JP2002081733A - Decoration panel of air conditioner, air supply opening unit, and air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably prevent a ceiling surface from being contaminated when an enlargement section (16L) is provided at an end section in the longitudinal direction of an air supply opening (16) while achieving setting in an appropriate blow direction according to the operation state of an air conditioner by improving the shape of a horizontal blade (18) that is provided at the air supply opening (16) of the air conditioner. SOLUTION: A guide plate (18g) for guiding air-conditioning air in a direction that nearly orthogonally crosses the longitudinal direction of the air supply opening (16) is provided at a position nearly corresponding to the inner end of the enlargement section (16L) of the air supply opening (16) in the horizontal blade (18).

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, and an air outlet provided with the horizontal blade.

[0002]

2. Description of the Related Art Conventionally, for example, in an air conditioner of a buried ceiling type or a duct type, a horizontal blade capable of changing a blowing direction of conditioned air up and down is provided at an air outlet. 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 blown-out air-conditioned air and dust contained in the indoor air may adhere to the ceiling surface, and the ceiling surface may be partially contaminated. See Figure 1
When the air conditioner is viewed from the horizontal direction as shown in FIG.
The airflow blown from the air outlet (a) in the horizontal blowing state has a substantially V-shape when viewed along the flow. here,
At the center in the longitudinal direction of the air outlet (a), the negative pressure becomes stronger due to the high speed of the air blowout, but due to the high flow speed and strong airflow, the air flows to the ceiling (b) near the outlet. Does not adhere.

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).

[0005] Measures for avoiding such contamination are as follows.
Conventionally, various proposals have been made. For example, Japanese Patent Laid-Open No. 3-16
Japanese Patent Application No. 0266 proposes a technique in which auxiliary fins for shifting the blowing direction to the ceiling surface are detachably provided on the horizontal blades, and the auxiliary fins are attached and detached in accordance with the ease with which ceiling dirt is generated. 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.

However, even if the auxiliary fins are provided as in the above-described conventional example, the auxiliary fins must be removed in an environment where ceiling dirt is likely to be generated. Because it is blown downward, not only does air conditioning efficiency drop during the cooling operation, which should originally perform horizontal blowout, but also the sense of discomfort (so-called draft feeling) caused by the cold air being blown directly to the people in the room Problems arise.

[0007]

By the way, in the ceiling-mounted type air conditioner, for example, it is necessary to make the shape of the blow-out opening of the decorative panel the same for all four for the reason of the external appearance. When pipes and electrical component boxes are arranged in the corners, air outlets as shown in FIG.
The opening length in the longitudinal direction of (a) may be different between the main body casing side and the decorative panel side. In such a case, the air outlet (a) has an enlarged portion at the end in the longitudinal direction, at which the opening length of the air passage extends in the longitudinal direction of the air outlet (a) at a portion facing the indoor space. (c) will be formed.

[0008] As described above, the enlarged portion is provided at the end of the air outlet (a).
When the horizontal blade (d) is set in the horizontal blowing state in the case where the horizontal blade (d) is formed, air flows from the center in the longitudinal direction of the horizontal blade (d) toward the end as shown by an arrow in FIG. It flows to the side. As a result, the velocity of the air blown out from the end of the air outlet (a) decreases, and as a result, the air at the end of the air outlet (a) becomes negative pressure at the center of the air outlet (a). As a result, it easily adheres to the ceiling (b), causing the ceiling surface (b) to become dirty easily.

The present invention has been made in view of such a problem, and an object of the present invention is to improve the shape of a horizontal blade provided at an air outlet, thereby improving the shape of a horizontal blade.
To be able to set the appropriate blowing direction according to the operating condition of the air conditioner, and also to prevent dirt on the ceiling surface when an enlarged portion is provided at the longitudinal end of the air outlet. It is.

[0010]

SUMMARY OF THE INVENTION According to the present invention, a horizontal blade is improved so that conditioned air is guided inside the enlarged portion of the air outlet in a direction substantially perpendicular to the longitudinal direction of the air outlet, and is guided to the enlarged portion. The conditioned air is made difficult to flow.

