EP1008814A1 - Air outlet structure of air conditioners - Google Patents
Air outlet structure of air conditioners Download PDFInfo
- Publication number
- EP1008814A1 EP1008814A1 EP98931046A EP98931046A EP1008814A1 EP 1008814 A1 EP1008814 A1 EP 1008814A1 EP 98931046 A EP98931046 A EP 98931046A EP 98931046 A EP98931046 A EP 98931046A EP 1008814 A1 EP1008814 A1 EP 1008814A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- turbofan
- blown
- outlets
- flap
- 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.)
- Granted
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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
- 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
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/0328—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing 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
- 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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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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
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
Definitions
- the present invention relates to an air outlet structure for air conditioners which perform room air conditioning.
- an air conditioner in which a cross fin heat exchanger and a cross flow fan are disposed in a generally rectangular casing mounted on a wall surface, so that conditioning air is blown off from an air outlet provided on the underside of the casing.
- an object of the present invention is to provide an air outlet structure for air conditioners which enables air conditioning to be performed so that the room temperature distribution becomes uniform while any draft feeling is eliminated, without involving the swing function of flaps.
- the present invention provides an air outlet structure for air conditioners, which comprises: a casing; a turbofan whose axis is positioned in the casing along a back-and-forth direction and which blows off air, which has been sucked from a front side, radially outwardly with respect to the axis; and a heat exchanger disposed in the casing on the front side of the turbofan, the casing having outlets for blowing off the air, which has been blown off from the turbofan, in upper and lower, right and left directions, as well as flaps for controlling flow directions of the air blown off from the outlets, respectively, wherein a ranging distance of the air blown off from the upper outlet is larger than any ranging distance of the air blown off from the lower, right and left outlets.
- blown-off air flows and circulates so as to engulf the indoor living space along the wall surface, the ceiling surface and the floor surface.
- the ranging distance of air blown off from the upper outlet is larger than the ranging distances of air blown off from the lower-side, right-side and left-side outlets.
- an angle of inclination of a direction of the air blown off from the upper outlet with respect to a plane vertical to the axis of the turbofan is larger than any angle of inclination of directions of air blown off from the lower, right and left outlets with respect to the plane vertical to the axis of the turbofan.
- the angle of inclination of the direction of air blown off from the upper outlet with respect to a plane vertical to the axis of the turbofan is set larger than the angle of inclination of the directions of air blown off from the lower, right and left outlets with respect to a plane vertical to the axis of the turbofan, by which the air from the upper outlet is blown off forward and toward a wall surface opposite to the wall surface on which this indoor unit is mounted. Therefore, the ranging distance of the air blown off from the upper outlet can be made longer than the ranging distances of the air blown off from the lower, right and left outlets.
- a length from front edge to rear edge of the upper flap is longer than any length from front edge to rear edge of the lower, right and left flaps.
- the length from front edge to rear edge of the upper flap is set longer than the lengths from front edge to rear edge of the other flaps.
- Fig. 1 is an exploded perspective view of main part of an indoor unit using the air outlet structure for air conditioners according to an embodiment of the present invention, where reference numeral 1 denotes a generally square-shaped bottom frame whose rear side is mounted on a room wall surface; 2 denotes a motor fixed via a motor fixing plate 12 to a mounting portion 11 provided at a generally center of the bottom frame 1; 3 denotes a turbofan whose axis is positioned in the bottom frame 1 along the back-and-forth direction and which is driven by the motor 2 so that the turbofan blows off air, which has been sucked from the front side, radially outwardly with respect to the axis; 4 denotes a bell mouth mounted on the bottom frame 1 on the front side of the turbofan 3; 5 denotes a heat exchanger mounted on the front side of the bell mouth 4; 6 denotes a front panel which is mounted on the bottom frame 1 on the front side of the heat exchanger 5 and which has a generally square-shaped suction port 6a
- Fig. 2 shows a front view of the indoor unit in which the suction grille 7 and the front panel 6 shown in Fig. 1 have been removed.
- the bottom frame 1 has an outlet 21 on the upper side, an outlet 22 on the lower side, an outlet 23 on the right side, an outlet 24 on the left side.
- an upper flap 31, a lower flap 32, a right flap 33 and a left flap 34 are attached at the outlets 21, 22, 23, 24, respectively.
- the upper flap 31, the lower flap 32, the right flap 33 and the left flap 34 are driven by an upper-flap stepping motor 41, a lower-flap stepping motor 42, a right-flap stepping motor 43 and a left-flap stepping motor 44, respectively, to control the flow directions of air blown off from the outlets 21, 22, 23, 24.
- Fig. 3 is a sectional view as viewed from the line III - III of Fig. 2, where the turbofan 3 and the heat exchanger 5 are provided as thin type ones while the motor 2 mounted on the bottom frame 1 is accommodated in a recessed portion forming a curved surface 3a of the turbofan 3. Air sucked in from the front by the turbofan 3 is blown off from the upper-and-lower, right-and-left outlets 21, 22 (only two outlets shown in Fig. 3) as indicated by arrows R1, R2 via the suction grille 7, the air filter 8 and the heat exchanger 5.
