WO2014199589A1 - 送風機およびこれを用いた空気調和機 - Google Patents

送風機およびこれを用いた空気調和機 Download PDF

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Publication number
WO2014199589A1
WO2014199589A1 PCT/JP2014/002929 JP2014002929W WO2014199589A1 WO 2014199589 A1 WO2014199589 A1 WO 2014199589A1 JP 2014002929 W JP2014002929 W JP 2014002929W WO 2014199589 A1 WO2014199589 A1 WO 2014199589A1
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WO
WIPO (PCT)
Prior art keywords
rear guider
stabilizer
side wall
fan
blower
Prior art date
Application number
PCT/JP2014/002929
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
憲昭 山本
酒井　浩一
正春 海老原
清水　昭彦
智貴 森川
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2015522515A priority Critical patent/JP6398086B2/ja
Priority to CN201480030338.XA priority patent/CN105247221B/zh
Publication of WO2014199589A1 publication Critical patent/WO2014199589A1/ja

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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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—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
    • F04D29/40—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
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • 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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall

Definitions

  • the present invention relates to a blower and an air conditioner using the blower.
  • FIG. 11 is a cross-sectional view of a conventional cross flow blower and an indoor unit of an air conditioner using the blower.
  • FIG. 12 is a perspective view showing the vicinity of the side wall of the indoor unit.
  • an air ventilation path is formed by the cross flow fan 102, the rear guider 103, and the stabilizer 104 including the plurality of blades 101.
  • the axial ventilation path is restricted by the left and right side walls 105 arranged in the direction perpendicular to the rotation axis of the cross flow fan 102.
  • the air passes through the suction grill 106, the filter 107 and the heat exchanger 108 and flows into the cross flow fan 102. Further, the air flowing into the cross flow fan 102 passes through a ventilation path (diffuser) 109 formed by the rear guider 103, the stabilizer 104, and the side wall 105, and is discharged from the blowout portion of the blower.
  • a ventilation path diffuseuser
  • the flow of air blown out from the cross flow fan 102 is formed in a two-dimensional flow at the axial center of the cross flow fan 102 in the ventilation path 109.
  • the two-dimensional flow of air is disrupted due to the viscosity of the fluid. Therefore, in the vicinity of the side wall 105, there is a problem that the fluctuation component of the air flow increases and the noise of the blower increases.
  • the flow rate of the air is stalled due to the resistance of the heat exchanger 108 and the filter 107, and a further two-dimensional flow disruption is generated in the vicinity of the side wall 105. Therefore, separation of the air flow occurs intermittently, resulting in an unsteady flow, and there is a problem that the flow performance of the cross flow fan 102 is greatly reduced and further noise is increased.
  • the shape of the side wall is changed so that the ventilation path in the rotational axis direction of the crossflow fan 102 is gradually reduced in the ventilation path 109 from the blowing section of the crossflow fan 102 to the blowing section of the blower.
  • Has been proposed see, for example, Patent Document 1).
  • separation of the flow in the vicinity of the side wall is suppressed, and noise is reduced by stabilizing the flow.
  • Patent Document 1 is effective for generating abnormal noise during low airflow operation.
  • the configuration described in Patent Document 1 causes a large resistance in the ventilation path.
  • the power consumption of the fan motor which is the power of the cross flow fan is increased.
  • the present invention solves the above-described conventional problems, and reduces noise in the vicinity of the side wall and at the same time improves the air volume performance of the entire air conditioner, and has a high energy-saving performance blower and an air conditioner using the blower.
  • the purpose is to provide a machine.
  • a blower includes a cross flow fan, a stabilizer disposed opposite the cross flow fan, a rear guider that forms a ventilation path between the stabilizer, and a cross flow fan.
  • a side wall disposed in a direction perpendicular to the rotation axis, and on the outlet side of the rear guider, on the stabilizer side compared to the center part of the rear guideer over a predetermined range from the end portion in the axial direction of the rotation shaft.
  • the protruding part which protrudes is formed.
  • the width of the ventilation path in the region where the projecting portion is formed is narrower than the ventilation path in the central portion.
  • the present invention it is possible to secure air flow performance in the vicinity of the central portion and the side wall on the exit side of the rear guider, and at the same time to stabilize the flow by suppressing separation of the air flow in the vicinity of the side wall, thereby reducing abnormal noise. It becomes possible. Thereby, a low noise and high energy-saving blower and an air conditioner using the blower can be provided.
