Wind direction adjusting device

Abstract

To provide a wind direction adjusting device for improving comfort.SOLUTION: The wind direction adjusting device 1 includes four capacitance sensors 50 that detect capacitance values, and a control unit 60 that gives a drive command to the first drive mechanism 40 and the second drive mechanism 41 based on the capacitance values detected by the capacitance sensors 50. The four capacitance sensors 50 include a pair of blow-out port side sensors 51 disposed along a first side portion AX1 and a second side portion 14a, which are a pair of side portions parallel to the first rotation axis 14b, of the opening end portion 14 on the blow-out port 13 side of the case 10; And a pair of fin side sensors 52 respectively arranged on a first separation edge part 20a and a second separation edge part 20c which are two separation edge parts set by partitioning a front edge part 20d on the downstream side of the lateral fin 20 positioned at the center of the case 10 among the lateral fins 20 which are at least one or more air outlet side fins.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a wind direction adjustment device. [Background technology]

[0002] Conventionally, there are airflow direction adjustment devices that are installed in vehicles such as automobiles to adjust the direction of airflow supplied from the vehicle's air conditioning system into the vehicle cabin. Patent Document 1 discloses technology related to an air blower in which detection electrodes are arranged at four locations on a frame around the periphery of an air outlet, and horizontal or vertical louvers are rotated based on changes in the capacitance of each detection electrode due to gesture input by an operator. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-191780 Summary of the Invention [Problem to be solved by the invention]

[0004] In the air blower described in Patent Document 1, since the detection electrodes are arranged around the air outlet, for example, if the air outlet is large in the horizontal direction, it is difficult for the operator to rotate the vertical louvers left and right to the desired position while feeling the wind with their hands, which makes it difficult to achieve comfort. Also, visual adjustment by the operator (the driver) to rotate the louvers to the desired position may not be desirable depending on the driving situation.

[0005] The present invention has been made in view of the problems inherent in the prior art, and an object of the present invention is to provide a wind direction adjusting device that improves comfort. [Means for solving the problem]

[0006] An airflow direction adjustment device according to one aspect of the present invention comprises a case having an air passage from an inlet to an outlet, at least one outlet-side fin arranged inside the air passage and having a first rotation axis that intersects with the extension direction of the air passage, an upstream-side fin arranged inside the air passage upstream of the outlet-side fin and having a second rotation axis that intersects with both the extension direction of the air passage and the first rotation axis, a first drive mechanism that rotates the outlet-side fin, a second drive mechanism that rotates the upstream-side fin, four capacitance sensors that detect capacitance values, and a control unit that issues drive commands to the first drive mechanism and the second drive mechanism based on the capacitance values ​​detected by the capacitance sensors, wherein the four capacitance sensors are composed of a pair of outlet-side sensors arranged along a pair of sides parallel to the first rotation axis of the opening end of the case on the outlet side, and a pair of fin-side sensors that are each arranged at two separation edge portions set by dividing from the center the downstream edge portion of the outlet-side fin located at the center of the case, among the at least one outlet-side fin. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide an airflow direction adjusting device that improves comfort. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of an airflow direction adjustment device according to an embodiment; [Figure 2] FIG. 2 is a control block diagram of the airflow direction adjustment device according to the embodiment. [Figure 3] FIG. 10 is a schematic diagram illustrating the assignment of names to four capacitive sensors. [Figure 4] This is a truth table for four sensors with assigned names. [Figure 5] 10 is a diagram illustrating an example of the position of a hand when detecting a capacitance value when the wind direction is to the right. FIG. [Figure 6] 10A and 10B are diagrams illustrating examples of hand positions when capacitance values ​​are detected when the wind direction is from the upper left. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an airflow direction adjustment device according to one embodiment will be described in detail with reference to the drawings. Note that the dimensional proportions in the drawings are exaggerated for the sake of convenience and may differ from the actual proportions.

