JP3120798B2 - Air conditioner indoor unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of an air conditioner, and more particularly, to an arrangement structure of components in a casing.

[0002]

2. Description of the Related Art Conventionally, an indoor unit of an air conditioner generally has an air passage communicating from the air inlet to the air outlet inside a casing having an air inlet for sucking indoor air and an air outlet for blowing out conditioned air. While the passage is formed, in the air passage, a fan that sucks room air from the suction port and discharges it to the outlet side, and a heat exchanger that generates conditioned air from the room air are arranged. I have.

There are various ways of arranging a fan and a heat exchanger in a casing. For example,
Japanese Patent No. 15494 discloses that a centrifugal fan is disposed in a horizontally elongated rectangular parallelepiped casing so that the rotation axis is vertical, and conditioned air is supplied from three directions from outlets formed on the front surface and both side surfaces of the casing. Is disclosed. In this example, a substantially U-shaped heat exchanger in plan view is used.
The fan is arranged so as to be located on the front side and the side of the fan. The room air is passed through the fan and the heat exchanger in order to generate conditioned air, and then blown out from the outlet into the room.

[0004]

However, in such an indoor unit in which conditioned air is blown in three directions from the front surface and both side surfaces of the casing, a gap between the rear surface of the casing and the fan becomes dead space. There is a problem that the size of the casing is easily hindered.

Further, it is conceivable to apply a structure in which a plurality of fans are arranged side by side in the casing of the indoor unit. However, in this case, if the space between the fans is narrowed, for example, even if a partition plate is provided between the fans, the flow of the blown air tends to be disturbed between the fans. An interval is required. For this reason, there has been a problem that a portion between the fans becomes a dead space, which hinders downsizing of the casing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to produce an air conditioner indoor unit having a front air outlet and a side air outlet around a fan. The purpose is to reduce the dead space and downsize the entire device.

[0007]

According to the present invention, the space in the casing is effectively used by setting a part which has been a dead space around the fan in the past as a space for installing parts. is there.

Specifically, the first solution taken by the present invention is to provide a casing (10) with a suction port (41) for sucking room air from below, and a front side for blowing conditioned air forward of the casing (10). An outlet (43) and a side outlet (44) for blowing conditioned air to both sides of the casing (10) are formed.
Inside the (10), a fan (20
R, 20L) and a heat exchanger (30) for generating conditioned air are assumed to be indoor units of an air conditioner. And
Before the heat exchanger (30) is located along the front outlet (43)
It is arranged along the side heat exchange part (31) and the side outlet (44)
Side heat exchanger (32), and the fans (20R, 20L)
Heat exchange on the back (10b) of the single (10) and forward of the heat exchanger (30)
It is arranged between the section (31) and the side heat exchange section (32). Ma
In addition, the back (10b) of the casing (10) and the fan (20R, 20L) and side
Air-conditioning parts (61) in the gap (S1) between
Is arranged. In this configuration, the fan (20R, 20R
L) may be one or a plurality.

[0009] The second solution taken by the present invention is:
The assumed air conditioner is the same as the first solution.
The heat exchanger (30) is arranged along the front outlet (43).
Forward heat exchange part (31) and side air outlet (44)
Side heat exchange section (32), and the fans (20R, 20L)
The rear surface (10b) of the casing (10) and the heat in front of the heat exchanger (30)
A plurality of units are arranged in parallel between the exchange unit (31) and the side heat exchange unit (32).
Is placed. Then, forward heat exchange with each fan (20R, 20L)
Air-conditioning component (61) in the gap (S2) surrounded by the switching part (31).
Are located.

[0010] A third solution taken by the present invention is:
The air conditioner to be used is the same as the first solution. The heat exchanger (30) includes a front heat exchange part (31) arranged along the front outlet (43) and a side outlet. (44) along with a side heat exchange part (32), the fan (20R, 20L),
A plurality of units are arranged in parallel between the rear surface (10b) of the casing (10), the front heat exchange unit (31) and the side heat exchange unit (32) of the heat exchanger (30).
Is placed. And the back (10b) of the casing (10)
An air-conditioning component (61) is arranged in a gap (S3) surrounded by the fans (20R, 20L) .

