JP2016053426A - Air blowout device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air blowout device with a simple configuration which can adjust a flow direction of a blowout airflow and a degree of convergence and diffusion.SOLUTION: The air blowout device includes: a housing 21 for defining an air flow passage 22 and a blowout port 23; a wind direction adjustment plate 31 capable of adjusting a flow direction of air blown out of the blowout port; and ventilation amount adjustment plates 41, 42 capable of adjusting an amount of air passing through the air flow passage. The air flow passage includes: a first flow passage 22a opening to a blowout port central part; a second flow passage 22b and a third flow passage 22c arranged so as to sandwich the first flow passage, and opening to an outer peripheral part of the blowout port. A flow passage area of an opening end of each of the second flow passage and the third flow passage is smaller than a flow passage area of an opening end of the first flow passage. The wind direction adjustment plate is supported in the first flow passage in a rotatable manner. The ventilation amount adjustment plates can adjust a flow rate in a range from a first state for allowing the ventilation of only the first flow passage, leading to a third state for allowing ventilation of none of the first flow passage, the second flow passage and the third flow passage, via a second state for allowing all ventilation of the first flow passage, the second flow passage and the third flow passage.SELECTED DRAWING: Figure 1

Description

  The present invention adjusts the amount of air passing through the air flow path, the casing defining the air flow path and the air outlet, the wind direction adjusting plate (fin) capable of adjusting the flow direction of the air blown from the air outlet, and The present invention relates to an air blowing device including a possible airflow adjustment plate (damper).

  2. Description of the Related Art Conventionally, an air blowing device for supplying air for air conditioning to the interior of an automobile has been proposed. In general, this type of air blowing device has a configuration capable of adjusting the flow direction of an air flow blown out from the air blowing device (hereinafter referred to as “blowing air flow”).

  For example, one of the conventional air blowing devices (hereinafter referred to as “conventional device”) includes a retainer (cylinder) that defines an air flow path, and a plurality of fins (wind direction adjusting plates) provided at the outlet of the retainer. And. In the conventional device, a mode in which all the fins rotate in the same direction and a part of the fins rotate in a different direction from other fins by a special link mechanism for rotating a plurality of fins in conjunction with each other. The mode can be switched. By this switching, the conventional device forms a converged blown air flow that flows in a direction corresponding to the inclination of the fin in the former mode, and forms a diffused blown air flow that flows in the same direction in the latter mode. . That is, the conventional apparatus can adjust the “flow direction” and the “degree of convergence / diffusion” of the blown air flow by the above configuration.

JP 2002-349946 A

  The conventional apparatus realizes the above-described adjustment of the blown air flow by a special link mechanism capable of switching the above modes. However, since this link mechanism includes a large number of members, the number of members constituting the conventional device is larger than the number of members constituting a general air blowing device. Therefore, the conventional apparatus requires a complicated manufacturing process as compared with a general air blowing apparatus, and it is not easy to reduce the size.

  In view of the above problems, an object of the present invention is to provide an air blowing device capable of adjusting the “flow direction” and “degree of convergence / diffusion” of the blown air flow and having the simplest possible structure.

In order to achieve the above object, an air blowing device of the present invention comprises:
"Case" that defines the air flow path and air outlet, "wind direction adjusting plate" that can adjust the flow direction of air blown from the air outlet, and the amount of air that passes through the air flow path can be adjusted The “air flow adjustment plate” is provided.

Specifically, the air flow path is
A “first flow path” that opens to the center of the air outlet, and a “second flow path” and a “third flow” that are arranged so as to sandwich the first flow path and open to the outer periphery of the air outlet. Road ". However, the flow path area of each open end of the second flow path and the third flow path is larger than the flow path area of the open end of the first flow path.

  Further, the wind direction adjusting plate is rotatably supported in the first flow path.

In addition, the air flow adjustment plate is
“From a“ first state ”that allows ventilation of only the first flow path to a“ second state ”that allows ventilation of all of the first flow path, the second flow path, and the third flow path. The flow rate can be adjusted within a “range until reaching the“ third state ”in which any ventilation of the first flow path, the second flow path, and the third flow path is not permitted”. Has been.

  According to the above configuration, the air flow that passes through the first flow path and blows out from the “center portion of the blowout port”, and the air flow that passes through the second flow path and the third flow path from the “outer peripheral portion of the blowout port”. A blown air flow forms a blown air flow. That is, the former air flow forms the center of the blown air flow, and the latter air flow forms the outer edge of the blown air flow. The “flow direction” of the blown air flow thus formed mainly depends on the direction of the former air flow (the rotation angle of the wind direction adjusting plate). On the other hand, the “degree of convergence / diffusion” of the air flow mainly depends on the flow rate of the latter air flow (the state of the air flow adjustment plate). In other words, the air blowing device can adjust both the “flow direction” and the “degree of convergence / diffusion” of the blown air flow with the above-described configuration that is simpler than that of the conventional device.

  The principle of adjusting the blown air flow described above will be described below.

  First, when the ventilation amount adjusting plate is in the “first state”, the air passing through “only the first flow path” flows toward “the center portion of the air outlet” where the first flow path is opened. Then, the air is blown out in a direction corresponding to the rotation angle of the wind direction adjusting plate “which can adjust the flow direction of the air blown from the blowout port”. As a result, in this case, a “converged” blown air flow that flows in a direction corresponding to the rotation angle of the wind direction adjusting plate is formed.

