KR20040084985A - Air conditioner - Google Patents

Abstract

PURPOSE: An air conditioner is provided to reduce water remaining in a drain pan by decreasing a volume of the drain pan disposed at the lower part of a heat exchanger and to keep the inside of the drain pan clean by repressing incrustation or mosquitoes by drying the drain pan. CONSTITUTION: An air conditioner is composed of a unit body(7) installed at the ceiling of a building; a heat exchanger(18) and a blowing fan(19) received in the unit body; a drain pan(37) for storing the condensate generated from the heat exchanger; a drain pump(41) for discharging the water stored in the drain pan; and a solid material(45) installed in the drain pan to reduce the volume of the drain pan. The inside of the unit body is divided into a heat exchanger chamber(33) for receiving the heat exchanger and a blower chamber(34) for receiving the blowing fan. The drain pan is installed whole over the lower part of the heat exchanger. The drain pan comprises a dew receiving unit(44) for receiving the condensate and a storing recessed unit(38) for keeping the condensate. The solid material is arranged in the dew receiving unit to decrease the volume of a condensate receiving part.

Description

Air Conditioner {AIR CONDITIONER}

The present invention relates to an air conditioner having a heat exchanger and a blowing fan in a unit main body installed in a ceiling of a building.

2. Description of the Related Art A built-in air conditioner in which a heat exchanger and a blowing fan are accommodated in a unit main body installed in a ceiling space of a building is known.

In this type of air conditioner, for example, a blower duct is extended to the side of the unit main body, and the air exchanged by the heat exchanger can be blown into the room by guiding the air to the proper position in the room through the blower duct. The most suitable air conditioning can be realized without damaging aesthetics.

As shown in Figs. 5 and 6, the built-in type air conditioner includes a panel type built-in type air conditioner 61 and a duct type built-in type air conditioner 7l. The panel specification built-in air conditioner 61 sucks indoor air from the ceiling panel 62 provided on the lower surface of the unit main body 61A and installed on the ceiling plate. On the other hand, the duct specification built-in air conditioner 71 is provided with a suction duct 72 on the rear surface of the unit main body 71A to suck the indoor air through the suction duct 72.

In these unit main bodies 61A and 71A, as shown in FIG. 7, the partition plate 81 is provided in the box member 80, and the heat exchanger chamber in which the heat exchanger 82 is accommodated by this partition plate 81 is shown. 83 and the blower chamber 85 in which the blowing fan and the fan motor 84 are accommodated. In the heat exchanger chamber 83, the drain pan 86 which receives the condensed water from the heat exchanger 82 is arrange | positioned at the lower part, and the drain pump 87 is provided above this drain pan 86, and the drain pump ( The suction port 88 of 87 is provided at a position slightly above the bottom surface 89 of the drain pan 86 (see Patent Document 1, for example).

[Patent Document 1]

Japanese Patent Laid-Open No. 2000-283491

By the way, the condensate generated in the heat exchanger 82 during the cooling operation becomes a drain and is stored in the drain pan 86. Most of the stored drain is sucked up by the drain pump 87 and drained, but since the suction port 88 of the drain pump 87 is slightly above the bottom surface 89 of the drain pan 86, the drain is drained. A little drain remains in the fan 86. The remaining drain is evaporated by the heat in the ceiling.

However, in the drain pan 86, a drain which does not evaporate may accumulate on the bottom surface 89 for a long time, and dust in the room adheres to the accumulated drain, and further, on the surface of the drain pan 86 due to the action of bacteria. Scalding may occur (possibly mosquitoes).

When this scale is dried and solidified, and this scale solidified in the vicinity of the inlet port 88 of the drain pump 87, it is difficult to inhale the drain or the inlet port 88 may be blocked.

DISCLOSURE OF THE INVENTION An object of the present invention has been made in consideration of the above-described circumstances, and an object of the present invention is to provide an air conditioner in which a drain remaining in the drain pan is reduced and the scale and mosquito generation caused by the drain are suppressed.

1 is a side view of a panel specification built-in air conditioner according to an embodiment of the present invention.

