EP2904274B1 - Carter pour un ventilateur ou une soufflante - Google Patents

Carter pour un ventilateur ou une soufflante Download PDF

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Publication number
EP2904274B1
EP2904274B1 EP13753609.0A EP13753609A EP2904274B1 EP 2904274 B1 EP2904274 B1 EP 2904274B1 EP 13753609 A EP13753609 A EP 13753609A EP 2904274 B1 EP2904274 B1 EP 2904274B1
Authority
EP
European Patent Office
Prior art keywords
section
opening
housing
housing according
area
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.)
Active
Application number
EP13753609.0A
Other languages
German (de)
English (en)
Other versions
EP2904274A2 (fr
Inventor
Thomas Sauer
Dieter Best
Tobias Ehmann
Volker Hufnagel
Sebastian Hoss
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 Papst Mulfingen GmbH and Co KG
Original Assignee
Ebm Papst Mulfingen 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 Papst Mulfingen GmbH and Co KG filed Critical Ebm Papst Mulfingen GmbH and Co KG
Publication of EP2904274A2 publication Critical patent/EP2904274A2/fr
Application granted granted Critical
Publication of EP2904274B1 publication Critical patent/EP2904274B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • 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
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • 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
    • 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 present invention relates to a housing for a ventilator or ventilator according to the preamble of claim 1.
  • a generic housing is from the DE 354 56 80 A1 known.
  • the housing, the wall ring and an existing outer diffuser form a unitary sheet metal part, which results in relatively high manufacturing costs, and in addition the individual parts are not suitable for being combined with other components.
  • the present invention is based on the object of improving a housing of the type described at the outset in such a way that there is a large variety of applications.
  • the flow channel has a first cylinder section adjoining the inflow opening and a second truncated cone section adjoining it with its smaller truncated cone surface, which widens towards the outflow opening, the holder being made up of several struts attached to the second section at one end which run from an inner circumferential surface of the second section in the direction of the longitudinal axis and have mounting sections for the electric motor at their other, inner end, as well as fastening means on an outer surface of the ring wall in the area of the inflow opening for connection to a connection part, in particular a wall ring , and fastening means in the edge region of the outflow opening for a protective grille and fastening means for fastening an outer diffuser to the housing wall in the region of the outflow opening.
  • the housing according to the invention forms a basic component which, due to its design, can be expanded to different solutions tailored to the respective customer by using different wall rings and / or adding an external or internal diffuser.
  • the inventive Housing an application for a support ring with short nozzle.
  • a central arrangement of the fan is ensured by the housing according to the invention.
  • the additional components to be connected to the housing according to the invention such as wall ring, outer diffuser and inner diffuser, can be plugged together with the housing according to the invention and can be connected to one another in a simple manner, in particular with screw connections.
  • a housing according to the invention for a fan 1 or fan, in particular an axial fan is formed from an annular housing wall 2.
  • This housing wall 2 is advantageously made of plastic.
  • the annular housing wall 2 encloses a flow channel 3 which has an inflow opening 4 and an outflow opening 6.
  • the flow channel 3 has a central longitudinal axis XX.
  • the flow channel 3 has a circular cross-section running in a perpendicular plane to its longitudinal axis XX and a motor mount 7 for an electric motor 8 of the fan 1.
  • the flow channel 3 has a first cylinder section 9 adjoining the inflow opening 4 and a smaller truncated cone surface adjoining the second truncated cone section 11, which widens towards the outflow opening 6.
  • the length of the second truncated cone section 11, measured in the direction of or in relation to the longitudinal axis XX, is preferably greater than / equal to the corresponding length of the first cylinder section 9.
  • the motor bracket 7 is made up of several with Struts 12 arranged at one end on the second truncated cone section 11 on its inner side, ie its inner circumferential surface, which extend from the inner circumferential surface of the truncated cone section 11 in the direction of the longitudinal axis XX and at their other inner ends holding absc
  • Struts 12 arranged at one end on the second truncated cone section 11 on its inner side, ie its inner circumferential surface, which extend from the inner circumferential surface of the truncated cone section 11 in the direction of the longitudinal axis XX and at their other inner ends holding absc
  • the struts 12 are designed and arranged in such a way that, starting from the inner circumferential surface of the truncated cone section 11, they have a strut section 14 running parallel to the opening plane of the outflow opening 6, on which a strut section 14 extends in the direction of the first cylindrical section 9 at an acute angle to the opening plane running, ie cranked section 16 connects.
  • the design of the cranked section 16 is such that the retaining ring 13 runs with its opening plane running perpendicular to the longitudinal axis XX in the transition area from the cylinder section 9 to the truncated cone section 11.
  • the inner diameter of the retaining ring 13 is the Outside diameter of the electric motor 8 adapted.
  • the retaining ring 13 On its front side facing the outflow opening 6, the retaining ring 13 has recesses 17 between the struts 12, which save material, and on its front side facing the inflow opening 4, the retaining ring 13 has recesses 18 which are used for connection to the electric motor 8.
