EP4083435A1 - Carter de soufflante et soufflante radiale - Google Patents

Carter de soufflante et soufflante radiale Download PDF

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Publication number
EP4083435A1
EP4083435A1 EP22165738.0A EP22165738A EP4083435A1 EP 4083435 A1 EP4083435 A1 EP 4083435A1 EP 22165738 A EP22165738 A EP 22165738A EP 4083435 A1 EP4083435 A1 EP 4083435A1
Authority
EP
European Patent Office
Prior art keywords
housing
fan
motor
air inlet
radial
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.)
Pending
Application number
EP22165738.0A
Other languages
German (de)
English (en)
Inventor
Robert Blaz
Martin Kuco
Gert Meinhardt
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4083435A1 publication Critical patent/EP4083435A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/424—Double entry casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/162—Double suction 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
    • 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
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans

Definitions

  • the present invention relates to a fan housing and a radial fan, in particular for an extractor device.
  • the radial fan has at least one axial air inlet opening and one radial air outlet opening.
  • the radial fan consists of a housing assembly and a fan assembly, which includes an electric motor and a fan wheel, with the housing assembly having at least one holding part, which is arranged in the area of the axial air inlet opening and is used to support a carrier part of the fan assembly, and two detachably connectable to the air inlet opening has dividing shell parts, between which the holding part is fastened in the assembled state, and a terminal box for accommodating motor connections.
  • a holding part is held on each side of the fan housing between the upper and lower shell parts.
  • a disadvantage of this design of the radial fan is that its installation is complex.
  • the object of the present invention is therefore to create a solution by means of which a radial fan can be installed as simply as possible.
  • the object is therefore achieved by a fan housing for a radial fan, the fan housing having two air inlet openings and two housing shells.
  • the fan housing is characterized in that one of the air inlet openings is formed in each of the housing shells and a motor mount is arranged on each air inlet opening.
  • the housing in which the motor of the radial fan is housed is called the fan housing.
  • the motor of the radial fan is preferably an external rotor motor, which consists of a stationary shaft and a rotor mounted on it.
  • the fan wheel is formed on the outer circumference of the rotor.
  • the blower housing provides preferably a spiral housing.
  • the fan housing is formed by two housing shells.
  • the housing shells are preferably designed as housing halves.
  • the housing shells are connected to one another with their open sides facing one another.
  • One of the two air inlet openings of the housing is formed in each of the housing shells. In particular, there is an air inlet opening in each housing shell.
  • the air inlet opening is in the bottom of the housing shell.
  • the fan housing also has a radial air outlet opening. This is formed by recesses on the housing shells after the housing shells have been assembled.
  • a motor mount is arranged at each of the air intake openings.
  • a motor mount is a device that can hold at least the end of the motor shaft of the motor or a shaft on which the motor shaft is held.
  • the engine mount preferably has a ring shape or cup shape.
  • the motor mount is preferably arranged centrally on the air inlet opening.
  • an air inlet opening is formed in each of the housing shells in the case of the fan housing according to the invention and a motor mount is arranged at the air inlet opening, assembly of the fan housing is simplified. In particular, it is not necessary to position and align a fastening element in the air inlet opening during assembly. Instead, in the case of the fan housing according to the invention, the motor mount is already provided on the air inlet opening before the fan housing is installed. Thus, when assembling the radial fan, it is only necessary to place the motor between the housing shells and to connect the housing shells to one another.
  • the motor mount is held at the air intake opening by at least one connecting arm.
  • a connecting arm is understood to be a rod or strut that holds the motor mount in position in the air intake opening.
  • the connecting arm has a small cross section.
  • one end of the connecting arm is connected to the perimeter of the air intake opening of the housing shell and the other end of the connecting arm is connected to the motor mount.
  • the connecting arm preferably extends radially inward from the periphery of the air inlet opening.
  • the connecting arm is preferably inclined in the direction of the open side of the housing shell on which this connecting arm is provided.
