Air blowing device

Abstract

To provide an improved and novel air blowing device that enables air to be blown at a higher flow rate in any direction over a wider range. [Solution] When the control device for the air blowing device is instructed to blow air in the direction that results in the maximum deviation in one vertical direction, it sets the opening adjustment section of the other vertical passage to the maximum opening and the other opening adjustment sections to the minimum opening. When the control device is instructed to blow air in the direction that results in the maximum deviation in one horizontal direction, it sets the opening adjustment section of the other horizontal passage to the maximum opening and the other opening adjustment sections to the minimum opening. Furthermore, when the control device is instructed to blow air in the direction that results in the maximum deviation in both the horizontal and vertical directions, it controls the opening adjustment sections of the other horizontal passage and the other vertical passage to the maximum opening and the other opening adjustment sections to the minimum opening.

Description

Technical Field

[0001] The present invention relates to an air blowing device.

Background Art

[0002] Conventionally, there has been known an air blowing device provided with four air passages for blowing air in different directions through air outlets, and capable of changing the blowing direction of the air from the air outlets by changing the opening degrees of dampers provided in each air passage (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In this type of air blowing device, for example, it would be beneficial if air could be blown out in a larger flow rate in an arbitrary blowing direction over a wider range.

[0005] Therefore, an object of the present invention is to provide an improved and novel air blowing device capable of blowing out air in a larger flow rate in an arbitrary blowing direction, for example.

Means for Solving the Problems

[0006] The air blowing device of the present invention is provided with, for example, an outlet that blows airflow backward, a passage that passes through a position shifted upward from the outlet in a front view and directs airflow downward and backward to the outlet, a passage that passes through a position shifted downward from the outlet in a front view and directs airflow upward and backward to the outlet, a passage that passes through a position shifted to the left from the outlet in a front view and directs airflow to the right and backward to the outlet, and a passage that passes through a position shifted to the right from the outlet in a front view and directs airflow to the left and backward to the outlet, and the passage An air blowing device comprising four opening degree adjustment units provided in each of the passages, capable of changing the opening degree of the passage, and a control device that controls each of the opening degree adjustment units to change the opening degree, wherein when the opening degree of all four opening degree adjustment units is set to the maximum opening degree, air is blown out from the outlet in a first direction which is rearward, and the control device, when instructed to blow in an indicated direction in which there is no lateral displacement with respect to the first direction and the displacement in one of the upward or downward directions is maximum, controls one of the four opening degree adjustment units which is shifted in the other direction with respect to the outlet. When the opening of one opening adjustment unit provided in the passage through the position is controlled to the maximum opening, and the opening of the other three of the four opening adjustment units is controlled to the minimum opening, and when blowing is instructed in an indicated direction in which there is no vertical displacement with respect to the first direction and the displacement to the left or right is the maximum, the opening of one opening adjustment unit provided in the passage through the position shifted to the other of the left or right with respect to the outlet is controlled to the maximum opening, and the opening of the other three of the four opening adjustment units is controlled When the opening is controlled to the minimum opening, and blowing is instructed in the direction in which the deviation to the left or right with respect to the first direction is maximized and the deviation to the upward or downward direction is maximized, the opening of the opening adjustment unit provided in the passage that passes through a position shifted to the other of the left or right with respect to the outlet, and the opening of the opening adjustment unit provided in the passage that passes through a position shifted to the other of the upward or downward with respect to the outlet, are controlled to the maximum opening, and the opening of the other two opening adjustment units of the four opening adjustment units are controlled to the minimum opening.If there is no lateral displacement with respect to the first direction and the instruction is to blow air in a direction that is shifted upward or downward, the opening of one of the four opening adjustment units located in a passage that passes through a position shifted upward or downward relative to the outlet is controlled to the maximum opening, and the openings of the other three of the four opening adjustment units are controlled to be approximately the same, and the opening decreases as the displacement between the first direction and the instruction direction increases. If there is no vertical displacement with respect to the first direction and the instruction is to blow air in a direction that is shifted to the left or right, the opening of one of the four opening adjustment units located in a passage that passes through a position shifted to the left or right relative to the outlet is controlled to the maximum opening, and the four opening adjustment units The other three opening adjustment units are controlled to approximately the same opening, and the opening decreases as the deviation between the first direction and the indicated direction increases. When airflow is instructed in the indicated direction between the first direction and the second direction, where the deviation to the left or right of the first direction is maximum, and the deviation to the up or down direction is maximum, the opening of the opening adjustment unit located in the passage passing through a position shifted to the other of the left or right of the outlet, and the opening of the opening adjustment unit located in the passage passing through a position shifted to the other of the up or down of the outlet, are controlled to the maximum opening, while the other two opening adjustment units are controlled to approximately the same opening, and the opening decreases as the deviation between the first direction and the indicated direction increases.

[0007] In the air blowing device, if blowing is instructed in a direction between the first direction, a second direction in which the deviation to one of the left or right of the first direction is maximum and the deviation to one of the up or down direction is maximum, and a third direction in which there is no left-right deviation from the first direction and the deviation to one of the up or down direction is maximum, the control device may control the opening of the opening adjustment part provided in the passage that passes through a position shifted to the other of the up or down direction from the air outlet among the four opening adjustment parts to the maximum opening. If blowing is instructed in a direction between the first direction, the second direction, and a fourth direction in which there is no up-down deviation from the first direction and the deviation to one of the left or right direction is maximum, the control device may control the opening of the opening adjustment part provided in the passage that passes through a position shifted to the other of the left or right direction from the air outlet among the four opening adjustment parts to the maximum opening.

[0008] In the air blowing device, when blowing is instructed in the first direction and in an instructed direction which is shifted to one of the left and right directions with respect to the first direction and also shifted to one of the upward and downward directions, the control device may control the opening of the opening adjustment unit provided in the passage that passes through a position shifted to one of the left and right directions with respect to the outlet, and the opening adjustment unit provided in the passage that passes through a position shifted to one of the upward and downward directions with respect to the outlet, to approximately the same opening.

