JPH0719587A - Outlet of air conditioner - Google Patents

Abstract

PURPOSE:To prevent a decrease of the quantity of let-out air and an increase of noise by a method wherein a distance between the center of louver and the wall surface on the outer periphery side of the main body of an outlet is made to be in the range of a prescribed multiple of the opening width of the outlet and the main body or a part of the main body is buried in the ceiling. CONSTITUTION:In a range wherein a set angle theta of a louver 9 is smaller than an angle beta of deflection of an outlet, the center (a) of the louver is positioned inside the outlet 10, the windward-side fore end (b) of the louver is made to be on the leeward of the boundary (d) of a deflected air passage of the outlet and a joining part of the outlet, the leeward-side fore end (c) of the louver is made to be on the leeward of an outlet opening (e), a set distance H of the louver is made to be in the range of being 0.45 to 0.5 times as large as the opening width D of the outlet, and a part of the main body is buried in the ceiling. While a usual operation of a let-out air flow sticking on the wall surface 5a of the ceiling at the time of lateral setting of a blowing direction is maintained, according to this constitution, a setting position of the louver is brought near to the wall surface 10a on the outer periphery side of the main body of the outlet 10 under the condition of lateral-downward resetting of the blowing direction. Thereby hindrance to the let-out air flow is reduced and an increase of a draft resistance of the outlet 10 can be suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner outlet having a blower and a heat exchanger.

[0002]

2. Description of the Related Art In recent years, air conditioners have been widely used from business to household use, and there is a tendency for improved comfort and lower noise due to diversification of equipment installation conditions and downsizing of equipment. It is in.

The above-mentioned conventional air conditioner will be described below with reference to the drawings. FIG. 4 shows the structure of a conventional indoor unit of a separate type air conditioner in which a part of the main body is embedded in the ceiling. In the figure, 1 is a centrifugal blower, 2 is a heat exchanger arranged at a predetermined distance from the blower 1b of the blower 1, and 3 is the blower 1 and the heat exchanger 2 inside. It is a box to store. Reference numeral 4 is a heat insulating material adhered to the inside of the box body 3, 5 is a ceiling material, 6 is a panel exposed in the room, and a suction port 7 and a blow port 8 are provided.

FIG. 5 is a sectional view of the conventional outlet 8 when the outlet direction is set downward, and FIG. 6 is a sectional view of the conventional outlet 8 when the outlet direction is set laterally. 8a is an outlet 7
Of the main body along the ceiling surface 5a, 8b is the inner side of the main body of the air outlet 7, 9 is a louver, a is the center of the louver 9, b is the windward tip of the louver 9, and c is the louver 9. Leeward end, d is the boundary between the deflecting air passage of the air outlet 8 and the connecting air passage, e is the opening of the air outlet 8, L is the air deflecting air passage length of the air outlet 8, D is the air outlet opening width, H is the louver set distance between the center a of the louver and the outer peripheral side wall surface of the body of the air outlet 8, W is the width of the air passage connecting to the air outlet 8, J is the louver length, and β is the air outlet 8
The air outlet deflection angle formed by the center line of the deflected air passage and the ceiling surface 5a, and θ is the louver setting angle formed by the louver 9 and the ceiling surface 5a. In addition, the outlet 8 is heated by the heat exchanger 3 when the outlet direction is set sideways with the louver setting angle θ smaller than the outlet deflection angle β for the purpose of improving thermal comfort during cooling operation. In order to stably attach the airflow to the ceiling surface 5a, the flow rate of the airflow that can be deflected by the louver 9 is increased, and the airflow blown out from the outlet opening e is applied to the ceiling surface 5a.
The louver length J is made longer than the blowout air passage length L so that the louver can be guided to a, and the louver leeward end c is leeward from the outlet opening e, and the louver set distance H is the outlet opening width D. Was set larger than 0.5D.

The operation of the air conditioner configured as above will be described below. First, the air in the room sucked into the inside of the box body 3 through the suction port 7 provided in the panel 6 is sucked into the suction port 1a of the blower 1, and static pressure and dynamic pressure are applied to the air from the blowout port 1b of the blower 1. The air is blown out, heat is exchanged by the heat exchanger 2, the blown airflow is deflected from the blowout port 8 of the box body 3 by the louver 9 and blown out into the same room again, which serves to adjust the room temperature.

