JPH08121855A - Outlet opening for underfloor air conditioner - Google Patents

Abstract

PURPOSE: To provide an outlet opening for an underfloor air conditioner wherein, even if it is provided in a narrow, long space, outlet air does not flow along a partition or wall, and no draft is produced. CONSTITUTION: Approximately fan-like ventilation holes 101 are provided symmetrically in two places about the center of the bottom surface of a lower cylinder 102, air velocity is distributed immediately before a grille 103, since the air is blown into a room through he grille 103 for producing spiral air flow by a swirl vane 104, the diffusion characteristic of the outlet stream can be made flat and the outlet stream is directed in a direction to avoid contact with the partition or wall, thereby realizing a comfortable air-conditioning atmosphere where no draft is produced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor air-conditioning outlet for supplying air-conditioned air into a double-floor structure having a double-floor structure and blowing the supplied air-conditioned air into a living room for air conditioning. .

[0002]

2. Description of the Related Art In recent years, under-floor air-conditioning has become popular as air-conditioning in offices due to uneven distribution of load due to the development of office automation equipment and the like.

Conventionally, this type of underfloor air conditioning outlet has generally been constructed as shown in FIGS. 19 and 20.
The configuration will be described below with reference to FIGS.

As shown in the drawing, there are provided a lower cylinder 102 having a ventilation hole 101 for taking in air on its side surface and a grill 103 in contact with the upper portion of the lower cylinder 102 for blowing the conditioned air passing through the ventilation hole 101 into the living room. The grill 103 is provided with swirl vanes 104 that form a swirl flow.

In the above structure, the conditioned air is supplied to the lower cylinder 102.
When it is introduced into the ventilation hole 101 of the above and passes through the grill 103, it becomes a swirling airflow by the swirling vanes 104 and is blown out into the living room.

[0006]

In such a conventional underfloor air conditioning outlet 105, the outlet air diffuses while forming a swirling flow evenly in the circumferential direction, so that it can be used in partitions or narrow spaces in narrow spaces such as corridors. There was a problem that the blown air flow collided with the wall, and the air flowed along the partition and the wall, causing draft.

The present invention solves the above-mentioned problems, and its first object is to prevent drafts from being generated by the blowing airflow transmitted through partitions or walls even when installed in an elongated space.

A second object is to vary the wind speed at the same point in the living room, promote diffusion of air in the living room, and reduce the distribution of air temperature.

A third object is to select the blowout area in the living room and blow out the conditioned air. A fourth object is to blow out the conditioned air by arbitrarily adjusting the blowing direction and the air volume in the living room.

A fifth object is to switch the diffusion characteristics of the blown airflow. A sixth object is to change the wind speed at the same point in the living room to improve comfort.

A seventh object is to switch the diffusion characteristics of the blown airflow so that the air volume of the air conditioner can be easily adjusted.

An eighth object is to switch the diffusion characteristics of the blowout airflow so that the airflow of the air conditioner can be easily adjusted and blow out the fluctuating wind.

[0013]

A first means for achieving the first object of the present invention is to provide a lower cylinder having a plurality of vent holes at symmetrical positions with respect to the center of the bottom surface, and an upper part of the lower cylinder. The grill has a structure which is located on the downstream side and blows the conditioned air passing through the ventilation hole into the living room, and a swirl vane which forms a swirl flow in the grill.

A second object of the present invention to achieve the second object.
The means comprises a lower cylinder drive motor provided in the center of the lower cylinder side of the grill, and a rotary shaft connecting the lower cylinder drive motor and the center of the lower cylinder.

A third aspect for achieving the third object of the present invention
Means for contacting the inner bottom portion of the lower cylinder with a shield plate having a rotatable lower cylinder and a pair of shielding blades having a size that closes a vent hole in the bottom surface of the lower cylinder in symmetrical positions with respect to the center of the bottom surface. The lower cylinder is configured so as to be non-rotatable independently.

A fourth object for achieving the fourth object of the present invention.
The means is configured such that the shield plate is rotatably provided independently of the lower cylinder.

A fifth aspect for achieving the fifth object of the present invention.
Means for closing the lower cylinder having a plurality of ventilation holes evenly provided at symmetrical positions with respect to the center of the bottom surface of the lower cylinder, and a dimension for closing ¼ of the plurality of ventilation holes on the bottom surface. A diffusion switching plate, which is a pair of the diffusion switching blades that are symmetrically combined with respect to the center of the bottom surface, is provided in contact with the inner bottom of the lower cylinder so as to be rotatable independently of the lower cylinder.

