Blowing-out device for air conditioner

Abstract

The invention provides a blow-out device for an air conditioner. The present invention addresses the problem of providing an air-conditioning blow-out device capable of improving comfort. An air-conditioning blow-out device is provided with: a case in which a blow-out opening is formed; the fin main body is arranged in the shell; and a first fin mechanism that displaces the fin body in the flow direction of the wind. The housing has a narrow portion having an area smaller than that of the blow-out opening. The fin body is located between the blow-out opening and the narrow portion in the normal mode, and has a tapered portion whose width increases in the width direction from the upstream side toward the downstream side.

Description

TECHNICAL FIELD

[0001] The present application relates to an air-conditioning blow-out device. BACKGROUND

[0002] As related art of an air-conditioning blow-out device for a vehicle, there is a technology disclosed in Japanese Patent Application Publication No. 5-203252.

[0003] The air-conditioning blow-out device shown in Japanese Patent Application Publication No. 5-203252 is provided with a housing in which a blow-out port is formed at an end portion on a downstream side, and a fin mechanism which is provided in the inside of the housing and which is capable of changing the direction of a flow path by rotation. SUMMARY

[0004] The flow path area of the blow-out port of the housing of the air-conditioning blow-out device disclosed in Japanese Patent Application Publication No. 5-203252 is narrow. As shown in Japanese Patent Application Publication No. 5-203252, since the flow path area of the blow-out port is narrow, the wind speed at the blow-out port rises. Since the wind speed rises at the blow-out port which is located at a position closest to the occupant, the wind of which the wind speed is fast is blown locally to the occupant, and the occupant can feel discomfort. There is room for improvement in terms of comfort. Figure 3

[0005] According to the present disclosure, there is provided an air-conditioning blow-out device,

[0006] The air-conditioning blow-out device is provided with a housing to which air is delivered to the inside, a blow-out port in which air is blown out is formed at an end portion on a downstream side of the housing with reference to the flow direction of the delivered air, and

[0007] a fin body which is provided in the inside of the housing in a displaceable manner,

[0008] the housing has a narrow portion which is smaller in area than the area of the blow-out port,

[0009] the blow-out port has a substantially rectangular shape,

[0010] in a case where a direction parallel to a long side of the blow-out port is set as a first direction, and a direction parallel to a short side which is shorter than the long side is set as a second direction, the fin body is provided so as to extend in the first direction, the fin body is located between the blow-out port and the narrow portion in a normal mode, and the fin body has a tapered portion in which the width in the second direction expands from the upstream side toward the downstream side.

[0011] According to the present disclosure, it is possible to provide an air-conditioning blow-out device which can improve comfort. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 ​This is a perspective view of the air-conditioning blower device according to the embodiment as viewed from above.

[0013] Figure 2 Observed from below Figure 1 A perspective view showing the state of the air-conditioning blower device shown.

[0014] Figure 3 It is along Figure 1 Cross-sectional view of line 3-3.

[0015] Figure 4 It is schematically represented Figure 3 The diagram of the fin body and the first fin mechanism is shown.

[0016] Figure 5 It is schematically represented Figure 3 FIG. 2 shows a second fin mechanism.

[0017] Figure 6 It is schematically represented Figure 3 Figure of the air supply guide mechanism shown.

[0018] Figure 7A This is a diagram illustrating the operation of the air-conditioning blower in normal mode. Figure 7B This is a diagram for explaining the operation of the air-conditioning blower in the air-blowing stop mode.

[0019] Figure 8A This figure explains the function of the air-conditioning blower in the downward air supply mode. Figure 8B This is a diagram for explaining the operation of the air-conditioning blower device in the first center air supply mode.

[0020] Figure 9A This figure explains the function of the air-conditioning blower in the upward air supply mode. Figure 9B This is a diagram for explaining the operation of the air-conditioning blower device in the second center air supply mode. DETAILED DESCRIPTION

[0021] Hereinafter, an embodiment of the present invention will be described based on the drawings. Note that the embodiment shown in the drawings is an example of the present invention, and the present invention is not limited to this embodiment.

