EP1243864A3 - Indoor unit and air-conditioner - Google Patents

Indoor unit and air-conditioner Download PDF

Info

Publication number
EP1243864A3
EP1243864A3 EP02006380A EP02006380A EP1243864A3 EP 1243864 A3 EP1243864 A3 EP 1243864A3 EP 02006380 A EP02006380 A EP 02006380A EP 02006380 A EP02006380 A EP 02006380A EP 1243864 A3 EP1243864 A3 EP 1243864A3
Authority
EP
European Patent Office
Prior art keywords
taken
degrees
air duct
casing
range
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
EP02006380A
Other languages
German (de)
French (fr)
Other versions
EP1243864B1 (en
EP1243864A2 (en
Inventor
Kazuhiro c/o Mitsubishi Heavy Industries Suzuki
Yuuji c/o Mitsubishi Heavy Industries Okada
Kenichi/O Mitsubishi Heavy Industries Miyazawa
Hajime c/o Mitsubishi Heavy Industries Izumi
Kiyoshi c/o Mitsubishi Heavy Industries Suenaga
Tetsuo c/o Mitsubishi Heavy Industries Tominaga
Fumio c/o Mitsubishi Heavy Industries Kondou
Masashi c/o Mitsubishi Heavy Industries Maeno
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 Ltd
Original Assignee
Mitsubishi Heavy 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
Priority claimed from JP2001084416A external-priority patent/JP2002276585A/en
Priority claimed from JP2001084413A external-priority patent/JP3564414B2/en
Priority claimed from JP2001084415A external-priority patent/JP3621892B2/en
Priority claimed from JP2001084414A external-priority patent/JP2002276975A/en
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP1243864A2 publication Critical patent/EP1243864A2/en
Publication of EP1243864A3 publication Critical patent/EP1243864A3/en
Application granted granted Critical
Publication of EP1243864B1 publication Critical patent/EP1243864B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • 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
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025—Cross-flow or tangential fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Flow Control Members (AREA)

Abstract

In an indoor unit, when the fan diameter of a tangential fan (14) is taken to be D, and the width of the intake diaphragm provided on the upstream side of the inlet of an air duct (40) inside the casing is taken to be f, f/D is within the range of 0.002 to 0.003 (0.002 ≦ f/D ≦ 0.003). In addition, when the width of the outlet of an air duct (40) formed between the outer peripheral surface (14a) of a tangential fan (14) and the air duct wall surface (41) of the casing is taken to be Wo, Wo/D is 0.55 or less (Wo/D ≦ 0.55). In addition, when a line extending in the direction of flow along the upper surface that forms the discharge port serving as the air duct outlet in the casing is taken to be a, the stabilizer tongue end angle α, which is formed between the surface of the stabilizer opposing tangential fan (14) and the extended line a, is within the range of 50 degrees to 60 degrees (50 degrees ≦α≦60 degrees). In addition, when the distance between the extended line a and a tangent b of the fan diameter D parallel to said extended line a is taken to be d, d/D is within the range of -0.2 to 0.2 (-0.2 ≦ d/D ≦ 0.2).
EP02006380A 2001-03-23 2002-03-21 Indoor unit and air-conditioner Expired - Lifetime EP1243864B1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2001084414 2001-03-23
JP2001084413 2001-03-23
JP2001084416A JP2002276585A (en) 2001-03-23 2001-03-23 Indoor unit and air conditioner
JP2001084413A JP3564414B2 (en) 2001-03-23 2001-03-23 Indoor unit and air conditioner
JP2001084416 2001-03-23
JP2001084415 2001-03-23
JP2001084415A JP3621892B2 (en) 2001-03-23 2001-03-23 Indoor unit and air conditioner
JP2001084414A JP2002276975A (en) 2001-03-23 2001-03-23 Indoor unit and air conditioner

Publications (3)

Publication Number Publication Date
EP1243864A2 EP1243864A2 (en) 2002-09-25
EP1243864A3 true EP1243864A3 (en) 2003-01-02
EP1243864B1 EP1243864B1 (en) 2007-10-10

Family

ID=27482133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02006380A Expired - Lifetime EP1243864B1 (en) 2001-03-23 2002-03-21 Indoor unit and air-conditioner

Country Status (5)

