EP3048375B1 - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- EP3048375B1 EP3048375B1 EP13893750.3A EP13893750A EP3048375B1 EP 3048375 B1 EP3048375 B1 EP 3048375B1 EP 13893750 A EP13893750 A EP 13893750A EP 3048375 B1 EP3048375 B1 EP 3048375B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- air
- duct wall
- air duct
- outlet
- 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
Links
- 238000004378 air conditioning Methods 0.000 claims description 47
- 230000005494 condensation Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 8
- 238000007664 blowing Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- 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
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- 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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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- 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
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
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- 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
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
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- 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
-
- 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
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
-
- 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
- F24F2013/247—Active noise-suppression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
Definitions
- the present invention relates to an air conditioning apparatus.
- Patent Literature 1 As a ceiling-concealed air conditioning apparatus of the related art, for example, an air conditioning apparatus disclosed in Patent Literature 1 is known.
- an airflow direction adjusting member having a flattened lower surface is arranged at an air outlet, and a convex surface is formed at an air blower-side upper end of an air duct wall that defines an air outlet channel at an upstream side of the air outlet.
- an interior panel suitable for an air conditioner and relating to the type having a couple of juxtaposed air inlet and air outlet is known (see e.g. Patent Literature 2, which discloses all the features of the preamble of claim 1).
- the airflow rate may be insufficient and noise may be generated due to the airflow resistance caused at the air outlet.
- the air current may be separated at an inlet portion of the air outlet when the air passing through a heat exchanger is caused to flow into the air outlet. That is, when the air current is separated, the airflow resistance is increased, thereby causing decrease in airflow rate and increase in noise.
- the present invention has been made in view of the above-mentioned circumstances, and it is therefore an object of the present invention to provide an air conditioning apparatus capable of suppressing increase in airflow resistance, thereby being capable of securing a sufficient airflow rate and reducing noise.
- an air conditioning apparatus including: a main body having at least one air inlet and at least one air outlet each being formed at a lower part of the main body; and a heat exchanger housed inside the main body and arranged in a flow passage of air to be sucked into the main body through the air inlet and blown out to a target space through the air outlet, in which the air outlet is formed between a heat exchanger outlet-side air duct wall and an opposing air duct wall, which is opposed to the heat exchanger outlet-side air duct wall, and in which a thickness L1 of the heat exchanger outlet-side air duct wall is 0.15L2 to 0.25L2, where L2 represents an inlet width of the air outlet.
- an upper end of the heat exchanger outlet-side air duct wall includes, in an air outlet-side region thereof, a curved surface portion formed of a curved surface, which is convex toward an air duct side.
- a range L3 of the curved surface portion in a thickness direction is equal to or larger than 0.4L1.
- a part of the curved surface portion, which is positioned at each end portion of the heat exchanger outlet-side air duct wall in a longitudinal direction, is larger than a part of the curved surface portion, which is positioned at a center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction.
- a thickness L1' of the heat exchanger outlet-side air duct wall at the each end portion in the longitudinal direction is larger than the thickness L1 of the heat exchanger outlet-side air duct wall at the center portion in the longitudinal direction.
- an upper end of the heat exchanger outlet-side air duct wall may include a curved surface portion and a flat surface portion.
- the curved surface portion may be formed of a curved surface, which is convex toward an air duct side, and be positioned at the upper end of the heat exchanger outlet-side air duct wall, which is close to a center portion of the air outlet.
- the flat surface portion may be positioned at the upper end of the heat exchanger outlet-side air duct wall, which is closer to the heat exchanger than the curved surface portion.
- the heat exchanger outlet-side air duct wall may include a curved surface portion and a flat surface portion.
- the curved surf ace portion may be formed of a curved surface, which is convex toward an air duct side, and be positioned at an upper end of the heat exchanger outlet-side air duct wall.
- the flat surface portion may be positioned closer to a center portion of the air outlet than the curved surface portion, and be positioned at an end of an upstream side of the heat exchanger outlet-side air duct wall in a region opposed to the opposing air duct wall.
- the heat exchanger outlet-side air duct wall may include a stepped portion.
- the stepped portion may be positioned at the heat exchanger outlet-side air duct wall in a region opposed to the opposing air duct wall.
- a region below the stepped portion of the heat exchanger outlet-side air duct wall may be concave away from the opposing air duct wall.
- a distance L5 between the heat exchanger outlet-side air duct wall and the heat exchanger may preferably be smaller than the thickness L1 of the heat exchanger outlet-side air duct wall.
- FIG. 1 is a schematic side view illustrating an internal structure of an air conditioning apparatus according to a first embodiment. More specifically, the air conditioning apparatus according to the first embodiment corresponds to an indoor unit of a so-called package air conditioner.
- FIG. 1 illustrates a state in which a principal part of a main body of the air conditioning apparatus is embedded in a ceiling of a room and a lower part of the main body faces the inside of the room.
- the ceiling-concealed air conditioning apparatus includes a main body 20 and a heat exchanger 3.
- the main body 20 of the air conditioning apparatus is embedded at a back side of a ceiling surface 15 of the room (opposite side to the room) being a target space.
- the main body 20 includes a main-body top panel 5 having a rectangular shape in plan view, and four main-body side panels 4 extending downward from four sides of the main-body top panel 5.
- the main body 20 is such a casing that an upper end surface of a rectangular tube body defined by the four main-body side panels 4 is closed by the main-body top panel 5.
- a decorative panel 6 is mounted on the main body in a freely removable manner. As illustrated in FIG. 1 , the main-body top panel 5 is positioned above the ceiling surface 15, whereas the decorative panel 6 is positioned substantially flush with the ceiling surface 15.
- the main body 20 of the air conditioning apparatus has at least one air inlet and at least one air outlet 9.
- a suction grille 7 is provided as the inlet of air into the main body.
- a filter 8 for removing dust in the air passing through the suction grille 7 is provided at an inner side of the suction grille 7.
- the decorative panel 6 and the suction grille 7 each have a rectangular outer edge in plan view.
- a plurality of air outlets 9 are formed as the outlets of the air.
- four air outlets 9 are formed in accordance with the structure in which the decorative panel 15 and the suction grille 7 each have the outer edge along four sides thereof, and the respective air outlets 9 are arranged so as to extend along the corresponding sides of the decorative panel 6 and the suction grille 7. Further, the four air outlets 9 are positioned so as to surround the suction grille 7.
- An airflow direction flap 13 for adjusting a direction of the air to be blown out is provided at each air outlet 9.
- a fan motor 2 is arranged at a center portion of the inside of the main body.
- the fan motor 2 is supported by a lower surface of the main-body top panel 5 (at an inner space side of the main body) .
- a turbofan 1 serving as an air blowing section is fixed to a rotational shaft of the fan motor 2, which extends downward.
