JP2010019526A - Air conditioning system, air conditioning method and air outlet member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a temperature difference with height in an accommodation region and prevent uncomfortable feeling of seated audience, in an air conditioning method in which air outlets for air conditioning are provided on the floor face in the vicinity of seats. <P>SOLUTION: The air outlet 2 for air-conditioning air is provided on the floor face below each seat 45, and the air-conditioning air is blown out toward a section near the lower end of a back plate 47 of the seat 45 positioned above the air outlet 2. Since air-conditioning air blown out from the air outlet 2 is lifted in a region 50 along the back face of the back plate 47 due to the Coanda effect, the air-conditioning air does not directly come into contact with the legs of the audience and reaches the upper side of the accommodation region. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention, for example, in a space where a plurality of seats such as a hall or a meeting place is installed, regardless of whether there is a step on the floor surface, and when there is a step, is used regardless of the height of the step. The present invention relates to a possible air conditioning system, an air conditioning method, and an air outlet member attached to an air conditioning air outlet provided on a floor surface in the air conditioning method.

In recent years, as an air-conditioning method in a space where a plurality of seats with steps on the floor are installed such as a hall or a meeting place, a method of providing air-conditioned air outlets on the floor surface in the vicinity of each seat has been used (for example, Patent Document 1 paragraph [0039] etc.). On the other hand, in a space air conditioning system in which a plurality of seats with no steps on the floor are installed, for example, air outlets used in offices as described in Patent Document 2 are installed on the floor surface of each seat is doing.
Japanese Patent Application Laid-Open No. 2004-232297 Registered Utility Model No. 2542257

In such an air-conditioning method in a space where a plurality of seats are installed, by providing an air outlet on the floor, conditioned air hits the lower limbs of the audience seated on the seats, and the audience may feel uncomfortable.
In addition, if the seat space is small and there is no room to provide an air outlet between the front and rear seats, if the air outlet is provided below the seat, the conditioned air does not reach the upper part of the living area, and the temperature above and below the living area. There was a problem that the difference became large.

  The present invention has been made in view of the above problems, and the purpose thereof can be used in cases where there is no step on the floor surface of the seat and reduces the temperature difference in the living area height, It is to prevent the seated audience from feeling uncomfortable.

  An air conditioning system for a space according to the present invention is an air conditioning system for a space in which a seat having a backrest is installed, and an air outlet is provided on a floor surface below the seat, and the air outlet is located on a rear side of the seat. From the portion, the conditioned air is blown out obliquely upward or vertically upward, and the conditioned air is blown from the portion on the front side of the seat so as to spread obliquely upward and backward in the lateral direction of the seat. It is formed so that it may come out.

  In the above air conditioning system, the air outlet blows out conditioned air from at least a part of the rear side portion of the seat so as to spread in a lateral direction of the seat, substantially vertically upward or obliquely upward rearward. It may be formed as follows.

  The air-conditioning method of the present invention is an air-conditioning method for a space in which a seat having a backrest is installed, and is provided with an air outlet on a floor surface below the seat, from the rear side portion of the seat of the air outlet. The conditioned air is blown out obliquely upwards substantially vertically upward or backward, and conditioned air spreads in the lateral direction of the seats obliquely upwards backward from the front side portion of the air outlet. It is characterized by blowing out.

  Further, the air outlet member of the present invention is an air outlet member that is attached to an air conditioned air air outlet provided on a floor surface below a seat having a backrest, the frame body formed in a cylindrical shape, and the frame A plurality of louvers provided in the body so as to incline toward the rear of the seat, and the conditioned air passing between the plurality of louvers is blown out toward the vicinity of the lower portion of the backrest. It is characterized by.

  In the above-described air outlet member, the air outlet is provided on a substantially lower floor surface of the backrest, and the frame body includes a front air outlet formed of an opening formed in a front side portion of the seat, and the seat A plurality of louvers are installed in the front air outlet so as to incline obliquely upward toward the rear, and the rear air outlet. It may consist of a rear louver installed so as to be inclined obliquely upward in the substantially vertical direction or rearward in the outlet.

The front air outlet is divided into a pair of air outlets by a frame member provided on a substantially central axis in the lateral direction of the seat, and the front louver is in the pair of air outlets, It may be provided so as to incline obliquely upward toward the rear and to incline in a direction away from the central axis.
A guide vane may be provided between the rear louvers so as to be inclined obliquely upward in a direction away from the substantially central axis in the lateral direction of the seat.

