JPWO2017081965A1 - Air blowing device - Google Patents

Abstract

An air blowing device is provided that can suppress airflow from an air outlet from sticking to a vehicle front window when air is blown out from the air outlet toward the rear of the vehicle. An air blowing device includes a blower outlet (11) provided in an upper surface portion (1a) of an instrument panel of a vehicle, and a flow passage forming member that forms an air flow passage connected to an upstream side of the air flow of the blower outlet. (12) and an airflow deflecting member (13). The flow path forming member has a front wall (122) and a rear wall (121). The airflow deflecting member passes through the first flow path by making the width of the first flow path (12a) in the vehicle front-rear direction smaller than the width of the second flow path (12b) in the vehicle front-rear direction. The airflow is set to be faster than the second airflow that has passed through the second flow path. A part of the rear wall on the outlet side constitutes a guide wall (14) for guiding the first airflow. The guide wall extends from the bottom to the top while bending toward the vehicle rear side. The airflow deflecting member has at least a plate-shaped portion. The front surface (132) of the plate-shaped portion extends from the bottom to the top while bending toward the vehicle rear side.

Description

Cross-reference to related applications

  This application is based on Japanese Patent Application No. 2015-222447 filed on November 12, 2015, the description of which is incorporated herein by reference.

  The present disclosure relates to an air blowing device that blows out air.

Patent Literature 1 discloses an air blowing device that blows air from a blowout port while bending the air along a guide wall using the Coanda effect. Specifically, this air blowing device
An air outlet that blows air into the target space, a flow path forming member that internally forms an air flow path that is connected to the upstream side of the air flow of the air outlet, and an airflow deflecting member that generates two airflows having different flow velocities in the air flow path With.

  The flow path forming member has a first wall and a second wall facing the first wall. The air flow path has a first flow path between the air flow deflecting member and the first wall, and a second flow path between the air flow deflecting member and the second wall. The airflow deflecting member makes the width of the first flow path smaller than the width of the second flow path. Thereby, the 1st airflow which passed the 1st flow path is made faster than the 2nd airflow which passed the 2nd flow path. A part of the first wall on the air outlet side constitutes a guide wall that guides the first airflow. The guide wall extends toward the air outlet while bending from the second wall toward the first wall.

  In this air blowing device, the first airflow flows along the guide wall due to the Coanda effect. For this reason, the 1st air current is bent. Furthermore, the second air current is drawn into the high-speed first air current. For this reason, the second air stream is bent. For this reason, according to this air blowing apparatus, the air which flows through an air flow path can be bent in the direction which goes to a 1st wall from a 2nd wall, and can be blown out from a blower outlet.

JP, 2014-210564, A

  However, as a result of detailed studies by the inventors, it has been found that the above-described conventional air blowing device has the following problems. That is, when an air outlet is installed on the upper surface of the instrument panel, the airflow from the air outlet sticks to the vehicle front window even if air is blown from the air outlet toward the rear of the vehicle. This problem becomes more prominent as the position of the air outlet is closer to the front of the vehicle.

  An object of the present disclosure is to provide an air blowing device capable of suppressing airflow from a blowout port from sticking to a vehicle front window when air is blown out from the blowout port toward the rear of the vehicle.

According to the present disclosure, the air blowing device is
An air outlet that is provided on the upper surface of the instrument panel of the vehicle and blows out air;
A flow path forming member that forms an air flow path connected to the air flow upstream side of the air outlet;
An airflow deflecting member disposed in the air flow path and generating two airflows having different flow velocities in the air flow path;
The flow path forming member has a front wall on the front side of the vehicle, a rear wall located on the vehicle rear side of the front wall and facing the front wall,
The air flow path has a first flow path between the air flow deflecting member and the rear wall, and a second flow path between the air flow deflecting member and the front wall,
The airflow deflecting member reduces the width of the first flow path in the vehicle front-rear direction to be smaller than the width of the second flow path in the vehicle front-rear direction, thereby causing the first airflow that has passed through the first flow path to It is faster than the second airflow that has passed through the road,
A part on the outlet side of the rear wall constitutes a guide wall for guiding the first airflow,
The guide wall extends from the bottom to the top while turning to the rear side of the vehicle,
The airflow deflecting member has at least a plate-shaped portion,
The plate-shaped portion has a front surface that is a front surface of the vehicle and a rear surface that is a rear surface of the vehicle,
The front surface of the plate-shaped portion extends from the bottom to the top while bending toward the vehicle rear side.

