JP2017132407A - Air blowout device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air blowout device for a vehicle, the device including a flap rotatably arranged in a ventilation flue but having a larger portion contributing to a wind direction adjustment.SOLUTION: An air blowout device 10 for a vehicle is provided, the device including: a casing 11 which surrounds a ventilation flue X guiding conditioned air and which blows out the conditioned air from an air outlet 11a at the end thereof; and a flap 12 which is rotatably arranged in the ventilation flue X and which adjusts the wind direction of the conditioned air. A plate-like part 123 of the flap 12 can rotate around a left shaft part 121 and a right shaft part 122 and the distance from the left shaft part 121 to the plate-like part 123 is greater than the distance from the right shaft part 122 to the plate-like part 123.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle air blowing device.

  2. Description of the Related Art Conventionally, there is known a vehicle air blowing device that integrates two types of air outlets, a defrost air outlet that blows air toward the windshield of a vehicle and a vehicle air outlet that blows air toward the vehicle interior. Yes. Specifically, the vehicle air blowing device blows out conditioned air from a single air outlet provided on the upper surface of the instrument panel, and changes the mode of the conditioned air so that a plurality of modes are provided. Execute.

  For example, a vehicle air blowing device described in Patent Literature 1 below includes a casing that surrounds a ventilation path that guides conditioned air from a vehicle air conditioner, and a flap (butterfly door) disposed in the ventilation path. Yes. The flap can change its posture by rotating about the axis. The vehicle air blowing device generates a flow velocity difference in the flow of the plurality of conditioned air by changing the flap posture, and changes the conditioned air wind direction in the vehicle front-rear direction using the flow velocity difference.

  Specifically, the vehicular air blowing device executes a defrost mode in which conditioned air is blown out to the windshield by directing the end of the flap toward the windshield. The vehicle air blowing device executes another mode other than the defrost mode by directing the end of the flap toward the Coanda wall provided on the vehicle rear side. The Coanda wall is curved to direct the conditioned air in the backward direction. By flowing the conditioned air along the Coanda wall, for example, a face mode for blowing the conditioned air to the face of the occupant can be executed.

JP, 2014-210564, A

  Generally, the upper surface of the instrumental panel of the vehicle is inclined so as to rise gently from both ends of the vehicle in the left-right direction to the center. For this reason, the part from which a height position differs arises in a blower outlet. In detail, the site | part near the center part of the vehicle left-right direction among the blower outlets is arrange | positioned in the position higher than the site | part near both ends.

  In order to flow the conditioned air along the Coanda wall with certainty, it is preferable to adjust the wind direction by a flap so that the conditioned air is directed toward the Coanda wall in a wide range in the left-right direction of the vehicle. If the flap axis arranged in the ventilation path is also inclined corresponding to the inclination of the air outlet as described above, the size of the flap is set so that the end of the rotating flap does not interfere with the wall surface of the ventilation path. May be restricted. As a result, there has been a problem that it is impossible to sufficiently secure the length of the flap that contributes to the adjustment of the direction of the conditioned air.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a vehicular air blowout capable of enlarging a portion that contributes to wind direction adjustment while being rotatably disposed in a wind passage through a flap. To provide an apparatus.

  In order to solve the above-described problems, a vehicle air blowing device according to the present invention surrounds a ventilation path that guides conditioned air, and is disposed rotatably in the ventilation path, with a casing that blows out conditioned air from an outlet at the end. And a flap for adjusting the direction of the conditioned air. The casing is connected to the air outlet and connected to the first side wall and the second side wall, and the end of the first side wall and the end of the second side wall are opposed to each other. A third sidewall portion and a fourth sidewall portion. The downstream end of the first side wall portion is disposed downstream of the downstream end of the second side wall portion in the flow direction of the conditioned air in the ventilation path. A Coanda wall is formed at the downstream end of the fourth side wall so as to curve the conditioned air in a direction from the third side wall toward the fourth side wall. The flap has a first shaft portion pivotally supported by the first side wall portion, a second shaft portion pivotally supported by the second side wall portion, and the first shaft portion and the second shaft portion. A plate-like portion to be fixed. The plate-like portion is rotatable about the first shaft portion and the second shaft portion, and the distance from the first shaft portion to the plate-like portion is the plate-like shape from the second shaft portion. It is larger than the distance to the part.

