EP2778432B1 - Agencement de ventilateur avec redresseur de courant - Google Patents

Agencement de ventilateur avec redresseur de courant Download PDF

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Publication number
EP2778432B1
EP2778432B1 EP13159536.5A EP13159536A EP2778432B1 EP 2778432 B1 EP2778432 B1 EP 2778432B1 EP 13159536 A EP13159536 A EP 13159536A EP 2778432 B1 EP2778432 B1 EP 2778432B1
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EP
European Patent Office
Prior art keywords
ventilation device
inlet opening
webs
flow inlet
web
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
EP13159536.5A
Other languages
German (de)
English (en)
Other versions
EP2778432A1 (fr
Inventor
Jens Müller
Michael Strehle
Oliver Haaf
Erhard Gruber
Christian Hammel
Katrin Bohl
Marc Schneider
Eric Reichert
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
Priority to ES13159536.5T priority Critical patent/ES2555292T3/es
Application filed by Ebm Papst Mulfingen GmbH and Co KG filed Critical Ebm Papst Mulfingen GmbH and Co KG
Priority to EP13159536.5A priority patent/EP2778432B1/fr
Priority to DK13159536.5T priority patent/DK2778432T3/en
Priority to PT131595365T priority patent/PT2778432E/pt
Priority to US14/163,590 priority patent/US9932990B2/en
Priority to CN201480012256.2A priority patent/CN105102825B/zh
Priority to KR1020157022824A priority patent/KR101808583B1/ko
Priority to PCT/EP2014/054597 priority patent/WO2014139959A1/fr
Publication of EP2778432A1 publication Critical patent/EP2778432A1/fr
Application granted granted Critical
Publication of EP2778432B1 publication Critical patent/EP2778432B1/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
    • 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
    • F04D29/663—Sound attenuation
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F24F2013/088—Air-flow straightener