[0022] <Example>

[0023] The embodiments will be described based on the drawings.

[0024] Reference Figure 1 The air-conditioning blowing device 10 is used as a blowing device of a vehicle air-conditioning system. The air-conditioning blowing device 10 is installed at the front part of the vehicle interior, for example, and blows air toward the occupants.

[0025] Reference Figure 2and Figure 3 The air-conditioning blower device 10 includes: a housing 20, inside which air is conveyed; a fin body 30, which is disposed inside the housing 20; a first fin mechanism 40, which displaces the fin body 30 in the air supply direction; a second fin mechanism 50, which displaces the fin body 30 in the vertical direction; and an air supply guide mechanism 60, which is disposed so as to be displaceable toward the fin body 30 to guide the direction of the blown air.

[0026] The shell 20 has: an inlet 21, into which the transported air is introduced; a blow-out outlet 22, which faces the vehicle interior and blows air toward the vehicle interior; a narrow portion 23, which is formed between the inlet 21 and the blow-out outlet 22 and has an area smaller than that of the blow-out outlet 22; guide slit portions 24 and 25, which are slit-shaped holes opened on the side to guide the second fin mechanism 50; and a movable wall storage portion 26, which bulges in the upward and downward directions in a manner capable of accommodating a portion of the air supply guide mechanism 60.

[0027] Reference Figure 1 The blowout port 22 is roughly rectangular in shape. Hereinafter, a direction parallel to the long side 22a of the blowout port 22 (in this embodiment, the vehicle width direction) is referred to as a first direction, and a direction parallel to the short side 22b (in this embodiment, the up-down direction) is referred to as a second direction, where the short side 22b is a side shorter than the long side 22a.

[0028] In the case of the air-conditioning blower device 10 having the air outlet 22 vertically elongated, the first direction is the vertical direction, and the second direction is the vehicle width direction (and / or the front-rear direction).

[0029] The fin body 30 extends in the first direction. The portion of the fin body 30 that faces the second fin structure 50 is a connected portion 31 formed in a concave shape and connected to the second fin structure 50. When the fin body 30 is in the normal mode, the fin body 30 is connected to the second fin structure 50. Alternatively, the connected portion 31 may protrude convexly toward the second fin structure 50.

[0030] Reference Figure 3 . The fin body 30 is located between the narrow portion 23 and the air outlet 22 in normal mode, and is located approximately in the center of the air outlet 22 based on the second direction. The fin body 30 is formed into a shape with a roughly fan-shaped cross-section extending along the first direction. The fin body 30 has: a fin body pin portion 32, which is a pin formed at the end portion on the upstream side of the fin body 30 and is connected to the first fin mechanism 40; tapered portions 33, 33, which extend in a manner that expands from the fin body pin portion 32 toward the downstream; and a fin body arc surface portion 34, which is formed in an arc shape in a manner that connects the downstream ends of these tapered portions 33, 33.

[0031] Reference Figure 1 The first fin mechanism 40 includes, for example, a first motor 41, which is a stepping motor that operates when energized; a 1-1 gear 42, which is a gear that rotates when the first motor 41 operates; a first shaft member 43, which is a shaft that passes through the 1-1 gear 42 and is rotatably supported by the housing 20; 1-2 gears 44, which are gears fixed to both ends of the first shaft member 43 and rotated by the rotation of the 1-1 gear 42; and a 1-3 gear 45, which is a gear that meshes with the 1-2 gear 44.

[0032] Reference Figure 4 The first fin mechanism 40 further includes a rack portion 46 that meshes with the 1-3 gear 45 to convert rotational motion into linear motion, and a first link member 47 that is a link connecting the rack portion 46 to the fin body 30 .

[0033] The gear provided in the first motor 41 is referred to as a first driving gear 41 a for transmitting the driving force of the first motor 41 .

[0034] In addition, a motor other than a stepping motor can be used as the first motor 41 .

[0035] When the first motor 41 is activated based on information from the temperature sensor or an occupant's operation, the 1-1 gear 42, the first shaft member 43, the 1-2 gear 44, and the 1-3 gear 45 rotate. This causes the rack portion 46 to displace in the airflow direction, and the fin body 30 to displace in the airflow direction via the first link member 47.