[0009] In the air blowing device, when the indicated direction is expressed by the ratio Rud of the amount of deviation to the maximum deviation from the first direction in the vertical direction and Rlr of the amount of deviation to the maximum deviation from the first direction in the horizontal direction, the control device, when blowing is indicated in an indicated direction between the first direction, the second direction and the third direction, controls the opening of the opening adjustment part provided in the passage that passes through a position shifted upward or downward from the outlet among the four opening adjustment parts so that the opening becomes smaller as the ratio Rud increases, and controls the opening adjustment part provided in the passage that passes through a position shifted to the left or right of the outlet among the four opening adjustment parts When comparing the opening degrees using the same ratio Rud, the opening degree may be controlled to decrease as the ratio Rlr decreases. When blowing is instructed in an indicated direction between the first direction, the second direction, and the fourth direction, the opening degree of the opening degree adjustment unit provided in a passage that passes through a position shifted to the left or right of the outlet among the four opening degree adjustment units may be controlled to decrease as the ratio Rlr increases. The opening degree of the opening degree adjustment unit provided in a passage that passes through a position shifted to the other of the above or below the outlet among the four opening degree adjustment units may be controlled to decrease as the ratio Rud decreases when compared using the same ratio Rlr. [Effects of the Invention]

[0010] According to the present invention, for example, it is possible to provide an improved and novel air blowing device that can blow air at a greater flow rate in any blowing direction. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is an exemplary and schematic perspective view of the passage structure included in the air blowing device of the embodiment, viewed from the rear and above. [Figure 2] Figure 2 is an exemplary and schematic perspective view of the passage structure included in the air blowing device of the embodiment, viewed from the front and above. [Figure 3]Figure 3 is an exemplary and schematic perspective view showing a part of the internal structure of the passage structure included in the air blowing device of the embodiment, viewed from above. [Figure 4] Figure 4 is an exemplary and schematic cross-sectional view of the opening adjustment section provided in the passage structure included in the air blowing device of the embodiment. [Figure 5] Figure 5 is an exemplary control block diagram of the air blowing device of the embodiment. [Figure 6] Figure 6 is a schematic diagram showing the orthogonal projection of a unit vector indicating the wind direction of the airflow blown out from the air blowing device of the embodiment onto a virtual plane along the vertical and horizontal directions. [Figure 7] Figure 7 is a schematic diagram showing the orthogonal projection of a unit vector indicating the wind direction of the airflow blown out from the air blowing device of the embodiment onto a virtual plane along the left-right and front-back directions. [Figure 8] Figure 8 is a matrix diagram that discretely shows the opening degrees of the opening adjustment unit corresponding to the combination of ratios when the instruction direction input to the control device of the embodiment is expressed as a combination of the ratio of the amount of deviation to the maximum amount of deviation from the first direction in the vertical direction and the ratio of the amount of deviation to the maximum amount of deviation from the first direction in the horizontal direction, and is a diagram of the case when the instruction direction is shifted upward and to the left with respect to the first direction. [Figure 9] Figure 9 is a matrix diagram similar to Figure 8, but where the indicated direction is shifted upward and to the right relative to the first direction. [Figure 10] Figure 10 is a matrix diagram similar to Figure 8, but where the indicated direction is shifted downward and to the left relative to the first direction. [Figure 11] Figure 11 is a matrix diagram similar to Figure 8, but where the indicated direction is shifted downward and to the right relative to the first direction. [Modes for carrying out the invention]

[0012] Exemplary embodiments of the present invention are disclosed below. The configurations of the embodiments shown below, as well as the actions and results (effects) brought about by such configurations, are examples. The present invention can be realized by configurations other than those disclosed in the following embodiments. Further, according to the present invention, it is possible to obtain at least one of various effects (including derivative effects) obtained by the configuration.

[0013] In this specification, ordinal numbers may be given for convenience in distinguishing directions, positions, members, mechanisms, etc. Also, ordinal numbers do not indicate priority or order, nor do they specify a number.

[0014] Also, in this specification, the rear is the direction of air blowing from the air outlet, the front is the opposite direction of the rear, and is the direction when viewed from the front with respect to the air outlet. The upper side is substantially vertically upward, and the lower side is substantially vertically downward. The left and right sides are substantially along the horizontal direction, and are the actions and the right side in a front view when looking at the front. In each figure, the direction B indicating the rear is represented by arrow B, the direction F indicating the front is represented by arrow F. Also, the direction U indicating the upper side is represented by arrow U, the direction D indicating the lower side is represented by arrow D, the direction L indicating the left side is represented by arrow L, and the direction R indicating the right side is represented by arrow R. Each direction has no relation to the direction of a vehicle or the like on which the air blowing device is installed.

[0015] [Air Blowing Device] FIG. 1 is a perspective view when viewed from the front and above of the passage structure 20 included in the air blowing device 100 (see FIG. 5), FIG. 2 is a perspective view when viewed from the rear and above of the passage structure 20, and FIG. 3 is a perspective view in which a part of the internal structure is seen through when viewed from the front and above of the passage structure 20.

[0016] As shown in FIGS. 1 to 3, the passage structure 20 is configured to be able to introduce four airflows, namely the branch airflows Au, Ad, Al, and Ar, from the front. In the housing 20a of the passage structure 20, four air passages 21U, 21D, 21L, and 21R (see FIGS. 2 and 3) for flowing the respective branch airflows Au, Ad, Al, and Ar are provided by partitioning its interior with a wall. The four air passages 21U, 21D, 21L, and 21R communicate with a collecting portion 20c (see FIGS. 1 and 3) as a space provided in front of the air outlet 20b via communication ports 21Ua, 21Da, 21La, and 21Ra, respectively. An air current A in which a plurality (maximum four) of the branch airflows Au, Ad, Al, and Ar are integrated in the collecting portion 20c, or an air current A based on one of the branch airflows Au, Ad, Al, and Ar passing through the collecting portion 20c is blown backward from an air outlet 20b provided at the rear end of the housing 20a. Note that the air passages 21U, 21D, 21L, and 21R are an example of passages. Also, the collecting portion 20c may also be referred to as a manifold.