  On the other hand, when the ventilation amount adjusting plate is in the “second state”, air passes through “all of the first flow path, the second flow path, and the third flow path”. Then, an air flow blown from the “center portion of the outlet” through the first flow path, and an air flow blown from the “outer peripheral portion of the blow outlet” through the second flow path and the third flow path, The former and the latter are mixed while being in contact with each other, and a blown air flow is formed.

  Here, generally, the smaller the channel area at the opening end of the channel, the greater the disturbance of the air flow blown from the opening end due to friction between the wall surface defining the opening end and the air. In the present invention, since the flow area of each open end of each of the second flow path and the third flow path is smaller than the flow area of the open end of the first flow path, the former air flow (first The turbulence in the latter air flow (the air flow through the second flow path and the third flow path) is greater than the turbulence in the air flow through the flow path. Therefore, the turbulence of the outer edge of the blown air flow in the “second state” (air flow through the second flow path and the third flow path) is the same as that in the “first state” (air that has passed through the first flow path). Larger than the turbulence of the flow.

  Therefore, the blown air flow in the second state interferes more strongly with the air around the air blowing device (for example, the frictional force is larger) than the blown air flow in the first state, and more quickly It will spread (diffuse) in the air. Furthermore, since the opening area of the opening end of the first flow path is larger than the opening areas of the opening ends of the second flow path and the third flow path, the flow direction of the blown air flow is the flow of air through the first flow path. It becomes substantially equal to the direction. As a result, when the air flow adjustment plate is in the “second state”, it is “diffused” compared to the blown air flow in the “first state” in the direction corresponding to the rotation angle of the wind direction adjustment plate. A state of blown air flow is formed.

  Further, when the air flow adjustment plate is in the “third state”, “air cannot pass through any of the first flow path, the second flow path, and the third flow path”, and the air is blown out from the air outlet. Not. As a result, in this case, air blowing from the air blowing device is prohibited regardless of the rotation angle of the wind direction adjusting plate.

  As described above, the air blowing device of the present invention can adjust the flow direction of the blown air flow using the air direction adjusting plate, and can adjust the degree of convergence / diffusion of the blown air flow using the air flow adjusting plate. Therefore, the air blowing device of the present invention can adjust the “flow direction” and “degree of convergence / diffusion” of the blown air flow, and has a simple configuration that does not require a member like the link mechanism of the conventional device. It has.

  Note that even the blown air flow in the “first state” gradually diffuses by interfering with the air around the air blowing device. However, as understood from the above description, if the blown air flow in the “first state” and the blown air flow in the “second state” are compared, the former air flow is “converged” than the latter air flow. The latter air flow is more “diffused” than the former air flow.

  The “first flow path, second flow path, and third flow path” need only have the above-described arrangement and flow path area, and the specific shape of each flow path is not particularly limited. However, the larger the ratio of the channel area of the opening end of the first channel to the opening area of the outlet, the easier the adjustment of the “flow direction” of the blown air flow. In addition, the larger the area where the air flow that has passed through the first flow path and the air flow that has passed through the second flow path and the third flow path are in contact with each other, the adjustment of the “degree of convergence / diffusion” of the blown air flow is increased. Becomes easier. Therefore, the specific shape of each flow path can be determined in consideration of the adjustment performance of the blown air flow required for the air blowing device. For example, the air blowing device of the present invention can be configured to have a rectangular shape at the opening end of the first flow path and to provide the second flow path and the third flow path so as to be in contact with the long side thereof.

  The “aeration amount adjusting plate” is not particularly limited as long as it can adjust the aeration state of each flow path as described above. For example, a valve body (for example, a rotary valve and a shutter; see also Aspect 4 described later) or the like that can adjust the flow area of each flow path can be employed as the air flow adjustment plate. It should be noted that the valve body used as the air flow adjustment plate is only required to be able to open and close each flow path, and the degree of convergence / diffusion of the blown air flow by causing the air flow to collide with the valve body itself as in the conventional device. There is no need to adjust. Therefore, even when a valve body is used as the air flow adjustment plate, the air blowing device can be downsized.

  The configuration and effects of the air blowing device of the present invention have been described above. Next, several embodiments (embodiments 1 to 5) of the air blowing device of the present invention will be described below.

・ Mode 1
The greater the turbulence of the airflow that has passed through the second flow path and the third flow path, the stronger the interference between the blown air flow and the air around the air blowing device, and the greater the degree of diffusion of the blown air flow. Therefore, if the turbulence of the air flow through the second flow path and the third flow path is increased, the “convergence / diffusion degree” can be increased even if the opening area of the opening end of the second flow path and the third flow path is reduced. Since the function to adjust can be maintained, the air blowing device can be further downsized without impairing the performance of the air blowing device.

Therefore, the air blowing device of this aspect is
The housing is
A convex portion protruding from the housing into the second flow path, in the vicinity of the open end of the second flow path;
A convex portion protruding from the housing into the third flow path in the vicinity of the open end of the third flow path;
Can be configured as follows.

  According to the above configuration, the “convex portion” protruding into the second flow path and the third flow path disturbs the flow of air passing through the flow paths, and the air disturbed in such a way Blown out. As a result, the air blowing device of this aspect can increase the turbulence of the air flow through the second flow path and the third flow path as compared with the case where the “convex portion” is not provided.