A sixth aspect for achieving the sixth object of the present invention.
The means has a configuration in which a motor for driving the diffusion switching plate and a rotating shaft connecting the centers of the diffusion switching plates are provided.

A seventh aspect for achieving the seventh object of the present invention.
The means is a lower cylinder having two substantially fan-shaped vent holes having a central angle (2α + β) degrees on the bottom surface of the lower cylinder, and a central angle β movable in the vent hole. The diffusion switching plate having a pair of the diffusion switching vanes at a symmetrical position with respect to the center of the bottom surface is provided so as to be rotatable independently of the lower cylinder and in contact with the inner bottom portion of the lower cylinder, and α + β = 90 degrees and , Α ≦ β.

Eighth Object to Achieve the Eighth Object of the Present Invention
Means for providing a diffusion switching plate drive motor capable of switching the rotation direction at the center of the lower cylinder side of the grill, and a rotary shaft connecting the diffusion switching plate drive motor and the center of the diffusion switching plate. It was done.

[0021]

According to the present invention, by the structure of the above-mentioned first means, the conditioned air is introduced from the ventilation hole provided on the bottom surface of the lower cylinder of the underfloor air conditioning outlet, and the wind speed passing through the grill is distributed. The diffusion characteristics of the blown swirling airflow can be made flat.

Further, by the structure of the second means,
The positions of the two vent holes are rotationally moved, and the blown swirling airflow having a flat diffusion characteristic can be rotated.

According to the structure of the third means, the shielding plate for closing the ventilation hole of the lower cylinder is provided, and when the two ventilation holes of the shielding plate and the lower cylinder are overlapped and blocked, the conditioned air is blown out for underfloor air conditioning. It is not introduced into the mouth and can be blown out into the living room.

Further, according to the structure of the fourth means, the lower cylinder and the shield plate are independently rotated, the direction of flat diffusion of the blown air is changed by the position of the lower cylinder, and the blown air volume is changed by the position of the shield plate. Is what you can do.

Further, according to the structure of the fifth means, when the diffusion switching plate is positioned so as not to overlap with any of the four ventilation holes provided on the bottom surface of the lower cylinder, the blown swirling airflow is diffused evenly to the surroundings, and diffusion switching is performed. When the plate is overlapped with the two ventilation holes located symmetrically with respect to the center of the bottom surface of the lower cylinder, the blown swirling airflow can be diffused flatly to the surroundings.

Further, according to the structure of the sixth means, the diffusion switching plate is rotated by the motor to continuously switch the opening of the bottom surface of the lower cylinder between the four ventilation holes and the two ventilation holes so as to surround the blowing swirling airflow. It is possible to continuously switch the diffusion to the uniform diffusion and the flat diffusion.

Further, according to the structure of the seventh means, the opening area of the vent hole provided on the bottom surface of the lower cylinder is constant even if the diffusion characteristic is switched, and the change of the pressure loss due to the switching of the diffusion characteristic can be made extremely small. It is possible.

Further, according to the structure of the eighth means, the diffusion switching plate is rotated by the motor to keep the opening area of the bottom surface of the lower cylinder constant and keep the change of the pressure loss small, while the diffusion characteristics are evenly diffused and flatly diffused. By switching to and, the wind speed at the same point in the living room can be changed.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG. The same parts as those in the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the drawing, a lower cylinder 102 having two fan-shaped vent holes 101 at symmetrical positions with respect to the center of the bottom surface 1.
And a grill 103 in contact with the upper downstream side of the lower cylinder 102 for blowing the conditioned air passing through the two ventilation holes 101 into the living room, and the swirl vanes 104 forming a swirl flow on the grill 103.
Is provided.

With the above structure, the ventilation hole 10 provided in the bottom surface 1 of the lower cylinder 102 of the underfloor air conditioning outlet 105.
Air-conditioned air is introduced from 1. The wind speed immediately in front of the grill 103 is high immediately above the ventilation hole 101, and the wind speed passing through the grill 103 is distributed. Since the ventilation holes 101 provided in the bottom surface 1 of the lower cylinder 102 are symmetrical with respect to the center of the grill 103, the distribution of the blowing wind speed immediately before the grill 103 is symmetrical with respect to the center of the grill 103. The conditioned air is deflected by the swirl vanes 104 into a swirling airflow with the distribution of the wind speed, and is blown into the living room. Experimental Results As shown in FIG. 4, the reaching distance of the blowing airflow is long in the portion where the blowing air speed is high, and the reaching distance of the blowing airflow is short in the portion where the blowing air speed is low. Can be spread evenly and not evenly.

