WO2005052455A1

WO2005052455A1 - Ceiling suspension type air conditioner

Info

Publication number: WO2005052455A1
Application number: PCT/JP2004/017382
Authority: WO
Inventors: Nobuhiro Ogura; Seiichi Koga; Masazumi Makino; Jin Yoshida; Morinobu Iijima; Takeshi Watanabe; Kazuhiro Shimura; Masanori Akutsu; Yoshinobu Hamada
Original assignee: Toshiba Carrier Corporation; Advanced Air-Conditioning Research And Development Center Co., Ltd.; Sanyo Commercial Service Co., Ltd.
Priority date: 2003-11-30
Filing date: 2004-11-24
Publication date: 2005-06-09
Also published as: EP1693626A1; JP2005164213A; CN1902446A; JP4417101B2; EP1693626B1; KR20060105764A; EP1693626A4

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

Technical field

TECHNICAL FIELD [0001] The present invention relates to a ceiling-suspended air conditioner that is suspended from an indoor ceiling and installed.

[0002] In an air conditioner, a suction grill for taking in air in a room to be conditioned and an outlet for blowing out conditioned air are provided.

For example, in a ceiling-suspended air conditioner configured to be suspended from the indoor ceiling using suspension bolts (for example, see Patent Document 1), the bottom surface of the air conditioner body (the floor of the building) (A surface facing the air conditioner) is provided with a suction grill, and an air outlet is provided on the front side of the air conditioner body.

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

Disclosure of the invention

Problems to be solved by the invention

[0003] By the way, conventional air conditioners usually have a ventilation function only by circulating indoor air.

On the other hand, in recent years, sick house syndrome has become a major social problem. For example, according to the Building Standards Law of Japan, a living room in a house must be able to operate 24 hours a day, with a ventilation rate of 0.5 times Zh or more (the ability to replace the air volume (volume) of a house in 2 hours). Is required to be installed.

[0004] However, providing ventilating equipment in addition to the air conditioner in the room while increasing the equipment cost increases. As a result, the installation area of the entire air conditioning system is also required.

. Furthermore, the appearance of the room will be impaired due to the outside of the air conditioner and the ventilation equipment connected.

Therefore, an object of the present invention is to easily introduce outside air during the operation of the air conditioner, to prevent dew condensation in the air conditioner due to the introduction of outside air, and to provide a long-term operation. It is to provide an operable air conditioner.

Means for solving the problem

[0005] In order to solve the above-mentioned problems, heat exchange and a blower are arranged in the order of a front force provided with an air outlet, and a suction grill is provided on a bottom surface of a room in which the blower is housed, and is suspended from an indoor ceiling. The ceiling-mounted air conditioner to be installed and installed is provided with an air conditioner main body having electrical components and having a rear panel, and a position where the introduced outside air does not directly hit the electrical components on the rear panel. It is characterized by having an outside air inlet.

According to the above configuration, by connecting the air supply duct to the outside air inlet, the outside air can be easily introduced during the operation of the air conditioner, and the introduced outside air does not directly hit the electrical components. Since the outside air inlet is provided at the position, dew condensation in the air conditioner due to the introduction of outside air can be prevented.

[0006] In this case, the outside air inlet may be configured as a removable knockout panel.

Further, the electrical component may include at least one of a blower motor, an electrical box, and an electrical connector that constitute the blower.

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

[0007] Further, in the outside air introduction port, a mixing ratio of room air circulated through the suction grille and the introduced outside air becomes a predetermined ratio according to a blowing capacity of a fan constituting the blower. It may have such an opening area.

Further, the predetermined ratio may be determined according to a required ventilation capacity per unit time.

The invention's effect

[0008] According to the present invention, outside air can be easily introduced during the operation of the air conditioner, and dew condensation and the like in the air conditioner due to the introduction of the outside air can be prevented. Operation of the air conditioner becomes possible.

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings.