- air from the turbofan 3 is blown off obliquely upward in the front when the upper flap 31 is at a specified degree of openness, where the air flow direction becomes about 60 degrees with respect to a plane vertical to the axis of the turbofan 3.
- air from the turbofan 3 is blown off obliquely downward in the front when the lower flap 32 is at a specified degree of openness, where the air flow direction becomes about 30 degrees with respect to a plane vertical to the axis of the turbofan 3.
- the right outlet 23 and the left outlet 24 shown in Fig.
- Fig. 4 is a schematic structural view of the indoor unit.
- This indoor unit comprises the upper-flap stepping motor 41, the lower-flap stepping motor 42, the right-flap stepping motor 43 and the left-flap stepping motor 44 as a driving section, and a control unit 10 for controlling the stepping motors 41, 42, 43, 44, the turbofan 3 and the like.
- the control unit 10 comprises a microcomputer, input/output circuits and the like, and has a flap control section 10a which outputs a control signal to the stepping motors 41, 42, 43, 44 responsive to the state of operation thereby to control the degree of openness of the upper flap 31, the lower flap 32, the right flap 33 and the left flap 34.
- the stepping motors 41, 42, 43, 44 and the flap control section 10a of the control unit 10 constitute an air flow control unit.
- Fig. 5 is a main-part sectional view of the upper-side outlet of the indoor unit for air conditioners
- Fig. 6 is a main-part sectional view of the lower-side, right-side and left-side of the indoor unit. It is noted that Figs. 5 and 6 are purposed to explain in detail the air outlet structure of the indoor unit for air conditioners, which is different from the air outlet structure of the indoor unit shown in Fig. 3.
- a guide portion 51 having a curved surface 51a gradually curved obliquely forward from the turbofan 3 side is placed on the rear side of an upper outlet 53 of a casing 50, while a guide portion 52 having a curved surface 52a gradually curved obliquely forward from the turbofan 3 side is placed on the front side of the outlet 53.
- These guide portions 51, 52 define a blowoff passage for blowing off the conditioning air obliquely upward in the front.
- an upper flap 54 rotatably supported by a rotating shaft 55. This upper flap 54, while opened at a specified degree of openness, has its front edge side gradually curved toward the turbofan 3 side so that air smoothly flows along the blowoff passage.
- a plurality of vertical plates 56 (only one shown in Fig. 5) extending generally vertically at specified intervals are provided on the front side of the vane surface of the upper flap 54.
- air flow is controlled by the guide portions 51, 52 and the upper flap 54 so that the direction of air blown off from the turbofan 3 comes to form an angle of about 60 degrees with a plane vertical to the axis of the turbofan 3.
- the upper flap 54 is rotated along a direction of arrow R3.
- a guide portion 61 having a curved surface 61a gradually curved obliquely forward from the turbofan 3 side is placed on the rear side of lower, right and left outlets 63 of the casing 50, and a guide portion 62 having a curved surface 62a gradually curved obliquely forward from the turbofan 3 side is placed on the front side of the casing 50.
- these guide portions 61, 62 define a blowoff passage for blowing off the conditioning air from the outlet 63 obliquely downward in the front.
- the guide portions 61, 62 define a blowoff passage for blowing off the conditioning air from the outlets 63 obliquely sideways and forward.
- outlets 63 are mounted lower, right and left flaps 64 rotatably supported by a rotating shaft 65.
- a plurality of vertical plates 66 (only one shown in Fig. 6) extending generally vertically at specified intervals are provided on the front side of the vane surface of the upper flap 64.
- air flow is controlled by the guide portions 61, 62 and the flap 64 so that the direction of air blown off from the turbofan 3 is made obliquely downward and forward so as to form an angle of about 30 degrees with a plane vertical to the axis of the turbofan 3.
- the turbofan 3 is rotated so that air is sucked in via the heat exchanger 5 from the axial front of the turbofan 3, flowing along the curved surface of a curved portion 3a of the turbofan 3, and conditioning air heat-exchanged by the heat exchanger 5 is blown off from the upper-and-lower, right-and-left outlets 21, 22, 23, 24 (shown in Fig. 2) radially outwardly.
- the stepping motors 41, 42, 43, 44 are controlled by the flap control section 10a of the control unit 10 shown in Fig. 4 so that the degree of openness of the upper flap 31, the lower flap 32, the right flap 33 and the left flap 34 shown in Fig.
- the indoor unit 70 of this invention when the indoor unit 70 of this invention is mounted on an indoor wall surface so that air is blown off in the four directions of upper and lower, right and left, air blown off in the four directions flows and circulates so as to engulf the indoor living space along the wall surface, the ceiling surface and the floor surface, thereby preventing people from feeling a draft in the living space S2 and thus improving the comfortableness in cooling and heating operation as shown in Fig. 8B.
