JP6682236B2 - Air blowing device and assembly of the air blowing device - Google Patents

Description

  The present invention includes a housing that defines an air flow path and an air outlet, and an airflow direction adjustment unit that can adjust the flow direction of the air blown from the air outlet through the downstream end of the air flow path. The present invention relates to an air blowing device. Furthermore, the present invention also relates to an assembly of the above air blowing devices.

  BACKGROUND ART Conventionally, an air blowing device has been proposed for the purpose of adjusting the environment inside a room such as an automobile, which controls the flow rate and the flow direction of air for heating and cooling supplied into the room. One of the conventional air blowing devices (hereinafter, also referred to as "conventional device") is a hollow columnar body that defines an outlet (flow passage) for an air flow, and is rotated inside the columnar body. And a plurality of wind direction adjusting plates that are held so as to be possible. In this conventional device, the flow state and the flow direction of the air blown out from the conventional device are manipulated by adjusting the rotation state of the wind direction adjusting plate (the rotation angle around the axis perpendicular to the axis of the columnar body). (See, for example, Patent Document 1).

JP, 2011-079374, A

  When the air blowing device is applied to an automobile, the air blowing device is generally installed around the dashboard of the automobile or the like. However, in recent years, from the viewpoint of improving the aesthetic appearance of the dashboard and its surroundings, the size of the area in which the air blowing device can be installed tends to decrease. Along with this, it is desired to reduce the size of the air blowing device as much as possible without impairing the function of the air blowing device.

  However, as described above, the conventional device is configured to adjust the flow rate and the flow direction of the air blown from the air blowing device by the wind direction adjusting plate. Therefore, it is generally difficult to reduce the size of the entire air blowing device while maintaining the function of the wind direction adjusting plate (adjustment of the flow rate and the flow direction). For example, if the entire air blowing device is inadvertently downsized, the airflow direction adjusting plate also becomes smaller, so the amount of air that the airflow direction adjusting plate can change the flow direction decreases. Due to this, the flow direction of the air flow blown out from the air blowing device may not be adjusted sufficiently. On the other hand, for example, if the size of the air direction adjusting plate is maintained as much as possible and the size of the air blowing device is reduced, the air direction adjusting plate becomes excessively large with respect to the air flow outlet path, so that the air that can pass through the air blowing device may be reduced. The amount of is reduced. Due to this, the flow rate of the air blown from the air blowing device may not be sufficiently secured.

  In view of the above problems, an object of the present invention is to provide an air blowing device that can be downsized without impairing the function of the air blowing device.

The air blowing device according to the present invention for solving the above problems,
It is possible to adjust the flow direction of the air blown out from the air outlet through the “casing” that defines the air flow passage and the air outlet and the downstream end that is the end on the air outlet side of the air flow passage. “Wind direction adjustment unit”.

More specifically, the wind direction adjusting unit,
"Rotation axis" parallel to the opening surface of the outlet,
A "plate" that is eccentrically rotatable about the rotation axis, and
It has a plurality of "fins" which are plate-shaped members that intersect the rotation axis at a plurality of positions lined up on the rotation axis.

Further, each of the plurality of fins is
Inclined with respect to the rotation axis,
It exists in a rotation region that intersects the plate body and is a region through which the plate body passes when the plate body rotates around the rotation axis.

In addition, the housing is
The downstream end is defined by a "downstream-side inner wall surface" that is an inner wall surface that is curved along the rotation region, and the air outlet is formed so as to penetrate the curved inner wall surface and open to the air flow path. Define.

  According to the above configuration, when the rotating shaft rotates, the plate body and the plurality of fins also rotate. As a result, the direction of the flow path defined by the plate body, the plurality of fins, and the inner wall surface on the downstream side in the rotation region changes, or the path from the inlet to the outlet of the flow path changes. The air that has passed through the air flow path defined by the housing and reaches the downstream end flows (guides) along the flow path formed in the rotation region. That is, the air is blown out from the “blowout port” in the direction guided by the flow path.

  More specifically, when the plate body is parallel to the axis of the air flow path (hereinafter, also referred to as “parallel time”), the air that has passed through the air flow path and reached the downstream end is Although it is divided into upper and lower parts by the plate body, it flows along the plate body so as to sandwich the plate body (parallel to the plate body) and blows out from the air outlet. Thus, the plate body does not substantially contribute to the adjustment of the flow direction of the air flow blown from the air blowing device. That is, in this case, the air blown out from the air blowing device blows out mainly in the direction determined by the inclination of the fins.

  On the other hand, when the plate body is perpendicular to the axis of the air flow path (hereinafter, also referred to as “vertical time”), the plate body is configured to rotate eccentrically around the rotation axis as described above. Therefore, the cross-sectional area of the flow path formed in the rotation region is different between the one side of the rotary shaft and the other side. Specifically, since the downstream inner wall surface that defines the downstream end of the air channel is curved along the rotation region, the cross-sectional area of one channel is substantially 0 (zero), The cross-sectional area of the other channel has a value corresponding to the size and shape of the plate body. Then, the air that has passed through the "other flow path" is blown out in a direction determined by the inclination of the fin and the other side of the inner wall surface on the downstream side. At this time, the inclination of the fins with respect to the axis of the air flow path is different from that in the “parallel” state. As a result, the air blown out from the air blowing device in the vertical direction blows out in a direction different from that in the parallel direction.

  Furthermore, when the plate body is in a state between the "parallel time" and the "vertical time" (hereinafter, also referred to as "intermediate time"), the "one flow path" and the "other flow path". The difference in the cross-sectional area between the above and ", and the inclination of the fin with respect to the axis of the air flow path are different from those in the" parallel "and" vertical ". As a result, the air blown out from the air blowing device at the intermediate time blows out in a direction different from that in the parallel and vertical directions.

  As described above, the flow direction of the air blown from the air outlet varies depending on the rotation angle of the rotating shaft of the wind direction adjusting unit. Therefore, by appropriately adjusting the rotation angle of the rotating shaft, it is possible to control the flow direction of the air flow blown out from the air outlet (hereinafter, also referred to as “blow-off air flow” for convenience). That is, the air blowing device according to the present invention can control the blown air flow without the need for the wind direction adjusting plate employed in the conventional device.

  Therefore, the air blowing device according to the present invention can be downsized without impairing the function of the air blowing device.

  Furthermore, the air blowing device according to the present invention does not need to include the wind direction adjusting plate used in the conventional device, and therefore, compared to the conventional device (for example, the mounting position of the wind direction adjusting plate, the size of the wind direction adjusting plate, and The shape of the blowout port can be designed more freely because there is no need to consider the rotation range and the like. For example, as the shape of the air outlet, a shape in consideration of the aesthetics of the air blowing device (for example, an elongated rectangle (having a high aspect ratio) whose length in the height direction is much smaller than the length in the width direction) may be adopted.

  By the way, as described above, the downstream end is defined by the downstream inner wall surface which is the inner wall surface curved along the rotation region. The "curvature along the rotation region" means that the downstream inner wall surface and the rotation region are adjacent to each other with a slight gap so that the plate body can rotate in the rotation region. That is, “curving along the rotation region” does not mean that the inner wall surface on the downstream side completely circumscribes the rotation region. In other words, the downstream side inner wall surface is configured so that the plate body can rotate around the rotation axis without the end portion of the plate body and the downstream side inner wall surface interfering with each other.

  Further, the air outlet is defined so as to penetrate the inner wall surface on the downstream side and open to the air flow path. The term "penetrates the downstream side inner wall surface" means that the air outlet passes through a part of the downstream side inner wall surface. Typically, as described below, the height of the air outlet is smaller than the height of the rotating region (that is, the diameter of the rotating region).

  The rotation angle (of the rotating shaft) of the wind direction adjusting unit is blown, for example, on the portion on the side where the amount of protrusion of the plate body from the rotating shaft is larger (hereinafter, also referred to as the “main portion” of the plate body). The angle facing the outlet side and parallel to the axis of the air flow path can be defined as 0 (zero) degree. With respect to the rotation direction of the rotation shaft, the rotation direction of the rotation shaft when the main portion of the plate body is directed to the upper side of the air blowing device from the angle can be defined as the positive direction. Accordingly, the rotation angle of the rotation axis of the wind direction adjusting unit can be defined as an angle of 0 (zero) degree to 360 degrees corresponding to the direction in which the main portion of the plate body projects.

  The rotation angle (of the rotating shaft) of the wind direction adjusting unit can be adjusted by a desired method. For example, the rotation angle of the rotation shaft can be adjusted to a desired angle by the operator directly operating the rotation shaft via a link member or the like (not shown). Alternatively, the rotation angle of the rotary shaft can be adjusted to a desired angle by using a drive device such as a stepping motor (not shown) according to an instruction from the operator.

  In the air blowing device according to the present invention, the specific configuration of the plurality of fins included in the wind direction adjusting unit can be appropriately determined in consideration of, for example, the control performance of the blown air flow required for the air blowing device.

For example, the wind direction adjustment unit,
It may be configured such that all of the plurality of fins are parallel.

  According to the above configuration, the air that has reached the downstream end is guided in the same direction in any of the plurality of fins, so compared to the case without such a configuration, the blown air The flow direction of the flow can be controlled more accurately. That is, the control performance of the blown air flow is improved.

  The angle of inclination of the fins with respect to the rotating shaft and the plate is not particularly limited, and can be appropriately determined, for example, in consideration of the control performance of the blown air flow required for the air blowing device. Typically, the inclination angle of the fin with respect to the rotation axis is 45 degrees (135 degrees), and the inclination angle of the fin with respect to the plate body is 90 degrees.

Further, the wind direction adjustment unit, for example,
All of the plurality of fins may be configured to have the same size and shape.

  According to the above configuration, the air reaching the downstream end is guided in the same direction by any of the plurality of fins, so that the blowing air flow is greater than when the sizes and shapes of the plurality of fins are not the same. The uniformity (rectifying property) in the flow direction of is improved. The thickness of the plurality of fins may be the same or different.

Further, the wind direction adjustment unit, for example,
The maximum value of the gap between the end of the fin and the downstream inner wall surface when the end of the fin on the side opposite to the rotation axis faces the downstream inner wall surface has a predetermined threshold value. Be less than.

  According to the above configuration, the air reaching the downstream end is prevented from passing through the gap between the fin end and the downstream inner wall surface. As a result, the air reaching the downstream end is reliably guided in the direction defined by the flow path defined by the fins, the plate body, and the downstream inner wall surface. Therefore, as compared with the case where the maximum value of the gap is equal to or more than the threshold value, the flow direction of the blown air flow can be controlled more accurately. That is, the control performance of the blown air flow is improved.

  The above-mentioned threshold value takes into consideration, for example, the control performance of the blown air flow required for the air blowing device and the molding accuracy of the wind direction adjustment unit (in particular, the fins and the plate body) and the housing (in particular, the downstream inner wall surface). It can be set appropriately. Also in this case, the end portions of the fins and the plate body are configured to be rotatable about the rotation axis without interfering with the downstream side inner wall surface.

Further, the wind direction adjustment unit, for example,
The shape of the fin on the projection plane perpendicular to the rotation axis may be a circle having the rotation axis as a center. In other words, when the wind direction adjusting unit is viewed from the direction parallel to the rotation axis of the wind direction adjusting unit, the shape of each fin looks like a "circle about the same rotation axis". The "circle" includes an ellipse and a perfect circle, more preferably a perfect circle.

  With the above configuration, the area of the fins can be maximized under the condition that the fins are present in the rotation region, so that the fins can efficiently guide the air that has reached the downstream end.

  Typically, in the wind direction adjusting unit, all of the plurality of fins are parallel to each other and are orthogonal to the plate body, and all of the plurality of fins are the same, as illustrated in Examples described later. It may be configured to have an elliptical shape centered on the rotation axis having a size of.

  In the air blowout device according to the present invention, the shape of the housing is appropriately determined in consideration of, for example, the size of the area where the air blowout device can be installed, from the viewpoint of improving the aesthetic appearance of the dashboard and its surroundings. Can be set.

For example, the housing is
The height of the opening surface of the air outlet may be smaller than the diameter of the rotating region.