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

[0010] As shown in FIG. 1, the ceiling-suspended air conditioner 1 includes an air conditioner body la and a casing 12A. The casing 12A includes a resin side cover 45 located on both sides of the air conditioner main body la, a bottom panel 14 and a suction grille 37 arranged on a lower (bottom) side of the air conditioner main body la. RU

[0011] Further, the casing 12A is provided with a receiving window 50 in which a receiving unit (not shown) for receiving an instruction signal of a remote controller (not shown) for controlling the air conditioner main body la is disposed on the back surface thereof. Puru.

As shown in FIG. 2, the air conditioner main body la is installed and fixed to the lower surface of the indoor ceiling plate 5 by being hung by a suspension bolt 3 suspended from the ceiling. The air conditioner main body la is provided with an outlet 41 on the front side. In the air conditioner main body la, a heat exchanger 15 and a blower 13 are arranged in order from the front side. In the outlet 41, a louver 51 for adjusting the wind direction is arranged. Further, in addition to the above, various devices such as the electrical component box 11 and the refrigerant pipe 29 are stored in the air conditioner body la.

As shown in FIG. 3, the blower 13 of the present embodiment includes two blower units (fans) 21 and 22 in a blower room 13X. These blower units 21 and 22 are fixed and arranged on a rotating shaft 27 driven by one motor 25.

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

As shown in FIG. 2, a drain pan 31 made of styrene foam is provided below the heat exchanger 15. A sheet metal panel 33 is provided on the lower surface of the drain pan 31. As shown in FIG. 3, a drain pump unit 35 is connected to a drain reservoir 31a of the drain pan 31 via a flexible tube 32. The drain housed in this drain pump unit 35 The drain pump sucks up the drain collected in the drain pool 3 la and discharges it to the outside of the air conditioner main unit la.

As shown in FIG. 2, a suction grille 37 made of resin is installed below the blower 13. An air purifying filter 39 is attached to the suction grill 37. Then, when the blower 13 is driven, the indoor air is sucked into the air conditioner main body la through the suction grill 37 and the filter 39. The air sucked into the air conditioner main body la is heat-exchanged by heat exchange 15, the wind direction is adjusted by the louver 51, and the air is blown into the room through the air outlet 41.

The middle partition plate 43 is a partition plate that transversely partitions substantially the center of the air conditioner body la. The blower 13 is disposed in a room partitioned by the middle partition plate 43.

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

A rear panel 60 is provided on the rear side of the air conditioner body la. Prior to installation, the rear panel 60 has a pipe connection hole 61 in which a resin lid 61A is fitted, and an open air inlet port that is configured as a knockout panel that is partly punched out. Various holes, such as wiring holes, are provided.

Around the outside air inlet 62, a duct mounting screw hole 63 is provided. Duct piping 64 is connected to the screw hole 63 for duct attachment as necessary.

The room partitioned by the rear panel 60 and the middle partition plate 43 constitutes the above-described blower room 13X. In the blower room 13X, the above-mentioned electrical box 11 and the blower 13 are arranged.

[0017] In this case, the outside air introduction port 62 is directly connected to an electric component including at least one of the electric component box 11, the motor 25 constituting the blower 13 and an electric connector used for these components. It is installed in a position where it does not hit and does not interfere with the installation of piping.

Here, the outside air introduction port 62 is placed at a position where the introduced outside air does not directly hit the electrical components including at least one of the electrical box 11, the motor 25 constituting the blower 13, and the electrical connector used for these. It is recommended that these components be exposed to outside air and not condensed. This is to suppress the occurrence of throat and deterioration of components. In this case, the components such as the electrical box 11, the motor 25, and the electrical connector are sealed except for a portion requiring an opening such as an exhaust hole.

As the position on the rear panel 60 that satisfies these conditions, a region indicated by the width direction range A1 and the width direction range A2 shown in FIGS. 3 and 4 can be considered. Therefore, in the present embodiment, the outside air inlet 62 is provided in the area indicated by the width direction range A2.

In addition to this, in the embodiment, the outside air inlet 62 is provided at a position where 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 circulating air, and send it out.

Further, the outside air inlet 62 is provided between the room air circulated through the suction grill 37 and the introduced outside air in accordance with the blowing capacity of the blower units (fans) 21 and 22 constituting the blower 13. The opening area is set so that the mixing ratio becomes a predetermined ratio. The predetermined ratio is set so that the mixing ratio of outside air to circulating air is about 10-20% (usually about 15%). This mixing ratio is predetermined according to the required ventilation capacity per unit time (for example, 0.5 Zlhr).

