JP2007263430A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of treating wastewater without problems, in the air conditioner where air conditioning unit portions are stacked in two stages to miniaturize a desired plane area. <P>SOLUTION: The air conditioner constituted by vertically disposing the air conditioning unit portions A, B as constitutional parts receiving an air blower and a heat exchanger, is provided with drain pans 23, 24 at lower portions of the upper and lower air conditioning unit portions A, B, and the drain pan 23 of the upper air conditioning unit portion B is used as a partitioning plate between the upper and lower air conditioning unit portions A, B. Thus the scattering and leakage of wastewater generated at the upper air conditioning unit portion can be prevented, the constitution can be simplified by sharing the function, the strength of the partitioning plate can be improved, and the partitioning plate can be activated as a strength member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more particularly, to an air conditioner in which air conditioning unit parts, which are components that house a blower and a heat exchanger, are stacked in two upper and lower stages.

  As an air conditioner, an air-cooled separate type air conditioner has become common. Further, in the indoor unit of the air-cooled separate type air conditioner, downsizing has been studied in order to emphasize the harmony with the room. In particular, in the case of a floor-mounted air conditioner, attempts have been made to reduce the installation area, that is, the planar area. As such an air conditioner, the air conditioner described in Patent Document 1 can be exemplified.

In this air conditioner, a horizontal partition plate is disposed at a substantially central portion in the height direction of the main body casing, and air conditioning unit portions having substantially the same configuration are disposed above and below the horizontal partition plate. This air conditioner uses a configuration in which air conditioning units are stacked in two stages to reduce the plane area of the air conditioner (which corresponds to the required floor area in the case of a floor-mounted air conditioner). is there.
Japanese Patent Laying-Open No. 2006-29702 (page 9-10, FIG. 7 (a))

  In the air conditioner described in Patent Document 1, the partition plate disposed between the upper and lower air conditioning unit portions prevents the interference of the blown air from the indoor fans housed in the upper and lower air conditioning unit portions. Therefore, in the case of this air conditioner, it is possible to prevent the generation of sound and the decrease in the efficiency of the indoor fan due to the interference of the blown air flow of the indoor fans arranged above and below. However, in this air conditioner, the processing when drain water is generated in each air conditioning unit is not studied.

  The present invention has been made paying attention to such a problem existing in the prior art, and in an air conditioner in which air conditioning units are combined in two stages in order to reduce the required plane area, An object of the present invention is to provide an air conditioner that can treat water without hindrance.

  In order to solve the above-described problems, an air conditioner according to the present invention is an air conditioner in which an air conditioning unit part, which is a constituent part containing a blower and a heat exchanger, is arranged up and down, and each of the upper and lower air conditioning unit parts. A drain pan is provided in the lower part, and the drain pan of the upper air conditioning unit is also used as a partition plate between the upper and lower air conditioning units.

  Since the air conditioner according to the present invention is configured in this way, the drain water generated in the upper air conditioning unit is received by the drain pan of the upper air conditioning unit. The falling distance can be shortened even when the splashes. If the drain pan is installed only in the lower part of the main casing of the air conditioner, the fall distance of the drain water scattered in the upper air conditioning unit will be longer, so it will jump out of the machine under the influence of the blown airflow. Alternatively, there is a possibility that drain water adhering to the inner wall of the outer casing may ooze out, but in the case of the present invention, such a fear can be alleviated. Moreover, since the drain pan and the partition plate are realized by the same member by using the drain pan also as the partition plate, the configuration is simplified. Further, in order for the partition plate to have the function of a drain pan, a rising wall is formed around the partition plate, so that the strength of the partition plate is improved by the rising wall. For this reason, the drain pan of an upper air-conditioning unit part can be utilized as a main intensity | strength member in the main body casing of an air conditioner.

  In the above configuration, the drain water stored in the drain pan of the upper air conditioning unit is transferred to the drain pan of the lower air conditioning unit between the drain pan of the upper air conditioning unit and the drain pan of the lower air conditioning unit. A drain pipe may be provided. If comprised in this way, since drain water can be unified and drained from the drain pan of a lower air-conditioning unit part, while simplifying the structure of an air conditioner, on-site piping construction can be simplified. .

  According to the air conditioner according to the present invention, it is possible to mitigate the possibility of drain water scattering or leakage generated in the air conditioning unit disposed above. Further, by using the drain pan also as the partition plate, the drain pan and the partition plate are realized by the same member, thereby simplifying the configuration and improving the strength of the partition plate. Therefore, the drain pan of the upper air conditioning unit can be used as a strength member of the main casing.

Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to FIGS.
The air conditioner according to the present embodiment is a floor-mounted indoor unit of a separate type air conditioner, and the exterior casing 1 covers the main body casing 2 and the front surface thereof as shown in FIG. The front panel 3 is attached to the front panel 3. The upper and lower air conditioning unit parts A and B are shown in FIG. 3 in a plane cross-sectional view of the air conditioning unit parts A and B, and FIG. 1 is a front open perspective view, that is, the front panel 3 and the indoor fan. As shown in a perspective view in a state in which the bell mouth is removed, they are formed substantially the same.

