JPH0771812A - Air-conditioner - Google Patents

Abstract

PURPOSE:To prevent an air flow from giving a user an unpleasant feeling by keeping the air flow path resistance low and preventing the air speed from becoming higher than necessary in the case the air flow is deflected downward. CONSTITUTION:A vertically-swingable blade 21 is installed at a position corresponding to an entrance 10 in a flow path 6, and a vertically swingable air deflector 23 is installed at a position corresponding to an exit 11 in the flow path 6 and nearer protrusion 8 than the blade 21 so that it connects with the to a blade 21 when the air is blown horizontally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to a blowout flow control of a blowout portion at the time of downward blowing.

[0002]

2. Description of the Related Art In recent years, efforts have been made to improve the comfort of the indoor environment of an air conditioner by efficiently controlling the blowout flow.

As a conventional air conditioner for efficiently controlling the blowout flow, there is one disclosed in Japanese Patent Publication No. 62-42161.

The conventional air conditioner will be described below with reference to the drawings. In FIGS. 3 to 5, 1
Is an air conditioner, and is provided with a blower 2, a heat exchanger 3, and a heater 4 in an internal air passage.

Reference numeral 5 denotes a conditioned air blowing portion, and the top plate 7 forming the flow path 6 has a shape having a downwardly bent projecting portion 8 on the most downstream side. A heat insulating material 9 is attached to the inner surface of the top plate 7.

In addition, the lower side surface of the blow-out portion 5 forming the flow path 6 has an inlet portion 10 having a substantially arcuate cross section such that the width of the flow passage is gradually reduced in the longitudinal section along the flow path, and the upstream end is the inlet. Part 10
A vertical cross section that is downwardly shifted from the downstream side end and that is connected to the inlet portion 10 and that follows the flow passage is formed by an outlet portion 11 having a substantially arcuate cross section such that the width of the flow passage gradually increases.

Reference numeral 12 denotes a blade provided in the vicinity of the inlet portion 10, which is provided so as to be vertically rotatable about an axis 13 which is perpendicular to the plane of the drawing, and is air-moved at an arbitrary rotating position. It can be fixed so that it does not move at the wind pressure of the flow. The blade 12 forms a nozzle a together with the inlet portion 10 and is arranged at a position where the flow from the nozzle a can be attached to the outlet portion 11 by the fluid attachment effect. Reference numeral 14 is an inlet for indoor air.

The operation of the air conditioner configured as described above will be described below. In FIG. 3, when the blower 2 is operated, indoor air is blown from the suction port 14 to the blower 2,
After passing through the heat exchanger 3 and the heater 4 to be harmonized, they are blown out into the room through the flow path 6 of the blowout part 5.

The deflection operation in the flow direction of the blow-out portion 5 will be described with reference to FIGS. 4 and 5. First, a case where the flow is largely deflected downward will be described with reference to FIG.
In this case, the blade 12 is fixed at an inclined position so that the flow passing through the blade 12 is deflected downward.

The flow passing through the portion formed between the blade 12 and the inlet portion 10 is directed downward due to the inclination of the blade 12, and further adheres to the outlet portion 11 with a fluid adhesion effect to sufficiently Is deflected toward the direction of arrow A.

On the other hand, the flow on the upper side of the blades 12 is
To direct downwards. This flow is attracted to each other with the flow A, and is finally directed in the direction of the arrow B along the arrow A.

As a result of the above, the flow passing through the flow path 6 merges the flows indicated by the arrows A and B and is deflected downward as a whole.

Next, the case where the flow is directed in the horizontal direction will be described with reference to FIG. In this case, the blades 12 are fixed at an inclination angle so as to face upward on the downstream side of the flow.

The upward flow of the blades 12 is directed downward by the protrusions 8, but the portions along the blades are directed upwards, so that they flow in the horizontal direction B as a whole. On the other hand, the flow passing through the portion formed between the blade 12 and the inlet portion 10 is directed by the inlet portion 10 and is directed upward because the inlet portion 10 is formed so as to gradually reduce the channel width. The flow becomes a heading flow, and becomes a flow A due to a mutual suction action between the flow and the flow B.

As described above, the flow passing through the flow path 6 is a flow in which the flows indicated by the arrows A and B merge, and the flow flows in the horizontal direction as a whole.

[0016]

However, in the conventional air conditioner, since the number of the blades 12 is one, it is necessary to increase the blade width to some extent in order to deflect the blades downward and to increase the downward angle of the blades 12 to some extent. Therefore, the flow path resistance increases. In addition, the flow velocity of the blowout flow from the nozzle a narrowed by the blades 12 is high, and an uncomfortable feeling due to the airflow occurs in the room.

SUMMARY OF THE INVENTION The present invention solves the conventional problems and provides an air conditioner capable of reducing the flow path resistance and deflecting the blowing wind speed downward without increasing it more than necessary. To aim.

[0018]

In order to achieve this object, the air conditioner of the present invention has a single vertically movable vane disposed in a portion of the flow passage corresponding to the inlet. At the portion corresponding to the outlet portion in the flow passage, a single wind direction deflecting plate which is rotatable in the up-down direction is arranged on the projecting portion side of the blade so as to be continuous with the blade at the time of horizontal blowing. .

[0019]

In the air conditioner of the present invention, when deflected downward, the lower side of the blade causes the fluid to adhere to the outlet portion of the blade and directs it downward, and the upper side of the blade flows by the wind direction deflecting plate and the protruding portion. Is directed downward, the flow path resistance is small, and the blowing wind speed does not rise more than necessary. Further, in the case of blowing out in the horizontal direction, the wind direction deflecting plate and the blades are fixed at the same angle slightly upward on the downstream side of the flow, and are formed as if they were a single wind direction changing plate. It becomes a speech bubble.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are vertical sectional views of the essential parts of an air conditioner according to an embodiment of the present invention. The same components as those in the conventional example are designated by the same reference numerals and detailed description thereof will be omitted.