  With the above configuration, as the shape of the air outlet of the air blowing device according to the present invention, for example, an elongated rectangle (having a high aspect ratio) whose length in the height direction is much smaller than the length in the width direction may be adopted. it can. That is, the appearance of the air blowing device can be formed in a shape that takes into consideration the aesthetics of the dashboard and its surroundings. Further, since a large area of the downstream side inner wall surface can be secured, the flow direction of the blown air flow can be controlled more accurately. That is, the control performance of the blown air flow is improved.

  Further, the air blowing device according to the present invention can be used as an assembly combining two or more. For example, each of the air blowers blows blown airflows in different directions to blow air over a wider range, or the blown airflows blown from a plurality of air blowers are converged to increase the air volume (flow rate). can do. As described above, by using a plurality of air blowing devices according to the present invention in combination, the flow direction and flow rate of the blown air flow can be controlled in various ways.

  That is, another embodiment of the present invention is an assembly of air blowing devices including a plurality of any of the air blowing devices described above. According to this, by using a plurality of air blowing devices according to the present invention in combination, the flow direction and flow rate of the blown air flow can be controlled in more various ways.

  In the assembly of the air blowing devices described above, all of the wind direction adjusting units included in the plurality of air blowing devices may be configured to rotate around the rotation axis in the same phase. According to this, the flow directions of the blown air flows blown from the plurality of air blowing devices are aligned in the same direction, so that, for example, the air volume of the blown air flows blown in a target direction can be increased.

  Alternatively, in the assembly of the air blowing devices described above, at least one of the wind direction adjusting units of the wind direction adjusting units included in the plurality of air blowing devices has a phase different from that of the other wind direction adjusting units of the rotary shaft. It can also be configured to rotate around. According to this, since the flow directions of the blowout airflows blown out from the plurality of air blowout devices are different, for example, the blowout airflows are blown in a wider range, or the interference of the blowout airflows blown out from the different air blowout devices. As a result, these blown air flows can be converged.

  By the way, as described above, by rotating at least one wind direction adjusting unit among the wind direction adjusting units included in the plurality of air blowing devices around the rotation axis in a phase different from that of the other wind direction adjusting units, the plurality of air blowing devices. If the blown air streams are blown from different directions, interference of these blown air streams may occur. As a result, due to unintended convergence or divergence of these blown air streams, for example, the blown air stream may be blown out in an unintended direction, or the blown air stream may not be blown out in the intended direction. .

  Therefore, as described above, an assembly of air blowing devices that rotates at least one wind direction adjusting unit among the air direction adjusting units included in the plurality of air blowing devices around the rotation axis in a phase different from that of the other wind direction adjusting units is provided. Further, an interference prevention unit for preventing interference of the flow of air blown out from the adjacent outlets can be further provided. According to this, the interference of the flow of the air blown from the adjacent air outlets (blow-off air flow) is prevented, so that unintended convergence or divergence of these blown air flows is reduced. As a result, it is possible to reduce the problem that the blown-out airflow as a whole of the assembly of air blowing devices is blown out in an unintended direction or is not blown out in a target direction.

  The interference prevention unit may be formed by a protrusion provided upright between the adjacent outlets. In this case, typically, the interference prevention unit is a projection or a plate-like projection that is erected between the adjacent outlets. Accordingly, it is possible to physically reduce the interference between the adjacent blown air flows.

  Alternatively, the interference prevention unit may be configured to blow out air from an opening provided between the adjacent outlets. In this case, typically, the interference prevention unit blows out air from a slit-shaped opening provided between the adjacent outlets. The flow of air blown out from this opening is present between the adjacent blown air flows, and the interference of these blown air flows can be reduced.

  Alternatively, the interference prevention unit may be formed by a groove formed between the adjacent outlets. In this case, since the air around the air blowing device can flow to the vicinity of the air outlet through this groove, the generation of an accompanying flow due to the blown air flow is promoted, and this accompanying flow causes the adjacent blowout air to flow. By interposing between the air streams, the interference of these blown air streams can be reduced.

  By the way, the air blowing device and its assembly according to the present invention can control the flow direction and flow rate of the blown air flow by rotating the wind direction adjusting unit. However, the air blowing device and the assembly thereof according to the present invention may separately include a mechanism for adjusting the flow rate of the air supplied to the downstream end through the air flow path.

  That is, the assembly of the air blowing devices as described above further includes an air volume adjusting unit that adjusts the flow rate of the air supplied to the downstream end. As a result, the flow rate of the air supplied to the downstream end through the air flow path can be adjusted independently of the rotation of the wind direction adjusting unit, so that the combination of the flow direction and the flow rate of the blown air flow can be adjusted. More versatile control is possible. In this case, typically, the air volume adjustment unit is a damper provided on the upstream side of the air flow direction adjustment unit in the air flow path.

  The air volume adjusting unit may be configured to individually adjust the flow rate of the air supplied to the downstream end of each of the plurality of air blowing devices forming the assembly of the air blowing devices. In this case, for example, the air volume adjustment unit may be configured by a plurality of dampers provided on the upstream side of the air flow direction adjustment units of the air flow paths of the plurality of air blowing devices.

  Alternatively, the air volume adjustment unit may be configured to collectively adjust the flow rate of the air supplied to all the downstream end portions of the plurality of air blowing devices that form the assembly of the air blowing devices. In this case, for example, the assembly of the air blowing devices is provided with one integrated air flow passage at the upstream end of the air flow passage, and the integrated air flow passage is branched so that each of the plurality of air blowing devices It may be configured to communicate with the downstream end. The air volume adjusting unit may be composed of one damper provided in the integrated air flow path.

  By the way, the air blowout device according to the present invention controls the flow direction of the flow of air blown out from the blowout port (blowing airflow) by appropriately adjusting the rotation angle of the rotating shaft of the wind direction adjusting unit. Therefore, as will be described later in detail, the flow direction of the blown air flow continuously changes with the rotation of the rotating shaft of the wind direction adjusting unit. As a result, depending on the rotation angle of the rotating shaft of the wind direction adjusting unit, the blown air flow may be blown out in an undesired direction and / or an unnecessary direction.

  In such a case, the above-described air volume adjusting unit reduces the flow rate of the blown air flow blown in an undesired direction and / or an unnecessary direction, or blows air in an undesired direction and / or an unnecessary direction. You can prevent the flow from flowing out. In particular, the air volume adjusting unit works in conjunction with the rotation of the wind direction adjusting unit to reduce the flow rate of the blown air stream blown out in an undesired direction and / or an unnecessary direction, or in an undesired direction and / or unnecessary direction. It is preferable that the blown-out airflow can be prevented from being blown out in the direction.

  Therefore, the air flow rate adjustment unit may be configured to adjust the flow rate of the air supplied to the downstream end portion in accordance with the rotation of the air flow direction adjustment unit. According to this, by adjusting the rotation angle of the rotating shaft of the wind direction adjusting unit, the flow rate of the blown air flow blown out in an undesired direction and / or an unnecessary direction without individually operating the air volume adjusting unit. Can be reduced or the blown air stream can be prevented from being blown out in undesired and / or unwanted directions.

  Other objects, other features and attendant advantages of the present invention will be easily understood from the description of the embodiments of the present invention described with reference to the following drawings.

It is a typical perspective view of the air blow-out device (implementation device 10) concerning one embodiment of the present invention. 3A and 3B are a schematic front view and a cross-sectional view of the embodying apparatus 10. It is the typical front view, top view, and side view of the wind direction adjustment unit 30 with which execution device 10 is provided. FIG. 6 is a schematic diagram illustrating a relationship between a rotation angle of a wind direction adjustment unit 30 and a flow direction of a blown air flow in the embodying device 10. FIG. 6 is a schematic diagram showing a relationship between a rotation angle of a wind direction adjustment unit 30 and a blowing air flow direction in the embodying device 10. It is a typical perspective view showing appearance of a downstream side end part 123 of an aggregate (implementation aggregate 100) of an air blow-out device concerning one embodiment of the present invention. 4 is a schematic perspective sectional view showing an internal structure of a downstream end portion 123 of the working assembly 100. FIG. The flow of the blowing air flow when the rotation angles SL and SR of the wind direction adjusting units 30L and 30R of the working assembly 100 are (a) 0 (zero) degrees, (b) 45 degrees, and (c) 90 degrees is shown. It is a schematic diagram. FIG. 3 is a schematic diagram showing the flow of blown air flow when the rotation angles SL and SR of the wind direction adjustment units 30L and 30R of the working assembly 100 are (d) 135 degrees, (e) 180 degrees, and (f) 225 degrees. is there. It is a schematic diagram which shows the flow of the blowing air flow when the rotation angles SL and SR of the wind direction adjustment units 30L and 30R of the implementation assembly 100 are (g) 270 degrees and (h) 315 degrees. The rotation angles SL and SR of the wind direction adjusting units 30L and 30R of the assembly (implementation assembly 200) of the air blowing device according to another embodiment of the present invention are (a) 90 degrees and 270 degrees, respectively (b). It is a schematic diagram which shows the flow of the blowing air flow at 0 (zero) degree and 180 degrees, and (c) 180 degree and 0 (zero) degree. When the rotation angles SL and SR of the wind direction adjusting units 30L and 30R of the working assembly 200 are (d) 225 degrees and 135 degrees, (e) 180 degrees and 135 degrees, and (f) 180 degrees and 225 degrees, respectively. It is a schematic diagram which shows the flow of the blowing air stream of. Schematic showing the flow of blown air flow when the rotation angles SL and SR of the wind direction adjustment units 30L and 30R of the working assembly 200 are (g) 315 degrees and 225 degrees, and (h) 45 degrees and 135 degrees, respectively. It is a figure. It is a schematic diagram which shows one specific example of the interference prevention unit 130 with which the aggregate | assembly (implementation assembly 300) of the air blowing apparatus which concerns on another embodiment of this invention is equipped. 9 is a schematic diagram showing another specific example of the interference prevention unit 130 included in the working assembly 300. FIG. It is a schematic diagram which shows another specific example of the interference prevention unit 130 with which the working assembly 300 is provided. It is a typical sectional view showing composition of an air volume adjusting unit 140 with which an aggregate (implementation aggregate 400) of an air blow-out device concerning another embodiment of the present invention is provided.

<< 1st Embodiment >>
Hereinafter, an example of an air blowing device according to an embodiment of the present invention (hereinafter, also referred to as “implementing device 10”) will be described with reference to the drawings.

<Outline of device>
1 to 3 are schematic views showing the embodying apparatus 10. The embodied device 10 includes a housing 20 that defines an air outlet path, and an airflow direction adjustment unit 30. Hereinafter, the configuration of these members will be described in more detail.

  In the following description, the direction from the back to the front when viewed from the front of the execution device 10 is referred to as “front direction (F)”, and the opposite direction is referred to as “back direction (B)”. It Further, when viewed from the front of the embodied device 10, the direction from the right hand to the left hand is referred to as “left direction (L)”, and the direction toward the opposite is referred to as “right direction (R)”. In addition, when viewed from the front of the execution apparatus 10, the direction from the bottom to the top in the vertical direction is referred to as “upward direction (U)”, and the direction from the opposite direction is referred to as “downward direction (D)”.

  1A is a schematic perspective view of the embodying apparatus 10 when the embodying apparatus 10 is viewed from the front direction, and FIG. 1B is a schematic perspective view of an airflow direction adjusting unit 30 included in the embodying apparatus 10. is there. FIG. 2A is a schematic front view of the execution device 10. FIG. 2B illustrates the embodiment apparatus 10 (the housing 20 and the casing 20 and the case 20 and the case apparatus 20 including the case 20 and the front surface direction F, the left direction L, and the right direction R) in the plane AA in FIG. It is a schematic diagram which shows the cross section of the wind direction adjustment unit 30). FIG. 2C illustrates the embodiment apparatus 10 (the housing 20 and the casing 20 and the case 20 and the case apparatus 20 including the housing 20 and the front direction F, the upward direction U, and the downward direction D) in the plane BB in FIG. It is a schematic diagram which shows the cross section of the wind direction adjustment unit 30). In FIG. 2C, a black square represents a cross section of the plate body, and a white square represents a fin cross section. However, as shown in (a) and (b) of FIG. 2, the plate body (longitudinal direction thereof) is parallel to the rotation axis of the wind direction adjusting unit 30, and each fin is inclined. There is.

