EP2333348B1 - Boîtier de ventilateur radial - Google Patents

Boîtier de ventilateur radial Download PDF

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Publication number
EP2333348B1
EP2333348B1 EP10192128.6A EP10192128A EP2333348B1 EP 2333348 B1 EP2333348 B1 EP 2333348B1 EP 10192128 A EP10192128 A EP 10192128A EP 2333348 B1 EP2333348 B1 EP 2333348B1
Authority
EP
European Patent Office
Prior art keywords
radial fan
air
fan
radial
housing device
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.)
Not-in-force
Application number
EP10192128.6A
Other languages
German (de)
English (en)
Other versions
EP2333348A2 (fr
EP2333348A3 (fr
Inventor
Matthias Lang
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Mahle Behr GmbH and Co KG
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 Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP2333348A2 publication Critical patent/EP2333348A2/fr
Publication of EP2333348A3 publication Critical patent/EP2333348A3/fr
Application granted granted Critical
Publication of EP2333348B1 publication Critical patent/EP2333348B1/fr
Not-in-force 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
    • F04D29/40—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
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • 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
    • F04D29/663—Sound attenuation

Definitions

  • the invention relates to a radial fan housing device having at least one radial fan receiving space and at least one Luftabtechnologieö réelle, wherein the at least one radial fan receiving space with the at least one Vietnameseabtechnologieö réelle forms a housing tongue.
  • the invention further relates to a radial fan with at least one radial fan.
  • the invention relates to a vehicle air conditioning system, in particular an automotive air conditioning system.
  • blowers or fans are known, which are also used in practice. Typical designs are, for example, axial fans or radial fans.
  • blowers or fans are used is the ventilation or air conditioning of substantially closed rooms, such as, for example, of building interiors or vehicle interiors.
  • substantially closed rooms such as, for example, of building interiors or vehicle interiors.
  • a particularly frequent field of use are interior spaces of motor vehicles.
  • Ventilation or air-conditioning of closed interiors generally requires a high level of comfort. With these comfort requirements, the lowest possible operating noise of the system is desired. For this reason, in the air conditioning of closed interiors mostly radial fans are used, since they have compared to axial fans usually a lower operating noise (even if axial fans, for example, in terms of size and / or the air flow rate radial fans are often superior).
  • a radial fan with integrated control unit in which the housing is in the form of a spiral housing containing a controlled by a control unit electric motor which drives a radial fan, which is intended to inject air into the volute, which in a predetermined range at least includes a baffle having a curvature.
  • the control unit is arranged such that it is at least partially integrated in the deflection wall.
  • a radial fan which has a spiral housing, which at least in the area the spiral inlet is formed metallic and in this region has on its inside parallel to the air flow extending cooling fins.
  • the control or regulating electronics receiving housing is in thermal connection with the part containing the cooling fins of the spiral housing.
  • the US 3,794,439 A discloses a radial fan housing device having a louver and a fan blade.
  • the louver is arranged opposite the fan tongue.
  • the object of the invention is therefore to propose an improved radial fan housing device in comparison with radial ventilator housing devices known in the prior art.
  • a radial fan housing device for this purpose, the at least one radial fan receiving space and at least one Luftab technologicalö réelle wherein the at least one radial fan receiving space with the at least one air discharge opening forms a housing tongue such that at least one air guiding device is arranged in the radial fan receiving space.
  • the inventors have discovered to their own surprise that such an arrangement of louvers in the actual radial fan receiving space can cause a significant noise reduction, with a noise reduction can occur especially in the low frequency range. In particular, usually with relatively small louvers large noise reduction effects can be achieved.
  • the guide elements are usually arranged in a region of the radial fan housing device, which is arranged between the actual, usually spirally formed housing wall of the radial fan receiving space and the area in which the radial fan is in the assembled state of the radial fan housing device.
  • the air guide elements can also be made particularly small, which among other things can also have particularly great advantages in terms of the efficiency of the finished radial fan.
  • louvers along the height extent of the radial fan housing device basically arranged at any location can be (as for example at mid-height of the radial fan housing device), so have first tests revealed that usually result in particularly large noise reductions, if at least one louver on the motor side and / or frame side is arranged. In other words, it is advantageous if at least one air guiding device is arranged in the region of the bottom or the cover of the radial fan housing device.
  • the radial fan housing device has a plurality of louvers, in particular two, three, four, five, six, seven, eight, nine or ten louvers. With such a number, a particularly good compromise between noise reduction, simple and inexpensive construction and the highest possible efficiency of the finished radial fan can be found in the rule. Moreover, it is particularly advantageous if an even number of air guiding devices is provided, which are particularly preferably arranged in pairs in the cover region or in the bottom region of the radial fan housing device.
  • the height of at least one louver only a part of the height of the radial fan receiving space and / or the Heilab technologicalö réelle makes, and in particular only a small part of the height of the radial fan receiving space and / or the Heilabtechnologyö réelle makes.
  • the radial fan housing device can be a particularly good compromise between the greatest possible noise reduction, relatively simple and inexpensive construction and maximum efficiency can be found.
