JPS6233252A - Ventilation device of air conditioner - Google Patents

Abstract

PURPOSE:To reduce the ventilation resistance and the air volume loss by providing in a discharge grill an up and down air direction changing vane which is rotatable and has the sectional shape curved in a concave form and an upward discharge vane aligned in the same direction as the tangent of the inner wall of an air outlet side vane at a maximum upward discharge angle. CONSTITUTION:In the upward discharge state, air induced by a blower 13 via a heat exchanger 12, is rotated upwardly and gradually curved upwardly along the curvature of the inner wall of the up and down air flow direction changing vane 16 formed in a concave curved sectional shape. Further the air passes through an upward discharge vane 18 disposed in parallel (shown by one-dot chain line (y)) to the direction of the tangent (x) of the inner wall on the air outlet side of the up and down air flow direction changing vane 16 to generate the lowest resistance, and fed into a residential space and the like as a cool air flow. Then, in the state where air is discharged horizontally, it is possible to feed a cool air flow into the residential space through a horizontal discharge vane 17.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an air outlet grill for an air conditioner.

Conventional technology Generally, when an air conditioner is operated for cooling, the cold air blown out tends to stay on the floor of the living space, and in order to prevent the cold air from directly hitting the body of the occupant, the upper and lower blades of the outlet grill are The air conditioner is used with the setting set upward and blowing cold air upward.

An example of the conventional air conditioner mentioned above will be described below with reference to the drawings.

FIG. 3 is a sectional view showing an example of a conventional air conditioner.
1 is an air conditioner main body, 2 is a heat exchanger, 3 is a blower, 4 is a blower casing, and 5 is an upper and lower blade of a blowout grill.

The operation of the air conditioner configured as above will be explained below.

First, the air sucked in by the blower 3 through the blower casing 4 has its heat absorbed by the heat exchanger 2, and then is blown upward as cold air by the upper and lower blades 5 of the blow-off grille. At this time, the cold air can be blown out horizontally by setting the upper and lower blades 5 of the blowing grill horizontally.

In FIG. 3, arrow A indicates an upward blowing state, and arrow B indicates a horizontal blowing state. Regarding the above-mentioned conventional air conditioner, for example, see Utility Model Application Publication No. 57-195039. 0 Problems to be Solved by the Invention However, in the above configuration, if the upper and lower blades of the blow-off grille are turned extremely upward, the ventilation paper and resistance will become large, leading to a decrease in air volume, and the upper and lower blades will This has the drawback of increasing air turbulence near the blades and increasing noise.

In view of the above-mentioned problems, the present invention provides a blower device for an air conditioner that can reduce ventilation resistance during upward blowing and realize smooth air flow.

Means for Solving the Problems In order to solve the above problems, the air conditioner blower device of the present invention includes an air conditioner main body, an air blower, and a wind circuit having a heat exchanger. Equipped with a blowout grill,
lti The blowout grille includes a rotatable vertical wind direction changing blade having a cross-sectional shape concavely curved upward, a horizontal blowing blade extending coaxially with the vertical wind direction changing blade, and a horizontal blowing blade extending coaxially with the vertical wind direction changing blade; It has a structure in which an upper blowing blade is arranged in the same direction as the tangent to the inner wall of the air outlet side blade of the wind direction changing blade and extends in the same axial direction as the bottom wind direction changing blade.

According to the above-described structure, the present invention examines the state of the maximum upper blowing angle, and the air blown out along the curved surface of the blower casing of the air conditioner main body is first rotated upward and curved into a concave shape. The wind direction changing blade is gradually bent upward along the curvature of the inner wall of the wind direction changing blade forming a cross-sectional shape, and is further arranged in the same direction as the tangent to the air outlet side inner wall of the wind direction changing blade in a form with the least resistance. Air is supplied as cold air to the living space through the upper blowing vane, thereby realizing a ventilation form with low ventilation resistance and little loss of air volume.

EXAMPLE Hereinafter, a blower device for an air conditioner according to an example of the present invention will be described with reference to the drawings.

FIG. 2 shows a sectional view of an air conditioner according to an embodiment of the present invention, in which 11 is the air conditioner main body, 12 is a heat exchanger,
13 is a blower, 14 is a blower casing, 15 is a blowout grill, 16 is a vertical wind direction changing blade, 17 is a horizontal blowout blade,
18 is an upper blowing blade. Further, FIG. 1 is an enlarged view of a main part of part A in FIG. 1 showing a sectional view of the blower device of the air conditioner.

The operation of the air blower for the air conditioner configured as described above will be described below with reference to FIGS. 1 and 2.

First, in the top blowing state, the air sucked through the heat exchanger 12 by the blower 13 is first rotated upward and is set at the maximum blowing angle, forming a concavely curved cross-sectional shape. It is gradually bent upward along the curvature of the inner wall of the changing blade 16, and further parallel to the tangent line X of the inner wall on the air outlet side of the vertical air direction changing blade 16 (
The air passes through the upper blowing vanes 18 arranged in a form with the least resistance (indicated by a dashed line y) and is supplied as cold air to a residential space or the like.

Next, in the horizontal blowing state, by rotating the vertical wind direction changing blade 16 to make it horizontal, the horizontal blowing blade 1
7, the cold air can be supplied to the living space.

Effects of the Invention As described above, according to the present invention, an air outlet grill is provided on the upper part of the air conditioner main body, and the air outlet grill is further provided with a rotatable vertical wind direction changing blade having a concavely curved cross section, and a By providing an upper blower blade that is aligned in the same direction as the tangent to the inner wall of the air outlet side blade of the vertical air direction changing blade at the upper blower angle, the ventilation resistance at the maximum upper blower angle can be reduced, and as a result, the blower has less air volume loss. can be realized.

[Brief explanation of the drawing]

FIG. 1 is an enlarged cross-sectional view of essential parts of a blower device of an air conditioner according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of the same air conditioner, and FIG. 3 is a cross-sectional view of a conventional air conditioner. It is. 11...Air conditioner body, 12...Heat exchanger, 13...Blower, 15...Blowout grill, 16...Top and bottom Wind direction changing blade, 17.
...Horizontal blowing blade, 18...Top blowing blade. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure U-11 Air vII Hatsuiso Main Body/Z-1: Gengap each 13-11 Tsugami 15-m-Bukyu Grill/6--Fu-Shun and Upper Mugisara Haju /7---Tokosu Girincho lδ---Ichikaboj! A feather east

Claims (1)

[Claims] An air conditioner including an air conditioner main body, a blower, and a wind circuit having a heat exchanger is provided with an air outlet grille at the top thereof, and the air conditioner further has a rotatable cross-sectional shape concavely curved upward. a vertical wind direction changing blade; a horizontal blowing blade extending coaxially with the vertical wind direction changing blade; A blower device for an air conditioner equipped with a modified blade and an upper blowing blade extending coaxially.