EP0780579A1 - Soufflante radiale notamment pour systèmes de chauffage et climatisation de véhicules à moteur - Google Patents

Soufflante radiale notamment pour systèmes de chauffage et climatisation de véhicules à moteur Download PDF

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Publication number
EP0780579A1
EP0780579A1 EP96119730A EP96119730A EP0780579A1 EP 0780579 A1 EP0780579 A1 EP 0780579A1 EP 96119730 A EP96119730 A EP 96119730A EP 96119730 A EP96119730 A EP 96119730A EP 0780579 A1 EP0780579 A1 EP 0780579A1
Authority
EP
European Patent Office
Prior art keywords
electric motor
fan
air
radial
fan blades
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.)
Granted
Application number
EP96119730A
Other languages
German (de)
English (en)
Other versions
EP0780579B1 (fr
Inventor
Rainer Blumenberg
Heinrich Hillrichs
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.)
Temic Automotive Electric Motors GmbH
Original Assignee
Temic Automotive Electric Motors GmbH
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 Temic Automotive Electric Motors GmbH filed Critical Temic Automotive Electric Motors GmbH
Publication of EP0780579A1 publication Critical patent/EP0780579A1/fr
Application granted granted Critical
Publication of EP0780579B1 publication Critical patent/EP0780579B1/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
    • 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
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • 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
    • F04D29/5806—Cooling the drive system

Definitions

  • the invention relates to a radial fan, in particular for heating and air conditioning systems of motor vehicles of the type specified in the preamble of claim 1.
  • the space available in a motor vehicle for the installation of a heating and ventilation device is generally very small, and if the air is to be set in motion with a centrifugal fan, in particular in order to achieve silent operation, a space-saving design is achieved if the Air enters the housing directly from the side opposite the electric motor driving the blower. Cooling the motor is therefore a difficult problem.
  • a radial blower driven by an electric motor with a radial fan is already known, in which a support disk is provided with blower blades pointing axially away from the motor on the radial outer region.
  • the support disk has openings through which the cooling air heated by the electric motor reaches the suction side of the impeller and is mixed with the conveying air and discharged into the spiral space. Since the openings in the support plate enable short-circuit currents between the pressure and suction sides and therefore tend to generate noise, this impeller is less suitable for low-noise operation.
  • the invention has for its object to improve a radial fan of the type mentioned in such a way that noise is reduced and sufficient cooling of the electric motor is achieved. This object is achieved by the invention characterized in patent claim 1.
  • the radial fan according to the invention is characterized by a low-noise operation, but adequate cooling of the electric motor is also always guaranteed. Low-frequency roaring noises are largely avoided by switching off, or at least reducing, short-circuit currents between the pressure and suction sides of the fan wheel.
  • the radial blower meets today's demands for air performance, engine cooling and low noise.
  • the figure shows a radial fan, in particular for heating and air conditioning systems of motor vehicles with a fan wheel 3 driven by an electric motor 1 and a spiral housing 5 surrounding it.
  • a support disk 11 of the fan wheel 3 via the hub 9 attached, which has a plurality of fan blades 13 evenly distributed on the outer circumference.
