JP2001193960A - Ceiling-buried air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a ceiling from being contaminated by obtaining an appropriate blowing direction according to each operation state when performing the cooling or heating operation or the like of a ceiling-buried air-conditioner. SOLUTION: An air suction opening 15 and an air supply opening 16 are provided at a decoration panel 14 on the bottom surface of an air-conditioner 1 facing indoor space. The blowing direction of air-conditioned air from the air supply opening 16 is changed up and down, and a horizontal blade 18 for guiding is provided so that its angle becomes approximately 45 deg. or less for the lower surface of a ceiling board 70. By including a spacer member 72 between the decoration panel 14 and the ceiling board 70, the upper end of the air suction supply opening 16 is separated from the ceiling board 70 downward by 45 mm or more. An external inclination surface 14a is formed toward the outer-periphery side of the casing 10 from the upper end of the air supply opening 16 of the decoration panel 14 so that it approaches the lower surface of the ceiling board 70, its inclination angle θ is set to at least 10 deg., and at the same time the upper end pad of the air supply port 16 is separated from the boundary position for the ceiling board 70 of the air-conditioner 1 at least by 75 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement structure of an air outlet of a ceiling-mounted type air conditioner, and more particularly, to a method of adjusting the blowing direction of the conditioned air during a cooling operation or the like so as to be included in the conditioned air. It belongs to the field of antifouling technology for preventing fine particulate dust from adhering to the ceiling surface.

[0002]

2. Description of the Related Art Conventionally, a horizontal blade capable of changing a blowing direction of conditioned air up and down is provided at an air outlet of a ceiling-embedded air conditioner. Then, while the airflow direction of the conditioned air is relatively downward during the heating operation by the horizontal blades, it is relatively upward during the cooling operation so as to be nearly parallel to the ceiling surface (so-called horizontal blowing). In the operating state, the temperature distribution in the room is made uniform to improve the air conditioning efficiency.

However, in the above-mentioned horizontal blowing state, fine particulate dust contained in the blown conditioned air may adhere to the ceiling surface, and the ceiling surface may be partially contaminated. Specifically, when the air conditioner is viewed from the horizontal direction as shown in FIG. 9, the airflow blown out from the outlet (a) in the horizontal blowout state becomes substantially V-shaped when viewed along the flow,
At the central portion in the longitudinal direction of the outlet (a), the initial velocity of air blowing is high, so that the airflow flows in a region away from the ceiling surface (b). In addition, since the particulate dust contained in the blown air has a high inertial force, the dust hardly adheres to the ceiling surface (b).

On the other hand, the air flow spreads laterally or becomes vortex at both longitudinal sides of the air outlet (a), and the initial velocity of the air flow is lower than that at the central portion. It flows along the ceiling surface (b). In addition, the dust contained in the blown air has a low inertia force and easily adheres to the ceiling surface (b), so that the area (D) ( Dust in the air adheres to (see FIG. 2), and the dust easily becomes dirty.

In order to avoid such contamination, Japanese Unexamined Patent Publication No. Hei 3-160266 discloses that horizontal wings are provided with detachable auxiliary fins for shifting the blowing direction to the ceiling side.
It has been proposed to attach and detach the auxiliary fins in accordance with the ease with which ceiling dirt occurs. That is, for example, in an environment where indoor air is very dusty and ceiling dirt is likely to occur, or in places where there is a particularly high demand for dirt prevention, such as hospitals, the auxiliary fins are removed and the horizontal blades face downward while the ceiling dirt is removed. An auxiliary fin is attached in an environment where the occurrence of dust is less likely to occur or in a place where the need for prevention of dirt is low, so that horizontal blowing can be performed.

[0006]

However, even if the auxiliary fins are provided as in the conventional example, the auxiliary fins have to be removed in an environment where ceiling dirt is likely to be generated. , The conditioned air is always blown downward, so that not only does the air conditioning efficiency decrease during the cooling operation in which horizontal blowing should be performed originally, but also the uncomfortable feeling caused by the direct blow of the cool air to the indoor people ( The problem of the so-called draft feeling) also occurs.

[0007] The present invention has been made in view of such a point, and an object of the present invention is to improve the arrangement of an air-conditioning air outlet and the like so as to respond to the operating state of an air conditioner. An object of the present invention is to prevent the ceiling surface from being stained while obtaining an appropriate blowing direction.

[0008]

In order to achieve the above object, according to a first solution of the present invention, an air outlet of a ceiling-embedded type air conditioner is controlled by a guide means so as to blow out conditioned air. The lowermost part of the outlet forming member on the guided side was arranged so as to be appropriately separated from the ceiling surface.

Specifically, in the invention of claim 1, the ceiling surface (7
0), an outlet (16) for blowing conditioned air toward the indoor space is provided, and a guide means (18) capable of guiding the direction of the conditioned air to the outlet (16) is provided. Assuming an embedded ceiling type air conditioner provided, in this device, the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18) is lowered from the ceiling surface (70). It was arranged so as to be at least 45 mm apart. As the guide means (18), for example, the air passage on the upstream side leading to the outlet (16) may be curved to guide the direction of the blown conditioned air.

With the above configuration, the conditioned air blown out from the air outlet (16) of the air conditioner (1) during a cooling operation or the like is guided by the guide means (18) to become a jet flow blown into the indoor space. The jet axis is bent toward the ceiling surface (70) by the Coanda effect. However, since the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18) is separated from the ceiling surface (70) by 45 mm or more, any air having a general blowing speed may be used. For example, even if the flow is on both sides in the longitudinal direction of the outlet (16) having a relatively low initial velocity, the air flow does not reach the ceiling surface (70), and the temperature of the room The difference will cause it to fall. With this, even if the air-conditioning air blowing direction is directed upward so as to be nearly parallel to the ceiling surface, the air flow does not flow along the ceiling surface, and therefore, the dirt on the ceiling surface in a so-called horizontal blowing state is reduced. Can be prevented.

In the invention of claim 2, the air conditioner main body (1
0) has a panel member (14) fixed to the ceiling surface and provided with an air outlet (16) so as to face the indoor space, between the panel member (14) and the ceiling surface (70). And a spacer member (72) for adjusting the vertical spacing of the spacers.

