EP3885582A1 - Ventilateur de refroidissement du moteur à compensation dynamique des déséquilibres - Google Patents

Ventilateur de refroidissement du moteur à compensation dynamique des déséquilibres Download PDF

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Publication number
EP3885582A1
EP3885582A1 EP21168497.2A EP21168497A EP3885582A1 EP 3885582 A1 EP3885582 A1 EP 3885582A1 EP 21168497 A EP21168497 A EP 21168497A EP 3885582 A1 EP3885582 A1 EP 3885582A1
Authority
EP
European Patent Office
Prior art keywords
fan device
receiving
motor fan
balancing
rotation
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
EP21168497.2A
Other languages
German (de)
English (en)
Other versions
EP3885582B1 (fr
Inventor
Thomas Helming
Tobias Schneider
Markus Liedel
Heidrun Schied
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3885582A1 publication Critical patent/EP3885582A1/fr
Application granted granted Critical
Publication of EP3885582B1 publication Critical patent/EP3885582B1/fr
Active 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
    • F04D29/662—Balancing of rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers

Definitions

  • the invention relates to an engine cooling fan of a vehicle which is provided with a dynamic unbalance compensation device.
  • Mass forces or static and dynamic imbalances are generally caused by inhomogeneous mass distributions of the rotating assemblies, such as the rotor or armature of a motor and the fan, as well as by shape and position tolerances to the axis of rotation and the main axis of inertia of the drive.
  • the shape and position tolerances have the effect that the axis of rotation and the main axis of inertia no longer coincide.
  • this leads, for example, to a static imbalance.
  • the axis of rotation is tilted relative to the main axis of inertia, a centrifugal moment is generated which, in its effects, is equivalent to a moment unbalance or dynamic unbalance.
  • Dynamic imbalance in engine cooling fans usually causes mechanical vibrations.
  • the vibrations generated can extend into the passenger compartment and cause steering wheel flutter, for example, as well as causing disruptive vibration noises.
  • the force effect, caused by the dynamic imbalance is justified in suspicion of sporadically triggering rapid bearing wear in motor cooling fan motors.
  • a motor fan device is now provided with an improved compensation for the dynamic imbalance.
  • the engine fan device according to the invention for a vehicle has at least one or more receiving contours for receiving one or more balancing elements, with at least one receiving contour having at least two planes and / or with at least two receiving contours forming at least two planes.
  • Such a motor fan device has the advantage that there is a simple and automatable possibility of balancing the dynamic imbalance and preventing the disadvantages arising from the imbalance.
  • one, two or more balancing elements are fastened or clamped and / or glued from the outside to compensate for a dynamic imbalance in one or more receiving contours.
  • the balancing elements are dimensioned or have a predetermined weight and are positioned in the receiving contours in such a way that a dynamic imbalance can essentially be prevented.
  • a receiving contour has at least two levels for arranging balancing elements.
  • a plurality of receiving contours can also be provided, each of which has only one level, the levels of the receiving contours being different, however be arranged around the axis of rotation of the motor fan device than the other plane. Further preferred embodiments are described in the subclaims.
  • a first embodiment according to the invention of a motor fan device 10 is shown, in which a dynamic imbalance is compensated.
  • the motor fan device 10 has, as in Fig. 1 is shown, a fan device 12, which contains one or more wing elements 14, which are delimited on their outside by a fan wheel 16 and are formed on their inside on a hub area 18 of the fan device 12, for example.
  • the motor fan device 10 has a motor 20 for driving the fan device 12.
  • the fan device 12 can be coupled to the motor 20 via a driver device 22, for example.
  • the motor fan device 10 has a receiving contour 24 which has at least two, three or more planes 26 which are arranged at different heights.
  • One, two, three or more balancing elements 28 can be provided in the receiving contour 24.
  • the balancing elements 28 can be suitably positioned in the various planes 26 of the receiving contour 24 in order to counteract a dynamic imbalance.
  • the receiving contour 24 forms, for example, a circumferential groove 30 which has a first plane 26 and which is furthermore provided with additional depressions or receptacles that form the second plane 26, as in FIG Figs. 1 and 2 is shown.
