JP2022029351A - Air conditioning discharge port unit - Google Patents

Abstract

To provide an air conditioning discharge port unit that can restrain occurrence of condensation in a discharge port at the time of cooling, and heats the neighborhood of a floor surface with good air conditioning efficiency at the time of heating.SOLUTION: An air conditioning discharge port unit 10 comprises a cylindrical duct 12 comprising a discharge port 17 at one end, a first louver 21 provided at the one end of the duct 12, a first discharge part 17a defined inside the first louver 21 in the discharge port 17, a second discharge part 17b defined outside the first louver 21 in the discharge port 17, and a first split flow plate 31 for splitting an air flow Af in the duct 12 into a first split flow Af1 toward the first discharge part 17a and a second split flow Af2 toward second discharge part 17b. First conditioned air Ca1 including the first split flow Af1 is discharged in a direction along an axis A of the duct 12 from the first discharge part 17a. Second conditioned air Ca2 including the second split flow Af2 is discharged so as to be inclined with respect to the axis A of the duct 12 from the second discharge part 17b. The wind speed of the first conditioned air Ca1 is higher than the wind speed of the second conditioned air Ca2.SELECTED DRAWING: Figure 1A

Description

The present invention relates to an air conditioning outlet unit.

Patent Document 1 discloses an air outlet unit used in an air conditioner for heating and cooling the interior of a building. The air outlet unit is attached to the ceiling of the room and includes two louvers that are inclined outward from the outside to the room and a single airflow diffusion member that extends along the ceiling. As a result, the outlet of the outlet unit has a first outlet located between the airflow diffusion member and the first louver, a second outlet located between the two louvers, and a second louver. It is defined as a third outlet located between the outer wall and the outer wall.

Further, in Patent Document 1, the throttle ratios on the inlet side and the outlet side of the louver are adjusted so that the conditioned air is blown out along the ceiling. The adjusted aperture ratio is the first aperture ratio, which is the ratio of the opening area of the first outlet to the opening area of the outdoor end of the first louver, with respect to the opening area between the outdoor ends of each of the two louvers. The second drawing ratio, which is the ratio of the opening area of the second blowing portion, and the third drawing ratio, which is the ratio of the opening area of the third blowing portion to the opening area between the outdoor end of the second louver and the outer peripheral wall. Is. By adjusting these throttle ratios, the conditioned air blown into the room prevents the indoor air from coming into contact with the airflow diffusion member and the louver, and suppresses the occurrence of dew condensation on the airflow diffusion member and the louver during cooling.

Japanese Patent No. 4726404

In the air-conditioning outlet unit of Patent Document 1, the harmonious air can be blown out only in the direction along the ceiling due to the arrangement of the airflow diffusion member. Therefore, it takes time to warm the vicinity of the floor surface of the room during heating where conditioned air (warm air) tends to accumulate on the ceiling. That is, the air-conditioning outlet unit of Reference 1 can suppress the occurrence of dew condensation at the outlet during cooling, but the air-conditioning efficiency for warming the vicinity of the floor surface during heating is poor.

An object of the present invention is to provide an air-conditioning outlet unit capable of suppressing the generation of dew condensation at the air-conditioning outlet during cooling and warming the vicinity of the floor surface with good air-conditioning efficiency during heating.

One aspect of the present invention is a tubular duct having an air outlet at one end and allowing an air-conditioned air flow to flow toward the air outlet, and a tubular duct provided at the one end of the duct from the upstream side to the downstream side of the air conditioner. A first louver composed of a tubular body extending outward toward, a first outlet defined inside the first louver of the outlet, and a first louver defined outside the first louver of the outlet. It consists of a second outlet and a tubular body provided in the duct so as to be located on the upstream side of the air flow from the first louver and spread outward from the upstream side to the downstream side of the air flow. The first conditioned air including the first shunt is provided with a first shunt plate that divides the airflow into a first shunt toward the first outlet and a second shunt toward the second outlet. , The second conditioned air including the second divergence, which is blown out from the first outlet in the direction along the axis of the duct, comes from the second outlet at a first outlet angle depending on the inclination of the first louver. An air-conditioning outlet unit is provided that blows out at an angle with respect to the axis of the duct, and the wind speed of the first harmonized air is faster than the wind speed of the second harmonized air.

In this embodiment, since the first conditioned air is blown out from the first blowing portion in the direction along the axis of the duct, the vicinity of the floor surface of the room can be quickly warmed during heating, and the vicinity of the floor surface of the room is quickly cooled during cooling. be able to. In addition, since the first diversion plate has a cylindrical shape that spreads outward from the upstream side to the downstream side of the airflow, the wind speed of the second diversion in the duct is higher than the wind speed of the first diversion due to the resistance when the airflow collides. Will also be late. Furthermore, since the first louver has a cylindrical shape that spreads outward from the upstream side to the downstream side of the airflow, the wind speed of the second conditioned air including the second divergent flow at the outlet due to the resistance when the second shunt flow collides. Is slower than the wind speed of the first conditioned air including the first shunt. Due to this speed difference, the first conditioned air attracts the second conditioned air, and the second conditioned air can cover the downstream end of the first louver. As a result, it is possible to prevent the indoor air containing a large amount of water from coming into contact with the first louver, so that it is possible to prevent the occurrence of dew condensation due to the indoor air coming into contact with the first louver and lowering the temperature during cooling.

In the air-conditioning outlet unit of the present invention, the generation of dew condensation at the air-conditioning outlet can be suppressed during cooling, and the vicinity of the floor surface can be warmed with good air-conditioning efficiency during heating.

Sectional drawing of the air-conditioning outlet unit which concerns on embodiment of this invention. An enlarged sectional view of a portion B of FIG. 1A. An exploded perspective view of the air conditioning outlet unit as seen from above. An exploded perspective view of the air conditioning outlet unit as viewed from below. Top view of FIG. 1A. Bottom view of FIG. 1A. The schematic diagram which shows the experimental method.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1A shows an air-conditioning outlet unit 10 according to an embodiment of the present invention. The air outlet unit 10 is attached to the ceiling 1 of the room of the building and is connected to the main duct 5 (see FIG. 5) of the air conditioning equipment for heating and cooling the room.

The air outlet unit 10 includes a duct 12 connected to the main duct 5, a louver set 20 attached to the air outlet 17 at one end of the duct 12, and a diffusion member 30 installed in the duct 12. The airflow Af of the conditioned air Ca supplied from the main duct 5 into the duct 12 is diffused by the diffusion member 30 and flows toward the outlet 17, and is blown into the room by the louver set 20 at predetermined blowing angles θ1 to θ3.

As shown in FIGS. 1A, 2A and 2B, the duct 12 has a tubular shape including a connecting portion 13, an expanding portion 14, and a cover 16 and having an axis A extending linearly as a whole. The connecting portion 13 and the expanding portion 14 are resin parts having an integral structure, and the cover 16 is a resin part separate from the connecting portion 13 and the expanding portion 14.

