EP0182145B2 - Roue de ventilateur de matière synthétique en une pièce - Google Patents

Roue de ventilateur de matière synthétique en une pièce Download PDF

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Publication number
EP0182145B2
EP0182145B2 EP85113621A EP85113621A EP0182145B2 EP 0182145 B2 EP0182145 B2 EP 0182145B2 EP 85113621 A EP85113621 A EP 85113621A EP 85113621 A EP85113621 A EP 85113621A EP 0182145 B2 EP0182145 B2 EP 0182145B2
Authority
EP
European Patent Office
Prior art keywords
hub
fan wheel
ring
radial fan
piece
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
EP85113621A
Other languages
German (de)
English (en)
Other versions
EP0182145A1 (fr
EP0182145B1 (fr
Inventor
Gerhard Reichert
Friedrich Riedel
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6249954&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0182145(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to AT85113621T priority Critical patent/ATE50836T1/de
Publication of EP0182145A1 publication Critical patent/EP0182145A1/fr
Application granted granted Critical
Publication of EP0182145B1 publication Critical patent/EP0182145B1/fr
Publication of EP0182145B2 publication Critical patent/EP0182145B2/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
    • F04D29/26—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

Definitions

  • the invention relates to a one-piece plastic radial fan wheel according to the preamble of claim 1; Such a fan wheel is known from DE-C2-29 39 385.
  • fan wheels are driven by small DC motors. These motors are permanently magnetically excited on the stator side; An armature winding is accommodated in the rotor in open slots.
  • the output torque pulsates per revolution with the number of slots or a multiple thereof (slot frequency).
  • slot frequency With a fan wheel rigidly mounted on the motor drive shaft, this pulsation of the output torque leads to the fact that the wheel tangent performs a slight relative movement in rotation with the frequency of the grooving frequency.
  • this grooving frequency finds a resonance surface in the tangential wheel direction, e.g. in the form of the blade ring of the radial fan, a disturbing frequency tone can be heard at a certain number of revolutions.
  • this excitation can be kept small, but not completely avoided.
  • a radial fan wheel is also known, in which the transmission of undesirable imbalances of the blade ring on the drive shaft and the associated noise-related greater uneven running should be avoided by such elastic intermediate parts between the hub comprising the drive shaft and the blade ring , which compensate for the radial displacement of the blade ring due to unbalance loads due to their own deformation and can thus keep away from the drive shaft and its bearings; for this purpose, in the case of a one-piece plastic part design, the intermediate parts are arranged as essentially tangential partial arc pieces between the hub and the blade ring.
  • the invention has for its object to arrange the spring bars acting as damping elements in the radial fan wheel with simple manufacturing means that with guaranteed low noise, consistently good running properties can be achieved even with long service lives.
  • the transmission of tangential vibration excitation on the motor side to the blade ring can be prevented with certainty and nevertheless good running properties can be guaranteed in a technically simple manner over long operating times, since additional centrifugal loads, e.g. due to dust or dirt deposits, do not lead to an unbalance increase due to radial or axial softness or compliance of the connecting piece between the hub and the blade ring.
  • the fan wheel is radially and axially stable and contains no long, arched, individual springs between the hub and the blade ring, no changes in running and unbalance occur in the heating and air conditioning systems of motor vehicles in continuous operation; at the same time, resonance transmissions between the motor drive shaft and the blade ring are nevertheless avoided, and at the same time the intermediate piece between the hub and the blade ring can be designed without being influenced by the aforementioned problems or solutions with regard to its design.
  • the tangential blade ring natural frequencies are between approximately 200 and 600 Hz.
  • the tangential natural wheel frequency must often be less than 200 Hz, i.e. the intermediate webs must be deeply matched to the wheel mass or appear soft.
  • the axial length of the spring bars is smaller than the axial length of a hub ring.
  • the axial length of the spring bars is advantageously mutually narrowed and the spring bars are alternately axially offset in the circumferential direction
  • a closed, low-swirl intermediate piece will be provided between the outer hub ring and the blade ring. If the intake cross-section is too narrowly narrowed on one side for the engine in a double-flow fan wheel design, the intake cross-section for the engine side can advantageously be opened via openings in the intermediate piece.
  • At least one driver stop is provided on the inner hub ring and is assigned to a spring bar; this can prevent excessive torsional loads on the spring bars.
  • the two-flow plastic radial fan wheel shown in simplified form in FIG. 1, comprises the drive shaft 4 of a motor 17 with a two-part hub.
  • the hub has an inner hub ring 3 and an outer hub ring 1 arranged concentrically at a radial distance from it.
  • Spring bars 2 establish a connection between the outer hub ring 1 and the inner hub ring 3.
  • At the outer hub ring 1 is an intermediate piece 5 with openings 8, which extends to the blade ring with the wheel blades 6 and 7.
  • the thickness s2 of the spring bars 2 cannot fall below a minimum thickness. If the frequency tuning requires a softer spring, this can be done by reducing the axial length 12 or 12 of the spring bars 2 (FIG. 4, 5).
  • FIG. 3 shows an axial top view of the spring bars 2 or 2a, which are alternately axially offset over the circumference, the axial length of which can be seen from the sectional views according to FIGS. 4, 5; this results in a particularly simple manner in a soft torsion spring with a radially and axially stable fan wheel.
  • driver stops are designated on both sides of a spring bar, which serve as protection against excessive torsional loads on the spring bars in the event of start-up blocking impacts.