[0010] FIG. 1 is a perspective view of an airflow direction control device 1 according to one embodiment. The airflow direction control device 1 is installed in a vehicle such as an automobile, and controls the direction of gas (air) supplied from the vehicle's air conditioning system into the passenger compartment. For example, the airflow direction control device 1 is attached to an opening in an instrument panel, center console, or the like inside the passenger compartment of the automobile. Note that an air conditioning system that includes a similar airflow direction control device is sometimes called a ventilator, register, or the like.

[0011] The airflow direction adjustment device 1 includes a case 10, horizontal fins 20, vertical fins 30, a first drive mechanism 40, a second drive mechanism 41, four capacitance sensors 50, and a control unit 60. The case 10, horizontal fins 20, and vertical fins 30 may each be made of a synthetic resin.

[0012] The case 10 is a cylindrical body having a ventilation passage C through which gas flows. In this embodiment, the case 10 is configured by combining four walls 11, namely, a first wall 11a, a second wall 11b, a third wall 11c, and a fourth wall 11d, each of which has a flat plate shape, for example. The first wall 11a faces the second wall 11b in the Z direction in FIG. 1, which corresponds to the direction opposite to the vertical direction. In this case, the third wall 11c faces the fourth wall 11d in the Y direction in FIG. 1, which is parallel to the horizontal direction, for example. One side of the first wall 11a is connected to one side of the second wall 11b via the third wall 11c. The other side of the first wall 11a is connected to the other side of the second wall 11b via the fourth wall 11d. That is, the ventilation passage C is a spatial region surrounded by the first wall portion 11a, the second wall portion 11b, the third wall portion 11c, and the fourth wall portion 11d. The case 10 has a rectangular cylindrical shape, so that the cross section of the ventilation passage C has a rectangular shape.

[0013] In the case 10, one opening communicating with the ventilation passage C is an inlet 12, and the other opening is an outlet 13. The inlet 12 is connected to an air conditioning unit (not shown) installed in the vehicle and introduces gas supplied from the air conditioning unit. When the vehicle to which the present invention is applied is a general automobile, as in this embodiment, the gas is air. On the other hand, the outlet 13 faces the interior of the vehicle and blows the gas circulating through the ventilation passage C into the vehicle compartment as wind. In this embodiment, the extension direction of the ventilation passage C corresponds to the X direction, which is perpendicular to both the Y direction and the Z direction in Figure 1. The opening direction of the outlet 13 is the same as the extension direction of the ventilation passage C. In Figure 1, the air flow direction within the ventilation passage C is indicated schematically by an outline arrow.

[0014] Hereinafter, assuming that the air outlet 13 is viewed from the passenger compartment in the direction opposite to the X direction, the up-down direction is defined along the Z direction, and the left-right direction is defined along the Y direction.

[0015] The horizontal fin 20 is disposed inside the ventilation passage C and is at least one outlet-side fin having a first rotation axis AX1 that intersects with the extension direction of the ventilation passage C. In the present embodiment, for example, one horizontal fin 20 is provided. The horizontal fin 20 has a pair of first rotation shafts 21 protruding from both sides in alignment with the first rotation axis AX1 along the direction in which the third wall portion 11c and the fourth wall portion 11d face each other, and is rotatable about the first rotation axis AX1. That is, the horizontal fin 20 rotates about the first rotation axis AX1 as needed, changing its position relative to the ventilation passage C, which is its fixed portion, thereby changing the airflow direction. In the present embodiment, one of the pair of first rotation shafts 21 is supported in a shaft hole (not shown) formed in the third wall portion 11c, and the other first rotation shaft 21 is supported in a first shaft hole 11e formed in the fourth wall portion 11d.