[0036] Reference Figure 2 The second fin mechanism 50 includes, for example, a second motor 51, which is a stepping motor that operates when energized; a 2-1 gear 52, which is a gear that rotates when the second motor 51 operates; a second shaft member 53, which is a shaft that passes through the 2-1 gear 52 and is rotatably supported by the housing 20; sector gears 54, which are sector gears fixed to both ends of the second shaft member 53 and rotated by the rotation of the 2-1 gear 52; and a 2-3 gear 55, which is a gear that meshes with the sector gear 54.

[0037] Reference Figure 5 The second fin mechanism 50 further includes a fin support portion 56 that meshes with the 2-3 gear 55 and is capable of supporting the fin body 30 .

[0038] Hereinafter, the gear provided in the second motor 51 may be referred to as a driving gear 51 a for transmitting the driving force of the motor.

[0039] 2-3 Gear 55 is provided with two gears 55b and 55c on one gear shaft 55a (refer to 55c for details). Figure 1 The gear shaft 55a passes through the housing 20 and is rotatable. One gear 55c is provided outside the housing 20, and the other gear 55b is provided inside the housing 20.

[0040] Reference Figure 1 The fin support portion 56 includes a connecting portion 56a extending in the first direction and connected to the connected portion 31 of the normal mode. Furthermore, when the connected portion 31 is formed in a convex shape, the connecting portion 56a may be formed in a concave shape so as to surround the connected portion 31.

[0041] Furthermore, the fin support portion 56 includes pin-shaped support portion pins 56 b and 56 c that are inserted into the guide slit portions 24 and 25 .

[0042] Reference Figure 5 The fin support portion 56 includes a linear gear portion 56d, which meshes with the 2-3 gear 55 and has teeth arranged in a linear pattern, and an arc gear portion 56e, which meshes with the 2-3 gear 55 and has teeth arranged in an arc pattern. The arc gear portions 56e are provided continuously from both ends of the linear gear portion 56d.

[0043] When the second motor 51 is activated based on information from the temperature sensor and an occupant's operation, the 2-1 gear 52, the sector gear 54, and the 2-3 gear 55 rotate. This causes the fin support 56 to displace in the second direction. When the linear gear portion 56d meshes with the 2-3 gear 55, the fin support 56 displaces linearly in the second direction. When the arc gear portion 56e meshes with the 2-3 gear 55, the fin support 56 oscillates in an arc shape in the second direction, in the airflow direction.

[0044] Reference Figure 2 The air blowing guide mechanism 60 includes a second motor 51 , a 2-1 gear 52 , a second shaft member 53 , a 3-2 gear 62 fixed to the second shaft member 53 , and a 3-3 gear 63 meshing with the 3-2 gear 62 .

[0045] Reference Figure 6 The air supply guide mechanism 60 further includes: a 3-4 gear 64, which is a gear meshing with the 3-3 gear 63; a fan-shaped gear portion 65, which is a fan-shaped gear meshing with the 3-4 gear 64; a first guide fin 66, which is connected to the fan-shaped gear portion 65 and can swing around the connected portion; a guide link component 67, which is connected to the first guide fin 66; and a second guide fin 68, which is connected to the guide link component 67 and swings in conjunction with the first guide fin 66.

[0046] The second motor 51 , the 2-1 gear 52 , and the second shaft member 53 are common components of the second fin mechanism 50 .

[0047] The 3-2 gear 62, the 3-3 gear 63, and the 3-4 gear 64 can be referred to as driven gears 62-64 that are driven by the drive gear 51a. The driven gears 62-64 may also have portions without teeth. The untoothed portion of the 3-3 gear 63 is referred to as the first intermittent portion 63a, and the untoothed portion of the 3-4 gear 64 is referred to as the second intermittent portion 64b.

[0048] Reference Figure 3 The first guide fin 66 includes an inner wall portion 66a extending from the narrow portion 23 along the tapered portion 33 to the air outlet 22, and an arcuate guide fin end surface portion 66b extending from the distal end of the inner wall portion 66a. The shape of the guide fin end surface portion 66b mimics the shape of the peripheral edge of the air outlet 22. In normal mode, the guide fin end surface portion 66b is housed in the movable wall housing portion 26.