  • air is conveyed from a suction opening 15 in a cover plate 17 for a pot-shaped housing part 21 of the housing 5 into the spiral space 19 and from there to an outlet opening, not shown.
  • the fan wheel 3 is surrounded by the spiral-shaped housing part 21, which has a dome-like recess 23 on the side opposite the air intake opening 15, in which at least one end 24 of the electric motor 1 is accommodated.
  • the support disk 11 is provided with a recess 25 opposite the dome-like recess 23, which is cup-shaped and serves to receive the other end 27 of the electric motor 1.
  • the support disk 11 is provided with first fan blades 13 pointing axially away from the electric motor 1 on the radial outer region and with second fan blades 31 on the smooth, closed inner surface 29, through which a cooling air flow for cooling the electric motor 1 while generating local pressure differences within the air space surrounding the electric motor 1 33 is branched off essentially circulating from the main air flow into the spiral space 19.
  • These second fan blades 31 are distributed on the upper inner wheel 35 on the inner surface 29 of the support disk 11.
  • the support disk 11 is formed in one piece with the bearing hub 9 of the fan wheel 3, the bearing hub 9 connected to the drive shaft 7 of the electric motor 1 being formed with one end 37 projecting above the inner surface 29 in the bottom 39 of the support disk 11 41 formed stiffening ribs between the free end 37 of the bearing hub 9 and the inner surface 29 of the support plate 11 are arranged in the bottom 39. These third fan blades 41 support the circulation of the cooling air flow through the electric motor 1.
  • the branching of a cooling air flow to the electric motor from the main air flow in the spiral space 19 is produced in that the closed housing part 21 has at least one air supply duct 45 arranged from the spiral space 19 to the bottom 43 of the dome-like recess 23 for supplying cooling air to the electric motor 1.
  • the cooling air flow from the spiral space 19 to the floor 43 runs in the direction of the arrow 47 and then passes in the direction of the arrow 49 through the unlocked electric motor 1 to the Bottom 39 in the support plate 11, from where at least part of the heated cooling air flow is finally pressed in the direction of arrow 51 via the fan blades 31 and 41 into the spiral space 19 against the excess pressure prevailing there.
  • the cooling air conducted and heated by the electric motor 1 into the spiral space 19 is then mixed with the cooling air in the spiral space 19.
  • a circulation of cooling air flows which mix with possibly preheated fresh air, is also generated within the air space 33 due to pressure differences which are generated by the fan blades 31 and 41.
  • the temperature level of the circulating cooling air streams is stabilized by the constant circulation with partial addition of air from the main stream via the air supply duct 45 and, on the other hand, by heat being released to the walls of the dome-like recess 23.
  • the second fan blades 31 z. B triangular shapes on each of which a first leg 53 each parallel to the drive shaft 7 of the electric motor 1 and the other leg 55 are arranged perpendicular to the first leg 53 and in extension to the peripheral edge 57 of the support plate 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)
EP96119730A 1995-12-20 1996-12-10 Soufflante radiale notamment pour systèmes de chauffage et climatisation de véhicules à moteur Expired - Lifetime EP0780579B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19547674A DE19547674A1 (de) 1995-12-20 1995-12-20 Radialgebläse, insbesondere für Heizungs- und Klimaanlagen von Kraftfahrzeugen
DE19547674 1995-12-20

