JP2517545Y2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an air conditioner.

(Prior Art) Conventionally, in a wall-mounted air conditioner mounted on an indoor wall surface, an air outlet is opened on a lower surface of a main body casing, and conditioned air is blown downward from the air outlet. Some are known (see, for example, Japanese Utility Model Laid-Open No. 61-110891).

(Problems to be solved by the invention) By the way, in the wall-mounted air conditioner in which the air outlet is provided on the lower surface of the main body casing to blow out the conditioned air downward, the blowing direction of the conditioned air is changed to the room. It is important to be able to adjust to a wider angle toward the inside to create a comfortable air-conditioned space, but in the conventional ones, such points are not sufficiently taken into consideration, and the wind direction guide is simply provided inside the air outlet. There is room for improvement in the pursuit of comfort only by providing the blades.

Therefore, the present invention is an air conditioner in which an air outlet is provided on the lower surface of a main body casing, and has a simple structure and simple control so that the blowing direction of the conditioned air from the air outlet is widened toward the indoor side. By making it adjustable, a more comfortable air-conditioned space was obtained.

(Means for Solving the Problem) In the present invention, as a concrete means for solving the problem, as shown in FIG. 1, an air inlet 2 is provided on the upper surface 1a and an air blower is provided on the lower surface 1b. The heat exchanger 4 and the cross flow fan 5 are provided in the main body casing 1 which has the outlets 3 and whose front surface 1c is a smooth surface and is attached to the indoor wall surface 15 with the front surface 1c facing the indoor side. , The heat exchanger 4 is arranged on the side of the air inlet 2 and the crossflow fan 5 is arranged on the side of the air outlet 3 respectively, while the air outlet 3 is formed on the indoor wall surface. An outlet rear wall 32 formed of a flat surface located closer to 15 and inclined toward the inside toward the lower side, and a surface located closer to the inside of the room toward the lower surface 1b of the main casing from the cross flow fan 5 side. Glide indoors With the outlet front wall 31 and the air flow guide surface 33 for crab curvature are opposed with a predetermined interval, the outlet rear wall
On the 32 side, one end on the upstream side in the air flow blowing direction is formed on the back wall of the air outlet.
The damper member 6, which is pivotally supported on 32 and is capable of swinging the other end on the downstream side in the air flow blowing direction toward and away from the blower outlet rear wall 32 and whose tilt angle is controllable, In the first swinging position closest to the blower outlet rear wall 32, the lower end of the damper member 6 is located at substantially the same height as the lower end of the blower outlet rear wall 32, and is separated from the blower outlet rear wall 32. And the lower end of the damper member 6 is located at substantially the same height as the upper end of the airflow guide surface 33 at the second swing position closest to the outlet front wall 31 side. It has a feature.

(Operation) In the present invention, the air is taken in from the air intake port 2 provided on the upper surface 1a of the main body casing 1 by the cross flow fan 5, and then the heat is exchanged by the heat exchanger 4, and the lower surface 1b of the main body casing 1 is provided. The conditioned air A blown out into the room from the air outlet 3 is adjusted to a wider angle by the deflecting action of the damper member 6 provided on the air outlet 3 side and the Coanda effect of the airflow guide surface 33. It

That is, the damper member 6 is pivotally supported on the outlet rear wall 32 so that the damper member 6 can be swung in the direction toward and away from the outlet front wall 31, and its inclination angle can be controlled. In the first swing position closest to the rear wall 32, the lower end of the damper member 6 is located at substantially the same height as the lower end of the outlet rear wall 32, and is separated from the outlet rear wall 32. Since the lower end of the damper member 6 is located at substantially the same height as the upper end portion of the airflow guide surface 33 at the second swing position closest to the outlet rear wall 31 side, In the state where the swinging position of the damper member 6 is set to the first swinging position and the damper member 6 is closest to the air outlet rear wall 32 side, the damper member 6 side of the conditioned air A is shifted toward the damper member 6 side. The conditioned air A flowing through the part flows along the surface of the damper member 6. Then, the air is blown out immediately below the air outlet 3. On the other hand, of the air conditioning air A,
Although the conditioned air A flowing near the outlet front wall 31 tends to be deflected closer to the room than directly below the air outlet 3 due to the Coanda effect of the airflow guide surface 33 of the outlet front wall 31. In this case, since the damper member 6 is set to the first swing position, the opening area of the air outlet 3 is large, and the conditioned air A on the damper member 6 side is the air outlet 3 From the air-conditioning air A flowing from the outlet front face wall 31 toward the lower portion of the outlet front face wall 31.
Since there is almost no pressing force to the 31 side, the deflecting effect of the conditioned air A due to the Coanda effect is small. As a result, the conditioned air A blown out from the air outlet 3
When viewed as a whole, a direction close to a position directly below the air outlet 3 (in other words, a direction substantially parallel to the indoor wall surface 15) without being significantly affected by the Coanda effect by the airflow guide surface 33. ) Will be blown out.

