EP2904270B1 - Housing for an axial ventilator - Google Patents
Housing for an axial ventilator Download PDFInfo
- Publication number
- EP2904270B1 EP2904270B1 EP13717754.9A EP13717754A EP2904270B1 EP 2904270 B1 EP2904270 B1 EP 2904270B1 EP 13717754 A EP13717754 A EP 13717754A EP 2904270 B1 EP2904270 B1 EP 2904270B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diffusor
- housing
- outside
- section
- preferentially
- 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.)
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- 230000001681 protective effect Effects 0.000 claims description 21
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 10
- 239000002184 metal Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
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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
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
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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
- F04D29/66—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
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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
- 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
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
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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
- F04D29/40—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
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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
- F04D29/60—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
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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
- F04D29/70—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
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- 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
- F24F13/20—Casings or covers
-
- 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
- F24F7/007—Ventilation with forced flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/20—Three-dimensional
- F05D2250/29—Three-dimensional machined; miscellaneous
- F05D2250/294—Three-dimensional machined; miscellaneous grooved
Definitions
- the present invention relates to a housing for an axial fan, comprising a wall ring with an inlet nozzle portion and an outflow-connected annular diffuser with an inflow opening and an outflow opening and a holder for an electric motor of the fan, which is arranged in an interior of the housing.
- the diffuser is produced as a sheet metal part, resulting in relatively high production costs, however, and also has the known solution, especially in the middle and lower pressure range relatively poor efficiencies and a high noise level.
- the US 5,567,200 discloses an axial fan having a fan wheel, a motor, a housing for the fan wheel, and attachment means for securing the motor to the housing.
- the housing has an annular wall which is arranged at a certain distance from end regions of the blades of the fan wheel.
- the housing has an opening through which the housing can be flowed through with air.
- the attachment means extend substantially between the annular wall and the fan and are formed so as to support the annular wall on all sides to maintain the distance between the wall and fan.
- a diffuser for a fan comprising an inlet opening and an outlet opening for a gaseous medium, which flows from the inlet opening in an axial main flow direction enclosed by an outer housing diffuser interior to the outlet opening.
- the cross section of the outlet opening is larger than the cross section of the inlet opening and the cross section of the diffuser interior is enlarged, starting from the cross section of the inlet opening to the cross section of the outlet opening, wherein the outer housing forms a diffuser interior on the outside bounding outer diffuser.
- the cross section of the outer diffuser transitions along the main flow direction from a circular cross section at the inlet opening to a non-circular cross section at the outlet opening.
- an inner diffuser which limits the interior of the diffuser with an inner housing.
- US 2012/039731 A1 discloses an axial fan according to the preamble of claim 1.
- the present invention is based on the object, on the one hand to achieve a cost reduction and on the other hand to improve the efficiency and noise in the middle and lower pressure range. In addition, the installation should be simplified.
- the invention consists of a housing according to claim 1.
- the outer diffuser is formed from at least two partial annular sections, which are connected by means of mechanical connection means on its outer peripheral surface, and the holder of a plurality on one inner peripheral surface of the diffuser with one end attachable, circumferentially spaced, fastened in the edge region of its inflow opening Struts which are mounted with their other end to a motor flange of a motor housing of the electric motor.
- the outer diffuser is formed from four partial ring sections and four equidistant struts are provided, which are formed in particular from two parallel spokes.
- the outer diffuser according to the invention consists of plastic, and the mechanical connection of the individual partial ring sections takes place by means of screws or rivets or by plug connections.
- the outer diffuser expands from its inflow opening to its outflow opening conically with a cone angle ⁇ relative to its center axis XX, preferably from 10 ° to 18 °, in particular 12 ° to 15 °.
- the course of the peripheral wall of the diffuser can be made both straight and curved from the inflow opening to the outflow opening.
- the diffuser has a height measured in the direction of the longitudinal axis XX above arranged in the wall ring blades of the axial fan which is greater than / equal to 200 mm to 800 mm, with a ratio of L: D1 of 0.25 to 1.0, preferably 0.25 to 0.8, where L is the height of the outer diffuser measured in the direction of the longitudinal axis XX above the blades arranged in the wall ring and D1 is the diameter of the inflow opening.
- an inner diffuser which extends from the inflow opening to the outflow opening and has a closed circumferential wall, is arranged within the outer diffuser, preferably centric to its center axis, and which can be connected to the motor flange of the motor housing of the electric motor in the region of the inflow opening , wherein in the interior of the inner diffuser, the motor housing of the electric motor is accommodated.
- the inner diffuser here has in the connection region for the motor flange a peripheral wall with a circular flow cross-section and forms an annular section which merges into an air duct section having a polygonal, in particular quadrangular, cross section, in particular with rounded corners.
- This air guiding section has, in particular starting from the annular section, an end facing towards the opposite end, i. H. to the outflow opening, expanding interior space.
- a protective grid in particular circular, is arranged, which is connected with its outer peripheral edge to the outer diffuser.
- the inner diffuser is also connected to the protective grid, by resting on the protective grid on its side facing in the discharge direction end cover, which is so releasably connected to the Beerleitabites of the inner diffuser fastening means that the protective grid between the end cover and the air guide is included.
- the protective grid preferably has square meshes.
- This inlet nozzle section 3 encloses a suction channel 4, which is circular in cross-section.
- An annular outer diffuser 6 is connected to the wall ring 2 at the free end of the inlet nozzle section 3 and has an in particular circular inflow opening 7 and an in particular circular outflow opening 8.
- the flow direction of a medium to be transported through the housing by means of the axial fan 1 is indicated by Z.
- the axial fan 1 consists of an electric motor 9 with which a paddle wheel 11 is drivingly connected.
