EP2420753A1 - Klimaanlage - Google Patents

Klimaanlage Download PDF

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Publication number
EP2420753A1
EP2420753A1 EP10764477A EP10764477A EP2420753A1 EP 2420753 A1 EP2420753 A1 EP 2420753A1 EP 10764477 A EP10764477 A EP 10764477A EP 10764477 A EP10764477 A EP 10764477A EP 2420753 A1 EP2420753 A1 EP 2420753A1
Authority
EP
European Patent Office
Prior art keywords
airflow
air outlet
heat exchanger
air
wall portion
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.)
Withdrawn
Application number
EP10764477A
Other languages
English (en)
French (fr)
Other versions
EP2420753A4 (de
Inventor
Kenji Terano
Takayoshi Yamamoto
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries 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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP2420753A1 publication Critical patent/EP2420753A1/de
Publication of EP2420753A4 publication Critical patent/EP2420753A4/de
Withdrawn legal-status Critical Current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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • 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
    • F24F1/0043—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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F24F2013/088—Air-flow straightener

Definitions

  • the present invention relates to an air conditioner discharging conditioned air into a room. More particularly, the present invention relates to an air conditioner that can discharge from an air outlet an airflow widened in a longitudinal direction of the air outlet.
  • Patent Literature 1 discloses an air conditioner including a ceiling-suspended indoor unit.
  • the indoor unit of this air conditioner includes: a body casing including an air outlet on a front side thereof; a heat exchanger accommodated in a front portion of the body casing; and an air blowing fan accommodated in a rear portion of the body casing.
  • the air blowing fan suctions air from a lower side of the body casing and blows forward the suctioned air.
  • the heat exchanger performs heat exchange by letting therethrough the airflow blown forward by the air blowing fan.
  • the air heated or cooled through the heat exchange process is discharged from the air outlet into the room whereby room temperature and the like are conditioned.
  • FIG.7 is a sectional side view showing in enlarged dimension the vicinity of the air outlet of the indoor unit of the prior-art air conditioner (Patent Literature 1).
  • the airflow blade includes a vertical blade 135 for transverse adjustment of the airflow direction and a horizontal blade 136 disposed forwardly of the vertical blade 135 and making vertical adjustment of the airflow direction.
  • the horizontal blade 136 is in a level position (indicated by a chain double-dashed line in the figure) thereby directing a cool airflow forward.
  • the horizontal blade is in a downward position (indicated by a solid line in the figure) thereby directing a warm airflow forward and obliquely downward.
  • the horizontal blade promotes air convection in the room by vertically adjusting the airflow direction according to its operation mode for cooling or heating.
  • the air conditioner can achieve effective air conditioning.
  • the vertical blade 135 delivers a wide airflow into the room particularly by adjustably directing the airflow outward in the transverse direction. The vertical blade contributes to effective air conditioning of the entire room.
  • Patent Literature 1 has the following problem.
  • a rear end 136a of the horizontal blade 136 is positioned higher than the vertical blade 135, as shown in FIG.7 .
  • the present invention has an object to provide an air conditioner that can discharge from its air outlet an airflow widened outward in the longitudinal direction of the air outlet and can obviate uneven air conditioning of the room.
  • An air conditioner of the present invention comprises: a heat exchanger; an air blowing device for generating an airflow passing through the heat exchanger; a body casing accommodating the heat exchanger and the air blowing device and including an elongated air outlet for discharging the airflow having passed through the heat exchanger; and an airflow shield member provided at a longitudinal end portion of the air outlet, the airflow shield member covering the heat exchanger on the air outlet side and thereby diverting the airflow having passed through the heat exchanger inwardly in the longitudinal direction before guiding the airflow toward the end portion of the air outlet.