  • eight equally spaced struts 12 are arranged on the inner circumference of the housing wall 2.
  • ribs 19 are formed on the inner circumferential surface of the truncated cone section 11 in the attachment region of the struts 12.
  • the sleeve-shaped projections 26 are formed on the ends of outer axially extending reinforcing ribs 27.
  • These fastening means 24 are provided in the attachment region of every second strut 12, and between the fastening means 24 there are fastening means 28 in the edge region of the outflow opening 6, namely in the end region of axially extending ribs 31 formed on the outside of the housing wall 2.
  • These fastening means 28 consist of screw-in bores for screwing in fastening screws which are formed in an inclined surface 29 rising from the edge of the outflow opening 6 to the top of the ribs.
  • an outer diffuser 34 can be attached to the housing wall 2 according to the invention in the area of the outflow opening 6.
  • This outer diffuser 34 widens from its inlet opening 36 to its outlet opening 37.
  • This outer diffuser 34 is expediently made of plastic.
  • the annular outer diffuser 34 sits with its edge region encompassing the inlet opening 36 on the opposite edge region of the truncated cone section 11, for which purpose it has a circumferential centering edge 39 at its end on its end face, which rests on the truncated cone section 11 and which includes the truncated cone section 11. How in particular Fig.
  • the outer diffuser 34 has extensions 41 on its outer wall in the area of the inlet opening 36 in the axial direction, ie in the direction of the longitudinal axis XX, which encompass a cavity so that they interact with the ribs 31 in the area of the inclined surface 29 that a plug-in connection is formed between the ribs 31 and the extensions 41 and a screw fastening can take place by means of screws through holes located in the extensions 41, which correspond to the fastening means 28.
  • a protective grille 23 can be attached in a known manner to its edge of the outer diffuser 34 encompassing the outlet opening 37, for which purpose the outer diffuser 34 has screw-in domes 38 on its outside in the area of the outlet openings 37, into which fastening screws for the protective grille 23 can be screwed.
  • Fig. 7 and 8th It can be seen that according to the invention it is also possible to arrange an inner diffuser 42 within the outer diffuser 34, which extends from the inlet opening 36 to the outlet opening 37 of the outer diffuser 34 and has a closed peripheral wall, and which in the area of the inlet opening 36 with the retaining ring 13 is connectable.
  • an inner diffuser 42 within the outer diffuser 34, which extends from the inlet opening 36 to the outlet opening 37 of the outer diffuser 34 and has a closed peripheral wall, and which in the area of the inlet opening 36 with the retaining ring 13 is connectable.
  • this can be done on the WO2012 / 084725 A1 to which reference is made in full.
  • a cover 43 is used to fasten the inner diffuser 42, which is on the protective grille 23 on its side pointing in the outflow direction and is connected to the inner diffuser 42 in such a way that the protective grille 23 is enclosed between the end cover 43 and the inner diffuser 42.
  • the first cylinder section 9, starting from the inflow opening 4 has a front channel section 44, which has a larger inner diameter than a rear channel section 46, which is connected via an in particular inclined step and which is connected via a stop step 47 in the sense of a diameter reduction a channel section 48 running in the transition area between the cylinder section and the truncated cone section 11 merges.
  • the housing wall 2 according to the invention can be slipped onto a wall ring 49, specifically onto a nozzle-shaped extension 51 of the wall ring 49. In the illustrated embodiment according to Fig.
  • FIG. 2a it is a wall ring 49 with a so-called long version of the nozzle-shaped extension 51, which has an outer diameter such that it fits together with the rear channel section 46, so that between the housing wall 2 and the nozzle-shaped extension 51 in the area of the rear channel section 46 a non-positive, z. B. sliding seat connection results.
  • the stop step 47 serves as a depth stop.
  • Figure 2b an embodiment is shown, wherein a wall ring 49a with a nozzle-shaped extension 51a is designed as a short version, and has such an outer diameter that it interacts with the front channel section 44 and a sliding seat connection is provided here.
  • wall rings 49, 49a in the Figures 2a and 2b it is, for example, wall rings 49, 49a made of sheet steel.
  • a wall ring 49b can also be used in which its nozzle-shaped extension 51b has an outer diameter such that it protrudes with radial play within the flow channel 3 in relation to the cylindrical section 9.
  • a wall ring 49c is shown which is connected to the housing wall 2 in that its nozzle-shaped extension 51c in the area of the rear channel section 46 is connected via a screw connection 52. This is also a sheet steel version.
  • a wall ring 49d made as a plastic part with its nozzle-shaped extension 51d runs with radial play to the front channel section 44 and the rear channel section 46 and with its end area located inside the flow channel 3 on the channel section 48 in the transition area between the cylinder section 9 and the truncated cone section 11 rests.
  • This wall ring 49d made of plastic is connected to the housing wall 2 according to the invention via a screw connection via the sleeve-shaped extensions 26.
  • the housing according to the invention thus forms a universal module part that can be combined in many ways with customer-specific wall rings 49a, b, c, d and with an outer diffuser 34 and an inner diffuser 42 and with the protective grille 23.
  • the housing according to the invention including the struts 12 and the retaining ring 13 and the fastening means, forms a one-piece plastic part that can also be used without additional attachments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (11)