  According to the present invention, the conditioned air is blown out from the outlet provided in the floor below the seat toward the vicinity of the lower end of the back of the seat back, so the conditioned air that is blown out is backed by the Coanda effect. Ascending upward along the back surface of the. As a result, there is no airflow in the vicinity of the lower limbs of the audience seated in the seat, so there is no discomfort to the audience, and the conditioned air rises along the back of the backrest, so the seat space is narrow. Even the temperature difference in the living space can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing a space when the floor air outlet for seat air conditioning according to the present embodiment is provided on a stepped floor, and FIG. 2 is a cross-sectional view taken along line AA in FIG. That is, the floor air outlet 1 for seat air conditioning according to the present embodiment is applicable to air conditioning in a large space such as a hall or a meeting place, and a plurality of floor air outlets 1 are arranged on the floor of a large space such as a hall or a meeting place. is the air-conditioning system that blows conditioned air from the seat 45 near the (conditioned air about 20~60m 3 / ^h) of a plurality of seats 45 (hereinafter, referred to as. "seat conditioning") is a valid.

  In the present embodiment, the seats 45 are arranged in a plurality of rows in the front-rear direction (left-right direction in FIG. 1) on the stair-like floor surface 40 with reference to a stage disposed in front of a large space such as a hall or a meeting place. And a plurality of seats 45 are arranged in each row in the horizontal direction (vertical direction in FIG. 1).

  As shown in FIGS. 1 and 2, each seat 45 includes a leg portion 46 fixed to the floor surface 40, a back plate 47 supported substantially vertically by the leg portion 46, and a lower end portion in front of the back plate 47. The seat surface 48 is rotatably provided, and the seat is rotated in a horizontal state when in use, and the seat surface 48 is rotated in a vertical state along the back plate 47 when not in use. Moreover, each seat 45 is arrange | positioned so that a clearance gap may be formed between the back part and the kick-up of the floor surface 40. FIG.

The floor air outlet 1 for seat air conditioning according to the present embodiment has an outlet hole at a predetermined position on the floor surface 40 on the center line in the lateral direction (vertical direction in FIG. 1) of the seating surface 48 (back plate 47) of each seat 45. 41 is provided, and the blower outlet body 2 is attached to the blowout hole 41.
In the present embodiment, the blowout hole 41 is provided at a position away from the kick-up position A of the rear seat floor 40 in the direction of the front seat by a predetermined dimension a.

  Here, the predetermined dimension a is set to a value corresponding to the diameter of the outlet hole 41 (outer diameter of the outlet body 2). For example, the diameter of the outlet hole 41 (outer diameter of the outlet body 2) is 10 cm. In the case of about 2.5 cm to 7.0 cm, and the diameter of the outlet hole 41 (outer diameter of the outlet body 2) is 8 cm, the diameter of the outlet hole 41 (outlet of about 1.5 cm to 6.0 cm) When the outer diameter of the outlet body 2 is 16 cm, it is set to about 3.5 cm to 8.5 cm.

  3A and 3B are views showing the air outlet body 2, wherein FIG. 3A is a plan view, FIG. 3B is a sectional view taken along line BB, FIG. 3C is a sectional view taken along line CC, and FIG. It is. In addition, the left-right direction in the figure corresponds to the front-rear direction of the seat, and the up-down direction in the figure corresponds to the lateral direction of the seat. The left direction corresponds to the front of the seat, and the right direction corresponds to the rear of the seat. As shown in the figure, the air outlet 2 is configured symmetrically in the seat lateral direction with the center line a as the center, and includes a cylindrical main body 3a and an annular flange 3b provided integrally with one end of the main body 3a. The outer frame 3 and the main body 3a of the outer frame 3 are provided so as to intersect with each other in the vertical direction. The four fan-shaped spaces (the first space 5, the second space 6, the third space 7, and the fourth space) A pair of inner frames 4 partitioned into a space 8), and a plurality of louvers 10 to 14, 20 provided in each space (first space 5, second space 6, third space 7 and fourth space 8), respectively. 24, and a plurality of louvers 10 to 14, 20 to 24 have blowout openings 15 to 19, 25 to 30 in the first space 5, the second space 6, the third space 7, and the fourth space 8, respectively. Is formed.

  In the present embodiment, the opening areas of the blowout openings 15-19, 25-30 formed in the first space 5, the second space 6, the third space 7, and the fourth space 8, respectively, are, for example, It is set to 25%.