  • the airflow generated by the air blowing device passes through the heat exchanger and then collides against the airflow shield member at the longitudinal end portion of the air outlet so as to be diverted longitudinally inwardly. Thereafter, the airflow passes the airflow shield member and blows toward the air outlet. Then a low pressure region which is substantially in no-airflow state is formed in front of the shield member, so that the air having passed the airflow shield member and flowing toward the air outlet is directed outward in the longitudinal direction of the air outlet as drawn into the low pressure region.
  • This drawing action generates an airflow spread longitudinally outward from the air outlet, thereby the uneven air conditioning of the room can be obviated.
  • the air conditioner according to the present invention can discharge from the air outlet the airflow widened outward in the longitudinal direction of the air outlet, thus obviating the uneven air conditioning of the room.
  • FIG.1 is a front view showing an indoor unit 10 of an air conditioner according to the embodiment of the present invention.
  • FIG.2 is a schematic sectional view of the indoor unit 10 shown in FIG.1 .
  • FIG.3 is a schematic plan view showing an internal construction of the indoor unit shown in FIG.1 .
  • the indoor unit 10 is of a ceiling-suspended type and includes a body casing 11 formed in a box shape elongated in a transverse direction and short in a vertical direction.
  • the body casing 11 accommodates a plurality of air blowing fans (air blowing devices) 12, a heat exchanger 13, a fan driving motor (driving portion) 14 and the like.
  • the body casing 11 includes: a top panel portion 16 suspendable from a ceiling; a bottom panel portion 17 disposed under a front portion of the top panel portion 16 in opposed relation thereto; a grille cover 18 disposed under a rear portion of the top panel portion 16 in opposed relation thereto; and side portion covers 19 (see FIG.1 ) disposed on transversely opposite sides of the top panel portion 16, the bottom panel portion 17 and the grille cover 18.
  • a rear end of the top panel portion 16 is bent downward so as to define a rear panel portion 16a.
  • the grille cover 18 is formed with an air inlet 20 for taking room air into the body casing 11.
  • a partition plate 21 vertically upstands between the bottom panel portion 17 and the grille cover 18, dividing the interior of the body casing 11 into front and rear spaces 11A, 11B.
  • the body casing 11 is formed with an air outlet 22 on a front side thereof.
  • the air outlet has a transversely elongated rectangular shape and defines an opening to the front.
  • the air blowing fans 12 are transversely arranged in the rear space 11B of the body casing 11 and supported by the partition plate 21.
  • Each of the air blowing fans 12 is a multiblade fan such as a sirocco fan.
  • Each of the air blowing fans 12 is driven by the motor 14.
  • the air blowing fan 12 is designed to suction the room air through the air inlet 20 (see FIG.2 ) formed in a bottom of a rear portion of the body casing 11, thus generating airflow into the space 11A forward of the partition plate 21.
  • the heat exchanger 13 is disposed in the front space 11A of the body casing 11 and designed to let through a forward airflow generated by the air blowing fans 12.
  • the heat exchanger 13 includes multitudes of fins 25 transversely arranged with predetermined spacing, and refrigerant piping 26 transversely extends as penetrating the fins 25.
  • the heat exchanger 13 has a length spanning most of the transverse range of the interior space of the body casing 11. The heat exchanger is placed slightly nearer one transverse side of the body casing (to the left side as seen in the figure) as viewed from the front.
  • components 27 such as piping for refrigerant circulation between the indoor unit and an outdoor unit are provided in adjoining relation with the heat exchanger 13.
  • the air blowing fans 12 are transversely distributed so as to deliver the airflow to the entire transverse range of the heat exchanger 13.
  • the air conditioner is capable of performing a cooling operation by using the heat exchanger 13 as an evaporator and a heating operation by using the heat exchanger 13 as a condenser.
  • the heat exchanger 13 is disposed at an angle with respect to the top panel portion 16 or the bottom panel portion 17 of the body casing 11 in a manner that an upper part thereof is located forward (closer to the air outlet 22; on a downstream side of the airflow) while a lower part thereof is located rearward (closer to the air blowing fans 12; on an upstream side of the airflow).
  • the airflow driven forward by the air blowing fans 12 passes through the heat exchanger 13 whereby the air exchanges heat with a refrigerant flowing through the refrigerant piping 26.
