EP3130860A1 - Climatiseur - Google Patents

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Publication number
EP3130860A1
EP3130860A1 EP14888581.7A EP14888581A EP3130860A1 EP 3130860 A1 EP3130860 A1 EP 3130860A1 EP 14888581 A EP14888581 A EP 14888581A EP 3130860 A1 EP3130860 A1 EP 3130860A1
Authority
EP
European Patent Office
Prior art keywords
air
air duct
duct wall
outlet
case
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.)
Granted
Application number
EP14888581.7A
Other languages
German (de)
English (en)
Other versions
EP3130860B1 (fr
EP3130860A4 (fr
Inventor
Atsushi Kono
Takashi Ikeda
Masahiko Takagi
Makoto Kurihara
Kenyu Tanaka
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 EP3130860A1 publication Critical patent/EP3130860A1/fr
Publication of EP3130860A4 publication Critical patent/EP3130860A4/fr
Application granted granted Critical
Publication of EP3130860B1 publication Critical patent/EP3130860B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24F13/20—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
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F2013/0616—Outlets that have intake openings

Definitions

  • the present invention relates to an air conditioner.
  • an airflow direction flap is arranged at a vicinity of an air outlet, and the airflow direction flap guides a direction of a current of blown-out air.
  • a current of air flowing along a longitudinal end portion of the airflow direction flap is liable to flow weakly, and liable to take the air therein from an inside of a room, thereby easily flowing upward to a ceiling side.
  • the current of the air flowing along the longitudinal end portion of the airflow direction flap may cause smudging of the ceiling.
  • a related-art ceiling-embedded air conditioner is disclosed in, for example, Patent Literature 1.
  • a chord length of a longitudinal end portion of an airflow direction flap is reduced, and a current of blown-out air flowing along the longitudinal end portion of the airflow direction flap is directed downward, thereby preventing smudging of a ceiling.
  • the present invention has been made in order to solve the above-mentioned problem, and has an object to provide an air conditioner capable of reducing smudging caused by a current of air flowing along a longitudinal end portion of an airflow direction flap while preventing short cycling from easily occurring in the current of the air flowing along the longitudinal end portion of the airflow direction flap.
  • an air conditioner including: at least one air inlet and at least one air outlet formed in a lower portion of the air conditioner; a wall portion defining one blowing air duct having the one air outlet as an outlet; an airflow direction flap arranged in the one air outlet; an air sending unit configured to generate a flow of air that is sucked through the air inlet and blown out through the air outlet; and a heat exchanger arranged in a flow passage of the air that is sucked through the air inlet and blown out through the air outlet, the wall portion including an inner air duct wall and an outer air duct wall, in which, in plan view, the outer air duct wall is at a position more distant from the heat exchanger than the inner air duct wall, and in which, on a plane on upstream of the airflow direction flap, a distance between a center portion of the outer air duct wall in a longitudinal direction of the blowing air duct and a center portion
  • the air conditioner of the present invention it is possible to reduce smudging caused by the current of the air flowing along the longitudinal end portion of the airflow direction flap while preventing short cycling from easily occurring in the current of the air flowing along the longitudinal end portion of the airflow direction flap.
  • FIG. 1 is a side view for illustrating the internal structure of an air conditioner according to a first embodiment of the present invention.
  • FIG. 2 is a top view for illustrating an air outlet of the air conditioner according to the first embodiment.
  • FIG. 3 is a view for illustrating a blowing air duct of the air conditioner according to the first embodiment when seen from a direction indicated by the arrows III of FIG. 2 .
  • FIG. 4 is a view for illustrating the blowing air duct of the air conditioner according to the first embodiment when seen from a direction indicated by the arrows IV of FIG. 2 .
  • the air conditioner according to the first embodiment corresponds to an indoor unit of a so-called package air conditioner.
  • FIG. 1 is an illustration of a state in which most part of a case 3 of an air conditioner 1 is embedded on a back side (side opposite to a room) of a ceiling 5 of the room and a lower part of the case 3 faces the inside of the room.
  • the air conditioner according to the present invention has at least one air inlet and at least one air outlet formed in a lower portion thereof. Further, the air conditioner according to the present invention includes a wall portion defining a blowing air duct having one air outlet as an outlet, and an airflow direction flap arranged in one air outlet. As one example, the air conditioner 1 according to the first embodiment has four air inlets 7 and one air outlet 9 formed in a lower portion thereof. Further, the air conditioner 1 according to the first embodiment includes four wall portions 11 and four airflow direction flaps 13. One wall portion 11 defines one blowing air duct 15 having one air outlet 9 as an outlet. One airflow direction flap 13 is arranged in the one air outlet 9.
