JPS587231Y2 - air conditioner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air conditioner having a structure in which the outlet is located at a high place, such as a ceiling-hanging air conditioner, which can effectively perform instant cooling and instant heating.

A ceiling-hanging air conditioner that can perform both cooling and heating operations.For example, in a heat pump air conditioner, if the air guide blades of the outlet grill are aligned horizontally, the convection phenomenon caused by the difference in specific gravity will cause the occupants to Cool air quickly reaches the area above the floor where there is space, making it possible to quickly cool the room. However, during heating, the hot air blown out tends to accumulate on the ceiling, making it slow for the hot air to arrive, and the room temperature distribution is warmer in the upper space. However, the disadvantage is that the space below becomes cold, making heating ineffective.

On the other hand, when the air guide vanes are arranged in a downward-facing configuration, the instant heating effect is enhanced, but cold air directly hits occupants during cooling, which is not preferable.

In order to deal with these problems, it is generally used to arrange the air guide vanes in a multi-stage blowout grill with a structure in which the direction can be changed, but this requires simultaneous rotation of each vane. This makes it difficult to handle, and the cost is high because it is impossible to integrally mold the air outlet grille.Furthermore, in order to reliably change the wind direction using this guide vane, the depth dimension of the guide vane is large and the air outlet grille is difficult to handle. It had the disadvantage of becoming larger.

Focusing on this problem, the present invention makes it possible to blow cold air and warm air into the interior space of the room where the air conditioner is installed, changing the direction horizontally and diagonally downward, thereby achieving instant cooling and heating. In an effort to provide an air conditioner with a new structure, the air conditioner can be effectively and efficiently changed, and this change in air direction can be easily and reliably carried out using an air conditioner equipped with a blowout grille of fixed guide vanes. It is something.

Hereinafter, specific contents of the present invention will be explained in detail with reference to the accompanying drawings.

Figures 1 and 2 show the main parts of an example of the present invention, in which the casing with the blowout grille 1 on the front has a cubic shape with a short length, a wide frontage, and a deep depth. The indoor coil 2 installed diagonally in a forward-leaning position and the indoor fan 3 with the outlet facing forward are housed in order from the front side near the outlet grill 1, with the top surface facing the ceiling. They are suspended from the ceiling in a nearly touching arrangement.

If the air conditioner with the above structure is a heat pump type, the indoor coil 2 acts as a cooler (evaporator) during cooling and as a heater (condenser) during heating, and the air that has passed through the indoor coil 2 is used as a cold blast. Alternatively, hot air is sent from the blow-off grill 1 toward the room.

In the case of the heat pump type, a drain pan 4 is installed below the indoor coil 2 and in contact with the bottom surface of the casing in order to stop the dew generated by the dehumidifying action of the indoor coil 2 during cooling.

On the other hand, the air flowing inside the casing is distributed in a so-called forced type manner, from a suction grille 8 provided on the rear surface of the casing to the outlet grille 1 via the indoor fan 3 and the indoor coil 2.

As shown in both figures, the blowout grille 1 for blowing out cold air or hot air has a plurality of air guiding blades 5.5 arranged in stages in its width direction. - has a structure in which the upper half blade 5a is fixed horizontally, and the lower half blade 5b is fixed diagonally downward,
When the blow-off grille 1 is a molded product made of synthetic resin, the two types of blades 5a and 5b can be simultaneously molded integrally with the surrounding frame portion.

Note that the distribution of the blades 5a and the blades 5b is not necessarily limited to the same number, such as dividing the blow-off grille 1 into upper and lower halves, and it is of course possible to have a slight difference between them.

Further, in the air conditioner having the above structure, in the air passage inside the outlet grille 1, for example, in the space between the indoor coil 2 and the outlet gnore 1, there are provided guide vanes 5.5, . . . A rectifying mechanism 6, which is a feature of the present invention, is provided and has a two-stage blowout switching structure.

The rectifying mechanism 6 directs almost the entire amount of air after passing through the indoor coil 2 to the upper half where the blades 5a exist or to the blades 5b.
The device is designed to guide the user toward the lower half of the body, where the
As shown in FIGS. 1 and 2, two elongated rectifying plates 6 a and 6 b corresponding to the width of the outlet grille 1 are arranged one above the other with a predetermined width in the front-rear direction, and each of them has a predetermined width. It is horizontally and rotatably supported at the center of the direction and disposed in the air passage on the back side of the outlet grille 1, and both rectifying plates 6a and 6b are interlocked with each other while maintaining substantially parallel to each other. During cooling, it is supported in a substantially horizontal position as shown by the broken line in Figure 1, while during heating, it is supported in a downward tilted position as shown in solid line in Figure 1. It is something.

In the illustrated example, an auxiliary blowout lower is further provided on the front bottom surface of the casing at a location close to the lower rectifying plate 6b among the rectifying plates 6a and 6b, so that a portion of the warm air can be blown downward during heating. It's like that.