  According to this, the first airflow flows along the guide wall by the Coanda effect. Thereby, a 1st airflow can be bent to the vehicle rear side. The second airflow is attracted to the high-speed first airflow by the ejector effect. Thereby, a 2nd airflow can be bent to the vehicle rear side. Further, the second airflow flows along the front surface of the airflow deflecting member due to the Coanda effect. Thereby, a 2nd airflow can be bent by the vehicle rear side.

  As a result, the airflow flowing through the air flow path can be greatly bent toward the vehicle rear side. Therefore, when air is blown out from the outlet toward the rear of the vehicle, it is possible to suppress the airflow from sticking to the vehicle front window.

It is sectional drawing which shows the vehicle mounting state of the air blowing apparatus in 1st Embodiment. It is a top view which shows arrangement | positioning of the blower outlet in FIG. 1 in a vehicle interior. It is sectional drawing of the airflow deflection | deviation member in FIG. It is sectional drawing of the air blowing apparatus in FIG. It is sectional drawing of the guide wall in FIG. It is sectional drawing of the air blowing apparatus of 1st Embodiment at the time of face mode. It is sectional drawing of the air blowing apparatus of 1st Embodiment at the time of a defroster mode. It is sectional drawing of the air blowing apparatus in 2nd Embodiment. It is sectional drawing of the air blowing apparatus of 2nd Embodiment at the time of face mode. It is sectional drawing of the air blowing apparatus in 3rd Embodiment. It is sectional drawing of the air blowing apparatus in 4th Embodiment. It is sectional drawing of the air blowing apparatus in 5th Embodiment. It is sectional drawing of the air blowing apparatus in 6th Embodiment. It is sectional drawing of the air blowing apparatus of 6th Embodiment at the time of face mode. It is sectional drawing of the air blowing apparatus in 7th Embodiment. It is sectional drawing of the air blowing apparatus in 8th Embodiment. It is sectional drawing of the air blowing apparatus in 9th Embodiment. It is sectional drawing of the air blowing apparatus in other embodiment. It is sectional drawing of the air blowing apparatus in other embodiment. It is sectional drawing of the air blowing apparatus in other embodiment. It is sectional drawing of the protrusion part in other embodiment. It is sectional drawing of the protrusion part in other embodiment. It is sectional drawing of the protrusion part in other embodiment.

  Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following embodiments, parts that are the same or equivalent to each other will be described with the same reference numerals. Moreover, the arrow which shows up, down, front, back, left, right etc. in each figure has shown each direction in a vehicle mounting state.

(First embodiment)
As shown in FIG. 1, the air blowing device 10 includes a blowout port 11, a duct 12, and an airflow deflecting member 13.

  The blower outlet 11 blows air into the vehicle interior space. The air outlet 11 is provided on the upper surface portion 1 a of the instrument panel 1. More specifically, the blower outlet 11 is located in the windshield 2 side among the upper surface parts 1a. In other words, the blower outlet 11 is located in the range which overlaps with the windshield 2 among the upper surface parts 1a, when the windshield 2 is projected in parallel with the up-down direction with respect to the upper surface part 1a.

  The instrument panel 1 has an upper surface portion 1a and a front portion (not shown). The instrument panel 1 is an instrument panel provided in front of the passenger compartment. The instrument panel 1 refers to the entire panel located in front of the front seat in the passenger compartment, including not only the part where the instruments are arranged, but also the part that houses the audio and the air conditioner.

  As shown in FIG. 2, the air outlets 11 are arranged at two locations, that is, the front face of the driver seat 4 a and the front face of the passenger seat 4 b of the right-hand drive vehicle. Below, although the blower outlet 11 of the front of the driver's seat 4a is demonstrated, the blower outlet 11 arrange | positioned in front of the passenger seat 4b is the same as the blower outlet 11 of the front of the driver's seat 4a.