[0006]

However, in the above structure, the louver length J is made longer than the blowing air passage length L in order to improve the thermal comfort in the cooling operation, and the louver leeward side is provided. With the tip c as leeward from the outlet opening e,
Since the louver set distance H is set to be larger than 0.5D of the outlet opening width D, when the louver set angle θ is set to be smaller than the outlet deflection angle β, the louver 9 through which most of the outlet airflow passes when the outlet direction is set sideways. Outer body 8 of the outlet 8
The flow passage formed by a and n becomes narrower, and the louver 9 approaches the inner wall surface of the main body of the outlet 8 even when the outlet direction is set downward with the louver setting angle θ being equal to the outlet deflection angle β. Therefore, the flow of the airflow is obstructed, and the ventilation resistance of the air outlet 8 increases under both setting conditions when the airflow direction is set sideways or downward, which reduces the airflow rate and reduces thermal comfort and airflow. There was a problem that noise increased.

Therefore, while maintaining the effect of stably adhering the blown airflow to the ceiling wall surface 5a when the blowout direction is set to the sideways direction, the blowout direction is changed to the sideways direction by changing the louver setting angle θ.
Suppresses the increase of ventilation resistance under both setting conditions when setting downward,
There is a problem that it is necessary to suppress the decrease in the air flow rate, improve the thermal comfort, and reduce the noise level transmitted to the room.

In view of the above problems, the present invention has a structure of an outlet that deflects the outlet airflow by a single louver that is axially supported inside the outlet. After adhering to the wall surface, under both conditions of setting the blowout direction sideways and downward, by suppressing the increase in ventilation resistance at the blowout port, the amount of blown air is increased to improve thermal comfort and noise transmitted to the room. It is intended to provide an outlet for an air conditioner that realizes a reduction in level.

[0009]

In order to solve this problem, the air outlet of the air conditioner of the present invention has a blower for boosting and blowing air, and a single unit arranged at a predetermined interval from the blower. It is composed of a plurality of heat exchangers, a box body containing the blower and the heat exchanger inside, exposes a part of the air outlet provided in the box to the room, and The outside of the main body of the exposed portion is along the ceiling surface, and one louver is axially supported inside the air outlet, and the angle between the ceiling surface and the center line of the deflected air passage of the air outlet is It is set to a predetermined angle β, the opening width of the air outlet is made smaller than the communication air passage width to the air outlet, and the length of the louver is larger than the deflection air passage length of the air outlet. Then
Further, a rotation center point of the louver in a vertical cross section of the air outlet is provided between the louver and a body outer peripheral side wall surface of the air outlet, and an angle θ between the ceiling surface and the louver.
Is smaller than β, the center of the louver is located inside the air outlet, and the windward tip of the louver is located at a boundary between the deflected air passage of the air outlet and the communication air passage to the air outlet. Is also leeward, and the leeward end of the louver is further downwind than the opening of the outlet, and the distance H between the center of the louver and the outer peripheral side wall surface of the main body of the outlet is the opening width of the outlet. In the range of 0.45 to 0.5D of D, the main body or a part of the main body is embedded in the ceiling.

[0010]

In the present invention, the opening width of the air outlet is made smaller than the width of the air passage connecting to the air outlet, the louver length is made larger than the length of the deflected air passage of the air outlet, and the vertical cross section of the air outlet is made. The rotation center point of the louver at is provided between the louver and the outer peripheral side wall surface of the main body of the outlet, and the center of the louver is located inside the outlet within a range where the angle θ between the ceiling surface and the louver is smaller than β. In addition, the louver windward tip is located leeward of the boundary between the outlet deflection air passage and the outlet joint, and the louver leeward tip is located leeward of the outlet opening, with the center of the louver and the outer peripheral side of the outlet. Since the distance H to the wall surface is in the range of 0.45 to 0.5D of the outlet opening width D, the portion where the flow path formed by the louver and the outside of the outlet main body is narrowed when the outlet direction is set horizontally. How to blow out by reducing the flow rate of blown air By reducing the obstruction of the flow of the outlet airflow when the orientation is set to face down, the effect of adhesion to the ceiling wall surface of the outlet airflow is maintained when the orientation of the outlet airflow is set horizontally, and when the orientation of the outlet airflow is set to both sideways and downward. By suppressing the increase in ventilation resistance at the air outlet, the amount of air blown is increased, the thermal comfort is improved, and the noise level transmitted to the room is reduced.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In addition, in order to avoid duplication, the same components as those of the conventional example will be denoted by the same reference numerals and description thereof will be omitted.