  • the four air outlets 9, the four wall portions 11, the four airflow direction flaps 13, and the four blowing air ducts 15 are arranged, and each group of the four components has the same configuration. Accordingly, in the following, one of the air outlets 9, one of the wall portions 11, one of the airflow direction flaps 13, and one of the blowing air ducts 15 are described.
  • a centrifugal fan 17 and a heat exchanger 19 are housed in a case 3.
  • the centrifugal fan 17 serves as an air sending unit configured to generate a flow of air that is sucked into the case 3 through the air inlet 7 and blown out to a target space (room) through the air outlet 9.
  • the heat exchanger 19 is arranged in such a flow passage of the air.
  • the case 3 includes a top panel 3a having a rectangular shape in plan view, and four side panels 3b extending downward from four sides of the top panel 3a.
  • the case 3 is such a box body that an upper end surface of a rectangular tube body defined by the four side panels 3b is closed by the top panel 3a.
  • a panel 21 is mounted on the case 3 in a freely removable manner.
  • the panel 21 is a design panel (decorative panel).
  • a panel air inlet 21b of a grille type is formed in the vicinity of a center of the panel 21.
  • a filter 23 is arranged on downstream of (above) the panel air inlet 21b, and is configured to remove dust in the air passing through a grille portion of the panel air inlet 21b.
  • the panel 21 and the panel air inlet 21b each have a rectangular outer edge in plan view.
  • the four panel air outlets 21a are formed in accordance with the structure in which the panel 21 and the panel air inlet 21b each have the outer edge along four sides thereof, and the respective panel air outlets 21a are arranged, except for corner portions, so as to extend along the corresponding sides of the panel 21 and the panel air inlet 21b. Further, the four panel air outlets 21a are positioned so as to surround the panel air inlet 21b.
  • the panel air inlet 21b corresponds to the above-mentioned air inlet 7, and the four panel air outlets 21a correspond to the above-mentioned air outlets 9. Further, the panel air outlets 21a (air outlets 9) and the blowing air ducts 15 extend along the above-mentioned corresponding sides of the panel 21 and the panel air inlet 21b. In plan view, a direction extended from each of the corresponding sides is referred to as a longitudinal direction, and a direction orthogonal to the longitudinal direction is referred to as a transverse direction. As one example, in the panel air outlet 21a (air outlet 9) and the blowing air duct 15 illustrated in FIG. 2 , a horizontal direction of the drawing sheet of FIG. 2 corresponds to the longitudinal direction, and a vertical direction of the drawing sheet of FIG. 2 corresponds to the transverse direction.
  • a fan motor 25 is arranged at a center portion of the inside of the case 3.
  • the fan motor 25 is supported by a lower surface of the top panel 3a of the case 3 (at an inner space side of the case).
  • the centrifugal fan 17 is fixed to a rotation shaft of the fan motor 25, which extends downward.
  • a bellmouth 27 that defines a suction air duct extending from the panel air inlet 21b toward the centrifugal fan 17 is arranged between the centrifugal fan 17 and the filter 23.
  • the centrifugal fan 17 is configured to suck the air into the case 3 through the panel air inlet 21b, and cause the air to flow out to the inside of the room being the target space through the panel air outlet 21a.
  • the heat exchanger 19 is arranged at a radially outer side of the centrifugal fan 17.
  • the heat exchanger 19 is arranged in the flow passage of the air generated in the case 3 by the centrifugal fan 17, and is configured to exchange heat between the air and refrigerant.
  • the heat exchanger 19 includes a plurality of fins arranged at predetermined intervals in a horizontal direction, and heat transfer pipes passing through the fins.
  • the heat transfer pipes are connected to a known outdoor unit (not shown) through a connection pipe so that cooled or heated refrigerant is supplied to the heat exchanger 19.
  • the structures and modes of the centrifugal fan 17, the bellmouth 27, and the heat exchanger 19 are not particularly limited, but known structures and modes are employed in the first embodiment.
  • every blowing air duct 15 is defined by one corresponding wall portion 11.
  • the wall portion 11 includes a portion formed in the case 3, and a portion formed in the panel 21.
  • the above-mentioned panel air outlet 21a is an outlet of the blowing air duct 15 formed in the panel 21, and an outlet of the blowing air duct 15 formed in the case 3 is a case air outlet 31.
