EP0181549A1 - Roue pour ventilateur - Google Patents

Roue pour ventilateur Download PDF

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Publication number
EP0181549A1
EP0181549A1 EP85113622A EP85113622A EP0181549A1 EP 0181549 A1 EP0181549 A1 EP 0181549A1 EP 85113622 A EP85113622 A EP 85113622A EP 85113622 A EP85113622 A EP 85113622A EP 0181549 A1 EP0181549 A1 EP 0181549A1
Authority
EP
European Patent Office
Prior art keywords
fan
wheel
hub
springs
base
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.)
Withdrawn
Application number
EP85113622A
Other languages
German (de)
English (en)
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
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0181549A1 publication Critical patent/EP0181549A1/fr
Withdrawn legal-status Critical Current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
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts

Definitions

  • the invention relates to a fan wheel with a hub comprising a drive shaft, which is connected to a fan ring with fan blades via a wheel base.
  • fan wheels are driven by small DC motors and used for the ventilation of heating and air conditioning devices.
  • the electric motors are permanently magnetically excited via the stator.
  • the winding is accommodated in open slots in the rotor.
  • the output torque pulsates per revolution with the number of slots or a multiple thereof, i.e. Rotation x slot number factor results in a slot frequency. This is superimposed on the engine torque output and results in pulsations per revolution.
  • the object of the invention is to arrange a damping element between the fan wheel and the electric drive motor with simple means, which has consistently good running properties even after longer operating times. In particular, continuous operation at higher temperatures should also be possible.
  • This object is achieved in that a fixed seat arranged on the drive shaft to the side of the hub is connected by means of springs to the driving cams of the wheel base.
  • tangential motor excitation is not transmitted to the fan blade.
  • the fan wheel runs tangentially and axially stable. Centrifugal forces cannot increase the unbalance.
  • the tangential blade natural frequencies are between 200 and 600 Hz.
  • the tangential natural wheel frequency must often be less than 200 Hz, i.e. the intermediate damping spring must be deeply matched to the wheel mass or appear soft.
  • At least the springs should consist of metal. There should be at least one pair of springs.
  • a driver stop for example a nose (12), can also be provided.
  • Fan wheels according to the invention have proven themselves particularly in heating and air conditioning systems of motor vehicles in continuous operation. There are no changes in running and unbalance, since the wheel is radially and axially stable and does not consist of long, bent individual springs that are subject to one-sided aging delay due to the plastic, which occurs particularly with humidity and temperature fluctuations.
  • Figure 1 shows in section a fan with a wheel base 1 and the hub 2, which is fitted with a sliding fit on the motor shaft 6.
  • 3 is a fixed seat ring which is pressed firmly onto the motor shaft 6.
  • At least one or more pairs of springs 5 matched to the wheel are arranged on this ring.
  • the wheel is plugged with the hub 2 onto the motor shaft 6 up to the fixed ring 3.
  • the axial fixing of the other side is accomplished with the clamping disc 4.
  • the springs 5 must be brought between the driver cams 7. This creates a soft, non-positive connection between the motor shaft and the wheel.
  • the wheel blades 8 are arranged on the wheel base 1. If the intake cross-section is narrowed too much by the engine in the case of a double-flow wheel, the cross-section can still be adapted with openings 9 in the wheel base 1.
  • FIG. 2 shows an embodiment according to FIG. 1 with a limit stop 11.
  • a limit stop 11 Such an embodiment has proven itself for high torsional moments, e.g. Start-up blocking impacts, particularly proven When blocked, the nose 12 abuts the stops 11 and prevents the soft springs from over-turning.
  • FIG. 3 shows a fitted seat ring 3 on the motor shaft 6 with the springs 5 arranged.
  • the springs are held between the driver knobs with a preload, as in an embodiment according to FIG.
  • FIG. 4 shows a different type of limit stop.
  • the limit stops 11 are arranged so as to protrude from the wheel base.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP85113622A 1984-11-09 1985-10-25 Roue pour ventilateur Withdrawn EP0181549A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3441068 1984-11-09
DE3441068 1984-11-09