The structure of the indoor unit of the separate type air conditioner of the embodiment of the present invention is the same as that of the conventional example shown in FIG. 4 except for the portion of the air outlet, and FIG. FIG. 2 shows an outlet at the time of setting, and FIG. 2 shows an outlet at the time of setting the outlet direction sideways according to an embodiment of the present invention.

In the figure, the difference from the conventional air outlet is that the louver center a is located inside the air outlet within a range where the louver setting angle θ is smaller than the air outlet deflection angle β, and the louver wind side tip c is located at The louver setting distance H is set to 0. 0 of the outlet opening width D with the louver leeward tip c as leeward of the boundary d between the outlet deflection air passage and the outlet connecting portion, and the louver leeward end c as leeward of the outlet opening e. This is a point in the range of 45 to 0.5D.

The operation of the air conditioner configured as above will be described below. First, the air in the room sucked into the inside of the box body 3 through the suction port 7 provided in the panel 6 is sucked into the suction port 1a of the blower 1, and static pressure and dynamic pressure are applied to the air from the blowout port 1b of the blower 1. It is blown out, heat is exchanged by the heat exchanger 2, the blown airflow is deflected from the blowout port 10 of the box body 3 by the louver 9 and blown out into the same room again, and serves to adjust the room temperature.

Here, the louver setting distance H of the air outlet 10 of the panel 6 exposed in the room is set within the range where the louver setting angle θ is smaller than the air outlet deflection angle β.
In the case of setting the louver setting angle θ smaller than the outlet deflection angle β by setting the louver installation position closer to the outer peripheral side wall surface of the main body of the outlet 10 in the range of 0.45 to 0.5D. , The louver set distance H is made smaller, the louver length J is made larger than the deflected air duct length L, and the louver leeward side tip c is leeward of the outlet opening e, so that thermal comfort is achieved during cooling operation. While maintaining the conventional action of the blowout airflow that adheres to the ceiling surface, which is necessary for improving the airflow, reducing the blowout airflow that passes through the part where the flow path formed by the louver and the outside of the blowout port changing unit becomes narrower When the setting angle θ is set to be equal to the outlet deflection angle β downward in the outlet direction, the louver setting distance H is set to be small, and the louver leeward tip c is the boundary d between the outlet connecting portion and the outlet deflecting air passage. Than Since it is below, by keeping the blowout airflow from obstructing, it retains the adhesion to the ceiling wall surface of the blowout airflow when the blowout airflow is set sideways, and also when the blowout airflow is set to both the sideways and downward directions. It suppresses the increase in ventilation resistance, increases the amount of airflow, improves thermal comfort, and reduces the noise level transmitted to the room.

FIG. 3 shows the results of analysis of the relationship between the louver setting angle of the outlet 10 and the ventilation resistance and the outlet airflow angle in one embodiment of the present invention. According to this result, when the louver installation distance H is in the range of 0.45 to 0.5D of the outlet opening width D, the blowing airflow is attached to the ceiling surface 5a when the blowing direction is set to the lateral direction, and then downward. -The maximum effect of reducing ventilation resistance can be obtained under both horizontal setting conditions.

As described above, according to the present embodiment, the louver center a is located inside the outlet and the louver-side tip c is blown within the range where the louver setting angle θ is smaller than the outlet deflection angle β. The louver setting distance H is set to 0.45 of the outlet opening width D with the louver leeward tip c as leeward of the boundary d between the outlet deflection air passage and the outlet connecting portion, and the louver leeward end c as leeward of the outlet opening e. By setting the range to 0.5D, the louver installation position is set to the outlet in both the blowout sideways and downward setting conditions while maintaining the conventional effect that the blowout airflow adheres to the ceiling wall when the blowout direction is set horizontally. It can be close to the outer peripheral side wall surface of the main body, suppresses the obstruction of the flow of the blown airflow, suppresses the increase in the ventilation resistance at the blowout port, and prevents the decrease in the air flow rate and the increase in noise.