  • the case 3 has the case air outlet 31 formed in an interface with the panel 21.
  • a plane illustrated in FIG. 2 is a plane containing the case air outlet 31, and is a plane flush with the line indicated by reference symbol II of FIG. 3 and FIG. 4 .
  • the airflow direction flap 13 is positioned on downstream of the case air outlet 31.
  • the airflow direction flap 13 vertically extends astride the panel air inlet 21b (air inlet 7). Further, a chord length of the airflow direction flap 13 is constant in the longitudinal direction.
  • the air conditioner according to the present invention has at least one panel air outlet and at least one case air outlet.
  • the air conditioner 1 according to the first embodiment has four panel air outlets 21a and four case air outlets 31.
  • the wall portion according to the present invention at least includes an inner air duct wall and an outer air duct wall.
  • one wall portion 11 includes one inner air duct wall 41, one outer air duct wall 43, and two side walls 45.
  • Each of the two side walls 45 extends so as to connect a corresponding end portion of the inner air duct wall 41 and a corresponding end portion of the outer air duct wall 43 to each other.
  • the blowing air duct 15 defined by the inner air duct wall 41, the outer air duct wall 43, and the two side walls 45 has substantially a rectangular shape.
  • the inner air duct wall 41 and the outer air duct wall 43 extend substantially in parallel to each other.
  • the outer air duct wall 43 is more distant from the heat exchanger 19 than the inner air duct wall 41.
  • a distance (transverse interval) D1 between a center portion 43a of the outer air duct wall 43 in the longitudinal direction of the blowing air duct 15 and a center portion 41a of the inner air duct wall 41 in the longitudinal direction of the blowing air duct 15 is smaller than a distance (transverse interval) D2 between each side portion 43b of the longitudinal center portion of the outer air duct wall 43 and each side portion 41b of the longitudinal center portion of the inner air duct wall 41.
  • the protruding portion 51 is formed on the longitudinal center portion 43a of the outer air duct wall 43.
  • the protrudingportion 51 protrudes toward the inner air duct wall 41, and is positioned on the upstream of the airflow direction flap 13. Further, the protruding portion 51 is present on a portion of the case 3 defining the case air outlet 31.
  • the distance (transverse interval) D1 between the protruding portion 51 of the outer air duct wall 43 and the inner air duct wall 41 is smaller than the distance (transverse interval) D2 between each side portion of the protruding portion 51 of the outer air duct wall 43 and the inner air duct wall 41.
  • the distance D1 between the center portion of the outer air duct wall in the longitudinal direction of the blowing air duct and the center portion of the inner air duct wall in the longitudinal direction of the blowing air duct is smaller than the distance (transverse interval) D2 between each side portion of the longitudinal center portion of the outer air duct wall and each side portion of the longitudinal center portion of the inner air duct wall. Accordingly, a longitudinal center portion of the blowing air duct is narrower than each side portion of the longitudinal center portion of the blowing air duct. This configuration increases a current of air flowing out of the heat exchanger and then flowing into each side portion of the longitudinal center portion of the blowing air duct, and increases air velocity at a longitudinal endportion of the air outlet.
  • the prevention of smudging depends on the configuration of the wall portion on the upstream of the airflow direction flap, but no requirement is imposed on use of the airflow direction flap that includes a longitudinal end portion having a chord length smaller than a chord length of a longitudinal center portion thereof. Accordingly, while preventing short cycling from easily occurring in the current of the air flowing along the longitudinal end portion of the airflow direction flap, it is possible to reduce smudging caused by the current of the air flowing along the longitudinal end portion of the airflow direction flap.
  • the current of the air cannot flow along the airflow direction flap so that the blown-out air is liable to be directed downward of an outlet angle of the airflow direction flap.
  • the protruding portion 51 is formed on the longitudinal center portion 43a of the outer air duct wall 43.
  • the current of the air is caused to flow into the blowing air duct from directly above the airflow direction flap, and air velocity on a surface of the airflow direction flap is increased, thereby being capable of easily obtaining an angle of blown-out air approximate to a vane outlet angle.
  • FIG. 5 is a view for illustrating the second embodiment in the same manner as that of FIG. 2
  • FIG. 6 is a view for illustrating the second embodiment in the same manner as that of FIG. 4
  • FIG. 7 is a graph for showing a relationship according to the second embodiment between a length ratio of L2/L1 and an angle of a current of blown-out air flowing out along the longitudinal center portion of the airflow direction flap.