- the outer diffuser 6 consists of at least two partial ring sections 12, wherein in the illustrated embodiment, four partial annular sections 12 are shown, which are connected to each other by means of mechanical connection means 13 on an outer peripheral surface of the outer diffuser 6.
- Each partial ring section 12 extends over a specific peripheral region, so that in the fully assembled state the partial annular sections 12 are connected to form a circumferentially closed annular section.
- the outer diffuser 6 is advantageously made of plastic and the connecting means 13 may be, for example, screws, rivets or a latching connection.
- the housing according to the invention has a holder of at least three struts 14, which circumferentially have mutually equal distances.
- struts 14 are fastened in the edge region of the inflow opening 7 on the inner peripheral surface of the outer diffuser 6.
- the struts 14 can be fastened to a motor flange 16 of the electric motor 9 or a housing 17 of the electric motor 9.
- the struts 14 are suitably connected to each other at the end via an annular flange 14a, wherein the annular flange 14a by means of connecting means, for. B. screws is attached to the motor flange 16.
- the struts 14 form a supporting star with the annular flange 14a.
- the outer diffuser 6 has a height L measured in the direction of the longitudinal axis XX above arranged in the wall ring 2 and the inlet nozzle section 3 blades of the blade wheel 11, which is in particular greater than / equal to 200 mm to 800 mm inclusive.
- L / D1 preferably 0.25 to 1.0, in particular 0.25 to 0.8, wherein D1 is the diameter of the inflow opening 7 of the outer diffuser 6.
- the outer diffuser 6 expands from its inflow opening 7 to its outflow opening 8 conically with a relative to its central axis XX cone angle ⁇ of in particular 10 ° to 18 °, preferably 12 ° to 15 °.
- the outer diffuser 6 has on its outer side in the region of the inflow opening 7 corresponding to the number of struts 14, ie in the present embodiment, four mounting portions 18.
- These attachment regions 18 are in particular outwardly flared at an angle ⁇ between 90 ° and 90 ° + ⁇ and preferably have an angled portion 19 at their free end.
- This angled portion 19 extends at an angle ⁇ to the longitudinal axis XX.
- This bend 19 abuts against a tab 21, which is formed on the ends of the struts 14 and is also arranged at the angle ⁇ to the longitudinal axis XX.
- the bend 19 is bolted to the respective associated tab 21, for example by means of a screw 22.
- the wall ring 2 is screwed with a radially projecting annular collar 23 via a screw to the tab 21.
- an inner diffuser 26 is arranged inside the outer diffuser 6, so to continue the Fig. 1 to 3 and 5 can be seen, according to the invention inside the outer diffuser 6, an inner diffuser 26 is arranged.
- the arrangement of the inner diffuser 26 is preferably centric to the longitudinal axis XX.
- the inner diffuser 26 extends from the inflow opening 7 to the outflow opening 8 and has a closed circumferential wall 27.
- the inner diffuser 26 can be connected to the motor flange 16 of the motor housing 17.
- the inner diffuser 26 in the connection region with the motor flange 16 has a circular cross-section, annular portion 28 with the inner diameter d 1 , in an air duct 29 with a particular square, in particular square cross section with preferably rounded corners passes.
- a 1i is the opening area of the inner diffuser 26 at the beginning of its annular portion 28, and A 2i is the opening area of the inner diffuser at its end adjacent to the protective grille 36.
- the Heilleitabites 29 has rounded corners 32. In these corners 32 Anschlußdome 33 are provided with screw holes. How out Fig. 2 it can be seen, the inner diffuser 26 is dimensioned such that in its interior, the motor housing 17 of the electric motor 9 can be accommodated.
- the inner diffuser 26 has attachment tabs 34, preferably pointing radially inward, at the end of the annular section 28 facing the motor flange 16.
- the inner diffuser 26 can be attached to the motor flange 16 by means of fastening means.
- fastening means For this purpose, holes 60 are provided in the mounting flange, through which the fastening means extend. On both sides of the holes 60 stiffening portions 35 are formed in the angular range between the mounting tabs 34 and the inner diffuser 26.
- a in a plane perpendicular to the longitudinal axis XX opening plane of the discharge opening 8 a, preferably circular, protective grid 36 is arranged, which is connected with its outer peripheral edge 37 with the outer diffuser 6 in the edge region of its discharge opening 8.
- the protective grid 36 is formed from individual grid wires 38 which are arranged in a crosswise manner so as to form quadrangular, preferably square meshes 39.
- the mesh size, ie the distance between the parallel running grid wires 38 is 30 mm to a maximum of 40 mm.
- the outer diffuser 6 has, in its peripheral region encompassing the discharge opening 8, recesses 41 which are adapted to the contour of the grid wires 38, so that the grid wires 38 are received in these recesses 41.
- the protective grid 36 has radially inwardly projecting fastening tabs which cooperate with fastening projections 42 formed on the inside of the outer diffuser 6 and are connected to the outer diffuser 6 by means of screws which are screwed into the fastening projections 42.
- the inner diffuser 26 has a cover cover 43 which rests on the protective grid 36 on its outflow-facing side and with the air duct 29 via fasteners, such as screws, so releasably connected, that the protective grid 36 between the end cap 43 and the air guide 29 is included.
- the connection domes 33 serve in the corners 32 of the inner diffuser 26, in which the screws are screwed through the end cover 43 into the connection domes 33.
- this invention also has recesses 44 which are adapted to the shape and size of the grid wires 38.
- the inner diffuser 26 in the region of its annular portion 28, in particular in the diffuser interior protruding bulges 46 has.