  According to the above configuration, if the wind direction of the conditioned air is adjusted by the flap so as to follow the Coanda wall, a flow velocity difference of the conditioned air is formed around the Coanda wall, and the conditioned air blown out from the outlet is third. The direction can be directed from the side wall portion toward the fourth side wall portion. Moreover, if the wind direction is adjusted by the flap so as to reduce the flow rate of the conditioned air along the Coanda wall, the conditioned air flowing through the ventilation path can be blown out from the outlet while maintaining the flow direction.

  Furthermore, in the said structure, the distance from the 1st axial part of a flap to a plate-shaped part is larger than the distance from a 2nd axial part to a plate-shaped part. For this reason, even when the downstream end of the first side wall portion is arranged on the downstream side of the downstream end of the second side wall portion in the flow direction of the conditioned air in the ventilation path, the plate-like portion is arranged according to the shape thereof. While being arranged, the orbit of the end of the plate-like portion during rotation can be made different between the first side wall portion side and the second side wall portion side. Thereby, it is possible to enlarge the portion that contributes to the wind direction adjustment while rotatably arranging the flap in the air passage.

  ADVANTAGE OF THE INVENTION According to this invention, the air blowing apparatus for vehicles which can enlarge the part which contributes to wind direction adjustment can be provided, arrange | positioning so that a flap can be rotated in a wind path.

It is a mimetic diagram showing composition of an air blowing device for vehicles concerning an embodiment. It is a schematic diagram which shows the vehicle air conditioner of FIG. It is a perspective view which shows the casing of FIG. It is a perspective view which shows the flap of FIG. It is a top view explaining the operation | movement in the defrost mode of the air blowing apparatus for vehicles of FIG. It is a schematic diagram which shows the VI-VI cross section of FIG. It is a schematic diagram which shows the VII-VII cross section of FIG. It is a top view explaining the operation | movement in the face mode of the air blowing apparatus for vehicles of FIG. It is a schematic diagram which shows the IX-IX cross section of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  The configuration of the vehicle air blowing device 10 according to the embodiment will be described with reference to FIGS. 1 to 4. The vehicle air blowing device 10 is a device that is mounted on a vehicle and blows out conditioned air from the air conditioning case 21 of the vehicle air conditioning device 20 through the air outlet 11a. The blower outlet 11a is arrange | positioned in the site | part near the right end among the instrument panels 1 of a vehicle, and is exhibiting the shape elongated in the left-right direction. In addition, the left-right direction length of the blower outlet 11a and the arrangement location in the upper surface 1a can be changed arbitrarily. A configuration similar to that of the vehicle air blowing device 10 according to the present embodiment is also generally referred to as a “hybrid differential device”.

  In this specification, the direction in which the vehicle moves forward is referred to as “front”, and the direction in which the vehicle moves backward is referred to as “rear”. Further, the left direction when the vehicle faces in the forward direction is referred to as “left”, and the right direction is referred to as “right”. Further, the description will be made by referring to the vertically upward direction as “up” and the vertically downward direction as “down”.

  The vehicle air conditioner 20 is arranged inside the instrument panel 1 of the vehicle shown in FIG. The instrument panel 1 is disposed on the front side of the front seat in the passenger compartment, and the upper surface 1a is inclined so as to rise gently from both ends in the left-right direction to the center. The vehicle air conditioner 20 has an air conditioning case 21 that forms an outer shell. The air conditioning case 21 forms an air passage that guides air into the passenger compartment. An air intake port 22 and an external air intake port 23 are formed at the most upstream part of the air flow of the air conditioning case 21. The inside air suction port 22 is an opening for sucking air in the vehicle interior. The outside air inlet 23 is an opening for sucking air outside the passenger compartment.