  • FIG. 1 is a perspective view showing an indoor unit of an air conditioner using a blower according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view of the indoor unit.
  • FIG. 3 is an enlarged schematic view of the outlet of the indoor unit.
  • FIG. 4 is a perspective view of the vicinity of the right side wall of the outlet of the indoor unit.
  • FIG. 5 is a sectional view taken along line 5-5 in FIG. 3 in the vicinity of the right side wall of the outlet of the indoor unit.
  • FIG. 6 is a plan view of the outlet of the indoor unit as viewed from an angle perpendicular to the rear guider at the outlet of the outlet.
  • FIG. 1 is a perspective view showing an indoor unit of an air conditioner using a blower according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view of the indoor unit.
  • FIG. 3 is an enlarged schematic view of the outlet of the indoor unit.
  • FIG. 4 is a perspective view of
  • FIG. 7 is a graph showing the relationship between the axial length (L) from the end of the protruding portion and the air volume in the rear guider of the same indoor unit.
  • FIG. 8 is a graph showing the relationship between the angle (D1) of the step portion and the air volume in the rear guider of the same indoor unit.
  • FIG. 9 is a diagram illustrating the positional relationship between the left and right section change blades and the protrusions of the air conditioner using the blower according to Embodiment 2 of the present invention.
  • FIG. 10 is a diagram illustrating a stabilizer of an air conditioner using a blower according to Embodiment 3 of the present invention.
  • FIG. 11 is a cross-sectional view showing a conventional blower and an indoor unit of an air conditioner using the blower.
  • FIG. 12 is a perspective view showing the vicinity of the side wall of the indoor unit.
  • the first invention includes a cross flow fan, a stabilizer disposed opposite to the cross flow fan, a rear guider that forms an air passage between the stabilizer, and a direction perpendicular to the rotation axis of the cross flow fan And a side wall disposed on the outlet side of the rear guider, the protrusion projecting from the end part toward the stabilizer side over the predetermined range in the axial direction of the rotating shaft from the center part of the rear guider.
  • the part is formed. Thereby, the width
  • a second invention is the first invention, further comprising a plurality of left and right wind direction changing blades that are rotatably provided downstream of the rear guider, and that change the left and right direction of the blowout wind.
  • the step portion to be connected is arranged in a region corresponding to the blade on the side wall side among the plurality of left and right wind direction changing blades.
  • the third invention satisfies R / 5 ⁇ L ⁇ 3R, where L is the axial length of the protrusion and R is the radius of the crossflow fan in the first invention.
  • the angle formed is X
  • X satisfies 80 ° ⁇ X ⁇ 130 °
  • the stabilizer has the same shape in the axial direction up to the position where X satisfies the above formula, and exceeds the angle satisfying the above formula.
  • a protruding portion is formed in the region.
  • the cross flow fan's axial rear guider shape can be the same and the flow can be stabilized. It becomes. Furthermore, it is possible to appropriately narrow the ventilation path from the region where the wind speed is slow and flow separation occurs near the side wall.
  • the stepped portion gradually decreases in height from the protruding portion to the central portion.
  • the inclination angle of the stepped portion is 60 degrees or less.
  • a protruding portion is formed on the outlet side of the stabilizer so as to protrude from the end portion toward the rear guider side as compared with the central portion of the stabilizer over a predetermined axial range.
  • the eighth invention is an air conditioner in which a heat exchanger and the blower according to any one of the first to seventh inventions are provided in a main body having a suction port and a blowout port.
  • FIG. 1 is a perspective view showing an indoor unit of an air conditioner using a blower according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view of the indoor unit.
  • a main body 1 of an indoor unit of an air conditioner includes a blower having a cross flow fan 3, a rear guider 5, and a stabilizer 4 between a suction port 1a and a blower port 1b, and a heat exchanger 2.
  • the cross flow fan 3 is operated to take in indoor air from the suction port 1a, and blow out the air heat-exchanged by the heat exchanger 2 from the blower port 1b.
  • a stabilizer 4 In the ventilation path 13 from the crossflow fan 3 to the outlet 1b, a stabilizer 4, a rear guider 5 that forms a bottom wall from the back side of the crossflow fan 3 to the outlet 1b, left and right side walls (not shown), and The cross section is substantially arc-shaped, and upper and lower blades 6 for controlling the vertical direction of the blown air are formed.
