WO2023275106A1 - Support de moteur de ventilateur, en particulier dans un dispositif de chauffage, ventilation et climatisation - Google Patents

Support de moteur de ventilateur, en particulier dans un dispositif de chauffage, ventilation et climatisation Download PDF

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Publication number
WO2023275106A1
WO2023275106A1 PCT/EP2022/067820 EP2022067820W WO2023275106A1 WO 2023275106 A1 WO2023275106 A1 WO 2023275106A1 EP 2022067820 W EP2022067820 W EP 2022067820W WO 2023275106 A1 WO2023275106 A1 WO 2023275106A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan motor
motor mount
point
pair
variable
Prior art date
Application number
PCT/EP2022/067820
Other languages
German (de)
English (en)
Inventor
Raghu Tejaswi BELLUR
Christian Jonhatan SOTO
Jan Liska
Juraj LEPOT
Original Assignee
Valeo Klimasysteme 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 Valeo Klimasysteme Gmbh filed Critical Valeo Klimasysteme Gmbh
Publication of WO2023275106A1 publication Critical patent/WO2023275106A1/fr

Links

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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • 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
    • 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
    • F04D29/66—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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present invention relates generally to an air conditioning system for a vehicle, and more particularly to a fan motor mount in such a system
  • Rotating masses of a fan system of heating, ventilation and air-conditioning devices can be a significant source of vibration and noise related to static and dynamic imbalances of the rotating masses. Therefore, a decoupling system with soft material decoupling elements is typically used to reduce vibration transmission between the rotating masses and the static structures surrounding the rotating masses. Additionally, during operation of the fan system, random external forces are induced caused by the interaction between the vehicle and the environment. The dynamic reaction of the fan system, which is decoupled by low-rigidity isolating elements, can lead to increased vibrations of the fan system. In extreme cases, the decoupling elements can be damaged and cause the blower system to fail.
  • FIG. 1 A known, manufactured by the applicant fan system of heating, ventilation and air conditioning equipment, equipped with an engine vibration limiter is shown in FIG.
  • the blower system includes a blower motor 40 with a fan wheel 60.
  • the blower motor 40 is accommodated in an inner blower motor mount 20.
  • the inner fan motor mount 20 is mounted to an outer structure 30 via decoupling members 23 .
  • a cover 50 is attached to the outer structure 30 . Oscillations of the fan motor 40 can be absorbed by the decoupling elements 23 to a certain extent, whereby the transmission of vibrations and the formation of noise can be reduced.
  • the inner fan motor mount 20 includes a plurality of stoppers 10.
  • the stoppers 10 are provided in a plurality of recesses 55 corresponding to the number of stoppers 10 of the cover 50. As shown in FIG.
  • the stoppers 10 are made of a hard material and additionally help to reduce vibrations by forming an amplitude limit for vibrations.
  • a fan motor mount comprising an inner fan motor mount accommodating a fan motor having a drive axle and an outer structure supporting the inner fan motor mount.
  • the drive axis of the blower motor forms a cylindrical coordinate axis of a cylindrical coordinate system, wherein a spaced pair of surface pieces is formed at least two different ordinate distances at different radial distances to limit relative movement between the inner blower motor mount and the outer structure.
  • the fan motor mount according to the first aspect makes it possible to limit vibration amplitudes of the fan motor and thus limit damage to the fan motor mount due to vibration.
  • the spaced-apart pair of surfaces comprises at least one of an initial pair of surfaces comprising an initial abutment surface and an initial mating surface, a first pair of surfaces comprising a first abutment surface and a first mating surface, a second pair of surfaces comprising a second abutment surface and a second counter surface and a variable surface piece pair comprising a variable stop surface and a variable counter surface.
  • the at least one spaced-apart pair of flat pieces accordingly forms a movement limitation of a stop surface of the inner blower motor mount in relation to a mating surface of the outer structure.
  • the fan motor mount of the foregoing aspect provides a motion limiter in at least one of a plurality of locations to limit amplitudes of vibration of the fan motor.
  • the initial patch pair is established at an initial ordinate spacing passing through an origin of the cylindrical coordinate system.
  • the first patch pair is established at a first ordinate distance between the origin of the cylindrical coordinate system and a first point.
  • the first point is provided at a distance from the origin of the coordinate system. Accordingly, the first ordinate distance extends between the origin of the cylinder coordinate system and the first point on the cylinder coordinate axis.
  • the second patch pair is established at a second ordinate distance between the first point and the second point on the cylindrical coordinate axis.
  • the variable patch pair is set at a variable ordinate distance between the first point and a third point on the cylindrical coordinate axis. Accordingly, the variable ordinate distance extends in a range between the first point on the cylinder coordinate axis and the third point on the cylinder coordinate axis.
  • the fan motor mounting according to the aforementioned aspect limits the vibration amplitudes of the fan motor in several areas along the cylinder coordinate axis.
