JPS6040775B2 - air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention utilizes the characteristics of the blowing speed distribution of a cross-flow fan and the adhesion effect of the flow to the guide wall, and creates a blowing pattern that is closer to natural during cooling to enhance the cooling effect. The present invention relates to an air conditioner that enhances the heating effect by directing the air outlet direction downward during heating.

In air conditioners, it is known that it is most effective to blow air horizontally during cooling and downward during heating.

In contrast, conventional air conditioners have been devised that have a function of controlling the flow direction as shown in FIG. To explain this, 1 is the air conditioner body, 2 is the cross flow fan, 3 is the heat exchanger, 4 is the shaft 5
6 is a stabilizer, 7 is a rear guider, and the cross flow fan 2, stabilizer 6, and rear guider 7 constitute a blower. 8
is a guide crab provided on the downstream side of the stabilizer 6, and is provided in a shape that gradually expands.

Reference numeral 9 denotes a guide wall provided on the downstream side of the rear guider 7, and like the guide wall 8, it is provided in a gradually expanding shape.

In this configuration, as shown in FIG. 1, when the control plate 4 is framed so that the downstream side approaches the guide wall 8 side and the cross flow fan 2 is rotated, the flow passes through the heat exchanger 3 and the fan 2 is rotated. and comes to the upstream side of the control board 4. and control board 4
It is divided into upper flow A and lower flow B at the part. Flow A adheres to the guide wall 8 due to the Coanda effect, but at this time, the flow B below is attracted by the attached flow A and merges with A and B', becoming one flow C and integrating in the horizontal direction. This is the case with air conditioning. In the case of heating, as shown in FIG. 2, the control board 4 is tilted so that the downstream side approaches the guide wall 9. In this case, contrary to the above case, the lower flow B adheres to the guide wall 9, the upper flow A is attracted by B, and the confluence C of A and B is now blown out downward. In this case, as will be described later, the velocity distribution of the crossflow fan is biased towards the stabilizer 6 side, so the flow of A is larger than that of B in terms of the interlocking amount, and as a result, the flow of B The force of attracting A of the adhering jet is weak, and as shown in FIG. 2, the direction of the confluence C becomes a flow that is tilted slightly horizontally rather than directly below. This is a system that deflects the flow using the configuration and operation described above to enhance the air conditioning effect. In this case, when considering the temperature distribution in the air-conditioned room, the distribution becomes uniform and the air conditioning effect is great, but when considering the human body's sensation, it is not perfect. In other words, in this case, the speed distribution of the blowout flow, in other words, the blowout mode, is constant, so when air is applied to the human body in the case of air conditioning, a cold air sensation is felt for an initial period of time, but as time passes, the human body becomes irritated. This has the drawback that the effect of the cold wind tends to wear off and the comfort provided by the stimulation of the cold wind does not last long.
On the other hand, by creating a pattern in which the blowing mode changes from time to time, that is, a blowing pattern that is close to natural wind, it is possible to always obtain the stimulation of cold air and maintain comfort. In the past, the amount of storm (wind speed) was determined by changing the rotation speed of the fan from time to time.
It changed the air to give a feeling of cold air. However, since this method changes the number of rotations of the L fan, it requires a complex electronic circuit and a high-performance fan motor capable of responding to the complex electronic circuit. This has the disadvantage that it increases the cost and also changes the noise level because the rotation speed of the fan is changed. In view of this point, the present invention
An air conditioner that utilizes the characteristics of the cross flow fan's blow velocity distribution and the adhesion effect of the flow to the guide wall to change the blow pattern with a simple configuration without changing the rotation speed of the fan. The purpose is to provide the following.

The configuration of the present invention that achieves this object includes a cross flow fan, a rear guider, a stabilizer, a guide wall configured to have a gradually enlarged shape on the downstream side of the rear guider and the stabilizer, and the two guide walls. an arc-shaped control plate provided in the middle and near the downstream side of the rear guider and the stabilizer; and a material for controlling the speed distribution of the flow from the cross flow fan provided near the stabilizer on the guide wall on the stabilizer side. and a drive means for moving the member in and out of the guide wall.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 10.