  The specific shape, number, arrangement, and the like of the “convex portions” are not particularly limited as long as they are determined from the viewpoint of promoting turbulence of the air flow through the second flow path and the third flow path. For example, as a convex part, the convex part with one or several cross-sectional shapes can be provided in the position as close as possible to the opening end of each flow path.

・ Aspect 2
Furthermore, even if the turbulence of the air flow through the second flow path and the third flow path is approximately the same, if the air flow is blown out in a wide range (that is, if the degree of diffusion at the initial time of blowing is large). As described above, the blown air flow and the air around the air blowing device strongly interfere with each other, and the degree of diffusion of the blown air flow is large.

Therefore, the air blowing device of this aspect is
The housing is
A nozzle shape that increases the flow channel area of the second flow channel as it approaches the open end of the second flow channel, in the vicinity of the open end of the second flow channel,
A nozzle shape that increases the area of the third flow path as it approaches the opening end of the third flow path, in the vicinity of the opening end of the third flow path;
Can be configured as follows.

  According to the above configuration, the “nozzle shape” of the second flow path and the third flow path increases the degree of diffusion of air passing through the flow paths, and the air thus diffused is blown out of the flow paths. . As a result, the air blowing device of the present aspect can blow out the air flow that has passed through the second flow path and the third flow path over a wider range than when the “nozzle shape” is not provided.

  The specific shape of the “nozzle” is not particularly limited as long as it is determined from the viewpoint of promoting the spread of the air flow through the second flow path and the third flow path. For example, as the nozzle shape, a shape in which a nozzle surface extending in a skirt shape is configured as a flat surface or a curved surface may be used.

・ Aspect 3
From the viewpoint of efficiently adjusting the flow direction of the blown air flow and the degree of convergence / diffusion, it is desirable that the air flow that has passed through each flow path be integrated (contacted / mixed) as reliably as possible.

Therefore, the air blowing device of this aspect is
The housing is
A first partition that separates the first channel and the second channel;
A second partition that separates the first flow path and the third flow path;
The thickness of the first partition is so thin that it approaches the outlet in the vicinity of the outlet,
The thickness of the second partition is so thin that it approaches the air outlet in the vicinity of the air outlet,
Can be configured as follows.

  With the above configuration, the air flow passing through the first flow path flows so as to approach the second flow path along the first partition, and / or the air flow passing through the second flow path is first along the first partition. Flows closer to the flow path. Therefore, these air flows are more reliably contacted and mixed. Similarly, the air flow passing through the first flow path and the air flow passing through the third flow path are also more reliably contacted and mixed. As a result, the air blowing device of this aspect can more reliably integrate the air flow that has passed through each flow path.

・ Aspect 4
The air flow rate adjusting plate is not particularly limited as long as the air flow state of each flow path can be adjusted within the above “range” (specifically, in the order of the first state, the second state, and the third state). Etc. are not particularly limited.

For example, the air flow adjustment plate is
A first adjustment plate that separates the first flow path and the second flow path;
A second adjustment plate that separates the first flow path and the third flow path,
The first adjustment plate and the second adjustment plate can be rotated in opposite directions in conjunction with each other.
Can be configured as follows.

  According to the above configuration, the air flow rate adjusting plate also functions as a partition wall that separates the flow paths (for example, the first partition wall and the second partition wall of the aspect 3). Therefore, compared with the case where an individual (exclusive) member is provided as the air flow adjustment plate, the number of members constituting the air blowing device can be reduced, the manufacturing process of the air blowing device can be simplified, and the air blowing device can be further reduced in size. Can be Furthermore, each flow path can be opened and closed by rotating each adjustment plate that also functions as a partition wall, and adjustment of the ventilation state of each flow path can be realized.

・ Aspect 5
As described above, it is possible to adjust the flow direction of the blown air flow by manipulating the flow direction of the air flow through the first flow path (the rotation angle of the wind direction adjusting plate). On the other hand, generally, as the amount of air passing through the second flow path and the third flow path increases, the friction between the wall surface defining the open end and the air increases, and the air flow from the open end of the flow path is increased. Disturbance increases. Therefore, the degree of convergence / diffusion of the blown air flow can be adjusted by adjusting the amount of air passing through these flow paths (the rotation angle of the air flow adjustment plate of aspect 4).

Therefore, the air blowing device of this aspect is
The rotation angle of the “wind direction adjusting plate” is adjusted based on the “target direction” of the air flow blown out from the air outlet,
The rotation angle of the “air flow adjustment plate” is adjusted based on the “target diffusivity” of the air flow blown out from the outlet.
Can be configured as follows.

  With the above configuration, both the flow direction of the blown air flow and the degree of convergence / diffusion can be adjusted by a relatively simple method.

  The “target direction” can be defined as, for example, the inclination (inclination angle) of the blown air flow with respect to the axis of the air blowing device. Further, the “target diffusivity” can be determined, for example, as a range (a cross-sectional area of the air flow) covered by the blown air flow at a position away from the air outlet of the air blowing device by a predetermined reference distance. The target diffusion degree is substantially synonymous with the target “convergence” degree, and the target diffusion degree can be rephrased as the target convergence degree.

