EP2203688A1 - Climatiseur - Google Patents

Climatiseur

Info

Publication number
EP2203688A1
EP2203688A1 EP08766412A EP08766412A EP2203688A1 EP 2203688 A1 EP2203688 A1 EP 2203688A1 EP 08766412 A EP08766412 A EP 08766412A EP 08766412 A EP08766412 A EP 08766412A EP 2203688 A1 EP2203688 A1 EP 2203688A1
Authority
EP
European Patent Office
Prior art keywords
fan
rear guide
air
recess
air conditioner
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Withdrawn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
EP08766412A
Other languages
German (de)
English (en)
Other versions
EP2203688A4 (fr
Inventor
Deok Huh
Jeong-Taek Park
Ki-Won Seo
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2203688A1 publication Critical patent/EP2203688A1/fr
Publication of EP2203688A4 publication Critical patent/EP2203688A4/fr
Withdrawn legal-status Critical Current

Links

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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • 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
    • 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
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the present invention relates to an air conditioner.
  • an air conditioner is an apparatus that uses a refrigerant cycle to cool and/ or heat an indoor space.
  • a heat exchanger and a fan are disposed inside the air conditioner. Air introduced from an air intake portion is heat-exchanged in the heat exchanger, and then the heat-exchanged air is discharged into the indoor space through an air outlet portion when the fan rotates.
  • a rear guide spaced from an outer periphery of the fan is disposed on an intake side of the fan. The rear guide guides the heat- exchanged air such that the air is smoothly introduced into the fan.
  • This feature may be achieved by an air conditioner which includes a fan and a rear guide which guides air to the fan.
  • a recess is formed in a side surface of the rear guide which faces the fan.
  • the recess may extend from a portion of the rear guide which is closest to the fan to an end of the rear guide.
  • the recess may be inclined, at an angle of approximately 4-6 degrees, relative to a line tangential to a surface of the rear guide at a portion of the rear guide which is closest to the fan.
  • a ratio of a diameter D of the fan to a depth d of the recess may be approximately 0.01 ⁇ d/D ⁇ 0.015.
  • a ratio of a diameter D of the fan to a thickness t of a portion of the rear guide at which the recess is formed may be approximately 0.4 ⁇ t/D ⁇ 0.5.
  • a ratio of a diameter D of the fan to a length L of the recess may be approximately 0.14 ⁇ L/D ⁇ 0.18.
  • a bell mouth portion extending in a direction opposite to the fan may be formed at an end of the rear guide.
  • a recess is formed in a rear guide to minimize an air turbulence at a rear guide.
  • FIG. 1 is a cross-sectional view of an air conditioner in accordance with an embodiment of the present invention.
  • FIG. 2 is a partial enlarged view of a rear guide of the air conditioner of Fig. 1 in accordance with an embodiment of the present invention.
  • FIG. 3 is a partial enlarged view of a rear guide of the air conditioner of Fig. 1 in accordance with another embodiment of the present invention.
  • FIG. 1 is a cross-sectional view of an air conditioner in accordance with an embodiment of the present invention.
  • the air conditioner includes a case 10, a heat exchanger 20, and a fan 30.
  • the heat exchanger 20 and the fan 30 are disposed inside the case.
  • a front air intake portion 11 is disposed in a front side of the case 10, and a top air intake portion 12 is disposed in an upper side of the case 10.
  • a filter 13 for filtering intake air is disposed on the front air intake portion 11 and the top air intake portion 12. The filter is attachably or detachably installed on the front air intake portion 11 and the top air intake portion 12.
