JP3365135B2 - Air conditioner - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, improvement of each part of a ceiling-embedded air conditioner over the entire system.
The present invention relates to an air conditioner capable of reducing the number of parts and cost.

[0002]

2. Description of the Related Art FIG.
It is an external view which notched one part which shows the prior art example shown by the 2nd publication. In the figure, 101 is a main body casing of the use side unit, and the use side heat exchanger 103 and the fan 111.
And so on. An air suction portion 109 is formed on the side surface of the main body casing 101. Further, three air blow-out portions 110, 110, 110 for changing the drawing direction of the duct 143 in three directions are formed on the front surface, the upper surface and the side surfaces of the main body casing 101 which are adjacent to each other. Here, a duct 143 is connected to the air outlet 110 on the side surface of the main body casing 101, and the duct 143 and the branch ducts that respectively lead the blown air to the two air conditioning required locations are connected via a bifurcated branch joint. Each is connected.

When the unit on the use side of the air conditioner is used as a ceiling-embedded unit, the air suction opening is usually used because the work is often performed from the ceiling opening facing the room, that is, from below the apparatus. , Provided on the lower surface of the main body casing. A decorative panel is attached to the ceiling opening below the lower surface suction opening so as not to impair the appearance of the ceiling.

[0004]

By the way, in the above-described ceiling-suspended air conditioner, the air suction portion cannot be opened to the lower surface of the main body casing due to the installation conditions in the ceiling, and unlike the conventional apparatus, for example. In some cases, there is no choice but to open on the side (including the back). However, since the air suction opening of the main body casing is provided only on the lower surface, there is a demand for newly providing the air suction opening on the back surface and realizing this with a simple and inexpensive structure.
In addition, if it is possible to realize a configuration that sucks air from the back side, it is considered that the mounting / removing direction of the air filter mounted on this back side suction opening also depends on the installation conditions in the ceiling. Installation of air filter
It is also necessary to consider the configuration related to the removal direction. On the other hand, there are cases where an inspection port for maintenance and inspection of the side of the main body casing is provided near the air intake port on the ceiling, and this inspection port has an inspection port lid different from the decorative panel for the air intake port. It is installed. Therefore, the ceiling is not as simple as it looks, and it is necessary to install inspection ports and inspection lids. On the other hand, with regard to the connection structure for connecting the air outlet 110 and the duct 143, a simple structure that facilitates the connection work has been desired.

Therefore, the present invention has been made in view of the above-mentioned problems of the prior art, and the configuration of each part over the entire air conditioning system can be realized simply with a small number of parts and with good workability in mounting. It is intended to provide an air conditioner.

[0006]

In order to achieve the above object, an air conditioner according to the present invention comprises an air suction portion formed at a rear end portion of a casing for sucking air from the inside of the chamber, and an air suction portion formed at a front end portion of the casing. In an air conditioner having a main body casing that has an air blowout part that blows out air to the inside, and that is equipped with a blower and the like, and that is provided in the ceiling above the ceiling opening facing the room, an air suction part of the main body casing. A lower surface suction opening is formed on the lower surface, a rear surface suction opening of the same size as the lower surface suction opening is formed on the rear surface of the air suction portion of the main body casing, and either the lower surface suction opening or the rear surface suction opening is detachably sealed. If a common lid plate is provided and suction is performed on the bottom surface, open the back suction with the common lid.
Cover the mouth and attach the air filter to the bottom of the common lid
Holds with the rear edge of the closing plate attached to the rear edge of the bottom plate
However, in the case of back suction, open the bottom suction with the common lid plate.
Cover the mouth and place the air filter with the rear edge of the top plate of the casing.
It is held by the rear end of the lid .

[0007]

[0008]

Further, it has an air suction portion formed at a rear end portion of the casing for sucking air from the room, and an air blowing portion formed at a front end portion of the casing for blowing air into the room, and also has a blower and the like inside, and In an air conditioner equipped with a main body casing arranged in the ceiling above the ceiling opening facing the room, a plurality of blowout flanges are formed at a predetermined pitch on the main body casing of the air blowout part, and one end connectable with the blowout flange At least 2 having a collecting duct part having a side connecting port and another end side connecting port formed by branching from the collecting duct part and arranged at a pitch corresponding to the blowing flange and connectable to each blowing flange.
It comprises a connection duct integrally molded with two branch ducts.