As described above, according to the underfloor air-conditioning outlet of the first embodiment of the present invention, since the swirling airflow having a flat diffusion characteristic is blown out, the blowing airflow does not hit the partition or the wall. It is possible to provide a comfortable air-conditioning environment in which drafts do not occur along the wall.

Although a fan-shaped vent hole is provided on the bottom surface of the lower cylinder in this embodiment, even if the shape of the vent hole is different, the wind speed immediately before the grill is located at a symmetrical position with respect to the center of the lower cylinder. Ventilation holes may be provided so that distribution is generated, and the effect is not changed.

In this embodiment, two ventilation holes are provided on the bottom surface of the lower cylinder. However, ribs for reinforcement or the like may be provided on the ventilation hole to form three or more ventilation holes. Needless to say.

Next, the second embodiment of the present invention will be described with reference to FIG.
Will be described with reference to. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the lower cylinder 10 of the grill 103
The lower cylinder drive motor 2 is provided in the center of the second cylinder 2 and the rotary shaft 3 connecting the lower cylinder drive motor 2 and the center of the bottom surface 1 of the lower cylinder 102.
Is provided.

With the above structure, the lower cylinder driving motor 2 rotates the rotary shaft 3 and the lower cylinder 102 connected to the rotary shaft 3.
Rotates. Therefore, the positions of the two ventilation holes 101 provided on the bottom surface 1 of the lower cylinder 102 are rotationally moved, and the grill 1
Since the distribution of the blowing wind speed immediately before 03 also rotates, the blowing wind speed to the living room also moves, and the blowing swirling airflow can move with a flat diffusion characteristic.

As described above, according to the outlet for underfloor air conditioning of the second embodiment of the present invention, the wind speed at the same point in the living room fluctuates, diffusion in the living room is promoted, and deviation of the indoor temperature is reduced. can do.

Although a fan-shaped vent hole is provided on the bottom surface of the lower cylinder in the present embodiment, even if the shape of the vent hole is different, the wind speed immediately before the grill is located symmetrically with respect to the center of the lower cylinder. Ventilation holes may be provided so that distribution is generated, and the effect is not changed.

In this embodiment, two ventilation holes are provided on the bottom surface of the lower cylinder, but ribs for reinforcement and the like may be provided in the ventilation hole to form three or more ventilation holes. Needless to say.

In this embodiment, the motor is driven by the motor, but it goes without saying that the lower cylinder may be manually rotated.

Although only the motor is installed in this embodiment, it goes without saying that the operation may be changed depending on the time in combination with the timer.

Although only the motor is installed in this embodiment, it goes without saying that remote operation may be performed in combination with a remote controller.

Although only the motor is installed in this embodiment, it goes without saying that the system control may be performed in combination with the communication control system.

Next, the third embodiment of the present invention will be described with reference to FIG.
~ Will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the lower cylinder 102 is rotatable, and when the lower cylinder 102 rotates, the position of the ventilation hole 101 on the bottom surface 1 rotates. Vent hole 10 on the bottom surface 1 of the lower cylinder 102
A shield plate 5 having a substantially fan-shaped shield blade 4 having a size for closing 1 is symmetrically combined with respect to the center of the bottom face 1 is provided on the inner bottom portion 6 of the lower cylinder 102, and the shield plate 5 is non-rotatably fixed. is there.

With the above structure, the shielding plate 5 has a size capable of closing the ventilation hole 101 of the lower cylinder 102. Therefore, when the two ventilation holes 101 of the shielding plate 5 and the lower cylinder 102 are overlapped and closed, The conditioned air is not introduced into the underfloor air conditioning outlet 105 and is not blown into the living room. When the position of the shield plate 5 is fixedly installed so as to correspond to the area where the conditioned air is not desired to be blown out, even if the ventilation hole 101 of the lower cylinder 102 is rotationally moved, the lower cylinder 10 is not provided in the area where the shield plate 5 is installed.
The second ventilation hole 101 is closed by the shielding plate 5, the conditioned air is not introduced into the underfloor air conditioning outlet 105, and the conditioned air is not blown into the living room, so the air is blocked at a position corresponding to an area that is not desired to be blown. When the plate 5 is fixedly installed, it is possible to prevent the lower cylinder 102 from being blown out even when it is rotated.

As described above, according to the underfloor air conditioning outlet of the third embodiment of the present invention, the outlet area can be limited.

In this embodiment, a substantially fan-shaped ventilation hole is provided on the bottom surface of the lower cylinder. However, even if the shape of the ventilation hole is different, the wind speed immediately before the grill is located symmetrically with respect to the center of the lower cylinder. Ventilation holes may be provided so that distribution is generated, and the effect is not changed.

