EP1438512B1 - Dispositif a appliquer dans un ensemble ventilateur - Google Patents

Dispositif a appliquer dans un ensemble ventilateur Download PDF

Info

Publication number
EP1438512B1
EP1438512B1 EP02772345A EP02772345A EP1438512B1 EP 1438512 B1 EP1438512 B1 EP 1438512B1 EP 02772345 A EP02772345 A EP 02772345A EP 02772345 A EP02772345 A EP 02772345A EP 1438512 B1 EP1438512 B1 EP 1438512B1
Authority
EP
European Patent Office
Prior art keywords
seal according
approximately
fan
sealing ring
housing
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.)
Expired - Lifetime
Application number
EP02772345A
Other languages
German (de)
English (en)
Other versions
EP1438512A1 (fr
Inventor
Thomas Seith
Diethard Görig
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1438512A1 publication Critical patent/EP1438512A1/fr
Application granted granted Critical
Publication of EP1438512B1 publication Critical patent/EP1438512B1/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel

Definitions

  • the present invention relates to a seal for use in a blower assembly, in particular for use in a blower arrangement for a domestic appliance and a blower arrangement.
  • blower arrangements with an electric motor and a non-rotatably connected to a motor output shaft centrifugal impeller are known.
  • the centrifugal impeller is u.a. surrounded by a fan housing to form a directed air flow, which widens in a truncated cone from an inflow opening to the motor drive.
  • a seal for substantially filling an air gap between the Zentrifugalgebläserad and the inside of the fan housing is arranged to reduce
  • a seal according to the invention therefore provides that the seal is designed as a sealing ring and the sealing ring is connected out of the blower housing with a buffer member which sealingly surrounds the inflow opening.
  • a sealing ring is thus further arranged in the region of an inlet opening of the fan arrangement, which serves for sealing an air gap between a centrifugal fan wheel and an inner side of a fan housing.
  • this sealing ring is now formed extending out of the blower housing and connected to a buffer member which encloses the inflow opening as a bearing element. It is therefore according to the invention only a part available, which is limited to the region of the inlet opening of the fan assembly.
  • an outer contour of the buffer part of an inner contour of a sealed housing opening is adapted.
  • the buffer part also fulfills the tasks of fixing and sealing the fan assembly in a predetermined opening in addition to the task of a one-sided mounting of the fan assembly.
  • the material of the sealing ring is suitably formed in a mounting position on the blower housing for grinding by a centrifugal impeller.
  • a centrifugal impeller for details of grinding at this point, reference is made to the disclosure of DE 19717 154.
  • the material of the buffer part is elastic. So it is well suited for the above-mentioned tasks of storage, fixation and sealing.
  • the buffer member must not be applied in this form as a sealant that cures only on site on the blower housing.
  • the buffer part is tapered conically outside the inlet opening.
  • the insertion of the fan assembly is facilitated in a recording.
  • the sealing ring and the buffer member are formed as a one-piece body and also einstoffig. This significantly reduces manufacturing and assembly costs. Also simplifies installation, as will be described below with reference to an embodiment with reference to the drawings. Accordingly, the one-piece combination of sealing ring and buffer member is hereinafter referred to only as a seal body.
  • the material of the sealing body preferably has a hardness of about 40 to about 50 Shore. Furthermore, it has a strength of about 10 to about 20 N / mm 2 and / or an elasticity of about 40 to about 60% and preferably allows an elongation of about 150 to about 300%.
  • the material of the sealing body should be selected such that the values mentioned above remain maintained even after aging under the operating conditions in a floor care appliance with continuous vibration load and elevated temperatures.
  • the buffer part is provided with at least one recess for setting an elasticity deviating from the sealing ring.
  • These recesses are preferably provided in the form of approximately equidistant blind holes in the buffer member.
  • a seal according to the invention makes it easier to accommodate a fan assembly even in the cramped environment and the difficult installation conditions in the interior of a floor care appliance.
  • a new seal is created between the blower housing or a blower hood and the centrifugal blower wheel with an optimization of the blower power data, in particular by reducing the losses occurring.
  • the invention explained below with reference to an embodiment is particularly characterized by the fact that no separate components are required for the inner and outer sealing.
  • an individually adjustable compensation in the production of always occurring tolerances between fixed and rotating fan parts is created.
  • the storage and simultaneous fixation of a seal according to the invention by the buffer member also achieves a significant noise reduction. In this case, a choice of material in a wide range of parameters is possible, in particular the proposed design measures allow a largely independent adjustment of the spring stiffness of the sealing ring and the buffer member.
  • FIG. 1 is a sectional view taken along a longitudinal axis of a vacuum cleaner housing SG using a seal 1 according to the invention.
  • the vacuum cleaner housing SG is subdivided into an aspirated airflow L into a dust chamber SK, which is separated from a motor space MR by a partition wall TW with one or more filters F.
  • a Dunleittrichter LT is provided as a space-saving and flow-optimized adaptation of the air flow L for transfer into a blower G.
  • FIG. 2 In the enlarged detail of Figure 2, an area around a motor M in the engine compartment MR is shown. Arrows P1 and P2 identify two bearing points of the motor M in the engine compartment MR or in the air guide funnel LT of the partition wall TW and an opposite rear wall of the engine compartment MR. Here, on average, the shape of a seal according to the invention or of a sealing body 1 can also be seen, which serves as one of the two bearing points.
  • the sealing body 1 is arranged in the region of an inflow opening E by clamping on an edge region of a blower housing GG.
  • the seal body 1 forms a sealing ring 2 in the inflow opening E.
  • the seal body 1 then extends out of the inflow opening E and encloses the inflow opening E radially to form a buffer part 3.
  • the seal body 1 is closed to the dust chamber and adapted to an outer circumference U an inner diameter in the connection region of the Lucasleittrichters LT adapted ,
  • the blower with the engine M fixedly mounted thereon is sealingly arranged with the air guide funnel LT and thus on the partition wall TW to the dust space SR.
  • the seal body 1 shown in the figures of the drawing serves at the same time as a sealing ring 2 or as a seal between the blower housing GG and the centrifugal fan LR and also as a sealing mounting of the blower housing GG to the partition TW.
  • the buffer part 3 is used to compensate for tolerances and also reduces the noise that occurs during operation. In addition, vibrations and an oscillation tendency of the arrangement of blower G and motor M are reduced by a vote of a spring stiffness of the material in the region of the buffer part 3.
  • FIGS. 3 to 5 The structural measures taken to adjust and tune the spring stiffness of the buffer part 3 are shown in detail in FIGS. 3 to 5.
  • a radially extending recess 4 is provided for receiving the edge region of the blower housing GG at the inflow opening E.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Motor Or Generator Cooling System (AREA)