- a bellmouth 14 that defines a suction air duct extending from the suction grille 7 toward the turbofan 1 is provided between the turbofan 1 and the suction grille 7.
- the turbofan 1 sucks the air into the main body through the suction grille 7, and causes the air to flow out to an inside 17 of the room being the target space through the air outlet 9.
- the heat exchanger 3 is arranged at a radially outer side of the turbofan 1.
- the heat exchanger 3 is housed inside the main body 20, in particular, arranged in a flow passage of the air to be sucked into the main body 20 through the air inlet (suction grille 7) and blown out to the target space through the air outlet 9, to thereby exchange heat between the air and a refrigerant.
- the heat exchanger 3 includes a plurality of fins arranged at predetermined intervals in a horizontal direction, and heat transfer pipes passing through the fins.
- the heat transfer pipes are connected to a known outdoor unit (not shown) through a connection pipe so that a cooled or heated refrigerant is supplied to the heat exchanger 3.
- the structures and shapes of the turbofan 1, the bellmouth 14, and the heat exchanger 3 are not particularly limited, but known structures and shapes are employed in the first embodiment.
- the turbofan 1 when the turbofan 1 is rotated, the air in the inside 17 of the room is sucked into the suction grille 7 of the decorative panel 6. Then, the air from which the dust is removed by the filter 8 is guided by the bellmouth 14 that defines the air inlet of the main body, and is then sucked into the turbofan 1. Further, the air sucked into the turbofan 1 from bottom to top is blown out in a horizontal and radially outward direction. When the air thus blown out passes through the heat exchanger 3, the heat is exchanged and the humidity is adjusted. After that, the air is blown out to the inside 17 of the room through each air outlet 9 with the flow direction switched to a downward direction.
- FIG. 2 is a view illustrating a vertical section of one air outlet 9 according to the first embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in a longitudinal direction (direction orthogonal to both of a vertical direction and a width direction: lengthwise direction).
- the air outlet 9 is formed between the heat exchanger 3 and the main-body side panel 4 in plan view. More specifically, as illustrated in FIG. 2 , the air outlet 9 is formed between a heat exchanger outlet-side air duct wall 10 and an opposing air duct wall 11, which is opposed to the heat exchanger outlet-side air duct wall 10. A part of the air outlet 9 at the center side of the main body (heat exchanger side or air blower side) is defined by the heat exchanger outlet-side air duct wall 10, whereas a part of the air outlet 9 at the outer edge side of the decorative panel 6 is defined by the opposing air duct wall 11 formed at the main-body side panel side.
- Both ends of the heat exchanger outlet-side air duct wall 10 and both ends of the opposing air duct wall 11 are connected to each other by a pair of side walls (wall portions represented by reference symbol 12 in FIG. 10 ).
- the air current passing through the heat exchanger 3 is caused to flow into the air outlet 9 from the heat exchanger outlet-side air duct wall 10 side.
- FIG. 3 shows a relationship between L1/L2 and the airflow rate.
- L1 is set within a range of from 0.15L2 to 0.25L2.
- FIG. 3 shows a relationship between L1/L2 and the airflow rate.
- the air current is significantly separated at the inlet portion of the air outlet 9 when the air current is caused to flow into the air outlet 9, and hence the airflow resistance is increased, thereby causing decrease in airflow rate.
- the air duct width is decreased, and hence the airflow resistance is increased, thereby causing the decrease in airflow rate.
- L1 falls within the range of from 0.15L2 to 0.25L2 as in the embodiments of present invention, a sufficient airflow rate is secured.
- the thickness L1 of the heat exchanger outlet-side air duct wall 10 is set within the range of from 0.15L2 to 0.25L2, thereby being capable of suppressing the increase in airflow resistance, which may be caused by the separation of the air current, and also suppressing the increase in airflow resistance, which may be caused by the decrease in size of the air outlet.
- it is possible to secure a sufficient airflow rate, reduce noise, and to achieve a high power saving rate.
- decrease in air velocity can be suppressed through the suppression of the separation of the air current, with the result that dew condensation on the airflow direction flap, which may be caused by undesired intake of the air from the inside of the room, can be prevented.
- FIG. 4 is a view illustrating a vertical section of one air outlet 9 according to the second embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in a longitudinal direction.
- a curved surface portion 121 is formed in an air outlet-side region of an upper end of a heat exchanger outlet-side air duct wall 110 that defines the air outlet 9 (at a downstream side of the air current flowing out of the heat exchanger down along the air outlet).
- the curved surface portion 121 is formed of a curved surface that is convex upward (toward the outer side of the air duct wall or the air duct side instead of the inner side of the air duct wall) .
- a range L3 of the curved surface portion 121 in a thickness direction is equal to or larger than 0.4L1.
- the curved surface portion 121 may be formed with at least one curvature radius, or may be formed of a curved surface having a radius that continuously changes. Note that, L3 equals L1 at a maximum (L3 ⁇ L1).
- FIG. 5 shows a relationship between L3/L1 and the airflow rate.
- the airflow rate is increased as L3 is larger.
- the airflow rate is substantially constant irrespective of L3.
- the range L3 of the curved surface portion 121 in the thickness direction is set equal to or larger than 0.4L1 so that a substantially constant and high airflow rate may be maintained.
- An additional feature which according to the invention is combined to the features described in this second embodiment, consists in that a part of the curved surface portion, which is positioned at each end portion of the heat exchanger outlet-side air duct wall in a longitudinal direction, is larger than a part of the curved surface portion, which is positioned at a center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction.
- the air conditioning apparatus of the second embodiment which is constructed as described above, similar advantages to the advantages of the first embodiment described above are attained.
- the upper end of the heat exchanger outlet-side air duct wall 110 is formed into the curved surface shape, and thus the separation of the air current can be suppressed, thereby being capable of suppressing the increase in airflow resistance.
- FIG. 6 is a view illustrating a vertical section of one air outlet 9 according to the third embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in the longitudinal direction. Note that, an air conditioning apparatus of the third embodiment is similar to the air conditioning apparatus of the first or second embodiment except for the parts described below.
- a curved surface portion 221 and a flat surface portion 223 are formed at an upper end of a heat exchanger outlet-side air duct wall 210.
- the curved surface portion 221 is positioned at the upper end of the heat exchanger outlet-side air duct wall 210, which is close to a center portion of the air outlet 9, whereas the flat surface portion 223 is positioned at the upper end of the heat exchanger outlet-side air duct wall 210, which is closer to the heat exchanger 3 than the curved surface portion 221 (which is spaced away from the center portion of the air outlet 9), namely, positioned at an upstream side of the air current flowing out of the heat exchanger 3 down along the air outlet 9.
- the curved surface portion 221 is formed of a curved surface that is convex upward.
- the flat surface portion 223 is formed continuous with the curved surface portion 221. It is desired that a range L4 of the flat surface portion 223 in the thickness direction be equal to or larger than 1 mm.