[0010]

In the invention according to claim 1, the common lid body is used.
Seals either the bottom suction opening or the back suction opening
In addition, when using the bottom suction, use a common lid
Cover the surface suction opening and attach the air filter to the lower end of the common lid.
The rear edge of the closing plate attached to the rear edge of the bottom plate of the casing
When holding with and sucking from the back, use the common lid plate
Cover the surface suction opening and attach the air filter to the top plate of the casing.
It is held by the rear end and the rear end of the common lid . Therefore, the air suction specification can be easily switched between the lower suction specification and the rear suction specification with a simple structure.

[0011]

[0012]

Further, in the invention according to claim 2 , the connection duct is integrally formed. Therefore, the structure is simple and the number of parts is small. Further, the amount of blown air is adjusted depending on the connection mode of the connection duct.

[0014]

【Example】

Example 1. 1 is a right side view showing a main body casing of Embodiment 1 of an air conditioner according to the present invention, FIG. 2 is an external view of the main body casing as seen from a diagonally lower right rear side, and FIG. 3 is a perspective view of the main body casing as seen from a diagonal lower right rear side. Exploded perspective view, FIG.
FIG. 5 is a state explanatory view showing a state when the main body casing is of a lower surface suction type, and FIG. 5 is a state explanatory diagram showing a state when the main body casing is of a rear surface suction type. 1 in each figure
Is a main body casing on the side of the user in this air conditioner, and is formed by screwing a top plate 2, a right side plate 3, a left side plate 4, a bottom plate 5, a front plate 6, and a common lid plate 7. At the front end of the main body casing 1, an air blow-out portion 10 for blowing air into the room is formed, and a blow-out flange 8 for connecting the duct 43 (see FIG. 10) is attached with the air blow-out portion 10 being covered. There is. Further, 11 is a motor 11a (see FIG.
And a sirocco fan (not shown), which constitutes a blower, 15 is a blower stand arranged in the main body casing 1 while supporting the fan casing 11 and the motor 11a, and 16 is an air filter 1.
A closing plate attached to the rear end of the bottom plate 5 so as to be able to support 7
Reference numeral 50 is a humidifying element mounting portion for humidifying blown air after air conditioning. The main body casing 1 is arranged in a ceiling above a ceiling opening (not shown) facing the room, and is a so-called outdoor that houses refrigerant cycle elements such as an accumulator, a compressor, a four-way switching valve, and an outdoor heat exchanger. It is connected to the machine (all devices are not shown) by piping.

In the main body casing 1, in particular, a lower surface suction opening 9 is formed on the lower surface of the rear end portion of the main body casing 1, and the rear surface of the main body casing 1 has substantially the same size as the lower surface suction opening 9. A back surface suction opening 9a continuous with the lower surface suction opening 9 of the lever is formed. And the common lid plate 7
Is detachably screwed to the side plates 3 and 4 and the closing plate 16 so as to seal either the lower surface suction opening 9 or the rear surface suction opening 9a. At this time, the air filter 17 is attached to the lower surface suction opening 9 or the rear surface suction opening 9a.
As described above, the air suction portion (not shown in the figure) is constituted by the lower surface suction opening 9 and the rear surface suction opening 9a which are switched depending on the mounting position of the common lid plate 7.

In the air conditioner according to the first embodiment, when the normal lower surface suction specification is adopted, the common cover plate 7 is mounted so as to cover the rear surface suction opening 9a and is screwed to the rear ends of the side plates 3 and 4. At this time, the air filter 17 is held by the lower end of the common lid plate 7 and the rear end of the closing plate 16. Therefore,
When changing to the rear suction specification, the common lid plate 7 is removed from the rear suction opening 9a, and the air filter 17 is also removed from the lower suction opening 9. Then, the common cover plate 7 is mounted so as to cover the lower surface suction opening 9 and is screwed to the lower ends of the side plates 3 and 4 and the rear end of the closing plate 16, and the air filter 17 also covers the rear end of the top plate 2 and the common cover plate 7. Holds at the rear end. As a result, the air suction specification is changed as shown in FIGS.