  An inlet opening / closing door 24 is provided in the vicinity of the inside air inlet 22 and the outside air inlet 23. By operating the inlet opening / closing door 24 so as to open one or both of the inside air inlet 22 and the outside air inlet 23, one or both of the air inside the vehicle compartment and the air outside the vehicle compartment are sucked into the air conditioning case 21. The The operation of the suction opening / closing door 24 is controlled by a control signal output from a control device (not shown). On the downstream side of the suction opening / closing door 24, a blower 25 that sucks and blows air is disposed.

  An evaporator 26 that cools the air blown out by the blower 25 is disposed on the downstream side of the blower 25. The evaporator 26 is a heat exchanger that exchanges heat between the refrigerant flowing in the evaporator 26 and air. The evaporator 26 constitutes a vapor compression refrigeration cycle together with a compressor, a condenser, an expansion valve and the like (not shown).

  A heater core 27 is disposed on the downstream side of the evaporator 26. The heater core 27 is a heat exchanger that heats the air cooled by the evaporator 26. The heater core 27 of the present embodiment heats air using a cooling water of an engine (not shown) of the vehicle as a heat source. Further, on the downstream side of the evaporator 26, a cold air bypass passage 28 is formed in which the air that has passed through the evaporator 26 flows around the heater core 27.

  Here, the temperature of the air mixed on the downstream side of the heater core 27 and the cold air bypass passage 28 varies depending on the ratio of the flow rate of the air passing through the heater core 27 and the air passing through the cold air bypass passage 28.

  For this reason, an air mix door 29 is arranged on the downstream side of the evaporator 26 and on the inlet side of the heater core 27 and the cold air bypass passage 28. The air mix door 29 continuously changes the ratio of the flow rate of air flowing into the heater core 27 and the cold air bypass passage 28. The air mix door 29 adjusts the temperature of the air together with the evaporator 26 and the heater core 27. In this specification, the flow of air whose temperature has been adjusted in this way is referred to as “air conditioned air”. The operation of the air mix door 29 is controlled by a control signal output from the control device.

  A defrost / face opening 30 and a foot opening 31 are provided on the downstream side of the heater core 27 and the cold air bypass passage 28. The defrost / face opening 30 communicates with the air outlet 11 a provided on the upper surface 1 a of the instrument panel 1 via the vehicle air blowing device 10. The foot opening 31 communicates with the foot outlet 33 via the foot duct 32.

  A defrost / face door 34 is disposed upstream of the defrost / face opening 30. The defrost / face door 34 opens and closes the defrost / face opening 30. A foot door 35 is disposed on the upstream side of the foot opening 31. The foot door 35 opens and closes the foot opening 31. The defrost / face door 34 and the foot door 35 switch the blowing state of the conditioned air so that the conditioned air is blown from one or both of the defrost / face opening 30 and the foot opening 31 by opening and closing operations thereof.

  The vehicle air blowing device 10 is disposed in the instrument panel 1. The vehicle air blowing device 10 communicates with the defrost / face opening 30 and functions to guide the conditioned air emitted from the defrost / face opening 30 into the vehicle interior.

  Next, the configuration of the vehicle air blowing device 10 will be described. The vehicle air blowing device 10 includes a casing 11, a flap 12, and a plurality of louvers 13.

  The casing 11 is a member disposed between the vehicle air conditioner 20 and the instrument panel 1. As shown in FIG. 3, the casing 11 has a left side wall part 11 d and a right side wall part 11 e. The left side wall portion 11d and the right side wall portion 11e are both connected to the air outlet 11a and are opposed to each other with a space therebetween. In order to correspond to the inclination of the upper surface 1a of the instrument panel 1 described above, the downstream end 11d1 of the left side wall portion 11d is disposed above the downstream end 11e1 of the right side wall portion 11e. The left side wall portion 11d and the right side wall portion 11e correspond to an example of a first side wall portion and a second side wall portion that are connected to the air outlet and are arranged to face each other.