Country Link
EP (1) EP1243864B1 (en)
CN (1) CN1282853C (en)
AT (1) ATE375483T1 (en)
DE (1) DE60222823D1 (en)
ES (1) ES2291387T3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100343595C (en) * 2003-05-20 2007-10-17 乐金电子(天津)电器有限公司 Fan hood for air conditioner indoor machine
JP4873845B2 (en) * 2004-10-01 2012-02-08 三菱電機株式会社 Air conditioner
KR20090040690A (en) 2007-10-22 2009-04-27 엘지전자 주식회사 Air conditioner
CN103486661B (en) * 2012-06-13 2016-08-03 珠海格力电器股份有限公司 Air pipe indoor unit
CN103486669B (en) * 2012-06-13 2016-03-23 珠海格力电器股份有限公司 Indoor machine
JP5862655B2 (en) * 2013-12-27 2016-02-16 ダイキン工業株式会社 Air conditioning indoor unit
KR101731368B1 (en) 2016-03-17 2017-04-28 가부시키가이샤 고마쓰 세이사쿠쇼 Control system for work vehicle, control method, and work vehicle
EP3505766B1 (en) * 2016-09-30 2021-05-19 Daikin Industries, Ltd. Cross-flow blower and indoor unit of air-conditioning device equipped with same
CN107490064B (en) * 2017-08-25 2023-11-07 格力电器（武汉）有限公司 Indoor unit and air conditioning system
CN107490066B (en) * 2017-08-25 2023-05-23 武汉凌达压缩机有限公司 Indoor unit and air conditioning system
CN107490067B (en) * 2017-08-25 2022-11-15 珠海凌达压缩机有限公司 Indoor unit and air conditioning system
CN111997936B (en) * 2020-08-27 2021-04-06 华中科技大学 Adjustable volute tongue device and cross-flow fan
CN112253541A (en) * 2020-09-25 2021-01-22 宁波方太厨具有限公司 Volute profile generation method of centrifugal fan, volute and centrifugal fan
CN112432355B (en) * 2020-12-03 2022-06-28 珠海格力电器股份有限公司 Volute component, air supply component and air conditioning system
WO2022195834A1 (en) * 2021-03-19 2022-09-22 三菱電機株式会社 Indoor unit and air conditioning device
CN114636197B (en) * 2022-03-31 2023-09-08 广东美的白色家电技术创新中心有限公司 Cross-flow fan and air conditioner
CN114837974A (en) * 2022-06-07 2022-08-02 珠海格力电器股份有限公司 Cross-flow fan and air conditioning equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014625A (en) * 1973-08-20 1977-03-29 Teruo Yamamoto Transverse flow fan
JPH0771781A (en) * 1993-08-31 1995-03-17 Mitsubishi Heavy Ind Ltd Air conditioner
JPH07305695A (en) * 1995-04-14 1995-11-21 Sanyo Electric Co Ltd Air conditioner
EP0930472A2 (en) * 1998-01-19 1999-07-21 Mitsubishi Denki Kabushiki Kaisha Cross flow fan
US5943878A (en) * 1998-05-22 1999-08-31 American Standard Inc. Tangential fan scroll and discharged diffuser design
JP2000009098A (en) * 1998-06-22 2000-01-11 Pacific Ind Co Ltd Wall type bath room heating/drying apparatus
JP2000291594A (en) * 1999-04-05 2000-10-17 Sharp Corp Cross flow fan

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014625A (en) * 1973-08-20 1977-03-29 Teruo Yamamoto Transverse flow fan
JPH0771781A (en) * 1993-08-31 1995-03-17 Mitsubishi Heavy Ind Ltd Air conditioner
JPH07305695A (en) * 1995-04-14 1995-11-21 Sanyo Electric Co Ltd Air conditioner
EP0930472A2 (en) * 1998-01-19 1999-07-21 Mitsubishi Denki Kabushiki Kaisha Cross flow fan
US5943878A (en) * 1998-05-22 1999-08-31 American Standard Inc. Tangential fan scroll and discharged diffuser design
JP2000009098A (en) * 1998-06-22 2000-01-11 Pacific Ind Co Ltd Wall type bath room heating/drying apparatus
JP2000291594A (en) * 1999-04-05 2000-10-17 Sharp Corp Cross flow fan

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 06 31 July 1995 (1995-07-31) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 03 29 March 1996 (1996-03-29) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05) *

Also Published As

Publication number Publication date
ATE375483T1 (en) 2007-10-15
CN1282853C (en) 2006-11-01
CN1376878A (en) 2002-10-30
DE60222823D1 (en) 2007-11-22
EP1243864B1 (en) 2007-10-10
ES2291387T3 (en) 2008-03-01
EP1243864A2 (en) 2002-09-25

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