US3229897A - Ventilator - Google Patents

Ventilator Download PDF

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Publication number
US3229897A
US3229897A US336975A US33697564A US3229897A US 3229897 A US3229897 A US 3229897A US 336975 A US336975 A US 336975A US 33697564 A US33697564 A US 33697564A US 3229897 A US3229897 A US 3229897A
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United States
Prior art keywords
housing
tubular member
central portion
flange
ventilator
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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.)
Expired - Lifetime
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US336975A
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English (en)
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Papst Hermann
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    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • 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

Definitions

  • the present invention relates to ventilators, especially to such types of ventilators that are used for cooling electric apparatus.
  • numerous types of Ventilators have already become known.
  • the ventilator comprises a housing provided with spokes and a central portion supported on the spokes, and a motor with external rotor having fan blades on its outside, said motor being mounted on a flanged pipe which is fixed to the central portion of said housing by an easily detachable connection, whereas the stator of said motor is situated on the outside lof the flanged pipe, and the radial bearings as well as an axial bearing of the shaft of said rotor being arranged within said flanged pipe.
  • the axial bearing is clamped in between the flange of the flanged pipe and the central portion of the housing, preferably by screws.
  • the axial bearing may be arranged to form together with the central portion of the housing and the flange of the pipe an oil-proof sealing for the bearings.
  • bellshaped rotor housing with fan blades on its outside and a ring of hysteresis material on its inside.
  • FIG. l is a sectional view of the ventilator taken along line A-B of FIG. 2,
  • FIG. 2 is a partial elevated view of the ventilator
  • FIG. 3 is a sectional view of the ventilator wheel and its shaft
  • FIG. 4 is an elevated view of the stator of the motor
  • FIG. 5 is a sectional View of parts of the axial bearing
  • FIG. 6 is a sectional view of the assembled motor, the external rotor carrying fan blades,
  • FIG. 7 is a sectional view of the ventilator housing
  • FIG. 8 is a partly sectional view of means for fixing the motor within the ventilator housing
  • FIG. 9 is a sectional view of a spring for fixing the filter
  • FIG. 10 is a fragmentary view of a detail
  • FIG. 11 is a sectional view of a modification of the ventilator wheel.
  • FIGS. 38 are illustrated in a reduced scale.
  • Stator 4 with winding, protected by an insulating cover 5, is mounted on a flanged pipe 6, which serves as support.
  • This flanged pipe contains on the inside two radial bearings 7 in which shaft 8 rotates together with hub 9, rotor 11 and attached blades 12. T-he rotor and the stator are assembled separately by fixing the bearing rings 13, 14 on shaft 8 by means of a snap ring 15.
  • This construction offers the advantage that the motor can separately be inspected, measured and tested with high tension. Especially it is possible to balance the rotor after assembly so that even small asymmetries caused by magnetic forces can be compensated.
  • stator 4 together with bearing housing 6 and bearings 7 can separately be ground by means of a center pin, so that in a simple manner very high accuracy may be obtained. Motors of such an embodiment run without the well-known humming noise.
  • Flange 16 of stator bearing 6 is fixed by screws 17 to the central portion 3 of ventilator housing 1.
  • a flange cover 3 may be inserted into the central portion 3 according to FIG. 8.
  • the motor with its external rotor represents a complete unit, it may therefore be combined with various housing types respectively supporting arms. In this way an extend application is obtained together with a simplification of the storage problem and an improvement of the manufacture of the motor by reducing the number of different types. Furthermore it is a considerable advantage, that when using such ventilators only a stator or eventually the motor has to be kept on stock as spare parts. As the reliability of electronic units requires high safety, it is of great importance to maintain the security of operation of the auxiliary devices that is to say of the ventilators.
  • FIG. 1 The lower part of FIG. 1 is a section B through a corner of the housing.
  • housing 1 By means of sloping corner walls 20 housing 1 is enlarged on both sides to a square profile.
  • the blower is considerably improved in regard to air pressure and amount of air flow but the size and dimensions of the blower do not exceed the square closely surrounding the diameter of the ventilator wheel.
  • the free space for the air is enlarged.
  • the fixing means of the ventilator are used also to fix the protection grid.
  • housing 1 is fixed by screws 23 to wall 22 of an electric apparatus which is not shown in detail.
  • a square hole in wall 22 is sufficient as the screws in the corners can be tightened owing to the supporting effect of frame 24 of protection grid 25.
  • the protection grid and its frame may be fixed on either side of the ventilator.
  • a filter 26 with protection grid 27 and additional frame 28 can be simply attached and fixed by means of springs 29.
  • the springs, the protection grid and its frame are fixed and tensioned by means of screws 23.