  Moreover, the casing 11 has the front side wall part 11b and the rear side wall part 11c. The front side wall part 11b is provided so as to connect the front side end part of the left side wall part 11d and the front side end part of the right side wall part 11e. The rear side wall part 11c is provided so as to connect the rear side end part of the left side wall part 11d and the rear side end part of the right side wall part 11e. The left side wall part 11d and the right side wall part 11e correspond to an example of a third side wall part and a fourth side wall part that connect the end part of the first side wall part and the end part of the second side wall part and are arranged to face each other. .

  The casing 11 surrounds the ventilation path X by the front side wall part 11b, the rear side wall part 11c, the left side wall part 11d, and the right side wall part 11e. The ventilation path X is a flow path through which the conditioned air that has exited from the defrost / face opening 30 flows from the inlet X1 and flows out from the outlet X2. The lower end of the casing 11 is connected to the defrost / face opening 30 described above. Moreover, the upper end of the casing 11 is the blower outlet 11a.

  A rear Coanda wall 11c1 is provided at the downstream end of the rear side wall portion 11c. The rear Coanda wall 11c1 is a wall body that extends while curving in the rear direction. As shown in FIG. 1, the rear Coanda wall 11c1 is a wall body that curves so as to expand the ventilation path X in the rearward direction from the inlet X1 side to the outlet X2 side.

  The blower outlet 11a is an opening that blows out conditioned air guided by the casing 11 in the two blowout modes of the defrost mode and the face mode. Here, the defrost mode is a mode in which conditioned air is blown toward the windshield 2 shown in FIG. 1 and is executed for the purpose of preventing the windshield 2 from being fogged. The face mode is a mode in which conditioned air is blown toward the upper body of the passenger in the vehicle interior. The face mode corresponds to an example of another mode other than the defrost mode.

  The flap 12 is a member that is disposed in the ventilation path X and adjusts the direction of the conditioned air. As shown in FIG. 4, the flap 12 includes a left shaft portion 121, a right shaft portion 122, a plate-like portion 123, and a connecting portion 124. The left shaft portion 121, the right shaft portion 122, the plate-like portion 123, and the connecting portion 124 are integrally formed.

  The left shaft portion 121 and the right shaft portion 122 are portions provided at the left and right ends of the flap 12, respectively. Each of the left shaft portion 121 and the right shaft portion 122 has a cylindrical shape with the axis L as the central axis, and is formed to protrude in the left-right direction.

  The plate-like portion 123 is a portion having a thin plate shape extending in the left-right direction. The plate-like portion 123 has a left end portion fixed to the left shaft portion 121 and a right end portion fixed to the right shaft portion 122. Specifically, the left end portion of the plate-like portion 123 is connected to the left shaft portion 121 via the connecting portion 124, whereas the right end portion of the plate-like portion 123 is directly connected to the right shaft portion 122. Yes. The plate-like portion 123 is curved so as to protrude in a direction away from the left shaft portion 121 and the right shaft portion 122 (upward in FIG. 4).

  The connecting portion 124 is a portion provided at the right end of the left shaft portion 121. The connecting portion 124 has a cylindrical shape with an axis substantially orthogonal to the axis L as a central axis, and is formed so as to protrude from the right end of the left shaft portion 121. By providing the connecting portion 124, the distance from the left shaft portion 121 to the plate-like portion 123 is larger than the distance from the right shaft portion 122 to the plate-like portion 123.

