EP4379284A1 - Ceiling-suspended indoor unit - Google Patents

Ceiling-suspended indoor unit Download PDF

Info

Publication number
EP4379284A1
EP4379284A1 EP22880924.0A EP22880924A EP4379284A1 EP 4379284 A1 EP4379284 A1 EP 4379284A1 EP 22880924 A EP22880924 A EP 22880924A EP 4379284 A1 EP4379284 A1 EP 4379284A1
Authority
EP
European Patent Office
Prior art keywords
opening
housing
indoor unit
drain
heat exchange
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
EP22880924.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Masakazu Ito
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 Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Thermal Systems 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 Mitsubishi Heavy Industries Thermal Systems Ltd filed Critical Mitsubishi Heavy Industries Thermal Systems Ltd
Publication of EP4379284A1 publication Critical patent/EP4379284A1/en
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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • 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
    • 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
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

Definitions

  • the present disclosure relates to a ceiling-suspended indoor unit.
  • a drain outlet for discharging drain water accumulated in a drain pan is provided.
  • the present disclosure has been made in view of such circumstances, and an object of the present disclosure is to provide a ceiling-suspended indoor unit capable of visually confirming dirt or clogging in the vicinity of a drain socket without disassembling the housing, a drain pan, or the like, and capable of cleaning the vicinity of the drain socket.
  • the ceiling-suspended indoor unit of the present disclosure adopts the following means.
  • a ceiling-suspended indoor unit including: a housing that internally defines a fan chamber in which a fan is disposed and a heat exchange chamber in which a heat exchanger is disposed; a drain pan that is installed below the heat exchanger in the heat exchange chamber; and a drain socket through which the heat exchange chamber and the fan chamber communicate with each other and drain water accumulated in the drain pan is discharged, in which an opening that communicates with the heat exchange chamber and allows the drain socket to be viewed from an outside of the housing is formed on a side surface of the housing.
  • the present disclosure it is possible to visually confirming the dirt or clogging in the vicinity of the drain socket without disassembling the housing, the drain pan, or the like, and it is possible to make the vicinity of the drain socket cleanable.
  • an indoor unit 1 is configured such that a side cover 51 is installed on a side surface (side panel 11) of a housing 10, a grill 52 is installed at a suction port 22 formed at a bottom portion of the housing 10, and a louver 53 is installed at a discharge port 23 formed at a front surface of the housing 10.
  • a fan chamber 18 and a heat exchange chamber 19 are defined inside the housing 10.
  • blower fans (fans) 41 are installed in the fan chamber 18 in a width direction (a left-right direction in the drawing) of the indoor unit 1.
  • the blower fan 41 is a device that sucks the air in the chamber from the suction port 22 and blows the air toward the heat exchanger 42.
  • the blower fan 41 is, for example, a sirocco fan.
  • a heat exchanger 42 that extends in the width direction of the indoor unit 1 is installed in the heat exchange chamber 19.
  • the heat exchanger 42 is a device that performs heat exchange between air sent from the blower fan 41 and a refrigerant.
  • the fan chamber 18 and the heat exchange chamber 19 are partitioned by a partition plate 45 except for the blowing portion of the blower fan 41.
  • the partition plate 45 extends in the width direction of the indoor unit 1 and is erected in a height direction.
  • a drain pan 43 is installed below the heat exchanger 42 in the heat exchange chamber 19.
  • the drain pan 43 is a tray for receiving drain water (condensed water) adhering to the heat exchanger 42.
  • the drain pan 43 is provided with an inclined surface that is configured to be formed such that the drain water dropped from the heat exchanger 42 is collected at a predetermined location.
  • a drain socket 44 is provided at a location where the drain water is collected. In the present embodiment, the drain socket 44 is provided at a position in the vicinity of the side panel 11.
  • the drain socket 44 is an opening through which the heat exchange chamber 19 and the fan chamber 18 communicate each other, and is configured such that the drain water on the drain pan 43 is naturally drained from the heat exchange chamber 19 to the fan chamber 18.
  • a pipe (not shown) is connected to the drain socket 44 in the fan chamber 18, and the drain water guided to the fan chamber 18 via the drain socket 44 is naturally discharged to the outside of the indoor unit 1.
  • an opening 21 is formed in a side panel 11 of the housing 10.
  • the opening 21 is an opening that communicates with the heat exchange chamber 19 above the drain pan 43, and is formed at a position where the drain socket 44 can be viewed from the outside of the housing 10 (the outside of the indoor unit 1 in a state in which the side cover 51 is removed).
  • the worker can visually confirm the dirt or clogging in the vicinity of the drain socket 44 by visually confirming the heat exchange chamber 19 from the opening 21 without disassembling the housing 10, the drain pan 43, or the like.
  • the worker can clean the dirt or clogging through the opening 21.
  • the opening 21 is formed closer to the fan chamber 18 side than the heat exchanger 42 in the heat exchange chamber 19. In addition, it is more preferable that the opening 21 is formed at a position where there is no obstacle (another component or the like) between the opening 21 and the drain socket 44. In addition, it is preferable that the opening 21 is formed at a position that does not interfere with a hanging bracket 55 or a bracket 56 that fixes the hanging bracket 55 to the housing 10.
  • the opening 21 is set to have, for example, a quadrangular shape having one side of about 70 mm to 100 mm.
  • the opening 21 is preferably set to have a shape that does not interfere with the hanging bracket 55 or the bracket 56 that fixes the hanging bracket 55 to the housing 10.
  • the indoor unit 1 includes a lid member 30 for closing the opening 21.
  • the lid member 30 has a plate member (plate-shaped portion) 31 and an insulation (fitting portion) 32.
  • the plate member 31 is a dimensioned metal plate portion that can cover the opening 21, and abuts on and overlaps the side panel 11 around the opening 21. Holes 31a into which the screws 57 are inserted are formed at two positions on the left and right of the plate member 31.
