EP2902632B1 - Klimaanlage - Google Patents

Klimaanlage Download PDF

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Publication number
EP2902632B1
EP2902632B1 EP13841557.5A EP13841557A EP2902632B1 EP 2902632 B1 EP2902632 B1 EP 2902632B1 EP 13841557 A EP13841557 A EP 13841557A EP 2902632 B1 EP2902632 B1 EP 2902632B1
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EP
European Patent Office
Prior art keywords
level
fan
portions
difference
axial direction
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.)
Active
Application number
EP13841557.5A
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English (en)
French (fr)
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EP2902632A4 (de
EP2902632A1 (de
Inventor
Masafumi UDA
Satoshi Nakai
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
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Filing date
Publication date
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Publication of EP2902632A1 publication Critical patent/EP2902632A1/de
Publication of EP2902632A4 publication Critical patent/EP2902632A4/de
Application granted granted Critical
Publication of EP2902632B1 publication Critical patent/EP2902632B1/de
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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
    • 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
    • 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
    • F04D29/665—Sound attenuation by means of resonance chambers or interference
    • 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
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • 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
    • 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 including a cross flow fan.
  • a cross flow fan is a blower which extends in the axial direction and includes a plurality of vanes lined up in the rotational direction.
  • a front tongue portion (stabilizer) and a rear tongue portion (rear guider) are provided to oppose the outer periphery of the fan, respectively.
  • These tongue portions form an air passage on the blow-out side of the fan.
  • Each tongue portion is closest to the fan at and around the leading end. Between the leading end portion of each tongue portion and the fan, a vortex airflow is generated.
  • wind noise NZ noise
  • JP H02 203129 A teaches that level-difference portions are provided at the leading end of the front tongue portion (stabilizer) to vary the height of the leading end along the axial direction.
  • the front tongue portion is closest to the fan at the leading end.
  • Each level-difference portion extends in a direction orthogonal to the axial direction, and the leading end of a part between neighboring level-difference portions is deviated from the axial direction of the fan in the rotational direction.
  • the airflow changes its direction toward that level-difference portion 91a and climbs over the level-difference portion 91a.
  • the air flows into a bended portion of the vortex airflow in a concentrated manner, with the result that the vortex airflow is disturbed and the wind noise increases.
  • level differences are provided at the leading end of the rear tongue portion.
  • JP H11 304178 A discloses a transverse fan air blower including a transverse fan which is comprised of a large number of unit fans arrnaged in a row, a motor which affords a driving force of the transverse fan, a rear guide which provides a passage of air blown off by the transverse fan, and a stabilizer which is disposed in front of the transverse fan and is provided with a semicircular facing portion defining a proper gap with the outer peripheral surface of the transverse fan and stabilizes a vortex generated at the time of rotating the transverse fan.
  • a rib is formed on the facing portion of the stabilizer and such a rib changes the top thereof such that the position of the top is continuously and regularly changed along an axial direction of the transverse fan at the time of rotating the transverse fan while always maintaining the proper gap with the outer peripheral surface of the transverse fan thus dispersing the noise generating point of time.
  • JP H01 167494 A discloses a cross flow fan including a nose part provided close to a peripheral side face of a fan body and an inner wall of a casing form a discharge opening for air.
  • a projecting part is provided on inner corner portion of the nose part for the purpose of making a gap between the fan body and the nose part small.
  • a vane fixing position of vortex, guiding vortex going toward the discharge opening and recovering static pressure is provided still more on the projecting part toward tangential direction on the bottom end of the fan body.
  • An object of the present invention is to provide an air conditioner in which wind noise is suppressed by restraining the disturbance of a vortex airflow.
  • an air conditioner includes: a cross flow fan; and a stabilizer and a rear guider which are provided on respective sides of an outer periphery of the cross flow fan to form an air passage, at least one of the stabilizer and the rear guider having, at a leading end portion, level-difference portions which are lined up in an axial direction and include first level-difference portions each of which decreases in height toward a central part in the axial direction of the fan; a bulging portion being formed in the vicinity of at least one of the first level-difference portions on a surface of the at least one of the stabilizer and the rear guider which surface is opposite to the cross flow fan.
  • At least one of the stabilizer and the rear guider has a bulging portion which bulges in shape as compared to its surroundings and is bulging away from the fan, in the vicinity of the first level-difference portion which decreases in height toward the central part of the fan. For this reason, the airflow sucked into the fan is unlikely to climb over the bulging portion. As such, the flowing of the air in a concentrated manner into the bended portion of the vortex airflow generated between each of the first level-difference portions and the fan is restrained, and hence the disturbance of the vortex airflow is restrained. As a result, the wind noise is suppressed.
  • the level-difference portions are provided at the leading end portion of at least one of the stabilizer and the rear guider, it is possible to cause the vane of the fan to pass the end portions in the axial direction of the level-difference portion at different timings or to cause the vane not to pass the part between the level-difference portions at once, as the height of this part between the level-difference portions is gradually changed in the axial direction. As such, the wind noise is suppressed by differentiating the timings of the generation of the wind noise in this way.
  • the air conditioner of the first aspect is arranged such that the bulging portion is formed along the first level-difference portion.
  • the air conditioner of the first or second aspect is arranged such that the bulging portion is provided in the vicinity of a first level-difference portion which is farthest in the axial direction from the central part of the fan, among the first level-difference portions.
  • the air conditioner of any one of the first to third aspects is arranged such that at least one of the stabilizer and the rear guider further includes one or more bulging portion, and the two or more bulging portions are arranged such that, the farther a bulging portion is from the central part of the fan in the axial direction, the higher the bulging height of the bulging portion is.
  • the air conditioner of any one of the first to fourth aspects is arranged such that each of the first level-difference portions extends linearly or in a curved manner from a highest point to a lowest point.
  • the first level-difference portions are easily formed because the first level-difference portions extend linearly or in a curved manner across the entirety in the axial direction.
  • the air conditioner of any one of the first to fourth aspects is arranged such that the height of each of the first level-difference portions changes in stages.