[0017] As shown in FIG. 3, the air passage 21U through which the branch airflow Au flows passes through a position shifted upward with respect to the air outlet 20b, so that an air current flows downward and backward from that position toward the air outlet 20b. The air passage 21D through which the branch airflow Ad flows passes through a position shifted downward with respect to the air outlet 20b, so that an air current flows upward and backward from that position toward the air outlet 20b. The air passage 21L through which the branch airflow Al flows passes through a position shifted leftward with respect to the air outlet 20b, so that an air current flows rightward and backward from that position toward the air outlet 20b. Also, the air passage 21R through which the branch airflow Ar flows passes through a position shifted rightward with respect to the air outlet 20b, so that an air current flows leftward and backward from that position toward the air outlet 20b. Hereinafter, the air passage 21U is simply referred to as the upper air passage 21U, the air passage 21D is simply referred to as the lower air passage 21D, the air passage 21L is simply referred to as the left air passage 21L, and the air passage 21R is simply referred to as the right air passage 21R.

[0018] As shown in Figures 2 and 3, dampers 22 are provided in each air passage 21U, 21D, 21L, and 21R. Figure 4 is a side view of the damper 22. As shown in Figure 3, the damper 22 is provided in front of each air passage 21U, 21D, 21L, and 21R. As shown in Figure 4, the damper 22 is configured as a so-called butterfly valve. The damper 22 has a peripheral wall 22a and a valve body 22b. The peripheral wall 22a is part of the housing 20a and constitutes part of the air passages 21U, 21D, 21L, and 21R. The valve body 22b is provided so as to be movable between an open position Po, in which the cross-section of the peripheral wall 22a is open, and a closed position Pc, in which it is closed. In this embodiment, the valve body 22b is provided so as to be rotatable around a central axis C, but the structure is not limited to this. Hereafter, the opening degree at the open position Po will be referred to as the maximum opening degree, and the opening degree at the closed position Pc will be referred to as the minimum opening degree. Note that the damper 22 does not need to be fully closed at the closed position Pc. Also, the damper 22 is not limited to a butterfly valve. The damper 22 is an example of an opening degree adjustment unit.

[0019] Figure 5 is a control block diagram of the air blowing device 100. The control device 10 controls the opening degree of each of the four dampers 22 and the operation of the blower 23 (on / off, discharge flow rate, etc.) based on instruction signals received from the input device 30. The input device 30 includes, for example, mechanical input devices such as a touch panel, keyboard, switch, and joystick, as well as a device including a microphone for recording instruction voices and a device including a camera for photographing the operator's instruction operations. The control device 10 acquires the instruction direction based on the data input by the input device 30. The blower 23 rotates a fan with a motor to generate airflow. In this embodiment, as an example, one blower 23 supplies tributaries Au, Ad, Al, and Ar to all four air passages 21U, 21D, 21L, and 21R. However, the air blower 100 may be equipped with a separate blower 23 for each air passage 21U, 21D, 21L, 21R, or it may be equipped with multiple blowers 23 that are shared by multiple air passages.

[0020] In the passage structure 20, when all four dampers 22 are at their maximum opening, an airflow A formed by the integration of all four tributaries Au, Ad, Al, and Ar at the collection section 20c is blown out from the outlet 20b. In this specification, the direction B from which the airflow A is blown out in this case is defined as the rear. Direction B is an example of a first direction.

[0021] [Airflow direction control] Figure 6 shows the orthogonal projection of a unit vector indicating the wind direction at the center of the outlet 20b of an airflow A having an upward component onto the UB plane (a virtual plane along directions U and B). In Figure 6, the orthogonal projection of vector Aumax corresponds to the case where the upward deviation of airflow A with respect to direction B (absolute value of the inclination angle θumax) is maximum, and the orthogonal projection of vector Aiu corresponds to the wind direction requested by the operator of the input device 30 (hereinafter referred to as the indicated direction). In this case, the vertical deviation of the indicated direction with respect to direction B can be expressed by the absolute value of the inclination angle θiu, and furthermore, the ratio Rud (=|θiu| / |θumax|) obtained by dividing the absolute value of the inclination angle θiu by the absolute value of the inclination angle θumax can represent the degree of vertical deviation of the indicated direction with respect to direction B (ratio to the maximum deviation). Similarly, when the indicated direction is shifted downward relative to direction B, the degree of the vertical shift in the indicated direction relative to direction B can be expressed by the ratio Rud.

[0022] On the other hand, Figure 7 shows the orthogonal projection of a unit vector indicating the wind direction at the center of the outlet 20b of airflow A, which has a component directed to the left, onto the LB plane (a virtual plane along directions L and B). In Figure 7, the orthogonal projection of vector Almax corresponds to the case where the amount of leftward deviation of airflow A with respect to direction B (absolute value of the inclination angle θlmax) is maximum, and the orthogonal projection of vector Ail corresponds to the indicated direction. In this case, the amount of left-right deviation of the indicated direction with respect to direction B can be expressed by the absolute value of the inclination angle θil, and furthermore, the degree of left-right deviation of the indicated direction with respect to direction B (ratio to the maximum deviation) can be expressed by the ratio Rlr (=|θil| / |θlmax|) obtained by dividing the absolute value of the inclination angle θil by the absolute value of the inclination angle θlmax. Similarly, when the indicated direction is shifted to the right with respect to direction B, the degree of left-right deviation of the indicated direction with respect to direction B can also be expressed by the ratio Rlr. Note that the inclination angles θumax and θiu may differ depending on the inclination angles θlmax and θil, and the inclination angles θlmax and θil may differ depending on the inclination angles θumax and θiu.