Claims (14)

  1. Joint pour une utilisation dans un ensemble ventilateur, qui est conçu en particulier pour l'entraînement direct par un moteur électrique, une roue de ventilateur centrifuge (LR) étant reliée dans l'ensemble ventilateur à un arbre d'entraînement de façon fixe en rotation, la roue de ventilateur centrifuge (LR) étant entourée entre autres par un boîtier de ventilateur (GG) pour la réalisation d'un flux d'air orienté, une bague d'étanchéité (2) étant disposée dans une ouverture d'entrée pour le remplissage en grande partie d'une fente d'air entre une roue de ventilateur centrifuge et le côté intérieur du boîtier de ventilateur, caractérisé en ce que la bague d'étanchéité (2) est reliée à la sortie du boîtier de ventilateur (GG) avec une partie tampon (3) qui entoure de façon étanche l'ouverture d'entrée (E).
  2. Joint selon la revendication 1, caractérisé en ce qu'un contour extérieur de la partie tampon (3) est adapté à un contour intérieur d'une ouverture de boîtier à rendre étanche.
  3. Joint selon l'une quelconque ou deux des revendications précédentes, caractérisé en ce que la bague d'étanchéité (2) est à base d'un matériau qui est approprié pour le rodage par la roue de ventilateur centrifuge (LR) dans une position de montage sur le boîtier de ventilateur (GG).
  4. Joint selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le matériau de la partie tampon (3) est élastique.
  5. Joint selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la bague d'étanchéité (2) et la partie tampon (3) forment un corps d'étanchéité (1) conçu dans une seule substance.
  6. Joint selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la partie tampon (3) est réalisée de façon rétrécie en forme de cône à l'extérieur de l'ouverture d'entrée (E).
  7. Joint selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le matériau du corps d'étanchéité (1) présente une dureté d'environ 40 à environ 50 Shore.
  8. Joint selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le matériau du corps d'étanchéité (1) présente une solidité d'environ 10 à environ 20 N/mm2.
  9. Joint selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le matériau du corps d'étanchéité (1) présente une élasticité d'environ 40 à environ 60 %.
  10. Joint selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le matériau du corps d'étanchéité (1) autorise un allongement d'environ 150 à environ 300 %.
  11. Joint selon l'une quelconque des revendications 7 à 10, caractérisé en ce que le matériau du corps d'étanchéité (1) respecte les valeurs citées dans les revendications 7 à 10, même après le vieillissement dans les conditions de service dans un appareil d'entretien de sol dans le cas d'une charge d'oscillation continue et de températures élevées.
  12. Joint selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la partie tampon (3) est dotée d'au moins un évidement (5) pour le réglage d'une intensité différente de la bague d'étanchéité (2).
  13. Joint selon la revendication 12, caractérisé en ce que plusieurs évidements (5) sont prévus sous la forme de trous borgnes à peu près équidistants.
  14. Ensemble ventilateur, caractérisé en ce qu'il est construit avec l'utilisation d'un joint selon l'une quelconque des revendications précédentes.
EP02772345A 2001-10-01 2002-09-24 Dispositif a appliquer dans un ensemble ventilateur Expired - Lifetime EP1438512B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10148510 2001-10-01
DE10148510A DE10148510C1 (de) 2001-10-01 2001-10-01 Dichtung zum Einsatz in einer Gebläseanordnung
PCT/EP2002/010754 WO2003029657A1 (fr) 2001-10-01 2002-09-24 Dispositif a appliquer dans un ensemble ventilateur

