EP4184066A1 - Belüftungsvorrichtung für haushaltsgeräte - Google Patents

Belüftungsvorrichtung für haushaltsgeräte Download PDF

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Publication number
EP4184066A1
EP4184066A1 EP22208780.1A EP22208780A EP4184066A1 EP 4184066 A1 EP4184066 A1 EP 4184066A1 EP 22208780 A EP22208780 A EP 22208780A EP 4184066 A1 EP4184066 A1 EP 4184066A1
Authority
EP
European Patent Office
Prior art keywords
frame
connector
central axis
impeller
cable
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
EP22208780.1A
Other languages
English (en)
French (fr)
Inventor
Stefano SEGHEZZI
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.)
Comestero Sistemi Srl
Original Assignee
Comestero Sistemi Srl
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 Comestero Sistemi Srl filed Critical Comestero Sistemi Srl
Publication of EP4184066A1 publication Critical patent/EP4184066A1/de
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
    • 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
    • F04D25/0693—Details or arrangements of the wiring
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans

Definitions

  • the present invention relates to a ventilation device for household appliances of the type specified in the preamble to the first claim.
  • the present invention relates to a ventilation device for household appliances in the context of the white goods industry such as, for example, washing machines, refrigerators, air conditioners and other similar apparatuses.
  • the air conditioners the refrigerators, the washing machines and other devices that generally consist of a motor to drive one or more control units.
  • the heat pump is basically a device configured to produce thermal energy. Generally, the heat pump is coupled with at least one fan to ventilate it.
  • the household appliances usually comprise at least one fan, preferably an axial fan, for ventilating the same or certain parts thereof such as the motor or the heat pump or other devices.
  • the fan essentially comprises a impeller, or cochlea, rotatably constrained within a frame, usually having a square cross-section, and operatively connected to a drive unit positioned in the fulcrum area of the impeller configured to rotate the impeller when electrically powered in relation to external signals.
  • connection of the drive unit to the power and control system is usually made via two or more cables. These cables run out of the frame, from the drive unit, and terminate with a pin that can be connected to the power and control system. Examples of these types of fans, now widely used, are the common computer fans. The known technique described includes some important drawbacks.
  • cables coming out of the frame often dangle inside the household appliance, interfering with other devices or taking up space needed to house other components.
  • these cables must be connected to the power and control system and, therefore, it can be complicated and inconvenient to connect the pin to the system, as is usually the case with computers.
  • the technical task underlying the present invention is to devise a ventilation device for household appliances capable of substantially obviating at least part of the aforementioned drawbacks.
  • Another important scope of the invention is to achieve a ventilation device for household appliances which allows to increase the convenience of installation of the device within the household appliance.
  • a further task of the invention is to obtain a ventilation device for household appliances which allows for a pre-configurable household appliance, in terms of wiring, prior to the installation of the various components, in particular of the ventilation device or devices, avoiding the need to carry the cables of each device to the power and control system.
  • the measurements, values, shapes and geometric references (such as perpendicularity and parallelism), when associated with words like "about” or other similar terms such as “approximately” or “substantially”, are to be considered as except for measurement errors or inaccuracies due to production and/or manufacturing errors, and, above all, except for a slight divergence from the value, measurements, shape, or geometric reference with which it is associated.
  • these terms if associated with a value, preferably indicate a divergence of not more than 10% of the value.
  • treatment refers to the action and/or processes of a computer or similar electronic calculation device that manipulates and/or transforms data represented as physical, such as electronic quantities of registers of a computer system and/or memories in, other data similarly represented as physical quantities within computer systems, registers or other storage, transmission or information displaying devices.
  • the ventilation device for household appliances is globally referred to as number 1.
  • the device 1 is substantially configured to allow ventilation of components of a household appliance.
  • the latter may be any apparatus of the white sector, for example a refrigerator, an air conditioner, a dryer or others.
  • the device 1 is suitable for use in a washing machine.
  • the washing machine may comprise, as is known, a heat pump.
  • a washing machine according to the invention may comprise a heat pump and the device 1. The latter is, therefore, configured to ventilate the heat pump.
  • the device in detail, comprises at least one fan 2.
  • the fan 2 is preferably axial. Therefore, the fan 2 is essentially a fan preferably similar to the fans found on common computers, in particular within the enclosures of desktop computers.
  • the fan 2 comprises at least a frame 3 and an impeller 4.
  • the frame 3 is preferably a frame. Thus, the frame 3 preferably extends over a closed path.
  • the frame 3 defines a central axis 3a.
