JPS6210555A - Air flow deflection device for air conditioner - Google Patents

Abstract

PURPOSE:To retain an ample vertical deflection performance without deteriorating the fan performance in the normal position by selectively moving the pivot of the vertical deflection plate between the two optimum positions of the normal position and air flow deflecting position. CONSTITUTION:When the vertical deflection plate 1 is set in the position A with the downward inclination of 10 deg. at which the maximum air flow capacity is available, the reduction of the fan performance can be minimized. In the case where the air conditioner is designed to deflect the air flow up to 70 deg. downward, the position B is the position where the air flow is deflected 70 deg. and the reduction of the fan performance is minimized. The front end of the vertical deflection plate 1 at the respective positions A, B are designated as 2a, 2b, and the rear end 3a, 3b. Lines that normally intersect and equally divide line segments which connect the ends 2a and 3a, and 2b and 3b are described, and the intersection of the said lines is designated as 0. When the vertical deflection plate 1 is rotated with the point 0 as the rotational axis, it can be movable between the positions A and B. The length of the support 3 and the position of the rotational axis 4 are so selected as to obtain the afore-said relationship.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air blowing direction deflecting device for deflecting the direction of air blowing out of an air conditioner.

Conventional Technology A deflection device consisting of left and right deflection plates and upper and lower deflection plates is generally used as a means for deflecting the direction of the blowing air from an air conditioner from the direction of normal use. , the wind direction can be controlled in any vertical direction using the vertical deflection plate. Moreover, each of them has a structure that rotates around a fulcrum axis (for example, Japanese Patent Laid-Open No. 161636/1983) Problems to be Solved by the Invention Here, we will particularly focus on the upper and lower deflection plates. The upper and lower deflection plates, together with the left and right deflection plates, act as important resistance on the blowing side of the blower, causing deterioration in blower performance such as a decrease in air volume and an increase in noise. The rate of decline in blower performance differs significantly depending on where in the air passage the upper and lower deflection plates are placed.

Therefore, if the shapes of the upper and lower deflection plates are optimized and the optimal positions are selected, the performance of the blower will hardly deteriorate. However, even if you attempt to deflect the wind direction from the direction of normal use by rotating the vertical deflection plate from its normal position around the fulcrum in this position, it is common that sufficient deflection performance cannot be selected. The plate is positioned with priority given to its original function of vertical and supine performance, which has been a factor in degrading the performance of the blower.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vertical deflection plate that does not reduce blower performance in a normal position and has sufficient vertical deflection performance.

Note that good vertical deflection performance here means that the wind direction can be deflected at a large angle without significantly reducing the performance of the blower in the normal position. Further, the normal position is a deflection plate position where the air direction is set to the blowing direction that is assumed to be most commonly used, and the best blower performance is generally obtained at this position.

Means for Solving the Problems In order to solve the above problems, the present invention provides an air conditioner comprising an indoor air intake, a heat exchanger, a blower, and an air outlet for blowing out air after heat exchange. At the air outlet, a blowout angle a at which the blowout air volume is maximum and a maximum deflection angle at which the blowout angle is maximum are set. A device that rotates the wind deflection plate around a rotation axis that includes both positions A and B in its rotation trajectory, where the plate position is A and the position where sufficient wind deflection is possible at an angle is B. It is.

Effect With the above configuration, the blowout wind direction deflection device for an air conditioner of the present invention has sufficient wind direction deflection performance at the maximum design wind direction deflection angle while minimizing the deterioration of the blowing performance at the maximum air volume angle a. I can do it.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

First, the schematic structure of the air conditioner will be explained with reference to FIG.

In the figure, reference numeral 11 denotes a main body, which has an inlet 6 and an outlet 9 on the front surface, and has a wind circuit 12 communicating with the inlet 6 and outlet 9 formed inside. A heat exchanger 7 and a blower fan 8 are disposed within the air circuit 12. Further, the air outlet 9 is rotatably provided with left and right deflection plates 10 and upper and lower deflection plates 1, respectively.

