EP2148145B1 - Air conditioning apparatus - Google Patents

Air conditioning apparatus Download PDF

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Publication number
EP2148145B1
EP2148145B1 EP09009564A EP09009564A EP2148145B1 EP 2148145 B1 EP2148145 B1 EP 2148145B1 EP 09009564 A EP09009564 A EP 09009564A EP 09009564 A EP09009564 A EP 09009564A EP 2148145 B1 EP2148145 B1 EP 2148145B1
Authority
EP
European Patent Office
Prior art keywords
air
heat exchanger
outlet
fan
pair
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.)
Not-in-force
Application number
EP09009564A
Other languages
German (de)
French (fr)
Other versions
EP2148145A1 (en
Inventor
Tomohiro Tabata
Yasuhiro Moteki
Mayumi Saito
Toshimitsu Nakajima
Yasunori Oohama
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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
Priority claimed from JP2008191884A external-priority patent/JP2010032068A/en
Priority claimed from JP2008191883A external-priority patent/JP5410047B2/en
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of EP2148145A1 publication Critical patent/EP2148145A1/en
Application granted granted Critical
Publication of EP2148145B1 publication Critical patent/EP2148145B1/en
Not-in-force legal-status Critical Current
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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
    • 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
    • F24F1/0033—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
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • 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
    • F24F1/0053—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted at least partially below the floor; with air distribution below the floor