  • stabilizer is a member located near the downstream of the crossflow fan 3 and having a curved surface shape for stabilizing vortices generated near the front of the crossflow fan 3, and downstream of the member. It means that includes both the wall portion that is located on the side and that forms the upper side of the ventilation path of the air conveyed by the crossflow fan 3.
  • a ventilation path 13 is formed by the rear guider 5, the stabilizer 4, and the side wall (not shown).
  • FIG. 3 is an enlarged schematic view from the cross flow fan 3 to the outlet 1b.
  • FIG. 4 is a perspective view of the vicinity of the right side wall of the outlet of the indoor unit.
  • FIG. 5 is a sectional view taken along line 5-5 in FIG. 3 in the vicinity of the right side wall.
  • FIG. 6 is a plan view seen from an angle perpendicular to the rear guider 5 at the outlet of the outlet.
  • Part 5a2 is formed on the outlet side of the rear guider 5.
  • the cross-sectional shape of the flow path from the vicinity of the side wall 12 to the outlet side of the rear guider 5 outlet of a certain length with respect to the axial direction of the cross flow fan 3 is the flow path from the rear side of the rear guider outlet of the central portion 5a1.
  • the flow path is narrower than the cross-sectional shape.
  • the width of the ventilation path 13 in the region where the projecting portion 5a2 is formed is narrower than the ventilation path 13 in the central portion 5a1 (distance in a direction perpendicular to the rotation axis direction of the cross flow fan 3).
  • the ventilation path can be secured to the maximum.
  • the vicinity of the side wall 12 where the wind speed is slow and the flow is unstable it is possible to improve the static pressure and stabilize the flow. Therefore, it is possible to achieve both improvement in air volume performance and reduction in noise due to separation of the flow in the vicinity of the side wall.
  • a protruding portion 5a2 On the exit side of the rear guider 5, a protruding portion 5a2, a central portion 5a1, and a step portion 5b that connects the protruding portion 5a2 and the central portion 5a1 are formed.
  • the rear guider 5 has the same shape (including substantially the same shape) in the major axis direction of the cross flow fan 3 in the region where the angle X is less than 110 degrees.
  • the protruding portion 5a2 is formed in the vicinity of the side wall 12.
  • the angle X connects the line connecting the rear guider 5 and the closest point A of the crossflow fan 3 from the center point of the crossflow fan 3 and the blowout part B of the rear guider 5 from the center point of the crossflow fan 3. It means the angle made with the line.
  • the angle X refers to the line segment connecting the rear guider 5 and the closest point A of the cross flow fan 3 from the center point of the cross flow fan 3 to the formation start portion of the protrusion 5a2 from the center point of the cross flow fan 3. This is the angle formed by the line segment that connects.
  • the angle X may be set appropriately according to the relative positional relationship between the crossflow fan 3, the stabilizer 4, and the rear guider 5, but is preferably set in a range of 80 ° ⁇ X ⁇ 130 °. If X is larger than 130 °, the region where the protrusion 5a2 is formed is too small to sufficiently improve the static pressure, and the flow cannot be stabilized. When X is smaller than 80 °, the protruding portion 5a2 becomes a resistance on the upstream side of the rear guider 5, and the amount of air flowing out from the outlet is reduced.
  • FIG. 7 shows the air volume when the cross flow fan 3 is fixed at the same rotational speed and the axial length L of the protruding portion 5a2 of the rear guider 5 is changed in the present embodiment.
  • R is the radius of the cross flow fan 3.
  • the axial length L may be adjusted as appropriate.
  • step H2 with respect to the central portion 5a1 of 5a2 near the left and right side walls at the tip of the outlet shown in FIG. 5 may be set according to the magnitude of the ventilation resistance.
  • the present embodiment capable of realizing both improvement in the air volume performance of the central main air passage section and improvement of the static pressure in the vicinity of the side wall is particularly effective for air conditioners with high energy saving performance in recent years.
  • the stepped portion 5b is configured to smoothly connect the protruding portion 5a2 and the central portion 5a1.
  • smoothly means that the height gradually decreases from the protruding portion 5a2 to the central portion 5a1.
  • FIG. 8 shows the air flow when the cross flow fan 3 is fixed at the same rotational speed and the angle D1 (see FIG. 5) formed by the step portions 5b and 5a1 is changed.
  • the angle D1 can be rephrased as the inclination angle of the step portion 5b.
  • D1 is 90 degrees, that is, when the air volume of the shape having the stepped portion 5a1 and the central portion 5a2 is 100%, the air volume performance is improved as the angle is reduced, and the air volume performance reaches a peak when D1 is 30 degrees. .
  • D1 can be appropriately selected according to the step H2 of the projecting portion 5a2 with respect to the central portion 5a1, etc., but it is preferably configured at an average of 60 degrees or less in order to suppress separation of the air flow in the stepped portion 5b.