- the air blown off from the upper outlet 53 efficiently stirs air so as to engulf the living space in the room together with the flow of air blown off from the lower, right and left outlets 63, thereby circulating the warm air in upper part of the room particularly in the heating operation. Therefore, an air conditioning in which the indoor temperature distribution is uniform and which is free from any draft feeling can be attained without swinging the flaps, and the comfortableness can be improved.
- the angle of inclination of the blowoff direction from the upper outlet 21 with respect to a plane vertical to the axis of the turbofan 3 has been set to about 60 degrees, which is larger than the about 30-degree angle of inclination of the blowoff direction from the lower, right and left outlets 22, 23, 24, the air from the upper outlet 21 is blown off toward a wall surface opposite to the wall surface on which the indoor unit is mounted.
- the ranging distance of air blown off from the upper outlet 21 can be made longer than the ranging distance of the air blown off from the lower, right and left outlets 22, 23, 24.
- the length from front edge to rear edge of the upper flap 54 is made longer than the lengths from front edge to rear edge of the lower, right and left flaps 64, a more effective air flow control can be achieved so that air can be easily blown off from the upper outlet 21 to the front.
- the upper flap 54 is curved at its upstream side so that air blown off from the turbofan 3 is smoothly guided, thus making it easy particularly to blow off air to the front.
- the direction of air blown off from the upper outlet 21 is set to about 60 degrees with respect to a plane vertical to the axis of the turbofan 3
- the direction of air blown off from the lower outlet 22 is set to about 30 degrees with respect to a plane vertical to the axis of the turbofan 3
- the direction of air blown off from the right and left outlets 23, 24 is set to about 30 degrees with respect to a plane vertical to the axis of the turbofan 3.
- the ranging distance of air blown off from the upper outlet be larger than the ranging distance of air blown off from the lower, right and left outlets, and the angle of air flow blown off from the individual outlets may be set to any appropriate values.
- the air outlet structure for air conditioners of the present invention is used for air conditioners that blow off conditioning air in upper and lower, right and left directions.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Description
- The present invention relates to an air outlet structure for air conditioners which perform room air conditioning.
- Conventionally, there has been provided an air conditioner in which a cross fin heat exchanger and a cross flow fan are disposed in a generally rectangular casing mounted on a wall surface, so that conditioning air is blown off from an air outlet provided on the underside of the casing.
- However, in this air conditioner, as shown in Fig. 8A, since the air flow direction of the conditioning air of an
indoor unit 80 mounted on a wall surface is generally restricted to a forward direction, people tend to feel a draft in a living space S1 particularly during heating operation. Also, unless flaps for controlling the air flow direction are swung, it could be impossible to obtain a uniform temperature distribution, which causes a problem in comfortableness. - Therefore, an object of the present invention is to provide an air outlet structure for air conditioners which enables air conditioning to be performed so that the room temperature distribution becomes uniform while any draft feeling is eliminated, without involving the swing function of flaps.
- In order to achieve the above-mentioned object, the present invention provides an air outlet structure for air conditioners, which comprises: a casing; a turbofan whose axis is positioned in the casing along a back-and-forth direction and which blows off air, which has been sucked from a front side, radially outwardly with respect to the axis; and a heat exchanger disposed in the casing on the front side of the turbofan, the casing having outlets for blowing off the air, which has been blown off from the turbofan, in upper and lower, right and left directions, as well as flaps for controlling flow directions of the air blown off from the outlets, respectively, wherein a ranging distance of the air blown off from the upper outlet is larger than any ranging distance of the air blown off from the lower, right and left outlets.
- According to this invention, by the four-direction blowoff, blown-off air flows and circulates so as to engulf the indoor living space along the wall surface, the ceiling surface and the floor surface. Further, the ranging distance of air blown off from the upper outlet is larger than the ranging distances of air blown off from the lower-side, right-side and left-side outlets. As a result, for example, when the air blown off from the upper outlet is directed toward the front and set at a higher velocity than the other outlets, air in the vicinity of the ceiling is pushed toward the opposite wall surface side, and further flows from the opposite wall surface side to the lower floor surface, thus the air being efficiently stirred so as to engulf the living space in the room. Therefore, warm air in upper part of the room is circulated particularly in the heating operation, by which floatage of warm air or residence of warm air in the upper part of the room is prevented. Thus, an air conditioning in which the indoor temperature distribution is uniform and which is free from any draft feeling can be attained without swinging function of flaps.
