EP1617154A2 - Lüfter und Klimaanlage - Google Patents

Lüfter und Klimaanlage Download PDF

Info

Publication number
EP1617154A2
EP1617154A2 EP05250099A EP05250099A EP1617154A2 EP 1617154 A2 EP1617154 A2 EP 1617154A2 EP 05250099 A EP05250099 A EP 05250099A EP 05250099 A EP05250099 A EP 05250099A EP 1617154 A2 EP1617154 A2 EP 1617154A2
Authority
EP
European Patent Office
Prior art keywords
blowing
fan
cross flow
flow fan
air
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Withdrawn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
EP05250099A
Other languages
English (en)
French (fr)
Other versions
EP1617154A3 (de
Inventor
Seon Uk Na
Seok Tae Yoon
Jun Hwa Lee
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1617154A2 publication Critical patent/EP1617154A2/de
Publication of EP1617154A3 publication Critical patent/EP1617154A3/de
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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
    • F04D17/025—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal comprising axial flow and radial flow stages
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • 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
    • 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
    • F24F1/0029—Axial fans
    • 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
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • 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
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow

Definitions

  • the present invention relates to a fan assembly comprising a rotatably mounted cross-flow fan for blowing air in a direction substantially perpendicular to the axis of rotation of the cross-flow fan.
  • Air conditioners are known and are generally used for maintaining the temperature, humidity and cleanliness of the air within an enclosed space.
  • the air conditioner mainly serves to constantly maintain a specified environmental state of an enclosed space, for example cooling a room in summer and heating a room in winter.
  • An air conditioner is usually comprised of two units, one installed outdoors and another installed indoors.
  • Japanese patent No. 2001-201078 discloses an indoor unit of a conventional air conditioner. As shown in Figure 2, such an indoor unit comprises a heat exchanger (not shown) installed in a housing 2, and a blowing device for assisting heat exchange between the heat exchanger (not shown) and the surrounding air.
  • the blowing device includes a motor 5 and a cross flow fan 4 rotated by the motor, and an air inlet 4a and outlet 4b which are formed through the housing 2 for the intake and exhaust of the air from, and to, the surrounding environment respectively.
  • the cross flow fan 4 rotates so that air is inhaled into the unit in a direction perpendicular to a rotary shaft of the cross flow fan 4 through the inlet 4a and is subsequently discharged from the unit through the outlet 4b.
  • Figure 1 illustrates another conventional indoor unit of an air conditioner.
  • the flow velocity of air blown from a region towards each end of the cross flow fan 4 is low whereas the flow velocity and flow rate of air passing through the central portion of the cross flow fan 4 between the end regions is much higher.
  • the cross flow fan 4 of the above conventional air conditioner has the disadvantage that air inversely flows back towards each ends of the cross flow fan 4 which results in the generation of noise.
  • the indoor unit 1 of the air conditioner has been developed in which backflow prevention panels 6 are installed at each ends of the outlet 4b to prevent backflow of air and reduce the noise generated.
  • backflow prevention panels 6 have the disadvantage that they reduce the utility of space within the air conditioning unit and increase its overall size.
  • the cross flow fan 4 As the backflow prevention panels 6 reduce the width of the outlet 4b, to obtain a designated width for the outlet 4b, the cross flow fan 4, as shown in Figure 2, must be proportionally larger than that of the cross flow fan which is not provided with backflow prevention panels 6 as shown in Figure 4. Accordingly, a cross flow fan 4 with backflow prevention panels 6 requires the motor 5 to supply a greater rotary force, thereby increasing production and maintenance costs.
  • the present invention seeks to provide a system which overcomes or substantially alleviates the problems discussed above.
  • a fan assembly according to the present invention is characterised by blowing members associated with the cross flow fan operable to blow air in an axial direction towards each end of the cross flow fan.
  • the fan assembly comprises a pair of blowing members, each blowing member being disposed within the cross flow fan spaced from either end thereof.
  • each blowing member comprises an axial flow fan mounted coaxially with the cross flow fan.
  • the cross flow fan may include support plates having a flat disk-shaped structure provided with an opening, and vanes installed on the surface of each of the support plates in a radial manner.
  • Each of the blowing members may preferably be installed in the opening.
  • an air conditioner having an indoor unit 10 in accordance with the present invention comprising a heat exchanger 12 installed in a space formed by a front panel 11 a and a rear panel 11 b.