2 is a side view of a duct specification built-in air conditioner according to an embodiment of the present invention.

Fig. 3 is a sectional view showing the unit body of the air conditioner of Fig. 2;

4 is a plan view of the drain pan;

5 is a perspective view of a conventional panel specification built-in air conditioner.

6 is a perspective view of a conventional duct specification built-in air conditioner.

Fig. 7 is a sectional view showing the unit body of the air conditioner of Fig. 6;

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

1: Panel specification built-in air conditioner

2: Duct Specification Built-in Air Conditioner

3: building

4: ceiling

6: ceiling space (ceiling)

7: unit body

8: blowout duct

18: indoor heat exchanger

19: blowing fan

20: fan motor

22: drain piping port

32: partition plate

33: heat exchanger room

34: blower room

37: drain pan

38: storage recess

41: drain pump

43: suction port

44: dew receiving part

45 solids

In order to achieve the above object, the invention described in claim 1 includes a unit main body installed in a ceiling of a building, a heat exchanger and a blowing fan accommodated in the unit main body, a drain pan for storing condensed water generated in the heat exchanger, In the air conditioner provided with the drain pump which drains the water stored by this drain pan, the solid substance which reduces the content of the drain pan is arrange | positioned in the said drain pan, It is characterized by the above-mentioned.

The invention according to claim 2 includes a unit main body installed in a ceiling of a building, a heat exchanger and a blowing fan accommodated in the unit main body, a drain pan for storing condensed water generated in the heat exchanger, and a drain pan. A drain pump for draining water, and the unit body is divided into a heat exchanger chamber accommodating the heat exchanger and a blower chamber accommodating the blower fan, and the drain fan is provided in an air conditioner installed throughout the lower portion of the heat exchanger chamber. The drain pan has a dew receiving portion for receiving condensate from a heat exchanger and a storage recess for storing condensate, and a solid material is disposed in the dew receiving portion to reduce the volume of the condensate receiving portion.

Invention of Claim 3 arrange | positioned the solid substance which reduces the internal volume of a storage recessed part in the said storage recessed part in the air conditioner of Claim 2, It is characterized by the above-mentioned.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

1 is a side view of a panel specification built-in air conditioner according to an embodiment of the present invention, FIG. 2 is a side view of a duct specification built-in air conditioner according to an embodiment of the present invention, and FIG. It is sectional drawing which shows the unit main body of an air conditioner.

The panel-specific built-in air conditioner 1 shown in FIG. 1 and the duct-specific built-in air conditioner 2 shown in FIG. 2 simultaneously form a space between the ceiling 4 and the ceiling plate 5 of the building 3. It is suspended and arranged in the ceiling space 6 of the unit, and is comprised with the unit main body 7, the blowing duct 8, and the electrical mounting box 9 for operation control.

The box member 12 of the unit main body 7 is arranged to face each other, and the ceiling plate 14 is pressed by a drain pan against a portion of the lower edge of the ceiling plate 14 of the four side plates 13 arranged in a rectangular frame shape. Each board 15 is fixed and comprised. The heat insulating material is affixed to the inner and outer surfaces, or the inner or outer surface (outer surface in this embodiment) of these side plates 13, the ceiling board 14, and the drain pan press board 15. As shown in FIG.

The suspension member 16 is fixedly attached to the side plate 13 of the box member 12 of the unit main body 7, and the suspension member 16 is suspended from the ceiling 4 of the building 3 vertically. It is fixed by (17), and the spring specification built-in air conditioner 1 or the duct specification built-in air conditioner 2 is comprised so that it can be suspended to the ceiling 4 of the building 3.

The unit body 7 is configured to accommodate an indoor heat exchanger 18, a blowing fan 19, and a fan motor 20 shown in FIG. 3 inside the box member 12. As shown in FIG. The heat exchanger 18 is connected to the outdoor unit not shown using the refrigerant pipe connected to the two refrigerant pipe connection ports 21 provided in the side of the unit main body 7. As shown in FIG. The heat exchanger 18 of the unit main body 7 cools or heats the air sucked into the unit main body 7 by evaporation or condensation of the refrigerant derived from the outdoor unit as described later.