Definitions

  • the present invention relates to a fan arrangement according to the preamble of claim 1.
  • a flow straightener is known.
  • arranged on a suction nozzle of a fan assembly star-shaped baffles, which are web-shaped, wherein the baffles are recognized in the outer curvature region of the suction nozzle and protrude against the flow direction umbrella-shaped from the suction nozzle as a whole.
  • the baffles do not extend to a middle star point, so that an inflow opening, which contains no baffles, is present.
  • the noise level in the low-frequency frequency range is not reduced enough, which affects in particular the blade turning tones.
  • a flow straightener for a fan known, this comprises a spanned in a plane perpendicular to the longitudinal axis extending grid consisting of a plurality of concentric radially spaced apart ring lands and eight circumferentially distributed axial webs, wherein the axial webs the ring lands with each other and with an inner, an assembly opening surrounding retaining ring and connect to an outer retaining ring.
  • a high pressure loss is present, which is reflected in an increase in the required power consumption.
  • the GB 2 088 953 A discloses a fan for providing a flow of air over a wide throw angle range, comprising an axial fan mounted in a housing, means for driving the axial fan and a freely rotatable air deflector located on the throw side of the fan in a front opening of the housing.
  • the air deflector is provided with rotating impellers for receiving swirling air from the fan and imparting rotational force in one direction to the air deflector, and brake pad wheels for receiving swirling air from the fan and imparting rotational force in the opposite direction to the air deflector. This will cause the fan to exhaust air provided a wide range, wherein the air deflector rotates in a direction of low rotation.
  • the fan further comprises a suction-side mounted on the housing touch screen with intersecting, extending in an XY plane radial and annular grid bars.
  • the invention is based on the object, both the turbulence in the inflow and thus the low-frequency noise, especially to reduce the turning tones and to minimize the pressure drop of the rectifier.
  • the web structure is formed by a lattice structure of intersecting lattice webs having a plurality of lattice openings enclosed by the lattice webs, wherein the lattice structure forms a lateral surface of a geometric body, and the web structure on the suction side before the flow inlet opening with a middle Longitudinal axis of the fan assembly is fixed, wherein the web structure surrounds the flow inlet opening such that the suction side is formed at an axial height in front of the flow inlet opening of the web structure, an inflow opening whose opening area is smaller than the opening area of the flow inlet opening, wherein the inflow opening in the grid structure centrally and centrally is formed to the longitudinal axis, and wherein the inflow opening is web-free and has an inner diameter.
  • the axial height is dimensioned such that: 0.05 ⁇ H / D lf ⁇ 0.5, where D lf is the outer diameter of the impeller of the fan assembly .
  • the geometric body has the shape of a truncated cone or of an n-side truncated pyramid, where n is an integer and greater than or equal to 3.
  • the frusto-conical body has a circular base and a circular end surface.
  • the grid openings may have a polygonal or an oval shape.
  • the lateral surface of the frusto-conical body viewed in longitudinal section along the longitudinal axis outwardly convex runs. However, it is also within the scope of the invention if this lateral surface has a concave profile.
  • the invention is based on the finding that the configuration of the grid structure according to the invention uniforms the inflow by reducing turbulence. Due to the walls formed by the grid webs speed fluctuations are hindered perpendicular to the main flow direction. About the distance of the walls to each other, this influence can be controlled, while at the same time it is important that the pressure loss caused by the web structure according to the invention is minimized. According to the invention, the inflow opening has no webs, as this pressure losses are prevented in this area.
  • a fan assembly 1 having an axial fan 2, which has a paddle wheel 3 and a centrally disposed hub 4, and at the periphery of the hub 4 fixed, radially to a central longitudinal axis XX extending blades 5.
