JP2007247975A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an air conditioner capable of uniformizing air speed distribution of air passing through a heat exchanger. <P>SOLUTION: A main body suction opening 2a is provided on a lower side of an air conditioner main body 1, and a blowout opening 3 is provided on the front thereof. A casing 4 is disposed so that a casing outside blowout end 10 incorporating a multi-blade fan 5 is at the lower side of the air conditioner main body 1, and a casing maximum suction area 13 is near the main body suction opening 2a. In response to the biased blowout air speed distribution of the casing 4, the heat exchanger 6 is incliningly disposed so that of the blowout opening 3, a side with faster air blowout speed is near to the heat exchanger 6, and a side of slower air blowout speed is far from the heat exchanger 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner installed at a high place such as a ceiling.

A conventional air conditioner installed on a high ceiling such as a ceiling has a multi-blade fan in the casing, and in order to make it more compact, a heat exchanger is placed on the casing outlet side closer to the multi-blade fan. The one far from the multi-blade fan is arranged in an inclined state upward (see, for example, Patent Document 1).
In some cases, the casing outlet is gradually enlarged so that the distance from the front surface of the inclined heat exchanger becomes substantially equal over the entire circumference (see, for example, Patent Document 2).

Japanese Utility Model Publication No. 63-118397 (FIG. 1) Japanese Patent Laid-Open No. 6-58564 (page 4, FIG. 1)

  However, since the conventional air conditioner described in Patent Document 1 uses a sirocco fan, the wind speed distribution of the casing outlet is largely biased so that the outer circumference of the casing becomes faster due to its characteristics. There are problems such as uneven distribution of wind speed passing through, deterioration of heat exchange performance, and increase of operation sound.

  Further, in another conventional air conditioner described in Patent Document 2, the casing blowout port is gradually enlarged to make the blowout air speed uniform, but the casing size becomes large and the unit cannot be downsized. There were also problems such as an increase in cost.

  This invention was made in order to solve the above problems, and a first object is to obtain an air conditioner capable of uniforming the wind speed distribution passing through the heat exchanger.

  The second object is to obtain an air conditioner that can expand the intake air volume without increasing the fan power.

  An air conditioner according to the present invention includes an air conditioner body, a casing disposed inside the air conditioner body, a multiblade fan housed in the casing and driven to rotate by an external driving force, and the air conditioner. A heat exchanger fixed inside the machine main body and provided facing the air outlet side of the casing, and formed with an air inlet on the multi-blade fan side of the air conditioner main body In the air conditioner, the heat exchanger is inclined and arranged so that the one with the higher blowing air speed is closer and the one with the lower blowing air speed is farther.

  According to the present invention, the heat exchanger is opposed to the air outlet of the casing, and further, of the air outlet side of the casing, the one with the higher blowing air speed is closer, and the one with the lower blowing air speed is farther away. Since the exchanger is disposed at an inclination, the wind speed distribution passing through the heat exchanger can be made uniform, and the effects of improved heat exchange performance, lower unit noise, compactness, and energy saving can be obtained.

Embodiment 1 FIG.
1 is a longitudinal sectional view of an air conditioner according to Embodiment 1 of the present invention, and FIG. 2 is a transverse sectional view according to Embodiment 1 of the present invention, which is an AA sectional view in FIG.
In the figure, a main body inlet 2 a is provided on the lower side of the air conditioner main body 1, a blower outlet 3 is provided on the front side, and a casing 4 is provided in the air conditioner main body 1. The casing 4 is disposed so that the casing outer outlet end 10 is on the lower side of the air conditioner main body 1 and the casing maximum suction area 13 is in the vicinity of the main body inlet 2a. A multiblade fan 5 is disposed in the casing 4 and is connected to a motor 14 for driving the fan. The heat exchanger 6 is provided facing the casing outlet 8 side, and inclines so that the higher blown air speed is closer and the slower blown air speed is farther in correspondence with the uneven blown air velocity distribution of the casing. I am letting. A drain pan 7 is disposed below the heat exchanger 6.

Next, the operation will be described.
In the air conditioner main body 1 configured as described above, the multiblade fan 5 is driven by the motor 14, so that air passes through the main body inlet 2 a and is sucked into the casing inlet 12. At this time, since the casing maximum suction area 13 is in the vicinity of the main body suction port 2a, the influence of pressure loss is minimized, and more suction can be performed with the same driving force. The sucked air is increased in pressure by the casing 4 and the multiblade fan 5 and then blown out from the casing outlet 8 to the heat exchanger 6. The blown air has a distribution with a high wind speed on the casing outer blowing end 10 side and a slow distribution on the casing inner blowing end 11 side. However, since the heat exchanger 6 becomes a resistance, air with a high wind speed is used. Do not pass straight through the heat exchanger 6, but tend to flow along the heat exchanger 6, mixed with the air on the casing inner blow-off end 10 side where the wind speed is low, and uniformized. Go through 6. The air is heated or cooled when passing through the heat exchanger 6 and then blown out from the main body outlet 3 into the room.