  • FIG. 8 is a graph for showing a comparison between the related art and the second embodiment regarding the angle of the current of the blown-out air at a longitudinal position of the airflow direction flap.
  • a longitudinal length L2 of a protruding portion 151 of the outer air duct wall 43 is equal to or larger than one third of a longitudinal length L1 of the outer air duct wall 43 itself.
  • the protruding portion 151 has the same configuration as that of the above-mentioned protruding portion 51 except for the longitudinal length.
  • the current of the air flowing along the longitudinal end portion of the air outlet flows more weakly than the current of the air flowing along the longitudinal center portion of the air outlet. Accordingly, as indicated by the dotted arrows F1 of FIG. 6 , the current of the air flowing along the longitudinal end portion of the air outlet flows along the outer air duct wall of the panel 21, thereby being capable of obtaining an angle ⁇ 1 of blown-out air flowing along the outlet angle of the airflow direction flap 13 (assuming that an angle of horizontal blowing parallel to the ceiling 5 is set zero).
  • the angle ⁇ 1 of a current of the blown-out air flowing along the longitudinal endportion of the air outlet is referredto as a non-smudging critical angle (minimum angle causing no smudging (angle most approximate to an angle enabling horizontal blowing without causing smudging)).
  • the current of the air flowing along the longitudinal center portion of the air outlet flows strongly. Accordingly, as indicated by the dotted arrows F2 of FIG. 6 , the current of the air flowing along the longitudinal center portion of the air outlet flows along the outer air duct wall of the case, but cannot flow along the airflow direction flap, with the result that the blown-out air is liable to be directed downward of the outlet angle of the airflow direction flap, thereby forming an angle 2 of blown-out air larger than the angle ⁇ 1 of the blown-out air.
  • the second embodiment as shown in FIG.
  • the protruding portion 151 is formed to satisfy a condition that the length ratio of L2/L1 is equal to or larger than one third.
  • the current of the blown-out air flowing along the longitudinal center portion of the air outlet forms the angle ⁇ 1 along the outlet angle of the airflow direction flap 13.
  • FIG. 8 over an entire longitudinal region of the air outlet (0 ⁇ x ⁇ L1, that is, 0 ⁇ x/L1 ⁇ 1), it is possible to obtain the constant angle ⁇ 1 of the blown-out air along the outlet angle of the airflow direction flap 13. Consequently, the angle of the blown-out air can be uniformized to the non-smudging critical angle over the entire longitudinal region of the air outlet.
  • FIG. 9 is a view for illustrating the third embodiment in the same manner as that of FIG. 3 .
  • a protruding height of a protruding portion 251 increases toward downstream of the blowing air duct.
  • an air duct width of the blowing air duct in the transverse direction gradually decreases.
  • FIG. 10 is a view for illustrating a fourth embodiment of the present invention in the same manner as that of FIG. 2 .
  • the air conditioner according to the third embodiment has the same configuration as that of any one of the above-mentioned first to third embodiments except for parts to be described or limited later.
  • a longitudinal length of a protruding portion 351 decreases in a stepped manner toward a distal end of the protruding portion 251.
  • FIG. 11 is a view for illustrating a fifth embodiment of the present invention in the same manner as that of FIG. 2 .
  • the air conditioner according to the fifth embodiment has the same configuration as that of any one of the above-mentioned first to third embodiments except for parts to be described or limited later.
  • a longitudinal length of a protruding portion 451 decreases in a continuous manner toward a distal end of the protruding portion 351.
  • FIG. 12 is a view for illustrating a sixth embodiment of the present invention in the same manner as that of FIG. 2 .
  • the air conditioner according to the sixth embodiment has the same configuration as that of any one of the above-mentioned first to fifth embodiments except for parts to be described or limited later.
  • a protruding portion 551 is prepared separately from the outer air duct wall, and is mounted onto the outer air duct wall.
  • FIG. 12 is an illustration of an example when the protruding portion according to the first embodiment is prepared as a separate member, but the sixth embodiment is not limited thereto.
  • the sixth embodiment may be carried out as a mode of preparing the protruding portion according to each of the second to fifth embodiments as a separate member.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Duct Arrangements (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Air-Flow Control Members (AREA)
EP14888581.7A 2014-04-09 2014-04-09 Climatiseur Active EP3130860B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/060294 WO2015155855A1 (fr) 2014-04-09 2014-04-09 Climatiseur

