JPS6328333Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a ceiling-embedded air conditioner that is installed in the ceiling and blows cold or warm air into a target area indoors for cooling or heating.

(Prior art) A ceiling-embedded air conditioner that cools or heats air by providing an inlet and an outlet on a lower panel attached to the ceiling.Three-way or This is an air conditioner that blows air in four directions, and its structure is well known as disclosed in Japanese Utility Model Application No. 59-4924.

As shown in FIGS. 5 and 6, this air conditioner has an inlet 2 in the center of a lower panel 1, and elongated square outlets 3, 3, . . . on all sides adjacent to the inlet 2. After the indoor return air introduced from the suction port 2 is passed through the user-side coils 4, 4, etc. by the blower 5 and turned into cold air or warm air,
It has a structure in which the air is discharged downward from four blow-off ports 3, 3....

This air conditioner can blow out cold or warm air on average over four circumferences, so by installing it in the center of the ceiling, it is possible to make the airflow distribution in the room more or less uniform.

(Problems to be Solved by the Invention) However, the above-mentioned four-way blowout type has the following problems.

In other words, the air outlets 3, 3... do not intersect at right angles, and when they intersect, the horizontal cross-sectional rectangular part is blocked by the column structure inside the machine, etc., and the lower panel In 1, in order to improve the appearance of the building, decorative pillars that have the same shape as the horizontal blades are installed in locations corresponding to the aforementioned blocked areas, but conditioned air is actually blown out from these locations. Therefore, even though air is blown from all directions, the air is not blown from the corners, so this becomes a dead space and there is a limit to the ability to average the airflow distribution in each part of the room.

Therefore, some people are considering eliminating the pillar structure by improving the structure, and by making the air outlets 3 and 3 intersect at right angles at the corner, the conditioned air can be blown downward from the corner. It has been proposed recently that the corner part where the air outlets 3 and 3 intersect at right angles has a square horizontal cross section.
Since this is the part where the slow winds at the ends of the two outlets 3, 3 intersect and blow out, the slow wind blowing vertically downward toward the outlets 3, 3 is the suction port that exists in the immediate vicinity. 2, the air that is supposed to be blown into the cabin is short-circuited into the cabin, so it cannot be used for cooling or heating, and the blown air is not cold. In this case, as shown in Fig. 7, the corner of the decorative board of the lower panel 1 that contacts the corner of the air outlets 3, 3 on the inside (the part with diagonal lines downward to the left) is locally cooled, causing dew to form. There was a problem in which drops were caused to fall downward, and simply using the corner portion as the outlet was not a fundamental solution.

Therefore, the present invention allows the air to flow from the corner portions described above to make the distribution of room temperature more uniform, while also preventing the occurrence of dew build-up, especially during cooling. The purpose of the invention is to improve adaptability to

(Means for Solving the Problems) Therefore, the present invention is a ceiling-mounted air conditioner that blows conditioned air downward from the air outlets 3, 3, etc. provided on three or four sides surrounding the air inlet 2 as described above. In the corner member 14, the corner member 14 is made up of a pair of bearing pieces 15, 15 having a bearing hole 17 and intersecting at right angles to each other, and a rectangular airflow deflecting plate 16 intersecting the bearing pieces 15, 15. , bottom panel 1
The corner member 14 is arranged and fixed at a corner portion where the air outlet ports 3, 3 intersect. While supporting the shaft of the horizontal blade 13 interposed in the air outlet 3, the airflow deflecting plate 16 is interposed horizontally or diagonally downwardly at the corner portion to direct the air blown from the corner portion. It is characterized in that it can be turned horizontally or diagonally downward in the forward direction in a direction of dispersion that is far away from the suction port 2.

(Function) Since the present invention eliminates the short circuit between the blown air and the blown air by providing the airflow deflection plate 16 at the corner portion, the air conditioning efficiency and airflow distribution are improved accordingly, and moreover, cold air is blown out. It is possible to prevent the occurrence of dew condensation in advance.

