EP2224184B1 - Unité intérieure de climatisation - Google Patents

Unité intérieure de climatisation Download PDF

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Publication number
EP2224184B1
EP2224184B1 EP08867622.6A EP08867622A EP2224184B1 EP 2224184 B1 EP2224184 B1 EP 2224184B1 EP 08867622 A EP08867622 A EP 08867622A EP 2224184 B1 EP2224184 B1 EP 2224184B1
Authority
EP
European Patent Office
Prior art keywords
reinforcement ribs
lateral reinforcement
top plate
lateral
indoor unit
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.)
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Application number
EP08867622.6A
Other languages
German (de)
English (en)
Other versions
EP2224184A1 (fr
EP2224184A4 (fr
Inventor
Jihong Liu
Mariko Takakura
Isao Ohgami
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 EP2224184A1 publication Critical patent/EP2224184A1/fr
Publication of EP2224184A4 publication Critical patent/EP2224184A4/fr
Application granted granted Critical
Publication of EP2224184B1 publication Critical patent/EP2224184B1/fr
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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

Definitions

  • the present invention relates to an indoor unit for an air conditioner, and, more particularly, to a configuration of a top plate of an indoor unit for an air conditioner.
  • This type of indoor unit for an air conditioner (which is, for example, an indoor unit for a built-in type air conditioner) includes a top plate having increased rigidity.
  • Methods for increasing the rigidity of the top plate include spot welding of an L-shaped angle bar to the top plate and formation of a reinforcement rib on the top plate to which the L-shaped angle bar has been spot-welded.
  • Such methods for increasing the rigidity of the top plate necessitate an additional component, which is the L-shaped angle bar attached to the top plate. This not only raises the cost for manufacturing the indoor unit but also increases the weight of the indoor unit and the thickness of the top plate.
  • Patent Document 1 The technique for increasing the rigidity of the top plate by forming parallel reinforcement ribs on this type of top plate has been conventionally known as disclosed in Patent Document 1.
  • Patent Document 1 The technique disclosed in Patent Document 1 relates to a configuration of a top plate for supporting a fan and fan motor to the top plate each in a suspended state. A plurality of reinforcement ribs are formed on the top plate. However, in the technique described in Patent Document 1, deflection of the top plate caused by static pressure and torsion and flexure of the top plate caused by spring back after the top plate is formed are not considered. Patent Document 1: Japanese Laid-Open Patent Publication No. 2006-105573
  • JP 2007/192415 discloses features falling under the preamble of claim 1.
  • an air conditioner indoor unit having the features of claim 1 is provided.
  • the longitudinal reinforcement rib 14 and the lateral reinforcement ribs 15, 16 are formed on the top plate 13. This significantly increases the rigidity of the top plate 13 as a whole. If the lateral reinforcement ribs 15, 16 are formed by stretch-forming, one or more first lateral reinforcement ribs 15 and one or more second lateral reinforcement ribs 16, which are formed in the first region 13a and the second region 13b, respectively, decrease torsion and flexure of the top plate 13 caused by spring back after the first and second lateral reinforcement ribs 15, 16 are formed. This increases work efficiency when the top plate 13 is mounted.
  • the top plate 13 has a rectangular shape, and the longitudinal reinforcement rib 14 extends parallel to the side edges 13c of the top plate (13).
  • the top plate 13, which is shaped rectangular, is divided into the first region 13a and the second region 13b.
  • the longitudinal reinforcement rib 14 is usable as a member for supporting an upper end of a component arranged in the body casing, which is, for example, a partition plate 9.
  • the one or more first lateral reinforcement ribs 15 and the one or more second lateral reinforcement ribs 16 extend in a direction perpendicular to the longitudinal reinforcement rib 14 and the side edges 13c of the top plate 13. In this configuration, the lengths of the first and second lateral reinforcement ribs 15, 16 are minimized. This simplifies formation of the first and second lateral reinforcement ribs 15, 16. If the first and second lateral reinforcement ribs 15, 16 are formed by stretch-forming, torsion and flexure of the top plate 13 caused by spring back after the lateral reinforcement ribs 15, 16 are formed, are decreased further effectively. As a result, the top plate 13 is mounted with further improved work efficiency.
  • the one or more first lateral reinforcement ribs 15 preferably include a pair of first lateral reinforcement ribs 15, and the one or more second lateral reinforcement ribs 16 include a pair of second lateral reinforcement ribs 16.