- the flat surface portion 223 is formed at the upstream side of the curved surface portion 221 of the upper end of the heat exchanger outlet-side air duct wall 210, and thus the air current before flowing toward the curved surface portion 221 easily adheres to the wall surface of the heat exchanger outlet-side air duct wall 210, thereby being capable of further suppressing the separation of the air current at the curved surface portion 221.
- FIG. 7 is a view illustrating a vertical section of one air outlet 9 according to the fourth embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in the longitudinal direction. Note that, an air conditioning apparatus of the fourth embodiment is similar to the air conditioning apparatus of any one of the first to third embodiments except for the parts described below.
- a heat exchanger outlet-side air duct wall 310 of the air conditioning apparatus of the fourth embodiment has a curved surface portion 321 and a flat surface portion 325.
- the curved surface portion 321 is positioned at an upper end of the heat exchanger outlet-side air duct wall 310.
- the curved surface portion 321 is formed of a curved surface that is convex upward.
- the flat surface portion 325 is positioned closer to the center portion of the air outlet 9 than the curved surface portion 321, namely, positioned at the downstream side of the air current flowing out of the heat exchanger 3 down along the air outlet 9.
- the flat surface portion 325 is positioned in an immediately downstream region of the upper end of the heat exchanger outlet-side air duct wall 310, namely, positioned at the end of the upstream side of the heat exchanger outlet-side air duct wall 310 in a region opposed to the opposing air duct wall 11.
- the flat surface portion 325 is formed continuous with the curved surface portion 321.
- the flat surface portion 325 is formed at the downstream side of the curved surface portion 321 of the upper end of the heat exchanger outlet-side air duct wall 310, and thus, even when the air current is separated at the curved surface portion 321, re-adhesion of the air current can be promoted.
- FIG. 8 is a view illustrating a vertical section of one air outlet 9 according to the fifth embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in the longitudinal direction. Note that, an air conditioning apparatus of the fifth embodiment is similar to the air conditioning apparatus of any one of the first to fourth embodiments except for the parts described below.
- a heat exchanger outlet-side air duct wall 410 of the air conditioning apparatus of the fifth embodiment has a stepped portion 427 formed thereon.
- the stepped portion 427 is positioned at the heat exchanger outlet-side air duct wall 410 in a region opposed to the opposing air duct wall 11.
- a region below the stepped portion 427 of the heat exchanger outlet-side air duct wall 410 (at the downstream side of the air current flowing out of the heat exchanger 3 down along the air outlet 9) is concave away from the opposing air duct wall 11.
- the air conditioning apparatus of the fifth embodiment which is constructed as described above, similar advantages to the advantages of any one of the corresponding first to fourth embodiments described above are attained.
- the vortex can be suppressed by the stepped portion 427. Also in this case, it is possible to enhance the power saving rate, reduce the air blowing noise, and to prevent the dew condensation, which may be caused by undesired intake of the air from the inside of the room.
- FIG. 9 is a view illustrating a vertical section of one air outlet 9 according to the sixth embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in the longitudinal direction. Note that, an air conditioning apparatus of the sixth embodiment is similar to the air conditioning apparatus of any one of the first to fifth embodiments except for the parts described below. Further, FIG. 9 only illustrates an example, which is a structure obtained by combining the fifth embodiment with the fourth embodiment described above.
- a distance L5 between a heat exchanger outlet-side air duct wall 510 and the heat exchanger 3 is set smaller than a thickness L1 of the heat exchanger outlet-side air duct wall 510.
- the distance L5 between the heat exchanger outlet-side air duct wall 510 and the heat exchanger 3 is smaller than the thickness L1 of the heat exchanger outlet-side air duct wall 10, and thus the amount of air current passing through the heat exchanger 3 at a position lower than an upper end of the heat exchanger outlet-side air duct wall 510 can be reduced, thereby being capable of suppressing the separation of the air current when the air current flows over the heat exchanger outlet-side air duct wall 510.
- FIG. 10 is a top view illustrating one air outlet 9 according to the seventh embodiment of the present invention.
- an air conditioning apparatus of the seventh embodiment is similar to the air conditioning apparatus of any one of the first to sixth embodiments except for the parts described below. Further, it is assumed that the features of the first to sixth embodiments are applied to a center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction.
- the air outlet 9 is defined, in plan view, by a heat exchanger outlet-side air duct wall 610, the opposing air duct wall 11, and the pair of side walls 12 connecting both ends of the heat exchanger outlet-side air duct wall 610 and both ends of the opposing air duct wall 11 to each other.
- a thickness L1' of the heat exchanger outlet-side air duct wall 610 at each end portion in the longitudinal direction is set larger than a thickness L1 of the heat exchanger outlet-side air duct wall 610 at the center portion in the longitudinal direction.
- the air conditioning apparatus of the seventh embodiment which is constructed as described above, similar advantages to the advantages of any one of the corresponding first to sixth embodiments described above are attained.
- the following advantages are attained as well. That is, considering the flow of the air current at the entire air outlet 9, at both end portions of the air outlet 9 in the longitudinal direction, the air is caused to flow not only from the side of the heat exchanger outlet-side air duct wall 610 but also from the side of the pair of side walls 12. Therefore, at both end portions of the air outlet 9 in the longitudinal direction, the air current is more liable to be separated than at the center portion of the air outlet 9 in the longitudinal direction.
- the thickness L1' of the heat exchanger outlet-side air duct wall 610 at each end portion in the longitudinal direction is set larger than the thickness L1 of the heat exchanger outlet-side air duct wall 610 at the center portion in the longitudinal direction, and thus the amount of air current flowing into the air outlet 9 at each end portion in the longitudinal direction can be reduced, thereby being capable of suppressing the separation of the air current in the entire region in the longitudinal direction.
- an eighth embodiment of the present invention is described. Note that the combination of features described in this and in the second embodiment is according to the invention, and that, an air conditioning apparatus of the eighth embodiment is similar to the air conditioning apparatus of any one of the first to seventh embodiments except for the parts described below. Further, it is assumed that the features of the first to seventh embodiments are applied to a center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction.
- the eighth embodiment has a feature in that, in the curved surface portion formed at the upper end of the heat exchanger outlet-side air duct wall of the air outlet 9 according to any one of the first to seventh embodiments, a part of the curved surface portion, which is positioned at each end portion of the heat exchanger outlet-side air duct wall in the longitudinal direction, is larger than a part of the curved surface portion, which is positioned at the center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction.
- the size of the curved surface portion is determined based on comparison in any one of the size of the convex portion that defines the curved surface portion, the width of the heat exchanger outlet-side air duct wall in the region including the curved surface portion, the range of formation of the curved surface portion of the heat exchanger outlet-side air duct wall in the vertical direction, and the range of occupation of the curved surface portion in side view (in the view of FIG. 2 ).