On the other hand, when the damper member 6 is set to the second swing position and the damper member 6 is closest to the outlet front wall 31, the damper member 6 and the outlet front wall 31 are separated from each other. As a result, the passage area of the air outlet 3 is narrowed and the position of the effective opening is deviated to the airflow guide surface 33 side. The air A flows along the airflow guide surface 33 as it is, and the conditioned air A flowing near the air outlet rear wall 32 is also largely deflected toward the air outlet front wall 31 by the deflecting action of the damper member 6. The air-conditioning air A will be pressed toward the 33 side, and will flow intensively near the airflow guide surface 33. Moreover, in this case, since the lower end of the damper member 6 is located at substantially the same height as the upper end of the airflow guide surface 33, the entire area of the airflow guide surface 33 can effectively contribute to the occurrence of the Coanda effect. It is in a state. Therefore, the Coanda effect of the airflow guide surface 33 more effectively acts on the air-conditioning air A that flows intensively near the airflow guide surface 33 while being pressed against the airflow guide surface 33 side. A will positively flow along the airflow guide surface 33, and when the conditioned air A is viewed as a whole, its blowing direction is largely deflected toward the indoor side.

Thus, in this air conditioner, the blowing direction of the conditioned air A from the air outlet 3 can be adjusted to a wider angle only by adjusting the inclination angle of the damper member 6.

Further, in this case, the damper member 6 is swung to continuously change and control the deflection direction of the conditioned air A by the damper member 6 to give a feeling of fluctuation to the conditioned air A blown out from the air outlet 3. be able to.

(Effect of the Invention) Therefore, in the air conditioner of the present invention, one end of the air outlet 3 upstream of the air outlet direction is pivotally supported on the air outlet rear wall 32 side. Provided is a damper member 6 whose other end on the downstream side in the air flow blowing direction can be swung in a direction coming in contact with and separated from the air outlet rear wall 32 and whose inclination angle can be controlled, and a mounting position of the damper member 6. To
In the first swinging position where the damper member 6 is closest to the outlet rear wall 32, the lower end of the damper member 6 is located at substantially the same height as the lower end of the outlet rear wall 32, and the damper member In the second swing position where 6 is separated from the outlet rear wall 32 and is closest to the outlet front wall 31 side, the lower end of the damper member 6 is substantially level with the upper end of the airflow guide surface 33. By setting it so that it is located at the position, the deflection effect of the damper member 6 allows the Coanda effect in the airflow guide surface 33 to more effectively act, and the blowing direction of the conditioned air A can be controlled to a wider angle, and the damper Since the member 6 can give a feeling of fluctuation to the conditioned air A, there is an effect that a more comfortable conditioned space can be created even though the air conditioner is of the downward blowing type.

Further, in the air conditioner of the present invention, it is possible to perform wide-angle adjustment of the conditioned air A in the blowing direction and to give a feeling of fluctuation to the conditioned air A only by controlling the damper member 6. There is also an effect that the control becomes extremely simple and easy due to the small number.

Further, since the damper member 6 is provided not on the center of the air outlet 3 but on the outlet rear surface wall 32 which is one side wall of the air outlet 3, the damper member 6 is provided.
The entire amount of the conditioned air A flowing on the side is subjected to the same deflecting action. For example, the damper member 6 is arranged near the center of the air outlet 3 to the conditioned air A flowing on both sides of the damper member 6. Compared with the case where the deflection action is different, the deflection action on the conditioned air A is more accurate, and the wide-angle control in the blowing direction of the conditioned air A is more reliable.

(Example) Hereinafter, the air conditioner of this invention is demonstrated based on an Example.

FIG. 1 shows a wall-mounted air conditioner (indoor unit) Z according to an embodiment of the present invention.
Is a main body casing fixedly arranged on the indoor wall surface 15.
The main body casing 1 has an air intake port 2 on its upper surface 1a.
The air outlets 3 are formed on the lower surface 1b, and the front surface 1c is formed into a smooth flat surface. Further, in the main body casing 1, a heat exchanger 4 is inclinedly arranged at an upper position thereof so as to face the air intake port 2, and a cross flow fan 5 is provided at a lower position of the air blower port 3. It is installed facing the. A front fan casing 8 and a rear fan casing 9 are provided on the front and rear sides of the cross flow fan 5, respectively.