In this way, in a situation where there is a high demand for preventing the ceiling from being stained, the spacer member (72) allows the panel member (14).
By adjusting the distance between the air outlet (16) and the ceiling surface (70) by adjusting the distance between the air outlet (16) and the ceiling surface (70), forming the air outlet on the side where the direction of air-conditioned air is guided At the bottom of the member,
It can be set to be surely separated from the ceiling surface (70) by 45 mm or more downward. On the other hand, if the requirement for prevention of dirt is low, the same air conditioner (1) can be installed without the spacer member (72), so that the air conditioner (1) and the ceiling surface can be installed.
(70) can enhance the sense of unity and improve the appearance.

According to the third aspect of the present invention, the outlet forming member on the side where the blowing direction is guided by the guide means (18) is provided at the outlet.
From the edge of (16) toward the outer peripheral side of the air conditioner body (10), an external inclined surface (14a) that is inclined so as to approach the ceiling surface
The inclination angle of the external inclined surface (14a) with respect to the ceiling surface at least near the edge of the outlet (16),
It was set to 10 degrees or more. By doing so, the Coanda effect between the flow of the conditioned air blown out from the outlet (16) and the outer inclined surface (14a) of the outlet forming member is reduced, and the operational effect of the invention of claim 1 is enhanced. be able to.

In the invention of claim 4, the air conditioner main body (1
The inclination angle of the line connecting the boundary position of the ceiling surface (70) and the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18) with respect to the ceiling surface (70) is 10 degrees. It was above. By doing so, the Coanda effect between the flow of the conditioned air blown out from the outlet (16) and the surface of the outlet forming member is reduced, and the same operation and effect as the third aspect of the invention can be obtained. .

According to the fifth aspect of the present invention, the air-conditioning apparatus approaches the ceiling surface from the lowermost part of the air outlet forming member on the side where the blowing direction is guided by the guide means (18) toward the outer peripheral side of the air conditioner body (10). And a second inclined surface following the first inclined surface (14a), and an inclination angle of the first inclined surface (14a) with respect to the ceiling surface (70). 12
Degrees or less, and the inclination angle of the second inclined surface with respect to the ceiling surface (70) exceeds 12 degrees.

By doing so, a part of the conditioned air blown out from the outlet (16) flows along the first inclined surface (14a) and the first inclined surface (14a) and the second inclined surface (14a). It comes off at the boundary position with the above, whereby the effect of the invention of claim 1 can be enhanced.

Next, in a second solution of the present invention, in order to prevent the air flow blown out from the air outlet of the ceiling-embedded type air conditioner from being directed upward as much as possible, the air flow on the guided side of the air flow is controlled. The shape of the outlet forming member was determined.

Specifically, in the invention of claim 6, the ceiling surface (7
0), an outlet (16) for blowing conditioned air toward the indoor space is provided, and a guide means (18) capable of guiding the direction of the conditioned air to the outlet (16) is provided. It is assumed that the installed ceiling-mounted air conditioner is provided. And
The outlet forming member on the side to which the blowing direction is guided by the guide means (18) is provided so as to approach the ceiling surface from the edge of the outlet (16) toward the outer peripheral side of the air conditioner body (10). Forming an external inclined surface (14a) inclined to the outer inclined surface (14a).
The angle of inclination of at least the vicinity of the edge of the outlet (16) with respect to the ceiling surface was 10 degrees or more.

With the above configuration, the conditioned air blown out of the air outlet (16) of the air conditioner (1) during a cooling operation or the like is guided by the guide means (18) to form a jet which blows out into the indoor space. The jet axis is first set on the outer inclined surface (14
It is bent upward by the Coanda effect between a).
However, at least the outlet (16) of the external inclined surface (14a)
Since the inclination angle near the edge is as large as 10 degrees or more with respect to the ceiling surface (70), the Coanda effect is alleviated, and the airflow hardly reaches the ceiling surface (70). Thus, even if the air-conditioned air is blown up, the flow of the blown air can be suppressed from flowing along the ceiling surface (70), and therefore, the dirt on the ceiling surface in a so-called horizontal blow state can be significantly reduced.

Further, in the invention of claim 7, an outlet (16) which is embedded in the ceiling surface (70) and blows out conditioned air toward the room space is provided, and the outlet (16) is provided in the outlet (16). It is assumed that the ceiling-embedded air conditioner is provided with a guide means (18) capable of guiding the direction of air-conditioned air blowing. Then, the boundary position of the air conditioner body (10) and the ceiling surface (70) and the guiding means
The inclination angle with respect to the ceiling surface (70) of the line connecting the bottom of the outlet forming member on the side where the blowing direction is guided by (18),
It was set to 10 degrees or more.

According to this structure, the Coanda effect between the flow of the conditioned air blown out from the air outlet (16) and the lower surface of the air outlet forming member is reduced, and the same operation and effect as the invention of claim 6 can be obtained. Can be.

Further, according to the invention of claim 8, the ceiling surface (70)
An air outlet (16) that blows out the conditioned air toward the indoor space is provided, and a guide means (18) that can guide the blowing direction of the conditioned air is provided at the air outlet (16). It is assumed that a ceiling-mounted air conditioner is installed. Then, a first inclined surface which is inclined so as to approach the ceiling surface from the lowermost part of the air outlet forming member on the side where the blowing direction is guided by the guide means (18) toward the outer peripheral side of the air conditioner body (10). (1
4a) and a second inclined surface following the first inclined surface (14a), the inclination angle of the first inclined surface (14a) with respect to the ceiling surface (70) is set to 12 degrees or less, and The angle of inclination of the second inclined surface with respect to the ceiling surface (70) was more than 12 degrees.

With this configuration, the conditioned air blown out of the air outlet (16) of the air conditioner (1) during a cooling operation or the like is guided by the guide means (18) to become a jet flow blown into the indoor space,
Part of the air flow flows along the first inclined surface (14a),
Peeling occurs at the boundary between the first inclined surface (14a) and the second inclined surface. Thereby, the air flow hardly reaches the ceiling surface (70), and therefore, the dirt on the ceiling surface in a so-called horizontal blowing state can be greatly reduced.

According to a ninth aspect of the present invention, in any one of the fifth and eighth aspects, the distance from the lowermost portion of the outlet forming member to the boundary between the first inclined surface (14a) and the second inclined surface is 70 mm or more. By doing so, the function and effect of the invention of claim 5 or 8 can be sufficiently obtained.

[0025] According to the tenth aspect of the present invention, the first aspect or the third to third aspects are described.
In any one of the inventions, the lowermost part of the air outlet forming member on the side where the blowing direction is guided by the guide means (18) is positioned from the boundary position between the air conditioner body (10) and the ceiling surface (70). They were arranged so as to be separated from each other by 75 mm or more in the horizontal direction.

