EP0692076B1 - Radialgebläserad - Google Patents

Radialgebläserad Download PDF

Info

Publication number: EP0692076B1
Authority: EP; European Patent Office
Prior art keywords: openings; fan wheel; impeller; radial; radial fan
Prior art date: 1994-02-03
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

EP95906325A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0692076A1 (de

Inventor

Mathias Varnhorst

Cathleen BÖHME

Gerhard Ullrich

Peter Pszola

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.)

Vorwerk and Co Interholding GmbH

Original Assignee

Vorwerk and Co Interholding 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.)

1994-02-03

Filing date

1995-01-11

Publication date

1998-07-01

1995-01-11 Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH

1995-01-11 Priority to SI9530084T priority Critical patent/SI0692076T1/xx

1996-01-17 Publication of EP0692076A1 publication Critical patent/EP0692076A1/de

1998-07-01 Application granted granted Critical

1998-07-01 Publication of EP0692076B1 publication Critical patent/EP0692076B1/de

2015-01-11 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- F04D29/26—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
- 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
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes

Definitions

the invention preferably relates to a radial impeller on an electric motor, in particular on a vacuum cleaner electric motor, with an impeller disc on which preferably curved, one inside of the curvature and blades having a curved outside are formed, being in the impeller disk Through openings are formed.
Such a radial impeller is for example from DE-OS 25 50 481 known.
a radial impeller by means of the openings formed near the center an improvement in the delivery rate of the radial fan can be achieved.
DE-PS24 18 826 is also on the DE-PS24 18 826 to point out.
Even with this well-known Radial impeller becomes a through the openings Striving to improve performance.
the radial impeller known from this publication are radially inside, assigned to a foot area individual blades each have a through opening. Here is through these openings aspiration back into the suction area.
the Through openings near the blades, in the pressure area of the blades, namely formed on the outside of the curve are. It is particularly important that one blade has a plurality of through openings assigned. This majority of the through openings preferably spreads over essentially the entire extending towards a radial Length of a paddle wheel. Of further importance is the Overall context, the cross-sectional area, which through the through openings with respect to a - if necessary projected - base area of the impeller disc is taken. This from the through openings occupied area is preferably in the range of 0.01 to 10% of the specified area of the impeller disk. More preferably, the area is in the range of 0.1 to 5%.
the addressed projected area is especially important for radial impellers which the impeller disc is not flat, but has a curved course.
an opening axis of this opening is pointed Angle to an area of the fan wheel runs. This will extend the Extension of the through opening even in the wall the impeller disc is reached. This can also continue a targeted suction behavior has been achieved.
a through opening is one has enlarged cross-section. E.g. can the through opening be funnel-shaped. In detail it is advantageous to use the larger cross section to form such a passage opening on the blade side.
the appearance of the base of the through opening suitably is circular. But it can also be square and oval bases. In this It is also advantageous to look at the context Orientate manufacturing opportunities.
Fig. 1 Is shown and described initially with reference to Fig. 1 is an impeller 1 with blades 2, which in their radial extension are curved.
the blades 2 have an outside curvature 3 and an inside curvature 4.
On the outside of the curve 3 are near or adjacent to a base line 5 of a blade 2 a A plurality of through openings 6 are formed.
the Through openings 6 follow the curvature of the impeller. It can also be seen that the through openings 6 only with a certain radial distance a an axis of rotation A (see also FIG. 2) of the impeller 1 begin.
the distance a is in the embodiment about half of a radius R of the impeller.
the distance a is preferably in the range of 1/4 up to 2/3 of the radius R.
impeller 1 to such with a central hub 7, which is approximately conical up to the Blower wheel disc 8 expanded.
a central hub 7 which is approximately conical up to the Blower wheel disc 8 expanded.
radially innermost through openings 6 in Area of a base line 9 of the hub 7 is formed.
FIG. 5 is the installation of a such radial impeller 1 in a vacuum cleaner, the is only shown in sections. In particular, there is one in the vacuum cleaner - another one Detail, not shown - arranged electric motor 10.
the electric motor 10 drives via a shaft 10 ' the radial impeller 1.
the impeller 1 Air sucked in the direction of arrow P and through radial Distribution deflected in the direction of arrow P1.
the Dust-laden suction air is fed into the electric motor 10 downstream dust bags, which in individual is not shown.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Supercharger (AREA)
Automatic Cycles, And Cycles In General (AREA)
Motor Or Generator Cooling System (AREA)

EP95906325A 1994-02-03 1995-01-11 Radialgebläserad Expired - Lifetime EP0692076B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
SI9530084T SI0692076T1 (en)	1994-02-03	1995-01-11	Radial impeller

