JP3438323B2 - Ceiling embedded air conditioner and horizontal blade structure of the device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-embedded air conditioner and a structure of horizontal blades provided at the air outlet of the ceiling-embedded air conditioner and capable of freely changing the blowing direction of conditioned air. In particular, the present invention relates to a measure for preventing the ceiling surface from being contaminated due to adhesion of fine particle dust contained in conditioned air.

[0002]

2. Description of the Related Art Conventionally, a horizontal blade is provided at the outlet of a ceiling-embedded air conditioner so that the vertical direction of the conditioned air can be changed. Then, the direction of the conditioned air blown by the horizontal blades is set slightly downward during the heating operation, while it is made substantially parallel to the ceiling surface (so-called horizontal blowout) during the cooling operation, and the indoor temperature distribution is made uniform in each operating state. To improve air conditioning efficiency.

However, when such horizontal blowing is performed, fine particles of dust contained in the blown air may adhere to the ceiling surface and the ceiling surface may be partially soiled.
The state of occurrence of this stain will be described with reference to FIGS. 11 and 12. Note that FIG. 11 is a view of the air conditioner viewed from the horizontal direction, and FIG. 12 is a view of the air conditioner viewed from below. The airflow in the horizontal blowing is substantially V-shaped as shown by the phantom line in FIG. That is, in the central portion of the air outlet (a), the airflow is in a region away from the ceiling surface (b) because the initial velocity of air blowing is high. In addition, since the fine particle dust contained in the air blown through this area has a high inertial force, this dust is generated on the ceiling surface (b).
It hardly adheres to.

On the other hand, on both sides of the outlet, since the initial velocity of the air is low, the air flow approaches the ceiling surface (b) by the Coanda effect and flows substantially along the ceiling surface (b). Further, since the fine particle dust contained in the air blown through this region has a low inertial force, when this dust comes into contact with the ceiling surface, it becomes easy to adhere to the ceiling surface (b). There is. Therefore, as shown in FIG.
In a portion close to both sides of the outlet (a) such as a region A indicated by a phantom line, fine particles of dust contained in the blown air flowing along the ceiling surface are attached to cause contamination.

In order to avoid this stain, Japanese Patent Laid-Open No. 3-1
As disclosed in Japanese Patent No. 60266, the horizontal blades are detachably provided with auxiliary fins for shifting the blowing direction to the ceiling surface side, and the auxiliary fins are attached and detached depending on the ease with which the ceiling dirt is generated. Is proposed. In other words, the situation where the ceiling is likely to be dirty (the situation where the indoor air is dirty)
Then remove the auxiliary fins and make the horizontal blades face downward,
When the ceiling is unlikely to get dirty (the room air is clean), auxiliary fins are attached to enable horizontal blowing.

[0006]

However, in the case where such an auxiliary fin is provided, in a situation where the ceiling is likely to be soiled, all the conditioned air blown out from the outlet by removing the auxiliary fin. Therefore, it is not possible to meet the request, especially during the cooling operation in which horizontal blowing is required. In other words, not only the air conditioning efficiency of the cooling operation is reduced, but also the cold air is blown directly to the person in the room, which causes an uncomfortable feeling.

The present invention has been made in view of this point, and by improving the shape of the horizontal blades, it is possible to avoid the occurrence of dirt on the ceiling surface while obtaining the blowing direction according to the operating state of the air conditioner. The purpose is to do.

[0008]

In order to achieve the above object, the present invention focuses on the fact that the area where the ceiling dirt actually occurs is a portion close to both sides of the outlet, and Only the blowing direction of air, which is involved in the generation of dirt, was changed to downward.