In this embodiment, two ventilation holes are provided on the bottom surface of the lower cylinder, but ribs for reinforcement or the like may be provided on the ventilation hole to form three or more ventilation holes. Needless to say.

In this embodiment, the driving is performed manually, but it goes without saying that the lower cylinder may be rotated by a motor.

In this embodiment, the size of the shielding plate is set so that the ventilation hole of the lower cylinder can be completely closed. However, by reducing the area of the shielding plate, it is possible to limit the region where the blown air volume is small. It goes without saying that you can do it.

In this embodiment, the shielding plate is installed inside the lower cylinder at the bottom of the lower cylinder, but the effect does not change if it is installed outside the lower cylinder.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 9 and 10. The same parts as those in the first and third embodiments are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the shield plate 5 is rotatable independently of the lower cylinder 102. With the above configuration, by rotating the lower cylinder 102 and changing the position of the ventilation hole 101 of the lower cylinder 102, it is possible to change the diffusion direction of the blown swirling airflow, which is a flat blowing characteristic, while the lower cylinder 10 is being changed.
Since 2 can rotate independently of the shielding plate 5, the shielding plate 5 is rotated and the area of the openings of the two ventilation holes 101 of the shielding plate 5 and the lower cylinder 102 can be adjusted to adjust the blown air volume. . For example, by reducing the area of the opening of the ventilation hole 101, the amount of air blown from the underfloor air conditioning outlet 105 to the living room is reduced, and further, the shielding plate 5 is rotated to completely close the ventilation hole 101. Then, the conditioned air is not introduced into the underfloor air conditioning outlet 105 and does not blow out into the living room.

As described above, according to the underfloor air conditioning outlet of the fourth embodiment of the present invention, it is possible to change the diffusion direction of the outlet airflow and adjust the outlet air volume.

Although a fan-shaped vent hole is provided on the bottom surface of the lower cylinder in this embodiment, even if the shape of the vent hole is different, the wind speed immediately before the grill is set at a symmetrical position with respect to the center of the lower cylinder. Ventilation holes may be provided so that distribution is generated, and the effect is not changed.

In this embodiment, two ventilation holes are provided on the bottom surface of the lower cylinder, but ribs or the like for reinforcement may be provided in the ventilation hole to form three or more ventilation holes. Needless to say.

In this embodiment, the driving is performed manually, but
It goes without saying that the lower cylinder may be rotated by the motor.

In the present embodiment, the size of the shielding plate is set so that the ventilation hole of the lower cylinder can be completely closed. However, by reducing the area of the shielding plate, it is possible to limit the region where the blown air volume is small. It goes without saying that you can do it.

In this embodiment, the shielding plate is installed inside the lower cylinder at the bottom of the lower cylinder, but the effect is not changed even if it is installed outside the lower cylinder.

Next, the fifth embodiment of the present invention will be described with reference to FIG.
1, will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the lower cylinder 102 is provided with four substantially fan-shaped ventilation holes 101 evenly symmetrically with respect to the center of the bottom surface 1 of the lower cylinder 102, and one ventilation hole 101 on the bottom surface 1. A pair of diffusion switching plates 8 each having a substantially fan-shaped diffusion switching blade 7 having a closing size combined at a symmetrical position with respect to the center of the bottom surface 1 is in contact with the inner bottom portion 6 of the lower cylinder 102 so as to be rotatable independently of the lower cylinder 102. It is provided.

With the above configuration, when the diffusion switching plate 8 is set at a position where it does not overlap any of the four ventilation holes 101 of the lower cylinder 102, the conditioned air is evenly introduced from the four ventilation holes 101. The introduced conditioned air passes through the grill 103 and is evenly swirled and diffused into the living room. On the other hand, four ventilation holes 1
If the position of the diffusion switching plate 8 is set so as to block the two ventilation holes 101 that are symmetrical with respect to the center of the bottom surface 1 of the lower cylinder 102 among 01, the two ventilation holes 101 that are not blocked Only conditioned air is introduced. The unvented ventilation holes 101 are located symmetrically with respect to the center of the bottom surface 1 of the lower cylinder 102, and a distribution of the wind speed immediately in front of the grill 103 is generated, which can flatten the blowout swirl diffusion to the living room. it can.

As described above, according to the outlet for underfloor air conditioning of the fifth embodiment of the present invention, the diffusion characteristic of the outlet airflow can be switched between the uniform diffusion and the flat diffusion to match the load and the layout.

In this embodiment, the fan-shaped ventilation holes are provided on the bottom surface of the lower cylinder. However, even if the shapes of the ventilation holes are different, the wind speed immediately before the grill is located symmetrically with respect to the center of the lower cylinder. Ventilation holes may be provided so that distribution is generated, and the effect is not changed.