[0016] The horizontal fin 20 is shaped like a rectangular plate with its longitudinal direction parallel to the first rotation axis AX1. In this embodiment, the first rotation axis AX1 is set at the leading edge 20a, which is the downstream edge of the horizontal fin 20. Therefore, when the horizontal fin 20 rotates at a constant rotation angle, the amount of displacement in the width direction along the Z direction is smallest at the leading edge 20a and largest at the trailing edge 20b, which is the upstream edge of the horizontal fin 20. In this embodiment, the first rotation axis AX1 is set at a midpoint between the first wall 11a and the second wall 11b in the width direction along the Z direction. Note that FIG. 1 illustrates the horizontal fin 20 as being in a so-called neutral state.

[0017] The vertical fins 30 are arranged upstream of the horizontal fins 20 inside the ventilation passage C and are upstream fins having a second rotation axis AX2. The second rotation axis AX2 intersects both the extension direction of the ventilation passage C and the first rotation axis AX1. In the present embodiment, for example, three vertical fins 30 are provided. Each vertical fin 30 has a pair of second rotation shafts 31 protruding from both sides in alignment with the second rotation axis AX2 along the direction in which the first wall portion 11a and the second wall portion 11b face each other, and is rotatable about the second rotation axis AX2. In other words, the vertical fins 30 rotate around the second rotation axis AX2 as appropriate, changing their posture relative to the ventilation passage C, which is their fixed portion, thereby changing the airflow direction. In this embodiment, of the pair of second rotating shafts 31, one second rotating shaft 31 is supported in a second shaft hole 11f formed in the first wall portion 11a, and the other second rotating shaft 31 is supported in a shaft hole (not shown) formed in the second wall portion 11b.

[0018] The rotations of the respective vertical fins 30 are synchronized with one another. In order to synchronize the rotations of the respective vertical fins 30, all of the vertical fins 30 are connected to one another via a link mechanism (not shown) so that when any one vertical fin 30 is rotated by an external force, the other vertical fins 30 also rotate in conjunction with it.

[0019] The vertical fins 30 have substantially the same shape, and are rectangular plates with their longitudinal direction parallel to the second rotation axis AX2. The second rotation axis AX2 may be set at an intermediate position between the downstream edge and the upstream edge of the vertical fin 30. The vertical fins 30 may be spaced apart at equal intervals from each other in the width direction along the Y direction. Note that FIG. 1 illustrates the vertical fins 30 in a neutral state.

[0020] The first drive mechanism 40 drives the horizontal fins 20 to rotate. For example, the first drive mechanism 40 may be a motor attached to the outer surface of the fourth wall portion 11d of the case 10 and having a rotation shaft connected to one of the first rotation shafts 21 of the horizontal fins 20.

[0021] The second drive mechanism 41 drives the vertical fins 30 to rotate. For example, the second drive mechanism 41 may be a motor attached to the outer surface of the second wall portion 11b of the case 10 and having a rotation shaft connected to one of the second rotation shafts 31 of one vertical fin 30.

[0022] The four capacitance sensors 50 detect capacitance values. Specifically, the capacitance sensors 50 are electrodes made of strip-shaped conductive metal plates. Each capacitance sensor 50 is electrically connected to the control unit 60. When a hand 100 (see FIGS. 5 and 6), which is part of the operator's body, approaches a capacitance sensor 50, the capacitance value between the hand 100 and the capacitance sensor 50 increases. In this embodiment, the four capacitance sensors 50 are composed of a pair of air outlet-side sensors 51 and a pair of fin-side sensors 52.

[0023] The pair of outlet-side sensors 51 are arranged along a pair of sides parallel to the first rotation axis AX1 of the opening end 14 on the side of the outlet 13 of the case 10. The first outlet-side sensor 51a, which is one of the outlet-side sensors 51, is arranged on the first side 14a, which is a part of the opening end 14. The length in the Y direction of the first outlet-side sensor 51a arranged on the first side 14a is set to be equal to the opening dimension of the outlet 13 in the Y direction. The second outlet-side sensor 51b, which is the other outlet-side sensor 51, is arranged on the second side 14b, which is another part of the opening end 14. The length in the Y direction of the second outlet-side sensor 51b arranged on the second side 14b is set to be equal to the opening dimension of the outlet 13 in the Y direction. In this embodiment, the first outlet-side sensor 51a and the second outlet-side sensor 51b have shapes symmetrical to each other in the Z direction across the outlet 13.