As a result, a part of the conditioned air blown out from the outlet (16) is bent upward by the Coanda effect and flows along the outlet forming member. Since the lowermost part is sufficiently far from the boundary position with the ceiling surface (70) in the horizontal direction, most of the airflow flowing along the outlet forming member as described above before reaching the ceiling surface (70) The dirt on the ceiling surface (70) can also be significantly reduced.

Next, in a third solution of the present invention, the lowermost part of the air outlet forming member of the air conditioner is arranged sufficiently horizontally in the horizontal direction from the boundary position with the ceiling surface, so that the air outlet is formed. Even if a part of the airflow blown out from the air flows upward, the ceiling surface can be prevented from being stained by dust contained in the air.

Specifically, in the invention of claim 11, the ceiling surface
An outlet (16) that is embedded in (70) and blows out conditioned air toward the indoor space is provided, and the outlet (16)
It is assumed that the ceiling-embedded air conditioner is provided with guide means (18) capable of guiding the direction of air-conditioned air blowout. The lowermost part of the outlet forming member is
75 mm horizontally from the boundary position between (10) and the ceiling surface (70)
It was arranged so as to be separated by at least.

With the above configuration, the conditioned air blown out from the air outlet (16) of the air conditioner (1) during a cooling operation or the like is guided by the guide means (18) to become a jet flow blown into the indoor space. The jet shaft is first bent upward by the Coanda effect between the jet forming member and a part of the air flow to flow along the outlet forming member. However, since the lowermost part of the outlet forming member is sufficiently separated from the boundary position with the ceiling surface (70) in the horizontal direction by 75 mm or more,
As described above, the airflow flowing along the outlet forming member rarely reaches the ceiling surface (70), and this airflow eventually falls due to a temperature difference from room air. Therefore, it is possible to suppress the blown air flow from flowing along the ceiling surface (70), and it is possible to significantly reduce stains on the ceiling surface in a so-called horizontal blowing state.

As described above, as a result of a part of the airflow blown out from the air outlet (16) flowing along the air outlet forming member, dust contained in the air flow adheres to the air outlet forming member,
It is conceivable that the outlet forming member is contaminated. In this regard, for example, the surface of the outlet forming member is processed so as to be hardly contaminated, or the surface of the outlet forming member is removed of dirt. By processing it in an easy state, it is possible to respond effectively.

Next, according to a twelfth aspect of the present invention, the air outlet (16) according to any one of the first to eleventh aspects of the present invention includes:
A rectifying member (19) for regulating the flow of the conditioned air in the longitudinal direction of the outlet (16) is provided. With this, the conditioned air blown out from the outlet (16) is rectified so that the flow in the longitudinal direction of the outlet (16) is regulated by the rectifying member (19) and heads in the blowing direction. The initial speed of the outlet is the outlet (16)
The height of the air-conditioning air is also increased at both side portions of the air-conditioning device in the same manner as at the center portion, whereby the upward flow of the conditioned air in the horizontal blowing state can be more effectively suppressed. The rectifying member (19)
May be arranged at least at substantially both ends in the longitudinal direction of the outlet (16).

According to the thirteenth aspect, the guide means (18) is
Horizontal blades that can change the blowing direction of conditioned air up and down. This allows the flow of the conditioned air from the outlet (16) to be changed up and down by the horizontal blades (18), so that the flow of the blown air is relatively downward during the heating operation, while the cooling operation is performed. In some cases, the air-conditioning efficiency can be increased in each operation state by setting the air-conditioning apparatus to a horizontal blowing state. In particular, during the cooling operation, the above-mentioned effects can be sufficiently obtained if the air flow is made as horizontal as possible by the horizontal blades (18) as long as the flow of the blown air does not flow along the ceiling surface (70). Can be obtained.

According to a fourteenth aspect of the present invention, a rectifying plate (19) for regulating the flow of the conditioned air in the longitudinal direction of the air outlet (16) is provided on the horizontal blade (18) of the thirteenth aspect. As a result, the flow of the blown air is effectively regulated by the straightening vanes (19) on the horizontal blades (18), and the initial speed of the blown air is high at both sides of the outlet (16) as well as at the center. Because
The upward flow of the conditioned air in the horizontal blowing state can be more effectively suppressed. The rectifying member (19) may be arranged so as to correspond to at least substantially both ends in the longitudinal direction of the air outlet (16) on the horizontal blade (18).

According to a fifteenth aspect of the present invention, the horizontal blade (18) according to the fourteenth aspect of the present invention is formed of an elongated plate member which is curved in the width direction, and the current plate (19) is The blades (18) were arranged at predetermined intervals over the entire surface in the longitudinal direction on the surface curved inside. Thus, the flow of the conditioned air can be smoothly changed by the long horizontal blades (18) curved in the width direction, and the blowing direction can be changed. In addition, by arranging the rectifying plates over the entire curved inner surface in the longitudinal direction, the rectifying plates can rectify the flow of the blown air as a whole.

In the sixteenth aspect, the initial velocity of the air flow near the center of the outlet (16) is not less than about 2 m / sec and not more than about 6 m / sec. Thus, it is possible to sufficiently suppress the airflow from flowing upward even in the horizontal blowing state without increasing the blowing noise.

In the seventeenth aspect of the present invention, the running distance of the conditioned air reaching the air outlet (16) is set to 30 mm or more. By doing so, the flow of the conditioned air blown out from the outlet (16) is adjusted so as to be generally directed to the blowing direction, so that the speed of the blown air particularly at both sides of the outlet (16) is increased. In addition, even in the horizontal blowing state, the air flow can be suppressed from being directed upward.

According to the eighteenth aspect of the present invention, the position where the airflow blown out from the air outlet (16) is finally separated from the air conditioner main body (10) is determined by the air conditioner main body (10) and the ceiling surface (70). ) Was set to be 90 mm or more away from the boundary position. By doing so, the Coanda effect between the flow of the conditioned air blown out from the outlet (16) and the ceiling surface (70) can be reduced, and the upward flow of the airflow can be suppressed even in the horizontal blowing state.

