JPH07139797A - Air conditioner - Google Patents

Abstract

PURPOSE:To obtain comfortable humidified air having no cold air feeling for a human skin by substantially branching dehumidified cold air forward and heating warm air downward to be diffused at the time of dehumidifying of an air conditioner. CONSTITUTION:An air layer cooled and dehumidified by an. evaporator 5a at one side of intake indoor air and an air layer heated by a reheater 5b at the other are sucked into a cross-flow fan 6. The heated air layer is passed through a rear outer periphery, the dehumidified air layer is passed near the center in the fan 6, and a substantially laminar flow is held in an air passage 4 to be diffused. A wind direction guide 8 formed in a protrusion state at a rear side is provided at the center of the passage 4, the heater layer diffused from the fan 6 is held below and the cooled layer is held above. An upper wind direction control plate 7a is directed forward, a lower wind direction control plate 7b is directed downward, the cooled air is diffused forward, and the warmed air is diffused downward.

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 an apparatus for dividing air blown from an air outlet of an indoor unit into two layers.

[0002]

2. Description of the Related Art Recent air conditioners for home use have a high humidity from spring to summer, especially in the rainy season. Therefore, dehumidification operation is performed to prevent discomfort and keep a comfortable indoor environment. There are many things that I try to do. As shown in FIG. 3, the indoor unit of the air conditioner includes a suction port 2 in the upper front portion,
A heat exchanger 5 having an upright portion on the front side and a rearwardly inclined portion mounted on the upright portion is arranged in an air passage 4 connecting an inlet 2 and an outlet 3 of a housing 1 having an outlet 3 at a lower front portion. , The same heat exchanger 5
A cross-flow fan 6 is arranged behind the upright portion of the above, and the air outlet 3 is provided with two wind direction control plates 7a and 7b. In order to perform the dehumidifying operation, as shown in FIG. 3 (A), the upright portion on the front side and the half of the front surface and the upper surface of the heat exchanger 5 on which the rear slanted portion is mounted are placed on the evaporator 5a and the rear surface. The lower surface is formed as a reheater 5b, the sucked indoor air is cooled and condensed by the evaporator 5a, and heated by the reheater 5b to dehumidify without changing the air temperature. Alternatively, as shown in FIG. 3 (B), the heat exchanger 5 provided upright on the front side is an evaporator 5a, and the heat exchanger 5 provided on the front side and inclined rearward is a reheater 5b. It has been proposed that the sucked indoor air is separately cooled and condensed by the evaporator 5a, and the air heated by the reheater 5b is mixed in the air passage 4 to dehumidify without changing the air temperature. However, in these dehumidifying operations, the dehumidified air blown out from the air outlet 3 has a low humidity, and when it comes into direct contact with human skin, it gives a cold sensation and rather feels cold.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a structure in an indoor unit having an evaporator and a reheater which are independent of each other, and can perform comfortable air conditioning without giving a feeling of cool air during dehumidifying operation. .

[0004]

According to the present invention, an upright portion and a rearward inclination are provided in an air passage connecting a suction port and a blowout port of a casing having a suction port at a front upper portion and a blowout port at a lower front portion. In which a heat exchanger and a cross flow fan are arranged, and an air flow direction control plate is provided at the air outlet, and an air flow direction guide is provided between the cross flow fan and the air flow direction control plate in the air passage. It is characterized by that. Further, the wind direction guide that curves backward along the air passage is provided at a position that vertically divides the space between the blower and the two wind direction control plates.