  • the receiving contour 24 or groove 30 is arranged concentrically, for example, changes through the additional depressions 32 in two planes of rotation 26 changes.
  • the receiving contour 24 or groove 30 can, for example, also be provided only partially circumferentially.
  • FIG. 3 A sectional view of the engine fan device 10 is shown.
  • the receiving contour 24 is shown in the form of a groove 30 and its two planes of rotation A and B.
  • the receiving contour 24 is formed, for example, in the hub region 18 of the motor fan device 10.
  • the plane of rotation A is arranged higher than the plane of rotation B.
  • two balancing elements 28 are provided in the form of balls, one ball being arranged in the plane of rotation A and one ball in the plane of rotation B. In this way, for example, an undesired tilting of the axis of rotation 34 relative to a main axis of inertia can be counteracted and thus the formation of a dynamic imbalance when the fan device 12 rotates.
  • the balancing elements 28 can be operated from the outside for example, by gluing and / or a corresponding bias in the receiving contour 24 or groove 30 are attached. Furthermore, the balancing elements 28 are made of the same material or have the same material composition, as well as the same weight and the same shape.
  • Fig. 4 a second embodiment of the motor fan device 10 according to the invention is shown. The second embodiment differs from the first embodiment in FIG Fig. 1-3 in that, for example, two or more balancing elements 28 are arranged in the same plane of rotation 26, here for example the plane of rotation A, while one, two or more balancing elements 28, here for example a third balancing element 28, are arranged in the other plane of rotation 26, here for example the Plane of rotation B. In this case, for example, the composition of matter or the weight of at least two or more of the balancing elements 28 are different.
  • Fig. 5 is a perspective view of an engine fan device 10 according to a third embodiment of the present invention.
  • the receiving contour 24, here in the form of a groove 30, is designed around the circumference, with one, two, three or more ribs 36 being provided which interrupt the course of the groove 30 or the receiving contour 24.
  • the ribs 36 can, for example, divide a receiving contour 24 into a plurality of chambers 38 which can accommodate one, two or more balancing elements 28, the chambers 38 forming one, two or more planes 26.
  • the four chambers 38 each have the two planes of rotation A and B, for example.
  • the four chambers 38 can have the same number or a different number of recesses 32 for receiving balancing elements 28.
  • the motor fan device 10 or its fan device 12 likewise has a receiving contour 24 in the form of a groove 30, which is arranged in the hub region 18 of the motor fan device 10.
  • the groove 30 is only partially circumferential.
  • the receiving contour 24 can have, for example, one, two, three or more partially circumferential grooves 30. These can for example be arranged in a ring, for example a concentric ring, as in FIG Fig. 6 is shown.
  • the partially circumferential grooves 30 can, however, also be arranged on rings arranged one behind the other be positioned (not shown).
  • the partially circumferential grooves 30, as shown in Fig. 6 are shown, form different chambers 38 with one, two or more levels 26.
  • the three chambers 38 can accommodate a different number of balancing elements 28, for example.
  • a chamber 38 can only accommodate one balancing element 28 in a plane of rotation B.
  • the two other chambers 38 can accommodate different numbers of balancing elements 28, of which in the planes of rotation A and B.
  • Fig. 7 shows a partial sectional view of a motor fan device 10 according to a fifth embodiment of the invention.
  • the motor fan device 10 or its fan device 12 has at least two receiving contours 24, which are arranged partially or completely circumferentially next to one another, here in the hub region 18 of the motor fan device 10 or its fan device 12.
  • the receiving contours 24 form, for example, two grooves 30 which are in the form of two concentric circles are arranged.
  • Each of the receiving contours 24 or grooves 30 has at least one or more planes 26 or plane of rotation 26.
  • the first, inner groove 30 forms, for example, the plane of rotation A and the second, outer groove 30 the plane of rotation B.
  • each of the receiving contours 24 can also switch between at least two, three or more planes 26, as in the previous embodiments.
  • One, two, three or more balancing elements 28 can be provided in one or both of the receiving contours 24.
  • Fig. 8 further shows a partial sectional view of a motor fan device 10 according to a sixth embodiment of the invention.
  • the sixth embodiment is essentially based on the fifth embodiment.