  As shown in FIG. 1 and FIG. 2, the casing 20 that constitutes the embodying apparatus 10 has a substantially rectangular parallelepiped shape (horizontal length (width)) that is larger than the vertical length (height). It has a thin plate shape. In the housing 20, air that has flowed in from a rear end side opening (hereinafter also referred to as “inlet”) 21 is opened on the front end side (hereinafter also referred to as “blowout”) 22. It is supposed to blow out from. That is, the casing 20 defines an air flow passage through which the air flow flowing into the inlet 21 can pass, and the air flow passing through the air flow passage has a downstream end portion 23 of the air flow passage. At, the blowout airflow, which is the airflow whose flow direction is adjusted, is blown out from the outlet 22 in a predetermined direction.

  The wind direction adjustment unit 30 is provided inside the housing 20 (that is, in the air flow path), and is blown out from the air outlet 22 via a downstream end 23 that is an end of the air flow path on the air outlet 22 side. Adjust the air flow direction.

  As shown in (c) of FIG. 2, the housing 20 defines the downstream end portion 23 by a downstream inner wall surface 24 that is an inner wall surface curved along the rotation region, and the downstream inner wall surface 24. The air outlet 22 is defined so as to penetrate through the opening and open to the air flow path. The height of the opening surface of the blowout port 22 is smaller than the diameter of the rotating region.

  As shown in (a) and (b) of FIG. 3, the wind direction adjusting unit 30 includes a rotating shaft 31 parallel to the opening surface of the outlet 22, a plate body 32 eccentrically rotatable about the rotating shaft 31, Further, it has a plurality of fins 33 that are plate-shaped members that intersect the rotation shaft 31 at a plurality of positions aligned on the rotation shaft 31. Each of the plurality of fins 33 is a rotation region that is inclined with respect to the rotation axis 31, intersects with the plate body 32, and is a region through which the plate body 32 passes when the plate body 32 rotates around the rotation axis 31. It is configured to exist within.

  In the following description, as shown in FIG. 3C, the rotation angle of the wind direction adjusting unit 30 (of the rotating shaft 31) is larger than the main portion of the plate body 32 (the amount of protrusion from the rotating shaft 31 is larger). The angle when the side portion) faces the outlet 22 side and the plate 32 is parallel to the axis of the air flow path (front direction F) is defined as 0 (zero) degree. As for the rotation direction of the rotation shaft 31, the rotation direction of the rotation shaft 31 when the main part of the plate body 32 is directed to the upper side (upward direction U) of the embodied device 10 from that angle is defined as the forward direction ((in FIG. The direction of the counterclockwise arrow shown in c)). In this example, the rotation angle of the rotary shaft 31 is configured to be adjusted to a desired angle by using a stepping motor (not shown) according to an instruction from the operator.

  According to the embodied device 10, by adjusting the rotation angle of the rotary shaft 31 as described above, the wind direction adjustment unit 30 provided at the downstream end 23, which is the end of the air flow path on the outlet 22 side, is provided. By adjusting the rotation angle, the flow direction of the air blown out from the air outlet 22 can be adjusted.

<Details of wind direction adjustment unit>
As shown in FIG. 3, all of the plurality of fins 33 have an elliptical plate shape having the same size about the rotation axis 31. Furthermore, each of the plurality of fins 33 is inclined at an angle of 45 degrees with respect to the rotation axis 31 (from the right rear side to the left front side) and is orthogonal to the plate body 32. That is, all of the plurality of fins 33 are parallel to each other. Accordingly, the wind direction adjusting unit 30 is configured such that the shape of the fin 33 on the projection plane perpendicular to the rotation shaft 31 is a circle centered on the rotation shaft 31.

  On the projection plane, the radius of the fin 33 is equal to the radius of the rotation area, which is an area through which the plate body 32 passes when the plate body 32 rotates around the rotation axis 31. As a result, the area of the fin 33 can be maximized under the condition that the fin 33 exists within the rotation region. On the other hand, as shown in FIG. 2C, the downstream end 23 is defined by a downstream inner wall surface 24 which is an inner wall surface curved along the rotation region. Therefore, the embodiment 10 can efficiently guide the air reaching the downstream end portion in the predetermined direction by the fins 33 and the downstream inner wall surface 24.

<Relationship between the rotation angle of the wind direction adjusting unit and the flow direction of the blown air flow>
The relationship between the rotation angle (R) of the wind direction adjustment unit 30 and the flow direction of the blown air flow in the embodiment apparatus 10 will be described below in detail with reference to the accompanying drawings. In FIG. 4, the rotation angle R (of the rotation shaft 31) of the wind direction adjusting unit 30 determined as described above is (a) 0 (zero) degree, (b) 45 degrees, (c) 90 degrees, and (d). The side view and the top view of the flow of the blown air flow at 135 degrees are respectively shown. FIG. 5 is a side view and a top view of the flow of the blown air flow when the rotation angle R of the wind direction adjustment unit 30 is (e) 180 degrees, (f) 225 degrees, (g) 270 degrees, and (h) 315 degrees. Each shows a view.

  4 and 5, a schematic cross-sectional view showing the rotation angle of the wind direction adjustment unit 30 in the embodied apparatus 10 is shown at the bottom. In the cross-sectional view, the black squares represent the plate 32, and the white squares represent the fins 33. The flow of the blown air flow at each rotation angle R will be described below.

(A) In the case of R = 0 (zero) degree In this case, as described above, the main portion of the plate body 32 (the portion on the side where the protruding amount from the rotating shaft 31 is larger) faces the outlet 22 side. Moreover, the plate 32 is parallel to the axis of the air flow path (front direction F). This state corresponds to the “parallel time” described above. Therefore, the plate body 32 does not substantially contribute to the adjustment of the flow direction of the air flow blown out from the air outlet 22.

  On the other hand, as shown in FIG. 3, each of the plurality of fins 33 is inclined at an angle of 45 degrees with respect to the rotation axis 31 and is orthogonal to the plate body. In other words, the elliptical plate-shaped member forming each fin 33 has the major axis of the ellipse inclined at an angle of 45 degrees with respect to the rotation axis 31 and is in the same plane as the plate 32. is there. That is, each of the plurality of fins 33 is inclined so as to guide air from the right rear side to the left front side when viewed from the front of the execution device 10. As a result, the air blown out from the air outlet 22 was not inclined in either the upward direction U or the downward direction D, and was blown out in the direction inclined 13 degrees to the left direction L.

(B) Case of R = 45 degrees Next, the wind direction adjustment unit 30 was rotated by 45 degrees in the positive direction (rotation angle R = 45 degrees). This state corresponds to the "intermediate time" described above. In this case, the cross-sectional area of the flow path above the rotary shaft 31 at the downstream end 23 is reduced by the main part of the plate body 32 (substantially 0 (zero)), and the cross-sectional area of the lower flow path. Will be smaller than. Therefore, the amount of air passing through the lower flow path relatively increases, the flow velocity increases, and the amount of air guided by the lower downstream inner wall surface 24 in the upward direction U increases.

  On the other hand, each of the plurality of fins 33 is orthogonal to the plate body 32, and its long axis is inclined at an angle of 45 degrees with respect to the rotation axis 31 in the same plane as the plate body 32. Therefore, when the rotation angle R is 45 degrees, the plurality of fins 33 are inclined so as to guide air from the lower right rear side to the upper left front side when viewed from the front of the execution apparatus 10. Therefore, when the air passing through the lower flow path is guided in the upward direction U by the lower downstream inner wall surface 24 as described above, the air flows along the long axis direction of the plurality of fins 33. . As a result, the air blown from the air outlet 22 was blown in a direction inclined by 25 degrees in the upward direction U and 22 degrees in the leftward direction L.

(C) In the case of R = 90 degrees Further, the wind direction adjusting unit 30 was rotated 90 degrees in the forward direction (rotation angle R = 90 degrees). This state corresponds to the "vertical time" described above. In this case as well, the cross-sectional area of the flow path above the rotary shaft 31 at the downstream end 23 is reduced by the main portion of the plate 32, and is smaller than the cross-sectional area of the lower flow path. Therefore, the amount of air passing through the lower flow path relatively increases, the flow velocity increases, and the amount of air guided by the lower downstream inner wall surface 24 in the upward direction U increases.

  On the other hand, the plurality of fins 33 are inclined from the lower right direction to the upper left direction when viewed from the front of the execution device 10, and do not contribute to the adjustment of the flow direction of the air flowing in the front-rear direction. However, since the air passing through the lower flow path is guided in the upward direction U by the lower downstream inner wall surface 24 as described above, the air is inclined with respect to the long axis direction of the plurality of fins 33. Flow in the direction. Therefore, due to the inclination of the plurality of fins 33, the air blown out from the air outlet 22 is guided to the upper left direction to some extent. As a result, the air blown from the outlet 22 was blown in a direction inclined by 30 degrees in the upward direction U and 10 degrees in the leftward direction L.

(D) In the case of R = 135 degrees This state also corresponds to the above-mentioned “intermediate time”. In this case as well, the cross-sectional area of the flow path above the rotary shaft 31 at the downstream end 23 is reduced by the main portion of the plate 32, and is smaller than the cross-sectional area of the lower flow path. Therefore, the amount of air passing through the lower flow path relatively increases, the flow velocity increases, and the amount of air guided by the lower downstream inner wall surface 24 in the upward direction U increases.

  On the other hand, the plurality of fins 33 are inclined so as to guide the air in the direction from the upper left rear to the lower right front when viewed from the front of the execution apparatus 10. Therefore, when the air passing through the lower flow path is guided in the upward direction U by the lower downstream inner wall surface 24 as described above, the air flows along the minor axis direction of the plurality of fins 33. . Therefore, due to the inclination of the plurality of fins 33, the air blown out from the air outlet 22 is guided to the lower right direction to some extent. As a result, the air blown from the air outlet 22 was blown in a direction inclined by 30 degrees in the upward direction U and 10 degrees in the right direction R.

(E) In the case of R = 180 degrees In this case, the wind direction adjustment unit 30 faces in the opposite direction to the case (R = 0 (zero) degree) in the case of (a) described above. The main portion of the plate body 32 faces the side opposite to the air outlet 22 and the plate body 32 is parallel to the axis of the air flow path (front direction F). This state also corresponds to the "parallel time" described above. That is, the plate body 32 does not substantially contribute to the adjustment of the flow direction of the air flow blown out from the air outlet 22. On the other hand, the plurality of fins 33 are inclined so as to guide the air from the left rear to the right front when viewed from the front of the execution apparatus 10. Therefore, the air blown out from the air outlet 22 is not inclined in either the upward direction U or the downward direction D, and is blown in the direction inclined 15 degrees to the right direction R.

(F) In the case of R = 225 degrees In this case, the wind direction adjustment unit 30 faces in the opposite direction to the case of (b) described above (R = 45 degrees). This state also corresponds to the "intermediate time" described above. The cross-sectional area of the flow path below the rotary shaft 31 at the downstream end 23 is reduced by the main portion of the plate 32, and is smaller than the cross-sectional area of the upper flow path. Therefore, the amount of air passing through the upper flow path relatively increases, the flow velocity increases, and the amount of air guided by the upper downstream inner wall surface 24 in the downward direction D increases.

  On the other hand, the plurality of fins 33 are inclined so as to guide the air from the lower left rear to the upper right front when viewed from the front of the execution apparatus 10. Therefore, when the air passing through the upper flow path is guided in the downward direction D by the upper downstream inner wall surface 24 as described above, the air flows along the minor axis direction of the plurality of fins 33. Therefore, due to the inclination of the plurality of fins 33, the air blown from the air outlet 22 is guided to the upper right direction to some extent. As a result, the air blown from the air outlet 22 was blown in a direction inclined 33 degrees downward D and 10 degrees rightward R.

(G) In the case of R = 270 degrees In this case, the wind direction adjustment unit 30 faces in the opposite direction to the case (R = 90 degrees) in the above-mentioned case (c). This state also corresponds to the "vertical time" described above. In this case, the cross-sectional area of the flow path below the rotary shaft 31 at the downstream end 23 is reduced by the main portion of the plate 32, and becomes smaller than the cross-sectional area of the upper flow path. Therefore, the amount of air passing through the upper flow path relatively increases, the flow velocity increases, and the amount of air guided by the upper downstream inner wall surface 24 in the downward direction D increases.