[0023] The control device 10 can obtain the ratio Rud,Rlr as the direction to indicate based on the data input by the input device 30. The ratio Rud,Rlr may be the value input to the input device 30, or it may be a value calculated by the control device 10 from the data input to the input device 30.

[0024] Figures 8-11 are matrix diagrams showing the set values ​​for the opening degree of each damper 22 for the combinations of ratio Rud and ratio Rlr values ​​described above. Within the large frames corresponding to each value of ratio Rud and Rlr (e.g., P1, P21, P31, P41, etc.), the value in the upper small frame is the opening degree Ou of the damper 22 installed in the upper air passage 21U, the value in the lower small frame is the opening degree Od of the damper 22 installed in the lower air passage 21D, the value in the left small frame is the opening degree Ol of the damper 22 installed in the left air passage 21L, and the value in the right small frame is the opening degree Or of the damper 22 installed in the right air passage 21R. The opening degrees of each damper 22 are shown as a numerical value (%) from 0 to 100, where 0 is the minimum opening degree and 100 is the maximum opening degree. Figure 8 shows the cases where the indicated direction is shifted upward and to the left relative to direction B, Figure 9 shows the cases where the indicated direction is shifted upward and to the right relative to direction B, Figure 10 shows the cases where the indicated direction is shifted downward and to the left relative to direction B, and Figure 11 shows the cases where the indicated direction is shifted downward and to the right relative to direction B.

[0025] Through diligent research, the inventors have discovered that by controlling the damper 22 with the control device 10 as shown in (1) to (11) below, a more focused airflow A with a larger flow rate over a wider range can be obtained in any indicated direction.

[0026] (1) When the indicated direction has no lateral deviation relative to direction B (first direction, corresponding to the main frame P1) and the deviation is greatest in either the upward or downward direction, the ratio Rud is 100 and the ratio Rlr is 0. In this case, the control device 10 sets the opening of the damper 22 provided in the air passage (21D or 21U) that passes through a position shifted in the other direction of upward or downward relative to the outlet 20b to the maximum opening (100), and the openings of the other three dampers 22 to the minimum opening (0). That is, as shown in the main frame P31 in Figures 8 and 9, when there is no lateral deviation relative to direction B and the deviation is greatest in the upward direction, the opening of the damper 22 provided in the lower air passage 21D becomes 100, and the openings of the other three dampers 22 become 0. Furthermore, as shown in the main frame P32 in Figures 10 and 11, when there is no lateral displacement with respect to direction B and the downward displacement is at its maximum, the opening of the damper 22 provided in the upper air passage 21U becomes 100, and the openings of the other three dampers 22 become 0. This makes it possible to change the direction of air discharge in the vertical direction over the widest possible range within the passage structure 20 included in the air discharge device 100. Alternatively, corresponding to the main frame P31, the opening of the damper 22 provided in the air passage (21U or 21D) that passes through a position shifted to one of the upper or lower directions may be set to the minimum opening (0), and the openings of the other three dampers 22 to the maximum opening (100), thereby obtaining an airflow directed upward or downward with respect to direction B. In this case, when changing the discharge direction from direction B to one of the upper or lower directions, only the damper 22 provided in the air passage (21U or 21D) needs to be moved, making control easier. In the passage structure 20 included in the air blowing device 100, such control allows the blowing direction to be directed more upward or downward, and a more focused airflow A can be obtained.

[0027] (2) When the direction of indication has no vertical deviation relative to direction B and the deviation to the left or right is maximum, the ratio Rlr is 100 and the ratio Rud is 0. In this case, the control device 10 sets the opening of the damper 22 provided in the air passage (21R or 21L) that passes through a position shifted to the other of the left or right relative to the outlet 20b to the maximum opening (100), and the openings of the other three dampers 22 to the minimum opening (0). That is, as shown in the main frame P41 in Figures 8 and 10, when there is no vertical deviation relative to direction B and the deviation to the left is maximum, the opening of the damper 22 provided in the right air passage 21R becomes 100, and the openings of the other three dampers 22 become 0. Furthermore, as shown in the main frame P42 in Figures 9 and 11, when there is no vertical displacement with respect to direction B and the displacement to the right is maximum, the opening of the damper 22 provided in the left air passage 21L becomes 100, and the openings of the other three dampers 22 become 0. This makes it possible to change the direction of air discharge in the left-right direction over the widest possible range within the passage structure 20 included in the air discharge device 100. Alternatively, by setting the opening of the damper 22 provided in the air passage (21L or 21R) that passes through a position shifted to one of the left or right sides corresponding to the main frame P41 to the minimum opening (0), and the openings of the other three dampers 22 to the maximum opening (100), an airflow directed to one of the left or right sides with respect to direction B can be obtained. In this case, when changing the blowing direction from direction B to either the left or the right, only the damper 22 provided in the air passage (21L or 21R) needs to be moved, making control easier. In the passage structure 20 included in the air blowing device 100, such control allows the blowing direction to be directed more to the left or right, and a more focused airflow A can be obtained.