  In the air conditioner according to the present embodiment, as shown in FIG. 1, the main body casing 2 is formed in a vertically long box shape, and a heat insulating material wall 21 is formed by attaching a heat insulating material to the inner wall when viewed in a plan view. Has been. The corner portions 22 from the left and right side surfaces of the heat insulating material wall 21 to the back surface are respectively formed on arcuate inner surfaces. Moreover, the main body casing 2 is divided into upper and lower parts at a substantially central part in the height direction, and an upper part is an upper air conditioning unit part A and a lower part is a lower air conditioning unit part B. And the drain pan 23 is arrange | positioned in the lower part of the upper air-conditioning unit part A, and this drain pan 23 is used as a partition plate between the upper and lower air-conditioning unit parts A and B. In addition, a bottom frame 24 serving as a base member when the air conditioner is installed is disposed at the lowermost part of the main casing 2. A drain pan 25 of the lower air conditioning unit B is formed inside the bottom frame 24.

  As shown in FIGS. 1 and 3, each of the air conditioning units A and B is provided with a centrifugal fan 40 as an indoor fan, more specifically, a turbo fan at the center. The centrifugal fan 40 has a rotating shaft 42 of the impeller 41 in the front-rear direction, a bell mouth 43 that forms a suction port is attached to the front side (see FIG. 3), and the hub 44 of the impeller 41 is the back of the main casing 2. It is attached in the form along. The fan motor 45 for driving the centrifugal fan 40 is a thin motor such as a print motor, and is attached to the main body casing 2 on the back side of the hub 44.

  The centrifugal fan 40 reduces the space above and below the impeller 41 so that the air sucked into the impeller 41 is in the radial direction of the impeller 41 and in the left-right direction of the impeller 41 when viewed from the front. It is comprised so that it may discharge. And the indoor blower outlet 31 is formed in the both ends of the front panel 3, and the ventilation path 26 from the centrifugal fan 40 to the indoor blower outlet 31 is formed in the main body casing 2. As shown in FIG. As described above, each corner portion 22 in the ventilation path 26 is formed to have an arc-shaped inner surface, and the ventilation resistance in the ventilation path 26 is reduced.

  Indoor heat exchangers 27 are respectively disposed in the left and right ventilation paths 26. As the indoor heat exchanger 27, a corrugated fin heat exchanger in which corrugated fins are interposed between flat tubes, a cross fin coil heat exchanger using flat fins, or the like can be used.

  The front panel 3 includes an upper front panel 3a that covers the front of the upper air conditioning unit A and a lower front panel 3b that covers the front of the lower air conditioning unit B. And then. The upper front panel 3a and the lower front panel 3b have an indoor suction port 32 at a position corresponding to the bell mouth 43 of the centrifugal fan 40, that is, at substantially the center of the upper front panel 3a and the lower front panel 3b. A vertically long indoor outlet 31 is provided at both ends of the opening 32. And the stationary blade | wing of a horizontal direction is attached to the indoor suction inlet 32, and the wind direction blade | wing which can change direction to an up-down direction is attached to the indoor blower outlet 31. As shown in FIG. In addition, you may attach the wind direction blade | wing for changing a wind direction in the left-right direction inside the indoor blower outlet 31. FIG.

  The drain water generated in the upper air conditioning unit A is received by the drain pan 23 of the air conditioning unit A, and the drain water generated in the lower air conditioning unit B is received by the lower drain pan 25 formed in the bottom frame 24. It is done. Further, a drain pipe 28 for transferring the stored drain water to the lower drain pan 25 is provided on the side of the drain pan 23. Further, a drain water discharge port 29 for draining drain water stored in the drain pan 25 is provided on the side of the lower drain pan 25.

  Each air-conditioning unit A, B configured as described above is connected in parallel to a single outdoor unit (not shown), and can be started and stopped individually and can control the air volume and the like. In addition, a remote controller (not shown) for operating the air conditioning unit parts A and B is a pair formed for each of the air conditioning unit parts A and B or a common one. It is comprised in either.

Next, the flow of the blown air flow and the drain water treatment of the air conditioner according to the present embodiment will be described.
When each air conditioning unit A, B is cooled or dehumidified by the operation of the remote controller, each centrifugal fan 40 is operated, and the room air is sucked from each room air inlet 32. The sucked room air flows into the ventilation path 26, is cooled or dehumidified by the indoor heat exchanger 27, and then blows out from the indoor outlets 31 provided on the left and right sides of the air conditioning units A and B. Since this ventilation path is partitioned by the drain pan 23 of the air-conditioning unit A, the air flow from each centrifugal fan 40 is operated without interfering with each other. Moreover, since the corner part 22 in the ventilation path 26 is formed in the circular-arc-shaped curved surface, the ventilation resistance of the ventilation path 26 is reduced.