  • the resultant airflow is discharged as turned in a forward and obliquely downward direction, that is, substantially perpendicularly to the heat exchanger 13.
  • the top panel portion 16 is provided with a heat insulation 30 at a lower surface of a front end portion thereof.
  • An upper wall portion 31 of the air outlet 22 is defined by this insulation 30.
  • Disposed on the upper surface of the bottom panel portion 17 is a drain pan 32 for receiving condensation water generated at the heat exchanger 13.
  • a lower wall portion 33 of the air outlet 22 is defined by a front edge portion of the drain pan 32.
  • a lower surface of the upper wall portion 31 is inclined in a direction substantially perpendicular to the heat exchanger 13. Accordingly, the air having passed through the heat exchanger 13 and flowing in the direction substantially perpendicular to the heat exchanger 13 is reduced in flow resistance and turbulence when moving along the upper wall portion 31 to pass through the air outlet 22.
  • the reduction in volume of the air discharged from the air outlet 22 can be obviated in this manner.
  • the air outlet 22 is provided with an airflow adjustment blade for adjusting the direction (wind direction) of airflow discharged from the air outlet 22 after having passed through the heat exchanger 13.
  • the airflow adjustment blade includes a vertical blade (first adjustment blade) 35 for transverse adjustment of the wind direction and a horizontal blade (second adjustment blade) 36 disposed forwardly of the vertical blade 35 and making vertical adjustment of the wind direction.
  • each of vertical blades 35 is arranged substantially in the entire longitudinal range of the air outlet 22.
  • the vertical blades 35 are each mounted to the lower wall portion 33 in a manner to be transversely swingable about a first vertical axis X1.
  • a given number (e.g. four) of adjoining vertical blades 35 are interconnected via an interlocking member 39 such that these interconnected vertical blades 35 may swing simultaneously in the same direction.
  • the horizontal blade 36 has a length spanning substantially the entire longitudinal range of the air outlet 22.
  • the horizontal blade 36 is mounted via an unillustrated support member in a manner to be vertically swingable about a second axis X2 extending in the transverse direction.
  • the horizontal blade 36 is driven into the swing motion by an unillustrated motor or link mechanism.
  • the horizontal blade 36 is movable between a level position, indicated by a chain double-dashed line in FIG.4 , as an upper limit of the swing motion for adjustment of the wind direction and a downward position, indicated by a solid line in the figure, as a lower limit of the swing motion for adjustment of the wind direction.
  • the horizontal blade can be moved between these positions to make the vertical adjustment of the airflow direction.
  • the horizontal blade 36 is curved such that the horizontal blade, when in the level position, is convex upward as seen in side view.
  • the air outlet 22 is provided with an airflow shield member 43 at one transverse end portion thereof (the left end portion) for blocking the air flowing toward the air outlet 22 after having passed through the heat exchanger 13.
  • the airflow shield member 43 is a rectangular plate.
  • the airflow shield member is inclined in a manner that an upper part thereof is located forward.
  • the airflow shield member is disposed forwardly of the heat exchanger 13 and extends substantially in parallel to the heat exchanger with a gap t defined therebetween.
  • a gap T1 is also defined between an upper end of the airflow shield member 43 and the upper wall portion 31.
  • the air outlet 22 is provided with a blind plate (covering member) 45 at the other transverse end portion thereof (the right end portion), the blind plate covering the components 27 such as piping from the front side to keep the components out of sight.
  • FIG.5 is a schematic plan view showing an interior of the air outlet 22 at a left end portion of the air conditioner.
  • the air flowing forward through the heat exchanger 13 is blocked by the airflow shield member 43 so as to be guided rightward along a back side of the airflow shield member 43 (see an arrow a in the figure).
  • the airflow directed rightward to pass by the back side of the airflow shield member 43 is redirected forward (see an arrow b in the figure). In this manner, the airflow shield member 43 functions to divert the airflow having passed through the heat exchanger 13 transversely inwardly.