- the channels formed by the bulges 46 extend the spokes of the struts 14 in the assembled state, so that the outer wall portion of the mecanicendiffusors 26 is not interrupted by the struts 14, but also forms a closed wall surface in this area.
- a diffuser unit according to the invention consisting of the outer diffuser 6 and the inner diffuser 26 including the protective grid 36 and the end cover 13 may expediently in its preassembled state with the fan unit consisting of fan 1, the wall ring 2 and the supporting star formed from the struts 14 and the annular flange 14a be connected by plugging and screwing.
- the screwing is done appropriately as to Fig. 4 described, wherein the outer diffuser 6 z. B. is screwed with eight screws 22.
- the plug connection takes place between the inner diffuser 26 and the supporting star in the region of the annular flange 14a. For this it is advantageous, see Fig.
- latching connectors 50 which are fastened to the annular flange 14a, with which in particular a non-positive or kraftformschlüssige connection between the annular flange 14a and the inner diffuser 26 is made.
- These latching connectors 50 are preferably formed as snap hooks, see Fig. 9 ,
- These snap hooks comprise a cylindrical attachment portion 51, which preferably has an external thread 52, with which it is screwed into a threaded bore in the annular flange 14a.
- the attachment portion 51 has a central longitudinal axis XX. In the axial direction of the longitudinal axis XX, a latching section 53 adjoins the attachment section 51.
- a plate-shaped stopper portion 54 is provided in particular, which delimits the screw-in path of the fastening portion 51.
- the latching portion 53 comprises a central shaft 55 which terminates in particular in a frusto-conical tip 56, wherein the tip 56 forms the smaller frusto-conical surface with its end face. In the transition region between the tip 56 and the shaft 55 z. B. two opposing spring-elastic locking arms 57 formed.
- latching arms 57 extend in the axial direction of the longitudinal axis XX on the attachment portion 51 and extend obliquely to the longitudinal axis XX that they form an angle ⁇ of 36 ° ⁇ 3 ° together in a plane passing through the longitudinal axis XX, vertical plane.
- the latching arms 57 each have an angle section 58 on the end, which is angled relative to the latching arms 57 in such a way that it towards the longitudinal axis XX extends.
- a radial distance A between the ends of the latching arms 57 is greater than a radial distance B between the ends of the angle sections 58.
- the latching connector 50 is preferably made as a plastic molding.
- the abutment portion 54 has circumferentially advantageously two opposing flats 59, which can serve as a key surfaces for a wrench.
- four latching connectors 50 are respectively screwed offset at 90 ° to each other on the annular flange 14a.
- Fig. 8 is the screwed state of a latch connector 50 to recognize.
- Fig. 10 the mounting position of an inner diffuser 26 of the diffuser unit is shown in detail, wherein in particular the locking connection between the inner diffuser 26 and the latch connector 50 can be seen.
- the inner diffuser 26 has for this purpose in its fastening tabs 34, the holes 60, the diameter of which is matched with the radial distances A and B of the resilient latching arms 57 that the latching arms 50 are pressed radially through the respective hole 60 when pushing through the latching connector 50 and spring back after completion of the insertion and engage behind in this position, the edge region of the holes 60.
- angle portions 58 With the existing at their ends angle portions 58 they lie with their outer surfaces on the inner edge of the holes 60 under pretension.
- the angle sections 58 have here such an inclination to the longitudinal axis XX that self-locking is given, so that the locking arms 57 can not be moved due to occurring force in the case of operation from the mounting detent position.
- a release is possible only by a manual compression of the latching arms 57. Tolerance deviations between the components can be compensated for by means of the angular sections 58, which bear against the inner edge of the respective hole 60 with prestress in the assembly position.
- the axial height of the plate-shaped stop portion 54 is less than the depth of the respective hole 60 in the mounting tabs 34 of the inner diffuser 26th
- a further embodiment of a housing according to the invention is shown in partial view.
- the wall ring 2 protrudes with its inlet nozzle section 3 into the outer diffuser 6 through its inflow opening 7, so that an overlapping area is present between the inlet nozzle section 3 and the outer diffuser 6 in the region of its adjacent to the inflow opening 7 section.
- an axial gap 47 is formed between these two parts, can enter through the air from the outside into the interior of the outer diffuser 6.
- the air entering through the axial gap 47 flows parallel to the air conveyed in the diffuser interior, so that there is no flow running transversely to the conveyed air, which could result in disturbing turbulences.
- the inventive design of the housing allows that the outer diffuser 6, the inner diffuser 26, the protective grid 36 and the struts 14 can be prefabricated with the consisting of electric motor 9 and paddle wheel 11 axial fan 1 as a unit. This unit can then be fixed on site with an already preassembled wall ring 2.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Description
Die vorliegende Erfindung betrifft ein Gehäuse für einen Axialventilator, umfassend einen Wandring mit einem Einlassdüsenabschnitt und einem mit diesem ausströmseitig verbundenen ringförmigem Diffusor mit einer Einströmöffnung und einer Ausströmöffnung sowie einer Halterung für einen Elektromotor des Ventilators, die in einem Innenraum des Gehäuses angeordnet ist.The present invention relates to a housing for an axial fan, comprising a wall ring with an inlet nozzle portion and an outflow-connected annular diffuser with an inflow opening and an outflow opening and a holder for an electric motor of the fan, which is arranged in an interior of the housing.
Bei derartig bekannten Gehäusen, siehe
Die
Aus der
Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, einerseits eine Kostenreduktion zu erzielen und andererseits den Wirkungsgrad und die Geräuschentwicklung im mittleren und unteren Druckbereich zu verbessern. Zudem soll die Montage vereinfacht werden.The present invention is based on the object, on the one hand to achieve a cost reduction and on the other hand to improve the efficiency and noise in the middle and lower pressure range. In addition, the installation should be simplified.
