EP1025792A2 - Elektromotorisch betriebene Saugeinheit mit Laufrad zum Kühlen des Motors - Google Patents

Elektromotorisch betriebene Saugeinheit mit Laufrad zum Kühlen des Motors Download PDF

Info

Publication number
EP1025792A2
EP1025792A2 EP00200345A EP00200345A EP1025792A2 EP 1025792 A2 EP1025792 A2 EP 1025792A2 EP 00200345 A EP00200345 A EP 00200345A EP 00200345 A EP00200345 A EP 00200345A EP 1025792 A2 EP1025792 A2 EP 1025792A2
Authority
EP
European Patent Office
Prior art keywords
unit
partition
impeller
motor
accordance
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
EP00200345A
Other languages
English (en)
French (fr)
Other versions
EP1025792A3 (de
EP1025792B1 (de
Inventor
Mario Giussani
Giampaolo Rapi
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.)
Ametek Italia SRL
Original Assignee
Ametek Italia SRL
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 Ametek Italia SRL filed Critical Ametek Italia SRL
Publication of EP1025792A2 publication Critical patent/EP1025792A2/de
Publication of EP1025792A3 publication Critical patent/EP1025792A3/de
Application granted granted Critical
Publication of EP1025792B1 publication Critical patent/EP1025792B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans

Definitions

  • the present invention relates to a powered aspirator unit of the type termed 'bypass' i.e. the type in which the pump suction path and the motor cooling air path are separated to prevent any sucked liquid from reaching the electrical part of the motor.
  • Units of this type are ordinarily used in aspirator cleaners having the ability to suck liquid also.
  • bypass units are supplied with a suction unit which is mounted at the motor head with the blower keyed to the drive shaft. At the opposite end of the shaft is mounted the motor cooling air circulation fan.
  • a suction unit which is mounted at the motor head with the blower keyed to the drive shaft.
  • the motor cooling air circulation fan At the opposite end of the shaft is mounted the motor cooling air circulation fan.
  • the general purpose of the present invention is to remedy the above mentioned shortcomings by making available a bypass unit having reduced space occupied, better performance and relatively reduced costs.
  • a powered aspirator unit comprising an electric motor having an impeller for cooling and a suction assemblage with fan keyed on the drive shaft characterized in that between the motor and the fan there is a partition in which is made a seat for a shaft support bearing and that the impeller extends into the radial zone of the bearing.
  • a 'bypass' unit indicated as a whole by reference number 10 comprises an external shell or bowl 11 pressed from plastic material, containing a stator part 12 and a rotor part 13 and supported on a shaft 14 of an electric motor.
  • a cap 15 completes the shell 11 and has an axial suction inlet 16 for a fan 17 keyed on the end of the shaft 14 to complete a sucking assemblage.
  • the air pushed by the fan is evacuated through peripheral channels 18.
  • the cavity 19 containing the fan is separated from the motor cavity 20 by a partition 21 which partially embodies the evacuation channels 18 (for the rest embodied by the edge 22 of the bowl 11).
  • the partition 21 is shaped with a cavity 23 to form the stator part of a motor cooling impeller 24 which is keyed to the shaft 14.
  • the impeller 24 sucks air longitudinally to the motor starting from the inlets 25 embodied at the base of the bowl 11.
  • the air flow traverses the motor at 26 as shown by the arrows in FIG 1 and is evacuated through the radial openings 27 made in the wall of the bowl immediately beneath the edge 22.
  • a pressed cap 35 provides a deflector arranged radially facing the evacuation openings 27 to channel the emerging flow and prevent possible recirculation.
  • the shaft 14 is supported by a first bearing 28 housed in a seat 29 in the bowl base and by a second bearing 30 housed in a seat 31 made in the thickness of the partition 21.
  • a first bearing 28 housed in a seat 29 in the bowl base
  • a second bearing 30 housed in a seat 31 made in the thickness of the partition 21.
  • the thickness of the partition 21 necessary for housing the bearing is also employed for receiving the cavity 23. In other words the impeller extends into the bearing radial zone.
  • FIGS 2 and 3 can be seen how the suction unit evacuation ducts are made.
  • the ducts are formed by a part 18a pressed in the edge of the bowl and a part 18b pressed in the partition 21.
  • chutes 18a with inlet edge 32 and direct for a first section tangentially to then bend up to the radial outlets.
  • the static part of the unit is reduced to three members (bowl, cap and partitions) easy to make (e.g. pressed from plastic material) and assemble. Lastly the stoutness of the assemblage is increased.

Landscapes

  • Motor Or Generator Cooling System (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Centrifugal Separators (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Telephone Function (AREA)
  • Compressor (AREA)
EP00200345A 1999-02-08 2000-02-02 Elektromotorisch betriebene Saugeinheit mit Laufrad zum Kühlen des Motors Expired - Lifetime EP1025792B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999MI000237A IT1307675B1 (it) 1999-02-08 1999-02-08 Gruppo motoaspiratore a struttura perfezionata
ITMI990237 1999-02-08

Publications (3)

Publication Number Publication Date
EP1025792A2 true EP1025792A2 (de) 2000-08-09
EP1025792A3 EP1025792A3 (de) 2002-05-29
EP1025792B1 EP1025792B1 (de) 2006-10-11

Family

ID=11381790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00200345A Expired - Lifetime EP1025792B1 (de) 1999-02-08 2000-02-02 Elektromotorisch betriebene Saugeinheit mit Laufrad zum Kühlen des Motors