  • One of the first lateral reinforcement ribs 15 and a corresponding one of the second lateral reinforcement ribs 16 are preferably aligned along a common straight line, and the other first lateral reinforcement rib 15 and the corresponding second lateral reinforcement rib 16 are preferably arranged along mutually offset straight lines.
  • the first and second lateral reinforcement ribs 15, 16 are located in accordance with the positions and the shape of the components arranged in the body casing 1.
  • the one or more first lateral reinforcement ribs 15 preferably include three or more first lateral reinforcement ribs 15, and the one or more second lateral reinforcement ribs 16 preferably include three or more second lateral reinforcement ribs 16. Some of the first lateral reinforcement ribs 15 and corresponding ones of the second lateral reinforcement ribs 16 are preferably aligned along common straight lines, and the other first lateral reinforcement ribs 15 and the corresponding second lateral reinforcement ribs 16 are preferably arranged along mutually offset straight lines. In this configuration, the first and second lateral reinforcement ribs 15, 16 are located further effectively in accordance with the positions and the shapes of the components arranged in the body casing 1.
  • the top plate 13 preferably has the side edges 13c and a pair of end edges 13d, 13e extending perpendicular to the side edges 13c.
  • An edge bending rib 17 extending downward is preferably formed in each side edge 13c and each end edge 13d, 13e. In this configuration, the edge bending rib 17 increases the rigidity of the side edges 13c and the end edges 13d, 13e of the first and second regions 13a, 13b, which are divided by the longitudinal reinforcement rib 14 on the top plate 13. This increases the rigidity of the top plate 13 as a whole further effectively.
  • first and second lateral reinforcement ribs 15, 16 are formed by stretch-forming, torsion and flexure of the top plate 13 caused by spring back after the lateral reinforcement ribs 15, 16 are formed are decreased further effectively. As a result, the top plate 13 is mounted with improved work efficiency.
  • the longitudinal reinforcement rib 14 is preferably formed through bending. In this configuration, spring back does not occur after the longitudinal reinforcement rib 14 is formed. Also, the top plate 13 is formed by the first and second regions 13a, 13b, which are fully separated areas, thus preventing the first and second lateral reinforcement ribs 15, 16 from being twisted or flexed after the lateral reinforcement ribs 15, 16 are formed. This improves work efficiency when the top plate 13 is mounted.
  • the one or more first lateral reinforcement ribs 15 and the one or more second lateral reinforcement ribs 16 are formed by stretch-forming. This configuration simplifies the steps for molding the first and second lateral reinforcement ribs 15, 16.
  • Atop plate 13 which is illustrated in Fig. 1 , is optimal for use in a body casing 1 of an air conditioner indoor unit A (for 2 HP(1.5 kW)) shown in Fig. 2 .
  • the air conditioner indoor unit A is a built-in type arranged in the path of a duct and includes the rectangular parallelepiped body casing 1.
  • the body casing 1 accommodates a fan 2 and a heat exchanger 3.
  • the fan 2 draws air from an air inlet port 7 of the fan casing 5 and blasts the air through an outlet port 8, which is arranged in the distal end of the fan casing 5.
  • the space in the body casing 1 is divided into a fan chamber 10 and a heat exchange chamber 11 by a partition plate 9.
  • the fan 2 is arranged in the fan chamber 10 with a distal portion of the fan casing 5 supported by the partition plate 9.
  • the heat exchanger 3 is arranged in the heat exchange chamber 11 in an inclined state. Indoor air Wr is drawn through an inlet duct 4a, which communicates with the fan chamber 10, and sent into the heat exchange chamber 11 through the fan 2. The heat exchanger 3 selectively cools and heats the indoor air Wr that has been blasted out from the fan 2. After having been cooled or heated, the air is blasted out into the room from an outlet duct 4b as conditioned air W.
  • a drain pan 12 is arranged in the heat exchange chamber 11.
  • the first region 13a has two first lateral reinforcement ribs 15, which are formed between the longitudinal reinforcement rib 14 and the corresponding one of two side edges 13c of the top plate 13.
  • the second region 13b has two lateral reinforcement ribs 16, which are formed between the longitudinal reinforcement rib 14 and the corresponding one of the two side edges 13c of the top plate 13.
  • Edge bending ribs 17 extending downward are formed along the side edges 13c and end edges 13d, 13e, which extend perpendicular to the side edges 13c, of the top plate 13. The edge bending ribs 17 thus increase the rigidity of the top plate 13 at the side edges 13c and the end edges 13d, 13e of the first and second regions 13a, 13b.
  • the longitudinal reinforcement rib 14 is a recessed groove that extends parallel to the side edges 13c of the top plate 13 and divides the top plate 13 into the first and second regions 13a, 13b.
  • the longitudinal reinforcement rib 14 is formed through bending.
  • the top plate 13 is divided into the first and second regions 13a, 13b, each of which has a rectangular shape, by the longitudinal reinforcement rib 14.
