EP1158176A1 - Rastverbindung für ein Spiralgehäuse - Google Patents

Rastverbindung für ein Spiralgehäuse Download PDF

Info

Publication number
EP1158176A1
EP1158176A1 EP01108818A EP01108818A EP1158176A1 EP 1158176 A1 EP1158176 A1 EP 1158176A1 EP 01108818 A EP01108818 A EP 01108818A EP 01108818 A EP01108818 A EP 01108818A EP 1158176 A1 EP1158176 A1 EP 1158176A1
Authority
EP
European Patent Office
Prior art keywords
guide
component according
height
web
guide groove
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
EP01108818A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1158176B1 (de
Inventor
Gunter Dipl.-Ing. Streng (Fh)
Bernhard Bamberger
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.)
Ebm Werke GmbH and Co KG
Original Assignee
Ebm Werke GmbH and Co 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 Ebm Werke GmbH and Co KG filed Critical Ebm Werke GmbH and Co KG
Publication of EP1158176A1 publication Critical patent/EP1158176A1/de
Application granted granted Critical
Publication of EP1158176B1 publication Critical patent/EP1158176B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • 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

Definitions

  • the invention relates to a component made of at least one plastic element and at least one metallic stamping element with at least one boundary edge, which is guided in a guide of the plastic element.
  • Components of this type are, for example, components of housings, in particular of Spiral casing for radial blowers. These consist of two side parts Plastic and a metal casing, which is in the guide grooves of the side parts is held. To produce the casing, it is made of a metallic Sheet metal punched out. The punching process creates an edge on one side a rounded shape and on the other side in the punching direction has protruding punch burr.
  • This punching ridge is when assembling the Housing shell with the plastic side parts - especially when inserting into the narrow Guide groove - a hindrance, since the protruding, usually sharp-edged ridge can easily be removed hooked the nutrand.
  • the invention has for its object to provide a generic component that is simple and inexpensive to manufacture and assemble, which Plastic element and the metallic stamping element with each other without play in the Leadership should be connectable.
  • the punching element has several spaced from each other, in the direction of one which arises during the punching process Stamped burr has elevations, the distance to the boundary edge is less than the depth of the guide and its height is at least the height of the Stamped burr corresponds, the width of the guide approximately the material thickness of the Punching element plus the amount of increases.
  • the invention is based on the knowledge that the deburring of the metallic Component can then be omitted if the width of the guide of Plastic element, for example designed as a guide groove, the material thickness of the punching element plus the resulting burr.
  • the wide guide groove ensures a play-free fit Punching element according to the invention increases in the direction of the punch burr in the area the boundary edge on the inside of the assembled components the guide groove are arranged and their height is the height of the punch burr exceeds.
  • the width of the guide groove corresponds approximately to the material thickness of the Punching element plus the height of the increases.
  • the invention Increases thus enable broadening of the leadership or the Guide groove so that the deburring punching element can be inserted is unproblematic, and on the other hand a play-free connection of the Plastic element with the metallic stamping element.
  • the guide according to the invention has the an outer and an inner web is formed from the outer web molded snap hooks which engage in openings of the punching element. This "clip system" enables simple and quick installation.
  • the guide groove advantageously has at several points from the Groove base formed in the direction of the stamping element, the one Ensure axial tolerance compensation. Vibrations of the punching element or Housing shell, for example excited by a drive motor, are thereby locked out.
  • the guide groove advantageously has Joining aid on a guide web connecting the outer and the inner web, on which a notch of the stamping element is placed or in assembled state is inserted into this notch.
  • each Punching element is in front of the openings cooperating with the snap hooks of the metallic stamping element advantageously a portion of each Punching element by deformation in the direction of the elevations from the Boundary edge led out and forms a rising inclined surface. about this inclined surface will also point in the direction of the elevations Snap hooks when joining the plastic element with the metallic one Punching element raised and guided into the opening behind it.
  • the component according to the invention is that deburring is dispensed with can manufacture inexpensively. Through the guide aids and the functional clip system makes installation quick and easy. At a Use of the components as side parts and housing jacket to produce a Blower housing allows the embodiment of the invention a vibration-free Operation, because the punching element used as the casing is by spring clip vibration-damped in the axial direction and by the elevations in the radial direction.
  • FIG. 1 shows a component according to the invention, a spiral housing 1 of a radial fan in a semi-assembled state, consisting of a metal stamping element 2, designed as a sheet metal jacket, and two serving as side panels Plastic elements 4, in which there are air inlet openings 6.
  • a metal stamping element 2 designed as a sheet metal jacket
  • plastic elements 4 in which there are air inlet openings 6.
  • Not one Electric motor fan unit shown is in a motor mount 8 at the connection point three struts 10 each, which are approximately centric in the air inlet openings 6 are interconnected, can be used.
  • the sheet metal jacket is by inserting it mutually opposite boundary edges 12, in particular its Longitudinal edges, can be connected to these in guides 14 of the side parts (cf. also the Figures 2 and 3).
  • Such a guide 14 is preferably as one on the outer edge of the side parts circumferentially arranged guide groove, which by an outer web 18th and an inner web 20 is included.
  • the height of the outer web 18 exceeds the height of the inner web 20, whereby on the one hand the housing is stabilized overall and on the other hand the insertion of the Sheet metal jacket in the respective side part is facilitated.
  • Figures 2 and 3 show a section of an insertable in the guide groove or boundary edge 12 of the sheet metal jacket connected to the guide groove.
  • a burr which is the joining of the Sheet metal jacket with the side parts so hampered that a previous deburring of the Sheet metal jacket is necessary.
  • the sheet metal jacket of the spiral housing 1 according to the invention along its two boundary edges 12 several, for example dome-shaped, Elevations 16 spaced apart from one another in the direction of the punch burr are pronounced and the height of which exceeds the height of the punch burr. in the The raised portions are the assembled state of the sheet metal jacket with the side part 16 arranged within the guide groove.
  • the width of the invention corresponds approximately to the material thickness of the sheet metal jacket plus the height of the elevations 16, whereby on the one hand the introduction of the non-deburred Sheet metal jacket significantly facilitated and on the other hand a play-free connection of the Sheet metal jacket with the side part is made possible.
  • the sheet metal jacket is easy without to get caught, can be used in the guide groove, because of the elevations 16 Avoid contact of the boundary edge 12 with the inside of the inner web 20 becomes.
  • the sheet metal jacket according to the invention has opposite the snap hooks 22 in the direction of the elevations 16 rising inclined surface 30.
  • This inclined surface 30 meets as an insertion or Assembly aid when joining the two components first onto the nose of the Snap hook 22 and lifts it slightly in the opposite of the elevations 16 Direction.
  • the elevations 16 enter the guide groove, which brings the outside of the sheet metal jacket to the inside surface of the outer web 18 is pressed.
  • the snap hook 22 is moved along the inclined surface 30 and further raised to finally snap into the locking window 24 of the sheet metal jacket.
  • the guide groove Scope distributed guide webs 32 arranged. These guide webs 32 run on the groove base and connect the outer web 18 to the inner web 20.
  • the Sheet metal jacket has notches 34 lying opposite the guide webs 32, in which the guide webs 32 in the assembled state of the sheet metal jacket Extend side panels 4.
  • the guide webs 32 and the notches 34 are essentially wedge-shaped, the width of the guide webs 32 starting from the groove base 26 in the direction of Sheet metal sheath decreases.
  • the invention is not based on the illustrated and described embodiment limited, but also covers all those acting in the same sense in the sense of the invention Executions. Furthermore, the invention has not yet been based on that in claim 1 defined combination of features limited, but can also by any other any other combination of certain features of all disclosed Individual characteristics must be defined. This means that basically every single feature of claim 1 omitted or by at least one other Instead of the individual feature disclosed the application can be replaced. To that extent Claim 1 is only to be understood as a first attempt at formulation for an invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Structure And Mechanism Of Cameras (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Casings For Electric Apparatus (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP01108818A 2000-05-24 2001-04-07 Rastverbindung für ein Spiralgehäuse Expired - Lifetime EP1158176B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20009326U 2000-05-24
DE20009326U DE20009326U1 (de) 2000-05-24 2000-05-24 Rastverbindung für ein Spiralgehäuse

