EP0242342A1 - Fan - Google Patents

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Publication number
EP0242342A1
EP0242342A1 EP87850096A EP87850096A EP0242342A1 EP 0242342 A1 EP0242342 A1 EP 0242342A1 EP 87850096 A EP87850096 A EP 87850096A EP 87850096 A EP87850096 A EP 87850096A EP 0242342 A1 EP0242342 A1 EP 0242342A1
Authority
EP
European Patent Office
Prior art keywords
opening
fan
motor housing
housing unit
unit
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Withdrawn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
EP87850096A
Other languages
German (de)
English (en)
French (fr)
Inventor
John Adolf Mannerblad
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.)
PAX ELECTRO PRODUCTS AB
Original Assignee
PAX ELECTRO PRODUCTS AB
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 PAX ELECTRO PRODUCTS AB filed Critical PAX ELECTRO PRODUCTS AB
Publication of EP0242342A1 publication Critical patent/EP0242342A1/en
Withdrawn legal-status Critical Current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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans

Definitions

  • the invention refers to a fan adapted for mounting on a support means such as a wall, and which comprises an electric motor fed by a supply main and carrying on its output shaft a fan impeller.
  • a fan impeller For'such maintenance and repair work which can not be done on the spot, the fan must be taken down from the wall and transported to a workshop. This was up now rather intricate , because it was necessary, after switching off the feeding current, to disconnect the fan from the supply main and to screw loose the entire fan housing from the wall.
  • the uninsulated ends of the supply main which thus became freely accessible, had to be temporarily insulated, or the respective main section had to be cut off during the whole duration of the repair work.
  • the first part is defined by a square block with a circular central opening
  • the other part is defined by a square frame, the outer periphery of which corresponds to the outer periphery of the block, and in the square opening of said frame is a cylindrical motor housing suspended with the aid of a U-shaped yoke bridging the.whole square opening.
  • the frame is attached to the block by means of four screw connections defined by screws located in the corners of the block arid which pass through corresponding holes provided in the four corners of the frame.
  • the electrical contact is obtained by means of two contact tongues protruding from the frame and which are introduced into corresponding contact appertures in the block.
  • Screw connections demand generally a tool, such as a screw driver or a span, to be released as well as tightened. It is an object of the present invention to provide a fan of the aforesaid kind, i.e. one which is divided into two parts, in which the two parts can be disassembled and reassembled in a more simple way because, in principle, no screw connection at all is needed, or, if even a locking function is desired, only one such connection is necessitated.
  • the fan according to the present invention comprises two.quite independent construction parts, viz. an attachment unit 10 and a motor housing unit 20.
  • the attachment unit 10 comprises a bottom part 11 defined by a planar plate 11 which is adapted to be with its rear side or face, i.e. the one which is turned away and not visible in the drawing, applied against a support, e.g. a wall, and affixed thereto by means of mounting screws, not shown, which pass through smooth (i.e. not threaded) openings 10' and are screwed in into e.g. plugs provided in bores in the respective wall.
  • an opening 12 provided which has an inner width or inner diameter D and a circular periphery 12a.
  • the attachment unit 10 is.located at such a place on the wall (not shown), where the orifice of an air duct (having a diameter at least so.large as the opening 12) will be centered relative to the said opening.
  • the motor housing unit 20 has the shape of a cylinder or a pot with an outer diameter d which is smaller than the diameter D of the opening 12.
  • an electrical motor (not shown) fixed, to the output shaft of which,not shown, but having a centre line C, a fan impeller 25 is attached.
  • Three carrier arms 21a, 21b and 21c arranged at selected spacement one from another, in the example shown at 135° and (between the arms 21a and 21b) 90°, project radially from the periphery 22a of the bottom part 22 of the motor housing unit 20.
  • the free ends of the carrier arms are shaped into small plates 21a', 21b' and 21c' which are considerably thinner than the remaining parts 21a", 21b" and 21c" of the carrier arms.
  • Said parts 21a", 21b” and 21c" are actually dimensioned so that the transitional edges, such as 21a'" or 21c"', between them and the parts 21a', 21b' lie on a fictious circle with the diameter D.
  • the parts 21a', 21b' and 21c' embody fixing means which together with co-operating fixing means on the attachment unit 10 define a readily assemblable and readily dismountable fixing device for fastening the.motor housing unit 20 to the attachment unit 10.
  • the fixing means on the attachment unit are located along the periphery 12a and are, in the example shown, embodied by the two hook means 31a, 31b and one threaded hole 31c.
  • the motor housing unit 20 Upon assembly, the motor housing unit 20 is introduced into the opening 12 in the sense of arrow F, and the parts 21a' and 21b' are by a small rotation about the axis C in the sense of arrow G brought under the hooks 31a and 31b until they abut. Hole 26 in the part 21c' will then be aligned with the threaded hole 31c and a locking screw 26' may be screwed in.
  • a guiding wall 31b', adjacent the hook means 31, contributes to unambigously define the position of the motor housing unit 20 relative the attachment unit 10.
  • the fixing device consists thus of the two pairs of elements 21a', 31a and 21b', 31b respectively which embody a bayonet joint, and of the elements 21c", 26, 26', 31c which define a combined fixing and locking means.
  • the purpose of the locking function is to make sure that the motor housing unit 20 .cannot get loose, e.g. due vibrations etc.
  • a peripheric.edge 11a defining a sort of frame along the whole bottom part 11, projects from the forward face 11' of the bottom part 11.
  • Two minor inner spaces A and B are detached by two inner separating walls 11b, 11c which have the same height as the peripheric edge 11a.
  • a terminal block 14 is mounted in the space A, and the supply main 15 is connected to the block via a stress-reliever 14a.
  • the motor housing unit 20 is provided with a connecting cable 27 which inside the motor housing unit is connected to the fan's electric motor and which at its other, free end carries a contact means 24 with two contact pins which may be introduced into corresponding contact bushes in the terminal block 14 and possibly fastened by screws (a third bushing is provided in the terminal block 14 for a possible time regulator , in which case the.corresponding means may be accommodated in space.B). Lips 16a are provided to fix the various cable means.
  • a cover 16 by which the whole attachment unit 10 may be covered, primarily out of aesthetic reasons.
  • the cover 16 may be readily mounted and dismounted (much in the same way as the cover of the batteries compartment in certain domestic electronic appliances) with the aid of screws (not shown) which are screwed in into holes 10".
  • the cover is adapted, e.g. by means of an own peripheric edge, which may be set on the peripheric edge 11a of the attachment unit, to lie at such a distance from the bottom part 11' that elements such as 14, 31a, 31b etc., mounted on the bottom part, may be accommodated in the interspace.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP87850096A 1986-04-17 1987-03-24 Fan Withdrawn EP0242342A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8601748A SE8601748L (sv) 1986-04-17 1986-04-17 Flekt
SE8601748 1986-04-17

