Air conditioner

Abstract

The present invention relates to an air conditioner. The air conditioner provided by the invention has the advantage that the exterior projection or concave part hardly exists when not being used and the environment of indoor decoration is not disturbed. Furthermore the direction of blowout air current and the direction of impression which is generated when the upper and lower wind direction boards are seen are same, and no baffle is generated. In the separated wall-type air conditioner which can use a plurality of upper and lower wind direction boards to approximately close the blowing outlet, an enlarging part of the blowing-out air passage which enlarges from the downstream side to the upper part, and an upper wind direction board of the upper and lower wind direction boards which is positioned at the front part of enlarging part and has a central part with convex wind direction surfaces at the surface and back surface and a hollow inner part are provided. The average curvature of wind direction surface which becomes the external surface when the upper wind direction board of the upper and lower wind direction boards is closed is larger than the average curvature of other wind direction surfaces of the upper and lower wind direction boards. The wind direction surface becomes the lower surface when the upper wind direction board of the upper and lower wind direction boards is set in the horizontal direction and furthermore becomes the back surface when the upper wind direction board of the upper and lower wind direction boards is downward.

Description

technical field [0001] The invention relates to an air conditioner, in particular to an air conditioner with improved upper and lower wind direction plates. Background technique [0002] Heat pump air conditioners are widely used as air conditioners, and various attempts have been made to make them more comfortable and easier to use. One of them is the shape of the vertical louvers. [0003] Among heat pump air conditioners, the separate wall-mounted type is widely used because of its harmony with the house, design, and low noise. In this case, since the indoor unit is installed on the upper part of the indoor wall, the up and down louvers are directed downward as much as possible during the heating operation so that the warm air reaches the vicinity of the floor as much as possible; Circulate the cool air widely in the room. [0004] Although heat pump air conditioners are being miniaturized every year, there are also performance problems, and the speed of miniaturizatio...

AI Technical Summary

Problems solved by technology

[0014] Although Patent Document 2 describes the case where the air flow is blown downward, it does not mention the case where the air flow is blown upward.

Moreover, since there are three wind direction boards to narrow the air passage, especially in the case of using thick blade-shaped wind direction boards, the space between the upper and lower wind direction boards and the upper wall of the blowing air duct becomes narrow during air-conditioning operation, and the wind speed increases. Increase the ventilation resistance of this part and increase the noise

[0015] Although Patent Document 3 describes the case where the airflow is blown upward or horizontally, it does not mention the case where the direction of the airflow is downward as in heating operation.

And, of course, there is no mention of the warping direction of the louver when the airflow is blown downward.

[0016] In Patent Document 4, since there is a stepped portion on the wind direction plate, even if the air outlet is closed during a stop, the stepped portion is conspicuous, impairing the appearance when stopped

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