Publications (2)

Publication Number Publication Date
EP1158176A1 true EP1158176A1 (de) 2001-11-28
EP1158176B1 EP1158176B1 (de) 2002-11-20

Family

ID=7941958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01108818A Expired - Lifetime EP1158176B1 (de) 2000-05-24 2001-04-07 Rastverbindung für ein Spiralgehäuse

Country Status (6)

Country Link
EP (1) EP1158176B1 (ko)
AT (1) ATE228212T1 (ko)
DE (2) DE20009326U1 (ko)
ES (1) ES2185607T3 (ko)
HK (1) HK1038391A1 (ko)
PT (1) PT1158176E (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10346187A1 (de) * 2003-10-02 2005-04-21 Behr Gmbh & Co Kg Gebläse

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2067665A (en) * 1979-12-13 1981-07-30 Bosch Gmbh Robert Radial fan
EP0195149A1 (en) * 1985-03-20 1986-09-24 Curver Packaging Ltd. Container with closure
EP0540475A2 (en) * 1991-10-30 1993-05-05 E.J. Brooks Company Locking or security seal
WO1995032363A1 (en) * 1994-05-25 1995-11-30 Tec Air, Inc. Blower housing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2067665A (en) * 1979-12-13 1981-07-30 Bosch Gmbh Robert Radial fan
EP0195149A1 (en) * 1985-03-20 1986-09-24 Curver Packaging Ltd. Container with closure
EP0540475A2 (en) * 1991-10-30 1993-05-05 E.J. Brooks Company Locking or security seal
WO1995032363A1 (en) * 1994-05-25 1995-11-30 Tec Air, Inc. Blower housing

Also Published As

Publication number Publication date
EP1158176B1 (de) 2002-11-20
ATE228212T1 (de) 2002-12-15
ES2185607T3 (es) 2003-05-01
DE20009326U1 (de) 2001-09-27
HK1038391A1 (en) 2002-03-15
DE50100057D1 (de) 2003-01-02
PT1158176E (pt) 2003-03-31

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