  • the tensioned springs are acting diagonally in outward direction against the corners of frame 28. In this way frame 28 is mounted under tension and therefore the filter frame will always fit well along its edges.
  • Frame 28 can be made of weak material as cheap, s0- called throw-away piece without the danger of losing its correct shape. Screw 23 keeps spring 29 in a stamped corner of frame 24 and prevents said spring from being twisted. This can be seen more detailed in FIGS. 9 and l0.
  • FIG. 3 shows the ventilator wheel respectively the rotor with its fan blades before being mounted into stator 4, shown i-n FIG, 4. These parts are connected by means of bearing rings 13 and 14 and snap ring 15, shown in FIG. 5.f
  • the complete motor-ventilator is then inserted into the ventilator housing shown in FIG. 7 and is xed there by means of flange cover 3 and screws 17; ange 3 being clamped in between ange 16 and flange cover 3.
  • a cover 18 forming a thrust bearing is mounted between flange 16 and the central portion 3, respectively 3 of the housing.
  • a ventilator according to the invention with outstanding efficiency is obtained by providing the rotor with a ring 11' of hysteresis material (see FIG. 11) instead of a cage.
  • a ring of soft iron which is, at least at one side, provided with a copper ring in order to improve its conductivity.
  • the number of revolutions may be increased by reducing the cross section of the iron ring by means of external cuts at a distance equal to that of the poles.
  • a ventilator comprising, in combination, a housing ⁇ having a plurality of substantially radially extending spokes and a central portion supported on said spokes; a tubular member having a flange at one end abutting against said central portion of said housing; releasable .connecting means connecting said ange to said central portion of said housing; a cover extending transversely vover said oneend of said tubular member and partly over said flange thereof and being clamped by said connecting means between said flange and said central portion of said housing; axially spaced Vbearing means supported in said VYtubular member; stator means fixed to the outer surface ⁇ of said :tubular member and projecting radially therefrom; a shaft turnably mounted in said bearing means and projecting with one end thereof beyond the other .end of said tubular member, the other end of said shaft engaging said cover Vso that the latter forms a thrust bearing for said shaft; and rotor meanssurrounding said stator means, said rotor means
  • a ventilator comprising, in combination, a housing having a plurality of substantially radially extending spokes and a central portion supported on said spokes; a tubular member having a flange at one end abutting -against said central portion of said housing; releasable connecting means connecting said flange to said central portion of said housing; a cover extending transversely over said one end of said tubular member and partly over said vflange thereof and being clamped by said connecting means between said flange and said central portion of .said housing, said cover forming an oil-proof seal at said one end of said tubular member; axially spaced bearing means supported in said tubular member; stator means -xed to the outer surface of said tubular member and -projecting radially therefrom; a shaft turnably mounted in said bearing means and projecting with one end thereof beyond the other end of said tubular member, the other end of said shaft engaging said cover so that the latter forms a thrust bearing for said shaft; and rotor
  • a ventilator comprising, in combination, a housing having a plurality of substantially radially extending spokes and a central portion supported on said spokes, said spokes being shaped as guide vanes; a tubular member having a ange at one end abutting against said central portion of said housing; releasable connecting means connecting said flange to said central portion of said housing; axially spaced bearing means supported in said tubular member; stator means xed to the outer surface of said tubular member an-d projecting radially therefrom; a shaft turnably mounted in said bearing means and projecting with one end thereof beyond the other end of said tubular member; rotor means surrounding said stator means, said rotor means having a transverse portion fixed to said one Vend of said shaft for rotation there- With and a plurality of fan blades substantially radially projecting from the outer peripheral surface of said rotor means; and a cover clamped between said ange and said central portion of said housing, said cover having a portion extending into said one
  • a ventilator comprising, in combination, a housing having a plurality of substantially radially extending spokes and a central portion supported on said spokes; a tubular member having a flange at one end abutting against said central portion of said housing; releasable connecting means connecting said ange to said central portion of said housing; axially spaced bearing means supported in said tubular member; stator means fixed to the outer surface of said tubular member and projecting radially therefrom; a shaft turnably mounted in said bearing means and projecting with one end thereof beyond the other end of said tubular member; rotor means including a cup-shaped member having a transverse por- -tion xed to said one end of said shaft and an annular portion surrounding said stator means radially spaced therefrom, a ring of hysteresis material fixed to the inner surface of said annular portion, and a plurality of fan blades radially projecting from the outer peripheral surface of said annular portion; and a cover clamped between said