  • the height of a spoiler can for example be between 0%, 1%, 2%, 3%, 4%, 5%, 7.5% or 10% and 2.5%, 5%, 7.5%, 10%, 15%, 20%, 25%, 30%, 40% and 50% respectively the height of the radial fan receiving space and / or the Heilab Technologyö réelle amount.
  • At least one air guiding device has a curvature at least in some areas, which curvature is bent inwards as seen in the air flow direction.
  • At least one air guiding device has a rectangular, triangular, quadrangular, trapezoidal, curved and / or wave-like shape as seen in the direction of air flow.
  • initial tests have shown that on the one hand such shapes can usually be achieved mechanically relatively easily and, on the other hand, a particularly high noise reduction can result.
  • a further preferred embodiment of the radial fan housing device can then result if at least one air guiding device is shaped thin-walled at least in regions and / or has a plastic material at least in regions.
  • Such a design may prove to be simple to manufacture (for example, the air On the other hand can be achieved with the proposed training usually a particularly low air resistance and thus a high efficiency of the resulting radial fan on the other hand can be made integral with the radial fan housing device or parts thereof, by a plastic injection molding.
  • a radial fan which has at least one radial fan, and which has at least one radial fan housing device with the structure described above.
  • a radial fan designed in this way has the properties and advantages already described in an analogous manner.
  • vehicle air conditioning system in particular an automotive air conditioning system, such that it has at least one radial fan with the structure described above and / or at least one radial fan housing device with the previously described construction.
  • vehicle air conditioning system motor vehicle air conditioning system
  • the resulting vehicle air conditioning system can then likewise have the properties and advantages already described in an analogous manner.
  • the vehicle (or motor vehicle) in which the vehicle air conditioning system (motor vehicle air conditioning system) is installed can in particular be a watercraft, a land vehicle (rail-bound / non-rail-bound), an aircraft or a spacecraft.
  • Fig. 1 is a possible embodiment of a radial fan 1 shown in a schematic plan view from above.
  • the radial fan 1 essentially consists of a housing 2, in the interior of which a housing wall 3 bounded by a receiving space 4, a fan 5 is arranged. Between the fan 5 and the housing wall 3, a gap, the so-called air gap 14, can be seen, which increases seen in the air flow direction L spiral.
  • the fan 5 consists of an annularly arranged plurality of Lüfterradlamellen (not shown in the figures.). On one side of the fan 5, this has a plate-like hub 6, in the middle of the drive shaft 7 of the fan 5 is provided.
  • the drive shaft 7 is - as is common practice - also connected in the present embodiment shown with an electric motor, which can put the fan 5 in the direction of arrow A in rotation.
  • the air flow L conveyed by the fan wheel 5 leaves the housing 2 via an air discharge opening 11, which opens into an air discharge duct 12.
  • the local wall of the Heilab technologicalkanals 12 forms together with the housing wall 3 of the receiving space 4, the so-called tongue (fan tongue) 13.
  • Fig. 1 how one Fig. 1 can be seen, seen in the air flow direction L downstream (corresponds to the direction of rotation A of the fan 5) in the presently illustrated embodiment, a total of four vanes 17 are shown. Since the guide elements 17 are arranged in pairs, namely on the cover 15 and on the bottom 16 of the housing 2 (see Fig. 2 ; at the in Fig. 1 View shown only the bottom 16 arranged vanes 17 can be seen), in the illustrated embodiment of the radial fan 1 a total of eight vanes 17 are provided.
  • the guide elements 17 each have a view in Luftströmungsnchtung inside, the fan 5 pointing towards curvature.
  • the guide elements 17 are only partially curved, are curved in a different direction, are not curved at all, and / or in each case only partially curved.
  • the arrangement of the guide elements 17 extends to an angular range ( starting from the top of the tongue 13) which is between 0 °, 5 °, 10 °, 15 ° or 20 ° and 10 °, 20 °, 30 °, 40 °, 50 ° or 60 °.
  • Fig. 2 shows a partial cross section through a region which is in Fig. 1 designated AA.
  • Fig. 2 is particularly easy to see how both a pair of guide elements 17 is arranged both at the bottom 16, and on the cover 15 of the housing 2.
  • the guide elements 17 in this case have a triangular height profile. Their height thus increases steadily and linearly, starting from the housing wall 3 in the direction of the fan wheel 5.
  • the height of the guide elements 17 is relatively small and varies in the illustrated embodiment between 3% in the region of the housing wall 3 and 10% in the area of the fan 5.
  • the guide elements 17 are formed on the cover 15 and the bottom 16 in the present embodiment, completely symmetrical to each other, it is also possible that they are asymmetrical, and in particular have a different height of the lid 15 and the bottom 16.
  • Fig. 3 shows a perspective view of essential parts of the radial fan 1.
  • Fig. 3 shows a perspective view of essential parts of the radial fan 1.
  • the guide elements 17 each extend essentially completely between the housing wall 3 and the fan wheel 5 (also in FIG Fig. 1 and Fig. 2 to recognize). As the air gap 14 becomes larger in a spiral, this means that the guide elements 17 become successively longer (the angle of attack relative to the air flow L always remains constant).
  • the height of the guide elements 17 both in the region of the housing wall 3, as well as in the region of the fan 5 each have the same height.
  • the guide elements 17 therefore have a different pitch.
  • the guide elements 17 have a different length and / or a different angle of attack relative to the air flow L.
  • Fig. 4 the effect of the guide elements 17 for the noise emission behavior of the radial fan 1 is shown.
  • the frequency plotted on a logarithmic scale while along the ordinate 20 in each case the frequency-dependent summation pressure level in dB (A) are plotted.
  • Fig. 4a shows the measured on the pressure side of the radial fan 1 (ie in the region of Lucasab technologicalkanals 12) noise spectrum while Fig. 4b on the suction side (ie in the region of the frame 10 measured) noise emission spectrum of the radial fan 1 shows.
  • the curves 21 and 22 show the noise emission behavior in the Fig.

