WO1999008050A1

WO1999008050A1 - Air outlet structure of air conditioners

Info

Publication number: WO1999008050A1
Application number: PCT/JP1998/003103
Authority: WO
Inventors: Masashi Fukatsu; Seiji Oka
Original assignee: Daikin Industries, Ltd.
Priority date: 1997-08-08
Filing date: 1998-07-10
Publication date: 1999-02-18
Also published as: ES2251089T3; JPH1163546A; JP2947236B2; EP1008814B1; EP1008814A1; CN1272912A; HK1032620A1; CN1155779C; TW377394B; EP1008814A4

Abstract

An air outlet structure of air conditioners for achieving a uniform temperature distribution in the room without the function of swinging flaps and without giving the feeling of draft. A shaft is disposed in the longitudinal direction within a casing. A turbo fan (3) for blowing air sucked from the front side outward in the radial direction, and a heat exchanger (5) disposed within the casing on the front side of the turbo fan (3) are provided. The casing is provided with air outlets (21-24) for blowing in the vertical and lateral directions the air blown from the turbo fan (3). The reach of the air blown from the upper outlet (21) is greater than those of the air blown from the lower, right-side and left-side outlets (22-24).

Description

Description Air conditioner outlet structure

Technical field

The present invention relates to an air outlet structure for an air conditioner that performs indoor air conditioning.

Background art

Conventionally, as an air conditioner, a cross-fin heat exchanger and a cross-floor fan have been arranged in a substantially rectangular casing mounted on the wall, and the air conditioner has been conditioned from the outlet provided on the lower side of the casing. Some have an indoor unit that blows air.

However, in the above air conditioner, as shown in Fig. 8A, the wind direction of the conditioned air blown from the indoor unit 80 mounted on the wall is almost limited to the front, so the living space S1 In this case, a person can easily feel a draft feeling, and unless the flap for controlling the wind direction of the blow-out is swung, a uniform temperature distribution cannot be obtained and there is a problem in comfort.

Disclosure of the invention

Therefore, an object of the present invention is to provide an air conditioner outlet structure capable of air-conditioning so that the temperature distribution in a room becomes uniform without a sense of draft without a swing function of a flap.

To achieve the above object, the present invention provides a casing, a turbo fan in which a shaft is disposed in the casing in a front-rear direction, and which blows air sucked from the front side radially outward with respect to the shaft. A heat exchanger disposed in front of the turbofan in the casing, and an outlet for blowing air from the evening fan in the vertical and horizontal directions is provided in the casing. Equipped with flaps to control the wind direction of the blowout from each of the above outlets The outlet structure of the air conditioner is characterized in that the reach of the outlet air from the upper outlet is longer than the reach of the outlet air from the lower, right and left outlets.

According to the present invention, the blown air flows and circulates along the wall surface, the ceiling surface, and the floor surface so as to enclose the living space in the room by the four-way blowing. By making the reach of the air blown out from the upper outlet larger than the reach of the blown air from the lower, right and left outlets, for example, the direction of the air blown out from the upper outlet is made forward. The air velocity near the ceiling is pushed to the opposing wall by increasing the wind speed faster than the other outlets, and the air flows from the wall to the lower floor, enclosing the indoor living space. Stir the air efficiently. Therefore, the warm air in the upper part of the room is circulated, especially during heating, to prevent the soaring of the warm air and the stagnation of the warm air in the upper part of the room, so that the temperature distribution in the room becomes uniform without a sense of draft without the flap swing function. It can be air-conditioned.

The air outlet structure of the air conditioner according to one embodiment is the air outlet structure of the air conditioner according to claim 1, wherein the air outlet structure is perpendicular to the axis of the fan in the direction of air blowing from the upper air outlet. The angle of inclination with respect to the plane is greater than the angle of inclination with respect to the plane perpendicular to the axis of the evening fan in the blowout direction from the lower, right and left outlets.

According to the above embodiment, the inclination angle of the direction of the blow-off from the upper outlet with respect to a plane perpendicular to the axis of the evening fan is set to the axis of the turbo fan in the blow-out direction from the lower, right and left outlets. By making the inclination angle larger than the plane perpendicular to the plane, the air from the upper outlet blows out toward the wall facing the wall where the indoor unit is installed. Therefore, the upper side than the reach of the air blown out from the lower, right and left outlets The reach of the air blown out from the outlet can be increased.

The air outlet structure of the air conditioner according to one embodiment is the air outlet structure of the air conditioner according to claim 1 or 2, wherein a length from a front edge to a rear edge of the upper flap is: The length of the flaps on the lower, right and left sides is longer than the length from the leading edge to the trailing edge.