The connecting portion 13 has a cylindrical shape having a diameter that can be connected to the main duct 5. A diversion portion 13a is provided at the end portion on the expansion portion 14 side of the connection portion 13, that is, the downstream end portion of the connection portion 13 in the direction in which the conditioned air Ca flows (air flow Af). The flow dividing portion 13a is provided with a mounting hole 13b for mounting the diffusion member 30. The mounting holes 13b are non-penetrating recesses that are recessed outward in the radial direction, and a plurality of mounting holes 13b are provided at intervals in the circumferential direction (four locations in the present embodiment).

The expansion portion 14 is formed between the diversion portion 13a and the air outlet 17, and has a quadrangular pyramid shape in which the opening area gradually increases from the diversion portion 13a toward the air outlet 17. More specifically, the expansion portion 14 is connected to the circular diversion portion 13a, and the opening 14a located at the downstream end of the airflow Af of the conditioned air Ca is expanded so as to form a square shape. .. The total length D1 of the lower end edge of the four walls 14b defining the opening 14a is longer than the inner diameter R1 of the diversion portion 13a, and the opening area of the opening 14a is larger than the opening area of the diversion portion 13a.

The center of curvature of each wall 14b constituting the expansion portion 14 is located in the duct 12 and below the lower end of the wall 14b (on the side of the air outlet 17), and is curved with a predetermined radius of curvature. Referring to FIG. 1A, the inclination angle of the wall 14b with respect to the axis A of the duct 12 is α. The inclination angle α of the wall 14b is defined as an angle formed by the straight line L1 passing through the upper end and the lower end of the inner side surface located on the axis A side of the wall 14b and the axis A. The wall 14b may be flat without being curved. The tilt angle α will be described in detail later.

A mounting portion 15 for mounting the cover 16 is provided at the downstream end portion of the expansion portion 14. Referring to FIG. 3, the mounting portion 15 has a square shape when viewed from the direction in which the axis A extends, and protrudes outward from the expansion portion 14 in the radial direction. Positioning recesses 15a are provided in the center of each of the four outer surfaces of the mounting portion 15. On both sides of the positioning recess 15a, a pressure contact portion 15b bulging in an arc shape and a slit 15c formed of an arcuate groove are provided, respectively. The slit 15c makes the pressure contact portion 15b elastically deformable. Referring to FIG. 1B, a locking portion 15d for locking the cover 16 is provided on the outer surface of the mounting portion 15.

As shown in FIGS. 1A and 1B, the cover 16 is provided to attach the louver set 20 to the duct 12 in a detachable manner. The cover 16 includes a square cylindrical outer frame portion 16a that surrounds the outer periphery of the mounting portion 15, a quadrangular end wall portion 16 g connected to the lower end of the outer frame portion 16a, and an air outlet 17 formed in the end wall portion 16 g. To prepare for.

The outer frame portion 16a is composed of four wall portions 16b. Each wall portion 16b includes a first portion 16c extending along the axis A and a second portion 16d inclined inward (toward the axis A side) from the first portion 16c toward the room. By attaching the cover 16 to the duct 12, the pressure contact portion 15b of the attachment portion 15 is pressure-welded to the first portion 16c. Two of the four wall portions 16b facing each other are formed with positioning convex portions 16e that fit into the positioning recesses 15a. Further, each of the wall portions 16b is provided with a locking claw 16f for locking to the locking portion 15d.

The end wall portion 16g is connected to the lower end of the outer frame portion 16a (second portion 16d) and extends in a direction orthogonal to the axis A with the cover 16 attached to the duct 12. The end wall portion 16g is located at a distance from the mounting portion 15, and a sealing member 18 for preventing leakage of the conditioned air Ca is arranged between the end wall portion 16g and the mounting portion 15.

The air outlet 17 is a rectangular hole opened with a dimension D2 larger than the opening 14a. That is, the opening area of the outlet 17 is larger than either the opening area of the opening 14a or the opening area of the diversion portion 13a. With the cover 16 attached to the duct 12, the center of the outlet 17 is located on the axis A. A locking frame 16h for attaching the louver set 20 is provided in the air outlet 17. The locking frame 16h projects from the end wall portion 16g toward the axis A. The inner edge of the locking frame 16h and the inner edge of the opening 14a substantially coincide with each other in the vertical direction in which the axis A extends.

As shown in FIGS. 1A and 4, the louver set 20 is attached to the outlet 17 of the cover 16 located at one end of the duct 12. The louver set 20 includes two louvers 21 and 22 having different sizes, and guides the conditioned air Ca1 to Ca3 to be blown out in a predetermined direction in the room.

With the louver set 20, the outlet 17 is located outside the first outlet 17a located inside the first louver 21, the second outlet 17b located between the two louvers 21 and 22, and the second louver 22. It is defined in the third blowout portion 17c. The louver set 20 is configured such that the first conditioned air Ca1 is blown out from the first blowout portion 17a in the direction along the axis A (blowout angle θ1). Further, the second conditioned air Ca2 is configured to be inclined with respect to the axis A at a blowing angle (first blowing angle) θ2 depending on the inclination of the first louver 21 from the second blowing portion 17b. .. Further, the third conditioned air Ca3 is configured to be inclined with respect to the axis A at a blowing angle (second blowing angle) θ3 depending on the inclination of the second louver 22 from the third blowing portion 17c. .. The blowing angle θ3 of the third conditioned air Ca3 is larger than the blowing angle θ2 of the second conditioned air Ca2. Specifically, it is as follows.

The first louver 21 is composed of a quadrangular pyramid-shaped body extending outward from the upstream side to the downstream side of the airflow Af, and is composed of four inclined plates 21a. By attaching the louver set 20 to the duct 12 via the cover 16, the center of the first louver 21 is located on the axis A.

Each inclined plate 21a is located above the outside where the center of curvature is opposite to the axis A, and is curved with a predetermined radius of curvature. Referring to FIG. 1A, the inclination angle of the inclined plate 21a (first louver 21) with respect to the axis A is β1. The inclination angle β1 of the inclined plate 21a is an angle formed by the straight line L2 passing through the upper end and the lower end of the inner side surface located on the axis A side of the first louver 21 and the axis A, and is defined as an acute angle. The inclined plate 21a may have a flat plate shape without being curved. The tilt angle β1 will be described in detail later.

Inside the first louver 21, a plurality of partition plates 23a and 23b are provided so as to form a grid pattern. The partition plate 23a is generally flat and extends in the first direction (direction orthogonal to the paper surface in FIG. 1A) which is orthogonal to the axis A, and is orthogonal to the axis A and the first direction. A plurality of them are provided at intervals in a certain second direction (left-right direction in FIG. 1A). The partition plate 23b has a substantially flat plate shape, extends in the second direction, and is provided in plurality at intervals in the first direction. The thickness of the partition plates 23a and 23b is approximately 2 mm, and the distance between the adjacent partition plates 23a and the distance between the partition plates 23b is approximately 7.5 mm, respectively.