  • the central longitudinal axis XX coincides with an axis of rotation of the hub 4, wherein the hub 4 is designed in particular as an external rotor rotor of an external electric rotor motor 6.
  • the impeller 3 is circumferentially enclosed by a preferably circular cylindrical housing ring 7, wherein the suction side of a flow inlet opening 10 of the housing ring 7, an annular suction nozzle 8 is provided, which may preferably be integrally formed with the housing ring 7.
  • a mounting plate 9 is arranged, which surrounds the flow inlet opening 10.
  • a flow rectifier 11 is attached, see also Fig. 2 to 4 ,
  • This flow rectifier 11 has a grid structure 12 of intersecting webs, in particular axial webs 14, extending in the direction of the longitudinal axis XX extend and in particular concentric to the longitudinal axis XX extending, annular peripheral webs 15, on.
  • This grid structure 12 has 15 grid openings 15a between the axial webs 14 and the peripheral webs.
  • the lattice structure 12 forms a geometric body, wherein in the illustrated embodiment, the geometric body has the shape of a truncated cone whose base surrounds the flow inlet opening 10 and its end surface opposite the base surface comprises or comprises an inflow opening 16. It is advantageous if the axial webs 14 with the peripheral webs 15 include an angle ⁇ of 90 ° ⁇ 10% deviation at their intersections.
  • the grid openings 15a are rectangular, in particular with curved peripheral sides, which are formed by the peripheral webs 15 in sections.
  • the grid openings 15a may also have a different polygonal shape or have an oval shape.
  • an inflow opening 16 is formed centrally and centrically to the longitudinal axis XX in the lattice structure 12.
  • This inflow opening 16 has no webs.
  • the lattice structure 12 with a circumferential annular edge web 16a in the mounted state on the mounting plate 9 on the entire surface, so that the edge web 16a is formed such that it is parallel to the mounting plate 9 in the assembled state, ie it is perpendicular to the longitudinal axis XX.
  • the axial webs 14 extend from the edge web 16a counter to the suction direction Y in the direction of the inflow opening 16.
  • the axial webs 14 advantageously have extensions 17, with which they embrace the flow inlet opening 10 in its edge region 18 in the assembled state, see Fig.
  • the middle, web-free inflow opening 16 has an inner diameter D i , wherein in particular D i ⁇ D lf x 0.55, wherein the diameter D lf is the maximum outer diameter of the impeller.
  • the webs, ie the axial webs 14 and the peripheral webs 15 of the lattice structure 12 preferably have a web height H f and a web thickness T f , where H f / T f > 5.
  • the grid openings 15a have an axial width L r and a circumferential grid width L u , where preferably 1 ⁇ 3 ⁇ L u / L r ⁇ 3.
  • the grid openings 15a have a diagonal opening width L d , which is dimensioned such that 0.01 ⁇ L d / D lf ⁇ 0.15, where D lr is the diameter of the impeller, ie the impeller 3.
  • the axial height H of the inflow opening 16 to the base surface of the lattice structure 12 or mounting plate 9 is calculated from 0.05 ⁇ H / D lf ⁇ 0.5.
  • the axial webs 14 always have the same circumferential distance to each other and the peripheral webs 15 suitably always have the same axial distance from each other. It is also within the scope of the invention if the grid width L u and / or the ratio L u / L r varies over the radius and / or over the circumference of the grid structure 12. Also, areas of the grid structure 12 may be open, so that there are no webs. Furthermore, it is within the scope of the invention if the distribution of the axial webs 14 and / or the circumferential webs 15 is not uniform but uneven within the lattice structure 12.
  • the inflow opening 16 of the flow rectifier 11 is expediently enclosed by a circumferential web 15, so that the axial webs 14 end at this peripheral web 15.
  • a fastening tabs 19 are advantageously integrally formed with through holes, wherein the flow straightener 11 is attached to the mounting plate 9 by means not shown fastening means and the fastening tabs 19.
  • a fan assembly 1 having a radial fan 20. This has a paddle wheel 21 with a centrally located hub 22. On the hub 22 blades 23 are attached. The axis of rotation of the hub 22 coincides with the central longitudinal axis XX of the fan assembly 1.
  • the drive is expediently an electric external rotor motor whose rotor simultaneously forms the hub 22.