Incidentally, the inclination of the rectifying mechanism 6 can be easily adjusted by remote control using an actuator such as an electromagnetic solenoid in conjunction with the cooling/heating selection operation by switching the four-way switching valve. It is also possible to provide a lever protruding from the side end of the front air outlet and manually operate it from the front of the air conditioner main body.

During the cooling operation, the rectifying mechanism 6 is kept in a substantially horizontal state as described above, and the indoor coil 2 performs the cooling operation.

At this time, almost all of the air that has passed between the cross fins of the indoor coil 2 forms horizontal air flow lines, and on the other hand, the rectifying plates 6 a and 6 b of the rectifying mechanism 6 also exist in a horizontal state. , continue straight along the horizontal airflow line and reach the outlet grille 1.
The air is blown out horizontally along the ceiling.

Since the blade 5b, which is fixed diagonally downward, has a short length in the streamline direction, it does not have the effect of turning the horizontal airflow downward, and thus almost all of the blown air becomes a horizontal airflow and is sent into the room. Due to the difference in specific gravity, the air quickly exchanges air with the indoor air and reaches the lower part of the room, which averages out the temperature distribution and quickly cools the room.

Note that among the current plates 6a and 6b, the lower current plate 6b is in a substantially horizontal state, so that it also functions as a damper that blocks the auxiliary blow-off lower, thereby preventing cold air from being blown directly below, thereby averaging the room temperature distribution. It plays the role of measuring the

On the other hand, during heating operation, the rectifying mechanism 6 is kept diagonally downward in the forward direction, and the rectifying plates 6a and 6b are placed behind the lower half blade 5b and approximately parallel to the blade 5b, as shown in FIG. When positioned, most of the horizontal airflow after passing through the indoor coil 2 is diverted diagonally downward by the rectification mechanism 6.
The hot air reaches the blade 5b in the lower half, and is sent into the room as a diagonally downward warm air.

Although the specific gravity of this air is lower than that of indoor air, since it is blown downward, it is quickly replaced, and the problem of hot air stagnating in the upper space of the room is completely eliminated.

At that time, the lower current plate 6 among the current plates 6 a and 6 b
b opens the auxiliary blow-off lower to blow out a portion of the warm air that has passed through the indoor coil 2 directly below the blow-off lower, thus achieving an immediate heating effect.

The above-described example is not limited to a ceiling-suspended air conditioner, but may also be a vertical floor-standing air conditioner that has an air outlet at the top. It can be applied if the structure is located at a high place above the surface.

As described in detail above, the air conditioner of the present invention has a blowout grill 1
Air guide vanes 5°5...
・While the upper half is fixed horizontally and the lower half is fixed diagonally downward, the air after passing through the indoor coil 2 is placed in the air passage inside the outlet grill 1, and the air is turned into a horizontal airflow during cooling, and heated. Two rectifying plates 6a and 6b having a predetermined width in the front and back direction are arranged in vertical positions and freely rotatable in the vertical direction so as to sometimes rectify the airflow diagonally downward. 5.5 alone does not have sufficient rectification function,
In the air passage between the indoor coil 2 and the air guide vanes 5, 5, there are two rectifying plates 6a that are considerably long in the depth direction;
6b ensures that the blowing air is rectified, and unlike a rectifying mechanism that consists of a single rectifying plate, the airflow after passing through the indoor coil 2 is made into a laminar flow with the same direction. It is easy to change direction horizontally and diagonally downward,
Compared to conventional equipment that did not allow accurate direction changes, the performance has been significantly improved.

In addition, since the outlet grille 1 has no moving parts, it is easy to integrally mold it with synthetic resin, and since it can be made into a thin structure, the outlet grille 1 can be formed compactly, thereby making it possible to make an air conditioner with a simple structure. is an air conditioner with great practical value.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of an example of the air conditioner of the present invention, and FIG. 2 is a perspective view of the main parts in FIG. 1. 1...Blowout grill, 2...Indoor coil, 3...Indoor fan, 4...Drain pan, 5...Air guide Blade, 5a...
... Horizontal blade, 5b... Diagonally downward blade, 6... Rectification mechanism, 6 a, 6 b...
···rectifier.

Claims (1)

[Scope of utility model registration request] In an air conditioner equipped with an indoor coil 2 that acts as a cooler during cooling and as a heater during heating, indoor air can be fed from a front outlet grill 1 after passing through the indoor coil 2. The air guide vanes 5, 5, etc., which are arranged in stages in the direction, are fixed in the upper half horizontally and the lower half diagonally downward, respectively, in the air passage inside the blowout grille 1. Most of the air after passing through the indoor coil 2 is converted into a horizontal air flow so as to pass through the upper half of the outlet grille 1 during cooling, and through the outlet grille 1 during heating.
Two rectifier plates 6a, 6b having a predetermined width in the front and rear direction to rectify the airflow diagonally downward so as to pass through the lower half of the
An air conditioner characterized by being arranged in vertical positions and freely rotatable in the vertical direction.