EP4530476A3 - Air conditioner - Google Patents

Air conditioner Download PDF

Info

Publication number
EP4530476A3
EP4530476A3 EP25152288.4A EP25152288A EP4530476A3 EP 4530476 A3 EP4530476 A3 EP 4530476A3 EP 25152288 A EP25152288 A EP 25152288A EP 4530476 A3 EP4530476 A3 EP 4530476A3
Authority
EP
European Patent Office
Prior art keywords
end protrusion
flow fan
cross flow
arcuate portion
air conditioner
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
EP25152288.4A
Other languages
German (de)
French (fr)
Other versions
EP4530476A2 (en
Inventor
Masanobu Wada
Takahiro Oshiro
Takeshi Nagata
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.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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 Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of EP4530476A2 publication Critical patent/EP4530476A2/en
Publication of EP4530476A3 publication Critical patent/EP4530476A3/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F24F1/0025—Cross-flow or tangential 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—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
    • 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
    • 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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

An air conditioner according to the present disclosure includes cross flow fan (106), rear guider (105), and rear heat exchanger (107b). Rear guider (105) includes upper end protrusion (105b) having arcuate portion (105c), and distal end point B positioned on arcuate portion (105c) is positioned at a side of cross flow fan (106) with respect to center line W of upper end protrusion (105b). When a diameter of arcuate portion (105c) is defined as D and a shortest distance between a surface of upper end protrusion (105b) on the side of cross flow fan (106) and a surface of upper end protrusion (105b) on a side of rear heat exchanger (107b) is defined as T, D/T < 0.6 is satisfied.
EP25152288.4A 2022-03-22 2023-03-13 Air conditioner Pending EP4530476A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022044828 2022-03-22
PCT/JP2023/009491 WO2023182025A1 (en) 2022-03-22 2023-03-13 Air conditioner
EP23774622.7A EP4498014A4 (en) 2022-03-22 2023-03-13 Air conditioner

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP23774622.7A Division EP4498014A4 (en) 2022-03-22 2023-03-13 Air conditioner
EP23774622.7A Division-Into EP4498014A4 (en) 2022-03-22 2023-03-13 Air conditioner

Publications (2)

Publication Number Publication Date
EP4530476A2 EP4530476A2 (en) 2025-04-02
EP4530476A3 true EP4530476A3 (en) 2025-06-25

Family

ID=88101407

Family Applications (2)

Application Number Title Priority Date Filing Date
EP25152288.4A Pending EP4530476A3 (en) 2022-03-22 2023-03-13 Air conditioner
EP23774622.7A Pending EP4498014A4 (en) 2022-03-22 2023-03-13 Air conditioner

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP23774622.7A Pending EP4498014A4 (en) 2022-03-22 2023-03-13 Air conditioner

Country Status (4)

Country Link
EP (2) EP4530476A3 (en)
JP (1) JPWO2023182025A1 (en)
CN (1) CN118475798A (en)
WO (1) WO2023182025A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001090689A (en) * 1999-09-24 2001-04-03 Daikin Ind Ltd Fan mechanism and air conditioner indoor unit equipped with fan mechanism
CN113439187A (en) * 2019-06-17 2021-09-24 松下知识产权经营株式会社 Air conditioner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3326576B2 (en) * 1994-08-25 2002-09-24 松下電器産業株式会社 Indoor unit of air conditioner
JP4510172B2 (en) * 1999-04-05 2010-07-21 シャープ株式会社 Cross flow fan
JP2001124362A (en) 1999-10-27 2001-05-11 Matsushita Electric Ind Co Ltd Cross-flow blower
JP2014020243A (en) * 2012-07-17 2014-02-03 Panasonic Corp Cross flow air blowing device
JP5477441B2 (en) * 2012-09-28 2014-04-23 ダイキン工業株式会社 Air conditioner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001090689A (en) * 1999-09-24 2001-04-03 Daikin Ind Ltd Fan mechanism and air conditioner indoor unit equipped with fan mechanism
CN113439187A (en) * 2019-06-17 2021-09-24 松下知识产权经营株式会社 Air conditioner

Also Published As

Publication number Publication date
JPWO2023182025A1 (en) 2023-09-28
WO2023182025A1 (en) 2023-09-28
EP4498014A1 (en) 2025-01-29
EP4530476A2 (en) 2025-04-02
CN118475798A (en) 2024-08-09
EP4498014A4 (en) 2025-06-25

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