Next, the configuration of the upper and lower deflection plates 1 will be explained with reference to FIG.

In the figure, it is composed of an upper and lower deflection plate 11-t, a main deflection section 2 that deflects the wind direction, a support section 3 that supports the main deflection section 2 so that it can rotate to an appropriate rotation trajectory, and a rotation shaft 4. There is.

Next, using FIGS. 1 to 4, the maximum air volume is obtained when blowing in the appropriate rotational direction.

Next, if the upper and lower deflection plates 1 are installed at position A while facing downward by 10 degrees, the deterioration in blower performance can be minimized. This position A can be easily found by experiment.

Next, if this air conditioner is designed to deflect the wind direction down to 700 degrees, position B is a position where deflection of 700 degrees is possible and there is little deterioration in blower performance, and this position can also be easily found by experiment.

Therefore, when the upper and lower deflection plates 1 are placed in position A, the deterioration in air blowing performance is minimized at the blowing angle at which the maximum air volume of this air conditioner is obtained, and when the upper and lower deflection plates 1 are moved from this position to position B, this The designed downward blowing angle of the air conditioner can be achieved without significant deterioration in blower performance.

Here, if the vertical deflection plate 1 is configured to simply rotate around the axis as shown in FIG. 3, when the vertical deflection plate 1 is tilted downward 700 at position A, the blowing air flow will be as indicated by the arrow in FIG. It is impossible to deflect the airflow due to the flow. Also reverse KB
If the upper and lower deflection plates are turned downward 10' at the position A, the air blowing performance will be significantly lower than at the A position even at the same downward deflection angle of 10°.

Next, an example of a method for moving the upper and lower deflection plates 1 from position A to position B so as to obtain the best air blowing will be described with reference to FIG.

The front #6 of the upper and lower deflection plates 1 at both positions AB are each 2a.

2b, and the rear ends are 3a and 3b, respectively. Draw a perpendicular bisector of the line segment connecting 2& and 3a and 2b and 3b, and let O be the intersection of both perpendicular bisectors. Here, when the vertical deflection plate 1 is rotated with 0 as the rotation axis, the shift between the person position and the B position is f.
IJ becomes possible.

The length of the support portion 3 and the position of the rotating shaft 4 shown in FIG. 1 may be selected so as to obtain this relationship.

Effects of the Invention As is clear from the description of the above embodiments, the present invention provides the following advantages:
The adverse effect of the upper and lower deflection plates on the performance of the blower in the normal position can be minimized, and sufficient wind direction deflection performance can be obtained in the wind direction deflection position.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an upper and lower deflection plate showing an embodiment of the present invention;
Fig. 2 is an enlarged sectional view of the main part of the air deflection device, Fig. 3 is a diagram equivalent to Fig. FIG. 5 is a longitudinal sectional view of the air conditioner according to the present invention. 1... Upper and lower deflection plates, 2... Main deflection section,
2a, 2b...Front end of upper and lower deflection plates, 3...
・・Support part, 3a, 3b・・・・・Back end of upper and lower deflection plates,
4...Rotating shaft, 6...Suction port, 7...
...Heat exchanger, 8...Blower, 9...
...Air outlet, 10...Left and right deflection plates. Name of agent: Patent attorney Toshio Nakao and 1 other person12
1! I'i51 board

Claims (1)

[Claims] At the air outlet of an air conditioner consisting of an indoor air inlet, a heat exchanger, a blower, and an air outlet that blows out air after heat exchange, the outlet angle a at which the outlet air volume is maximum and the outlet angle at which the outlet angle is maximum When there is a deflection angle b such that In the case of position A and position B, the wind direction deflection of an air conditioner is provided with a wind direction deflection plate provided at the air outlet, which rotates around a rotation axis such that both positions A and B are included in its rotation locus. Device.