In this embodiment, four ventilation holes are provided on the bottom surface of the lower cylinder. However, even if the number of ventilation holes is different, when the ventilation holes and the diffusion switching vanes overlap, the center of the lower cylinder is The ventilation holes may be opened at symmetrical positions, and a plurality of ventilation holes may be provided so that the wind speed is distributed immediately before the grill, and the effect is not changed.

Next, a sixth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. The same parts as those in the first and fifth embodiments are designated by the same reference numerals and the description thereof will be omitted.

As shown in the drawing, four substantially fan-shaped vent holes 101 having a central angle of 45 degrees or less are provided at symmetrical positions with respect to the center of the bottom surface 1.
Lower cylinder 102 provided at one place and one vent hole 101 on the bottom surface 1
A diffusion switching plate 8 in which two substantially fan-shaped diffusion switching blades 7 having a size that closes the bottom surface 1 are symmetrically combined with respect to the center of the bottom surface 1 is provided in contact with the inner bottom portion 6 of the lower cylinder 102 and is rotatable independently of the lower cylinder 102. The diffusion switching plate driving motor 9 is provided in the center of the lower cylinder 102 side of the grill 103, and the rotating shaft 10 connecting the diffusion switching plate driving motor 9 and the center of the diffusion switching plate 8 is provided.

With the above structure, the rotation switching shaft 10 is rotated by the diffusion switching plate driving motor 9 to change the position of the diffusion switching plate 8. For example, the diffusion switching plate 8 and the lower cylinder 1
When the ventilation holes 101 of 02 are not overlapped, the conditioned air is evenly introduced from the four ventilation holes 101. The introduced conditioned air passes through the grill 103 and is evenly swirled and diffused into the living room. On the other hand, when the position of the diffusion switching plate 8 is set so as to close the two ventilation holes 101 which are symmetrical with respect to the center of the bottom surface 1 of the lower cylinder 102 among the four ventilation holes 101, the diffusion switching plate 8 is not blocked. The conditioned air is introduced only from the two ventilation holes 101. Since the vent holes 101 which are not blocked are located symmetrically with respect to the center of the bottom surface 1 of the lower cylinder 102, there is a distribution in the wind speed immediately in front of the grill 103, and the swirling diffusion of the blown airflow in the living room is flat. Become. When the rotation of the diffusion switching plate drive motor 9 is performed by 1/8 rotation, the ventilation holes 101 are repeatedly switched between four openings and two openings (not shown) to alternately alternate the uniform diffusion and the flat diffusion of the blowout air flow. It can be carried out.

As described above, according to the underfloor air-conditioning outlet of the sixth embodiment of the present invention, the diffusion characteristic of the outlet airflow can be changed alternately between the uniform diffusion and the flat diffusion, so that the wind speed at the same point in the living room can be changed. A fluctuating wind with a change can be formed to improve comfort.

Although a fan-shaped vent hole is provided on the bottom surface of the lower cylinder in this embodiment, even if the shape of the vent hole is different, the wind speed immediately before the grill is located at a symmetrical position with respect to the center of the lower cylinder. Ventilation holes may be provided so that distribution is generated, and the effect is not changed.

Next, the seventh embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the bottom cylinder 102 is provided with two substantially fan-shaped vent holes 101 having a central angle (2α + β) degrees at two positions on the bottom surface 1 of the bottom cylinder 102, and the vent hole 10.
The diffusion switching blade 7 with a central angle of β degrees that can move within
A diffusion switching plate 8 provided at a symmetrical position with respect to the center of the opposite bottom surface 1 is provided in contact with the inner bottom portion 6 of the lower cylinder 102 so as to be rotatable independently of the lower cylinder 102, and the relationship of α + β = 90 degrees and α ≦ β is satisfied. Holds. Here, for convenience of explanation, it is assumed that α = β = 45 degrees.