Definitions

  • the present invention relates to an air conditioning apparatus provided with a heat exchanger and a pair of upper and lower fans in a housing having an inlet and an upper outlet and a lower outlet, wherein the air flowing from the inlet into the housing is heat-exchanged by the heat exchanger, and the heat-exchanged air is blown off from the upper outlet and the lower outlet by the pair of the upper and lower fans.
  • Patent Document 1 Japanese Laid-open Patent Application Laid-open No. 61-59145 , a pair of upper and lower fans are provided in a housing, the air flowing from an inlet into a housing and heat-exchanged by a heat exchanger is blown off from both of an upper outlet and a lower outlet or is blown off from either of them, enabling a plurality of airflow controls.
  • a similar air conditioning apparatus is disclosed in JP 08 178338 , but this air conditioning apparatus further comprises a partition plate having a variable position between the upper and lower fans.
  • the pair of the upper and lower fans each of which has the equal fan diameter, is used.
  • the two fans are provided in the housing, whereby a space for accommodating a coolant pipe which connects indoor equipment and outdoor equipment to each other cannot be provided, and the depth dimension of the housing must be increased.
  • the air conditioning apparatus including a heat exchanger and a pair of upper and lower fans in a housing having an inlet and an upper outlet and a lower outlet, wherein the air flowing from the inlet into the housing is heat-exchanged by the heat exchanger and the heat-exchanged air is blown off from the upper outlet and the lower outlet by the pair of the upper and lower fans.
  • An aspect of the present invention is directed to an air conditioning apparatus, characterised by, in a housing having an inlet, an upper outlet, and a lower outlet, comprising: a heat exchanger; and a pair of upper and lower fans, air flowing from the inlet into the housing being heat-exchanged by the heat exchanger, the heat-exchanged air being blown off from the upper outlet and the lower outlet by the pair of the upper and lower fans, wherein: a fan diameter of the upper fan is set to be greater than a fan diameter of the lower fan; an air trunk guide formed in a cross-sectional elbowed shape, for guiding the air from the heat exchanger to the pair of the upper and lower fans, is provided between the pair of the upper and lower fans; and a bent top portion of the air trunk guide is shifted to a lower side with respect to a center between centers of the pair of the upper and lower fans.
  • a further aspect of the present invention is directed to the air conditioning apparatus according to the above aspect of the invention, characterised in that : a rear lower end of the heat exchanger is positioned forwardly with respect to an extension line of a long-side portion which is upper than a bent top portion of the air trunk guide.
  • a rear lower end of the heat exchanger may be positioned forwardly with respect to an extension line of a long-side portion which is upper than a bent top portion of the air trunk guide, so that, even if the air after heat-exchanged is blown off from only the upper outlet with the lower fan being deactivated, the air is allowed to pass through the entire heat exchanger and efficient air conditioning operation can be performed.
  • the fan diameter of the upper fan is set to be greater than that of the lower fan, whereby the space at the rear of the fan having a smaller fan diameter can be effectively utilized as a space for accommodating a coolant pipe which connects indoor equipment and outdoor equipment to each other or the like.
  • Reference numeral 1 denotes floor-placement indoor equipment constituting an air conditioning apparatus together with outdoor equipment (not shown) as heat-source equipment, and a heat exchanger 3 and a pair of upper and lower cross-flow fans 4, 5 are provided in a housing 2.
  • the fan diameter (diameter) of the upper cross-flow fan 4 is set to be 100 mm; the fan diameter (diameter) of the lower cross-flow fan 5 is set to be 92 mm; and the fan diameter of the cross-flow fan 4 is set to be greater than that of the cross-flow fan 5.
  • the housing 2 is made of a front panel 6 and a main-body casing 7; a front inlet 8, a side inlet 9, an upper outlet 10, and a lower outlet 11 are provided on the front panel 6; and an upper blow-off flap 12 opening at the time of operation is provided at the upper outlet 10.
  • an air filter 14 equipped with an air cleaning filter 13 is removably installed on the front face of the heat exchanger 3, and a drain pan 15 is provided in the downward direction of the heat exchanger 3.
  • a heat insulation material 16 is mounted to the rear part of the main-body casing 7, and inside of this heat insulation material 16, there are arranged: an air trunk guide 17 (formed in an elbowed shape in a cross-sectional view seen laterally) which is positioned between one pair of the upper and lower cross-flow fans 4 and 5; an upper side fan case 18 which is continuous in the upward direction of the air trunk guide 17 and covers the cross-flow fan 4 with predetermined intervals; and a lower side fan case 19 which is continuous in the downward direction of the air trunk guide 17 and covers the cross-flow fan 5 with predetermined intervals.
  • an air trunk guide 17 formed in an elbowed shape in a cross-sectional view seen laterally
  • an upper side fan case 18 which is continuous in the upward direction of the air trunk guide 17 and covers the cross-flow fan 4 with predetermined intervals
  • a lower side fan case 19 which is continuous in the downward direction of the air trunk guide 17 and covers the cross-flow fan 5 with predetermined intervals.
  • an upper-side blow-off passageway 20 is formed between the cross-flow fan 4 and the upper outlet 10; a lower-side blow-off passageway 21 is formed between the cross-flow fan 5 and the lower outlet 11; and an openable shutter unit 22 is provided in the lower-side blow-off passageway 21.
  • the air trunk guide 17 is made up of: a long-side portion 17A extending to a front lower part of an upper side; and a short-side portion 17B bent from the long-side portion 17A and extending to a rear lower part of a lower side.
  • a top portion 17C which is a bent position of the air trunk guide 17 reaches a position shifted to be lower than a vertical central position.
  • this guide is constituted so that: the long-side portion 17A is longer than the short-side portion 17B; the top portion 17C is positioned downwardly of a central position between a center of the cross-flow fan 4 and a center of the cross-flow fan 5; and further, a rear lower end of the heat exchanger 3 is positioned leftwardly (forwardly) with respect to an extension line of the long-side portion 17A indicated by the dashed line; and all of the air after heat-exchanged via the heat exchanger 3 is taken in when only the cross-flow fan 4 operates, so that the air taken in can be fed indoors.
  • the heat exchanger 3 acts as an evaporator (cooler), and in general, a pair of the upper and lower cross-flow fans 4, 5 operates.
  • Indoor air flows from the front inlet 8 and the side inlet 9 into the housing 2, and is cleaned by the air filter 14. Afterwards, the cleaned air is cooled by the heat exchanger 3, and cool air is produced.
  • the cool air is diverted upwardly and downwardly at the air trunk guide 17, and the diverted airflows are guided to the cross-flow fans 4, 5.
  • the guided airflows pass through the upper-side blow-off passageway 20 and the lower-side blow-off passageway 21, and are blown indoors from the upper outlet 10 and the lower outlet 11, respectively.
  • the fan diameter of the upper cross-flow fan 4 is set to be greater than the fan diameter of the lower cross-flow fan 5, thus reducing a degree of pulling of the cool air passing through the heat exchanger 3 by the two cross-flow fans 4, 5.
  • the cool air is flown indoors from the upper outlet 10, mainly by means of the upper cross-flow fan 4. Therefore, a large amount of cool air is guided upwardly indoors, thus allowing efficient indoor cooling, and the airflow inside of the housing 2 is stabilized, thus allowing restraint of the generation of noise.
  • the airflow volume of the blow-off from the lower outlet 11 by the lower cross-flow fan 5 is reduced, whereas the velocity of the airflow can be ensured by downsizing the lower outlet 11, leading to an inability to somesthetically sense a decrease in the volume of the airflow from the lower outlet 11.
  • the top portion 17C of the air trunk guide 17 is shifted downwardly from the central position between the center of the upper cross-flow fan 4 and the center of the lower cross-flow fan 5, and is shifted to the lower side with respect to the center of the air trunk guide 17.
  • the cool air from the heat exchanger 3 can be appropriately distributed in accordance with the blow-off airflow volume from the upper and lower outlets 10, 11, and the cool air passing through the heat exchanger 3 can be smoothly and massively flown to the upper cross-flow fan 4.
  • the cross-flow fan 5 stops, and the lower-side blow-off passageway 21 is closed by the shutter unit 22.
  • the rear lower end of the heat exchanger 3 is positioned leftwardly (forwardly) with respect to the extension line of the long-side portion 17A indicated by the dashed line.
  • a coolant pipe which connects indoor equipment and outdoor equipment to each other is mounted to the heat exchanger 3, whereas a space S at the rear of the cross-flow fan 5 having a smaller fan diameter can be effectively utilized as a space for accommodating the coolant pipe or the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Description