Therefore, since the common cover plate 7 is detachably provided on the main body casing 1 so as to selectively seal either the lower surface suction opening 9 or the rear surface suction opening 9a, it has a simple structure. Yes, there is no need to prepare a separate component for that. Further, with such a configuration, the air suction specification can be easily switched between the lower suction specification (normal specification) and the rear suction specification (changed specification).

Example 2. FIG. 6 is a perspective view of the main body casing and the filter accommodating cylinder of the second embodiment of the air conditioner according to the present invention, which is looked up from the lower right rear side. However, the same parts as those of the air conditioner of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. In the figure, 20
Is a filter housing cylinder connected to the back suction opening 9a and housing the air filter 17 covering the back suction opening 9a, and 21 is formed by being opened on the lower surface of the filter housing cylinder 20 so that the air filter 17 can be vertically inserted. 1 is a first filter mounting opening, and 22 is a second filter mounting opening formed on the right side surface of the filter housing cylinder 20 and capable of laterally inserting the air filter 17. However, the second filter mounting port 22
Can also be provided on the left side surface of the filter housing cylinder 20. The filter housing cylinder 20 is screwed to the rear ends of the side plates 3 and 4, respectively. In addition, the filter housing cylinder 20
First filter mounting opening 21 and second filter mounting opening 2
2 is normally sealed by an opening / closing cover.

The air conditioner according to the second embodiment is set to the rear suction specification. Therefore, the air filter 17
Is normally inserted from the first filter mounting opening 21 of the filter housing cylinder 20 and covers the back suction opening 9a. However, when it is difficult to insert and remove the air filter 17 from below, and there is a maintenance space on the side, the air filter 17 is loaded from the second filter mounting port 22.

Therefore, the rear suction type air conditioner is
The air filter 17 can be attached / removed from below or from the side depending on the surrounding conditions in the ceiling where the main body casing 1 is installed. As a result, service workability and installation workability can be improved. In addition, restrictions on installation conditions in the ceiling are reduced.

Example 3. FIG. 7 is an exploded view showing a main body casing and a decorative panel of Embodiment 3 of the air conditioner according to the present invention, FIG. 8 is an external view showing a decorative panel, and FIG. 9 is a mounting mode of the main body casing and the decorative panel of each size. It is a state explanatory view shown. However, the same components as those of the air conditioners of Embodiments 1 and 2 are designated by the same reference numerals, and detailed description thereof will be omitted. In each figure, 32 is a decorative panel of a normal size corresponding to the opening size of the lower surface of the main body casing 1, 32a is a decorative panel having a size one rank larger than the decorative panel 32 in the direction perpendicular to the air blowing direction (direction of arrow F). The decorative panels 32 and 32a are detachably attached to the lower portion of the main body casing 1 in a state of covering the ceiling opening. The decorative panel 32a has a panel support 34.
Is arranged so as to be in the same position as the panel end portion 35 of the normal-sized decorative panel 32.

In the air conditioner according to the third embodiment, the panel end portions 35 and 36 of the decorative panel 32 are screwed to the lower end portions of the side plates 3 and 4 with stepped screws 33. On the other hand, the makeup panel 32a that is one rank larger is
The part of the panel support 34 and the panel end 36 is the side plate 3,
It is screwed to the lower end of 4 with a stepped screw 33. As a result, when the makeup panel 32a is attached, the makeup panel 3
The portion of the 2a from the panel support 34 to the panel end portion 36 projects laterally of the main body casing 1, and the upper space thereof is effectively used, for example, as a maintenance space for the humidifying element. As shown in FIG. 9, the decorative panel having a size larger by one rank as described above means that when there are several types of use-side units having different sizes according to their capabilities, the direction of air flow is higher than that of the decorative panel corresponding to each size. Refers to a makeup panel that is one size larger in the perpendicular direction. Therefore, as is clear from FIG. 9, the number of types of main body casings (here, four types of main body casings 1, 1a, 1
b, 1c are illustrated) and one more type (ie, 5
Types) makeup panels 32, 32a, 32b, 32c, 3
Prepare 2d.

As described above, the decorative panel having a size one rank larger than the normal-sized decorative panel can be attached to the lower portion of the main body casing. As a result, by simply removing the decorative panel 32a from the ceiling opening, the maintenance space can be secured not only directly under the main body casing, but also laterally in the direction perpendicular to the air blowing direction. That is, a commercially available inspection palate or the like can be shared by one-size larger decorative panel.