  On the other hand, the plurality of fins 33 are inclined from the upper right to the lower left when viewed from the front of the execution device 10, and do not contribute to the adjustment of the flow direction of the air flowing in the front-rear direction. However, since the air passing through the lower flow path is guided in the downward direction D by the upper downstream inner wall surface 24 as described above, the air is directed in the direction inclined with respect to the long axis direction of the plurality of fins 33. Flow to. Therefore, due to the inclination of the plurality of fins 33, the air blown out from the air outlet 22 is guided to the lower left direction to some extent. As a result, the air blown from the air outlet 22 was blown in a direction inclined by 27 degrees in the downward direction D and 10 degrees in the left direction L.

(H) In the case of R = 315 degrees In this case, the wind direction adjusting unit 30 faces in the opposite direction to the case of (d) (R = 135 degrees) described above. This state also corresponds to the "intermediate time" described above. In this case, the cross-sectional area of the flow path below the rotary shaft 31 at the downstream end 23 is reduced by the main portion of the plate 32, and becomes smaller than the cross-sectional area of the upper flow path. Therefore, the amount of air passing through the upper flow path relatively increases, the flow velocity increases, and the amount of air guided by the upper downstream inner wall surface 24 in the downward direction D increases.

  On the other hand, the plurality of fins 33 are inclined so as to guide air from the upper right rear side to the lower left front direction when viewed from the front of the execution apparatus 10. Therefore, when the air passing through the upper flow path is guided in the downward direction D by the upper downstream inner wall surface 24 as described above, the air flows along the long axis direction of the plurality of fins 33. Therefore, due to the inclination of the plurality of fins 33, the air blown out from the air outlet 22 is guided to the lower left direction to some extent. As a result, the air blown out from the outlet 22 was blown in a direction inclined by 27 degrees in the downward direction D and 22 degrees in the leftward direction L.

  The correspondence relationship between the rotation angle R of the wind direction adjusting unit 30 and the flow direction of the blown air flow described above is summarized in Table 1 below.

  As described above, the execution apparatus 10 can control the flow direction of the air blown from the air outlet 22 by appropriately adjusting the rotation angle R of the rotation shaft 31 of the wind direction adjustment unit 30. That is, the embodied device 10 can control the blown air flow without the need for the wind direction adjustment plate employed in the conventional device. Therefore, the execution device 10 can be downsized without impairing the function of the air blowing device.

  Further, the execution device 10 does not need to include the airflow direction adjusting plate employed in the conventional device, so that the shape of the air outlet 22 can be designed more freely than in the conventional device. For example, as the shape of the air outlet 22, a shape that takes the aesthetics of the air blowing device into consideration (for example, an elongated rectangle (having a high aspect ratio) whose length in the height direction is much smaller than its length in the width direction) may be adopted. .

<Modification>
As described above, in the embodied device 10, all of the plurality of fins 33 are configured to be parallel. However, in the air blowing device according to the present invention, it is not essential that all of the plurality of fins are parallel, and the inclination angle of each of the plurality of fins is, for example, the blowing air flow required for the air blowing device. It may be appropriately determined in consideration of the control performance and the like.

  Further, in the embodying apparatus 10, all of the plurality of fins 33 have an elliptical plate shape having the same size with the rotation axis 31 as the center. However, in the air blowing device according to the present invention, it is not essential that all of the plurality of fins have the size and shape as described above, and the size and shape of the plurality of fins may be, for example, the air blowing device. Can be appropriately determined in consideration of the control performance of the blown air flow required for the above. For example, all of the plurality of fins may have a shape other than an elliptical shape having the same size. Alternatively, the plurality of fins may be configured by a plurality of types of plate-shaped members having different sizes and / or shapes.

  However, as described above, in order to reliably guide the air that has reached the downstream end in the direction defined by the flow path defined by the fins, the plate, and the downstream inner wall surface, It is desirable to reduce the arrival of air through the gap between the end of the fin and the downstream inner wall surface. Therefore, regardless of the size and shape of each of the plurality of fins, it is desirable that the maximum value of the void be less than a predetermined threshold value.

  Further, as described above, it is desirable that the shape of the fin on the projection plane perpendicular to the rotation axis is a circle centered on the rotation axis. In other words, when the wind direction adjusting unit is viewed from a direction parallel to the rotation axis of the wind direction adjusting unit, it is desirable that the shape of each fin looks like a "circle about the same rotation axis". The "circle" includes an ellipse and a perfect circle, more preferably a perfect circle.

  In addition, the embodiment 10 is configured such that the height of the opening surface of the blowout port 22 is smaller than the diameter of the rotation region. Although this is not an indispensable constituent feature, as described above, with the above-described configuration, for example, a rectangle having a high aspect ratio can be adopted as the shape of the air outlet of the air blowing device according to the present invention. Therefore, the external appearance of the air blowing device can be formed into a shape that takes into consideration the aesthetics of the dashboard and its surroundings. Further, since a large area of the downstream side inner wall surface can be secured, the flow direction of the blown air flow can be controlled more accurately. That is, the control performance of the blown air flow is improved.

<< Second Embodiment >>
By the way, as described above, for example, according to the control performance of the blown air flow required for the air blowing device, etc., it is used as an assembly in which a plurality of air blowing devices according to the present invention including the execution device 10 are combined. May be. For example, each of the air blowers blows blown airflows in different directions to blow air over a wider range, or the blown airflows blown from a plurality of air blowers are converged to increase the air volume (flow rate). can do. Alternatively, it is possible to realize a high-level air flow such as a swirling flow by appropriately combining the directions of the blown air flows blown from the respective air blowing devices. In this way, the degree of freedom in controlling the flow direction and / or the flow rate of the blown air flow can be further increased.

  Therefore, an example of an assembly of air blowing devices according to one embodiment of the present invention (hereinafter, also referred to as “implementation assembly 100”) will be described below with reference to the drawings.

<Overview of the aggregate>
FIG. 6 is a schematic perspective view showing the outer appearance of the downstream end 123 of the working assembly 100. Also in the following description, the direction from the back to the front when viewed from the front of the working assembly 100 is referred to as “front direction (F)” as in the above description regarding the working apparatus 10, and the direction goes in the opposite direction. The direction is referred to as "back surface direction (B)". Further, when viewed from the front of the working group 100, the direction from the right hand to the left hand is referred to as “left direction (L)”, and the opposite direction is referred to as “right direction (R)”. In addition, when viewed from the front of the working assembly 100, the direction from the bottom to the top in the vertical direction is referred to as “upward direction (U)”, and the direction from the opposite direction is referred to as “downward direction (D)”. .

  As shown in FIG. 6, the downstream end portion 123 of the working assembly 100 has the downstream end portion 23 of the embodiment apparatus 10 shown in FIG. As described above, it has a structure in which two units are stacked and rotated so that the rotation shaft 31 is parallel to the vertical direction. That is, at the downstream end 123 of the working assembly 100, the two wind direction adjusting units 30L and 30R are located on the left and right sides of the working assembly 100 when viewed from the front, and the respective rotation axes 31L and 31R are parallel to each other. It is arranged so as to be parallel to the vertical direction (which may also be referred to as “up-down direction (UD)”). Furthermore, air outlets 22L and 22R from which the air flow whose flow direction has been adjusted at the downstream end 123 are blown out in a predetermined direction as blown air flows are provided on the front direction F side of the wind direction adjustment units 30L and 30R, respectively. Has been.

<Details of wind direction adjustment unit>
FIG. 7 is a schematic perspective sectional view showing the internal structure of the downstream end 123 of the working assembly 100. As shown in FIG. 7, the two wind direction adjustment units 30L and 30R have the same configuration as the wind direction adjustment unit 30 described with reference to FIG. That is, in the wind direction adjusting units 30L and 30R, all the fins 33 are elliptical plate-shaped members having the same size and are parallel to each other.

  Further, in each of the wind direction adjusting units 30L and 30R, the major axis of the elliptical plate-shaped member that constitutes the fin 33 is inclined at an angle of 45 degrees with respect to the rotation axes 31L and 31R, respectively, and the plate body is formed. It is in the same plane as 32. In addition, the shape of the fin 33 on the projection plane perpendicular to the rotation axes 31L and 31R is a circle centered on the rotation axes 31L and 31R, respectively, and the radius of the fin 33 on the projection plane is the same as that of the rotation axes 31L and 31R. It is equal to the radius of the rotation region that is the region through which the plate body 32 passes when the plate body 32 rotates around.

<Details of downstream end>
Also in the housing 20 of the working assembly 100, as in the case of the working apparatus 10, along the rotation region, which is a region through which the plates of the respective wind direction adjusting units pass when the plates rotate around the rotation axis. The downstream side inner wall surface 24 that is a curved inner wall surface defines the downstream end 123, and the outlets 22L and 22R are defined so as to penetrate through the downstream side inner wall surface 24 and open to the air flow path. There is.

  However, in the working assembly 100, a partition wall 125 having a curved wall surface along the respective rotation regions is provided between two adjacent wind direction adjustment units 30L and 30R, and the wall surface of this partition wall 125. And the downstream inner wall surface 24 define the downstream end 123. As a result, the working assembly 100 can efficiently guide the air reaching the downstream end portion 123 in the predetermined direction by the fins 33, the downstream inner wall surface 24, and the wall surface of the partition wall 125. In the following description, the wall surface of the partition wall 125 and the downstream inner wall surface 24 may be collectively referred to as the “downstream inner wall surface 124”.

<Relationship between the rotation angle of the wind direction adjusting unit and the flow direction of the blown air flow>
The working assembly 100 is configured such that all of the wind direction adjusting units included in the plurality of air blowing devices rotate about the rotation axis in the same phase. That is, the two wind direction adjusting units 30L and 30R are configured to rotate in conjunction with each other, for example, by a gear mechanism or the like configured such that the respective rotation shafts 31L and 31R rotate in the same phase in association with each other. ing.

  As described above, in the working assembly 100, the flow directions of the blown air flows blown out from the plurality of air blowing devices are aligned in the same direction. Specifically, the flow directions of the blown air flows blown out from the blowout ports 22L and 22R are aligned in the same direction. Therefore, according to the working assembly 100, for example, the air volume of the blown airflow in the target direction can be increased.

  The relationship between the rotation angles (SL and SR) of the wind direction adjusting units 30L and 30R in the working assembly 100 and the flow direction of the blown air flow will be described in detail below with reference to the accompanying drawings.

  In addition, as shown in FIGS. 6 and 7, the downstream end portion 123 of the working assembly 100 rotates the downstream end portion 23 of the working apparatus 10 shown in FIG. It has a structure in which two units are stacked so that the shafts 31 are parallel to each other and are rotated so that the rotary shaft 31 is parallel to the vertical direction. Therefore, regarding the rotation angles SL and SR (of the rotation shafts 31L and 31R) of the wind direction adjustment units 30L and 30R in the working assembly 100, the portion (main portion) on the side where the amount of protrusion of the plate body 32 from the rotation shaft is larger. The angle when facing the left direction L side (that is, the plate 32 is perpendicular to the axis of the air flow path) is defined as 0 (zero) degree.

  Regarding the rotation directions of the rotation shafts 31L and 31R, when the downstream end portion 123 of the working assembly 100 is observed from the upper direction U to the lower direction D, the clockwise rotation direction is defined as the positive direction. Thereby, the rotation angles SL and SR of the rotation shafts 31L and 31R of the wind direction adjustment units 30L and 30R are set to angles of 0 (zero) degree to 360 degrees corresponding to the direction in which the main portion of the plate body 32 projects. Can be defined.

  FIG. 8 shows that the rotation angles SL and SR (of the rotation shafts 31L and 31R) of the wind direction adjustment units 30L and 30R are (a) 0 (zero) degree, (b) 45 degrees, and (c) 90 degrees. 2 shows a side view and a top view of the flow of the blown air flow. Further, FIG. 9 shows a side view of the flow of the blown air flow when the rotation angles SL and SR of the rotation shafts 31L and 31R are (d) 135 degrees, (e) 180 degrees, and (f) 225 degrees, respectively. Each is shown in a top view. In addition, FIG. 10 shows a side view and a top view of the flow of the blown air flow when the rotation angles SL and SR are (g) 270 degrees and (h) 315 degrees, respectively. In this way, in the working assembly 100, as described above, the two wind direction adjusting units 30L and 30R are configured to rotate around the rotation shafts 31L and 31R in the same phase (SL = SR). ).

