JP7560719B2 - Blow-out unit and air conditioner - Google Patents

Description

This relates to a blowing unit that is placed at the air outlet of the ventilation duct and blows air supplied through the ventilation duct into the room.

Patent document 1 (JP Patent Publication 2007-155309A) discloses a wind direction adjustment flap provided at the air outlet of an air conditioner. The wind direction adjustment flap in Patent document 1 is provided so that the angle can be adjusted relative to the rotation axis, and the direction of air blowing is adjusted by controlling a wind direction adjustment motor connected to the wind direction adjustment flap.

In Patent Document 1, the rotation axis of the airflow direction adjustment flap is located in the center of the airflow direction adjustment flap in a cross section perpendicular to the direction of the rotation axis. In this configuration, when the airflow direction adjustment flap is rotated, air blows out from both ends of the airflow direction adjustment flap in the cross section, making it difficult to adjust the airflow direction with high precision. The purpose of the present disclosure is to provide an air outlet with a simple structure and a high degree of freedom in adjusting the airflow direction.

The blowing unit of the first aspect is disposed at an air outlet of the ventilation passage to the room, and blows air supplied through the ventilation passage into the room. The blowing unit includes a plate member and a guide portion. The plate member is disposed at the air outlet and has a first side. The plate member rotates about a rotation axis separate from the first side, so that the first side moves from the air outlet into the ventilation passage. The guide portion is disposed at a position separate from the plate member at the air outlet, extends along the first side of the plate member, and has a first surface that is inclined from within the ventilation passage toward the first side. The plate member and the first surface of the guide portion change the first wind direction of the air from the ventilation passage toward the air outlet to a second wind direction, and the second wind direction changes as the plate member rotates.

The first aspect of the blowing unit has a simple structure and can change the direction of the air blown out from the air outlet.

The blowing unit of the second aspect is the blowing unit of the first aspect, and when the first side of the plate member is at the blowing outlet, the plate member has a second end that faces a first wall surface of the ventilation passage, different from the first end of the first side, and is perpendicular to the blowing outlet when viewed in a cross section from the plate member along the direction of the guide part, and the rotation axis passes through 1/3 of the length of the plate member from the second end and is positioned between a straight line perpendicular to the blowing outlet and the first wall surface.

The blowing unit of the third aspect is the blowing unit of the second aspect, and the plate member has a rotation axis. The rotation axis is disposed near the second end.

The blowing unit of the fourth aspect is any one of the blowing units of the first to third aspects, and the first surface of the guide portion is inclined so that air of the first wind direction hits it.

In the fifth aspect of the blowing unit, the first surface of the guide portion is inclined at an angle of 20° to 65° with respect to the first airflow direction.

A blowing unit according to a sixth aspect is the blowing unit according to the second or third aspect, wherein a length L between a first end and a second end of the plate member is, relative to a length W of the blowing port in a direction from the first end to the second end,
W/4<L<W/2
Satisfy the relationship.

The blowing unit of the seventh aspect is the blowing unit of any one of the first to sixth aspects, further comprising a chamber box that constitutes part of the ventilation passage. The chamber box is disposed above the ceiling or behind a side wall, and has an opening that constitutes the blowing outlet.

The blowing unit of the eighth aspect is a blowing unit of any one of the first to seventh aspects, further comprising a control unit that controls the angle of rotation of the plate member. The control unit changes the second air direction according to the angle of rotation of the plate member and the first surface of the guide portion.

The air conditioning device of the ninth aspect supplies conditioned air from an air passage to a room. The air conditioning device includes a blow-out unit of any one of the first to eighth aspects. The blow-out unit is disposed at an outlet of the air passage into the room.