  • the heat exchanger 12 exchanges heat between the air and a refrigerant circulating according to a refrigerating cycle.
  • a blowing device for assisting the above heat exchange includes a blowing fan 20 and a motor 14.
  • a filter 18 and a suction grill 17 are installed on the front surface of the front panel 11a, and an outlet 15 is formed through the lower part of the front panel 11a. Accordingly, when the blowing device is driven, air, inhaled into the indoor unit 10 through the suction grill 17, passes through the heat exchanger 12 and the blowing fan 20, and is then discharged through the outlet 15.
  • the blowing fan 20 encompasses a cross flow fan, the direction of rotation being perpendicular to the direction in which air is blown.
  • a plurality of vanes 25 are disposed in a radial manner about the rotary shaft of the blowing fan 20.
  • a plurality of support plates 21 for supporting the vanes 25 are disposed in a longitudinal direction along the rotary shaft.
  • End support plates 22 are respectively installed on both ends of the blowing fan 20.
  • a circular opening 21a is formed through the central portion of each of the support plates 21, but the circular opening 21a is not formed through each of the end support plates 22.
  • the rotary shaft accommodated by a bushing or connected to the motor 14, is installed on the end support plates 22.
  • Axial flow fans 27 are respectively installed on the support plates 21 next to both end support plates 22. When the blowing fan 20 is rotated by the motor 14, the axial flow fans 27 push air toward both ends of the blowing fan 20.
  • the blowing fan 20 is produced by connecting a plurality of impeller units 23a and 23b in series.
  • the first impeller unit 23a as shown in Figure 5, includes the disk-shaped support plate 21 provided with the opening 21a formed through the central portion thereof, and a plurality of the vanes 25 disposed in the radial manner on the surface of the support plate 21 about the rotary shaft.
  • the second impeller unit 23b as shown in Figure 6, the end of the axial flow fan 27 is attached to the edge of the opening 21a of the support plate 21.
  • the first impeller units 23a and the second impeller units 23b are disposed in series, and are then connected by, but not limited to, a method such as ultrasonic welding.
  • blowing fan 20 As described above, in accordance with the present invention, is rotated by driving the motor 14, as shown in Figure 4, air is discharged in a direction perpendicular to the rotary shaft by the vanes 25. Since the axial flow fans 27 push the air toward both ends of the blowing fan 20, the blowing fan 20, which includes the axial flow fans 27, allows the air discharged toward both ends of the blowing fan 20 to have a flow velocity and flow rate higher than that of a blowing fan, which does not include the axial flow fan and so a more even distribution of flow velocity across the width of the cross flow fan is achieved.
  • Figure 7 is a graph illustrating the effects of the axial flow fan 27.
  • the horizontal axis of the graph represents the variation of flow velocity of the air passing through individual points along the length of the outlet 15, wherein one end of the outlet 15 is set to the starting point and the other end of the outlet 15 is set to point 100.
  • the curve expressed by a solid line represents the distribution of flow velocity of the air of the blowing fan in which the axial flow fan 27 is not installed
  • the curve expressed by a dotted line represents the distribution of flow velocity of the air of the blowing fan 20 of the present invention in which the axial flow fans 27 are installed to push air towards both ends of the blowing fan 20.
  • the central portion of the curve expressed by the dotted line has a flow velocity lower than that of the central portion of the curve expressed by the solid line, but the end portions of the curve expressed by the dotted line have a flow velocity higher than that of the end portions of the curve expressed by the solid line.
  • the mean flow velocity of the air of the curve expressed by the dotted line representing the distribution of flow velocity of the air of the blowing fan 20 of the present invention in which the axial flow fans 27 are installed is higher than that of the curve expressed by the solid line representing the distribution of flow velocity of the air of the blowing fan in which the axial flow fan 27 is not installed by 5.4%.
  • the present invention provides a blowing fan, which prevents noise and back flow of air without an additional structure installed outside the blowing fan and without increasing its overall size.
  • blowing fan of the present invention prevents the width of an outlet from being reduced such as by the presence of a backflow prevention panel, and therefore does not require a comparative increase in the size of the fan to enable a similar performance thereby preventing the increase of production costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
EP05250099A 2004-07-14 2005-01-11 Lüfter und Klimaanlage Withdrawn EP1617154A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040054836A KR20060005850A (ko) 2004-07-14 2004-07-14 송풍팬 및 이를 포함하는 공기조화기