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US336975A 1963-01-14 1964-01-10 Ventilator Expired - Lifetime US3229897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0030937 1963-01-14

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US3229897A true US3229897A (en) 1966-01-18

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US336975A Expired - Lifetime US3229897A (en) 1963-01-14 1964-01-10 Ventilator
US544040A Expired - Lifetime US3362627A (en) 1963-01-14 1966-04-20 Ventilator

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US544040A Expired - Lifetime US3362627A (en) 1963-01-14 1966-04-20 Ventilator

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US (2) US3229897A (enrdf_load_stackoverflow)
GB (1) GB1043213A (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378192A (en) * 1966-12-20 1968-04-16 Imc Magneties Corp Means for securing the impeller to the motor of an electrically driven fan
US3604962A (en) * 1969-09-11 1971-09-14 Rotron Inc Motor bearing and fan construction
DE2102679A1 (de) * 1971-01-21 1972-08-03 Papst Motoren Kg Elektromotor, insbesondere Kleinmotor
US3700358A (en) * 1969-12-24 1972-10-24 Papst Motoren Kg Fan assembly for a ventilator
US3777191A (en) * 1971-01-08 1973-12-04 Papst Motoren Kg Dynamo electric machine construction
JPS4975756U (enrdf_load_stackoverflow) * 1972-10-19 1974-07-01
US4130770A (en) * 1974-02-26 1978-12-19 Papst-Motoren Kg Axial flow fan having improved axial length structure
US4430590A (en) 1982-02-05 1984-02-07 Msl Industries, Inc. Electric motor with unitary rotor housing
US4564335A (en) * 1979-10-06 1986-01-14 Papst-Motoren Gmbh & Co. Kg Axial flow fan
US4734015A (en) * 1982-07-24 1988-03-29 Papst-Motoren Gmbh & Co. Kg Axial-flow fan
US5028216A (en) * 1982-11-09 1991-07-02 Papst-Motoren Gmbh & Co. Kg Miniaturized direct current fan
EP0542213A3 (enrdf_load_stackoverflow) * 1991-11-14 1994-08-03 Licentia Gmbh
US5343104A (en) * 1992-05-27 1994-08-30 Nippon Densan Corporation Fan motor
US6916160B2 (en) * 2000-04-28 2005-07-12 Minebea Kabushiki-Kaisha Axial electric fan blower with electric components housing sealed from moisture, dirt and dust or other harmful gas
CN100434722C (zh) * 2007-03-22 2008-11-19 西安交通大学 一种离心风机叶轮的接触式自适应进口密封
WO2016107346A1 (zh) * 2014-12-31 2016-07-07 深圳市艾特网能有限公司 风机单元及机房空调
CN110206744A (zh) * 2014-05-22 2019-09-06 台达电子工业股份有限公司 马达