[0049] The second guide fin 68 includes an inner wall portion 68a extending from the narrow portion 23 along the tapered portion 33 to the air outlet 22, and an arcuate guide fin end surface portion 68b extending from the distal end of the inner wall portion 68a. The shape of the guide fin end surface portion 68b mimics the shape of the peripheral edge of the air outlet 22. In normal mode, the guide fin end surface portion 68b is housed in the movable wall housing portion 26.

[0050] Hereinafter, the first guide fins 66 and the second guide fins 68 may be collectively referred to as guide fins 66 and 68 .

[0051] Reference Figure 6 . With the teeth of all the gears meshing, when the second motor 51 operates based on information from the temperature sensor and the operation of the occupant, the 2-1 gear 52, the 3-2 gear 62, the 3-3 gear 63, the 3-4 gear 64, and the fan-shaped gear portion 65 rotate. Through the rotation of the fan-shaped gear portion 65, the first guide fin 66 swings around the end of the inner wall portion 66a (the portion where the fan-shaped gear portion 65 is mounted). The guide link component 67 connected to the end of the first guide fin 66 interlocks to swing the second guide fin 68. The second guide fin 68 swings around the end of the inner wall portion 68a. The first guide fin 66 and the second guide fin 68 swing while maintaining approximately the same distance.

[0052] When the 3-3 gear 63 rotates, the first intermittent portion 63a shifts to a position closest to the 3-4 gear 64. At this time, the first intermittent portion 63a is located closest to the 3-4 gear 64. As a result, the first intermittent portion 63a and the second intermittent portion 64b are opposite each other. When the first intermittent portion 63a and the second intermittent portion 64b are opposite each other, the driving force of the 3-3 gear 63 is not transmitted to the 3-4 gear 64, and only the 3-3 gear 63 rotates. While the 3-4 gear 64 is not rotating, the sector gear portion 65 and the guide fins 66 and 68 are also not shifted. When the 3-3 gear 63 continues to rotate and the teeth of the 3-3 gear 63 mesh with the teeth next to the second intermittent portion 64b, the 3-3 gear 63 and the guide fins 66 and 68 shift.

[0053] Refer to Figure 5 The positions where the intermittent portions 63a and 64b are formed correspond to the positions where the linear gear portion 56d is formed. Thus, even when the second motor 51 is operating, the guide fins 66 and 68 can be kept from operating.

[0054] More specifically, while the 2-3 gear 55 is meshing with the linear gear portion 56d and the fin support portion 56 is linearly displaced in the second direction, the guide fins 66 and 68 are inoperative. While the 2-3 gear 55 is meshing with the circular arc gear portion 56e and the fin support portion 56 is oscillating, the guide fins 66 and 68 are operative.

[0055] Next, the operation of the air-conditioning blowing device 10 will be described.

[0056] Reference Figure 7A .exist Figure 7A FIG2 shows the air-conditioning blower device 10 in normal mode. In normal mode, the fin body 30 is located between the narrow portion 23 and the blowout port 22 and approximately in the center of the flow path relative to the second direction. In normal mode, the delivered air is divided vertically by the fin body 30 and blown out vertically from the blowout port 22.

[0057] The two divided airflows are blown out from the outlet 22 in vertical and diverging directions. However, due to the drop in air pressure in the central region (downstream of the fin body arcuate surface 34) sandwiched between the two airflows, portions of the two airflows are drawn into the central region, bending so that they approach each other. This diffuses the wind, enabling air to be delivered to a wide area, including the central region.

[0058] Reference Figure 7B . Figure 7B The air-conditioning blower 10 is shown in the air-supply stop mode. Figure 7A) To switch to the air supply stop mode, the first fin mechanism 40 is activated, shifting the fin body 30 upstream. The contact between the fin body 30 and the narrow portion 23 blocks the flow path, stopping air supply. In other words, air is no longer blown out of the air outlet 22.