  • each first level-difference portion changes in height in stages, the inclination of the first level-difference portion is adjustable irrespective of the length in the axial direction of the first level-difference portion.
  • the air conditioner of any one of the first to sixth aspects is arranged such that two first level-difference portions among the first level-difference portions are provided to neighbor each other, and the height of a part between the two neighboring level-difference portions gradually changes in the axial direction.
  • the air conditioner of any one of the first to sixth aspects is arranged such that, a level-difference portion which increases in height toward the central part of the fan in the axial direction is provided in the vicinity of one of the first level-difference portions, and the height of a part between the two neighboring level-difference portions is constant in the axial direction.
  • the stabilizer or the rear guider can be easily formed.
  • the air conditioner of any one of the first to eighth aspects is arranged such that the level-difference portions include second level-difference portions each of which increases in height toward the central part of the fan in the axial direction, and in the at least one of the stabilizer and the rear guider, no bulging portion is formed in the vicinity of the second level-difference portions on the surface of the at least one of the stabilizer and the rear guider which surface is opposite to the cross flow fan.
  • each second level-difference portion increases in height toward the central part of the fan, the airflow sucked into the fan does not change its direction toward the second level-difference portion. It is therefore unnecessary to provide a bulging portion in the vicinity of the second level-difference portion.
  • a bulging portion is provided in the vicinity of each of all the level-difference portions, air-blowing resistance is high and the air-blowing capability may be deteriorated.
  • the present embodiment because no bulging portion is provided in the vicinity of each of the second level-difference portions, the deterioration of the air-blowing capability is prevented.
  • At least one of the stabilizer and the rear guider has a bulging portion which bulges in shape as compared to its surroundings and is bulging away from the fan, in the vicinity of the first level-difference portion which decreases in height toward the central part of the fan. For this reason, the airflow sucked into the fan is unlikely to climb over the bulging portion. As such, the flowing of the air in a concentrated manner into the bended portion of the vortex airflow generated between each of the first level-difference portions and the fan is restrained, and hence the disturbance of the vortex airflow is restrained. As a result, the wind noise is suppressed.
  • the level-difference portions are provided at the leading end portion of at least one of the stabilizer and the rear guider, it is possible to cause the vane of the fan to pass the end portions in the axial direction of the level-difference portion at different timings or causes the vane not to pass the part between the level-difference portions at once, as the height of this part between the level-difference portions is gradually changed in the axial direction. As such, the wind noise is suppressed by differentiating the timings of the generation of the wind noise in this way.
  • the bulging portion is formed along the first level-difference portions, it is possible to restrain the airflow sucked into the fan from climbing over the first level-difference portions. With this, it is possible to further certainly restrain the flowing of the air into the bended portion of the vortex airflow in a concentrated manner.
  • the disturbance of the vortex airflow is further certainly suppressed when the bulging portion is provided in the vicinity of the first level-difference portion farthest from the central part of the fan in the axial direction.
  • the disturbance of the vortex airflow is further certainly suppressed when the farther a bulging portion is from the central part of the fan in the axial direction, the higher the bulging height of the bulging portion is.
  • the first level-difference portions are easily formed because the first level-difference portions extend linearly or in a curved manner across the entirety in the axial direction.
  • each first level-difference portion changes in height in stages
  • the inclination of the first level-difference portion is adjustable irrespective of the length in the axial direction of the first level-difference portion.
  • the vane because the height of the part between neighboring ones of the level-difference portions gradually changes in the axial direction, the vane does not pass across that part between neighboring ones of the level-difference portions at once. For this reason, when the vane passes across the part between the level-difference portions, wind noise is continuously generated, and hence the wind noise is suppressed.
  • the stabilizer or the rear guider can be easily formed.
  • each second level-difference portion increases in height toward the central part of the fan, the airflow sucked into the fan does not change its direction toward the second level-difference portion. It is therefore unnecessary to provide a bulging portion in the vicinity of the second level-difference portion.
  • a bulging portion is provided in the vicinity of each of all the level-difference portions, air-blowing resistance is high and the air-blowing capability may be deteriorated.
  • the present embodiment because no bulging portion is provided in the vicinity of each of the level-difference portions, the deterioration of the air-blowing capability is prevented.
  • an indoor unit 1 of an air conditioner of the present embodiment is as a whole narrow and long in one direction in shape, and is attached to a wall of a room so that the length of the air conditioner is horizontal.
  • the indoor unit 1 and an unillustrated outdoor unit constitute the air conditioner which cools or warms the room.
  • a direction of protrusion from the wall to which the indoor unit 1 is attached will be referred to as "frontward”
  • the direction opposite to the frontward will be referred to as "backward”.
  • the left-right direction in FIG. 1 will be simply referred to as "left-right direction”.
  • the indoor unit 1 includes a casing 2 and internal devices stored in the casing 2 such as a heat exchanger 3, a cross flow fan 10, a filter 4, and an electronic component box (not illustrated).
  • a heat exchanger 3 Through the upper surface of the casing 2 is formed an inlet port 2a, whereas through the lower surface of the casing 2 is formed an outlet port 2b.
  • a horizontal flap 5 is provided for adjusting the wind direction in the up-down direction and for opening and closing the outlet port 2b.
  • the cross flow fan 10 (hereinafter, this will be simply referred to as a fan 10) is disposed so that its axial direction is in parallel to the left-right direction. This fan 10 rotates in the direction indicated by the arrow in FIG. 2 .
  • a front guider 30 and a rear guider (rear tongue portion) 20 are provided, respectively, to form an air passage.
  • a substantial upper half of the front guider 30 is constituted by a stabilizer (front tongue portion) 32.
  • the heat exchanger 3 is disposed to surround the front side and the upper side of the fan 10. In an air conditioning operation, the fan 10 is driven so that indoor air is sucked through the inlet port 2a, and the sucked air is heated or cooled in the heat exchanger 3 and is then blown out through the outlet port 2b.
  • the fan 10 is constituted by a plurality of (six in the present embodiment) vane wheels 12 lined up in the axial direction (left-right direction) and an end plate 11.