  The inner frame 4 has a plate-like vertical frame 4a provided on the center line a of the main body 3a of the outer frame 3, and a plate-like shape provided on the center line b of the main body 3a of the outer frame 3 orthogonal to the vertical frame 4a. The fan-shaped first space 5 and the second space are respectively formed in a portion surrounded by the vertical frame 4 a, the horizontal frame 4 b, and the main body 3 a of the outer frame 3. 6, a third space 7 and a fourth space 8 are formed.

  The blower outlet body 2 inserts the main body 3a of the outer frame 3 into each blowout hole 41 below the seating surface 48 of each seat 45, and the vertical frame 4a of the inner frame 4 extends in the front-rear direction of each seat 45 (in FIG. The main frame 3a of the outer frame 3 in each outlet hole 41 is adjusted so that the horizontal frame 4b faces the horizontal direction (vertical direction in FIG. 1) of each seat 45. It is attached to the hole 41.

  By attaching the outlet body 2 in each outlet hole 41 in the above-described direction, the first space 5 and the second space 6 are arranged on the rear side (rear seat side) of each seat 45 in the front-rear direction. The third space 7 and the fourth space 8 are arranged on the side (front seat side).

  In the first space 5 and the second space 6 of the air outlet body 2, a plurality of plate shapes are formed so as to be parallel to the horizontal frame 4 b of the inner frame 4 (so as to be orthogonal to the vertical frame 4 a of the inner frame 4). The plurality of louvers 10 to 14 are integrally provided so as to be parallel to each other at predetermined intervals, and the plurality of blowout openings in which the first space 5 and the second space 6 are vertically oriented by the plurality of louvers 10 to 14. It is partitioned into 15-18.

  In the present embodiment, five plate-like shapes of the first louver 10, the second louver 11, the third louver 12, the fourth louver 13, and the fifth louver 14 in the first space 5 and the second space 6. Providing a louver, forming a first blowing opening 15 between the first louver 10 and the main body 3a of the outer frame 3, forming a second blowing opening 16 between the first louver 10 and the second louver 11, A third blowout opening 17 is formed between the second louver 11 and the third louver 12, a fourth blowout opening 18 is formed between the third louver 12 and the fourth louver 13, and the fourth louver 13 and the A fifth blowing opening 19 is formed between the five louvers 14. The fifth louver 14 also serves as the horizontal frame 4b of the inner frame 4.

  The first louver 10, the second louver 11, and the third louver 12 have a plate shape with a rectangular cross section, and both front and rear surfaces (front and rear surfaces) of the seat 45 are parallel to the vertical direction. Are provided in the first space 5 and the second space 6, respectively. The fourth louver 13 has a plate shape with a trapezoidal cross section, and the front surface of the seat 45 forms a predetermined angle (about 10 to 20 degrees) with respect to the vertical direction. The first space 5 and the second space 6 are provided so that the planes are parallel to the vertical direction. Further, the fifth louver 14 has a plate shape with a trapezoidal cross section, and the front surface of the seat 45 is vertical, and the rear surface is a predetermined angle (about 10 with respect to the vertical direction). Are provided in the first space 5 and the second space 6 so as to form (˜20 degrees).

  By providing the first louver 10, the second louver 11, the third louver 12, the fourth louver 13, and the fifth louver 14 in such a shape in the first space 5 and the second space 6, the first blowout opening is provided. 15, the 2nd blowing opening 16, the 3rd blowing opening 17, and the 4th blowing opening 18 are formed in the blowing opening of the cross-sectional shape where the both surfaces of the front-back direction of the seat 45 are parallel to a perpendicular direction, and the 5th blowing opening 19 is The front side surface of the seat 45 forms a predetermined angle (about 10 to 20 degrees) with respect to the vertical direction.

  A predetermined distance is provided in the lateral direction of the seat 45 in the third blowout opening 17 between the second louver 11 and the third louver 12 and in the fourth blowout opening 18 between the third louver 12 and the fourth louver 13. Two plate-like guide vanes (a first guide vane 31 and a second guide vane 32) are provided for each, and the third blowout opening 17 and the fourth blowout opening are provided by the first guide vane 31 and the second guide vane 32. 18 is partitioned into three small outlets 17a to 17c and 18a to 18c in the lateral direction of the seat 45.