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1576254A (enrdf_load_stackoverflow) * 1967-08-23 1969-07-25
US4128364A (en) * 1972-11-23 1978-12-05 Papst-Motoren Kg Radial flow fan with motor cooling and resilient support of rotor shaft
CH611983A5 (enrdf_load_stackoverflow) * 1974-11-18 1979-06-29 Papst Motoren Kg
DE2652642A1 (de) * 1976-11-19 1978-05-24 Papst Motoren Kg Axialventilator mit der aussenkontur eines ein paar quadratische begrenzungsflaechen aufweisenden quaders
CH619571A5 (enrdf_load_stackoverflow) * 1977-08-11 1980-09-30 Papst Motoren Kg
DE2940650A1 (de) * 1979-10-06 1981-04-16 Papst-Motoren Kg, 7742 St Georgen Axialventilator
FR2497883B1 (fr) * 1981-01-09 1985-12-13 Etri Sa Ventilateur electrique axial de type plat
GB2133082B (en) * 1982-11-09 1987-05-13 Papst Motoren Gmbh & Co Kg Miniaturized direct current fan
DE3404466A1 (de) * 1984-02-08 1985-08-08 Ebm Elektrobau Mulfingen Gmbh & Co, 7119 Mulfingen Aussenlaeufermotor
DE3542214A1 (de) * 1984-12-03 1986-06-05 Papst-Motoren GmbH & Co KG, 7742 St Georgen Ventilator
JPS61122397U (enrdf_load_stackoverflow) * 1985-01-21 1986-08-01
USRE34456E (en) * 1985-10-08 1993-11-23 Papst Motoren Miniature axial fan
US4806081A (en) * 1986-11-10 1989-02-21 Papst-Motoren Gmbh And Company Kg Miniature axial fan
GB2185074B (en) * 1985-11-08 1990-12-19 Papst Motoren Gmbh & Co Kg Fan
DE3609212A1 (de) * 1986-03-19 1987-09-24 Standard Elektrik Lorenz Ag Axialluefter
US4795319A (en) * 1986-11-17 1989-01-03 Popovich John M Quiet hair dryer
TWI222263B (en) * 2003-08-15 2004-10-11 Delta Electronics Inc Non-bearing motor
CA2598867A1 (fr) * 2007-07-31 2009-01-31 Ghislain Lauzon Ventilateur silencieux
US20120170882A1 (en) * 2011-01-02 2012-07-05 Asia Vital Components Co., Ltd. Fan bearing retaining structure
CA2897881C (en) * 2013-05-06 2016-08-16 Bionx Canada Inc. Construction of motorized wheel for vehicle motorization
CN104697079B (zh) * 2015-03-23 2017-04-12 宁波东大空调设备有限公司 自控节能除霾新风装置
US20170211589A1 (en) * 2016-01-22 2017-07-27 Minebea Co., Ltd. Axial Fan
CN107747558B (zh) * 2017-10-10 2024-03-08 格力电器（中山）小家电制造有限公司 挡风结构、网罩圈组件及包括网罩圈组件的风扇

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742223A (en) * 1952-12-13 1956-04-17 Font Eduardo Soler Electric propeller fans and the like
US2855141A (en) * 1955-11-25 1958-10-07 Jacobus C Van Rijn Two-piece cantilever fan and motor
DE1053645B (de) * 1957-07-29 1959-03-26 Ziehl Abegg O H G Abdichtung der feststehenden Abdeckung gegenueber dem vom Laeufer gebildeten Gehaeuse eines Aussenlaeufermotors
US2926838A (en) * 1958-10-07 1960-03-01 Jacobus Constant Van Rijn Ventilating motor and fan
US2990112A (en) * 1959-05-28 1961-06-27 Gen Motors Corp Ventilating means
US3002118A (en) * 1955-10-24 1961-09-26 Papst Hermann Rotating field motor
US3058651A (en) * 1956-08-02 1962-10-16 Mobley William Robert Air exhaust and impeller rotor for treating air to provide comfort in hot and cold weather

