KR20060105764A - Ceiling suspension type air conditioner - Google Patents

Abstract

The outside air is easily introduced during operation of an air conditioner while dew formation or the like accompanying the introduction of the outside air is prevented, thereby making long-term operation possible. A ceiling suspension type air conditioner (1) installed by being suspended from the indoor ceiling comprises a heat exchanger (15) and a blower (13) which are arranged in the order mentioned as seen from the front having a blow port (41). A suction grille (37) is provided in the bottom surface of a chamber (13X) having the blower (13) stored therein. The air conditioner (1) is provided with an air conditioner main body (1a) storing electric and electronic parts (motor (25), electric and electronic parts box (11)) and having a rear panel (60). In the rear panel (60) is disposed an outside air introducing port (62) in a place where the introduced outside air does not impinge directly on the electric and electronic parts.

Description

Ceiling type air conditioner {CEILING SUSPENSION TYPE AIR CONDITIONER}

The present invention relates to a ceiling type air conditioner which is suspended from an indoor ceiling.

In the air conditioner, a suction grill for blowing in the air in the room to be harmonized and a blowout port for taking out the air after conditioning are provided.

For example, in a ceiling type air conditioner (for example, see Patent Document 1) that is suspended from a ceiling in a room using a suspension bolt, the air conditioner body bottom surface (a surface facing the bottom surface of a building). ), A suction grille is provided, and a blowout port is provided on the air conditioner main body front side.

[Patent Document 1] Japanese Patent Application Laid-Open No. 9-275251

By the way, the conventional air conditioner did not have the function of ventilation only by circulating indoor air.

On the other hand, Sikh House syndrome has become a major social problem in recent years. For example, according to the Japanese Building Standards Act, it is always possible to drive 24 hours a day in the living room of a house, and to install a ventilation facility of 0.5 times / h or more (the ability to change the miracle (volume) of the house in 2 hours) There is an obligation.

However, the provision of ventilation equipment in addition to the air conditioner indoors increases the installation cost. Furthermore, the installation area of the whole air conditioner system is also needed. In addition, the beauty of the room is also damaged by the duct connecting the air conditioner and the ventilation equipment.

Accordingly, an object of the present invention is to provide an air conditioner that can easily introduce outside air during operation of the air conditioner, prevent condensation in the air conditioner accompanying introduction of the outside air, and operate for a long time. There is.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the external appearance structure of the ceiling type air conditioner of embodiment.

Fig. 2 is a sectional view showing the internal structure of the air conditioner body.

3 is a plan view showing the internal structure of the air conditioner body.

4 is a partially exploded perspective view from the rear face side of the air conditioner body.

Fig. 5 is a partially enlarged perspective view from the rear face side of the air conditioner body.

<Explanation of symbols for the main parts of the drawings>

1: ceiling type air conditioner

1a: air conditioner body

11: electric equipment box (electronic parts)

14: Floor Panel

25: Motor (Electrical Parts)

37: suction grill

39: filter

41: outlet

45: side cover

60 rear panel

61: hole for pipe connection

61A: Cover

62: outside air inlet

In order to solve the above problems, a heat exchanger and a blower are arranged in order from a front face on which a blower is installed, and a ceiling type air conditioner installed with a suction grill on a bottom surface of a chamber in which the blower is housed is suspended from an indoor ceiling. And an air conditioner main body having a rear panel, wherein the rear panel is provided with an outside air inlet at a position where the outside air does not directly strike the electric component.

According to the above configuration, by connecting the air supply duct to the outside air inlet, the outside air can be easily introduced at the time of operation of the air conditioner, and at the position where the introduced outside air does not directly hit the electric component. Since the outdoor air inlet is provided, condensation and the like in the air conditioner accompanying the introduction of the outdoor air can be prevented.

In this case, the outside air inlet may be composed of a knockout panel that can be removed.

The electric component may include at least one of a blower motor, an electric box, and an electrical connector constituting the blower.

The outside air inlet may be provided at a position where outside air is directly guided to the fan constituting the blower.

The outside air inlet may have an opening area in which the mixing ratio between the indoor air circulated through the suction grill and the introduced outside air is a predetermined ratio according to the blowing ability of the fan constituting the blower.

The predetermined ratio may be determined according to the ventilation capacity per unit time required.