It is sectional drawing which shows an example of embodiment of the air blowing apparatus of this invention. It is a schematic diagram showing the relationship between the rotation angle of a wind direction adjustment board, the rotation angle of an airflow adjustment board, and the state of a blowing airflow. It is a schematic diagram showing the relationship between the rotation angle of a wind direction adjustment board, the rotation angle of an airflow adjustment board, and the state of a blowing airflow. It is a schematic diagram showing the relationship between the rotation angle of a wind direction adjustment board, the rotation angle of an airflow adjustment board, and the state of a blowing airflow. It is a schematic diagram showing the relationship between the rotation angle of a wind direction adjustment board, the rotation angle of an airflow adjustment board, and the state of a blowing airflow. It is a schematic diagram showing the relationship between the rotation angle of a wind direction adjustment board, the rotation angle of an airflow adjustment board, and the state of a blowing airflow. It is a schematic diagram showing the relationship between the rotation angle of a wind direction adjustment board, the rotation angle of an airflow adjustment board, and the state of a blowing airflow. It is sectional drawing which shows an example of other embodiment of the air blowing apparatus of this invention. It is sectional drawing which shows an example of other embodiment of the air blowing apparatus of this invention. It is sectional drawing which shows an example of other embodiment of the air blowing apparatus of this invention. It is sectional drawing which shows an example of other embodiment of the air blowing apparatus of this invention.

  Hereinafter, an embodiment of an air blowing device of the present invention will be described with reference to the drawings.

<Outline of device>
FIG. 1 shows a schematic configuration of an air blowing device 10 (hereinafter referred to as “implementing device 10”) according to an example of an embodiment of the present invention. Specifically, the execution device 10 has a hollow columnar shape (tubular shape) through which airflow can pass through, and FIG. 1 is illustrated by a plane parallel to the axis AX of the execution device 10. The schematic sectional drawing of the implementation apparatus 10 at the time of cut | disconnecting the implementation apparatus 10 to an up-down direction (from the upward direction U mentioned later to the downward direction D) is represented.

  Hereinafter, for the sake of convenience, the direction toward the front of the implementation apparatus 10 along the axis AX is referred to as “front direction F”, and the directions perpendicular to the front direction F and upward and downward of the implementation apparatus 10 are “upward U” and “ This is referred to as “downward direction D”. These vertical directions are defined with reference to the vertical direction when the implementation device 10 is viewed from the vehicle operator when the implementation device 10 is mounted around the dashboard of the vehicle. .

  As shown in FIG. 1, the implementation apparatus 10 includes a housing (tubular body 21), a wind direction adjusting plate (fin 31), and a ventilation amount adjusting plate (first damper 41, second damper 42). Yes. Hereinafter, the structure of these members will be described in more detail.

  The cylindrical body 21 has a square cylindrical retainer 21a and a square annular bezel 21b. By these members, the cylindrical body 21 defines an air flow path 22 inside, and defines an air outlet 23 at an end portion in the front direction F. The cylindrical body 21 passes the air flowing in from the opening 24 in the rear direction (the reverse direction of the front direction F) through the air flow path 22 and then blows out from the opening in the front direction F (the outlet 23). It has become. The arrows in the figure represent this air flow.

  The air flow path 22 opens in the center part of the blower outlet 23 of the cylinder 21 (that is, the opening end is located in the vicinity of the center part) and the first flow path 22a is sandwiched between the air flow path 22 and the first flow path 22a. And a second flow path 22b and a third flow path 22c that open to the outer peripheral portion of the outlet 23 (that is, the opening end is located in the vicinity of the outer peripheral portion).

  More specifically, the first flow path 22a includes a lower surface (a surface in the downward direction D) of the partition wall 25a provided in the retainer 21a, an upper surface (a surface in the upward direction U) of the partition wall 25b, and an inner wall surface of the retainer 21a. This is an area defined by Further, the first flow path 22a is defined by the lower surface (the surface in the downward direction D) of the first damper 41, the upper surface (the surface in the upward direction U) of the second damper 42, and the inner wall surface of the retainer 21a. May also be included. The first flow path 22a exists in the center of the cylinder 21, and the axis AX of the cylinder 21 passes through the first flow path 22a.

  The second flow path 22b is an area defined by the upper surface (the surface in the upward direction U) of the partition wall 25a and the inner wall surface of the retainer 21a, and the first flow path in the upward direction U of the first flow path 22a. 22a is an area arranged adjacent to 22a. Furthermore, the second flow path 22b may include a region defined by the upper surface (the surface in the upward direction U) of the first damper 41 and the inner wall surface of the retainer 21a.

  The third flow path 22c is an area defined by the lower surface (surface in the downward direction D) of the partition wall 25b and the inner wall surface of the retainer 21a, and the first flow path in the downward direction D of the first flow path 22a. 22a is an area arranged adjacent to 22a. Further, the third flow path 22c may include a region defined by the lower surface (the surface in the downward direction D) of the second damper 42 and the inner wall surface of the retainer 21a.

  As shown in partial enlarged views A and B in the figure, the opening area R2 of the opening end of the second flow path 22b is smaller than the opening area R1 of the opening end of the first flow path 22a, and the opening of the third flow path 22c. The opening area R3 at the end is smaller than the opening area R1 at the opening end of the first flow path 22a. The opening area R2 at the opening end of the second flow path 22b and the opening area R3 at the opening end of the third flow path 22c are substantially the same.