  • the first and second regions 13a, 13b are prevented from being distorted through machining.
  • the longitudinal reinforcement rib 14 functions as a member for supporting an upper end of the partition plate 9 (see Fig. 2 ).
  • first and second lateral reinforcement ribs 15, 16 both extend perpendicular to the side edges 13c of the top plate 13.
  • the first and second lateral reinforcement ribs 15, 16 may be inclined with respect to a direction perpendicular to the longitudinal reinforcement rib 14 (up to approximately 45°).
  • the numbers of the first and second lateral reinforcement ribs 15, 16 may be selected in accordance with the size of the corresponding one of the first and second regions 13a, 13b, respectively.
  • the first lateral reinforcement ribs 15 may be shaped differently in the first region 13a, and the second lateral reinforcement ribs 16 may be shaped differently in the second region 13b.
  • the positions of the first and second lateral reinforcement ribs 15, 16 may be determined in accordance with the shapes and the positions of the devices arranged in the body casing 1. For example, with reference to Fig. 1 , one of the first lateral reinforcement ribs 15 in the first region 13a and the corresponding one of the second lateral reinforcement ribs 16 in the second region 13b are aligned along a straight line in a direction perpendicular to the longitudinal reinforcement rib 14 and the side edges 13c of the top plate 13. The other one of the first lateral reinforcement ribs 15 and the corresponding one of the second lateral reinforcement ribs 16 are arranged along offset straight lines in directions perpendicular to the longitudinal reinforcement rib 14 and the side edges 13c of the top plate 13, without being aligned along a line.
  • the first and second lateral reinforcement ribs 15, 16 of the top plate 13 are formed by stretch-forming.
  • the stretch forming is performed using a die illustrated in Figs. 3(a) to 3(c) .
  • the top plate 13 is formed using a blank 13' shown in Fig. 3(d) .
  • the blank 13' shown in Fig. 3(d) is mounted on a die block X, which is illustrated in Fig. 3(c) .
  • the blank 13' is maintained by a holder Y, which is shown in Fig. 3(b) and arranged on the blank 13'.
  • the top plate 13 is shaped.
  • the longitudinal reinforcement rib 14 is formed in the blank 13' in advance through bending.
  • the stretch forming simplifies the molding steps but causes torsion and flexure of a formed product caused by spring back after the product is formed.
  • the longitudinal reinforcement rib 14 and the first and second lateral reinforcement ribs 15, 16 are formed on the formed top plate 13, thus significantly increasing the rigidity of the top plate 13 as a whole. Further, since the first and second lateral reinforcement ribs 15, 16 are formed in the corresponding first and second regions 13a, 13b, which are separated from each other by the longitudinal reinforcement rib 14, torsion and flexure of the top plate 13 caused by spring back after the first and second lateral reinforcement ribs 15, 16 are formed are decreased. This improves work efficiency when the top plate 13 is mounted.
  • a configuration of a top plate for an air conditioner indoor unit according to a second embodiment of the present invention will hereafter be described mainly about the differences from the first embodiment.
  • first lateral reinforcement ribs 15 are formed in a first region 13a, and four second lateral reinforcement ribs 16 are arranged in a second region 13b.
  • some of the first lateral reinforcement ribs 15 and the corresponding ones of the second lateral reinforcement ribs 16 are aligned along common straight lines, and the other ones of the first lateral reinforcement ribs 15 and the corresponding other ones of the second lateral reinforcement ribs 16 are arranged along offset straight lines without being aligned along common straight lines.
  • first lateral reinforcement ribs 15 in the first region 13a and the corresponding two of the second lateral reinforcement ribs 16 in the second region 13b are aligned along common straight lines in directions perpendicular to the longitudinal reinforcement rib 14 and the side edges 13c of the top plate 13.
  • the other two of the first lateral reinforcement ribs 15 and the corresponding other two of the second lateral reinforcement ribs 16 are arranged along offset straight lines in directions perpendicular to the longitudinal reinforcement rib 14 and the side edges 13c of the top plate 13, without being aligned along common straight lines.
  • the configuration of the other components of the second embodiment is the same as the configuration of the corresponding components of the first embodiment, and the advantages of the second embodiment are equivalent to those of the first embodiment. Accordingly, explanation of the configuration of these components and the advantages of the second embodiment are omitted herein.
  • the air conditioner indoor unit according to the invention is embodied as a built-in type indoor unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Other Air-Conditioning Systems (AREA)