Subsequently, referring to FIGS. 1A and 4, the second louver 22 is provided so as to surround the first louver 21 and consists of a quadrangular pyramid-shaped body extending outward from the upstream side to the downstream side of the airflow Af. , It is composed of four inclined plates 22a. By attaching the louver set 20 to the duct 12 via the cover 16, the center of the second louver 22 is located on the axis A. The second louver 22 is connected to the first louver 21 via the rib 24. At the upper end of the second louver 22, a locking claw portion 25 for locking to the locking frame 16h of the cover 16 is provided.

Each inclined plate 22a is located above the outside where the center of curvature is opposite to the axis A, and is curved with a predetermined radius of curvature. Referring to FIG. 1A, the inclination angle of the inclined plate 22a (second louver 22) with respect to the axis A is β2. The inclination angle β2 of the inclined plate 22a is an angle formed by the straight line L3 passing through the upper end and the lower end of the inner side surface located on the axis A side of the second louver 22 and the axis A, and is defined as an acute angle. The tilt angle β2 of the second louver 22 is larger than the tilt angle β1 of the first louver 21. The inclined plate 22a may have a flat plate shape without being curved. The tilt angle β2 will be described in detail later.

As shown in FIGS. 1A, 2A and 2B, the diffusion member 30 is arranged in the flow dividing portion 13a in the duct 12, and the airflow Af of the conditioned air Ca is divided and diffused in the expansion portion 14. The diffusion member 30 includes two diversion plates 31 and 32 having different sizes, and four ribs 33 having these as an integral structure. The airflow Af in the connecting portion 13 is divided by the first diversion plate 31 into a first diversion Af1 toward the first outlet 17a and a second diversion Af2 toward the second outlet 17b, and the second diversion plate 32. It is divided into a second branch flow Af2 directed toward the second blowout portion 17b and a third branch flow Af3 directed toward the third blowout portion 17c.

The first diversion plate 31 is composed of a conical cylinder that extends outward from the upstream side to the downstream side of the air flow Af. Referring to FIG. 1A, the inclination angle of the first diversion plate 31 with respect to the axis A is γ1. The inclination angle γ1 of the first diversion plate 31 is an angle formed by the straight line L4 passing through the upper end and the lower end of the outer surface of the first diversion plate 31 located on the opposite side of the axis A and the axis A, and is an acute angle. Defined. The first diversion plate 31 is not limited to a flat plate shape, and may be curved in the same manner as the louvers 21 and 22.

The second diversion plate 32 is provided so as to surround the first diversion plate 31, and is connected to the first diversion plate 31 via a rib 33. The second diversion plate 32 is composed of a conical cylinder that extends outward from the upstream side to the downstream side of the air flow Af. Referring to FIG. 1A, the inclination angle of the second diversion plate 32 with respect to the axis A is γ2. The inclination angle γ2 of the second diversion plate 32 is an angle formed by the straight line L5 passing through the upper end and the lower end of the outer surface of the second diversion plate 32 located on the opposite side of the axis A and the axis A, and is an acute angle. Defined. The second diversion plate 32 is not limited to a flat plate shape, and may be curved in the same manner as the louvers 21 and 22.

The first louver 21 is located between the extension line of the first diversion plate 31 (straight line L4) and the extension line of the second diversion plate 32 (straight line L5), and the second louver 22 is on the extension line of the second diversion plate 32. The inclination angle γ1 of the first diversion plate 31 and the inclination angle γ2 of the second diversion plate 32 are set so as to be located. As a result, the second diversion Af2 separated by the first diversion plate 31 is directed toward the second outlet 17b, and the third diversion Af3 separated by the second diversion plate 32 is directed toward the third outlet 17c. ing.

The rib 33 protrudes radially from the outer peripheral surface of the first diversion plate 31, penetrates the second diversion plate 32, and further protrudes outward in the radial direction. The diameter of the virtual circle (not shown) that all passes through the outer end 33a of the rib 33 is larger than the inner diameter of the diversion portion 13a and smaller than the outer diameter of the diversion portion 13a. The outer end 33a of the rib 33 is inclined outward from the upstream side to the downstream side of the air flow Af. The outer end 33a is attached to the mounting hole 13b by inserting the diffusion member 30 through the opening 14a and press-fitting it into the flow dividing portion 13a. The first diversion plate 31 projects to the upstream side and the downstream side of the air flow Af with respect to the rib 33. The second diversion plate 32 projects to the downstream side of the airflow Af with respect to the rib 33.

Next, the airflow Af of the conditioned air Ca supplied to the outlet unit 10 will be described.

As shown in FIG. 1A, the airflow Af of the conditioned air Ca collides with the diffusion member 30 in the connecting portion 13, and is diffused outward around the axis A by the inclination of the flow dividing plates 31 and 32.

Specifically, a part of the airflow Af becomes a first diversion Af1 passing through the first diversion plate 31 and a second diversion Af2 colliding with the first diversion plate 31 and passing outside the first diversion plate 31. Divided. Further, the remaining part of the airflow Af is the above-mentioned second diversion Af2 passing through the second diversion plate 32 and the third diversion Af3 colliding with the second diversion plate 32 and passing outside the second diversion plate 32. It is divided into.

Since the first diversion Af1 does not collide with any of the diversion plates 31 and 32, the wind speed hardly decreases. Since the second branch flow Af2 is decelerated by the resistance when it collides with the inclined first branch flow plate 31, its wind speed is slower than the wind speed of the first branch flow Af1. Since the third branch flow Af3 is decelerated by the resistance when it collides with the inclined second branch flow plate 32, its wind speed is slower than the wind speed of the first branch flow Af1. The reduction speed of the second branch flow Af2 and the third branch flow Af3 depends on the inclination angles γ1 and γ2 of the flow dividing plates 31 and 32.

Subsequently, the first branch flow Af1 to the third branch flow Af3 collide with the louver set 20 at the outlet 17 via the expansion portion 14, and are blown out in a predetermined direction in the room by the inclination of the louvers 21 and 22.

Specifically, the first branch flow Af1 is blown into the room from the first blowing portion 17a. Due to the inclination of the first diversion plate 31, a part of the second diversion Af2 is blown into the room from the first blowing portion 17a, and most of the rest of the second diversion Af2 is blown into the room from the second blowing portion 17b. Due to the inclination of the second diversion plate 32, the third diversion Af3 is blown into the room from the third blowing portion 17c.