[0028] (3) When the direction of indication is such that the deviation to the left or right of direction B is the greatest and the deviation to the up or down of direction B is the greatest, then the ratio Rlr is 100 and the ratio Rud is also 100. In this case, the control device 10 sets the opening of the damper 22 provided in the air passage (21R or 21L) that passes through a position shifted to the other of the left or right of the outlet 20b, and the opening of the damper 22 provided in the air passage (21D or 21U) that passes through a position shifted to the other of the up or down of the outlet 20b, to the maximum opening (100), and the opening of the other two dampers 22 to the minimum opening (0). In other words, as shown in the main frame P21 in Figure 8, when the displacement to the left with respect to direction B is maximum and the displacement upward is maximum, the opening of the dampers 22 provided in the right air passage 21R and the lower air passage 21D becomes 100, and the opening of the other two dampers 22 becomes 0. As shown in the main frame P22 in Figure 9, when the displacement to the right with respect to direction B is maximum and the displacement upward is maximum, the opening of the dampers 22 provided in the left air passage 21L and the lower air passage 21D becomes 100, and the opening of the other two dampers 22 becomes 0. As shown in the main frame P23 in Figure 10, when the displacement to the left with respect to direction B is maximum and the displacement downward is maximum, the opening of the dampers 22 provided in the right air passage 21R and the upper air passage 21U becomes 100, and the opening of the other two dampers 22 becomes 0. Furthermore, as shown in the main frame P24 in Figure 11, when the displacement to the right with respect to direction B is maximum and the displacement downward is maximum, the opening of the dampers 22 provided in the left air passage 21L and the upper air passage 21U becomes 100, and the opening of the other two dampers 22 becomes 0. As a result, a more focused airflow A with a larger flow rate is obtained in the direction in which the displacement to either the upward or downward direction is maximum and the displacement to either the left or right direction is maximum.

[0029] (4) When the indicated direction is not the maximum value, but there is no lateral deviation with respect to direction B, and there is a deviation in either the upward or downward direction, the ratio Rud is greater than 0 and less than 100, and the ratio Rlr is 0. In this case, the control device 10 sets the opening of the damper 22 provided in the air passage (21D or 21U) that passes through a position shifted upward or downward with respect to the outlet 20b to the maximum opening (100), and sets the openings of the other three dampers 22 to approximately the same degree, while decreasing the opening as the vertical deviation of the indicated direction with respect to direction B increases, that is, as the ratio Rud increases. That is, as shown in the column where the ratio Rlr is 0 in Figures 8 and 9, when the indicated direction is shifted upward with respect to direction B, the opening of the damper 22 provided in the lower air passage 21D is 100, and the openings of the other three dampers 22 are the same, and decrease as the ratio Rud increases. Furthermore, as shown in the column with ratio Rlr = 0 in Figures 10 and 11, when the indicated direction is shifted downward relative to direction B, the opening of the damper 22 provided in the upper air passage 21U is 100, and the openings of the other three dampers 22 are the same, and decrease as the ratio Rud increases. This results in a more focused airflow A with a larger flow rate that is directed in the indicated direction which is shifted upward or downward, without any leftward or rightward shift relative to direction B.

[0030] (5) When the indicated direction has no vertical deviation relative to direction B, but has a deviation to either the left or the right, and is not at the maximum value, the ratio Rud is 0, and the ratio Rlr is greater than 0 and less than 100. In this case, the control device 10 sets the opening of the damper 22 provided in the air passage (21R or 21L) that passes through a position shifted to the other of the left and right relative to the outlet 20b to the maximum opening (100), sets the openings of the other three dampers 22 to approximately the same degree, and decreases the opening as the horizontal deviation of the indicated direction relative to direction B increases, that is, as the ratio Rlr increases. That is, as shown in the row in Figures 8 and 10 where the ratio Rud is 0, when the indicated direction is shifted to the left relative to direction B, the opening of the damper 22 provided in the right air passage 21R is 100, and the openings of the other three dampers 22 are the same, and decrease as the ratio Rlr increases. Furthermore, as shown in the row where the ratio Rud is 0 in Figures 9 and 11, when the indicated direction is shifted to the right relative to direction B, the opening of the damper 22 provided in the left air passage 21L is 100, and the openings of the other three dampers 22 are the same, and decrease as the ratio Rlr increases. This results in a more focused airflow A with a larger flow rate that is directed in the indicated direction which is shifted to the left or right, without any upward or downward shift relative to direction B.

[0031] (6) When the indicated direction is a direction between direction B and a second direction in which the deviation to the left or right of direction B is greatest and the deviation to the up or down of direction B is greatest, the values ​​of ratio Rud and ratio Rlr are the same. The second direction corresponds to the general outlines P21 to P24 in Figures 8 to 11. In this case, the control device 10 sets the opening of the damper 22 provided in the air passage (21R or 21L) that passes through a position shifted to the other of the left or right of the outlet 20b, and the opening of the damper 22 provided in the air passage (21D or 21U) that passes through a position shifted to the other of the up or down of the outlet 20b, to the maximum opening (100), and sets the openings of the other two dampers 22 to approximately the same opening, and decreases the opening as the deviation of the indicated direction from direction B increases, that is, as ratio Rud or ratio Rlr increases. That is, as shown in the general framework in Figure 8 where ratios Rud and Rlr are the same value, when the direction of indication shifts to the left and upward relative to direction B, the opening of the damper 22 provided in the right air passage 21R and the opening of the damper 22 provided in the lower air passage 21D are 100, and the openings of the other two dampers 22 are the same, and decrease as ratios Rud and Rlr increase. As shown in the general framework in Figure 9 where ratios Rud and Rlr are the same value, when the direction of indication shifts to the right and upward relative to direction B, the opening of the damper 22 provided in the left air passage 21L and the opening of the damper 22 provided in the lower air passage 21D are 100, and the openings of the other two dampers 22 are the same, and decrease as ratios Rud and Rlr increase. As shown in the general framework of Figure 10 where ratios Rud and Rlr are the same value, when the direction of indication shifts to the left and downward with respect to direction B, the opening of the damper 22 provided in the right air passage 21R and the opening of the damper 22 provided in the upper air passage 21U are 100, and the openings of the other two dampers 22 are the same, and decrease as the ratios Rud and Rlr increase.Furthermore, as shown in the general framework of Figure 11 where the ratio Rud and the ratio Rlr are the same value, when the indicated direction shifts to the right and downward with respect to direction B, the opening of the damper 22 provided in the left air passage 21L and the opening of the damper 22 provided in the upper air passage 21U are 100, and the openings of the other two dampers 22 are the same, and decrease as the ratio Rud,Rlr increases. As a result, a more focused airflow A with a larger flow rate is obtained in the indicated direction between direction B and the second direction.