Claims (6)

  1. Unité intérieure de climatisation ayant un boîtier de corps (1) logeant un ventilateur (2) et un échangeur de chaleur (3), le boîtier de corps (1) ayant une plaque supérieure (13) agencée dans une partie supérieure de celui-ci, la plaque supérieure (13) ayant une nervure de renfort longitudinale (14) divisant la plaque supérieure (13) en des première et seconde régions (13a, 13b), une ou plusieurs premières nervures de renfort latérales (15) et une ou plusieurs secondes nervures de renfort latérales (16), les premières nervures de renfort latérales (15) sont agencées dans la première région (13a) et entre la nervure de renfort longitudinale (14) et un parmi deux bords latéraux (13c) de la plaque supérieure (13) qui sont orientés vers la nervure de renfort longitudinale (14), et dans laquelle les secondes nervures de renfort latérales (16) sont agencées dans la seconde région (13b) et entre la nervure de renfort longitudinale (14) et l'autre bord latéral (13c),
    caractérisée en ce que
    la plaque supérieure (13) présente une forme rectangulaire, la nervure de renfort longitudinale (14) s'étendant de manière parallèle aux bords latéraux (13c) de la plaque supérieure (13),
    dans laquelle lesdites une ou plusieurs premières nervures de renfort latérales (15) et lesdites une ou plusieurs secondes nervures de renfort latérales (16) s'étendent dans une direction perpendiculaire à la nervure de renfort longitudinale (14) et aux bords latéraux (13c) de la plaque supérieure (13),
    l'unité intérieure de climatisation étant du type intégré dans un trajet d'un conduit.
  2. Unité intérieure de climatisation selon la revendication 1, dans laquelle lesdites une ou plusieurs nervures de renfort latérales (15) comprennent une paire de premières nervures de renfort latérales (15), et lesdites une ou plusieurs secondes nervures de renfort latérales (16) comprennent une paire de secondes nervures de renfort latérales (16), et dans laquelle une des premières nervures de renfort latérales (15) et une correspondante parmi les secondes nervures de renfort latérales (16) sont alignées le long d'une ligne droite commune, et l'autre première nervure de renfort latérale (15) et la seconde nervure de renfort latérale correspondante (16) sont agencées le long de lignes droites mutuellement décalées.
  3. Unité intérieure de climatisation selon la revendication 1, dans laquelle lesdites une ou plusieurs premières nervures de renfort latérales (15) comportent trois ou plus premières nervures de renfort latérales (15), lesdites une ou plusieurs secondes nervures de renfort latérales (16) comportent trois ou plus secondes nervures de renfort latérales (16), et dans laquelle certaines des premières nervures de renfort latérales (15) et celles correspondantes parmi les secondes nervures de renfort latérales (16) sont alignées le long de lignes droites communes, et les autres premières nervures de renfort latérales (15) et les secondes nervures de renfort latérales correspondantes (16) sont agencées le long de lignes droites mutuellement décalées.
  4. Unité intérieure de climatisation selon l'une quelconque des revendications 1 à 3, dans laquelle la plaque supérieure (13) présente des bords latéraux (13c) et une paire de bords terminaux (13d, 13e) s'étendant de manière perpendiculaire aux bords latéraux (13c), une nervure de courbure de bord (17) s'étendant vers le bas étant formée dans chaque bord latéral (13c) et chaque bord terminal (13d, 13e).
  5. Unité intérieure de climatisation selon l'une quelconque des revendications 1 à 4, dans laquelle la nervure de renfort longitudinale (14) est formée par courbure.
  6. Unité intérieure de climatisation selon l'une quelconque des revendications 1 à 5, dans laquelle lesdites une ou plusieurs premières nervures de renfort latérales (15) et lesdites une ou plusieurs secondes nervures de renfort latérales (16) sont formées par formage par étirage.
EP08867622.6A 2007-12-27 2008-12-18 Unité intérieure de climatisation Active EP2224184B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007336953A JP4305559B2 (ja) 2007-12-27 2007-12-27 空気調和機用室内機
PCT/JP2008/073106 WO2009084457A1 (fr) 2007-12-27 2008-12-18 Unité intérieure de climatisation