  The flap 12 formed in this manner has its left shaft 121 supported on the left wall 11d of the casing 11 and its right shaft 122 supported on the right wall 11e of the casing 11. That is, the left shaft portion 121 corresponds to an example of a first shaft portion that is pivotally supported by the first side wall portion, and the right shaft portion 122 corresponds to an example of a second shaft portion that is pivotally supported by the second side wall portion. To do. Thus, the flap 12 can rotate and swing around the left shaft portion 121 and the right shaft portion 122 (in other words, around the axis L). The flap 12 can change its posture in the ventilation path X in the casing 11 by the swing.

  When the posture of the flap 12 changes, the direction of the conditioned air flowing through the ventilation path X changes accordingly. As the conditioned air flows along the plate-like portion 123 of the flap 12, the wind direction changes. That is, the plate-like portion 123 is a portion that substantially contributes to the adjustment of the direction of the conditioned air in the flap 12. Therefore, the flap 12 is required to sufficiently secure the size of the plate-like portion 123 while being able to rotate in the ventilation path X.

  Further, when the flap 12 rotates, the left and right end portions of the plate-like portion 123 move along different tracks. That is, the end on the left wall 11d side of the plate-like portion 123 moves so as to draw a large arc centering on the axis L, whereas the end on the right wall 11e side of the plate-like portion 123 is , Move so as to draw a small arc centered on the axis L.

  The plurality of louvers 13 are members that adjust the direction of the conditioned air by the rectifying effect. The plurality of louvers 13 are arranged in the ventilation path X so as to line up from the left side wall part 11d toward the right side wall part 11e. Each louver 13 has a flat plate shape with a flat surface.

  As shown in FIG. 1, shafts 131 are formed at both ends of each louver 13 in the front-rear direction. The shaft 131 has a cylindrical shape and is formed to extend along the front-rear direction. The front side of the shaft 131 is pivotally supported by the front side wall portion 11b, and the rear side of the shaft 131 is pivotally supported by the rear side wall portion 11c. Thereby, each louver 13 can rotate and swing about the shaft 131.

  The drive mechanism 14 is an actuator that drives the flap 12 and the plurality of louvers 13, and includes, for example, an electric motor. The drive mechanism 14 switches the defrost mode and the face mode by driving the flaps 12 and the like to change their postures.

  Next, the operation of the vehicle air blowing device 10 in the defrost mode will be described with reference to FIGS. 5 to 7, illustration of the drive mechanism 14 is omitted.

  The drive mechanism 14 drives the flap 12, and arrange | positions so that a plate-shaped part may follow a perpendicular direction, as FIG. 6 shows. At this time, in the ventilation path X, both the portion partitioned on the front side of the flap 12 and the portion partitioned on the rear side of the flap 12 have a flow path cross-sectional area from the lower end to the upper end of the flap 12. Almost no change. Further, the gap C1 formed between the upper end of the flap 12 and the rear Coanda wall 11c1 is relatively large. Accordingly, the conditioned air flowing from the inlet X1 and flowing upward in the ventilation path X flows with almost no change in the wind direction in the front-rear direction and reaches the outlet X2.

  At this time, the connecting portion 124 of the flap 12 is arranged as shown in FIG. That is, the columnar connecting portion 124 is disposed such that its axial direction intersects the flow direction (that is, the vertical direction) of the conditioned air in the ventilation path X. The conditioned air changes the air direction along the outer surface of the connecting portion 124 and flows so as to bypass the connecting portion 124.

  Thus, in the defrost mode, the conditioned air is blown upward from the air outlet 11a. As a result, the conditioned air blown out from the air outlet 11a disposed at the portion near the right end of the instrument panel 1 is supplied to the windshield 2 to be anti-fogged. At the same time, the direction of the conditioned air can be changed in the left-right direction by appropriately driving each louver 13 by the drive mechanism 14. Thereby, the conditioned air diffused in the left-right direction can be supplied, and the defogging can be performed over a wide range of the windshield 2.

  Next, the operation of the vehicle air blowing device 10 in the face mode will be described with reference to FIGS. 8 and 9. In FIGS. 8 and 9, the drive mechanism 14 is not shown.