  • at least one, two or more receiving contours 24 are provided connected to the hub region 18 or the inner end 40 of the wing elements 14 of the fan device 12.
  • the receiving contours 24 can be aligned with the upper side 42 and / or the lower side 44 of the motor fan device 10.
  • This receiving contour 24 or receiving contours 24 can also form at least one further plane 26, for example a plane of rotation C, in which at least one, two, three or more balancing elements 28 can be received.
  • the plane of rotation C can, for example, be higher or lower than the planes of rotation A and B.
  • Fig. 9 shows a partial sectional view of a motor fan device 10 according to a seventh embodiment of the invention.
  • the seventh embodiment is based on the fifth embodiment according to FIG Fig. 7 .
  • at least one, two or more receiving contours 24 are additionally provided on the top and / or bottom 42, 44 of the fan device 12, this time on the outside 46 of the fan device 12 or the outside 46 of the fan wheel 16 are.
  • This receiving contour 24 or receiving contours 24 can form at least one further plane 26, for example a plane of rotation C, in which at least one, two, three or more balancing elements 28 can be received.
  • the plane of rotation C can, for example, be higher or lower than the planes of rotation A and B.
  • the receiving contour 24 is designed, for example, in the form of a groove 30, for example a partially or completely circumferential groove 30.
  • Fig. 10 now shows a partial sectional view of a motor fan device 10 according to an eighth embodiment of the invention.
  • the eighth embodiment is based on the seventh embodiment, the eighth embodiment additionally having at least one, two or more receiving contours 24 on the inside 48 of the fan wheel 16 in addition to at least one receiving contour 24 on the outside 46 of the fan wheel 16.
  • the receiving contours 28 can be aligned with the upper side 42 and / or the lower side 44 of the motor fan device 10 or the fan device 12.
  • the respective receiving contour 24, as in FIG Fig. 10 shown have at least one, two or more planes 26 or planes of rotation 26 for receiving one, two or more balancing elements 28.
  • Fig. 10 In Fig.
  • a receiving contour 24 is provided on the inside 48 of the fan wheel 16, the receiving contour 24, for example in the form of a groove 30, being arranged on the underside 44 of the fan device 12 and forming a plane of rotation D, which is located at the lowest point, for example.
  • at least one or more balancing elements 28 are arranged in the groove 30.
  • Fig. 11 now shows a detail of a perspective view of an engine fan device 10 according to a ninth embodiment of the invention.
  • the respective receiving contour 24 is designed in the form of an opening 50, for example a circular opening 50.
  • a balancing element 28 in the form of a rivet element 52 is fastened in the opening 50.
  • the balancing element 28, here for example the rivet element 52 is framed from the outside by the fan geometry.
  • the respective opening 50 can have any shape as the receiving contour 24 or fastening contour, that is to say, for example, circular, oval and / or angular.
  • the receiving contours 24 or openings 50 are formed in at least one or more of the wing elements 14 of the fan device 12.
  • the receiving contours 24 can for example be arranged on the same radius around the axis of rotation 34 of the motor fan device 10 or the fan device 12, but at different heights, as in FIG Fig. 11 is indicated in order to form different levels 26.
  • the receiving contours 24 can, however, also be arranged on different radii around the axis of rotation 34 and, furthermore, in this case also at different heights and / or at the same height.
  • pin elements 56 or any other arbitrarily shaped balancing elements 28 can be provided, which can be fastened in a respective opening 50.
  • at least one, two or more receiving contours 24 in the form of openings 50 can be provided in at least one, two or more wing elements 14, which can be equipped with balancing elements 28.
  • the ninth embodiment can also be combined with the other embodiments, for example with the first or second embodiment, such as the Fig. 10 shows.
  • at least one, two or more receiving contours 24 in the form of grooves 30 are also provided on the fan device 12.
  • a groove 30 has, for example, two planes of rotation 26 in which balancing elements 28, for example in the form of balls 58, can be received.
  • Fig. 12 a section of a perspective view of a motor fan device 10 according to a tenth embodiment of the invention.
  • the tenth embodiment is comparable to the first and second embodiment.
  • One, two or more receiving contours 24 are provided, for example in the form of partially or completely circumferential grooves 30.