  • a radial distance of the variable abutment surface changes with respect to the drive axis in the variable ordinate distance between the first point and the third point.
  • a radial spacing of the variable mating surface with respect to the drive axis in the variable ordinate spacing between the first point and the third point of the outer structure remains essentially constant. Accordingly, a radial distance between the variable stop surface and the variable counter surface changes in the variable ordinate distance.
  • the fan motor mounting according to the above aspect makes it possible to record under different vibration amplitudes along the drive axis.
  • the fan motor mount further includes decoupling members disposed between the inner fan motor mount and the outer structure to support the inner fan motor mount.
  • the fan motor mount according to the above aspect enables simple assembly of the inner fan motor mount comprising the fan motor in the outer structure.
  • the decoupling elements comprise a flexible material to reduce vibration amplitudes of a blower motor with an impeller. This flexibly supports the inner fan motor mount relative to the outer structure to absorb vibrations or limit noise.
  • the fan motor mounting according to the aforementioned aspect makes it possible to reduce vibration amplitudes or slight vibrations and the resulting noise.
  • the inner fan motor mount comprises at least one stop element, which extends in the first ordinate distance from the origin of the cylinder coordinate system to the first point and at least one extension, which extends from the at least one stop element in the variable ordinate distance to the third th point.
  • the fan motor mount according to the above aspect provides a motor vibration limiter which can absorb an amplitude of vibration without leading to a failure.
  • the at least one extension includes a cavity, with a protrusion extending within the cavity.
  • the fan motor mount according to the above aspect provides a structure through the cavity and the projection, which can absorb a higher vibration amplitude and higher forces.
  • the outer structure on the variable mating surface includes a plurality of first ribs and second ribs in a circumferential direction, the first and second ribs extending along the drive axis.
  • the fan motor mounting according to the above aspect provides a receiving area ready into which one of the extensions can be inserted.
  • the first ribs and the second ribs each partially cover at least one extension in the radial direction.
  • the fan motor mount according to the above aspect provides a counter surface to the extension by the first and second ribs to limit an amplitude of vibration in the circumferential direction.
  • the fan motor mount further includes a cover, where the cover is coupled to the outer structure and has a plurality of recesses.
  • the fan motor mounting according to the above aspect is protected by the cover against dirt from the outside and prevents an air flow that is generated from being sucked in uncontrolled by the fan wheel.
  • each recess of the plurality of recesses accommodates a stop member of the plurality of stop members.
  • one recess can limit a movement in the circumferential direction of one stop element in each case.
  • the fan motor mounting according to the aforementioned aspect can limit a movement in the circumferential direction of a respective stop element with a recess in each case.
  • the respective one stop element of the plurality of stop elements is spaced apart from the respective one recess of the plurality of recesses.
  • the fan motor mount according to the above aspect provides a motor vibration limiter which can absorb vibration amplitude peaks to prevent failure.
  • the fan motor mount can be used in a fan system to limit transmission of vibration amplitudes of a fan motor with an impeller.
  • the fan motor mounting according to the above aspect provides a motor vibration limiter which reduces or limits the occurrence of noise up to and including operational failure of the fan system.
  • FIG. 1 shows a known fan system for a heating, ventilation and air conditioning device.
  • FIG. 1 shows a sectional view through a fan system with a fan motor mounting as an embodiment of the present invention.
  • FIG. 3 shows a three-dimensional representation of the blower system shown in FIG.
  • FIG. 4 shows a schematic detailed sectional view through the fan motor bearing shown in FIGS. 2 and 3.
  • FIG. 5 shows a second detailed sectional view of the fan motor mounting.
  • FIG. 6 shows a third detailed sectional view of the fan motor mounting.
  • FIG. 2 shows a sectional view through a fan system with a fan motor mount 100 as a motor vibration limiter for a heating, ventilation and air conditioning device.
  • the blower system includes a blower motor 40, having a drive axis Z, with a fan wheel 60.
  • the fan wheel 60 is shown as a radial fan.
  • the fan wheel 60 is a conventional fan wheel for a fan system of heating, ventilation and air conditioning devices in vehicles. A detailed description of the configuration of the fan wheel 60 is therefore omitted for reasons of brevity.
  • the fan motor 40 is housed in an internal fan motor mount 20 .
  • the inner blower motor mount 20 is decoupling elements 23 at a WO 2023/275106 PCT/EP2022/067820
  • the decoupling elements 23 to summarize a flexible material.
  • the flexible material is, for example, one of rubber, ..., but this does not limit the invention.
  • the flexible decoupling elements 23 can absorb vibrations and noise from the blower motor 40 with the fan wheel 60 and limit the vibrations and forces that occur from the blower motor 40 to the outer structure 30 and vice versa.
  • the outer structure 30 is a rigid component and supports the blower motor 40 with the fan wheel 60 via the decoupling elements 23 and the inner blower motor mount 20.
  • the blower system can be mounted in the vehicle via the outer structure 30.
  • a cover 50 is mounted on the outer structure 30 .
  • the cover 50 comprises a multiplicity of recesses 55.