1 and 2, reference numeral 22 denotes a drain pipe connection port.

As for the said blowing duct 8 shown in FIG. 1, the several line is normally extended from the unit main body 7. As shown in FIG. Each of the jet ducts 8 is fitted with one end fitted into a jet port 23 integrally provided at one side plate 13A of the box member 12 of the unit body 7, and the jet grill 24 is provided at the other end thereof. Attached. The jet grill 24 is provided at an appropriate position of the ceiling plate 5. By rotation of the fan of the unit main body 7, indoor air is sucked in the unit main body 7 as mentioned later, and the air heat-exchanged by the heat exchanger 18 passes through the blowing duct 8, and blows off the grill ( It is ejected to the room from 24).

By the way, in the panel specification built-in air conditioner 1 shown in FIG. 1, the ceiling panel 25 is fitted in the lower opening of the unit main body 7. As shown in FIG. The ceiling panel 25 has a suction opening at a central position, and sucks indoor air from the suction opening and introduces it into the unit main body 7.

In addition, the duct specification built-in air conditioner 2 shown in FIG. 2 is the one side plate 13 of the box member 12 of the unit main body 7, and faces the side plate 13A in which the blower outlet 23 was provided. A suction opening (not shown) is formed in the side plate 13B, and usually one suction duct 27 is continuously provided in the side plate 13B via, for example, a filter box 26. The suction grille 28 is fitted to one end of the suction duct 27, and the suction grille 28 is installed at an appropriate position of the ceiling plate 5. Room air is blown in from the suction grill 28 and is sucked into the unit main body 7 through the suction duct 27.

Moreover, the lower opening of the unit main body 7 of the duct specification built-in air conditioner 2 is closed by the wind shielding plate 31 (of the unit main body 7 of the panel specification built-in air conditioner 1). Lower opening is open]. In this embodiment, a heat insulating material is attached also to the outer side of this wind shielding plate 31. In addition, as shown in FIG. 2, the electrical mounting box 9 is provided on the side plate 13C in which the ejection duct 8 or the suction duct 27 is not disposed among the side plates 13 of the unit body 7. Attached.

By the way, in the box member 12 of the unit main body 7, as shown in FIG. 3, the heat exchanger chamber 33 which accommodates the indoor heat exchanger 18 by the partition plate 32, a fan, and a fan motor. It is partitioned into a blower chamber (34) for receiving. This partition plate 32 is fixed to the ceiling board 14 by the self-tab screw which is not shown in figure.

The partition plate 32 is formed by expanding the reinforcing beads 35 extending in a T-shape, and the blower opening 36 is opened. By forming the reinforcing beads 35, the strength of the partition plate 32 is increased. In addition, the air vent 36 is formed corresponding to the attachment position of the fan to guide the air blowing from the fan into the heat exchanger chamber 33.

The drain pan 37 is arrange | positioned under the heat exchanger chamber 33, and this drain pan 37 is coat | covered with the drain pan press plate 15. As shown in FIG. The drain pan 37 is generally formed with foamed resins, such as foamed styrol. In addition, the drain pan presser plate 15 is formed in the substantially long shape similarly to the wind shield plate 25.

The side edge portion 15E of the drain pan presser plate 15 is fastened together with the side edge portion of the wind blocker 25 to the partition plate 32 using a self-cap screw or the like to be fixed. In addition, the three other side edge portions 15F of the drain pan press plate 15 are fixed to the side plates 13A, 13C, 13D of the box member 12 by a self tap screw or the like. In addition, three other side edge portions of the wind shield plate 25 are fixed to the side plates 13B, 13C, 13D of the box member 12 by a self-cap screw or the like.