[0024] The pair of fin side sensors 52 are respectively disposed at two separation edge portions defined by dividing the front edge portion 20a of at least one horizontal fin 20, which is located at the center of the case 10. In this embodiment, since only one horizontal fin 20 is present, the first separation edge portion 20c and the second separation edge portion 20d defined at the front edge portion 20a of the horizontal fin 20 correspond to the two separation edge portions. The first separation edge portion 20c is the separation edge portion closer to the third wall portion 11c, and the second separation edge portion 20d is the separation edge portion closer to the fourth wall portion 11d. The first fin side sensor 52a, which is one of the fin side sensors 52, is disposed at the first separation edge portion 20c. The second fin side sensor 52b, which is the other fin side sensor 52, is disposed at the second separation edge portion 20d. In this embodiment, the first fin side sensor 52a and the second fin side sensor 52b have shapes symmetrical to each other in the Y direction across the center of the front edge portion 20a. At first separation edge 20c, the end of first fin side sensor 52a closer to third wall 11c is disposed near the side of horizontal fin 20 from which one first pivot shaft 21 projects toward third wall 11c. Similarly, at second separation edge 20d, the end of second fin side sensor 52b closer to fourth wall 11d is disposed near the side of horizontal fin 20 from which the other first pivot shaft 21 projects toward fourth wall 11d.

[0025] 2 is a control block diagram of the airflow direction control device 1. The control unit 60 issues drive commands to the first drive mechanism 40 and the second drive mechanism 41 based on the capacitance values ​​detected by the capacitance sensors 50. Here, to simplify the explanation of the airflow direction adjustment control by the airflow direction control device 1, simple names are assigned to the four capacitance sensors 50.

[0026] FIG. 3 is a schematic diagram illustrating the assignment of names to the four capacitance sensors 50. FIG. 3 schematically illustrates the layout of the capacitance sensors 50 when the front of the airflow direction control device 1, in which the air outlet 13 is provided, is viewed in the direction opposite to the X direction. Hereinafter, the first air outlet-side sensor 51a will be referred to as the "first sensor S1," the first fin-side sensor 52a as the "second sensor S2," the second fin-side sensor 52b as the "third sensor S3," and the second air outlet-side sensor 51b as the "fourth sensor S4." Hereinafter, the capacitance sensors 50 will be collectively referred to simply as "sensor S." The names of these sensors S are assigned sensor numbers in order from top to bottom in the Z direction.

[0027] Next, wind direction adjustment control by the wind direction adjustment device 1 will be described.

[0028] The control unit 60 classifies the capacitance value when the operator's hand 100 approaches each sensor S in advance, so that if the capacitance value exceeds a preset threshold, it is set to "1 (true)" and if the capacitance value does not exceed the threshold, it is set to "0 (false)." Here, when the capacitance value of a certain sensor S exceeds the threshold, it corresponds to a state in which the hand 100 approaches the sensor S without contact, or a state in which the hand 100 is in contact with the sensor S. On the other hand, when the capacitance value of a certain sensor S does not exceed the threshold, it corresponds to a state in which the hand 100 is not considered to be approaching the sensor S.

[0029] 4 is a truth table for the four sensors S. The truth table shows all true / false patterns of the four sensors S and drive commands to the first drive mechanism 40 and the second drive mechanism 41 as calculation results obtained for each pattern.

[0030] First, when all four sensors S are "0 (false)," it is considered that the hand 100 is not held over the air outlet 13, and the control unit 60 does not issue a drive command to either the first drive mechanism 40 or the second drive mechanism 41. In other words, neither the horizontal fins 20 nor the vertical fins 30 operate.

[0031] Next, if any one of the four sensors S is "1 (true)", the control unit 60 does not issue a drive command to either the first drive mechanism 40 or the second drive mechanism 41. In other words, neither the horizontal fins 20 nor the vertical fins 30 operate.