Landscapes

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

Claims (7)

  1. Dispositif formant boîtier de ventilateur radial (2), ledit dispositif présentant au moins un espace de logement (4) du ventilateur radial et au moins une ouverture d'évacuation d'air (11), où l'espace de logement (4) - au moins au nombre de un - du ventilateur radial forme, avec l'ouverture d'évacuation d'air (11) au moins au nombre de un, une languette de boîtier (13), où au moins un dispositif déflecteur d'air (17) est disposé dans l'espace de logement (4) du ventilateur radial, caractérisé en ce que le dispositif déflecteur d'air (17) au moins au nombre de un, vu dans la direction d'écoulement d'air (L), est disposé directement derrière la languette de boîtier (13), et le dispositif déflecteur d'air (17) au moins au nombre de un présente au moins partiellement une courbure qui, vue dans la direction d'écoulement d'air (L), est incurvée vers l'intérieur.
  2. Dispositif formant boîtier de ventilateur radial (2) selon la revendication 1, caractérisé en ce qu'au moins un dispositif déflecteur d'air (17) est disposé côté moteur (8) et / ou côté châssis (9).
  3. Dispositif formant boîtier de ventilateur radial (2) selon l'une des revendications précédentes, caractérisé par une pluralité de dispositifs déflecteurs d'air (17), en particulier par deux, trois, quatre, cinq, six, sept, huit, neuf ou dix dispositifs déflecteurs d'air (17).
  4. Dispositif formant boîtier de ventilateur radial (2) selon l'une quelconque des revendications précédentes, caractérisé en ce que la hauteur d'au moins un dispositif déflecteur d'air (17) constitue seulement une partie de la hauteur de l'espace de logement (4) du ventilateur radial et / ou de l'ouverture d'évacuation d'air (11).
  5. Dispositif formant boîtier de ventilateur radial (2) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un dispositif déflecteur d'air (17) présente au moins partiellement un matériau se composant de plastique.
  6. Ventilateur radial (1) présentant au moins une roue de ventilateur radial (5) et caractérisé par au moins un dispositif formant boîtier de ventilateur radial (2) selon l'une quelconque des revendications 1 à 5.
  7. Système de climatisation d'un véhicule, en particulier système de climatisation d'un véhicule automobile, présentant au moins un ventilateur radial (1) selon la revendication 6 et / ou au moins un dispositif formant boîtier de ventilateur radial (2) selon l'une quelconque des revendications 1 à 5.
EP10192128.6A 2009-11-23 2010-11-22 Boîtier de ventilateur radial Not-in-force EP2333348B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009054188A DE102009054188A1 (de) 2009-11-23 2009-11-23 Radiallüftergehäuse