Publications (2)

Publication Number Publication Date
EP1617154A2 true EP1617154A2 (de) 2006-01-18
EP1617154A3 EP1617154A3 (de) 2010-08-04

Family

ID=34980246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05250099A Withdrawn EP1617154A3 (de) 2004-07-14 2005-01-11 Lüfter und Klimaanlage

Country Status (3)

Country Link
EP (1) EP1617154A3 (de)
KR (1) KR20060005850A (de)
CN (1) CN1721772A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2280175A4 (de) * 2008-05-09 2017-05-24 Daikin Industries, Ltd. Querstromlüfter und klimaanlage damit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102147130A (zh) * 2011-04-18 2011-08-10 广东美的制冷设备有限公司 双贯流空调器室内机
JP5369141B2 (ja) * 2011-06-10 2013-12-18 三菱電機株式会社 空気調和機
CN109538514A (zh) * 2019-01-21 2019-03-29 湖北工程职业学院 一种减震降噪的横流风机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1462557A (en) * 1922-01-24 1923-07-24 Jr Charles A Kuenzel Blower or suction fan
GB671607A (en) * 1950-05-05 1952-05-07 Davidson & Co Ltd Improvements in or relating to multi-stage fans, pumps and the like
US6189332B1 (en) * 1997-12-22 2001-02-20 Matsushita Electric Industrial Co., Ltd. Air conditioner and its manufacturing method
JP2001201078A (ja) * 2000-01-19 2001-07-27 Mitsubishi Heavy Ind Ltd 室内ユニット及び空気調和機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1462557A (en) * 1922-01-24 1923-07-24 Jr Charles A Kuenzel Blower or suction fan
GB671607A (en) * 1950-05-05 1952-05-07 Davidson & Co Ltd Improvements in or relating to multi-stage fans, pumps and the like
US6189332B1 (en) * 1997-12-22 2001-02-20 Matsushita Electric Industrial Co., Ltd. Air conditioner and its manufacturing method
JP2001201078A (ja) * 2000-01-19 2001-07-27 Mitsubishi Heavy Ind Ltd 室内ユニット及び空気調和機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2280175A4 (de) * 2008-05-09 2017-05-24 Daikin Industries, Ltd. Querstromlüfter und klimaanlage damit

Also Published As

Publication number Publication date
CN1721772A (zh) 2006-01-18
EP1617154A3 (de) 2010-08-04
KR20060005850A (ko) 2006-01-18

Similar Documents

Publication Publication Date Title
US7604043B2 (en) Air conditioner
CN107923413B (zh) 送风机以及空气调节装置
US20060053824A1 (en) Air Conditioner
JP3327082B2 (ja) 一体型空気調和機
EP1617154A2 (de) Lüfter und Klimaanlage
JPH10196989A (ja) 空気調和機
JPH09145143A (ja) 天井埋込型空気調和機の室内ユニット
KR20070000898A (ko) 액자형 공기조화기용 실내기
KR101901303B1 (ko) 공기조화기
KR100784841B1 (ko) 투인원 초슬림 공기조화기 및 이의 제어방법
CN210128426U (zh) 落地式空调室内机及空调器
US5916255A (en) Outdoor unit of a separate type air conditioner
JP3530044B2 (ja) 横流ファン及びそれを用いた流体送り装置
JPWO2019123743A1 (ja) 空気調和機の室内機
KR100261478B1 (ko) 분리형 공기조화기의 실내기
WO2023223383A1 (ja) クロスフローファン、送風装置及び冷凍サイクル装置
CN210688515U (zh) 空调室外机和空调器
CN219036832U (zh) 壁挂式空调室内机
KR100371317B1 (ko) 분리형 공기조화기의 실내기
CN210688516U (zh) 空调室外机和空调器
KR100335082B1 (ko) 창문형 에어컨의 실외기
WO2023157289A1 (ja) クロスフローファン
KR100217130B1 (ko) 공조용 송풍장치
KR101225970B1 (ko) 팬
CN1707175B (zh) 窗式空调器的空气导流装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100801