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE4403224		1994-02-03
DE4403224A DE4403224A1 (de)	1994-02-03	1994-02-03	Radialgebläserad
PCT/EP1995/000077 WO1995021330A1 (de)	1994-02-03	1995-01-11	Radialgebläserad

Publications (2)

Publication Number	Publication Date
EP0692076A1 EP0692076A1 (de)	1996-01-17
EP0692076B1 true EP0692076B1 (de)	1998-07-01

Family

ID=6509329

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95906325A Expired - Lifetime EP0692076B1 (de)	1994-02-03	1995-01-11	Radialgebläserad

Country Status (19)

Country	Link
EP (1)	EP0692076B1 (da)
JP (1)	JP3490089B2 (da)
CN (1)	CN1076447C (da)
AT (1)	ATE167917T1 (da)
AU (1)	AU1455795A (da)
CA (1)	CA2159803A1 (da)
CZ (1)	CZ285753B6 (da)
DE (2)	DE4403224A1 (da)
DK (1)	DK0692076T3 (da)
ES (1)	ES2118556T3 (da)
FI (1)	FI954669A7 (da)
LV (1)	LV12170B (da)
MY (1)	MY111675A (da)
NO (1)	NO953829L (da)
PL (1)	PL175646B1 (da)
SI (1)	SI0692076T1 (da)
SK (1)	SK280010B6 (da)
TW (1)	TW315699U (da)
WO (1)	WO1995021330A1 (da)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10020878C2 (de) *	2000-04-28	2002-05-02	Verax Ventilatoren Gmbh	Lüfter insbesondere zur Belüftung von elektronischen Geräten
JP4426776B2 (ja) *	2003-04-25	2010-03-03	株式会社やまびこ	送風用遠心羽根車
JP4453378B2 (ja) *	2004-02-03	2010-04-21	日立工機株式会社	送風機
CN100396937C (zh) *	2005-01-26	2008-06-25	鸿进科技有限公司	气流产生结构及其应用装置
ITPD20050116A1 (it) *	2005-04-27	2006-10-28	Ln 2 Srl	Sistema di circolazione forzata dell'aria per macchine asciugatrici e lavatrici-asciugatrici, particolarmente per uso domestico.
GB2444939A (en) *	2006-12-22	2008-06-25	Dyson Technology Ltd	A shaped member for an impeller rotor assembly
JP5295682B2 (ja) *	2008-08-08	2013-09-18	株式会社東芝	電動送風機および電気掃除機
FR2943103B1 (fr) *	2009-03-13	2011-05-27	Turbomeca	Compresseur axialo-centrifuge a angle de rake evolutif
CN104564805B (zh) *	2013-10-29	2017-11-10	海尔集团公司	一种离心风机的扇叶结构、离心风机及嵌入式空调内机
CN108266403A (zh) *	2017-01-03	2018-07-10	珠海格力电器股份有限公司	离心风机及其叶轮总成
CN107956742A (zh) *	2017-05-27	2018-04-24	莱克电气股份有限公司	一种叶轮组件及空气净化器
PL234932B1 (pl) *	2018-03-19	2020-05-18	Wroblewski Andrzej Przed Techniczno Handlowe Energowent	Wirnik wentylatora promieniowego
CN110319054B (zh) *	2019-05-30	2020-09-18	宁波方太厨具有限公司	一种用于前向离心风机的叶轮
CN110566501B (zh) *	2019-09-12	2025-03-07	佛山市南海九洲普惠风机有限公司	一种前弯式风叶及叶轮及离心风机
CN110905850B (zh) *	2019-10-28	2025-09-16	天津怡和嘉业医疗科技有限公司	用于通气治疗设备的叶轮、风机以及通气治疗设备
CN111043072B (zh) *	2019-11-26	2022-03-08	奇鋐科技股份有限公司	盘式扇轮结构
US11365750B2 (en)	2019-12-27	2022-06-21	Asia Vital Components Co., Ltd.	Tray-type fan impeller structure
CN112096664B (zh) *	2020-09-28	2022-05-27	江苏释元环保科技有限公司	一种用于通风换气系统的风机
TWI912761B (zh) *	2024-04-26	2026-01-21	台達電子工業股份有限公司	風扇轉子及其製造方法
CN120845386A (zh)	2024-04-26	2025-10-28	台达电子工业股份有限公司	风扇转子及其制造方法
CN120140270B (zh) *	2025-04-27	2026-03-27	江苏恒康机电有限公司	一种高比转速离心通风机叶轮

