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US20090010782A1 - Fan Unit, Particularly for a Vacuum Cleaner - Google Patents

Fan Unit, Particularly for a Vacuum Cleaner Download PDF

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Publication number
US20090010782A1
US20090010782A1 US11/909,506 US90950606A US2009010782A1 US 20090010782 A1 US20090010782 A1 US 20090010782A1 US 90950606 A US90950606 A US 90950606A US 2009010782 A1 US2009010782 A1 US 2009010782A1
Authority
US
United States
Prior art keywords
vacuum cleaner
power semiconductor
recited
fan
cleaner fan
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.)
Abandoned
Application number
US11/909,506
Other languages
English (en)
Inventor
Klaus Bartsch
Manfred Gerhards
Friedhelm Sicken
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Assigned to MIELE & CIE. KG reassignment MIELE & CIE. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SICKEN, FRIEDHELM, GERHARDS, MANFRED, BARTSCH, KLAUS
Publication of US20090010782A1 publication Critical patent/US20090010782A1/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements

Definitions

  • the present invention relates to a vacuum cleaner fan, including an electric drive motor having a bearing pot for accommodating the component modules of the drive motor, such as a stator, rotor and, if present, brush holders with carbon brushes, and further including an at least single-stage fan unit which is driven by the motor and has a guide stage, an impeller, and a suction cap.
  • an electric drive motor having a bearing pot for accommodating the component modules of the drive motor, such as a stator, rotor and, if present, brush holders with carbon brushes
  • an at least single-stage fan unit which is driven by the motor and has a guide stage, an impeller, and a suction cap.
  • a similar fan unit is employed, for example, in a vacuum cleaner manufactured by the Applicant, namely the Miele S 712.
  • the power semiconductor used therein is a Triac.
  • a control circuit board containing the Triac, a thermal switch, and a radio interference suppression capacitor is screwed to the end face of the bearing pot which is opposite the impeller.
  • large-surface heat sinks are used to dissipate heat. These heat sinks are expensive and complicate assembly.
  • the invention provides a vacuum cleaner fan with an electric drive motor having a stator assembly and a rotor.
  • the stator assembly and rotor are disposed in a bearing pot.
  • An at least single-stage fan unit is driven by the electric motor.
  • the fan unit includes a guide stage, a suction cap, and an impeller that is configured to generate an air stream.
  • the bearing pot includes a receiving pocket which holds an adapter housing.
  • the adapter housing accommodates a printed circuit board.
  • a power semiconductor operable to control rotational speed of the fan unit is included on the printed circuit board. At least a portion of the power semiconductor protrudes from the adapter housing into the vicinity of the air stream generated by the fan unit.
  • FIGS. 1-5 in which:
  • FIG. 1 is a longitudinal section through a fan unit designed in accordance with the present invention
  • FIG. 2 is a perspective detail view showing the fan unit of FIG. 1 with the guide stage and with inserted adapter housing;
  • FIG. 3 is a detail of FIG. 2 in the region of the Triac
  • FIG. 4 is a perspective front view showing the adapter housing and the control circuit board
  • FIG. 5 is a perspective front view showing the adapter housing and the control circuit board with the cover removed.
  • the present invention provides for very efficient heat dissipation in spite of the fact that no heat sinks are used, by positioning the power semiconductor in the cooling air stream of the impeller.
  • the adapter housing includes a lower part and a cover, the power semiconductor at least partially protruding through an opening formed in the cover.
  • the other electrical and electronic components on the printed circuit board can be protected by the adapter housing. This facilitates handling during assembly and prevents destruction of these parts or of their solder connections on the printed circuit board.
  • the power semiconductor may have a metallic flange which protrudes from the adapter housing. Via the flange, heat is efficiently removed from the power semiconductor, which ensures adequate cooling and allows the remainder of the power semiconductor to be protected by the adapter housing.
  • the cover can be able to be snap-fitted to the lower part after insertion of the printed circuit board.
  • the portion of the power semiconductor that projects into the air stream of the impeller is disposed behind an air supply opening of the guide stage. This is the location of greatest air flow. In addition, the air is cool since it has not yet passed any heated parts of the motor.
  • FIG. 1 shows a suction fan 1 for a vacuum cleaner, the assembly including an electric drive motor 2 and a fan unit 3 which is driven by the motor.
  • Fan unit 3 is covered by a suction cap 4 which has an intake opening 5 for the suction air stream.
  • a bearing pot 10 accommodates the known component modules of drive motor 2 , such as wound stator assembly 6 , rotor 7 , and brush holders 8 with carbon brushes 9 .
  • Fan unit 3 is single-stage and includes a guide stage 11 located below suction cap 4 , and an impeller 12 .
  • Guide stage 11 at the same time forms the bearing pot cover of drive motor 2 , and is formed with a bearing seat 13 for receiving a bearing 13 . 1 for rotor shaft 7 . 1 .
  • the bearing 14 .
  • bearing seat 14 located in pot bottom 15 of bearing pot 10 .
  • bearing seat 14 is disposed in a cross-shaped bearing member 23 (see FIG. 2 ), which is formed in bearing pot bottom 15 and leaves open the air outlets 24 for the fan air which is passed through motor 2 .
  • the configuration in the form of a cross-shaped bearing member 23 is, of course, not mandatory. Instead, the suction air outlets may also be provided by any other pot bottom configuration, such as a closed pot bottom in combination with air slots formed in the side of the bearing pot.
  • Bearing pot 10 which is shown isolated in FIG. 2 , is formed with a flange 16 on the side facing guide stage 11 , said flange projecting beyond the pot.
  • the edge projection 17 created in this manner has integrally formed first receiving pockets 18 which are open at the top and toward bearing pot 10 and in which the brush holders 8 of carbon brushes 9 can be inserted from above.
  • the terminal pins 21 of the brush holders are at the same time directly contacted into the stator assembly terminals 20 , thereby establishing the electrically conductive connection between rotor 7 and the stator (see FIG. 1 ).
  • bearing pot 10 By forming bearing pot 10 with the edge projection 16 , the electrical switching, control and/or safety features required for suction fan drive motor 2 can be implemented by disposing electrical components within bearing pot 10 . These components are received in a further receiving pocket 27 which is open toward the interior of bearing pot 10 .
  • the electrical components are mounted on a printed circuit board 29 (see FIG. 5 ), which is preferably also provided with terminal pins 30 . 1 and 30 . 2 for direct contacting to stator winding 6 . 1 .
  • printed circuit board 29 is inserted into a separate adapter housing 31 , which in turn is inserted into receiving pocket 27 .
  • Receiving pocket 27 formed in bearing pot shell 19 is provided on the underside with a plug socket 32 for an external plug connector.
  • Plug socket 32 penetrates shell 19 of bearing pot 10 in an axial direction.
  • Adapter housing 31 containing printed circuit board 29 can be inserted into receiving pocket 27 in a form-fitting manner.
  • the adapter housing is of a two-part construction, including a lower part 33 and a cover 34 , which are connected together by snap-fit means 35 . 1 and 35 . 2 after insertion of printed circuit board 29 .
  • Variation of the motor speed, and thus of the fan output, is accomplished by means of a phase control circuit in which a Triac 36 chops off portions of the line voltage half-waves supplied to the stator winding.
  • a Triac 36 chops off portions of the line voltage half-waves supplied to the stator winding.
  • This control method is generally known and is not described in greater detail here. Since the Triac 36 mounted on printed circuit board 29 is heated by the electric power supplied thereto, the present invention provides for the Triac to be disposed in the cooling air stream of impeller 12 , said cooling air stream being denoted by the arrows in FIG. 1 .
  • cover 34 of adapter housing 31 is provided with an opening 37 through which protrudes metallic flange 38 of Triac 36 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)
US11/909,506 2005-03-22 2006-02-23 Fan Unit, Particularly for a Vacuum Cleaner Abandoned US20090010782A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005013774 2005-03-22
DE102005013774.1 2005-03-22
PCT/EP2006/001643 WO2006099927A1 (de) 2005-03-22 2006-02-23 Gebläseeinheit, insbesondere für einen staubsauger

