JP2002061944A - Decoration panel of air conditioner, supply opening unit, and air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a ceiling surface (70) from being contaminated when blowing horizontally by improving the shape of a horizontal blade (18) being provided at an air supply opening (16) of an air conditioner. SOLUTION: When the horizontal blade (18) for adjusting the blowing direction of conditioned air is provided at the air supply opening (16) of the air conditioner, airflow upstream side end part at both end parts in the longitudinal direction of the horizontal blade (18) is cut, thus forming an opening (18c) through which the conditioned air passes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative panel of an air conditioner, an outlet unit, and an air conditioner.
In particular, the present invention relates to a structure of a horizontal blade provided at an air outlet for adjusting a blowing direction of conditioned air.

[0002]

2. Description of the Related Art Conventionally, for example, a horizontal blade capable of changing a blowing direction of conditioned air up and down is provided at an air outlet of an air conditioner of a ceiling embedded type or a duct type.
Then, while the blowing 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.

[0003] However, in the above horizontal blowing state,
Particulate dust contained in the conditioned air that is blown out 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.
The air flow blown out from (a) has a substantially V shape when viewed along the flow. Here, at the central portion in the longitudinal direction of the air outlet (a), the negative pressure increases because the air blowing speed is high, but because the flow speed is high and the airflow is strong, the air is close to the ceiling near the air outlet ( b) Does not adhere to.

On the other hand, the air from the end of the air outlet (a) blows at a low speed due to the low flow velocity, and is attached to the ceiling surface (b) near the outlet (a) by the negative pressure at the center. .
At this time, the dust in the slow airflow blown from the end of the air outlet (a) (the dust contained in the slow airflow from the end of the air outlet (a), and the slow airflow ) Are attached to the ceiling surface (b). For this reason, the dirt on the ceiling is substantially V-shaped and is formed on both sides of the air outlet (a) so as to move from both ends of the air outlet (a) toward the center as the distance from the air outlet (a) increases. Close area
(D) (see FIG. 2).

In order to avoid such stains, Japanese Patent Laid-Open Publication No. Hei 3-160266 discloses that horizontal wings are provided with detachable auxiliary fins for shifting the blowing direction to the ceiling side, and the auxiliary fins are attached to the ceiling dirt. There has been proposed a technique of attaching / detaching in accordance with the tendency of occurrence of the problem. In the air conditioner described in this publication, 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 need for dirt prevention, such as hospitals, the auxiliary fins are removed and horizontal blades are removed. On the other hand, auxiliary fins are mounted in an environment where ceiling dirt is unlikely to occur or where dirt prevention is not required so that horizontal blowing can be performed.

[0006]

However, even if the auxiliary fins are provided as in the above-mentioned conventional example, the auxiliary fins must be removed in an environment where ceiling dirt is likely to be generated. Since the conditioned air is always blown downward from the outlet, not only does air conditioning efficiency drop during the cooling operation, which should normally be done with horizontal blowing, but also the discomfort caused by the cool air being blown directly to the people in the room (So-called draft feeling) also occurs.

[0007] The present invention has been made in view of such problems, and an object of the present invention is to improve the shape of horizontal blades provided at an air outlet, thereby improving the shape of the horizontal blades.
An object of the present invention is to make it possible to set an appropriate blowing direction in accordance with an operation state of an air conditioner, and also to prevent dirt on a ceiling surface.

[0008]

According to the present invention, the shape of the horizontal blades is adjusted so that the direction of air-conditioning air blowing from both longitudinal sides of the air outlet is lower than the direction of air blowing at the central portion in the longitudinal direction. It is an improvement.

Specifically, a solution taken by the present invention is to provide an air outlet (16) for blowing out conditioned air from a ceiling surface toward a room space, and to supply the conditioned air to the air outlet (16). A decorative panel and an air outlet unit of an air conditioner provided with a horizontal blade (18) for adjusting the direction, an air conditioner on which the decorative panel (14) is mounted along a ceiling surface, and the air outlet unit (51 ) Is attached to the ceiling surface and the air conditioner body (53) via the air duct (52).
It is assumed that the air conditioner is connected to the air conditioner.

The horizontal blade (18) has an opening through which air-conditioned air passes at both ends in the longitudinal direction on the upstream side of the airflow.
(18c).

In this configuration, the opening (18c) can be formed by a cutout formed at the airflow upstream end at both ends in the longitudinal direction of the horizontal blade (18).