Publications (1)

Publication Number Publication Date
EP0181549A1 true EP0181549A1 (fr) 1986-05-21

Family

ID=6249953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113622A Withdrawn EP0181549A1 (fr) 1984-11-09 1985-10-25 Roue pour ventilateur

Country Status (2)

Country Link
EP (1) EP0181549A1 (fr)
JP (1) JPS61116098A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2756021A1 (fr) * 1996-11-19 1998-05-22 Valeo Systemes Dessuyage Motoventilateur a montage d'helice simplifie
DE102006038655A1 (de) * 2006-08-18 2008-02-21 Behr Gmbh & Co. Kg Axiallüfter mit elektrischem Antrieb
EP2243962A3 (fr) * 2009-04-09 2013-05-15 Robert Bosch GmbH Ensemble de ventilateur de moteur
CN105545772A (zh) * 2016-02-01 2016-05-04 温州市飞扬电气有限公司 一种鼓风机的风轮、电机连接结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005098272A (ja) * 2003-09-25 2005-04-14 Royal Electric Co Ltd 遠心ファン

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005497A (en) * 1957-07-22 1961-10-24 Torrington Mfg Co Fan blade and hub assembly
FR1312067A (fr) * 1961-11-13 1962-12-14 Electrolux Ab Dispositif d'accouplement notamment pour ventilateur
NL6504730A (fr) * 1965-04-13 1966-10-14
FR1463515A (fr) * 1965-01-13 1966-12-23 Rotron Mfg Company Attache pour relier deux éléments et les maintenir assemblés à une force prédéterminée
DE1601441A1 (de) * 1967-01-31 1969-11-27 Tatra Np Elastische Kupplung zum Kuehlgeblaese fuer luftgekuehlte Verbrennungsmotoren
US4245957A (en) * 1978-11-17 1981-01-20 General Motors Corporation Bladed fan assembly and compression loaded connector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5247568B2 (fr) * 1974-03-25 1977-12-03
JPS5486806A (en) * 1977-12-21 1979-07-10 Kubota Ltd Automatic controller for pressure in automatic water sypply tank

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005497A (en) * 1957-07-22 1961-10-24 Torrington Mfg Co Fan blade and hub assembly
FR1312067A (fr) * 1961-11-13 1962-12-14 Electrolux Ab Dispositif d'accouplement notamment pour ventilateur
FR1463515A (fr) * 1965-01-13 1966-12-23 Rotron Mfg Company Attache pour relier deux éléments et les maintenir assemblés à une force prédéterminée
NL6504730A (fr) * 1965-04-13 1966-10-14
DE1601441A1 (de) * 1967-01-31 1969-11-27 Tatra Np Elastische Kupplung zum Kuehlgeblaese fuer luftgekuehlte Verbrennungsmotoren
US4245957A (en) * 1978-11-17 1981-01-20 General Motors Corporation Bladed fan assembly and compression loaded connector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2756021A1 (fr) * 1996-11-19 1998-05-22 Valeo Systemes Dessuyage Motoventilateur a montage d'helice simplifie
DE102006038655A1 (de) * 2006-08-18 2008-02-21 Behr Gmbh & Co. Kg Axiallüfter mit elektrischem Antrieb
EP2243962A3 (fr) * 2009-04-09 2013-05-15 Robert Bosch GmbH Ensemble de ventilateur de moteur
CN105545772A (zh) * 2016-02-01 2016-05-04 温州市飞扬电气有限公司 一种鼓风机的风轮、电机连接结构

Also Published As

Publication number Publication date
JPS61116098A (ja) 1986-06-03

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19861124

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Inventor name: REICHERT, GERHARD

Inventor name: RIEDEL, FRIEDRICH