  The drive mechanism 14 drives the flap 12, and arrange | positions so that the upper end of the flap 12 may approach the rear side wall part 11c, as FIG. 9 shows. Thereby, the flap 12 is arrange | positioned so that it may incline back from the lower end to an upper end. At this time, in the portion of the ventilation path X that is partitioned to the rear side of the flap 12, the flow path cross-sectional area gradually decreases from the lower end to the upper end of the flap 12, and between the upper end of the flap 12 and the rear side wall portion 11c. The gap C <b> 2 formed in is relatively small. That is, the size of the gap C2 is smaller than the gap C1 described above (see FIG. 6). For this reason, the flow velocity of the conditioned air passing through the gap C2 is increased.

  The conditioned air flowing at high speed flows along the curve of the rear Coanda wall 11c1 due to the Coanda effect. As a result, the high-speed conditioned air has a large wind direction and changes backward as indicated by an arrow F1. On the other hand, the low-speed conditioned air that has passed through the portion other than the gap C2 is attracted by the high-speed conditioned air indicated by the arrow F1, as indicated by the arrow S1. As a result, the direction of the low-speed conditioned air also changes backward.

  Thus, in the face mode, the conditioned air is blown backward from the outlet 11a. As a result, the conditioned air blown from the air outlet 11a disposed at the portion near the right end of the instrument panel 1 is supplied to the portion near the rear end in the vehicle interior. At the same time, the direction of the conditioned air can be changed in the left-right direction by appropriately driving each louver 13 by the drive mechanism 14. Thereby, the conditioned air blown out from the air outlet 11a can be diffused in the left-right direction, and the conditioned air can be supplied to a wide range in the passenger compartment.

  The drive mechanism 14 thus switches the defrost mode and the face mode by rotating the flap 12 in the ventilation path X and changing its posture as appropriate. As described above, the end portion on the left wall 11d side of the plate-like portion 123 is connected to the left shaft portion 121 via the connecting portion 124, and the connecting portion 124 is an axis substantially orthogonal to the left shaft portion 121. It has a cylindrical shape with a central axis. For this reason, when the flap 12 rotates, the end of the plate-like portion 123 on the left side wall 11d side moves without interfering with the left side wall 11d while maintaining a substantially constant distance from the left side wall 11d. can do.

  As described above, according to the vehicle air blowing device 10 according to the embodiment, if the wind direction of the conditioned air is adjusted by the flap 12 so as to follow the rear Coanda wall 11c1, the rear Coanda wall 11c1 A difference in flow velocity of the conditioned air is formed in the periphery, and the conditioned air blown from the air outlet 11a can be directed backward. Further, if the wind direction is adjusted by the flap 12 so as to reduce the flow speed of the conditioned air along the rear Coanda wall 11c1, the conditioned air flowing through the ventilation path X is blown out from the outlet 11a while maintaining the flow direction. be able to.

  Furthermore, in the above configuration, the distance from the left shaft portion 121 of the flap 12 to the plate-like portion 123 is larger than the distance from the right shaft portion 122 to the plate-like portion 123. For this reason, even if the downstream end 11d1 of the left side wall portion 11d is arranged on the downstream side of the downstream end 11e1 of the right side wall portion 11e in the flow direction of the conditioned air in the ventilation path X, the plate depends on the shape. It is possible to make the trajectory of the end of the plate-like portion 123 during rotation different between the left-side wall portion 11d side and the right-side wall portion 11e while arranging the like-like portion 123. Thereby, it is possible to increase the portion that contributes to the wind direction adjustment while the flap 12 is rotatably disposed in the air passage X.

  Further, the flap 12 has a connecting portion 124 that extends in a direction intersecting with the axial direction of the left shaft portion 121. The connecting part 124 connects the end part on the left wall part 11 d side of the plate-like part 123 and the left shaft part 121. Thereby, the distance from the left axis part 121 of the flap 12 to the plate-like part 123 can be made larger than the distance from the right axis part 122 to the plate-like part 123. As a result, it is possible to further increase the portion contributing to the wind direction adjustment while simplifying the configuration and arranging the flap 12 to be able to rotate in the air passage X.