  • the end plate 11 constitutes the right end portion of the fan 10. From a central portion of the right surface of the end plate 11, a boss portion 11a protrudes to be connected with the rotational axis of a motor (not illustrated) for driving the fan 10.
  • each of the right five vane wheels 12A is made up of vanes 15 lined up in the circumferential direction and a substantially annular supporting plate 13 connected to the left ends of the vanes.
  • the vanes 15 and the supporting plate 13 are integrally formed.
  • the right end of each vane 15 of each vane wheel 12A is joined by welding or the like with the neighboring end plate 11 or the supporting plate 13 of the neighboring vane wheel 12A.
  • the leftmost vane wheel 12B among the six vane wheels 12 is made up of vanes 15 lined up in the circumferential direction and a substantially disc-shaped end plate 14 which is connected to the left ends of the vanes 15.
  • the vanes 15 and the end plate 14 are integrally formed.
  • the right end of each vane 15 of the vane wheel 12B is joined by welding or the like with the supporting plate 13 of the neighboring vane wheel 12A.
  • a shaft (not illustrated) which is rotatably supported by a bearing attached to the casing 2 protrudes.
  • the vanes 15 of each vane wheel 12 extends in the axial direction (left-right direction), and each of which is disposed as a forward-swept wing with a predetermined blade angle.
  • the lengths of the vanes 15 of each of the five vane wheels 12A are identical in the axial direction and is substantially twice as long as the lengths of the vanes 15 of the vane wheel 12B in the axial direction.
  • the vanes 15 of each vane wheel 12 are lined up in the circumferential direction at irregular intervals.
  • the intervals of the vanes 15 are identical between the six vane wheels 12.
  • the vanes 15 may be lined up at regular intervals.
  • vanes 15 of one vane wheel 12 and the vanes 15 of the neighboring vane wheel 12 are deviated from one another in the circumferential direction.
  • vanes 15 of any given vane wheel 12 are deviated from the vanes 15 of the vane wheel 12 immediately to the left of the any given vane wheel 12 each for an angle ⁇ in the rotational direction (indicated by the arrow in FIG. 4 ).
  • each vane 15 is deviated from the corresponding vane 15 of the neighboring vane wheel 12 for the angle ⁇ in the rotational direction.
  • the rear guider 20 is provided to the back of the fan 10, and the lower edge of the rear guider 20 is connected to the outlet port 2b (see FIG. 2 ).
  • the length in the left-right direction of the rear guider 20 is substantially identical with the length in the left-right direction of the fan 10, and the rear guider 20 opposes substantially the entirety of the fan 10 in the left-right direction.
  • the upper edge of the rear guider 20 is slightly higher in position than the upper end of the fan 10.
  • a part which is not the upper and lower end portions is a curved surface 21 which is substantially arc-shaped.
  • the distance (shortest distance) between the curved surface 21 and the outer periphery of the fan 10 decreases upward.
  • the rear guider 20 includes a protruding portion 22 at a part above the curved surface 21 (i.e., to the leading end side of the curved surface 21).
  • the protruding portion 22 is substantially arc-shaped and bulges in the direction away from the fan 10 in cross section taken at the line orthogonal to the left-right direction. As shown in FIG. 9 , the distance (shortest distance) between each protruding portion 22 and the outer periphery of the fan 10 increases upward.
  • the rear guider 20 is closest to the fan 10 at a border 20a (hereinafter, closest position 20a) between the lower edge of each protruding portion 22 and the upper edge of the curved surface 21.
  • the protruding portion 22 is constituted by six twisted portions 23 lined up in the left-right direction, five connecting portions 24 each of which is provided between two neighboring twisted portions 23, two inclination alleviation portions 25, and plural rib portions 26 (see FIG. 7 and FIG. 9 ).
  • Each of the six twisted portions 23 is positioned to oppose the vane wheel 12.
  • the right five twisted portions 23A are identical with one another in length in the left-right direction, and are identical with the vanes 15 of the vane wheels 12A in length in the left-right direction.
  • the length of the leftmost twisted portion 23B is substantially identical with the length in the left-right direction of each of the vanes 15 of the vane wheel 12B.
  • Each of the twisted portions 23 is substantially arc-shaped in cross section in the direction orthogonal to the left-right direction. As shown in FIG. 11 , in the circumferential direction of the fan 10, each twisted portion 23 is deviated from the axial direction of the fan 10 gradually from the left edge to the right edge. On this account, the shape of each twisted portion 23 is substantially uniform across any cross section orthogonal to the left-right direction. Furthermore, the height of the leading end (front upper edge) of each twisted portion 23 gradually changes in the left-right direction.
  • the heights of the twisted portion 23, the connecting portion 24, the inclination alleviation portion 25, and each of later-mentioned level-difference portions 28a to 28e are not heights in the up-down direction but heights along the direction in which the protruding portion 22 protrudes (i.e., substantially frontward and upward in the present embodiment). Furthermore, the highest ends of the six twisted portions 23 are at the same height and the lowest ends of the six twisted portions 23 are at the same height (see FIGs. 6 and 7 ).
  • each twisted portion 23 is deviated for an angle ⁇ 1 in the direction opposite to the rotational direction (indicated by the arrow in FIG. 8 ) of the fan 10.
  • the angles ⁇ 1 of the deviation of the six twisted portions 23 are identical with one another.
  • the left edge of one twisted portion 23 is deviated from the right edge of the twisted portion 23 neighboring to the left of that twisted portion 23 for an angle ⁇ 1 in the rotational direction (indicated by the arrow in FIG. 9 ) of the fan 10.
  • the angle ⁇ 1 is identical with the angle ⁇ 1.
  • each of the five connecting portions 24 connects end portions of two neighboring twisted portions 23, which end portions oppose each other in the left-right direction, with each other.
  • Each connecting portion 24 is substantially arc-shaped in cross section in the direction orthogonal to the left-right direction, and is substantially as thick as each twisted portion 23.
  • the leading end (front upper edge) of each connecting portion 24 linearly extends to decrease in height rightward.
  • Each of the five connecting portions 24 is positioned to oppose the supporting plate 13 of the fan 10 (see FIGs. 6 and 7 ).