The horizontal blade (18) is formed in a three-dimensionally twisted shape such that the upstream edge of the airflow gradually rises from the center in the longitudinal direction toward both ends. Portions corresponding to the openings (18c) may be provided at both ends of (18).

[0013] Further, the airflow upstream edge of the horizontal blade (18) is positioned at both ends of the horizontal blade at a position closer to both ends than the center in the longitudinal direction.
The portion corresponding to the opening (18c) may be provided by forming so that the airflow flowing toward the negative pressure surface side of (18) increases.

With the above construction, the air outlet (16)
When air-conditioning air is blown out from the room into the room, during air-conditioning operation, the air outlet (16) whose blowing speed is relatively high
In the central part of the air-conditioning air is guided in a direction that is almost horizontal, while the air outlet that blows out at a relatively low speed
At both longitudinal ends of (16), some of the conditioned air
It is blown downward from the center through the openings (18c) at both ends of (18). For this reason, since the airflow which flows to the suction side of the horizontal blade (18) at both ends of the horizontal blade (18) increases, the conditioned air having a low initial velocity of the blown air at both ends of the air outlet (16) is removed from the ceiling surface. The flow rate flowing along is reduced. During the heating operation, the conditioned air is blown downward from the entire air outlet (16) into the room by adjusting the horizontal blades (18) downward.

In the above construction, the horizontal blade (18)
Has a shape that is curved toward the wall surface on one side in the short direction of the air outlet (16) as it is located from the upstream side to the downstream side of the blown airflow (a shape that is convex downward), It is preferable that the wall surface on one side of the outlet (16) is formed so as to be curved in the same direction as the horizontal blade (18). In addition,
The wall surface on one side is not necessarily limited to a curved shape, but may be a shape along the horizontal blade (18).
Further, the wall surface on the other side can have a shape that is more gently curved than the wall surface on the one side, or can have a straight shape.

With this configuration, the horizontal blade (18)
At the both ends, the horizontal blade (18) is configured so that the airflow (downward airflow on the back side (airflow upstream end edge)) flowing toward the suction side of the horizontal blade (18) is increased.
The horizontal blowout is reliably performed at the center of (18), and the air is reliably blown downward at both ends.

Further, in the air conditioner of the present invention,
When the air outlet (16) has an enlarged portion (16L) (see FIG. 9) in which the longitudinal opening length is increased at a portion facing the indoor space, the opening (18c) of the horizontal blade (18) is connected. , Air outlet (16)
It may be formed in a region corresponding to the enlarged portion (16L). This is the case when the airflow upstream edge is formed so as to gradually rise from the center in the longitudinal direction of the horizontal blade (18) toward both ends, or the airflow flowing on the negative pressure surface side of the horizontal blade (18) is The same applies to the case where the airflow upstream edge of the horizontal blade (18) is formed so as to be increased, and these portions are formed in areas corresponding to the enlarged portion (16L) of the air outlet (16), respectively. Good to do.

As described above, the enlarged portion (16L) is provided at the air outlet (16).
When there is an opening (18c) or a configuration corresponding to the opening, the blown air tends to stay at both ends of the horizontal blade (18), but the opening (1
8c) having a length corresponding to the enlarged portion (16L) of the air outlet (16), the airflow flowing along the horizontal blade (18) is downward at both ends in the longitudinal direction, so that the horizontal blade ( The amount of air staying on the inner surface side of 18) is reduced.

[0019]

According to the above-described means, during the cooling operation in which horizontal discharge of the conditioned air is required, the air outlet is required.
(16) While air is blown out horizontally at the center in the longitudinal direction, a part of the air is blown downward at both ends in the longitudinal direction, so that air from both ends in the longitudinal direction hardly flows along the ceiling. Become. Therefore, it is possible to prevent the ceiling surface from being stained, and it is possible to secure horizontal blowing as a whole. For this reason, it is possible to avoid the generation of dirt on the ceiling surface while ensuring the blowing direction according to the operation state of the air conditioner.

The openings (18c) at both ends in the longitudinal direction of the horizontal blade (18) may be cut out, or the horizontal blade (18) may be cut from the center in the longitudinal direction to both ends by the airflow upstream edge. Is formed so that it gradually rises, it is possible to prevent ceiling dirt with a simple configuration. Furthermore, by appropriately setting the size of the opening (18c) and the like, it becomes possible to blow conditioned air downward from both ends of the air outlet (16) at an appropriate ratio, and as a whole, horizontal blowing is performed. It is possible to easily realize a configuration that can reliably prevent ceiling dirt while performing.