[0032] Next, if two or more but less than four of the four sensors S are "1 (true)", the control unit 60 issues a drive command according to each true / false pattern as shown in the truth table.

[0033] Fig. 5 is a diagram illustrating the position of the hand 100 when detecting the capacitance value when the vertical fins 30 operate so that the airflow direction caused by the airflow direction adjustment device 1 is to the right. For convenience, Fig. 5 shows the horizontal fins 20 in which the second sensor S2 and the third sensor S3 are arranged in the airflow direction adjustment device 1, but does not show the vertical fins 30.

[0034] As an example, referring to Fig. 5, the operator's hand 100 approaches the air outlet 13 in a manner that shifts it to the right side. In this case, the control unit 60 can determine that the first sensor S1, the third sensor S3, and the fourth sensor S4 are all "1 (true)," and only the second sensor S2 is "0 (false)." When the control unit 60 selects such a true / false pattern, it issues a drive command to the second drive mechanism 41 to turn the vertical fins 30 to the right, as shown in the truth table. This causes the vertical fins 30 to operate to turn to the right, resulting in a change in the airflow direction to the right.

[0035] 6 is a diagram illustrating the position of the hand 100 when detecting the capacitance value when the horizontal fins 20 and the vertical fins 30 operate so that the airflow direction from the airflow direction adjustment device 1 is to the upper left. Note that, in FIG. 6 as well, the horizontal fins 20 are shown in the airflow direction adjustment device 1, but the vertical fins 30 are not shown, just like in FIG. 5.

[0036] 6, for example, the operator's hand 100 approaches the air outlet 13 in a manner that moves it toward the left and toward the upper side. In this case, the control unit 60 can determine that the first sensor S1 and the second sensor S2 are "1 (true)" and the third sensor S3 and the fourth sensor S4 are "0 (false)." When the control unit 60 selects such a true / false pattern, it issues a drive command to the first drive mechanism 40 to orient the horizontal fins 20 upward and to the second drive mechanism 41 to orient the vertical fins 30 leftward, as shown in the truth table. As a result, the horizontal fins 20 operate to orient upward and the vertical fins 30 to orient leftward, resulting in a change in the airflow direction to the upper left.

[0037] In the truth table, other true / false patterns exist where only the second sensor S2 and the third sensor S3, which are a pair of fin-side sensors 52, are "1 (true)" and the first sensor S1 and the fourth sensor S4 are "0 (false)." In addition, there is a case where only the first sensor S1 and the fourth sensor S4, which are a pair of air outlet-side sensors 51, are "1 (true)" and the second sensor S2 and the third sensor S3 are "0 (false)." For these two examples, these true / false patterns are unlikely to be selected normally based on the shape of the hand 100, and therefore the control unit 60 does not issue a drive command to either the first drive mechanism 40 or the second drive mechanism 41.

[0038] Finally, when all four sensors S are "1 (true)", it is assumed that the air outlet 13 is entirely covered by the hand 100 and the operator has not instructed a desired airflow direction, so the control unit 60 does not issue a drive command to either the first drive mechanism 40 or the second drive mechanism 41. In other words, neither the horizontal fins 20 nor the vertical fins 30 operate.

[0039] Here, with regard to the capacitance threshold, by appropriately adjusting the capacitor capacity or resistance value at the connection between the control unit 60 and the sensor S, the control unit 60 can be made to determine that the sensor is in a proximity state, i.e., "1 (true)," even if the hand 100 is not in contact with the sensor S. This allows, for example, the design to be improved by hiding the front of the sensor S with a cover, and also makes it possible to prevent the contact surface from becoming dirty because the operator does not need to touch the sensor S with the hand 100.

[0040] Next, the effects of the airflow direction adjustment device 1 will be described.