Publications (2)

Publication Number Publication Date
EP1438512A1 EP1438512A1 (fr) 2004-07-21
EP1438512B1 true EP1438512B1 (fr) 2007-03-21

Family

ID=7701064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02772345A Expired - Lifetime EP1438512B1 (fr) 2001-10-01 2002-09-24 Dispositif a appliquer dans un ensemble ventilateur

Country Status (10)

Country Link
US (2) US7101148B2 (fr)
EP (1) EP1438512B1 (fr)
CN (1) CN1561437B (fr)
AT (1) ATE357599T1 (fr)
CZ (1) CZ2004444A3 (fr)
DE (2) DE10148510C1 (fr)
ES (1) ES2283599T3 (fr)
HU (1) HU229110B1 (fr)
PL (1) PL205050B1 (fr)
WO (1) WO2003029657A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10148510C1 (de) * 2001-10-01 2003-06-18 Bsh Bosch Siemens Hausgeraete Dichtung zum Einsatz in einer Gebläseanordnung
CN1540476B (zh) * 2003-04-25 2010-05-26 建准电机工业股份有限公司 具冲压成型壳体的散热扇外壳
DE10329336A1 (de) * 2003-06-30 2005-01-20 Friedrich Boysen Gmbh & Co. Kg Klappenventil
DE10336827A1 (de) * 2003-08-11 2005-03-10 Bsh Bosch Siemens Hausgeraete Staubsauger mit einer Gebläsekapsel
DE102012211250A1 (de) 2012-06-29 2014-01-02 BSH Bosch und Siemens Hausgeräte GmbH Staubsaugergebläse und Staubsauger mit einem Staubsaugergebläse
US9945390B2 (en) 2014-07-31 2018-04-17 Regal Beloit America, Inc. Centrifugal blower and method of assembling the same
JP6450928B2 (ja) * 2014-10-17 2019-01-16 パナソニックＩｐマネジメント株式会社 電動送風機及びそれを用いた電気掃除機
US10174768B2 (en) 2015-09-08 2019-01-08 Regal Beloit America, Inc. Centrifugal blower and method of assembling the same
CN105697409A (zh) * 2016-03-23 2016-06-22 湖南巴陵炉窑节能股份有限公司 一种防内泄漏离心式通风机
FR3089108B1 (fr) * 2018-11-30 2021-11-05 Seb Sa Dispositif d’aspiration pour aspirateur domestique équipé d’un élément d’amortissement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109409A1 (de) * 1971-02-27 1972-09-07 Luft U Kaeltetechnik Veb K Anordnung zur Verminderung der Spaltverluste bei Lüftern mit schwingend gelagertem Laufrad
JP2987286B2 (ja) * 1994-01-12 1999-12-06 株式会社日立製作所 電動送風機
US5548867A (en) * 1994-03-03 1996-08-27 Samsung Electronics Co., Ltd. Vibroisolating apparatus of vacuum cleaner
DE19717154A1 (de) * 1997-04-23 1998-10-29 Bosch Siemens Hausgeraete Gebläseanordnung
CN2303100Y (zh) * 1997-07-25 1999-01-06 东北大学 双侧无油涡旋真空泵
DE19855905B4 (de) * 1998-12-03 2013-02-21 BSH Bosch und Siemens Hausgeräte GmbH Gebläseanordnung
DE19919844A1 (de) * 1999-04-30 2000-11-02 Kaercher Gmbh & Co Alfred Bodenreinigungsgerät
US6439843B1 (en) * 2000-11-16 2002-08-27 Ametek, Inc. Motor/fan assembly having a radial diffuser bypass
DE10148510C1 (de) * 2001-10-01 2003-06-18 Bsh Bosch Siemens Hausgeraete Dichtung zum Einsatz in einer Gebläseanordnung

Also Published As

Publication number Publication date
US20070003409A1 (en) 2007-01-04
US7101148B2 (en) 2006-09-05
HU229110B1 (en) 2013-08-28
ATE357599T1 (de) 2007-04-15
HUP0401755A2 (en) 2004-11-29
US20050074327A1 (en) 2005-04-07
CN1561437B (zh) 2010-10-06
CN1561437A (zh) 2005-01-05
WO2003029657A1 (fr) 2003-04-10
PL205050B1 (pl) 2010-03-31
EP1438512A1 (fr) 2004-07-21
US7473071B2 (en) 2009-01-06
PL367489A1 (en) 2005-02-21
DE50209796D1 (de) 2007-05-03
ES2283599T3 (es) 2007-11-01
DE10148510C1 (de) 2003-06-18
CZ2004444A3 (cs) 2004-12-15

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