In FIGS. 1 and 2, reference numeral 21 is a blade provided in the vicinity of the inlet portion 10, and an axis 22 perpendicular to the plane of the drawing.
23 is a wind direction deflecting plate that is provided so as to be rotatable in the vertical direction about the center of the drawing, and is provided in the vicinity of the outlet portion 11 on the side of the projecting portion 8; Are rotatably provided, and both can be fixed so as not to move at an arbitrary turning position by the wind pressure of the air flow.

The blade 21 together with the inlet portion 10 has a nozzle a.
Is formed, and the flow from the nozzle a is arranged at a position where it can be attached to the outlet portion 11 by the fluid attachment effect. Further, when the blades 21 are fixed at an inclination angle such that the blades 21 face upward on the downstream side of the flow, the wind direction changing plate 23 also has the same inclination angle, and the wind upper end is in contact with the wind lower end of the blades 21. It is arranged in such a position as to form one wind direction changing plate (see FIG. 2).

The operation of the air conditioner configured as above will be described below. The deflection operation in the flow direction in the blowout section 5 will be described with reference to FIGS. 1 and 2.

First, a case where the flow is largely deflected downward will be described with reference to FIG. In this case, the blade 21
The blade 21 and the wind direction deflecting plate 23 are fixed at an inclined position so that the flow passing through the wind direction deflecting plate 23 is deflected downward.

The flow passing through the portion formed between the blade 21 and the inlet portion 10 is directed downward due to the inclination of the blade 21, and further adheres to the outlet portion 11 with a fluid adhesion effect to sufficiently Is deflected toward the direction of arrow A.

On the other hand, the flow on the upper side of the blade 21 is directed downward by the wind direction deflecting plate 23, and the flow on the upper side of the wind direction deflecting plate 23 is directed downward by the protrusion 8. The flow by the wind direction deflecting plate 23 and the flow A by the projecting portion 8 and the flow by the wind direction deflecting plate 23 have a mutual suction action, and finally an arrow A It is directed along arrow B and arrow C.

As described above, the flow passing through the flow path 6 is such that the flows of the arrows A, B, and C merge, and the flow is deflected sufficiently downward as a whole.

Next, referring to FIG. 2, the case where the flow is directed in the horizontal direction will be described. In this case, both the blades 21 and the wind direction deflecting plate 23 are fixed on the downstream side of the flow at an inclination angle so as to face the upper side, and are formed as if they were one wind direction changing plate.

The flow on the upper side of the blade 21 and the wind direction deflecting plate 23 is directed downward by the protrusion 8, but the blade 2
1 and the portion along the wind direction deflecting plate 23 are directed upward, so that they are directed in the horizontal direction B as a whole. On the other hand, blade 2
The flow passing through the portion formed between 1 and the inlet portion 10 is directed by the inlet portion 10 and becomes an upward flow, and becomes the flow A by the mutual suction action with the flow B.

As described above, in the air conditioner of the present embodiment, a single vertically movable blade 21 is arranged at the portion corresponding to the inlet portion 10 in the flow path 6, and the flow path 6 At the portion corresponding to the outlet portion 11 in the inside, the blades 21
Since one wind direction deflecting plate 23 that is rotatable in the vertical direction is arranged on the side of the protruding portion 8 with respect to the blades 21 so as to be continuous with, the flow path resistance in the case of deflecting the wind direction downward is small, and the blowing wind speed is small. Does not become unnecessarily large, and there is no discomfort due to the feeling of air flow.

[0032]

As described above, in the air conditioner of the present invention, one vertically movable blade is arranged at the portion corresponding to the inlet in the flow passage, and the blade in the flow passage is provided. In the portion corresponding to the outlet, a single wind direction deflectable plate which is rotatable in the up-down direction is arranged on the projecting side of the blade so as to be continuous with the blade when it is blown out in the horizontal direction. In this case, the flow path resistance is small, the blowing wind speed does not become unnecessarily high, and there is no discomfort due to the feeling of air flow.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of a first embodiment of an air conditioner according to the present invention, showing a case of downward blowing.

FIG. 2 is a vertical cross-sectional view of a main part of the air conditioner of the same embodiment showing a horizontal blow-out time.

FIG. 3 is a vertical sectional view of a conventional air conditioner.

FIG. 4 is a longitudinal cross-sectional view of a main part of a conventional air conditioner showing a downward blow-off.

FIG. 5 is a vertical cross-sectional view of a main part of a conventional air conditioner showing horizontal blowing

[Explanation of sign]

 5 Blow-out part 6 Flow path 8 Projection part 10 Inlet part 11 Outlet part 21 Blade 23 Wind direction deflection plate

Claims (1)

[Claims] 1. A substantially arcuate inlet section having a longitudinal cross section along the channel where the channel width is gradually reduced, and an upstream end is a downstream end of the inlet section, below the channel in the blowing section. A vertical cross section along the flow path that is shifted downward and is connected to the inlet section forms an outlet section with a substantially arcuate cross section such that the channel width gradually expands, and at the outlet end on the upper side of the channel in the blowout section. A protrusion is formed to deflect a part of the flow inward of the flow, and the outlet is located upstream of the protrusion to form a single outlet with the protrusion, and In the portion corresponding to the inlet portion, a single vertically rotatable blade is arranged, and in the portion corresponding to the outlet portion in the flow path, the blade is continuous with the blade at the time of horizontal blowing. Air in which a single wind direction deflecting plate that is rotatable in the up-and-down direction is arranged on the side of the protrusion from the blade Harmony device.