Publications (3)

Publication Number Publication Date
EP2224184A1 EP2224184A1 (fr) 2010-09-01
EP2224184A4 EP2224184A4 (fr) 2013-11-13
EP2224184B1 true EP2224184B1 (fr) 2017-08-30

Family

ID=40824177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08867622.6A Active EP2224184B1 (fr) 2007-12-27 2008-12-18 Unité intérieure de climatisation

Country Status (8)

Country Link
US (1) US20100206514A1 (fr)
EP (1) EP2224184B1 (fr)
JP (1) JP4305559B2 (fr)
KR (1) KR101156293B1 (fr)
CN (1) CN101836049B (fr)
AU (1) AU2008344552B2 (fr)
ES (1) ES2641904T3 (fr)
WO (1) WO2009084457A1 (fr)

Families Citing this family (8)

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JP2011257068A (ja) * 2010-06-09 2011-12-22 Mitsubishi Heavy Ind Ltd 空気調和装置用キャビネット及びこれを用いた空気調和装置
KR102073002B1 (ko) 2013-08-22 2020-02-04 삼성전자주식회사 공기조화기
KR102337163B1 (ko) * 2014-11-12 2021-12-09 삼성전자주식회사 덕트형 공기조화장치 및 그 조립 및 분해방법
KR102508191B1 (ko) * 2017-11-10 2023-03-09 삼성전자주식회사 공기조화기
JP7253926B2 (ja) 2019-01-09 2023-04-07 Ａｗｊ株式会社 配管支持具及びその製造方法
WO2020177328A1 (fr) * 2019-03-03 2020-09-10 广东美的制冷设备有限公司 Ensemble panneau d'air frais, unité intérieure de climatiseur et climatiseur associé
WO2020188793A1 (fr) * 2019-03-20 2020-09-24 三菱電機株式会社 Climatiseur
US11105516B2 (en) 2019-06-03 2021-08-31 Johnson Controls Technology Company Panel for an HVAC system

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Also Published As

Publication number Publication date
ES2641904T3 (es) 2017-11-14
AU2008344552A1 (en) 2009-07-09
WO2009084457A1 (fr) 2009-07-09
CN101836049A (zh) 2010-09-15
EP2224184A1 (fr) 2010-09-01
US20100206514A1 (en) 2010-08-19
KR20100057696A (ko) 2010-05-31
EP2224184A4 (fr) 2013-11-13
KR101156293B1 (ko) 2012-06-13
JP4305559B2 (ja) 2009-07-29
CN101836049B (zh) 2013-04-10
JP2009156535A (ja) 2009-07-16
AU2008344552B2 (en) 2011-03-10

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