JPS591142Y2 - air conditioner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air conditioner capable of cooling and heating and discharging cold air or warm air.

Generally, in such an air conditioner, cold air tends to move downward and warm air tends to move upward, so it is desirable that the cold air is discharged upward and the warm air is discharged downward.

Therefore, cold air is discharged from the top of the air conditioner body,
Devices that discharge warm air from the bottom have been proposed, but this requires reversing the blower or changing the mounting position of the filter, which complicates the circuitry and structure, leading to a rise in the price of the product itself. I was invited.

Therefore, the current situation is that a discharge port is provided at the top of the main body, hot and cold air is discharged from this single discharge port, and a louver attached to the discharge port is used to change the blowing direction upward or downward.

The main body of such an air conditioner, even a large package air conditioner, has a discharge port located at a very high position, and when blowing out warm air, it is impossible to blow the warm air downwards sufficiently using the louver alone, so improvements have been desired.

In view of these points, one of the purposes of the present invention is to provide an air conditioner that is capable of blowing warm air downward rather than being directed only by the louvers. will be explained according to the attached drawings.

In the figure, 1 is the main body of an air conditioner capable of heating and cooling.

The front surface of the main body 1 includes a discharge port 2, a front panel 3, an intake port 4, and a front panel 5 in this order from above.
Inside is a horizontal louver 6.6 that changes the blowing direction of conditioned air.
. . . and a vertical louver 7 are provided rotatably.

Inside the main body 1, there are refrigeration cycle elements such as a compressor, a condenser, an evaporator, a pressure reducing device, a switching valve (none of which is shown) that changes the refrigerant flow, and a system that circulates hot and cold air from the evaporator or condenser. Air blowers 8 are arranged respectively.

That is, this blower device 8 is located on the back side of the front panel 3 and is connected to a motor, a sirocco fan (not shown), and a circular casing 8a surrounding the sirocco fan.

Reference numeral 9 designates a ventilation chamber partitioned by a partition plate 10 behind the discharge port 2, and faces the ventilation port 8b of the casing 8a fixed to the partition plate 10.

11 is a heat insulating material provided in the ventilation chamber 9.

On the other hand, below the discharge port 2, near the top of the disc casing 8a closest to the front panel 3, there is an auxiliary discharge port 1 with a predetermined width.
2 is arranged in parallel with the discharge port 2 by drilling a hole in the front panel 3, and at the lower end of this auxiliary discharge port 12, a protrusion 13 that projects integrally with the casing 8a connects a heat insulating material 14 provided on the back surface of the panel 3. By arranging it so as to press it, the inside of the main body 1 below the protrusion 13 is divided.

15 is a partition plate 1 located between the ventilation port 8b and the discharge port 2
Therefore, the auxiliary discharge port 12 and the ventilation chamber 9 are communicated with each other through a ventilation path 16 defined by a circular surface 8a' of the casing 8a and a portion 3a of the front panel 3.

Reference numeral 17 denotes an auxiliary louver located within the ventilation passage 16, with one side facing the ventilation opening 15, and rotatable independently of the wind direction changing louver 6.7, and an operation lever protruding from the front panel 3. It can be rotated arbitrarily at 18.

That is, the auxiliary louver 17 can be in a state where it contacts a part of the casing 8a and the folded piece 3b of the front panel 3 to close the ventilation passage 16, as shown by the broken line in FIG. It faces the ventilation opening 5, and the other side is arranged to adjust the distance from the surface of the casing 8a.

In the above configuration, when cold air is to be discharged in the summer, etc., the auxiliary louvers 17 are arranged as shown by broken lines, the ventilation passage 16 is closed, and the air is blown only from the discharge port 2.

On the other hand, when discharging heating such as in winter, the auxiliary louver 17
By rotating as shown by the solid line and making the ventilation chamber 9 and the auxiliary discharge port 12 communicate with each other through the ventilation port 15, the air from the blower device 8 is discharged not only from the discharge port 2 but also from the auxiliary discharge port 12. do.

At this time, since the air flow follows the circular surface Ba' of the casing 8a, the Coanda effect (wall adhesion phenomenon) causes the auxiliary discharge port 1 to
The discharge direction from No. 2 is largely directed downward.

The above Coanda effect is caused by the tip of the louver 17 and the casing 8a.
It varies greatly depending on the distance from the surface, and if the distance is narrowed, the flow will follow the circular surface even more, allowing for downward flow.

Further, the protrusion 13 rejects the flow along the circular surface 8a' and causes the flow to flow along the front panel 3. At the same time, the auxiliary discharge port 1
Since the lower end of 2 is sealed, it is prevented from flowing into the main body 1.

At this time, the warm air discharged from the discharge port 2 is also attracted by the flow from the auxiliary discharge port 12, so that downward blowing can be obtained as a whole.

Therefore, as a configuration of this lower blowout, a circular casing 8 is used.
Since the circular surface 8a' of the auxiliary louver 17 is used, the effect can be achieved without using a separate part, and the Coanda effect for directing the downward direction can be increased by the contact and separation of the circular surface 8a' of the auxiliary louver 17. This makes it possible to change the wind direction, which is difficult to achieve with a normal wind direction changing louver 6°7.

As is clear from the above description, according to the present invention, the air flow from the auxiliary outlet located below the outlet is controlled independently of the circular surface of the casing and the air direction changing louver of the outlet with respect to this circular surface. Since this can be done using an auxiliary louver that approaches and separates, the Coanda effect on the circular surface can be changed by the auxiliary louver, making it possible to blow air downward to a large extent.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an air conditioner according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II' in FIG. 2... Discharge port, 8... Air blower, 8a
......Circular casing, 8a'...Circular surface, 8b...Blower port, 9...Blower chamber,
12... Auxiliary discharge port, 16... Ventilation path, 17... Auxiliary louver.

Claims (1)

[Scope of utility model registration request] A blower device having a circular casing, a blower chamber communicating with the blower port of the blower device and having a discharge port provided with a wind direction changing louver on the front surface thereof, and an auxiliary discharge port arranged in parallel below the discharge port. , an air passage formed along the circular surface of the circular casing and communicating between the air blowing chamber and the auxiliary discharge port; and a ventilation passage within the ventilation passage that is arranged to move toward and away from the circular surface independently of the air direction changing louver. An air conditioner consisting of a rotatable auxiliary louver.