Furthermore, since the corner members 14 are integrally provided with bearing pieces 15, 15 for pivotally supporting the horizontal blades 13, it is easy to attach the horizontal blades 13, and the structure can be simplified by using common parts. obtain.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

FIGS. 1 and 2 show a ceiling-mounted air conditioner with four-way outlet according to one example of the present invention, in which a lid-like shape is covered with a lower opening of a casing 10 installed in a space in the ceiling. The lower panel 1, which is attached to the ceiling, has a rectangular air inlet 2 in the center, and four rectangular air outlets distributed around the air inlet 2 in close proximity to each other. The outlets 3, 3... are opened in an obliquely downward blowing structure.

A coil 4, a fan 5, and a double-shaft motor 9 are housed in the casing 10, and the coil 4 is, for example, a cross-fin type coil,
The casing 10 has two units standing upright in the depth direction in the casing 10, facing each other so as to sandwich the inner space from both sides, for example, from the front side and the rear side.

The coils 4, 4 are inside a drain pan 12 whose tops are in contact with a plate serving as the top surface of the casing 10, and whose bottoms are attached to a wall plate provided to prevent air short circuit between the suction port 2 and the blowout port 3. The coil 4 is arranged so as to fall into the coil 4, so that the flowing air does not blow against the coil 4 within the casing 10 and bypass the coil 4.

By providing the coils 4, 4 in this way, the space sandwiched by both the coils 4, 4, that is, the space projected by the suction port 2 on the inner side of the suction port 2, is A bidirectional blowing type fan 5 is disposed in this space.

The fan 5 has a structure in which, for example, two housings of the same shape are arranged in the axial direction with a rotation angle of 180 degrees out of phase with respect to each other, and a rotor is housed in both housings in a coaxial arrangement and is rotatably supported. By directly coaxially connecting these two units to the double-shaft motor 9, a two-way bidirectional system is constructed that can uniformly distribute and blow wind over the entire width of the coils 4, 4. A blow-out fan 5 is formed.

The fan 5 having the above-described structure is arranged so that its suction part faces the suction port 2 and its blowing part faces the coils 4, 4, respectively.

Note that the blower is not limited to the above-mentioned two-way blowing type, but a plurality of ordinary one-way blowing type blowers may be used.

Therefore, partition plates 6, 6 are connected to the coils 4, 4, and the partition plates 6 extend in the depth direction of the peripheral edges of the coils 4, 4, and the side edges facing each other are connected to the coils 4, 4. between each other, and the casing 10
They are each set upright with an appropriate distance between them and the side plates of the.

The partition plates 6, 6 are formed as wall members to prevent the mixed flow of the suction side air and the blowout side air, and to form flow paths for the blowout side air on both sides of the coils 4, 4. Thus, the central space surrounded by the coils 4, 4 and the partition plates 6, 6 and facing the suction port 2 is formed as the suction air passage 7, while the suction air passage 7 is surrounded by In addition, a surrounding space facing the four blow-off ports 3, 3, .

In addition, in Fig. 2, 11 is a filter provided at the suction port 2, and 13 is a horizontal blade provided at each of the air outlets 3, 3, which are guide blades for diverting the blown air from a downward direction to a horizontal direction. It has a horizontal character attached to it.

In the air conditioner having the above configuration, corner members 14 are provided at the corner portions of the lower panel 1 where the air outlet ports 3, 3 intersect.

The corner member 14 has a three-dimensional integral shape made of synthetic resin, and includes a pair of bearing pieces 15, 15 and a single airflow deflection plate 16, as shown in FIGS. , a pair of mounting ears 18, 18
It is made up of.

The bearing pieces 15, 15 have a quadrilateral shape,
When attached to the corner portion, it stands vertically, but it has a bearing hole 17 in the center for supporting a shaft protruding from the end of the horizontal blade 13. 17 is connected to a cut groove 19 cut out from one side of the bearing piece 15.

The bearing pieces 15, 15 are arranged so as to cross each other in three-dimensional planes, and are connected to the mounting ears 18, 18, which are bent outward at right angles from the upper end thereof.

These mounting ears 18, 18 have a lower panel 1.
It has a mounting hole for screwing to the inner edge wall of the air outlet 3.

On the other hand, the airflow direction plate 16 is connected to the bearing piece 1.
5 and 15 intersect, and is formed into a rectangular plate whose plane is perpendicular to both bearing pieces 15 and 15 in three dimensions, and the corner When it is attached to a section, it lies horizontally, but in this state it is set to a size that can maintain a gap between it and the outer edge wall of the outlet 3 without blocking the corner of the outlet. ing.