The front side fan casing 8 is located below the front surface 1c of the main body casing 1, is separated from the crossflow fan 5 and faces the fan guide surface 10, and extends downward continuously from the fan guide surface 10. And an outlet front wall 31 reaching the air outlet 3. The surface shape of the air outlet front wall 31 is the indoor side (that is, the front surface 1c side of the body casing 1) as it goes from the fan guide surface 10 toward the air outlet 3 side (that is, the lower surface 1b side of the body casing 1). )
The airflow guide surface 33 is configured to smoothly curve and change.

On the other hand, the rear side fan casing 9 is located below the rear surface 1d of the main body casing 1, and has an arc-shaped fan guide surface 11 facing the cross flow fan 5 at a distance.
The fan guide surface 11 has a blower outlet rear wall 32 which is formed of a flat surface which is continuous with the lower end of the fan guide surface 11 and extends obliquely to the front side. The damper member 6 described below is attached to the upper end portion of the outlet rear wall 32.

The damper member 6 has its one end on the upstream side in the blowing direction pivotally supported on the blower outlet rear wall 32 by the rotating member 12, and the other end on the downstream side in the blowing direction with respect to the blower outlet front wall 31. It is possible to swing in the direction of contact and separation. In this case, the arrangement position of the damper member 6 in the vertical direction with respect to the air outlet 3 is set as follows. That is, as shown in FIG. 2, in the “first swing position” in which the damper member 6 is closest to the outlet rear wall 32, the lower end of the damper member 6 is substantially the same as the lower end of the outlet rear wall 32. The damper member 6 is located at the same height, and as shown in FIG. 4, the damper member 6 is separated from the air outlet rear wall 32 and the air outlet front wall.
In the "second swing position" closest to the 31st side, the lower end of the damper member 6 is set to be substantially level with the upper end of the airflow guide surface 33.

Further, the damper member 6 is swung by turning the turning member 12 by the drive motor 7, and is arbitrarily moved between the "first swing position" and the "second swing position". It can be adjusted.

On the other hand, the operation control of the damper member 6, that is, the drive control of the drive motor 7 is performed as follows according to the indoor situation. That is, the wind speed sensor 51 and the temperature sensor 52 arranged in the indoor living space detect the current wind speed and temperature (room temperature) of the conditioned air in the living space. And
The output value of the wind speed and the output value of the temperature are input to the wind speed value calculation circuit 53 and the temperature calculation circuit 54, respectively, and subjected to signal processing, and then input to the set value / output value comparison calculation circuit 55.

Further, in the set value / output value comparison calculation circuit 55, the set values of the wind speed and the temperature set in advance so as to create the optimum air-conditioned space during the heating and the cooling are compared with the output values of the wind speed and the temperature. . Then, the motor drive circuit 56 calculates the drive amount of the drive motor 7 (that is, the swing amount of the damper member 6) necessary to create the optimum air-conditioned space based on the deviation between the two, and the motor drive circuit 57
A motor drive signal is output to drive the drive motor 7 by a required amount.

Next, the operation control of the air conditioner Z including the operation control of the damper member 6 will be described with reference to FIGS. 2 to 4.

During heating operation During heating operation, the above set value / output value comparison calculation circuit 55
As the set value of wind speed and temperature, for example, set wind speed 0.5 m /
s and set temperature of 20 ℃ are stored respectively.

At the start of heating, the wind speed detected by the wind speed sensor 51 is zero, and the temperature sensor 52 detects the room temperature before the start of heating, for example, 5 ° C. In response to these output values, the wind speed value calculation circuit 55 compares these with each of the above-mentioned set values, calculates the drive amount of the drive motor 7 and drives the drive motor 7, thereby causing the damper member 6 to move. Set to a predetermined rotation position.

Specifically, as shown in FIG. 2, the damper member 6 is brought into contact with the outlet rear wall 32, that is, the “first swing position”.
The air outlet 3 to full open, and the airflow guide surface 34
The surface direction of is inclined slightly forward of the vertical direction.

When the damper member 6 is set to the "first swing position" in this manner, the warm air from the cross flow fan 5 is guided by the airflow guide surface 34 of the damper member 6 and is blown out substantially right below and in a large amount. Therefore, the temperature of the room rises quickly, and the heating rises well.

Further, in this case, since the passage area of the air outlet 3 is large and the hot air is directed almost directly below, the Coanda effect on the airflow guide surface 33 of the outlet front wall 31 is small,
When viewed as a whole, the hot air is blown out almost directly below as shown by an arrow A in FIG. 2 in spite of the Coanda effect.