  The blower outlet 11 is elongated in the left-right direction. The longitudinal direction of the opening shape of the blower outlet 11 is along the left-right direction. The length of the air outlet 11 in the left-right direction is longer than the length of the seat 4 in the left-right direction. In addition, the length of the left-right direction of the blower outlet 11 may be equal to or shorter than the length of the seat 4 in the left-right direction.

  The blower outlet 11 has opening edge parts 11a, 11b, 11c, and 11d. The opening edge portions 11a to 11d are composed of a pair of long sides 11a and 11b and a pair of short sides 11c and 11d.

  The air outlet 11 is switched to at least one of the defroster mode and the face mode by the air flow deflecting member 13 shown in FIG. 1 and blows out the temperature-adjusted air into the vehicle interior space. Here, the defroster mode is a blowing mode in which air is blown toward the windshield 2. This clears the windows from cloudiness. The face mode is a blowing mode in which air is blown out toward the upper body of the front seat occupant 5.

  As shown in FIG. 1, the air outlet 11 is configured by an opening formed at the end of the duct 12. In other words, the duct 12 is connected to the air outlet 11. The duct 12 connects the air outlet 11 and the air conditioning unit 20. The air conditioning unit 20 is disposed inside the instrument panel 1. The air conditioning unit 20 adjusts the temperature of the blown air toward the vehicle interior.

  The duct 12 is a flow path forming member that forms therein an air flow path that is continuous with the air flow upstream side of the air outlet 11. The duct 12 forms an air flow path through which air blown from the air conditioning unit 20 flows. The duct 12 is made of resin and is configured separately from the air conditioning unit 20. The duct 12 may be formed integrally with the air conditioning unit 20.

  The duct 12 has a rear wall 121 located on the rear side and a front wall 122 located on the front side. The rear wall 121 and the front wall 122 are opposed to each other in the front-rear direction. The air flow path inside the duct 12 has a first flow path 12a and a second flow path 12b. The first flow path 12 a is formed between the airflow deflecting member 13 and the rear wall 121. The second flow path 12 b is formed between the airflow deflecting member 13 and the front wall 122.

  The airflow deflecting member 13 is disposed in the air flow path inside the duct 12. The airflow deflecting member 13 generates two airflows having different flow velocities in the duct 12. The airflow deflecting member 13 varies the velocity of the airflow that has passed through the first flow path 12a and the airflow that has passed through the second flow path 12b.

  The airflow deflecting member 13 has a rear surface 131 which is a rear surface and a front surface 132 which is a front surface. The rear surface 131 extends from the bottom to the top while bending backward. In the present embodiment, as shown in FIG. 3, the rear surface 131 includes a curved surface having a predetermined radius of curvature R1. The front surface 132 extends from the bottom to the top while bending backward. In the present embodiment, as shown in FIG. 3, the front surface 132 includes a curved surface having a predetermined radius of curvature R2.

  As shown in FIG. 4, in this embodiment, a cantilever door is adopted as the airflow deflecting member 13. The airflow deflecting member 13 includes a door main body 13a and a rotation shaft 13b provided on the door main body 13a. The rotating shaft 13b is arranged in parallel in the left-right direction. For this reason, the airflow deflecting member 13 rotates in the front-rear direction around the rotation shaft 13b.

  The door main body 13a is a plate-shaped part. The door body 13 a has a rear surface 131 and a front surface 132. The front surface 132 has a curved surface shape that extends from the bottom to the top while bending backward, over the entire area from the air flow downstream end 134 of the door main body 13a to the air flow upstream end 133 of the door main body 13a. Yes.

  The rotating shaft 13b is located at the end of the door body 13a on the downstream side of the air flow. That is, the rotary shaft 13b is located at a position closer to the downstream end 134 than the center position 135 that is equidistant from both the air flow upstream end 133 and the air flow downstream end 134 of the door body 13a. For this reason, as for the rotating shaft 13b, the distance from the air flow downstream end 134 of the door main-body part 13a to the rotating shaft 13b becomes shorter than the distance from the air-flow upstream end 133 of the door main-body part 13a to the rotating shaft 13b. ing.