- FIG. 10 also illustrates one aspect of the eighth embodiment in the case of comparison in the width of the heat exchanger outlet-side air duct wall in the region including the curved surface portion.
- the present invention is widely applicable to an indoor unit that constructs a refrigeration cycle system, such as an indoor unit of an air conditioning apparatus, or various other apparatus and facilities in which an air blower is installed.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Duct Arrangements (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Description
- The present invention relates to an air conditioning apparatus.
- As a ceiling-concealed air conditioning apparatus of the related art, for example, an air conditioning apparatus disclosed in Patent Literature 1 is known. In this air conditioning apparatus, an airflow direction adjusting member having a flattened lower surface is arranged at an air outlet, and a convex surface is formed at an air blower-side upper end of an air duct wall that defines an air outlet channel at an upstream side of the air outlet. Furthermore, an interior panel suitable for an air conditioner and relating to the type having a couple of juxtaposed air inlet and air outlet is known (see
e.g. Patent Literature 2, which discloses all the features of the preamble of claim 1). -
- [PTL 1]
JP 2012-251676 A FIG. 1 ) - [PTL 2]
EP 1 947 397 A1 - In the ceiling-concealed air conditioning apparatus of the related art, however, there is a problem in that the airflow rate may be insufficient and noise may be generated due to the airflow resistance caused at the air outlet. As one factor of this problem, for example, the air current may be separated at an inlet portion of the air outlet when the air passing through a heat exchanger is caused to flow into the air outlet. That is, when the air current is separated, the airflow resistance is increased, thereby causing decrease in airflow rate and increase in noise.
- Further, to address such a problem, in the above-mentioned air conditioning apparatus disclosed in Patent Literature 1, the shape of the air duct wall is merely devised, but no further consideration is given so as to secure the airflow rate and reduce the noise.
- The present invention has been made in view of the above-mentioned circumstances, and it is therefore an object of the present invention to provide an air conditioning apparatus capable of suppressing increase in airflow resistance, thereby being capable of securing a sufficient airflow rate and reducing noise. Solution to Problem
- In order to achieve the above-mentioned object, an air conditioning apparatus according to claim 1 is provided. Dependent claims 2 and 3 provide preferred embodiments of the invention. According to the present invention, there is provided an air conditioning apparatus, including: a main body having at least one air inlet and at least one air outlet each being formed at a lower part of the main body; and a heat exchanger housed inside the main body and arranged in a flow passage of air to be sucked into the main body through the air inlet and blown out to a target space through the air outlet, in which the air outlet is formed between a heat exchanger outlet-side air duct wall and an opposing air duct wall, which is opposed to the heat exchanger outlet-side air duct wall, and in which a thickness L1 of the heat exchanger outlet-side air duct wall is 0.15L2 to 0.25L2, where L2 represents an inlet width of the air outlet.
- According to an embodiment of the invention, an upper end of the heat exchanger outlet-side air duct wall includes, in an air outlet-side region thereof, a curved surface portion formed of a curved surface, which is convex toward an air duct side. A range L3 of the curved surface portion in a thickness direction is equal to or larger than 0.4L1.
- According to this embodiment, a part of the curved surface portion, which is positioned at each end portion of the heat exchanger outlet-side air duct wall in a longitudinal direction, is larger than a part of the curved surface portion, which is positioned at a center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction.
- According to another embodiment of the invention, a thickness L1' of the heat exchanger outlet-side air duct wall at the each end portion in the longitudinal direction is larger than the thickness L1 of the heat exchanger outlet-side air duct wall at the center portion in the longitudinal direction.
- Although not claimed for this invention, an upper end of the heat exchanger outlet-side air duct wall may include a curved surface portion and a flat surface portion. The curved surface portion may be formed of a curved surface, which is convex toward an air duct side, and be positioned at the upper end of the heat exchanger outlet-side air duct wall, which is close to a center portion of the air outlet. The flat surface portion may be positioned at the upper end of the heat exchanger outlet-side air duct wall, which is closer to the heat exchanger than the curved surface portion.
- Although not claimed for this invention, the heat exchanger outlet-side air duct wall may include a curved surface portion and a flat surface portion. The curved surf ace portion may be formed of a curved surface, which is convex toward an air duct side, and be positioned at an upper end of the heat exchanger outlet-side air duct wall. The flat surface portion may be positioned closer to a center portion of the air outlet than the curved surface portion, and be positioned at an end of an upstream side of the heat exchanger outlet-side air duct wall in a region opposed to the opposing air duct wall.
- Preferably, the heat exchanger outlet-side air duct wall may include a stepped portion. The stepped portion may be positioned at the heat exchanger outlet-side air duct wall in a region opposed to the opposing air duct wall. A region below the stepped portion of the heat exchanger outlet-side air duct wall may be concave away from the opposing air duct wall.
- Additionally, a distance L5 between the heat exchanger outlet-side air duct wall and the heat exchanger may preferably be smaller than the thickness L1 of the heat exchanger outlet-side air duct wall.
- According to the present invention, it is possible to suppress increase in airflow resistance, to thereby secure a sufficient airflow rate and reduce noise.
-
-
FIG. 1 is a side view illustrating an internal structure of an air conditioning apparatus showing some of the features of the present invention. -
FIG. 2 is a side view illustrating an air outlet of the air conditioning apparatus helpful for understanding some of the features of the present invention -
FIG. 3 is a graph showing characteristics of a change in airflow rate with respect to L1/L2 in the air conditioning apparatus according toFIG. 2 . -
FIG. 4 is a view illustrating an embodiment of the present invention in the same manner as that ofFIG. 2 . -
FIG. 5 is a graph showing characteristics of a change in airflow rate with respect to L3/L1 in an air conditioning apparatus according to an embodiment. -
FIG. 6 is a view illustrating an air outlet of an air conditioning apparatus in the same manner as that ofFIG. 2 . -
FIG. 7 is a view illustrating an air outlet of an air conditioner in the same manner as that ofFIG. 2 .FIG. 8 is a view illustrating a preferred embodiment of the present invention -
FIG. 9 is a view illustrating another preferred embodiment of the present invention -
FIG. 10 is a top view illustrating an air outlet of an air conditioning apparatus according to an embodiment of the present invention. - Now, an air conditioning apparatus according to embodiments of the present invention is described with reference to the accompanying drawings. Note that only the embodiments showing all features as defined in the claims are according to the invention. Embodiments not showing these features are not according to the invention but helpful for its understanding.
- Also note that, in the drawings, the same reference symbols represent the same or corresponding parts.