The first conditioned air Ca1 including the first branch flow Af1 is blown out from the first blowout portion 17a in the direction along the axis A (blowout angle θ1). At this time, the first conditioned air Ca1 collides with the partition plates 23a and 23b of the first blowing portion 17a, but since they extend along the axis A, the wind speed of the first divergence Af1 (first conditioned air Ca1) is almost the same. Does not decrease.

The second conditioned air Ca2 including the second shunt flow Af2 is blown out from the second blowing portion 17b at a blowing angle θ2 larger than the blowing angle θ1 of the first conditioned air Ca1 due to the inclination of the first louver 21. At this time, the second conditioned air Ca2 is decelerated by the resistance when it collides with the inclined first louver 21, so that the wind speed is slower than the wind speed of the first conditioned air Ca1. That is, the second branch flow Af2, which is slower than the first branch flow Af1, is further decelerated by the first louver 21 and blown out as the second conditioned air Ca2.

The third conditioned air Ca3 including the third branch flow Af3 is blown out from the third blowing portion 17c at a blowing angle θ3 larger than the blowing angle θ2 of the second conditioned air Ca2 due to the inclination of the second louver 22. At this time, the third conditioned air Ca3 is decelerated by the resistance when it collides with the second louver 22. Since the inclination angle β2 of the second louver 22 is larger than the inclination angle β1 of the first louver 21, the wind speed of the third conditioned air Ca3 is slower than the wind speed of the second conditioned air Ca2. That is, the third branch flow Af3, which is slower than the first branch flow Af1, is further decelerated by the second louver 22 and blown out as the third conditioned air Ca3.

As described above, the wind speeds V1 to V3 of the conditioned air Ca1 to Ca3 blown out from the individual blowing portions 17a to 17c by the diffusion member 30 and the louver set 20 have the fastest wind speed V1 of the first conditioned air Ca1 and the third conditioned air. The wind speed V3 of Ca3 becomes the slowest. Then, the inventors of the present application conducted diligent experiments to prevent dew condensation on the louvers 21 and 22, and found an optimum effective range of wind speed ratios of wind speeds V1 to V3 of the conditioned air Ca1 to Ca3.

Specifically, as shown in FIG. 1B, the first conditioned air Ca1 attracts the second conditioned air Ca2, the second conditioned air Ca2 covers the downstream end of the first louver 21, and the indoor air is the first. 1 Prevents the occurrence of dew condensation that accompanies contacting the louver 21 and lowering the temperature. In order to do so, the wind speed ratio V2 / V1 of the wind speed V1 of the first conditioned air Ca1 and the wind speed V2 of the second conditioned air Ca2 is set so as to satisfy the following equation.

[Number 1]
0.20 ≤ V2 / V1 ≤ 0.60
V1: Wind speed of the first conditioned air V2: Wind speed of the second conditioned air

Further, the second conditioned air Ca2 attracts the third conditioned air Ca3, the third conditioned air Ca3 covers the downstream end of the second louver 22, and the indoor air comes into contact with the second louver 22 to lower the temperature. Prevent the occurrence of accompanying dew. In order to do so, the wind speed ratio V3 / V2 of the wind speed V2 of the second conditioned air Ca2 and the wind speed V3 of the third conditioned air Ca3 is set so as to satisfy the following equation.

[Number 2]
0.15 ≤ V3 / V2 ≤ 0.75
V2: Wind speed of the second conditioned air V3: Wind speed of the third conditioned air

By setting the wind speeds V1 to V3 of the conditioned air Ca1 to Ca3 to the above-mentioned effective range, it is possible to suppress the indoor air from coming into contact with the louvers 21 and 22 due to the air flow of the conditioned air Ca1 to Ca3. Therefore, it is possible to prevent the occurrence of dew condensation caused by the indoor air coming into contact with the louvers 21 and 22 and lowering the temperature during cooling.

Then, in order to set the wind speeds V1 to V3 of the conditioned air Ca1 to Ca3 in the above-mentioned effective range, the flow dividing portion 13a, the outlet 17, the louvers 21 and 22, and the flow dividing plates 31 and 32 are configured as follows. ing.

Referring to FIG. 1A, the dimension D2 of one side of the outlet 17 is larger than the inner diameter R1 of the flow dividing portion 13a, and the expansion portion 14 is formed between them. The inclination angle α of the wall 14b of the expansion portion 14 is preferably set to 15 degrees or more and 20 degrees or less, and is set to 15 degrees in this embodiment. If the inclination angle α is excessively increased, the diffusion of the diversion Af2 and Af3 becomes excessive, so that the wind speeds V2 and V3 of the second conditioned air Ca2 and the third conditioned air Ca3 blown out from the second blowing portion 17b and the third blowing portion 17c. And the air volume becomes too small, and the wind speed ratios V2 / V1 and V3 / V2 are out of the effective range. If the inclination angle α is made excessively small, the diffusion of the diversion Af2 and Af3 becomes too small. And the air volume becomes excessive, and the wind speed ratios V2 / V1 and V3 / V2 are also out of the effective range. Therefore, it is preferable to set the inclination angle α of the wall 14b of the expansion portion 14 within the predetermined range.

The inclination angle β1 of the first louver 21 with respect to the axis A of the duct 12 is preferably set to 20 degrees or more and 30 degrees or less, and is set to 30 degrees in this embodiment. If the inclination angle β1 is made excessively small, the angle difference between the blowing angle θ2 of the second harmonized air Ca2 and the blowing angle θ3 of the third harmonized air Ca3 becomes large, so that the second harmonized air Ca2 attracts the third harmonized air Ca3. There is a risk that dew condensation will occur on the second louver 22. If the inclination angle β1 is excessively increased, the angle difference between the blowing angle θ1 of the first harmonized air Ca1 and the blowing angle θ2 of the second harmonized air Ca2 becomes large, so that the second harmonized air Ca2 is attracted by the first harmonized air Ca1. There is a risk that dew condensation will occur on the first louver 21. Therefore, it is preferable to set the inclination angle β1 of the first louver 21 within the predetermined range.

The inclination angle β2 of the second louver 22 with respect to the axis A of the duct 12 is preferably set to 65 degrees or more and 70 degrees or less, and is set to 68 degrees in this embodiment. If the inclination angle β2 is made excessively small, the third conditioned air Ca3 cannot be blown out along the cover 16, so that the indoor air may come into contact with the cover 16 and dew condensation may occur on the cover 16. If the inclination angle β2 is excessively increased, the angle difference between the blowing angle θ2 of the second harmonized air Ca2 and the blowing angle θ3 of the third harmonized air Ca3 becomes large, so that the second harmonized air Ca2 attracts the third harmonized air Ca3. There is a risk that dew condensation will occur on the second louver 22. Therefore, it is preferable to set the inclination angle β2 of the second louver 22 within the predetermined range.