Publications (1)

Publication Number Publication Date
EP0242342A1 true EP0242342A1 (en) 1987-10-21

Family

ID=20364225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87850096A Withdrawn EP0242342A1 (en) 1986-04-17 1987-03-24 Fan

Country Status (5)

Country Link
EP (1) EP0242342A1 (da)
DK (1) DK193087A (da)
FI (1) FI871690L (da)
NO (1) NO871522L (da)
SE (1) SE8601748L (da)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249135A (en) * 1990-10-03 1992-04-29 Mars G B Ltd A centrifugal impeller
EP0591665A1 (de) * 1992-10-09 1994-04-13 Bosch-Siemens HausgerÀ¤te GmbH Gehäuse zur Aufnahme eines elektrischen Gerätes
TR27590A (tr) * 1993-11-15 1995-06-13 Bosch Siemens Hausgeraete Bir elektrikli cihazi icine almaya mahsus mahfaza.
EP0704626A3 (en) * 1994-09-29 1997-10-22 Valeo Thermique Moteur Sa Fan mounting arrangement
GB2344379A (en) * 1998-12-10 2000-06-07 Greenwood Air Management Limit Electric fan with modular control and electrical connector.
WO2000036304A1 (es) * 1998-12-16 2000-06-22 Soler Y Palau, S.A. Perfeccionamientos introducidos en los extractores ultracompactos para baños
WO2003078847A1 (en) 2002-03-15 2003-09-25 Arçelik A.S. Fan housing
GB2430468A (en) * 2006-06-01 2007-03-28 Vent Axia Ltd Heat recovery unit fan motor mounting
WO2006130524A3 (en) * 2005-06-01 2007-06-21 Hewlett Packard Development Co A removable fan for electronic devices
WO2011131423A1 (de) * 2010-04-19 2011-10-27 Rittal Gmbh & Co. Kg Luftführungseinheit
GB2564119A (en) * 2017-07-03 2019-01-09 Vent Axia Group Ltd A chassis for mounting an electric motor and ventilation apparatus incorporating the same
GB2568235A (en) * 2017-10-30 2019-05-15 Zehnder Group Lenham Ltd Fixing plates
JP2020159597A (ja) * 2019-03-26 2020-10-01 パナソニックＩｐマネジメント株式会社 加湿装置
DE102019129588A1 (de) * 2019-11-04 2021-05-06 Miele & Cie. Kg Gebläse, umfassend ein Gehäuse und einen Motor
GB2610150A (en) * 2017-10-30 2023-02-22 Zehnder Group Uk Ltd Fixing plates

