JPH08254352A - Air supply flap and air conditioner having this air supply flap - Google Patents

Abstract

PURPOSE: To provide an air supply flap and an air conditioner having this air supply flap capable of preventing dew formation and noise with a simple configuration. CONSTITUTION: In an air conditioner 1, a groove 25 for use in guiding supply air is formed at an air supply flap 7 arranged at an air supply port 5. Since air from the air supply port 5 is regulated with the groove 25 formed at the air supply flap 7, a disturbance of blown air is hardly produced. Accordingly, it is possible to reduce dew formation caused by enclosing wet indoor air around the air supply port 5 and further to reduce noise produced by the enclosing action.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower flap provided at an air outlet and having a guide surface for guiding blown air, and an air conditioner provided with the blower flap.

[0002]

2. Description of the Related Art Generally, in an air conditioner, air whose temperature has been lowered due to heat exchange is blown out from an outlet to cool a room. The blowout port is provided with a flap (airflow direction changing blade) that guides the blowing direction of the low temperature air. Since the flap is cooled by the low-temperature air that blows out, and air is entrained in the blow-out portion, the moist air in the room is entrained, which may cause dew condensation to attach water droplets. Since such water drops fall and wet the floor surface, Japanese Utility Model Publication No. 59-14667 proposes a technique for providing a flap or a flocking member on the wall surface of the outlet to retain the water drops generated by dew condensation.

Further, in Japanese Patent Laid-Open No. 63-118544, in order to prevent mold from being generated in the retained water,
Techniques for antibacterial treatment of flocked members have been proposed.

[0004]

However, if the flap is provided with a flocked member or an antibacterial treatment is applied, the structure becomes complicated and the manufacturing process becomes troublesome. Further, in the structure in which the flocked member is provided on the flap, there is a problem that the flocked member has a resistance to blowing.

On the other hand, as shown in FIG. 6, the trapping of the room air in the flap 41 is particularly likely to occur due to the relationship with the wall surface 45 of the outlet 43 or the like. At both ends 47 in the longitudinal direction of the flap, the turbulence of the blown air is significant. Therefore, there is a problem in that humid air in the room (indicated by a broken line in FIG. 6) is mainly entrained at both ends 47 thereof, which causes not only dew condensation due to the entrainment but also noise due to air turbulence. is there.

Therefore, an object of the present invention is to provide a simple structure,
An object of the present invention is to provide a blower flap capable of preventing dew condensation and noise at an outlet, and an air conditioner having the blower flap.

[0007]

In order to achieve the above object, the invention according to claim 1 is a blower flap provided at an air outlet for guiding air blown by a guide surface. The surface is formed with a groove for rectifying the air to be guided.

According to a second aspect of the present invention, the blower flap of the first aspect has grooves formed at least at both ends thereof.

According to a third aspect of the present invention, in a blower flap provided at an air outlet for guiding air blown by a guide surface, the guide surface is formed with a groove for rectifying the air to be guided. It is characterized by that.

[0010]

In the blower flap according to the first aspect of the present invention, the blown air to be guided is rectified and blown out by the groove formed on the guide surface of the blower flap, so that the blown air is less likely to be disturbed. Therefore, it is possible to prevent the air around the outlet from being entrained, prevent dew condensation due to the entrainment of moist indoor air, and prevent noise due to air turbulence. Moreover, it has a simple structure in which the guide groove is formed on the guide surface of the flap, and is easy to manufacture.

In the blower flap according to the second aspect of the present invention, since the rectifying groove is formed at least at both ends of the blower flap, the turbulence and the entrainment of air are particularly likely to occur in relation to the outlet. I am trying to rectify in the department. Moreover, it is a simple structure in which only the guide groove is formed as in the flap according to the first aspect.

In the air conditioner according to the third aspect of the present invention, since the blower flap according to the first aspect is provided in the outlet, the air conditioner in the air conditioner is entrained around the outlet. It is possible to prevent dew condensation and noise. Moreover, it is possible to adopt a simple structure in which the guide groove is formed on the guide surface of the flap.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the air conditioner 1
FIG. 1 shows an example of a wall-mounted air conditioner in which an indoor unit arranged indoors hangs on a wall in the room.

In this air conditioner 1, a suction port 3 for sucking air is formed in the center of the front surface of a case 2, and a blowout port 5 for blowing air after heat exchange is formed in the lower part.

The blow-out port 5 is formed in a slender shape along the longitudinal direction of the front surface of the case, and the blow-out port 5 is provided with a blowing flap 7 for guiding the blowing direction.

In the case 2, an indoor heat exchanger 9 and a blower 11 which act as an evaporator and exchange heat during cooling operation.
(See FIG. 3) is housed, and the air sucked from the suction port 3 is blown out into the room after heat exchange.

Here, the refrigerant circuit of the air conditioner 1 according to this embodiment will be briefly described with reference to FIG.

A compressor 13, an indoor heat exchanger 9, a pressure reducing device 15, an outdoor heat exchanger 17, a four-way valve 19 as a flow path switching valve, and an accumulator 21 are connected to the refrigerant circuit by a refrigerant pipe. .

The indoor heat exchanger 9 and the outdoor heat exchanger 17 are provided with blowers 11 and 23, respectively, for exchanging heat between the outdoor air or the indoor air and the refrigerant.