  • An air outlet 14 is disposed in a lower side of the case 10.
  • An air outlet louver 15 that can adjust the direction or angle of airflow is disposed in the air outlet 14. The air outlet louver 15 is closed when an operation of the air conditioner is stopped.
  • a fan 30 is disposed in one side of the heat exchanger 20.
  • the fan 30 may be a cross- flow fan, for example.
  • the fan 30 discharges air which enters the air conditioner through the air intake portions 11 and 12 in a direction perpendicular to a rotational direction of the fan 30.
  • the heat exchanger 20 includes a refrigerant tube 24, and a plurality of heat exchange pins 25. Refrigerant flows through the refrigerant tube 24. The refrigerant tube 24 passes through the plurality of heat exchange pins 25.
  • the heat exchanger 20 is disposed around an intake side of the fan 30.
  • the heat exchanger 20 may include a plurality of heat exchange portions 21, 22 and 23, which are arranged at different angles within the case 10 around the intake side of the fan 30.
  • the heat exchanger 20 includes a plurality of heat exchange portions 21, 22 and 23 which are disposed at angles, as shown, for example, in Fig. 1, a relatively large heat exchange surface area, and consequently, a relatively large heat exchange capacity, can be achieved.
  • the heat exchanger 20 can be formed in one piece which has a bent shape.
  • a rear guide 50 extending toward the intake side of the fan 30 is disposed in a rear side of the case 10 to guide air to the fan.
  • a recess 51 is formed in one side of the rear guide 50 facing the fan 30. The recess 51 increases the space between the surface of the rear guide 50 and the fan 30, which results in lower air turbulence around the outer periphery of the fan 30.
  • a stabilizer 40 for preventing the air discharged from the fan 30 from flowing towards the heat exchanger 20 is disposed in the outlet 14 of the fan 30.
  • the stabilizer 40 is spaced from the outer periphery of the fan 30 by a predetermined space.
  • FIG. 2 is a partial enlarged view of a rear guide of the air conditioner of Fig. 1 in accordance with an embodiment of the present invention.
  • the recess 51 extends from a portion P of the rear guide 50 which is closest to an outer periphery of the fan 30 to an end of the rear guide 50.
  • the recess 51 is inclined, at an angle of approximately 4-6 degrees, relative to a line tangential to a surface of the rear guide 50 at the portion P. If the recess 51 is inclined at an angle of less than approximately 4 degrees, air turbulence, which is caused by the rear guide 50, increases around the outer periphery of the fan 30, which rotates in a clockwise direction. If the recess 51 is inclined at an angle of more than approximately 6 degrees, the space between the outer periphery of the fan 30 and the recess 51 is greater. Accordingly, since the air flowing along the outer periphery of the fan 30 does not converge as well, air turbulence around the outer periphery of the fan 30 is increased.
  • a ratio of a diameter D of the fan 30 to a depth d of the recess 51 of the rear guide 50 may be approximately 0.01 ⁇ d/D ⁇ 0.015. As the diameter D of the fan 30 increases, the space between the outer periphery of the fan 30 and the recess 51 must widen. As a result, the depth of the recess 51 increases. If the ratio d/D is less than approximately 0.01, air turbulence around the outer periphery of the fan 30 increases.
  • the ratio d/D is greater than approximately 0.015, the space between the rear guide 50 and the outer periphery of the fan 30 is greater, which also causes an increase of air turbulence around the outer periphery of the fan 30, due to a lower convergence of air.