With the above structure, when the diffusion switching plate 8 is set so that the diffusion switching blade 7 is located at the center of the ventilation hole 101 of the lower cylinder 102 as shown in FIG.
The ventilation holes 101 are divided by the diffusion switching blades 7, and the ventilation holes 101 having a central angle of 135 degrees are divided into a ventilation hole 101 having a central angle of 45 degrees, a diffusion switching blade 7 having a central angle of 45 degrees, and a ventilation hole 101 having a central angle of 45 degrees. Become. Since the two ventilation holes 101 of the lower cylinder 102 and the diffusion switching blades 7 of the diffusion switching plate 8 are symmetrical with respect to the center of the bottom surface 1 of the lower cylinder 102, the bottom surface 1 of the lower cylinder 102 has a central angle of 45 degrees. The ventilation holes 101 are evenly arranged, and the conditioned air is evenly introduced from the four ventilation holes 101. The introduced conditioned air passes through the grill 103 and is evenly swirled and diffused into the living room. That is, when the diffusion switching blade 7 having a central angle of β degrees is located at the center of the substantially fan-shaped vent hole 101 having a central angle of (2α + β) degrees, the substantially fan-shaped vent hole 101 having a central angle of (2α + β) degrees has a central angle of α. Is divided into ventilation holes 101, and α +
Since β = 90 degrees, the divided vent holes 101 having the central angle α degrees are evenly arranged at symmetrical positions at the center of the bottom surface 1,
Air-conditioned air is evenly introduced into the lower cylinder 102, and swirls and diffuses evenly into the living room.

On the other hand, as shown in FIG. 15, when the diffusion switching plate 8 is set so that the diffusion switching blade 7 is located at the end of the ventilation hole 101 of the lower cylinder 102, the ventilation hole 101 has a central angle of 45 degrees. Blocked by 7, central angle 9
It becomes the ventilation hole 101 of 0 degree. The two ventilation holes 101 of the lower cylinder 102 and the diffusion switching blade 7 of the diffusion switching plate 8 are the lower cylinder 1
Since it is symmetric with respect to the center of the bottom surface 1 of 02, the ventilation holes 101 having a central angle of 90 degrees are arranged symmetrically with respect to the center of the bottom surface 1 on the bottom surface 1 of the lower cylinder 102. The distribution of the wind velocity causes the swirling and diffusion of the airflow in the room to become flat. That is, the ventilation hole 10 of the lower cylinder 102.
When the diffusion switching plate 8 is set so that the diffusion switching blade 7 is located at the end of 1, the ventilation holes 101 have a central angle of 2α degrees, and the two ventilation holes 101 are arranged symmetrically with respect to the center of the bottom surface 1 and the grill 103 Distribution of wind speed just before
The swirling and diffusion of the air flow in the living room becomes flat.

The diffusion switching blade 7 is the ventilation hole 1 of the lower cylinder 102.
Since the central angle of the opening is constant at 90 degrees (2α degrees) anywhere in 01, even if the position of the diffusion switching plate 8 is changed, the pressure loss of the underfloor air conditioning outlet 105 is almost the same. It is possible to switch the diffusion characteristics of the blowout airflow between uniform diffusion and flat diffusion without the need.

As described above, according to the underfloor air-conditioning outlet of the seventh embodiment of the present invention, the pressure loss hardly changes even when the outlet airflow characteristics are switched. Therefore, the air conditioner blower is changed every time the airflow characteristics are changed. Driving adjustments may not be needed.

In this embodiment, a substantially fan-shaped ventilation hole is provided on the bottom surface of the lower cylinder. However, even if the shape of the ventilation hole is different, the wind speed immediately before the grill is located at a symmetrical position with respect to the center of the lower cylinder. Ventilation holes may be provided so that distribution is generated, and the effect is not changed.

In this embodiment, two ventilation holes are provided on the bottom surface of the lower cylinder, but the ventilation holes may be provided with ribs for reinforcement or the like so that the ventilation holes have three or more openings. Needless to say.

Next, the eighth embodiment of the present invention will be described with reference to FIG.
7, and will be described with reference to FIG. The same parts as those in the first and seventh embodiments are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the lower cylinder 10 of the grill 103
A diffusion switching plate driving motor 9 capable of switching the rotation direction and a rotation shaft 10 connecting the centers of the diffusion switching plate driving motor 9 and the diffusion switching plate 8 are provided in the central portion on the second side.

With the above-described structure, the diffusion switching plate driving motor 9 is continuously rotated counterclockwise to rotate the rotary shaft 10, and the diffusion switching plate 8 is rotationally moved. For example, the diffusion switching blade 7 of the diffusion switching plate 8 is the ventilation hole 101 of the lower cylinder 102.
If the initial state is at the end of the lower cylinder 102, the ventilation holes 101 having a central angle of 2α degrees are arranged symmetrically with respect to the center of the bottom surface 1 on the bottom surface 1 of the lower cylinder 102. The distribution of the wind velocity causes the swirling and diffusion of the airflow in the room to become flat.