1 is a perspective view of a blowing unit 1 of a first embodiment as viewed from below a ceiling. FIG. 1 is a vertical cross-sectional view of the blow-out unit 1 of the first embodiment when the rotation angle of the plate member 10 is 45° from the horizontal. FIG. 1 is a vertical cross-sectional view of the blow-out unit 1 of the first embodiment when the rotation angle of the plate member 10 is 80° from the horizontal. FIG. 11 is a diagram showing a simulation result of the airflow direction when the rotation angle of the plate member 10 is 45° from the horizontal in the blowing unit 1 of the first embodiment. FIG. 11 is a diagram showing a simulation result of the airflow direction when the rotation angle of the plate member 10 is 80° from the horizontal in the blowing unit 1 of the first embodiment. FIG. 1 is a vertical cross-sectional view showing a state where the plate member 10 of the blowing unit 1 of the first embodiment is at the blowing outlet P and a state where it is rotated 90° toward the ventilation passage S. Also, a diagram showing shape parameters of each member. FIG. 2 is a control block diagram of the blowing unit 1 according to the first embodiment. 10 is a vertical cross-sectional view showing a plate member 10p of a blowing unit 1a of modified example 1A. FIG. FIG. 11 is a vertical cross-sectional view of the blowing unit 1c of the modified example 1C . FIG. 13 is a perspective view of the blowing unit 1c of the modified example 1C, seen from below. 1 is a perspective view of an air outlet unit 1c of Modification 1C as viewed from under the ceiling. FIG. 11 is a vertical cross-sectional view of a blowing unit 1d of modified example 1D . FIG. 13 is a perspective view of a blowing unit 1d of modified example 1D as viewed from below. FIG. 13 is a perspective view showing an arrangement of an air outlet unit 1d of modified example 1D on a ceiling surface 2, as viewed from below. All four air outlets are open.

First Embodiment
(1) Configuration of the blow-out unit 1 The blow-out unit 1 is disposed at an air outlet P of the ventilation duct S leading to the room, and blows out air supplied through the ventilation duct S into the room 3. Here, the supplied air includes outside air or indoor air, either directly or after being heated, cooled, dehumidified, or humidified. The air outlet P is disposed on the ceiling or wall surface of the room. The blow-out unit 1 is disposed closer to the ventilation duct S than the air outlet P, above the ceiling or behind a side wall.

The blowing unit 1 will be described with reference to the drawings. Fig. 1 is a perspective view of the blowing unit 1 as seen from under the ceiling. Figs. 2A and 2B are vertical cross-sectional views of the blowing unit 1 installed above the ceiling. Figs. 3A and 3B are diagrams showing the results of simulating the air flow of the blowing unit 1 of Figs. 2A and 2B, respectively. Fig. 4 is a diagram showing the rotation angle range of the plate member 10 of the blowing unit 1. Fig. 5 is a control block diagram of the blowing unit 1.

The blowing unit 1 includes a plate member 10, a guide section 20, a chamber box 30, a panel 33, a control section 40, and a motor 41. The chamber box 30 is box-shaped and has an intake port connected to a duct and an outlet port for blowing out air. The configuration of the chamber box 30 will be described later. The blowing unit 1 is placed in the ceiling so that the outlet port of the chamber box 30 is located at an opening in the ceiling surface 2 of the room. The chamber box 30 forms a part of the ventilation passage S, and the outlet port of the chamber box 30 forms the outlet port P of the ventilation passage S. The plate member 10 and the guide section 20 are placed at the outlet port P. In this embodiment, the outlet port P is rectangular when viewed from the inside of the room. The panel 33 is placed on the ceiling surface from the inside of the room so as to cover the periphery of the outlet port P on the ceiling surface. The blowing unit 1 blows out air supplied through the chamber box 30 into the room 3 by rotating the plate member 10.

The plate member 10 is a rectangular plate having a predetermined thickness, and is arranged so that its surface is parallel to the ceiling surface. The surface of the plate member 10 facing the room is referred to as the first surface 101, and the surface facing the ventilation passage S is referred to as the second surface 102. The plate member 10 has a first side 11a that extends in the longitudinal direction and faces the guide portion 20, and a second side 12a that extends parallel to the first side 11a and faces the first wall surface 31 of the chamber box 30. The longitudinal length of the plate member 10 is approximately the same as the longitudinal length of the air outlet P.

The shape of the plate member 10 can be changed as appropriate according to the shape of the air outlet P. The plate member 10 may be square instead of rectangular. The corners of the plate member 10 may be chamfered. The thickness D of the plate member 10 may not be uniform. The thickness of the plate member 10 may decrease from the center of the plate member 10 toward the ends of the four sides.

