JPS63172856A - Ceiling buried type air conditioner - Google Patents

Abstract

PURPOSE:To get an air blowing direction required for improving a comfortable feeling in an indoor environment by a method wherein one of guide walls opposing to each other is arranged in a substantial linear form near a blowoff port of a blowing passage and the other guide wall is made to have taper a in its diameter. CONSTITUTION:A blowing part 13a near a blowoff port 9 of a blowing passage 8 has an arcular section having an equal radius of curvature and a blowing port 13b has a linear section. An axis 14 is positioned at a center part of a curvature radius, a louver 15 is rotatably supported and has a vane-shaped section, its extremity end is rotated and contacted with a linear guide wall 13b. The blowoff passage 8 has a tapered structure with a guide wall 12a. In case of performing a cooling operation, the louver 15 is moved to a broken line position, resulting in that air from the blowoff passage 8 is flowed along the lower surface of the louver 15, its blowoff direction is in a horizontal direction. An occupant does not accept direct cold air and so a universal cooling in a room can be attained. In case of heating operation, if the louver 15 is set at its solid line position, the blowoff direction is 65 deg.-75 deg. downwardly from the horizontal direction and flowed along a floor surface, so that the indoor area can be heated uniformly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a ceiling-embedded air conditioner installed inside a ceiling, and particularly to an improvement of its air outlet path.

[Conventional technology]

Figure 4 is a cross-sectional view of a conventional ceiling-embedded air conditioner shown in, for example, Utility Model Application No. 59-91512. The installed box-shaped main body, (3) is a ceiling exposed panel provided at the bottom of this main body (2), (4) is this ceiling exposed panel (3)
(5) is a filter provided near the suction port (4), (6) is a blower provided in the main body (2), and (7) is the same as the main body (2). (8) is an air outlet for guiding air from the heat exchanger (7); (9) is an outlet provided on the bottom of the embedded air conditioner; 10a) and (10b) are guide walls forming part of the air outlet (8) near the outlet (9), and aO is a guide wall provided in the air outlet (8) near the outlet (9). It is a louver that has been painted.

FIG. 5 is an enlarged sectional view of the vicinity of the air outlet (9).

Next, the operation will be explained. By operating the blower (6), indoor air flows through the filter (5) from the suction port (4).
After flowing into the main body (2) through the heat exchanger (7) and exchanging heat with the heat exchanger (7), the air flows through the air outlet (9) through the air outlet (8).
The air is blown back into the room, and the room temperature is adjusted.

The blowing direction of the air is determined by changing the direction of the louvers all.

[Problem that the invention attempts to solve]

In the conventional ceiling-embedded air conditioner as described above, the louver installed in the air outlet path does not protrude from the ceiling exposed panel, so it is good in terms of design, but its ability to change the air outlet direction is low, and the above-mentioned Even if the air outlet is tilted approximately 30° from the horizontal plane as in the conventional example, the blowing direction required to improve the comfort of the indoor environment (during heating, the blowing direction should be 65° downward from the horizontal plane) 75°, and 10' to 20° downward from the horizontal plane during cooling).Furthermore, operating the looper causes a change in the pressure in the outlet air duct, which changes the air volume, making it impossible to operate with stable performance. There was a problem.

This idea was made to solve these problems, and aims to provide a ceiling-mounted air conditioner that can provide the air blowing direction necessary to improve the comfort of the indoor environment and can operate with stable performance. purpose.

[Means for solving problems]

In the ceiling-mounted air conditioner according to this invention, the air outlet near the outlet is formed by two indoor walls facing each other, one of which is almost linear toward the outlet, and the other is gradually reduced. The structure is such that the tip of the louver, which is provided near the air outlet and has a rotation axis in the horizontal direction, can reach the substantially linear guide wall surface when rotating.

[Effect]

In this device, one guide wall that forms the air outlet has a substantially linear structure, and the other guide wall has a structure that gradually reduces toward the air outlet, and when the tip of the louver rotates, it forms a nearly linear guide. It is designed to reach the wall surface, and when heating, by positioning the louver vertically, the warm air is blown out almost vertically downward due to the linear indoor wall.
During cooling, by rotating the louver to a position where its tip reaches the linear guide wall, the louver and the reduced-structure guide wall blow out cold air almost horizontally, evenly during heating and cooling. It can heat and cool the room.