  The 1st guide vane 31 and the 2nd guide vane 32 are provided in the 3rd blowing opening 17 and the 4th blowing opening 18, respectively, so that both sides of the transverse direction of seat 45 may make about 30-60 degrees to the perpendicular direction. It has been. Thus, one side surface of the seat 45 in the lateral direction is parallel to the vertical direction between the main body 3a of the outer frame 3 in the third blowing opening 17 and the fourth blowing opening 18 and the first guide vane 31. None, small blowout openings 17a and 18a having a trapezoidal cross section with the other surface forming approximately 30 to 60 degrees with respect to the vertical direction are formed. Further, between the first guide vane 31 and the second guide vane 32, small blowout openings 17b and 18b having a cross-sectional shape in which both lateral surfaces of the seat 45 form approximately 30 to 60 degrees with respect to the vertical direction are formed. The Further, between the second guide vane 32 and the vertical frame 4a of the inner frame 4, one lateral surface of the seat 45 forms about 30 to 60 degrees with respect to the vertical direction, and the other surface is in the vertical direction. Parallel small outlets 17c and 18c are formed.

  With this configuration, the conditioned air that has passed through the first to fourth blowing openings 15 to 18 of the first space 5 and the second space 6 located in the vicinity of the rear portion of the seat 45 is blown upward, The conditioned air that has passed through the fifth blowing opening 19 located below is blown toward the lower end of the back plate 47, and these are combined and flow toward the vicinity of the lower end of the back plate 47 of the seat 45. Further, since the conditioned air blown from the third and fourth blowout openings 17 and 18 is blown so as to spread in the seat lateral direction, the seat of the conditioned air blown from the first space 5 and the second space 6 Variation in lateral flow velocity is suppressed.

In the present embodiment, in the third blowing opening 17 between the second louver 11 and the third louver 12, and in the fourth blowing opening 18 between the third louver 12 and the fourth louver 13, Although two guide vanes of the first guide vane 31 and the second guide vane 32 are provided, one or more guide vanes may be provided in the third blowout opening 17 and the fourth blowout opening 18.
Further, guide vanes may be provided in the fifth blowout opening 19, but the seat rear side surface of the fifth louver 14 is inclined with respect to the vertical direction, and the seat 45 in the fifth blowout opening 19 is provided. Since the vertical cross-sectional shape in the front-rear direction is complicated, it is not provided in this embodiment.

  Further, in the third space 7 and the fourth space 8, a plurality of plate-like louvers 20 to 24 are formed so as to form about 45 degrees in a plan view with respect to the vertical frame 4a (horizontal frame 4b) of the inner frame 4. Are provided integrally so as to be parallel to each other at predetermined intervals, and the louvers 20 to 24 partition the inside of the third space 7 and the fourth space 8 into a plurality of openings 25 to 30 that face in the vertical direction. .

  In the present embodiment, five plate-like louvers of the first louver 20 to the fifth louver 24 are provided in the third space 7 and the fourth space 8, and the horizontal frame 4b of the inner frame 4 and the first louver 20 A first opening 25 is formed therebetween, a second opening 26 is formed between the first louver 20 and the second louver 21, and a third opening 27 is formed between the second louver 21 and the third louver 22. A fourth opening 28 is formed between the third louver 22 and the fourth louver 23, and a fifth opening 29 is formed between the fourth louver 23 and the fifth louver 24. A sixth opening 30 is formed between the main body 3 a of the frame 3.

The first louver 20 to the fifth louver 24 are formed in a plate shape having a rectangular cross section, and the first and second louvers 20 (front and rear surfaces) of the seat 45 form about 50 to 70 degrees with respect to the vertical direction. The third space 7 and the fourth space 8 are provided.
Thereby, between the horizontal frame 4b of the inner frame 4 and the first louver 20, between the first louver 20 and the second louver 21, between the second louver 21 and the third louver 22, and the third louver 22 Between the fourth louver 23 and between the fourth louver 23 and the fifth louver 24, the first opening 25 and the second opening 45 in which both sides in the front-rear direction of the seat 45 form about 50 to 70 degrees with respect to the vertical direction. An opening 26, a third opening 27, a fourth opening 28, and a fifth opening 29 are formed, and the front surface of the seat 45 is perpendicular to the vertical direction between the fifth louver 24 and the main body 3a of the outer frame 3. Thus, a sixth opening 30 is formed in which the rear surface is approximately 50 to 70 degrees with respect to the vertical direction.

  With this configuration, the conditioned air that has passed through the third space 7 and the fourth space 8 is blown obliquely upward to the rear of the back plate 47 of the seat, and is further blown out from the first space 5 and the second space 6. Compared to the conditioned air, the air is blown out more widely in the lateral direction of the seat.