Note that the airflow deflection plate 16 may be configured to cross the bearing pieces 15 obliquely, rather than perpendicularly to the bearing pieces 15.
5, 15 in the direction away from the bearing pieces 15, 1
It is formed so as to have a downward slope with reference to 5.

The corner member 14 having the above-mentioned structure is fixed to the lower panel 1 using a pair of mounting ears 18, 18, and is respectively disposed at the corner portion. , 15 are located approximately along the extending direction of the inner edge of the air outlet 3, while the airflow deflection plate 16 is located horizontally and interposed therebetween.

In addition, in the case of a corner member in which the airflow deflection plate 16 is not perpendicular to the bearing pieces 15, 15 but diagonally intersected, the airflow deflection plate 16 is positioned diagonally intervening in the downward direction. I come to do it.

Thus, the bearing holes 1 of the bearing pieces 15, 15
7 supports the shafts of the horizontal blades 13, so that the horizontal blades 13 are disposed horizontally with respect to the air outlet 3 along its longitudinal direction.

When the fan 5 is energized and the refrigerant is circulated through the coils 4 and 4 to start operation, the indoor return air introduced from the suction port 2 is equally divided between the two coils 4 and 4, and after the circulation. , the air is blown into the room from the four blow-off ports 3, 3, .

In this case, depending on the indoor arrangement, it is also possible to close one blower outlet 3 and use it as a three-way blower.

By the way, as mentioned above, the conditioned air blown out from the corner portion is a very slow wind, but since this corner portion is not blocked, it is sent toward the room and is used for air conditioning.

At this time, due to the action of the airflow deflection plate 16, the slow wind is deflected horizontally or obliquely downward in front of the suction port 2, so that it is smoothly blown into the room. Therefore, the short-circuit phenomenon that is drawn into the suction port 2 as in the conventional device does not occur at all.

(Effects of the invention) As described above, in the present invention, the corner member 14 is provided with the bearing pieces 15, 15 and the airflow deflection plate 16, and these are arranged at the corner of the air outlet.
The air blown from the corner can be blown out using the airflow deflection plate 16 without causing short circuits, making it possible to perform efficient air conditioning using the corner and also to maintain an average airflow distribution. This allows conditioned air to be uniformly delivered to any location in the room.

Furthermore, since the corner member 14 also serves as a support plate for the horizontal blade 13, the structure of the blowing portion can be simplified, and the cost can be reduced by reducing the number of parts.

Further, dew buildup during cooling operation is eliminated, and reliability is improved.

[Brief explanation of the drawing]

1 and 2 are plan and right side sectional views of one example of the present invention, and FIGS. 3 and 4 are sectional views of the
FIGS. 5 and 6 are a partial plan view and a partial front view of a corner portion of a blow-off section of the illustrated device, respectively, and are respective cross-sectional views of a plane and a right side of an example of a conventional air conditioner.
FIG. 7 is a partially enlarged bottom view of the conventional air conditioner. 1... Bottom panel, 2... Inlet, 3... Outlet, 13... Horizontal blade, 14... Corner member, 1
5...Bearing piece, 16...Airflow direction plate, 17...
Bearing hole.

Claims (1)

[Scope of utility model registration request] A suction port 2 is provided in the center of the lower panel 1 that is attached to the ceiling, and air outlets 3, 3, etc. are opened on three or four sides close to the suction port 2, and conditioned air is supplied from each of the air outlets 3, 3, and so on. In a ceiling-embedded air conditioner that blows air downward, a pair of bearing pieces 15, 15 each having a bearing hole 17 and intersecting each other perpendicular to each other.
A corner member 14 consisting of a rectangular airflow deflection plate 16 intersecting both bearing pieces 15, 15 is arranged and fixed at the corner portion of the lower panel 1 where the air outlet ports 3, 3 intersect. The corner member 14 has bearing pieces 15, 15 located approximately along the extending direction of the inner edges of the air outlets 3, 3 in the corner portions, so that the axis of the horizontal blade 13 interposed in the air outlet 3 is aligned. On the other hand, an airflow deflecting plate 16 is interposed horizontally or diagonally downward in the front at the corner to direct the air blown from the corner horizontally or diagonally downward in the front, far from the suction port 2. A ceiling-embedded air conditioner characterized by being able to change its direction in the direction of dispersion.