〔Example〕

FIG. 1 is a sectional view of a ceiling-embedded air conditioner showing an embodiment of this invention.
~+91 is the same as the above conventional example. (12a) , (
12b) is an opposing guide wall made of hard rubber or plastic resin that has heat insulation properties for a part of the vicinity of the outlet (9) of the outlet air passage (8), and (13a) and (13b) are this guide wall. (12a) On the outlet (9) side of (12b), (
13a) is a blowout section having an arcuate cross section with the same radius of curvature; (13b) is a blowout section having a linear cross section;
0 is an axis located at the center of the radius of curvature of this blow-off part (13a), and Q51 is rotatably supported on this axis, and the tip thereof is rotated by a louver with an airfoil-shaped cross section, so that it can move along the above straight line. It comes into contact with a shaped guide wall (13b). Qe is a thin ceiling exposed panel.

Note that the blowing air passage (8) has a structure that is gradually reduced by the guide wall (12a).

FIG. 2 is an enlarged sectional view of the vicinity of the air outlet (9).

[Detailed explanation of the operation of the embodiment]

In the ceiling-embedded air conditioner configured as described above, cooling/heating operations are performed in the same manner as in the conventional example, but the air blowing direction at the air outlet (9) is different from that at the air outlet (13).
a) It has a wide angle due to (13b) and the structure of the louver α.

For example, when the louver 09 is placed in the position shown by the broken line in Figure 2 during cooling operation, the air from the air outlet (8) flows along the outlet (13a) and the lower surface of the looper 0, and the direction of the air is approximately It is oriented horizontally (indicated by the dashed arrow) and can evenly cool the room without blowing cold air directly onto the occupants.

During heating, if the 0th floor of the looper is placed in the position shown by the solid line in Figure 2, the blowing direction will be 65° to 75° (solid line arrow) below the horizontal due to the action of the linear guide wall (j2b), and the hot air will be Since it reaches the floor sufficiently and flows along the floor, it can evenly heat the room.

Figure 3 shows the indoor temperature distribution diagram during heating of the ceiling-embedded air conditioners of the embodiment of this invention and the conventional example. You can see that you can get the environment.

Furthermore, in this invention, even if the direction of the louver QSI is changed, there is little change in the pressure inside the outlet air passage (8), so there is no change in air volume, and stable operation can be performed.

Since both guide walls (12a) (12b) of the air outlet passage (8) provided on the exposed ceiling panel 0[9] and the louver 09 are arranged inside the ceiling, there is a thin (
Thickness number 1-) Only the exposed ceiling panel ae protrudes, but it also has a design effect.

[Effect of idea]

As explained above, this device has two opposing guide walls near the outlet of the air outlet, one of which has a nearly straight structure toward the outlet and the other of which has a structure that is gradually reduced, so that the range of change in the air outlet direction is reduced. This has the effect of increasing the number of indoor spaces and creating a more comfortable indoor environment.

Furthermore, since only the thin exposed ceiling panel protrudes below the ceiling surface, the occupants do not feel oppressed.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a ceiling-mounted air conditioner showing an embodiment of this invention, Figure 2 is an enlarged sectional view of the vicinity of the air outlet in Figure 1, and Figure 3 is an embodiment of this invention. Figure 4 is a cross-sectional view of a conventional ceiling-mounted air conditioner, and Figure 5 is an enlarged view of the area near the air outlet in Figure 4. FIG. In the figure, +11 is the ceiling, (2) is the main body, (4) is the inlet, (6) is the blower, (7) is the heat exchanger, (8) is the air outlet, (9) is the outlet, ( 12a) (12b) is the guide wall, (13a) (13b) is the blowing part, Q41 is the shaft,
09 is a louver. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (3)

[Claims] (1) The vicinity of the outlet of the outlet of the outlet which guides the air from the heat exchanger to the outlet provided on the lower surface of the main body, which is equipped with a heat exchanger, a control unit, and a suction unit and is installed in the ceiling. In a ceiling-embedded air conditioner having a louver, the vicinity of the outlet of the outlet air passage is constructed using at least two opposing guide walls, and in the vicinity of the outlet, one guide wall faces toward the outlet. is almost a straight line, and the other guide wall has a gradually contracting structure, and by rotating the louver with a rotation axis in the horizontal direction, the tip of the louver can reach the almost straight guide wall surface. A ceiling-mounted air conditioner characterized by: (2) The ceiling embedding according to claim 1 of the utility model registration claim, characterized in that the guide wall having a structure that gradually reduces toward the air outlet has an arc-shaped cross section on the air outlet side. Shape air conditioner. (3) A ceiling-embedded air conditioner as set forth in item 1 of the utility model registration claim, wherein the louver has an airfoil shape.