In the first to third configurations,
The heat exchanger (30) has a front heat exchange section (31) and a side heat exchange section (32).
May be integrated into a substantially U-shape in plan view,
The exchange part (31) and the side heat exchange part (32) are
May be separately arranged.

A fourth solution taken by the present invention is:
In any one of the first to third solving means,
Parts are switch boxes (61).
The fifth solution taken by Akira is any one of the first to third aspects.
In one solution, the air conditioning component is a drain pump.
It is a thing.

-Operation-In each of the above solutions , the fan (20
(R, 20L), the indoor air flows from below the casing (10) of the indoor unit (1) through the suction port (41) into the casing (10).
It is sucked in. The room air is heated or cooled in the heat exchanger (30) to form conditioned air, and the air is discharged from the outlets (43, 4).
4) is blown out into the room. At that time, the conditioned air is blown out of the front outlet (43) to the front of the casing (10),
The air is blown out from the side outlet (44) to the side of the casing (10). That is, conditioned air is blown in three directions, that is, the front and both sides.

After the room air is sucked into the casing (10) , the room air heated or cooled in the front heat exchange section (31) is blown into the room from the front air outlet (43), and the side heat exchange is performed. The material heated or cooled in the section (32) is blown into the room from the side air outlet (44).

In the second and third solutions, a plurality of fans (20R, 20L) are provided inside the casing (10).
Are arranged in parallel, conditioned air is blown sufficiently to the front and side of the casing (10) and supplied to the room as compared with the case where only one fan is provided.

[0016]

According to the first solution, the rear surface (10b) of the casing (10), the fans (20R, 20L), and the side heat exchange portions (3
The air conditioning component (61) is located in the gap (S1) between
Therefore, this void (S1) is effectively used to
(10) can be reduced in size.

Further , according to the second and third means,
If multiple fans (20R, 20L) are used, conditioned air
It can be blown well to the front and side of the casing (10)
Thus, the conditioned air can be more uniformly supplied to the room. And
The second solution is to exchange heat with each fan (20R, 20L)
Air conditioning component (61) is placed in the gap (S2) surrounded by the
In the third solution, the rear surface (10
b) and each fan (20R, 20L) surrounded by air gap (S3)
Parts (61) are arranged, and the fourth and fifth solutions
In the decision method, the air-conditioning parts should be
And drain pump, these voids (S2, S
Effective use of 3) to reduce the size of the casing (10)
be able to.

[0018]

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

As shown in FIG. 1, the indoor unit (1) of the air conditioner of the present embodiment is installed at a corner formed by a ceiling (71) and a side wall (72) of a room. The indoor unit
Although (1) is not shown in FIG. 1, the casing (10) is connected to a ceiling (71) or a side wall through a mounting bracket (installation tool) described later.
(72).

The casing (10) is composed of a main body (11) formed in a flat horizontally long rectangular parallelepiped shape, and a bulging portion (13) bulging downward from the bottom surface of the main body (11). I have. In the installed state, the main body (11) of the casing (10) is located along the ceiling (71) of the room, and is formed in a shape having a small vertical thickness so that the amount of protrusion from the ceiling (71) is reduced. ing.

The bulging portion (13) of the casing (10) is shown in FIG.
As shown in FIG. 3 and FIG. 3, on the bottom surface of the main body (11), the main body (11) is configured to gradually project downward from the front to the rear. That is, in the installation state, the bulging portion (13)
Is configured to gradually project downward toward the side wall (72) of the room.

Specifically, the front surface or the lower surface of the bulging portion (13) is formed as an inclined surface (14) gently downwardly inclined from the front side to the rear surface, which is continuous with the main body (11). As a whole, (10) is formed to be thinner on the front side than on the rear side. On the other hand, the back surface of the bulging portion (13) is formed on a vertical rising surface (15) along the side wall (72) of the room, and is continuous with the back surface of the main body (11). Further, both side surfaces of the bulging portion (13) are continuous with side portions on the lower surface of the main body (11).