  In each air conditioning unit A, B, the indoor air is cooled and dehumidified by the indoor heat exchanger 27, whereby the moisture in the air is condensed by the indoor heat exchanger 27 and drain water is generated. The drain water generated in the upper air conditioning unit A is received by the upper drain pan 23, and the drain water generated in the lower air conditioning unit B is received by the lower drain pan 25. The drain water stored in the upper drain pan 23 is transferred to the lower drain pan 25 via the drain pipe 28. Further, drain water generated in the upper and lower air conditioning units A and B is discharged to the outside from a drain water discharge port 29 attached to the drain pan 25.

Since the air conditioner according to the present embodiment is configured as described above, the following operational effects can be achieved.
(1) Since the blown air flow blown out from each centrifugal fan 40 is blown out from the indoor air outlet 31 without interfering with each other, there is no generation of sound and reduction in efficiency due to mutual interference of the blown air flow.

  (2) Since the drain water generated in the upper air conditioning unit A is received by the upper drain pan 23, the fall distance can be shortened even if the drain water is scattered from the heat exchanger. If the drain water of the upper air conditioning unit A and the drain air of the lower air conditioning unit B are received at the lowermost part, the falling distance of the drain water scattered by the upper air conditioning unit A becomes longer. . For this reason, there is a risk of drain water leaking to the outside by jumping out of the machine under the influence of the blown airflow or adhering to the inner wall of the outer casing. In the case of the present invention, such a risk is alleviated. can do.

(3) Since the drain pan 23 is also used as a partition plate, the configuration is simplified because the drain pan and the partition plate are realized by the same member.
(4) Since the partition plate has the function of a drain pan, a rising wall is formed around the partition plate, so that the strength of the partition plate is improved by the rising wall. For this reason, the drain pan 23 of the upper air conditioning unit A can be used as a main strength member in the main body casing 2 of the air conditioner.

  (5) In the present embodiment, as described above, the air is stored in the drain pan 23 of the upper air conditioning unit A between the drain pan 23 of the upper air conditioning unit A and the drain pan 25 of the lower air conditioning unit B. A drain pipe 28 is provided for transferring the drained water to the drain pan 25 of the air conditioning unit B below. Therefore, since drain water can be discharged from the drain pan 25 of the air conditioning unit B below, the construction of the air conditioner can be simplified and the local piping work can be simplified.

  (6) According to the above embodiment, the number of indoor units is one, but the wind speed of the blown air is selected for each zone, the wind direction of the blown air is changed for each indoor blowout port 31, or the blown air Since the temperature of the indoor unit can be changed, it can be used in the same manner as when a plurality of indoor units are installed.

  (7) Since the centrifugal fan 40 and the indoor heat exchanger 27 are arranged in the horizontal direction in each of the air conditioning units A and B, the axial dimensions and chambers of the impeller 41 in the centrifugal fan 40 The depth dimension of the air conditioner can be determined by the longitudinal dimension of the inner heat exchanger. Therefore, the air conditioner can be reduced in thickness by suppressing the required dimensions in the axial direction of the impeller 41 in the centrifugal fan 40 and the dimensions in the front-rear direction of the indoor heat exchanger.

(Modification)
(1) Although the air conditioner according to the present embodiment is formed as a floor-standing type, a wall-mounted air conditioner can be formed as a form that excludes the bottom frame 24 by applying the idea of the present invention. .

  (2) The drain water discharge port 29 of the lower drain pan 25 is extended outward from the side of the bottom frame 24. In the bottom frame 24, drain piping can be led out to the back side or the left and right side surfaces. As described above, a space for routing the piping may be provided inside the bottom frame 24. In this way, the drain pipe connected to the outside of the machine can be made inconspicuous indoors in any installation state.

(3) Although the turbo fan is used as the centrifugal fan 40 in the above embodiment, other centrifugal fans such as a sirocco fan and a radial fan may be used instead.
(4) Although the number of outdoor units is one in the above embodiment, a dedicated outdoor unit may be connected to the air conditioning unit.

(5) In the above embodiment, the indoor suction port 32 with a fixed blade in the horizontal direction is exemplified, but this is merely an example, and the indoor suction port 32 is opened so as not to be noticeable. It is possible to use an appropriate structure such as a structure having a different structure, a structure configured to open and close by an appropriate method, and a structure having a different-shaped grill structure.

  The present invention can be applied to commercial air conditioners for home air conditioners, office buildings, hotels, restaurants, and the like.

It is a perspective view of the front open state of the air conditioner concerning an embodiment of the invention. It is an external appearance perspective view for the air conditioner. It is a plane sectional view of the air-conditioning unit part for the air conditioner.

Explanation of symbols

  A, B ... Air conditioning unit, 23, 25 ... Drain pan, 28 ... Drain piping.

Claims (2)

  An air conditioner in which an air conditioning unit part, which is a component part that houses a blower and a heat exchanger, is arranged above and below, and a drain pan is provided below each of the upper and lower air conditioning unit parts, and the drain pan of the upper air conditioning unit part is An air conditioner that is also used as a partition plate between air conditioning unit sections.   Between the drain pan of the upper air conditioning unit and the drain pan of the lower air conditioning unit, a drain pipe for transferring drain water stored in the drain pan of the upper air conditioning unit to the drain pan of the lower air conditioning unit is provided. The air conditioner according to claim 1.

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