-
FIG. 1 is a schematic side view illustrating an internal structure of an air conditioning apparatus according to a first embodiment. More specifically, the air conditioning apparatus according to the first embodiment corresponds to an indoor unit of a so-called package air conditioner.FIG. 1 illustrates a state in which a principal part of a main body of the air conditioning apparatus is embedded in a ceiling of a room and a lower part of the main body faces the inside of the room. - The ceiling-concealed air conditioning apparatus includes a
main body 20 and aheat exchanger 3. Themain body 20 of the air conditioning apparatus is embedded at a back side of aceiling surface 15 of the room (opposite side to the room) being a target space. - As one exemple, in the first embodiment, the
main body 20 includes a main-body top panel 5 having a rectangular shape in plan view, and four main-body side panels 4 extending downward from four sides of the main-body top panel 5. In other words, themain body 20 is such a casing that an upper end surface of a rectangular tube body defined by the four main-body side panels 4 is closed by the main-body top panel 5. - At the lower part of the main body, namely, at an opened lower end surface of the above-mentioned casing, a
decorative panel 6 is mounted on the main body in a freely removable manner. As illustrated inFIG. 1 , the main-body top panel 5 is positioned above theceiling surface 15, whereas thedecorative panel 6 is positioned substantially flush with theceiling surface 15. - Further, the
main body 20 of the air conditioning apparatus has at least one air inlet and at least oneair outlet 9. In the vicinity of a center of thedecorative panel 6, asuction grille 7 is provided as the inlet of air into the main body. Afilter 8 for removing dust in the air passing through thesuction grille 7 is provided at an inner side of thesuction grille 7. - As one example, in the first embodiment, the
decorative panel 6 and thesuction grille 7 each have a rectangular outer edge in plan view. - In a region between the outer edge of the
decorative panel 6 and the outer edge of thesuction grille 7, a plurality ofair outlets 9 are formed as the outlets of the air. In the first embodiment, fourair outlets 9 are formed in accordance with the structure in which thedecorative panel 15 and thesuction grille 7 each have the outer edge along four sides thereof, and therespective air outlets 9 are arranged so as to extend along the corresponding sides of thedecorative panel 6 and thesuction grille 7. Further, the fourair outlets 9 are positioned so as to surround thesuction grille 7. Anairflow direction flap 13 for adjusting a direction of the air to be blown out is provided at eachair outlet 9. - A
fan motor 2 is arranged at a center portion of the inside of the main body. Thefan motor 2 is supported by a lower surface of the main-body top panel 5 (at an inner space side of the main body) . A turbofan 1 serving as an air blowing section is fixed to a rotational shaft of thefan motor 2, which extends downward. Further, abellmouth 14 that defines a suction air duct extending from thesuction grille 7 toward the turbofan 1 is provided between the turbofan 1 and thesuction grille 7. The turbofan 1 sucks the air into the main body through thesuction grille 7, and causes the air to flow out to an inside 17 of the room being the target space through theair outlet 9. - The
heat exchanger 3 is arranged at a radially outer side of the turbofan 1. In other words, theheat exchanger 3 is housed inside themain body 20, in particular, arranged in a flow passage of the air to be sucked into themain body 20 through the air inlet (suction grille 7) and blown out to the target space through theair outlet 9, to thereby exchange heat between the air and a refrigerant. - The
heat exchanger 3 includes a plurality of fins arranged at predetermined intervals in a horizontal direction, and heat transfer pipes passing through the fins. The heat transfer pipes are connected to a known outdoor unit (not shown) through a connection pipe so that a cooled or heated refrigerant is supplied to theheat exchanger 3. Note that, the structures and shapes of the turbofan 1, thebellmouth 14, and theheat exchanger 3 are not particularly limited, but known structures and shapes are employed in the first embodiment. - In this structure, when the turbofan 1 is rotated, the air in the inside 17 of the room is sucked into the
suction grille 7 of thedecorative panel 6. Then, the air from which the dust is removed by thefilter 8 is guided by thebellmouth 14 that defines the air inlet of the main body, and is then sucked into the turbofan 1. Further, the air sucked into the turbofan 1 from bottom to top is blown out in a horizontal and radially outward direction. When the air thus blown out passes through theheat exchanger 3, the heat is exchanged and the humidity is adjusted. After that, the air is blown out to the inside 17 of the room through eachair outlet 9 with the flow direction switched to a downward direction. - Next, details of the
air outlet 9 are described with reference toFIGS. 1 to 3 .FIG. 2 is a view illustrating a vertical section of oneair outlet 9 according to the first embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in a longitudinal direction (direction orthogonal to both of a vertical direction and a width direction: lengthwise direction). - As illustrated in
FIG. 1 , theair outlet 9 is formed between theheat exchanger 3 and the main-body side panel 4 in plan view. More specifically, as illustrated inFIG. 2 , theair outlet 9 is formed between a heat exchanger outlet-sideair duct wall 10 and an opposingair duct wall 11, which is opposed to the heat exchanger outlet-sideair duct wall 10. A part of theair outlet 9 at the center side of the main body (heat exchanger side or air blower side) is defined by the heat exchanger outlet-sideair duct wall 10, whereas a part of theair outlet 9 at the outer edge side of thedecorative panel 6 is defined by the opposingair duct wall 11 formed at the main-body side panel side. Both ends of the heat exchanger outlet-sideair duct wall 10 and both ends of the opposingair duct wall 11 are connected to each other by a pair of side walls (wall portions represented byreference symbol 12 inFIG. 10 ). The air current passing through theheat exchanger 3 is caused to flow into theair outlet 9 from the heat exchanger outlet-sideair duct wall 10 side. - According to the invention, assuming that the thickness of the heat exchanger outlet-side
air duct wall 10 of theair outlet 9 is defined as L1 and the inlet width of theair outlet 9 is defined as L2, L1 is set within a range of from 0.15L2 to 0.25L2.FIG. 3 shows a relationship between L1/L2 and the airflow rate. As shown inFIG. 3 , in a case where the thickness L1 of the heat exchanger outlet-sideair duct wall 10 is smaller than 0.15L2, the air current is significantly separated at the inlet portion of theair outlet 9 when the air current is caused to flow into theair outlet 9, and hence the airflow resistance is increased, thereby causing decrease in airflow rate. In a case where the thickness L1 of the heat exchanger outlet-sideair duct wall 10 is larger than 0.25L2, on the other hand, the air duct width is decreased, and hence the airflow resistance is increased, thereby causing the decrease in airflow rate. In contrast, when L1 falls within the range of from 0.15L2 to 0.25L2 as in the embodiments of present invention, a sufficient airflow rate is secured. - According to the invention the thickness L1 of the heat exchanger outlet-side
air duct wall 10 is set within the range of from 0.15L2 to 0.25L2, thereby being capable of suppressing the increase in airflow resistance, which may be caused by the separation of the air current, and also suppressing the increase in airflow resistance, which may be caused by the decrease in size of the air outlet. Thus, it is possible to secure a sufficient airflow rate, reduce noise, and to achieve a high power saving rate. Further, decrease in air velocity can be suppressed through the suppression of the separation of the air current, with the result that dew condensation on the airflow direction flap, which may be caused by undesired intake of the air from the inside of the room, can be prevented. - Next, a second embodiment which shows part of the features according to the present invention is described with reference to
FIGS. 4 and 5. FIG. 4 is a view illustrating a vertical section of oneair outlet 9 according to the second embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in a longitudinal direction. - In the second embodiment, a
curved surface portion 121 is formed in an air outlet-side region of an upper end of a heat exchanger outlet-sideair duct wall 110 that defines the air outlet 9 (at a downstream side of the air current flowing out of the heat exchanger down along the air outlet). Thecurved surface portion 121 is formed of a curved surface that is convex upward (toward the outer side of the air duct wall or the air duct side instead of the inner side of the air duct wall) . A range L3 of thecurved surface portion 121 in a thickness direction is equal to or larger than 0.4L1. For example, thecurved surface portion 121 may be formed with at least one curvature radius, or may be formed of a curved surface having a radius that continuously changes. Note that, L3 equals L1 at a maximum (L3≤L1). -
FIG. 5 shows a relationship between L3/L1 and the airflow rate. As shown inFIG. 5 , in a case of L3/L1<0.4, the airflow rate is increased as L3 is larger. In a case of L3/L1≥0.4, on the other hand, the airflow rate is substantially constant irrespective of L3. Thus, in the second embodiment, the range L3 of thecurved surface portion 121 in the thickness direction is set equal to or larger than 0.4L1 so that a substantially constant and high airflow rate may be maintained. - An additional feature (see description of the eight embodiment) which according to the invention is combined to the features described in this second embodiment, consists in that a part of the curved surface portion, which is positioned at each end portion of the heat exchanger outlet-side air duct wall in a longitudinal direction, is larger than a part of the curved surface portion, which is positioned at a center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction.
