JPH08271032A - Air conditioner - Google Patents

Abstract

PURPOSE: To provide an air conditioner where no water condensate is dripped or no air shortage is generated. CONSTITUTION: A main flap 11 is formed of an approximately flat-V shaped section in its shorter direction, and a projecting surface 11a of the flap is faced downward. A recessed groove 12 is formed along the projecting surface 11a of the flap in its longitudinal direction. As a result, sufficient amount of conditioned air flows over the projecting surface of the main flap 11 to suppress the vapor condensation in the cooling operation. Even when the vapor condensation is generated to form the water drop, the water drop is diffused by the recessed groove 12 formed in the projecting surface 11a of the flap to prevent the water drop from growing to a large drop and dripping.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with a front air inlet and an air outlet below and a flap for changing the direction of the conditioned air discharged from the air outlet.

[0002]

2. Description of the Related Art In a conventional air conditioner, for example, a separation type air conditioner consisting of an indoor unit and an outdoor unit,
The indoor air sucked from the air suction port by the fan is passed through the heat exchanger to be cooled or heated, and then blown out into the room from the air outlet.

FIG. 7 is a side sectional view of an indoor unit of such a separation type air conditioner, in which 1 is an indoor unit, 2 is an air inlet, and this air inlet 2 is the indoor unit 1.
Is formed on the front cover 1a provided on the front surface of the.
Reference numeral 3 denotes a cross-flow fan, which sucks indoor air from the air suction port 2 and blows out the air after heat exchange. A heat exchanger 4 is arranged between the air suction port 2 and the cross flow fan 3, and cools the air sucked by the fan 3 during the cooling operation and heats the air during the heating operation.

A frame 5 is arranged inside the indoor unit 1 so as to face the rear of the heat exchanger 4,
With the heat exchanger 4, an air passage R for guiding the air (cool air or warm air) after heat exchange to the air outlet 6 is formed by a partition. Reference numeral 7 denotes a wind direction changing plate that changes the blowing angle of air in the left-right direction, and is provided at the air outlet 6 so as to be rotatable in the left-right direction. Reference numerals 8a and 8b denote two flaps for changing the vertical outlet angle of air, and are provided on the leeward side of the airflow direction changing plate 7 of the air outlet 6 so as to be vertically rotatable.

Here, the flaps 8a and 8b are rotated upward so as to blow out cool air forward during cooling operation, and have a substantially horizontal orientation, and blow out warm air downward during heating operation, as shown in FIG. It is rotated downward to be in a substantially vertical state.

[0006]

By the way, in such a conventional air conditioner, the heat exchanger 4 is operated during the cooling operation.
When the cool air cooled by the air outlet 6 is blown out from the air outlet 6, the air around the air outlet 6 may be cooled by the blown out cool air and moisture may adhere to the flaps 8a and 8b. is there. When the moisture adheres in this way, the moisture grows to become dew, and this dew eventually becomes a water drop, which drops from the flaps 8a and 8b and wets the floor surface.

On the other hand, when the warm air is blown downward during the heating operation, if the vicinity of the top surface 6a of the air outlet 6 is not blocked, a part of the warm air is blown forward and circulates to the air suction port 2. There was a problem that heating efficiency was reduced due to a short circuit.

[0008] Therefore, an object of the present invention is to solve the above problems and to provide an air conditioner in which condensed water does not drip or cause an air short circuit.

[0009]

According to a first aspect of the present invention, an air inlet is provided on the front surface, an air outlet is provided below the air inlet, and the air outlet is provided along the longitudinal direction of the air outlet. In an air conditioner having a flap that is rotatably supported at its both ends in a short-side direction and that changes the wind direction of the air-conditioned air discharged from the air outlet, the cross-section of the flap in the short-side direction is substantially The convex side surface of the flap is arranged downward, and the convex side surface of the flap is formed with a convex ridge or a concave groove along the longitudinal direction. Is characterized by.

According to a second aspect of the present invention, an air inlet is provided on the front side, an air outlet is provided below the air inlet, the air outlet is provided along the longitudinal direction of the air outlet, and both ends are short-sided. In an air conditioner equipped with a flap that is pivotally supported in a direction, and that changes the wind direction of the air-conditioned air discharged from the air outlet, the flap has an auxiliary flap that is shorter than the flap in the lateral direction. It is characterized by being fixed by a side plate at a position that is parallel and obliquely rearwardly shifted when viewed from the lateral direction of the flap.