  • the central axis 3a is essentially the axis around which the frame 3 extends.
  • the frame 3 additionally defines an at least one internal wall 30 and an external wall 31.
  • the internal wall 30 and the external wall 31 are wrapped around the central axis 3a.
  • the internal wall 30 faces towards, and faces onto, the central axis 3a.
  • the external wall 31 faces outwards.
  • the frame 3 may be annular and the surfaces 30, 31 may be circular strings.
  • the frame 3 may define a square shape, for example rectangular or, more preferably, square.
  • the frame 3 defines a plurality of edges 32.
  • the edges 32 are essentially areas of the frame 3 in which the surfaces 30, 31, or the sides of the frame 3, abruptly change direction.
  • the surfaces 30, 31 of the frame 3 may be mostly flat, at least in places.
  • the outer surface 31 may be concave.
  • the outer surface 31 may define borders 33 and a groove 34.
  • the groove 34 is substantially a cavity extending, preferably but not necessarily continuously, around the central axis 3a.
  • edges 33 are substantially the lateral outer surface portions 31.
  • the groove 34 is positioned between the edges 33.
  • the impeller 4 is, therefore, constrained in a compliant way to the frame 3.
  • the impeller 4 may be directly constrained in a compliant way to the frame 3 or constrained to the frame 3 by means of a further component, described below.
  • the impeller 4 in general, is positioned within the internal wall 30. Therefore, the internal wall 30 surrounds the impeller 4, preferably without contacting each other. Thus, the impeller 4 is rotatable, with respect to the frame 3, about the central axis 3a.
  • the impeller 4 is substantially a multi-blade element, i.e. having a plurality of blades rotating rigidly around the central axis 3a.
  • the impeller 2 preferably comprises a drive unit 5.
  • the unit 5 is preferably positioned at the central axis 3a.
  • the unit 5 may be the connecting component between the frame 3 and the impeller 4.
  • the impeller 4 may be constrained in a compliant way to the frame 3 via the unit 5.
  • the latter is thus preferably constrained rigidly to the frame 3 preferably in the previously described position.
  • the unit 5 is operatively connected to the impeller 4.
  • the unit 5 is configured to rotate the impeller 4 around the central axis 3a in proportion to electrical signals.
  • the unit 5 includes an electric motor.
  • the electric motor preferably includes a rotating shaft centred with respect to the central axis 3a.
  • the rotating shaft if present, is naturally rigidly connected to the impeller 4.
  • the unit 5 is electromechanical.
  • the impeller 2 also comprises at least one cable 6.
  • the cable 6 is an electrical cable. Furthermore, the cable 6 is connected, it is understood electrically or operationally, to the unit 5. If unit 5 includes the electric motor, cable 6 is operatively connected to the electric motor to power it.
  • the cable 6 defines at least one terminal in the vicinity of the central axis 3a and may extend outwards.
  • the frame 3 comprises a guide 35.
  • the guide 35 is configured to accommodate at least part of the cable 6. Furthermore, preferably, the guide 35 is accessible from the outside. In addition, the guide 35 extends at least partially radially, relative to the central axis 3a, so as to be able to contain and convey the incoming cable 6 from the unit 5.
  • the device 1 comprises a further element.
  • the device 1 comprises a connector 7.
  • the connector 7 is of the IDC type.
  • the connector 7 may be of the RAST type, more particularly still of the RAST 2.5 type.
  • connector 7 can be of the insulation perforation type.
  • connector 7 may be of the female type.
  • the connector 7 is connected to at least the cable 6. Therefore, preferably, if the frame 3 comprises the guide 35, the latter accommodates the cable 6 between the unit 5 and the connector 7.
  • the connector 7 faces outwards, for example perpendicularly to the outer surface 30.
  • the connector 7 is configured to be connected to an external power supply and control system of a household appliance, for example a washing machine.
  • the connector 7 is positioned on the external wall 31.
  • connector 7 could be positioned near the edges 32.
  • the connector 7 could also be positioned at the groove 34 such that it does not protrude entirely beyond the edges 33, i.e. beyond the virtual plane connecting the edges 33.
  • appliance ventilation device 1 The operation of the appliance ventilation device 1 described above in structural terms is substantially similar to any fan of the known technology.
  • the household appliance ventilation device 1 achieves important advantages.
  • the household appliance ventilation device 1 avoids clutter and interference from cables exiting the device, since the cable 6 does not exit the device 1 and remains housed therein.
  • the appliance ventilation device 1 increases the convenience of installation of the device 1 within the appliance, since it is possible to install the device 1 and subsequently connect the device 1 itself with ease.
  • the appliance ventilation device 1 allows a household appliance, in particular a washing machine, to be pre-configured in terms of wiring.
  • the device 1 withstands the imposed vibrations optimally, which are especially noticeable in washing machines and similar.
  • each device 1 can be installed and connected to the pre-configured wiring of the household appliance, with ease.
  • the device is also well suited for other industries such as automotive, i.e., for cars such as passenger cars and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP22208780.1A 2021-11-23 2022-11-22 Belüftungsvorrichtung für haushaltsgeräte Pending EP4184066A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202100029555 2021-11-23