Country Status (6)

Country Link
EP (1) EP1025792B1 (de)
AT (1) ATE341987T1 (de)
DE (1) DE60031187T2 (de)
DK (1) DK1025792T3 (de)
IT (1) IT1307675B1 (de)
TR (1) TR200000364A2 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1325702A2 (de) * 2002-01-03 2003-07-09 Lg Electronics Inc. Kreiselgebläse für Staubsauger
EP1334685A2 (de) * 2002-02-07 2003-08-13 Johnson Electric S.A. Gebläsemotor
EP1334684A2 (de) * 2002-02-07 2003-08-13 Johnson Electric S.A. Gebläsemotor
GB2467965A (en) * 2009-02-24 2010-08-25 Dyson Technology Ltd Impeller and bearing arrangement in a rotor assembly, eg for a centrifugal compressor
US8864460B2 (en) 2011-08-26 2014-10-21 Dyson Technology Limited Bearing assembly
US11976666B2 (en) 2020-10-22 2024-05-07 Lg Electronics Inc. Fan motor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102334621B1 (ko) 2019-07-10 2021-12-03 엘지전자 주식회사 팬모터
KR102171454B1 (ko) 2019-07-10 2020-10-29 엘지전자 주식회사 팬모터 및 그 제조방법
US11510542B2 (en) 2019-12-24 2022-11-29 X'pole Precision Tools Inc. Exhaust motor of vacuum device
EP3849065A1 (de) 2020-01-09 2021-07-14 X'Pole Precision Tools Inc. Abgasmotor einer vakuumvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2196681A5 (de) * 1972-08-18 1974-03-15 Gen Signal Corp
US3874023A (en) * 1973-09-13 1975-04-01 Hoover Co Resiliently mounted motor and fan arrangement for a canister cleaner or the like
US4120616A (en) * 1975-10-06 1978-10-17 Breuer Electric Manufacturing Company Vacuum cleaner-blower assembly with sound absorbing arrangement
US4698534A (en) * 1985-02-22 1987-10-06 Ametek, Inc. Quiet by-pass vacuum motor
EP0413113A2 (de) * 1989-07-14 1991-02-20 WAP Reinigungssysteme GmbH & Co. Elektronisch kommutierter Motor für Staubsauger und dergleichen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD157886A1 (de) * 1981-04-03 1982-12-15 Elektrogeraete Ingbuero Veb Motorgeblaeseeinheit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2196681A5 (de) * 1972-08-18 1974-03-15 Gen Signal Corp
US3874023A (en) * 1973-09-13 1975-04-01 Hoover Co Resiliently mounted motor and fan arrangement for a canister cleaner or the like
US4120616A (en) * 1975-10-06 1978-10-17 Breuer Electric Manufacturing Company Vacuum cleaner-blower assembly with sound absorbing arrangement
US4698534A (en) * 1985-02-22 1987-10-06 Ametek, Inc. Quiet by-pass vacuum motor
EP0413113A2 (de) * 1989-07-14 1991-02-20 WAP Reinigungssysteme GmbH & Co. Elektronisch kommutierter Motor für Staubsauger und dergleichen

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1325702A3 (de) * 2002-01-03 2003-08-20 Lg Electronics Inc. Kreiselgebläse für Staubsauger
EP1325702A2 (de) * 2002-01-03 2003-07-09 Lg Electronics Inc. Kreiselgebläse für Staubsauger
US6851928B2 (en) 2002-02-07 2005-02-08 Johnson Electric S.A. Blower motor
EP1334684A2 (de) * 2002-02-07 2003-08-13 Johnson Electric S.A. Gebläsemotor
EP1334684A3 (de) * 2002-02-07 2004-01-14 Johnson Electric S.A. Gebläsemotor
US6808365B2 (en) 2002-02-07 2004-10-26 Johnson Electric S.A. Blower motor
EP1334685A2 (de) * 2002-02-07 2003-08-13 Johnson Electric S.A. Gebläsemotor
EP1334685A3 (de) * 2002-02-07 2005-03-09 Johnson Electric S.A. Gebläsemotor
CN100338852C (zh) * 2002-02-07 2007-09-19 德昌电机股份有限公司 鼓风机马达
GB2467965A (en) * 2009-02-24 2010-08-25 Dyson Technology Ltd Impeller and bearing arrangement in a rotor assembly, eg for a centrifugal compressor
GB2467965B (en) * 2009-02-24 2015-04-22 Dyson Technology Ltd Rotor assembly
US9624940B2 (en) 2009-02-24 2017-04-18 Dyson Technology Limited Rotor assembly
US8864460B2 (en) 2011-08-26 2014-10-21 Dyson Technology Limited Bearing assembly
US11976666B2 (en) 2020-10-22 2024-05-07 Lg Electronics Inc. Fan motor

Also Published As

Publication number Publication date
TR200000364A3 (tr) 2000-09-21
ATE341987T1 (de) 2006-11-15
DE60031187T2 (de) 2007-08-30
IT1307675B1 (it) 2001-11-14
DK1025792T3 (da) 2007-02-19
DE60031187D1 (de) 2006-11-23
EP1025792A3 (de) 2002-05-29
ITMI990237A1 (it) 2000-08-08
TR200000364A2 (tr) 2000-09-21
EP1025792B1 (de) 2006-10-11

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