Therefore, while maintaining the adhesion of the blowout airflow to the ceiling wall surface, under both setting conditions of setting the blowout direction sideways or downward, the increase of the ventilation resistance of the blowout port 10 is suppressed, and the blown air volume is reduced and the noise is increased. Suppress.

In this embodiment, the indoor unit having one air outlet has been described as an example, but the same effect can be obtained with an indoor unit having a plurality of air outlets.

[0020]

As described above, according to the present invention, a blower, a single or a plurality of heat exchangers arranged at a predetermined distance from the blower, and the blower and the heat exchanger are housed inside. A box body, a part of the air outlet provided in the box body is exposed to the room, and the outside of the main body of the exposed portion of the air outlet is along the ceiling surface, and inside the air outlet. Is 1
The louvers are axially supported, and the angle between the ceiling surface and the center line of the deflection air passage of the outlet is set to a predetermined angle β, and the opening width of the outlet is set to the outlet. The width of the louver is smaller than the width of the communication air passage, and the length of the louver is larger than the length of the deflection air passage of the air outlet, and the rotation center point of the louver in the vertical cross section of the air outlet is the louver. It is provided between the outlet and the outer peripheral side wall surface of the main body, and the center of the louver is located inside the outlet within a range in which the angle θ between the ceiling surface and the louver is smaller than β, and The leeward windward end of the louver is leeward from the boundary between the deflection air passage of the air outlet and the communication air passage to the air outlet, and the leeward end of the louver is leeward from the opening of the air outlet, Also, the center of the louver and the outer peripheral side of the main body of the outlet. By embedding the main body or a part of the main body in the ceiling by setting the distance H to the surface to be in the range of 0.45 to 0.5D of the opening width D of the blowout port, the blowout airflow at the time of setting the blowout direction laterally While maintaining the conventional effect of adhering to the ceiling wall surface, the louver installation position is brought closer to the outer wall surface of the outlet air duct main body to suppress the obstruction of the flow of the blowout airflow under both setting conditions, sideways and downward, in the blowout direction, thus providing ventilation resistance. It is possible to obtain the maximum effect of the reduction, suppress the increase in the ventilation resistance at the air outlet, increase the air blowing amount, improve the thermal comfort, and reduce the noise level transmitted to the room.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an outlet of an air conditioner when a blowing direction is set downward according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the air outlet of the air conditioner when the blowout direction is set to the sideways according to the embodiment of the present invention.

FIG. 3 is a characteristic diagram showing a relationship between a louver setting angle, ventilation resistance, and an outlet airflow angle.

FIG. 4 is a sectional view of a conventional air conditioner.

FIG. 5 is a cross-sectional view of a conventional air conditioner outlet when the outlet direction is set downward.

FIG. 6 is a cross-sectional view of the air outlet of the conventional air conditioner when the blowing direction is set downward.

[Explanation of symbols]

 9 Louver 10 Air outlet β Air outlet deflection angle θ Louver setting angle L Deflection wind path length D Air outlet opening width H Louver setting distance J Louver length

Claims (1)

[Claims] 1. A blower, a single or a plurality of heat exchangers arranged at a predetermined distance from the blower, and a box body in which the blower and the heat exchanger are housed. Part of the air outlet provided on the box is exposed in the room,
And, the outside of the main body of the exposed portion of the air outlet is along the ceiling surface, and one louver is axially supported inside the air outlet, and the deflection air paths of the ceiling surface and the air outlet are The angle with the center line is set to a predetermined angle β, the opening width of the air outlet is made smaller than the communication air passage width to the air outlet, and the length of the louver is the deflected wind of the air outlet. A length greater than the length of the passage, and a rotation center point of the louver in the vertical cross section of the outlet is provided between the louver and the outer peripheral side wall surface of the main body of the outlet, and the ceiling surface and the louver. The angle between the ceiling surface and the center line of the deflection air passage of the outlet is smaller than the angle, the center of the louver is located inside the outlet, and the windward end of the louver is From the boundary between the deflection air passage of the outlet and the air passage connecting to the outlet Leeward, the leeward end of the louver is further downwind than the opening of the outlet, and the distance between the center of the louver and the outer peripheral side wall surface of the main body of the outlet is 0 of the opening width of the outlet. An air conditioner outlet in which the main body or a part of the main body is embedded in the ceiling in a range of 45 to 0.5 times.