When a conventional horizontal blade is used, the air flow tends to separate at the end of the horizontal blade, and as a result, the surrounding warm air may be entrained and condensed on the horizontal blade. When the airflow upstream edge is formed so as to gradually rise from the center in the longitudinal direction to both ends, the traveling direction of air flowing in the direction of the air outlet (16) and the horizontal blades
Since the directions of both ends of (18) are almost the same, peeling is less likely to occur and dew condensation is less likely to occur.

When there is an enlarged portion (16L) at the longitudinal end of the air outlet (16), an opening (18) of the horizontal blade (18) is provided.
c) is formed in a region corresponding to the enlarged portion (16L), since the amount of air stagnating on the inner surface side of the horizontal blade (18) at both ends in the longitudinal direction of the horizontal blade (18) is reduced, horizontal blowing is performed. , And a configuration that can prevent ceiling dirt can be realized.

[0023]

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

FIG. 1 is a longitudinal sectional view showing the configuration of an air conditioner (1) embedded in a ceiling according to the present embodiment. As shown in the figure, this air conditioner (1) has a fan (20) and a heat exchanger (30) housed in a casing (10), and has an opening in a ceiling plate (ceiling surface) (70). It is embedded in the opening for installation (71), and is installed in the space above the ceiling.

The casing (10) includes a box-shaped main casing (11) that opens downward and a main casing (11).
A decorative panel (14) that covers the bottom opening of (11), and is suspended and fixed to an upper beam or the like by a suspender (not shown). Specifically, the main body casing (11) has a top plate (12) formed by cutting out four corners of a square in a chamfered shape and having an octagonal shape (not shown), and extends downward from an outer edge portion of the top plate (12). And a side plate (13).
The decorative panel (14) has a substantially square plate shape and is attached to the lower end of the side plate (13) of the main casing (11). The decorative panel (14) is mounted along the ceiling plate (70) such that the peripheral edge thereof abuts on the lower surface of the ceiling plate (70).

As shown in FIG. 2, which is a perspective view of the state in which the air conditioner (1) is installed on the ceiling, the air is substantially open at the center of the decorative panel (14) so as to open in a square shape. A suction port (15) is formed, and an elongated rectangular shape (4) is formed along each of the four sides of the air suction port (15).
Two air outlets (16) are formed. The air suction port (15) is provided over its entire surface with an air filter (17) for removing suspended matters such as particulate dust contained in room air, and the air filter (17) Is entirely supported by a grid-like filter cover.

The air outlet (16) is provided with horizontal blades (18) capable of adjusting the direction of blowing of the conditioned air up and down. Specifically, as shown in FIGS. 3 and 4 in an enlarged manner, an outer guide surface which is a side wall on the outer peripheral side of the panel (right side in the drawing) of an air passage communicating with the air outlet (16) of the decorative panel (14) is A first outer guide surface (16a) extending substantially vertically downward;
A second slanting obliquely downward toward the outer peripheral side of the panel from the lower end of the first outer guide surface (16a) to the lower surface of the decorative panel (14).
Outer guide surface (16b) and both outer guide surfaces (16a, 1
6b) are smoothly connected to each other.

The second outer guide surface (16b) is provided with an air outlet (16).
The inclination of the central portion (16b-c) located at the central portion in the longitudinal direction of the air outlet (16) is set to be relatively large (about 60 degrees), while both end portions ( 16b-s) is set relatively small (about 30 degrees). Second
The outer guide surface (16b) extends from the center (16b-c) to both ends (16b-c).
The slope gradually changes toward s). As shown in FIG. 5, which is a perspective view of the air outlet 16 as viewed from below, the lower edge (16b-e) of the second outer guide surface (16b) is formed in an arc shape.

On the other hand, as shown in FIGS. 3 and 4, the inner guide surface, which is the side wall on the inner peripheral side (left side in the figure) of the air passage communicating with the air outlet (16), is substantially vertically downward. A first inner guide surface (16c) extending from the lower end of the first inner guide surface (16c) and a second inner guide surface (16d) gently inclined obliquely downward from the lower end of the first inner guide surface (16c). The inner guide surfaces (16c, 16d) are smoothly connected to each other.