  • each inclination alleviation portion 25 extends substantially frontward from the connecting portion 24 and the front upper edge of the left end portion of the twisted portion 23 provided to the left of that connecting portion 24.
  • the inclination alleviation portion 25 is substantially triangular in shape when viewed from above.
  • the leading end (front edge) of the inclination alleviation portion 25 substantially linearly extends and connects the left edge of the leading end of the connecting portion 24 with the leading end of the twisted portion 23.
  • the height of the leading end (front edge) of the inclination alleviation portion 25 decreases rightward.
  • the length in the left-right direction of the inclination alleviation portion 25 is preferably 5% to 30% of the total length of the twisted portion 23 and the connecting portion 24 in the left-right direction.
  • the inclination alleviation portion 25 is substantially triangular in cross section in the direction orthogonal to the axial direction.
  • the rear face of the inclination alleviation portion 25 extends substantially upward from the upper surface of the twisted portion 23 or the connecting portion 24, and the upper surface of the inclination alleviation portion 25 extends substantially frontward from the upper edge of the rear face of the inclination alleviation portion 25.
  • the front edge of the inclination alleviation portion 25 is substantially as thick as the twisted portion 23 and the connecting portion 24.
  • each rib portion 26 extend backward from the rear face of the inclination alleviation portion 25.
  • each rib portion 26 is provided to protrude from the rear face (which is on the side opposite to the fan 10) of the twisted portion 23 or the connecting portion 24.
  • the height in the up-down direction of the front edge of the rib portion 26 is substantially identical with the height in the up-down direction of the upper edge of the rear face of the inclination alleviation portion 25.
  • the thickness of the rib portion 26 decreases backward.
  • the inclination alleviation portion 25 and the rib portion 26 are bulging in shape as compared to its surrounding (the twisted portion 23 and the connecting portion 24). This bulging part is termed a bulging portion 27.
  • the range of the bulging portion 27 when viewed from above is identical with the range occupied by the inclination alleviation portion 25 and the rib portions 26.
  • the height of the bulging portion 27 in a direction D (see FIG. 9 ) which is substantially orthogonal to the surface of the protruding portion 22 which surface is opposite to the fan 10 is termed bulging height.
  • the highest position 27a of the bulging height of the bulging portion 27 corresponds to the right edge of the connecting portion 24, in the upper edge of the rear face of the inclination alleviation portion 25.
  • the bulging height of a part of the bulging portion 27 which part is to the right of the apex 27a decreases rightward, whereas the bulging height of a part of the bulging portion 27 which part is to the left of the apex 27a rapidly decreases leftward.
  • each of the level-difference portions 28a to 28e is formed at the leading end of the protruding portion 22 to be lined up in the left-right direction.
  • the height of each of the level-difference portions 28a to 28e decreases rightward.
  • the level-difference portions 28a to 28c are provided to the left of a central part M in the axial direction of the fan 10 (see FIG. 6 and FIG. 7 ), whereas the level-difference portions 28d and 28e are provided to the right of the central part M in the axial direction of the fan 10.
  • Each of the level-difference portions 28a and 28b is the leading end of the inclination alleviation portion 25, whereas each of the level-difference portions 28c to 28e is the leading end of the connecting portion 24.
  • the highest points (left edges) of the five level-difference portions 28a to 28e are identical in height.
  • the lowest points (right edges) of the level-difference portions 28c to 28e which are the leading ends of the connecting portions 24 are identical in height.
  • the lowest points (right edges) of the level-difference portions 28a and 28b which are the leading ends of the inclination alleviation portions 25 are identical in height and are higher than the lowest points of the level-difference portions 28c to 28e.
  • an inclination angle of each of the level-difference portions 28a and 28b with respect to the axial direction is termed an angle ⁇ 1
  • an inclination angle of each of the level-difference portions 28c to 28e with respect to the axial direction is termed an angle ⁇ 2.
  • the angle ⁇ 1 is smaller than the angle ⁇ 2.
  • the inclination of each of the level-difference portions 28a and 28b is more gentle than the inclination of each of the level-difference portions 28c to 28e.
  • a variation in height within a predetermined length W in the left-right direction from the highest point in each of the level-difference portions 28a and 28b is referred to as ⁇ H1.
  • a variation in height within the predetermined length W in the left-right direction from the highest point in each of the level-difference portions 28c to 28e is referred to as ⁇ H2.
  • the variation ⁇ H1 is smaller than the variation ⁇ H2.
  • the variation in height within the predetermined length W in the left-right direction (axial direction) is an index for a comparison between inclinations of level-difference portions.
  • the length W is not limited to the length shown in FIG. 12 .
  • the length W is only required to be shorter than the length in the left-right direction of each of the level-difference portions 28a and 28b. Furthermore, in the present embodiment, the starting point of the length W in the left-right direction is the highest point of each level-difference portion. The starting point, however, may not be the highest point of the level-difference portion.
  • the front guider 30 is provided to the front of the fan 10, and the lower edge of the front guider 30 is connected to the outlet port 2b (see FIG. 2 ).
  • the front guider 30 is made up of the stabilizer 32 provided to oppose the fan 10 and a front wall portion 31 which extends from the lower edge of the stabilizer 32 to the outlet port 2b.
  • the length in the left-right direction of the stabilizer 32 is substantially identical with the length in the left-right direction of the fan 10, and the stabilizer 32 opposes substantially the entirety in the left-right direction of the fan 10. Furthermore, as shown in FIG. 2 and FIG. 6 , the upper edge of the stabilizer 32 is lower in position than the center of the fan 10.
  • the stabilizer 32 As shown in FIG. 14 , in the surface of the stabilizer 32 which surface opposes the fan 10, a part which is not the upper and lower end portions is a curved surface 33 which is substantially arc-shaped. The distance (shortest distance) between the curved surface 21 and the outer periphery of the fan 10 decreases upward. Furthermore, the stabilizer 32 includes a bending surface 34 which is bended substantially frontward from the lower edge of the curved surface 33. The lower edge of the bending surface 34 is connected to the front wall portion 31.