  In addition, the position of the rotating shaft 13b is not restricted to the position shown in FIG. The position of the rotating shaft 13b may be a position between the center position 135 and the downstream end 134 in the door main body 13a. That is, the position of the rotary shaft 13b is set such that the position of the rotary shaft 13b from the downstream end 134 of the door body 13a to the rotary shaft 13b is greater than the distance from the upstream end 133 of the door main body 13a to the rotary shaft 13b. Any position may be used as long as the distance to is shorter. When the rotary shaft 13b is located at the air flow downstream end 134 of the door main body 13a, the distance from the air flow downstream end 134 of the door main body 13a to the rotary shaft 13b is zero.

  The airflow deflecting member 13 is disposed on the air outlet 11 side of the duct 12. That is, the downstream end 134 of the airflow deflecting member 13 is positioned above the intermediate position P3 in the vertical direction between the position P1 at which bending starts to the rear side and the position P2 at the bending end of the guide wall 14 described later. . In the present embodiment, the bending end position P <b> 2 is the position of the opening edge 11 a of the air outlet 11.

  The airflow deflecting member 13 is disposed at a position where the width in the front-rear direction of the first flow path 12a is smaller than the width in the front-rear direction of the second flow path 12b. Specifically, the distance in the front-rear direction between the downstream end 134 of the airflow deflection member 13 and the rear wall 121 is greater than the distance in the front-rear direction between the downstream end 134 of the airflow deflection member 13 and the front wall 122. The airflow deflecting member 13 is arranged at a position where the airflow is reduced.

  Further, as shown in FIG. 1, a part of the rear wall 121 on the outlet 11 side has a guide wall 14 for guiding a first air flow F1 described later. The guide wall 14 is continuous with the upper surface portion 1 a of the instrument panel 1. The guide wall 14 guides the first air flow F1 by bending the first air flow F1 along the wall surface by the Coanda effect.

  The wall surface of the guide wall 14 extends from the bottom to the top while bending backward. In other words, the wall of the guide wall 14 is bent so that the distance between the front wall 122 and the rear wall 121 widens toward the downstream side of the air flow.

  In the present embodiment, the wall surface of the guide wall 14 is curved so as to be convex toward the front of the vehicle. As shown in FIG. 5, the wall surface of the guide wall 14 has a curved surface shape having a predetermined radius of curvature R3. The curvature radius R3 of the guide wall 14 is larger than the curvature radius R2 of the front surface 132 of the airflow deflecting member 13.

  As shown in FIG. 4, the duct 12 has a protruding portion 15 that protrudes rearward from the front wall 122. The protrusion 15 is provided in a portion of the front wall 122 on the downstream side of the air flow with respect to the air flow upstream end 133 of the airflow deflecting member 13. In the present embodiment, the protrusion 15 is provided at the end of the front wall 122 on the downstream side of the air flow.

  The upper surface 151 of the protrusion 15 is continuous with the surface of the upper surface 1 a of the instrument panel 1. The lower surface 152 of the protruding portion 15 is a flat surface that extends straight obliquely backward from the bottom to the top. The protrusion 15 is not limited to being formed as a part of the front wall 122. The protrusion 15 may be formed as a separate body from the front wall 122.

  In the air blowing device 10 of the present embodiment, the air blowing direction from the air outlet 11 is switched as the air flow deflecting member 13 rotates.

  When the blowing mode is the face mode, the position of the airflow deflecting member 13 is the position shown in FIG. That is, the position of the upstream end 133 of the airflow deflecting member 13 is an intermediate position between the rear wall 121 and the front wall 122.

  Thereby, the air flowing through the duct 12 is divided into a first air flow F1 passing through the first flow path 12a and a second air flow F2 passing through the second flow path 12b. The first airflow F1 that has passed through the first flow path 12a flows along the guide wall 14 due to the Coanda effect. For this reason, the first airflow F1 is bent backward.