[0059] In addition, the fin body 30 can also be Figure 7A Location and Figure 7B It can be used at any position in the middle of the position (between the position on the most downstream side and the position abutting against the narrow part 23).

[0060] Furthermore, as long as the air flow can be stopped by the fin body 30 blocking the flow path, the fin body 30 need not abut the narrow portion 23. For example, the fin body 30 may abut the upstream end of the first guide fin 66 or the upstream end of the second guide fin 68. It is sufficient as long as the fin body 30 abuts against the fin body 30 to block the flow path when the fin body 30 is displaced upstream from the normal mode.

[0061] Reference Figure 1 In the air supply stop mode, the connected portion 31 slides upstream relative to the connecting portion 56a. When the air supply stop mode returns to the normal mode, the connected portion 31 is connected to the connecting portion 56a.

[0062] Reference Figure 8A .exist Figure 8A FIG shows the air-conditioning blower 10 in the downward air supply mode. Figure 7A ) To change to the downward air supply mode, the second fin mechanism 50 is activated, causing the fin support portion 56 to linearly shift upward. The fin body 30 supported by the fin support portion 56 also linearly shifts upward. In the downward air supply mode, air is blown downward from between the lower surface of the fin body 30 and the first guide fin 66.

[0063] Refer to Figure 6 When switching from the normal mode to the downward air supply mode, even if the second motor 51 is operating, the guide fins 66 and 68 will not operate. When switching from the normal mode to the downward air supply mode, the first intermittent portion 63a and the second intermittent portion 64b are in opposing positions, and the driving force of the second motor 51 is not transmitted to the guide fins 66 and 68.

[0064] Reference Figure 8B . Figure 8B The air-conditioning blower 10 is shown in the first central air supply mode. Figure 8A) When changing to the first central air supply mode, the second fin mechanism 50 and the air supply guide mechanism 60 are operated to swing the fin support portion 56 upward. The fin body 30 supported by the fin support portion 56 also swings upward. A portion of the fin body 30 and the second guide fin 68 are accommodated inside the movable wall accommodation portion 26. On the other hand, the inner wall portion 66a of the first guide fin 66 enters the extension line from the flow path on the upstream side. Air is blown out approximately horizontally from between the lower surface of the fin body 30 and the first guide fin 66. At this time, the occupant can visually confirm at least a portion of the guide fin end surface portion 66b, covering the area between the downstream end portion of the inner wall portion 66a of the guide fin 66 and the open end of the blow-out port 22.

[0065] Reference Figure 9A . Figure 9A The air-conditioning blower 10 is shown in the upper air supply mode. Figure 7A When the upward air flow mode is switched, the second fin mechanism 50 is activated, causing the fin support portion 56 to linearly displace downward. The fin body 30 supported by the fin support portion 56 also linearly displaces downward. In the upward air flow mode, air is blown upward from between the upper surface of the fin body 30 and the second guide fin 68.

[0066] Refer to Figure 6 When switching from the normal mode to the upward air supply mode, even if the second motor 51 is operating, the guide fins 66 and 68 will not operate. When switching from the normal mode to the upward air supply mode, the first intermittent portion 63a and the second intermittent portion 64b are in opposing positions, and the driving force of the second motor 51 is not transmitted to the guide fins 66 and 68.

[0067] Reference Figure 9B . Figure 9B The air-conditioning blower 10 is shown in the second central air supply mode. Figure 9A ) When changing to the second central air supply mode, the second fin mechanism 50 and the air supply guide mechanism 60 are operated to swing the fin support portion 56 downward. The fin body 30 supported by the fin support portion 56 also swings downward. A portion of the fin body 30 and the first guide fin 66 are accommodated inside the movable wall accommodation portion 26. On the other hand, the inner wall portion 68a of the second guide fin 68 enters the extension line from the flow path on the upstream side. Air is blown out approximately horizontally from between the upper surface of the fin body 30 and the second guide fin 68. At this time, the occupant can visually confirm at least a portion of the guide fin end surface portion 68b, covering the area between the downstream end portion of the inner wall portion 68a of the guide fin 68 and the open end of the blow-out port 22.