The inclination angle γ1 of the first diversion plate 31 with respect to the axis A of the duct 12 is preferably set to 25 degrees or more and 40 degrees or less, and is set to 30 degrees in this embodiment. Further, the inclination angle γ2 of the second diversion plate 32 with respect to the axis A of the duct 12 is preferably set to 25 degrees or more and 40 degrees or less, and is set to 30 degrees in this embodiment. If the inclination angles γ1 and γ2 are made excessively small, the deceleration and diffusion of the diversion Af2 and Af3 are insufficient, so that the wind speed ratios V2 / V1 and V3 / V2 are out of the effective range. If the inclination angles γ1 and γ2 are excessively increased, the deceleration and diffusion of the diversion Af2 and Af3 become excessive, so that the wind speed ratios V2 / V1 and V3 / V2 are also out of the effective range. Therefore, it is preferable to set the inclination angle γ1 of the first diversion plate 31 and the inclination angle γ2 of the second diversion plate 32 within the predetermined ranges, respectively.

In the outlet unit 10 of the present embodiment, the inner diameter R1 of the flow dividing portion 13a is set to 93 mm, and the dimension D2 of the outlet 17 is set to 133.2 mm. Further, the total length D1 of the lower end edge of the wall 14b defining the opening 14a is set to 115.5 mm.

In this case, the total length D3 of the expansion portion 14, which is the dimension in the direction in which the axis A extends, is preferably set to a range of 35 mm or more and 50 mm or less, and is set to 42 mm in this embodiment. If the total length D3 of the expansion portion 14 is made excessively small, the diffusion of the diversion Af2 and Af3 is insufficient, so that the wind speed ratios V2 / V1 and V3 / V2 of the conditioned air Ca1 to Ca3 are out of the effective range. If the total length D3 of the expansion portion 14 is excessively increased, the diffusion of the diversion Af2 and Af3 becomes excessive, so that the wind speed ratios V2 / V1 and V3 / V2 of the conditioned air Ca1 to Ca3 are also out of the effective range. Therefore, it is preferable to set the total length D3 of the expansion portion 14 within the above-defined range.

As described above, the dimension of one side of the square-shaped outlet 17 is D2. On the other hand, the dimension of one side of the first blowing portion 17a is D4, the dimension of one side of the second blowing portion 17b is D5, and the dimension of one side of the third blowing portion 17c is D6. The dimension D4 of the first blowout portion 17a is defined as the distance between the inner edges of the upstream end portions of the opposing first louvers 21. The dimension D5 of the second blowout portion 17b is defined as the distance between the outer edge of the first louver 21 and the inner edge of the second louver 22 at the upstream end of the louvers 21 and 22. The dimension D5 of the third outlet 17c is defined as the distance between the outer edge of the second louver 22 and the inner edge of the outlet 17 at the upstream end of the second louver 22.

The ratio of the opening area of the first outlet 17a based on the dimension D4 to the opening area of the outlet 17 based on the dimension D2 is 45% or more and 55% or less. Further, the ratio of the opening area of the second outlet 17b based on the dimension D5 to the opening area of the outlet 17 is 20% or more and 25% or less. Further, the ratio of the opening area of the third outlet 17c based on the dimension D6 to the opening area of the outlet 17 is 5% or more and 10% or less. In the opening area of the outlet 17, in addition to the opening areas of the first blowing portion 17a, the second blowing portion 17b, and the third blowing portion 17c, the occupied areas of the two louvers 21 and 22 (as a ratio). Approximately 20%) is included. However, the occupied area of the partition plates 23a and 23b forming a grid pattern is not included.

If the ratio of the opening area of the first blowing portion 17a is made excessively small, the wind speed ratio V2 / V1 of the harmonized air Ca1 and Ca2 becomes out of the effective range, and the air volume required for temperature control near the floor surface of the room can be obtained. Can not. If the ratio of the opening area of the first blowing portion 17a is excessively increased, the air volume at the second blowing portion 17b and the third blowing portion 17c cannot be secured, so that dew condensation may occur on the louvers 21 and 22. Therefore, it is preferable to set the ratio of the opening area of the first outlet 17a to the opening area of the outlet 17 within the predetermined range.

If the ratio of the opening area of the second blowing portion 17b is excessively small, the air volume at the second blowing portion 17b cannot be secured, so that the wind speed ratios V2 / V1 and V3 / V2 of the conditioned air Ca1 to Ca3 are out of the effective range. .. If the ratio of the opening area of the second blowing portion 17b is excessively increased, the wind speed ratios V2 / V1 and V3 / V2 of the conditioned air Ca1 to Ca3 are also out of the effective range. Therefore, it is preferable to set the ratio of the opening area of the second outlet 17b to the opening area of the outlet 17 within the above-defined range.

If the ratio of the opening area of the third blowing portion 17c is excessively small, the air volume at the third blowing portion 17c cannot be secured, and thus dew condensation may occur on the cover 16. If the ratio of the opening area of the third blowing portion 17c is excessively increased, the wind speed ratio V3 / V2 of the conditioned air Ca2 and Ca3 becomes out of the effective range. Therefore, it is preferable to set the ratio of the opening area of the third outlet 17c to the opening area of the outlet 17 within the above-defined range.

As described above, in the outlet unit 10 of the present embodiment, the inner diameter R1 of the flow dividing portion 13a, the total length D3 of the expansion portion 14, the dimension D2 of the outlet 17, and the opening ratios of the individual outlet portions 17a to 17c are described above. The inclination angles γ1 and γ2 of the louvers 21 and 22 are set to the above-mentioned appropriate range. In the outlet unit 10, the inner diameter of the upstream end of the first diversion plate 31 is R2, and the inner diameter of the upstream end of the second diversion plate 32 is R3. Further, the inner diameter of the downstream end of the first diversion plate 31 is R4, and the inner diameter of the downstream end of the second diversion plate 32 is R5.

The ratio of the opening area of the upstream end of the first diversion plate 31 based on the inner diameter R2 to the opening area of the diversion portion 13a based on the inner diameter R1 is 0.5% or more and 2.5% or less. Further, the ratio of the opening area between the upstream end portions of the two diversion plates 31 and 32 based on the inner diameters R2 and R3 and the thickness (2 mm) of the first diversion plate 31 to the opening area of the diversion portion 13a is 25. % Or more and 30% or less. Further, the ratio of the opening area outside the upstream end of the second diversion plate 32 based on the inner diameter R3 and the thickness (2 mm) of the second diversion plate 32 to the opening area of the diversion portion 13a is 53% or more and 61%. It is as follows. The opening area of the diversion portion 13a includes the occupied area of the two diversion plates 31, 32 and the rib 33 (approximately 15% as a ratio).