Specifically, a solution taken by the present invention is to provide an air outlet (16) for blowing out conditioned air from a ceiling surface (70) toward a room space. A decorative panel and an air outlet unit of an air conditioner provided with horizontal blades (18) for adjusting the air blowing direction, an air conditioner on which the decorative panel (14) is mounted along a ceiling surface, and the air outlet The unit (51) is attached to the ceiling surface, and the air conditioner body (5
It is assumed that the air conditioner is connected to 3).

At substantially the end of the air outlet (16), there is provided an enlarged portion (16L) whose longitudinal opening length is increased at a portion facing the indoor space, and the horizontal blade (18) is provided with: Air outlet (1
6) The position (preferably, the enlarged portion) substantially corresponding to the inner end of the enlarged portion (16L) (the end of the air outlet (16) at the center in the longitudinal direction).
(A position slightly inside the inner end of (16L)), the conditioned air is guided in a direction substantially perpendicular to the longitudinal direction of the air outlet (16). The direction in which the conditioned air is guided is not necessarily the orthogonal direction as long as it does not flow into the enlarged portion (16L) (the same applies hereinafter).

[0013] In this configuration, the horizontal blade (18) is located at a position substantially corresponding to the inner end of the enlarged portion (16L) of the air outlet (16), and supplies the conditioned air substantially in the longitudinal direction of the air outlet (16). Guide means (18g) for guiding in a direction orthogonal to the direction may be provided.

The guide means (18g) can be constituted by a guide plate provided on the upper surface (18f) of the horizontal blade (18) in a state of horizontal blowing. This guide plate (18g)
Is preferably disposed along a direction substantially perpendicular to the longitudinal direction of the horizontal blade (18). However, the conditioned air may be inclined so as to be guided toward the center in the longitudinal direction of the air outlet (16).

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
The conditioned air is guided in a substantially horizontal direction in the central portion of. Also, the conditioned air hitting the horizontal blade (18) hardly flows into the enlarged portion (16L) by the guide means (18g) such as a guide plate provided on the upper surface (18f) of the horizontal blade (18). With a flow along the guide plate (18 g), it is blown out almost horizontally at a high flow rate. On the other hand, a part of the conditioned air that has hit the horizontal blades (18) flows to the enlarged portion (16L), but the amount is small, and the amount of air flowing out from the end of the air outlet (16) is small. Therefore, at the end of the horizontal blade (18), the flow rate of the conditioned air having a low initial blowing speed flowing along the ceiling surface decreases. During the heating operation, the horizontal blades (18)
By adjusting the downward direction, the conditioned air is
(16) is blown downward into the room from the whole.

Further, in the above configuration, the upstream edge of the airflow at the substantially longitudinal end portion (that is, the vicinity of both ends) of the horizontal blade (18) is substantially at the enlarged portion (16L) of the air outlet (16). It is preferable that the conditioned air pass through the corresponding area. For example, an opening (18c) can be provided by cutting out a part of the horizontal blade (18).

With this configuration, during the cooling operation, the conditioned air is guided in a substantially horizontal direction at the center of the air outlet (16) having a relatively high flow rate, while the blow rate is low. At the longitudinal end of the relatively slow air outlet (16), part of the conditioned air is blown downward from the center through the opening (18c) at the substantially end of the horizontal blade (18). . Therefore, the flow rate of the conditioned air having a low initial blowing speed at the end of the air outlet (16) flows along the ceiling surface.

In the above structure, the air outlet (16)
The side wall (16b-s) of the region almost corresponding to the enlarged portion (16L) at the longitudinal end is configured to blow the conditioned air downward from the side wall (16b-c) at the central portion in the longitudinal direction. Preferably, for example, the angle of the side wall of the air outlet (16) with respect to the ceiling surface may be different between the center in the longitudinal direction and the end.

According to this structure, at the time of cooling operation, the conditioned air is reliably blown downward at the longitudinal end of the air outlet (16) having a relatively low flow velocity from the central portion in the longitudinal direction. In addition, the flow rate of the conditioned air having a low initial blowing speed flowing along the ceiling surface is reduced.

[0020]

Therefore, according to the above solution, the air flowing downward in the air passage (W) almost hits the horizontal blade (18) and flows outward in the longitudinal direction (toward the enlarged portion (16)). Absent. Conventionally, the air at the end of the air outlet (16) is decelerated by this outward air flow and flows out sideways, and the air at the end of the air outlet (16) is reduced by the negative pressure at the center. According to the above solution, the air at the end of the air outlet (16) is not easily attached to the ceiling surface (70).
It is difficult to adhere to (70) and dirt hardly occurs.