- In an embodiment of the air outlet structure for air conditioners according to
Claim 1, an angle of inclination of a direction of the air blown off from the upper outlet with respect to a plane vertical to the axis of the turbofan is larger than any angle of inclination of directions of air blown off from the lower, right and left outlets with respect to the plane vertical to the axis of the turbofan. - According to this embodiment, the angle of inclination of the direction of air blown off from the upper outlet with respect to a plane vertical to the axis of the turbofan is set larger than the angle of inclination of the directions of air blown off from the lower, right and left outlets with respect to a plane vertical to the axis of the turbofan, by which the air from the upper outlet is blown off forward and toward a wall surface opposite to the wall surface on which this indoor unit is mounted. Therefore, the ranging distance of the air blown off from the upper outlet can be made longer than the ranging distances of the air blown off from the lower, right and left outlets.
- In an embodiment of the air outlet structure for air conditioners according to
Claim - According to this embodiment, the length from front edge to rear edge of the upper flap is set longer than the lengths from front edge to rear edge of the other flaps. As a result, a more effective air flow control can be attained so that the blowoff of air from the upper outlet to the front can be easily achieved.
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- Fig. 1 is an exploded perspective view of main part of an indoor unit using an air outlet structure for air conditioners according to an embodiment of the present invention;
- Fig. 2 is a front view of the indoor unit;
- Fig. 3 is a sectional view as viewed from the line III-III of Fig. 2;
- Fig. 4 is a schematic structural view of the indoor unit;
- Fig. 5 is a main-part sectional view showing the air outlet structure on the upper side of the indoor unit;
- Fig. 6 is a main-part sectional view showing the air outlet structure on the lower, left and right side of the indoor unit;
- Fig. 7 is a view showing a state in which the indoor unit is mounted on an indoor wall surface; and
- Fig. 8A is a view showing an air flow state of an indoor unit of an air conditioner according to the prior art, and Fig. 8B is a view showing an air flow state of the indoor unit of an air conditioner according to the embodiment of the invention.
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- The air outlet structure for air conditioners according to the present invention is described in detail by way of embodiments thereof.
- Fig. 1 is an exploded perspective view of main part of an indoor unit using the air outlet structure for air conditioners according to an embodiment of the present invention, where
reference numeral 1 denotes a generally square-shaped bottom frame whose rear side is mounted on a room wall surface; 2 denotes a motor fixed via amotor fixing plate 12 to amounting portion 11 provided at a generally center of thebottom frame 1; 3 denotes a turbofan whose axis is positioned in thebottom frame 1 along the back-and-forth direction and which is driven by themotor 2 so that the turbofan blows off air, which has been sucked from the front side, radially outwardly with respect to the axis; 4 denotes a bell mouth mounted on thebottom frame 1 on the front side of theturbofan 3; 5 denotes a heat exchanger mounted on the front side of thebell mouth 4; 6 denotes a front panel which is mounted on thebottom frame 1 on the front side of theheat exchanger 5 and which has a generally square-shaped suction port 6a; and 7 denotes a suction grille which is mounted on thesuction port 6a of the front panel 6 and equipped with anair filter 8 on the rear side. Acircular hole 14 is provided at a generally center of thebell mouth 4, and adrain pan 13 is disposed at a lower portion of thebell mouth 4. In addition, thebottom frame 1 and the front panel 6 constitute a casing. - Fig. 2 shows a front view of the indoor unit in which the suction grille 7 and the front panel 6 shown in Fig. 1 have been removed. As shown in Fig. 2, the
bottom frame 1 has anoutlet 21 on the upper side, anoutlet 22 on the lower side, anoutlet 23 on the right side, anoutlet 24 on the left side. Also, anupper flap 31, alower flap 32, aright flap 33 and aleft flap 34 are attached at theoutlets upper flap 31, thelower flap 32, theright flap 33 and theleft flap 34 are driven by an upper-flap stepping motor 41, a lower-flap stepping motor 42, a right-flap stepping motor 43 and a left-flap stepping motor 44, respectively, to control the flow directions of air blown off from theoutlets - Fig. 3 is a sectional view as viewed from the line III - III of Fig. 2, where the