  • the angle D1 is configured to be substantially constant, and this configuration can further suppress the flow separation at the step portion 5b.
  • the blower used for the indoor unit of the air conditioner has been described as an example.
  • the blower can be applied to general blowers composed of a crossflow fan and a casing, and is particularly suitable for a blower having high ventilation resistance near the side wall. Useful.
  • FIG. 9 is a diagram for explaining the positional relationship between the left and right wind direction changing blades 20 and the protrusions 5a2 of the air conditioner.
  • the same reference numerals are given to portions showing substantially the same functions and operations as those of the first embodiment, and the description thereof is omitted.
  • the basic configuration and operation of the blower of the second embodiment and the air conditioner using the same are the same as the configuration and operation of the blower of the first embodiment and the air conditioner using the same. Therefore, in the description of the second embodiment, only the positional relationship between the left / right wind direction changing blade 20 and the protruding portion 5a2 will be described.
  • a plurality of left and right wind direction changing blades 20 that are rotatably provided and change the left and right direction of the blowing air are arranged downstream of the rear guider 5.
  • the step portion 5 b of the rear guider 5 is arranged in a region corresponding to the blade 20 a closest to the side wall among the plurality of left and right wind direction changing blades 20.
  • the “corresponding region” means a region where the blade 20 a on the most side wall side is projected onto the rear guider 5.
  • the distance between the blade 20a closest to the side wall and the side wall 12 is changed by the rotation of the blade 20a, and the air flow is unstable and noise is likely to be generated. .
  • the side wall 12 is fixedly arranged.
  • the distance between adjacent blades other than the blades 20a is constant even when the blades rotate, and the air flow is stable. This is because the plurality of blades of the left / right wind direction changing blade 20 rotate so as to be parallel to each other.
  • the region where the projecting portion 5a2 is formed to narrow the ventilation path is limited to the area where noise is likely to occur, and the ventilation path is secured to the maximum in the area where the wind speed is fast and the flow is stable. can do.
  • the stepped portion 5b does not necessarily have to be arranged only in the region corresponding to the blade 22a on the most side wall side, and is out of the predetermined range outside the corresponding region within the range where the effects of the present embodiment are achieved. It may be.
  • FIG. 10 is a diagram for explaining the protruding portion 4 a 2 provided on the outlet side of the stabilizer 4.
  • the same reference numerals are given to the portions showing substantially the same functions and operations as those of the first embodiment, and the description thereof is omitted.
  • the basic configuration and operation of the blower of Embodiment 3 and the air conditioner using the same are the same as the configuration and operation of the blower of Embodiment 1 and the air conditioner using the same.
  • Part 4a2 is formed on the outlet side of the stabilizer 4.
  • a protruding portion 4 a 2 On the outlet side of the stabilizer 4, a protruding portion 4 a 2, a step portion 4 b, and a central portion 4 a 1 are formed.
  • the width of the ventilation path 13 in the region where the projecting portion 4a2 is formed is narrower than the ventilation path 13 in the central portion 4a1.
  • the ventilation path 13 can be secured to the maximum in the central portion 4a1 where the wind speed is fast and the flow is stable.
  • the side wall 12 where the wind speed is slow and the flow is unstable it is possible to improve the static pressure and stabilize the flow. Therefore, it is possible to achieve both improvement in air volume performance and reduction in noise due to separation of the flow in the vicinity of the side wall.
  • the protrusion part 4a2 may be provided in the side wall 12 vicinity of both right and left sides, and the protrusion part 4a2 may be provided in either right or left.
  • the protrusion 4 a 2 of the stabilizer 4 may be provided together with the protrusion 5 a 2 of the rear guider 5.
  • the protrusion 5a2 of the rear guider 5 may not be provided, and the protrusion 4a2 may be provided only on the stabilizer 4.
  • the present invention in a blower using a cross-flow fan, improves the air flow performance near the central portion and the side wall, which is the mainstream, and at the same time stabilizes the flow by suppressing separation near the side wall, thereby reducing noise. Can do. Therefore, the present invention is useful for an air conditioner indoor unit and a general blower using a cross flow fan.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
PCT/JP2014/002929 2013-06-10 2014-06-03 送風機およびこれを用いた空気調和機 WO2014199589A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015522515A JP6398086B2 (ja) 2013-06-10 2014-06-03 送風機およびこれを用いた空気調和機
CN201480030338.XA CN105247221B (zh) 2013-06-10 2014-06-03 风机和使用其的空气调节机