Publications (3)

Publication Number Publication Date
EP3130860A1 true EP3130860A1 (fr) 2017-02-15
EP3130860A4 EP3130860A4 (fr) 2018-01-03
EP3130860B1 EP3130860B1 (fr) 2022-10-19

Family

ID=54287458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14888581.7A Active EP3130860B1 (fr) 2014-04-09 2014-04-09 Climatiseur

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Country Link
EP (1) EP3130860B1 (fr)
JP (1) JP5930352B2 (fr)
WO (1) WO2015155855A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10380676B2 (en) * 2015-10-09 2019-08-13 Rakuten, Inc. Information processing system, information processing device, information processing method and program
WO2019146036A1 (fr) * 2018-01-25 2019-08-01 三菱電機株式会社 Unité intérieure pour climatiseur
KR20220007352A (ko) * 2020-07-10 2022-01-18 엘지전자 주식회사 공기 청정기

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3240854B2 (ja) * 1994-09-26 2001-12-25 三菱電機株式会社 空気調和機の吹出口
JP2001254998A (ja) * 2001-02-27 2001-09-21 Mitsubishi Electric Corp 空気調和機の吹出口
KR100437033B1 (ko) * 2001-12-29 2004-06-23 주식회사 엘지이아이 공기조화기의 풍향조절장치
JP2007333356A (ja) * 2006-06-19 2007-12-27 Mitsubishi Heavy Ind Ltd 天井埋込型室内機ユニットの吹出構造
KR101140716B1 (ko) * 2006-12-18 2012-05-03 삼성전자주식회사 천장형 공기조화기
CN101802509B (zh) * 2007-10-25 2013-06-12 东芝开利株式会社 天花板嵌入型空调机
JP4827899B2 (ja) * 2008-08-07 2011-11-30 三菱電機株式会社 天井埋込形空気調和機
JP5349147B2 (ja) * 2009-06-08 2013-11-20 三菱電機株式会社 空気調和装置
WO2011064999A1 (fr) * 2009-11-25 2011-06-03 ダイキン工業株式会社 Dispositif de conditionnement, panneau à pollen et boîtier
JP5247784B2 (ja) * 2010-10-04 2013-07-24 三菱電機株式会社 空気調和機
JP5383628B2 (ja) * 2010-11-02 2014-01-08 三菱電機株式会社 空気調和機
WO2012169110A1 (fr) * 2011-06-09 2012-12-13 三菱電機株式会社 Unité intérieure pour climatiseur

Also Published As

Publication number Publication date
EP3130860B1 (fr) 2022-10-19
WO2015155855A1 (fr) 2015-10-15
JP5930352B2 (ja) 2016-06-08
JPWO2015155855A1 (ja) 2017-04-13
EP3130860A4 (fr) 2018-01-03

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