Publications (1)

Publication Number Publication Date
US20090010782A1 true US20090010782A1 (en) 2009-01-08

Family

ID=36297188

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/909,506 Abandoned US20090010782A1 (en) 2005-03-22 2006-02-23 Fan Unit, Particularly for a Vacuum Cleaner

Country Status (7)

Country Link
US (1) US20090010782A1 (de)
EP (1) EP1861912B1 (de)
AT (1) ATE450918T1 (de)
DE (1) DE502006005516D1 (de)
PL (1) PL1861912T3 (de)
SI (1) SI1861912T1 (de)
WO (1) WO2006099927A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100254826A1 (en) * 2009-03-25 2010-10-07 Gunter Streng Radial Blower
US20130313933A1 (en) * 2011-02-10 2013-11-28 Panasonic Corporation Rotor of motor and fan driving motor including rotor
US20130313934A1 (en) * 2011-02-10 2013-11-28 Panasonic Corporation Rotor of motor and fan driving motor including rotor
US20150219107A1 (en) * 2012-09-19 2015-08-06 M.B.H. Developpement Suction unit for mobile work equipment and devices
US10348153B2 (en) * 2017-10-24 2019-07-09 Denso International America, Inc. HVAC blower motor assembly
US10931177B2 (en) * 2018-04-12 2021-02-23 Yao-Lin Wang Generator with built-in voltage controller inside a motor having a changeover knife switch configuration and loops
US20210340996A1 (en) * 2020-04-29 2021-11-04 Lg Electronics Inc. Fan motor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3062088B1 (fr) * 2017-01-23 2019-06-07 Valeo Systemes Thermiques Volutes et modules de commande pour dispositifs de chauffage, ventilation ou climatisation d'un vehicule automobile