In the above embodiment, by making the length from the leading edge to the trailing edge of the upper flap longer than the length from the leading edge to the trailing edge of the other flaps, the airflow can be more effectively controlled. The air can easily be blown forward from the air outlet.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an exploded perspective view of a main part of an indoor unit using an air outlet structure of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a front view of the indoor unit.

FIG. 3 is a cross-sectional view taken along line III-III in FIG.

FIG. 4 is a schematic configuration diagram of the indoor unit.

FIG. 5 is a cross-sectional view of a main part showing an upper outlet structure of the indoor unit.

Fig. 6 is a cross-sectional view of the main part showing the lower, left and right outlet structures of the indoor unit.

FIG. 7 is a diagram showing a state where the indoor unit is mounted on a wall surface in a room.

FIG. 8A is a diagram showing a state of airflow of an indoor unit of a conventional air conditioner, and FIG. 8B is a diagram showing a state of airflow of an indoor unit of an air conditioner according to an embodiment of the present invention. Best form to do

Hereinafter, the outlet structure of the air conditioner of the present invention will be described in detail with reference to the illustrated embodiment.

FIG. 1 is an indoor view of an air conditioner using an air outlet structure according to an embodiment of the present invention. FIG. 1 is an exploded perspective view of a main part of the machine, 1 is a substantially square-shaped bottom frame whose rear side is attached to an indoor wall surface, and 2 is a mounting section provided at a substantially center of the bottom frame 1. Motors 3 and 3 fixed via fixing plates 1 and 2 have their shafts arranged in the front and rear direction on the bottom frame 1 and the shaft is driven by the motor 2 and the air sucked from the front side is used as the shaft. Turbo fan that blows radially outward, 4 is a bell mouth attached to the bottom frame 1 on the front side of the turbo fan 3, 5 is a heat exchanger attached to the front side of the bell mouth 4, 6 is the above A front panel having a substantially square suction port 6a is attached to the front side of the heat exchanger 5 on the bottom frame 1, and 7 is attached to the suction port 6a of the front panel 6, and an air filter 8 is provided on the rear side. It is an attached suction grill. A circular hole 14 is provided substantially at the center of the bellmouth 4, and a drain pan 13 is arranged below the bellmouth 4. The bottom frame 1 and the front panel 6 constitute a casing.

FIG. 2 is a front view of the indoor unit when the suction grille 7 and the front panel 6 shown in FIG. 1 are removed. As shown in FIG. 2, an outlet 21 on the upper side of the bottom frame 1, an outlet 22 on the lower side, an outlet 23 on the right side, and an outlet 24 on the left side are respectively provided. An upper flap 31, a lower flap 32, a right flap 33 and a left flap 34 are attached to the outlets 21 to 24, respectively. The upper flap 31, lower flap 32, right flap 33 and left flap 34 are connected to the upper flap stepping motor 41, the lower flap stepping motor 42, the right flap stepping motor 43 and Each is driven by a left flapping stepping motor 44 to control the wind direction of the air blown out from the air outlets 21 to 24.

FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2 .The turbo fan 3 and the heat exchanger 5 are thinned and attached to the bottom frame 1. The heat sink 2 is housed in the recess forming the curved surface 3 a of the fan fan 3. The air sucked in from the front by the turbo fan 3 passes through the suction grille 7, the air filter 8 and the heat exchanger 5, and as shown by arrows R1, R2, the upper, lower, left and right outlets 21, 22, (FIG. 3). Now only show two). At the upper outlet 21, when the upper flap 31 is at a predetermined opening, the air from the turbo fan 3 is blown upward and obliquely upward, and the wind direction is perpendicular to the axis of the evening fan 3. The angle is about 60 degrees to the plane. On the other hand, at the lower outlet 22, when the lower flap 32 is at the predetermined opening, the air from the evening fan 3 is blown obliquely downward and forward, and the wind direction is directed to the axis of the turbofan 3. The angle is about 30 degrees to the vertical plane. The right outlet 23 and the left outlet 24 (shown in FIG. 2) have the same structure as the lower outlet 22 and have the right flap 33 and the left flap 3 ( (See Fig. 2), the air from the evening fan 3 is blown obliquely forward and sideward when the opening is at a predetermined angle, and its wind direction is approximately 30 degrees with respect to a plane perpendicular to the axis of the evening fan 3. Angle. The upper outlet 21 has substantially higher blowing resistance than the other outlets 22 to 24, so that the blowing speed is higher. In this way, the direction of the blowout from the upper outlet 21 is directed forward, and the wind speed of the blowout from the outlet 21 is made faster than the other outlets 22 to 24. 2 The reaching distance of the blown air from 1 is larger than the other outlets 22 to 24.