Further, the rotating shaft 10 is rotated by α degrees by the diffusion switching plate driving motor 9 so that the diffusion switching blade 7 is moved to the lower cylinder 1.
When the diffusion switching plate 8 is set so as to be located at the center of the ventilation hole 101 of No. 02, the ventilation hole 101 of the lower cylinder 102 is divided by the diffusion switching vanes 7, and the bottom surface 1 of the lower cylinder 102 has a central angle of α degrees. Since the air holes 101 are evenly arranged, the conditioned air is evenly introduced from the four ventilation holes 101, and the introduced conditioned air passes through the grill 103 and is swirled and diffused evenly into the living room.

Further, when the diffusion switching plate driving motor 9 rotates the rotating shaft 10 by α degrees and the diffusion switching blade 7 reaches the end of the lower cylinder 102 on the side opposite to the initial state of the vent hole 101, the lower cylinder 102. Vent holes 101 having a central angle of 2α degrees are arranged symmetrically with respect to the center of the bottom surface 1, and the arrangement is a state rotated by 45 degrees from the initial state. Grill 10
A distribution occurs in the wind speed immediately before 3, and the swirling diffusion of the blowing airflow in the living room becomes a flat diffusion rotated by 45 degrees from the initial state.

The diffusion switching blade 7 is the ventilation hole 1 of the lower cylinder 102.
When it reaches the end portion on the side opposite to the initial state of 01, the rotation direction of the diffusion switching plate drive motor 9 is switched to rotate the position of the diffusion switching blade 7 to the initial state. Even if the rotation direction of the diffusion switching vanes 7 is opposite, if the diffusion switching vanes 7 and the ventilation holes 101 overlap in the same manner, the same diffusion characteristics of the blown airflow can be obtained, and the sum of the central angles of the opening portions of the ventilation holes 101 is always 2α. Is constant, that is, since the opening area is always constant, the change in pressure loss is extremely small.

When the diffusion switching plate 8 is continuously reciprocally rotated by the diffusion switching plate driving motor 9 via the rotary shaft 10, the overlap between the diffusion switching vanes 7 and the vent holes 101 is changed sequentially, and the diffusion characteristic in the living room is also changed. It is possible to change and continuously change the wind speed at the same point in the living room.

As described above, according to the outlet for underfloor air conditioning of the eighth embodiment of the present invention, the diffusion characteristic of the blown airflow is switched with almost no change in pressure loss, and the wind speed in the living room is changed to fluctuate wind. Can be realized without the need to adjust the operation of the blower of the air conditioner.

In this embodiment, a substantially fan-shaped ventilation hole is provided on the bottom surface of the lower cylinder. However, even if the shape of the ventilation hole is different, the wind speed immediately before the grill is located symmetrically with respect to the center of the lower cylinder. Ventilation holes may be provided so that distribution is generated, and the effect is not changed.

In this embodiment, two ventilation holes are provided on the bottom surface of the lower cylinder. However, ribs for reinforcement or the like may be provided in the ventilation hole to form three or more ventilation holes. Needless to say.

[0091]

As is apparent from the above-described embodiments, according to the present invention, at a location such as a partition or wall, the outlet is installed in a direction in which the outlet airflow does not hit the partition or wall. It is possible to provide an underfloor air-conditioning outlet that is effective in providing a comfortable air-conditioning environment that does not cause drafts.

Further, it is possible to provide an underfloor air conditioning outlet which is effective in that the wind speed at the same point in the living room fluctuates, diffusion in the living room is promoted, and deviation of the indoor temperature can be reduced.

Further, it is possible to provide an under-floor air-conditioning outlet which is effective in limiting the outlet area.

Further, it is possible to provide an underfloor air-conditioning outlet which is effective in changing the diffusion direction of the outlet airflow and adjusting the amount of outlet air.

Further, it is possible to provide an under-floor air-conditioning outlet having the effect of being able to match the load and layout by switching the diffusion characteristics of the outlet airflow between uniform diffusion and flat diffusion.

Further, since the diffusion characteristic of the blowing airflow can be changed alternately between the uniform diffusion and the flat diffusion, there is an effect that fluctuating wind having a change in the wind speed at the same point in the living room can be formed and comfort can be improved. An outlet for underfloor air conditioning can be provided.

Also, since the pressure loss hardly changes even when the blowout airflow characteristics are switched, it is possible to eliminate the need to adjust the operation of the blower of the air conditioner every time the airflow characteristics are changed. Can be provided.

Further, even if the diffusion characteristics of the blown airflow are switched, the pressure loss hardly changes, and the wind speed in the living room can be changed to realize the fluctuating air without the need to adjust the blower of the air conditioner. It is possible to provide an outlet for underfloor air conditioning.

[Brief description of drawings]

FIG. 1A is a plan view of an underfloor air conditioning outlet of a first embodiment of the present invention. FIG. 1B is a side sectional view of the same.