  The partition wall 25a is a thin plate-like boundary plate that separates the first flow path 22a and the second flow path 22b. As shown in the partially enlarged view A, the wall surface 25a1 in the downward direction D of the partition wall 25a has a convex shape that protrudes toward the axis AX of the cylindrical body 21 at the end on the outlet 23 side. Furthermore, the upward wall surface 25a2 of the partition wall 25a is inclined toward the axis AX at the end on the outlet 23 side. Due to these shapes, the thickness of the partition wall 25 a becomes thinner in the vicinity of the air outlet 23 as it approaches the air outlet 23.

  The partition wall 25b is a thin plate-like boundary plate that separates the first flow path 22a and the third flow path 22c. As shown in the partial enlarged view B, the upper surface 25b1 of the partition wall 25b has a convex shape that protrudes toward the axis AX of the cylindrical body 21 at the end on the outlet 23 side. Furthermore, the wall surface 25b2 in the downward direction D of the partition wall 25b is inclined toward the axis AX at the end on the outlet 23 side. Due to these shapes, the thickness of the partition wall 25 b becomes thinner in the vicinity of the air outlet 23 as it approaches the air outlet 23.

  The end 25a3 of the partition wall 25a and the end 25b3 on the opening end side of the partition wall 25b are located on the upstream side (opposite to the front direction F) of the outlet 23. Thereby, each of the air that passes through each flow path can be brought into close contact with each other before passing through the air outlet 23. As a result, the influence (flow direction, turbulence, etc.) of one air flow on the other air flow after passing through the outlet 23 is increased, and the function of adjusting the blown air flow described later can be enhanced.

  The fin 31 which is a wind direction adjusting plate is a plate body having a substantially rectangular shape in plan view, and passes through the first flow path 22a according to an angle (rotation angle) when it is rotated around the rotation shaft 31a. It is a plate which can change the flow direction of air (blown air flow). FIG. 1 shows a cross section of the plate. The fin 31 is rotatably supported in the first flow path 22a in the vicinity of the air outlet 23. The rotation angle of the fin 31 is provided in the fin 31 by a desired method (for example, when the operator directly operates the fin 31 via a link member or the like not shown) or according to an instruction from the operator. It can be operated by a motor (not shown).

  The first damper 41 and the second damper 42, which are ventilation amount adjusting plates, are plate bodies having a substantially rectangular shape in plan view. FIG. 1 shows a cross section of the plate. The first damper 41 and the second damper 42 are rotatably provided in the cylindrical body 21 on the upstream side of the partition walls 25a and 25b (the direction opposite to the front direction F).

  Specifically, the first damper 41 has a rotation shaft 41b, and the second damper 42 has a rotation shaft 42b. The first damper 41 and the second damper 42 are connected via a link mechanism (not shown), and can be rotated in the opposite direction in conjunction with each other (details will be described later). The first damper 41 includes an elastic body 41a provided so as to surround the outer periphery thereof, and the second damper 42 includes an elastic body 42a provided so as to surround the outer periphery thereof. When the first damper 41 and the second damper 42 are rotated as will be described later, the elastic body 41a and the elastic body 42a come into contact with the inner wall surface of the retainer 21a and are deformed, and air leaks from the contact portion. prevent.

  The first damper 41 also functions as a partition that separates the first flow path 22a and the second flow path 22b, and the second damper 42 also functions as a partition that separates the first flow path 22a and the third flow path 22c. doing. For example, as indicated by the arrows in the figure, the air that has flowed into the cylindrical body 21 from the opening 24 in the rear direction flows into three flows (air passing through the first flow path 22a) by the first damper 41 and the second damper 42. Flow, air flow passing through the second flow path 22b, and air flow passing through the third flow path 22c). These air flows pass through each flow path and move in the front direction F. And the air which passed the 1st flow path 22a is blown off from the center part of the blower outlet 23, and the air which passed the 2nd flow path 22b and the 3rd flow path 22c is blown off from the outer peripheral part of the blower outlet 23.

  The implementation apparatus 10 changes the flow direction of the blown air flow upstream of the fins 31 (the reverse direction of the front direction F) to the left-right direction of the implementation apparatus 10 (the front-rear direction in FIG. 1). An adjustment plate (not shown) may be provided separately.

  The above is the description of the outline of the execution apparatus 10.

<Actual operation>
Hereinafter, the actual operation of the execution apparatus 10 will be described.
The execution device 10 changes the rotation angle of the airflow direction adjustment plate (fin 31) and the rotation angle of the airflow adjustment plate (first damper 41, second damper 42), thereby “flowing the blown air flow”. Adjust the “direction” and “degree of convergence / diffusion”. Hereinafter, the adjustment of the blown air flow by the implementation apparatus 10 will be described with reference to FIGS. 2 to 8 are schematic cross-sectional views of the implementation device 10 when the implementation device 10 is cut in the vertical direction along a plane parallel to the axis AX of the implementation device 10 as in FIG. 1.

  First, FIGS. 2 to 5 show the case where only the rotation angles of the first damper 41 and the second damper 42 change when the fin 31 is maintained at “a rotation angle parallel to the axis AX”. It is a schematic diagram showing the flow direction of the blown air flow A and the degree of convergence / diffusion.