For this reason, especially in the cooling operation in which the horizontal blowing of the conditioned air is required, it is possible to make the blowing direction of the conditioned air closer to the horizontal direction as compared with the related art while preventing the ceiling surface (70) from being stained. Enabled,
The air-conditioning efficiency can be ensured and the sense of discomfort (draft) for indoor occupants can be eliminated. Further, since the ceiling surface (70) is hardly stained, the beauty of the ceiling surface (70) is not impaired, and cleaning is not required.

Conventionally, since cool air leaks to the outside in the longitudinal direction of the air outlet (16) and easily forms dew on the lower surface of the panel, it is necessary to take some measures such as flocking. In the above-mentioned solution, since the air does not easily flow from the end of the horizontal blade (18) to the outside, dew condensation hardly occurs without taking such measures. In addition, since such measures are not required, there is an advantage that aesthetics and cleanability are improved.

Further, the air-conditioning air is configured to pass through the airflow upstream edge at the substantially longitudinal end of the horizontal blade (18), or the side wall (16b) at the longitudinal end of the air outlet (16). -s) to blow air conditioning air downward from the side wall (16b-c) at the center in the longitudinal direction.
The air-conditioned air is blown downward from the end of (16), which is combined with the low air volume in this area.
The adhesion of dirt to (70) can be reliably prevented.

[0024]

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 structure of the ceiling-mounted air conditioner (1) 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 the 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 four elongated air outlets (16) are formed along each of four sides of the air suction port (15). Then, the air inlet (1
5) is provided with an air filter (17) over its entire surface for removing suspended matters such as particulate dust contained in room air, and the entire lower surface of the air filter (17) is formed in a grid. Supported by the filter cover.

As shown in FIGS. 3 and 4 in an enlarged manner, the air outlet 16 of the decorative panel 14 is provided with an outer guide surface (16a) which is a side wall on the outer peripheral side (right side in the figure) of the air passage. , 16b) and
The inner guide surface (16
c, 16d). Outer guideway (16a, 16b)
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 central part (16b-c) located at the central part in the longitudinal direction of the air outlet (16) is set at a relatively small angle (about 30 degrees) with respect to the ceiling surface (70). Both ends (16b-s) located substantially at both ends are set at a relatively large angle (about 60 degrees) with respect to the ceiling surface (70). 2nd outer guideway
In (16b), the inclination gradually changes from the center (16b-c) to both ends (16b-s), and the angle formed with the ceiling surface (70) changes continuously. Then, as shown in FIG. 5, which is a perspective view of the air outlet (16) viewed from below, the second outer guide surface (1
The lower edge (16b-e) of 6b) is formed in an arc shape.

On the other hand, as shown in FIGS. 3 and 4, the inner guide surfaces (16c, 16d) have a first inner guide surface (16c) extending substantially vertically downward and a first inner guide surface (16c). A second inner guide surface (16d) gently inclined obliquely downward from the lower end toward the outer peripheral side of the panel, and both 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. The air outlet (16) is connected to these outer guide surfaces (1) as described above.
6a, 16b) and the inner guide surfaces (16c, 16d). The air outlet (16) has horizontal blades (18) that can adjust the blowing direction of the conditioned air up and down.
It is disposed between the outer guide surfaces (16a, 16b) of the inner member (14a) and the inner guide surfaces (16c, 16d) of the inner member (14b).

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.

The outer guide surfaces (16a, 16b) are provided with horizontal blades (1).
8) The cross-sectional shape is substantially the same as the cross-sectional shape of (8) (the shape is not limited to the curved shape, and may be a shape substantially along the horizontal blade (18)), while the inner guide surfaces (16c, 16d) In addition, it is formed so as to extend vertically below the outer guide surfaces (16a, 16b) of the outer member (14a). The shape of the inner guide surfaces (16c, 16d) may be arbitrarily selected.

Then, 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).