  • the in Fig. 12 The groove 30 shown has, for example, two planes 26 or planes of rotation 26.
  • the second, lower level 26 is designed in the form of several receptacles or depressions 32 in which balancing elements 28 can be received.
  • balancing elements 28 as in Fig. 12 and 13th is shown, on the one hand spherical balancing elements 58 are provided, which are clamped from the outside in the receptacle or the groove 30.
  • a mushroom-shaped element 54 can also be provided as the balancing element 28, which is likewise clamped from the outside in order to be fastened in the receiving contour 24.
  • the mushroom-shaped element 58 is, for example, inserted with its shaft section into the groove 30 and clamped in from the outside by the latter.
  • a cylinder element 56 can also be used as the balancing element 28, which is inserted into the groove 30 and clamped from the outside through the groove 30.
  • a cuboid element 60 or polygonal element can also be used as the balancing element 28 and inserted into the groove 30 and clamped there from the outside.
  • a spreading spring element 62 can also be used as a balancing element 28, for example. This is inserted into the groove 30 and clamped there from the outside.
  • a potting compound 64 can also be used as a balancing element 28, wherein the potting compound 64 can be encompassed all around by, for example, a receptacle for the groove 30.
  • the listed balancing elements 28 are only exemplary.
  • the balancing elements 28 have in common that they are held or enclosed at circumferential or at least two points by the special receiving contour 24 integrated in the fan device 12 from the outside by, for example, pretensioning and / or gluing. This applies to all embodiments of the invention.
  • the balancing elements 28 can be combined with one another as desired and, for example, have the same weight or a different weight, depending on the function and intended use.
  • FIG. 12 further shows a sectional view of the motor fan device 10 according to the first embodiment with a determination of a maximum unbalance compensation.
  • a receiving contour 24 is provided in the hub area 18 of the fan device 12.
  • two balancing elements 28 in the form of balls 58 are provided, each having a diameter of 10mm and on opposite sides
  • the motor fan device 10 contains a special receiving contour 24 or receiving contours 24 integrated in the fan device 12 these receiving contours 24 are fastened, for example, to metallic or metal-containing balancing weights 28.
  • the metal content of the balancing weights 28 is, for example, 25 to 100% by weight.
  • the balancing weights or balancing elements 28 alone generate a dynamic imbalance during the rotation about the fan rotation axis 34 of> 400 gmm 2 , as previously in the example of FIG Fig. 14 it was shown what serves to reduce the total dynamic unbalance of the fan.
  • the balancing weight or balancing element 28 is held or framed around the circumference or at least at two points by means of this special receiving contour 24, for example by pretensioning and / or gluing.
  • the dynamic imbalance of engine cooling fans 10 can for the first time be automatically balanced in a technically simple manner.
  • a method for automatically attaching balancing masses by pressing in or shooting in, for example, balls for static unbalance compensation can be adopted after adaptation for automated dynamic unbalance compensation.
  • glue heavy, for example metal-containing, casting compounds in these contours 24 and thereby to balance the dynamic imbalance of the fan 10.
  • balancing elements 28 can be used in the individual embodiments which are the same in weight, material and / or shape or at least two or more or all balancing elements 28 can differ in shape, material and / or weight. Furthermore, receiving contours 24 in the form of openings 50 can be provided not only on wing elements 14 of fan wheel 16 but also, for example, on fan wheel 16 itself and / or, for example, hub area 18 of fan device 12.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP21168497.2A 2008-09-08 2009-07-08 Ventilateur de refroidissement du moteur à compensation dynamique des déséquilibres Active EP3885582B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008041858A DE102008041858A1 (de) 2008-09-08 2008-09-08 Motorkühlungsgebläse mit dynamischem Unwuchtausgleich
EP09780316A EP2324251A1 (fr) 2008-09-08 2009-07-08 Soufflerie de refroidissement de moteur avec compensation de déséquilibre dynamique
PCT/EP2009/058669 WO2010025976A1 (fr) 2008-09-08 2009-07-08 Soufflerie de refroidissement de moteur avec compensation de déséquilibre dynamique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP09780316A Division EP2324251A1 (fr) 2008-09-08 2009-07-08 Soufflerie de refroidissement de moteur avec compensation de déséquilibre dynamique