  In any of the cases shown in FIGS. 8 to 10 (that is, in any of the above (a) to (h)), schematic sectional views showing the rotation angles SL and SR of the wind direction adjusting units 30L and 30R. Shown at the left end. In the cross-sectional view, the black squares represent the plate body 32, and the open circles represent the fins 33. Further, the rotation angles SL and SR of the wind direction adjusting units 30L and 30R from the state where the main part of the plate body 32 faces the left direction L side (that is, the rotation angle SL = SR = 0 (zero) degree) are indicated by broken lines. In addition to being indicated by an arrow, the guide direction of the blown air flow by each of the wind direction adjusting units 30L and 30R is shown in parentheses.

  Of all the outer edges of all the fins 33, the portion that intersects with the plate 32 is the highest (positioned on the uppermost U side), and the portion on the opposite side across the rotary shafts 31L and 31R is the most. It is configured to be low (positioned on the most downward direction D side). The flow of the blown air flow at the individual rotation angles SL and SR will be described in detail below.

(A) In the case of SL = SR = 0 (zero) degree In this case, as described above, the plate bodies 32 of the wind direction adjusting units 30L and 30R are both facing leftward to the L side. Therefore, the cross-sectional area of the flow path on the left side of the rotary shafts 31L and 31R at the downstream end 123 depends on the main portion of the plate body 32 (the portion on the side where the protrusion amount from the rotary shafts 31L and 31R is larger). It is reduced (becomes substantially 0 (zero)), and is smaller than the cross-sectional area of the channel on the right side R side. Therefore, the amount of air passing through the flow path on the right direction R side relatively increases, the flow velocity increases, and the amount of air guided by the downstream inner wall surface 124 on the right direction R side in the left direction L increases.

  On the other hand, as described above, each of the plurality of fins 33 is orthogonal to the plate body 32, and its long axis is inclined at an angle of 45 degrees with respect to the rotation axis 31 in the same plane as the plate body 32. ing. Therefore, when the rotation angles SL and SR are 0 (zero) degrees, the plurality of fins 33 are inclined from the lower right (RD) to the upper left (LU) when viewed from the front of the working assembly 100, and It does not contribute to the adjustment of the flow direction of the air flowing in the direction (FB). Therefore, the air blown out from the air outlets 22L and 22R is not guided in the vertical direction (UD). As a result, the air blown from the outlets 22L and 22R was blown in the front direction F in the side view and in the left direction L in the top view. That is, the blown air flow was blown out in the left direction L.

(B) Case of SL = SR = 45 degrees Next, the wind direction adjusting units 30L and 30R were rotated by 45 degrees in the positive direction (rotation angle SL = SR = 45 degrees). In this case as well, the cross-sectional area of the flow path on the left end L side of the rotary shafts 31L and 31R at the downstream end 123 is reduced by the main portion of the plate body 32, and the cross-sectional area of the flow path on the right R side is reduced. Also becomes smaller. Therefore, the amount of air passing through the flow path on the right direction R side relatively increases, the flow velocity increases, and the amount of air guided by the downstream inner wall surface 124 on the right direction R side in the left direction L increases.

  On the other hand, when the rotation angles SL and SR are 45 degrees, the plurality of fins 33 are inclined so as to guide air in the direction from the upper left rear to the lower right front when viewed from the front of the working assembly 100. Therefore, when the air passing through the flow path on the right direction R side is guided in the left direction L by the downstream inner wall surface 124 on the right direction R side as described above, the air is in the long axis direction of the plurality of fins 33. Flowing along. As a result, the air blown out from the air outlets 22L and 22R was blown out in the downward direction D in the side view and in the left direction L in the top view. That is, the blown air flow was blown out in the lower left direction LD.

(C) In the case of SL = SR = 90 degrees In this case, the main part of the plate body 32 faces the inlet 21 side (back surface direction B side) of the housing 20 and the plate body 32 has the axis line of the air flow path ( It is parallel to the front-back direction FB). Therefore, the plate body 32 does not substantially contribute to the adjustment of the flow direction of the air flow blown out from the air outlets 22L and 22R.

  On the other hand, each of the plurality of fins 33 is inclined so as to guide air from the upper rear side to the lower front side when viewed from the front of the working assembly 100. As a result, the air blown out from the air outlets 22L and 22R was blown out in the downward direction D in the side view and in the front direction F in the top view. That is, the blown air flow was blown out in the downward direction D.

(D) In the case of SL = SR = 135 degrees In this case, the wind direction adjusting units 30L and 30R face in the opposite direction in the left-right direction (LR) to the case of (b) described above (SL = SR = 45 degrees). It is the same as the above-mentioned case (b) except that it is described. That is, the cross-sectional area of the flow path on the right end R side of the rotary shafts 31L and 31R at the downstream end 123 is reduced by the main portion of the plate body 32, and becomes smaller than the cross-sectional area of the flow path on the left L side. . Therefore, the amount of air passing through the flow path on the left direction L side relatively increases, the flow velocity increases, and the amount of air guided to the right direction R by the downstream inner wall surface 124 on the left direction L side increases.

  On the other hand, when the rotation angles SL and SR are 135 degrees, the plurality of fins 33 are inclined so as to guide air from the upper right rear side to the lower left front side when viewed from the front of the working assembly 100. Therefore, when the air passing through the flow path on the left L side is guided in the right direction R by the downstream inner wall surface 124 on the left L side as described above, the air is in the long axis direction of the plurality of fins 33. Flowing along. As a result, the air blown out from the outlets 22L and 22R was blown out in the downward direction D in the side view and in the right direction R in the top view. That is, the blown air flow was blown out in the lower right direction RD.

(E) In the case of SL = SR = 180 degrees In this case, the wind direction adjusting units 30L and 30R are opposite in the left-right direction (LR) to the case of (a) described above (SL = SR = 0 (zero) degree). It is the same as the above-mentioned case (a) except that it faces the direction. That is, the plate bodies 32 of the wind direction adjusting units 30L and 30R are both directed to the right side R side. Therefore, the cross-sectional area of the flow path at the downstream end 123 on the right side R of the rotary shafts 31L and 31R is reduced by the main part of the plate 32, and becomes smaller than the cross-sectional area of the flow path on the left side L. . Therefore, the amount of air passing through the flow path on the left direction L side relatively increases, the flow velocity increases, and the amount of air guided to the right direction R by the downstream inner wall surface 124 on the left direction L side increases.

  On the other hand, the plurality of fins 33 are inclined from the lower left (LD) to the upper right (RU) when viewed from the front of the working assembly 100, and do not contribute to the adjustment of the flow direction of the air flowing in the front-rear direction (FB). . Therefore, the air blown out from the air outlets 22L and 22R is not guided in the vertical direction (UD). As a result, the air blown from the outlets 22L and 22R was blown in the front direction F in the side view and in the right direction R in the top view. That is, the blown air flow was blown out in the right direction R.

(F) SL = SR = 225 degrees When the wind direction adjusting units 30L and 30R are rotated 225 degrees in the positive direction (rotation angle SL = SR = 225 degrees), the rotation axis 31L and the rotation axis 31L at the downstream end 123 are The cross-sectional area of the flow path on the R side to the right of 31R is reduced by the main portion of the plate 32, and is smaller than the cross-sectional area of the flow path on the L side of the left direction. Therefore, the amount of air passing through the flow path on the left direction L side relatively increases, the flow velocity increases, and the amount of air guided to the right direction R by the downstream inner wall surface 124 on the left direction L side increases.

  On the other hand, when the rotation angles SL and SR are 225 degrees, the plurality of fins 33 are inclined so as to guide air from the lower left rear to the upper right front when viewed from the front of the working assembly 100. Therefore, when the air passing through the flow path on the left direction L side is guided to the right direction R side by the downstream inner wall surface 124 on the left direction L side as described above, the air is the long axis of the plurality of fins 33. Flow along the direction. As a result, the air blown from the outlets 22L and 22R was blown upward in the side view U and in the right direction R in the top view. That is, the blown air flow was blown out in the upper right direction RU.

(G) In the case of SL = SR = 270 degrees In this case, the wind direction adjusting units 30L and 30R face in the opposite direction in the front-back direction (FB) to the case of (c) described above (SL = SR = 90 degrees). It is the same as the above-mentioned case (c) except that. That is, the main part of the plate body 32 faces the outlets 22L and 22R side (front side F side) of the housing 20, and the plate body 32 is parallel to the axis of the air flow path (front-back direction FB). Therefore, the plate body 32 does not substantially contribute to the adjustment of the flow direction of the air flow blown out from the air outlets 22L and 22R.

  On the other hand, each of the plurality of fins 33 is inclined so as to guide the air from the lower rear to the upper front when viewed from the front of the working assembly 100. As a result, the air blown from the outlets 22L and 22R was blown in the upward direction U in the side view and in the front direction F in the top view. That is, the blown air flow was blown out in the upward direction U.

(H) In the case of SL = SR = 315 degrees In this case, the wind direction adjusting units 30L and 30R face the opposite direction in the left-right direction (LR) to the case of (f) described above (SL = SR = 225 degrees). It is the same as the above-mentioned case (f) except the above. That is, the cross-sectional area of the flow path on the left end L side of the rotary shafts 31L and 31R at the downstream end 123 is reduced by the main portion of the plate 32, and is smaller than the cross-sectional area of the flow path on the right R side. . Therefore, the amount of air passing through the flow path on the right direction R side relatively increases, the flow velocity increases, and the amount of air guided by the downstream inner wall surface 124 on the right direction R side in the left direction L increases.

  On the other hand, when the rotation angles SL and SR are 315 degrees, the plurality of fins 33 are inclined so as to guide air from the lower right rear side to the upper left front direction when viewed from the front of the working assembly 100. Therefore, when the air passing through the flow passage on the right direction R side is guided to the left direction L side by the downstream inner wall surface 124 on the right direction R side as described above, the air is the long axis of the plurality of fins 33. Flow along the direction. As a result, the air blown from the outlets 22L and 22R was blown upward in the side view U and in the left direction L in the top view. That is, the blown air flow was blown out in the upper left direction LU.

  The correspondence relationship between the rotation angles SL and SR of the wind direction adjustment units 30L and 30R and the flow direction of the blown air flow in the embodiment assembly 100 described above is summarized in Table 2 below.

  As described above, the working assembly 100 appropriately adjusts the rotation angles SL and SR of the rotation shafts 31L and 31R of the airflow direction adjustment units 30L and 30R to change the flow direction of the air blown out from the air outlets 22L and 22R. Can be controlled. That is, the working assembly 100 can control the blown air flow without the need of the wind direction adjusting plate employed in the conventional apparatus. Therefore, the working assembly 100 can be downsized without impairing the function of the air blowing device.

  Further, since the working assembly 100 does not need to include the wind direction adjusting plate employed in the conventional apparatus, the shape of the outlets 22L and 22R can be designed more freely than in the conventional apparatus. For example, as the shape of the air outlets 22L and 22R, a shape that takes the aesthetics of the air blowing device into consideration (for example, an elongated rectangle (having a high aspect ratio) in which the length in the height direction is extremely smaller than the length in the width direction) is adopted. Can be done.

  In addition, in the working assembly 100, the two wind direction adjusting units 30L and 30R rotate around the rotation axes 31L and 31R in the same phase. As a result, the flow directions of the blown airflows blown out from the blowout ports 22L and 22R are aligned in the same direction, so that, for example, the airflow rate of the blown airflow blown out in a target direction can be increased.

<< Third Embodiment >>
Next, an example of an assembly of air blowing devices according to another embodiment of the present invention (hereinafter, also referred to as “implementation assembly 200”) will be described below with reference to the drawings.

<Overview of the aggregate>
As described above, in the working assembly 100, the two wind direction adjusting units 30L and 30R are configured to rotate around the rotation shafts 31L and 31R in the same phase. On the other hand, in the working assembly 200, the two wind direction adjusting units 30L and 30R are configured to rotate around the rotation shafts 31L and 31R in different phases. Except for this point, the implementation aggregate 200 has the same configuration as the implementation aggregate 100. Therefore, the description of the details of the wind direction adjusting unit and the downstream end portion in the working assembly 200 will be omitted.