Further, the ratio of the opening area of the downstream end portion of the first diversion plate 31 based on the inner diameter R4 to the opening area of the diversion portion 13a based on the inner diameter R1 is 6% or more and 11% or less. Further, the ratio of the opening area between the downstream end portions of the two diversion plates 31 and 32 based on the inner diameters R4 and R5 and the thickness (2 mm) of the first diversion plate 31 to the opening area of the diversion portion 13a is 35. % Or more and 39% or less. Further, the ratio of the opening area outside the downstream end portion of the second diversion plate 32 based on the inner diameter R4 and the thickness (2 mm) of the second diversion plate 32 to the opening area of the diversion portion 13a is 39% or more and 45%. It is as follows. The opening area of the diversion portion 13a includes the occupied area of the two diversion plates 31, 32 and the rib 33 (approximately 15% as a ratio).

If the opening area on the upstream side of the diversion plates 31 and 32 is made excessively small and the opening area on the downstream side of the diversion plates 31 and 32 is made excessively large, the inclination angles γ1 and γ2 of the first diversion plate 31 become large. The deceleration and diffusion of the diversion Af2 and Af3 become excessive. If the opening area on the upstream side of the diversion plates 31 and 32 is excessively large and the opening area on the downstream side of the diversion plates 31 and 32 is excessively small, the inclination angles γ1 and γ2 of the first diversion plate 31 become small. The deceleration and diffusion of Af2 and Af3 are insufficient. Therefore, it is preferable to set the ratio of the opening area of each portion partitioned by the diversion plates 31 and 32 to the opening area of the diversion portion 13a within the above-defined range.

In the outlet unit 10 configured in this way, as shown in FIG. 1B, the first conditioned air Ca1 including the first branch flow Af1 is blown out from the first outlet portion 17a along the axis A of the duct 12. Further, the third conditioned air Ca2 including the second branch flow Af2 is blown out from the second blowout portion 17b at a blowout angle θ2 inclined with respect to the axis A of the duct 12. Further, the third conditioned air Ca3 including the third branch flow Af3 is blown out from the third blowout portion 17c at a blowout angle θ3 further inclined with respect to the axis A of the duct 12.

As for the wind speeds V1 to V3 of the individual conditioned air Ca1 to Ca3, the wind speed V1 of the first conditioned air Ca1 is the fastest, and the wind speed V3 of the third conditioned air Ca3 is the slowest. Moreover, the wind speed ratio of the wind speed V1 of the first conditioned air Ca1 and the wind speed V2 of the second conditioned air Ca2 blown out from the first blowing portion 17a satisfies 0.20 ≦ V2 / V1 ≦ 0.60. Further, the wind speed ratio of the wind speed V2 of the second conditioned air Ca2 and the wind speed V3 of the third conditioned air Ca3 blown out from the second blowing portion 17b satisfies 0.15 ≦ V3 / V2 ≦ 0.75.

Therefore, a part of the second conditioned air Ca2 can be attracted by the first conditioned air Ca1, and the downstream end portion of the first louver 21 can be covered by the second conditioned air Ca2. Further, a part of the third conditioned air Ca3 can be attracted by the second conditioned air Ca2, and the downstream end portion of the second louver 22 can be covered by the third conditioned air Ca3. Therefore, the conditioned air Ca1 to Ca3 can prevent the indoor air from coming into contact with the air outlet unit 10. As a result, it is possible to prevent the occurrence of dew condensation that accompanies the indoor air coming into contact with the air outlet unit 10 and lowering the temperature during cooling.

The outlet unit 10 configured in this way has the following features.

Since the first conditioned air Ca1 is blown out from the first blowing portion 17a along the axis A of the duct 12, the vicinity of the floor surface of the room can be quickly warmed during heating, and the vicinity of the floor surface of the room can be quickly cooled during cooling. Can be cooled.

Since the first diversion plate 31 provided in the duct 12 is inclined, the wind speed of the second diversion Af2 in the duct 12 becomes slower than the wind speed of the first diversion Af1 due to the resistance when the airflow Af collides. .. Further, since the first louver 21 is inclined, the wind speed V2 of the second conditioned air Ca2 including the second shunt flow Af2 at the outlet 17 includes the first shunt flow Af1 due to the resistance when the second shunt flow Af2 collides. It is slower than the wind speed V1 of the first conditioned air Ca1. Due to the speed difference between the first conditioned air Ca1 and the second conditioned air Ca, the first conditioned air Ca1 attracts the second conditioned air Ca2, and the second conditioned air Ca2 covers the downstream end of the first louver 21. can. As a result, it is possible to prevent the indoor air containing a large amount of water from coming into contact with the first louver 21, and thus it is possible to prevent the occurrence of dew condensation due to the indoor air coming into contact with the first louver 21 and lowering the temperature during cooling.

Since an expansion portion 14 having an gradually expanded opening area is formed between the diversion portion 13a and the outlet 17, the expansion portion 14 having an expanded opening area of the diversion Af1 and Af2 separated by the first diversion plate 31. Can be effectively spread with. Further, the wind speed of the second branch flow Af2 inclined with respect to the axis A of the duct 12 can be surely made slower than the wind speed of the first branch flow Af1 along the axis A of the duct 12.

Since the wind speed ratio between the wind speed V1 of the first conditioned air Ca1 and the wind speed V2 of the second conditioned air Ca2 satisfies 0.20 ≦ V2 / V1 ≦ 0.60, the first conditioned air Ca1 ensures that the second conditioned air Ca2 is It can be attracted and the downstream end of the first louver 21 can be reliably covered by the second conditioned air Ca2.

Since the inclination angle γ1 of the first shunt plate 31 is 25 degrees or more and 40 degrees or less, the airflow Af can be reliably diffused so that the wind speed of the second shunt Af2 is slower than the wind speed of the first shunt Af1.

Since the inclination angle β1 of the first louver 21 is 20 degrees or more and 30 degrees or less, it is possible to reliably obtain a wind speed ratio V2 / V1 capable of attracting the second conditioned air Ca2 by the first conditioned air Ca1 and preventing dew condensation. can.

Since the second louver 22 is inclined so that the third conditioned air Ca3 is blown out from the third blowout portion 17c at a blowout angle θ3 larger than the blowout angle θ2 in the second blowout portion 17b, the third branch flow Af3 collides. The wind speed V3 of the third conditioned air Ca3 becomes slower than the wind speed V2 of the second conditioned air Ca2 due to the resistance at that time. Therefore, the second conditioned air Ca2 attracts the third conditioned air Ca3 due to the speed difference between the second conditioned air Ca2 and the third conditioned air Ca3, and the third conditioned air Ca3 covers the downstream end of the second louver 22. be able to. As a result, since it is possible to prevent the indoor air from coming into contact with the second louver 22, it is possible to prevent the occurrence of dew condensation that accompanies the indoor air coming into contact with the second louver 22 and lowering the temperature during cooling.

