EP0964161A2 - Roue ventilateur - Google Patents

Roue ventilateur Download PDF

Info

Publication number
EP0964161A2
EP0964161A2 EP99109194A EP99109194A EP0964161A2 EP 0964161 A2 EP0964161 A2 EP 0964161A2 EP 99109194 A EP99109194 A EP 99109194A EP 99109194 A EP99109194 A EP 99109194A EP 0964161 A2 EP0964161 A2 EP 0964161A2
Authority
EP
European Patent Office
Prior art keywords
cap
disc wheel
fan
border
integral
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Withdrawn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
EP99109194A
Other languages
German (de)
English (en)
Other versions
EP0964161A3 (fr
Inventor
Alberto Petrone
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.)
Bitron SpA
Original Assignee
Bitron SpA
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 Bitron SpA filed Critical Bitron SpA
Publication of EP0964161A2 publication Critical patent/EP0964161A2/fr
Publication of EP0964161A3 publication Critical patent/EP0964161A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • 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
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type

Definitions

  • the present invention refers to a fan in plastic material of motor-drive fan for a motor vehicle cockpit.
  • Fans for ventilating a motor vehicle cockpit of well-known types are generally comprised of an electric motor with a rotor which rotatably drags a disc wheel in plastic material; the rotor is integral in rotation with the disc wheel by means of a cap-shaped portion provided with a centred hole in which the motor shaft is inserted with negative allowance and on which the cap rotates; therefore the latter is obtained in a single piece with the disc wheel.
  • the cap should be as rigid as possible and should also be provided with a precisely obtained centred hole because the motor shaft on which the cap is keyed rotates at a high number of revolutions, this means that it is sufficient the hole be slightly misaligned to cause the disc wheel takes on a rotating motion even if slightly oscillating around the axis of the motor shaft to generate an unacceptable imbalance.
  • the cap must be realised in rigid material, as it is the element which renders the shaft integral in rotation with the motor, while the disc wheel should preferably be realised in softer material, inferior material so as to avoid the generation of resonance and, consequently, noise during rotation; for these reasons, realising the group as a single element only adds to the compromise of a material which is neither too soft nor too rigid, with the result that it is not possible to optimise either of the two characteristics mentioned above.
  • the aim of the present invention is to realise a cap-disc wheel group capable of overcoming all the above-mentioned inconveniences and which will permit the optimisation of the choice of materials used for the realisation of the two components which make up the group.
  • the present invention proposes the realisation of a fan in plastic material of motor-drive fan for a motor vehicle cockpit comprising:
  • the fan according to the present invention is made up of two separate components; a cap 10 and a disc wheel 11.
  • the cap 10 presents a border 12, which is substantially in the form of a tapered cone, and a series of projections 13 which are suitably angularly distanced along the main body 9 of the cap itself.
  • each projection 13 In correspondence to each projection 13 are obtained through slits between the body 9 and the turned up border 12.
  • Openings 16 are obtained, following well-known procedure, between the upper surface 15 of the cap 10 and the body 9, in such a way as to permit the passage of air in the cap to cool the electric motor.
  • a through hole 8 is obtained in a central position on the surface 15 for the force fitting of the shaft 7 ( Figure 3) of the electric motor.
  • the disc wheel 11 is comprised of a number of bladings 17 which are equally orientated and angularly distanced on a ring defined by two circular bands 18 and 19 which support them at their extremities.
  • each fin 23 is angularly distanced from each other in the same way as the projections are angularly distanced from each other, and each fin has a circumferential extension which is substantially equal to that of each projection 13.
  • Figure 3 shows the cap-disc wheel group after it has been assembled together with the motor, in which can be identified the containment box 24, the support 25 for the electric circuit, the stator 27 and the rotor 26.
  • the cap 10 is integral with the rotor 26 and is mounted onto the shaft 7 with which it rotates.
  • the assembly of the cap-disc wheel group is carried out as follows: the two elements are brought closer to each other, as can be observed in Figure 2, in such a way that the fins 23 of the disc wheel face the projections 13 of the cap 10.
  • the fins 23 are first bent towards the bladings 17 so that they slide over the projections 13, then they open out again automatically to abut against the lower border 28 of projections 23.
  • the border 12 of the cap 10 bends slightly under the pressure of the border 19 of the disc wheel.
  • the group is perfectly coupled in an axial direction because it is then necessary to use a tool, inserted through the holes 14 of the border 14, in order to rotate the fins 23 to free them from the position in which they are constrained under the projections 13.
  • the disc wheel cannot rotate on the cap because the sections of the turned up border 20 of the disc wheel, comprised between each fin 23, laterally abut against the lateral faces 29 of two adjacent projections 13; this means that the disc wheel 11 cannot shift or rotate at all in relation to the cap 10 on which it is constrained.
  • cap-disc wheel group must function as if it were a single body in order to avoid any play, oscillation or shift which might cause the fan to make a noise or might even effect its performance after a short time.
  • the disc wheel and the cap are two separate bodies they can be realised in different materials, so that it is possible to overcome the previously mentioned inconveniences presented by fans currently available on the market and permitting optimal molding conditions for each of the two elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
EP99109194A 1998-06-12 1999-05-10 Roue ventilateur Withdrawn EP0964161A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO980108 1998-02-12
IT98TO000108 IT245852Y1 (it) 1998-06-12 1998-06-12 Ventola in materiale plastico di motoventilatore per abitacolo diautoveicoli