The outer guide surfaces (16a, 16b) are formed on the outer member (14a) of the decorative panel (14), and the inner guide surfaces (16c, 16d) are formed on the inner member (14b) of the decorative panel (14). ing. In addition, the outer member (14) located on the downstream side of the airflow of the horizontal blade (18)
The outer guide surfaces (16a, 16b) of (a) are curved almost in the same manner as the cross-sectional shape of the horizontal blade (18) (not limited to the curved shape,
On the other hand, the inner guide surface (16c, 16d) of the inner member (14b) located on the upstream side of the airflow of the horizontal blade (18) may be the outer member (14a). Outside guideway (1
6a, 16b) so as to extend vertically downward, and the air outlet (16) is provided with these outer guide surfaces (16a, 16b).
b) and the inner guide surfaces (16c, 16d).
The shape of the inner guide surfaces (16c, 16d) can be arbitrarily selected.

The two opposing wall surfaces (the outer guide surfaces (16a, 16b) and the inner guide surface (16
c, 16d)) is formed over the entire length of the air outlet (16) in the longitudinal direction (the direction perpendicular to the plane of the paper), and has both wall surfaces (16, 16d).
a, 16b) and (16c, 16d) have an air passage (1
It has a function of a runway that changes the direction of the conditioned air flow while adjusting it toward 6).

The horizontal blade (18) is a long plate member as shown in FIG. 6, and is slightly curved in the width direction. At both ends in the longitudinal direction of the horizontal blade (18),
Arms (18a, 18a) protruding from the inner surface side of the horizontal blade (18) are provided integrally, and an end of each arm (18a) is provided along the longitudinal direction of the horizontal blade (18). A connection pin (18b, 18b) is formed extending in the direction. The horizontal blade (18) is attached to the air outlet (16) so as to be swingable about the connecting pins (18b, 18b). Specifically, the horizontal pin (18) is connected to the connecting pin (1) by a motor (not shown).
8b, 18b).
In the above configuration, when the conditioned air is blown out most downward, the horizontal blades (18) are set downward as shown in FIG. 4, while when the so-called horizontal blowout state is set, the horizontal blades (18) are blown out as shown in FIG. Set 18) upward.

As a feature of this embodiment, a notch (18c) is formed at the longitudinal end of the horizontal blade (18) at the airflow upstream end as an opening through which conditioned air passes. The notch (18c) has a length approximately one-fourth of the length of the horizontal blade (18) in the longitudinal direction, and is formed at the airflow upstream edge at both ends in the longitudinal direction. By providing the notch (18c), the horizontal blade (18) is formed in a shape in which the width of both ends (18e) is smaller than that of the central portion (18d) by about two thirds. The specific dimensions of the horizontal blade (18) are, for example,
Total length is about 480mm, width (width of central part (18d)) is about 37mm
Width of both ends (18e) is about 25mm, notch (18c)
Can be about 120 mm in length.

On the other hand, the fan (20) is
It is provided at a substantially central position inside (11). This fan has a blade between the shroud (21) and the hub (22).
This is a so-called turbo fan in which (23) is held. The top plate (1) of the main casing (11) is attached to the hub (22) of the fan (20).
A drive shaft (26) of a fan motor (25) attached to 2) is inserted and fixed, and the fan (20) is rotationally driven by the driving force of the fan motor (25). ), The air sucked in from below is sent radially to the side. An air inlet is located below the fan (20).
The air that has flowed into the casing (10) from (15) is passed through the fan (20).
A bell mouth (27) is provided to guide the user.

The heat exchanger (30) is a so-called cross made up of a number of plate-like fins (31) provided in parallel with each other and a heat transfer tube (32) provided through the fins (31). Fin heat exchanger. The heat exchanger (30) is formed in a tubular shape having a rectangular shape in plan view so as to surround the fan (20), and is connected to an outdoor unit via a refrigerant pipe (not shown). The heat exchanger (30) serves as an evaporator during cooling operation,
In the heating operation, it functions as a condenser and regulates the temperature state of the air sent from the fan (20). And
A drain pan (33) for receiving drain water is disposed below the heat exchanger (30).