  1. Boîtier pour un ventilateur (1) ou aérateur, en particulier un ventilateur axial, comprenant une paroi du boîtier (2) annulaire qui renferme un conduit d'écoulement (3) avec un orifice d'admission (4) et un orifice d'échappement (6), le conduit d'écoulement (3) présentant une section circulaire sur un plan perpendiculaire à un axe longitudinal (X-X) médian, ainsi qu'un support de moteur (7) pour un moteur électrique (8) du ventilateur (1) à l'intérieur du conduit d'écoulement (3),
    le conduit d'écoulement (3) possédant une première section cylindrique (9) se raccordant à l'orifice d'admission (4) ainsi qu'une deuxième section conique (11) se raccordant à celle-ci avec sa petite surface conique, s'étendant vers l'orifice d'échappement (6), le support (7) se composant de plusieurs entretoises (12) fixées avec une extrémité sur la deuxième section conique (11), lesquelles vont d'une surface périphérique intérieure de la section conique (11) en direction de l'axe longitudinal (X-X) et présentent, sur leurs autres extrémités intérieures, des sections de support pour le moteur électrique (8), caractérisé en ce que des moyens de fixation (24, 26) de la paroi du boîtier (2) sont présents dans la zone de l'orifice d'admission (4) pour la liaison avec une pièce de raccordement, des moyens de fixation (28) sont présents dans la zone marginale de son orifice d'échappement (6) pour une grille de protection (23) et des moyens de fixation (29, 31) pour la fixation d'un diffuseur extérieur (34) sur la paroi du boîtier (2) sont présents dans la zone de l'orifice d'échappement (6).
  2. Boîtier conformément à la revendication n°1,
    caractérisé en ce que les entretoises (12) possèdent, en partant de la surface périphérique intérieure de la section conique (11), des sections d'entretoise (14) parallèles au plan d'ouverture de l'orifice d'échappement (6), auxquelles se raccordent des sections (16) coudées, en direction de la première section cylindrique (9) sous un angle pointu par rapport au plan d'ouverture, à l'extrémité libre desquelles les sections du support sont constituées, les sections du support étant regroupées en particulier en un anneau de retenue (13) fermé, dont le diamètre intérieur est adapté à un diamètre extérieur du moteur électrique (8).
  3. Boîtier conformément à la revendication n°2,
    caractérisé en ce que l'anneau de retenue (13) va de la première section cylindrique (9) vers la deuxième section conique (11) avec son plan d'ouverture perpendiculaire à l'axe longitudinal (X-X) dans la zone de transition.
  4. Boîtier conformément à l'une des revendications n°1 à n°3,
    caractérisé en ce que trois à huit entretoises (12) sont constituées à distances égales les unes par rapport aux autres conformément à la périphérie.
  5. Boîtier conformément à l'une des revendications n°1 à n°4,
    caractérisé en ce que la paroi du boîtier (2) est constituée, avec les entretoises (12) et l'anneau de retenue (13) ainsi que les différents moyens de fixation (24, 28, 29, 31), comme une pièce moulée en matière plastique en un bloc.
  6. Boîtier conformément à l'une des revendications n°1 à n°5,
    caractérisé en ce que la première section cylindrique (9) présente, en partant de l'orifice d'admission (4), une section de conduit (44) frontale qui présente un diamètre intérieur plus grand qu'une section de conduit (46) arrière se raccordant par un niveau, laquelle présente un niveau de butée (47) formé dans le sens d'une diminution du diamètre et passant dans une section de conduit (48) allant vers la section conique (11) dans la zone de transition de la section cylindrique (9).
  7. Boîtier conformément à l'une des revendications n°1 à n°6,
    caractérisé en ce qu'un diffuseur extérieur (34) peut être fixé au moyen d'une connexion enfichable sur la paroi du boîtier (2) dans la zone de l'orifice d'échappement (6).
  8. Boîtier conformément à l'une des revendications n°1 à n°7,
    caractérisé en ce que la grille de protection (23) peut être fixée avec la paroi du boîtier (2) annulaire dans la zone de l'orifice d'échappement (6) au moyen d'un raccord à vis.
  9. Boîtier conformément à l'une des revendications n°1 à n°8,
    caractérisé en ce qu'un anneau mural (49a, b, c, d) peut être fixé avec un prolongement (51 a, b, c, d) en forme de buse avec la paroi du boîtier (2) dans la zone de la section de conduit frontal (44) ou de la section de conduit (46) et/ou par un raccord à vis au moyen de prolongements (26) en forme de manchon sur la périphérie extérieure de la section cylindrique (29) dans la zone de l'orifice d'admission (4).
  10. Boîtier conformément à l'une des revendications n°1 à n°9,
    caractérisé en ce qu'un diffuseur intérieur (42) qui est fixé, à une extrémité, sur le support du moteur (7) et, à l'autre extrémité, sur une grille de protection (23) recouvrant le diffuseur extérieur (34) sur son orifice de sortie (37), est disposé à l'intérieur du diffuseur extérieur (34).
  11. Boîtier conformément à l'une des revendications précédentes, caractérisé en ce que la pièce de raccordement est un anneau mural (49a, b, c, d).
EP13753609.0A 2012-10-08 2013-08-21 Carter pour un ventilateur ou une soufflante Active EP2904274B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012109545.0A DE102012109545A1 (de) 2012-10-08 2012-10-08 "Gehäuse für einen Ventilator oder Lüfter"
PCT/EP2013/067396 WO2014056655A2 (fr) 2012-10-08 2013-08-21 Carter pour un ventilateur ou une soufflante