Specifically, the invention according to claim 1 is provided with a blowout port (9b) which is embedded in the ceiling surface (R) and blows the conditioned air toward the indoor space, and the blowout port (9b). In addition, it is premised on a ceiling-embedded air conditioner provided with horizontal blades (14) extending in the horizontal direction that can freely change the vertical direction of blowout of conditioned air. Then, at both ends (14b, 14b) in the horizontal direction of the horizontal blade (14), among the conditioned air blown out from the air outlet (9b) , a horizontal center portion (14) of the horizontal blade (14).
The horizontal blade (1
4) of the conditioned air flowing through both ends (14b, 14b) in the horizontal direction
The guide means (20) for changing the blowing direction downward is provided.

The invention according to claim 2 is embedded in the ceiling surface (R).
Blow-out port (9
b) and the outlet (9b) is used to blow conditioned air.
Horizontal wings that extend in the horizontal direction and can be changed vertically
Assuming a ceiling-embedded air conditioner with roots (14)
There is. Then, both ends in the horizontal direction of the horizontal blade (14)
(14b, 14b) has air-conditioned air blown from the outlet (9b)
Set the direction of air flow to the horizontal center of the horizontal blade (14).
Guide the conditioned air flowing through (14a) to the lower side than the blowing direction
A guide means (20) is provided. Furthermore, the guide means (20), the horizontal opposite ends of the horizontal vane (14) (14b, 14
The structure is formed by at least one through hole (14e) penetratingly formed in the thickness direction of b).

The invention according to claim 3 is embedded in the ceiling surface (R).
Blow-out port (9
b) and the outlet (9b) is used to blow conditioned air.
Horizontal wings that extend in the horizontal direction and can be changed vertically
It is premised on a ceiling-embedded air conditioner equipped with roots (14) . Then, the air-conditioned space blown out from the air outlet (9b)
Of concern, than delivery direction of the conditioned air blown out from the longitudinal center of the outlet (9b), longitudinal air outlet (9b)
Air-conditioning air blown out from both ends is directed downward
It has a means to change .

According to a fourth aspect of the invention, the air outlet (9) is embedded in the ceiling surface (R) and blows conditioned air toward the indoor space.
It is premised on a ceiling-embedded air conditioner that is provided with b) and has horizontal blades (14) extending in the horizontal direction at the air outlet (9b) so that the vertical direction of the conditioned air can be changed. Then, the air-conditioned space blown out from the air outlet (9b)
Of the air, the horizontal central portion (14
than blowing direction of the conditioned air flowing through a), the horizontal vane (1
It is equipped with means for changing the blowing direction of the conditioned air flowing through both ends (14b, 14b ) in the horizontal direction of 4) to the downward direction.

According to a fifth aspect of the invention, the outlet (9) is embedded in the ceiling surface (R) and blows the conditioned air toward the indoor space.
It is premised on a ceiling-embedded air conditioner that is provided with b) and has horizontal blades (14) extending in the horizontal direction at the air outlet (9b) so that the vertical direction of the conditioned air can be changed. The horizontal blade (14) has a fin center portion (14a) at the center in the longitudinal direction and the fin center portion (14a).
It is composed of fin side parts (14b, 14b) on both sides of. Further , the width of the fin side portions (14b, 14b) is shorter than the width of the fin center portion (14a).

According to a sixth aspect of the invention, the outlet (9) is embedded in the ceiling surface (R) and blows the conditioned air toward the indoor space.
It is premised on a ceiling-embedded air conditioner that is provided with b) and has horizontal blades (14) extending in the horizontal direction at the air outlet (9b) so that the vertical direction of the conditioned air can be changed. The horizontal blade (14) has a fin center portion (14a) at the center in the longitudinal direction and the fin center portion (14a).
a) with fin side parts (14b, 14b) on both sides.
Further, in the horizontal blade (14), the edge portion (14c) of the portion located on the inner side of the air outlet (9b) is in a straight line shape, and the air outlet (9
The fin center portion (14a) of the edge portion (14d) of the portion located on the outlet side of b) has a shape protruding to the front side.

The invention according to claim 7 is the same as claim 5 or
In the ceiling embedded air conditioner described in 6 , the length of the fin side portions (14b, 14b) is smaller than 25% of the length of the entire horizontal blade (14).