Landscapes

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

Claims (6)

  1. Roue de ventilateur radial en matière plastique et en une pièce, en particulier pour la soufflante d'une installation de chauffage et de conditionnement d'air dans un véhicule automobile, comprenant un moyeu entourant un arbre d'entraînement (4) et une couronne d'aubes (6 ou 7) maintenue radialement à distance du moyeu par une pièce intermédiaire (5) et par des entretoises élastiques (2) agissant comme un faisceau de ressorts montés en parallèle, caractérisée en ce que le moyeu est composé d'un anneau intérieur (3) et d'un anneau extérieur (1) qui est disposé concentriquement autour de l'anneau intérieur et que les entretoises élastiques (2), s'étendant seulement radialement, sont prévues comme des éléments de liaison radialement et axialement stables entre l'anneau intérieur (3) et l'anneau extérieur (1) du moyeu.
  2. Roue de ventilateur radial selon la revendication 1, caractérisée en ce que la longueur axiale des entretoises élastiques (2) est plus petite que la longueur axiale d'un anneau de moyeu (1 ou 3).
  3. Roue de ventilateur radial selon la revendication 2, caractérisée en ce que les entretoises élastiques (2) sont alternativement décalées axialement en direction circonférentielle.
  4. Roue de ventilateur radial comprenant une partie intermédiaire (5) reliant le moyeu à la couronne d'aubes selon une des revendications 1 à 3, caractérisée en ce que la pièce intermédiaire (5) est fermée sur elle-même.
  5. Roue de ventilateur radial comprenant une partie intermédiaire (5) reliant le moyeu à la couronne d'aubes, selon une des revendications 1 à 3, caractérisée en ce que la pièce intermédiaire (5) est pourvue d'ajours (8).
  6. Roue de ventilateur radial selon une des revendications 1 à 5, caractérisée en ce que l'anneau intérieur (3) du moyeu présente au moins une butée d'entraînement (10) associée à une entretoise élastique (2).
EP85113621A 1984-11-09 1985-10-25 Roue de ventilateur de matière synthétique en une pièce Expired - Lifetime EP0182145B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85113621T ATE50836T1 (de) 1984-11-09 1985-10-25 Einstueckiges kunststoff-luefterrad.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3441077 1984-11-09
DE3441077 1984-11-09

Publications (3)

Publication Number Publication Date
EP0182145A1 EP0182145A1 (fr) 1986-05-28
EP0182145B1 EP0182145B1 (fr) 1990-03-07
EP0182145B2 true EP0182145B2 (fr) 1994-03-09

Family

ID=6249954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113621A Expired - Lifetime EP0182145B2 (fr) 1984-11-09 1985-10-25 Roue de ventilateur de matière synthétique en une pièce

Country Status (5)