  Further, the connecting portion 124 of the flap 12 extends in a direction substantially orthogonal to the left shaft portion 121. Thereby, the connection part 124 can be connected with the site | part nearer to the left side wall part 11d among the edge parts by the side of the left side wall part 11d of the plate-shaped part 123. FIG. As a result, it is possible to further increase the portion that contributes to the wind direction adjustment.

  Moreover, the connection part 124 is exhibiting the column shape. Thereby, the conditioned air in the ventilation path X can flow smoothly along the outer surface of the connecting portion 124. As a result, it is possible to suppress a situation in which the flow of the conditioned air is disturbed by the connecting portion 124 and the conditioned air blown out from the air outlet 11a is hindered.

  Further, the plate-like portion 123 is curved so as to protrude in a direction away from the left shaft portion 121 and the right shaft portion 122. Thereby, when adjusting the wind direction of the conditioned air, the conditioned air can flow smoothly along the curved surface of the plate-like portion 123. As a result, it is possible to suppress a situation in which the flow of the conditioned air is disturbed by the plate-like portion 123 and the conditioned air blown out from the air outlet 11a is hindered.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. Each element provided in each of the specific examples described above and its arrangement, material, condition, shape, size, and the like are not limited to those illustrated, but can be changed as appropriate.

DESCRIPTION OF SYMBOLS 10: Air blowing apparatus 11 for vehicles: Casing 11a Outlet 11b: Front side wall part 11c: Rear side wall part 11c1: Rear side Coanda wall 11d: Left side wall part 11d1: Downstream end 11e: Right side wall part 11e1: Downstream end 12: Flap 121: Left shaft portion (first shaft portion)
122: Right shaft part (second shaft part)
123: Plate-shaped part 124: Connection part X: Ventilation path

Claims (5)

An air blowing device (10) for a vehicle,
A casing (11) that surrounds the ventilation path (X) for guiding the conditioned air and blows out the conditioned air from the outlet (11a) at the end;
A flap (12) that is rotatably arranged in the ventilation path and adjusts the direction of the conditioned air;
The casing is connected to the outlet and is opposed to the first side wall (11d) and the second side wall (11e), an end of the first side wall, and an end of the second side wall. A third side wall part (11b) and a fourth side wall part (11c) which are arranged opposite to each other,
The downstream end (11d1) of the first side wall portion is disposed downstream of the downstream end (11e1) of the second side wall portion in the flow direction of the conditioned air in the ventilation path.
A Coanda wall (11c1) is formed at the downstream end of the fourth side wall so as to curve the conditioned air in a direction from the third side wall to the fourth side wall.
The flap includes a first shaft portion (121) pivotally supported by the first side wall portion, a second shaft portion (122) pivotally supported by the second side wall portion, the first shaft portion and the first shaft portion. A plate-like part (123) fixed to the biaxial part,
The plate-like portion is rotatable about the first shaft portion and the second shaft portion, and the distance from the first shaft portion to the plate-like portion is the plate-like shape from the second shaft portion. The air blowing device for vehicles which is larger than the distance to the part. The flap has a connecting portion (124) extending in a direction intersecting the axial direction of the first shaft portion,
The vehicle air blowing device according to claim 1, wherein the connecting portion connects an end portion of the plate-like portion on the first side wall portion side and the first shaft portion.   The vehicle air blowing device according to claim 2, wherein the connecting portion extends in a direction substantially orthogonal to the first shaft portion.   The vehicular air blowing device according to claim 3, wherein the connecting portion has a cylindrical shape.   The vehicular air blowing device according to claim 4, wherein the plate-like portion is curved so as to protrude in a direction away from the first shaft portion and the second shaft portion.

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