<Relationship between the rotation angle of the wind direction adjusting unit and the flow direction of the blown air flow>
As described above, the working assembly 200 is configured such that the wind direction adjusting units included in the plurality of air blowing devices rotate about the rotation axis in different phases. That is, the two wind direction adjustment units 30L and 30R are configured to rotate by, for example, a gear mechanism or the like configured such that the respective rotation shafts 31L and 31R rotate in mutually different phases.

  As described above, in the working assembly 200, the flow directions of the blown air flows blown out from the plurality of air blowing devices are different. Specifically, since the flow directions of the blowout airflows blown out from the blowout ports 22L and 22R are different, for example, the blowout airflows are blown in a wider range or the interference of blowout airflows blown out from different air blowing devices. As a result, these blown air flows can be converged.

  The relationship between the rotation angles (SL and SR) of the wind direction adjusting units 30L and 30R in the working assembly 200 and the flow direction of the blown air flow will be described in detail below with reference to the accompanying drawings. The rotation angles SL and SR (of the rotation shafts 31L and 31R) of the wind direction adjusting units 30L and 30R in the working assembly 200 are also defined in the same manner as in the working assembly 100.

  FIG. 11 shows that the rotation angles SL and SR (of the rotation shafts 31L and 31R) of the wind direction adjusting units 30L and 30R are (a) 90 degrees and 270 degrees, (b) 0 (zero) degrees and 180 degrees, respectively. c) Shows a side view and a top view of the flow of the blown air flow at 180 degrees and 0 (zero) degree, respectively. Further, FIG. 12 shows that the rotation angles SL and SR of the rotation shafts 31L and 31R are (d) 225 degrees and 135 degrees, (e) 180 degrees and 135 degrees, and (f) 180 degrees and 225 degrees, respectively. 2 shows a side view and a top view of the flow of the blown air flow. In addition, FIG. 13 shows a side view and a top view of the flow of the blown air flow when the rotation angles SL and SR are (g) 315 degrees and 225 degrees, and (h) 45 degrees and 135 degrees, respectively. Shows. As described above, in the working assembly 200, as described above, the two wind direction adjusting units 30L and 30R are configured to rotate around the rotation shafts 31L and 31R in different phases (SL ≠ SR). ).

  In any of the cases shown in FIGS. 11 to 13 (that is, in any of the above (a) to (h)), schematic sectional views showing the rotation angles SL and SR of the wind direction adjusting units 30L and 30R. Shown at the left end. In the cross-sectional view, the black squares represent the plate body 32, and the open circles represent the fins 33. Further, the rotation angles SL and SR of the wind direction adjusting units 30L and 30R from the state where the main part of the plate body 32 faces the left direction L side (that is, the rotation angle SL = SR = 0 (zero) degree) are indicated by broken lines. In addition to being indicated by an arrow, the guide direction of the blown air flow by each of the wind direction adjusting units 30L and 30R is shown in parentheses. The flow of the blown air flow at the individual rotation angles SL and SR will be described in detail below.

(A) In the case of SL = 90 degrees and SR = 270 degrees In this case, in the wind direction adjusting unit 30L, the main part of the plate body 32 faces the inlet 21 side (back side B side) of the housing 20 and The plate 32 is parallel to the axis of the air flow path (front-back direction FB). Therefore, the plate 32 does not substantially contribute to the adjustment of the flow direction of the air flow blown out from the air outlet 22L. Furthermore, each of the plurality of fins 33 is inclined so as to guide the air from the upper rear side to the lower front side when viewed from the front of the working assembly 200. As a result, the air blown out from the air outlet 22L is blown out in the downward direction D.

  On the other hand, the wind direction adjusting unit 30R is the same as the wind direction adjusting unit 30L except that the wind direction adjusting unit 30L faces the opposite direction in the front-rear direction (FB) from the wind direction adjusting unit 30L (SL = 90 degrees). That is, the main portion of the plate 32 faces the outlet 22R side (front side F side) of the housing 20, and the plate 32 is parallel to the axis of the air flow path (front-back direction FB). Therefore, the plate 32 does not substantially contribute to the adjustment of the flow direction of the air flow blown out from the air outlet 22R. Further, each of the plurality of fins 33 is inclined so as to guide air from the lower rear side to the upper front direction when viewed from the front of the working assembly 200. As a result, the air blown out from the outlet 22R is blown out in the upward direction U.

  As described above, the blown-out airflow from the blowout port 22L is blown out in the downward direction D, and the blown-out airflow from the blowout port 22R is blown out in the upward direction U. As a result, the blown-out airflow as the entire working assembly 200 spreads in the vertical direction UD in a side view and was blown out in the front direction F in a top view.

  By the way, in this case, the spread of the blown-out air flow in the left-right direction LR as the entire working assembly 200 was smaller than the cases (c) and (g) in the working assembly 100 described above. It is considered that this is due to the interference between the air flow blown from the air outlet 22L and the air flow blown from the air outlet 22R.

(B) In the case of SL = 0 (zero) degree and SR = 180 degrees In this case, in the wind direction adjusting unit 30L, the plate body 32 faces the left side L side. Therefore, the cross-sectional area of the flow path on the left end L side of the rotary shaft 31L at the downstream end 123 is reduced by the main portion of the plate body 32, and becomes smaller than the cross-sectional area of the flow path on the right R side. Therefore, the amount of air passing through the flow path on the right direction R side relatively increases, the flow velocity increases, and the amount of air guided by the downstream inner wall surface 124 on the right direction R side in the left direction L increases. Further, the plurality of fins 33 are inclined from the lower right (RD) to the upper left (LU) when viewed from the front of the working assembly 200, and contribute to the adjustment of the flow direction of the air flowing in the front-rear direction (FB). do not do. Therefore, the air blown out from the air outlet 22L is not guided in the vertical direction (UD). As a result, the air blown out from the air outlet 22L is blown out in the left direction L.

  On the other hand, the wind direction adjusting unit 30R is the same as the wind direction adjusting unit 30L except that the wind direction adjusting unit 30L faces the opposite direction in the left-right direction (LR). That is, the plate 32 of the wind direction adjustment unit 30R faces the right side R side. Therefore, the cross-sectional area of the flow path at the downstream end 123 on the right side R of the rotary shaft 31R is reduced by the main portion of the plate 32, and becomes smaller than the cross-sectional area of the flow path on the left side L. Therefore, the amount of air passing through the flow path on the left direction L side relatively increases, the flow velocity increases, and the amount of air guided to the right direction R by the downstream inner wall surface 124 on the left direction L side increases. Further, the plurality of fins 33 are inclined from the lower left (LD) to the upper right (RU) when viewed from the front of the working assembly 200, and do not contribute to the adjustment of the flow direction of the air flowing in the front-rear direction (FB). . Therefore, the air blown out from the air outlet 22R is not guided in the vertical direction (UD). As a result, the air blown out from the air outlet 22R is blown out in the right direction R.

  As described above, the blowout airflow from the blowout port 22L is blown out in the left direction L, and the blowoff airflow from the blowout port 22R is blown out in the right direction R. As a result, the blown-out airflow as the entire working assembly 200 was blown out in the front direction F in a side view and spread in the left-right direction LR in a top view.

  However, in this case, the spread of the blown-out airflow as the entire working assembly 200 in the left-right direction LR was small. It is considered that this is due to the interference between the air flow blown from the air outlet 22L and the air flow blown from the air outlet 22R.

(C) Case of SL = 180 degrees and SR = 0 (zero) degree In this case, in the wind direction adjusting unit 30L, the plate body 32 faces the right direction R side. Therefore, the cross-sectional area of the flow path on the right side R of the rotary shaft 31L at the downstream end 123 is reduced by the main portion of the plate 32, and becomes smaller than the cross-sectional area of the flow path on the left side L. Therefore, the amount of air passing through the flow path on the left direction L side relatively increases, the flow velocity increases, and the amount of air guided to the right direction R by the downstream inner wall surface 124 on the left direction L side increases. Further, the plurality of fins 33 are inclined from the lower left (LD) to the upper right (RU) when viewed from the front of the working assembly 200, and do not contribute to the adjustment of the flow direction of the air flowing in the front-rear direction (FB). . Therefore, the air blown out from the air outlet 22L is not guided in the vertical direction (UD). As a result, the air blown out from the air outlet 22L is blown out in the right direction R.

  On the other hand, the wind direction adjusting unit 30R is the same as the wind direction adjusting unit 30L except that the wind direction adjusting unit 30L faces the opposite direction in the left-right direction (LR). That is, the plate body 32 of the wind direction adjustment unit 30R faces the left side L side. Therefore, the cross-sectional area of the flow path on the left end L side of the rotary shaft 31R at the downstream end 123 is reduced by the main portion of the plate 32, and becomes smaller than the cross-sectional area of the flow path on the right R side. Therefore, the amount of air passing through the flow path on the right direction R side relatively increases, the flow velocity increases, and the amount of air guided by the downstream inner wall surface 124 on the right direction R side in the left direction L increases. Further, the plurality of fins 33 are inclined from the lower right (RD) to the upper left (LU) when viewed from the front of the working assembly 200, and contribute to the adjustment of the flow direction of the air flowing in the front-rear direction (FB). do not do. Therefore, the air blown out from the air outlet 22R is not guided in the vertical direction (UD). As a result, the air blown out from the air outlet 22R is blown out in the left direction L.

  As described above, the blown-out airflow from the blowout port 22L is blown out in the right direction R, and the blown-out airflow from the blowout port 22R is blown out in the left direction L. Therefore, the blown-out airflow from the blowout port 22L and the blown-out airflow from the blowout port 22R collide / merge with each other immediately after being blown out, balance each other, and flow in the front direction. As a result, the blown-out airflow as the entire working assembly 200 was blown out in the front direction F in both the side view and the top view.

(D) Case of SL = 225 degrees and SR = 135 degrees In this case, in the wind direction adjusting unit 30L, the plate body 32 is in a state of being rotated by 225 degrees in the positive direction (rotation angle SL = 225 degrees). In this case, the cross-sectional area of the flow path at the downstream end 123 on the right side R of the rotary shaft 31L is reduced by the main portion of the plate 32, and is smaller than the cross-sectional area of the flow path on the left side L. Therefore, the amount of air passing through the flow path on the left direction L side relatively increases, the flow velocity increases, and the amount of air guided to the right direction R by the downstream inner wall surface 124 on the left direction L side increases. Further, the plurality of fins 33 are inclined so as to guide the air from the lower left rear to the upper right front when viewed from the front of the working assembly 200. Therefore, when the air passing through the flow path on the left direction L side is guided to the right direction R side by the downstream inner wall surface 124 on the left direction L side as described above, the air is the long axis of the plurality of fins 33. Flow along the direction. As a result, the air blown out from the air outlet 22L is blown out in the rightward direction R (Ru) slightly closer to the upward direction U.

  On the other hand, in the wind direction adjusting unit 30R, the plate body 32 is rotated in the forward direction by 135 degrees (rotation angle SR = 135 degrees). In this case, the cross-sectional area of the flow path at the downstream end 123 on the right side R of the rotary shaft 31R is reduced by the main part of the plate 32, and becomes smaller than the cross-sectional area of the flow path on the left side L. Therefore, the amount of air passing through the flow path on the left direction L side relatively increases, the flow velocity increases, and the amount of air guided to the right direction R by the downstream inner wall surface 124 on the left direction L side increases. Further, the plurality of fins 33 are inclined so as to guide air from the upper right rear side to the lower left front side when viewed from the front of the working assembly 200. Therefore, when the air passing through the flow path on the left L side is guided in the right direction R by the downstream inner wall surface 124 on the left L side as described above, the air is in the long axis direction of the plurality of fins 33. Flowing along. As a result, the air blown out from the air outlet 22R is blown out in the rightward direction R (Rd) slightly closer to the downward direction D.

  As described above, the blown-out airflow from the outlet 22L is blown out in the rightward direction R (Ru) slightly closer to the upward U, and the blown-out airflow from the outlet 22R is slightly rightward R (Rd) closer to the downward D. ). As a result, the blown-out airflow as the entire working assembly 200 was blown out in the front direction F while maintaining a slight spread in the side view, and was blown out in the right direction R in the top view.