4, in a cross section perpendicular to the air outlet P and along the direction from the plate member 10 to the guide section 20 (hereinafter referred to as cross section X), the end of the plate member 10 close to the guide section 20 is the first end 11, and the end close to the first wall surface 31 of the chamber box 30 is the second end 12. The first end 11 is located on the first side 11a of the plate member 10, and the second end 12 is located on the second side 12a of the plate member 10. The plate member 10 has a rotation shaft 15 on the second end 12 side. The distance between the rotation shaft 15 and the second end 12 is 1/3 or less of the distance (length L) between the first end 11 and the second end 12 of the plate member 10. More preferably, the distance between the rotation shaft 15 and the second end 12 is 1/2 or less of the thickness D of the plate member 10. This makes it possible to reduce the amount of air flowing between the plate member 10 and the first wall surface 31 of the chamber box 30 when the plate member 10 rotates. In addition, when the plate member 10 rotates, it is possible to prevent the second end 12 from protruding toward the indoor side beyond the air outlet P. As shown in FIG. 4, the plate member 10 can rotate 90° in the direction of the ventilation passage S around the rotation axis 15. The plate member 10 may be rotatable around the rotation axis 15 in the direction of the ventilation passage S from 0° to an angle of 45° or more and less than 90°. It is sufficient that the plate member 10 can rotate within a range that allows the wind direction to be adjusted.

The guide portion 20 is disposed opposite the plate member 10 at the air outlet P. The guide portion 20 is disposed adjacent to the first end 11 of the plate member 10 in the cross section X. The guide portion 20 has a first surface 21 facing the ventilation passage S, a second surface 22 facing the room, a third surface 23 facing the second wall surface 32 of the chamber box 30, and a fourth surface 24 facing the first end 11 of the plate member 10 in the cross section X. Specifically, the first surface 21 extends from the first end adjacent to the first end 11 of the plate member 10 to the second end. The second end is located on the opposite side to the indoor side of the ventilation passage S from the first end, and on the opposite side to the first end 11 of the plate member 10 from the first end. In other words, the first surface 21 is inclined from the second wall surface 32 side toward the plate member 10 side, and from the ventilation passage S side toward the indoor side. In the cross-sectional view of FIG. 4, the second surface 22 is inclined linearly (flatly), but may be inclined curvedly (curved surface). The second surface 22 is arranged parallel to the ceiling surface 2, and when the plate member 10 is arranged at the air outlet P, the first surface 101 on the indoor side of the plate member 10 and the second surface 22 are arranged on the same plane. The second surface 22 is rectangular when viewed from the indoor side. The second surface 22 has a first side 221 that extends in the longitudinal direction and parallel to the first side 11a of the plate member 10, and a second side 222 that extends parallel to the first side 221 and faces the second wall surface 32 of the chamber box 30. The longitudinal length of the second surface 22 may be approximately the same as the longitudinal length of the air outlet P. The third surface 23 is in contact with the second wall surface 32 so that air does not flow between the third surface 23 and the second wall surface 32 of the chamber box 30. The fourth surface 24 is sandwiched between the first surface 21 and the second surface 22 and is parallel to the third surface 23.

The shape of the second surface 22 of the guide portion 20 can be changed as appropriate according to the shape of the air outlet P. The second surface 22 may be square instead of rectangular. The corners of the second surface 22 may be chamfered.

In FIG. 4, the second surface 22 of the guide portion 20 and the first surface 101 of the plate member 10 facing the room are arranged parallel to one another on the same horizontal plane when the plate member 10 is placed at the air outlet P, but either the plate member 10 or the second surface 22 of the guide portion 20 may be placed on the ventilation passage S side.

As shown in FIG. 4, the plate member 10 can be rotated 90° from the state where it is placed at the air outlet P until the first wall surface 31 and the second surface 102 are parallel. The air direction and air volume change depending on the rotation angle of the plate member 10. When the plate member 10 in FIG. 4 is in the state shown by the solid line, in other words, when the plate member 10 is at the air outlet P, the air outlet P is closed by the plate member 10 and the guide portion 20.

