JPH08121860A - Air conditioner - Google Patents

Abstract

PURPOSE: To provide an air conditioner whose body can be securely fixed to a metal pendant fittings with a sufficient rigidity. CONSTITUTION: In a pendant type air conditioner, since metal pendant fittings 8a, 8b, 8c and 8d are fixed to recess parts 15a, 15c and 15d formed on the peripheral wall of the air conditioner body extending from one corner of the one face to the other, the rigidity of the fixed parts of the metal pendant fittings at the peripheral walls 6a, 6c and 6d can be enhanced. Therefore, the metal pendant fittings 8a, 8c and 8d can be securely fixed to the peripheral wall of the air conditioner body with a sufficient rigidity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-suspended air conditioner in which a main body is suspended by a plurality of bolts suspended from a ceiling.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. 1-16981 and Japanese Utility Model Publication No. 3-3869 are known as one type of air-conditioning apparatus of this type.

In the air conditioners disclosed in these publications, the main body is installed by passing bolts hanging from the ceiling through hanging fittings fixed to the peripheral wall of the main body.

In addition, as shown in FIG. 4, these air conditioners have a recess 51 in which the corners of a quadrangular shape are recessed inward, and a suspending metal fitting is provided on a part of one surface 52 of the recess. A configuration in which 53 is fixed is disclosed.

[0005]

However, in the above-described conventional air conditioner, the hanging metal fitting fixed to the peripheral wall of the main body is one surface of the concave portion which is concavely formed so as to form a corner. In, it is only fixed to a part of the recess.

That is, in the conventional air conditioner, since the hanging metal fitting is fixed to approximately the center of the wall surface forming the peripheral wall of the main body, sufficient strength cannot be obtained at the fixed portion, and the installation is not possible. When shaking occurs due to time or an earthquake, unreasonable force is applied to the fixed part of the hanging bracket, which causes cracks and damage to the fixed part of the peripheral wall, and in extreme cases it may cause the main unit to drop. There is a point.

Therefore, an object of the present invention is to provide an air conditioner capable of securely fixing the hanging metal fitting and the main body with sufficient strength.

[0008]

According to a first aspect of the present invention, there is provided a ceiling hanging type air conditioner for suspending a main body by engaging a hanging metal fitting provided on the main body with a bolt hanging from a ceiling. The peripheral wall of the main body is formed with a concave portion that forms a corner, and the hanging metal fitting is fixed from the corner of the surface of the concave portion to the corner.

A second aspect of the present invention is an air conditioner of a ceiling suspension type, in which a suspension fitting provided on a main body is engaged with a bolt suspended from a ceiling to suspend the main body containing a heat exchanger. The main body is provided with a concave portion forming a corner on a peripheral wall facing a pair of tube plates arranged on both sides of the heat exchanger, and the hanging portion is formed from the corner of the surface of the concave portion to the corner. It is to fix the metal fittings.

[0010]

In the first aspect of the present invention, the suspending metal is fixed to the peripheral wall of the main body of the air conditioner, and the suspending metal is suspended by being engaged with the bolt. Since the hanging metal fitting is fixed on the entire surface of the concave portion formed on the peripheral wall of the main body from one corner to the other corner, the strength of the fixed portion of the peripheral wall can be increased. This is because, in general, on the surface of the peripheral wall or the like, the corners and the vicinity thereof have high strength and the fixed portion has a large area. Therefore, by fixing the hanging metal fittings from the corners to the surface, the hanging metal fittings can be fixed with sufficient strength, whereby the main body can be reliably installed.

In the second invention, in addition to the first invention,
Partial recesses facing the tube sheet on both sides of the heat exchanger housed in the body are formed. As described above, since both sides of the heat exchanger are recessed, the width of the ventilation passage for the air passing through the heat exchanger is narrowed according to the width of the heat exchanger. This allows efficient heat exchange when passing through the heat exchanger.