Further, the inclined surface (14) of the bulging portion (13)
Is located slightly behind the front end of the main body (11), and both sides of the bulging portion (13) are located slightly inside the both ends of the main body (11). A projecting edge (12) projecting forward and on both sides from the bulging portion (13) is formed at the front and both sides of the main body (11). The protruding edge (12), that is, the front edge and both side edges of the main body (11) of the casing (10) are configured by combining curved surfaces as shown in FIGS. It has a somewhat rounded shape.

The casing (10) is provided with a suction port (41) for sucking room air into the casing (10) from below and outlets (43, 44) for blowing conditioned air into the room. The suction port (41) is formed on the inclined surface (14) of the bulging portion (13) of the casing (10). On the other hand, the outlet (43,44)
Is formed from the front surface to both side surfaces of the main body (11) of the casing (10). And among the outlets (43,44)
The part that opens to the front of the main body (11) is at the front outlet (43),
Left and right side outlets are open at both sides of the main body (11).
(44). Also, as mentioned above,
Since the main body (11) of the casing (10) is formed with a protruding edge (12), the inlet (41) and the outlets (43, 44)
They are located at a predetermined distance from each other.

On the other hand, as shown in the exploded perspective view of FIG. 2, the casing (10) has a top plate (10a), a back plate (10b), and front plates (10c, 10c).
d) and left and right side plates (10e). Top plate (10
a), the back plate (10b) and the front plate (10c, 10d) are members that are fixed and integrated with each other, and the side plate (10e) is a top plate (10a), a back plate.
(10b) and the front plates (10c, 10d).

The front outlet (43) is connected to the front plates (10c, 10c).
d), and a horizontal flap (51) is arranged at the front outlet (43). The horizontal flap (51)
The stay (51a) holds the outlet angle of the front outlet (43) in an adjustable manner, and the stay (51a) has a horizontal flap (51).
Is provided with a swing unit (51b) for changing the angle. The side plate (10e) has side air outlets (44).
In order to be able to manually adjust the blowing direction of the conditioned air in (1), a horizontal flap (51), the horizontal flap (51)
A swing mechanism (not shown) for adjusting the angle of the camera is incorporated.

Inside the casing (10), a suction port (4
An air passage (45) communicating from 1) to each of the outlets (43, 44) is formed. In the air passage (45), two fans (20R,
0L) and a heat exchanger (30) that produces conditioned air from indoor air
And are arranged. In addition, below the centrifugal fans (20R, 20L), an air filter (65) is arranged near the suction port (41).

Each fan (20R, 20L) is configured as a so-called turbo fan, which is a kind of centrifugal fan. A drive shaft (26) of a fan motor (25) extending in a vertical direction (up-down direction) is connected to the fans (20R, 20L). And
The fans (20R, 20L) are rotatably driven by a fan motor (25), and discharge air sucked from below to the side.

Each fan (20R, 20L) has a fan motor (25) mounted on a top plate (10a) of a main body (11) of a casing (10).
The top plate (10a) is attached to the casing (10) by being attached from the lower surface side. Each fan (20R, 20
L), a bell mouth (2) for guiding the room air flowing into the air passage (45) from the suction port (41) to the fans (20R, 20L).
7) is located.

Each fan (20R, 20L) is provided in parallel within the main body (11) of the casing (10) at a predetermined interval in the width direction of the main body (11). Has a partition plate (64) provided between the two centrifugal fans (20R, 20L). That is, the casing (10) includes a right fan (20R) located on the right and a left fan (20L) located on the left when viewed from the front of the casing (10) with the partition plate (64) interposed therebetween. Is provided. In addition, both fans (20R, 20L)
It is configured to rotate clockwise as viewed from above the casing (10).