The chamber box 30 is box-shaped and has an intake port connected to a duct and an outlet port for blowing out air. The intake port may be connected to an air processing unit such as a ventilation device or an air conditioning device via a duct. The outlet port has approximately the same shape as the opening in the ceiling surface. The chamber box 30 has four walls extending perpendicularly to the outlet port P. The ends of the four walls form the outlet port P. The four walls include a first wall surface 31 on the plate member 10 side and a second wall surface 32 on the guide section 20 side in the cross section X. The intake port of the chamber box 30 may be formed in the upper part of the chamber box 30 or may be formed in the wall surface. The plate member 10 and the guide section 20 are arranged at the outlet port.

The blowing unit 1 further includes a panel 33. The panel 33 is arranged on the ceiling surface 2 from the indoor side so as to cover the periphery of the blowing port P on the ceiling surface 2. The panel 33 is a frame having a predetermined thickness, and extends from the ceiling surface 2 to a part of the inside of the blowing port P. In the cross section X, the panel 33 covers a part of the second end 12 side of the plate member 10 from the ceiling surface 2, and covers a part of the second surface 22 of the guide portion 20 from the ceiling surface 2. The indoor surface of the panel 33 is located on the indoor side of the first surface 101 of the plate member 10 and the second surface 22 of the guide portion 20. The indoor surface of the panel 33 and the first surface 101 of the plate member 10 and the second surface 22 of the guide portion 20 may be arranged in parallel on the same plane. The panel 33 may cover only the ceiling surface 2, but by extending to a portion of the inside of the air outlet P, it is possible to prevent air from blowing out from between the second end 12 of the plate member 10 and the first wall surface 31 of the chamber box 30.

The motor 41 rotates the plate member 10 around the rotation axis 15. The motor 41 may be a stepping motor. The motor 41 may be disposed inside or outside the chamber box 30.

The control unit 40 controls the motor 41. The control unit 40 is a computer. The control unit 40 includes a processor and a memory unit. The control unit 40 may be a microcomputer. There is no particular limitation on where the control unit 40 is located. The control unit 40 may control multiple blowing units 1 simultaneously.

The control unit 40 may perform control in response to instructions from a remote controller operated by the user.

(2) Airflow direction adjustment In the blowing unit 1, the plate member 10 and the first surface 21 of the guide portion 20 change the first airflow direction of the air flowing from the ventilation passage S toward the air outlet P to a second airflow direction. When the plate member 10 is arranged at the air outlet P, the air outlet P is closed by the plate member 10 and the guide portion 20. When the plate member 10 rotates and the first end portion 11 of the plate member 10 moves from the air outlet P to the ventilation passage S, the air outlet P opens and air flows. The air in the ventilation passage S flows between the first surface 101 of the plate member 10 and the first surface 21 of the guide portion 20 and is blown out from the air outlet P into the room 3. In the ventilation passage S, the air flow is directed in a first airflow direction F1 parallel to the first wall surface 31 or the second wall surface 32. By passing between the first surface 101 of the plate member 10 and the first surface 21 of the guide portion 20, the airflow direction changes to the second airflow direction F21, F22. The direction of the second airflow direction depends on the inclination angle of the first surface 21 of the guide portion 20 and the rotation angle of the plate member 10. The inclination angle of the first surface 21 of the guide portion 20 is designed and fixed in advance in each blowing unit 1. The inclination angle of the first surface 21 of the guide portion 20 is preferably, for example, 20° or more and 65° or less with respect to the first airflow direction. In addition, the inclination angle of the first surface 21 may be 25° or more and 70° or less, more preferably 40° or more and 55° or less, from the horizontal. The rotation angle of the plate member 10 changes when the motor 41 rotates the plate member 10.

The second airflow direction changes depending on the rotation angle of the plate member 10. A simulation was performed to investigate how the airflow direction of the air blown out from the air outlet P into the room 3 changes when the rotation angle of the plate member 10 of the blowing unit 1 is changed. The simulation conditions were that the entire system was an isothermal field and the blowing air volume was 10 ^m3 /min. The simulation was performed for the rotation angles of the plate member 10 of the blowing unit 1 shown in Figures 2A and 2B. The results of the simulation are shown in Figures 3A and 3B, respectively.