According to the present invention, outside air can be easily introduced during operation of the air conditioner, condensation in the air conditioner accompanying introduction of the outside air, etc. can be prevented, and the air conditioner can be operated for a long time. Become.

EMBODIMENT OF THE INVENTION Next, embodiment of this invention is described with reference to drawings.

1 is a perspective view showing an external configuration of a ceiling air conditioner according to the present embodiment. Fig. 2 is a sectional view showing the internal structure of the air conditioner main body. 3 is a plan view showing the internal structure of the air conditioner main body.

As shown in Fig. 1, the ceiling type air conditioner 1 includes an air conditioner main body 1a and a casing 12A. This casing 12A has a resin side cover 45 located on both sides of the air conditioner main body 1a and a bottom panel 14 disposed on the lower (bottom) side of the air conditioner main body 1a. And a suction grill 37.

In addition, the casing 12A is provided with a receiving window 50 having a receiving unit, not shown, which receives an instruction signal from a remote controller, not shown, for controlling the air conditioner main body 1a. It is.

As shown in FIG. 2, the air conditioner main body 1a is mounted and fixed to the lower surface of the indoor ceiling plate 5 across the suspension bolt 3 suspended from the ceiling. The air conditioner main body 1a is provided with a blowout port 41 on the front face side. As for the air conditioner main body 1a, the heat exchanger 15 and the blower 13 are arrange | positioned sequentially from the front surface side. Moreover, the louver 51 for adjusting the wind direction is arrange | positioned in the blower outlet 41. As shown in FIG. In addition, in the air conditioner main body 1a, various apparatuses, such as the electrical equipment box 11 and the refrigerant pipe 29, are accommodated.

The blower 13 of this embodiment is equipped with two blower units (fans) 21 and 22 in blower chamber 13X, as shown in FIG. These blower units 21 and 22 are fixed and arranged on a rotating shaft 27 driven by one motor 25.

The heat exchanger 15 is a fin-tube type heat exchanger as shown in FIG. This heat exchanger 15 is installed obliquely in the air conditioner main body 1a. A refrigerant pipe 29 is connected to the heat exchanger 15. The refrigerant pipe 29 extends out of the air conditioner main body 1a and is connected to a compressor, a decompression device, an outdoor heat exchanger, and the like of an outdoor unit (not shown).

Below the heat exchanger 15, as shown in FIG. 2, the drain pan 31 made of foamed styrol is provided. The sheet metal panel 33 is provided in the lower surface of this drain pan 31. The drain pump unit 35 is connected to the drain reservoir 31a of the drain pan 31 via the flexible tube 32 as shown in FIG. The drain pump accommodated in the drain pump unit 35 sucks up the drain collected in the drain reservoir 31a and discharges it out of the air conditioner body 1a.

Below the blower 13, as shown in Fig. 2, a suction grill 37 made of resin is provided. The suction grill 37 is provided with an air cleaning filter 39. Then, when the blower 13 is driven, indoor air is sucked into the air conditioner main body 1a through the suction grille 37 and the filter 39. After the air sucked into the air conditioner main body 1a is heat-exchanged with the heat exchanger 15, the wind direction is adjusted by the louver 51, and is blown out through the blower opening 41 to the room.

The intermediate partition plate 43 is a partition plate which crosswise partitions substantially the center of the air conditioner main body 1a. The blower 13 is arrange | positioned at the chamber partitioned by this intermediate | middle partition plate 43. As shown in FIG.

4 is a partially exploded perspective view from the rear surface side of the air conditioner main body. 5 is a partially enlarged perspective view from the rear surface side of the air conditioner main body.

The rear panel 60 is provided on the rear surface side of the air conditioner main body 1a. Prior to installation, the rear panel 60 is provided with an air inlet 62 formed of a pipe connection hole 61 into which a resin lid 61A is fitted, and a knock-out panel in which a portion thereof is perforated. In addition, various holes such as wiring holes are provided.

A duct attachment screw hole 63 is provided around the outside air inlet port 62. The duct piping 64 is connected to this duct installation screw hole 63 as needed.

The chamber partitioned by the rear panel 60 and the intermediate partition plate 43 constitutes the blower chamber 13X described above. The electric equipment box 11 and the blower 13 mentioned above are arrange | positioned in the blower chamber 13X.

In this case, the outside air inlet 62 is the outside air introduced into the electric component including at least one of the motor 25 constituting the electric box 11 and the blower 13 and the electrical connector used therein. Is installed at the position where it is not directly broken and the position where the installation of the pipe is not obstructed.