  • the insulation 32 is a portion fitted to an inner side of the opening 21 and is provided on a surface of the plate member 31.
  • the insulation 32 includes a heat insulating portion 32a and a wind shielding portion 32b.
  • the heat insulating portion 32a is a portion provided in a central region of the plate member 31 and exhibits a heat insulating function.
  • the heat insulating portion 32a is made of, for example, foamed polyethylene.
  • a thickness dimension of the heat insulating portion 32a is substantially the same as a thickness dimension of the side panel 11.
  • the wind shielding portion 32b is a portion provided to surround the entire periphery of the heat insulating portion 32a, and abuts on the stepped portion 21a to exhibit a wind shielding function between the opening 21 and the wind shielding portion 32b.
  • the wind shielding portion 32b is made of foamed ethylene or propylene rubber.
  • a thickness dimension of the wind shielding portion 32b is smaller than a thickness dimension of the side panel 11, and a stepped portion is formed between the wind shielding portion 32b and the heat insulating portion 32a.
  • the lid member 30 is fastened to the side panel 11 by two screws 57 inserted into the holes 31a of the plate member 31.
  • the opening 21 can be closed by the lid member 30 in a state in which the airtightness is maintained.
  • the wind shielding portion 32b of the insulation 32 can be abutted on the stepped portion 21a to exhibit the wind shielding function of the insulation 32.
  • the shapes of the plate member 31 and the insulation 32 of the lid member 30 are point-symmetrical when being viewed from the side.
  • the point-symmetrical shape include a square shape, a circular shape, and the like, in addition to the quadrangular shape described above. Accordingly, when the housing 10 is viewed from the side, the lid member 30 can be attached to the opening 21 while being positioned at any position where the lid member 30 is rotated at a predetermined angle.
  • the lid member 30 can be attached to the opening 21 while being positioned at any position where the lid member 30 is rotated by 90° when the housing 10 is viewed from the side.
  • the shape of the opening 21 is also point-symmetrical corresponding to the shape of the insulation 32.
  • the opening 21, the lid member 30, and the drain socket 44 described above may be provided on both side panels 11 of the indoor unit 1.
  • the drain socket 44 can be visually confirmed from the opening 21 formed on the other side panel 11.
  • an openable and closable annular clip 33 may be provided on the surface of the plate member 31 (a surface opposite to a surface on which the insulation 32 is provided). As a result, the worker can hold the clip 33, and thus the lid member 30 can be easily removed. In addition, the wiring lines can also be hung on the clip 33.
  • the present embodiment has the following effects.
  • the side panel 11 of the housing 10 is provided with the opening 21 that communicates with the heat exchange chamber 19 and allows the drain socket 44 to be viewed from the outside of the housing 10, the worker can visually confirm the dirt or clogging in the vicinity of the drain socket 44 on the drain pan 43 without disassembling the housing 10, the drain pan 43, and the like. In addition, the worker can clean the dirt or clogging through the opening 21.
  • the drain socket 44 can be directly visually confirmed from the opening 21.
  • the lid member 30 includes the plate member 31 that abuts on the side panel 11 of the housing 10 around the opening 21 and the insulation 32 that is fitted to the inner side of the opening 21, the opening 21 can be closed by maintaining the airtightness with the lid member 30.
  • the lid member 30 can be attached to the opening 21 while being positioned at any position where the lid member 30 is rotated by 90° when the housing 10 is viewed from the side.
  • the ceiling-suspended indoor unit (1) includes a housing (10) that internally defines a fan chamber (18) in which a fan (41) is disposed and a heat exchange chamber (19) in which a heat exchanger (42) is disposed; a drain pan (43) that is installed below the heat exchanger in the heat exchange chamber; and a drain socket (44) through which the heat exchange chamber and the fan chamber communicate with each other and drain water accumulated in the drain pan is discharged, in which an opening (21) that communicates with the heat exchange chamber and allows the drain socket to be viewed from an outside of the housing is formed on a side surface (11) of the housing.
  • the opening that is capable of communicating with the heat exchange chamber and allowing the drain socket to be viewed from the outside of the housing is formed on the side surface of the housing, the worker can visually confirm the dirt or clogging in the vicinity of the drain socket on the drain pan without disassembling the housing, the drain pan, or the like. In addition, the worker can clean the dirt or clogging through the opening.
  • the opening communicates with the heat exchange chamber on a fan chamber side with respect to the heat exchanger.
  • the drain socket can be directly visually confirmed from the opening.
  • the opening is formed on both side surfaces of the housing.
  • the drain socket can be visually confirmed from the opening formed on the other side surface.
  • the ceiling-suspended indoor unit further includes a lid member (30) that closes the opening, in which the lid member has a plate-shaped portion (31) that abuts on the side surface of the housing around the opening and a fitting portion (32) that is fitted to an inner side of the opening.
  • the ceiling-suspended indoor unit since the ceiling-suspended indoor unit includes a lid member that closes the opening, and the lid member has a plate-shaped portion that abuts on the side surface of the housing around the opening and a fitting portion that is fitted to an inner side of the opening, the opening can be closed by maintaining the airtightness with the lid member.
  • a shape of the opening and a shape of the lid member are point-symmetrical when the housing is viewed from the side.
  • the lid member can be attached to the opening while being positioned at any position where the lid member is rotated at a predetermined angle when the housing is viewed from the side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
EP22880924.0A 2021-10-11 2022-10-06 Ceiling-suspended indoor unit Pending EP4379284A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021166575A JP2023057205A (ja) 2021-10-11 2021-10-11 天吊形室内機
PCT/JP2022/037523 WO2023063229A1 (ja) 2021-10-11 2022-10-06 天吊形室内機