Example 4. FIG. 10 is a connection state diagram showing a main body casing and a connection duct of Embodiment 4 of the air conditioner according to the present invention, and FIG. 11 is a connection state diagram showing a state in which the duct is connected to each port of the connection duct. However, Example 1
The same parts as those of the air conditioners 3 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted. In these drawings, reference numerals 8, 8 and 8 denote blow-out flanges provided side by side on the front plate 6 of the main body casing 1 at a predetermined pitch P. Further, 40 is a collective duct part 41 having one end side connection port 42a connectable to the blow-off flange 8 and branch duct parts 42, 42 formed by bifurcating from this collective duct part 41, which are made of synthetic resin. It is a molded connection duct. In this case, the branch duct portions 42, 42 are arranged at the pitch P corresponding to the blow-off flanges 8, 8, 8 and connectable to the respective blow-off flanges 8, 8 and the other end side connection port 42.
a and 42a. The number of the branch duct parts 42 branched from the collecting duct part 41 is not limited to two, but may be three or more, for example, according to the pitch P of the blow-off flange 8. The material of the connection duct 40 is not limited to synthetic resin, but may be sheet metal or the like.

In the air conditioner according to the fourth embodiment, the branch duct portions 42, 42 of the connection duct 40 and the blow-out flanges 8, 8 are provided with two holes at each other, and the wire 44 or the like is passed through the hole. Fixed. In FIG. 10, the branch ducts 42, 42 are connected to the main body casing 1 side, but conversely, the connection to the outlet flange 8 is one port (one end side connection port 42) and two ports (the other end side). Connection ports 42a, 4
It is also possible to connect 2a) to two ducts 43 with a band 45. On the other hand, the connection between the ducts 43, 43 is as shown in FIG.
The ducts 43 are inserted into the cables 2 and 42, respectively, and fixed by the band 45.

As described above, since the connecting duct 40 is simply formed of synthetic resin or the like by integral molding, the number of parts can be reduced. Further, the connection work of the duct 43 can be easily performed. And the connection duct 40
Depending on the connection mode, the air flow rate can be adjusted. Furthermore, the unnecessary blowing flange 8 (in FIG. 10, for example, the blowing flange 8 at the central position) can be sealed by the surplus other end side connection port 42a of the connecting duct 40, and a closing lid (not shown) for that can be provided. Not required separately.

[0027]

Since the present invention is constructed as described above, it has the following effects. Since the common lid plate is detachably sealed in either the lower suction opening or the rear suction opening, the air suction specification can be changed from the lower suction specification (normal specification) to the rear one with a simple configuration without increasing the number of parts. You can easily switch to the suction specification (changed specification).

Further, in the case of the rear suction type, the air filter can be inserted from the first filter mounting opening or the second filter mounting opening of the filter housing cylinder connected to the back suction opening, so that the main body casing The air filter can be installed or removed from below or from the side depending on the surrounding conditions in the ceiling where the is installed. Therefore,
Service workability and installation workability can be improved, and installation conditions in the ceiling can be eased.

Further, since the decorative panel, which is set to a size one rank larger than the normal size in the direction perpendicular to the blowing direction, is attached to the lower portion of the main body casing, this decorative panel is simply removed from the ceiling opening. so,
It is possible to secure a working space not only below the main body casing but also on the side of the main body casing in a direction perpendicular to the blowing direction. That is, a commercially available inspection palate or the like is not required, and this can be shared by the decorative panel.

Further, since the connecting duct consisting of the collecting duct part and the branching duct part is integrally molded, the number of parts can be reduced, and the air volume can be adjusted depending on the connection mode of the connecting duct. Moreover, it is possible to realize the omission of the duct construction, and also to use the parts such as sealing the obstruction lid for sealing the unnecessary blowing flange with the surplus other end side connection port of the connection duct. .

[Brief description of drawings]

FIG. 1 is a right side view showing a main body casing of Embodiment 1 of an air conditioner according to the present invention.

FIG. 2 is an external view of the main body casing of the first embodiment, which is looked up from a diagonally right rear side.

FIG. 3 is an exploded perspective view of the main body casing according to the first embodiment, which is looked up from diagonally right rearward and downward.

FIG. 4 is a state explanatory view showing a state in which the main body casing of the first embodiment is a bottom suction type.