On the other hand, the heat exchanger (30) is provided inside the main body (11) of the casing (10). The heat exchanger (30) is
As shown in FIG. 4, a front heat exchange part (31) located on the front side in the main body (11) of the casing (10) and a side heat source located on the side face in the main body (11) of the casing (10). From the heat exchange section (32),
It is formed in a substantially U-shape in plan view. This heat exchanger (30)
Although not shown, a so-called cross-fin heat exchanger composed of a number of plate-shaped fins and heat transfer tubes provided through the fins is configured. The fins are arranged in parallel with each other except for a corner between the front heat exchange section (31) and the side heat exchange section (32), and the angle of the corner is gradually increased according to the curved shape of the heat transfer tube. Is changing.

In this example, the heat exchanger (30) is formed in a substantially U-shape in plan view by integrating the front heat exchange part (31) and the side heat exchange part (32). Alternatively, the front heat exchanging section (31) and the side heat exchanging section (32) may be provided separately and arranged separately. Each of the fans (20R, 20L) is surrounded by a front heat exchange section (31) and a side heat exchange section (32) of the heat exchanger (30), and a back surface (10b) of the casing (10). Are arranged side by side in a space that has been set aside.

On the upper side of the heat exchanger (30), a heat exchanger (30)
A heat insulating material (35) which is formed in a substantially U-shape in plan view is disposed. On the lower surface side of the heat exchanger (30), a drain pan similarly formed in a substantially
(36) is provided. As a material of the heat insulating material (35) and the drain pan (36), for example, styrene foam or the like can be used.

FIGS. 4 to 6 are layout diagrams showing the positional relationship of each device in the casing (10).
0) and only the external shape of each device is simplified. The inside of the bulging portion (13) is configured to store, for example, either one of a high-performance air filter and a deodorizer as a storage space for the optional item (60). Note that a so-called HEPA filter or an electrostatic filter can be used as the high-performance air filter, and a light deodorizing unit that deodorizes odorous substances using a photocatalyst can be used as the deodorizer.

In a space (S4) between the left and right centrifugal fans (20R, 20L), a switch box (61) containing switch contacts of internal devices of the indoor unit (1) is arranged. .
Note that a drain pump may be provided instead of the switch box (61). Further, a back plate (10b), which is a member constituting the back surface of the casing (19), and a centrifugal fan (20R, 20R).
L), a refrigerant pipe (62a) and a drain pipe (62b) are provided along the back plate (10b). (63) shows a pipe cover, and both pipes (62a, 6
2b) has been passed.

On the other hand, the casing (10) of the indoor unit (1)
Can be connected to the ceiling (71) or the wall (7) via the fixture (80) shown in FIG.
It is configured so that it can be fixed to either of 2). The fixture (80) is composed of a plate (81) in contact with the back plate (10b) of the casing (10), and two arms fixed to the plate (81).
(82). Although not shown in detail in FIG. 2, the arm (82) and the top plate (10a) of the indoor unit (1) include:
A through-hole corresponding to the suspension bolt provided on the ceiling is formed, and a through-hole for fixing the bolt to the wall (72) is formed in the plate (81) of the fixture (80). further,
The fixture (80) is provided with a temporary fixing mechanism that engages with the casing (10) of the indoor unit (1).

When the indoor unit (1) is fixed to the wall (72), the plate (81) of the fixture (80) is attached to the wall (72), and then the casing (10) is attached to the fixture (80). ), And the indoor unit (1) is fixed to the arm (82) using the through holes for the suspension bolts. When fixing the indoor unit (1) to the ceiling,
After fixing the fixture (80) to the suspension bolts,
(10) can be temporarily fixed to the fixture (80), and the casing (10) can be fixed to the suspension bolt.

-Operation-The air-conditioning operation of the indoor unit (1) will be described.
The (20R, 20L) is driven and rotated by the fan motor (25), and sucks room air from the suction port (41) into the casing (10). The room air drawn into the casing (10) flows through the air passage (45), passes through the bell mouth (27), and passes through the fan (20).
R, 20L), flows out to the side of the fan (20R, 20L), and heads toward each outlet (43, 44).