  • the motor mount thus lies in a plane which is offset from the bottom of the housing shell, in which the air inlet opening is formed, towards the open side of the housing shell.
  • connection between the connecting arm and the housing shell is preferably non-detachable.
  • connection of the motor mount to the connecting arm is preferably non-detachable.
  • the connecting arm is designed in one piece with the housing shell and the motor mount.
  • the housing shell, link arm, and motor mount may be injection molded as one component. Because the connecting arm is in one piece with the housing shell and the motor mount, the stability of the housing is also ensured, in particular with regard to the mount of the motor in the fan housing.
  • At least one of the housing shells has a connecting element for connecting to the other housing shell.
  • the connecting element can represent a latching element.
  • Blower housings only have to be connected to one another, and as a result the motor is also held in the blower housing by the motor mounts. The requirements on the connecting element for connecting the two housing shells are therefore reduced.
  • the fact that the connecting element is provided on at least one housing shell reduces the number of parts required to assemble the fan housing.
  • the connecting element is a latching element.
  • a latching element can be provided on one housing shell and a corresponding latching recess for interaction with the latching element can be provided on the other housing shell. This configuration further simplifies the assembly of the fan housing, since no tools are required for assembly.
  • the present invention relates to a radial fan, which is characterized in that the radial fan has a fan housing according to the invention and a motor with a fan wheel running around a stationary motor shaft.
  • the motor of the radial fan is preferably an electric motor, in particular an external rotor motor.
  • the motor shaft preferably extends in the radial fan between the air inlet openings of the housing and the ends of the motor shaft are held in the motor mounts, which are arranged at the air inlet openings.
  • the parting plane of the fan housing between the housing shells runs perpendicular to the axis of the motor shaft.
  • the housing shells can be connected to one another and the motor with the fan wheel can be accommodated between them.
  • the parting plane runs through the middle of the length of the motor shaft.
  • the dimensions of the two housing shells can be the same in the direction of the motor shaft.
  • the motor mount has a receiving space for the shaft of the motor, in particular one end of the motor shaft.
  • the motor mount has a diameter that corresponds at least to the diameter of the shaft of the motor of the radial fan.
  • the motor mount can have a receiving space for the shaft of the motor, in particular an end of the motor shaft, and a damping element surrounding the shaft. In this embodiment, the diameter of the accommodating space is larger than that of the motor shaft.
  • the receiving space is designed to receive one end of a shaft on which the motor shaft is held.
  • the diameter of the receiving space can correspond to the diameter of the shank.
  • the receiving space can be designed to receive the end of the shaft and a damping element surrounding it. In this embodiment, the diameter of the receiving space is larger than the diameter of the shank.
  • FIG 1 an embodiment of a radial fan 1 according to the invention is shown.
  • a segment of the radial fan 1 is cut away in order to allow a view into the interior of the radial fan 1 .
  • the radial fan 1 consists of a fan housing 10 and a motor 11 mounted therein.
  • the motor 11 is an electric motor with a stationary motor shaft 110 and a fan wheel 111 attached to the outer cylindrical surface of the rotor running on the motor shaft 110.
  • the motor shaft 110 is in the Fan housing 10 held.
  • the blower housing 10 consists of two housing shells 100 and 101. In each of the housing shells 100, 101, an air inlet opening 102 is provided in the center.
  • Air can be sucked in via the air inlet openings 102 when the radial fan 1 is in operation.
  • the air is then discharged via the radial air outlet 107 which is located in the lateral surface of the fan housing 10. in the in figure 1 shown embodiment is provided in the air outlet 107 an annular outlet port 108.
  • the air outlet 107 is formed by recesses in the housing shells 100, 101.
  • the outlet socket 108 can be introduced into the air outlet 107 .
  • one half of the outlet socket 108 is formed on the housing shell 100 and the housing shell 101 and the outlet socket 108 is formed by joining the housing shells 100, 101 together.
  • the dividing plane T which divides the fan housing 10 into the housing shells 100, 101, is perpendicular to the axis of the motor shaft 110.