[0012]

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

As shown in FIGS. 1 and 2, the air conditioner 1
Is a ceiling-embedded air conditioner that is suspended and fixed in a ceiling space. A suction port 3 is opened on one side of the decorative plate 2, and a blow-out port 4 is opened on the other side, and the air is sucked in through the suction port 3. This is a so-called one-way blow-out type air conditioner in which air is blown out from the blow-out port 4 after heat exchange.

The decorative plate 2 is detachably provided. When the decorative plate 2 is removed, the inside of the main body 6 is exposed.

A blower 5, a heat exchanger 7, a drain pan 8 (not shown in FIG. 1) and an electrical equipment box 9 for controlling the operation are housed in the main body 6, and as shown in FIG. Three
The air sucked from is sent by the blower 5 to the heat exchanger 7, where it is heat-exchanged, and then blown out from the blow-out port 4 through the blowing passage.

A refrigerant pipe is arranged in a meandering manner in the heat exchanger 7, and fins laminated on the refrigerant pipe are inserted therethrough. As shown in FIG. 3 (the drain pan 8 is not shown). Tube end plates 13a and 13b for holding refrigerant tubes are provided at both ends of the laminated fins. Therefore, the tube end plates 13a and 13b define both ends of the heat exchanger 7.

The body 6 has a peripheral wall 6a, 6 around its periphery.
It is surrounded by four wall surfaces b, 6c, and 6d, and the plane is formed in a substantially square shape as a whole. These peripheral walls 6
Out of a, 6b, 6c, 6d, the peripheral walls 6a, 6b are located facing the tube end plates 13a, 13b of the heat exchanger 7, and the peripheral walls 6c, 6d allow wind to pass through the heat exchanger 7. It is located facing the heat exchange surface. Therefore, the peripheral walls 6a, 6b
Defines the air flow path, and blows out the wind that has passed through the heat exchanger 7
I will guide you to.

The peripheral walls 6a, 6b are concaves 15a, 1 recessed inside the main body 6 so that the air passages are narrowed at the corners of the air passages located on the heat exchanger 7 side for efficient heat exchange.
5b are formed. These recesses 15a and 15b are formed at right angles by two planes 17a, 18a and 17b, 18b, respectively. Similarly, recesses 15c and 15d are formed at the corners of the peripheral walls 6a and 6b on the side of the blower 5 and are formed at right angles by the two planes 17c and 18c and 17d and 18d. Thus, the concave portions 15a, 15
By forming b, 15c, and 15d, the above-described efficient heat exchange can be performed, and the air conditioner can be downsized.

Each recess 15a, 15b, 15c, 15d is formed to have a width H of about 70 mm and a depth T of about 30 mm. The width of the concave portion 15b is formed to be longer than the width of the other concave portions 15a and the like because the refrigerant pipe 20 for introducing the refrigerant into the heat exchanger 7 is arranged.

Hanging fittings 8a, 8b, 8c, 8d, which will be described later, are fixed to the recesses 15a, 15b, 15c, 15d, respectively. That is, a total of four hanging fittings 8 are provided at the corners of the four walls of the main body 6 corresponding to each recess, and each of the hanging fittings 8 is fixed to the bolt 12 hanging from the ceiling.

These four hanging metal fittings 8a, 8b, 8
In each of c and 8d, as shown in FIG. 4 and FIG.
A through hole 16 through which the bolt 12 is inserted and a guide groove 18 through which the bolt 12 is inserted from the side and is guided to the through hole 16 are formed in the metal fitting body 14. Two of the four hanging metal fittings 8b and 8d, which are arranged diagonally to each other, are provided in the guide groove 18
An opening / closing member 22 for opening and closing is provided so that the bolt 12 once engaged cannot be removed from the groove 18.

The hanging metal fittings 18b and 18d having such a structure
By using the bolt, the bolt 12 can be easily engaged from the side of the through hole 16 and cannot be easily removed after the engagement.