FIG. 5 is a state explanatory view showing a state in which the main body casing of the first embodiment is of a back suction type.

FIG. 6 is a perspective view of a main body casing and a filter housing cylinder of a second embodiment of an air conditioner according to the present invention, which is looked up from the lower right rear side.

FIG. 7 is an exploded assembly view showing a main body casing and a decorative panel of Embodiment 3 of the air conditioner according to the present invention.

FIG. 8 is an external view showing a decorative panel of Example 3.

FIG. 9 is a state explanatory view showing a mounting manner of a main body casing of each size and a decorative panel according to the third embodiment.

FIG. 10 is a connection state diagram showing a main body casing and a connection duct of Embodiment 4 of the air conditioner according to the present invention.

FIG. 11 is a connection state diagram showing a state in which a duct is connected to each port of the connection duct of the fourth embodiment.

FIG. 12 is a partially cutout external view showing a usage-side unit of a conventional air conditioner.

[Explanation of symbols]

1 main body casing, 1a main body casing, 1b main body casing, 1c main body casing, 7 common lid plate, 8
Blow-out flange, 9 lower face suction opening, 9a rear face suction opening, 10 air blow-out part, 11 fan casing, 17
Air filter, 20 Filter housing cylinder, 21 1st
Filter mounting port, 22 second filter mounting port, 32
Makeup panel, 32a makeup panel, 32b makeup panel, 32c makeup panel, 32d makeup panel, 40
Connection duct, 41 Collecting duct part, 41a One end side connection port, 42 Branch duct part, 42a Other end side connection port, 50
Humidifying element mounting part, S size difference, F arrow, P
pitch.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Munehiro Yamanaka 6-5-66 Teira, Wakayama City Mitsubishi Electric Engineering Co., Ltd. Itami Works Wakayama Branch (72) Inventor Katsuhiko Hayashida 6-5 Tedaira, Wakayama City No. 66 Mitsubishi Electric Engineering Co., Ltd. Itami Works, Wakayama Branch (56) References JP 61-240039 (JP, A) JP 62-202958 (JP, A) JP 5-196291 (JP, A) ) Actually open 61-142231 (JP, U) Actually open 63-32228 (JP, U) Actually open 5-36210 (JP, U) Actually open 6-78027 (JP, U) Actually open 2- 86619 (JP, U) Actual opening 4-95215 (JP, U) Actual opening 58-60121 (JP, U) Actual opening 63-129127 (JP, U) Actual opening Sho 59-189022 (JP, U) (58) investigated the field (Int.Cl. ⁷ DB name) F24F 1/00

Claims (2)

(57) [Claims] 1. An air suction portion formed at a rear end portion of a casing for sucking air from a room, an air blowing portion formed at a front end portion of the casing for blowing air into the room, and having a blower or the like as an interior, and In an air conditioner equipped with a main body casing disposed in a ceiling above a ceiling opening facing the room, a lower surface suction opening is formed on a lower surface of an air suction portion of the main body casing, and the air suction portion is provided on a rear surface of the main body casing. to form the rear suction opening of the lower surface suction opening substantially the same size, the bottom surface suction opening or the rear suction common cover plate for removably sealing one of the openings provided, in the case of the lower surface suction, the Back with a common lid
Cover the suction opening and attach the air filter to the lower end of the common lid.
And a cover attached to the rear end of the bottom plate of the casing.
When holding with the back end of the plate and sucking in the back,
Cover the bottom suction opening with a common lid plate and
Hold it with the rear edge of the top plate of the casing and the rear edge of the common lid.
For example the air conditioning apparatus characterized by that. 2. An air suction part formed at the rear end of the casing for sucking air from the inside of the room, and an air blowing part formed at the front end of the casing for blowing air into the room, and having a blower and the like inside, and In an air conditioner provided with a main body casing arranged in a ceiling above a ceiling opening facing the room, a plurality of blowout flanges are formed at a predetermined pitch on the main body casing of the air blowout section, and the blowout flanges are connected to the main body casing. A collecting duct portion having a connectable one end side connecting port, and another end side connecting port formed by branching from the collecting duct part and arranged at a pitch corresponding to the blowing flange and connectable to each blowing flange. An air conditioner comprising a connection duct integrally formed with at least two branch duct portions.