- Also in the air conditioning apparatus of the second embodiment, which is constructed as described above, similar advantages to the advantages of the first embodiment described above are attained. In addition, in the second embodiment, the upper end of the heat exchanger outlet-side
air duct wall 110 is formed into the curved surface shape, and thus the separation of the air current can be suppressed, thereby being capable of suppressing the increase in airflow resistance. Thus, it is possible to further enhance the power saving rate, reduce the air blowing noise, and to prevent the dew condensation, which may be caused by undesired intake of the air from the inside of the room. - Third Embodiment Next, a third embodiment not according to but helpful for understanding further features of the present invention is described with reference to
FIG. 6. FIG. 6 is a view illustrating a vertical section of oneair outlet 9 according to the third embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in the longitudinal direction. Note that, an air conditioning apparatus of the third embodiment is similar to the air conditioning apparatus of the first or second embodiment except for the parts described below. - In the air conditioning apparatus of the third embodiment, a
curved surface portion 221 and aflat surface portion 223 are formed at an upper end of a heat exchanger outlet-sideair duct wall 210. Thecurved surface portion 221 is positioned at the upper end of the heat exchanger outlet-sideair duct wall 210, which is close to a center portion of theair outlet 9, whereas theflat surface portion 223 is positioned at the upper end of the heat exchanger outlet-sideair duct wall 210, which is closer to theheat exchanger 3 than the curved surface portion 221 (which is spaced away from the center portion of the air outlet 9), namely, positioned at an upstream side of the air current flowing out of theheat exchanger 3 down along theair outlet 9. Thecurved surface portion 221 is formed of a curved surface that is convex upward. Theflat surface portion 223 is formed continuous with thecurved surface portion 221. It is desired that a range L4 of theflat surface portion 223 in the thickness direction be equal to or larger than 1 mm. - According to this embodiment, the
flat surface portion 223 is formed at the upstream side of thecurved surface portion 221 of the upper end of the heat exchanger outlet-sideair duct wall 210, and thus the air current before flowing toward thecurved surface portion 221 easily adheres to the wall surface of the heat exchanger outlet-sideair duct wall 210, thereby being capable of further suppressing the separation of the air current at thecurved surface portion 221. Thus, it is possible to further enhance the power saving rate, reduce the air blowing noise, and to prevent the dew condensation, which may be caused by undesired intake of the air from the inside of the room. - Next, a fourth embodiment not according to but helpful for understanding further features of the present invention is described with reference to
FIG. 7. FIG. 7 is a view illustrating a vertical section of oneair outlet 9 according to the fourth embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in the longitudinal direction. Note that, an air conditioning apparatus of the fourth embodiment is similar to the air conditioning apparatus of any one of the first to third embodiments except for the parts described below. - A heat exchanger outlet-side
air duct wall 310 of the air conditioning apparatus of the fourth embodiment has acurved surface portion 321 and aflat surface portion 325. Thecurved surface portion 321 is positioned at an upper end of the heat exchanger outlet-sideair duct wall 310. Thecurved surface portion 321 is formed of a curved surface that is convex upward. Theflat surface portion 325 is positioned closer to the center portion of theair outlet 9 than thecurved surface portion 321, namely, positioned at the downstream side of the air current flowing out of theheat exchanger 3 down along theair outlet 9. In addition, theflat surface portion 325 is positioned in an immediately downstream region of the upper end of the heat exchanger outlet-sideair duct wall 310, namely, positioned at the end of the upstream side of the heat exchanger outlet-sideair duct wall 310 in a region opposed to the opposingair duct wall 11. Theflat surface portion 325 is formed continuous with thecurved surface portion 321. - According to this embodiment, the
flat surface portion 325 is formed at the downstream side of thecurved surface portion 321 of the upper end of the heat exchanger outlet-sideair duct wall 310, and thus, even when the air current is separated at thecurved surface portion 321, re-adhesion of the air current can be promoted. Thus, it is possible to further enhance the power saving rate, reduce the air blowing noise, and to prevent the dew condensation, which may be caused by undesired intake of the air from the inside of the room. - Next, some of the features of a preferred embodiment of the present invention are described with reference to
FIG. 8. FIG. 8 is a view illustrating a vertical section of oneair outlet 9 according to the fifth embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in the longitudinal direction. Note that, an air conditioning apparatus of the fifth embodiment is similar to the air conditioning apparatus of any one of the first to fourth embodiments except for the parts described below. - A heat exchanger outlet-side
air duct wall 410 of the air conditioning apparatus of the fifth embodiment has a steppedportion 427 formed thereon. The steppedportion 427 is positioned at the heat exchanger outlet-sideair duct wall 410 in a region opposed to the opposingair duct wall 11. A region below the steppedportion 427 of the heat exchanger outlet-side air duct wall 410 (at the downstream side of the air current flowing out of theheat exchanger 3 down along the air outlet 9) is concave away from the opposingair duct wall 11. - Also in the air conditioning apparatus of the fifth embodiment, which is constructed as described above, similar advantages to the advantages of any one of the corresponding first to fourth embodiments described above are attained. In addition, in the fifth embodiment, even when the air current is separated over a range of from an upper end of the heat exchanger outlet-side
air duct wall 410 to the region opposed to the opposingair duct wall 11 and a vortex is generated in the region in which the air current is separated, the vortex can be suppressed by the steppedportion 427. Also in this case, it is possible to enhance the power saving rate, reduce the air blowing noise, and to prevent the dew condensation, which may be caused by undesired intake of the air from the inside of the room. - Next, features of another preferred embodiment of the present invention : are described with reference to
FIG. 9. FIG. 9 is a view illustrating a vertical section of oneair outlet 9 according to the sixth embodiment. Further, in this embodiment, it is assumed that a heat exchanger outlet-side air duct wall has the same vertical section maintained in the longitudinal direction. Note that, an air conditioning apparatus of the sixth embodiment is similar to the air conditioning apparatus of any one of the first to fifth embodiments except for the parts described below. Further,FIG. 9 only illustrates an example, which is a structure obtained by combining the fifth embodiment with the fourth embodiment described above. - In the air conditioning apparatus of the sixth embodiment, a distance L5 between a heat exchanger outlet-side