According to the present embodiment, the outside air can be easily introduced during the operation of the air conditioner to reliably perform the ventilation. In addition, dew condensation in the air conditioner due to the introduction of outside air can be prevented, and the air conditioner can be operated for a long time.

In the above description, the case where one outside air inlet is provided has been described. However, it is also possible to provide a structure in which it is provided at a plurality of locations according to the size of the power air conditioner body. More specifically, for example, an outside air inlet may be provided in each of the region indicated by the width direction range A1 and the region indicated by the width direction range A2 shown in FIGS.

In the above description, the case where the outside air inlet is configured as a knockout panel has been described. It is also possible to provide a structure in which the outside air introduction port is opened in the rear panel 60 and the blind plate is attached using the screw holes 63 for duct attachment.

Further, in the above description, the shape of the outside air inlet is circular, but it is oval. Any shape such as a shape or a polygonal shape is possible.

Further, in the above description, the case where the suction grill is of a fixed type has been described. However, the present invention is also applicable to an air conditioner having a suction grill elevating device. In this suction grill elevating device, the suction grill is supported on the air conditioner main body via four suspension cords, and these suspension cords are fed out or rewound, so that the suction drill is moved within a predetermined range. Go up and down. Then, when the suction grill is lowered, the filter placed on the suction grill can be removed.

In this case, if the suction grill elevating device is configured to be housed in the side cover, the space in which the outside air inlet is provided is preferably the rear panel, which is suitable for the present embodiment.

In the above description, it is also possible to adopt a configuration in which the outside air introduction port is provided on the side of the force side cover described in the case where the outside air introduction port is provided on the rear panel.

Brief Description of Drawings

FIG. 1 is a perspective view showing an external configuration of a ceiling-mounted air conditioner of an embodiment.

FIG. 2 is a cross-sectional view showing the internal structure of the air conditioner body.

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

[4] Fig. 4 is a partially exploded perspective view of a rear side force of the air conditioner body.

FIG. 5 is a partially enlarged perspective view of a rear side force of the air conditioner main body.

Explanation of symbols

[0025] 1 Ceiling-type air conditioner

la Air conditioner body

11 Electrical box (electric components)

14 Bottom panel

25 Motor (Electrical components)

37 Suction grill

39 Huinoleta

41 outlet

45 Side cover Rear panel Piping connection hole Lid External air introduction PI

Claims

The scope of the claims

[1] A heat exchanger and a blower are arranged in the order of the front force at which the blower is provided, and a ceiling grill which is installed to be suspended from the ceiling of the room with a suction grill at the bottom of the room in which the blower is stored Type air conditioner,

Equipped with an air conditioner main body that houses electrical components and has a rear panel,

The ceiling-mounted air conditioner, wherein the rear panel is provided with an outside air introduction port at a position where the introduced outside air does not directly hit the electrical components.

[2] The ceiling-suspended air conditioner according to claim 1,

The ceiling-mounted air conditioner, wherein the outside air inlet is configured as a detachable knockout panel.

[3] The ceiling-mounted air conditioner according to claim 1,

The ceiling-mounted air conditioner, wherein the electrical component includes at least one of a blower motor, an electrical box, and an electrical connector that constitute the blower.

[4] The ceiling-mounted air conditioner according to claim 1,

The ceiling-mounted air conditioner, wherein the outside air inlet is provided at a position where outside air is directly guided to a fan constituting the blower.

[5] The ceiling-mounted air conditioner according to claim 1,

The outside air inlet has an opening area such that a mixing ratio of room air circulated through the suction grille and the introduced outside air becomes a predetermined ratio according to a blowing capacity of a fan constituting the blower. A ceiling-suspended air conditioner, comprising:

[6] The ceiling-suspended air conditioner according to claim 5,

The said predetermined ratio is determined according to the required ventilation capacity per unit time, The ceiling-suspended air conditioner characterized by the above-mentioned.