  FIG. 4 is a diagram showing the flow of conditioned air blown out from the air outlet 1 in the vicinity of the seat 45. As described above, the conditioned air that has passed through the third space 7 and the fourth space 8 located in front of the outlet body 2 is blown out in a wide range in the lateral direction of the seat 45 toward the rear of the seat 45. The conditioned air that has passed through the first space 5 and the second space 6 located behind the outlet body 2 is blown out substantially vertically upward toward the back plate 47 of the seat 45. Then, as shown in FIG. 4, the air blown out from the first to fourth spaces 5 to 8 is combined, and is about 10 cm behind the back plate 47 due to the Coanda effect using the back plate 47 of the seat 45. An air region (a region shown in gray in the drawing, hereinafter abbreviated as “chair rear rising air region”) 50 that extends in the horizontal direction in the space 50 flows along the back plate 47. Due to the airflow rising along the chair back rising air area 50, the conditioned air reaches the upper part of the living area height. As a result, no airflow is generated in the vicinity of the lower limbs of the spectator seated on the seat 45, and the conditioned air is blown upward along the back plate 47, so that the variation in temperature difference at the height of the living area is reduced.

  Here, according to the present embodiment, the inventors of the present application form an air area upward along the back plate 47 toward the chair back rising air area 50 as described above, and other than the chair back rising air area. Since it has been confirmed by experiment that no strong airflow is generated in this part, it will be described below.

  FIG. 5 is a diagram showing the state of the experiment. In this experiment, as will be described in detail below, the shape of the air outlet body 2, the position of the air outlet body 2 (distance a from the rear seat floor kick-up position A), and the shape of the floor surface 40 (with steps and without steps) ) To change the distance b from the back plate 47 of the seat 45 (1 cm, 2 cm, 4 cm, 7 cm, 10 cm, 13 cm, 16 cm, 20 cm, 30 cm) and the height c (95 cm, 66 cm, 50 cm, 36 cm, 16 cm) ), And the flow velocity of the airflow at the measurement point at the position corresponding to the back of the lower limb of the audience seated in front of the seat 45 is measured.

<Condition 1> When a blower outlet is provided on a floor surface without a step, and a conventionally used blower outlet body (φ200 mm) is used as the blower outlet body. FIG. 6 is conventionally used for a floor surface without a step. It is a table | surface which shows the flow velocity in each measurement point at the time of using a blower outlet body. As shown in the figure, at a measurement point that is 10 cm or more away from the back surface of the seat 45 (b ≧ 10 cm), the flow rate does not exceed 0.25 m / s at which the person feels uncomfortable, but the measurement point at the position corresponding to the back surface of the lower limbs In this case, the flow velocity is 0.36 m / s, which exceeds 0.25 m / s, and it can be seen that the spectator seated on the seat may feel uncomfortable.

<Condition 2-1> On the floor surface without a step, the air outlet of the present embodiment is provided at a distance a = 3.25 cm from the back plate 47, and the air outlet body has a diameter of φ100 mm and the air outlet angle of the fifth air outlet 19. When using the one inclined 12.5 ° rearward from the vertical direction The louvers 20 to 24 provided in the third space 7 and the fourth space 8 are 45 ° from the seat rearward direction in the horizontal direction and the vertical direction. The seat is tilted 30 ° toward the rear of the seat.

  FIG. 7 is a table showing the flow velocity at each measurement point under this condition. As shown in the figure, under these conditions, the distance b from the back plate 47 is 10 cm, the height c is 66 cm, and the flow velocity at the measuring point of 95 cm is 0.29 m / s and 0.28 m / s, respectively. Although it exceeds 25 m / s, the flow velocity is 0.25 m / s or less at other measurement points where the distance b from the back plate 47 is 13 cm or more, and at the measurement point at the position corresponding to the back of the lower limbs, It is 0.05 m / s, which is much lower than 0.25 m / s, and it can be seen that the possibility that the spectator seated on the seat feels uncomfortable is low. In addition, at the measurement point where the distance b from the back plate 47 is less than 7 cm, the flow velocity is very high, and it can be seen that an air flow is generated along the back plate 47 due to the Coanda effect.

<Condition 2-2> On the floor surface without a step, the air outlet of the present embodiment is provided at a distance a = 4.5 cm from the back plate 47, and the air outlet body has a diameter of φ100 mm and the air outlet angle of the fifth air outlet 19. When using the one inclined 12.5 ° rearward from the vertical direction The louvers 20 to 24 provided in the third space 7 and the fourth space 8 are 45 ° from the seat rearward direction in the horizontal direction and the vertical direction. The seat is tilted 30 ° toward the rear of the seat.