  • a low pressure region A1 which is substantially in no-airflow state is formed in front of the airflow shield member 43, as a result of blocking the airflow coming from the heat exchanger 13 side. Therefore, the airflow moving forward after passing by the airflow shield member 43 is turned leftward as drawn into the low pressure region A1, before discharged from the air outlet 22 (see an arrow c in the figure). Thus, a wide airflow spread leftward from the air outlet 22 can be formed without relying on the vertical blades 35.
  • FIG.6 is a schematic plan view showing an interior of the air outlet 22 at a right end portion of the air conditioner.
  • the components 27 such as piping are disposed within the body casing 11 at the right end thereof.
  • the air outlet 22 is provided with the blind plate 45 as the covering member in order to prevent the components 27 from being exposed on the air outlet 22 side.
  • a low pressure region A2 which is substantially in no-airflow state is formed in front of the blind plate 45. Therefore, the airflow moving forward after passing through the heat exchanger 13 and then passing along the left side of the blind plate 45 is turned rightward as drawn into the low pressure region A2, before discharged from the air outlet 22 (see an arrow d in the figure). In this manner, a wide airflow spread rightward from the air outlet 22 can be formed without relying on the vertical blades 35.
  • the air outlet 22 is provided with the airflow shield member 43 at the left end portion thereof and with the blind plate 45 at the right end portion thereof, so that the airflow is discharged from the air outlet 22 as spread wide in transversely opposite directions. Therefore, uneven air conditioning of the room can be obviated.
  • the vertical blades 35 are adapted to swing in the transverse direction.
  • a front-back end portion of one vertical blade 35 transversely overlaps with the other front-back end portion of its adjoining vertical blade 35 by an overlap width e. This ensures that the air flowing forward after passing through the heat exchanger 13 inevitably collides against the vertical blades 35 so as to be adjusted in the flow direction instead of being allowed to move straight ahead.
  • the vertical blades 35 When swung to the rightmost or leftmost position, therefore, the vertical blades 35 become capable of transversely widening the airflow, and accordingly functions, together with the above-described airflow shield member 43 and blind plate 45, to obviate the uneven air conditioning of the room.
  • the vertical blade 35 is formed to be substantially level with a rear end 36a of the horizontal blade 36 in the most downward position as indicated by a solid line in FIG.4 . Therefore, the airflow directed downward as passing under the horizontal blade 36 is also transversely adjusted in direction by the vertical blades 35. Hence, the airflow can be discharged in a transversely wider range by adjusting the vertical blades 35 to turn transversely outward.
  • a gap T2 between the rear end 36a of the horizontal blade 36 in the most downward position and the upper wall portion 31 of the air outlet 22 is substantially equal to the gap T1 between an upper end 43a of the airflow shield member 43 and the upper wall portion 31 of the air outlet 22.
  • the air (cool air) from the heat exchanger 13 having passed over the airflow shield member 43 flows though the gap T2 and along an upper surface of the horizontal blade 36.
  • the airflow along the upper surface of the horizontal blade 36 forms on the upper surface a cold-air seal of a cold air layer, which can prevent the formation of condensation on the upper surface of the horizontal blade.
  • the embodiment of the present invention can obviate such a problem.
  • the present invention is not limited to the above-described embodiment and permits appropriate design choices.
  • the present invention is also applicable to air conditioners besides the air conditioner including the ceiling suspended indoor unit 10.
  • the present invention may be applied to an air conditioner including, for example, a ceiling mounted indoor unit having a downward-oriented air outlet.
  • the location of the airflow shield member 43 according to the above-described embodiment is not limited to one longitudinal end of the air outlet 22.
  • the air outlet 22 may also be provided with the airflow shield members at both longitudinally opposite end portions thereof.
  • the blind plate 45 may be extended inward in the longitudinal direction of the air outlet 22 so that the extended portion may be located in front of the heat exchanger 13 to serve as the airflow shield member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
EP10764477.5A 2009-04-17 2010-04-14 Klimaanlage Withdrawn EP2420753A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009100911A JP4544364B1 (ja) 2009-04-17 2009-04-17 空気調和装置
PCT/JP2010/056678 WO2010119893A1 (ja) 2009-04-17 2010-04-14 空気調和装置

