EP1382857A3 - Electric motor driven blower - Google Patents

Electric motor driven blower Download PDF

Info

Publication number
EP1382857A3
EP1382857A3 EP03014027A EP03014027A EP1382857A3 EP 1382857 A3 EP1382857 A3 EP 1382857A3 EP 03014027 A EP03014027 A EP 03014027A EP 03014027 A EP03014027 A EP 03014027A EP 1382857 A3 EP1382857 A3 EP 1382857A3
Authority
EP
European Patent Office
Prior art keywords
electric motor
motor driven
driven blower
diffuser
cap
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.)
Granted
Application number
EP03014027A
Other languages
German (de)
French (fr)
Other versions
EP1382857B1 (en
EP1382857A2 (en
Inventor
Mathias Varnhorst
Gerhard Ullrich
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.)
Filing date
Publication date
Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of EP1382857A2 publication Critical patent/EP1382857A2/en
Publication of EP1382857A3 publication Critical patent/EP1382857A3/en
Application granted granted Critical
Publication of EP1382857B1 publication Critical patent/EP1382857B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • 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
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material

Abstract

The electric motor (3) has a stator (4) and a rotor (5), a fan wheel (7) joined to the rotor and an associated fixed diffuser (9). The fan wheel and diffuser are enclosed by a centrally open cap (1). A sound damping element (17) associated with the diffuser is arranged inside the cap. The damping element is arranged in a crease-shaped impression in the cap at the end of the motor.
EP03014027A 2002-07-19 2003-06-23 Electric motor driven blower Expired - Lifetime EP1382857B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10232730 2002-07-19
DE10232730A DE10232730A1 (en) 2002-07-19 2002-07-19 Electric motor with a stator and a rotor

Publications (3)

Publication Number Publication Date
EP1382857A2 EP1382857A2 (en) 2004-01-21
EP1382857A3 true EP1382857A3 (en) 2004-09-08
EP1382857B1 EP1382857B1 (en) 2008-07-23

Family

ID=29762055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03014027A Expired - Lifetime EP1382857B1 (en) 2002-07-19 2003-06-23 Electric motor driven blower

Country Status (4)

Country Link
EP (1) EP1382857B1 (en)
AT (1) ATE402345T1 (en)
DE (2) DE10232730A1 (en)
ES (1) ES2305370T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832282B (en) * 2010-04-29 2012-02-08 中国船舶重工集团公司第七一二研究所 Low-vibration ventilation fan

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037291B (en) * 1955-02-17 1958-08-21 Baier Wilhelm Kg Air distribution device for vehicles
DE2354126A1 (en) * 1973-10-29 1975-04-30 Phonotherm Laerm Und Erschuett Radial blower with pressure side silencer - silencer surrounds rotor like guide wheel and blower housing also acts as protective housing for silencer
EP0385298A2 (en) * 1989-03-01 1990-09-05 Hitachi, Ltd. Electric blower having improved return passage for discharged air flow
DE19606146A1 (en) * 1996-02-20 1997-08-21 Vorwerk Co Interholding High-speed electric motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037291B (en) * 1955-02-17 1958-08-21 Baier Wilhelm Kg Air distribution device for vehicles
DE2354126A1 (en) * 1973-10-29 1975-04-30 Phonotherm Laerm Und Erschuett Radial blower with pressure side silencer - silencer surrounds rotor like guide wheel and blower housing also acts as protective housing for silencer
EP0385298A2 (en) * 1989-03-01 1990-09-05 Hitachi, Ltd. Electric blower having improved return passage for discharged air flow
DE19606146A1 (en) * 1996-02-20 1997-08-21 Vorwerk Co Interholding High-speed electric motor

Also Published As

Publication number Publication date
EP1382857B1 (en) 2008-07-23
ES2305370T3 (en) 2008-11-01
DE10232730A1 (en) 2004-02-05
EP1382857A2 (en) 2004-01-21
ATE402345T1 (en) 2008-08-15
DE50310184D1 (en) 2008-09-04

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