  • the impeller 21 is inter alia of a cover plate 24.
  • an annular suction nozzle 8 is arranged at this suction side of the flow inlet opening 10, which is enclosed by the cover plate 24, at this suction side of the flow inlet opening 10, which is enclosed by the cover plate 24, an annular suction nozzle 8 is arranged.
  • This suction nozzle 8 is, as well as in Fig. 1 , from a cylindrical portion 8a, which adjoins the cover plate 24 in the example shown and may be connected to the mounting plate 9 with a section, and an arcuate flared nozzle portion 8b, which extends to the mounting plate 9, formed.
  • a flow rectifier 11 arranged, see also Fig. 6 , This consists of Axialstegen 14 and peripheral webs 15, including in full on the description of the Fig. 1 to 4 Reference is made, as well as in full extent to the design information with respect to the dimensioning of the webs, ie the axial webs 14 and the peripheral webs 15 and the dimensioning of the grid openings 15
  • the flow straightener 11 can be attached with its peripheral edge web 16a on the mounting plate 9 under surface contact, including provided in the edge web 16a through holes 19 for fastening means.
  • a further embodiment of a flow rectifier 11 is shown, in which the flow rectifier 11 is formed integrally with the suction nozzle 8.
  • the edge web 16 according to the Fig. 5 to 7 omitted, and the axial webs 14 are connected at their ends directly to the suction nozzle 8 in the region of its nozzle portion 8b.
  • the suction nozzle 8 has an annular flange section 8c on the section 8b, which can be fastened directly to the mounting plate 9.
  • the flow straightener 11 can be manufactured by injection molding, die casting from one or more parts. These individual parts can be riveted, glued or welded or screwed. Also, a snap connection would be possible within the scope of the invention. If it concerns metal parts in the flow rectifier 11, these can also be produced by punching. As in particular to the Fig. 8 to 10 is described, the flow straightener 11 may also be screwed, glued, riveted or connected by a clip connection with the suction nozzle section or an inlet ring of a housing of the fan assembly 1 according to the invention or with the wall ring. Also, a weld could be possible.
  • the grid structure 12 may be made of plastic, made of metal or composite materials. It may also be advantageous if the flow rectifier 11 is provided with a flame retardant coating. It is also possible to select the manufacturing material accordingly, so that the conditions of fire protection are met.
  • the lattice webs, in particular the axial webs 14 and peripheral webs 15, of the lattice structure 12 are designed and arranged such that the flow emerging from the flow rectifier 11 is free of twist or that no swirl is supplied by the lattice structure 12 to the flow. It is also within the scope of the invention if the inner diameter D i of the inlet opening 10 varies over the circumference of the opening. In order to achieve a contact protection, it may also be expedient if the inlet opening 10 is closed by a protective grid.
  • the flow rectifier 11 may also, if appropriate, be attached to the suction side, in particular for assembly reasons directly to a support or protective grid of a fan or fan assembly.
  • the inflow opening 16 can also accommodate further elements, provided that their entire flow area does not occupy greater than 15% of the area of the inflow opening 16. Thus, it is possible, for example, that a holder for mounting the fan is present within the inflow opening 16.
  • a significant noise advantage is achieved by the inventive use of a flow straightener.
  • the curve A shows a one-third band of the suction-side sound power of an axial fan at a flow rate of 14400m 3 / h and a pressure of 58 Pa.
  • the speed is 1020 1 / min with undisturbed flow under laboratory conditions.
  • Undisturbed inflow here means a flow having a spatially and temporally uniform velocity field which has a low degree of turbulence of less than 1%.
  • FIG. 12 A typical schematic installation situation of the same fan or fan 2 in a customer device, wherein the fan sucks air through a heat exchanger 26, and between the heat exchanger 26 and fan 2 is a free space 27 which is enclosed by a box 28 is in Fig. 12 shown.
  • the heat exchanger 26 has the dimensions: length 141 cm x height 153 cm x depth 17 cm, the pressure loss is 58Pa at 14400 m 3 / h.
  • the box 28 or clearance 27 has the same height and length at a depth of 38 cm.