turbofan 3 and theheat exchanger 5 are provided as thin type ones while themotor 2 mounted on thebottom frame 1 is accommodated in a recessed portion forming a curved surface 3a of theturbofan 3. Air sucked in from the front by theturbofan 3 is blown off from the upper-and-lower, right-and-left outlets 21, 22 (only two outlets shown in Fig. 3) as indicated by arrows R1, R2 via thesuction grille 7, theair filter 8 and theheat exchanger 5. At theupper outlet 21, air from theturbofan 3 is blown off obliquely upward in the front when theupper flap 31 is at a specified degree of openness, where the air flow direction becomes about 60 degrees with respect to a plane vertical to the axis of theturbofan 3. Meanwhile, at the lower-side outlet 22, air from theturbofan 3 is blown off obliquely downward in the front when thelower flap 32 is at a specified degree of openness, where the air flow direction becomes about 30 degrees with respect to a plane vertical to the axis of theturbofan 3. Also, at theright outlet 23 and the left outlet 24 (shown in Fig. 2), which are similar in construction to thelower outlet 22, air from theturbofan 3 is blown off obliquely sideways in the front when theright flap 33 and the left flap 34 (shown in Fig. 2) are at a specified degree of openness, where the air flow direction becomes about 30 degrees with respect to a plane vertical to the axis of theturbofan 3. At theupper outlet 21, which is substantially larger in blowoff resistance than theother outlets upper outlet 21 is set to the forward direction and the velocity of air blown off from theoutlet 21 is made faster, so that the ranging distance of air blown off from theupper outlet 21 is made larger than that of theoutlets - Fig. 4 is a schematic structural view of the indoor unit. This indoor unit comprises the upper-
flap stepping motor 41, the lower-flap stepping motor 42, the right-flap stepping motor 43 and the left-flap stepping motor 44 as a driving section, and acontrol unit 10 for controlling thestepping motors turbofan 3 and the like. Thecontrol unit 10 comprises a microcomputer, input/output circuits and the like, and has aflap control section 10a which outputs a control signal to thestepping motors upper flap 31, thelower flap 32, theright flap 33 and theleft flap 34. Thestepping motors flap control section 10a of thecontrol unit 10 constitute an air flow control unit. - Fig. 5 is a main-part sectional view of the upper-side outlet of the indoor unit for air conditioners, and Fig. 6 is a main-part sectional view of the lower-side, right-side and left-side of the indoor unit. It is noted that Figs. 5 and 6 are purposed to explain in detail the air outlet structure of the indoor unit for air conditioners, which is different from the air outlet structure of the indoor unit shown in Fig. 3.
- As shown in Fig. 5, a
guide portion 51 having a curved surface 51a gradually curved obliquely forward from theturbofan 3 side is placed on the rear side of anupper outlet 53 of acasing 50, while aguide portion 52 having acurved surface 52a gradually curved obliquely forward from theturbofan 3 side is placed on the front side of theoutlet 53. Theseguide portions outlet 53, is mounted anupper flap 54 rotatably supported by a rotatingshaft 55. Thisupper flap 54, while opened at a specified degree of openness, has its front edge side gradually curved toward theturbofan 3 side so that air smoothly flows along the blowoff passage. Further, a plurality of vertical plates 56 (only one shown in Fig. 5) extending generally vertically at specified intervals are provided on the front side of the vane surface of theupper flap 54. When theupper flap 54 is brought to a specified degree of openness, air flow is controlled by theguide portions upper flap 54 so that the direction of air blown off from theturbofan 3 comes to form an angle of about 60 degrees with a plane vertical to the axis of theturbofan 3. To narrow the degree of openness of theupper flap 54, theupper flap 54 is rotated along a direction of arrow R3. - Also, as shown in Fig. 6, a
guide portion 61 having a curved surface 61a gradually curved obliquely forward from theturbofan 3 side is placed on the rear side of lower, right andleft outlets 63 of thecasing 50, and aguide portion 62 having acurved surface 62a gradually curved obliquely forward from theturbofan 3 side is placed on the front side of thecasing 50. At thelower outlet 63, theseguide portions outlet 63 obliquely downward in the front. At the right andleft outlets 63, theguide portions outlets 63 obliquely sideways and forward. Also, at theoutlets 63, are mounted lower, right andleft flaps 64 rotatably supported by a rotatingshaft 65. A plurality of vertical plates 66 (only one shown in Fig. 6) extending generally vertically at specified intervals are provided on the front side of the vane surface of theupper flap 64. At thelower outlet 63, when thelower flap 64 is brought to a specified angle, air flow is controlled by theguide portions flap 64 so that the direction of air blown off from theturbofan 3 is made obliquely downward and forward so as to form an angle of about 30 degrees with a plane vertical to the axis of theturbofan 3. Also, at the right and leftoutlets 63, when theright flap 64 and theleft flap 64 are brought to a specified angle, air flow is controlled by theguide portions flaps 64 so that the direction of air blown off from theturbofan 3 is made obliquely forward so as to form an angle of about 30 degrees with a vertical plane including the axis of theturbofan 3. To narrow the degree of openness of theflaps 64, theflaps 64 are rotated along a direction of arrow R4. - In the air conditioner having this constitution, as shown in Fig. 3, when the