[0016]

With the above construction, the present invention provides the following actions. In the invention of claim 1, in particular,
When the horizontal blade (14) is set to the horizontal outlet state and the conditioned air is blown from the outlet (9b) toward the room, a good horizontal outlet is provided at the center of the outlet where the outlet initial speed is relatively high. Although it is in the state, the guide means (20) is provided on both sides in the horizontal direction of the outlet where the outlet initial velocity is relatively low.
Thus, the blowing direction of the conditioned air is guided downward. Therefore, as in the conventional case, the conditioned air having a low initial blowing velocity flows along the ceiling surface (R), so that the fine particle dust contained in the conditioned air adheres to the ceiling surface (R). It prevents the ceiling surface (R) from becoming dirty.

In the invention according to claim 2 , the horizontal blade (14)
Most of the conditioned air guided by the both ends (14b, 14b) in the horizontal direction of the vehicle passes through the through holes (14e, 14e, ...) Formed in the both ends (14b, 14b) and is blown downward. It Therefore, the conditioned air blown from both sides of the air outlet (9b) will not flow along the ceiling surface (R),
The dirt on the ceiling surface (R) is prevented.

In the inventions according to claims 3 to 7 , when the horizontal blades (14) are set to the horizontal blowing state and the conditioned air is blown toward the room from the blowing outlet (9b), the blowing initial speeds are compared. In the central portion of the air outlet having a relatively high temperature, a good horizontal air outlet is achieved, whereas in both sides in the horizontal direction of the air outlet having a relatively low air outlet initial speed, the air outlet direction of the conditioned air is guided downward. Particularly, in the inventions according to claims 7 to 9, the conditioned air blown out from the fin center portion (14a) is in a favorable horizontal blowout state, whereas the fin side portions (14b, 14b) on both sides are The blowing direction of the conditioned air is guided downward. Therefore, as in the conventional case, the conditioned air having a low initial blowing velocity flows along the ceiling surface (R), so that the fine particle dust contained in the conditioned air adheres to the ceiling surface (R). It prevents the ceiling surface (R) from becoming dirty.

[0019]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a sectional view of a ceiling-embedded air conditioner (1) according to this example. The air conditioner (1) is inserted and arranged in an opening (H) formed in a ceiling (R), and a casing (2) opening downward is installed in a space above the ceiling (S). The casing (2) includes a top plate (2a) and side plates (2b) extending downward from the outer edge of the top plate (2a). As shown in FIG. 4, the top plate (2a) has a substantially octagonal shape, and the side plate (2b) extends vertically downward from each side of the top plate (2a). Specifically, the top plate (2a) is an octagon in which long sides of one side are long and short sides of the short side are alternately continuous, and the side plate (2b) extending vertically downward from this long side has a relatively large area. The side plate (2b ') which is large and extends vertically downward from the short side portion is a corner side plate (2b') having a relatively small area.

As for the installation structure of this casing (2), as shown in FIG. 4, it is hung from four hanging bolts (B, B, ...) Hanging from a beam (not shown) in the space above the ceiling (S). Lowered and supported. That is, a hook member (2c) protruding outward in the horizontal direction as shown in Fig. 5 is attached to the center of the corner side plate (2b ') of the casing (2), and the hook member (2c) is attached to the center of the hook member (2c). The hanging bolt (B) is inserted into the formed long hole (2d), and the nut (N) is screwed to the lower side of the inserted portion. As a result, the hook member (2c) comes into contact with the upper surface of the nut (N), and the casing (2) is suspended and supported by the suspension bolts (B, B, ...) At four locations. Further, the height position of the casing (2) can be adjusted by adjusting the screwing position of the nut (N) with respect to the hanging bolt (B).

Further, as shown in FIG. 1, a turbo fan (3) is arranged in the center of the casing (2). This turbofan (3) has a blade (3c) held between a shroud (3a) and a hub (3b), and the center of the hub (3b) is located in the center of the casing (2). The motor (4) is directly connected to the lower end of the drive shaft, and the blade (3c) rotates when the motor (4) is driven so that the air sucked from the lower side is blown outward in the radial direction. ing. A bell mouth (5) for guiding indoor air to the turbo fan (3) is arranged below the turbo fan (3).