  As shown in FIG. 2, the rotation angle of the first damper 41 is “the rotation angle for closing the second flow path 22 b”, and the rotation angle of the second damper 42 is “the third flow path 22 c is closed”. In the case of the “rotation angle”, the air that has flowed into the execution apparatus 10 passes only through the first flow path 22a and does not pass through the second flow path 22b and the third flow path 22c (see arrows in the drawing). . Specifically, in this case, the rear end portions of the first damper 41 and the second damper 42 are in contact with the inner wall surface of the retainer 21a, and the first flow path 22a and the second flow path 22b are closed. In this case, the front end portions of the first damper 41 and the second damper 42 in the front direction F are located closer to the axis AX than the partition walls 25a and 25b, but the flow of air in the first flow path 22a. Has no substantial effect.

  In the above case, the first damper 41 and the second damper 42 are in a state (first state) that permits ventilation of only the first flow path 22a. Therefore, the air that has passed through the first flow path 22 a and has flowed in the front direction F flows along the fins 31, and is blown out from the central portion of the outlet 23. As a result, a “converged” blown air flow A is formed in a direction corresponding to the rotation angle of the fin 31 (front direction F).

  As the diffusivity (or convergence) of the blown air flow A, for example, the cross-sectional area of the blown air flow A at a position away from the blowout port 23 by the distance DIS is the opening area R1 of the opening end of the first flow path 22a. The area AR1 is slightly larger than that. Therefore, even in this case (first state), the blown air flow A gradually diffuses by interfering with the air around the implementation apparatus 10. However, as will be described later, the blown air flow in the first state is “converged” as compared to the blown air flow in the second state.

  Next, as shown in FIG. 3, the rotation angle of the first damper 41 becomes “a rotation angle in which the partition wall 25 a and the first damper 41 are parallel”, and the rotation angle of the second damper 42 becomes “the partition wall 25 b and When each damper rotates until the “rotation angle parallel to the second damper 42” is reached, air passes through all of the first flow path 22a, the second flow path 22b, and the third flow path 22c. Specifically, in this case, the rear end portions of the first damper 41 and the second damper 42 are separated from the inner wall surface of the retainer 21a, and the first flow path 22a and the second flow path 22b are opened. Furthermore, the front end portions of the first damper 41 and the second damper 42 in the front direction F exist in the vicinity of the partition walls 25a and 25b (or contact the partition walls 25a and 25b), and the second flow path 22b and the third flow path. Air leakage from 22c to the first flow path 22a is prevented.

  In the above case, the first damper 41 and the second damper 42 are in a state (second state) permitting all ventilation of the first flow path 22a, the second flow path 22b, and the third flow path 22c. In this case, the air that has flowed in the front direction F through the second flow path 22b and the third flow path 22c while the air that has passed through the first flow path 22a is blown out from the central portion of the blowout opening 23. It blows out from the outer periphery. Then, the former is mixed while being in contact with the latter so that a blown air flow A is formed. At this time, the flow areas R2 and R3 at the open ends of the second flow path 22b and the third flow path 22c are smaller than the flow path area R1 at the open end of the first flow path 22a (see FIG. 1). The disturbance of the outer edge of the flow A is larger than that of the blown air flow in the first state (FIG. 2). Therefore, the blown-out air flow A more strongly interferes with the air around the implementation apparatus 10 and spreads (spreads) into the air around the air more quickly. As a result, the blown air flow A in the “diffused” state is formed in a direction (front direction F) according to the rotation angle of the fins 31.

  As the diffusivity of the blown air flow A, the cross-sectional area of the blown air flow A at a position away from the blowout port 23 by the distance DIS is an area AR2 larger than the area AR1 (FIG. 2). That is, the diffusivity in this example (FIG. 3) is larger than the diffusivity in the above example (FIG. 2).

  Further, as shown in FIG. 4, the rotation angle of the first damper 41 becomes “the rotation angle where the tip portion in the back direction of the first damper 41 is in the vicinity of the axis AX”, and the angle of the second damper 42 is “ When each damper rotates until the tip end in the back direction of the first damper 41 reaches a “rotation angle near the axis AX”, air passes through all of the first to third flow paths 22a, 22b, and 22c. However, the amount of air passing through the first flow path 22a is smaller than that shown in FIG. 3, and the amount of air passing through the second flow path 22b and the third flow path 22c is lower than that shown in FIG. Increase. Specifically, in this case, the back end portions of the first damper 41 and the second damper 42 approach each other, so that the opening area of the first flow path 22a (the distance between the tips of the dampers 41 and 42). And the opening area of the second flow path 22b and the third flow path 22c (corresponding to the distance between the tips of the dampers 41 and 42 and the inner wall surface of the retainer 21a) is increased. In this case, the front end portions of the first damper 41 and the second damper 42 in the front direction F are closer to the inner wall surface of the retainer 21a than the partition walls 25a and 25b, but the second flow path 22b and the third The air flow in the flow path 22c is not substantially affected.

  Also in the above case, the first damper 41 and the second damper 42 are in the second state. However, in this case, the amount of air passing through the second flow path 22b and the third flow path 22c increases as compared with the example shown in FIG. As a result, in this case, the blown air flow A that is “diffused” larger than the example shown in FIG. 3 is formed in a direction (front direction F) according to the rotation angle of the fins 31. As the diffusivity of the blown air flow A, the cross-sectional area of the blown air flow A at a position away from the blowout port 23 by the distance DIS is an area AR3 larger than the area AR2 (FIG. 3). That is, the diffusivity in this example (FIG. 4) is larger than the diffusivity in the above example (FIG. 3).