    BACKGROUND OF THE INVENTION Technical Field
  • The present invention relates to an air conditioning apparatus provided with a heat exchanger and a pair of upper and lower fans in a housing having an inlet and an upper outlet and a lower outlet, wherein the air flowing from the inlet into the housing is heat-exchanged by the heat exchanger, and the heat-exchanged air is blown off from the upper outlet and the lower outlet by the pair of the upper and lower fans.
    • Background Art
  • In a conventional air conditioning apparatus of this type, as disclosed in [Patent Document 1] Japanese Laid-open Patent Application Laid-open No. 61-59145 , a pair of upper and lower fans are provided in a housing, the air flowing from an inlet into a housing and heat-exchanged by a heat exchanger is blown off from both of an upper outlet and a lower outlet or is blown off from either of them, enabling a plurality of airflow controls.
  • A similar air conditioning apparatus is disclosed in JP 08 178338 , but this air conditioning apparatus further comprises a partition plate having a variable position between the upper and lower fans.
    • DISCLOSURE OF THE INVENTION Problem(s) to Be Solved by the Invention
  • However, in the conventional air conditioning apparatus described above, there has been a problem that: the pair of the upper and lower fans pulls the air that is heat-exchanged by the heat exchanger from both sides; the airflow is disturbed; and the airflow volume of the air from the two upper and lower outlets is not only unstable, but also the noise due to the disturbance of the airflow in the housing increases.
  • These problems are reduced in the air conditioning apparatus according to JP 08 178338 mentioned above, however, the partition plate is not formed in a particular aerodynamic way.
  • In addition, in the air conditioning apparatuses described above, the pair of the upper and lower fans, each of which has the equal fan diameter, is used. Thus, there has been a problem that the two fans are provided in the housing, whereby a space for accommodating a coolant pipe which connects indoor equipment and outdoor equipment to each other cannot be provided, and the depth dimension of the housing must be increased.
  • Therefore, it is a first object of the present invention to prevent disturbance of airflow of the air that is heat-exchanged by the heat exchanger, whereby the airflow volume of the air from the two upper and lower outlets is appropriately distributed, stabilizing the airflow volume and restraining the generation of noise.
  • Further, it is a second object of the present invention to allow the airflow volume of the air from the two upper and lower outlets to be appropriately distributed, effectively utilizing a space at a rear part of the housing, in the air conditioning apparatus including a heat exchanger and a pair of upper and lower fans in a housing having an inlet and an upper outlet and a lower outlet, wherein the air flowing from the inlet into the housing is heat-exchanged by the heat exchanger and the heat-exchanged air is blown off from the upper outlet and the lower outlet by the pair of the upper and lower fans.
    • SUMMARY OF THE INVENTION Means for Solving the Problem(s)
  • An aspect of the present invention is directed to an air conditioning apparatus, characterised by, in a housing having an inlet, an upper outlet, and a lower outlet, comprising: a heat exchanger; and a pair of upper and lower fans, air flowing from the inlet into the housing being heat-exchanged by the heat exchanger, the heat-exchanged air being blown off from the upper outlet and the lower outlet by the pair of the upper and lower fans, wherein: a fan diameter of the upper fan is set to be greater than a fan diameter of the lower fan; an air trunk guide formed in a cross-sectional elbowed shape, for guiding the air from the heat exchanger to the pair of the upper and lower fans, is provided between the pair of the upper and lower fans; and a bent top portion of the air trunk guide is shifted to a lower side with respect to a center between centers of the pair of the upper and lower fans.
  • A further aspect of the present invention is directed to the air conditioning apparatus according to the above aspect of the invention, characterised in that: a rear lower end of the heat exchanger is positioned forwardly with respect to an extension line of a long-side portion which is upper than a bent top portion of the air trunk guide.
    • Advantageous Effect(s) of the Invention
  • According to the aspects of the invention, the disturbance of the airflow of the air that is heat-exchanged by the heat exchanger is prevented, and the airflow volume of the air from the two upper and lower outlets is appropriately distributed, allowing stabilization of the airflow volume and restraint of the generation of noise. Further, according to an aspect of the present invention, a rear lower end of the heat exchanger may be positioned forwardly with respect to an extension line of a long-side portion which is upper than a bent top portion of the air trunk guide, so that, even if the air after heat-exchanged is blown off from only the upper outlet with the lower fan being deactivated, the air is allowed to pass through the entire heat exchanger and efficient air conditioning operation can be performed.
  • In addition, according to an aspect of the invention, the fan diameter of the upper fan is set to be greater than that of the lower fan, whereby the space at the rear of the fan having a smaller fan diameter can be effectively utilized as a space for accommodating a coolant pipe which connects indoor equipment and outdoor equipment to each other or the like.
    • BRIEF DESCRIPTION OF THE DRAWINGS
    • FIG. 1 is a longitudinal cross-sectional view of an air conditioning apparatus.
    • FIG. 2 is a perspective view of the same apparatus.
    • FIG. 3 is an enlarged cross-sectional view of essential parts of FIG. 1.
    DESCRIPTION OF THE SPECIFIC EMBODIMENTS
  • Hereinafter, the specific embodiments of the present invention will be described, referring to FIGS. 1 to 3. Reference numeral 1 denotes floor-placement indoor equipment constituting an air conditioning apparatus together with outdoor equipment (not shown) as heat-source equipment, and a heat exchanger 3 and a pair of upper and lower cross-flow fans 4, 5 are provided in a housing 2. The fan diameter (diameter) of the upper cross-flow fan 4 is set to be 100 mm; the fan diameter (diameter) of the lower cross-flow fan 5 is set to be 92 mm; and the fan diameter of the cross-flow fan 4 is set to be greater than that of the cross-flow fan 5.