With the above configuration, the air inlet (1) of the decorative panel (14) is provided in the main casing (11) of the air conditioner (1).
5) From air filter (17), bell mouth (27), fan (20)
Further, an air flow passage (W) extending to the air outlet (16) through the heat exchanger (30) is formed. And when the air conditioner is running,
When (20) is driven, the air filter (1
The indoor air taken into the casing (10) through the airflow passage (W) through the bell mouth (27), the fan (20) and the heat exchanger (30) in this order through the heat exchanger (10). In 30), heat is exchanged with the refrigerant to control the temperature (cooling in cooling operation, heating in heating operation), and then blown out as air-conditioned air from the air outlet (16) into the indoor space. Thus, air conditioning of the indoor space is performed.

Here, first, when there is a request to blow out the conditioned air relatively downward, such as during a heating operation,
As shown in FIG. 4, the horizontal blades (18) are directed substantially vertically downward, and the conditioned air is supplied to the side wall (1) on the outer peripheral side of the panel of the air outlet (16).
6a, 16b) and the side wall (16c, 16d) on the inner peripheral side of the panel is blown downward along the horizontal blade (18) as shown by the arrow S in the figure.

On the other hand, when a so-called horizontal blow-out state is established during a cooling operation or the like, as shown in FIG. 3, the horizontal blade (18) is turned upward to rotate the inner surface (1) of the horizontal blade (18).
8f) is made substantially parallel to the central portion (16b-c) of the second outer guide surface (16b) of the air outlet (16). In this way, the conditioned air flows in a curved manner along the central portion (18d) of the horizontal blade (18) at the central portion of the air outlet (16), and the direction of the streamline changes smoothly and smoothly. Then, as shown by an arrow S1 in the figure, a second outer guide surface on the outer peripheral side of the panel of the air outlet (16).
(16b) and between the horizontal blade (18), the air outlet (16)
From the ceiling plate (70) (for example, the angle formed with the lower surface of the ceiling plate (70) is approximately 30 ° to 35 °).

At both ends of the air outlet (16), part of the conditioned air flowing downward through the air flow passage (W) is partially cut out (18c) at both ends (18e) of the horizontal blade (18). )
It is blown downward as shown by the arrow S2 in FIG. For this reason, at both ends of the air outlet (16), the flow rate of the air flowing in the direction of the arrow S1 decreases, and it becomes difficult for the air to flow along the ceiling surface. In addition, since both ends (16b-s) of the second outer guide surface (16b) are formed to have a shape (a shape with a small inclination) that is higher than the center portion (16b-c), both ends of the air outlet (16) must The blown air is less likely to flow in the direction of arrow S1.

Therefore, conventionally, for example, in an air conditioner of a ceiling-embedded type, in a portion where the air blowing speed is low (both ends of the air outlet (16)), the air flow is increased by the ceiling plate (7).
0) because it easily adheres to the lower surface of the horizontal blade (18) during cooling operation.
When the blowing direction of the conditioned air is relatively directed upward, for example, by about 30 to 35 ° with respect to the lower surface of the ceiling plate (70), the air flow flows along the lower surface of the ceiling plate (70), In the area (D) shown by the phantom line in FIG. 2, ceiling dirt is generated, and the ceiling dirt is distributed almost in a V-shape for each air outlet. According to the device (1), the air blown out from both ends of the air outlet (16) is less likely to flow along the lower surface of the ceiling plate (70), particularly during a cooling operation in which horizontal blowing of the conditioned air is required. Therefore, even if the blowing direction of the conditioned air from the air outlet (16) is brought close to the lower surface of the ceiling plate (70) by about 30 to 35 ° with the horizontal blades (18) at the center of the air outlet, for example, The generation of dirt can be prevented.

Further, in this embodiment, the notch (18c) of the horizontal blade (18) is formed only in a region of about one quarter of both ends (18d) of the horizontal blade (18). As a whole, horizontal blowing can be sufficiently satisfied while preventing ceiling dirt.

Therefore, the air conditioner of this embodiment
According to (1), especially in the cooling operation in which horizontal blowing of the conditioned air is required, the direction of the conditioned air blowing can be made closer to the horizontal direction than before, while preventing ceiling dirt. Thereby, the air conditioning efficiency can be ensured and the sense of discomfort (draft feeling) of the indoor occupants can be eliminated.

[0043]

Other Embodiments of the Invention The present invention is not limited to the above embodiment, but includes other various embodiments.