[0038]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)-Overall Configuration of Air Conditioner-Fig. 1 is a longitudinal sectional view showing a configuration of an embodiment of an air conditioner (1) embedded in a ceiling according to the present invention. As shown in the figure, the air conditioner (1) has a casing (10) (air conditioner body) containing a fan (20) and a heat exchanger (30), and a ceiling plate (70). It is embedded in the installation opening (71) that opens to the ceiling, and is installed in the space above the ceiling.

The casing (10) is composed of a container-shaped main casing (11) that opens downward and a decorative panel (14) that covers the bottom opening of the main casing (11), not shown. Is suspended and fixed to an upper beam or the like by a suspension fitting. Specifically, the main body casing (11) includes a top plate (12) formed by cutting out four corners of a square and having an octagonal shape, and a side plate (13) extending downward from an outer edge of the top plate (12), On the other hand, the decorative panel (14) has a substantially square plate shape, is attached to a lower end of the side plate (13), and a peripheral portion is fixed to a ceiling plate (70) via a spacer member (72) described later. Have been.

As shown in FIG. 2, an air inlet (15) is formed substantially in the center of the decorative panel (14) so as to open in a square shape. ) 4
Two air outlets (16) are formed. The air suction port (15) is provided with an air filter (17) for removing suspended matters such as particulate dust contained in the room air over the entire surface thereof, and the air filter (17) Is entirely supported by a lattice-shaped filter cover, and horizontal blades (18) capable of changing the blowing direction of the conditioned air up and down are provided at the air outlet (16). In addition, the decorative panel (14) with the opening of the air outlet (16) forms an outlet forming member as shown in FIG.

More specifically, as shown in FIGS. 3 and 4 in an enlarged manner, the side wall on the outer peripheral side (right side in the figure) of the air passage communicating with the air outlet (16) of the decorative panel (14) is substantially formed. A vertical surface (16a) extending vertically downward, and an inclined surface (16b) inclined downward from the lower end of the vertical surface (16a) toward the outer periphery of the panel and connected to the lower surface of the decorative panel (14). Meanwhile, the air outlet
The side wall on the inner peripheral side of the panel (left side in the figure) of the air passage communicating with (16) has a curved surface (1
6c) and a vertical surface (16d) extending substantially vertically downward from the lower end of the curved surface (16c). Then, two opposing wall surfaces having such a shape are formed over the entire length in the longitudinal direction (the direction orthogonal to the paper surface) of the air outlet (16), and an air passage sandwiched between both wall surfaces is It has a function of a runway that changes the direction of the flow of conditioned air toward the outlet (16) while adjusting the flow. In this approach path, the approach distance of the conditioned air reaching the air outlet (16) is about 30 mm or more.

The horizontal blade (18) is a long plate member as shown in FIG. 5, is slightly curved in the width direction, and is attached to the air outlet (16). In the state,
The air outlet 16 is rotatable around a support shaft x along a base edge on the rear side (upstream of the flow of the conditioned air), and is rotated by a motor (not shown). It is designed to be rotated as a moving center. Then, when the conditioned air is blown downward most, as shown in FIG. 4, the rear surface (8b) of the horizontal blade (18) faces the vertical surface (16
In the so-called horizontal blowing state while being directed downward so as to overlap with d), as shown in FIG.
(18) is turned upward so that its front surface (18b) is substantially parallel to the inclined portion (16b) of the panel outer peripheral side wall surface.

The fan (20) is a so-called turbo fan provided at a substantially central position inside the main body casing (11) and having a blade (23) held between a shroud (21) and a hub (22). is there. A drive shaft (26) of a fan motor (25) attached to a top plate (12) of a main body casing (11) is inserted and fixed to a hub (22) of the fan (20). When the fan (20) is rotationally driven by the driving force of (25), the air sucked from below the fan (20) is sent to the radial side. The fan (2
Below the (0), a bell mouth (27) for guiding the air flowing into the casing (10) from the air inlet (15) to the fan (20)
Is provided.

Further, the heat exchanger (30) comprises a number of plate-like fins (31) provided in parallel with each other and a heat transfer tube (32) provided through the fins (31). This is a so-called cross fin heat exchanger. This heat exchanger (30)
Is configured in a rectangular cylindrical shape in plan view so as to surround the periphery of the fan (20), is connected to an outdoor unit via a refrigerant pipe (not shown), and serves as an evaporator during cooling operation and as a heating device. During operation, it functions as an aggregator and regulates the temperature of the air sent from the fan (20). A drain pan (33) for receiving drain water is provided below the heat exchanger (30).

That is, the air filter (17), the bell mouth (27), the fan (20) and the air filter (17) are provided in the main casing (11) of the air conditioner (1) from the air inlet (15) of the decorative panel (14). An air flow passage (W) is formed through the heat exchanger (30) to the air outlet (16). When the fan (20) is driven during the air conditioning operation, the room air taken into the casing (10) from the air suction port (15) via the air filter (17) is supplied to the bell mouth (27) and the fan ( 20) and heat exchanger (30) in order
(W), heat exchange with the refrigerant in the heat exchanger (30) and temperature control (cooling in the cooling operation, heating in the heating operation), and then the conditioned air The air is blown out from the air outlet (16) into the indoor space to perform air conditioning in the indoor space.

The main feature of the first embodiment is that a spacer member (7) is provided between the decorative panel (14) and the ceiling plate (70) of the air conditioner (1) to adjust the vertical space between them.
2), and as a result, as shown in FIG. 3, the upper edge of the air outlet (16) in the decorative panel (14),
That is, the space h in the vertical direction between the lowermost portion of the outlet forming member on the side where the blowing direction of the conditioned air is guided by the horizontal blades (18) and the lower surface of the ceiling plate (70) is set to 45 mm or more. And the upper edge of the air outlet (16) and the decorative panel
The interval L between the outer peripheral edge of (14) (the boundary position between the decorative panel (14) and the ceiling plate (70)) is set to 90 mm or more.

In other words, in this embodiment, finally, the decorative panel (1) of the air flow blown out from the air outlet (16) is used.
The position of peeling from 4) is 45 degrees below the lower surface of the ceiling plate (70).
mm or more, and from that position the decorative panel (14)
And the distance L to the boundary position of the ceiling plate (70) is 90 mm or more, whereby the air outlet (1
The air-conditioning air blown in a so-called horizontal blowing state from 6) can be prevented from flowing along the lower surface of the ceiling plate (70). That is, when there is a request to blow the conditioned air relatively downward, such as during a heating operation, the horizontal blades (18) are turned substantially vertically downward as shown in FIG. 18) and the vertical plane (16a) on the outer peripheral side of the panel of the air outlet (16).
And blow it out substantially vertically downward.

