JPS63286629A - Indoor unit for air-conditioning machine - Google Patents

Abstract

PURPOSE:To permit the regulation of the blow-off direction, range, amount of air and the like of conditioned air arbitrarily, by a method wherein a plurality of fans are arranged in the relative positions of vertical direction while the fan casings of respective fans are attached so that the directions of the delivery ports of respective fans are changeable and pivotable independently. CONSTITUTION:The title indoor unit is provided with the suction port 3 of indoor air, the blow-off ports 4a, 4b, 4c of conditioned air and the like while a heat exchanger 5 is provided behind the suction port 3. The fan 8a of a centrifugal fan, driven by a motor 9a and rotated in a fan casing 15a, is provided at the upper part of the back side of the heat exchanger 5 while the fan 8b is provided at the lower part of the back side of the heat exchanger 5 in the same manner. The inside of a main body casing 2 is partitioned by bulkheads 13a, 13b: the casing 15a of the upper centrifugal fan is pivotally attached to the bulkhead 13a and the casing 15b of the lower centrifugal fan is pivotably attached to the bulkhead 13b. An air passage 19 for guiding air into a blow-off port 4e at the lower part of the front surface of the main body case 2 and a damper 20 are provided at the lower part of the main body casing 2.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to improvement of an indoor unit of an air conditioner,
In detail, it relates to the configuration of indoor units 1 to 1 which can change and set the air outlet.6 [Prior art] In recent years, the demand structure for air conditioners has changed to that of heaters.
Safety, economy, and the characteristics of electric pumps
J[Il! The heat pump type, which is used for both heating and cooling, is now the mainstream due to its high quality and high performance. This air conditioning 1
In order to achieve comfortable air conditioning in the type for general use,
In order to maintain a uniform indoor air temperature, it is desirable that cold air be blown upward during cooling, and warm air be blown toward the feet during heating. For this reason, a floor-standing type is the most desirable form of indoor air conditioner unit, and in consideration of Japan's housing situation, a vertical type with a small projected area is also desirable! It is y.

In addition, in order to pursue comfort during air conditioning, it is desirable to blow cold or hot air softly over a wide range, and it is also desirable to reach the target air conditioning condition in a short time from the start of operation, so-called good start-up characteristics. required.

FIG. 12 is a side sectional view showing an indoor unit of an air conditioner disclosed in, for example, Japanese Patent Application Laid-Open No. 55-1028/10. In the figure, 2 is the main body case of the indoor unit 2, and an indoor air intake port 3 is formed in the center of the front surface (left side of the figure) of the main body case 2. Air outlets [14a and 4b] are provided at both the left and right sides (not shown) for blowing out the unified air. A heat exchanger 5 is provided behind the suction port 3. A centrifugal blower is provided behind the heat exchanger 5 and includes a spiral fan casing 15 in which a fan suction port 6 and a fan discharge port 17 are formed, and a fan 8 rotationally driven by a motor 9. It is being The fan casing 15 is supported by the main body case 2 so as to be rotatable about the rotation axis of the fan.

Next, the operation of the conventional air conditioner indoor unit shown in FIG. It passes through the container 5, is sucked into the suction port 6 of the fan, is discharged from the discharge lower, and is discharged into the room from the discharge port 4 of the main body case 2. then,
By rotating the fan casing 15, the direction in which air is blown out can be arbitrarily set in the circumferential direction. That is, by oriented the discharge lower of the fan casing 15 upward, the blowout of the fourth part [4a]
It is also possible to blow the air from the lower air outlet 4e by directing it downward, or from the left or right air outlet that does not indicate IA.

[Problems to be solved by the invention] Conventional air GL! Since the indoor unit of the J-phase machine is configured as described above, it is possible to change the blowing direction of air according to cooling or heating, but the blowing range is narrow and cannot be adjusted. There is a problem in that the most important comfort for air conditioners is impaired, such as a long time required to reach the target temperature (so-called poor start-up characteristics).

This invention was made in order to solve the above problems, and it is possible to spread the air in the blowing direction, adjust the range, and provide a wind speed suitable for air conditioning conditions such as cooling and heating. It is an object of the present invention to obtain an indoor unit of an air conditioner having a slim shape with improved comfort and a small width dimension.

[Means for Solving the Problems 1] In the indoor unit of the air conditioner according to the present invention, a plurality of blowers are arranged in relation to each other in the vertical direction, and the fan casing of each blower has a fan casing independently connected to the fan. It is rotatably installed so that the direction of the discharge port can be changed and set.

