  • Each of these terminals has a top end 129a, with an opening 129b for engaging a screw or the like, and a bottom end 129c from which four stems 129d protrude downwards, said stems being intended to be soldered to corresponding conductors mounted on the circuit card or board 16.
  • connection between the phase terminals 14 of the windings of the electric motor 7 and the terminals 129 of the main cover 3, and therefore the power supply and control circuits mounted on the card or board 16, may be performed, using flexible connecting conductors such as that shown by way of example and denoted by 30 in Figure 12 .
  • This conductor comprises a conductive braid 31 which has fixed, at one end thereof, a terminal 32 in the form of an eyelet intended to be fitted onto the top portion 129a of a corresponding terminal 129 and to be fixed to the latter by means of a screw and has fixed, at the other end, a terminal 33, for example of the so-called "fast-on" type, which can be connected to a corresponding phase terminal 14 of the electric motor 7.
  • the circuit card or board, with the power supply and control circuit components, as well as the associated heat dissipator, is fixed to the operationally stationary structure of the motorized electrical apparatus and not to the electric motor as was the case in the apparatus according to the prior art. As a result, it is possible to achieve a substantial reduction in the vibrations.
  • a further advantage of the solution according to the invention consists in the fact that the main cover 3 which helps form the support housing of the apparatus ensures at the same time effective protection of the circuits mounted on the card or board 16, without the need for specific measures, such as resin-coating of said circuits, the use of seals, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Frames (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (5)

  1. Ventilateur électrique motorisé (1), comprenant
    un logement de support rigide (2, 3) qui définit à l'intérieur une chambre de travail (5),
    un moteur électrique (7), en particulier un moteur sans balais (7), agencé à l'intérieur du logement (2, 3) et relié à ce dernier par des moyens amortisseurs de vibrations (11), pour actionner un dispositif opérationnel qui s'étend à l'intérieur de la chambre de travail (5), et
    des moyens de circuit d'alimentation et de commande (17, 18) associés et reliés au moteur (7) et montés, conjointement à des moyens de dissipation de chaleur (20) associés, sur au moins une carte ou plaque de support (16) qui est fixée au logement de support (2, 3) ;
    dans lequel le logement de support comprend un corps creux (2), définissant à l'intérieur ladite chambre de travail (5), et un couvercle principal (3) fixé audit corps (2) ; ladite au moins une carte ou plaque (16) supportant le moyen de circuit (17, 18) étant fixée audit couvercle principal (3) ;
    le ventilateur électrique étant caractérisé en ce que le moteur (7) a une pluralité de bornes (14) faisant face à une ouverture (15) dudit couvercle principal (3) et qui sont reliées à des bornes d'interconnexion électrique (29 ; 129) montées sur le couvercle principal (3) via des conducteurs de connexion flexibles (30) ; lesdites bornes d'interconnexion (29 ; 129) du couvercle principal (3) étant reliées aux moyens de circuit d'alimentation et de commande (17, 18) montés sur ladite carte ou plaque de support (16) ;
    lesdites bornes d'interconnexion (29 ; 129) dépassant du couvercle principal (3) au niveau de leur partie supérieure en vue d'une connexion aux bornes (14) du moteur électrique (7) et dépassant de ce couvercle principal (3) au niveau de leur partie inférieure en vue d'une connexion auxdits moyens de circuit d'alimentation et de commande (16-18).
  2. Ventilateur électrique motorisé selon la revendication 1, dans lequel le moteur (7) a une partie fixe en fonctionnement (8) ayant, s'étendant à partir de celle-ci, une pluralité de bras radiaux (9) dont les extrémités (10) sont maintenues entre le corps (2) et le couvercle principal (3), avec agencement entre ceux-ci de moyens amortisseurs de vibrations (11).
  3. Ventilateur électrique motorisé selon l'une quelconque des revendications précédentes, dans lequel lesdites bornes d'interconnexion (29) sont sous la forme de tiges plates.
  4. Ventilateur électrique motorisé selon la revendication 1 ou 2, dans lequel lesdites bornes d'interconnexion (129) sont sensiblement sous la forme de tourelles, dont l'extrémité supérieure est conçue pour être reliée par élément de vis ou moyens similaires à un oeillet terminal (32) d'un conducteur flexible (30) en vue d'une connexion à une borne correspondante (14) du moteur électrique (7).
  5. Ventilateur électrique motorisé selon l'une quelconque des revendications 1 à 4, dans lequel le couvercle principal (3) a, associé à celui-ci, un élément de couvercle supérieur (26) conçu pour recouvrir et fermer l'ouverture centrale susmentionnée (15) ainsi que les bornes d'interconnexion susmentionnées (29 ; 129) et les conducteurs qui relient ces dernières aux bornes (14) du moteur électrique (7).
EP09154072.4A 2008-03-04 2009-03-02 Ventilateur électrique motorisé Ceased EP2098733B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO20080159 ITTO20080159A1 (it) 2008-03-04 2008-03-04 Apparecchio elettrico motorizzato, in particolare motoventilatore elettrico.

Publications (3)

Publication Number Publication Date
EP2098733A2 EP2098733A2 (fr) 2009-09-09
EP2098733A3 EP2098733A3 (fr) 2014-07-23
EP2098733B1 true EP2098733B1 (fr) 2016-07-20

Family

ID=40293236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09154072.4A Ceased EP2098733B1 (fr) 2008-03-04 2009-03-02 Ventilateur électrique motorisé

Country Status (2)

Country Link
EP (1) EP2098733B1 (fr)
IT (1) ITTO20080159A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9121414B2 (en) 2010-11-05 2015-09-01 Gentherm Incorporated Low-profile blowers and methods
EP2653729B1 (fr) * 2012-04-20 2015-03-04 ebm-papst Mulfingen GmbH & Co. KG Ventilateur radial avec un carter auxiliaire protégé électromagnétiquement pour l'électronique de contrôle
KR102637609B1 (ko) 2014-05-09 2024-02-15 젠썸 인코포레이티드 기후 제어 시트 조립체
FR3043180B1 (fr) * 2015-10-29 2017-11-24 Valeo Systemes Thermiques Ensemble support moteur et installation de chauffage, de ventilation et/ou de climatisation pour vehicule automobile correspondante
FR3062971B1 (fr) * 2017-02-13 2021-10-01 Valeo Systemes Thermiques Ensemble de montage d'un moteur dans un dispositif de pulsion d'air pour un dispositif de chauffage, de ventilation et/ou de climatisation d'un vehicule automobile
JP2022511801A (ja) 2018-11-30 2022-02-01 ジェンサーム インコーポレイテッド 熱電調整システム及び方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312848A (en) * 1941-01-07 1943-03-02 Albert R Pezzillo Motor driven pump unit
US2419159A (en) * 1944-12-19 1947-04-15 Albert R Pezzillo Combination pump-motor-heater
FR2732524B1 (fr) * 1995-04-03 1997-05-09 Valeo Thermique Habitacle Dispositif de fixation elastique d'un moteur electrique a l'interieur d'un boitier, notamment pour vehicule automobile
JP4077983B2 (ja) * 1999-06-25 2008-04-23 カルソニックカンセイ株式会社 送風機用のブラシレスモータ
AU2006246463A1 (en) * 2005-11-30 2007-06-14 Greenwood Air Management Limited Vibration damped electric fan
US7558061B2 (en) * 2006-08-04 2009-07-07 Hewlett-Packard Development Company, L.P. Cooling fan module

Also Published As

Publication number Publication date
ITTO20080159A1 (it) 2009-09-05
EP2098733A2 (fr) 2009-09-09
EP2098733A3 (fr) 2014-07-23

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