  FIG. 8 is a table showing the flow velocity at each measurement point under this condition. As shown in the figure, in this condition, the flow velocity at the measurement point where the distance b from the back plate 47 is 10 cm and the height c is 95 cm is 0.28 m / s, which exceeds 0.25 m / s. At other measurement points where the distance b from the back plate 47 is 10 cm or more, the flow velocity is 0.25 m / s or less, and at the measurement point at the position corresponding to the back of the lower limb, 0.18 m / s. It is lower than 0.25 m / s, and it is understood that the possibility that the spectator seated on the seat feels uncomfortable is low. Further, similarly to Condition 2-1, at the measurement point where the distance b from the back plate 47 is less than 7 cm, the flow velocity is very high, and it can be seen that an air flow is generated along the back plate 47 due to the Coanda effect.

<Condition 3-1> On the floor surface without a step, the outlet of the present embodiment is provided at a position at a distance a = 3.25 cm from the back plate 47, and the outlet body is φ100 mm and the fifth outlet opening 19 is blown out. When using an angle inclined 15 ° backward from the vertical direction Note that the louvers 20 to 24 provided in the third space 7 and the fourth space 8 are 45 ° horizontally from the seat rear direction and the vertical direction. The seat is tilted 30 ° toward the rear of the seat.

  FIG. 9 is a table showing the flow velocity at each measurement point under this condition. As shown in the figure, in this condition, the flow velocity at the measurement point where the distance b from the back plate 47 is 10 cm and the height c is 66 cm is 0.27 m / s, which exceeds 0.25 m / s. At other measurement points where the distance b from the back plate 47 is 10 cm or more, the flow velocity is 0.25 m / s or less, and at the measurement point at the position corresponding to the back of the lower limb, 0.06 m / s. Therefore, it is found that the possibility that the audience seated on the seat feels uncomfortable is low. In addition, at the measurement point where the distance b from the back plate 47 is less than 7 cm, the flow velocity is very high, and it can be seen that an air flow is generated along the back plate 47 due to the Coanda effect.

<Condition 3-2> On the floor surface without a step, the outlet of the present embodiment is provided at a position at a distance a = 4.0 cm from the back plate 47, and the outlet body is φ100 mm and the outlet of the fifth outlet opening 19 is blown out. When using an angle inclined 15 ° backward from the vertical direction Note that the louvers 20 to 24 provided in the third space 7 and the fourth space 8 are 45 ° horizontally from the seat rear direction and the vertical direction. The seat is tilted 30 ° toward the rear of the seat.

  FIG. 10 is a table showing the flow velocity at each measurement point under this condition. As shown in the figure, under this condition, the flow velocity is 0.25 m / s or less at other measurement points where the distance b from the back plate 47 is 10 cm or more, and the measurement point at the position corresponding to the back of the lower limbs. Then, it is 0.13 m / s, which is much lower than 0.25 m / s, and it can be seen that there is a low possibility that the spectator seated on the seat feels uncomfortable. In addition, at the measurement point where the distance b from the back plate 47 is less than 7 cm, the flow velocity is very high, and it can be seen that an air flow is generated along the back plate 47 due to the Coanda effect.

<Condition 4-1> On the floor surface having a level difference (32 cm), the air outlet of the present embodiment is provided at a position where the distance a from the back plate 47 is 4.0 cm, and the outlet body is φ100 mm, the fifth air outlet. In the case of using the 19 blow angle inclined 12.5 ° backward from the vertical direction In this condition, the distance from the back of the seat to the rear floor lift A is 1 cm, 2 cm, and 3 cm, respectively. The air velocity at the measurement point at the position corresponding to the back of the lower limb was measured.

FIG. 11 is a table showing the flow velocity at the measurement point at the position corresponding to the back of the lower limb in each case where the distance from the back of the seat to the rear floor kick-up A is 1 cm, 2 cm, and 3 cm.
As shown in the figure, when the distance from the back of the seat to the rear floor lift A is 1 cm, the flow velocity at the measurement point at the position corresponding to the back of the lower limb is 0.22 m / s, which is very low at 0.25 m / s. It is close. On the other hand, in the case of 2cm and 3cm, it is far below 0.11m / s, 0.04m / s and 0.25m / s. It can be seen that it is preferable.

<Condition 4-2> On the floor surface with a level difference (32 cm), the distance from the back of the seat to the rear floor kick-up A is 2 cm, and the distance a from the rear floor kick-up A is 5.0 cm. In the case where a blower outlet of the form is provided, the blower outlet body is φ100 mm, and the blowout angle of the fifth blowout opening 19 is inclined 12.5 ° rearward from the vertical direction. In addition, in the third space 7 and the fourth space 8 The louvers 20 to 24 provided in are inclined 45 ° from the seat rear direction in the horizontal direction and 30 ° from the vertical direction to the seat rear direction.