[0068] The air-conditioning blowing device 10 described above will now be summarized.

[0069] Reference Figure 3 First, the air conditioning blower device 10 includes a housing 20, within which air is delivered, a blowout port 22 for blowing out air formed at the downstream end of the housing 20, based on the flow direction of the delivered air, and a fin body 30 displaceably disposed within the housing 20. The housing 20 includes a narrow portion 23, the area of ​​the blowout port 22 of which is smaller than the area of ​​the blowout port 22.

[0070] Refer to Figure 1 The air outlet 22 is generally rectangular in shape. When a direction parallel to the long side 22a of the air outlet 22 is defined as a first direction and a direction parallel to the short side 22b, which is a side shorter than the long side 22a, is defined as a second direction, the fin body 30 is arranged along the first direction and, in the normal mode, is located between the air outlet 22 and the narrow portion 23 and has a tapered portion 33 whose width in the second direction widens from the upstream side toward the downstream side.

[0071] Reference Figure 7A and Figure 7B The state of stopping the air from the outlet 22 is set as the air supply stop mode (refer to Figure 7B ) in the case of normal mode (see Figure 7A ) The change to the air supply stop mode is performed as follows: the fin body 30 is shifted toward the upstream side, so that the tapered portion 33 abuts against the narrow portion 23, thereby blocking the narrow portion 23.

[0072] When the area of ​​the blow-out port 22 is minimized, the flow rate increases at the position closest to the occupant, i.e., the blow-out port 22, and the range blowing toward the occupant is also narrow, resulting in strong winds blowing toward the occupant. Without reducing the area of ​​the blow-out port 22, a narrow portion 23 is formed on the upstream side, and the air is divided into two parts between the narrow portion 23 and the blow-out port 22 by the fin body 30 (tapered portion 33). The two divided airflows are blown out from the blow-out port 22 in directions away from each other, upward and downward. However, since part of the two airflows is introduced into the central area, the wind is diffused, thereby delivering air to a wider range including the central area. This allows the intensity of the air blowing toward the occupant to be appropriately high, thereby improving comfort.

[0073] Reference Figure 3 Second, in the first air-conditioning blower device 10 , inner walls 66 a and 68 a are formed inside the housing 20 , extending from the narrow portion 23 along the fin body 30 to the blowout port 22 . This allows the blown air to be smoothly guided from the narrow portion 23 to the blowout port 22 .

[0074] Third, in the first or second air-conditioning blowing device 10, the width of the fin body 30 in the second direction is smaller than the short side 22b of the blowing outlet 22 (see Figure 1 ) width. It is possible to ensure that the flow path from the narrow portion 23 to the blow-out port 22 will not be further narrowed.

[0075] Fourthly, in any one of the first to third air-conditioning blower devices 10, the fin body 30 can be displaced toward the upstream side along the air supply direction. Figure 7A Location and Figure 7B It can be used at any position in the middle of the position (between the position on the most downstream side and the position abutting against the narrow part 23).

[0076] Fifth, in the fourth air-conditioning blower device 10, the fin body 30 shifts upstream and abuts against the inner wall of the flow path, thereby closing the flow path and stopping airflow. Airflow is controlled by operating parallel to the airflow direction (approximately parallel to the line of sight) at a position upstream of the air outlet. This allows switching between airflow mode and airflow stop mode without changing the appearance.

[0077] Reference Figure 4 Sixth, in the air-conditioning blower device 10 according to any one of the first to fifth aspects, the first fin mechanism 40 includes a first motor 41 that generates a rotational driving force when energized, and a rack portion 46 that converts the driving force of the first motor 41 into linear motion. The fin body 30 is connected to the rack portion 46. This allows the fin body 30 to be moved to a more precise position.

[0078] Reference Figure 5 Seventh, in any one of the first to sixth air-conditioning blower devices 10, a second fin mechanism 50 for displacing the fin body 30 in the second direction is further provided. By displacing the fin body 30 in the second direction, the direction of air supply can be adjusted.