In Figures 2A, 3A, 2B, and 3B, the inclination angle of the first surface 21 of the guide portion 20 is commonly 35° from the horizontal. As shown in Figures 2A and 3A, when the rotation angle of the plate member 10 is 45° from the horizontal, the second airflow direction F21 is 40° from the horizontal. Similarly, as shown in Figures 2B and 3B, when the rotation angle of the plate member 10 is 80° from the horizontal, the second airflow direction F22 is 70° from the horizontal. From the simulation results, in the blowing unit 1, the larger the rotation angle of the plate member 10 from the horizontal, the smaller the angle change from the first airflow direction F1 (vertical direction) to the second airflow directions F21 and F22.

(3) Shape parameters of blow-out unit 1 The shape parameters of the blow-out unit 1 will be described below. Fig. 4 is a diagram for explaining the shape parameters in a vertical cross section (cross section X) of the blow-out unit 1.

It is preferable that the length L between the first end 11 and the second end 12 of the plate member 10 satisfies the following condition: It is preferable that the length W of the air outlet P in the direction from the first end 11 to the second end 12 (the width of the air passage, the distance between the first wall surface 31 and the second wall surface 32 in FIG. 4 ) satisfies the condition of formula (1).
W/4<L<W/2 (1)

In other words, it is preferable that the length L of the plate member 10 is smaller than the length W-L of the guide portion 20 at the air outlet P.

It is also preferable that the thickness D of the plate member 10 satisfies the condition of formula (2).
0<D<W/8 (2)

In other words, by keeping the thickness D of the plate member 10 within a certain range, the wind direction can be controlled more smoothly.

Next, it is preferable that the length H1 of the fourth surface 24 of the guide portion 20 satisfies the formula (3).
0≦H ₁ <W/8 (3)

In other words, by setting the length _H1 of the fourth surface 24 within a certain range, the airflow direction can be controlled more smoothly.

Moreover, the distance (slope height H ₂ ) of the first surface 21 of the guide portion 20 along the first airflow direction F1 satisfies formula (4).
0≦H ₂ <W (4)

In other words, by setting the inclination angle of the first surface of the guide section 20 within a certain range, the wind direction can be controlled more smoothly.

(4) Features (5-1)
The blowing unit 1 of this embodiment is disposed at the blowing port P of the ventilation passage S to the room 3, and blows out the air supplied through the ventilation passage S into the room 3. The blowing unit 1 has a plate member 10 and a guide portion 20. The plate member 10 rotates about a rotation axis 15, and moves from a state disposed at the blowing port P to a state inside the ventilation passage S. The guide portion 20 has a first surface 21 facing the ventilation passage S. The first surface 21 is inclined from the second wall surface 32 side toward the first wall surface 31 side, and from the ventilation passage S side toward the room inside. The blowing unit 1 changes the first wind direction F1 of the air heading from the ventilation passage S toward the blowing port P to the second wind direction F21, F22 according to the rotation angle of the plate member 10 and the inclination angle of the first surface 21 of the guide portion 20. Furthermore, the blowing unit 1 changes the second wind direction blown out from the blowing port P by changing the rotation angle of the plate member 10.

With this configuration, the blowing unit 1 of this embodiment can easily control the air flow direction with a simple configuration.

(5-2)
The plate member 10 is substantially rectangular, and as shown in FIG. 4, when it is disposed at the air outlet P, it has a first end 11 (first side 11a) on the guide portion 20 side, a second end 12 on the first wall surface 31 side, and a rotation shaft 15. The rotation shaft 15 is closer to the second end 12 than the first end 11. The distance between the rotation shaft 15 and the second end 12 is 1/3 or less of the length L of the plate member (the distance between the first end 11 and the second end 12). In other words, the rotation shaft 15 is disposed between the first wall surface 31 and a straight line that passes through a portion of 1/3 of the length L of the plate member 10 from the second end 12 and is perpendicular to the air outlet P.

The air outlet P has one air outlet between the plate member 10 and the guide portion 20. No air outlet is formed between the first wall surface 31 and the plate member 10, or between the guide portion 20 and the second wall surface 32.

