EP1428926A3 - Washing machine with improved synchronous motor - Google Patents

Washing machine with improved synchronous motor Download PDF

Info

Publication number
EP1428926A3
EP1428926A3 EP03023702A EP03023702A EP1428926A3 EP 1428926 A3 EP1428926 A3 EP 1428926A3 EP 03023702 A EP03023702 A EP 03023702A EP 03023702 A EP03023702 A EP 03023702A EP 1428926 A3 EP1428926 A3 EP 1428926A3
Authority
EP
European Patent Office
Prior art keywords
washing machine
synchronous motor
cavity
eccentric protrusion
impeller
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
EP03023702A
Other languages
German (de)
French (fr)
Other versions
EP1428926A2 (en
EP1428926B1 (en
Inventor
Ugo Favret
Silvano Cimetta
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Publication of EP1428926A2 publication Critical patent/EP1428926A2/en
Publication of EP1428926A3 publication Critical patent/EP1428926A3/en
Application granted granted Critical
Publication of EP1428926B1 publication Critical patent/EP1428926B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps
    • 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
    • F04D29/18—Rotors
    • F04D29/20—Mounting rotors on shafts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/48—Current or voltage of the motor driving the pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Control Of Multiple Motors (AREA)
  • Telephone Function (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

A washing machine is provided with a drain pump comprising a synchronous motor and an impeller (2); the shaft (1) of the motor is provided with an appropriate flywheel (33) and has an eccentric protrusion (4) at the extremity thereof, and said impeller, in its central zone where it is fitted onto said shaft, is provided with a ring-shaped (5) cavity extending circularly only along a definite arc portion (A) and adapted to accommodate said eccentric protrusion. This eccentric protrusion is in turn so sized with respect to said cavity as to be capable of freely rotating for a pre-definable arc (B) within said cavity.
EP03023702A 2002-12-10 2003-10-20 Washing machine with improved synchronous motor Expired - Lifetime EP1428926B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN20020096 2002-12-10
IT000096A ITPN20020096A1 (en) 2002-12-10 2002-12-10 WASHING MACHINE WITH PERFECTED ASYNCHRONOUS MOTOR.

Publications (3)

Publication Number Publication Date
EP1428926A2 EP1428926A2 (en) 2004-06-16
EP1428926A3 true EP1428926A3 (en) 2007-01-24
EP1428926B1 EP1428926B1 (en) 2008-01-30

Family

ID=32321439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03023702A Expired - Lifetime EP1428926B1 (en) 2002-12-10 2003-10-20 Washing machine with improved synchronous motor

Country Status (5)

Country Link
EP (1) EP1428926B1 (en)
AT (1) ATE385269T1 (en)
DE (1) DE60318932T2 (en)
ES (1) ES2297086T3 (en)
IT (1) ITPN20020096A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE398851T1 (en) * 2006-07-26 2008-07-15 Electrolux Home Prod Corp ROTARY PUMP DRIVEN BY A SYNCHRONOUS MOTOR WITH A FLUID FRICTION CLUTCH
ITTO20090566A1 (en) * 2009-07-24 2011-01-25 Indesit Co Spa WASHING MACHINE, IN PARTICULAR A DISHWASHER.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0287984A2 (en) * 1987-04-22 1988-10-26 ASKOLL S.p.A. Improved centrifugal pump for electric household appliances such as washing machines, dishwashers and the like
WO1999048189A1 (en) * 1998-03-19 1999-09-23 Askoll Holding S.R.L. Device for transmitting motion between the rotor of a synchronous permanent-magnet motor and the working part, having an increased free rotation angle
EP1061261A1 (en) * 1999-06-16 2000-12-20 Lg Electronics Inc. Apparatus for controlling noise and vibration for drain pump
US20020122731A1 (en) * 2000-07-06 2002-09-05 Elio Marioni Monodirectional impeller for centrifugal electric pumps having a permanent-magnet synchronous motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0287984A2 (en) * 1987-04-22 1988-10-26 ASKOLL S.p.A. Improved centrifugal pump for electric household appliances such as washing machines, dishwashers and the like
WO1999048189A1 (en) * 1998-03-19 1999-09-23 Askoll Holding S.R.L. Device for transmitting motion between the rotor of a synchronous permanent-magnet motor and the working part, having an increased free rotation angle
EP1061261A1 (en) * 1999-06-16 2000-12-20 Lg Electronics Inc. Apparatus for controlling noise and vibration for drain pump
US20020122731A1 (en) * 2000-07-06 2002-09-05 Elio Marioni Monodirectional impeller for centrifugal electric pumps having a permanent-magnet synchronous motor

Also Published As

Publication number Publication date
EP1428926A2 (en) 2004-06-16
EP1428926B1 (en) 2008-01-30
ITPN20020096A1 (en) 2004-06-11
DE60318932T2 (en) 2009-01-29
ATE385269T1 (en) 2008-02-15
DE60318932D1 (en) 2008-03-20
ES2297086T3 (en) 2008-05-01

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