Each hanging metal fitting 8a, 8b, 8c, 8d is fixed at a position close to the corner 21 of the peripheral wall. In this way, the reason why it is positioned so as to overlap the corner 21 is that the strength of the corner is strong on the continuous surface such as the peripheral wall. 3 of the hanging fittings
The individual hanging metal fittings 8a, 8c, 8d are concave portions 15a, 15c,
It is arranged from corner 21 to corner 21 of 15d, and is fixed over the entire surface of the recess. That is, three hanging metal fittings 8
a, 8c, and 8d are corners 21 on both sides of the concave portion,
It is arranged so as to overlap 21 and has a width L from the corner 21 to the corner 21 that substantially matches the width H of the recess. By fixing the hanging metal fittings 8a, 8c, 8d in this manner, even if a force is applied to the portion fixed to the hanging metal fitting on the peripheral wall of the main body 6, the peripheral wall is prevented from being tilted or cracked due to breakage or deformation. Moreover, the main body 6 can be stably installed.

Next, the operation of this embodiment will be described.

When the air conditioner 1 is in operation, as shown by the solid line arrow in FIG. 2, the air blown by the blower 5 causes the air sucked from the suction port 3 in the center of the decorative plate 2 to pass through the heat exchanger 7. Then, the air after heat exchange is blown out from the outlet 4.

When the air conditioner 1 is installed, the suspension fittings 8a, 8b, 8c and 8d are fixed to the bolts 12 that are suspended from the ceiling of the main body 6 in advance. Fix with bolt 1
The bolt 12 is engaged with the guide groove 18 from the side of each metal fitting 8a, 8b, 8c, 8d.

At the time of or after the installation of the air conditioner, the three hanging metal fittings 8a, 8c, 8d are fixed to the entire surface of the concave portion from the corner 21 to the corner 21, so that the peripheral wall of the fixed portion is fixed. Because of its high strength, it is possible to prevent damage or cracks on the peripheral wall even if excessive force is applied to the fixed part due to shaking or the like. Further, the main body 6 can be prevented from falling and can be reliably and stably made.

The present invention is not limited to the above-described embodiments, but can be variously modified without departing from the gist of the present invention.

For example, at least one of the hanging fittings may be fixed from one corner to the other corner on one surface of the recess of the peripheral wall, and not all the hanging fittings are necessarily fixed from one corner to the other corner. In both cases, the effects of the present invention can be obtained.

[0030]

According to the first aspect of the present invention, since the hanging metal fitting is fixed from one corner to the other corner of the recess formed in the peripheral wall of the main body, the strength of the fixed portion of the peripheral wall can be increased. it can. Therefore, the hanging metal fitting can be fixed with sufficient strength, which prevents the main body from falling and can be securely installed.

In the second invention, in addition to the first invention,
Partial recesses facing the tube sheet on both sides of the heat exchanger housed in the body are formed. As described above, since both sides of the heat exchanger are recessed, the width of the ventilation passage for the air passing through the heat exchanger is narrowed according to the width of the heat exchanger. This allows efficient heat exchange when passing through the heat exchanger.

[Brief description of drawings]

FIG. 1 is a perspective view showing a suspended state of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of the air conditioner shown in FIG.

FIG. 3 is a cross-sectional view of the air conditioner shown in FIG.

FIG. 4 is a perspective view showing a suspended state of a conventional air conditioner for hanging metal fittings.

[Explanation of symbols]

 1 Air conditioner 6 Main body 6a, 6b, 6c, 6d Peripheral wall 8a, 8c, 8d Suspension metal fittings 15a, 15c, 15d Recess 21 Corner

Claims (2)

[Claims] 1. A ceiling-suspended air conditioner for suspending a main body by engaging a hanging metal fitting provided on the main body with a bolt hanging from a ceiling, wherein a concave portion forming a corner on a peripheral wall of the main body. The air conditioner is characterized in that the hanging metal fittings are fixed from one corner of one surface of the recess to the other corner. 2. A ceiling suspension type air conditioner for suspending a main body in which a heat exchanger is housed by engaging a hanging metal fitting provided in the main body with a bolt hanging from the ceiling, wherein the main body is A concave portion that forms a corner is formed on the peripheral wall facing the pair of tube sheets arranged on both sides of the heat exchanger, and the hanging metal fitting is fixed from the corner of the one surface of the concave portion to the corner. An air conditioner characterized by being present.