The indoor air passes through the heat exchanger (30) when heading for the outlets (43, 44). Although not shown, the refrigerant of the refrigeration circuit flows through the heat exchanger (30). In the heat exchanger (30), during the cooling operation, the refrigerant exchanges heat with the indoor air and evaporates, and cools the indoor air to generate low-temperature conditioned air. In the heating operation, the refrigerant exchanges heat with indoor air to condense, and heats the indoor air to generate high-temperature conditioned air. Therefore, from the outlet (43,44)
The conditioned air generated in the heat exchanger (30) is blown into the room in three directions.

The suction port (41) and each of the air outlets (43, 44)
Is a predetermined distance from each other, so that each outlet (4
The so-called short circuit of air, in which the conditioned air blown out from 3,44) is sucked in again from the suction port (41), does not occur.

According to the present embodiment, two centrifugal fans (20R, 20L) are disposed in the casing (10), and the switch box (61) and the drain are disposed in the space (S4) therebetween. Since the pump is arranged, the space between the centrifugal fans (20R, 20L) is not wasted, and the space in the casing (10) can be used effectively. Therefore, the size of the casing (10) can be reduced.

A refrigerant pipe (62a) and a drain pipe are provided between the back plate (10b) of the casing (10) and the centrifugal fans (20R, 20L).
(62b), the space on the back side of the centrifugal fans (20R, 20L) can be effectively used, and the casing (10) can be reduced in size. This effect is the same even when the number of fans is one. In addition, the refrigerant pipe
(62a) and drain pipe (62b), the casing (1
Since the external piping can be connected from the side of (0), the degree of freedom of installation of the indoor unit (1) can be increased.

-Modification of Embodiment- In the above embodiment, in FIG. 4, a switch box is provided as an air conditioning component in a gap (S4) between the fans (20R, 20L).
It is an example of arranging the (61), the present invention provides a component for air-conditioning, such as the switch box (61), the back of the casing (10) (10b)
And the air gap between the fan (20R, 20L) and the side heat exchange part (32)
(S1) (in this case, the fan (20R, 20L)
Can be placed in a gap (S2) surrounded by each fan (20R, 20L) and the front heat exchange section (31), or can be disposed in the back (10b) of the casing (10) and each It is placed in a gap (S3) surrounded by fans (20R, 20L) .

[0044]

Other Embodiments of the Invention The present invention may be configured as follows with respect to the above embodiment. For example, in the above embodiment, two fans (20R, 20L) are provided, but one or three or more fans (20R, 20L) may be provided according to the air conditioning capacity of the indoor unit (1). The fan (2
0R, 20L) is constituted by a turbo fan, but may be constituted by a radial fan or a fan other than a centrifugal fan.

Further, the casing (10) is not limited to the one composed of the main body (11) and the bulging portion (13), and may be , for example, an entirely rectangular parallelepiped .

The fan (20R, 20L) and the casing (10)
The air conditioning components that can be placed between the rear of the unit and between the two fans (20R, 20L) include a switch box (61), a drain pump,
Not only the refrigerant pipe (62a) and the drain pipe (62b), but also any air conditioning component may be appropriately selected and arranged.

Further, as in the above embodiment, the front outlet is
When disposing the fan (20R, 20L) in the casing (10) of the indoor unit (1) having the (43) and the side outlet (44), the fan (20R, 20L) used Regardless of the number of casings
Since the corners of (10) tend to be dead spaces, arranging air-conditioning components in the corners can make more effective use of space, and further reduce the size of the casing (10). Becomes possible.

[Brief description of the drawings]

FIG. 1 is a perspective view of an indoor unit of an air conditioner according to an embodiment.

FIG. 2 is an exploded perspective view of an indoor unit of the air-conditioning apparatus of FIG.

FIG. 3 is a longitudinal sectional view of an indoor unit of the air-conditioning apparatus of FIG.

FIG. 4 is a plan view showing a device arrangement in an indoor unit of the air-conditioning apparatus of FIG.