  • the stabilizer 32 includes a flat end face 35 which extends downward and frontward from the upper edge of the curved surface 33 and a convex portion 36 which is provided to the front of the end face 35 and protrudes upward from the end face 35.
  • the convex portion 36 and the end face 35 constitute the upper end portion of the rear guider 20.
  • the cross sectional shape of the convex portion 36 in the direction orthogonal to the left-right direction is substantially triangular.
  • the stabilizer 32 is closest to the outer periphery of the fan 10 at an upper edge 32a (hereinafter, closest position 32a) of the curved surface 33.
  • the stabilizer 32 (including the convex portion 36, the end face 35, the curved surface 33, and the bending surface 34) is made up of six twisted portions 37 lined up in the left-right direction and five connecting portions 38 each of which is provided between two neighboring twisted portions 37.
  • Each of the six twisted portions 23 is positioned to oppose the vane wheel 12.
  • the right five twisted portions are identical with one another in length in the left-right direction, and are identical with the vanes 15 of the vane wheels 12A in length in the left-right direction.
  • the length of the leftmost twisted portion is substantially identical with the length in the left-right direction of each of the vanes 15 of the vane wheel 12B.
  • each twisted portion 23 is deviated from the axial direction of the fan 10 gradually from the left edge to the right edge.
  • the shape of each twisted portion 23 is substantially uniform across any cross section orthogonal to the left-right direction.
  • the height of the leading end (upper edge) of each twisted portion 37 gradually changes in the left-right direction.
  • the highest ends of the six twisted portions 23 are at the same height and the lowest ends of the six twisted portions 23 are at the same height (see FIG. 6 ).
  • each twisted portion 37 is deviated for an angle ⁇ 2 in the direction opposite to the rotational direction (indicated by the arrow in FIG. 11 ) of the fan 10.
  • the angles ⁇ 2 of the deviation of the six twisted portions 37 are identical with one another.
  • the left edge of one twisted portion 37 is deviated from the right edge of the twisted portion 37 neighboring to the left of that twisted portion 37 for an angle ⁇ 2 in the direction of the rotational direction (indicated by the arrow in FIG. 10 ) of the fan 10.
  • the angle ⁇ 2 is identical with the angle ⁇ 2.
  • each of the five connecting portions 38 connects the end portions of two neighboring twisted portions 37 which end portions oppose each other in the left-right direction.
  • Each of the connecting portions 38 is positioned to oppose the supporting plate 13 of the fan 10. Because the end portions of two neighboring twisted portions 37 which end portions oppose each other in the left-right direction are different in height, five level-difference portions are formed at the leading end of the stabilizer 32 to be lined up in the left-right direction.
  • FIG. 15 the center C of the vortex airflow is indicated by a chain line.
  • the vortex airflow is bended in an area formed by the edges in the axial direction of each of the level-difference portions 28a to 28e and the fan 10.
  • the bulging portion 27 which is bulging away from the fan 10 as compared to the twisted portion and the connecting portion 24 is provided in the vicinity of each of the level-difference portions 28a and 28b.
  • the airflow is unlikely to change its direction toward each of the level-difference portions 28a and 28b and the airflow passing across the range of the bulging portion 27 is reduced. Because the flowing of the air into the bended portion of the vortex airflow in a concentrated manner is restrained, the disturbance of the vortex airflow is restrained.
  • the inclination angle ⁇ 1 of each of the level-difference portions 28a and 28b is smaller than the inclination angle ⁇ 2 of each of the other level-difference portions 28c to 28e. For this reason, as compared to the case where the inclination angle of each of the level-difference portions 28a and 28b is identical with the angle ⁇ 2 (i.e., where no inclination alleviation portion 25 is provided), the airflow is unlikely to change its direction toward each of the level-difference portions 28a and 28b, and the flowing of the air into the bended portion of the vortex airflow is further restrained. Furthermore, because the inclination angle of each of the level-difference portions 28a and 28b is small, the degree of bending of the bended portion of the vortex airflow is gentle, and hence the vortex airflow is less disturbed.
  • the vortex airflow (indicated by the arrow in FIG. 8(b) ) is generated between the leading end portion of the stabilizer 32 and the fan 10, and the wind noise is generated as the vortex airflow and the vane 15 interfere with each other when the vane 15 passes the vortex airflow. Because the twisted portion 37 of the stabilizer 32 is linearly deviated from the left-right direction in the circumferential direction, wind noise is continuously generated when the vane 15 passes across one twisted portion 37.
  • the air conditioner of the present embodiment has the following characteristics.
  • the rear guider 20 includes the bulging portion 27 bulging away from the fan 10 in the vicinity of each of the level-difference portions 28a and 28b which decreases in height toward the central part M in the axial direction of the fan 10, the airflow sucked into the fan 10 is unlikely to climb over the bulging portion 27. As such, the flowing of the air in a concentrated manner into the bended portion of the vortex airflow generated between each of the level-difference portions 28a and 28b and the fan 10 is restrained, and hence the disturbance of the vortex airflow is restrained. As a result, the wind noise is suppressed.
  • the vane 15 does not pass across that part between neighboring ones of the level-difference portions 28a to 28e at once. For this reason, when the vane 15 passes across the part between neighboring ones of the level-difference portions 28a to 28e, wind noise is continuously generated, and hence the wind noise is suppressed.
  • each of the level-difference portions (second level-difference portions) 28d and 28e increases toward the central part M in the axial direction of the fan 10, the airflow sucked into the fan 10 does not change its direction toward each of the level-difference portions 28d and 28e. On this account, it is unnecessary to provide a bulging portion in the vicinity of each of the level-difference portions 28d and 28e. If a bulging portion is provided in the vicinity of each of all the level-difference portions 28a to 28e, the air-blowing capability may be deteriorated on account of high air-blowing resistance. In the present embodiment, because no bulging portion is provided in the vicinity of each of the level-difference portions 28d and 28e, the deterioration of the air-blowing capability is prevented.