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JP2013-121513 2013-06-10
JP2013121513 2013-06-10

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JP2017053500A (ja) * 2015-09-07 2017-03-16 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド 空気調和機の室内ユニット

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JP7329969B2 (ja) * 2019-06-06 2023-08-21 シャープ株式会社 空気調和機
CN113906218A (zh) * 2019-07-03 2022-01-07 极光先进雷射株式会社 激光腔和电子器件的制造方法

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JPS57182295U (zh) * 1982-04-08 1982-11-18
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JPH01116315U (zh) * 1988-01-29 1989-08-04
JPH06307380A (ja) * 1993-04-26 1994-11-01 Matsushita Electric Ind Co Ltd 横断流送風機
JP2012145250A (ja) * 2011-01-11 2012-08-02 Sharp Corp 空気調和機

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JP3792226B2 (ja) * 2003-11-28 2006-07-05 シャープ株式会社 空気調和機
CN1793740A (zh) * 2004-12-24 2006-06-28 松下电器产业株式会社 空调装置
JP4678327B2 (ja) * 2006-04-26 2011-04-27 三菱電機株式会社 空気調和機

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Publication number Priority date Publication date Assignee Title
JPS586993U (ja) * 1981-07-08 1983-01-17 株式会社日立製作所 貫流フアン送風装置
JPS57182295U (zh) * 1982-04-08 1982-11-18
JPH01116315U (zh) * 1988-01-29 1989-08-04
JPH06307380A (ja) * 1993-04-26 1994-11-01 Matsushita Electric Ind Co Ltd 横断流送風機
JP2012145250A (ja) * 2011-01-11 2012-08-02 Sharp Corp 空気調和機

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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