[0079] Eighth, in the seventh air-conditioning blower device 10, the second fin mechanism 50 includes a second motor 51 that generates a rotational driving force when energized, and a fin support 56 that is displaced in the second direction by the driving force of the second motor 51 and is capable of supporting the fin body 30. This allows the fin body 30 to be moved to a more accurate position.

[0080] Ninth, in the eighth air-conditioning blower device 10, the fin support portion 56 includes a linear gear portion 56d, in which teeth are arranged in a linear shape to linearly displace the fin support portion 56 in the second direction; and an arc gear portion 56e, in which teeth are arranged in an arc shape to arcuately displace the fin support portion 56 in the second direction. The linear gear portion 56d is formed continuously with the arc gear portion 56e. This allows the fin body 30 to be linearly displaced in the second direction and also to be rotated, enabling air to be supplied in various directions.

[0081] Reference Figure 6 Tenth, the air-conditioning blower device 10 according to any one of the first to ninth items further includes an air supply guide mechanism 60 that is displaceable toward the fin body 30 and guides the direction of air blown out from the air outlet 22. The air supply guide mechanism 60 includes guide fins 66 and 68 that extend along the fin body 30 and are displaceable toward the fin body 30. By displacing the guide fins 66 and 68, the direction of air around the fin body 30 can be adjusted.

[0082] Eleventh, in the tenth air-conditioning blower device 10, the downstream ends of the guide fins 66 and 68 (see guide fin end surfaces 66b and 68b) are shaped to mimic the peripheral edge of the air outlet 22 of the casing 20. This shields the interior of the casing 20 in the center air supply mode, improving the appearance. Furthermore, dust and objects can be prevented from entering the movable wall housing 26 or from being caught by fingers.

[0083] Twelfth, in the tenth or eleventh air-conditioning blower device 10, the air guide mechanism 60 includes the second motor 51 as a driving source, and the guide fins 66 and 68 are swung by the driving force of the second motor 51. This allows for more fine adjustment of the position of the guide fins.

[0084] Refer to Figure 6 Thirteenth, in the air-conditioning blower device 10 according to any one of the tenth to twelfth aspects, the air supply guide mechanism 60 includes: a second motor 51 as a drive source; a drive gear 51a that rotates when driven by the second motor 51; and driven gears 62 to 64 that are rotatable when the drive gear 51a rotates. At least a portion of the driven gears 62 to 64 has a structure in which all teeth are engaged in a portion corresponding to the circular arc gear portion 56e, while the driving force of the drive gear 51a is not transmitted to the air supply guide mechanism 60 in a portion corresponding to the linear gear portion 56d.

[0085] The second fin mechanism 50 shares a common motor and can be linked with the second fin mechanism 50 . In addition, a region where no driving force is transmitted can be formed by not forming teeth in a portion.

[0086] Reference Figure 8A and Figure 8B Fourteenth, in the air-conditioning blower device 10 according to any one of the tenth to thirteenth aspects, the guide fins 66 and 68 can abut against the tapered portion 33. By abutting the guide fins 66 and 68 against the fin body 30, air can be blown only from one side of the fin body 30.

[0087] Reference Figure 8B and Figure 9B Fifteenth, in the air-conditioning blower device 10 according to any one of the tenth to twelfth aspects, the guide fins 66 and 68 are displaceable to an extension line of the upstream flow path. When one of the guide fins 66 and 68 (relative to the narrow portion 23) is displaced to an extension line of the upstream flow path and the other is displaced into the movable wall housing 26, air is blown out from the blowout port 22 in a direction parallel to the upstream flow path.

[0088] Furthermore, the air-conditioning blower device of the present invention can be installed not only in the front portion of the vehicle interior but also on a console, ceiling, pillar, etc. Assuming that the air supply guide mechanism 60 is not provided, the inner wall portions 66a and 68a can also be formed by the housing 20. In this case, the movable wall housing portion 26 is unnecessary.

[0089] As long as the functions and effects of the present invention are achieved, the present invention is not limited to the examples.