  • the disturbance of the vortex airflow is further restrained as the bulging portion 27 is provided in the vicinity of the level-difference portion 28a which is closest to the end portion in the axial direction of the fan 10. Furthermore, because in the present embodiment the bulging portion 27 is provided also in the vicinity of the level-difference portion 28b which is the second closest to the end portion in the axial direction of the fan 10, the disturbance of the vortex airflow is further restrained.
  • no bulging portion is provided in the vicinity of the level-difference portion 28c which decreases in height toward the central part M in the axial direction of the fan 10.
  • the level-difference portion 28c is close to the central part M in the axial direction of the fan 10
  • the direction of the air flowing around the level-difference portion 28c is substantially orthogonal to the axial direction, and the airflow scarcely changes its direction toward the level-difference portion 28c.
  • the deterioration in the air-blowing capability is restrained because no bulging portion is provided in the vicinity of the level-difference portion 28c.
  • the bulging portion 27 is formed along each of the level-difference portions 28a and 28b, it is possible to restrain the airflow sucked into the fan 10 from climbing over each of the level-difference portions 28a and 28b. In this way, the flowing of the air in a concentrated manner into the bended portion of the vortex airflow is further certainly restrained.
  • the variation in height of each of the level-difference portions 28a and 28b within the predetermined length in the axial direction is smaller than the variation in height of each of the other level-difference portions 28c to 28e.
  • the variation in height of each of the level-difference portions 28a and 28b is identical with that of each of the level-difference portions 28c to 28e, the air flow tends to change its direction toward each of the level-difference portions 28a and 28b around each of the level-difference portions 28a and 28b, with the result that the disturbance is likely to occur at the bended portion of the vortex airflow.
  • each of the level-difference portions 28a and 28b is small, it is possible to restrain the airflow sucked into the fan 10 from changing its direction toward each of the level-difference portions 28a and 28b. This further restrains the flowing of the air in a concentrated manner into the bended portion of the vortex airflow generated between each of the level-difference portions 28a and 28b and the fan 10.
  • a connecting portion 24 may not be provided and end portions of two neighboring twisted portions 23 which end portions oppose each other in the axial direction may be directly connected with each other as shown in FIG. 16 (a) to FIG. 16 (f) .
  • a level-difference portion for which no inclination alleviation portion is provided e.g., a level-difference portion 128e shown in FIG. 16 (a) to FIG. 16 (f) is constituted by the leading end portion of higher one of the opposing end portions of two neighboring twisted portions 23, and is orthogonal to the axial direction.
  • each of the level-difference portions 28a and 28b may be different from the shape described in the embodiment above.
  • a level-difference portion may extend in a curved manner from the highest point to the lowest point, as in a level-difference portion 128a which is indicated by the thick line in FIG. 16(a) .
  • the height of a level-difference portion may change in stages as in level-difference portions 228a to 628a and 828a which are indicated by the thick lines in FIG. 16 (b) to FIG. 16(f) and FIG. 17(b) .
  • the inclination of the level-difference portion is adjustable irrespective of the length in the axial direction of the level-difference portion.
  • the edge portion which extends linearly or in a curved manner from the highest point is gentle in inclination as compared to the level-difference portion (second level-difference portion) 128e which increases in height toward the central part in the axial direction of the fan (i.e. , the variation in height within the predetermined length in the axial direction is small).
  • This arrangement restrains the airflow sucked into the fan 10 from changing its direction toward each of the above-described edge portions of the level-difference portions 228a and 828a.
  • the predetermined length in the axial direction is, for example, shorter than the length in the axial direction of each of the level-difference portions 228a and 828a from the highest point of each of the level-difference portions 228a, 828a, and 128e.
  • the inclination angle of the edge portion which extends linearly or in a curved manner from the highest point is identical with the inclination angle of the level-difference portion (second level-difference portion) 128e which increases in height toward the central part in the axial direction of the fan, and this edge portion is shorter than the edge portion which extends linearly from the highest point of the level-difference portion 128e.
  • This arrangement restrains the airflow sucked into the fan 10 from changing its direction toward around the edge portion of each of the level-difference portion 328a to 628a.
  • the predetermined length in the axial direction is, for example, longer than the length in the axial direction of the edge portion of each of the level-difference portions 328a to 628a from the highest point of each of the level-difference portions 328a to 628a and 128e.
  • the height of the highest points of the level-difference portions 28a and 28b may be different from the height of the highest point of the level-difference portion (second level-difference portion) 128e, as in level-difference portions 728a and 828a indicated by the thick lines in FIG. 17(a) and FIG. 17(b) .
  • the two level-difference portions 28a and 28b are identical in the variation in height ⁇ H1 within the predetermined length W in the axial direction, these portions may be different in the variation.
  • the variation in height of the level-difference portion 28a which is farther from the central part M in the axial direction of the fan 10 is preferably arranged to be smaller than the variation in height of the level-difference portion 28b.
  • the level-difference portions 28a and 28b among the three level-difference portions 28a to 28c each of which decreases in height toward the central part M in the axial direction of the fan 10 are smaller than the level-difference portions 28d and 27e which increase in height toward the central part M in the axial direction of the fan 10, in terms of the variation in height in the predetermined length in the axial direction.
  • all of the three level-difference portions 28a to 28c may be smaller than the level-difference portions 28d and 28e in terms of the variation in height.
  • the variation in height of the level-difference portion 28a which is farther from the central part M in the axial direction of the fan 10 is preferably arranged to be smaller than the variation in height of the level-difference portion 28b.
  • the present invention is not limited to this arrangement.
  • the number of the level-difference portions may be different from the number of the supporting plates 13.
  • the level-difference portions may not be disposed to oppose the respective supporting plates 13.
  • a part between neighboring ones of level-difference portions 928a to 928e and 929a to 929e may be constant in height in the axial direction, as in a rear guider 920 shown in FIG. 18 and FIG. 19 , for example.
  • the rear guider 920 is easily formed in this case.
  • a protruding portion 922 of the rear guider 920 is arc-shaped in cross section in the direction orthogonal to the axial direction and, high portions and low portions are alternately lined up in the axial direction.
  • the level-difference portions 928a to 928e each of which decreases in height toward one end in the axial direction of the fan 10
  • the level-difference portions 929a to 929e each of which increases in height toward the one end in the axial direction of the fan 10 are alternately lined up in the axial direction.