Fig. 4 shows a schematic configuration diagram of the indoor unit. The indoor unit has an upper flap stepping motor 41, a lower flap stepping motor 42, and a right flap stepping motor. 4 3 and stepping motor for left flapping 4 4 and above stepping motor 4 1 to 4 4 and evening A control device 10 for controlling the bofan 3 and the like. The control device 10 is composed of a micro-combination and an input / output circuit, etc., and outputs control signals to the stepping motors 41 to 44 in accordance with the operation state, so that the upper flap 31, the lower flap 3 2, It has a flap control unit 10 a for controlling the degree of right flap 33 and left flap 34. The above-mentioned stepping motors 41 to 44 and the flap controller 10a of the controller 10 constitute an airflow controller. 5 and 6 are a cross-sectional view of a main part of an upper air outlet of the indoor unit of the air conditioner and a cross-sectional view of a main part of a lower, right and left air outlet. 5 and 6 are for describing in detail the air outlet structure of the indoor unit of the air conditioner, and are different from the air outlet structure of the indoor unit shown in FIG.

As shown in FIG. 5, a guide portion 51 having a curved surface 5 la that is gradually curved diagonally forward from the turbo fan 3 side on the rear surface side of the upper air outlet 53 of the casing 50. In addition, a guide portion 52 having a curved surface 52 a that gradually curves obliquely forward from the evening boat fan 3 side is disposed on the front side of the air outlet 53. The guide sections 51 and 52 form an outlet passage for blowing conditioned air obliquely upward and forward. Further, an upper flap 54 rotatably supported on a rotating shaft 55 is attached to the outlet 53. The upper flap 54 has a front edge gradually curved toward the evening fan 3 so that the air flows smoothly along the outlet passage when the upper flap 54 is opened at a predetermined angle. In addition, a plurality of vertical plates 56 (only one is shown in FIG. 5) are provided on the front side of the wing surface of the upper flap 54 so as to extend substantially vertically at predetermined intervals. When the upper flap 54 is set at a predetermined angle, the guide sections 51, 52 and the upper flap 54 allow the direction of the air blown from the turbo fan 3 to be obliquely upward and forward, and the turbo fan 3 The airflow is controlled so that the angle formed by a plane perpendicular to the axis is approximately 60 degrees. Above upper flap 5 To narrow the opening of 4, the upper flap 54 is turned in the direction of arrow R3. Also, as shown in FIG. 6, a curved surface 6 that gradually curves obliquely forward from the evening fan 3 side to the rear side of the lower, right and left outlets 63 of the casing 50. The guide part 6 1 having la is placed on the front side of the outlet 6 3, and the guide part 6 2 having a curved surface 6 2 a that gradually curves obliquely forward from the turbo fan 3 side. Has been arranged. In the lower outlet 63, the guides 61, 62 form an outlet passage for blowing conditioned air obliquely downward and forward from the outlet 63, and in the left and right outlets 63, this guide is provided. The outlets 6 1 and 6 2 form an outlet passage for blowing conditioned air obliquely laterally and forward from the outlet 53. Further, the lower, right and left flaps 64 rotatably supported by the rotating shaft 65 are attached to the outlet 63. On the front side of the wing surface of the upper flap 64, a plurality of vertical plates 66 (only one is shown in FIG. 6) extending substantially vertically at predetermined intervals are provided. In the lower outlet port 6 3, when the lower flap 6 4 is set at a predetermined angle, the guide sections 6 1, 6 2 and the flap 6 4 change the direction of the air blown from the turbo fan 3 forward. The airflow is controlled obliquely downward so that the angle between the turbo fan 3 and a plane perpendicular to the axis is approximately 30 degrees. Further, at the right and left outlets 63, when the right flap 64 and the left flap 64 are set at a predetermined angle, the air is blown out of the turbo fan 3 by the guide portions 61, 62 and the flap 64. The airflow is controlled so that the angle of the generated air diagonally forward and the vertical plane including the axis of Yuichi Bohuan 3 is approximately 30 degrees. To reduce the opening of the flap 64, rotate the flap 64 in the direction of arrow R4.