  However, in this case, the spread of the blown air flow in the vertical direction UD as the entire working assembly 200 was small. It is considered that this is due to the interference between the air flow blown from the air outlet 22L and the air flow blown from the air outlet 22R.

(E) In the case of SL = 180 degrees and SR = 135 degrees In this case, with respect to the wind direction adjusting unit 30L, the plate body 32 faces the right direction R side similarly to the wind direction adjusting unit 30L in the case of (c) described above. ing. Therefore, the air blown out from the outlet 22L is guided in the right direction R by the downstream inner wall surface 124 on the left direction L side, and is not guided in the vertical direction (UD). As a result, the air blown out from the air outlet 22L is blown out in the right direction R.

  On the other hand, the wind direction adjusting unit 30R is in a state in which the plate body 32 is rotated 135 degrees in the forward direction (rotation angle SR = 135 degrees), similarly to the wind direction adjusting unit 30R in the case of (d) described above. Therefore, the air blown out from the air outlet 22R is guided in the right direction R by the downstream inner wall surface 124 on the left direction L side and flows in the downward direction D to some extent along the long axis direction of the plurality of fins 33. . As a result, the air blown out from the air outlet 22R is blown out in the rightward direction R (Rd) slightly closer to the downward direction D.

  As described above, the blown-out airflow from the blowout port 22L is blown out in the right direction R, and the blown-out airflow from the blowout port 22R is blown out in the right direction R (Rd) slightly closer to the downward direction D. Therefore, as a result of the collision / merge of the blowout airflow from the blowout port 22L and the blowoff airflow from the blowout port 22R, the blowout air flow as the entire working assembly 200 is slightly smaller than the front direction F in a side view. It was blown out in the downward direction D, and was blown out in the right direction R in a top view.

  However, in this case, the spread of the blown air flow in the vertical direction UD as the entire working assembly 200 was small. It is considered that this is due to the interference between the air flow blown from the air outlet 22L and the air flow blown from the air outlet 22R.

(F) In the case of SL = 180 degrees and SR = 225 degrees In this case as well, in the wind direction adjusting unit 30L, the plate body 32 faces the right side R side as in the cases of (c) and (e) described above. ing. Therefore, the air blown out from the outlet 22L is guided in the right direction R by the downstream inner wall surface 124 on the left direction L side, and is not guided in the vertical direction (UD). As a result, the air blown out from the air outlet 22L is blown out in the right direction R.

  On the other hand, the wind direction adjusting unit 30R is in a state in which the plate body 32 is rotated 225 degrees in the positive direction (rotation angle SR = 225 degrees), similarly to the wind direction adjusting unit 30L in the case of (d) described above. Therefore, the air blown out from the outlet 22R is guided to the right R by the downstream inner wall surface 124 on the left L side, and flows to the upper direction U to some extent along the long axis direction of the plurality of fins 33. . As a result, the air blown out from the air outlet 22L is blown out in the rightward direction R (Ru) slightly closer to the upward direction U.

  As described above, the blown-out airflow from the blowout port 22L is blown out in the right direction R, and the blown-out airflow from the blowout port 22R is blown out in the right direction R (Ru) slightly closer to the upward direction U. Therefore, as a result of the collision / merge of the blowout airflow from the blowout port 22L and the blowoff airflow from the blowout port 22R, the blowout air flow as the entire working assembly 200 is slightly smaller than the front direction F in a side view. It was blown out in the upward direction U, and was blown out in the right direction R in a top view.

  However, in this case, the spread of the blown air flow in the vertical direction UD as the entire working assembly 200 was small. It is considered that this is due to the interference between the air flow blown from the air outlet 22L and the air flow blown from the air outlet 22R.

(G) Case of SL = 315 degrees and SR = 225 degrees In this case, in the wind direction adjusting unit 30L, the plate body 32 is in a state of being rotated by 315 degrees in the positive direction (rotation angle SL = 315 degrees). In this case, the cross-sectional area of the flow path on the left end L side of the rotary shaft 31L at the downstream end 123 is reduced by the main portion of the plate 32, and becomes smaller than the cross-sectional area of the flow path on the right R side. Therefore, the amount of air passing through the flow path on the right direction R side relatively increases, the flow velocity increases, and the amount of air guided by the downstream inner wall surface 124 on the right direction R side in the left direction L increases. Further, the plurality of fins 33 are inclined so as to guide the air from the lower right rear side to the upper left front direction when viewed from the front of the working assembly 200. Therefore, when the air passing through the flow passage on the right direction R side is guided to the left direction L side by the downstream inner wall surface 124 on the right direction R side as described above, the air is the long axis of the plurality of fins 33. A certain amount of upward flow U along the direction. As a result, the air blown out from the air outlet 22L is blown out in the leftward direction L (Lu) slightly closer to the upward direction U.

  On the other hand, in the wind direction adjusting unit 30R, the plate body 32 is rotated in the forward direction by 225 degrees, similarly to the wind direction adjusting unit 30L in the case of (d) and the wind direction adjusting unit 30R in the case of (f). There is (rotation angle SR = 225 degrees). Therefore, the air blown out from the outlet 22R is guided to the right R by the downstream inner wall surface 124 on the left L side, and flows to the upper direction U to some extent along the long axis direction of the plurality of fins 33. . As a result, the air blown out from the air outlet 22R is blown out in the rightward direction R (Ru) slightly closer to the upward direction U.

  As described above, the blown-out airflow from the blowout port 22L is blown out in the leftward direction L (Lu) slightly closer to the upward direction U, and the blown-out airflow from the blowout port 22R is slightly moved to the rightward direction R (Ru) toward the upward direction U. ). Therefore, both the blown-out airflow from the blowout port 22L and the blown-out airflow from the blowout port 22R are blown out slightly toward the upper direction U, and are blown out in the left direction L and the right direction R, respectively. As a result, the blown-out airflow as the entire working assembly 200 was blown out in a direction U slightly above the front direction F in a side view, and was blown out in a lateral direction LR in a top view.

  However, in this case, the spread of the blown-out airflow as the entire working assembly 200 in the left-right direction LR was small. It is considered that this is due to the interference between the air flow blown from the air outlet 22L and the air flow blown from the air outlet 22R.

(H) In the case of SL = 45 degrees and SR = 135 degrees In this case, in the wind direction adjusting unit 30L, the plate body 32 is in the state of being rotated by 45 degrees in the positive direction (rotation angle SL = 45 degrees). In this case, the cross-sectional area of the flow path on the left end L side of the rotary shaft 31L at the downstream end 123 is reduced by the main portion of the plate 32, and becomes smaller than the cross-sectional area of the flow path on the right R side. Therefore, the amount of air passing through the flow path on the right direction R side relatively increases, the flow velocity increases, and the amount of air guided by the downstream inner wall surface 124 on the right direction R side in the left direction L increases. Further, the plurality of fins 33 are inclined so as to guide the air from the upper left rear to the lower right front when viewed from the front of the working assembly 200. Therefore, when the air passing through the flow path on the right direction R side is guided in the left direction L by the downstream inner wall surface 124 on the right direction R side as described above, the air is in the long axis direction of the plurality of fins 33. Flows in the downward direction U. As a result, the air blown out from the air outlet 22L is blown out in the leftward direction L (Ld) slightly closer to the downward direction D.

  On the other hand, the wind direction adjusting unit 30R is in a state in which the plate body 32 is rotated 135 degrees in the forward direction (rotation angle SR = 135), similarly to the wind direction adjusting unit 30R in the cases (d) and (e) described above. Every time). Therefore, the air blown out from the air outlet 22R is guided in the right direction R by the downstream inner wall surface 124 on the left direction L side and flows in the downward direction D to some extent along the long axis direction of the plurality of fins 33. . As a result, the air blown out from the air outlet 22R is blown out in the rightward direction R (Rd) slightly closer to the downward direction D.

  As described above, the air flow blown out from the air outlet 22L is blown out in the left direction L (Ld) slightly closer to the downward direction D, and the air flow blown out from the air outlet 22R is slightly moved to the right direction R (Rd in the lower direction D. ). Therefore, both the blown-out airflow from the blowout port 22L and the blown-out airflow from the blowout port 22R are blown out slightly toward the upper direction U, and are blown out in the left direction L and the right direction R, respectively. As a result, the blown-out airflow of the entire working assembly 200 was blown out in a direction D slightly below the front direction F in a side view, and was blown out in a lateral direction LR in a top view.

  However, in this case, the spread of the blown-out airflow as the entire working assembly 200 in the left-right direction LR was small. It is considered that this is due to the interference between the air flow blown from the air outlet 22L and the air flow blown from the air outlet 22R.

  The correspondence relationship between the rotation angles SL and SR of the wind direction adjusting units 30L and 30R and the flow direction of the blown air flow in the embodiment assembly 200 described above is summarized in Table 2 below.

  As described above, the implementation assembly 200 also adjusts the rotation angles SL and SR of the rotation shafts 31L and 31R of the airflow direction adjustment units 30L and 30R as appropriate, so that the flow directions of the air blown out from the air outlets 22L and 22R. Can be controlled. Therefore, according to the implementation assembly 200, it is possible to achieve more downsizing and more freely design the shapes of the air outlets 22L and 22R without impairing the function as the air blowing device, as compared with the conventional device. You can

  Further, in the working assembly 200, the two wind direction adjusting units 30L and 30R rotate about the rotation axes 31L and 31R in different phases. As a result, the flow directions of the blown-out airflows blown out from the air outlets 22L and 22R are different, and as described above, the blown-out airflows are blown out in a wider range or the blown-out airflows blown out from different air blowing devices are different. These blowout air streams can be converged by the interference.

  As described above, in the working assembly 200, the rotation angles SL and SR of the two wind direction adjusting units 30L and 30R are set independently of each other. However, the wind direction adjusting units 30L and 30R may be configured to rotate so that the respective rotation angles SL and SR satisfy a certain relationship, for example, by a gear mechanism or the like. Specifically, for example, the rotating shaft 31L and the rotating shaft 31R may be configured to rotate in the same direction with a constant phase difference, or the rotating shaft 31L and the rotating shaft 31R rotate in opposite directions. It may be configured to do so.

<< 4th Embodiment >>
By the way, in the case where a plurality of wind direction adjusting units are provided like the working assembly 200 and at least one of the wind direction adjusting units is rotated around the rotation axis in a phase different from that of the other wind direction adjusting units, as described above, Interference of blown air streams from different outlets can occur. As a result, due to unintended convergence or divergence of these blown air streams, for example, the blown air stream may be blown out in an unintended direction, or the blown air stream may not be blown out in the intended direction. .

  Therefore, the aggregate of the air blowing devices according to another embodiment of the present invention (hereinafter, also referred to as “implemented aggregate 300”) is an interference of the flow of air blown from the adjacent outlets. An interference prevention unit for preventing the above is further provided.

  According to the working assembly 300, interference of the flow of the air blown from different outlets (blowing air flow) is prevented, so that unintended convergence or divergence of these blowing air flows is reduced. As a result, it is possible to reduce the problem that the blown-out airflow as a whole of the assembly of air blowing devices is blown out in an unintended direction or is not blown out in a target direction.

  The working assembly 300 has the same configuration as that of the working assembly 200 described above, except that the working assembly 300 further includes an interference prevention unit that prevents interference of the flow of air blown from the adjacent outlets. Therefore, the description of the configuration of the working assembly 300 other than the interference prevention unit will be omitted. On the other hand, a specific example of the interference prevention unit included in the working assembly 300 will be described in detail below.

<Specific example 1 of the interference prevention unit>
FIG. 14 is a schematic diagram showing one specific example of the interference prevention unit 130 included in the working assembly 300. (A) is a front view of the working assembly 300, and (b) is a bottom view of the working assembly 300.

  The implementation assembly 300 illustrated in FIG. 14 is an area between the outlets 22L and 22R (in FIG. 14) as an interference prevention unit 130 that prevents interference of the flow of air blown out from the outlets 22L and 22R. A partition-shaped (or plate-shaped) projection 130a is provided upright on a portion surrounded by a broken line in (a) (see a hatched portion). As a result, as shown in FIG. 14B, it is possible to physically reduce the interference between the adjacent blown air flows (white arrows).

  The specific size and shape of the partition-shaped projection 130a can be appropriately determined according to, for example, the flow direction and flow rate (air volume) of the blown air flow assumed in the working assembly 300. The material forming the protrusions 130a can be appropriately determined according to, for example, the size and shape of the protrusions 130a determined as described above.