  • the extending portion 52 at which the recess 51 is formed may be approximately 0.4 ⁇ d/D ⁇ 0.5.
  • the diameter D of the fan 30 increases, a force of air gradually increases.
  • the thickness of the extending portion 52 must be relatively great in order to prevent vibration of the rear guide 50.
  • the ratio t/ D is less than approximately 0.4, the extending portion 52 of the rear guide 50 vibrates due to the force of the air, which causes air turbulence to increase along the outer periphery of the fan 30.
  • the ratio t/D is more than approximately 0.5, a space between a side surface of the rear guide 50 which faces away from the fan 30, and the outer periphery of the fan 30 is greater.
  • a swirl of air passing through the heat exchanger 20 increases around the side surface of the rear guide 50 which faces away from the fan 30, and air turbulence around the outer periphery of the fan 30 increases due to the swirl movement.
  • the length of the rear guide 50 must be larger. If the ratio L/D is less than approximately 0.14, a portion of air flowing along the outer periphery of the fan 30 does not sufficiently converge to the fan due to the rear guide 50, thereby increasing air turbulence. If the ratio L/D is more than approximately 0.18, the rear guide 50 covers a larger portion of an intake side of the fan, which prevents the air passing through the heat exchanger 20 from flowing to the fan 30, thereby reducing the air blowing capacity of the fan 30.
  • the heat-exchanged air flows along the outer periphery of the fan 30 in a clockwise direction.
  • the air around the outer periphery of the fan 30 flows in a direction of the rear guide 50. Since the recess 51 is inclined, at an angle of approximately 4-6 degrees, relative to a line tangential to a surface of the rear guide 50 at the portion P, the air is converged to the fan 30 due to the recess 51 and then discharged to an outlet side of the fan 30.
  • the stabilizer 40 prevents a portion of air of the outlet side of the fan 30 from flowing toward the heat exchanger 20.
  • the air of the outlet side of the fan 30 is discharged into an indoor space.
  • the air outlet louver 15 can control a direction of the air to be discharged.
  • FIG. 3 is a partial enlarged view of a rear guide of the air conditioner of Fig. 1 in accordance with another embodiment of the present invention.
  • a recess 61 is formed in one side of the rear guide 60 facing the fan 30.
  • the recess 61 increases the space between the surface of the rear guide 60 and the fan 30, which results in lower air turbulence around the outer periphery of the fan 30.
  • a portion of the rear guide 60 in which the recess 61 is formed is referred to herein as an extending portion 62.
  • the recess 61 extends from a portion P of the rear guide 60 which is closest to an outer periphery of the fan 30 to an end of the rear guide 60.
  • the recess 61 is inclined, at an angle of approximately 4-6 degrees, relative to a line tangential to a surface of the rear guide 60 at the portion P.
  • a ratio of a diameter D of the fan 30 to a depth d of the recess 61 of the rear guide 60 may be approximately 0.01 ⁇ d/D ⁇ 0.015.
  • a ratio of the diameter D of the fan 30 to a thickness t of a portion of the rear guide 60 at which the recess 61 is formed may be approximately 0.4 ⁇ t/D ⁇ 0.5.
  • a ratio of the diameter D of the fan 30 to a length L of the recess 61 may be approximately 0.14 ⁇ L/D ⁇ 0.18. Further explanation of the recess 61 is omitted, due to its similarity to the recess 51 described above.
  • a bell mouth portion 63 having a ball shape is formed at an end of the rear guide 60.
  • the bell mouth portion 63 extends in a direction opposite to the fan 30.
  • the bell mouth portion 63 smoothly guides air flowing along the outer periphery of the fan 30 toward the recess 61 of the rear guide 60.