In the air conditioner with the above configuration, as shown in Fig. 3, when the motor 2 is driven, the turbo fan 3 rotates, and the air is sucked in from the axial front of the turbo fan 3 through the heat exchanger 5, and Air along the curved surface of the curved part 3a of Bofan 3 Flows, and the conditioned air heat exchanged by the heat exchanger 5 is blown radially outward from the upper, lower, left and right outlets 21 to 24 (shown in FIG. 2). At this time, the upper flap 31 and the lower flap 3 2 shown in FIG. 2 are controlled by controlling the stepping motors 41 to 44 by the flap controller 10a of the control device 10 shown in FIG. The opening degree of 33 and the left flap 34 is controlled to control the wind direction of the blowout from the outlets 21 to 24, respectively. For example, as shown in FIG. 7, when the indoor unit 70 of the present invention is mounted on a wall in a room and blows out in four directions, up, down, left and right, as shown in FIG. 8B, air blown in four directions is obtained. Circulates along the wall, ceiling, and floor to wrap around the living space in the room, preventing people from feeling a draft in the living space S2, and improving the comfort during air-conditioning operation. .

As described above, in the air outlet structure of the air conditioner, the upper air outlet structure (shown in FIG. 5) has a longer reach of the air blown out than the lower, right and left air outlet structures (shown in FIG. 6). The air blown out from the upper outlet 53 is efficiently discharged together with the air flow from the lower, right and left outlets 63 so as to enclose the living space in the room. It stirs and circulates the warm air in the upper part of the room, especially during heating, to prevent soaring warm air and stagnation of the warm air in the upper part of the room. Therefore, it is possible to perform air conditioning with a uniform temperature distribution in the room without a sense of draft without swinging the flap, thereby improving comfort.

In addition, the inclination angle of the blow-out direction from the upper outlet 21 with respect to the plane perpendicular to the axis of the fan 3 is set to the same as that of the blow-out direction from the lower, right and left outlets 22 to 24. Since the angle of inclination with respect to the plane perpendicular to the axis of the bofan 3 was approximately 60 degrees, which is larger than approximately 30 degrees, the air from the upper outlet 31 faces the wall surface on which the indoor unit is mounted. Forward toward the wall Blow out. Therefore, the reaching distance of the air blown out from the upper outlet 31 can be made longer than the reach of the air blown out from the lower, right and left outlets 32, 33, 34.

Also, as shown in FIG. 5, the length from the leading edge to the trailing edge of the upper flap 54 is longer than the length from the leading edge to the trailing edge of the lower, right and left flaps 64. The airflow can be effectively controlled, and the air can be easily blown forward from the upper outlet 21. In addition, the upstream side of the upper flap 54 is curved, so that the air blown out from the turbo fan 3 is smoothly taken into account, thereby making it easy to blow air forward.

In the above embodiment, the wind direction of the blowout from the upper outlet 21 is set to approximately 60 degrees with respect to a plane perpendicular to the axis of the turbo fan 3, and the wind direction of the blowout from the lower blowout 22 is The angle is set to approximately 30 degrees with respect to the plane perpendicular to the axis of the fan fan 3, and the wind direction of the blowout from the right and left outlets 23, 24 is approximately 3 degrees with respect to the plane perpendicular to the axis of the evening fan 3. Although it was set to 0 degrees, it is sufficient if the distance of the blown air from the upper outlet is larger than the reach of the blown air from the lower, right and left outlets. The angle of the wind direction of the balloon may be set to an appropriate value.

Industrial applicability

INDUSTRIAL APPLICABILITY The outlet structure of an air conditioner of the present invention is used for an air conditioner that blows out conditioned air vertically and horizontally.

Claims

The scope of the claims

1. The casing (1,6) and the turbo fan that has a shaft arranged in the casing (1,6) in the front-back direction and blows air sucked from the front side radially outward to the shaft. (3) and a heat exchanger (5) disposed in front of the evening fan (3) in the casing (1, 6). Flaps (21-24) are provided to blow air blown out from the single fan (3) in the vertical and horizontal directions, and the flaps (21-24) control the wind direction of the air blown from the outlets (21-24), respectively. 31-34) is the air outlet structure of an air conditioner equipped with

An air conditioner characterized in that the reach of the blown air from the upper outlet (21) is greater than the reach of the blown air from the lower, right and left outlets (22 to 24). Outlet structure.

2. The air outlet structure for an air conditioner according to claim 1, wherein

The inclination angle of the direction of the air blown out from the upper outlet (21) with respect to the plane perpendicular to the axis of the turbo fan (3) is calculated from the lower, right and left outlets (22, 23, 24). An air outlet structure for an air conditioner, wherein an angle of an outlet of the air conditioner is larger than an angle of inclination with respect to a plane perpendicular to the axis of the evening fan (3).

3. The air outlet structure for an air conditioner according to claim 1 or 2, wherein a length from a front edge to a rear edge of the upper flap (21) is equal to the length of the lower, right and left sides. The air outlet structure of an air conditioner, wherein the length of the flap (22 to 24) is longer than the length from the leading edge to the trailing edge.