motor 2 is rotated, theturbofan 3 is rotated so that air is sucked in via theheat exchanger 5 from the axial front of theturbofan 3, flowing along the curved surface of a curved portion 3a of theturbofan 3, and conditioning air heat-exchanged by theheat exchanger 5 is blown off from the upper-and-lower, right-and-leftoutlets motors flap control section 10a of thecontrol unit 10 shown in Fig. 4 so that the degree of openness of theupper flap 31, thelower flap 32, theright flap 33 and theleft flap 34 shown in Fig. 2 is controlled, so that the directions of air flows blown off from theoutlets indoor unit 70 of this invention is mounted on an indoor wall surface so that air is blown off in the four directions of upper and lower, right and left, air blown off in the four directions flows and circulates so as to engulf the indoor living space along the wall surface, the ceiling surface and the floor surface, thereby preventing people from feeling a draft in the living space S2 and thus improving the comfortableness in cooling and heating operation as shown in Fig. 8B. - As shown above, in the outlet structure of the air outlet structure, since the upper-side air outlet structure (shown in Fig. 5) is longer in the ranging distance of blown-off air than the lower-side, right-side and left-side air outlet structures (shown in Fig. 6), the air blown off from the
upper outlet 53 efficiently stirs air so as to engulf the living space in the room together with the flow of air blown off from the lower, right and leftoutlets 63, thereby circulating the warm air in upper part of the room particularly in the heating operation. Therefore, an air conditioning in which the indoor temperature distribution is uniform and which is free from any draft feeling can be attained without swinging the flaps, and the comfortableness can be improved. - Also, since the angle of inclination of the blowoff direction from the
upper outlet 21 with respect to a plane vertical to the axis of theturbofan 3 has been set to about 60 degrees, which is larger than the about 30-degree angle of inclination of the blowoff direction from the lower, right and leftoutlets upper outlet 21 is blown off toward a wall surface opposite to the wall surface on which the indoor unit is mounted. As a result, the ranging distance of air blown off from theupper outlet 21 can be made longer than the ranging distance of the air blown off from the lower, right and leftoutlets - Also, as shown in Fig. 5, since the length from front edge to rear edge of the
upper flap 54 is made longer than the lengths from front edge to rear edge of the lower, right and leftflaps 64, a more effective air flow control can be achieved so that air can be easily blown off from theupper outlet 21 to the front. Besides, theupper flap 54 is curved at its upstream side so that air blown off from theturbofan 3 is smoothly guided, thus making it easy particularly to blow off air to the front. - In the above embodiment, the direction of air blown off from the
upper outlet 21 is set to about 60 degrees with respect to a plane vertical to the axis of theturbofan 3, the direction of air blown off from thelower outlet 22 is set to about 30 degrees with respect to a plane vertical to the axis of theturbofan 3, and the direction of air blown off from the right and leftoutlets turbofan 3. However, it is only required that the ranging distance of air blown off from the upper outlet be larger than the ranging distance of air blown off from the lower, right and left outlets, and the angle of air flow blown off from the individual outlets may be set to any appropriate values. - The air outlet structure for air conditioners of the present invention is used for air conditioners that blow off conditioning air in upper and lower, right and left directions.
Claims (3)
- An air outlet structure for air conditioners, which comprises: a casing (1, 6); a turbofan (3) whose axis is positioned in the casing (1, 6) along a back-and-forth direction and which blows off air, which has been sucked from a front side, radially outwardly with respect to the axis; and a heat exchanger (5) disposed in the casing (1, 6) on the front side of the turbofan (3), the casing (1, 6) having outlets (21, 22, 23, 24) for blowing off the air, which has been blown off from the turbofan (3), in upper and lower, right and left directions, as well as flaps (31, 32, 33, 34) for controlling flow directions of the air blown off from the outlets (21, 22, 23, 24), respectively, whereina ranging distance of the air blown off from the upper outlet (21) is larger than any ranging distance of the air blown off from the lower, right and left outlets (22, 23, 24).
- The air outlet structure for air conditioners according to Claim 1, whereinan angle of inclination of a direction of the air blown off from the upper outlet (21) with respect to a plane vertical to the axis of the turbofan (3) is larger than any angle of inclination of directions of air blown off from the lower, right and left outlets (22, 23, 24) with respect to the plane vertical to the axis of the turbofan (3).
