EP1591668A1 - Lüfter - Google Patents

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Publication number
EP1591668A1
EP1591668A1 EP05009373A EP05009373A EP1591668A1 EP 1591668 A1 EP1591668 A1 EP 1591668A1 EP 05009373 A EP05009373 A EP 05009373A EP 05009373 A EP05009373 A EP 05009373A EP 1591668 A1 EP1591668 A1 EP 1591668A1
Authority
EP
European Patent Office
Prior art keywords
foregoing
casing
motor
blower
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.)
Withdrawn
Application number
EP05009373A
Other languages
English (en)
French (fr)
Inventor
Hideki Aoi
Hidenori Sawada
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.)
Nidec Shibaura Corp
Original Assignee
Nidec Shibaura Corp
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 Nidec Shibaura Corp filed Critical Nidec Shibaura Corp
Publication of EP1591668A1 publication Critical patent/EP1591668A1/de
Withdrawn legal-status Critical Current

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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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence

Definitions

  • This invention concerns to the blower such as turbo-fan device and sirocco fan device.
  • the turbo-fan device and the sirocco fan device have been used for blower for burning gas in boiler (Ref. Conventional blower shown as below).
  • blower 100 There is shown a blower 100 as in fig. 12 to fig. 14.
  • This blower 100 consists of the casing 102 being composed of the circular casing lid 118 and the casing main 120, and the molded motor 104 which is fixed on the bottom side of the casing 102.
  • the inlet 106 is opened at the upper side of the casing 102, the outlet 108 is opened on the outer circumference, and the fan 110 is prepared inside.
  • This fan 110 is connected the rotary axis 112, and if the molded motor 104 rotates, then the fan 110 also rotates, and the air sucked axially through the inlet 106 blows out of the outlet 108.
  • a plurality of bosses 114 are extruded by embossing at the bottom of internal side in order to fix the molded motor 104 with the bottom of casing 102. Furthermore, at the top of internal side of the casing, there are also prepared the bosses 116 so as to install on the boiler.
  • the bosses 114, 116 cause the turbulence in the casing 102 when the fan 110 is turned on whereby this turbulence causes resistance and load on the blower 100.
  • This invention presents the blower whereby turbulence caused by bosses is held down, improves the efficiency of the blower, and oscillation from motor is not transmitted to casing.
  • the fan being connected with the axis of motor being arranged inside the casing, the inlet being opened at upper side of the casing, the outlet being opened roundly, the foregoing motor being set under the bottom of the aforementioned casing, the foregoing fan being rotated by the foregoing motor, the foregoing inlet sucking air to the direction of the axis, the air blowing out from the outlet prepared roundly, characterized that the rib is formed upper side of the inner side of the foregoing casing, otherwise; the rib is formed so that it has a plurality of the bosses extruding out of the lower side, the plain view of the foregoing rib is cylindrical shape with a center of the foregoing rotary axis.
  • the fan being connected with the axis of motor being arranged inside the casing, the inlet being opened at upper side of the casing, the outlet being opened roundly, the foregoing motor being set under the bottom of the aforementioned casing, the foregoing fan being rotated by the foregoing motor, the foregoing inlet sucking air to the direction of the axis, the air blowing out from the outlet prepared roundly, characterized that the rib is formed upper side of the inner side of the foregoing casing, otherwise; the rib is formed so that it has a plurality of the bosses extruding out of the lower side, the plain view of the foregoing rib is plural, and cylindrical shape with a center of the foregoing rotary axis.
  • the fan being connected with the axis of motor being arranged inside the casing, the inlet being opened at upper side of the casing, the outlet being opened roundly, the foregoing motor being set under the bottom of the aforementioned casing, the foregoing fan being rotated by the foregoing motor, the foregoing inlet sucking air to the direction of the axis, the air blowing out from the outlet prepared roundly, characterized that the casing lid is prepared so as to cover a plurality of bosses extruding the bottom or upper side of the inner side of the foregoing casing.
  • the fan being connected with the axis of motor being arranged inside the casing, the inlet being opened at upper side of the casing, the outlet being opened roundly, characterized that the external shape of the plural bosses extruding from the upper side or bottom side in the casing is streamlined along with the flow of the air.
  • the foregoing plural bosses extrude the out of the bottom side of the foregoing casing and screw hole is tapped to fix the foregoing motor with by screw that is characterized in at least one of claim 1 to claim 4.
  • the foregoing plural bosses extrude from the upper side of the foregoing casing and there are screw holes to fix the other member that is characterized in at least one of claim 1 to claim 4.
  • the foregoing motor is built-in the motor frame, the foregoing motor frame is fixed under the foregoing casing, the elastic member is prepared between the foregoing and the motor that is characterized in at least one of claim 1 to claim 4.
  • the fan being connected with the axis of motor being arranged inside the casing, the inlet being opened at upper side of the casing, the outlet being opened roundly, the foregoing motor being set under the bottom of the aforementioned casing, the foregoing fan being rotated by the foregoing motor, the foregoing inlet sucking air to the direction of the axis, the air blowing out from the outlet prepared roundly, characterized that the foregoing motor is built-in the motor frame and there is prepared a elastic member between the foregoing motor frame and the motor.
  • the foregoing motor is molded motor that is characterized in at least one of claim 1 to claim 8.
  • the foregoing motor is brushless DC motor.
  • the blower 10 consists of almost cylindrical casing 12, motor frame 14 being fixed to the bottom side of casing 12 and motor 16 accommodated in the motor frame 14.
  • Molded motor 16 is 3-phase brushless DC motor. Ring-like stator 18 and ring-like circuit board 20 are formed in one unit with mold resin to make molded motor casing 22. Meanwhile, the output-side bracket 24 is also formed in one unit when they are formed in one unit.
  • rotor 26 with rotary axis 27 is arranged in the cylindrical space of motor casing 22 in the cylindrical space of motor casing 22, rotor 26 with rotary axis 27 is arranged. This rotor 26 is supported by output-side bracket 24 and counter-output-side bracket 28, there is prepared bearing 30 in between output bracket 24 and there is prepared bearing 32 in between output bracket 28.
  • This molded motor 16 is accommodated in the cup-like metal molded motor frame 14.
  • the motor frame 14 and the molded motor are fixed underside of the casing 12 with screws 36.
  • the elastic member 40 which is ring-like cushion is prepared.
  • Casing 12 consists of the casing main 42 and the casing lid 44 which is covered on the casing main 42.
  • the inlet 46 is open to suck the air.
  • the outlet 48 is prepared as shown in fig.3.
  • This casing main 42 and the casing 44 are fixed with screws 52 via O-ring.
  • the fan 54 is accommodated in the casing 12 and connected to the rotary axis 27 of the molded motor 16.
  • the fan 54 When the rotary axis 27 rotates, the fan 54 also turns, and then the air is sucked axially, the air is blown out of the outlet 48 being prepared on the external surface.
  • the first and the second embodiment differ as below.
  • the first difference is that the motor casing 22 of the molded motor 16 is directly fixed on the bottom of the casing 12.
  • the second difference is the shape of the cylindrical lower rib 58 and upper rib 62.
  • the thickness of the lower rib 58 becomes thick and at the stage of embossing, there is an anxiety of shrinkage cavity at embossing as well as the upper rib 62.
  • the lower rib 58 and the upper rib 62 make dual structure, and a plurality of cylindrical and concentric lower rib 58a, 58b and the upper rib 62a, 62b constructs the foregoing structure whereby cylindrical rib becomes thin and then the shrinkage cavity is gone.
  • This cylindrical rib is not restricted in the dual structure, that is, more than triple is possible on the condition that they are concentric not to cause air turbulence.
  • Difference between the second embodiment and this embodiment is in the preventive structure to the turbulence.
  • ring-like lid plate 64 so as to cover the three lower bosses 56. Meanwhile, regarding eight upper bosses 60 being on the casing 12, ring-like lid plate 66 covers these.
  • Difference between the second embodiment and this embodiment is in the preventive structure to the turbulence caused by the lower bosses 56 and the upper bosses 60.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP05009373A 2004-04-30 2005-04-28 Lüfter Withdrawn EP1591668A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004136789A JP2005315236A (ja) 2004-04-30 2004-04-30 送風機
JP2004136789 2004-04-30