For example, in the above embodiment, the horizontal blade (18)
Notches (18c) are formed at both ends (18e) as openings, but through holes or the like may be provided in the horizontal blades (18) instead of the notches (18c). It suffices if air is blown downward from both ends of the air outlet (16).

The shape and dimensions of the horizontal blade (18) and the like,
The shape and dimensions of the notch (opening) (18c) are merely examples, and it is of course possible to appropriately change the shape and size according to the shape of the embodiment.

When the opening (18c) is a notch, the notch (18c) is shaped, for example, as shown in FIGS. 7 (a) to 7 (c) to show the end of the horizontal blade (18). be able to.
FIG. 7 (a) shows an example in which the airflow upstream edges at both ends in the longitudinal direction of the horizontal blade (18) are formed in an arc shape, and FIG. 7 (b) shows the airflow upstream edges at a straight angle. Example shown in FIG.
FIG. 7C shows an example in which the upstream edge of the airflow is formed in an arc shape opposite to that of FIG.

Further, instead of the opening (18c), the end of the horizontal blade (18) is connected to the horizontal blade (18) as shown in FIG.
The shape may be three-dimensionally twisted so that the airflow upstream edge gradually rises from the center in the longitudinal direction toward both ends. In this case, since it is difficult for the air to peel off at the end of the horizontal blade (18), there is also an advantage that it is difficult for the surrounding warm air to be drawn into the end of the horizontal blade (18), and dew condensation hardly occurs.

As described above, in the present invention, the horizontal blade
(18), at both ends rather than the longitudinal center portion, the airflow flowing to the suction side of the horizontal blade (18) (the back side of the horizontal blade (18) (the inner guide surface (16c, 16d) Any air flow upstream edge may be formed so as to increase the downward air flow (see FIG. 3 (S2)) on the side, that is, inside the blowing direction.

In the above-described embodiment, the present invention is applied to the so-called ceiling-mounted four-way blow-type air conditioner (1) which includes a turbofan and blows out conditioned air in four directions. However, the present invention is not limited to this. Instead, for example, the present invention can also be applied to a so-called ceiling embedded two-way blow type air conditioner that blows out conditioned air in two directions.

Further, the present invention can be applied not only to a ceiling-mounted type air conditioner but also to a duct type air conditioner. As shown in FIG. 8, a duct type air conditioner (50)
Is the outlet unit (51) attached to the ceiling plate (70)
This is an air conditioner connected to an air conditioner body (53) installed on the roof of a building or the like via a ventilation duct (52). In the air outlet unit (51) of the air conditioner (50) as well, for example, as shown in FIGS. By providing the opening (18c) as shown in (1), the same effect as in the above embodiment can be obtained.

As shown in FIG. 9, for example, in a ceiling-mounted type air conditioner, piping and an electrical component box are arranged at corners in a main body casing (11), while a decorative panel (1) is provided.
In case 4), it is necessary to make the shape of the blow-out openings the same for all four for the reason of the appearance, so when the opening length in the longitudinal direction of the air passage is different between the body casing (11) side and the decorative panel (14) side There is. In such a case, the air outlet (16) has, at its longitudinal end, an enlarged portion that expands in the longitudinal direction of the air outlet (16) at a portion facing the indoor space with the opening length of the air passage.
(16L) will be formed. The length of the enlarged portion (16L) varies depending on the air outlet.

Therefore, an opening (1) such as a notch formed at the airflow upstream end at both ends in the longitudinal direction of the horizontal blade (18).
8c) or the opening (18c) corresponds to the air outlet
It is preferable to form the length corresponding to the enlarged portion (16L) of (16).
If there is no opening (18c) or if it is short, the horizontal blade (1
Blowing air tends to stay at both ends of (8), but if it corresponds to the enlarged portion (16L), the airflow flowing along the horizontal blade (18) will be downward at both ends in the longitudinal direction, so horizontal The amount of air staying on the inner surface side of the blade (18) can be reduced,
Ceiling dirt can be prevented while performing horizontal blowing. This is the same for the duct type air conditioner (50).

Further, in the above embodiment, the air outlet (16)
The inclination of the second outer guide surface (16b) is set so that both ends (16b-s) are closer to a vertical angle than the center portion (16b-c), but it is not necessarily formed in this manner. It is not necessary, and the second outer guide surface (16b) may be aligned with the inclination of the central portion (16b-c) of the above embodiment over the entire area of the air outlet (16), for example.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an embedded ceiling air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view of the air conditioner installed on the ceiling as viewed from below.