  As described above, since the wind speed distribution passing through the heat exchanger is made uniform, the heat exchange performance can be improved and the noise can be reduced, and the unit can be made compact and energy saving. .

Embodiment 2. FIG.
In the first embodiment described above, the casing outer outlet end 10 is disposed on the main body inlet 2a side below the main body 1. Next, the casing outer outlet end 10 is disposed on the opposite side of the main body inlet 2a. Embodiment 2 will be described.
FIG. 3 shows a longitudinal sectional view in such a case.
In the figure, a main body suction port 2 a is disposed below the air conditioner main body 1, or a main body suction port 2 b is disposed on the back side of the air conditioner main body 1. A blower outlet 3 is provided on the front side of the air conditioner main body 1, and the casing 4 is arranged in the air conditioner main body 1 such that the casing outer outlet end 10 is on the upper side of the air conditioner main body 1. . A multiblade fan 5 is disposed in the casing 4 and is connected to a motor 14 for driving the fan. The heat exchanger 6 is provided facing the casing outlet 8 side, and inclines so that the higher blown air speed is closer and the slower blown air speed is farther in correspondence with the uneven blown air velocity distribution of the casing. I am letting. A drain pan 7 is disposed below the heat exchanger 6.

Next, the operation will be described.
In the air conditioner main body 1 configured as described above, when the multiblade fan 5 is driven by the motor 14, the air passes through the main body inlet 2a or 2b and is sucked into the casing inlet 12 of FIG. . When the main body suction port 2b is disposed on the back of the air conditioner main body 1, the casing maximum suction area 10 is in the vicinity of the main body suction port 2b. I can inhale a lot. Since other operations and effects are the same as those of the first embodiment, the description thereof is omitted.
In addition, although the case where the main body inlet was provided in the back surface of the air conditioner main body 1 was shown in said example, you may arrange | position a main body inlet in the side surface of the air conditioner main body 1. FIG. In this case, the same effect is obtained.

It is a longitudinal cross-sectional view of the air conditioner in Embodiment 1 of this invention. It is a cross-sectional view of the air conditioner in Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the air conditioner in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioner main body, 2a Main body inlet, 2b Main body inlet, 3 Main body outlet, 4 Casing, 5 Multiblade fan, 6 Heat exchanger, 7 Drain pan, 8 Casing outlet, 9 Partition plate, 10 Outer casing outlet End, 11 Casing inner outlet, 12 Casing inlet, 13 Casing maximum suction area, 14 Motor.

Claims (6)

An air conditioner body,
A casing disposed inside the air conditioner body,
A multiblade fan housed in this casing and driven to rotate by an external driving force;
A heat exchanger fixed inside the air conditioner body and provided facing the air outlet side of the casing;
An air conditioner formed by forming an air suction port on one side of the airfoil main unit on the multi-blade fan side,
The air conditioner is characterized in that the heat exchanger is inclined and arranged so that the one with a higher blowing air speed is closer and the one with a lower blowing air speed is farther. Forming an air suction port on the lower surface of the airfoil body on the multi-blade fan side;
A casing outer blowing end provided to extend to the fast side of the air blown out from the casing; and a casing inner blowing end provided to extend to the slow side of the air blown out of the casing. The outer blow-out end is disposed close to the air suction port side of the air conditioner body, and the casing inner blow-off end is arranged far away from the air suction port side of the air conditioner body. Air conditioner. Forming an air suction port on the lower surface of the airfoil body on the multi-blade fan side;
A casing outer blowing end provided to extend to the fast side of the air blown out from the casing; and a casing inner blowing end provided to extend to the slow side of the air blown out of the casing. The inner blow-off end is disposed close to the air suction port side of the air conditioner body, and the casing outer blow-off end is arranged far away from the air suction port side of the air conditioner body. Air conditioner.   The air conditioner according to claim 1, wherein an air suction port is formed on a back surface of the air conditioner body on the multi-blade fan side.   The air conditioner according to claim 1, wherein an air suction port is formed on a side surface of the air conditioner main body on the multi-blade fan side. 6. The heat exchanger according to claim 1, wherein the heat exchanger is disposed so as to be inclined so that at least a part of the air blown out from the outer blowout end of the casing flows along a side surface of the heat exchanger. The air conditioner described in Crab.

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