On the other hand, when the wind speed increases due to the progress of heating and becomes higher than the set value, from the viewpoint of reducing the draft feeling of the occupants due to the blowing of warm air with a high wind speed into the living area, As shown by the solid line in the figure, the damper member 6 is moved to a "second swing position" where the inclination angle is shallow.
The hot air is blown toward the front side as indicated by arrow A, and the room temperature is raised to the set temperature in this state.

In this case, the hot air from the cross flow fan 5 is deflected by the air flow guide surface 34 of the damper member 6 toward the air flow guide surface 33 side of the outlet front wall 31, and the air flow guide surface 33
The effective opening of the air outlet is offset to the side of the outlet front wall 31, and the lower end of the damper member 6 is near and closest to the upper end of the airflow guide surface 33. The Coanda effect between 31 and the airflow guide surface 33 is effective against the total amount of warm air, and the warm air blows in a nearly horizontal blowing direction due to the synergistic effect of the deflection effect of the damper member 6 and the deflection effect of the Coanda effect. Is blown out toward the inside of the room.

After the room temperature reaches the set temperature, the detected value and the set value of the wind speed and the room temperature (when the temperature rises sufficiently, decrease the set value of the wind speed, for example, set the wind speed to 0.2 m / s). Finely adjust the angle of the damper member 6 while constantly comparing,
Adjust the blowing direction of warm air. Also in this case,
A comfortable heating state can be achieved by swinging the damper member 6 as appropriate to give fluctuations to the warm air.

As described above, in this air conditioner Z, the blowing direction of the warm air is adjusted to a wide angle between the direction indicated by the arrow A and the direction indicated by the arrow A ′ in FIG. 3 only by adjusting the angle of the damper member 6. Therefore, a more comfortable air-conditioned space can be easily created.

During cooling operation During cooling operation, it is necessary to blow out cool air horizontally as forward as possible so that uniform cooling can be performed. Therefore, during the cooling operation, as shown in FIG. 4, the angle of the damper member 6 is made shallow to set it to the “second swing position”, and the Coanda effect by the airflow guide surface 33 of the outlet front wall 31 is maximized. The cold air is blown out substantially horizontally along the airflow guide surface 33 by making the best use of it.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part of an air conditioner according to an embodiment of the present invention, and FIGS. 2 to 4 are explanatory views of the state change thereof. 1 …… Main body casing 2 …… Air inlet 3 …… Air outlet 4 …… Heat exchanger 5 …… Cross flow fan 6 …… Damper member 7 …… Drive motor 8 …… Front side fan casing 9 …… Rear Side fan casing 10 …… Fan guide surface 11 …… Fun guide surface 12 …… Rotating member 15 …… Indoor wall surface 31 …… Outlet front wall 32 …… Outlet rear wall 33 …… Air flow guide surface 34 …… Air flow Guide

Claims (1)

(57) [Scope of utility model registration request] 1. An air inlet (2) is provided on the upper surface (1a), and an air outlet (3) is provided on the lower surface (1b).
A heat exchanger (4) and a cross flow fan are provided in a main body casing (1) attached to the indoor wall surface (15) with the front surface (1c) being a smooth surface and the front surface (1c) facing the indoor side. (5) is arranged with the heat exchanger (4) on the side of the air inlet (2) and the crossflow fan (5) on the side of the air outlet (3). On the other hand, in the air outlet (3), there is an air outlet rear wall (32) which is located near the indoor wall surface (15) and is formed by a plane inclined downward toward the room, and an air outlet rear wall (32) which is located indoors. Further, the front surface of the outlet (31) is an airflow guide surface (33) which is smoothly curved inward toward the indoor side from the side of the cross flow fan (5) toward the lower surface (1b) of the main body casing, with a predetermined interval. They are arranged opposite to each other and are on the side of the outlet wall rear wall (32) Has one end on the upstream side in the air flow outlet direction pivotally supported on the outlet back wall (32) and swings the other end on the downstream side in the air flow outlet direction toward and away from the outlet rear wall (32). The damper member (6) which is movable and whose tilt angle is controllable is
In the first swing position closest to 2), the lower end of the damper member (6) is located at substantially the same height as the lower end of the outlet rear wall (32), and the outlet rear wall (32). In the second swing position that is closest to the outlet front wall (31) side away from the lower end of the damper member (6), the lower end of the damper member (6) is at substantially the same height as the upper end of the air flow guide surface (33). An air conditioner characterized by being arranged so as to be positioned.