Publications (1)

Publication Number Publication Date
EP4379284A1 true EP4379284A1 (en) 2024-06-05

Family

ID=85987719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22880924.0A Pending EP4379284A1 (en) 2021-10-11 2022-10-06 Ceiling-suspended indoor unit

Country Status (4)

Country Link
EP (1) EP4379284A1 (ja)
JP (1) JP2023057205A (ja)
CN (1) CN117716183A (ja)
WO (1) WO2023063229A1 (ja)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56105730U (ja) * 1980-01-14 1981-08-18
JPH0372229U (ja) * 1989-11-14 1991-07-22
JPH06193904A (ja) * 1992-12-25 1994-07-15 Sanyo Electric Co Ltd 空気調和機
JP5262398B2 (ja) * 2008-07-28 2013-08-14 ダイキン工業株式会社 ドレン排水方法、空気調和装置および空気調和システム、ドレンソケット
JP6145865B2 (ja) 2013-03-07 2017-06-14 パナソニックＩｐマネジメント株式会社 天吊型空気調和装置
JP6967483B2 (ja) * 2018-03-30 2021-11-17 三菱重工サーマルシステムズ株式会社 空気調和機及び室内機

Also Published As

Publication number Publication date
WO2023063229A1 (ja) 2023-04-20
JP2023057205A (ja) 2023-04-21
CN117716183A (zh) 2024-03-15

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