| 摘要 |
An air conditioning indoor unit includes a casing having an air outlet, a horizontal blade that changes an up and down direction flow of outlet air, a Coanda blade to change the outlet air to a Coanda airflow along an undersurface of the Coanda blade, and a control unit. The control unit adjusts a relative angle between the Coanda blade and the horizontal blade to selectively use either of a first airflow state and a second airflow state. In the first airflow state, the control unit adjusts the relative angle to a predetermined angle in a first angular range to produce the Coanda airflow on substantially an entire region of the undersurface of the Coanda blade. In the second airflow state, the control unit adjusts the relative angle to a predetermined angle in a second angular range larger than the first angular range to not produce the Coanda airflow. |
| 主权项 |
1. An air conditioning indoor unit comprising:
a casing having an air outlet formed therein from which outlet air is blown out, and the casing having a front panel defining a front portion of the air conditioning indoor unit; a horizontal blade arranged and configured to change an up and down direction flow of the outlet air by a regulating surface; a Coanda blade that utilizes the Coanda effect, which is a phenomenon in which the outlet air tends to flow in. a direction along an undersurface positioned in a direction out of and different from a flow direction of the outlet air, to change the outlet air between the undersurface of the Coanda blade and the regulating surface of the horizontal blade, of which air direction has been changed by the regulating surface of the horizontal blade, to a Coanda airflow along the undersurface of the Coanda blade; and a control unit configured to control a motor coupled to the Coanda blade and a motor coupled to the horizontal blade so as to adjust a relative angle between the Coanda blade and the horizontal blade in such a way as to selectively position the blades according to selection of the airflow states, the airflow states including
a first airflow state, in which the control unit adjusts the relative angle to a predetermined angle in a first angular range to produce the Coanda airflow on substantially an entire region of the undersurface of the Coanda blade, anda second airflow state, in which the control unit adjusts the relative angle to a predetermined angle in a second angular range larger than the first angular range to not produce the Coanda airflow, a height position of a lower end portion of the Coanda blade becoming lower as an upper end portion of the Coanda blade moves away from the front panel of the casing. |