Publications (2)

Publication Number Publication Date
EP2420753A1 true EP2420753A1 (de) 2012-02-22
EP2420753A4 EP2420753A4 (de) 2018-04-18

Family

ID=42824794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10764477.5A Withdrawn EP2420753A4 (de) 2009-04-17 2010-04-14 Klimaanlage

Country Status (4)

Country Link
EP (1) EP2420753A4 (de)
JP (1) JP4544364B1 (de)
CN (1) CN102227595B (de)
WO (1) WO2010119893A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12000601B2 (en) 2019-03-29 2024-06-04 Mitsubishi Electric Corporation Air-conditioning apparatus

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013053796A (ja) * 2011-09-02 2013-03-21 Panasonic Corp 空気調和機
WO2014097686A1 (ja) * 2012-12-19 2014-06-26 三菱電機株式会社 空気調和機
JP6129126B2 (ja) * 2014-08-04 2017-05-17 三菱電機株式会社 空気調和機の室内機
WO2018189814A1 (ja) * 2017-04-11 2018-10-18 三菱電機株式会社 室内機および空気調和機
JP6904324B2 (ja) 2018-11-30 2021-07-14 ダイキン工業株式会社 空気調和装置の室内機
JP6848956B2 (ja) * 2018-11-30 2021-03-24 ダイキン工業株式会社 空気調和装置の室内機
WO2021024317A1 (ja) * 2019-08-02 2021-02-11 三菱電機株式会社 吹出グリル、室内機及び空気調和装置
CN114222892B (zh) * 2019-08-20 2023-06-13 三菱电机株式会社 吹出格栅以及使用该吹出格栅的空调装置的室内机
WO2024189715A1 (ja) * 2023-03-13 2024-09-19 三菱電機株式会社 空気調和機の室内機

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JPS59180225A (ja) * 1983-03-30 1984-10-13 Matsushita Electric Ind Co Ltd 空気調和装置
JPS61265441A (ja) * 1985-05-20 1986-11-25 Matsushita Electric Ind Co Ltd 流れ方向制御装置
JPH0414955U (de) * 1990-05-25 1992-02-06
JP2993412B2 (ja) * 1995-11-20 1999-12-20 三菱電機株式会社 吹出口及び該吹出口を備えた空気調和装置
JP3269410B2 (ja) * 1996-11-19 2002-03-25 松下電器産業株式会社 空気調和機の風向変更装置
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JP4254976B2 (ja) * 1999-03-25 2009-04-15 株式会社フジタ 空調方法
JP3709777B2 (ja) * 2000-09-29 2005-10-26 ダイキン工業株式会社 空気調和装置
JP2002106882A (ja) * 2000-09-29 2002-04-10 Daikin Ind Ltd 空気調和装置
CN1594994A (zh) * 2004-07-07 2005-03-16 广东科龙电器股份有限公司 采用轴流风扇系统的空调室内机
KR100782197B1 (ko) * 2006-08-03 2007-12-04 엘지전자 주식회사 공기 조화기
KR100820886B1 (ko) * 2007-03-26 2008-04-11 위니아만도 주식회사 천장형 에어컨의 토출프레임

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12000601B2 (en) 2019-03-29 2024-06-04 Mitsubishi Electric Corporation Air-conditioning apparatus

Also Published As

Publication number Publication date
CN102227595B (zh) 2013-07-10
WO2010119893A1 (ja) 2010-10-21
JP2010249447A (ja) 2010-11-04
EP2420753A4 (de) 2018-04-18
CN102227595A (zh) 2011-10-26
JP4544364B1 (ja) 2010-09-15

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