Claims (25)

  1. Ensemble formant ventilateur (1), constitué d'une soufflerie axiale, radiale ou diagonale (2, 20) pourvue d'une roue à aubes (3, 21), qui est entourée par un boîtier, au niveau duquel sont disposés, côté aspiration, au niveau d'une ouverture d'entrée de courant (10), une buse d'aspiration (8), et, dans le sens d'aspiration (Y), avant l'ouverture d'entrée de courant (10), un redresseur de courant (11), et le redresseur de courant (11) comprenant une structure à traverses (12) composée de traverses de guidage d'air (14, 15), sachant que la structure à traverses (12) est formée par une structure en grille (12) composée de traverses de grille (14, 15) se croisant, laquelle structure en grille comporte une pluralité d'ouvertures de grille (15a) entourées par les traverses de grille (14, 15), sachant que la structure en grille (12) forme une surface enveloppante d'un corps géométrique et que la structure à traverses (12) est fixée, côté aspiration, avant l'ouverture d'entrée de courant (10), par un axe longitudinal (X-X) central de l'ensemble formant ventilateur (1), caractérisé en ce que la structure à traverses (12) entoure l'ouverture d'entrée de courant (10) de telle manière qu'une ouverture de flux entrant (16) est réalisée, côté aspiration, à une hauteur axiale (H) avant l'ouverture d'entrée de courant (10), par la structure à traverses (12), dont la surface d'ouverture est plus petite que la surface d'ouverture de l'ouverture d'entrée de courant (10), sachant que l'ouverture de flux entrant (16) est réalisée dans la structure en grille (12) au centre et de manière centrée par rapport à l'axe longitudinal (X-X), et sachant que l'ouverture de flux entrant (16) est sans traverse et présente un diamètre intérieur (Di).
  2. Ensemble formant ventilateur (1) selon la revendication 1,
    caractérisé en ce que la hauteur axiale (H) est calculée à partir du rapport 0,05 ≤ H/Dlf ≤ 0,5, sachant que Dlf est le diamètre extérieur d'une roue mobile (3) de l'ensemble formant ventilateur (1).
  3. Ensemble formant ventilateur (1) selon la revendication 1 ou 2,
    caractérisé en ce que le corps géométrique comporte la forme d'un cône tronqué, dont la surface de base présente l'ouverture d'entrée de courant (10) et dont la surface d'extrémité faisant face à la surface de base présente l'ouverture de flux entrant (16).
  4. Ensemble formant ventilateur (1) selon la revendication 1 ou 2,
    caractérisé en ce que le corps géométrique comporte la forme d'un tronc de pyramide à n côtés, dont la surface de base présente l'ouverture d'entrée de courant (10) et dont la surface d'extrémité faisant face à la surface de base présente l'ouverture de flux entrant (16), sachant que n est plus grand ou égal à 3 et est un nombre entier.
  5. Ensemble formant ventilateur (1) selon la revendication 3,
    caractérisé en ce que le corps présentant une forme de cône tronqué comporte une surface d'extrémité et une surface de base de forme circulaire.
  6. Ensemble formant ventilateur (1) selon la revendication 4,
    caractérisé en ce que n = 4, et en ce que la surface de base et la surface d'extrémité comportent la forme d'un carré.
  7. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que les ouvertures de grille (15a) comportent une forme polygonale ou une forme ovale.
  8. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 3 à 7,
    caractérisé en ce que la surface enveloppante du corps présentant une forme de cône tronqué ou la surface latérale du corps présentant une forme de tronc de pyramide, à n côtés est réalisée, vue selon la coupe longitudinale en passant par son axe longitudinal (X-X), avec une courbure convexe vers l'extérieur et avec une courbure concave vers l'intérieur.
  9. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que la structure en grille (12) est formée à partir de traverses axiales (14) s'étendant dans la direction allant de l'ouverture d'entrée de courant (10) vers l'ouverture de flux entrant (16) et à partir de traverses périphériques (15) croisant ces dernières de préférence selon un angle (α) de 90° avec ± 10 % d'écart.
  10. Ensemble formant ventilateur (1) selon la revendication 9,
    caractérisé en ce que les traverses axiales (14) sont reliées, par leurs extrémités dirigées dans le sens inverse au sens d'aspiration (Y), à une traverse périphérique (15), qui entoure l'ouverture de flux entrant (16), et en ce qu'elles sont reliées, par leur autre extrémité, à une traverse de bordure (16a) présentant une forme circulaire.
  11. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que s'applique pour le diamètre intérieur (Di) de l'ouverture de flux entrant (16) Di ≥ Dlf x 0,55, sachant que Dlf est le diamètre de la roue mobile.
  12. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 9 à 11,
    caractérisé en ce que l'espacement entre les traverses axiales (14) est le même.
  13. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 9 à 12,
    caractérisé en ce que l'espacement entre les traverses périphériques (15) est le même.
  14. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 13,
    caractérisé en ce que les traverses de grille (14, 15) de la structure en grille (12) comportent une hauteur de traverse (Hf) et comporte une épaisseur de traverse (Tf), sachant que s'applique Hf/Tf > 5.