By the way, the drain pan 37 is installed over almost the entire lower part of the heat exchanger chamber 33, and as shown in Figs. 3 and 4, the planar dew receiver receiving the condensed water from the heat exchanger 18. 44 and a storage recess 38 for storing condensed water are formed. This dew receiving part 44 is inclined downward toward the storage recessed part 38, and is comprised. The part 45 of the dew receiver 44 separated from the heat exchanger 18 is laid with a solid material 45 made of foamed styrol, and is laid down to reduce the volume of the dew receiver 44 to the lower portion of the heat exchanger 18. Only the channel to the storage recessed part 38 is formed. The surface of the solid 45 is covered with a cover 46.

The storage concave portion 38 is provided at one end side of the drain pan 37 to temporarily store the drain. The float switch 39 is disposed inside the storage concave portion 38 and the drain pump 41 is disposed above. It is. The float switch 39 detects the water level of the storage recess 38 to operate the drain pump 41 when the water level reaches a predetermined position. The drain pump 41 has its outlet connected to the drain piping connector 22 (FIGS. 1 and 2), and the suction port 43 as the inlet is in the reservoir recess 38, and the reservoir recess 38 It is installed in the position slightly upward from the bottom surface of). In the storage recessed part 38, the solid material 45 which was made of foamed styrol was laid in the part other than the drain pump 41, the arrangement part of the float switch 39, and the part which faces the dew receiving part 44, As a result, the volume of the storage recess 38 is reduced. The surface of the solid material 45 is covered with the cover 47.

The condensed water generated in the indoor heat exchanger 18 becomes drain water and is dropped into the dew receiver 44 of the drain pan 37. After the drain water is stored in the storage concave portion 38, the drain water is pumped up by the drain pump 41 and forcedly drained past the drain pipe (not shown) connected to the drain pipe connection port 22.

In the drain pan comprised in this way, the following effects are exhibited.

Since the contents of the dew receiver 44 are reduced, the condensed water flowing down from the heat exchanger 18 is dropped into the dew receiver 44, and then quickly flows into the storage recess 38 without being spread and the dew receiver ( The surface of 44 is easy to dry, and the dew receiving part 44 inside can be kept clean.

In addition, since the inner surface of the storage concave portion 38 is reduced, the water surface of the storage concave portion 38 rises quickly and the drain pump 41 starts to operate quickly. The drain is barely retained in the storage concave portion 38 below the suction port 43 of the drain pump 41. However, since the amount of drain water is small, the storage concave portion 38 is easy to dry, and thus it is possible to suppress the occurrence of water and mosquitoes. .

In addition, since the inner volume of the reservoir recess 38 is reduced, the scale of the scale is limited. For this reason, since the solidified material produced by this scale is sucked into the drain pump 41 and drained with the drain, without blocking the suction port 43 of the drain pump 41, the failure of the drain pump 41 is avoided. can do.

As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this.

As mentioned above, according to the air conditioner which concerns on this invention, since the internal volume of the drain pan arrange | positioned in the lower part of a heat exchanger chamber was reduced, the quantity of water which remains in a drain pan reduces, and it is easy to dry in a drain pan, and water and a mosquito generate | occur | produce. Can be suppressed to keep the inside of the drain pan clean.

Claims (3)

A unit main body installed in the ceiling of the building, a heat exchanger and a blowing fan accommodated in the unit main body, a drain pan for storing condensed water generated in the heat exchanger, and a drain pump for draining water stored in the drain pan. In the equipped air conditioner, The air conditioner arrange | positioned in the said drain pan which reduces the internal volume of the drain pan. A unit main body installed in the ceiling of the building, a heat exchanger and a blowing fan accommodated in the unit main body, a drain pan for storing condensed water generated in the heat exchanger, and a drain pump for draining water stored in the drain pan. And a heat exchanger chamber for accommodating the heat exchanger in the unit main body, and a blower chamber for accommodating the blower fan, wherein the drain fan is provided in an air conditioner provided in the entire lower portion of the heat exchanger chamber. And the drain pan has a dew receiving portion for receiving condensate from a heat exchanger and a storage recess for storing condensate, and a solid material is disposed in the dew receiving portion to reduce the volume of the condensate receiving portion. The air conditioner according to claim 2, wherein a solid material for reducing the internal volume of the storage recess is disposed in the storage recess.