[0032] (7) When the indicated direction is between direction B, a second direction in which the deviation to one of left or right relative to direction B is greatest and the deviation to one of up or down is greatest, and a third direction in which there is no deviation to the left or right relative to direction B and the deviation to one of up or down is greatest, then ratio Rud is greater than ratio Rlr. The third direction corresponds to the large frame P31 in Figures 8 and 9 or the large frame P32 in Figures 10 and 11. In this case, the control device 10 sets the opening of the damper 22 provided in the air passage (21D or 21U) that passes through a position shifted to the other of up or down relative to the outlet 20b to the maximum opening (100). That is, as shown in the large frame in Figure 8 in which ratio Rud is greater than ratio Rlr, when the indicated direction is shifted to the left and up relative to direction B, the opening of the damper 22 provided in the lower air passage 21D is 100. Furthermore, as shown in the general framework in Figure 9 where ratio Rud is greater than ratio Rlr, even when the indicated direction is shifted to the right and upward relative to direction B, the opening of the damper 22 provided in the lower air passage 21D is 100. This makes it easier to generate an airflow A directed toward the indicated direction that is shifted upward relative to direction B. On the other hand, as shown in the general framework in Figure 10 where ratio Rud is greater than ratio Rlr, even when the indicated direction is shifted to the left and downward relative to direction B, the opening of the damper 22 provided in the upper air passage 21U is 100. Also, as shown in the general framework in Figure 11 where ratio Rud is greater than ratio Rlr, even when the indicated direction is shifted to the right and downward relative to direction B, the opening of the damper 22 provided in the upper air passage 21U is 100. This makes it easier to generate an airflow A directed toward the indicated direction that is shifted downward relative to direction B.

[0033] (8) When the indicated direction is between direction B, the direction in which the deviation to the left or right of direction B is greatest and the deviation to the up or down of direction B is greatest (second direction), and the direction in which there is no vertical deviation from direction B and the deviation to the left or right is greatest (fourth direction), then ratio Rlr is greater than ratio Rud. The fourth direction corresponds to the major frame P41 in Figures 8 and 10 and major frame P42 in Figures 9 and 11. In this case, the control device 10 sets the opening of the damper 22 provided in the air passage (21R or 21L) that passes through a position shifted to the other of the left or right of the outlet 20b to the maximum opening (100). That is, as shown in the major frame in Figure 8 where ratio Rlr is greater than ratio Rud, when the indicated direction is shifted to the left and up of direction B, the opening of the damper 22 provided in the right air passage 21R is 100. Furthermore, as shown in the general framework in Figure 10 where ratio Rlr is greater than ratio Rud, even when the indicated direction is shifted to the left and downward relative to direction B, the opening of the damper 22 provided in the right air passage 21R is 100. This makes it easier to generate an airflow A directed towards the indicated direction shifted to the left relative to direction B. On the other hand, as shown in the general framework in Figure 9 where ratio Rlr is greater than ratio Rud, when the indicated direction is shifted to the right and upward relative to direction B, the opening of the damper 22 provided in the left air passage 21L is 100. Also, as shown in the general framework in Figure 11 where ratio Rlr is greater than ratio Rud, even when the indicated direction is shifted to the right and downward relative to direction B, the opening of the damper 22 provided in the left air passage 21L is 100. This makes it easier to generate an airflow A directed towards the indicated direction shifted to the right relative to direction B.

[0034] (9) When the direction of indication is shifted to one of the left and right sides of direction B, and also shifted to one of the upward and downward sides, the control device 10 sets the opening degree of the damper 22 provided in the air passage (21L or 21R) that passes through a position shifted to one of the left and right sides of the outlet 20b, and the opening degree of the damper 22 provided in the air passage (21U or 21D) that passes through a position shifted to one of the upward and downward sides of the outlet 20b, to be approximately the same. That is, as shown in the outline in Figure 8, when the direction of indication is shifted to the left and upward sides of direction B, the opening degree of the damper 22 provided in the left air passage 21L and the opening degree of the damper 22 provided in the upper air passage 21U are approximately the same. As shown in the general outline in Figure 9, when the indicated direction is shifted to the right and upward relative to direction B, the opening degree of the damper 22 provided in the right air passage 21R and the opening degree of the damper 22 provided in the upper air passage 21U are approximately the same. As shown in the general outline in Figure 10, when the indicated direction is shifted to the left and downward relative to direction B, the opening degree of the damper 22 provided in the left air passage 21L and the opening degree of the damper 22 provided in the lower air passage 21D are approximately the same. Also, as shown in the general outline in Figure 11, when the indicated direction is shifted to the right and downward relative to direction B, the opening degree of the damper 22 provided in the right air passage 21R and the opening degree of the damper 22 provided in the lower air passage 21D are approximately the same. This makes it easier to generate an airflow A that is shifted to one of the left or right directions relative to direction B, and also shifted to one of the upward or downward directions, with relatively simple settings.