  • The housing 2 is made of a front panel 6 and a main-body casing 7; a front inlet 8, a side inlet 9, an upper outlet 10, and a lower outlet 11 are provided on the front panel 6; and an upper blow-off flap 12 opening at the time of operation is provided at the upper outlet 10. In addition, an air filter 14 equipped with an air cleaning filter 13 is removably installed on the front face of the heat exchanger 3, and a drain pan 15 is provided in the downward direction of the heat exchanger 3.
  • A heat insulation material 16 is mounted to the rear part of the main-body casing 7, and inside of this heat insulation material 16, there are arranged: an air trunk guide 17 (formed in an elbowed shape in a cross-sectional view seen laterally) which is positioned between one pair of the upper and lower cross-flow fans 4 and 5; an upper side fan case 18 which is continuous in the upward direction of the air trunk guide 17 and covers the cross-flow fan 4 with predetermined intervals; and a lower side fan case 19 which is continuous in the downward direction of the air trunk guide 17 and covers the cross-flow fan 5 with predetermined intervals.
  • In addition, an upper-side blow-off passageway 20 is formed between the cross-flow fan 4 and the upper outlet 10; a lower-side blow-off passageway 21 is formed between the cross-flow fan 5 and the lower outlet 11; and an openable shutter unit 22 is provided in the lower-side blow-off passageway 21.
  • The air trunk guide 17 is made up of: a long-side portion 17A extending to a front lower part of an upper side; and a short-side portion 17B bent from the long-side portion 17A and extending to a rear lower part of a lower side. A top portion 17C which is a bent position of the air trunk guide 17 reaches a position shifted to be lower than a vertical central position. In other words, this guide is constituted so that: the long-side portion 17A is longer than the short-side portion 17B; the top portion 17C is positioned downwardly of a central position between a center of the cross-flow fan 4 and a center of the cross-flow fan 5; and further, a rear lower end of the heat exchanger 3 is positioned leftwardly (forwardly) with respect to an extension line of the long-side portion 17A indicated by the dashed line; and all of the air after heat-exchanged via the heat exchanger 3 is taken in when only the cross-flow fan 4 operates, so that the air taken in can be fed indoors.
  • In the indoor equipment 1 of the thus constituted air conditioning apparatus, during cooling operation, the heat exchanger 3 acts as an evaporator (cooler), and in general, a pair of the upper and lower cross-flow fans 4, 5 operates. Indoor air flows from the front inlet 8 and the side inlet 9 into the housing 2, and is cleaned by the air filter 14. Afterwards, the cleaned air is cooled by the heat exchanger 3, and cool air is produced. The cool air is diverted upwardly and downwardly at the air trunk guide 17, and the diverted airflows are guided to the cross-flow fans 4, 5. The guided airflows pass through the upper-side blow-off passageway 20 and the lower-side blow-off passageway 21, and are blown indoors from the upper outlet 10 and the lower outlet 11, respectively.
  • The fan diameter of the upper cross-flow fan 4 is set to be greater than the fan diameter of the lower cross-flow fan 5, thus reducing a degree of pulling of the cool air passing through the heat exchanger 3 by the two cross-flow fans 4, 5. The cool air is flown indoors from the upper outlet 10, mainly by means of the upper cross-flow fan 4. Therefore, a large amount of cool air is guided upwardly indoors, thus allowing efficient indoor cooling, and the airflow inside of the housing 2 is stabilized, thus allowing restraint of the generation of noise. Further, the airflow volume of the blow-off from the lower outlet 11 by the lower cross-flow fan 5 is reduced, whereas the velocity of the airflow can be ensured by downsizing the lower outlet 11, leading to an inability to somesthetically sense a decrease in the volume of the airflow from the lower outlet 11.
  • Moreover, the top portion 17C of the air trunk guide 17 is shifted downwardly from the central position between the center of the upper cross-flow fan 4 and the center of the lower cross-flow fan 5, and is shifted to the lower side with respect to the center of the air trunk guide 17. Hence, the cool air from the heat exchanger 3 can be appropriately distributed in accordance with the blow-off airflow volume from the upper and lower outlets 10, 11, and the cool air passing through the heat exchanger 3 can be smoothly and massively flown to the upper cross-flow fan 4.
  • In a case where a user has selected cool air blow-off from only the upper outlet 10, the cross-flow fan 5 stops, and the lower-side blow-off passageway 21 is closed by the shutter unit 22. At this time, the rear lower end of the heat exchanger 3 is positioned leftwardly (forwardly) with respect to the extension line of the long-side portion 17A indicated by the dashed line. Thus, even if the cool air is blown off indoors from only the upper outlet 10, the air is allowed to pass through the entire heat exchanger 3, whereby all of the air after heat-exchanged via the heat exchanger 3 can be taken in and blown off; efficient cooling operation can be performed; cool air leakage from the lower outlet 11 is eliminated by the shutter unit 22; and more effective cooling operation can be performed.
  • Moreover, a coolant pipe which connects indoor equipment and outdoor equipment to each other is mounted to the heat exchanger 3, whereas a space S at the rear of the cross-flow fan 5 having a smaller fan diameter can be effectively utilized as a space for accommodating the coolant pipe or the like.
  • While the specific embodiments of the present invention have been described, various exemplary alternations, corrections, or modifications can occur to one skilled in the art, based upon the above description.
    • Description of Reference Numerals
    • 1
    Indoor equipment (air conditioning apparatus)
    2
    Housing
    3
    Heat exchanger
    4
    Upper cross-flow fan
    5
    Lower cross-flow fan
    8
    Front inlet
    9
    Side inlet
    10
    Upper outlet
    11
    Lower outlet
    17
    Air trunk guide
    17A
    Long-side portion
    17C
    Top portion
    22
    Shutter unit