Die Erfindung besteht aus einem Gehäuse nach Anspruch 1.The invention consists of a housing according to
Dies wird dadurch erreicht, dass der Außendiffusor aus mindestens zwei Teilringabschnitten gebildet ist, die mittels mechanischer Verbindungsmittel an seiner äußeren Umfangsfläche verbunden sind, und die Halterung aus mehreren an einer inneren Umfangsfläche des Diffusors mit einem Ende befestigbaren, umfangsgemäß beabstandeten, im Randbereich seiner Einströmöffnung befestigbaren Streben besteht, die mit ihrem anderen Ende an einem Motorflansch eines Motorgehäuses des Elektromotors montierbar sind. Vorteilhafterweise wird der Außendiffusor aus vier Teilringabschnitten gebildet und es werden vier gleich beabstandete Streben vorgesehen, die insbesondere aus zwei parallelen Speichen gebildet sind. Insbesondere besteht der erfindungsgemäße Außendiffusor aus Kunststoff, und die mechanische Verbindung der einzelnen Teilringabschnitte erfolgt mit Hilfe von Schrauben oder Nieten oder durch Steckverbindungen. Durch die Mehrteiligkeit des Außendiffusors reduzieren sich die Werkzeugkosten. Weiterhin erweitert sich der Außendiffusor von seiner Einströmöffnung zu seiner Ausströmöffnung konisch mit einem zu seiner Mittelachse X-X bezogenen Konuswinkel α, vorzugsweise von 10 ° bis 18 °, insbesondere 12 ° bis 15 °. Der Verlauf der Umfangswandung des Diffusors kann dabei von der Einströmöffnung bis zur Ausströmöffnung sowohl geradlinig als auch gekrümmt ausgeführt sein. Hierbei ist es von Vorteil, wenn der Diffusor eine Höhe gemessen in Richtung der Längsachse X-X oberhalb von im Wandring angeordneten Schaufeln des Axialventilators besitzt, die größer/gleich 200 mm bis 800 mm beträgt, bei einem Verhältnis von L:D1 von 0,25 bis 1,0, vorzugsweise 0,25 bis 0,8, wobei L die Höhe des Außendiffusors gemessen in Richtung der Längsachse X-X oberhalb der im Wandring angeordneten Schaufeln ist und D1 der Durchmesser der Einströmöffnung. Durch diese vorteilhafte Bemessung wird der Wirkungsgrad des erfindungsgemäßen Gehäuses und die Geräuschentwicklung insbesondere im mittleren und unteren Druckbereich erreicht.This is achieved in that the outer diffuser is formed from at least two partial annular sections, which are connected by means of mechanical connection means on its outer peripheral surface, and the holder of a plurality on one inner peripheral surface of the diffuser with one end attachable, circumferentially spaced, fastened in the edge region of its inflow opening Struts which are mounted with their other end to a motor flange of a motor housing of the electric motor. Advantageously, the outer diffuser is formed from four partial ring sections and four equidistant struts are provided, which are formed in particular from two parallel spokes. In particular, the outer diffuser according to the invention consists of plastic, and the mechanical connection of the individual partial ring sections takes place by means of screws or rivets or by plug connections. Due to the multi-part nature of the outer diffuser, the tool costs are reduced. Furthermore, the outer diffuser expands from its inflow opening to its outflow opening conically with a cone angle α relative to its center axis XX, preferably from 10 ° to 18 °, in particular 12 ° to 15 °. The course of the peripheral wall of the diffuser can be made both straight and curved from the inflow opening to the outflow opening. It is advantageous if the diffuser has a height measured in the direction of the longitudinal axis XX above arranged in the wall ring blades of the axial fan which is greater than / equal to 200 mm to 800 mm, with a ratio of L: D1 of 0.25 to 1.0, preferably 0.25 to 0.8, where L is the height of the outer diffuser measured in the direction of the longitudinal axis XX above the blades arranged in the wall ring and D1 is the diameter of the inflow opening. This advantageous design of the efficiency of the housing according to the invention and the noise is achieved especially in the middle and lower pressure range.
Erfindungsgemäß ist vorgesehen, dass innerhalb des Außendiffusors, vorzugsweise zentrisch zu seiner Mittelachse, ein Innendiffusor angeordnet ist, der sich von der Einströmöffnung bis zur Ausströmöffnung erstreckt und eine geschlossene Umfangswandung aufweist, und der im Bereich der Einströmöffnung mit dem Motorflansch des Motorgehäuses des Elektromotors verbindbar ist, wobei im Innenraum des Innendiffusors das Motorgehäuse des Elektromotors aufgenommen ist. Vorteilhafterweise besitzt der Innendiffusor hierbei im Verbindungsbereich für den Motorflansch eine Umfangswandung mit einem kreisförmigen Strömungsquerschnitt und bildet einen ringförmigen Abschnitt aus, der in einen Luftleitabschnitt mit einem polygonalen, insbesondere viereckigen Querschnitt, insbesondere mit abgerundeten Ecken, übergeht. Dieser Luftleitabschnitt weist insbesondere ausgehend von dem ringförmigen Abschnitt einen sich zum gegenüberliegenden Ende, d. h. zur Ausströmöffnung, erweiternden Innenraum auf.According to the invention, an inner diffuser, which extends from the inflow opening to the outflow opening and has a closed circumferential wall, is arranged within the outer diffuser, preferably centric to its center axis, and which can be connected to the motor flange of the motor housing of the electric motor in the region of the inflow opening , wherein in the interior of the inner diffuser, the motor housing of the electric motor is accommodated. Advantageously, the inner diffuser here has in the connection region for the motor flange a peripheral wall with a circular flow cross-section and forms an annular section which merges into an air duct section having a polygonal, in particular quadrangular, cross section, in particular with rounded corners. This air guiding section has, in particular starting from the annular section, an end facing towards the opposite end, i. H. to the outflow opening, expanding interior space.