In FIGS. 3 to 6, the main body of the air conditioner of the present invention, 11 is a cross flow fan, 12 is a stabilizer, and 13 is a rear guider, which constitute three blowers. 14 is a guide wall provided on the downstream side of the stabilizer 12, and is provided in a shape that gradually expands.

Reference numeral 15 denotes a guide wall provided on the downstream side of the 1' aggida 13, and like the guide wall 14, it is provided in a gradually expanding shape.

Reference numeral 16 denotes a control plate that extends around the shaft 17 and is configured in an arc shape. 18 is a heat exchanger, and 19 is an air outlet.

An enlarged view of the vicinity of the air outlet is shown in FIG. In FIG. 5, reference numeral 20 denotes a protrusion, which is configured to slide within a guider 21 provided on the guide wall 14 and to enter and exit from the wall surface of the guide wall 14. A guide ridge 22 is provided at the tip of the projection 20. This guide shaft 22 has a groove 2 carved in a disc 23 provided coaxially with the shaft 22 of the control plate.
4 and 25, and when the control plate 16 and the disk 23 are rotated by the lever 26 provided on the disk 23,
According to the rotation, the protrusion 2 moves in the groove 25.
2 is configured so that it can go in and out. In addition, the disk 23
The control plate 16 is fixed to the shaft 17. A push plate 27 is fixed to the other side of the protrusion 20.
When no external force is applied to 7, the protrusion 20 is supported by a spring 28 so as not to protrude from the wall surface of the guide wall 14. A spring 29 is attached to the other side of the push plate 27.
A cam plate 30 is provided through the cam plate 30, and when the cam 31 rotates around the cam shaft 32, its displacement is reflected by the protrusion 20.
It is configured to tell the entrance and exit of the station. The spring 29 has a spring constant larger than that of the spring 28, so that when force is applied to the push plate 27 or the cam plate 301, the spring 28 deflects first. When the guide shaft 22 rotates, the guide shaft 22 is configured to move along the groove 24'.The operation in the above configuration will be explained.

FIG. 7 shows the principle of operation when the downstream end of the control plate 16 is directed toward the guide wall 14, that is, when air is blown horizontally during cooling. FIG. 7 shows a case where the protrusion 20 does not protrude. As shown in the figure, the blowing speed distribution of the crossflow fan exhibits a characteristic that the blowing air is biased towards the stabilizer side. This flow is divided into upper and lower parts by the control plate 16, the upper flow A adheres to the guide wall 14, and the lower flow B is attracted by the adhered flow A and becomes a confluence C. In this case, as can be seen from the figure, the momentum of the flow A is larger than that of B, so the adhering flow A becomes dominant, and the two flows easily merge, resulting in the confluence as shown in C. It becomes something extraordinary. Next, as shown in FIG. 8, when the protrusion 20 is made to protrude from the wall surface of the guide wall 14, the velocity distribution is almost uniform because the portion where the velocity is large is bent toward the rear guider side as shown in the figure. This results in a velocity distribution of a large size. When this flow passes through the control plate 16, the upper flow A is prevented from adhering to the guide wall 14 by the protrusion 20, resulting in insufficient adhesion, and the momentum of the lower flow B also decreases due to the protrusion 20. Because the flow increases due to the influence of This is not easily possible, and the merged flow C becomes a wide spread flow as shown in the figure. That is, by moving the protrusion 20 in and out, it is possible to create different velocity distributions, ie, blowout modes, as shown in FIGS. 7 and 8. Next, as shown in FIG. 9, a case where the downstream side of the control board 16 is inclined toward the guide wall 15 side, that is, a case where the air is blown downward during heating will be described. In the case of Fig. 9, there are no protrusions, so the upper flow A and the lower flow B are divided into the upper flow A and the lower flow B, and since the upper flow A has more momentum, the adhesion flow is similar to the conventional example. It does not easily merge into B, and the air blows out in a slightly horizontal direction as shown in the figure. On the other hand, as shown in FIG.
When the fan 11 protrudes, the air velocity distribution from the fan 11 becomes almost uniform, and the flow on the A side is forced to flow along the surface of the control plate blade 6 by the L protrusion 20'. As a result, the momentum of the flow on the B side, that is, the adhering flow increases, and the flow of A flows along the control plate 16, making it easier for the two flows A and B to merge, and the combined flow C is almost in a downward direction. Therefore, by protruding the protrusion 20 during the noren curtain, the angle of downward blowing can be increased, and the air conditioning effect can be further enhanced. Next, the operating method will be explained.