In the ceiling-embedded air conditioner of this embodiment, the piping and the electrical component box are arranged at the corners in the main body casing (11). ) Are the same for all four blowing openings. Therefore, as shown in FIG. 7, the length of the opening of the air passage in the longitudinal direction is different from that of the body casing (11) side and the decorative panel (14).
Different on the side. In other words, the air outlet (16) has, at almost both ends in the longitudinal direction, an enlarged portion (16L) that extends in the longitudinal direction of the air outlet (16) at a portion facing the indoor space at the opening length of the air passage. ) Is formed. This enlarged section (16
The length of L) varies depending on the air outlet (16) of the product.

The second outer guide surface (16b) is provided at the enlarged portion.
(16L) in the area corresponding to the second outer guide surface (16
b) at both ends (16b-s)) and the side wall (16b-s) at the center in the longitudinal direction.
It is formed at the above-mentioned angle setting so that the conditioned air is blown downward from c). That is, the central portion (16b) of the side wall (16b) located at the central portion in the longitudinal direction of the air outlet (16)
-c) is at a relatively small angle to the ceiling surface (70) (approximately 30
Degrees), while the side wall (16L) substantially corresponds to the enlarged portions (16L) located at both longitudinal ends of the air outlet (16).
Both ends (16b-s) of b) are set at a relatively large angle (about 60 degrees) with respect to the ceiling surface (70).

Further, the horizontal blade (18) substantially directs the conditioned air at right angles to the longitudinal direction of the air outlet (16) at a position substantially corresponding to the inner end of the enlarged portion (16L) of the air outlet (16). It is configured to guide in a direction. Specifically, horizontal blades (1
8) guide means (18g) for guiding conditioned air in a direction substantially orthogonal to the longitudinal direction of the air outlet (16) at a position substantially corresponding to the inner end of the enlarged portion (16L) of the air outlet (16). ). The guide means (18g) is a guide plate provided on the upper surface (18f) of the horizontal blade (18) in the state of horizontal blowing.
(18g), and the guide plate (18g) has horizontal blades (1
It is disposed along a direction substantially perpendicular to the longitudinal direction of 8). The guide plate (18g) may be slightly inclined so as to guide the conditioned air toward the longitudinal center of the air outlet (16).

A notch (18c) is formed in the airflow upstream edge at substantially both ends in the longitudinal direction of the horizontal blade (18) as an opening through which conditioned air passes. This notch
(18c) is located in a region substantially corresponding to the enlarged portion (16L) of the air outlet (16), specifically, approximately one-fourth the length of the horizontal blade (18) in the longitudinal direction. It is formed on the upstream edge of the airflow at substantially 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, about 480 mm in overall length and about 3 mm in width (width of the central part (18d)).
7mm, width of both ends (18e) is about 25mm, notch (1
8c) 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 arrangement, 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, 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.
The conditioned air is supplied to the side wall (16a, 1
6b) and the inner side wall (16c, 16d) of the panel
In accordance with 8), the air is blown downward as shown by an arrow S in FIG.

On the other hand, when a so-called horizontal blow-out state is performed during a cooling operation or the like, as shown in FIG. 3, the horizontal blade (18) is turned upward to rotate the upper 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)
The air is blown out at an angle close to parallel to the lower surface of 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), the conditioned air flowing downward through the air flow passage (W) flows substantially along the guide plate (18g) as shown in FIG. Only a small part of the air flows into the enlarged section (16L), and its flow rate is small. The small amount of conditioned air that has flowed into the enlarged portion (16L) passes through notches (18c) at almost both ends (18e) of the horizontal blade (18), and blows out almost downward as shown by an arrow S2 in FIG. Is done. Further, the air blown out from both ends of the air outlet (16) flows through both ends (16b-s) of the second outer guide surface (16b) at the center.
Since it has a more upright shape (a shape with a small inclination) than (16b-c), it flows in the direction of arrow S3 below the arrow S1 in FIG. As a result, at both ends of the air outlet (16), the conditioned air is almost downward (directions of arrows S2 and S3).
And hardly flows in the direction of arrow S1. 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.

Therefore, conventionally, for example, in an air conditioner of a ceiling-embedded type, in a portion where the air blowing speed is low (both end portions 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.

In particular, in the present embodiment, since the guide plate (18g) is provided on the horizontal blade (18), the air flowing downward in the air passage (W) hits the horizontal blade (18) outward in the longitudinal direction. It hardly flows. For this reason, conventionally, the air at the end of the air outlet (16) is decelerated and laterally flows out by the outward airflow, and the air outlet (16)
While the air at the end of the air outlet easily adhered to the ceiling surface (70) due to the negative pressure at the center, in the present embodiment, the air outlet (16)
The air at the end of the ceiling hardly adheres to the ceiling surface (70), and dirt hardly occurs.

