JP2003090593A - Lateral diffuser of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lateral diffuser of air conditioner in which strength is ensured in the vicinity of the rotary shaft and supply air can be directed in the correct direction while preventing generation of a separated turbulence and reducing noise. SOLUTION: In an air conditioner 1 where a heat exchanger 5 and an air supply fan 6 are provided in an air channel 4 connecting the air inlet 2 and the air outlet 3, and a lateral diffuser 7 is provided on the upper wall 3a at the air outlet while being supported rotatably through a rotary shaft 7a, longitudinal grooves 7c are made in the opposite side faces of the lateral diffuser on the windward side of the rotary shaft. Consequently, strength is ensured in the vicinity of the rotary shaft and supply air can be directed in the correct direction while preventing generation of a separated turbulence and reducing noise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a left / right airflow direction vane which is provided at an air outlet of an air conditioner and deflects the airflow to the left and right.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIG. 4, an air conditioner 1 has a suction port 2 in the upper front and a blow port 3 in the lower front.
A heat exchanger 5 and a blower fan 6 are arranged in an air passage 4 connecting with the air passage 4, and a left / right airflow direction plate 7 and a vertical airflow direction plate 8 are arranged in the air outlet 3. The left and right wind direction plate 7 has a rotating shaft 7a.
Is rotatably supported by a shaft hole 3b provided in the upper wall 3a of the blowout port 3, and can be rotated right and left by rotationally driving the rotating shaft 7a by a motor (not shown). ing. Further, as shown in FIG. 5, a vertical groove 7b is formed on the side surface of the left / right airflow direction plate 7 so as to be substantially perpendicular to the flow direction of the wind, and the angle of the left / right airflow direction plate 7 is changed to change the airflow direction. It is possible to prevent turbulent separation that occurs when the above occurs and reduce noise. However, the vertical groove 7b is conventionally
Since it is provided on the entire side surface, if the rotation shaft 7a is rotated to change the angle of the left and right airflow direction vanes 7, the strength is a problem because the vertical groove 7b bends at the thin portion. There was a problem that the blowing air could not be directed in the right direction.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and not only can secure the strength in the vicinity of the rotating shaft to direct the blowing air in the correct direction, but also prevent separation turbulence. An object of the present invention is to provide left and right wind direction plates of an air conditioner that can reduce noise.

[0004]

In order to solve the above problems, the present invention provides a heat exchanger and a blower fan in an air passage connecting an inlet and an outlet, and the outlet has the outlet. In an air conditioner in which left and right wind direction plates rotatably supported by a rotation shaft are provided on the upper wall or the lower wall of the air conditioner, both side surfaces on the windward side of the rotation axis of the left and right wind direction plates are vertically moved. The left and right wind vanes of an air conditioner with vertical grooves in the direction.

The vertical grooves are left and right airflow direction vanes of an air conditioner formed by being shifted by ½ pitch from each other.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The left and right wind vanes of an air conditioner according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side sectional view of an essential part showing an embodiment of the left and right wind direction plates of an air conditioner according to the present invention, and FIG. 2 is an enlarged view of the essential part. As shown in FIG. 1, in an air passage 4 connecting an upper front suction port 2 and a lower front air outlet 3 of an air conditioner 1 including a base 10 and a front panel attached to the front surface of the base 10. A heat exchanger 5 formed in a substantially inverted V shape, and a blower fan 6 disposed on the leeward side of the heat exchanger 5, and a left and right wind direction plate 7 for deflecting the blown air to the outlet 3 to the left and right. A vertical wind direction plate 8 that deflects the blown air up and down is provided. Further, a diffuser 9 that rotates up and down in association with the vertical airflow direction plate 8 is provided on the base 10 below the air outlet 3. The left and right wind direction plates 7
Has its rotation shaft 7a rotatably supported in a shaft hole 3b provided in the upper wall 3a of the blow-out port 3, and the rotation shaft 7a.
Is rotated by a motor (not shown) so as to be rotated right and left. Further, vertical grooves 7c that are substantially perpendicular to the flow of wind are provided on the front and back sides of the side surface on the windward side of the rotary shaft 7a of the left and right wind direction plates 7. This vertical groove 7c
The side surfaces are formed such that the front and back positions thereof are displaced from each other by about 1/2 pitch, and the thin portions are not so continuous that strength can be maintained. Further, the vertical groove 7c is not arranged around the rotary shaft 7a, so that the rotary shaft 7a
When a is rotated by a motor (not shown), the left and right wind direction plates 7 are not twisted or bent, but are rotated in the correct direction.

The operation of the above arrangement will be described below. FIG. 3 is an explanatory diagram for explaining the operation. When the rotation shaft 7a of the left / right airflow direction plate 7 is turned by a motor (not shown), the angle of the left / right airflow direction plate 7 changes, and the direction of the blown air can be changed. FIG. 3-b shows the case where there is no vertical groove 7c, and in this case, when the blown air passes through the side surfaces of the left and right airflow direction vanes 7, a separation turbulence due to a large vortex is generated, resulting in a large noise. Further, the right and left wind direction plates 7 are gradually deflected in a direction away from each other and are not deflected in the correct direction. On the other hand, in the present invention, as shown in FIG. 3A, when the blown air passes through the vertical groove 7c on the side surface of the left / right airflow direction plate 7, a fine vortex is formed near the vertical groove 7c,
Since these fine vortices are also made to flow on the leeward side of the left and right wind direction plates 7, the air passing outside the fine vortices is left and right
Flow in parallel with each other, are efficiently deflected in the direction of the left and right wind direction plates 7, and noise is hardly generated.

[0008]

As described above, according to the left and right wind vanes of the air conditioner according to the present invention, a heat exchanger and a blower fan are provided in the air passage connecting the suction port and the air outlet, and the air outlet is provided. In an air conditioner in which a left and right wind direction plate rotatably supported by a rotation shaft is disposed on an upper wall or a lower wall of the air outlet, the air conditioner located on the windward side of the rotation axis of the left and right wind direction plates. Since vertical grooves are provided on both sides in the vertical direction, it is possible not only to secure the strength in the vicinity of the rotation axis and direct the blowout air in the correct direction, but also to prevent separation turbulence and reduce noise. it can.

[Brief description of drawings]

FIG. 1 is a side sectional view of an essential part showing an embodiment of left and right wind direction plates of an air conditioner according to the present invention.

FIG. 2 is an enlarged view of an essential part showing an embodiment of the left and right wind direction plates of the air conditioner according to the present invention.

FIG. 3 is an explanatory view illustrating the operation of the left and right wind direction plates of the air conditioner according to the present invention.

FIG. 4 is a side sectional view of a main part showing left and right airflow direction vanes of a conventional air conditioner.

FIG. 5 is an enlarged view of a main part showing left and right airflow direction vanes of a conventional air conditioner.

[Explanation of symbols]

1 air conditioner 2 Suction port 3 outlet 3a Upper wall 3b shaft hole 4 air passages 5 heat exchanger 6 Blower fan 7 Left and right wind direction plate 7a Rotation axis 7c vertical groove

Claims (2)

[Claims] 1. A heat exchanger and a blower fan are provided in an air passage connecting an inlet and an outlet, and the outlet is rotatably attached to an upper wall or a lower wall of the outlet by a rotating shaft. An air conditioner comprising axially supported left and right airflow direction vanes, characterized in that vertical grooves are provided in the up-down direction on both side surfaces on the windward side of the rotation axis of the left and right airflow direction vanes. Left and right wind direction plate. 2. The left and right wind vanes of the air conditioner according to claim 1, wherein the vertical grooves are formed so as to be offset from each other by ½ pitch.