- The air outlet structure for air conditioners according to Claim 1 or 2, whereina length from front edge to rear edge of the upper flap (31) is longer than any length from front edge to rear edge of the lower, right and left flaps (32, 33, 34).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21505897 | 1997-08-08 | ||
JP9215058A JP2947236B2 (en) | 1997-08-08 | 1997-08-08 | Air outlet structure of air conditioner |
PCT/JP1998/003103 WO1999008050A1 (en) | 1997-08-08 | 1998-07-10 | Air outlet structure of air conditioners |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1008814A1 true EP1008814A1 (en) | 2000-06-14 |
EP1008814A4 EP1008814A4 (en) | 2003-05-07 |
EP1008814B1 EP1008814B1 (en) | 2005-10-12 |
Family
ID=16666069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98931046A Expired - Lifetime EP1008814B1 (en) | 1997-08-08 | 1998-07-10 | Air outlet structure of air conditioners |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1008814B1 (en) |
JP (1) | JP2947236B2 (en) |
CN (1) | CN1155779C (en) |
ES (1) | ES2251089T3 (en) |
HK (1) | HK1032620A1 (en) |
TW (1) | TW377394B (en) |
WO (1) | WO1999008050A1 (en) |
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EP1367336A1 (en) * | 2001-02-01 | 2003-12-03 | Daikin Industries, Ltd. | Indoor air conditioner |
EP1379816A1 (en) * | 2001-04-20 | 2004-01-14 | LG Electronics Inc. | Indoor unit for air conditioner |
EP1422481A1 (en) * | 2002-11-20 | 2004-05-26 | TKT Facility Engineering GmbH | Ceiling mounted convector |
EP1512919A2 (en) * | 2003-09-04 | 2005-03-09 | Lg Electronics Inc. | Indoor unit in air conditioner |
EP1571401A2 (en) * | 2004-03-04 | 2005-09-07 | Lg Electronics Inc. | Indoor unit in air conditioner |
WO2007086643A2 (en) * | 2006-01-24 | 2007-08-02 | Lg Electronics Inc. | Indoor unit of air conditioner |
WO2007074952A3 (en) * | 2005-12-26 | 2009-04-30 | Lg Electronics Inc | Indoor unit of air conditioner |
EP2090843A1 (en) * | 2006-12-06 | 2009-08-19 | Daikin Industries, Ltd. | Air conditioning apparatus |
EP2811236A1 (en) * | 2012-02-03 | 2014-12-10 | Daikin Industries, Ltd. | Indoor unit |
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FI105360B (en) * | 1999-03-10 | 2000-07-31 | Halton Oy | Nozzle |
JP3285023B2 (en) * | 1999-11-05 | 2002-05-27 | ダイキン工業株式会社 | Ceiling-mounted air conditioner |
JP3624836B2 (en) * | 2001-01-15 | 2005-03-02 | ダイキン工業株式会社 | Air conditioner indoor unit |
CN100541014C (en) * | 2004-08-09 | 2009-09-16 | 乐金电子(天津)电器有限公司 | The indoor set of air-conditioning |
JP3852012B2 (en) * | 2004-08-25 | 2006-11-29 | ダイキン工業株式会社 | Floor-mounted air conditioner |
KR20070087829A (en) * | 2005-12-26 | 2007-08-29 | 엘지전자 주식회사 | Indoor unit of air conditioner |
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JP5112239B2 (en) * | 2008-09-30 | 2013-01-09 | 三菱重工業株式会社 | Air conditioner |
CN102345924B (en) * | 2011-10-20 | 2016-06-01 | 广东美的制冷设备有限公司 | A kind of exhaust apparatus of air conditioner room unit |
CN104390267B (en) * | 2014-10-31 | 2017-05-24 | 广东美的制冷设备有限公司 | Air conditioner and air supplying method of air conditioner |
CN110056970A (en) * | 2019-05-10 | 2019-07-26 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
CN111780243B (en) * | 2020-06-08 | 2022-09-30 | 海信空调有限公司 | Air conditioner with double air outlets |
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JPH02136628A (en) * | 1988-11-18 | 1990-05-25 | Mitsubishi Electric Corp | Indoor unit for air conditioner |
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JPH10197001A (en) * | 1997-01-08 | 1998-07-31 | Daikin Ind Ltd | Air conditioner |
EP1014011A1 (en) * | 1997-08-08 | 2000-06-28 | Daikin Industries, Limited | Method and apparatus for controlling air flow in indoor machine of air conditioner |
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JPS5759871Y2 (en) * | 1978-07-17 | 1982-12-21 | ||
JPS57160032U (en) * | 1981-04-01 | 1982-10-07 | ||
JPS59113124U (en) * | 1983-01-19 | 1984-07-31 | 浅野 隆彦 | Air conditioning equipment for large spaces |
JPH02169935A (en) * | 1988-12-23 | 1990-06-29 | Hitachi Ltd | Air conditioner |
JPH04158127A (en) * | 1990-10-22 | 1992-06-01 | Matsushita Electric Ind Co Ltd | Air conditioner |
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1997
- 1997-08-08 JP JP9215058A patent/JP2947236B2/en not_active Expired - Lifetime
-
1998