According to the third aspect of the present invention, an air inlet is provided on the front side, an air outlet is provided below the air inlet, the air outlet is provided along the longitudinal direction of the air outlet, and both ends are short-sided. In an air conditioner that is rotatably supported in a direction and has a flap that changes the wind direction of the air-conditioned air discharged from the air outlet, the cross section of the flap is formed in a substantially V shape. The convex side surface of the flap is arranged facing downward, and a convex ridge or a groove is formed along the longitudinal direction on the convex side surface of the flap, while the flap has the above-mentioned structure. It is characterized in that an auxiliary flap having a width shorter than the flap in the lateral direction is fixed by a side plate at a position parallel to and obliquely rearward of the flap when viewed from the lateral direction of the flap.

[0012]

According to the structure of the first aspect, the flap is formed so that the cross section in the lateral direction thereof has a substantially V shape, and the convex side surface of the flap is arranged so as to face downward. The air-conditioned air can sufficiently flow also on the convex side surface of the flap, and the dew condensation during the cooling operation is suppressed. At the same time, since a convex ridge or a groove is formed along the lengthwise direction on the convex side surface of the flap, even if condensation forms water droplets, these water droplets are formed on the convex side surface of the flap. It is possible to prevent the droplets from being dispersed by the raised ridges or the concave grooves and growing into large water droplets.

According to the second aspect of the present invention, the auxiliary flap having a width shorter than the flap in the lateral direction is fixed to the flap at a position parallel and obliquely rearward when viewed from the lateral direction of the flap. , When the flap is rotated downward, the auxiliary flap formed at the rear end of the flap closes the top of the air outlet to prevent the conditioned air from being blown forward from the upper portion of the air outlet, and during the heating operation. Prevent air short circuit.

According to the third aspect of the present invention, the flap is formed so that its cross section in the lateral direction has a substantially V shape, and the convex side surface of the flap is arranged so as to face downward. The air-conditioned air can sufficiently flow also on the convex side surface of the flap, and the dew condensation during the cooling operation is suppressed.
At the same time, along the longitudinal direction on the convex surface of the flap,
Since a convex ridge or a concave groove is formed, even if condensation forms water droplets, these water droplets are dispersed by the convex ridges or concave grooves formed on the convex side surface of the flap, resulting in a large size. It is possible to prevent the droplets from growing up and dropping. Further, since the auxiliary flap having a width shorter than the flap in the lateral direction is fixed to the flap by a side plate at a position parallel and obliquely rearward when viewed from the lateral direction of the flap, the flap is rotated downward. At this time, the auxiliary flap formed at the rear end of the flap closes the top of the air outlet to prevent the conditioned air from being blown forward from the upper portion of the air outlet, thereby preventing an air short circuit during the heating operation.

[0015]

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

FIG. 1 is a side sectional view of an indoor unit of an air conditioner which is an example of an air conditioner according to an embodiment of the present invention. 7, the same reference numerals as those in FIG. 7 indicate the same or corresponding parts.

In the figure, 9 is a wind direction changing member,
The air outlet 6 extends horizontally in the longitudinal direction and is provided so as to be rotatable in the vertical direction, which is the lateral direction. 9a is a side plate of the wind direction changing member 9, and this side plate 9a
A rotary shaft 9b is provided on the shaft. This wind direction changing member 9
As shown in FIG. 2 or FIG. 5, the auxiliary flap 10 is fixed to the main flap 11 by the side plate 9a at a position parallel to and obliquely rearwardly shifted. The air direction changing member 9 provided with the two flaps 10 and 11 is attached to the air outlet 6
It is possible to change the blowing angle of the air-conditioned air by rotatably providing the air conditioning air.

As described above, by attaching the wind direction changing member 9 integrally including the two flaps 10 and 11 to the air outlet 6 of the indoor unit 1 via the rotating shaft 9b, the two air blowers can be separated from the conventional one. The structure can be simplified as compared with the case where the flaps 8a and 8b are rotatably held.