On the other hand, when a so-called horizontal blow-out state is set during a cooling operation or the like, as shown in FIG.
(18) is turned upward, and the front surface (18) of the horizontal blade (18) is
a) is replaced with the inclined surface (16
Make it almost parallel to b). In this way, the conditioned air is curved from the curved surface (6c) to the front surface (18a) of the horizontal blade (18) along the side wall of the air passage (runway) communicating with the air outlet (16). And the direction of the streamline changes greatly and smoothly, and as shown by an arrow S in FIG.
(16) passing between the inclined surface (16b) on the outer peripheral side of the panel and the horizontal blade (18), from the air outlet (16) to an angle almost parallel to the lower surface of the ceiling plate (70) (for example, the ceiling plate ( 70) Approximately 3 angles with the lower surface
0 ° to 35 °).

At this time, the conditioned air blown from the air outlet (16) into the indoor space becomes a jet, and the blow angle of the conditioned air is changed to the ceiling plate.
(70) When nearly parallel to the lower surface, the jet axis is bent upward by the Coanda effect, but in this embodiment, the air outlet (16) is appropriately separated from the ceiling plate (70) as described above. If the initial velocity of the air flow near the center of the air outlet (16) is a general value of, for example, about 2 to 6 m / sec, the initial velocity of the air is relatively low. The flow of the conditioned air, including the flow on both sides of the air outlet (16), does not rise to the lower surface of the ceiling plate (70) but eventually falls due to the temperature difference with the room air.

That is, conventionally, in a part of the ceiling-embedded air conditioner where the air blowing speed is low, the air flow easily approaches the lower surface of the ceiling plate (70) due to the Coanda effect, and the horizontal blades (18) during cooling operation. ), The blowing direction of the conditioned air is relatively directed upward, for example, by about 40 to 45 ° with respect to the lower surface of the ceiling plate (70), and the air flow flows along the lower surface of the ceiling plate (70), and FIG. Although the ceiling dirt has occurred in the area (D) indicated by the phantom line, according to the air conditioner (1) according to this embodiment, the air The direction of air-conditioning air blowing from the air outlet (16) is adjusted by, for example, 30
Even when approaching up to ~ 35 °, the airflow is
0) Almost no flow along the lower surface, which can prevent the occurrence of ceiling dirt, which has been a problem in the past.

Table 1 shows that four types of air conditioners (types 1 to 4) having different sizes and shapes of air outlets (16) are respectively provided with air blowers via spacer members (72) as in this embodiment. Adjusting the position of the outlet (16) to the ceiling plate (70) while adjusting the position of the ceiling plate (7) without using the spacer member (72)
This shows the result of examining the state of occurrence of ceiling dirt after actually operating for a predetermined time, in comparison with the case where it is attached to (0). According to this experimental result, regardless of the size and shape of the air outlet (16), by using the spacer member (72), the minimum blowing angle at which ceiling dirt does not occur is 5 to 10 °.
It can also be seen that can be reduced.

[0053]

[Table 1]

Therefore, the air conditioner of this embodiment
According to (1), a spacer member (72) is provided between the decorative panel (14) and the ceiling plate (70), and the air outlet (16) is connected to the ceiling plate (7).
0), the air-conditioning air is blown out more horizontally than before, especially during cooling operation where horizontal air-conditioning air blowing is required. , So that
The air-conditioning efficiency can be ensured and the sense of discomfort (draft) for indoor occupants can be eliminated.

In a situation where there is little demand for preventing ceiling dirt, the same air conditioner (1) can be installed without the spacer member (72).
(1) can be installed so as to enhance the sense of unity with the ceiling to improve the appearance.

(Modification) FIG. 6 shows a modification of the first embodiment. In this modification, the decorative panel (14) has an air outlet.
(16) Projecting plate (16) that extends diagonally downward from the upper edge
e) is provided. In this case, the lowermost part of the outlet forming member on the side where the blowing direction of the conditioned air is guided by the horizontal blades (18) is not the upper edge of the air outlet (16), but the protruding plate (16e). The tip of the Accordingly, the distance h from the tip end position of the protruding plate (16e) to the lower surface of the ceiling plate (70) is set to 45 mm or more, and the boundary position between the decorative panel (14) and the ceiling plate (70) from the tip end position. By setting the distance to 90 mm or more, the same operation and effect as in the first embodiment can be obtained.

(Embodiment 2) FIG. 7 shows an embodiment 2 of an embedded ceiling air conditioner (1) according to the present invention. The air conditioner (1) according to this embodiment 2 has an air outlet ( Since it is the same as that of the first embodiment except for the detailed configuration such as 16), the same members will be denoted by the same reference numerals, and detailed description will be omitted. The main characteristic part of the second embodiment is that a spacer member (72) is provided between the decorative panel (14) and the ceiling plate (70) of the air conditioner (1) as in the first embodiment. In addition to the upper edge of the air outlet (16) being appropriately spaced from the lower surface of the ceiling plate (70), the air outlet
(16) The airflow blown out of (16) should not be as upward as possible, and even if a part of the airflow flows upward, the lower surface of the ceiling plate (70) should not be stained by dust contained in the air. , The decorative panel outside the air outlet (16) (1
4) The dimension and shape are set.

More specifically, the air outlet (16) of the decorative panel (14) is located outside the air outlet (16), that is, on the side where the direction of air-conditioning air blowing is guided by the horizontal blades (18). A substantially planar outer inclined surface (14a) that is inclined from the upper edge toward the outer peripheral side of the air conditioner casing (10) toward the lower surface of the ceiling plate (70) is provided, and the outer inclined surface (14a) is provided. )
Is set to 10 ° or more with respect to the ceiling surface. As a result, the air flow (jet) blown out from the air outlet (16) during the cooling operation or the like is first bent upward by the Coanda effect between the decorative panel (14) and the outer inclined surface (14a). However, by setting the inclined state of the outer inclined surface (14a), the Coanda effect can be reduced, and the upward flow of the conditioned air can be reduced.