FIG. 3 is an enlarged structural view of an air outlet, showing a state in which a blowing direction of conditioned air is set to horizontal blowing.

FIG. 4 is a diagram showing a state in which the blowing direction of the conditioned air is set to a downward blowing in FIG.

FIG. 5 is a perspective view of the air outlet viewed from below.

FIG. 6 is a perspective view of a horizontal blade.

FIGS. 7A to 7D are perspective views showing the shape of the opening of the horizontal blade.

FIG. 8 is a schematic configuration diagram of a duct type air conditioner.

FIG. 9 is a partial perspective view when an enlarged portion is provided at an air outlet.

FIG. 10 is an explanatory diagram showing a state of a blown airflow of conditioned air from an air outlet when a conventional air conditioner is viewed from a side.

[Explanation of symbols]

 (1) Air conditioner (10) Casing (11) Main casing (14) Decorative panel (15) Air inlet (16) Air outlet (18) Horizontal blade (18c) Notch (opening) (20) Fan (30) Heat exchanger (50) Air conditioner (51) Air outlet unit (52) Ventilation duct (53) Air conditioner body (70) Ceiling panel

Continued on the front page (72) Inventor Taku Hirakawa 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries, Ltd.Sakai Seisakusho Kanaoka Factory (72) Inventor Toru Shigesawa 1304, Kanaokacho, Sakai-shi, Osaka Daikin Industries Sakai Seisakusho F term in Kanaoka factory (reference) 3L081 AA06 AB04 FA01 FB01

Claims (18)