On the other hand, the main flap 1 of the wind direction changing member 9
As shown in FIG. 3, a large number of drip-preventing recessed grooves 12 are formed in parallel on the surface of No. 1 in the longitudinal direction. Here, when the cool air is blown from the air outlet 6 during the cooling operation, the drip-preventing concave groove 12 cools the air in the room to condense the surface of the main flap 11 to prevent the growth of water droplets. Even if they grow into water drops, they are dispersed and make it difficult to drop when they run down.

In this embodiment, the drip-preventing grooves 12 are formed at intervals of 2 mm as shown in FIG. 4, and have a depth width of 0.6 mm and a depth of 0.3 mm. It is shaped so that the surface tension collapses,
By forming the drip-preventing concave groove 12 in such a shape, water is dispersed. That is, during the cooling operation, the water attached to the main flap 11 spreads inside the drip-preventing groove 12, but this water is evaporated by the dry cold air flowing on the surface.

Further, as shown in FIG. 5, the main flap 11 is formed so that its cross section in the lateral direction has a V shape, and when it is rotated to a horizontal angular position, the convex side surface 11a of the flap is downward. It is arranged to face. This facilitates the conditioned air to flow along the convex surface. That is, even when the flap is set to the horizontal angular position during the cooling operation, the blown air is more likely to flow on the convex side surface 11a of the main flap 11 than in the case where the main flap 11 is flat.
Contributes to the prevention of condensation.

Moisture easily adheres to the central portion of the convex surface 11a in the lateral direction due to the swirl flow generated by the room air and the cold air blown out. Is formed to be slightly wider than the concave groove 12 for preventing dripping. In addition, in the present embodiment, an example in which the concave groove 12 for preventing dripping is formed on the convex side surface 11a of the main flap 11 is described, but a convex ridge may be formed instead of the concave ridge groove. .

On the other hand, the wind direction changing member 9 includes the main flap 11
The auxiliary flap 10 is fixed to the side plate 9a at a position parallel to and obliquely rearwardly displaced. Therefore, when the wind direction changing member 9 is rotated at a vertical angle, as shown in FIG. 6, the auxiliary flap 10 of the wind direction changing member 9 closes the vicinity of the top of the air outlet 6 and closes the air inlet 2. The forward blowout of air from is blocked. As a result, the air outlet 6
There is no air flow that circulates from the air suction port 2 to prevent an air short circuit.

During the cooling operation, the air outlet 6 is set by setting the wind direction changing member 9 in the horizontal angular position as shown in FIG.
Cold air blows out from the front as shown by the arrow. At this time, the cold air flows on the concave surface of the main flap 11 and at the same time flows along the convex surface 11a. As a result, the warm air in the room is allowed to reach the convex surface 11 of the main flap 11.
No contact with a and dew condensation occurs. Even if warm air in the room comes into contact with the convex side surface 11a of the main flap 11 to cause dew condensation, as the cooling operation progresses, the dry cool air discharged from the air outlets 6 causes the convex side surface of the main flap 11 to move. Water attached to 11a evaporates. Further, even if dew condensation proceeds for some reason and grows into water droplets, the moisture spreads inside the ditch-preventing groove 12 and then the dry cold air flows along the convex side surface 11a. Does not evaporate and drip to the floor.

During the heating operation, as shown in FIG. 6, the wind direction changing member 9 is set at a vertical angle position, and warm air blown by the fan 3 is applied to the main flap 11 and the auxiliary flap 10 of the wind direction changing member 9, Indoor unit 1 as shown by the arrow
Blow out below. At this time, the auxiliary flap 10 comes into close proximity or contact with the vicinity of the top portion 6a of the air outlet 6, and the side of the air outlet 6 near the air inlet 2 is blocked and warm air is not blown out forward. . As a result, the phenomenon of warm air flowing from the air outlet 6 to the air inlet 2 is eliminated, an air short circuit is prevented, and efficient heating operation becomes possible.

[0026]

According to the first aspect of the present invention, the flap is formed so that its lateral cross section is substantially V-shaped, and the convex surface of the flap is arranged so as to face downward. The conditioned air can sufficiently flow on the convex surface of the flap, and the dew condensation during the cooling operation is suppressed. at the same time,
Since a convex ridge or a groove is formed along the longitudinal direction on the convex side surface of the flap, even if water droplets are formed due to dew condensation, this water droplet is formed on the convex side surface of the flap. It is possible to prevent the particles from being dispersed by the ridges or the ridges and growing into large water droplets and dropping.