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201046A (en) * 1922-08-01 1923-07-26 John Dawson Smith Improvements in ceiling mountings for electric fans
US1684144A (en) * 1926-08-27 1928-09-11 Bruce C Rettig Ceiling-fan hanger
US4353680A (en) * 1979-06-19 1982-10-12 Tokyo Shibaura Denki Kabushiki Kaisha Exhaust fan with removable face cover

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201046A (en) * 1922-08-01 1923-07-26 John Dawson Smith Improvements in ceiling mountings for electric fans
US1684144A (en) * 1926-08-27 1928-09-11 Bruce C Rettig Ceiling-fan hanger
US4353680A (en) * 1979-06-19 1982-10-12 Tokyo Shibaura Denki Kabushiki Kaisha Exhaust fan with removable face cover

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2249135A (en) * 1990-10-03 1992-04-29 Mars G B Ltd A centrifugal impeller
EP0591665A1 (de) * 1992-10-09 1994-04-13 Bosch-Siemens HausgerÀ¤te GmbH Gehäuse zur Aufnahme eines elektrischen Gerätes
TR27590A (tr) * 1993-11-15 1995-06-13 Bosch Siemens Hausgeraete Bir elektrikli cihazi icine almaya mahsus mahfaza.
EP0704626A3 (en) * 1994-09-29 1997-10-22 Valeo Thermique Moteur Sa Fan mounting arrangement
GB2344379A (en) * 1998-12-10 2000-06-07 Greenwood Air Management Limit Electric fan with modular control and electrical connector.
EP1008762A3 (en) * 1998-12-10 2001-05-16 Société ETEX de recherches Techniques Electric fan and electrical connector
GB2344379B (en) * 1998-12-10 2002-12-11 Greenwood Air Man Ltd Electric fan and electrical connector
WO2000036304A1 (es) * 1998-12-16 2000-06-22 Soler Y Palau, S.A. Perfeccionamientos introducidos en los extractores ultracompactos para baños
WO2003078847A1 (en) 2002-03-15 2003-09-25 Arçelik A.S. Fan housing
US7959419B2 (en) 2005-06-01 2011-06-14 Hewlett-Packard Development Company, L.P. Removable fan for electronic devices
WO2006130524A3 (en) * 2005-06-01 2007-06-21 Hewlett Packard Development Co A removable fan for electronic devices
GB2430468B (en) * 2006-06-01 2007-08-29 Vent Axia Ltd Improvements in or relating to a heat recovery unit
GB2430468A (en) * 2006-06-01 2007-03-28 Vent Axia Ltd Heat recovery unit fan motor mounting
WO2011131423A1 (de) * 2010-04-19 2011-10-27 Rittal Gmbh & Co. Kg Luftführungseinheit
US9374914B2 (en) 2010-04-19 2016-06-21 Rittal Gmbh & Co. Kg Air guidance unit
GB2564119B (en) * 2017-07-03 2021-12-22 Vent Axia Group Ltd A chassis for mounting an electric motor and ventilation apparatus incorporating the same
GB2564119A (en) * 2017-07-03 2019-01-09 Vent Axia Group Ltd A chassis for mounting an electric motor and ventilation apparatus incorporating the same
GB2568235A (en) * 2017-10-30 2019-05-15 Zehnder Group Lenham Ltd Fixing plates
GB2568235B (en) * 2017-10-30 2023-02-01 Zehnder Group Uk Ltd Fixing plates
GB2610150A (en) * 2017-10-30 2023-02-22 Zehnder Group Uk Ltd Fixing plates
GB2610150B (en) * 2017-10-30 2023-05-31 Zehnder Group Uk Ltd Fixing plates
JP2020159597A (ja) * 2019-03-26 2020-10-01 パナソニックＩｐマネジメント株式会社 加湿装置
JP7213420B2 (ja) 2019-03-26 2023-01-27 パナソニックＩｐマネジメント株式会社 加湿装置
DE102019129588A1 (de) * 2019-11-04 2021-05-06 Miele & Cie. Kg Gebläse, umfassend ein Gehäuse und einen Motor

Also Published As

Publication number Publication date
FI871690A7 (fi) 1987-10-18
FI871690L (fi) 1987-10-18
DK193087A (da) 1987-10-18
SE8601748D0 (sv) 1986-04-17
NO871522D0 (no) 1987-04-10
SE8601748L (sv) 1987-10-18
FI871690A0 (fi) 1987-04-16
NO871522L (no) 1987-10-19
DK193087D0 (da) 1987-04-14

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

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Effective date: 19880413

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Effective date: 19890316

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19900607

R18W Application withdrawn (corrected)

Effective date: 19900607

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MANNERBLAD, JOHN ADOLF