Here, the outdoor air inlet 62 is directly introduced into the electric component including at least one of the electric box 11, the motor 25 constituting the blower 13, and the electrical connector used therein. The reason for this is to prevent the parts from deteriorating due to condensation or the like due to external air coming into contact with these parts. In this case, parts of the electrical equipment box 11, the motor 25, the electrical connector, etc. are ceilinged except for the part which needs openings, such as an exhaust hole.

As a position on the rear panel 60 which satisfies such a condition, an area indicated by the width direction range A1 and the width direction range A2 shown in FIGS. 3 and 4 is considered. Therefore, in this embodiment, the outside air inlet 62 is provided in the area | region shown by the width direction range A2.

In addition, in the embodiment, the outside air inlet 62 is provided at a position where the outside air is directly guided to the blower units (fans) 21 and 22 constituting the blower 13. As a result, it is possible to reliably introduce outside air, mix it with the circulating air, and send it out.

In addition, the outside air inlet 62 is connected to the indoor air and the introduced outside air circulated through the suction grill 37 in accordance with the blowing ability of the blower units (fans) 21 and 22 constituting the blower 13. The mixing ratio of is set to have an opening area at a predetermined ratio. As a predetermined ratio, it is set so that the mixing ratio of the outside air to circulating air may be about 10 to 20% (usually about 15%). This mixing ratio is previously determined according to the ventilation capacity (for example, 0.5 / 1hr) per unit time required.

According to the present embodiment, outside air can be easily introduced at the time of operation of the air conditioner to ensure ventilation. In addition, condensation in the air conditioner with the introduction of the outside air can be prevented, and the air conditioner can be operated for a long time.

In the above description, the case where one external air inlet is provided is demonstrated. However, it is also possible to comprise so that it may be provided in multiple site according to the size of the air conditioner main body. More specifically, for example, the outside air inlet may be provided in each of the region shown in the width direction range A1 and the region shown in the width direction range A2 shown in FIGS. 3 and 4.

In addition, in the above description, the case where the outside air inlet is comprised as a knockout panel was described. However, the outside air inlet may be opened in the rear panel 60 in advance, and the blind plate may be configured to be installed using the duct mounting screw hole 63.

In addition, in the above description, although the shape of the outside air inlet was made circular, it is possible to make it arbitrary shapes, such as an ellipse shape and a polygonal shape.

In addition, in the above description, the case where the suction grille was fixed was demonstrated. However, the present invention can also be applied to an air conditioner provided with a suction grille elevating device. This suction grille elevating device supports the suction grille to the air conditioner body through four strapped straps, and lifts the suction grilles to a predetermined range by feeding or rewinding the strapped straps. Then, at the position where the suction grill is lowered, the filter mounted on the suction grill can be removed.

In this case, if it is set as the structure which accommodates a suction grill lifting apparatus in a side cover, since the rear surface panel is preferable for the space provided with the external air inlet, it becomes suitable as an application object of this embodiment.

In the above description, the case where the outside air inlet is provided in the rear panel is described, but it is also possible to be configured to be provided on the side cover side.

Claims (6)

In a ceiling type air conditioner in which a heat exchanger and a blower are arranged in order from a front surface on which a blower is installed, and having a suction grill on a bottom surface of a chamber in which the blower is accommodated and suspended from an indoor ceiling, It is equipped with an air conditioner main body which accommodates an electric component, and has a rear panel, The air conditioner of claim 1, wherein the outside air inlet is provided at a position where the introduced outside air does not directly strike the electric component. The ceiling air conditioner according to claim 1, wherein the outside air inlet is formed of a removable knock-out panel. The ceiling air conditioner according to claim 1, wherein the electric component comprises at least one of a blower motor constituting the blower, an electric box, and an electrical connector. The ceiling type air conditioner according to claim 1, wherein the outside air inlet is provided at a position in which outside air is directly guided to a fan constituting the blower. According to claim 1, The outside air inlet has an opening area in which the mixing ratio of the indoor air circulated through the suction grill and the introduced outside air is a predetermined ratio in accordance with the blowing ability of the fan constituting the blower. Ceiling type air conditioner, characterized in that. 6. The ceiling type air conditioner according to claim 5, wherein the predetermined ratio is determined according to a required ventilation capacity per unit time.

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