Durch die erfindungsgemäße Anordnung und Ausbildung des Innendiffusors wird eine Nabenrückströmung verhindert und der Wirkungsgrad optimiert. Erfindungsgemäß ist weiterhin in einer senkrecht zur Längsachse X-X verlaufenden Öffnungsebene des Außendiffusors im Bereich der Ausströmöffnung ein, insbesondere kreisförmiges, Schutzgitter angeordnet, das mit seinem äußeren Umfangsrand mit dem Außendiffusor verbunden ist. Hierbei ist erfindungsgemäß der Innendiffusor ebenfalls mit dem Schutzgitter verbunden, indem auf dem Schutzgitter auf seiner in Ausströmrichtung weisenden Seite ein Abschlussdeckel aufliegt, der mit dem Luftleitabschnitt des Innendiffusors über Befestigungsmittel derart lösbar verbunden ist, dass das Schutzgitter zwischen dem Abschlussdeckel und dem Luftleitabschnitt eingeschlossen ist. Das Schutzgitter weist vorzugsweise quadratische Maschen auf. Hierbei ist eine große Maschenweite, beispielsweise von 30 mm bis maximal 40 mm, bei quadratischen Maschen von Vorteil. Durch die Abstützung des Schutzgitters auf dem Innendiffusor wird eine "Begehbarkeit" des erfindungsgemäßen Gehäuses gewährleistet. Weiterhin kann eine Steckverbindung zwischen dem Innendiffusor und dem Motorflansch vorgesehen sein, wodurch die Montage wesentlich vereinfacht wird.The inventive arrangement and design of the inner diffuser prevents a hub backflow and optimizes the efficiency. According to the invention, in an opening plane of the outer diffuser running perpendicular to the longitudinal axis X-X in the region of the outflow opening, a protective grid, in particular circular, is arranged, which is connected with its outer peripheral edge to the outer diffuser. Here, according to the invention, the inner diffuser is also connected to the protective grid, by resting on the protective grid on its side facing in the discharge direction end cover, which is so releasably connected to the Luftleitabschnitt of the inner diffuser fastening means that the protective grid between the end cover and the air guide is included. The protective grid preferably has square meshes. Here is a large mesh size, for example, from 30 mm to a maximum of 40 mm, in square mesh advantage. By supporting the protective grille on the inner diffuser a "walkability" of the housing according to the invention is ensured. Furthermore, a plug connection between the inner diffuser and the motor flange may be provided, whereby the assembly is substantially simplified.
Vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen enthalten und werden an Hand der in den beiliegenden Zeichnungen dargestellten Ausführungsbeispiele näher erläutert. Es zeigen:
- Fig. 1
- eine perspektivische Ansicht von oben auf ein erfindungsgemäßes Gehäuse mit darin befindlichem Elektromotor mit montiertem Lüfterrad,
- Fig. 2
- einen Schnitt entlang der Schnittlinie II-II in
Fig. 1 , - Fig. 3
- eine perspektivische Ansicht von unten auf einen erfindungsgemäßen Außendiffusor mit montiertem Elektromotor und Axiallüfterrad,
- Fig. 4
- eine Einzelheit bei IV in
Fig. 2 , - Fig. 5
- eine perspektivische Ansicht eines erfindungsgemäßen Innendiffusors ohne Abschlussdeckel,
- Fig. 6
- eine Teilansicht einer weiteren Ausführungsform eines erfindungsgemäßen Gehäuses,
- Fig. 7
- eine perspektivische Ansicht eines erfindungsgemäßen Gehäuses mit Tragstern mit Steckverbindung für einen erfindungsgemäßen Innendiffusor vor einer Montage des Außen- und Innendiffusors,
- Fig. 8
- eine Einzelheit gemäß
Fig. 7 bei A, - Fig. 9
- eine perspektivische Ansicht eines erfindungsgemäßen Steckverbinders und
- Fig. 10
- eine Teilansicht gemäß
Fig. 8 mit aufgestecktem Innendiffusor.
- Fig. 1
- a perspective view from above of an inventive housing with befindlichem electric motor with mounted fan,
- Fig. 2
- a section along the section line II-II in
Fig. 1 . - Fig. 3
- a perspective view from below of an outer diffuser according to the invention with mounted electric motor and axial fan,
- Fig. 4
- a detail at IV in
Fig. 2 . - Fig. 5
- a perspective view of an internal diffuser according to the invention without end cap,
- Fig. 6
- a partial view of another embodiment of a housing according to the invention,
- Fig. 7
- a perspective view of a housing according to the invention with a star carrier with plug connection for an internal diffuser according to the invention prior to assembly of the outer and inner diffuser,
- Fig. 8
- a detail according to
Fig. 7 at a, - Fig. 9
- a perspective view of a connector according to the invention and
- Fig. 10
- a partial view according to
Fig. 8 with attached inner diffuser.