Since the wind speed ratio between the wind speed V2 of the second conditioned air Ca2 and the wind speed V3 of the third conditioned air Ca3 satisfies 0.15 ≦ V3 / V2 ≦ 0.75, the second conditioned air Ca2 ensures that the third conditioned air Ca3 is It can be attracted and the downstream end of the second louver 22 can be reliably covered by the third conditioned air Ca3.

Since the inclination angle γ2 of the second diversion plate 32 is 25 degrees or more and 40 degrees or less, the airflow Af can be reliably diffused so that the wind speed V3 of the third diversion flow Af3 is slower than the wind speed V1 of the first diversion flow Af1.

Since the inclination angle β2 of the second louver 22 is 65 degrees or more and 70 degrees or less, it is possible to reliably obtain a wind speed ratio V3 / V2 capable of attracting the third conditioned air Ca3 by the second conditioned air Ca2 and preventing dew condensation. ..

Since the ratio of the opening area of the first outlet 17a to the opening area of the outlet 17 is set to the above-mentioned appropriate range, the vicinity of the floor surface of the room can be quickly cooled and heated. Further, since the ratio of the opening area of the second outlet 17b and the ratio of the opening area of the third outlet 17c to the opening area of the outlet 17 are set in the above-mentioned appropriate range, the wind speed ratio. In addition to V2 / V1 and V3 / V2, the air volume ratio is also the largest in the first blowing portion 17a and the smallest in the third blowing portion 17c. As a result, the first conditioned air Ca1 can surely attract the second conditioned air Ca2, and the second conditioned air Ca2 can surely attract the third conditioned air Ca3.

Moreover, the ratio of the opening area inside the first diversion plate 31 to the opening area of the diversion portion 13a, the ratio of the opening area between the two diversion plates 31 and 32, and the outside of the second diversion plate 32. Since the ratio occupied by the opening area is set in the above-mentioned appropriate range, the diversions Af1 to Af3 adjusted to a predetermined wind velocity can be guided to the blowout portions 17a to 17c, respectively. Therefore, the wind speed ratios V2 / V1 and V3 / V2 of the conditioned air Ca1 to Ca3 can be set in the effective range.

As described above, in the outlet unit 10 of the present embodiment, since the first conditioned air Ca1 is blown out along the axis A of the duct 12, the temperature near the floor surface can be quickly cooled and heated. Further, a velocity difference is set for the harmonized air Ca1 to Ca3 blown out from the blowing portions 17a to 17c, and in particular, the wind speed ratio is 0.20 ≦ V2 / V1 ≦ 0.60, 0.15 ≦ V3 / V2 ≦ 0.75. Because it is set to, it is possible to prevent dew condensation during cooling. Then, in order to confirm the effect on dew condensation, the present inventors referred to the book "Planning and Design of Low Temperature Blower Air Conditioning System" published on December 25, 2003, by the description of the Japan Society for Air Conditioning and Sanitary Engineering. And conducted an experiment.

(Experimental example)
As shown in FIG. 5, a two-chamber separated air-conditioning chamber separated into a first test chamber 2 and a second test chamber 3 is used, and the main duct 5 is passed through the wall 4 separating the test chambers 2 and 3 to penetrate the main duct. The test chambers 2 and 3 were communicated with each other by 5. A blower (Suiden SJF-300L-3) 6 is installed in the first test chamber 2 so as to be located at one end of the main duct 5, and the air in the first test chamber 2 is passed through the main duct 5 to the second test chamber 3. Can be supplied to. A wooden frame 7 was installed in the second test room 3, and the other end of the main duct 5 was connected to the air outlet unit 10 attached to the ceiling 1 of the wooden frame 7.

Anemometers (testo heat ray type anemometer testo425) 8a to 8c are attached to the first outlet 17a to the third outlet 17c of the outlet unit 10 in order to measure the wind speeds V1 to V3 of the conditioned air Ca1 to Ca3. I installed it. Further, in order to confirm whether or not the second harmonized air Ca2 is entrained by the first harmonized air Ca1 and the third harmonized air Ca3 is entrained by the second harmonized air Ca2, the smoke generator 9 (ANTARI) is inserted into the suction port of the blower 6. Z-1000II) was installed, and a super slow camera (SONY FDR-AX700) that captures the movement of smoke blown out from the air outlet unit 10 was installed in the second test room 3.

After controlling the temperature of the first test chamber 2 to 10 ° C. and the temperature of the second test chamber 3 to a temperature of 30 ° C. and a humidity of 65%, the blower 6 is driven to blow the air of the first test chamber 2 through the main duct 5. 2 Blow out from the outlet unit 10 of the test chamber 3 and maintain this state for 6 hours. Then, the wind speed ratios V2 / V1 and V3 / V2 are calculated from the wind speeds V1 to V3 measured by the anemometers 8a to 8c, and the presence or absence of entrainment of the harmonized air Ca2 and Ca3 and the presence or absence of entrainment of the harmonized air Ca2 and Ca3 and the second test room 3 after 6 hours The presence or absence of dew condensation water dripping on the floor was evaluated. The results are shown in Table 1 below.

In Table 1, the inventions 1 to 5 are outlet units 10 in which both the wind speed ratios V2 / V1 and V3 / V2 are within the above-mentioned effective range. Comparative products 1 to 3 are outlet units 10 having a wind speed ratio V2 / V1 outside the above-mentioned effective range. In the case of the inventions 1 to 5, the entrainment of the harmonized air Ca2 and Ca3 could be confirmed in the airflow visualization test by smoke, and no dew condensation water was observed on the floor surface of the wooden frame 7 in the dew condensation test. In the case of Comparative Products 1 to 3, the entrainment of the harmonized air Ca2 and Ca3 could not be confirmed in the airflow visualization test by smoke, and the dew condensation water was observed on the floor surface of the wooden frame 7 in the dew condensation test.

From this experimental result, it is preferable that the wind speeds V1 to V3 of the harmonized air Ca1 to Ca3 blown out from the outlet unit 10 have the fastest wind speed V1 and the slowest wind speed V3, and the wind speed ratios V2 / V1 and V3 / V2 are 0. It was confirmed that it is more preferable to satisfy .20 ≦ V2 / V1 ≦ 0.60 and 0.15 ≦ V3 / V2 ≦ 0.75. Further, it was confirmed that it is effective to set the wind speed ratio V2 / V1 to the above-mentioned effective range in order to prevent dew condensation. Further, it was confirmed that by doing so, the generation of dew condensation at the outlet 17 can be suppressed during cooling, and the vicinity of the floor surface can be warmed with good air conditioning efficiency during heating.

The air-conditioning outlet unit 10 of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

For example, the outlet 17 and the louvers 21 and 22 are not limited to a quadrangular shape, and may be a circular shape or a polygonal shape other than the quadrangular shape. Further, the connecting portion 13 (flow dividing portion 13a) and the flow dividing plates 31 and 32 are not limited to a circular shape, and may have a quadrangular shape or a polygonal shape other than the quadrangular shape.