Claims (2)

  1. An air conditioning apparatus comprising in a housing (2) having an inlet (8, 9), an upper outlet (10), and a lower outlet (11):
    a heat exchanger (3); and
    a pair of upper and lower fans (4, 5), air flowing from the inlet (8, 9) into the housing (2) being heat-exchanged by the heat exchanger (3), the heat-exchanged air being blown off from the upper outlet (10) and the lower outlet (11) by the pair of the upper and lower fans (4, 5),
    characterized in that a fan diameter of the upper fan (4) is set to be greater than a fan diameter of the lower fan (5); an air trunk guide (17) formed in a cross-sectional elbowed shape, for guiding the air from the heat exchanger (3) to the pair of the upper and lower fans (4, 5), is provided between the pair of the upper and lower fans (4, 5); and a bent top portion of the air trunk guide (17) is shifted to a lower side with respect to a center between centers of the pair of the upper and lower fans (4, 5).
  2. The air conditioning apparatus according to claim 1, characterised in that:
    a rear lower end of the heat exchanger (3) is positioned forwardly with respect to an extension line of a long-side portion which is upper than a bent top portion of the air trunk guide (17).
EP09009564A 2008-07-25 2009-07-23 Air conditioning apparatus Not-in-force EP2148145B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008191884A JP2010032068A (en) 2008-07-25 2008-07-25 Air conditioner
JP2008191883A JP5410047B2 (en) 2008-07-25 2008-07-25 Air conditioner