  • level-difference portions first level-difference portions
  • 928a to 928c and 929c to 929e each of which decreases in height toward the central part M in the axial direction of the fan 10
  • four level-difference portions 928a, 928b, 929d, and 929e which are close to the ends in the axial direction of the fan 10 are smaller than the level-difference portions (second level-difference portions) 928d, 928e, 929a, and 929b each of which increases in height toward the central part M in the axial direction of the fan 10, in terms of the variation in height within a predetermined length in the axial direction.
  • the predetermined length in the axial direction is, for example, shorter than the length in the axial direction of each of the level-difference portions 928a, 928b, 929d, and 929e from the highest point of each of the level-difference portions 928a to 928e and 929a to 929e.
  • a bulging portion 927 is formed in the vicinity of each of the level-difference portions 928a, 928b, 929d, and 929e. The bulging height of this bulging portion 927 decreases toward the central part M in the axial direction of the fan 10.
  • the shape of the bulging portion 27 is not limited to the shape described in the embodiment above, and is only required to be bulging away from the fan 10 as compared to the surrounding of the bulging portion 27.
  • the bulging height of the bulging portion 27 which is farther from the central part M in the axial direction of the fan 10 is preferably arranged to be higher than the bulging height of the other bulging portion 27.
  • the bulging portion 27 is provided in the vicinity of each of the level-difference portions 28a and 28b, no bulging portion 27 may be provided in the vicinity of only one of the two level-difference portions 28a and 28b.
  • the surface on the side opposite to the fan 10 of one of the two inclination alleviation portions 25 may not be bulging as compared to the twisted portion 23 and the connecting portion 24.
  • the bulging portion 27 is preferably provided at the level-difference portion 28a which is farther from the central part M in the axial direction of the fan 10.
  • each of the level-difference portions 28a and 28b in the vicinity of the bulging portion 27 is more gentle than the inclination of each of the level-difference portions (second level-difference portions) 28d and 28e which increase in height toward the central part M in the axial direction of the fan 10 (i.e. , the variation in height within the predetermined range in the axial direction is small).
  • the variation in height within the predetermined range in the axial direction is small.
  • the variation in height of each of level-difference portions 1028a, 1128a, and 1228a in the vicinity of each of bulging portions 1027, 1127, and 1227 may be equal to the variation in height of the level-difference portion (second level-difference portion) 128e which increases in height toward the central part M in the axial direction of the fan 10.
  • the ranges of the bulging portions 1027, 1127, and 1227 are hatched.
  • the range of the formation of the bulging portion 27 is not limited to this.
  • the bulging portion may be differently formed as long as the bulging portion is formed in the vicinity of a level-difference portion which decreases in height toward the central part M in the axial direction of the fan 10 and in a part where the amount of air flowing into the bended portion of the vortex airflow can be reduced.
  • a bulging portion may be formed only at around the lowest part of the level-difference portion 1128a.
  • a bulging portion may be formed only at around the highest part of the level-difference portion 1228 (a). In any modifications, the air flowing into the bended portion of the vortex airflow is reduced.
  • the level-difference portions provided at the leading end of the stabilizer 32 are identical with one another in inclination, the level-difference portions of the stabilizer 32 may be different from one another in inclination as in the rear guider 20 (i.e., they may be different from one another in the variation in height in the predetermined length in the axial direction).
  • the variation in height of at least one of the level-difference portions each of which decreases in height toward the central part M in the axial direction of the fan 10 is arranged to be smaller than the variation in height of the level-difference portions each of which increases in height toward the central part M in the axial direction of the fan 10.
  • the level-difference portions are different from each other in inclination only in one of the rear guider 20 and the stabilizer 32.
  • a bulging portion may be provided in the vicinity of a level-difference portion of the stabilizer 32, as in the rear guider 20.
  • a bulging portion which is bulging away from the fan 10 as compared to the surrounding is provided in the vicinity of at least one of the level-difference portions each of which decreases in height toward the central part M in the axial direction of the fan 10.
  • a bulging portion may be provided in only one of the rear guider 20 and the stabilizer 32.
  • the present invention may be applicable to other purposes.
  • the present invention may be employed in a floor-mounted indoor unit which is arranged to suck indoor air from a lower part of the indoor unit and blow out the air from an upper part of the indoor unit.
  • the present invention makes it possible to suppress wind noise by restraining the disturbance of a vortex airflow.

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  • 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)

Claims (9)

  1. Klimaanlage, umfassend:
    ein Querstromgebläse (10); und
    einen Stabilisator (32) und ein hinteres Führungselement (20), die an jeweiligen Seiten eines Außenumfangs des Querstromgebläses (10) vorgesehen sind, um einen Luftdurchgang zu bilden,
    wobei mindestens einer von dem Stabilisator (32) und dem hinteren Führungselement (20) an einem vorderen Endabschnitt Höhenunterschiedsabschnitte (28a-28c) aufweist, die in einer axialen Richtung des Gebläses angeordnet sind und erste Höhenunterschiedsabschnitte (28a-28c) aufweisen, von denen jeder in Richtung eines Mittelteils (M) in axialer Richtung des Gebläses (10) an Höhe abnimmt; wobei in der Nähe von mindestens einem der ersten Höhenunterschiedsabschnitte (28a, 28b) auf einer Oberfläche des mindestens einen Stabilisators (32) oder hinteren Führungselements (20), die dem Querstromgebläse (10) gegenüberliegt, ein Ausbauchungsabschnitt (27) ausgebildet ist,
    dadurch gekennzeichnet, dass:
    der Ausbauchungsabschnitt (27) im Vergleich zu seiner Umgebung eine gewölbte Form aufweist und von dem Gebläse weg ausbaucht.
  2. Klimaanlage nach Anspruch 1, wobei der Ausbauchungsabschnitt (27) entlang der ersten Höhenunterschiedsabschnitte (28a-28c) ausgebildet ist.