Therefore, the air conditioner of this embodiment
According to (1), especially in the cooling operation in which the horizontal blowing of the conditioned air is required, the blowing direction of the conditioned air should be closer to the horizontal direction than before, while preventing the ceiling surface (70) from being stained. As a result, the air conditioning efficiency can be ensured and the sense of discomfort (draft feeling) of the indoor occupants can be eliminated. Furthermore, since the ceiling surface (70) is hardly soiled, the ceiling surface (7
Cleaning is not required without impairing the aesthetics of 0).

In the case where the guide plate (18g) is not provided on the horizontal blade (18), dew condensation easily occurs on the lower surface of the panel outside the air outlet (16) in the longitudinal direction. While some measures had to be taken, in the present embodiment, the air flow from the end of the horizontal blade (18) to the outside is unlikely to occur, so that dew condensation hardly occurs without such measures. . Further, since such a measure is not required, there is an advantage that cost can be reduced and aesthetic appearance and cleanability are improved.

Also, 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.

[0050]

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)
The guide plates (18g) are provided one by one at almost both ends of
There may be a plurality of guide plates (18 g). Also, air outlet
When the enlarged portion (16L) is provided only at one end of (16), the guide plate (18g) may be provided only on the end side where the enlarged portion (16L) is provided.

In the above-described embodiment, the present invention is applied to the so-called ceiling-mounted four-way blow-type air conditioner (1) which is provided with a turbo fan and blows out conditioned air in four directions. 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). Also in the air outlet unit (51) of the air conditioner (50), the guide plate (18g) is provided at the longitudinal end side of the horizontal blade (18) arranged in the air outlet (16), whereby The same effect as the embodiment can be obtained.

In the above embodiment, the notch (18c) is formed as an opening at substantially both ends (18e) of the horizontal blade (18), but the opening (18c) is not necessarily provided. . In the case where an opening is provided, a through hole may be provided in the horizontal blade (18) instead of the notch (18c), and the upstream edge of the airflow is provided with the air outlet (16) at the time of horizontal blowing. What is necessary is just to be the structure which blows air downward from both ends.

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 formed as a notch, the notch (18c) has a shape as shown in FIG. 9 (a) to FIG. 9 (c), for example, which shows the end of the horizontal blade (18). be able to.
FIG. 9 (a) shows an example in which the airflow upstream edge at substantially both ends in the longitudinal direction of the horizontal blade (18) is formed in an arc shape, and FIG. 9 (b) shows that the airflow upstream edge is linear. Example formed obliquely, FIG.
FIG. 9C 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.

Furthermore, in the above embodiment, the air outlet (1
The inclination of the second outer guide surface (16b) in (6) is set so that both ends (16b-s) are closer to the vertical than the center (16b-c), but this is not necessarily the case. Does not need to be formed,
The second outer guide surface (16b) may be, for example, aligned with the inclination of the central portion (16b-c) of the above embodiment over the entire area of the air outlet (16).

[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.

FIG. 7 is a partial perspective view when an enlarged portion is provided in an air outlet.

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

FIGS. 9A to 9D are perspective views showing the shape of the opening of the horizontal blade.

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.

FIG. 11 is a partial perspective view of a conventional air conditioner in which an enlarged portion is provided at an air outlet.

[Explanation of symbols]

 (1) Air conditioner (10) Casing (11) Main casing (14) Decorative panel (15) Air inlet (16) Air outlet (16b-s) Side wall (16L) Enlarged part (18) Horizontal blade (18c Notch (opening) (18g) Guide means (20) Fan (30) Heat exchanger (50) Air conditioner (51) Air outlet unit (52) Ventilation duct (53) Air conditioner body (70) Ceiling panel (Ceiling surface)

Continued on the front page (72) Inventor Taku Hirakawa 1304 Kanaokacho, Sakai City, Osaka Prefecture Daikin Industries, Ltd.Kanaoka Plant, Sakai Works Co., Ltd. F-term in the factory (reference) 3L051 BJ10 3L081 FB01 FC03

Claims (14)