  15. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 9 à 14,
    caractérisé en ce que les ouvertures de grille (15a) comportent une largeur radiale (Lr) et une largeur de grille périphérique (Lu), sachant que s'applique 1/3 < Lu/Lr < 3.
  16. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 9 à 15,
    caractérisé en ce que les ouvertures de grille (15a) comportent une largeur d'ouverture diagonale (Ld), et en ce que l'ensemble formant ventilateur (1) comporte une roue mobile (5) présentant un diamètre de roue mobile (Dlf), sachant que s'applique 0,01 < Ld/Dlf < 0,15.
  17. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 16,
    caractérisé en ce que la structure en grille (12) présente une traverse de bordure (16a) périphérique de forme annulaire, par laquelle la structure en grille repose à l'état monté sur toute sa surface au niveau d'une plaque de montage (9) d'un ensemble formant ventilateur (1) de sorte que la traverse de bordure (16a) est orientée de manière perpendiculaire par rapport à l'axe longitudinal (X-X).
  18. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 15 à 17,
    caractérisé en ce que la largeur d'ouverture diagonale (Ld) et/ou le rapport Lu/Lr varie sur le rayon et/ou sur la périphérie de la structure en grille (12).
  19. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 18,
    caractérisé en ce que des zones de la structure en grille (12) sont réalisées de manière ouverte.
  20. Ensemble formant ventilateur (1) selon la revendication 9,
    caractérisé en ce que la répartition des traverses axiales (14) et/ou des traverses périphériques (15) n'est pas homogène dans la zone de la structure en grille (12).
  21. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 9 à 20,
    caractérisé en ce que l'ouverture de flux entrant (16) du redresseur de courant (11) est entourée par une traverse périphérique (15) de sorte que les traverses axiales (14) se finissent au niveau de ladite traverse périphérique (15).
  22. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 21,
    caractérisé en ce que le redresseur de courant (11) est réalisé d'un seul tenant avec la buse d'aspiration (8) de sorte que la structure en grille (12), en particulier les traverses axiales (14), est/sont reliée(s) à la buse d'aspiration (8) dans la zone de sa section de buse (8b), et en ce que la buse d'aspiration (8) est réalisée de manière à pouvoir être reliée à l'ensemble formant ventilateur (1).
  23. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 22,
    caractérisé en ce que la structure en grille (12) est fabriquée sous la forme d'une pièce moulée par injection.
  24. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 23,
    caractérisé en ce que la structure en grille (12) se compose d'une unique partie ou de plusieurs parties, sachant que les parties individuelles peuvent être rivetées, collées, soudées, vissées ou enclenchées les unes aux autres.
  25. Ensemble formant ventilateur (1) selon l'une quelconque des revendications 1 à 24,
    caractérisé en ce que d'autres composants sont contenus dans l'ouverture de flux entrant (16), dont la surface de courant totale active représente ≤ 15 % de la surface de courant de l'ouverture de flux entrant (16).
EP13159536.5A 2013-01-28 2013-03-15 Agencement de ventilateur avec redresseur de courant Active EP2778432B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP13159536.5A EP2778432B1 (fr) 2013-03-15 2013-03-15 Agencement de ventilateur avec redresseur de courant
DK13159536.5T DK2778432T3 (en) 2013-03-15 2013-03-15 Fan device with flow rectifier
PT131595365T PT2778432E (pt) 2013-03-15 2013-03-15 Dispositivo de ventilação com retificador de fluxo
ES13159536.5T ES2555292T3 (es) 2013-03-15 2013-03-15 Disposición de ventilador con rectificador de corriente
US14/163,590 US9932990B2 (en) 2013-01-28 2014-01-24 Ventilation device, in particular for heating, cooling, and/or humidifying air in residential buildings
CN201480012256.2A CN105102825B (zh) 2013-03-15 2014-03-10 具有流量矫直器的风扇布置
KR1020157022824A KR101808583B1 (ko) 2013-03-15 2014-03-10 유동 교정기를 가진 팬 장치
PCT/EP2014/054597 WO2014139959A1 (fr) 2013-03-15 2014-03-10 Ensemble ventilateur doté d'un régulateur de débit d'air

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EP13159536.5A EP2778432B1 (fr) 2013-03-15 2013-03-15 Agencement de ventilateur avec redresseur de courant

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EP2778432B1 true EP2778432B1 (fr) 2015-10-14

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EP (1) EP2778432B1 (fr)
KR (1) KR101808583B1 (fr)
CN (1) CN105102825B (fr)
DK (1) DK2778432T3 (fr)
ES (1) ES2555292T3 (fr)
PT (1) PT2778432E (fr)
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Also Published As

Publication number Publication date
DK2778432T3 (en) 2016-01-25
ES2555292T3 (es) 2015-12-30
KR20150128675A (ko) 2015-11-18
US9932990B2 (en) 2018-04-03
KR101808583B1 (ko) 2017-12-13
WO2014139959A1 (fr) 2014-09-18
CN105102825A (zh) 2015-11-25
PT2778432E (pt) 2016-01-29
CN105102825B (zh) 2018-07-10
US20140209275A1 (en) 2014-07-31
EP2778432A1 (fr) 2014-09-17

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