In den
Wie sich aus den
Wie insbesondere
Weiterhin ist aus
Wie weiterhin den
Dabei ist die Anordnung des Innendiffusors 26 vorzugsweise zentrisch zur Längsachse X-X. Der Innendiffusor 26 erstreckt sich von der Einströmöffnung 7 bis zur Ausströmöffnung 8 und weist eine geschlossene Umfangswandung 27 auf. Im Bereich der Einströmöffnung 7 ist der Innendiffusor 26 mit dem Motorflansch 16 des Motorgehäuses 17 verbindbar. Hierzu weist der Innendiffusor 26 im Verbindungsbereich mit dem Motorflansch 16 einen im Querschnitt kreisförmigen, ringförmigen Abschnitt 28 mit dem Innendurchmesser d1 auf, der in einen Luftleitabschnitt 29 mit einem insbesondere viereckigen, insbesondere quadratischen Querschnitt mit vorzugsweise abgerundeten Ecken übergeht. Was die Ausbildung des Außendiffusors 6 und des Innendiffusors 26 betrifft, wird im Übrigen in vollem Umfang auf die
Weiterhin ist den
Weiterhin ist zu erkennen, dass der Innendiffusor 26 erfindungsgemäß einen Abschlussdeckel 43 aufweist, der auf dem Schutzgitter 36 auf seiner in Ausströmrichtung weisenden Seite aufliegt und mit dem Luftleitabschnitt 29 über Befestigungsmittel, beispielsweise Schrauben, derart lösbar verbunden ist, dass das Schutzgitter 36 zwischen dem Abschlussdeckel 43 und dem Luftleitabschnitt 29 eingeschlossen ist. Zum Befestigen des Abschlussdeckels 43 mittels Schrauben dienen die Anschlussdome 33 in den Ecken 32 des Innendiffusors 26, in dem die Schrauben durch den Abschlussdeckel 43 hindurch in die Anschlussdome 33 eingeschraubt werden. Zur Aufnahme des Schutzgitters 36 mit seinen Gitterdrähten 38 im Randbereich des Luftleitabschnittes 29 weist dieser erfindungsgemäß ebenfalls Ausnehmungen 44 auf, die der Form und Größe der Gitterdrähte 38 angepasst sind.Furthermore, it can be seen that the
Weiterhin ist zu erkennen, dass der Innendiffusor 26 im Bereich seines Ringabschnittes 28 insbesondere in den Diffusorinnenraum ragende Ausbuchtungen 46 besitzt. Durch die von den Ausbuchtungen 46 gebildeten Kanäle verlaufen die Speichen der Streben 14 im montierten Zustand, so dass der Außenwandbereich des Innendiffusors 26 durch die Streben 14 nicht unterbrochen wird, sondern eine geschlossene Wandfläche auch in diesem Bereich bildet.Furthermore, it can be seen that the
Eine erfindungsgemäße Diffusoreinheit bestehend aus dem Außendiffusor 6 und dem Innendiffusor 26 einschließlich des Schutzgitters 36 und des Abschlussdeckels 13 kann in ihrem vormontierten Zustand mit der Ventilatoreinheit, bestehend aus Ventilator 1, dem Wandring 2 und dem aus den Streben 14 und dem Ringflansch 14a gebildeten Tragstern zweckmäßigerweise durch Aufstecken und Verschrauben verbunden werden. Das Verschrauben erfolgt zweckmäßigerweise wie zu
In
Wie insbesondere aus
Die Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsbeispiele beschränkt, sondern der Schutzumfang wird durch die nachfolgenden Ansprüche bestimmt.The invention is not limited to the illustrated and described embodiments, but the scope of protection is determined by the following claims.
Claims (13)
- A housing for an axial ventilator (1), consisting of a wall ring (2) with an inlet nozzle section (3) and an annular outside diffusor (6) connected to the wall ring (2) on the outlet side and having an inlet opening (7) and an outlet opening (8) as well as a holder for an electric motor (9) of the ventilator (1), which is situated in the interior of the housing, wherein the holder consists of a plurality of struts (14) that can be attached at the edge of the inlet opening (7) of said holder to an interior circumferential surface of the outside diffusor (6), said struts being fastened thereto at one end and spaced at distances from one another circumferentially, and the other end of said struts can be mounted onto a motor flange (16) of a motor housing (17) of the electric motor (9), and wherein the outside diffusor (6) widens conically from its inlet opening (7) to its outlet opening (8) with a cone angle (α) in relation to its central longitudinal axis (X-X),
wherein
situated in the outside diffusor (6) is an inner diffusor (26) that extends from the inlet opening (7) to the outlet opening (8) and which has a closed circumferential wall (27) and which can be connected to the motor flange (16) of the motor housing (17) in the surface of the inlet opening (7), wherein the motor housing (17) of the electric motor (9) can be placed in the interior of the inner diffusor (26), and wherein
a protective grating (36) is affixed in an opening plane of the outlet opening (8) that extends perpendicular to the longitudinal axis (X-X), which protective grating is connected at its external circumferential edge (37) to the outside diffusor (6), wherein the outside diffusor (6) in its circumferential wall in the surface of the outlet opening (8) has recesses (41) for the insertion of grating wires (38) of the protective grating (36),
characterized in that the outside diffusor (6) is formed by at least two partial ring segments (12) that are connected by mechanical connection means (13) at the external circumferential surface of the outside diffusor, wherein
wall areas (31) of the inner diffusor (26) have at the edge of their free ends recesses (44) for the insertion of the grating wires (38), and the inner diffusor (26) has an end cover (43) which is supported on the protective grating (36) on its side facing in the outlet direction and which is fastened to an air guiding section (29) via fastening devices so that the protective grating (36) is enclosed between the end cover (43) and the air guiding section (29), wherein
the inner diffusor (26) can be connected via a plug connection (50, 60) to the motor flange (16)