Claims

1. A blowing device for an air conditioner, wherein: The air-conditioning blowing device comprises: a housing in which air is transported, and a blow-out port for blowing out the air is formed at an end portion on a downstream side thereof, based on a flow direction of the transported air; and The fin body is arranged inside the housing in a displaceable manner. The housing has a narrow portion having an area smaller than that of the air outlet. The blowing outlet is roughly rectangular. When a direction parallel to the long side of the blow-out port is defined as a first direction and a direction parallel to a short side shorter than the long side is defined as a second direction, the fin body is arranged throughout the first direction, and in normal mode, the fin body is located between the blow-out port and the narrow portion, and has a tapered portion whose width in the second direction expands from the upstream side toward the downstream side.

2. The air-conditioning blower according to claim 1, wherein: An inner wall portion extending from the narrow portion along the fin body to the air outlet is formed inside the housing.

3. The air-conditioning blower according to claim 1, wherein: The width of the fin body in the second direction is smaller than the width of the short side of the air outlet.

4. The air-conditioning blower according to claim 1, wherein: The air-conditioning blower device includes a first fin mechanism that displaces the fin body in an air blowing direction.

5. The air-conditioning blower according to claim 4, wherein: The first fin mechanism includes: a first motor that generates a driving force in a rotational direction when energized; and a rack portion that converts the driving force of the first motor into a linear motion. The fin body is connected to the rack portion.

6. The air-conditioning blower according to claim 4, wherein: The air-conditioning blower device further includes a second fin mechanism for displacing the fin body in a second direction.

7. The air-conditioning blower according to claim 6, wherein: The second fin mechanism includes a second motor that generates a driving force in a rotational direction when energized, and a fin support portion that is displaced in a second direction by the driving force of the second motor and is capable of supporting the fin body.

8. The air-conditioning blower according to claim 7, wherein: The fin support portion includes: a linear gear portion, in which teeth are arranged in a linear shape so that the fin support portion is linearly displaced in the second direction; and an arc gear portion, in which teeth are arranged in an arc shape so that the fin support portion is displaced in an arc shape in the second direction, and the linear gear portion and the arc gear portion are formed continuously.

9. The air-conditioning blower according to claim 4, wherein: The air-conditioning blower device further includes an air supply guide mechanism that is arranged to be displaceable toward the fin body and guides the direction of the air blown out from the blower outlet. The air supply guide mechanism includes a guide fin extending along the fin body and capable of being displaced toward the fin body.

10. The air-conditioning blower according to claim 9, wherein: The downstream end portion of the guide fin has a shape that follows the peripheral edge of the air outlet of the casing.

11. The air-conditioning blower according to claim 9, wherein: The air-conditioning blowing device further includes a second fin mechanism for displacing the fin body in a second direction. The second fin mechanism includes: a second motor that generates a driving force in a rotational direction when energized; and a fin support portion that is displaced in a second direction by the driving force of the second motor and is capable of supporting the fin body. The air supply guide mechanism includes the second motor as a driving source, and the guide fin is swung by the driving force of the second motor.

12. The air-conditioning blower according to claim 9, wherein: The air-conditioning blowing device further includes a second fin mechanism for displacing the fin body in a second direction. The second fin mechanism includes: a second motor that generates a driving force in a rotational direction when energized; and a fin support portion that is displaced in a second direction by the driving force of the second motor and is capable of supporting the fin body. The air supply guide mechanism includes: the second motor as a driving source; a driving gear that rotates by the driving of the second motor; and a driven gear that can rotate by the rotation of the driving gear. At least a portion of the driven gear has teeth formed only at a portion other than a portion corresponding to the linear gear portion, and does not include a structure for transmitting the driving force of the driving gear at a portion corresponding to the linear gear portion.

13. The air-conditioning blower according to claim 9, wherein: The guide fin is capable of abutting against the tapered portion.

14. The air-conditioning blower according to claim 9, wherein: The guide fins are displaceable to an angle parallel to the first direction.

15. The air-conditioning blower according to any one of claims 4 to 14, wherein: The fin body can switch between air supply and air stop. When the state of stopping the air blowing from the blower outlet is set to the air stop mode, the fin body is shifted toward the upstream side to block the flow path, thereby changing from the normal mode to the air stop mode.

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