A heat exchanger (6) is arranged around the outside of the turbofan (3). This heat exchanger (6)
Is connected to an outdoor unit (not shown) via a refrigerant pipe, and functions as an evaporator during cooling operation and as a condenser during heating operation, and adjusts the temperature of the air drawn from the turbofan (3). .

Further, a drain pan (8) is arranged below the heat exchanger (6), and the drain hose (8a) (see FIG. 4) connected to the drain pan (8) has a corner side plate. It extends through (2b ') to the outside. In addition, a part of the drain hose (8a) has a bendable bellows shape.

A decorative panel (9) is attached to the lower end of the casing (2). This decorative panel (9)
Has an air suction port (9a) formed in the center thereof and air outlets (9b, 9b, ...) At a plurality of locations (for example, four locations) of the side edge portion. As for the structure for attaching the decorative panel (9) to the casing (2), the decorative panel (9) is attached to the hook (11) protruding outward from the vicinity of the lower end of the corner side plate (2b ') as shown in FIG. The locking tool (12) provided on the upper surface of 9) is supported by being hooked. Further, the air suction port (9a) of the decorative panel (9) is provided with an air filter (9c) for removing dust in the air sucked from the air suction port (9a).

In this way, the air flow passage (10) is formed between the air suction port (9a) and the air blowout port (9b) of the decorative panel (9), and this air flow passage (10) is formed. The air filter (9c), the bell mouth (5), the turbo fan (3), and the heat exchanger (6) are arranged in this order from upstream to downstream.

The characteristic feature of the present embodiment is that the horizontal blades (14) are provided at the air outlet (9b) and can change the vertical direction of the conditioned air. Hereinafter, the horizontal blade (14) will be described. As shown in FIGS. 2 and 3, the horizontal blade (14) is a long plate made of resin and is slightly curved in the width direction. The horizontal blade (14) has a fin center portion (14a) having a relatively long widthwise center portion (dimension t1 in FIG. 3) at the center portion in the longitudinal direction, and a relatively large amount on both sides of the fin center portion (14a). The fin side portions (14b, 14b) having a short width dimension (dimension t2 in FIG. 3) are integrally formed.

More specifically, the horizontal blades (14) are attached to the air outlet (9b), and the horizontal blade (14) is attached to the air outlet (9b).
The edge (14c) of the part located on the far side (upstream side of the conditioned air flow) is straight, while the air outlet (9c)
The edge portion (14d) of the portion located on the outlet side (downstream side of the conditioned air flow) of b) has a shape in which only the fin center portion (14a) is projected to the front side. And each part (14a, 14
As for the dimensions of b and 14b), the length of the fin center portion (14a) is about 50 with respect to the length of the entire horizontal blade (14).
%, And the width dimension (t1) is substantially equal to the width dimension of the conventional horizontal blade. On the other hand, the length dimension of the fin side portions (14b, 14b) is set to about 25% of the length dimension of the entire horizontal blade (14), and the width dimension (t2) is the same as that of the conventional horizontal blade. It is set to be slightly shorter than the width dimension of. That is, the horizontal blade (14) has a shape in which the front end edges of both ends in the longitudinal direction of the conventional horizontal blade (shown in phantom in FIG. 3) are partially cut away. Thereby, the guiding means (20) according to the present invention
Is configured.

Next, the operation of the air conditioner (1) constructed as described above will be described. The turbo fan (3) rotates as the motor (4) is driven, and the air suction port (9
The room air sucked from the a) into the casing (2) is passed through the air filter (9c), the bell mouth (5) and the turbo fan (3) to the heat exchanger (6). Then, in this heat exchanger (6), heat is exchanged with the refrigerant to adjust the temperature (cooling in cooling operation, heating in heating operation), and then from the air outlet (9b). The air is blown into the indoor space to perform air conditioning of the indoor space.