Publications (1)

Publication Number Publication Date
EP4184066A1 true EP4184066A1 (de) 2023-05-24

Family

ID=80122081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22208780.1A Pending EP4184066A1 (de) 2021-11-23 2022-11-22 Belüftungsvorrichtung für haushaltsgeräte

Country Status (1)

Country Link
EP (1) EP4184066A1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189327A (en) 1990-08-29 1993-02-23 Matsushita Electric Industrial Co., Ltd. Axial-flow fan motor with modular connector
EP0688088A1 (de) 1994-05-11 1995-12-20 Emerson Electric Co. Elektrische Verbindung von Printplatte und Stromanschlüssen bei bürstenlosen Permanentmagnetmotoren für Kühlaggregate
US20070280840A1 (en) 2006-05-31 2007-12-06 Nidec Corporation Fan
US20080100160A1 (en) 2006-10-31 2008-05-01 Nidec Corporation Fan apparatus
US20140308121A1 (en) 2013-04-10 2014-10-16 Hon Hai Precision Industry Co., Ltd. Fan having power connector
US20160025104A1 (en) 2014-07-28 2016-01-28 Asia Vital Components Co., Ltd. Annular fan wiring structure
US20200232151A1 (en) 2017-10-06 2020-07-23 Eltek S.P.A. Safety device against leaks of liquid for liquid-conducting household appliances
US20210018009A1 (en) 2014-11-14 2021-01-21 Delta Electronics, Inc. Fan module

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189327A (en) 1990-08-29 1993-02-23 Matsushita Electric Industrial Co., Ltd. Axial-flow fan motor with modular connector
EP0688088A1 (de) 1994-05-11 1995-12-20 Emerson Electric Co. Elektrische Verbindung von Printplatte und Stromanschlüssen bei bürstenlosen Permanentmagnetmotoren für Kühlaggregate
US20070280840A1 (en) 2006-05-31 2007-12-06 Nidec Corporation Fan
US20080100160A1 (en) 2006-10-31 2008-05-01 Nidec Corporation Fan apparatus
US20140308121A1 (en) 2013-04-10 2014-10-16 Hon Hai Precision Industry Co., Ltd. Fan having power connector
US20160025104A1 (en) 2014-07-28 2016-01-28 Asia Vital Components Co., Ltd. Annular fan wiring structure
US20210018009A1 (en) 2014-11-14 2021-01-21 Delta Electronics, Inc. Fan module
US20200232151A1 (en) 2017-10-06 2020-07-23 Eltek S.P.A. Safety device against leaks of liquid for liquid-conducting household appliances

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