  FIG. 12 is a table showing the flow velocity at each measurement point under this condition. As shown in the figure, under this condition, the flow velocity is 0.25 m / s or less at the measurement point where the distance b from the back plate 47 is 10 cm or more, and 0 at the measurement point at the position corresponding to the back of the lower limb. 0.09 m / s, which is much lower than 0.25 m / s, indicating that the possibility that the spectator seated on the seat feels uncomfortable is low. Further, at the measurement point where the distance b from the back plate 47 is less than 7 cm, the flow velocity is high and the airflow along the back plate 47 although it is slightly lower than the conditions 2-1 to 2 and 3-1 to 2. It turns out that has occurred.

<Condition 4-3> On the floor surface with a level difference (32 cm), the distance from the back of the seat to the rear floor kick A is 3 cm, and the distance a from the rear floor kick A is 5.0 cm. In the case where a blower outlet of the form is provided, the blower outlet body is φ100 mm, and the blowout angle of the fifth blowout opening 19 is inclined 12.5 ° rearward from the vertical direction. In addition, in the third space 7 and the fourth space 8 The louvers 20 to 24 provided in are inclined 45 ° from the seat rear direction in the horizontal direction and 30 ° from the vertical direction to the seat rear direction.

  FIG. 13 is a table showing the flow velocity at each measurement point under this condition. As shown in the figure, the flow velocity at the measurement point where the distance b from the back plate 47 is 10 cm and the height c is 95 cm is 0.27 m / s, which exceeds 0.25 m / s. At other measurement points where the distance b from the face plate 47 is 10 cm or more, the flow velocity is 0.25 m / s or less, and at the measurement points at the position corresponding to the back of the lower limbs, 0.04 m / s and 0.25 m. / S is greatly below, and it can be seen that the audience seated in the seat is less likely to feel uncomfortable. Further, at the measurement point where the distance b from the back plate 47 is less than 7 cm, the flow velocity is high and the airflow along the back plate 47 although it is slightly lower than the conditions 2-1 to 2 and 3-1 to 2. It turns out that has occurred.

  According to this experiment, in the conventional air outlet body, an air flow with a flow velocity exceeding 0.25 m / s is generated in the vicinity of the lower limbs of the audience seated on the seat. It was confirmed that the airflow in the vicinity could be suppressed to 0.25 m / s or less, and that an airflow along the back plate 47 of the seat was generated due to the Coanda effect. Furthermore, it was confirmed that the above-described effect can be obtained even when the floor surface is flat or there is a step on the floor surface.

  As described above, according to the present embodiment, the air outlet 1 is provided on the floor surface below the seat 45, and the conditioned air is blown from the air outlet 1 toward the back plate 47. The conditioned air rises along the back plate 47 in the chair back rising air region 50 due to the Coanda effect. As a result, no airflow is generated in the vicinity of the lower limbs of the audience seated on the seat 45, and it is possible to prevent the audience from feeling uncomfortable.

In addition, an upward air flow is generated by the Coanda effect, and the conditioned air is raised by the air flow, so that a temperature difference within the height of the living area can be reduced.
Further, in order to generate an upward airflow due to the Coanda effect in this way, it is only necessary to blow conditioned air from the air outlet provided on the floor surface below the seat 45 toward the lower end of the back plate 47. The degree of freedom in the arrangement of the air outlets is increased, and the restrictions on design and construction are reduced.

Further, since the air blown from the front of the seat air-conditioning floor outlet 1 is blown so as to spread over a wide range in the lateral direction of the seat 45, variation in the speed of the air flow in the lateral direction of the chair back ascending air region 50 is suppressed. be able to.
Moreover, since there is no restriction | limiting in the shape of a blower outlet like this embodiment, and it can be made circular, a design and construction cost can be reduced.

In addition, although this embodiment demonstrated the case where a blower outlet body was provided in the circular blower hole, this invention can be applied not only to this but to a blower hole of shapes other than circles, such as a rectangular shape. In such a case, the outlet body may be formed in accordance with the shape of the outlet hole.
Furthermore, in this embodiment, the first space 5 and the second space 6 are adjusted by adjusting the cross-sectional trapezoidal shape and the mounting angle of the first louver 10 to the fifth louver 14 provided in the first space 5 and the second space 6. The conditioned air is blown out from the space 6 in the vertical direction or toward the rear of the seat, and the mounting angles of the first louver 20 to the fifth louver 24 provided in the third space 7 and the fourth space 8 are set. By adjusting, the conditioned air is blown out from the third space 7 and the fourth space 8 toward the rear of the seat so as to spread in the lateral direction of the seat. By adjusting the shape of the cross section, for example, by changing the cross section, it is possible to blow out the conditioned air as described above.