[Claims] An air outlet (16) for blowing conditioned air from a ceiling surface (70) toward an indoor space is provided.
6), horizontal blades (18) for adjusting the blowing direction of conditioned air
A decorative panel of an air conditioner provided with: an enlarged portion (16L) provided at a substantially end portion of the air outlet (16) so that a longitudinal opening length is increased at a portion facing an indoor space. The horizontal blade (18) guides the conditioned air in a direction substantially perpendicular to the longitudinal direction of the air outlet (16) at a position substantially corresponding to the inner end of the enlarged portion (16L) of the air outlet (16). Panel of an air conditioner configured as follows. 2. The horizontal blade (18) is provided at a position substantially corresponding to the inner end of the enlarged portion (16L) of the air outlet (16), so that the conditioned air is substantially orthogonal to the longitudinal direction of the air outlet (16). The decorative panel for an air conditioner according to claim 1, further comprising a guide means (18g) for guiding in a direction. 3. The decorative panel for an air conditioner according to claim 2, wherein the guide means (18g) is constituted by a guide plate provided on an upper surface (18f) of the horizontal blade (18) in a horizontal blowing state. 4. The decorative panel of an air conditioner according to claim 3, wherein the guide plate (18g) is disposed along a direction substantially orthogonal to a longitudinal direction of the horizontal blade (18). 5. An airflow upstream edge at a substantially longitudinal end of the horizontal blade (18) is formed so that conditioned air passes through a region substantially corresponding to an enlarged portion (16L) of the air outlet (16). The decorative panel of the air conditioner according to any one of claims 1 to 4, wherein the decorative panel is configured. 6. The air outlet (16) has a side wall (16b-s) in a region substantially corresponding to the enlarged portion (16L) at the longitudinal end, and a side wall (16b-c) at a central portion in the longitudinal direction. 6. The air conditioner according to claim 1, wherein the air is blown downward.
The decorative panel of the air conditioner according to any one of the preceding claims. 7. An air outlet (16) for blowing conditioned air from a ceiling surface (70) toward a room space, wherein the air outlet (1) is provided.
6), horizontal blades (18) for adjusting the blowing direction of conditioned air
An air outlet unit of an air conditioner provided with an expansion portion (16L) provided at substantially the end of the air outlet (16), the opening length in the longitudinal direction expanding at a portion facing the indoor space. The horizontal blade (18) guides the conditioned air in a direction substantially perpendicular to the longitudinal direction of the air outlet (16) at a position substantially corresponding to the inner end of the enlarged portion (16L) of the air outlet (16). An air outlet unit of an air conditioner configured to be. 8. The horizontal blade (18) is located at a position substantially corresponding to the inner end of the enlarged portion (16L) of the air outlet (16), and makes the conditioned air substantially orthogonal to the longitudinal direction of the air outlet (16). The air outlet unit for an air conditioner according to claim 7, further comprising a guide means (18g) for guiding in a direction. 9. The air outlet unit for an air conditioner according to claim 8, wherein the guide means (18g) is constituted by a guide plate provided on an upper surface (18f) of the horizontal blade (18) in a state of horizontal blowing. 10. The guide plate (18g) is disposed along a direction substantially orthogonal to the longitudinal direction of the horizontal blade (18).
The outlet unit of the air conditioner as described in the above. 11. An airflow upstream edge at a substantially longitudinal end portion of the horizontal blade (18) is formed so that conditioned air passes through a region substantially corresponding to an enlarged portion (16L) of the air outlet (16). The air outlet unit for an air conditioner according to any one of claims 7 to 10, which is configured. 12. The air outlet (16) has a side wall (16b-s) in a region substantially corresponding to the enlarged portion (16L) at the longitudinal end, and a side wall (16b-c) at a central portion in the longitudinal direction. The air outlet unit for an air conditioner according to any one of claims 7 to 11, wherein the air outlet is configured to blow the conditioned air downward. 13. An air conditioner comprising a decorative panel (14) attached along a ceiling surface (70), wherein the decorative panel (14) is a decorative panel according to any one of claims 1 to 6. An air conditioner composed of panels. 14. An air conditioner, wherein an air outlet unit (51) attached to a ceiling surface (70) is connected to an air conditioner main body (53) via an air duct (52), An air conditioner, wherein the unit (51) is constituted by the outlet unit according to any one of claims 7 to 12.