According to the second aspect of the present invention, an auxiliary flap having a width shorter than the flap in the lateral direction is fixed to the flap by a side plate at a position parallel to and obliquely rearward as viewed from the lateral direction of the flap. Therefore, when the flap is rotated downward, the auxiliary flap formed at the rear end of the flap closes the top of the air outlet to prevent the conditioned air from being blown forward from the upper portion of the air outlet, and the heating operation is performed. To prevent air short circuit during operation.

According to the third aspect of the present invention, the flap is formed so that its lateral cross section is substantially V-shaped, and the convex side surface of the flap is arranged so that it faces downward. Can sufficiently flow on the convex surface of the flap, and the dew condensation during the cooling operation can be suppressed. At the same time, since a convex ridge or a groove is formed along the lengthwise direction on the convex side surface of the flap, even if condensation forms water droplets, these water droplets are formed on the convex side surface of the flap. It is possible to prevent the droplets from being dispersed by the raised ridges or the concave grooves and growing into large water droplets. Further, the auxiliary flap having a width shorter than the flap in the lateral direction is fixed to the flap by the side plate at a position parallel and obliquely rearward when viewed from the lateral direction of the flap, so the flap is rotated downward. At this time, the auxiliary flap formed at the rear end of the flap closes the top of the air outlet to prevent the conditioned air from being blown forward from the upper portion of the air outlet, thereby preventing an air short circuit during the heating operation.

[0029]

[Brief description of drawings]

FIG. 1 is a side sectional view of an indoor unit of an air conditioner that is an example of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view of an airflow direction changing member provided at an air outlet of the indoor unit.

FIG. 3 is a convex side surface view of a main flap of the wind direction changing member.

FIG. 4 is a partial side sectional view of a drip-preventing concave groove formed on the convex side surface of the main flap of the wind direction changing member.

FIG. 5 is a side sectional view of the wind direction changing member.

FIG. 6 is a side sectional view of the indoor unit showing a state in which the wind direction changing member is rotated to a vertical angle position.

FIG. 7 is a side sectional view of an indoor unit of a conventional air conditioner.

[Explanation of symbols]

 1 Indoor Unit 4 Heat Exchanger 6 Air Outlet 8a, 8b, Flap 9 Wind Direction Change Member 10 Auxiliary Flap 11 Main Flap 12 Drip Prevention Groove

Claims (3)

[Claims] 1. An air inlet is provided on the front side, an air outlet is provided below the air inlet, the air outlet is arranged along the longitudinal direction of the air outlet, and both ends thereof are rotatable in the lateral direction. In an air conditioner provided with a flap for changing the wind direction of the air-conditioned air discharged from the air outlet, the cross section of the flap in a lateral direction is formed in a substantially V shape,
The air conditioner is characterized in that the convex side surface of the flap is arranged facing downward, and the convex side surface of the flap is formed with a convex ridge or a concave groove along the longitudinal direction. . 2. An air inlet is provided on the front side, an air outlet is provided below the air inlet, the air outlet is provided along the longitudinal direction of the air outlet, and both ends thereof are rotatable in the lateral direction. In an air conditioner equipped with a flap that is axially supported by the air blower and changes the wind direction of the air-conditioned air discharged from the air outlet, the flap has an auxiliary flap whose width in the lateral direction is shorter than that of the flap. An air conditioner characterized by being fixed by a side plate at a position parallel to and obliquely rearward when viewed from the direction. 3. An air inlet is provided on the front side, an air outlet is provided below the air inlet, the air outlet is provided along the longitudinal direction of the air outlet, and both ends thereof are rotatable in the lateral direction. In an air conditioner equipped with a flap that is axially supported by and that changes the wind direction of the air-conditioned air that is discharged from the air outlet, a cross section in the lateral direction of the flap is formed in a substantially V shape, and While the convex side surface is arranged facing downward, along the longitudinal direction on the convex side surface of the flap, a convex ridge or a groove groove is formed, while the flap is in a lateral direction than the flap. An air conditioner in which an auxiliary flap having a short width is fixed by a side plate at a position that is parallel and obliquely rearward when viewed from the lateral direction of the flap.