[Claims] 1. An air outlet (16) for blowing conditioned air from a ceiling surface toward a room space, wherein the air outlet (16) is provided.
In addition, a decorative panel of an air conditioner provided with horizontal blades (18) for adjusting the blowing direction of the conditioned air, wherein the horizontal blades (18) are provided at the airflow upstream side edges at both ends in the longitudinal direction, A decorative panel for an air conditioner having an opening (18c) through which conditioned air passes. 2. The air conditioner according to claim 1, wherein the opening (18c) is formed by a notch formed at an airflow upstream edge at both longitudinal ends of the horizontal blade (18). Makeup panel. 3. An air outlet (16) for blowing conditioned air from a ceiling surface toward a room space, wherein the air outlet (16) is provided.
A decorative panel of an air conditioner provided with horizontal blades (18) for adjusting the blowing direction of the conditioned air, wherein the horizontal blades (18) are located on the upstream side of the airflow from the center in the longitudinal direction toward both ends. A decorative panel of an air conditioner in which an edge is formed so as to gradually rise. 4. An air outlet (16) for blowing conditioned air from a ceiling surface toward a room space, wherein the air outlet (16) is provided.
A decorative panel of an air conditioner provided with horizontal blades (18) for adjusting the blowing direction of the conditioned air, wherein the horizontal blades (18) are located at both ends of the horizontal blade at a position closer to the longitudinal direction than at the center. (18) The decorative panel of the air conditioner, wherein the airflow upstream end is formed so as to increase the airflow flowing to the negative pressure side. 5. The horizontal blade (18) is curved toward one side in the short direction of the air outlet (16) as it is located from the upstream side to the downstream side of the blown airflow. The decorative panel of an air conditioner according to any one of claims 1 to 4, wherein a wall surface on one side of the outlet (16) is curved in the same direction as the horizontal blade (18). 6. An air outlet (16) for blowing conditioned air from a ceiling surface toward a room space, said air outlet (16).
In addition, the air outlet unit of the air conditioner provided with horizontal blades (18) for adjusting the blowing direction of the conditioned air, wherein the horizontal blades (18) are located at the airflow upstream edge at both ends in the longitudinal direction. An air outlet unit for an air conditioner, comprising an opening (18c) through which conditioned air passes. 7. The air conditioner according to claim 6, wherein the opening (18c) is formed by a notch formed at an airflow upstream edge at both ends in the longitudinal direction of the horizontal blade (18). Outlet unit. 8. An air outlet (16) for blowing conditioned air from a ceiling surface toward a room space, wherein the air outlet (16) is provided.
In addition, the air outlet unit of the air conditioner provided with horizontal blades (18) for adjusting the blowing direction of the conditioned air, wherein the horizontal blades (18) are airflow upstream from the center in the longitudinal direction to both ends. An air outlet unit of an air conditioner in which a side edge is formed so as to gradually rise. 9. An air outlet (16) for blowing conditioned air from a ceiling surface toward a room space, wherein the air outlet (16) is provided.
The air outlet unit of the air conditioner provided with horizontal blades (18) for adjusting the blowing direction of the conditioned air, wherein the horizontal blades (18) are located at both ends than at the center in the longitudinal direction. An air outlet unit of an air conditioner in which an airflow upstream end is formed so as to increase the airflow flowing toward the negative pressure surface side of the blade (18). 10. The horizontal blade (18) has an air outlet (16) as it is located from upstream to downstream of the blown airflow.
10. The air outlet (16) is curved toward one side in the lateral direction, and the wall surface on the one side of the air outlet (16) is curved in the same direction as the horizontal blade (18). A decorative panel for an air conditioner according to claim 1. 11. An air conditioner comprising a decorative panel (14) attached along a ceiling surface, wherein the decorative panel (14) is constituted by the decorative panel according to any one of claims 1 to 5. Air conditioner. 12. An air conditioner comprising a decorative panel (14) attached along a ceiling surface, wherein the decorative panel (14) is constituted by the decorative panel according to claim 2, and 16) has an enlarged portion (16L) in which the longitudinal opening length increases at a portion facing the indoor space, and the opening portion (18c) of the horizontal blade (18) expands the air outlet (16). Air conditioner formed in the area corresponding to the part (16L). 13. An air conditioner comprising a decorative panel (14) attached along a ceiling surface, wherein the decorative panel (14) is constituted by the decorative panel according to claim 3, and an air outlet ( 16) has an enlarged portion (16L) where the opening length in the longitudinal direction faces the indoor space, and the horizontal blade (18) corresponds to the enlarged portion (16L) of the air outlet (16). An air conditioner in which a region formed is formed such that an upstream edge of an airflow gradually rises from a center portion in a longitudinal direction toward both ends. 14. An air conditioner provided with a decorative panel (14) attached along a ceiling surface, wherein the decorative panel (14) is constituted by the decorative panel according to claim 4, wherein an air outlet ( 16) has an enlarged portion (16L) where the opening length in the longitudinal direction faces the indoor space, and the horizontal blade (18) corresponds to the enlarged portion (16L) of the air outlet (16). An air conditioner in which an airflow upstream edge is formed so as to increase the airflow flowing toward the negative pressure surface side of the horizontal blade (18) in the region where the horizontal blade (18) is located. 15. An air outlet unit (51) attached to a ceiling surface is connected to an air conditioner main body (5) through a ventilation duct (52).
An air conditioner connected to (3), wherein the outlet unit (51) is constituted by the outlet unit according to any one of claims 6 to 10. 16. An air outlet unit (51) attached to a ceiling surface is connected to an air conditioner main body (5) through a ventilation duct (52).
An air conditioner connected to (3), wherein the outlet unit (51) is constituted by the outlet unit according to claim 7, wherein the air outlet (16) has a longitudinal opening length of indoor. It has an enlarged portion (16L) that expands at the portion facing the space, and the opening (18c) of the horizontal blade (18) is formed in a region corresponding to the enlarged portion (16L) of the air outlet (16). Air conditioner. 17. An air outlet unit (51) attached to a ceiling surface is connected to an air conditioner main body (5) through a ventilation duct (52).
An air conditioner connected to (3), wherein the outlet unit (51) is constituted by the outlet unit according to claim 8, wherein the air outlet (16) has a longitudinal opening length of indoor. The horizontal blade (18) has an enlarged portion (16L) that expands at the portion facing the space. An air conditioner formed so that the upstream edge of the airflow gradually rises toward the front. 18. An air outlet unit (51) attached to a ceiling surface is connected to an air conditioner main body (5) through a ventilation duct (52).
An air conditioner connected to (3), wherein the outlet unit (51) is constituted by the outlet unit according to claim 9, wherein the air outlet (16) has a longitudinal opening length of indoor. The horizontal blade (18) has an enlarged portion (16L) expanding at a portion facing the space, and the horizontal blade (18) has a negative portion of the horizontal blade (18) in a region corresponding to the enlarged portion (16L) of the air outlet (16). An air conditioner in which an upstream edge of an airflow is formed so as to increase an airflow flowing toward a pressure surface.