  • the inner fan motor mount 20 includes the fan motor mount 100.
  • Blower motor mount 100 includes at least one stop element 110, at least one extension 120, and a cavity 140 in each case.
  • the blower motor 40 is secured by a plurality of holding elements 25 in the inner blower motor mount 20 in the axial direction.
  • the at least one stop element 110 each includes a projection 130.
  • the projection 130 extends radially into the cavity 140.
  • the projection 130 also extends axially through the cavity 140.
  • the inner blower motor mount 20 is fitted with the decoupling elements 23 into the outer structure 30 assembled.
  • the drive axis Z of the fan motor 40 forms a cylinder coordinate axis of a cylinder coordinate system ZKS.
  • the cylindrical coordinate system ZKS comprises at least an origin 0, a first point 1, a second point 2 and a third point 3 on the drive axis Z.
  • the first point 1 is defined at a position on the drive axis Z where the stop element 110, starting from ends from the origin 0 in the axial direction.
  • the second point 2 is defined at a position on the drive axis Z where an end face S30 of the outer structure 30 is located.
  • the cover 50 contacts the face S30 when the cover 50 is assembled to the outer structure 30.
  • the third point 3 is defined at a position on the drive axis Z up to which Rather, the extension 120 extends in the axial direction, starting from the stop element 110.
  • the blower motor mount 100 is therefore divided into three areas along the drive axis Z.
  • Each spaced patch pair FP includes a stop surface A on the inner fan motor mount 20 and a mating surface G on the outer structure 30. The extent of stop surface A and mating surface G is minimal and converges to zero.
  • the spaced patch pair FP comprises at least one of an initial patch pair FP0, a first patch pair FP1, a second patch pair FP2, and a variable patch pair FPz.
  • the initial pair of surface pieces FP0 is located at the initial ordinate distance LZ0 and includes an initial stop surface A0 and an initial mating surface G0.
  • the first pair of surface pieces FP1 is in the first ordinate distance LZ1 and includes a first stop surface Al and a first mating surface Gl.
  • the second pair of surface pieces FP2 is in the second ordinate distance LZ2 and includes a second stop surface A2 and a second mating surface G2.
  • the variable patch pair FPz is located WO 2023/275106 PCT/EP2022/067820
  • variable ordinate distance LZz includes a variable stop surface A3z and a variable counter surface G3z.
  • the spaced-apart pair of surface pieces FP can oppose one another in a transverse plane lying transversely to the drive axis Z or in a radial plane lying parallel to the drive axis Z.
  • a plane parallel to and at an axial distance from the transverse plane is also a transverse plane.
  • a plane parallel to and at a radial distance from the radial plane is also a radial plane.
  • first patch pair FPf and the variable patch pair FPz are oriented in the radial plane.
  • initial pair of patches FPO and the second pair of patches FP2 are oriented in the transverse plane.
  • the radial distance ie the respective distance in the radial direction from the drive axis Z to the stop surface A in the respective ordinate distance LZ, is dependent on the respective ordinate distance LZ.
  • a radial distance Ri of the first stop face Al with respect to the drive axis Z in the first ordinate distance LZ1 between the origin 0 and the first point 1 remains essentially constant, for example.
  • a radial distance Rz of the variable stopper surface A3z variably changes with respect to the drive axis Z in the variable ordinate distance LZz between the first point 1 and the third point 3 along the axial direction. Consequently, a variable radial distance RDz changes between the variable stop surface A3z and the variable counter surface G3z.
  • the variable radial distance RDz increases from the second point 2 to the third point 3.
  • the stop element 110 is spaced from the recess 55 of the cover 50 in the axial direction by a first axial distance AD1 and in the radial direction by a first radial distance RD1.
  • the stop member 110 is spaced from the outer structure 30 by the second axial distance AD2.
  • Extension 120 is spaced from outer structure 30 by variable radial distance RDz.
  • the respective stop surface A and the opposite surface G of each pair of surface pieces FP do not touch each other when the blower system is at a standstill.
  • Fig. 6 is a third detailed sectional view of the fan motor mounting through a plane X in Fig. 5 is shown.
  • the outer structure 30 has a plurality of first ribs 32 and second ribs 34 in the circumferential direction on the variable counter surface G3z.
  • WO 2023/275106 PCT/EP2022/067820 10 wherein the first and second ribs 32, 34 extend along the drive axis Z. This provides a receiving area in which one of the extensions 120 can be received.
  • the first rib 32 and the second rib 34 each partially cover the extension 120 in the radial direction. Between the ribs 32, 34 and the extension 120 there is a first circumferential distance UD1 and a second circumferential distance UD2.
  • the first circumferential distance UD1 and the second circumferential distance UD2 are the same when the fan system is at a standstill. Consequently, the extension 120 and the outer structure 30 do not touch when stationary.
  • the first and second ribs 32, 34 serve as mating surfaces for the extension 120 and limit or reduce the vibration amplitudes in the circumferential direction during operation.
  • vibration amplitudes can exceed the decoupling elements 23 are added.
  • the vibration amplitudes are limited over the axial distances AD1, AD2, the radial distances RD1, RDz and the circumferential distances UD1, UD2.
  • the decoupling elements 23 are protected from damage and consequently the fan system is protected from failure in several transverse and radial planes that are spaced apart and offset.