The operation characteristic of this example is as follows.
This is the operation when the conditioned air is blown from the air outlet (9b) into the indoor space. Hereinafter, this blowout operation, particularly the blowout operation during the cooling operation in which horizontal blowout is required, will be described. As shown in FIG. 6, among the conditioned air blown from the air outlet (9b), the conditioned air blown from the longitudinal center of the air outlet (9b) is the central portion of the horizontal blade (14). That is, the fin center portion (14a) is guided (see arrow B in FIG. 6). Since the conditioned air in this portion has a relatively high initial velocity, the air flow is in a region away from the ceiling surface (R) as in the conventional case as shown by the phantom line in FIG. The fine-particle dust contained in (1) hardly adheres to the ceiling surface (b) because of its high inertial force. That is, in this portion, the ceiling surface (R) is not contaminated by the fine particle dust contained in the conditioned air.

On the other hand, the conditioned air blown from both ends of the air outlet (9b) in the longitudinal direction is guided to both ends of the horizontal blade (14), that is, the fin side parts (14b, 14b). (See arrow C in FIG. 6). Since the conditioned air in this portion has a relatively low initial velocity, the air flow tends to approach the ceiling surface (R) due to the Coanda effect, and a flow substantially along the ceiling surface (R) tends to occur. ,Also,
The fine particles of dust contained in the air have a low inertial force, so when they contact the ceiling surface (R), the ceiling surface (R)
It is in a situation where it easily adheres to. However, since the fin side portions (14b, 14b) have a width dimension shorter than that of the fin center portion (14a), the lower portion of the conditioned air blowing area is open. Therefore, immediately after being blown out from the air outlet (9b), the conditioned air will change its wind direction slightly downward,
It will not flow along the ceiling surface (R) (see Fig. 7).

Therefore, as in the conventional case, the air outlet (9b)
The slow-flowing conditioned air that is blown out from both ends of the air flows along the ceiling surface (R), so that the conditioned air near the both ends of the air outlet (9b) on this ceiling surface (R) It is possible to prevent the particulate dust contained in the particles from adhering and becoming dirty. Further, the conditioned air blown out from the central portion in the longitudinal direction of the air outlet (9b), which greatly contributes to the air conditioning in the room, has a high flow velocity, and the fin center portion (14
As a result of being guided to a), most of the conditioned air blown out from the air outlet (9b) has a good horizontal blowing state. In other words, in the blowout state of the conditioned air of this example, only the air that has been conventionally involved in the generation of dirt on the ceiling surface (R) is changed to the lower side, and the other blowout states have the same blowout state as before. Will be done.

Thus, according to the configuration of this example, in particular,
During cooling operation that requires horizontal blowing of conditioned air, it is possible to secure horizontal blowing while preventing dirt on the ceiling surface (R), prevent deterioration of the appearance of the ceiling surface (R), and improve air conditioning efficiency. Both securing and securing can be achieved.

During the heating operation, the blowing direction of the conditioned air is directed downward in order to make the temperature distribution in the room uniform, so that the ceiling surface is not easily soiled. However, according to the configuration of this example, the ceiling surface (R)
It is possible to obtain a situation in which the stain does not easily occur, and it is possible to reliably avoid the occurrence of the stain.

(Modifications) Next, two modifications of the present invention will be described. This example is a modification of the horizontal blade (14), and the other configurations are similar to those of the above-described embodiment, so here, the horizontal blade (14) is used.
Only the configuration of will be described.

First, the first modification will be described. As shown in FIGS. 8 and 9, in the horizontal blade (14) of this example, the front end portions of the fin side portions (14b, 14b) are twisted downward with respect to the front end portion of the fin center portion (14a). Has been formed. That is, even when the conditioned air guided by the fin center portion (14a) (see the arrow B in FIG. 9) is in the horizontal blowing state, the fin side portions (14b, 14)
conditioned air guided by b) (arrow C in FIG. 9)
Will be blown downward by an amount corresponding to the twist angle of the fin side portions (14b, 14b) with respect to the fin center portion (14a). In this way, the guiding means (20) according to the invention is constructed.