[0041] The airflow direction control device 1 includes a case 10 having an air passage C extending from an inlet 12 to an outlet 13. The airflow direction control device 1 is disposed inside the air passage C and includes at least one outlet-side fin having a first rotation axis AX1 that intersects with the extension direction of the air passage C. The airflow direction control device 1 is disposed inside the air passage C upstream of the outlet-side fin and includes an upstream-side fin having a second rotation axis AX2 that intersects with both the extension direction of the air passage C and the first rotation axis AX1. The airflow direction control device 1 includes a first drive mechanism 40 that rotates the outlet-side fin and a second drive mechanism 41 that rotates the upstream-side fin. The airflow direction control device 1 also includes four capacitance sensors 50 that detect capacitance values ​​and a control unit 60 that issues drive commands to the first drive mechanism 40 and the second drive mechanism 41 based on the capacitance values ​​detected by the capacitance sensors 50. The four capacitance sensors 50 are composed of a pair of outlet-side sensors 51 and a pair of fin-side sensors 52. The pair of outlet-side sensors 51 are arranged along a first side 14a and a second side 14b, which are a pair of sides parallel to the first rotation axis AX1, of the opening end 14 on the outlet 13 side of the case 10. The pair of fin-side sensors 52 are respectively arranged at two separated edges that are set by dividing, from the center, the downstream edge of the outlet-side fin that is located at the center of the case 10 out of at least one or more outlet-side fins.

[0042] In the above example, the extension direction of the air passage C corresponds to the X direction. In the above example, the outlet-side fins correspond to the horizontal fins 20, and the upstream-side fins correspond to the vertical fins 30. Furthermore, assuming that the outlet-side fins are the horizontal fins 20, the two separation edges where the pair of fin-side sensors 52 are arranged are the first separation edge 20c and the second separation edge 20d set on the downstream front edge 20a of the horizontal fin 20.

[0043] First, due to the structure and control of the airflow direction adjustment device 1, when changing the airflow direction to a desired direction, the operator can hold their hand 100 over the air outlet 13 to align it with the desired airflow direction, and rotate the fin to the desired position while feeling the wind, thereby improving comfort.

[0044] Furthermore, in the airflow direction adjustment device 1, two of the four capacitance sensors 50 are a pair of fin-side sensors 52 arranged on the outlet-side fins, that is, arranged inside the air outlet 13. Therefore, the control unit 60 can grasp the position of the hand 100 more accurately or reliably and reflect this in the drive command than when all capacitance sensors 50 are arranged on the open end 14 around the air outlet 13, thereby further improving comfort.

[0045] As described above, according to this embodiment, it is possible to provide an airflow direction control device 1 that improves comfort.

[0046] Furthermore, in the airflow direction control device 1, the control unit 60 may issue a drive command when the capacitance values ​​detected by two or more but less than four capacitance sensors 50 exceed a threshold value.

[0047] According to the airflow direction control device 1, even if only one of the four capacitance sensors 50 determines that the hand 100 has approached, i.e., the truth table indicates "1 (true)," the control unit 60 does not issue a drive command to either the first drive mechanism 40 or the second drive mechanism 41. Therefore, even if the operator unintentionally brings the hand 100 close to the airflow direction control device 1, it is possible to avoid malfunction of the airflow direction control device 1 due to erroneous detection, and as a result, it is possible to prevent any impairment of comfort in advance.

[0048] However, in this case, the control unit 60 does not issue a drive command if only the two capacitance values ​​detected by the pair of outlet-side sensors 51 or only the capacitance values ​​detected by the pair of fin-side sensors 52 exceed the threshold value preset for each capacitance sensor 50. As illustrated in the example using the truth table above, based on the shape of the hand 100, it is generally difficult to imagine that only the pair of outlet-side sensors 51 will be "1 (true)" and only the pair of fin-side sensors 52 will be "0 (false)." The same applies to the case where only the pair of fin-side sensors 52 will be "1 (true)" and only the pair of outlet-side sensors 51 will be "0 (false)." Therefore, in these two cases, the control unit 60 does not need to issue a drive command to either the first drive mechanism 40 or the second drive mechanism 41.