Publications (2)

Publication Number Publication Date
EP2148145A1 EP2148145A1 (en) 2010-01-27
EP2148145B1 true EP2148145B1 (en) 2013-03-20

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CN104110812B (en) * 2014-03-31 2017-03-22 美的集团股份有限公司 Air conditioner duct structure and vertical air conditioner
CN104296351B (en) * 2014-09-28 2017-05-10 美的集团武汉制冷设备有限公司 Air conditioner
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CN105352153A (en) * 2015-12-01 2016-02-24 珠海格力电器股份有限公司 Air guide structure and cabinet air conditioner with same
CN106556066A (en) * 2016-11-29 2017-04-05 海信（山东）空调有限公司 A kind of wall-hanging air conditioner
CN108916993A (en) * 2018-06-13 2018-11-30 海信（山东）空调有限公司 Air conditioner and air conditioning control method
CN108870540B (en) * 2018-07-05 2019-12-03 珠海格力电器股份有限公司 Multi-air-port air conditioner
CN110160144B (en) * 2019-06-25 2024-07-16 宁波奥克斯电气股份有限公司 Air duct assembly and air conditioner

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KR100644544B1 (en) * 2005-10-28 2006-11-10 엘지전자 주식회사 Air conditioner
EP1953461A1 (en) * 2007-01-26 2008-08-06 LG Electronics Inc. Indoor unit of an air conditioner with moving front panels to suck air from a front and discharge air vertically

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