  In the face mode, the airflow deflecting member 13 causes the flow passage width of the first flow passage 12a to be narrower than the flow passage width of the second flow passage 12b. For this reason, the first airflow F1 that has passed through the first flow path 12a is faster than the second airflow F2 that has passed through the second flow path 12b. When the high-speed first air flow F <b> 1 flows, a negative pressure is generated on the downstream side of the air flow deflecting member 13. For this reason, the second air flow F2 is drawn to the downstream side of the air flow deflecting member 13 and merges with the first air flow F1. That is, the second air flow F2 is pulled by the first air flow F1 due to the ejector effect. Further, the second air flow F2 flows along the front surface 132 of the air flow deflecting member 13 due to the Coanda effect. Accordingly, the second air flow F2 is also bent backward.

  As a result, the air flowing inside the duct 12 is blown out from the air outlet 11 toward the upper body of the front seat occupant.

  At this time, the occupant manually adjusts the position of the airflow deflecting member 13 or the control device automatically adjusts the speed difference between the first airflow F1 and the second airflow F2. By adjusting the speed difference, the direction of the air blown out from the air outlet 11 can be finely adjusted.

  In the present embodiment, the airflow deflecting member 13 has a rotation shaft 13 b at a portion closer to the downstream end 134 than the center position 135. Therefore, as shown in FIG. 4, the rotation of the airflow deflecting member 13 maintains the state where the distance La between the upstream end 133 of the airflow deflecting member 13 and the guide wall 14 is almost constant, and the front of the airflow deflecting member 13 and the front. The distance Lb from the wall 122 can be changed. The speed of the airflow is determined by the width of the flow path. Therefore, the speed of the second airflow F2 that has passed through the second flow path 12b can be changed while the speed of the first airflow F1 that has passed through the first flow path 12a is brought close to a constant speed by the rotation of the airflow deflecting member 13. it can.

  As a result, when the airflow deflecting member 13 rotates, the speed difference between the first airflow F1 and the second airflow F2 is adjusted according to the present embodiment as compared to the case where both the distance La and the distance Lb change. It becomes easy. The position of the rotating shaft 13b is preferably closer to the downstream end 134, and the position of the downstream end 134 is most preferable.

  When the blowing mode is the defroster mode, the position of the airflow deflecting member 13 is the position shown in FIG. That is, the position of the upstream end 133 of the airflow deflecting member 13 is a position closer to the rear wall 121 than the position in the face mode.

  In the defroster mode, the flow rate of the first air flow F1 is small and the flow rate of the second air flow F2 is large compared to the face mode. For this reason, the force by which the second air flow F2 is pulled by the first air flow F1 is weak due to the ejector effect.

  Further, in the case of the defroster mode, the front surface 132 of the airflow deflecting member 13 is in a state extending toward the upper side from the rear side as compared with the case of the face mode. For this reason, the air flow direction along the front surface 132 is closer to the upper side than in the face mode.

  As a result, the air flowing inside the duct 12 is blown upward from the air outlet 11. In this way, air whose temperature has been adjusted by the air conditioning unit 20, for example, warm air, is blown out from the air outlet 11 toward the windshield 2.

  As described above, the air blowing device 10 of the present embodiment includes the air outlet 11, the duct 12, and the airflow deflecting member 13. The duct 12 has a rear wall 121 and a front wall 122. A part of the rear wall 121 on the outlet 11 side constitutes the guide wall 14. The guide wall 14 has a curved surface shape that extends from the bottom to the top while continuously bending to the rear side. In the face mode, the airflow deflecting member 13 makes the width of the first flow path 12a in the front-rear direction smaller than the width of the second flow path 12b in the vehicle rear direction. Thereby, the 1st airflow F1 which passed the 1st flow path 12a is made faster than the 2nd airflow F2 which passed the 2nd flow path 12b.

  In the face mode, the first air flow F1 flows along the guide wall 14 due to the Coanda effect. Thereby, the 1st air current F1 bends to the back side. Due to the ejector effect, the high-speed first air flow F1 pulls the low-speed second air flow F2. Thereby, the 2nd air current F2 bends to the back side.

  Furthermore, the front surface 132 of the airflow deflecting member 13 has a curved shape that is continuously bent. In the face mode, the airflow deflecting member 13 is in a state of extending from the bottom to the top while the front surface 132 is bent backward.

  For this reason, the second air flow F <b> 2 flows along the front surface 132 of the air flow deflecting member 13 due to the Coanda effect. Thereby, the 2nd airflow F2 can be bent by the back side.