[0049] In the airflow direction adjustment device 1, the first rotation axis AX1 may be set at the downstream edge of the outlet-side fin.

[0050] Here, as in the above example, when the outlet-side fins are horizontal fins 20, the first rotation axis AX1 of the horizontal fins 20 is set at the downstream-side front edge portion 20a.

[0051] According to the airflow direction adjustment device 1, even if the outlet-side fin rotates, the displacement of the positions of the pair of fin-side sensors 52 can be made smaller than when the first rotation axis AX1 is set at another position on the outlet-side fin, which is advantageous for obtaining stable capacitance values. This is also advantageous in that even if the pair of fin-side sensors 52 are installed inside the ventilation passage C, they are less likely to obstruct the flow of air passing through the ventilation passage C.

[0052] Furthermore, in the airflow direction adjusting device 1, the cross section of the air passage C perpendicular to the extension direction of the air passage C may be horizontally long.

[0053] The four capacitance sensors 50 include not only a pair of outlet-side sensors 51 arranged at the open end 14 of the case 10, but also a pair of fin-side sensors 52 arranged on the horizontal fins 20. Therefore, according to the airflow direction adjustment device 1, even if the airflow outlet 13 is horizontally long, the operator can easily rotate the vertical fins 30 left and right to the desired position while feeling the wind with their hands, thereby further improving comfort.

[0054] In the above description, the cross-sectional shape of the ventilation passage C in the case 10 is rectangular, but this embodiment is not limited to this. For example, the first wall portion 11a and the second wall portion 11b may have a configuration or shape in which they are partially or entirely non-parallel.

[0055] Although the embodiment has been described above, the embodiment is not limited to this, and various modifications are possible within the scope of the gist of the embodiment. [Explanation of symbols]

[0056] 1 Wind direction adjustment device 10 cases 12 Introduction 13 Air outlet 14 Open end 14a First side 14b Second side 20 Horizontal fin (outlet side fin) 20a Leading edge 20c 1st separation edge 20d 2nd separating edge 21 First rotating shaft 30 Vertical fin (upstream fin) 40 First drive mechanism 41 Second drive mechanism 50 Capacitive Sensor 51 Air outlet sensor 52 Fin side sensor 60 Control Unit AX1 First rotation axis AX2 Second rotation axis C Ventilation path

Claims

1. a case having an air passage from an inlet to an outlet; At least one outlet-side fin is disposed inside the ventilation passage and has a first rotation axis that intersects with the extension direction of the ventilation passage; an upstream fin disposed inside the ventilation passage on the upstream side of the outlet fin and having a second rotation axis that intersects both the extension direction of the ventilation passage and the first rotation axis; a first drive mechanism that rotates the outlet-side fins; a second drive mechanism that rotates the upstream fin; four capacitance sensors for detecting capacitance values; a control unit that issues drive commands to the first drive mechanism and the second drive mechanism based on the capacitance value detected by the capacitance sensor, The four capacitive sensors are: a pair of air outlet side sensors arranged along a pair of sides parallel to the first pivot axis at an open end of the case on the air outlet side; and a pair of fin-side sensors each disposed at two separated edge portions set by dividing the downstream edge portion of at least one of the outlet-side fins located at the center of the case from the center.

2. The airflow direction adjustment device of claim 1, wherein the control unit issues the drive command when the capacitance values ​​detected by two or more but less than four of the capacitance sensors exceed the threshold value, except when only the two capacitance values ​​detected by each of the pair of air outlet side sensors or only the capacitance values ​​detected by the pair of fin side sensors exceed the threshold value preset for each of the capacitance sensors.

3. The airflow direction adjusting device according to claim 1 or 2, wherein the first rotation axis is set at the downstream edge of the outlet-side fin.

4. A cross section of the ventilation passage perpendicular to the extension direction of the ventilation passage is horizontally long, The airflow direction adjusting device according to claim 1 or 2, wherein the outlet-side fins are horizontal fins.

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