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634019A (en) * 1986-03-14 1987-01-06 J. L. Clark Manufacturing Co. Container with plastic hinge
US5530295A (en) * 1993-12-29 1996-06-25 Intel Corporation Drop-in heat sink
US6190941B1 (en) * 1998-09-17 2001-02-20 Daimlerchrysler Ag Method of fabricating a circuit arrangement with thermal vias
US6203293B1 (en) * 1997-06-04 2001-03-20 Asmo Co., Ltd. Electric fan apparatus, connector connection structure, and intermediate terminal
US6215662B1 (en) * 2000-03-13 2001-04-10 Intel Corporation Circuit board with interleaved TO-220 heat sinks
US20020109426A1 (en) * 2000-12-20 2002-08-15 Trw Automotive Electronics & Components Gmbh & Co. Kg Drive unit for a fan in a vehicle
US6488475B2 (en) * 2000-03-30 2002-12-03 Matsushita Electric Industrial Co., Ltd. Electric blower and electric cleaner with an air cooled power device situated between the impeller and motor
US20040037043A1 (en) * 2002-08-20 2004-02-26 Via Technologies, Inc. IC package with an implanted heat-dissipation fin
US20040123482A1 (en) * 2002-09-20 2004-07-01 Matsushita Electric Industrial Co, Ltd. Electric blower and vacuum cleaner using same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000025656A1 (de) * 1998-10-31 2000-05-11 Miele & Cie. Gmbh & Co. Staubsaugergebläse

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634019A (en) * 1986-03-14 1987-01-06 J. L. Clark Manufacturing Co. Container with plastic hinge
US5530295A (en) * 1993-12-29 1996-06-25 Intel Corporation Drop-in heat sink
US6203293B1 (en) * 1997-06-04 2001-03-20 Asmo Co., Ltd. Electric fan apparatus, connector connection structure, and intermediate terminal
US6190941B1 (en) * 1998-09-17 2001-02-20 Daimlerchrysler Ag Method of fabricating a circuit arrangement with thermal vias
US6215662B1 (en) * 2000-03-13 2001-04-10 Intel Corporation Circuit board with interleaved TO-220 heat sinks
US6488475B2 (en) * 2000-03-30 2002-12-03 Matsushita Electric Industrial Co., Ltd. Electric blower and electric cleaner with an air cooled power device situated between the impeller and motor
US20020109426A1 (en) * 2000-12-20 2002-08-15 Trw Automotive Electronics & Components Gmbh & Co. Kg Drive unit for a fan in a vehicle
US20040037043A1 (en) * 2002-08-20 2004-02-26 Via Technologies, Inc. IC package with an implanted heat-dissipation fin
US20040123482A1 (en) * 2002-09-20 2004-07-01 Matsushita Electric Industrial Co, Ltd. Electric blower and vacuum cleaner using same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100254826A1 (en) * 2009-03-25 2010-10-07 Gunter Streng Radial Blower
US9109610B2 (en) * 2009-03-25 2015-08-18 Ebm-Papst Mulfingen Gmbh & Co. Kg Radial blower
US20130313933A1 (en) * 2011-02-10 2013-11-28 Panasonic Corporation Rotor of motor and fan driving motor including rotor
US20130313934A1 (en) * 2011-02-10 2013-11-28 Panasonic Corporation Rotor of motor and fan driving motor including rotor
US9293954B2 (en) * 2011-02-10 2016-03-22 Panasonic Intellectual Property Management Co., Ltd. Rotor of motor and fan driving motor including rotor
US9369014B2 (en) * 2011-02-10 2016-06-14 Panasonic Intellectual Property Management Co., Ltd. Rotor of motor and fan driving motor including rotor
US20150219107A1 (en) * 2012-09-19 2015-08-06 M.B.H. Developpement Suction unit for mobile work equipment and devices
US10348153B2 (en) * 2017-10-24 2019-07-09 Denso International America, Inc. HVAC blower motor assembly
US10931177B2 (en) * 2018-04-12 2021-02-23 Yao-Lin Wang Generator with built-in voltage controller inside a motor having a changeover knife switch configuration and loops
US20210340996A1 (en) * 2020-04-29 2021-11-04 Lg Electronics Inc. Fan motor
US11867197B2 (en) * 2020-04-29 2024-01-09 Lg Electronics Inc. Fan motor

Also Published As

Publication number Publication date
WO2006099927A1 (de) 2006-09-28
PL1861912T3 (pl) 2010-05-31
EP1861912B1 (de) 2009-12-02
SI1861912T1 (sl) 2010-03-31
DE502006005516D1 (de) 2010-01-14
ATE450918T1 (de) 2009-12-15
EP1861912A1 (de) 2007-12-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MIELE & CIE. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BARTSCH, KLAUS;GERHARDS, MANFRED;SICKEN, FRIEDHELM;REEL/FRAME:019868/0377;SIGNING DATES FROM 20070709 TO 20070723

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION