JP2002022199A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner which elevates the cooling efficiency by efficiently radiating the heat from a fan motor. SOLUTION: In an air conditioner where a heat exchanger 5, a drain pan 10 for reserving once the condensed water from the heat exchanger, a fan motor 6 fixed to a motor mount 8, and a fan 7 driven by the fan motor are arranged in an air passage 4 connecting the suction port 2 at the rear 1a of a casing 1 with the blowout port 3 at the front 1b, most of the heat generated by the fan motor is transmitted to condensed water through the motor mount so as to warm the condensed water since the motor mount is erected within the drain pan, and the warmed-up condensed water is drained outside through a drain hose. Thus the air conditioner can efficiently radiate heat without warming the chill within the casing or the air inside a room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to heat radiation of a fan motor.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, an air conditioner, particularly a duct air conditioner, has a suction port 2 at a rear surface 1a of a casing 1 and a blow port 3 at a front surface 1b. The heat exchanger 5 and the heat exchanger 5
A drain pan 10 for temporarily storing condensed water, a fan motor 6, and a fan 7 driven by the fan motor 6.
And are arranged. The fan motor 6 is fixed to a motor mount 8 erected from the front surface 1b of the casing 1. However, in this configuration, the heat generated from the fan motor 6 is radiated into the air through the motor mount 8 and the front surface 1b of the casing 1 as shown in FIG. This causes the indoor air to warm up, lowering the cooling efficiency.
By the way, in recent years, fan motors have been reduced in size due to the demand for miniaturization, and the amount of heat generated has also tended to increase accordingly. Therefore, a method of efficiently dissipating heat from the fan motor has been desired.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide an air conditioner in which heat from a fan motor is efficiently radiated to improve cooling efficiency.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a heat exchanger and a condenser from the heat exchanger in an air passage connecting a suction port on a rear surface of a casing and an air outlet on a front surface. In an air conditioner in which a drain pan for temporarily storing water, a fan motor fixed to a motor mount, and a fan driven by the fan motor are arranged, the motor mount is erected in the drain pan. Is an air conditioner.

[0005] An air conditioner is provided in which a plurality of the outlets are provided and a plurality of the fans are arranged corresponding to the outlets.

An air conditioner is provided in which the fan is housed in a fan casing, a suction hole is provided in a direction of a rotation axis of the fan motor of the fan casing, and a blowout hole is provided facing the blowout port. I have.

[0007] The air conditioner is provided with radiating fins at a lower portion of the motor mount in the drain pan.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an air conditioner according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a part of a main part of an air conditioner according to an embodiment of the present invention, and FIG. As shown in the figure, a suction port 2 is provided on a rear surface 1a of the casing 1 and a plurality of air outlets 3 are provided on a front surface 1b, and a drain pan 10 is provided at a lower portion in the casing 1. A heat exchanger 5 is disposed on a drain pan 10 of the air passage 4 connecting the suction port 2 and the plurality of outlets 3 on the side of the suction port 2 so as to face the suction port 2. Further, a downwardly U-shaped motor mounting base 8 composed of a mounting portion and legs extending downward from both ends thereof is provided upright in the drain pan 10 at the center of the outlet 3 side. The fan motor 6 is fixedly arranged on the base 8. On both sides of the fan motor 6 in the axial direction, a fan 7 composed of two centrifugal fans driven by the fan motor 6 is arranged. The fan 7 has a suction hole 9 a provided in the direction of the rotation axis of the fan motor 6, and a blowout hole 9 b is accommodated in a fan casing 9 facing the blowout port 3. Condensed water dripping from the heat exchanger 5 is temporarily stored in a drain pan 10, and excess condensed water is drained outside through a drain hose (not shown). As described above, the motor mounting base 8 for fixing the fan motor 6 is provided upright in the drain pan 10, and the legs of the motor mounting base 8 located in the drain pan 10 have radiation fins 8a. Are formed, and the radiation fins 8a are soaked in condensed water.

In the above configuration, the fan motor 6
Will be described. As shown in FIG. 2, a part of the heat generated from the fan motor 6 is radiated from the fan motor 6 itself as radiant heat, but most of the heat is transferred to the condensed water via the motor mount 8. Heat is dissipated by warming the condensed water. At this time, the contact area between the motor mounting base 8 and the condensed water is increased by the radiating fins 8a, so that the heat is more efficiently transferred to radiate the heat of the fan motor 6.

[0010]

As described above, according to the air conditioner of the present invention, since the fan motor is fixed to the motor mount erected in the drain pan for temporarily storing the condensed water from the heat exchanger. Most of the heat generated by the fan motor 6 is transferred to the condensed water via the motor mount 8 to warm the condensed water, and the heated condensed water is discharged to the outside via a drain hose. The heat can be efficiently radiated without warming the cold air or the indoor air.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a sectional side view showing a main part of an embodiment of the air conditioner according to the present invention.

FIG. 3 is a partial perspective view showing a conventional air conditioner.

FIG. 4 is a side sectional view showing a main part of a conventional air conditioner.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 casing 1a back surface 1b front surface 2 suction port 3 air outlet 4 air passage 5 heat exchanger 6 fan motor 7 fan 8 motor mounting base 8a radiation fin 9 fan casing 9a suction hole 9b blow hole 10 drain pan

Claims (4)

[Claims] 1. A heat exchanger, a drain pan for temporarily storing condensed water from the heat exchanger, and a fan fixed to a motor mount in an air passage connecting an intake port on the back of the casing and a blow port on the front. An air conditioner comprising a motor and a fan driven by the fan motor, wherein the motor mount is erected in the drain pan. 2. The air conditioner according to claim 1, wherein a plurality of the air outlets are provided, and a plurality of the fans are arranged corresponding to the air outlets. 3. The air conditioner according to claim 1, wherein the fan is housed in a fan casing, a suction hole is provided in a direction of a rotation axis of the fan motor of the fan casing, and a blow hole is provided facing the blow outlet. The air conditioner according to claim 1 or claim 2, wherein 4. The air conditioner according to claim 1, wherein a radiating fin is provided at a lower portion of the motor mount located in the drain pan.