First, when cooling, by turning the lever 26 upward,
The downstream end of the control plate 16 is tilted toward the guide wall 14, and the guide shaft 22 is fixed at the position shown in FIG. When the cam 31 is rotated by the motor 33, the guide shaft 22 reciprocates in the groove 24, and as a result, the protrusion 20 moves toward the guide wall 1.
You will be able to enter and exit from the 4th wall. As a result, the blowout pattern changes according to the movement of the protrusion 20 in accordance with the above-mentioned operating principle, and a comfortable cooling effect can be obtained. At this time, motor 33
If the rotation of the motor is kept constant, the blowout pattern will change periodically, and if the rotation of the motor is changed randomly, a random blowout pattern will be obtained. Next, when heating, turn the lever 26 downward. Then, the downstream end of the control plate 16 tilts toward the guide wall 15, and the guide shaft 22 moves along the groove 25, causing the protrusion 20 to protrude onto the wall surface of the guide wall 14. As a result, as shown in FIG. 10, the blowing direction is directed downward, so that the air conditioning effect can be enhanced. Therefore, according to this embodiment, by switching the lever 26 to move the protrusion 20 in and out, it is possible to obtain the effect that the air conditioning effect can be enhanced both during cooling and during heating.

As described above, the present invention includes a cross flow fan, a rear guider, a stabilizer, a guide wall configured to have a gradually enlarged shape on the downstream side of the rear guider and the stabilizer, and a guide wall located between the two guide walls and the rear guider. an arc-shaped control plate provided near the downstream side of the stabilizer; a member for controlling the velocity distribution of the flow from the cross flow fan provided near the stabilizer on the guide wall on the stabilizer side; and a driving means for moving the fan in and out from the guide wall, and by changing the blowout pattern of the flow using the characteristics of the blowout speed distribution of the cross flow fan and the adhesion effect of the flow to the guide wall, the following effects can be achieved. has.

'1} Continuous changes in the airflow pattern during cooling increase stimulation of the human body, creating a greater feeling of air conditioning.

Therefore, the air conditioning capacity can be lowered, leading to energy savings. '2) Improving the direction of air flow during heating will make the indoor temperature distribution more uniform.

As a result, the air conditioning capacity can be lowered as in {1',
Leads to energy savings. The above two effects can be achieved by changing the flow pattern with simple operations, so there is no need for complex circuits or mechanisms, and the configuration is simple, low cost, and easy, and the fan rotation speed can be reduced. Since the air blowing mode is changed with almost no change, it is possible to provide an air conditioner that is comfortable with little change in noise.

[Brief explanation of the drawing]

Figures 1 and 2 are cross-sectional views showing conventional air conditioners;
FIG. 3 is a perspective view showing one embodiment of the air conditioner of the present invention, FIG. 4 is a cross-sectional view of the air conditioner, and FIG.
6 is a front view of the operating section of the air conditioner, and FIGS. 7, 8, 9, and 10 each illustrate the operating principle of the air conditioner. FIG. 3...Heat exchanger, 1 1...Cross flow fan, 12
... Stabilizer, 3... Rear guider, 14, 15...
Guide wall, 16...Control board 20...Protrusion, 23...
Disc (driving means), 24... groove (driving means). Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure T Figure 8 Figure 9 Figure 10

Claims (1)

[Scope of Claims] 1. A cross flow fan, a rear guider, a stabilizer, a guide wall configured to have a gradually enlarged shape on the downstream side of the rear guider and the stabilizer, and an intermediate portion between the two guide walls and the rear guider. an arc-shaped control plate provided near the downstream side of the stabilizer; a member that controls the velocity distribution of the flow from the cross flow fan provided near the stabilizer on the guide wall on the stabilizer side;
An air conditioner comprising driving means for moving the member in and out of the guide wall. 2. The air conditioner according to claim 1, wherein the driving means is configured to be interlocked with rotation of the control plate. 3. Claim 1, characterized in that the driving means is configured to drive the members periodically or randomly.
Air conditioner as described in section.