The air blown out passes between the first surface 101 of the plate member 10 and the first surface 21 of the guide portion 20 and is blown out into the room 3.

With this configuration, the blowing unit 1 of this embodiment can easily control the air flow direction with a simple configuration.

(5-3)
The first surface 21 of the guide portion 20 is inclined so that air in a first airflow direction F1 parallel to the first wall surface 31 and the second wall surface 32 of the ventilation passage S hits the first surface 21. The inclination angle of the first surface 21 is 20° or more and 65° or less with respect to the first airflow direction F1.

As the rotation angle of the plate member 10 from the air outlet P (horizontal) side to the ventilation passage S side increases, the magnitude of the angle change from the first airflow direction F1 to the second direction decreases.

(5-4)
The length L of the plate member 10 in this embodiment satisfies the relationship W/4<L<W/2 with respect to the length W (width of the airflow rate) of the air outlet P in the direction from the first end 11 to the second end 12. The length L of the plate member 10 is shorter than the length W-L of the guide portion 20.

(5-5)
The blow-out unit 1 further includes a chamber box 30 that constitutes a part of the ventilation passage S. The chamber box 30 is arranged behind the ceiling or a side wall. The chamber box 30 has a first wall surface 31 on the plate member 10 side and a second wall surface 32 on the guide section 20 side. An opening that constitutes the blow-out port P is formed in the chamber box 30. The plate member 10 and the guide section 20 are arranged in the opening.

(6) Modifications (6-1) Modification 1A
In the blowing unit 1 of the first embodiment, the rotation axis 15 of the plate member 10 may be outside the plate member 10. The rotation axis 15 does not have to be between the extended plane of the first surface 101 and the extended plane of the second surface 102 of the plate member 10.

The configuration of the blowing unit 1a of the modified example 1A is the same as that of the blowing unit 1 of the first embodiment, except that the rotating shaft 15a is outside the plate member 10p and the first surface 21 and the second surface 22 of the guide portion 20p are in contact with each other, as shown in FIG. 6.

In the blowing unit 1a of the modified example 1A, in the cross-sectional view of FIG. 6, the plate member 10p has a first end 11 of the first side and a second end 12 facing the first wall surface 31 of the ventilation passage S. A rotating metal fitting is fixed to the plate member 10p and the first wall surface 31, and the plate member 10p rotates around the rotating metal fitting's rotating shaft 15a. The rotating metal fitting's rotating shaft 15a can be rotated by a motor or manually.

(6-2) Modification 1B
The blowing unit of the modified example 1B has the same configuration as the blowing unit 1 of the first embodiment, except that it does not have a motor and a control unit. The blowing unit 1 of the modified example 1B is usually used in the same state of rotation angle of the plate member 10. When the rotation angle is to be changed, it is changed manually.

The blowing unit of variant 1B is used in situations where there is no need to constantly change the air direction.

(6-3) Modification 1C
In the blowing unit 1 of the first embodiment, the air blowing portion of the blowing port P is formed in one place between the plate member 10 and the guide portion 20, but in the modified example 1C, it is formed in two places.

As shown in Figures 7A to 7C, the blowing unit 1c of the modified example 1C has two plate members 10a and 10b and a guide portion 20a arranged at the blowing port P of the chamber box 30a. The plate members 10a and 10b are arranged so that their longitudinal directions are parallel to each other, sandwiching the guide portion 20a. A first blowing port P1, which is an air blowing portion, is formed between the plate member 10a and the guide portion 20a, and a second blowing port P2 is formed between the plate member 10b and the guide portion 20a. The guide portion 20a has a first surface 21a on the plate member 10a side and a first surface 21b on the plate member 10b side. The guide portion 20a is fixed to the chamber box 30a at both ends in the longitudinal direction. In Figures 7A and 7B, the first surface 21a and the first surface 21b are curved surfaces recessed from the ventilation passage S side toward the room 3 side, but they may also be flat surfaces. The first surface 21a is inclined from the ventilation passage S side to the room 3 side in a direction approaching the plate member 10a from the center part of the guide part 20a in a cross section (hereinafter, cross section Y) perpendicular to the air outlet P and along the direction from the plate member 10a to the plate member 10b. The first surface 21b is inclined from the ventilation passage S side to the room 3 side in a direction approaching the plate member 10b from the center part of the guide part 20a in the cross section Y. The center part of the guide part 20a in the cross section Y, in other words, the part between the first surface 21a and the first surface 21b, protrudes from the air outlets P1 and P2 side to the ventilation passage S side. The plate member 10a and the plate member 10b rotate in the opposite direction from the air outlet P toward the ventilation passage S. The configuration of the blowing unit 1c other than the above-mentioned configuration is the same as that of the blowing unit 1 of the first embodiment.

