JPS61243248A - Airflow direction deflecting device for air-conditioning machine - Google Patents

Abstract

PURPOSE:To reduce the loss of airflow amount and permit to deflect the airflow to the left and right largely by providing a plurality of left and right airflow direction deflecting vanes formed so as to have a curvature. CONSTITUTION:The titled device is formed by attaching a plurality of arced left and right airflow direction deflecting vanes 9, formed by curved sections, pivotably to a blow-off port 3a in a blow-off grille 3 so that at least one ends thereof are incorporated into the blow-off port 3a. As a result, in case the airflow, sent from a fan (upstream side of the airflow), hits against the right and left airflow direction deflecting vanes 9 in the blow-off port 3a to deflect them forcibly to right and left, the resistance thereof is small and the airflow flows toward the downstream side thereof along the right and left walls of the blow-off grill 3 or the left and right airflow direction direction deflecting vanes 9, therefore, the deterioration of airflow amount may be improved remarkably.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a wind direction changing device for an air conditioner.

2. Description of the Related Art Conventionally, this type of air conditioner has been constructed as shown in FIG.

In the figure, reference numeral 1 denotes a frame main body of an indoor unit, to which a front grill 2 having an inlet 2a and an outlet grill 3 having an outlet 3a are attached. Reference numeral 4 denotes a ventilation passage formed between the underframe main body 1 and the front grille 2;
a and the air outlet 3a, and a heat exchanger 5 and a blower 6 constituting a refrigeration cycle are disposed therein. Reference numeral 7 denotes a vertical wind direction changing blade having both ends incorporated in the side wall of the outlet grille 3, and 8 a plurality of left and right wind direction changing blades having at least one end incorporated inside the outlet grille 3, also shown in FIG. It is formed from a flat plate.

Problems to be Solved by the Invention However, with such a structure, when the air passing through the outlet 3a is deflected to the left or right, the air volume decreases significantly, and due to the refrigeration cycle, if the indoor air volume decreases, the capacity decreases. The problem was that the deflection angle could not be increased very much because the input power would drop and the input power would rise.

As shown in Figure 3, from the windward side, the outlet grill 3
This is because the wind that has passed through the inner air outlet 3a hits the flat left/right wind direction changing blade 8 and is forcibly deflected to the left and right, which increases resistance and reduces the air volume.

Therefore, even if the wind is largely deflected to the left or right, the present invention prevents the wind from hitting the left and right wind direction changing blades 8 and decreasing the amount of decrease, thereby making it possible to increase the deflection angle.

A means for solving the problems and a further means for solving the above problems is to attach a plurality of curved left and right wind direction changing vanes, at least one end of which is incorporated inside the above-mentioned blow-off grill.

For production The effect of this technical means is as follows.

That is, when deflecting the wind by bending the left and right wind direction changing blades, in the present invention, the wind passing through the outlet attaches to the left and right wind direction changing blades, thereby reducing the loss of air volume and making it possible to largely deflect the wind to the left and right. It is.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIG. 1, at least one end is incorporated into the air outlet 3a in the air outlet grille a, and a plurality of arcuate left and right wind direction changing blades 9 formed by curved portions are rotatably attached. In this embodiment, the left and right end walls 3b of the outlet grille a are formed with curved portions that widen left and right in accordance with the direction of the curved portions of the left and right wind direction changing blades 9.

In order to specifically demonstrate the effects of the present invention, we conducted an experiment to investigate the relationship between the deflection angle of the wind and the rate of decrease in air volume in the conventional example and the example, and the results are shown in FIG.

As is clear from this result, the wind sent from the blower (on the windward side) hits the left and right wind direction changing blades 9 within the outlet 3a, and even when it is forcibly deflected to the left and right, the resistance is small.
It adheres to the left and right wind direction changing blades 9 and the left and right walls 3b of the outlet grille 3, and flows to the leeward side, thereby greatly reducing the reduction in air volume.

Effects of the Invention As described above, if the left and right wind direction deflecting blades of the present invention are used,
Even when the wind is largely deflected to the left or right, the reduction in air volume can be reduced, and accordingly, the angle of deflection of the wind to the left or right, which has hitherto been limited in air conditioners, can be significantly improved.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part of an embodiment of the present invention, FIGS. 2 and 3 are longitudinal sectional views and cross-sectional views of main parts of a conventional air conditioner, and FIG. 4 is a conventional example and the present invention. FIG. 5 is a characteristic diagram showing the deflection angle and air volume reduction rate of the embodiment of the present invention, and FIG. 5 is a perspective view of an air conditioner equipped with the embodiment of the present invention.・ 1...Underframe body, 2...Front grill,
3...Blowout grill, 5...Heat exchanger,
6... Blower, 7... Vertical wind direction changing blade, 8, 9... Left and right wind direction changing blade. Name of agent: Patent attorney Toshio Nakao and 1 other person/-
--Downward wind side of the main body of the joint frame. (J-m-Fukiage grill y trigram (2)

Claims (1)

[Claims] It comprises an underframe body, a blower installed in the underframe body, and an air outlet grille attached to the underframe body, and in the air outlet grille, a left and right wind direction change blade curved in an arch shape is rotatable. A wind direction changing device for an air conditioner with multiple installed.