JPH0327226Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a ceiling-embedded air conditioner.

(Prior Art) In a ceiling-embedded air conditioner, as shown in FIG. ' side and the air outlet 7' side below the main body casing 3' (in other words, the air outlet 7' side of the panel 2'). It is well known that a damper 14' that functions as an air volume adjustment mechanism is attached (for example,
(Refer to Publication No. 94222).

(Problems to be Solved by the Invention) When adopting a structure in which the damper 14' is attached to the air outlet 7' side of the main body casing 3' as in the above-mentioned known example, the damper 14' is attached as shown in FIG.
Although it is applicable to a structure in which the air flow W' is mainly blown out from the outlet grille 10' on the panel 2' side when the duct 1 is fully open,
It cannot be applied to a structure in which the blown air flow W' is mainly blown out from the 3' side. Also, damper 1
4' is used in a fully open state, the damper 14' attached to the air outlet 7' increases the flow resistance,
There is also a possibility that it will obstruct the blowing air flow W'.

This invention was made in view of the above points,
In a ceiling-embedded air conditioner configured so that the airflow is mainly blown out from the duct side, by adjusting the flow rate of the blown airflow on the duct side, the airflow is selectively blown out to the duct side and the panel side. The purpose is to enable airflow to be blown out.

(Means for Solving the Problems) In the present invention, as a means for solving the above problems, as shown in FIGS. 1 to 3, a fan 4 and a A main body 1 in which a heat exchanger 5 is arranged, and the main body 1
A duct 13 is connected to an opening 8 formed in the side surface of the main casing 3 in the blowing direction of the air flow that has passed through the heat exchanger 5. In the ceiling-embedded air conditioner, an air volume adjustment mechanism 14 is provided within the duct 13 to adjust the flow rate of the blown air flow.

(Function) In the present invention, the following effects can be obtained by the above means.

That is, by operating the air volume adjustment mechanism 14 attached to the duct 13, a part of the airflow _W1 that was mainly blown out from the duct 13 side can be blown out from the blowout grille 10 side of the panel 2. Become,
Effective two-way blowing becomes possible. Furthermore, if the air volume adjustment mechanism 14 is fully closed, it can also be used as a one-way blower.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The ceiling-embedded air conditioner of this embodiment has a ceiling 1
1, which is installed in the lowered part 11a, and has a main body 1 in which a fan 4 and a heat exchanger 5 are arranged in a main body casing 3 whose bottom surface is open;
The lower part of the main body 1 is closed and is comprised of a panel 2 having a suction grill 9, an outlet grill 10, etc.

The main body 1 has an opening 1 formed in the ceiling 11.
2, it is supported by support bolts 15, 15, . . . to a structure (not shown) above the ceiling 11.

A drain pan 16 located below the heat exchanger 5 is provided on the lower surface of the main body 1, and the drain pan 16 is formed with an air outlet 7 configured to blow out air downward. . Reference numeral 6 indicates an air suction port on the main body 1 side.

On the other hand, in the panel 2, at positions corresponding to the air inlet 6 and the air outlet 7 on the main body 1 side,
A suction grill 9 and an outlet grill 10 are provided, respectively.

Further, in the main body casing 3, a side wall 3a which is close to the air outlet 7 and which faces the blowing direction of the air flow W that has passed through the heat exchanger 5 has a horizontal opening configured to connect the duct 13. 8
is formed, and the opening 8 is adapted to act as an air outlet in this embodiment.

The duct 13 is for connecting the opening 8 on the main body 1 side and the opening 17 formed in the ceiling lowered part 11a. With this configuration, the air flow _W1 blown out from the duct 13 side and the air flow blown out from the outlet grille 10 side of the panel 2.
The flow rate ratio with W ₂ will be 9:1.

The duct 13 has a flexible part 13a made of an elastic material in the middle part, and a connection port 18 to be inserted into the opening 8 of the main body 1 is formed at one end side (main body connection side). A flange portion 19 that comes into contact with the edge of the opening 17 is formed on the end side (ceiling step lowering portion side).

A damper is provided inside the duct 13 and acts as an air volume adjustment mechanism 14 for adjusting the flow rate of the air flow W ₁ flowing through the duct 13 .

As shown in FIG. 2, the damper 14 includes a square cylindrical damper case 20 fixed to the inner surface of the duct 13, and a set of blades 21, 21 rotatably supported within the damper case 20. a plurality of sets of blades, a connecting plate 22 which connects these blades 21, 21 in an interlocking manner and is slidable horizontally along the upper surface of the damper case 20, and an operation knob for slidingly operating the connecting plate 22. 23. A linking piece 24 is integrally formed on the operating knob 23, and the linking piece 24 is connected to a hanging piece 25 hanging from the connecting plate 22 via a pin 26.
That is, a pin 26 protruding from the linking piece 24 is engaged with a vertically elongated hole 27 formed in the hanging piece 25, and when the operating knob 23 is rotated in the direction of arrow A, the linking plate 22 is rotated as shown by the arrow A. It is constructed so that it can be slid in the B direction.

On the other hand, the blades 21, 21 are
Pins 28, 28 protruding from the center of the upper end are inserted into elongated holes 2 formed in the sliding direction in the connecting plate 22.
The damper case 20 can be freely rotated by engaging pins 30, 30 that are engaged with the damper case 20 and projecting from the center of the lower end of the blades 21, 21, and pivoted to holes 31, 31 formed in the bottom surface of the damper case 20. It is pivotally supported.