Landscapes

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

Abstract

Support de moteur de ventilateur comprenant un réceptacle de moteur de ventilateur interne, qui loge un moteur de ventilateur doté d'un axe d'entraînement, et une structure externe qui supporte le réceptacle de moteur de ventilateur interne. L'axe d'entraînement du moteur de ventilateur forme un axe de coordonnées cylindriques d'un système de coordonnées cylindriques. Afin de limiter un déplacement relatif entre le réceptacle de moteur de ventilateur interne et la structure externe, une paire de composants de surface espacés est dans chaque cas formée à une distance radiale différente à au moins deux distances d'ordonnées différentes.
PCT/EP2022/067820 2021-06-30 2022-06-29 Support de moteur de ventilateur, en particulier dans un dispositif de chauffage, ventilation et climatisation WO2023275106A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021116920.8A DE102021116920A1 (de) 2021-06-30 2021-06-30 Gebläsemotorlagerung, insbesondere in einem Heizungs-, Lüftungs- und Klimagerät
DE102021116920.8 2021-06-30

Publications (1)

Publication Number Publication Date
WO2023275106A1 true WO2023275106A1 (fr) 2023-01-05

Family

ID=82361207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/067820 WO2023275106A1 (fr) 2021-06-30 2022-06-29 Support de moteur de ventilateur, en particulier dans un dispositif de chauffage, ventilation et climatisation

Country Status (2)

Country Link
DE (1) DE102021116920A1 (fr)
WO (1) WO2023275106A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076795A (en) * 1997-02-21 2000-06-20 Robert Bosch Gmbh Retaining device for an electric motor
EP1308632A1 (fr) * 2001-11-02 2003-05-07 Behr GmbH & Co. Dispositif pour arrangement élastique d'un moteur electrique
DE102015208473A1 (de) * 2015-05-07 2016-11-10 Mahle International Gmbh Gebläseeinrichtung
EP2456053B1 (fr) * 2010-11-17 2019-09-11 Valeo Systemes Thermiques Dispositif de support-moteur, en particulier pour un groupe moto-ventilateur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009008955B4 (de) 2009-02-13 2013-05-29 Schenck Rotec Gmbh Verfahren und Vorrichtung zum dynamischen Messen der Unwucht des Rotors einer Turbolader-Rumpfgruppe
DE102011056584A1 (de) 2011-12-19 2013-06-20 Linde Material Handling Gmbh & Co. Kg Hydrostatische Antriebseinheit mit einer Körperschallabkopplung und Anschlägen
DE102014224910A1 (de) 2014-12-04 2016-06-09 Mahle International Gmbh Gebläse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076795A (en) * 1997-02-21 2000-06-20 Robert Bosch Gmbh Retaining device for an electric motor
EP1308632A1 (fr) * 2001-11-02 2003-05-07 Behr GmbH & Co. Dispositif pour arrangement élastique d'un moteur electrique
EP2456053B1 (fr) * 2010-11-17 2019-09-11 Valeo Systemes Thermiques Dispositif de support-moteur, en particulier pour un groupe moto-ventilateur
DE102015208473A1 (de) * 2015-05-07 2016-11-10 Mahle International Gmbh Gebläseeinrichtung

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Publication number Publication date
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