  3. Klimaanlage nach Anspruch 1 oder 2, wobei der Ausbauchungsabschnitt (27) in der Nähe eines ersten Höhenunterschiedsabschnitts (28a) vorgesehen ist, der am weitesten in axialer Richtung von dem Mittelteil (M) des Gebläses entfernt ist, unter den ersten Höhenunterschiedsabschnitten.
  4. Klimaanlage nach einem der Ansprüche 1 bis 3, wobei mindestens einer von dem Stabilisator (32) und dem hinteren Führungselement (20) ferner einen oder mehrere Ausbauchungsabschnitt (27) aufweist, und die zwei oder mehr Ausbauchungsabschnitte (27) so angeordnet sind, dass die Ausbauchungshöhe jedes der Ausbauchungsabschnitte (27) mit zunehmender Entfernung von dem Mittenteil (M) des Gebläses in axialer Richtung zunimmt.
  5. Klimaanlage nach einem der Ansprüche 1 bis 4, wobei jeder der ersten Höhenunterschiedsabschnitte (28a-28c) sich geradlinig oder gekrümmt von einem höchsten Punkt zu einem niedrigsten Punkt erstreckt.
  6. Klimaanlage nach einem der Ansprüche 1 bis 4, wobei sich die Höhe jedes der ersten Höhenunterschiedsabschnitte (28a, 28c) stufenweise ändert.
  7. Klimaanlage nach einem der Ansprüche 1 bis 6, wobei zwei erste Höhenunterschiedsabschnitte (28a, 28b) unter den ersten Höhenunterschiedsabschnitten (28a-28c) zueinander benachbart vorgesehen sind, und
    sich die Höhe eines Teils zwischen den beiden benachbarten Höhenunterschiedsabschnitten (28a, 28b) allmählich in axialer Richtung ändert.
  8. Klimaanlage nach einem der Ansprüche 1 bis 6, wobei in der Nähe von einem der ersten Höhenunterschiedsabschnitte (28c) ein Höhenunterschiedsabschnitt (28d), dessen Höhe in Richtung des Mittenteils (M) des Gebläses (10) in axialer Richtung zunimmt, vorgesehen ist, und
    die Höhe eines Teils zwischen den beiden benachbarten Höhenunterschiedsabschnitten in axialer Richtung konstant ist.
  9. Klimaanlage nach einem der Ansprüche 1 bis 8, wobei die Höhenunterschiedsabschnitte zweite Höhenunterschiedsabschnitte (28d, 28e) aufweisen, von denen jeder in Richtung zum Mittelteil (M) des Gebläses (10) in axialer Richtung an Höhe zunimmt, und
    in dem zumindest einen von dem Stabilisator (32) und dem hinteren Führungselement (20) in der Nähe jedes der zweiten Höhenunterschiedsabschnitte (28d, 28e) auf der Oberfläche des mindestens einen von dem Stabilisator (32) und dem hinteren Führungselement (20), die dem Querstromgebläse (10) gegenüberliegt, kein Ausbauchungsabschnitt (27) ausgebildet ist.
EP13841557.5A 2012-09-28 2013-08-20 Klimaanlage Active EP2902632B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012215536A JP5477441B2 (ja) 2012-09-28 2012-09-28 空気調和機
PCT/JP2013/072148 WO2014050365A1 (ja) 2012-09-28 2013-08-20 空気調和機

Publications (3)

Publication Number Publication Date
EP2902632A1 EP2902632A1 (de) 2015-08-05
EP2902632A4 EP2902632A4 (de) 2015-10-07
EP2902632B1 true EP2902632B1 (de) 2017-01-11

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EP (1) EP2902632B1 (de)
JP (1) JP5477441B2 (de)
CN (1) CN104662303B (de)
ES (1) ES2622007T3 (de)
WO (1) WO2014050365A1 (de)

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JP6289348B2 (ja) * 2014-11-13 2018-03-07 三菱電機株式会社 空気調和機
CN108194386A (zh) * 2018-02-07 2018-06-22 广东纽恩泰新能源科技发展有限公司 一种贯流式风机
JP2020204430A (ja) * 2019-06-17 2020-12-24 パナソニックＩｐマネジメント株式会社 空気調和機
KR20210062846A (ko) * 2019-11-22 2021-06-01 삼성전자주식회사 공기조화기
KR20210108249A (ko) * 2020-02-25 2021-09-02 엘지전자 주식회사 공기조화기
JP7103465B1 (ja) 2021-03-31 2022-07-20 株式会社富士通ゼネラル 送風機および室内機
WO2023182025A1 (ja) * 2022-03-22 2023-09-28 パナソニックＩｐマネジメント株式会社 空気調和機

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JPH01167494A (ja) * 1987-12-23 1989-07-03 Hitachi Ltd クロスフローフアン
JPH071093B2 (ja) 1989-02-01 1995-01-11 松下電器産業株式会社 空気調和機
JPH0752016B2 (ja) * 1990-07-24 1995-06-05 ダイキン工業株式会社 空気調和機の室内機
KR19990080984A (ko) * 1998-04-24 1999-11-15 윤종용 개선된 스태빌라이저를 가지는 횡류팬 송풍기
JP3957927B2 (ja) * 1999-08-30 2007-08-15 三菱重工業株式会社 天井埋込型空気調和装置
JP3700578B2 (ja) * 2000-12-22 2005-09-28 ダイキン工業株式会社 空気調和装置の室内機
KR101116675B1 (ko) * 2004-04-08 2012-03-07 삼성전자주식회사 공기조화기
EP2405206B1 (de) * 2009-03-06 2019-04-24 Mitsubishi Electric Corporation Klimaanlage
CN202284847U (zh) * 2011-10-24 2012-06-27 海信科龙电器股份有限公司 一种贯流风道***

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Publication number Publication date
ES2622007T3 (es) 2017-07-05
JP2014070519A (ja) 2014-04-21
WO2014050365A1 (ja) 2014-04-03
EP2902632A4 (de) 2015-10-07
CN104662303A (zh) 2015-05-27
EP2902632A1 (de) 2015-08-05
CN104662303B (zh) 2016-06-22
JP5477441B2 (ja) 2014-04-23

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