Also, the upper edge of the air outlet (16) and the ceiling plate
(70) The vertical distance h between the lower surface and the lower surface is set to 45 mm or more as in the first embodiment, and the upper edge of the air outlet (16) is the outer peripheral end of the spacer member (72). From the upper edge of the air outlet (16) and the boundary position of the air conditioner (1) and the ceiling plate (70) in the horizontal direction. Is 75mm
It is set above. Thereby, even if a part of the conditioned air blown out from the air outlet (16) flows upward, and then flows along the outer inclined surface (14a) of the decorative panel (14), the air outlet ( 16) Since the upper edge is sufficiently far away horizontally from the boundary with the ceiling plate (70), the decorative panel
Most of the airflow flowing along (14) descends before reaching the lower surface of the ceiling plate (70).

In addition, in the second embodiment, in place of the horizontal blade (18) of the first embodiment, for example, a horizontal blade (18) provided with a current plate (19, 19,...) As shown in FIG. Is used.
The horizontal blade (18) is formed of a long plate member slightly curved in the width direction, and the curved inner surface (18a) is a front surface, and the outer surface (18b) is a back surface. Have been.
Further, shell-like projections (18c, 18c) are integrally provided at both ends in the longitudinal direction of the horizontal blade (18), respectively, and project toward the front side, and the horizontal blade (18c) is provided at the end of each projection (18c). The connecting pins (18d, 18d) extend outward along the longitudinal direction of
d) is formed. The horizontal blade (18) is disposed at the air outlet (16) as shown in FIG. 7, and is located at the far side of the air outlet (16) (upstream of the flow of conditioned air: FIG. The two connecting pins (18d, 18
d) is rotatably connected and supported by the connecting member (14b) on the side of the decorative cover (14), whereby the horizontal blade (18) is driven around a support shaft x by the driving of a motor (not shown). It can be turned up and down.

Further, on the front surface (18a) curved inside the horizontal blade (18), the flow of the conditioned air is rectified at predetermined intervals over the entire longitudinal direction of the horizontal blade (18). (19, 19,...: 10 in the illustrated example) are fixedly arranged. Each of the rectifying plates (19) has a horizontal blade (18).
Are arranged across the width direction of the horizontal blade (18) so as to be substantially perpendicular to the front surface (18a) of the horizontal blade, and as shown by an arrow S in the figure,
The conditioned air flowing along the front surface (18a) of the horizontal blade (18)
While flowing between the flow straightening plates (19), the flow is straightened over the entire length of the horizontal blade (18). Like this, the current plate (19,19,…)
Since the air flow rectified by the air flow becomes a two-dimensional flow generally along the vertical plane, the initial velocity of the conditioned air blown out from the air outlet (16) is the same as that of the air outlet (16) on both sides of the air outlet (16). As well as higher.

Therefore, in the air conditioner (1) of the second embodiment, similarly to the first embodiment, the spacer member (72)
In addition to the fact that the upper edge of the air outlet (16) is appropriately spaced vertically from the lower surface of the ceiling plate (70) in addition to the upper edge of the air outlet (16), (70) is placed horizontally sufficiently away from the boundary with the air outlet (16)
By making the external inclined surface (14a) of the decorative panel (14) connected to the upper edge relatively inclined with respect to the horizontal plane, the air outlet (1
6) It is possible to suppress the air flow blown out from being bent upward, and further, it is necessary to lower a part of the air flow flowing upward along the decorative panel (14) before reaching the lower surface of the ceiling plate (70). Therefore, it is possible to more effectively prevent the ceiling surface from being stained by dust contained in the air as compared with the first embodiment.

In the second embodiment, the horizontal blades (18)
Rectifier plates (19, 19, ...) are provided to rectify the flow of the conditioned air, so that the decrease in the flow rate of the blown air at both sides of the air outlet (16) is almost eliminated, and the air The above effect can be further enhanced by suppressing the flow from going upward.

(Other Embodiments) The present invention is not limited to the first and second embodiments, but encompasses various other embodiments. That is, in each of the above embodiments,
Spacer member (72) between decorative panel (14) and ceiling plate (70)
Although the position of the air outlet (16) is adjusted by interposing, the vertical dimension of the decorative panel (14) is increased in advance without using the spacer member (72). Alternatively, the air outlet (16) may be arranged at an appropriate distance from the lower surface of the ceiling plate (70).

In each of the above embodiments, the air outlet (1
The horizontal vanes (18) are arranged in 6) to change the flow of the conditioned air up and down.However, without providing the horizontal vanes (18), the air passage to the air outlet (16) is provided. The flow of the conditioned air may be guided only by the curved shape of. In this case, the air passage itself constitutes the guiding means.

Furthermore, the air conditioner of the first embodiment
In (1), the vertical space h between the upper edge of the air outlet (16) and the lower surface of the ceiling plate (70) is specified. In the air conditioner (1) of the second embodiment, To determine the horizontal distance A from the upper edge of the air outlet (16) to the boundary position with the ceiling plate (70) of the air conditioner casing (10) and the inclination angle θ of the decorative panel external inclined surface (14a). But it is not limited to this.
That is, for example, by specifying only one of the horizontal distance A and the inclination angle θ, the occurrence of ceiling dirt can be significantly reduced as in the above-described embodiments. Alternatively,
By specifying any one set of the vertical distance h and the horizontal distance A, the vertical distance h and the inclination angle θ, or the horizontal distance A and the inclination angle θ, the occurrence of ceiling dirt can be reduced in the same manner as in each of the above embodiments. It can be almost completely prevented.

Further, the air conditioner (1) of the second embodiment.
, The inclination angle of the external inclined surface (14a) with respect to the lower surface of the ceiling plate (70) is set to 12 degrees or less, and the external inclined surface
A second inclined surface following (14a) may be formed, and the inclination angle of the second inclined surface with respect to the ceiling surface (70) may be greater than 12 degrees. In this case, a part of the conditioned air blown out from the air outlet (16) flows along the outer inclined surface (14a),
Peeling occurs at the boundary position with the second inclined surface, which also significantly reduces stains on the ceiling surface.

In addition, in each of the above embodiments, the present invention
The present invention is applied to a so-called ceiling-mounted four-way blow-type air conditioner (1) which includes a turbofan and blows conditioned air in four directions. However, the present invention is not limited to this. Can be applied to the so-called two-way ceiling-buried type air conditioner that blows air.

[0069]

As described above, according to the ceiling embedded type air conditioner according to the first aspect of the present invention, the lowermost part of the outlet forming member on the side where the conditioned air is guided from the outlet (16). Is arranged at a distance of 45 mm or more downward from the ceiling surface (70), so that the air-conditioning air from the air outlet (16) of the air conditioner (1) becomes as parallel as possible to the ceiling surface as much as possible during cooling operation, for example. Even when blown out like this, the flow of the conditioned air does not flow along the ceiling surface,
It is possible to prevent the occurrence of ceiling dirt in a so-called horizontal blowing state.