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE676527C (de) *	1936-12-11	1939-06-06	Ventilatorzug M B H Ges	Fliehkraftgeblaese
US3165257A (en) *	1962-10-03	1965-01-12	Howard C Edwards	Pressure inducer
DE2418826B2 (de) *	1974-04-19	1977-06-02	W.C. Heraeus Gmbh, 6450 Hanau	Waermekammer
DE2550481C3 (de) *	1975-11-11	1978-09-28	Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen	Kühlvorrichtung für das Kühlmittel einer flüssigkeitsgekühlten Brennkraftmaschine
JPS6166898A (ja) *	1984-09-07	1986-04-05	Matsushita Electric Ind Co Ltd	電動送風機
SE467982B (sv) *	1990-12-19	1992-10-12	Kamyr Ab	Suspensionspump med inbyggd vakuumpump, vilken vakuumpump har variabel kapacitet
DE4141359A1 (de) *	1991-12-14	1993-06-17	Sel Alcatel Ag	Geblaeserad fuer radialgeblaese

1994
- 1994-02-03 DE DE4403224A patent/DE4403224A1/de not_active Withdrawn
1995
- 1995-01-11 SK SK1204-95A patent/SK280010B6/sk unknown
- 1995-01-11 JP JP52033995A patent/JP3490089B2/ja not_active Expired - Fee Related
- 1995-01-11 FI FI954669A patent/FI954669A7/fi unknown
- 1995-01-11 AU AU14557/95A patent/AU1455795A/en not_active Abandoned
- 1995-01-11 CN CN95190061A patent/CN1076447C/zh not_active Expired - Fee Related
- 1995-01-11 AT AT95906325T patent/ATE167917T1/de not_active IP Right Cessation
- 1995-01-11 CA CA002159803A patent/CA2159803A1/en not_active Abandoned
- 1995-01-11 SI SI9530084T patent/SI0692076T1/xx not_active IP Right Cessation
- 1995-01-11 WO PCT/EP1995/000077 patent/WO1995021330A1/de not_active Ceased
- 1995-01-11 DK DK95906325T patent/DK0692076T3/da active
- 1995-01-11 ES ES95906325T patent/ES2118556T3/es not_active Expired - Lifetime
- 1995-01-11 CZ CZ952423A patent/CZ285753B6/cs unknown
- 1995-01-11 EP EP95906325A patent/EP0692076B1/de not_active Expired - Lifetime
- 1995-01-11 DE DE59502674T patent/DE59502674D1/de not_active Expired - Fee Related
- 1995-01-11 PL PL95310814A patent/PL175646B1/pl not_active IP Right Cessation
- 1995-01-25 MY MYPI95000167A patent/MY111675A/en unknown
- 1995-03-27 TW TW086206602U patent/TW315699U/zh unknown
- 1995-09-28 NO NO953829A patent/NO953829L/no unknown
1998
- 1998-09-16 LV LVP-98-178A patent/LV12170B/xx unknown

Also Published As

Publication number	Publication date
ATE167917T1 (de)	1998-07-15
CN1076447C (zh)	2001-12-19
CA2159803A1 (en)	1995-08-10
LV12170A (lv)	1998-11-20
WO1995021330A1 (de)	1995-08-10
NO953829D0 (no)	1995-09-28
LV12170B (lv)	1999-01-20
MY111675A (en)	2000-10-31
SI0692076T1 (en)	1999-02-28
CZ242395A3 (en)	1996-02-14
FI954669A0 (fi)	1995-10-02
CN1123050A (zh)	1996-05-22
DK0692076T3 (da)	1999-04-12
ES2118556T3 (es)	1998-09-16
NO953829L (no)	1995-09-28
PL310814A1 (en)	1996-01-08
AU1455795A (en)	1995-08-21
TW315699U (en)	1997-09-11
SK120495A3 (en)	1996-02-07
FI954669L (fi)	1995-10-02
FI954669A7 (fi)	1995-10-02
JP3490089B2 (ja)	2004-01-26
CZ285753B6 (cs)	1999-10-13
DE59502674D1 (de)	1998-08-06
EP0692076A1 (de)	1996-01-17
SK280010B6 (sk)	1999-07-12
PL175646B1 (pl)	1999-01-29
JPH08508806A (ja)	1996-09-17
DE4403224A1 (de)	1995-08-10

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Date	Code	Title	Description
1995-12-01	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
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1997-01-08	17Q	First examination report despatched	Effective date: 19961125
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Publication	Publication Date	Title
EP0692076B1 (de)	1998-07-01	Radialgebläserad
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