FIG. 5 is a front view showing a device arrangement in an indoor unit of the air conditioner of FIG. 1;

FIG. 6 is a side view showing a device arrangement in an indoor unit of the air conditioner of FIG. 1;

[Explanation of symbols]

 (10) Casing (10a) Top plate (10b) Back plate (10c, 10d) Front plate (10e) Side plate (11) Main body (12) Projecting edge (13) Swelling (14) Inclined surface (20R) Right side Fan (20L) Left fan (fan) (25) Motor (30) Heat exchanger (41) Inlet (43) Front outlet (44) Side outlet (45) Air passage (51) Horizontal flap (60) Optional accessories (61) Switch box (air conditioning components) (62a) Refrigerant piping (air conditioning components) (62b) Drain piping (air conditioning components) (64) Divider (71) Ceiling (72) Side wall (80 ) Fixture

────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Junji Matsushima 1304 Kanaokacho, Sakai City, Osaka Prefecture Daikin Industries, Ltd. Sakai Works Kanaoka Plant (56) References Real Open 5-5-2586 (JP, U) Real Open Sho 63-172817 (JP, U) Shokai Sho 59-4924 (JP, U) Shohei Hei 4-57122 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 1 / 00 401

Claims (5)

(57) [Claims] 1. A casing (10), a suction port (41) for sucking room air from below, a front outlet (43) for blowing conditioned air forward of the casing (10), and both sides of the casing (10). A side air outlet (44) for blowing conditioned air into the casing (10), a fan (20R, 20L) for sucking and discharging room air, and a heat exchanger for generating conditioned air inside the casing (10). (3
(0) and the indoor unit of the air conditioner in which the heat exchanger (30) is arranged along the front air outlet (43).
It is arranged along the side heat exchange part (31) and the side outlet (44)
A side heat exchange section (32) is provided, and the fans (20R, 20L) are connected to the rear surface (10b) of the casing (10) and the heat
Between the front heat exchange part (31) and the side heat exchange part (32) of the heat exchanger (30).
It is located between the back (10b) of the casing (10), the fans (20R, 20L) and the side heat.
An air conditioning component (61) is arranged in the space (S1) between the air conditioner and the replacement unit (32).
An indoor unit of an air conditioning apparatus that is location. 2. The room air is supplied to the casing (10) from below.
Harmonic space in front of the suction port (41) and casing (10)
Front outlet (43) for blowing air and both sides of casing (10)
A side outlet (44) for blowing conditioned air toward the outside is formed, and indoor air is sucked and discharged into the casing (10).
Fan (20R, 20L) and a heat exchanger (3
(0) and the indoor unit of the air conditioner in which the heat exchanger (30) is arranged along the front air outlet (43).
It is arranged along the side heat exchange part (31) and the side outlet (44)
A side heat exchange section (32) is provided, and the fans (20R, 20L) are connected to the rear surface (10b) of the casing (10) and the heat
Between the front heat exchange part (31) and the side heat exchange part (32) of the heat exchanger (30).
A plurality of units are arranged in parallel, and a gap between each fan (20R, 20L) and the front heat exchange unit (31) is provided.
An indoor unit of an air conditioner in which the air conditioning component (61) is arranged in (S2) . 3. A casing (10), a suction port (41) for sucking room air from below, a front outlet (43) for blowing conditioned air forward of the casing (10), and both sides of the casing (10). A side air outlet (44) for blowing conditioned air into the casing (10), a fan (20R, 20L) for sucking and discharging room air, and a heat exchanger for generating conditioned air inside the casing (10). (3
(0) and an indoor unit of the air conditioner, wherein the heat exchanger (30) has a front heat exchange part (31) arranged along the front air outlet (43), and a side air outlet. (44), and a side heat exchange part (32) arranged along the (44), the fan (20R, 20L) is provided with a rear heat exchanger (10b) of the casing (10) and a heat exchanger in front of the heat exchanger (30). A plurality of units are arranged in parallel between the unit (31) and the side heat exchange unit (32), and are located between the rear surface (10b) of the casing (10) and each fan (20R, 20L).
The air conditioner indoor unit in which the air conditioning component (61) is disposed in the void (S3) . 4. The air-conditioning component is provided by a switch box (61).
The indoor unit of the air conditioner according to any one of claims 1 to 3 . 5. The air-conditioning component is a drain pump.
Item 4. An indoor unit of the air conditioner according to any one of Items 1 to 3 .