Publications (1)

Publication Number Publication Date
EP1591668A1 true EP1591668A1 (de) 2005-11-02

Family

ID=34935912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05009373A Withdrawn EP1591668A1 (de) 2004-04-30 2005-04-28 Lüfter

Country Status (2)

Country Link
EP (1) EP1591668A1 (de)
JP (1) JP2005315236A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010116811A (ja) * 2008-11-12 2010-05-27 Panasonic Corp 送風装置
JP5542731B2 (ja) * 2011-04-18 2014-07-09 三菱電機株式会社 空気調和装置
JP2013015097A (ja) * 2011-07-05 2013-01-24 Saginomiya Seisakusho Inc 空気調和機用排水ポンプ
KR102108925B1 (ko) * 2013-05-20 2020-05-12 현대자동차(주) 회전장치의 밸런싱 및 조립 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995032363A1 (en) * 1994-05-25 1995-11-30 Tec Air, Inc. Blower housing
EP0924436A2 (de) * 1997-12-17 1999-06-23 L.N. di NATALINI LINO & C. - S.r.l. Lüftergehäuse
DE10017808A1 (de) * 1999-11-19 2001-06-13 Motoren Ventilatoren Gmbh Gehäuse für einen Lüfter, insbesondere Radiallüfter
US6318358B1 (en) * 2000-08-03 2001-11-20 Jackel Incorporated Furnace blower with double sided impeller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995032363A1 (en) * 1994-05-25 1995-11-30 Tec Air, Inc. Blower housing
EP0924436A2 (de) * 1997-12-17 1999-06-23 L.N. di NATALINI LINO & C. - S.r.l. Lüftergehäuse
DE10017808A1 (de) * 1999-11-19 2001-06-13 Motoren Ventilatoren Gmbh Gehäuse für einen Lüfter, insbesondere Radiallüfter
US6318358B1 (en) * 2000-08-03 2001-11-20 Jackel Incorporated Furnace blower with double sided impeller

Also Published As

Publication number Publication date
JP2005315236A (ja) 2005-11-10

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