[0035] (10) Assuming that the above (9) is satisfied, the following conditions are further set. That is, as described above, when the indicated direction is a direction between direction B (corresponding to the main frame P1), the second direction (corresponding to the main frame P21~P24), and the third direction (corresponding to the main frame P31, P32), the ratio Rud is greater than the ratio Rlr. In this case, the control device 10 makes the opening of the damper 22 provided in the air passage (21U or 21D) that passes through a position shifted to one of the above or below the outlet 20b smaller as the ratio Rud is higher, and makes the opening of the damper 22 provided in the air passage (21R or 21L) that passes through a position shifted to the other of the left or right of the outlet 20b smaller as the ratio Rlr is lower when compared with the same value of ratio Rud. In other words, as shown in the general framework of Figure 8 where ratio Rud is greater than ratio Rlr, when the direction of indication is shifted to the left and upward relative to direction B, the opening degrees of the dampers 22 provided in the upper air passage 21U and the left air passage 21L are approximately the same value and become smaller as ratio Rud increases, while the opening degree of the damper 22 provided in the right air passage 21R becomes smaller as ratio Rlr decreases when compared with the same ratio Rud. As shown in the general framework of Figure 9 where ratio Rud is greater than ratio Rlr, when the direction of indication is shifted to the right and upward relative to direction B, the opening degrees of the dampers 22 provided in the upper air passage 21U and the right air passage 21R are approximately the same value and become smaller as ratio Rud increases, while the opening degree of the damper 22 provided in the left air passage 21L becomes smaller as ratio Rlr decreases when compared with the same ratio Rud. As shown in the general framework of Figure 10 where the ratio Rud is greater than the ratio Rlr, when the direction of indication is shifted to the left and downward with respect to direction B, the openings of the dampers 22 provided in the lower air passage 21D and the left air passage 21L are approximately the same value and become smaller as the ratio Rud increases. The opening of the damper 22 provided in the right air passage 21R becomes smaller as the ratio Rlr decreases when compared with the same ratio Rud.Furthermore, as shown in the general framework of Figure 11 where the ratio Rud is greater than the ratio Rlr, when the indicated direction is shifted to the right and downward relative to direction B, the openings of the dampers 22 provided in the lower air passage 21D and the right air passage 21R are approximately the same value and become smaller as the ratio Rud increases. The opening of the damper 22 provided in the left air passage 21L also becomes smaller as the ratio Rlr decreases when compared with the same ratio Rud. This makes it easier to generate an airflow A directed in the indicated direction with relatively simple settings.

[0036] (11) Assuming that the above (9) is satisfied, the following conditions are further set. That is, as described above, when the indicated direction is between direction B (corresponding to the main frame P1), the second direction (corresponding to the main frame P21~P24), and the fourth direction (corresponding to the main frame P41, P42), the ratio Rlr is greater than the ratio Rud. In this case, the control device 10 sets the opening degree of the damper 22 provided in the air passage (21L or 21R) that passes through a position shifted to one of the left or right sides of the outlet 20b to become smaller as the ratio Rlr is higher, and the opening degree of the damper 22 provided in the air passage (21D or 21U) that passes through a position shifted to the other of the above or below the outlet 20b to become smaller as the ratio Rud is lower when compared with the same value of ratio Rlr. In other words, as shown in the general framework of Figure 8 where ratio Rlr is greater than ratio Rud, when the direction of indication is shifted to the left and upward relative to direction B, the opening degrees of the dampers 22 provided in the upper air passage 21U and the left air passage 21L are approximately the same value and become smaller as ratio Rlr increases, while the opening degree of the damper 22 provided in the lower air passage 21D becomes smaller as ratio Rud decreases when compared with the same ratio Rlr. As shown in the general framework of Figure 9 where ratio Rlr is greater than ratio Rud, when the direction of indication is shifted to the right and upward relative to direction B, the opening degrees of the dampers 22 provided in the upper air passage 21U and the right air passage 21R are approximately the same value and become smaller as ratio Rlr increases, while the opening degree of the damper 22 provided in the lower air passage 21D becomes smaller as ratio Rud decreases when compared with the same ratio Rlr. As shown in the general framework of Figure 10 where the ratio Rlr is greater than the ratio Rud, when the direction of indication is shifted to the left and downward with respect to direction B, the opening degrees of the dampers 22 provided in the lower air passage 21D and the left air passage 21L are approximately the same and become smaller as the ratio Rlr increases. The opening degree of the damper 22 provided in the upper air passage 21U becomes smaller as the ratio Rud decreases when compared with the same ratio Rlr.Furthermore, as shown in the general framework of Figure 11 where the ratio Rlr is greater than the ratio Rud, when the indicated direction is shifted to the right and downward with respect to direction B, the openings of the dampers 22 provided in the lower air passage 21D and the right air passage 21R are approximately the same value and become smaller as the ratio Rlr increases. The opening of the damper 22 provided in the upper air passage 21U also becomes smaller as the ratio Rud decreases when compared with the same ratio Rlr. This makes it easier to generate an airflow A directed in the indicated direction with relatively simple settings.

[0037] As described above, in this embodiment, by appropriately setting the opening degree of the damper 22 according to the indicated direction, a more focused airflow A with a larger flow rate can be generated in any indicated direction. Furthermore, it becomes easier to generate an airflow A directed in any indicated direction over a wider range with relatively simple settings.

[0038] Although embodiments of the present invention have been illustrated above, these embodiments are merely examples and are not intended to limit the scope of the invention. The above embodiments can be implemented in various other forms, and various omissions, substitutions, combinations, and modifications can be made without departing from the spirit of the invention. Furthermore, each configuration, shape, and other specifications (structure, type, orientation, model, size, length, width, thickness, height, number, arrangement, position, material, etc.) can be modified as appropriate.