air duct wall 510 and theheat exchanger 3 is set smaller than a thickness L1 of the heat exchanger outlet-sideair duct wall 510. - Also in the air conditioning apparatus of the sixth embodiment, which is constructed as described above, similar advantages to the advantages of any one of the corresponding first to fifth embodiments described above are attained. In addition, in the sixth embodiment, the distance L5 between the heat exchanger outlet-side
air duct wall 510 and theheat exchanger 3 is smaller than the thickness L1 of the heat exchanger outlet-sideair duct wall 10, and thus the amount of air current passing through theheat exchanger 3 at a position lower than an upper end of the heat exchanger outlet-sideair duct wall 510 can be reduced, thereby being capable of suppressing the separation of the air current when the air current flows over the heat exchanger outlet-sideair duct wall 510. Thus, it is possible to further enhance the power saving rate, reduce the air blowing noise, and to prevent the dew condensation, which may be caused by undesired intake of the air from the inside of the room. - Next, a seventh embodiment which is according to the present invention is described with reference to
FIG. 10. FIG. 10 is a top view illustrating oneair outlet 9 according to the seventh embodiment of the present invention. Note that, an air conditioning apparatus of the seventh embodiment is similar to the air conditioning apparatus of any one of the first to sixth embodiments except for the parts described below. Further, it is assumed that the features of the first to sixth embodiments are applied to a center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction. - As illustrated in
FIG. 10 , theair outlet 9 is defined, in plan view, by a heat exchanger outlet-sideair duct wall 610, the opposingair duct wall 11, and the pair ofside walls 12 connecting both ends of the heat exchanger outlet-sideair duct wall 610 and both ends of the opposingair duct wall 11 to each other. In the seventh embodiment, a thickness L1' of the heat exchanger outlet-sideair duct wall 610 at each end portion in the longitudinal direction is set larger than a thickness L1 of the heat exchanger outlet-sideair duct wall 610 at the center portion in the longitudinal direction. - Also in the air conditioning apparatus of the seventh embodiment, which is constructed as described above, similar advantages to the advantages of any one of the corresponding first to sixth embodiments described above are attained. In addition, in the seventh embodiment, the following advantages are attained as well. That is, considering the flow of the air current at the
entire air outlet 9, at both end portions of theair outlet 9 in the longitudinal direction, the air is caused to flow not only from the side of the heat exchanger outlet-sideair duct wall 610 but also from the side of the pair ofside walls 12. Therefore, at both end portions of theair outlet 9 in the longitudinal direction, the air current is more liable to be separated than at the center portion of theair outlet 9 in the longitudinal direction. In contrast, in the seventh embodiment, the thickness L1' of the heat exchanger outlet-sideair duct wall 610 at each end portion in the longitudinal direction is set larger than the thickness L1 of the heat exchanger outlet-sideair duct wall 610 at the center portion in the longitudinal direction, and thus the amount of air current flowing into theair outlet 9 at each end portion in the longitudinal direction can be reduced, thereby being capable of suppressing the separation of the air current in the entire region in the longitudinal direction. Thus, it is possible to further enhance the power saving rate, reduce the airblowingnoise, and to prevent the dew condensation, which may be caused by undesired intake of the air from the inside of the room. - Next, an eighth embodiment of the present invention is described. Note that the combination of features described in this and in the second embodiment is according to the invention, and that, an air conditioning apparatus of the eighth embodiment is similar to the air conditioning apparatus of any one of the first to seventh embodiments except for the parts described below. Further, it is assumed that the features of the first to seventh embodiments are applied to a center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction.
- The eighth embodiment has a feature in that, in the curved surface portion formed at the upper end of the heat exchanger outlet-side air duct wall of the
air outlet 9 according to any one of the first to seventh embodiments, a part of the curved surface portion, which is positioned at each end portion of the heat exchanger outlet-side air duct wall in the longitudinal direction, is larger than a part of the curved surface portion, which is positioned at the center portion of the heat exchanger outlet-side air duct wall in the longitudinal direction. The size of the curved surface portion is determined based on comparison in any one of the size of the convex portion that defines the curved surface portion, the width of the heat exchanger outlet-side air duct wall in the region including the curved surface portion, the range of formation of the curved surface portion of the heat exchanger outlet-side air duct wall in the vertical direction, and the range of occupation of the curved surface portion in side view (in the view ofFIG. 2 ). Note that, in this respect,FIG. 10 also illustrates one aspect of the eighth embodiment in the case of comparison in the width of the heat exchanger outlet-side air duct wall in the region including the curved surface portion. - Also in the air conditioning apparatus of the eighth embodiment, which is constructed as described above, similar advantages to the advantages of any one of the corresponding first to seventh embodiments described above are attained. Further, also in the eighth embodiment, similar advantages to the advantages unique to the seventh embodiment described above are attained in terms of the curved surface portion of the heat exchanger outlet-side air duct wall. Thus, it is possible to enhance the power saving rate, reduce the air blowing noise, and to prevent the dew condensation, which may be caused by undesired intake of the air from the inside of the room.
- As examples of application of the present invention, the present invention is widely applicable to an indoor unit that constructs a refrigeration cycle system, such as an indoor unit of an air conditioning apparatus, or various other apparatus and facilities in which an air blower is installed.
- Although the details of the present invention are specifically described above with reference to the preferred embodiments, it is apparent that persons skilled in the art may adopt various modifications based on the basic technical concepts and teachings of the present invention, as defined in the appended claims.