Furthermore, the connecting plate 22 and the blades 21, 21 are provided in elongated holes 33, 33 of the engaging pieces 32, 32, which are provided in a protruding manner on the upper end side of the blades 21, 21. They are linked by engaging pins 34, 34. Note that the engaging pieces 32, 32 are protruded from the upper ends of the blades 21, 21 at opposite positions. Therefore, by sliding the connecting plate 22 in the direction of arrow B, the blade 2
1 and 21 are rotated in opposite directions (that is, in the directions of arrows C and D), and the opening degree of the damper 14 is adjusted from fully open to fully closed by this rotational movement.

Furthermore, an outlet grille 35 is attached to the outer end of the duct 13. The code 36 is the duct 13
This is a heat insulating material applied to the outer periphery.

Next, the operation of the ceiling-embedded air conditioner according to the illustrated embodiment will be explained.

In this ceiling-embedded air conditioner, the air flow W sucked in from the suction grill 9 by the drive of the fan 4 is heated or cooled in the heat exchanger 5 to become conditioned air, and then the air is blown out from the panel 2. Air is blown out from the grill 10 and the outlet grille 35 of the duct 13 to heat or cool the room, but when the damper 14 in the duct 13 is fully open, the air flow W that has passed through the heat exchanger 5
An air flow W 1 corresponding to 90% of the amount of air flow W ₁ is blown out from the outlet grille 35 of the duct 13 , while an air flow W ₂ corresponding to 10% of the blown air flow W that has passed through the heat exchanger 5
is blown out from the blow-off grille 10 of the panel 2. Therefore, the air flow W ₁ blown out from the duct 13 air-conditions the entire room, and the air flow W 2 blown out from the outlet grille 10 of the panel ₂ causes the air below the air conditioner installation location to be air-conditioned. Local air conditioning will result in an extremely good indoor temperature distribution.

Then, by adjusting the opening degree of the damper 14,
When the flow rate of the air flow _W1 blown out from the duct 13 is reduced, the air flow blown out from the panel 2
The flow rate of W ₂ increases, and when the damper 14 is fully closed, conditioned air is blown out only from the blow-off grille 10 of the panel 2, making it possible to select the blow-off flow rate and blow-out direction according to the installation location of the air conditioner. .
If it is not necessary to blow air from the blow-off grille 10 on the panel 2 side, the damper 14 should be fully opened and the air blow-off opening 7 on the main body 1 side should be closed off with the closing plate 37, as shown by the chain line in FIG. For example, conditioned air can be blown out only from the outlet grille 35 of the duct 13.

If the damper 14 is installed in the duct 13 as in this embodiment, the structure on the main body 1 side can be simplified and miniaturized compared to the conventional example in which the damper 14 is attached to the air outlet 7 of the main body 1. .

Further, in the ceiling-embedded air conditioner of this embodiment, as shown in FIG. 3, the duct 13 is removed,
By attaching a blind plate 38 to the opening 8 on the main body 1 side, conditioned air can be blown out only from the outlet grille 10 on the panel 2 side. At this time, if the structure of this embodiment is adopted in which the damper 14 is attached inside the duct 13, there is no member on the main body casing 3 side that obstructs the flow of air, which contributes to reducing the flow resistance.

It goes without saying that the present invention is not limited to the illustrated embodiments, and that the design can be modified as appropriate without departing from the gist of the invention.

(Effect of the invention) As described above, according to the invention, the duct 13 is connected to the opening 8 formed on the side surface of the main body casing 3 in the blowing direction of the air flow that has passed through the heat exchanger 5. In the ceiling-embedded air conditioner, an air volume adjustment mechanism 14 for adjusting the flow rate of the blown air flow is attached in the duct 13.
By operating the air volume adjustment mechanism 14, a part of the air flow _W1 that was mainly blown out from the duct 13 side is blown out from the blowout grille 10 side of the panel 2,
This has the practical effect of making it possible to effectively blow air in two directions corresponding to the installation location of the air conditioner, and making it possible to improve the temperature distribution in the room.

Further, when the air volume adjustment mechanism 14 is fully closed, there is an advantage that the air can be used as one-way air blowing only from the blow-off grille 10 of the panel 2.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of a ceiling-embedded air conditioner according to an embodiment of the present invention, and FIG. 2 is an enlarged perspective view showing the structure of a damper in the ceiling-embedded air conditioner shown in FIG. 1. 3 is a longitudinal sectional view showing another example of use of the ceiling-embedded air conditioner shown in FIG. 1, and FIG. 4 is a longitudinal sectional view showing a conventionally known ceiling-embedded air conditioner. 1...Main body, 2...Panel, 3...Main casing, 4...Fan, 5...Heat exchanger, 8...Opening, 10...Blowout grill, 13...Duct, 14
...Air volume adjustment mechanism.

Claims (1)

[Scope of utility model registration request] The main body 1 is composed of a main body 1 in which a fan 4 and a heat exchanger 5 are disposed in a main body casing 3 having an open bottom, and a panel 2 that closes the lower part of the main body 1 and has a blowout grill 10. In a ceiling-embedded air conditioner in which a duct 13 is connected to an opening 8 formed on the side of the casing 3 in the direction in which the airflow that has passed through the heat exchanger 5 blows out, the duct 13 has a blowout A ceiling-embedded air conditioner characterized by being equipped with an air volume adjustment mechanism 14 for adjusting the flow rate of air flow.