The air supplied to the ventilation duct S flows in the first wind direction F1 inside the ventilation duct S, branches into the first air outlet P1 and the second air outlet P2, and is blown out into the room 3. At the first air outlet P1, the second air direction F23a, which is the blowing direction, changes due to the rotation of the plate member 10a. As the rotation angle of the plate member 10a increases from the horizontal direction, the change in angle of the second air direction F23a from the first air direction F1 becomes smaller. In other words, the angle of the second air direction F23a from the horizontal becomes larger. Similarly, at the second air outlet P2, the second air direction F23b, which is the blowing direction, changes due to the rotation of the plate member 10b. As the rotation angle increases from the horizontal direction, the change in angle of the second air direction F23b from the first air direction F1 becomes smaller. In other words, the angle of the second air direction F23b from the horizontal becomes larger.

In the blowing unit 1c of the modified example 1C, the second airflow direction F23a and the second airflow direction F23b can be controlled independently. In other words, the rotation angles of the plate members 10a and 10b can be controlled independently. In addition, the blowing outlets P1 and P2 can both be opened, both be closed, or one of the blowing outlets P1 and P2 can be opened and the other closed.

(6-4) Modification 1D
In the blowing unit 1 of the first embodiment, the air blowing portion of the blowing port P is formed at one location between the plate member 10 and the guide portion 20, but in the modified example 1D, four locations are formed.

As shown in Figures 8A to 8C, the blowing unit 1d of the modified example 1D has four plate members 10a to 10d and a guide portion 20b arranged at the blowing port P of the chamber box 30b. The plate members 10a and 10c are arranged so that their longitudinal directions are parallel to each other, sandwiching the guide portion 20b. The plate members 10b and 10d are arranged so that their longitudinal directions are parallel to each other, sandwiching the guide portion 20b. The plate members 10a and 10c are arranged so that their longitudinal directions are perpendicular to the longitudinal directions of the plate members 10b and 10d. When the blowing unit 1d is viewed from the indoor side, the plate members 10a to 10d are arranged so as to surround the four sides of the second surface of the rectangular guide portion 20b. Four blowing ports P1 to P4, which are the air blowing portions, are formed between the plate members 10a to 10d and the guide portion 20b. The guide portion 20b has first surfaces 21a to 21d on the plate members 10a to 10d sides, respectively. The first surfaces 21a to 21d are inclined from the ventilation passage S side to the room 3 side in a direction approaching the plate member 10a from the center part of the guide portion 20b. The center part of the guide portion 20b may be fixed to the upper surface of the inside of the chamber box 30b via a support member. In FIG. 8A, the first surfaces 21a to 21d are flat, but may be curved surfaces recessed from the ventilation passage S side to the room 3 side. The configuration of the blowing unit 1d other than the above-mentioned configuration is the same as that of the blowing unit 1 of the first embodiment.

In the blowing unit 1d of the modified example 1D, air supplied to the ventilation duct S flows in the first airflow direction F1 inside the ventilation duct S and branches into the air outlets P1 to P4 before being blown out into the room 3. In the air outlets P1 to P4, the second airflow direction F23a, which is the blowing direction, changes due to the rotation of the plate members 10a to 10d. As the rotation angle increases from the horizontal direction, the change in angle of the second airflow directions F24a to F24d from the first airflow direction F1 decreases. In other words, the angle of the second airflow directions F24a to F24d from the horizontal increases.