wherein preferentially
the plug connection is formed by a plurality of snap-in connectors (50) which are attached to a ring flange (14a) that connects the struts (14) at their ends,
wherein
the snap-in connectors (50) each consist of a snap-in hook. - The housing of claim 1,
characterized in that the outside diffusor (6) is formed by four partial ring segments (12). - The housing of claim 1 or 2,
characterized in that four struts (14) at a distance to another are present which in particular each consist of two parallel spokes. - The housing of any one of the claims 1 through 3,
characterized in that the outside diffusor (6) opens conically from the in cross-section circular inlet opening (7) to the in cross-section circular outlet opening (8) at a cone angle (α) of between 10° to 18°, especially 12° to 15°, in relation to its central longitudinal axis (X-X). - The housing of any one of the claims 1 through 4,
characterized in that the outside diffusor (6) is made from plastic. - The housing of any one of the claims 1 through 5,
characterized in that the outside diffusor (6) has a height (L) measured in the direction of the longitudinal axis (X-X) above the paddles of the paddle wheel (11) of the axial ventilator (1) arranged in the wall ring (2), which is larger/equal to 200 mm up to 800 mm inclusively, with a ratio L/D1 of 0.25 to 1.0, preferentially 0.25 to 0.8, wherein D1 is the diameter of the inlet opening (7). - The housing of any one of the claims 1 through 6,
characterized in that the circumferential wall (27) in the connection surface for the motor flange (16) has an, in cross-section, circular, ring-shaped section (28) that transitions into the air guiding section (29) with an in
particular rectangular cross section, wherein its edges (32) are preferentially rounded, wherein preferentially
the air guiding section (29), starting at the ring-shaped section (28), has an outlet surface (A2i) that changes towards the opposite end, wherein the ideal surface change (ΔAi) in relation to its inlet surface (A1i) is determined using an expansion factor (k) with - The housing of any one of the claims 1 through 7,
characterized in that the wall ring (2), the outside diffusor (6) and the struts (14) can be fastened using fastening devices (18, 19, 21, 22, 23), wherein preferentially
the wall ring (2) and the outside diffusor (6) have respective radially orientated contact surfaces (19, 21) corresponding to the circumference which are touching each other in the fastened state and which are fastened to each other with fastening devices (22) running in the direction of the longitudinal axis (X-X) and which are fastened to the struts (14). - The housing of any one of the claims 1 through 8,
characterized in that the wall ring (2) with its inlet nozzle section (3) projects in the outside diffusor (6) through its inlet opening (7) so that in an overlap surface an axial gap (47) in the direction of the central longitudinal axis (X-X) is created, wherein preferentially
the struts (14) fasten the outside diffusor (6) and the wall ring (2) to the motor housing (17) with fastening devices running radially to the longitudinal axis (X-X), wherein preferentially
the outside diffusor (6) has a plurality of fastening surfaces (18) that are widened towards the exterior and which have at their free ends an angular deflection (19), wherein the angle (β) of the angular deflection (19) is ≥ 90° + α, with α = cone angle of the outside diffusor (6). - The housing of claim 1,
characterized in that the snap-in hook has a fastening surface (51) for fastening to the ring flange (14a) and a lock surface (53) in axial direction from said ring flange (14a), wherein preferentially the fastening surface (51) has the form of an external thread surface with circumferential external thread (52), and/or wherein preferentially a contact surface (54) is between the fastening surface (51) and the lock surface (53). - The housing of claim 10,
characterized in that the lock surface (53) consists of a shaft (55) to which are attached at least two radially elastic connectors (57) with circumferential distance to another and running along the longitudinal axis (X-X) of the snap-fit connector (50) and said radially elastic connectors (57) run from a tip (56) of the shaft (55) in the direction of the fastening surface (51) and which together enclose an angle (δ) of 36° ± 3° and which preferentially have at their ends in the direction of the longitudinal axis (X-X) angled deflections (58), wherein preferentially
the tip (56) has the shape of a truncated cone wherein the smaller truncated cone surface is located at the free end of the tip (56). - The housing of claim 11,
characterized in that the interior diffusor (26) has holes (60) in fastening clips (34) the diameter of which is so adjusted to the radial spaces (A, B) of the spring arms that the connector arms (57) when inserting the snap-fit connector (50) are radially compressed and spring back again after termination of the insertion process and that in this position the fastening clips (34) engage at the edge of the holes (60) and with the pretension of the angled deflections (58) fit to the edge created by the holes (60), wherein preferentially
the angled deflections (58) have such an angle towards the longitudinal axis (X-X) that a self-locking effect occurs in case of contact with the edge of the holes (60). - The housing of claim 12,
characterized in that the snap-fit connector (50) is made as plastic-molded part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13717754.9A EP2904270B1 (en) | 2012-10-08 | 2013-04-12 | Housing for an axial ventilator |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12187622.1A EP2716915B1 (en) | 2012-10-08 | 2012-10-08 | Housing for an axial ventilator |