According to the second aspect of the present invention, the air conditioner
By providing the spacer member (72) for adjusting the vertical distance between the panel member (14) and the ceiling surface (70) of (1), the effect of the invention of claim 1 can be sufficiently obtained, In situations where the need for dirt prevention is low, the air conditioner (1) and ceiling
(70) can enhance the sense of unity and improve the appearance.

According to the third aspect of the present invention, the air outlet forming member on the side where the conditioned air is guided is provided with an external inclined surface (14a) so as to approach the ceiling surface toward the outer peripheral side of the air conditioner body (10).
By forming the outer inclined surface (14a) at a relatively large inclination, the Coanda effect on the conditioned air from the air outlet (16) is weakened, and the effect of the first aspect of the present invention can be enhanced.

According to the invention of claim 4, the boundary position between the air conditioner main body (10) and the ceiling surface (70) and the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18). The effect similar to that of the third aspect can be obtained by making the angle of inclination of the line connecting to the ceiling surface (70) relatively large.

According to the fifth aspect of the present invention, the first inclined surface (14)
By separating the airflow flowing along a) at the boundary position with the second inclined surface, the effect of the invention of claim 1 can be enhanced.

Next, according to the ceiling-embedded type air conditioner of the sixth aspect of the present invention, the air outlet forming member on the side where the conditioned air is guided from the air outlet (16) is provided with the air outlet (16). An external inclined surface (14a) is formed so as to approach the ceiling surface from the edge toward the outer peripheral side of the air conditioner body (10), and the external inclined surface (14a)
By relatively inclining the airflow, even in a so-called horizontal blowout state, the Coanda effect between the blowout airflow from the blowout port (16) and the external inclined surface (14a) is reduced, and the blown airflow is reduced to the ceiling surface. The flow along (70) can be suppressed, thereby greatly reducing the dirt on the ceiling surface.

According to the invention of claim 7, the boundary position between the air conditioner main body (10) and the ceiling surface (70) and the guide means (18).
By making the inclination angle of the line connecting the lowermost part of the outlet forming member on the side where the blowing direction is guided with respect to the ceiling surface (70) relatively large, the same effect as the invention of claim 6 can be obtained.

Further, according to the invention of claim 8, the outlet port
From (16) to the outlet forming member on the side where the conditioned air is guided,
By providing the first inclined surface (14a) that is inclined relatively slowly and the second inclined surface that is inclined relatively steeply, in a so-called horizontal blowing state, one of the airflows blown out from the outlet (16) is reduced. Flow along the first inclined surface (14a), and to separate this air flow at the boundary position with the second inclined surface,
This prevents the airflow from reaching the ceiling surface (70), and can greatly reduce dirt on the ceiling surface.

According to the ninth aspect of the present invention, the first inclined surface (14)
By making a) a sufficient length along the direction in which the air flows, the effect of the invention of claim 5 or 8 can be sufficiently obtained.

According to the tenth aspect of the present invention, the edge of the air outlet (16) is sufficiently separated in the horizontal direction from the boundary position with the ceiling surface (70), so that the airflow flowing along the air outlet forming member Down most of the ceiling surface (70) before reaching the ceiling surface (70).
Can be greatly reduced.

Next, according to the ceiling embedded type air conditioner according to the eleventh aspect of the present invention, the edge of the air outlet (16) on the side where the conditioned air is guided is positioned from the boundary position with the ceiling surface (70). Even if the airflow from the air outlet (16) flows upward along the air outlet forming member in the so-called horizontal air outlet state by sufficiently separating in the horizontal direction, most of the air flow flows to the ceiling surface (70). It can be lowered before reaching, and the dirt on the ceiling surface (70) can be greatly reduced.

According to the twelfth aspect of the present invention, by arranging the rectifying member (19) at the outlet (16), the flow of the conditioned air is adjusted, and the initial velocity of the outlet air at both sides of the outlet (16) is adjusted. Of the ceiling can be suppressed, and thereby the ceiling dirt can be more effectively suppressed.

According to the thirteenth aspect of the present invention, since the horizontal blades (18) capable of changing the blowing direction of the conditioned air up and down are provided, the flow of the air blown out from the blowing outlet (16) is relatively reduced during the heating operation. On the other hand, the air conditioning efficiency can be increased in each operation state by setting the air supply to the horizontal blow state during the cooling operation.

According to the fourteenth aspect, the horizontal blade (18)
The blowout air can be effectively rectified by the rectifying plate (19) provided above, and according to the invention of claim 15, the rectifying plate (1)
By arranging 9) over the entire longitudinal direction of the horizontal blade (18), the flow of the blown air can be adjusted more effectively and entirely.

According to the sixteenth to eighteenth aspects, the effects of the present invention can be sufficiently obtained.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view from the side of an air conditioner according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view from below of an air conditioner embedded in a ceiling.

FIG. 3 is an enlarged view showing a detailed configuration of an air outlet.

FIG. 4 is a diagram corresponding to FIG. 3 when the blowing direction of the conditioned air is downward.

FIG. 5 is a perspective view of a horizontal blade.

FIG. 6 is a diagram corresponding to FIG. 3 according to a modification in which a protruding plate is provided at the upper edge of the air outlet.

FIG. 7 is a diagram corresponding to FIG. 3 according to the second embodiment.

FIG. 8 is a diagram corresponding to FIG. 5 according to the second embodiment.

FIG. 9 is an explanatory diagram showing a state of a blown airflow of conditioned air from an air outlet when the conventional air conditioner is viewed from the side.