  Furthermore, as shown in FIG. 5, the rotation angle of the first damper 41 and the second damper 42 is “the rotation angle that closes all of the first flow path 22a, the second flow path 22b, and the third flow path 22c”. When the dampers are rotated until the first flow path 22a, the air does not pass through any of the first flow path 22a, the second flow path 22b and the third flow path 22c. Specifically, in this case, the first flow path 22a is closed by the contact between the front end of the first damper 41 in the back direction and the front end of the second damper 42 in the back direction. Furthermore, when the front-end | tip part of the front direction F of the 1st damper 41 and the 2nd damper 42 contacts the inner wall face of the retainer 21a, the 2nd flow path 22b and the 3rd flow path 22c are also closed.

  In the above case, the first damper 41 and the second damper 42 are in a state (third state) in which any ventilation of the first flow path 22a, the second flow path 22b, and the third flow path 22c is not permitted. As a result, in this case, air is not blown out from the implementation device 10.

  Next, FIG. 6 and FIG. 7 show only the rotation angles of the first damper 41 and the second damper 42 when the wind direction adjusting plate (fin 31) is maintained at “the rotation angle facing the upward direction U”. It is a schematic diagram showing the flow direction of the blown air flow A and the degree of convergence / diffusion when changing.

  As shown in FIG. 6, when the first damper 41 and the second damper 42 are in the first state, the air that has flowed in the front direction F through the first flow path 22a flows along the fins 31 and blows. It blows out from the outlet 23. As a result, a “converged” blown air flow A is formed in a direction (upward direction U) corresponding to the rotation angle of the fin 31. As the diffusivity of the blown air flow A, the cross-sectional area of the blown air flow A at a position away from the blowout port 23 by the distance DIS is an area AR4 that is slightly larger than the opening area R1 of the open end of the blowout port 23.

  When the fin 31 is at this rotation angle, not only the flow direction of the air flowing in the vicinity of the fin 31 but also the flow direction of the air flowing in the vicinity of the inner wall surface 25b1 (convex surface) of the partition wall 25b is changed. Change. Therefore, in this case, the air flow is rectified by the fins 31 and the inner wall surface 25b1 (convex surface).

  Next, as shown in FIG. 7, when the first damper 41 and the second damper 42 are in the second state, the air flow passed through the first flow path 22a, and the second flow path 22b and the third flow path 22c. The air flow forms a blown air flow A. As a result, the blown air flow A in the “diffused” state is formed in a direction (upward direction U) corresponding to the rotation angle of the fin 31. As the diffusivity of the blown air flow A, the cross-sectional area of the blown air flow A at a position away from the blowout port 23 by the distance DIS is an area AR5 larger than the area AR4 (FIG. 6).

  As described above, the diffusivity of the blown air flow A increases as the amount of air passing through the flow paths 22b and 22c increases as the dampers 41 and 42 rotate, and the dampers 41 and 42 close all the flow paths ( In the third state), air is not blown out from the execution device 10 (not shown).

  The above is the description of the actual operation of the execution apparatus 10. 6 and 7, the blown air flow when the fin 31 is rotated in the upward direction U has been described. However, the blown air flow when the fin 31 is rotated in the “downward direction D” is the same as described above. Adjusted.

  As described above, the execution apparatus 10 has a simple configuration of the cylinder body 21 having the above-described configuration, the airflow direction adjustment plate (fin 31), and the airflow adjustment plate (first to second dampers 41 to 42). Both the flow direction of the blown air flow A and the degree of convergence / diffusion can be adjusted. Specifically, the implementation apparatus 10 can adjust the diffusivity of the blown air flow A regardless of the flow direction of the blown air flow A. In other words, the implementation apparatus 10 can achieve both adjustment of the flow direction of the blown air flow A (high directivity) and adjustment of the diffusivity.

  In other words, in the implementation device 10, the rotation angle of the fin 31 may be adjusted based on the target direction of the flow direction of the blown air flow A, and the rotation angle of the first damper 41 and the second damper 42. May be adjusted based on the target diffusivity of the blown air flow A.

<Other aspects>
The present invention is not limited to the above embodiment, and various modifications can be employed within the scope of the present invention.

  For example, as shown in FIG. 8, the cylindrical body 21 has a convex portion 26 protruding from the retainer 21a to the second flow path 22b in the vicinity of the opening end of the second flow path 22b (in other words, the outlet 23). May be. Similarly, the cylindrical body 21 may have a convex portion 27 protruding from the retainer 21a to the third flow path 22c in the vicinity of the opening end (the outlet 23) of the third flow path 22c. These convex portions 26 and 27 can promote the disturbance of the air flow through the second flow path 22b and the third flow path 22c, and can enhance the function of adjusting the “degree of convergence / diffusion” of the air blowing device. .