EP13717754.9A EP2904270B1 (en) | 2012-10-08 | 2013-04-12 | Housing for an axial ventilator |
PCT/EP2013/057667 WO2014056630A1 (en) | 2012-10-08 | 2013-04-12 | Housing for an axial fan |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2904270A1 EP2904270A1 (en) | 2015-08-12 |
EP2904270B1 true EP2904270B1 (en) | 2019-02-27 |
Family
ID=47172289
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12187622.1A Active EP2716915B1 (en) | 2012-10-08 | 2012-10-08 | Housing for an axial ventilator |
EP13717754.9A Active EP2904270B1 (en) | 2012-10-08 | 2013-04-12 | Housing for an axial ventilator |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12187622.1A Active EP2716915B1 (en) | 2012-10-08 | 2012-10-08 | Housing for an axial ventilator |
Country Status (7)
Country | Link |
---|---|
US (1) | US10107306B2 (en) |
EP (2) | EP2716915B1 (en) |
CN (1) | CN104755764B (en) |
ES (1) | ES2537709T3 (en) |
HU (1) | HUE026127T2 (en) |
PT (1) | PT2716915E (en) |
WO (1) | WO2014056630A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD818103S1 (en) * | 2014-12-02 | 2018-05-15 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Ventilator |
DE102015201704A1 (en) * | 2015-01-30 | 2016-08-04 | Ebm-Papst Mulfingen Gmbh & Co. Kg | recording system |
CN104763658B (en) * | 2015-03-12 | 2017-04-26 | 福建亚伦电子电器科技有限公司 | Fan |
DE102015205424A1 (en) * | 2015-03-25 | 2016-09-29 | Ebm-Papst Mulfingen Gmbh & Co. Kg | vane |
CN105443446B (en) * | 2015-12-02 | 2018-04-13 | 珠海格力电器股份有限公司 | Electric fan head locking structure and electric fan |
CN105736480B (en) * | 2016-04-28 | 2020-06-02 | 深圳市大雅医疗技术有限公司 | Small fan, air inlet noise reduction device thereof and breathing machine adopting fan |
DE102017130767A1 (en) * | 2017-12-20 | 2019-06-27 | Minebea Mitsumi Inc. | Flow-optimized axial fan |
CN108332399A (en) * | 2018-03-07 | 2018-07-27 | 广东美的制冷设备有限公司 | The intermediate air duct of air-conditioning and air-conditioning |
JP6899918B2 (en) * | 2018-03-07 | 2021-07-07 | 広東美的制冷設備有限公司Gd Midea Air−Conditioning Equipment Co.,Ltd. | Intermediate duct of air conditioner and air conditioner |
DE102018004605B4 (en) * | 2018-06-11 | 2022-09-01 | Felix Müller | Fan attachment to optimize mix ventilation |
DE102022134376A1 (en) | 2022-12-21 | 2024-06-27 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Flow guide device and fan device |
DE102022134377A1 (en) | 2022-12-21 | 2024-06-27 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Flow guide device and fan unit with the flow guide device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120039731A1 (en) * | 2010-08-12 | 2012-02-16 | Ziehl-Abegg Ag | Ventilator |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB407268A (en) * | 1933-09-02 | 1934-03-15 | John Marshall | Means for obtaining access to power driven fans of the axial flow type and other parts located in ventilating shafts and like conduits |
US2144035A (en) | 1935-09-20 | 1939-01-17 | Bendix Prod Corp | Fan blast transformer |
GB664011A (en) * | 1949-09-19 | 1952-01-02 | Davidson & Co Ltd | Improvements in or relating to ventilating fans |
US4353680A (en) * | 1979-06-19 | 1982-10-12 | Tokyo Shibaura Denki Kabushiki Kaisha | Exhaust fan with removable face cover |
US5567200A (en) * | 1993-12-01 | 1996-10-22 | Ctb Inc. | Method and apparatus for circulating air |
US5716161A (en) * | 1996-08-22 | 1998-02-10 | Ankara Industries, Inc. | Retainer clip |
US6910840B2 (en) * | 2003-06-06 | 2005-06-28 | National Molding Corp. | Fastener |
JP4534745B2 (en) * | 2004-12-15 | 2010-09-01 | 株式会社日立プラントテクノロジー | Axial blower |
DE202008002356U1 (en) * | 2008-02-19 | 2009-06-25 | Ebm-Papst Mulfingen Gmbh & Co. Kg | compact fans |
JP5289200B2 (en) * | 2009-06-19 | 2013-09-11 | 三菱電機株式会社 | Air conditioner outdoor unit |
DE202010016820U1 (en) * | 2010-12-21 | 2012-03-26 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Diffuser for a fan and fan assembly with such a diffuser |
CN201902347U (en) * | 2010-12-29 | 2011-07-20 | 浙江金盾风机风冷设备有限公司 | Axial flow ventilator for automotive test |
CN102182698B (en) * | 2011-05-27 | 2015-12-09 | 北京精诚博桑科技有限公司 | A kind of high-efficiency axial-flow blower of Far Range low noise and spraying device |
US9157453B2 (en) * | 2011-08-23 | 2015-10-13 | Ctb, Inc. | Plastic fan shroud and cone assembly and method |
USD728090S1 (en) * | 2012-10-11 | 2015-04-28 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Electric fan |
-
2012
- 2012-10-08 HU HUE12187622A patent/HUE026127T2/en unknown
- 2012-10-08 ES ES12187622.1T patent/ES2537709T3/en active Active
- 2012-10-08 PT PT121876221T patent/PT2716915E/en unknown
- 2012-10-08 EP EP12187622.1A patent/EP2716915B1/en active Active
-
2013
- 2013-04-12 EP EP13717754.9A patent/EP2904270B1/en active Active
- 2013-04-12 US US14/433,913 patent/US10107306B2/en active Active
- 2013-04-12 WO PCT/EP2013/057667 patent/WO2014056630A1/en active Application Filing
- 2013-04-12 CN CN201380052638.3A patent/CN104755764B/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120039731A1 (en) * | 2010-08-12 | 2012-02-16 | Ziehl-Abegg Ag | Ventilator |
Also Published As
Publication number | Publication date |
---|---|
HUE026127T2 (en) | 2016-05-30 |
EP2716915A1 (en) | 2014-04-09 |
US20150267716A1 (en) | 2015-09-24 |
CN104755764A (en) | 2015-07-01 |
ES2537709T3 (en) | 2015-06-11 |
EP2904270A1 (en) | 2015-08-12 |
CN104755764B (en) | 2017-03-08 |
US10107306B2 (en) | 2018-10-23 |
PT2716915E (en) | 2015-07-07 |
EP2716915B1 (en) | 2015-03-18 |
WO2014056630A1 (en) | 2014-04-17 |
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