Publications (2)

Publication Number Publication Date
EP2904274A2 EP2904274A2 (fr) 2015-08-12
EP2904274B1 true EP2904274B1 (fr) 2020-10-07

Family

ID=49080855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13753609.0A Active EP2904274B1 (fr) 2012-10-08 2013-08-21 Carter pour un ventilateur ou une soufflante

Country Status (5)

Country Link
US (1) US20150252812A1 (fr)
EP (1) EP2904274B1 (fr)
CN (1) CN104755766A (fr)
DE (1) DE102012109545A1 (fr)
WO (1) WO2014056655A2 (fr)

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DE102018128824A1 (de) * 2018-11-16 2020-05-20 Ebm-Papst Mulfingen Gmbh & Co. Kg Diagonalventilator mit Gehäuse
DE102019101096A1 (de) * 2019-01-16 2020-07-16 Ebm-Papst Mulfingen Gmbh & Co. Kg Strömungsleitvorrichtung und Gebläseanordnung mit Strömungsleitvorrichtung
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DE102019220089A1 (de) * 2019-12-18 2021-02-04 W & S Management Gmbh & Co. Kg Düsenelement für einen Strahlventilator und Strahlventilator
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Also Published As

Publication number Publication date
EP2904274A2 (fr) 2015-08-12
WO2014056655A4 (fr) 2014-10-23
WO2014056655A3 (fr) 2014-09-12
WO2014056655A2 (fr) 2014-04-17
DE102012109545A1 (de) 2014-04-10
US20150252812A1 (en) 2015-09-10
CN104755766A (zh) 2015-07-01

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