- 3 heat exchanger, 9 air outlet, 10, 110, 210, 310, 410, 510, 610 heat exchanger outlet-side air duct wall, 11 opposing air duct wall, 121, 221, 321 curved surface portion, 223, 325 flat surface portion, 427 stepped portion
Claims (3)
- An air conditioning apparatus, comprising:a main body having at least one air inlet and at least one air outlet (9) each being formed at a lower part of the main body; anda heat exchanger (3) housed inside the main body and arranged in a flow passage of air to be sucked into the main body through the air inlet and blown out to a target space through the air outlet (9),wherein the air outlet (9) is formed between a heat exchanger outlet-side air duct wall (10, 110, 210, 310, 410, 510, 610) and an opposing air duct wall (11), which is opposed to the heat exchanger out-let-side air duct wall (10, 110, 210, 310, 410, 510, 610), and wherein a thickness L1 of the heat exchanger outlet-side air duct wall (10, 110, 210, 310, 410, 510, 610) is 0.15L2 to 0.25L2, where L2 represents an inlet width of the air outlet (9),characterized in thati) an upper end of the heat exchanger outlet-side air duct wall (110) comprises, in an air outlet-side region thereof, a curved surface portion (121) formed of a curved surface, which is convex toward an air duct side, and wherein a range L3 of the curved surface portion (121) in a thickness direction is equal to or larger than 0.4L1, and
a part of the curved surface portion, which is positioned at each end portion of the heat exchanger outlet-side air duct wall (610) in a longitudinal direction, is larger than a part of the curved surface portion, which is positioned at a center portion of the heat exchanger outlet-side air duct wall (610) in the longitudinal direction; orii) a thickness L1' of the heat exchanger outlet-side air duct wall (610) at the each end portion in the longitudinal direction is larger than the thickness L1 of the heat exchanger outlet-side air duct wall (610) at the center portion in the longitudinal direction. - An air conditioning apparatus according to claim 1,
wherein the heat exchanger outlet-side air duct wall (410) comprises a stepped portion (427),
wherein the stepped portion (427) is positioned at the heat exchanger outlet-side air duct wall (427) in a region opposed to the opposing air duct wall (11), and
wherein a region below the stepped portion (427) of the heat exchanger outlet-side air duct wall (410) is concave away from the opposing air duct wall. - An air conditioning apparatus according to any one of claims 1 or 2, wherein a distance L5 between the heat exchanger outlet-side air duct wall (510) and the heat exchanger (3) is smaller than the thickness L1 of the heat exchanger outlet-side air duct wall (510).
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PCT/JP2013/075016 WO2015040668A1 (en) | 2013-09-17 | 2013-09-17 | Air conditioner |
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BR112016015825A2 (en) * | 2014-01-08 | 2017-08-08 | Hitachi Johnson Controls Air Conditioning Inc | INTERNAL UNIT FOR AIR CONDITIONING APPLIANCE |
JP2018025357A (en) * | 2016-08-10 | 2018-02-15 | 日立ジョンソンコントロールズ空調株式会社 | Indoor unit and air conditioner |
KR102249321B1 (en) * | 2017-09-05 | 2021-05-07 | 삼성전자주식회사 | Air conditioner |
KR102598644B1 (en) * | 2019-01-18 | 2023-11-06 | 엘지전자 주식회사 | Ceiling type air conditioner |
CN112539466B (en) * | 2020-09-28 | 2022-09-02 | Tcl空调器(中山)有限公司 | Air guide mechanism and air conditioner indoor unit |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60125429U (en) * | 1984-02-03 | 1985-08-23 | 矢崎総業株式会社 | air conditioner |
JPH0659722U (en) * | 1993-01-29 | 1994-08-19 | 株式会社ゼクセル | Ceiling mounted air conditioner |
JPH08178335A (en) * | 1994-12-27 | 1996-07-12 | Daikin Ind Ltd | Air conditioner |
JPH11101483A (en) * | 1997-09-30 | 1999-04-13 | Matsushita Electric Ind Co Ltd | Air conditioner |
KR100402195B1 (en) * | 2000-01-28 | 2003-10-22 | 도시바 캐리어 가부시키 가이샤 | Cassette type air conditioner for mounting in the ceiling |
CN2455952Y (en) * | 2000-08-22 | 2001-10-24 | 大金工业株式会社 | Centrifugal fan |
CN1443988A (en) * | 2002-03-08 | 2003-09-24 | 乐金电子(天津)电器有限公司 | Ceiling board air conditioner with air cleaning device |
JP3972894B2 (en) * | 2003-11-27 | 2007-09-05 | ダイキン工業株式会社 | Air conditioner |
KR20070034214A (en) * | 2005-09-23 | 2007-03-28 | 삼성전자주식회사 | Heat exchanger support and air conditioner having same |
JP4923639B2 (en) * | 2005-11-11 | 2012-04-25 | ダイキン工業株式会社 | Indoor panel of air conditioner and air conditioner |
JP2007263441A (en) * | 2006-03-28 | 2007-10-11 | Mitsubishi Electric Corp | Ceiling mount type air conditioner, and dust removing device for filter of the same |
JP4107334B2 (en) * | 2006-04-21 | 2008-06-25 | ダイキン工業株式会社 | Air conditioner |
KR20120079119A (en) * | 2009-09-28 | 2012-07-11 | 다이킨 고교 가부시키가이샤 | Control device |
JP4715971B2 (en) * | 2009-11-04 | 2011-07-06 | ダイキン工業株式会社 | Heat exchanger and indoor unit equipped with the same |
JP4952775B2 (en) * | 2009-11-05 | 2012-06-13 | ダイキン工業株式会社 | Air conditioner indoor unit |
JP5250011B2 (en) * | 2010-10-26 | 2013-07-31 | 三菱電機株式会社 | Air conditioner |
JP5923871B2 (en) * | 2011-05-31 | 2016-05-25 | ダイキン工業株式会社 | Indoor unit for air conditioner |
EP3048375B1 (en) * | 2013-09-17 | 2020-12-23 | Mitsubishi Electric Corporation | Air conditioner |
-
2013
- 2013-09-17 EP EP13893750.3A patent/EP3048375B1/en active Active
- 2013-09-17 WO PCT/JP2013/075016 patent/WO2015040668A1/en active Application Filing
- 2013-09-17 US US14/433,746 patent/US20150276246A1/en not_active Abandoned
- 2013-09-17 CN CN201380056256.8A patent/CN104755847B/en active Active
- 2013-09-17 JP JP2014557640A patent/JP6008993B2/en active Active
-
2014
- 2014-09-15 CN CN201420529688.8U patent/CN204176753U/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
JP6008993B2 (en) | 2016-10-19 |
US20150276246A1 (en) | 2015-10-01 |
WO2015040668A1 (en) | 2015-03-26 |
CN104755847B (en) | 2017-08-04 |
JPWO2015040668A1 (en) | 2017-03-02 |
CN104755847A (en) | 2015-07-01 |
EP3048375A1 (en) | 2016-07-27 |
CN204176753U (en) | 2015-02-25 |
EP3048375A4 (en) | 2017-04-26 |
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