Therefore, even with the configuration of the first modification, it is possible to secure a horizontal blow-out while preventing the ceiling surface (R) from being soiled, prevent the deterioration of the appearance of the ceiling surface (R), and perform air conditioning. It is possible to achieve both efficiency and security.

Next, a second modification will be described. As shown in FIG. 10, the horizontal blade (14) of this example is formed to have a uniform width dimension over the entire longitudinal direction, and the fin side portion (14b) has a thickness of the horizontal blade (14). A plurality of through holes (14e, 14e, ...) As guide means (20) referred to in the invention as penetrating in the vertical direction are formed. That is, even when the conditioned air guided by the fin center portion (14a) (see arrow B in FIG. 10) is in a horizontal blowing state, the large amount of conditioned air guided by the fin side portions (14b, 14b). The portion is adapted to pass through the through holes (14e, 14e, ...) And be blown downward (see arrow C in FIG. 10).

Therefore, according to the structure of the second modified example as well, it is possible to secure the horizontal blow-out while preventing the ceiling surface (R) from being soiled, prevent the deterioration of the appearance of the ceiling surface (R), and perform the air conditioning. It is possible to achieve both efficiency and security.

In this example, the length of the fin side portion (14b) is about 2 with respect to the length of the entire horizontal blade (14).
Although set to about 5%, the inventions of claims 1 to 8 are
Not limited to this, it is desirable to set the ceiling surface (R) as small as possible within a range where dirt does not occur.

Further, although the guide means (20) of this embodiment is formed integrally with the horizontal blade (14), it may be constituted by another member which is detachable.

[0041]

As described above, according to the present invention, the following effects are exhibited. According to the first aspect of the present invention, guide means for guiding the blowing direction of the conditioned air blown from the blowing outlets downward is provided at both ends of the horizontal blade in the horizontal direction, which contributes to the generation of dirt on the ceiling surface. Since only the blowing direction of the air is changed downward, it is possible to secure the horizontal blowing while preventing the contamination of the ceiling surface during the cooling operation that requires the horizontal blowing of the conditioned air. It is possible to avoid the occurrence of dirt on the ceiling surface while obtaining the blowing direction according to the operating state.

Further, in the invention of claim 2 Symbol mounting by forming a through hole in the thickness direction of the horizontal end portions of the horizontal vane, in order was changed blowing direction of the air downward, specifically as guide means The configuration can be obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner.

FIG. 2 is a diagram of the ceiling-embedded air conditioner viewed from the indoor side.

FIG. 3 is a perspective view of horizontal blades.

FIG. 4 is a perspective view showing a suspended support state of the air conditioner.

FIG. 5 is a perspective view showing a suspended portion by a suspension bolt.

FIG. 6 is a cross-sectional view of a blowout port portion for explaining a blowout operation of conditioned air.

FIG. 7 is a diagram showing an airflow state of conditioned air.

FIG. 8 is a perspective view of horizontal blades according to a first modification.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a perspective view of horizontal blades according to a second modification.

11 is a view corresponding to FIG. 7 in a conventional example.

FIG. 12 is a diagram showing a stain occurrence area on the ceiling surface.

[Explanation of symbols]

1 Ceiling embedded air conditioner 9b air outlet 14 Horizontal blade 14a Fin center part (center part) 14b Fin side part (both ends) 14e through hole 20 means of guidance R ceiling surface

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Claims (7)