<Specific example 2 of the interference prevention unit>
FIG. 15 is a schematic diagram showing another specific example of the interference prevention unit 130 included in the working assembly 300. Similarly to FIG. 14, (a) is a front view of the working assembly 300, and (b) is a bottom view of the working assembly 300.

  The interference prevention unit 130 included in the working assembly 300 illustrated in FIG. 15 has an opening provided in a region between the outlet 22L and the outlet 22R (a portion surrounded by a broken line in FIG. 15A). It is configured so that air is blown out from 130b (see the hatched portion shown in FIG. 15 (a)). Typically, the interference prevention unit 130 blows out air from a slit-shaped opening 130b provided between the adjacent outlets 22L and 22R (shown in black in FIG. 15B). See arrow). The flow of air blown out from the opening 130b (black arrow) is present between adjacent blown air flows (white arrow) as shown in FIG. The interference of the blown air flow can be reduced.

  The specific size and shape of the opening 130b can be appropriately determined according to, for example, the flow direction and flow rate (air volume) of the blown air flow assumed in the working assembly 300. Further, the flow direction and flow rate (air flow rate) of the air flow blown out from the opening 130b is also appropriate according to, for example, the flow direction and flow rate (air flow rate) of the blown air flow assumed in the working assembly 300. Can be set. Furthermore, the mechanism for blowing air out of the opening 130b is not particularly limited as long as the above object can be achieved. Typically, as shown by the dotted line in FIG. 15B, the air introduced from the inlet 21 side of the working assembly 300 is blown out from the opening 130b.

<Specific example 3 of the interference prevention unit>
FIG. 16 is a schematic view showing yet another specific example of the interference prevention unit 130 included in the working assembly 300. As in FIGS. 14 and 15, (a) is a front view of the working assembly 300, and (b) is a bottom view of the working assembly 300.

  The interference prevention unit 130 included in the working assembly 300 illustrated in FIG. 16 includes a groove 130c formed in a region between the outlets 22L and 22R (a portion surrounded by a broken line in FIG. 16A). It is composed by (see the shaded area). Typically, the interference prevention unit 130 introduces air around the groove 130c from both ends (on the upward U side and the downward D side) into the groove (black shown in FIG. 16A). See the filled arrow). The introduced ambient air promotes the generation of an accompanying flow due to the blown air flow (see the black arrow shown in FIG. 15B). This accompanying flow can be interposed between the adjacent blown air flows (white arrows) to reduce the interference of these blown air flows.

  The specific size and shape of the groove 130c can be appropriately determined according to, for example, the flow direction and flow rate (air volume) of the blown air flow assumed in the working assembly 300. As is clear from the above description, the mechanism for introducing the surrounding air into the inside of the groove 130c so as to promote the generation of the accompanying flow due to the blown air flow is the groove 130c. Other than that, it is not particularly required.

<< Fifth Embodiment >>
By the way, as described above, the air blowing device and the assembly thereof according to the present invention can control the flow direction and flow rate of the blown air flow by rotating the wind direction adjusting unit. However, the air blowing device and the assembly thereof according to the present invention may separately include a mechanism for adjusting the flow rate of the air supplied to the downstream end through the air flow path.

  Therefore, the aggregate of the air blowing devices according to another embodiment of the present invention (hereinafter, also referred to as “implemented aggregate 400”) adjusts the flow rate of the air supplied to the downstream end. An air volume adjusting unit is further provided.

  FIG. 17A is a schematic cross-sectional view of a working assembly 400 including the air volume adjusting unit 140 taken along a horizontal plane, and FIG. 17B is an axis of an air flow path parallel to the rotation shafts 31L and 31R of the wind direction adjusting units 30L and 30R. It is a typical sectional view by a plane containing. As shown in FIG. 17, the air flow rate adjusting unit 140 included in the working assembly 400 is a damper provided on the upstream side of the air flow direction adjusting units 30L and 30R in the air flow path.

  The air volume adjusting unit 140 (damper) is rotatably attached to the housing 20 around a rotation axis 141 parallel to the vertical direction UD, and the cross-sectional area of the air flow path can be changed by the rotation angle. it can. In the working assembly 400, the rotation angle of the air volume adjusting unit 140 (damper) can be changed by rotating the operation knob 144 and the operation shaft 145 of the air volume adjusting unit. Specifically, for example, the operator rotates the operation knob 144 of the air volume adjusting unit 140 (damper) to rotate the operation shaft 145, and the operation shaft 145 is rotated by a mechanism such as a gear and a belt (not shown). It is transmitted to the rotating shaft 141 via. Thereby, the rotation angle of the air volume adjustment unit 140 (damper) can be changed. Alternatively, the rotation angle of the air volume adjusting unit 140 (damper) is set to a desired angle by rotating the rotary shaft 141 using a drive device such as a stepping motor (not shown) in response to an instruction from the operator. It can also be adjusted to.

  As described above, since the flow rate of the air supplied to the downstream end 123 through the air flow path can be adjusted independently of the rotation of the airflow direction adjusting units 30L and 30R, the flow direction and the flow rate of the blown air flow can be adjusted. The combination with and can be controlled more variously.

  It should be noted that the working assembly 400 includes one integrated air flow path at the upstream end of the air flow path, and this integrated air flow path branches so as to communicate with the downstream end 123. It is configured. Then, the air volume adjusting unit 140 is configured to collectively adjust the flow rate of the air supplied to the downstream end portion 123 by one damper provided in the integrated air flow path.

  However, the air volume adjustment unit 140 is configured to individually adjust the flow rate of the air supplied to the downstream end portions 123 of the two air flow direction adjustment units 30L and 30R that form the implementation assembly 400. Good. In this case, the working assembly 400 includes, for example, an air flow path that communicates with each of the two wind direction adjustment units 30L and 30R, and a damper provided on each of the air flow paths upstream of the wind direction adjustment unit. An air volume adjusting unit can be configured.

<< 6th Embodiment >>
By the way, as described above, the flow direction of the blown air flow continuously changes as the rotating shaft of the wind direction adjusting unit rotates. Therefore, depending on the rotation angle of the rotating shaft of the wind direction adjusting unit, the blown air flow may be blown out in an undesired direction and / or an unnecessary direction. In such a case, the above-mentioned air volume adjusting unit reduces the flow rate of the blown air flow blown in an undesired direction and / or an unnecessary direction, or blows the blown air flow in an undesired direction and / or an unnecessary direction. Can be prevented from being blown out.

  In particular, the air volume adjusting unit works in conjunction with the rotation of the wind direction adjusting unit to reduce the flow rate of the blown air stream blown out in an undesired direction and / or an unnecessary direction, or in an undesired direction and / or unnecessary direction. It is preferable that the blown-out airflow can be prevented from being blown out in the direction.

  Therefore, in the assembly of air blowing devices according to another embodiment of the present invention (hereinafter, also referred to as “implemented assembly 500”), the air flow rate adjustment unit is supplied to the downstream end portion. It is possible to adjust the flow rate of the air to be adjusted according to the rotation of the wind direction adjusting unit. According to this, by adjusting the rotation angle of the rotating shaft of the wind direction adjusting unit, the flow rate of the blown air flow blown out in an undesired direction and / or an unnecessary direction without individually operating the air volume adjusting unit. Can be reduced or the blown air stream can be prevented from being blown out in undesired and / or unwanted directions.

  For example, like the implementation assembly 400 described above, the air volume adjustment unit 140 is configured by one damper provided in the integrated air flow path, and the flow rate of the air supplied to the downstream end 123 is collectively indicated. Suppose it is configured to adjust. In such a case, for example, by a mechanism such as a gear and a belt, the rotation angle of the air volume adjusting unit 140 and the rotation angles SL and SR of the wind direction adjusting units 30L and 30R are rotated so as to satisfy a certain relationship. Can be done. Specifically, for example, at the rotation angles SL and SR of the airflow direction adjustment units 30L and 30R in which the blown airflow is blown out in an undesired direction and / or an unnecessary direction, the air volume adjustment in which the cross-sectional area of the air flow path becomes small. The above mechanism can be configured so that the rotation angle of the unit 140 is obtained. However, it is not essential to link the air volume adjusting unit and the wind direction adjusting unit in this way.

  It should be noted that although the embodiment including the two wind direction adjusting units 30L and 30R has been illustrated as each of the embodiment assemblies 100 to 500 described above, it goes without saying that the assembly of the air blowing device according to the present invention is The number of wind direction adjustment units that can be provided is not limited to two. Further, the arrangement of the plurality of wind direction adjusting units included in the assembly of the air blowing devices according to the present invention is not limited to the arrangement described above. That is, the assembly of the air blowing devices according to the present invention can be provided with the required number of airflow direction adjusting units in the required arrangement according to the application and / or the design specification, for example.

  Although some embodiments and modifications having specific configurations have been described with reference to the accompanying drawings for the purpose of describing the present invention, the scope of the present invention is not limited to these exemplary embodiments. It should be understood that the present invention should not be construed as being limited to the embodiments and the modified examples, and appropriate modifications can be made within the scope of the matters described in the claims and the specification.

  DESCRIPTION OF SYMBOLS 10 ... Air blowing device, 20 ... Housing, 21 ... Introducing port, 22, 22L and 22R ... Blowing outlet, 23 and 123 ... Downstream end, 24 ... Downstream inner wall surface 30, 30L and 30R ... Wind direction adjusting unit , 31 ... Rotating shafts, 32 ... Plates, 33 ... Fins, 100 and 200 ... Assembly of air blowing devices, 124 ... Downstream inner wall surface (general term for the wall surface of the partition wall 125 and the downstream inner wall surface 24), 125 ... Partition wall, 130 ... Interference prevention unit, 130a ... (Partition-shaped or plate-shaped) protrusion, 130b ... (Slit-shaped) opening, 130c ... Groove, 140 ... Air volume adjusting unit (damper), 141 ... Rotation of air volume adjusting unit Shaft, 144 ... Operation knob of air volume adjusting unit, 145 ... Operation shaft of air volume adjusting unit.

Claims (6)

A casing defining an air flow path and an air outlet, and a wind direction capable of adjusting the flow direction of the air blown out from the air outlet via a downstream end that is the end on the air outlet side of the air flow passage. And an adjustment unit,
The wind direction adjusting unit includes a rotating shaft that is parallel to the opening surface of the outlet, a plate body that is eccentrically rotatable about the rotating shaft, and a plate that intersects the rotating shaft at a plurality of positions aligned on the rotating shaft. A plurality of fins which are shaped like members,
Each of the plurality of fins is a rotation region that is inclined with respect to the rotation axis, intersects with the plate body, and is a region through which the plate body passes when the plate body rotates around the rotation axis. Exists within
The casing defines the downstream end portion by a downstream inner wall surface that is an inner wall surface curved along the rotation region, and penetrates the downstream inner wall surface to open to the air flow path. Defining the outlet,
An assembly of air blowing devices comprising a plurality of air blowing devices,
At least one of the wind direction adjusting units included in the plurality of air blowing devices is configured to rotate around the rotation axis in a phase different from that of the other wind direction adjusting units,
At least a part of the flow of air blown from the adjacent outlets is converged or diverged by interference ,
Further Ru comprising an interference prevention unit for preventing interference of the flow of air blown from the air outlet adjacent,
An assembly of air blowing devices. An assembly of air blowing devices according to claim 1 ,
The interference prevention unit,
Constituted by a protrusion provided upright between the adjacent outlets,
An assembly of air blowing devices. An assembly of air blowing devices according to claim 1 ,
The interference prevention unit,
It is configured to blow out air from an opening provided between the adjacent outlets.
An assembly of air blowing devices. An assembly of air blowing devices according to claim 1 ,
The interference prevention unit,
Constituted by a groove formed between the adjacent outlets,
An assembly of air blowing devices. An assembly of air blowing devices according to any one of claims 1 to 4 , wherein:
Further comprising an air volume adjusting unit for adjusting the flow rate of the air supplied to the downstream side end,
An assembly of air blowing devices. The assembly of the air blowing device according to claim 5 ,
The air volume adjustment unit,
The flow rate of the air supplied to the downstream end is adjusted in accordance with the rotation of the wind direction adjusting unit,
An assembly of air blowing devices.

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