The louver set 20 may be configured by the first louver 21 and the partition plates 23a and 23b without providing the second louver 22. Further, a third louver may be provided so as to surround the second louver 22, and the number of louvers can be changed as needed. The diffusion member 30 may be composed of the first diversion plate 31 and the rib 33 without providing the second diversion plate 32. Further, a third diversion plate may be provided so as to surround the second diversion plate 32, and the number of diversion plates can be changed as needed.

1 Ceiling 2 1st test room 3 2nd test room 4 wall 5 main duct 6 blower 7 wooden frame 8a-8c wind speed meter 9 smoke generator 10 air conditioning outlet unit 12 duct 13 connection part 13a diversion part 13b mounting hole 14 expansion Part 14a Opening 14b Wall 15 Mounting part 15a Positioning recess 15b Pressure welding part 15c Slit 15d Locking part 16 Cover 16a Outer frame part 16b Wall part 16c First part 16d Second part 16e Positioning convex part 16f Locking claw 16g End wall part 16h Locking frame 17 Outlet 17a 1st outlet 17b 2nd outlet 17c 3rd outlet 20 Louver set 21 1st louver 21a Inclined plate 22 2nd louver 22a Inclined plate 23a, 23b Partition plate 24 Rib 25 Locking claw Part 30 Diffusing member 31 1st diversion plate 32 2nd diversion plate 33 Rib 33a Outer end α Dict angle of duct wall β1 Tilt angle of 1st louver β2 Tilt angle of 2nd louver γ1 Tilt angle of 1st diversion plate γ2 1st Inclined angle of 2 conditioned air Ca1 1st conditioned air Ca2 2nd conditioned air Ca3 3rd conditioned air Af air flow Af1 1st conditioned air Af2 2nd conditioned air Af3 3rd conditioned air blowout angle θ2: 1st 2 Air-conditioned air blowing angle (first blowing angle)
θ3: Blow-out angle of the third conditioned air (second blow-out angle)

Claims (12)

A cylindrical duct that has an air outlet at one end and allows the air flow of conditioned air to flow toward the air outlet.
A first louver provided at one end of the duct and formed of a cylindrical body extending outward from the upstream side to the downstream side of the air flow, and a first louver.
A first outlet defined inside the first louver of the outlet,
A second outlet defined outside the first louver of the outlet,
It is composed of a tubular body provided in the duct so as to be located on the upstream side of the airflow with respect to the first louver and spread outward from the upstream side to the downstream side of the airflow, and the airflow is referred to the first louver. It is equipped with a first diversion plate that separates the first diversion toward the 1 outlet and the second diversion toward the second outlet.
The first conditioned air including the first diversion flow is blown out from the first blowing portion in the direction along the axis of the duct.
The second conditioned air containing the second diversion is blown out from the second blowing portion at a first blowing angle depending on the inclination of the first louver with respect to the axis of the duct.
The air-conditioning outlet unit whose wind speed of the first harmonized air is faster than that of the second harmonized air. The duct is
A portion where the first diversion plate is provided, and a diversion portion having an opening area smaller than the opening area of the outlet.
The air-conditioning outlet unit according to claim 1, further comprising an expansion portion provided between the diversion portion and the air outlet and the opening area gradually increases from the diversion portion to the air outlet. The air-conditioning outlet unit according to claim 1 or 2, wherein the wind speed ratio of the first harmonized air and the second harmonized air satisfies the following.
0.20 ≤ V2 / V1 ≤ 0.60
V1: Wind speed of the first conditioned air V2: Wind speed of the second conditioned air The air conditioning outlet unit according to any one of claims 1 to 3, wherein the inclination angle of the first diversion plate with respect to the axis of the duct is 25 degrees or more and 40 degrees or less. The air conditioning outlet unit according to any one of claims 1 to 4, wherein the inclination angle of the first louver with respect to the axis of the duct is 20 degrees or more and 30 degrees or less. It is composed of a tubular body provided at one end of the duct so as to surround the first louver and spreads outward from the upstream side to the downstream side of the air flow, and defines the second outlet portion together with the first louver. The second louver to do,
A third outlet defined outside the second louver of the outlet,
It is composed of a tubular body provided in the duct so as to surround the first diversion plate and spreads outward from the upstream side to the downstream side of the air flow, and the air flow is supplied to the second diversion and the third outlet. Equipped with a second diversion plate that separates the third diversion toward the part,
The third conditioned air including the third diversion is inclined from the third blowing portion with respect to the axis of the duct at a second blowing angle larger than the first blowing angle depending on the tilt of the second louver. Blowout,
The air conditioning outlet unit according to any one of claims 1 to 5, wherein the wind speed of the third harmonized air is slower than the wind speed of the second harmonized air. The air conditioning outlet unit according to claim 6, wherein the wind speed ratio of the second harmonized air and the third harmonized air satisfies the following.
0.15 ≤ V3 / V2 ≤ 0.75
V2: Wind speed of the second conditioned air V3: Wind speed of the third conditioned air The air conditioning outlet unit according to claim 6 or 7, wherein the inclination angle of the second diversion plate with respect to the axis of the duct is 25 degrees or more and 40 degrees or less. The air conditioning outlet unit according to any one of claims 6 to 8, wherein the inclination angle of the second louver with respect to the axis of the duct is 65 degrees or more and 70 degrees or less. The ratio of the opening area of the first outlet to the opening area of the outlet is 45% or more and 55% or less.
The ratio of the opening area of the second outlet to the opening area of the outlet is 20% or more and 25% or less.
The ratio of the opening area of the third outlet to the opening area of the outlet is 5% or more and 10% or less.
The air conditioning outlet unit according to any one of claims 6 to 9. The ratio of the opening area inside the upstream end of the first diversion plate to the opening area of the diversion portion of the duct provided with the first diversion plate and the second diversion plate is 0.5% or more 2 At .5% or less,
The ratio of the opening area between the upstream end of the first diversion plate and the upstream end of the second diversion plate to the opening area of the diversion portion of the duct is 25% or more and 30% or less.
The ratio of the opening area outside the upstream end of the second diversion plate to the opening area of the diversion portion of the duct is 53% or more and 61% or less.
The air conditioning outlet unit according to any one of claims 6 to 10. The ratio of the opening area inside the downstream end of the first diversion plate to the opening area of the diversion portion of the duct is 6% or more and 11% or less.
The ratio of the opening area between the downstream end of the first diversion plate and the downstream end of the second diversion plate to the opening area of the diversion portion of the duct is 35% or more and 39% or less.
The ratio of the opening area outside the downstream end of the second diversion plate to the opening area of the diversion portion of the duct is 39% or more and 45% or less.
The air conditioning outlet unit according to claim 11.

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