(57) [Claims] 1. A blowout port (9b) that is embedded in a ceiling surface (R) and blows conditioned air toward an indoor space is provided, and the blowout vertical direction of the conditioned air is changed to the blowout port (9b). In a ceiling-embedded air conditioner equipped with freely extending horizontal blades (14), horizontal end portions (14b, 14b) of the horizontal blades (14) are provided with air outlets (9b). Of the conditioned air that is blown out, both horizontal ends of the horizontal blade (14) are wider than the blowing direction of the conditioned air that flows through the horizontal center (14a) of the horizontal blade (14).
Change the blowing direction of the conditioned air flowing through (14b, 14b) to downward.
A horizontal blade structure for a ceiling-embedded air conditioner, further comprising guide means (20). 2. It is embedded in the ceiling surface (R) and faces the indoor space.
Equipped with an outlet (9b) for blowing out conditioned air,
Air-conditioning air can be blown up and down freely at the outlet (9b)
Ceiling with horizontal blades (14) extending horizontally
In the embedded air conditioner, the horizontal blades (14) are provided at both ends (14b, 14b) in the horizontal direction.
Is the blowing direction of the conditioned air blown from the outlet (9b)
Flow through the horizontal center (14a) of the horizontal blade (14)
The guide means (20) that guides the conditioned air to the lower side than the blowing direction is
Provided, said guide means (20) is at least formed through the thickness direction of the horizontal end portions of the horizontal vane (14) (14b, 14b) 1
Characterized by two through holes (14e)
Horizontal vane structure of the ceiling embedded air conditioner that. 3. It is embedded in the ceiling surface (R) and faces the indoor space.
Equipped with an outlet (9b) for blowing out conditioned air,
Air-conditioning air can be blown up and down freely at the outlet (9b)
In a ceiling-embedded air conditioner having horizontal blades (14) extending in the horizontal direction, among the conditioned air blown out from the air outlet (9b), from the longitudinal center of the air outlet (9b). A means to change the blowing direction of the conditioned air blown from both longitudinal ends of the blowout port (9b) to the downward direction rather than the blowing direction of the conditioned air blown
A ceiling-embedded air conditioner characterized by being provided . 4. A blower outlet (9b) that is embedded in a ceiling surface (R) and blows out conditioned air toward the indoor space is provided, and the blowout vertical direction of the conditioned air is changed to the blowout outlet (9b). In a ceiling-embedded air conditioner equipped with freely extending horizontal blades (14), in the conditioned air blown out from the outlet (9b ), the horizontal center of the horizontal blades (14). Both ends of the horizontal blades (14) in the horizontal direction, as compared with the blowing direction of the conditioned air flowing through the section (14a).
The direction of the conditioned air flowing through the parts (14b, 14b) is downward
A ceiling-embedded air conditioner comprising a changing unit. 5. A blower outlet (9b) that is embedded in the ceiling surface (R) and blows out conditioned air toward the indoor space is provided, and the blowout vertical direction of the conditioned air is changed to the blowout outlet (9b). In a ceiling-embedded air conditioner including freely movable horizontal blades (14), the horizontal blades (14) include a fin center portion (14a) at a central portion in the longitudinal direction and the fin center portion. (14a) with fin side portions (14b, 14b) on both sides, wherein the width dimension of the fin side portions (14b, 14b) is shorter than the width dimension of the fin center portion (14a). Type air conditioner. 6. A blowout port (9b) embedded in the ceiling surface (R) for blowing the conditioned air toward the indoor space is provided, and the vertical direction of blowing the conditioned air is changed to the blowout port (9b). In a ceiling-embedded air conditioner including freely movable horizontal blades (14), the horizontal blades (14) include a fin center portion (14a) at a central portion in the longitudinal direction and the fin center. The horizontal blades (14) are composed of fin side portions (14b, 14b) on both sides of the portion (14a), and the edge portion (14c) of the portion located on the inner side of the air outlet (9b) is straight. A ceiling-embedded air conditioner characterized in that a fin center portion (14a) of an edge portion (14d) of a portion located on the outlet side of the air outlet (9b) has a shape projecting to the front side. Length of 7. fin side portion (14b, 14b) is embedded ceiling according to claim 5 or 6, wherein less than respectively 25% with respect to the horizontal vane (14) overall length dimension Built-in air conditioner.