Publications (2)

Publication Number Publication Date
EP0964161A2 true EP0964161A2 (fr) 1999-12-15
EP0964161A3 EP0964161A3 (fr) 2001-04-04

Family

ID=11416413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109194A Withdrawn EP0964161A3 (fr) 1998-06-12 1999-05-10 Roue ventilateur

Country Status (2)

Country Link
EP (1) EP0964161A3 (fr)
IT (1) IT245852Y1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251281A1 (fr) * 2001-04-17 2002-10-23 BVM Systems S.p.A. Appareil de ventilation tangentielle
US20160281731A1 (en) * 2015-03-24 2016-09-29 Samsung Electronics Co., Ltd. Centrifugal fan
EP4269808A1 (fr) * 2022-04-29 2023-11-01 Acer Incorporated Ventilateur centrifuge de dissipation de chaleur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039035A1 (de) * 1980-10-16 1982-04-29 Ebm Elektrobau Mulfingen Gmbh & Co, 7119 Mulfingen Luefter
DE8626016U1 (de) * 1986-09-30 1986-11-06 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Halterung zum Halten eines Gebläses in einem Gehäuse
ATE159326T1 (de) * 1994-02-05 1997-11-15 Papst Motoren Gmbh & Co Kg Lüfter mit einem lüfterrad
PT705982E (pt) * 1994-09-30 2001-10-30 Stork J E Ventilatoren Bv Ventilador

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251281A1 (fr) * 2001-04-17 2002-10-23 BVM Systems S.p.A. Appareil de ventilation tangentielle
US20160281731A1 (en) * 2015-03-24 2016-09-29 Samsung Electronics Co., Ltd. Centrifugal fan
CN106015031A (zh) * 2015-03-24 2016-10-12 三星电子株式会社 离心式风扇
EP3073123B1 (fr) * 2015-03-24 2019-05-22 Samsung Electronics Co., Ltd. Ventilateur centrifuge
CN106015031B (zh) * 2015-03-24 2019-09-03 三星电子株式会社 离心式风扇
US10465696B2 (en) 2015-03-24 2019-11-05 Samsung Electronics Co., Ltd. Centrifugal fan
EP4269808A1 (fr) * 2022-04-29 2023-11-01 Acer Incorporated Ventilateur centrifuge de dissipation de chaleur
US12104603B2 (en) 2022-04-29 2024-10-01 Acer Incorporated Centrifugal heat dissipation fan

Also Published As

Publication number Publication date
EP0964161A3 (fr) 2001-04-04
ITTO980108U1 (it) 1999-12-12
IT245852Y1 (it) 2002-03-26

Similar Documents

Publication Publication Date Title
US5944497A (en) Fan assembly having an air directing member to cool a motor
US6514052B2 (en) Two sided radial fan for motor cooling
EP0802611B1 (fr) Moteur sans balai avec support de palier tubulaire
JP4126624B2 (ja) モータアセンブリ
EP2975285A3 (fr) Ventilateur et ensemble d'entraînement de ce ventilateur
JP2003094957A (ja) 電動ホイールモータ
EP0964161A2 (fr) Roue ventilateur
CN109586508A (zh) 轴向磁通马达以及电气装置
US4022074A (en) Cooling device
JP2004150609A (ja) 変速装置
KR102005552B1 (ko) 냉각장치가 설치된 터보 블로워
JPH11223195A (ja) 軸流ファンの回転子
KR100973284B1 (ko) 브러시리스 모터용 회전자 및 이의 제조방법
KR200205488Y1 (ko) 모터용 냉각 팬
JP2005140095A (ja) 遠心ファン
KR100446783B1 (ko) 모터용 냉각팬
JPH04102754A (ja) 回転体の構造
US4643644A (en) Shaft and pulley assembly
JPH01117996A (ja) 風切換機構つき扇風機
KR100381280B1 (ko) 고압펌프용 임펠러
WO2017154764A1 (fr) Soufflante
WO2000073661A1 (fr) Turboreacteur a double flux
JP3788247B2 (ja) プラスチックマグネットロータ、このプラスチックマグネットロータを用いた電動機、及びこの電動機を用いた空気調和機
JPH10141296A (ja) 送風機
CN121251618A (zh) 环形扇叶结构

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010509

AKX Designation fees paid

Free format text: DE ES FR GB IT SE

17Q First examination report despatched

Effective date: 20021011

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20030423