- 1998-07-10 ES ES98931046T patent/ES2251089T3/en not_active Expired - Lifetime
- 1998-07-10 WO PCT/JP1998/003103 patent/WO1999008050A1/en active IP Right Grant
- 1998-07-10 EP EP98931046A patent/EP1008814B1/en not_active Expired - Lifetime
- 1998-07-10 CN CNB988097494A patent/CN1155779C/en not_active Expired - Fee Related
- 1998-07-18 TW TW087111754A patent/TW377394B/en not_active IP Right Cessation
-
2001
- 2001-05-04 HK HK01103176A patent/HK1032620A1/en not_active IP Right Cessation
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JPH02136628A (en) * | 1988-11-18 | 1990-05-25 | Mitsubishi Electric Corp | Indoor unit for air conditioner |
JPH06137578A (en) * | 1992-10-21 | 1994-05-17 | Mitsubishi Electric Corp | Air conditioner |
JPH10141741A (en) * | 1996-11-15 | 1998-05-29 | Daikin Ind Ltd | Air conditioner |
JPH10197001A (en) * | 1997-01-08 | 1998-07-31 | Daikin Ind Ltd | Air conditioner |
EP1014011A1 (en) * | 1997-08-08 | 2000-06-28 | Daikin Industries, Limited | Method and apparatus for controlling air flow in indoor machine of air conditioner |
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PATENT ABSTRACTS OF JAPAN vol. 014, no. 375 (M-1010), 14 August 1990 (1990-08-14) & JP 02 136628 A (MITSUBISHI ELECTRIC CORP), 25 May 1990 (1990-05-25) * |
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See also references of WO9908050A1 * |
Cited By (25)
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---|---|---|---|---|
EP1367336A4 (en) * | 2001-02-01 | 2007-03-14 | Daikin Ind Ltd | Indoor air conditioner |
EP1367336A1 (en) * | 2001-02-01 | 2003-12-03 | Daikin Industries, Ltd. | Indoor air conditioner |
EP1775520A1 (en) * | 2001-04-20 | 2007-04-18 | Lg Electronics Inc. | Indoor unit for air conditioner |
EP1379816A4 (en) * | 2001-04-20 | 2005-04-27 | Lg Electronics Inc | Indoor unit for air conditioner |
EP1379816A1 (en) * | 2001-04-20 | 2004-01-14 | LG Electronics Inc. | Indoor unit for air conditioner |
US7275388B2 (en) | 2001-04-20 | 2007-10-02 | Lg Electronics Inc. | Indoor unit for air conditioner |
EP1610065A2 (en) * | 2001-04-20 | 2005-12-28 | Lg Electronics Inc. | Indoor unit for air conditioner |
EP1610065A3 (en) * | 2001-04-20 | 2006-05-24 | Lg Electronics Inc. | Indoor unit for air conditioner |
EP1775523A3 (en) * | 2001-04-20 | 2007-09-12 | LG Electronics Inc. | Indoor unit for air conditioner |
EP1775521A1 (en) | 2001-04-20 | 2007-04-18 | LG Electronics Inc. | Indoor unit for air conditioner |
EP1770339A1 (en) * | 2001-04-20 | 2007-04-04 | LG Electronics Inc. | Indoor unit for air conditioner |
EP1775522A1 (en) | 2001-04-20 | 2007-04-18 | Lg Electronics Inc. | Indoor unit for air conditioner |
EP1422481A1 (en) * | 2002-11-20 | 2004-05-26 | TKT Facility Engineering GmbH | Ceiling mounted convector |
EP1512919A2 (en) * | 2003-09-04 | 2005-03-09 | Lg Electronics Inc. | Indoor unit in air conditioner |
EP1512919B1 (en) * | 2003-09-04 | 2014-11-05 | LG Electronics, Inc. | Indoor unit in air conditioner |
EP1571401A3 (en) * | 2004-03-04 | 2006-08-16 | Lg Electronics Inc. | Indoor unit in air conditioner |
EP1571401A2 (en) * | 2004-03-04 | 2005-09-07 | Lg Electronics Inc. | Indoor unit in air conditioner |
WO2007074952A3 (en) * | 2005-12-26 | 2009-04-30 | Lg Electronics Inc | Indoor unit of air conditioner |
WO2007086643A3 (en) * | 2006-01-24 | 2009-05-22 | Lg Electronics Inc | Indoor unit of air conditioner |
WO2007086643A2 (en) * | 2006-01-24 | 2007-08-02 | Lg Electronics Inc. | Indoor unit of air conditioner |
EP2090843A1 (en) * | 2006-12-06 | 2009-08-19 | Daikin Industries, Ltd. | Air conditioning apparatus |
EP2090843A4 (en) * | 2006-12-06 | 2013-01-23 | Daikin Ind Ltd | Air conditioning apparatus |
US9328938B2 (en) | 2012-02-03 | 2016-05-03 | Daikin Industries, Ltd. | Indoor unit |
EP2811236A1 (en) * | 2012-02-03 | 2014-12-10 | Daikin Industries, Ltd. | Indoor unit |
EP2811236A4 (en) * | 2012-02-03 | 2015-01-07 | Daikin Ind Ltd | Indoor unit |
Also Published As
Publication number | Publication date |
---|---|
ES2251089T3 (en) | 2006-04-16 |
EP1008814B1 (en) | 2005-10-12 |
JP2947236B2 (en) | 1999-09-13 |
CN1155779C (en) | 2004-06-30 |
HK1032620A1 (en) | 2001-07-27 |
JPH1163546A (en) | 1999-03-05 |
CN1272912A (en) | 2000-11-08 |
WO1999008050A1 (en) | 1999-02-18 |
TW377394B (en) | 1999-12-21 |
EP1008814A4 (en) | 2003-05-07 |
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