[Function] The indoor unit of the air conditioner according to the present invention has a plurality of air outlets provided in the main body case.

There are also multiple blowers, and the fan casing of each blower can be set to rotate independently.
Each blower can be set in any direction by rotating the fan casing to blow out conditioned air in any direction. As a result, depending on the air conditioning conditions,
The conditioned air can be blown out in the fan's direction and in the optimal range, making it possible to achieve 1-91 degrees! It is possible to create a comfortable air-conditioned environment with good f-performance.In addition, since multiple blowers are arranged in vertically related positions, the width dimension is small and the shape is slim, so the installation space is small. This will be indoor unit 1-.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1st
11 shows one embodiment of the present invention, FIG. 1 is a side sectional view of the indoor unit according to the first embodiment, FIG. 2 is a partial side sectional view of the indoor unit in a different state from FIG. 1, and FIG. 3 to 6 are explanatory diagrams of air blowing, 7rA is a side sectional view of the indoor unit according to the second embodiment, FIG. 8 is a side sectional view of the indoor unit according to the third embodiment, and FIGS. 9 and 10. The figure is an explanatory diagram of the air blowing of the indoor unit according to the fourth embodiment, and FIG. 11 is a perspective view of the indoor uni-soto according to the first embodiment.

In Fig. 1, reference numeral 2 is the main body case of the indoor unit, and as shown in Fig. 11, an indoor air intake port 3 is provided on the front, and an upper front outlet for blowing out the J4-summed air. B4a, upper rear air outlet tlb, F section air outlet 1e, right front air outlet [], right f1. ljl
A t& section air outlet and a similar air outlet on the left side (not shown) are provided. A heat exchanger 5 is provided behind the suction port 3. A motor 9 is installed at the rear upper part of the heat exchanger 5.
A centrifugal blower fan 8a that is rotationally driven by a motor 9b and rotates within the fan casing 15a is provided at the rear lower part. The interior of the main body casing 2 of the indoor unit is partition walls] 3a, 13b
The casing 15a of the upper centrifugal blower
is rotatably housed in the partition wall 13a, and the casing 15b of the lower centrifugal blower is rotatably attached to the partition wall 13b. In addition, an air passage 19 and a damper (-20) are provided at the bottom to guide air to the outlet 4e at the lower front of the main body case 2.As shown in FIG. Let's blow out the wind from
・Can be made to blow out from the IC +771)'?
It is U.

Note that 6a and 6b are fan casings 15;:l.

The suction of 15b is [-1, 71.71) indicates the outflow [1]. Further, the guide portions 17a, 17b of the fan casings 15a, 15b are the partition walls 13a.

i6' on the guide portions 16a and 16b provided on the guide portion 13b.

By fitting them together, they are rotatably supported, and can be rotated by a drive motor and a transmission mechanism (not shown), so that the directions of the lower projection a, 71] can be changed and set independently. It has become.

Next, the operation of this embodiment will be explained. motor 9a
, 9b of the centrifugal blower fan 8a.

When the fan 8b is rotated, the indoor air sucked in from the suction port 3 of the main body case 2 is heated or cooled through the heat exchanger 5, and the upper air is sucked in from the suction port 6a of the fan 8a and discharged. The air in the lower part is sucked in from the suction port 6b of the fan 8b, and is discharged from the discharge lower part b. At this time, if the discharge lowers a and 7b are directed upward as shown in FIG. When the fan casings 15a, 15b are rotated and the blower lowers a, 7b are directed laterally, air is emitted from the four blower ports 4c, 4d (FIG. 11). Alternatively, if the blowing lower b of the fan 8b is directed downward and the damper 20 is pushed down to open the air passage 19, as shown in FIG.
Air is blown out from the lower air outlet 4e.

3UA and FIG. 5 show an example of the blowing direction during cooling operation, and the blowing lower a of the upper fan casing 15a
In this example, the air is directed upward and blown out from an upward outlet, and the blowing lower b of the casing 15b of the lower fan is blown diagonally upward from an outlet on the right or left side.

71 and 6 show an example of the blowing direction during heating operation, the blowing lower a of the upper fan casing 15a blows out from the side blowing port toward the right or left 111J, and the lower fan casing 15b In this example, air is emitted from the lower air outlet 4e toward the lower part of the air blowing lower b.