  Furthermore, as shown in FIG. 9, the cylindrical body 21 may have a nozzle shape that increases as the opening area of the second flow path 22 b approaches the opening end (the outlet 23) of the second flow path 22 b. Specifically, the end portion 28 of the bezel 21b may be processed so as to have the same nozzle shape. Similarly, the cylindrical body 21 may have a nozzle shape that increases as the opening area of the third flow path 22c approaches the opening end (the outlet 23) of the third flow path 22c. Specifically, the end portion 29 of the bezel 21b may be processed so as to have the same nozzle shape. The function of adjusting the “degree of convergence / diffusion” of the air blowing device as well as increasing the degree of diffusion at the initial time point when the air flow passing through the second flow path 22b and the third flow path 22c is blown out by these nozzle shapes. Can be increased. Note that the end portions 28 and 29 may be processed into a planar shape or a curved surface shape.

  Furthermore, as shown in FIG. 10, the end on the outlet 23 side of the partition wall 25 a may be configured such that the inner wall surface (surface in the downward direction D) 25 a 1 does not have a convex shape. Similarly, the end on the outlet 23 side of the partition wall 25b may be configured such that the inner wall surface (surface in the upward direction U) 25b1 of the partition wall 25b does not have a convex shape.

  Furthermore, as shown in FIG. 11, the outermost end 25a3 of the partition wall 25a may be provided at the same position as that of the air outlet 23 (on the opening surface of the air outlet 23). Similarly, the end 25b3 on the opening end side of the partition wall 25b may be provided at the same position as the outlet 23.

  Furthermore, two or more wind direction adjusting plates (fins) may be provided in the air blowing device. Similarly, one or three or more ventilation amount adjusting plates (dampers) may be provided in the air blowing device.

  Furthermore, in the implementation apparatus 10, the second flow path 22b and the third flow path 22c are provided above and below the first flow path 22a (upward direction U and downward direction D). However, the second flow path 22b and the third flow path 22c may be provided on the left and right sides of the first flow path 22a, or four flow paths may be provided so as to surround the upper, lower, left, and right sides of the first flow path 22a. Good.

  Furthermore, any one of the embodiments described above may be combined with another embodiment.

  In addition, the implementation apparatus 10 can be attached to the vehicle interior (inner panel) of a motor vehicle, for example. However, the air blowing device of the present invention is not limited to the interior of an automobile, and can be attached to various members for which supply or stop of air is desired, for example.

DESCRIPTION OF SYMBOLS 10 ... Air blowing apparatus, 21 ... Cylindrical body (housing | casing), 22 ... Air flow path, 22a ... 1st flow path, 22b ... 2nd flow path, 22c ... 3rd flow path, 23 ... Air outlet, 25a, 25b ... partition walls, 26, 27 ... convex portions, 28, 29 ... nozzle-like end portions, 31 ... fins (wind direction adjusting plates), 31a ... rotating shafts, 41 ... first damper (air flow rate adjusting plates), 42 ... second. Damper (ventilation adjustment plate)

Claims (6)

A housing that defines an air flow path and an air outlet, a wind direction adjusting plate that can adjust the flow direction of air blown from the air outlet, and an air flow adjustment that can adjust the amount of air passing through the air flow path An air blowing device comprising a plate,
The air flow path is
A first flow path that opens at a central portion of the air outlet, and a second flow path and a third flow path that are disposed so as to sandwich the first flow path and that open to an outer peripheral portion of the air outlet, A first flow path, a second flow path, and a third flow path, each having a flow path area at the open end of each of the second flow path and the third flow path smaller than a flow path area at the open end of one flow path Including
The wind direction adjusting plate is
Supported in the first flow path so as to be rotatable,
The air flow adjustment plate is
From the first state in which the ventilation of only the first flow path is permitted, the first flow is passed through the second state in which the ventilation of all of the first flow path, the second flow path, and the third flow path is permitted. The flow rate can be adjusted within a range up to the third state where no ventilation of the path, the second flow path, and the third flow path is permitted.
Air blowing device. The air blowing device according to claim 1,
The housing is
A convex portion protruding from the housing into the second flow path, in the vicinity of the open end of the second flow path;
A convex portion protruding from the housing into the third flow path in the vicinity of the open end of the third flow path;
Air blowing device. In the air blowing device according to claim 1 or 2,
The housing is
A nozzle shape that increases the flow channel area of the second flow channel as it approaches the open end of the second flow channel, in the vicinity of the open end of the second flow channel,
A nozzle shape that increases the area of the third flow path as it approaches the opening end of the third flow path, in the vicinity of the opening end of the third flow path;
Air blowing device. In the air blowing device according to any one of claims 1 to 3,
The housing is
A first partition that separates the first channel and the second channel;
A second partition that separates the first flow path and the third flow path;
The thickness of the first partition is so thin that it approaches the outlet in the vicinity of the outlet,
The thickness of the second partition is so thin that it approaches the air outlet in the vicinity of the air outlet,
Air blowing device. In the air blowing device according to any one of claims 1 to 4,
The air flow adjustment plate is
A first adjustment plate that separates the first flow path and the second flow path;
A second adjustment plate that separates the first flow path and the third flow path,
The first adjustment plate and the second adjustment plate can be rotated in opposite directions in conjunction with each other.
Air blowing device. In the air blowing device according to claim 5,
The rotation angle of the wind direction adjusting plate is adjusted based on the target direction of the air flow blown out from the air outlet,
The rotation angle of the air flow adjustment plate is adjusted based on the target diffusion degree of the air flow blown out from the air outlet.
Air blowing device.

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