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)

Abstract

Climatiseur comprenant un ventilateur et un guide arrière qui assure le guidage de l'air ver le ventilateur. La surface latérale du guide arrière en face du ventilateur présente un décrochement.
EP08766412A 2007-10-22 2008-06-18 Climatiseur Withdrawn EP2203688A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070106159A KR20090040690A (ko) 2007-10-22 2007-10-22 공기 조화기
PCT/KR2008/003451 WO2009054588A1 (fr) 2007-10-22 2008-06-18 Climatiseur

Publications (2)

Publication Number Publication Date
EP2203688A1 true EP2203688A1 (fr) 2010-07-07
EP2203688A4 EP2203688A4 (fr) 2011-06-29

Family

ID=40563668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08766412A Withdrawn EP2203688A4 (fr) 2007-10-22 2008-06-18 Climatiseur

Country Status (4)

Country Link
US (1) US20090104032A1 (fr)
EP (1) EP2203688A4 (fr)
KR (1) KR20090040690A (fr)
WO (1) WO2009054588A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101608981B1 (ko) * 2007-10-22 2016-04-04 엘지전자 주식회사 공기 조화기
KR101436628B1 (ko) * 2007-10-23 2014-09-02 엘지전자 주식회사 횡류팬 및 공기 조화기
CN103486669B (zh) * 2012-06-13 2016-03-23 珠海格力电器股份有限公司 室内机
JP7038132B2 (ja) * 2018-09-05 2022-03-17 広東美的制冷設備有限公司 壁掛け式エアコン室内機及び壁掛け式エアコン
WO2020047929A1 (fr) * 2018-09-05 2020-03-12 广东美的制冷设备有限公司 Unité intérieure de climatiseur à montage mural, et climatiseur à montage mural

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000009098A (ja) * 1998-06-22 2000-01-11 Pacific Ind Co Ltd 壁掛け式の浴室暖房乾燥機
JP2001124362A (ja) * 1999-10-27 2001-05-11 Matsushita Electric Ind Co Ltd 横断流送風装置
JP2001280647A (ja) * 2000-03-31 2001-10-10 Sanyo Electric Co Ltd 送風機及びそれを用いた空気調和機
EP1243864A2 (fr) * 2001-03-23 2002-09-25 Mitsubishi Heavy Industries, Ltd. Unité intérieure et conditionneur d'air

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1991095A (en) * 1933-10-14 1935-02-12 Westinghouse Electric & Mfg Co Silent pressure fan
US2123146A (en) * 1936-08-07 1938-07-05 Chicago Electric Mfg Co Rubber bladed fan
US2192811A (en) * 1937-07-26 1940-03-05 Casco Products Corp Fan
US2208084A (en) * 1937-12-23 1940-07-16 Ryder Elmer Fan
JP3612917B2 (ja) * 1997-01-16 2005-01-26 松下電器産業株式会社 横断流送風装置
JP3532432B2 (ja) * 1999-01-12 2004-05-31 シャープ株式会社 クロスフローファン及びそれを用いた流体送り装置
JP3695740B2 (ja) * 1999-02-02 2005-09-14 松下電器産業株式会社 空気調和機の室内ユニット
JP3564414B2 (ja) * 2001-03-23 2004-09-08 三菱重工業株式会社 室内機ユニット及び空気調和機
KR100471444B1 (ko) * 2002-08-14 2005-03-08 엘지전자 주식회사 송풍팬
WO2004113732A1 (fr) * 2003-06-18 2004-12-29 Mitsubishi Denki Kabushiki Kaisha Ventilateur
KR100697087B1 (ko) * 2005-06-09 2007-03-20 엘지전자 주식회사 공기조화기
KR100751116B1 (ko) * 2006-05-20 2007-08-22 엘지전자 주식회사 공기 조화기의 실내기
KR100821728B1 (ko) * 2006-08-03 2008-04-11 엘지전자 주식회사 공기 조화 시스템
KR100782195B1 (ko) * 2006-08-10 2007-12-04 엘지전자 주식회사 공기 조화기
KR100826020B1 (ko) * 2006-08-28 2008-04-28 엘지전자 주식회사 공기조화기
KR20080062891A (ko) * 2006-12-29 2008-07-03 엘지전자 주식회사 공기조화기의 팬

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000009098A (ja) * 1998-06-22 2000-01-11 Pacific Ind Co Ltd 壁掛け式の浴室暖房乾燥機
JP2001124362A (ja) * 1999-10-27 2001-05-11 Matsushita Electric Ind Co Ltd 横断流送風装置
JP2001280647A (ja) * 2000-03-31 2001-10-10 Sanyo Electric Co Ltd 送風機及びそれを用いた空気調和機
EP1243864A2 (fr) * 2001-03-23 2002-09-25 Mitsubishi Heavy Industries, Ltd. Unité intérieure et conditionneur d'air

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009054588A1 *

Also Published As

Publication number Publication date
KR20090040690A (ko) 2009-04-27
US20090104032A1 (en) 2009-04-23
EP2203688A4 (fr) 2011-06-29
WO2009054588A1 (fr) 2009-04-30

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