EP4119863A1 - Unité intérieure et dispositif de climatisation - Google Patents

Unité intérieure et dispositif de climatisation Download PDF

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Publication number
EP4119863A1
EP4119863A1 EP20923935.9A EP20923935A EP4119863A1 EP 4119863 A1 EP4119863 A1 EP 4119863A1 EP 20923935 A EP20923935 A EP 20923935A EP 4119863 A1 EP4119863 A1 EP 4119863A1
Authority
EP
European Patent Office
Prior art keywords
centrifugal fan
plate
indoor unit
heat exchanger
apex
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
EP20923935.9A
Other languages
German (de)
English (en)
Other versions
EP4119863A4 (fr
Inventor
Atsushi Kono
Takuya Teramoto
Makoto Kurihara
Kazuki ISOMURA
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP4119863A1 publication Critical patent/EP4119863A1/fr
Publication of EP4119863A4 publication Critical patent/EP4119863A4/fr
Pending legal-status Critical Current

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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
    • 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
    • F24F1/0022—Centrifugal or radial fans
    • 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
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • 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
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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

Definitions

  • the apex of the protruding portion of the partition plate is located closer to the first end than to the second end. Therefore, the pressure loss of airflow passing in the heat exchanger on the downstream side in the rotational direction of the centrifugal fan can be suppressed. Moreover, passing of airflow into the heat exchanger on the upstream side in the rotational direction of the centrifugal fan can be promoted.
  • the angle formed between heat exchanger 4a on the upstream side in rotational direction D1 of centrifugal fan 3 and first plate portion 51a of protruding portion 51 of partition plate 5 is an acute angle. Namely, the angle formed between heat exchanger 4a on the upstream side in rotational direction D1 of centrifugal fan 3 and first plate portion 51a of protruding portion 51 of partition plate 5 is smaller than 90 degrees. Therefore, passing of airflow AF into heat exchanger 4a on the upstream side in rotational direction D1 of centrifugal fan 3 is promoted.
  • a virtual line connecting rotational axis 3a of centrifugal fan 3 and apex TP is defined as a first virtual line A1
  • a virtual line connecting apex TP and first end 41 is defined as a second virtual line A2
  • a virtual line connecting apex TP and second end 42 is defined as a third virtual line A3.
  • a first angle ⁇ a formed between first virtual line A1 and second virtual line A2 is larger than a second angle ⁇ b formed between first virtual line A1 and third virtual line A3.
  • Second virtual line A2 is located along the inner surface of first plate portion 51a.
  • Third virtual line A3 is located along the inner surface of second plate portion 51b.
  • the distance (first distance) n between centrifugal fan 3 and apex TP is shorter than the distance (second distance) m between centrifugal fan 3 and heat exchanger 4.
  • Distance n between centrifugal fan 3 and apex TP is the shortest distance between centrifugal fan 3 and apex TP when centrifugal fan 3 is seen along rotational axis 3a.
  • Distance m between centrifugal fan 3 and heat exchanger 4 is the shortest distance between centrifugal fan 3 and apex TP when centrifugal fan 3 is seen along rotational axis 3a.
  • FIG. 13 is a bottom view showing, from below, the configuration of indoor unit 1 with its panel 22 removed, according to Embodiment 8.
  • Fig. 14 is a perspective view showing, from below, the configuration of indoor unit 1 with its panel 22 removed, according to Embodiment 7.
  • the distance between centrifugal fan 3 and apex TP of main plate-side portion 51b1 is longer than the distance between centrifugal fan 3 and side plate-side portion 51b2.
  • the wind speed of airflow blown out from centrifugal fan 3 is larger on the main plate 31 side than on the side plate 32 side. Since the distance between centrifugal fan 3 and apex TP of main plate-side portion 51b1 is longer than the distance between centrifugal fan 3 and apex TP of side plate-side portion 51b2, a pressure variation on the flat surface of second plate portion 51b of protruding portion 51 of partition plate 5 can be suppressed. Accordingly, noise can be reduced.
  • a slit SL is provided in partition plate 5.
  • Slit SL extends through partition plate 5 in the thickness direction.
  • a plurality of slits SL are provided.
  • Slits SL are provided in each of first plate portion 51a and second plate portion 51b of protruding portion 51 of partition plate 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
EP20923935.9A 2020-03-13 2020-03-13 Unité intérieure et dispositif de climatisation Pending EP4119863A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/011236 WO2021181695A1 (fr) 2020-03-13 2020-03-13 Unité intérieure et dispositif de climatisation

Publications (2)

Publication Number Publication Date
EP4119863A1 true EP4119863A1 (fr) 2023-01-18
EP4119863A4 EP4119863A4 (fr) 2023-04-26

Family

ID=77670956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20923935.9A Pending EP4119863A4 (fr) 2020-03-13 2020-03-13 Unité intérieure et dispositif de climatisation

Country Status (3)

Country Link
EP (1) EP4119863A4 (fr)
JP (1) JP7378574B2 (fr)
WO (1) WO2021181695A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0949640A (ja) 1995-08-09 1997-02-18 Sanyo Electric Co Ltd 空気調和機
JP3606968B2 (ja) * 1995-11-08 2005-01-05 三菱電機株式会社 空気調和機
JP2956675B2 (ja) * 1998-01-16 1999-10-04 ダイキン工業株式会社 空気調和機
ES2409035T3 (es) * 2002-08-30 2013-06-24 Toshiba Carrier Corporation Aparato acondicionador de aire tipo empotrable en techo
JP2005241069A (ja) 2004-02-25 2005-09-08 Mitsubishi Heavy Ind Ltd 空気調和機
JP2012220163A (ja) * 2011-04-13 2012-11-12 Mitsubishi Heavy Ind Ltd 空気調和機
JP2015081692A (ja) * 2013-10-21 2015-04-27 日立アプライアンス株式会社 空気調和機の室内機
EP3598020B1 (fr) * 2017-03-15 2021-12-22 Toshiba Carrier Corporation Unité intérieure pour climatiseur

Also Published As

Publication number Publication date
JPWO2021181695A1 (fr) 2021-09-16
EP4119863A4 (fr) 2023-04-26
JP7378574B2 (ja) 2023-11-13
WO2021181695A1 (fr) 2021-09-16

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