The four-way valve 11 constitutes a flow path so that the refrigerant flows in the direction indicated by the broken line arrow during the cooling operation, and constitutes a flow path such that the refrigerant flows in the direction indicated by the solid line arrow during the heating operation. By switching the four-way valve 11 in this manner, the refrigerant flow paths are switched between the cooling and heating.

As shown in FIG. 2, the blower flap 7 arranged at the outlet 5 has a large number of grooves 25 formed on its curved guide surface. These grooves 25 are formed in a slender shape along the air blowing direction, and are configured to straighten the air flowing along the air blowing flaps.

The width, depth, number, etc. of the grooves 25 are not particularly limited, and may be V-shaped grooves or U-shaped grooves in cross section.

Further, it is desirable that the groove 25 is formed over the entire blowing flap 7, but if it is provided at least at both ends, turbulence of the blowing air in relation to the wall surface 5a of the outlet can be prevented, It is possible to prevent generation of dew condensation and noise in that portion (see FIG. 6). Moreover, since the groove 25 guides the blown air, it does not become a blowing resistance, and there is no adverse effect of impairing the blowing ability.

Further, since it has a simple structure in which only the groove 25 is formed in the blower flap 7, the appearance is not hindered.

Next, the operation of this embodiment will be described.

In the case 2, the indoor air sucked from the suction port 3 is the indoor heat exchanger 9 housed in the case.
After passing through and heat exchanged, it is blown out from the outlet 5. At the outlet 5, a blower flap 7 guides the blowing direction.

The air blown from the blower flap 7 is rectified and blown out according to the groove 25 formed in the blower flap 7, so that the blown air is less likely to be disturbed and the blowout port 5
It becomes difficult to cool the peripheral part of the. Therefore, even if the indoor air is entrained in this portion, it is possible to reduce the dew condensation that occurs in this portion and to reduce the noise by reducing the turbulence of the blown air.

On the other hand, when the blower flap 7 is manufactured, the groove 25 is formed in the guide surface of the blower flap 7, so that the manufacture is easy. For example, if a groove corresponding to the mold is provided at the time of molding the blower flap 7, the groove can be formed at the same time when the conventional blower flap is manufactured, or the surface of the blower flap manufactured in the conventional manner can be formed. Groove 25
The groove 25 may be formed by attaching a band-like seal to the surface of a conventional air-blowing flap.

In particular, in this embodiment, since the groove 25 is provided only at the end portion where air turbulence or entrainment is likely to occur due to the relationship with the blowout port 5, rectification at that portion is achieved to effectively prevent dew condensation or noise. Can be prevented.

The present invention is not limited to the above-described embodiments, but can be variously modified without departing from the gist of the present invention.

For example, as shown in FIG. 4, in a so-called four-way type cassette which is attached to the ceiling and blows cold air in four directions, grooves for guiding the air blow to the air blow flaps 7 provided in each of the four blowout ports 5. Similar effects can be obtained even when forming 25. The same effect can be obtained even with a two-way cassette that blows cold air in two directions.

Further, as shown in FIG. 5, the same effect can be obtained even when the groove 25 is formed in the blower flap 7 arranged at the blower opening 5 of the stationary air conditioner placed on the floor. it can.

[0034]

In the blower flap according to the invention described in claim 1, the air blown from the blowout port is rectified according to the groove formed in the blower flap, and the blowing direction thereof is guided. Disturbance is unlikely to occur. The peripheral portion of the outlet 5 is less likely to be cooled. Therefore, even if the indoor air is entrained in this portion, it is possible to reduce the dew condensation that occurs in this portion and to reduce the noise by reducing the turbulence of the blown air. Moreover, it is possible to adopt a simple structure in which the guide groove is formed on the guide surface of the flap.

In the blower flap according to the second aspect of the present invention, the guide groove is formed at least at both ends of the blower flap, so that the turbulence and the entrainment of air are likely to occur particularly in relation to the outlet. I am trying to rectify in the department. Therefore, it is possible to surely reduce the dew condensation and noise that are particularly likely to occur in this portion.

In the air conditioner according to the third aspect of the present invention, since the blower flap according to the first aspect is provided in the outlet, the air conditioner in the air conditioner is entrained around the outlet. Condensation and noise due to can be reduced. Moreover, it is possible to adopt a simple structure in which the guide groove is formed on the guide surface of the flap.

[Brief description of drawings]

FIG. 1 is a perspective view of a wall-mounted air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view of a blower flap used in the air conditioner shown in FIG.

FIG. 3 is a circuit diagram of a refrigerant circuit of the air conditioner according to the present embodiment.

FIG. 4 is a plan view of a four-way cassette type air conditioner according to another embodiment.

FIG. 5 is a perspective view of a stationary air conditioner according to another embodiment.

FIG. 6 is a perspective view showing the entrainment of air in the air outlet when a conventional air blow flap is used.

[Explanation of symbols]

 1 Air conditioner 5 Outlet 7 Blower flap 25 Groove

Claims (3)

[Claims] 1. A blower flap provided at an air outlet for guiding air blown by a guide surface, wherein a groove for rectifying the guided air is formed in the guide surface. Blower flap. 2. The blower flap according to claim 1, wherein the groove formed in the blower flap is formed at least at both ends thereof. 3. The air taken in from the air intake port,
In an air conditioner that passes through a heat exchanger and blows heat from a blowout port after heat exchange, a guide surface of a blower flap provided at the blowout port is formed with a groove for rectifying air to be guided. An air conditioner.