Country Link
US (1) US4639193A (fr)
EP (1) EP0182145B2 (fr)
JP (1) JPS61116097A (fr)
AT (1) ATE50836T1 (fr)
DE (1) DE3576391D1 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4806081A (en) * 1986-11-10 1989-02-21 Papst-Motoren Gmbh And Company Kg Miniature axial fan
USRE34456E (en) * 1985-10-08 1993-11-23 Papst Motoren Miniature axial fan
GB2185074B (en) * 1985-11-08 1990-12-19 Papst Motoren Gmbh & Co Kg Fan
US4815550A (en) * 1987-08-21 1989-03-28 Clark Equipment Company Engine cooling system for skid steer loaders
JPH05256299A (ja) * 1992-03-13 1993-10-05 Toshiba Corp 送風機
KR950704630A (ko) * 1992-12-23 1995-11-20 스테펜 슈니버거 관형 엘라스토머 댐퍼(tubular elastomer damper)
US5913659A (en) * 1993-11-22 1999-06-22 United Technologies Corporation Apparatus and method for adjusting rotor blade tracking
DE19531160A1 (de) * 1995-08-24 1997-02-27 Behr Gmbh & Co Lüfterrad für ein Radialgebläse
US5814908A (en) * 1996-04-30 1998-09-29 Siemens Electric Limited Blower wheel with axial inlet for ventilation
DE29706216U1 (de) * 1997-04-08 1998-08-06 ebm Werke GmbH & Co., 74673 Mulfingen Anordnung zur schwingungsisolierenden Aufhängung eines Elektromotors
US6345956B1 (en) 1998-07-14 2002-02-12 Delta Electronics, Inc. Impeller of a blower having air-guiding ribs with geometrical configurations
DE19907910C2 (de) * 1999-02-24 2003-08-07 Valeo Klimasysteme Gmbh Lüfterrad
DE19910813B4 (de) * 1999-03-11 2004-07-15 Emu Unterwasserpumpen Gmbh Strömungsmaschinenrad
US6709229B1 (en) * 2002-05-07 2004-03-23 Bill Lee Bi-directional incoming air flow fan
TWI281847B (en) * 2004-05-07 2007-05-21 Delta Electronics Inc Fan
US8202055B2 (en) * 2004-05-07 2012-06-19 Delta Electronics, Inc. Fan and impeller
TWI318730B (en) * 2005-05-27 2009-12-21 Delta Electronics Inc Blower and impeller structure thereof
DE102006038655A1 (de) * 2006-08-18 2008-02-21 Behr Gmbh & Co. Kg Axiallüfter mit elektrischem Antrieb
DE102008062432A1 (de) 2008-12-17 2010-07-15 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Elektromotorischer Antrieb, insbesondere Gebläseantrieb
DE102010028099A1 (de) * 2010-04-22 2011-10-27 Behr Gmbh & Co. Kg Axiallüfter
US8881396B2 (en) 2011-02-07 2014-11-11 Revcor, Inc. Method of manufacturing a fan assembly
US9995316B2 (en) * 2014-03-11 2018-06-12 Revcor, Inc. Blower assembly and method
CN108869337B (zh) 2014-03-24 2021-03-30 台达电子工业股份有限公司 风扇
DE102014009146A1 (de) * 2014-06-20 2015-12-24 Ziehl-Abegg Se Elektromotor mit einem Rotor, einem Stator und einem Elektronikgehäuse sowie Lüfterrad für einen Elektromotor
US11274677B2 (en) 2018-10-25 2022-03-15 Revcor, Inc. Blower assembly
CN111550436B (zh) * 2019-02-12 2022-08-12 日本电产株式会社 叶轮和具有该叶轮的离心风扇

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB117756A (fr) * 1900-01-01
US795938A (en) * 1903-08-17 1905-08-01 James M Seymour Jr Blower or fan.
US1827770A (en) * 1925-02-06 1931-10-20 Bbc Brown Boveri & Cie Rotary fan
US2047501A (en) * 1934-05-03 1936-07-14 Spontan Ab Steam or gas turbine
US2212555A (en) * 1938-01-20 1940-08-27 Heinze Electric Company Fan construction
US2442441A (en) * 1944-05-18 1948-06-01 Edward A Shellberg Air deflector
US2557201A (en) * 1948-07-26 1951-06-19 Punt Simon Centrifugal fan
FR1300199A (fr) * 1961-06-17 1962-08-03 Turbine de pompe centrifuge, notamment pour petites pompes
US3385516A (en) * 1966-03-31 1968-05-28 Gen Electric Fan construction
FR2181111A5 (fr) * 1972-04-17 1973-11-30 Mecanique Ind Int
JPS5311609B2 (fr) * 1974-01-12 1978-04-22
JPS5240808A (en) * 1975-09-26 1977-03-30 Toshiba Corp Fun made of plastic
US4150919A (en) * 1977-06-10 1979-04-24 Wallace Murray Corporation Radiator cooling fan construction
DD137612B1 (de) * 1978-07-10 1980-06-25 Werner Harms Radiallaufrad
SE443408B (sv) * 1979-09-28 1986-02-24 Sueddeutsche Kuehler Behr Radialflekt for verme- eller luftkonditioneringsanleggningar i fordon
DE2939385C2 (de) * 1979-09-28 1982-11-25 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Radialgebläse, insbesondere für Heiz- oder Klimaanlagen von Fahrzeugen

Also Published As

Publication number Publication date
EP0182145A1 (fr) 1986-05-28
US4639193A (en) 1987-01-27
JPS61116097A (ja) 1986-06-03
DE3576391D1 (de) 1990-04-12
EP0182145B1 (fr) 1990-03-07
ATE50836T1 (de) 1990-03-15

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