[Explanation of symbols]

 (1) Air conditioner (10) Casing (air conditioner body) (11) Main body casing (14) Decorative panel (panel member) (14a) External inclined surface (15) Air inlet (16) Air outlet (18) ) Horizontal blade (19) Rectifier plate (20) Fan (30) Heat exchanger (70) Ceiling plate (72) Spacer member

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuhiko Yamamoto 1304 Kanaokacho, Sakai City, Osaka Daikin Industries Inside Kanaoka Plant of Sakai Seisakusho Co., Ltd. (72) Inventor Yasuyuki Yasuyuki 1304 Kanaokacho, Sakai City, Osaka Daikin Industries, Ltd. F-term in Sakai Plant Kanaoka factory (reference) 3L051 BG06 BH04 3L080 BE11

Claims (18)

[Claims] An air outlet (16) buried in a ceiling surface (70) for blowing air-conditioned air toward an indoor space is provided, and the air outlet (16) guides a blowing direction of the air-conditioned air. In the ceiling embedded type air conditioner provided with a possible guide means (18), the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18) is below the ceiling surface (70). 45mm
An air conditioner embedded in a ceiling, wherein the air conditioner is disposed so as to be separated from the air conditioner. 2. The panel member (1) according to claim 1, wherein the air conditioner main body (10) is fixed to a ceiling surface and provided with an air outlet (16) so as to face an indoor space.
4), wherein a spacer member (72) for adjusting a vertical distance between the panel member (14) and the ceiling surface (70) is provided. apparatus. 3. The air-conditioning apparatus main body (10) according to claim 1, wherein the air outlet direction guide member (18) guides the air outlet direction from the edge of the air outlet (16). An outward inclined surface (14a) is formed to incline toward the ceiling surface toward the side, and the external inclined surface (14a) has an inclination angle with respect to the ceiling surface at least in the vicinity of an edge of the outlet (16). A ceiling-embedded air conditioner characterized by being at least 10 degrees. 4. The air conditioner main body (10) and the boundary position between the ceiling surface (70) and the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18) according to claim 1, An embedded ceiling type air conditioner, wherein an angle of inclination of a connecting line with respect to a ceiling surface (70) is 10 degrees or more. 5. The air conditioner according to claim 1, wherein the guide means (18) approaches the ceiling surface from the lowermost part of the air outlet forming member on the side where the blowing direction is guided toward the outer peripheral side of the air conditioner body (10). The first inclined surface (14
a) and a second inclined surface following the first inclined surface (14a), the inclination angle of the first inclined surface (14a) with respect to the ceiling surface (70) is 12 degrees or less, and the second inclined surface An embedded ceiling air conditioner, characterized in that the inclination angle of the inclined surface with respect to the ceiling surface (70) exceeds 12 degrees. 6. An air outlet (16) buried in a ceiling surface (70) for blowing air-conditioned air toward a room space, and guides a blowing direction of the air-conditioned air to the air outlet (16). In the ceiling-embedded air conditioner provided with a possible guide means (18), an edge of an outlet (16) is provided on an outlet forming member on the side where the blowing direction is guided by the guide means (18). An outer inclined surface (14a) that is inclined from the portion toward the outer peripheral side of the air conditioner body (10) so as to approach the ceiling surface is formed, and the outer inclined surface (14a) is at least the outlet (16). An embedded ceiling air conditioner, wherein an inclination angle with respect to a ceiling surface near an edge is set to 10 degrees or more. 7. An air outlet (16) which is embedded in a ceiling surface (70) and blows out conditioned air toward the indoor space is provided, and guides a blowing direction of the conditioned air to the air outlet (16). In a ceiling-embedded air conditioner provided with a possible guide means (18), a boundary position of the air conditioner body (10) and the ceiling surface (70) and a side in which the blowing direction is guided by the guide means (18). An angle of inclination of a line connecting the lowermost part of the outlet forming member to the ceiling surface (70) is 10 degrees or more. 8. An air outlet (16) buried in a ceiling surface (70) for blowing air-conditioned air toward a room space, and guides a blowing direction of the air-conditioned air to the air outlet (16). In the ceiling embedded type air conditioner provided with a possible guide means (18), the air conditioner body (10) starts from the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18). First inclined surface inclined toward the ceiling surface toward the outer peripheral side of the vehicle
(14a) and a second inclined surface following the first inclined surface (14a), wherein an inclination angle of the first inclined surface (14a) with respect to the ceiling surface (70) is 12 degrees or less, and The ceiling-mounted air conditioner, wherein the angle of inclination of the two inclined surfaces with respect to the ceiling surface (70) exceeds 12 degrees. 9. The air outlet forming member according to claim 5, wherein the first inclined surface (14a) and the second
The embedded ceiling air conditioner, wherein a distance to a boundary position of the inclined surface is 70 mm or more. 10. The air conditioner main body (10) according to any one of claims 1 or 3 to 9, wherein the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18) is formed. Ceiling surface (7
An air conditioner embedded in a ceiling, which is separated from the boundary position with 0) by 75 mm or more in the horizontal direction. 11. An air outlet (16) which is embedded in a ceiling surface (70) and blows out conditioned air toward a room space, and guides a blowing direction of the conditioned air to the air outlet (16). In the ceiling-embedded air conditioner provided with a possible guide means (18), the lowermost part of the outlet forming member on the side where the blowing direction is guided by the guide means (18) is an air conditioner body (10 ) And the ceiling surface (70), the ceiling-mounted type air conditioner characterized by being horizontally separated by 75 mm or more from the boundary position. 12. The air outlet (16) according to any one of claims 1 to 11, wherein a straightening member (19) for regulating a flow of the conditioned air in a longitudinal direction of the air outlet (16) is provided. A ceiling-embedded air conditioner, characterized in that: 13. The air-conditioning system according to claim 1, wherein the guide means (18) is a horizontal blade capable of changing a blowing direction of the conditioned air up and down. apparatus. 14. The ceiling according to claim 13, wherein a rectifying plate (19) for restricting the flow of the conditioned air in the longitudinal direction is provided on the horizontal blade (18). Embedded air conditioner. 15. The horizontal blade (18) according to claim 14, wherein the horizontal blade (18) is formed of an elongated plate member that curves in the width direction, and the straightening plate (19) curves inside the horizontal blade (18). A ceiling-embedded air-conditioning apparatus characterized in that the air-conditioning apparatus is disposed at predetermined intervals over the entire surface in the longitudinal direction. 16. The air velocity of the air flow near the center of the air outlet (16) according to any one of claims 1 to 15,
An embedded ceiling type air conditioner, which is not less than m / sec and not more than about 6 m / sec. 17. The ceiling-mounted air conditioner according to claim 1, wherein a running distance of the conditioned air reaching the outlet (16) is 30 mm or more. 18. The air conditioner main body (10) according to any one of claims 1 to 15, wherein the position of the air flow blown out from the outlet (16) that finally separates from the air conditioner main body (10) is determined. An in-ceiling type air conditioner characterized by being 90 mm or more away from a boundary position between 10) and a ceiling surface (70).