[Fig. 2] Same horizontal sectional view

FIG. 3 (a) is a view showing the same blowout state, and (b) is an explanatory view of the same vent hole.

FIG. 4A is a blowout diffusion characteristic diagram of the same section AA, and FIG. 4B is a blowout diffusion characteristic diagram of the same section B-B.

FIG. 5 is the same configuration diagram of the second embodiment.

FIG. 6 is the same configuration diagram of the third embodiment.

FIG. 7 is a horizontal sectional view of the same.

FIG. 8 is a horizontal sectional view of the same.

FIG. 9 is the same configuration diagram of the fourth embodiment.

FIG. 10 (a) is a view showing the same blowout state, and (b) is an explanatory view of the same vent hole.

FIG. 11 is a horizontal sectional view of the same fifth embodiment.

FIG. 12 (a) is a view showing the same blowout state, and (b) is a view showing the same blowout state.

FIG. 13 is the same configuration diagram of the sixth embodiment.

FIG. 14 is a horizontal sectional view of the same as the seventh embodiment.

FIG. 15 is a horizontal sectional view of the same.

16 (a) is a view showing the same blowout state, (b) is an explanatory view of the same vent hole, (c) is a view showing the same blowout state, (d) is an explanatory view of the same venthole, and (e) is a view showing the same blowout state. f) Illustration of the ventilation hole

FIG. 17 is a horizontal sectional view of the eighth embodiment.

FIG. 18 is a horizontal sectional view of the same.

FIG. 19 (a) is a plan view of a conventional underfloor air conditioning outlet (b) is a sectional view of the same side

FIG. 20 (a) is an explanatory view of the same blowing state. (B) is an explanatory view of the same blowing state.

[Explanation of symbols]

 2 Lower cylinder drive motor 3 Rotational shaft 4 Shielding blade 5 Shielding plate 7 Diffusion switching blade 8 Diffusion switching plate 9 Diffusion switching plate driving motor 10 Rotational shaft 101 Vent hole 102 Lower cylinder 103 Grill 104 Swirling blade 105 Underfloor air conditioning blowout mouth

Claims (8)

[Claims] 1. A lower cylinder having a plurality of ventilation holes provided symmetrically with respect to the center of the bottom surface, a grill located on the upper downstream side of the lower cylinder and blowing out conditioned air passing through the ventilation holes to a living room, Underfloor air conditioning outlet with swirl vanes that create swirl flow in the grill. 2. The underfloor according to claim 1, further comprising: a lower cylinder drive motor provided in the center of the lower cylinder of the grill, and a rotary shaft connecting the lower cylinder drive motor and the center of the lower cylinder. Air outlet for air conditioning. 3. A shield plate having a rotatable lower cylinder and a pair of shield blades having a size that closes a vent hole on the bottom surface of the lower cylinder in symmetrical positions with respect to the center of the bottom surface, on the inner bottom portion of the lower cylinder. The underfloor air-conditioning outlet according to claim 1, which is provided so as to be in contact with and independent of the lower cylinder. 4. The under-floor air-conditioning outlet according to claim 1, wherein the shielding plate is rotatably provided independently of the lower cylinder. 5. The lower cylinder having a plurality of ventilation holes evenly arranged symmetrically with respect to the center of the bottom surface of the lower cylinder, and the dimension for closing a quarter of the plurality of ventilation holes of the bottom surface. The underfloor air-conditioning system according to claim 1, wherein a diffusion switching plate, which is a pair of diffusion switching blades that are symmetrically combined with respect to the center of the bottom surface, is provided in contact with the inner bottom portion of the lower cylinder so as to be rotatable independently of the lower cylinder. Outlet. 6. The underfloor air-conditioning outlet according to claim 1, further comprising a rotary shaft connecting the diffusion switching plate driving motor and the center of the diffusion switching plate. 7. The lower cylinder having two fan-shaped vent holes having a central angle (2α + β) degrees symmetrically with respect to the center on the bottom surface of the lower cylinder, and a central angle movable in the vent hole. The diffusion switching plate having a pair of β-degree diffusion switching blades provided symmetrically with respect to the center of the bottom surface is provided in contact with the inner bottom of the lower cylinder so as to be rotatable independently of the lower cylinder, and α + β = 90 degrees. The outlet for underfloor air conditioning according to claim 1, wherein α ≦ β. 8. A diffusion switching plate driving motor capable of switching the rotation direction and a rotary shaft connecting the diffusion switching plate driving motor and the center of the diffusion switching plate are provided at the center of the lower cylinder side of the grill. The underfloor air conditioning outlet according to Item 1 or 7.