Publications (2)

Publication Number Publication Date
EP3885582A1 true EP3885582A1 (fr) 2021-09-29
EP3885582B1 EP3885582B1 (fr) 2024-03-13

Family

ID=41035901

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09780316A Ceased EP2324251A1 (fr) 2008-09-08 2009-07-08 Soufflerie de refroidissement de moteur avec compensation de déséquilibre dynamique
EP21168497.2A Active EP3885582B1 (fr) 2008-09-08 2009-07-08 Ventilateur de refroidissement du moteur à compensation dynamique des déséquilibres

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09780316A Ceased EP2324251A1 (fr) 2008-09-08 2009-07-08 Soufflerie de refroidissement de moteur avec compensation de déséquilibre dynamique

Country Status (6)

Country Link
US (1) US8784058B2 (fr)
EP (2) EP2324251A1 (fr)
JP (1) JP2012502213A (fr)
CN (1) CN102144101A (fr)
DE (1) DE102008041858A1 (fr)
WO (1) WO2010025976A1 (fr)

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CN103573717B (zh) 2012-07-24 2018-06-12 德昌电机(深圳)有限公司 风扇及其叶轮
DE202012103554U1 (de) * 2012-09-18 2013-12-20 Ebm-Papst Mulfingen Gmbh & Co. Kg Laufrad mit Wuchtausgleich
JP6131022B2 (ja) 2012-10-30 2017-05-17 三菱重工業株式会社 インペラ及びこれを備えた回転機械
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CN104235064B (zh) * 2013-06-07 2018-01-26 台达电子工业股份有限公司 风扇及其叶轮
DE102013106379A1 (de) * 2013-06-19 2014-12-24 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüfterrad mit einer Mehrzahl von Lüfterflügeln
CN109773635A (zh) * 2013-07-12 2019-05-21 南京德朔实业有限公司 手持式砂光机
DE102013015835A1 (de) * 2013-09-24 2015-04-16 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Lüfter
TWD160897S (zh) * 2013-10-09 2014-06-01 訊凱國際股份有限公司 散熱風扇(一)
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TWI601884B (zh) * 2016-02-22 2017-10-11 佛山市建準電子有限公司 可調整配重之扇輪及風扇
US11027595B2 (en) 2016-10-13 2021-06-08 Dometic Sweden Ab Roof fan assembly
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CN106593889A (zh) * 2016-12-29 2017-04-26 镇江福泰克流体技术有限公司 一种适用于中小流量工况的离心泵
CN108005964B (zh) * 2018-01-15 2019-11-08 奇鋐科技股份有限公司 风扇平衡结构
DE102018127555A1 (de) * 2018-11-05 2020-05-07 Elektrosil Gmbh Rotor für einen Lüfter
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Also Published As

Publication number Publication date
US8784058B2 (en) 2014-07-22
US20110236211A1 (en) 2011-09-29
CN102144101A (zh) 2011-08-03
EP3885582B1 (fr) 2024-03-13
EP2324251A1 (fr) 2011-05-25
DE102008041858A1 (de) 2010-03-11
WO2010025976A1 (fr) 2010-03-11
JP2012502213A (ja) 2012-01-26

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