In addition, the fan casings 15a, 15b are rotated to change the direction of the air outlet [ll7a, 7b].
A drive mechanism (not shown), as shown by reference numeral 30 in FIG. 2, is provided to, for example, swing the upper fan casing 15a and fix the lower fan casing 15b. or
It is also possible to fix the upper part and swing the lower part, or to periodically change the air blowing direction and widen the blowing range by swinging both. If the moon is mounted on a wall and the lower part is open, the air outlet = 1 f on the bottom plate of main case 2
It is also possible to open the outlet and use the damper 20 to switch between the outlet 4e and 4f.

Furthermore, the air volume of the upper and lower fans 8a and 8b is changed to set the wind speed JIt suitable for the air condition of cooling or heating.For example, during cooling, the air volume of the L section fan is increased and the air volume of the lower fan is decreased. In addition, when the room is in the 11th room, the upper fan's airflow is reduced and the lower fan's airflow is increased. Alternatively, the wind h) of the upper and lower fans is alternately changed in size. It is also important to perform such control.

In short, 31j, I phase! The direction and range of the air being blown out.

It is possible to create the most comfortable indoor air environment by adjusting the wind speed etc. according to the installation status of the indoor unit and various conditions in the target room.

FIG. 7 shows a second embodiment, in which the upper fan 8a is 13! !
Attach the lower fan 8b to the bulkhead 13b of n, υ1, and connect the lower fan 8b to the +iif I! ! It is attached to the bulkhead 13a of the partition wall 13a. The configuration of the pond is similar to that of the first embodiment. In the first embodiment, it is possible to increase the amount of air flowing upward, but in the second embodiment shown in FIG. 7, it is possible to increase the amount of air flowing downward. Therefore, this would be appropriate as an indoor unit that can be hung on the wall and focuses on heating.

FIG. 8 shows a third embodiment, in which the partition wall and the air passage are modified so that the fan 8b on the back side is mounted closer to the front side. In the third embodiment, the depth dimension of the indoor unit 2 is reduced to +i (ability).

91m and 10 show the eleventh embodiment, in which the fan l
i, is provided in the direction (+7 position).Other configurations are the same as in each of the previous embodiments.In this embodiment, the number of fans is increased, so the above-mentioned wind direction, air volume, range, etc. The degree of freedom in adjustment is further increased.

In addition, as shown in Figures 9 [4 and 10], each fan case can be swung so as to blow out the conditioned air in a direction other than the direction in which another fan is provided by increasing the number of fans. By doing so, a plurality of fans can be arranged vertically in a straight line without the need for an air passage behind the upper fan casing 15a like the 8th UA, so the width of the indoor unit can be made smaller and slimmer. Become.

[Effects of the Invention] As described above, according to the present invention, there are a plurality of centrifugal blowers (fans) in the indoor units 1 to 1 of the air conditioner, and the fan casing of each fan can be rotated independently, and the blowing direction can be changed. Since the airflow can be changed freely, the blowing direction, blowing range, air volume, etc. of the conditioned air blown from the indoor uni-soto can be adjusted as desired. This has the effect of making the room more comfortable, such as making the room temperature more uniform and shortening the time it takes to reach the target air conditioning state. Furthermore, since a plurality of fans are arranged vertically, the width of the indoor unit is reduced, which has the effect of saving space and easing restrictions on the installation location.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of an indoor unit according to a first embodiment of the present invention, Fig. 2 is a partial side sectional view of the fan shown in Fig. 1 with the direction changed, and Fig. 3 is a front view during cooling. Figure 4 is a front explanatory view during heating, Figure 5 is an internal explanatory view during cooling, Figure 6 is an internal explanatory view during heating, and Fig. 7 [21 is a side cross section of the indoor unit according to the second embodiment]. 8 are side sectional views of the indoor unit according to the third embodiment, FIG. 9 and FIG.
FIG. 0 is a usage explanatory diagram of the indoor unit according to the fourth embodiment, FIG. 11 is an external rrA perspective view of the indoor unit according to the first embodiment, and 12UA is a side sectional view of the indoor units 1 to 1 according to the conventional example. . In the figure, 2 is the main body case to the indoor unit/1, 3
is the suction port, 11 is the blowout [ ], 5 is the heat exchanger, 7 is the fan outlet, 8 is the centrifugal blower (fan), ] 5 is the fan casing 6 In addition, in the figures, the same symbols are the same or equivalent. Show parts.

Claims (1)

[Claims] In an indoor unit of an air conditioner, the air that has been taken in and conditioned through a heat exchanger is selectively blown out from a plurality of air outlets by a blower, wherein the blowers are arranged in vertically related positions. An air conditioner characterized in that the fan casing of each of the blowers is rotatably mounted so that the direction of the fan outlet can be changed and set independently. indoor unit.