Publications (3)

Publication Number Publication Date
EP2333348A2 EP2333348A2 (fr) 2011-06-15
EP2333348A3 EP2333348A3 (fr) 2013-01-30
EP2333348B1 true EP2333348B1 (fr) 2018-02-21

Family

ID=43566649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10192128.6A Not-in-force EP2333348B1 (fr) 2009-11-23 2010-11-22 Boîtier de ventilateur radial

Country Status (2)

Country Link
EP (1) EP2333348B1 (fr)
DE (1) DE102009054188A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020200447A1 (de) * 2020-01-15 2021-07-15 Ziehl-Abegg Se Gehäuse für einen Ventilator und Ventilator mit einem entsprechenden Gehäuse

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Publication number Priority date Publication date Assignee Title
DE102010029008A1 (de) * 2010-05-17 2011-11-17 Behr Gmbh & Co. Kg Kraftfahrzeugklimaanlage
CN103994102B (zh) * 2014-05-07 2016-08-24 江苏大学 一种低比转速离心泵用螺旋形压水室设计方法
CN104373385B (zh) * 2014-10-29 2017-06-30 珠海格力电器股份有限公司 蜗壳及具有其的离心式风机
CN110017293B (zh) * 2014-11-25 2021-07-30 台达电子工业股份有限公司 离心式风扇
DE102015118557A1 (de) 2015-10-30 2017-05-04 Ebm-Papst Mulfingen Gmbh & Co. Kg Aufdachklimaanlage
CN108799201B (zh) * 2018-05-24 2020-07-31 珠海格力电器股份有限公司 蜗壳部件、风道部件及空调器
DE102020112190A1 (de) * 2020-05-06 2021-11-11 Claas Selbstfahrende Erntemaschinen Gmbh Mähdrescher

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US5120193A (en) * 1990-02-26 1992-06-09 General Motors Corporation Baffle for reducing airflow noise in a scroll housing
DE4106130A1 (de) 1991-02-27 1992-09-03 Licentia Gmbh Durch einen buerstenlosen gleichstrommotor angetriebenes geblaese mit einem spiralfoermigen gehaeuse
FR2746864B1 (fr) 1996-03-26 1998-05-22 Valeo Climatisation Ventilateur centrifuge a module de commande integre, notamment pour vehicule automobile
DE29920373U1 (de) 1999-11-19 2000-01-13 Motoren Ventilatoren Landshut Gmbh, 84030 Landshut Gehäuse für einen Lüfter, insbesondere einen Radiallüfter
JP4026366B2 (ja) 2001-03-16 2007-12-26 株式会社デンソー 遠心式送風機
JP4116359B2 (ja) * 2002-08-08 2008-07-09 カルソニックカンセイ株式会社 遠心送風機
JP4865621B2 (ja) * 2007-04-11 2012-02-01 三菱重工業株式会社 遠心式送風装置
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020200447A1 (de) * 2020-01-15 2021-07-15 Ziehl-Abegg Se Gehäuse für einen Ventilator und Ventilator mit einem entsprechenden Gehäuse

Also Published As

Publication number Publication date
EP2333348A2 (fr) 2011-06-15
DE102009054188A1 (de) 2011-05-26
EP2333348A3 (fr) 2013-01-30

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