JP2009257640A - Indoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve blowing performance and lead air farther outward, by facilitating dynamic pressure recovery of a blowout flow after flowing out of a blowout port and increasing the air amount. <P>SOLUTION: The indoor unit of an air conditioner includes a vertical air direction changing blade 9 disposed in the blowout port 10, wherein the vertical air direction changing blade 9 controls the air direction in the vertical direction via a variable arm part 8. By disposing a variable intermediate blade 6, located above a rear guider 7 and the intermediate blade 6 on a substantially same plane or lower than the substantially same plane of a stabilizer 5 and operating the indoor unit, after air flows out of the blowout port 10, the air flows in a flow passage, formed by the vertical air direction changing blade 9 and the intermediate blade 6 so that dynamic pressure recovery is facilitated, leading to increase in the air amount to allow airflow control; and thereby, blow performance can be improved and the air can be led farther outward. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an indoor unit of an air conditioner having up and down airflow direction changing blades controlled via a variable arm portion.

  Conventionally, an indoor unit of this type of air conditioner has a panel that opens and closes a suction port on the front surface of the main body and an up / down airflow direction vane that is disposed in the air discharge port. The blades are provided, and the air flow flowing from the periphery of the panel to the suction port is controlled by the operation of the middle blades. Especially when the cool air is blown upward, the air conditioner directly sucks the cool air (short circuit). In order to prevent this, the middle blade is operated in a direction in which the upper end portion is separated from the suction port on the front surface of the main body.

FIG. 6 is a cross-sectional view showing a horizontal blowing state of an indoor unit of a conventional air conditioner described in Patent Document 1. As shown in FIG. 6, the main body 1 of the indoor unit of the air conditioner includes a panel 3 that opens and closes a suction port 11 on the front surface of the main body, and a vertical airflow direction changing blade 9 that is disposed in the blowout port 10. The suction blade 11 has a middle blade 6 on the outlet 10 side, and the vertical wind direction changing blade is controlled via a variable arm portion 8.
JP 2007-120895 A

  However, in the conventional configuration, only the up / down air direction changing blade contributes to the air blowing performance, and since the up / down air direction changing blade is a single piece configuration, dynamic pressure recovery is not easy at the moment of exiting the outlet, and the air volume There is a limit to the increase of. Accordingly, since the air volume is reduced, there is a problem that there is a limit in guiding the air flow far away.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide an air conditioner that can improve air blowing performance and can guide wind to a farther distance.

  In order to solve the above-mentioned conventional problems, the indoor unit of the air conditioner of the present invention has a configuration in which the middle blades are arranged to extend the stabilizer or to extend downward from the stabilizer, thereby changing the vertical wind direction after exiting the outlet. Since the flow path is formed by the blades and the middle blades, and the dynamic pressure recovery becomes easy, the air flow can be increased and the air flow can be controlled, so the air blowing performance can be improved and the wind can be guided farther away. is there.

  In the indoor unit of the air conditioner of the present invention, it is easy to increase the air volume and to create a downward air flow by arranging the middle blades in an extension of the stabilizer or in the downward direction. Improvement can be achieved, wind can be guided farther away, and a more comfortable air-conditioning environment can be provided.

1st invention is an indoor unit of an air conditioner which has an up-and-down air direction change blade arranged at an outlet, and controls an up-and-down direction air direction via an arm part which can change an up-and-down air direction change blade, It is easy to recover the dynamic pressure of the wind blown from the outlet by placing a variable middle blade on the upper part of the rear guider and operating it with the middle blade positioned below the same plane or below the same plane. Therefore, the air blowing performance can be improved. In addition, it becomes easy to create a downward airflow.

  In the second invention, in particular, by arranging the up-and-down wind direction changing wings of the first invention so as to be substantially in the same plane of the rear guider, the shape of the entire blowout port is extended, and not only the stabilizer but also the rear guider can move. Since the pressure recovery is possible, the air blowing performance can be further improved.

  In the third invention, in particular, by arranging the vertical wind direction changing blade at the tip of the middle blade of the first or second invention, the same function as the middle blade becomes longer, the above-described dynamic pressure recovery and The effect of creating downward airflow is further improved.

  In the fourth aspect of the invention, in particular, the air blown out by operating the middle blades and the upper and lower wind direction changing blades of any one of the first to third embodiments so that the strings are reduced in parallel or downstream. Since the air is narrowed down and blown out as a united air current, the effect as a spot air current targeting a specific portion can be obtained. Moreover, since the blowing is narrowed, the wind speed that blows out increases, and the reachability is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is an external perspective view of an indoor unit of an air conditioner according to a first embodiment of the present invention. In FIG. 1, a main body 1 includes a frame 2 and a front cover 3 attached to the front of the frame 2, and a suction grill 4 is provided on the frame 2 and the front cover 3.

  Room air is sucked in from the suction port covered with the front cover 3 and the suction grill 4, and heat is exchanged inside the main body 1, and then blown out into the room as air-conditioned air from the air outlet 10.