In the blowing unit 1d of the modified example 1D, the second air direction, which is the direction in which air is blown into the room from the blowing ports P1 to P4, can be controlled independently for each of the blowing ports P1 to P4. In other words, the rotation angles of the plate members 10a to 10d can be controlled independently. In addition, the blowing ports P1 to P4 can be all open, all closed, or some of the blowing ports P1 to P4 can be open and some closed.

(6-5) Modification 1E
The blow-out unit 1e of the modified example 1E is a part of an air conditioning device. The air conditioning device performs air conditioning such as heating, cooling, dehumidification, and humidification in a room. In addition to the blow-out unit, the air conditioning device includes a fan, a heat exchanger, and the like. The blow-out unit 1e does not have a chamber box 30, unlike the blow-out unit 1 of the first embodiment, because the ventilation passage S is formed inside the air conditioning device. The blow-out port P is an air outlet of the air conditioning device. The blow-out unit 1e does not need to have a panel 33. The configuration of the blow-out unit 1e other than the configuration described above is the same as that of the blow-out unit 1 of the first embodiment.

Although the embodiments of the present disclosure have been described above, it will be understood that various changes in form and details are possible without departing from the spirit and scope of the present disclosure as set forth in the claims.

Reference Signs List 1, 1a, 1c, 1d Air outlet unit 2 Ceiling surface 3 Indoor space 10 Plate member 11a First side 11 First end 12 Second end 15 Rotating shaft 20 Guide portion 21 First surface 30 Chamber box 31 First wall surface 32 Second wall surface P, P1, P2 Air outlet S Air passage F1 First airflow directions F21, F22 Second airflow direction L Length of plate member D Thickness of plate member W Width of air passage (length of air outlet)
L-W: Width of the guide

JP 2007-155309 A

Claims (9)

A blow-out unit (1) is disposed at an air outlet (P) of an air passage (S) into a room, and blows air supplied through the air passage into the room,
The air outlet (P) has two opposing sides,
a plate member (10) that is disposed on one of two opposing sides of the air outlet (P), has a first side (11a), and rotates about a rotation axis (15) away from the first side, so that the first side moves from the air outlet into the ventilation passage;
a guide portion (20) disposed on the other of the two opposing sides of the air outlet, extending along the first side of the plate member, and having a first surface (21) inclined from within the air passage toward the first side;
Equipped with
The plate member and the first surface of the guide portion change a first wind direction of air flowing from the ventilation passage toward the air outlet port to a second wind direction,
The second air direction is changed by rotating the plate member. When the first side of the plate member is at the air outlet, a cross section perpendicular to the air outlet and along a direction of the guide portion from the plate member is viewed,
The plate member has a second end (12) facing a first wall surface (31) of the ventilation passage, the second end (12) being different from a first end (11) of the first side,
The rotation axis is disposed between a straight line passing through a portion of 1/3 of the length of the plate member from the second end and perpendicular to the air outlet and the first wall surface.
The blowing unit according to claim 1. The plate member has the rotation shaft,
The rotation axis is disposed adjacent the second end.
The blowing unit according to claim 2. The first surface of the guide portion is inclined so that air in the first wind direction hits the first surface.
The blowing unit according to any one of claims 1 to 3. The first surface of the guide portion is inclined at an angle of 20° to 65° with respect to the first wind direction.
The blowing unit according to any one of claims 1 to 3. The length L between the first end and the second end of the plate member is, relative to the length W of the air outlet in the direction from the first end to the second end,
W/4<L<W/2
Satisfy the relationship
The blowing unit according to claim 2 or 3. Further comprising a chamber box constituting a part of the ventilation passage,
The chamber box is arranged in the ceiling or behind the side wall and has an opening that constitutes the air outlet.
The blowing unit according to any one of claims 1 to 6. A control unit (40) for controlling the angle of rotation of the plate member is further provided,
The control unit changes the second air direction based on a rotation angle of the plate member and the first surface of the guide portion.
The blowing unit according to any one of claims 1 to 7. An air conditioning apparatus that supplies conditioned air from an air duct to a room,
The blow-out unit according to any one of claims 1 to 8 is disposed at an outlet of the ventilation passage into the room.
Air conditioning equipment.

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