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* Cited by examiner, † Cited by third party
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US1051857A (en) * 1908-09-25 1913-02-04 Alexander Bertram Process of manufacture of materials for the surface coating of walls.
US2040452A (en) * 1934-03-23 1936-05-12 Troller Theodor Fan construction
US2144035A (en) * 1935-09-20 1939-01-17 Bendix Prod Corp Fan blast transformer
US2198812A (en) * 1937-06-17 1940-04-30 Burd Piston Ring Company Automobile body heater
US2573145A (en) * 1949-12-20 1951-10-30 V E Sprouse Company Inc Ventilating fan mounting structure
US2776089A (en) * 1951-02-13 1957-01-01 Lau Blower Co Blower
US2950859A (en) * 1956-12-03 1960-08-30 Meier Electric And Machine Com Fan housing and protective grill
DE1107916B (de) * 1960-05-16 1961-05-31 Linke Fa Paul Fensterluefter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742223A (en) * 1952-12-13 1956-04-17 Font Eduardo Soler Electric propeller fans and the like
US3002118A (en) * 1955-10-24 1961-09-26 Papst Hermann Rotating field motor
US2855141A (en) * 1955-11-25 1958-10-07 Jacobus C Van Rijn Two-piece cantilever fan and motor
US3058651A (en) * 1956-08-02 1962-10-16 Mobley William Robert Air exhaust and impeller rotor for treating air to provide comfort in hot and cold weather
DE1053645B (de) * 1957-07-29 1959-03-26 Ziehl Abegg O H G Abdichtung der feststehenden Abdeckung gegenueber dem vom Laeufer gebildeten Gehaeuse eines Aussenlaeufermotors
US2926838A (en) * 1958-10-07 1960-03-01 Jacobus Constant Van Rijn Ventilating motor and fan
US2990112A (en) * 1959-05-28 1961-06-27 Gen Motors Corp Ventilating means

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378192A (en) * 1966-12-20 1968-04-16 Imc Magneties Corp Means for securing the impeller to the motor of an electrically driven fan
US3604962A (en) * 1969-09-11 1971-09-14 Rotron Inc Motor bearing and fan construction
US3700358A (en) * 1969-12-24 1972-10-24 Papst Motoren Kg Fan assembly for a ventilator
US3777191A (en) * 1971-01-08 1973-12-04 Papst Motoren Kg Dynamo electric machine construction
DE2102679A1 (de) * 1971-01-21 1972-08-03 Papst Motoren Kg Elektromotor, insbesondere Kleinmotor
US3786290A (en) * 1971-01-21 1974-01-15 Papst Motoren Kg Electromotor construction
JPS4975756U (enrdf_load_stackoverflow) * 1972-10-19 1974-07-01
US4130770A (en) * 1974-02-26 1978-12-19 Papst-Motoren Kg Axial flow fan having improved axial length structure
US4564335A (en) * 1979-10-06 1986-01-14 Papst-Motoren Gmbh & Co. Kg Axial flow fan
US4430590A (en) 1982-02-05 1984-02-07 Msl Industries, Inc. Electric motor with unitary rotor housing
US4734015A (en) * 1982-07-24 1988-03-29 Papst-Motoren Gmbh & Co. Kg Axial-flow fan
US5028216A (en) * 1982-11-09 1991-07-02 Papst-Motoren Gmbh & Co. Kg Miniaturized direct current fan
EP0542213A3 (enrdf_load_stackoverflow) * 1991-11-14 1994-08-03 Licentia Gmbh
US5343104A (en) * 1992-05-27 1994-08-30 Nippon Densan Corporation Fan motor
US6916160B2 (en) * 2000-04-28 2005-07-12 Minebea Kabushiki-Kaisha Axial electric fan blower with electric components housing sealed from moisture, dirt and dust or other harmful gas
CN100434722C (zh) * 2007-03-22 2008-11-19 西安交通大学 一种离心风机叶轮的接触式自适应进口密封
CN110206744A (zh) * 2014-05-22 2019-09-06 台达电子工业股份有限公司 马达
WO2016107346A1 (zh) * 2014-12-31 2016-07-07 深圳市艾特网能有限公司 风机单元及机房空调

Also Published As

Publication number Publication date
US3362627A (en) 1968-01-09
US3362627B1 (enrdf_load_stackoverflow) 1968-01-09
GB1043213A (en) 1966-09-21

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