  FIG. 2 shows an enlarged cross-sectional view of the main part near the outlet in the first embodiment of the present invention in the AA cross section of FIG. In FIG. 2, the air outlet 10 of the main body 1 of the air conditioner includes a stabilizer 5, a rear guider 7, an up / down air direction changing blade 9, and an arm portion 8 that holds the up / down air direction changing blade 9 at the tip. In addition, a heat exchanger, a blower fan, a left / right air direction changing blade, a heat exchange temperature detector, a microcomputer, and the like are constituent elements of the air conditioner 1.

  As shown in FIG. 2, the middle blade 6 mounted on the upper part of the rear guider 7 is arranged so as to be an extension of the stabilizer 5 when the air conditioner is operated. Thereby, since the middle blade 6 functions as the stabilizer 5, the apparent length of the stabilizer 5 is increased, and the dynamic pressure recovery of the wind blown from the blowout port 10 is facilitated. For this reason, ventilation performance can be improved. Further, as shown in FIG. 2, by arranging the up / down wind direction changing blade 9 via the variable arm portion 8 so as to be an extension of the rear guider 7, it becomes a shape as if the entire outlet 10 becomes long, and the stabilizer. Since not only 5 but also the rear guider 7 can recover the dynamic pressure, the air blowing performance can be further improved. In addition, the shape of the middle blade | wing 6, the up-and-down wind direction change blade | wing 9, and the stabilizer 5 is not ask | required.

(Embodiment 2)
3 and 4 are enlarged cross-sectional views of the main part in the vicinity of the air outlet in the second embodiment of the present invention in the AA cross section of FIG. As shown in FIG. 3, the middle blade 6 mounted on the upper part of the rear guider 7 during operation of the air conditioner is arranged downward from the extension line of the stabilizer 5. By adopting such a shape, the middle blade 6 presses the wind flowing out from the blowout port 10 along the stabilizer 5 downward, so that it becomes easy to generate a downward airflow. This is particularly effective because airflow easily reaches the feet during heating.

  Further, as shown in FIG. 4, by arranging the up / down airflow direction changing blade 9 so as to be connected to the tip of the middle blade 6, this downward airflow can be made easier. Further, when both the blades 6 and 9 are arranged so as to be substantially on the same plane of the stabilizer 5, the air pressure performance can be improved, so that the blowing performance can be improved.

(Embodiment 3)
FIG. 5 shows an enlarged cross-sectional view of the main part in the vicinity of the outlet in the third embodiment of the present invention in the AA cross section of FIG. As shown in FIG. 5, by arranging the chords of the middle blade 6 and the up / down airflow direction changing blade 9 to be parallel or downstream, the blown air can be throttled and blown out as a united air flow. It becomes. In such a shape, the effect as a spot air current aiming at a specific part becomes high. Further, since the air is squeezed out, the wind speed that blows out increases, so that the reachability is improved. Furthermore, by adopting a configuration that disengages the movable arm of the middle blade, especially when the middle blade 6 has a curved shape, it can be changed to convex upward or downward depending on the driving situation. Expands the range of wind direction control.

  As described above, since the indoor unit of the air conditioner according to the present invention can improve the air blowing performance and improve the wind direction performance, it can also be applied to applications such as an axial flow fan.

The indoor unit external appearance perspective view of the air conditioner in Embodiment 1 of this invention The principal part expanded sectional view of the vicinity of the blower outlet in Embodiment 1 of this invention (AA cross section of FIG. 1) The principal part expanded sectional view of the blower outlet vicinity in Embodiment 2 of this invention (AA cross section of FIG. 1). The principal part expanded sectional view of the blower outlet vicinity in Embodiment 2 of this invention (AA cross section of FIG. 1). The principal part expanded sectional view near the blower outlet in Embodiment 3 of this invention (AA cross section of FIG. 1). Cross-sectional view showing a horizontal blowing state of an indoor unit of a conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Underframe 3 Front cover 4 Suction grill 5 Stabilizer 6 Middle blade 7 Rear guider 8 Arm part 9 Up-and-down air direction change blade 10 Outlet 11 Inlet

Claims (4)

This is an indoor unit of an air conditioner that has an up / down air direction change blade arranged at the outlet and controls the up / down air direction via an arm that can change the up / down air direction change blade, and can be changed at the upper part of the rear guider. An indoor unit for an air conditioner, characterized in that a middle blade is disposed and the middle blade is disposed and operated downward from substantially the same plane of the stabilizer or substantially on the same plane. The indoor unit of an air conditioner according to claim 1, wherein the up / down wind direction changing wings are arranged so as to be substantially in the same plane of the rear guider. The indoor unit for an air conditioner according to claim 1 or 2, wherein a vertical airflow direction changing blade is disposed at a tip of the middle blade. The interior of the air conditioner according to any one of claims 1 to 3, wherein each of the middle blades and the upper and lower wind direction changing blades is arranged so that the strings are parallel or become smaller toward the downstream. unit.

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