It is a top view which shows the space in which the floor blower outlet for seat air conditioning of this embodiment was provided. It is the sectional view on the AA line in FIG. It is a figure which shows a blower outlet body, (A) is a top view, (B) is BB sectional drawing, (C) is CC sectional drawing, (D) is DD sectional drawing. It is a figure which shows the flow of the conditioned air which was blown off from the blower outlet. It is a figure which shows the mode of experiment. 6 is a table showing the flow velocity at each measurement point in Condition 1. It is a table | surface which shows the flow velocity of each measurement point in conditions 2-1. It is a table | surface which shows the flow velocity of each measurement point in condition 2-2. It is a table | surface which shows the flow velocity of each measurement point in conditions 3-1. It is a table | surface which shows the flow velocity of each measurement point in condition 3-2. It is a table | surface which shows the flow velocity of the measurement point of the position which hits the leg back in condition 4-1. It is a table | surface which shows the flow velocity of each measurement point in conditions 4-2. It is a table | surface which shows the flow velocity of each measurement point in conditions 4-3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air outlet for seat air conditioning 2 Air outlet body 3 Outer frame 3a Main body 3b Flange 4 Inner frame 4a Vertical frame 4b Horizontal frame 5 1st space 6 2nd space 7 3rd space 8 4th space 10 1st louver 11 2nd louver 12 3rd louver 13 4th louver 14 5th louver 15 1st blowing opening 16 2nd blowing opening 17 3rd blowing opening 17a, 17b, 17c small blowing opening 18 4th blowing opening 19 5th blowing opening 20 1st louver 21 2nd louver 22 3rd louver 23 4th louver 24 5th louver 25 1st opening 26 2nd opening 27 3rd opening 28 4th opening 29 5th opening 30 6th opening 31 1st guide vane 32 2nd guide Vane 40 Floor 41 Blow-out hole 45 Seat 46 Leg 47 Back plate 48 Seat surface 50 Chair rear rising air area

Claims (7)

An air conditioning system for a space where a seat with a backrest is installed,
An air outlet is provided on the floor below the seat;
The air outlet is
From the portion on the rear side of the seat, blown out the conditioned air substantially vertically upward or obliquely upward to the rear,
An air conditioning system configured to blow out conditioned air from a portion on the front side of the seat so as to spread in a lateral direction of the seat obliquely upward rearward. The air conditioning system according to claim 1,
The air outlet is
The air-conditioned air is blown out from at least a part of the rear side portion of the seat so as to spread in the lateral direction of the seat, substantially vertically upward or obliquely upward rearward. Air conditioning system. A method of air conditioning a space in which a seat with a backrest is installed,
A blower outlet is provided on the floor below the seat,
While blowing the conditioned air from the rear side portion of the air outlet toward the upper side substantially obliquely upward or backward, obliquely upward,
An air conditioning method in which conditioned air is blown out from the front side portion of the air outlet toward the rear side in an obliquely upward direction so as to spread in the lateral direction of the seat. An air outlet member attached to an air outlet of air-conditioned air provided on a floor surface below a seat having a backrest,
A frame formed in a cylindrical shape;
A plurality of louvers provided in the frame body so as to incline toward the rear of the seat,
The air outlet member formed so that the conditioned air passing between the plurality of louvers blows out toward the vicinity of the lower portion of the backrest. The outlet member according to claim 4,
The air outlet is provided on a floor surface substantially below the backrest,
The frame body is divided into a front air outlet formed of an opening formed in a front portion of the seat and a rear air outlet formed in a rear portion of the seat,
The plurality of louvers are
A front louver installed to be inclined obliquely upward toward the rear in the front air outlet;
A blowout outlet member comprising: a rear louver installed in the rear blowout opening so as to be inclined obliquely upward in a substantially vertical direction or rearward direction. The air outlet member according to claim 5,
The front air outlet is divided into a pair of air outlets by a frame member provided on a substantially central axis in the lateral direction of the seat,
The front louvers are provided in the pair of air outlets so as to incline obliquely upward toward the rear and to incline in directions away from the central axis, respectively. . The air outlet member according to claim 5 or 6,
A blowout port member comprising a guide vane that is inclined obliquely upward in a direction away from a substantially central axis in a lateral direction of the seat between the rear louvers.