[0039] For example, the direction of indication and the opening degree of the opening adjustment unit corresponding to that direction may be set in more or fewer steps, or the opening degree between the set values ​​may be calculated by interpolation or other calculations. [Explanation of Symbols]

[0040] 10...Control device 20…Aisle structure 20a... enclosure 20b…Air outlet 20c…Collection area 21D, 21L, 21R, 21U... Air passage (passage) 21Da, 21La, 21Ra, 21Ua…Communication port 22... Damper (opening adjustment part) 22a...peripheral wall 22b... Valve body 23... Blower 30…Input device 100... Air blowing device A...Airflow Ad,Al,Ar,Au…tributaries Ail, Aiu, Almax, Aumax... vectors B…Direction (first direction) D,F,L,R,U…direction C…Central axis Od,Ol,Or,Ou…Opening degree P21, P22, P23, P24, P31, P32, P41, P42... General outline Pc…Closed position Po…open position Rlr,Rud…ratio θil, θiu, θlmax, θumax…Inclination angle

Claims

1. The device is provided with an air outlet that blows air out to the rear, a passage that, when viewed from the front, passes above the air outlet and directs air downward and backward towards the air outlet, a passage that, when viewed from the front, passes below the air outlet and directs air upward and backward towards the air outlet, a passage that, when viewed from the front, passes to the left of the air outlet and directs air to the right and backward towards the air outlet, and a passage that, when viewed from the front, passes to the right of the air outlet and directs air to the left and backward towards the air outlet. The system comprises four opening degree adjustment units provided in each of the aforementioned passages, which are capable of changing the opening degree of the passage, and a control device that controls each of the opening degree adjustment units to change the opening degree. An air blowing device wherein when all four of the opening degree adjustment units are set to their maximum opening, air is blown out from the outlet in a first direction that is rearward, The control device is When an instruction is given for blowing in a direction in which there is no lateral displacement with respect to the first direction and the displacement is greatest in either the upward or downward direction, the opening of one of the four opening adjustment units located in a passage that passes through a position shifted to the other of the upward or downward direction with respect to the outlet is controlled to the maximum opening, and the openings of the other three of the four opening adjustment units are controlled to the minimum opening. When blowing is instructed in a direction where there is no vertical displacement with respect to the first direction and the displacement to the left or right is maximized, the opening of one of the four opening adjustment units located in a passage that passes through a position shifted to the other of the left or right relative to the outlet is controlled to the maximum opening, and the openings of the other three of the four opening adjustment units are controlled to the minimum opening. When a blowout is instructed in a direction in which the deviation to the left or right with respect to the first direction is maximized and the deviation to the upward or downward is maximized, the opening of the opening adjustment unit provided in the passage that passes through a position shifted to the other of the left or right relative to the outlet, and the opening of the opening adjustment unit provided in the passage that passes through a position shifted to the other of the upward or downward relative to the outlet, are controlled to the maximum opening, and the opening of the other two opening adjustment units of the four opening adjustment units are controlled to the minimum opening. When there is no lateral displacement with respect to the first direction and the air is directed to blow in an indicated direction that is shifted upward or downward, the opening of one of the four opening adjustment units located in a passage that passes through a position shifted upward or downward relative to the outlet is controlled to the maximum opening, and the openings of the other three of the four opening adjustment units are controlled to be approximately the same, and the opening is controlled to decrease as the displacement between the first direction and the indicated direction increases. When there is no vertical displacement with respect to the first direction and the airflow is directed in a direction that is shifted to either the left or the right, the opening of one of the four opening adjustment units located in a passage that passes through a position shifted to the other of the left or right relative to the air outlet is controlled to the maximum opening, and the openings of the other three of the four opening adjustment units are controlled to be approximately the same, with the opening decreasing as the displacement between the first direction and the indicated direction increases. When air is directed to blow air in a direction between the first direction and a second direction in which the deviation to the left or right of the first direction is greatest and the deviation to the upward or downward direction is greatest, the opening of the opening adjustment unit provided in a passage that passes through a position shifted to the other of the left or right of the outlet, and the opening of the opening adjustment unit provided in a passage that passes through a position shifted to the other of the upward or downward of the outlet, are controlled to the maximum opening, and the openings of the other two of the four opening adjustment units are controlled to be approximately the same, with the opening decreasing as the deviation between the first direction and the indicated direction increases.

2. The control device is When a blowout is instructed in a direction between the first direction, a second direction in which the deviation to one of the left or right directions with respect to the first direction is greatest and the deviation to one of the upward or downward directions is greatest, and a third direction in which there is no deviation in the left or right direction with respect to the first direction and the deviation to one of the upward or downward directions is greatest, the opening of the opening adjustment unit provided in the passage that passes through the position shifted to the other of the upward and downward directions with respect to the blowout is controlled to the maximum opening. The air blowing device according to claim 1, wherein when blowing is instructed in an indicated direction between the first direction, the second direction, and a fourth direction in which there is no vertical displacement with respect to the first direction and the displacement to the left or right is maximum, the opening of the opening adjustment unit provided in a passage that passes through a position shifted to the other of the left or right of the air outlet among the four opening adjustment units is controlled to the maximum opening.

3. The control device is The air blowing device according to claim 2, wherein when blowing is instructed in the first direction and in an instructed direction which is shifted to one of the left and right directions with respect to the first direction and also shifted to one of the upward and downward directions, the opening of the opening adjustment unit provided in the passage that passes through a position shifted to one of the left and right directions with respect to the air outlet and the opening adjustment unit provided in the passage that passes through a position shifted to one of the upward and downward directions with respect to the air outlet are controlled to be approximately the same opening.

4. When the aforementioned direction of indication is expressed by the ratio Rud of the amount of deviation to the maximum amount of deviation from the first direction in the vertical direction, and the ratio Rlr of the amount of deviation to the maximum amount of deviation from the first direction in the horizontal direction, The control device is When a blowout is instructed in a direction between the first direction, the second direction, and the third direction, The opening degree of the When a blowout is instructed in a direction between the first direction, the second direction, and the fourth direction, The air blowing device according to claim 3, wherein the opening of the opening adjustment unit provided in a passage that passes through a position shifted to the left or right of the air outlet among the four opening adjustment units is controlled to become smaller as the ratio Rl is higher, and the opening of the opening adjustment unit provided in a passage that passes through a position shifted to the other of the above or below of the air outlet among the four opening adjustment units is controlled to become smaller as the ratio Rud is lower when compared with the same value of the ratio Rl.

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