Publications (2)

Publication Number Publication Date
EP0780579A1 true EP0780579A1 (fr) 1997-06-25
EP0780579B1 EP0780579B1 (fr) 2002-02-06

Family

ID=7780720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96119730A Expired - Lifetime EP0780579B1 (fr) 1995-12-20 1996-12-10 Soufflante radiale notamment pour systèmes de chauffage et climatisation de véhicules à moteur

Country Status (2)

Country Link
EP (1) EP0780579B1 (fr)
DE (2) DE19547674A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6074181A (en) * 1998-07-09 2000-06-13 Ff Seeley Nominees Pty. Ltd. Shroud for fan motor cooling
FR2789447A1 (fr) * 1999-02-10 2000-08-11 Valeo Climatisation Dispositif de chauffage et/ou climatisation comprenant un pulseur centrifuge
WO2000054996A1 (fr) * 1999-03-13 2000-09-21 Dong Jin Motor Co., Ltd Configuration de guidage d'air pour le refroidissement d'un moteur du dispositif de repartition d'air d'une voiture
WO2003038281A1 (fr) * 2001-11-02 2003-05-08 Valeo Climatisation Groupe moto-ventilateur
EP2102506A1 (fr) * 2006-12-29 2009-09-23 LG Electronics Inc. Ventilateur de climatiseur
FR2961971A1 (fr) * 2010-06-24 2011-12-30 Valeo Systemes Thermiques Support moteur a dispositif de limitation de mouvements
CN108297485A (zh) * 2018-02-28 2018-07-20 海宁市冲达机械设计有限公司 一种纸杯机的双管道吹杯装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909507C1 (de) 1999-03-04 2000-11-16 Temic Auto Electr Motors Gmbh Radialgebläse, insbesondere für Heizungs- und Klimaanlagen
DE10346187A1 (de) * 2003-10-02 2005-04-21 Behr Gmbh & Co Kg Gebläse
DE102011088074A1 (de) * 2011-12-09 2013-06-13 BSH Bosch und Siemens Hausgeräte GmbH Lüftervorrichtung, Haushaltsgerät sowie Verfahren zum Kühlen eines Motors einer Lüftervorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692428A (en) * 1970-01-12 1972-09-19 Gen Ind Co The Centrifugal blower
CH538095A (de) * 1972-04-17 1973-06-15 Brechbuehl Fa Heinrich Dachventilator
GB2067665A (en) * 1979-12-13 1981-07-30 Bosch Gmbh Robert Radial fan
EP0159404A1 (fr) * 1984-03-19 1985-10-30 Siemens Aktiengesellschaft Installation de chauffage ou de climatisation pour véhicule automobile à commande automatique de la température de l'air à l'intérieur de l'habitacle
DE3427565A1 (de) 1984-07-26 1986-02-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Durch einen elektromotor angetriebenes radialgeblaese
EP0488961A1 (fr) * 1990-10-30 1992-06-03 INDUSTRIE MAGNETI MARELLI S.p.A. Ventilateur, notamment pour véhicules automobiles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692428A (en) * 1970-01-12 1972-09-19 Gen Ind Co The Centrifugal blower
CH538095A (de) * 1972-04-17 1973-06-15 Brechbuehl Fa Heinrich Dachventilator
GB2067665A (en) * 1979-12-13 1981-07-30 Bosch Gmbh Robert Radial fan
EP0159404A1 (fr) * 1984-03-19 1985-10-30 Siemens Aktiengesellschaft Installation de chauffage ou de climatisation pour véhicule automobile à commande automatique de la température de l'air à l'intérieur de l'habitacle
DE3427565A1 (de) 1984-07-26 1986-02-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Durch einen elektromotor angetriebenes radialgeblaese
EP0488961A1 (fr) * 1990-10-30 1992-06-03 INDUSTRIE MAGNETI MARELLI S.p.A. Ventilateur, notamment pour véhicules automobiles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6074181A (en) * 1998-07-09 2000-06-13 Ff Seeley Nominees Pty. Ltd. Shroud for fan motor cooling
FR2789447A1 (fr) * 1999-02-10 2000-08-11 Valeo Climatisation Dispositif de chauffage et/ou climatisation comprenant un pulseur centrifuge
WO2000054996A1 (fr) * 1999-03-13 2000-09-21 Dong Jin Motor Co., Ltd Configuration de guidage d'air pour le refroidissement d'un moteur du dispositif de repartition d'air d'une voiture
WO2003038281A1 (fr) * 2001-11-02 2003-05-08 Valeo Climatisation Groupe moto-ventilateur
FR2831928A1 (fr) * 2001-11-02 2003-05-09 Valeo Climatisation Groupe moto-ventilateur comportant des canaux de refroidissement integres
EP2102506A1 (fr) * 2006-12-29 2009-09-23 LG Electronics Inc. Ventilateur de climatiseur
EP2102506A4 (fr) * 2006-12-29 2012-10-03 Lg Electronics Inc Ventilateur de climatiseur
FR2961971A1 (fr) * 2010-06-24 2011-12-30 Valeo Systemes Thermiques Support moteur a dispositif de limitation de mouvements
WO2012000592A3 (fr) * 2010-06-24 2012-06-28 Valeo Systemes Thermiques Support moteur a dispositif de limitation de mouvements
CN108297485A (zh) * 2018-02-28 2018-07-20 海宁市冲达机械设计有限公司 一种纸杯机的双管道吹杯装置

Also Published As

Publication number Publication date
DE59608703D1 (de) 2002-03-21
EP0780579B1 (fr) 2002-02-06
DE19547674A1 (de) 1997-06-26

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