[0005]

According to the present invention, in the dehumidifying operation, the indoor air sucked from the suction port at the upper front portion of the housing is cooled to one side by the cooled air condensed by the evaporator installed upright on the front side. ,
On the other hand, the air heated by the upper reheater is not mixed in the cross flow fan except for a part thereof and forms a laminar flow and flows to the air outlet on the lower front side. By holding the laminar flow up to the outlet by the wind direction guide provided between the cross flow fan and the two wind direction control plates provided at the air outlet, the upper air direction control plate is directed forward and the lower air direction control plate is directed downward. The dehumidifying operation can be performed by blowing cool air forward and warm air downward so that cool air does not directly contact the human skin.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1 (A), a heat exchanger 5 is provided upright on the front side along a suction port 2 provided on the upper front surface of the housing 1.
To the evaporator 5a, the heat exchanger 5 provided on the evaporator 5a inclined rearward to serve as the reheater 5b, the crossflow fan 6 is arranged to the rear of the evaporator 5a, and the blower outlet is provided at the lower front portion of the housing 1. 3 is provided, and the air outlet 3 is provided with two wind direction control plates 7a and 7b to form an indoor unit during dehumidification operation. During dehumidifying operation,
One of the sucked indoor air is cooled and condensed by the evaporator 5a and the other is heated by the reheater 5b, so that the air layer dehumidified by cooling and the air layer heated backward are sucked into the crossflow fan 6. Be done. In the cross-flow fan 6, mixing occurs at the boundary between the cooled air layer and the heated air layer, but the heated air layer accelerates through the rear outer peripheral portion of the cross flow fan 6 and the cooling air layer passes through the central portion. The air passage 4 between the cross flow fan 6 and the wind direction control plates 7a and 7b
Is discharged while maintaining a laminar flow. In the center of this air passage, along the flow path, an air flow direction guide 8 formed in a backward curved shape is provided, and the heated air layer discharged from the cross flow fan 6 is located below and the cooling air layer is located above. With the flow kept, the upper wind direction control plate 7a is directed forward and the lower wind direction control plate 7b is directed downward so that the cooled air is blown forward and the warm air is blown downward. Note that, in FIG. 2, the functions of the evaporator 5a and the condenser 5c and the vertical airflow direction control plate 7 during cooling and heating.
The optimum directions of a and 7b are shown.

[0007]

As described above, according to the present invention, in the dehumidifying operation, one of the indoor air sucked from the suction port at the upper front surface of the housing is the evaporator installed upright on the front surface side. The cooled condensed air and the air heated by the upper reheater on the other side form a laminar flow and are mixed in the crossflow fan except for a part of the air, but the laminar flow is maintained and the air blown under the front surface is blown. It flows to the exit. Therefore, the laminar flow is maintained up to the outlet by the air flow guide provided between the cross flow fan and the two air flow control plates provided at the air outlet, and the upper air flow control plate is directed forward and the lower air flow control plate is directed downward. This makes it possible to perform a comfortable dehumidifying operation in which the cool air is blown forward and the warm air is blown downward to prevent the cool air from directly contacting the human skin.

[Brief description of drawings]

FIG. 1A is a vertical sectional view showing an outline of an embodiment of the present invention, and FIG. 1B is a vertical sectional view showing a flow of air.

FIG. 2 is a vertical cross-sectional view showing the function of the heat exchanger during cooling and heating and the optimum direction of the vertical airflow direction control plate.

FIG. 3 is a vertical sectional view showing an outline of a conventional dehumidifying operation.

[Explanation of symbols]

 1 case 2 suction port 3 air outlet 4 air passage 5 heat exchanger 5a evaporator 5b reheater 6 cross flow fan 7a upper wind direction control plate 7b lower wind direction control plate 8 wind direction guide

Claims (2)

[Claims] 1. A heat exchanger comprising an upright portion and a rearwardly inclined portion and a cross in an air passage connecting a suction port and a blowout port of a casing having a suction port at a front upper portion and a blowout port at a lower front portion. An air conditioner in which a flow fan is arranged and an air flow direction control plate is provided at the air outlet, wherein an air flow direction guide is provided between the cross flow fan and the air flow direction control plate in the air passage. Machine. 2. The wind direction guide curved backward along an air passage is provided at a position vertically dividing the space between the blower and the two wind direction control plates. Air conditioner.