  • Connection arms 105 are provided on each of the housing shells 100, 101.
  • the connecting arms 105 are used to hold the motor shaft 110.
  • the connecting arms 105 are arranged in such a way that they extend radially inwards from the circumference of the air inlet opening 102.
  • the connecting arms 105 are formed so that they are directed inward of the fan housing 10 .
  • a motor mount 103,104 is provided at the end of the link arm 10 opposite the end at which it is attached to the air intake port 102.
  • right housing shell 100 is the motor mount with 103 and in the figure 2 Left housing shell 101 shown, the motor mount is denoted by 104 .
  • the motor mounts 103, 104 are designed as a ring in the embodiment shown.
  • Motor mounts 103, 104 engage opposite ends of motor shaft 110, respectively.
  • the ends of the motor shaft 110 can optionally Damping element in the opening of the annular motor mount 103, 104 are added.
  • the housing shells 100, 101 are attached to one another via connecting elements 106.
  • the motor 11 To assemble the radial fan 1, only the motor 11 has to be positioned between the housing shells 100, 101 and the housing shells 100, 101 connected to one another.
  • the motor 11 is held in the fan housing 10 by the motor mounts 103 , 104 provided on the connecting arms 105 .
  • FIG 2 a further embodiment of a radial fan 1 is shown.
  • the embodiment of the centrifugal fan shown in figure 2 shown differs from the embodiment shown in FIG figure 1 in particular in that the radial air outlet 107 of the fan housing in the second embodiment has no exhaust port. Rather, the radial air outlet opening in the second embodiment has a rectangular cross section.
  • one of the motor mounts 104 is formed by a cup-shaped member.
  • the motor mount 103 is formed by an annular member as in the first embodiment.
  • a damping element 112 is accommodated in each of the motor mounts 103, 104, via which one end of the motor shaft 110 is held in the motor mount 103, 104 in each case. The motor shaft 110 is thus held in the motor mounts 103, 104 in a rotationally fixed manner.
  • the fan housing 10 is formed by two housing shells 100, 101, which are connected at a parting plane T, which is perpendicular to the axis of the motor shaft 110.
  • connection arms can be two, three, four, five or more.
  • shape of the motor mount may differ from the shape shown.
  • the motor mount only has to be designed in such a way that a fixed part of the motor, for example an end of the motor shaft or a shaft, can be accommodated directly or indirectly in it and preferably held in a twist-proof manner.
  • the present invention creates a design of a fan preferably consisting of an electric motor with a standing shaft (external rotor), fan wheel attached to the outer cylindrical surface of the rotor of the electric motor, and two fan housing shells, which allows easy assembly of the fan.
  • the present invention has a number of advantages.
  • assembly can be carried out without any additional parts take place.
  • the two housing shells can, for example, be locked together or joined together with additional connecting elements.
  • the connecting arms and the motor mounts provided thereon the motor of the radial fan is also automatically fixed.
  • the present invention is advantageous due to the reduced number of necessary components of the fan and the simple assembly of the fan without additional components such as screws and brackets.
  • the fan housing according to the invention can consist of only two housing shells.
  • the assembly of the engine can thus be done easily, quickly and inexpensively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP22165738.0A 2021-04-27 2022-03-31 Carter de soufflante et soufflante radiale Pending EP4083435A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021204150.7A DE102021204150A1 (de) 2021-04-27 2021-04-27 Gebläsegehäuse und Radialgebläse

Publications (1)

Publication Number Publication Date
EP4083435A1 true EP4083435A1 (fr) 2022-11-02

Family

ID=80999154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22165738.0A Pending EP4083435A1 (fr) 2021-04-27 2022-03-31 Carter de soufflante et soufflante radiale

Country Status (2)

Country Link
EP (1) EP4083435A1 (fr)
DE (1) DE102021204150A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2236838A1 (fr) 2009-03-25 2010-10-06 ebm-papst Mulfingen GmbH & Co. KG Ventilateur radial
EP3415777A1 (fr) * 2017-06-13 2018-12-19 ebm-papst Mulfingen GmbH & Co. KG Partie boîtier de ventilateur doté de logement de palier ainsi que ventilateur

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2236838A1 (fr) 2009-03-25 2010-10-06 ebm-papst Mulfingen GmbH & Co. KG Ventilateur radial
EP3415777A1 (fr) * 2017-06-13 2018-12-19 ebm-papst Mulfingen GmbH & Co. KG Partie boîtier de ventilateur doté de logement de palier ainsi que ventilateur

Also Published As

Publication number Publication date
DE102021204150A1 (de) 2022-10-27

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