  As a result, in the face mode, the airflow flowing inside the duct 12 can be greatly bent backward. Therefore, it can suppress that an air current sticks to a vehicle front window.

  Further, in the air blowing device 10 of the present embodiment, the downstream end 134 of the airflow deflecting member 13 is located above the intermediate position P3 of the guide wall 14. Rather than bending the airflow by the Coanda effect on the side away from the air outlet 11, the airflow from the air outlet 11 tends to be directed backward when the airflow is bent by the Coanda effect on the side closer to the air outlet 11. Therefore, according to the present embodiment, the airflow flowing in the duct 12 in the face mode compared to the case where the downstream end 134 of the airflow deflecting member 13 is located below the intermediate position P3 of the guide wall 14. Can be bent more greatly on the rear side.

  In addition, the air blowing device 10 of the present embodiment includes a protruding portion 15. Here, when the air blowing device 10 does not include the protruding portion 15, a part of the second air flow F <b> 2 near the front wall 122 flows along the front wall 122. On the other hand, according to the air blowing device 10 of the present embodiment, the protrusion 15 can bend the portion of the second air flow F2 near the front wall 122 to the rear side. Thereby, at the time of face mode, the airflow which flows through the inside of the duct 12 can be bent largely to the back side.

  Further, in the air blowing device 10 of the present embodiment, the curvature radius R3 of the guide wall 14 is larger than the curvature radius R2 of the front surface 132 of the airflow deflecting member 13. That is, the guide wall 14 is curved more gently than the front surface 132 of the airflow deflecting member 13. According to this, compared with the case where the curvature radius R3 of the guide wall 14 is made smaller than the curvature radius R2 of the front surface 132 of the airflow deflecting member 13, the first airflow that flows along the guide wall 14 due to the Coanda effect. It can suppress that F1 peels from the guide wall 14. FIG.

(Second Embodiment)
As shown in FIG. 8, the air blowing device 10 of the present embodiment is obtained by adding one guide member 16 to the air blowing device 10 of the first embodiment. The other structure of the air blowing apparatus 10 of this embodiment is the same as the air blowing apparatus 10 of 1st Embodiment.

  The guide member 16 is disposed between the airflow deflecting member 13 and the front wall 122. The downstream end 164 of the guide member 16 is located above the intermediate position P3 of the guide wall 14 as with the airflow deflecting member 13. Also in this embodiment, the airflow deflecting member 13 is disposed at a position where the width of the first flow path 12a in the front-rear direction is smaller than the width of the second flow path 12b in the front-rear direction.

  The guide member 16 has the same shape as the airflow deflecting member 13. That is, the guide member 16 has a rear surface 161 that is a rear surface and a front surface 162 that is a front surface. The rear surface 161 extends from the bottom to the top while bending backward. More specifically, the rear surface 161 includes a curved surface that extends from the bottom to the top while continuously bending to the rear side. The front surface 162 extends from the bottom to the top while bending backward. More specifically, the front surface 162 includes a curved surface extending from the bottom to the top while continuously bending to the rear side. The length of the guide member 16 is shorter than the length of the airflow deflecting member 13.

  The guide member 16 is a cantilever door similar to the airflow deflecting member 13. That is, the guide member 16 includes a door main body portion 16a and a rotation shaft 16b provided on the door main body portion 16a.

  The door main body portion 16a is a plate-shaped portion. The door main body portion 16 a has a rear surface 161 and a front surface 162. The front surface 162 has a curved surface shape that extends from the bottom to the top while bending to the rear side over the entire region from the air flow downstream end 164 of the door body portion 16a to the air flow upstream end 163 of the door body portion 16a. Yes.

  The rotating shaft 16b is located at the end of the door body 16a on the downstream side of the air flow. That is, the rotary shaft 16b is located at a position closer to the downstream end 164 than the center position 165 that is equidistant from both the air flow upstream end 163 and the air flow downstream end 164 of the door body 16a. For this reason, the distance from the air flow upstream end 163 of the door main body portion 16a to the rotation shaft 16b is shorter in the rotation shaft 16b than the distance from the air flow downstream end 164 of the door main body portion 16a to the rotation shaft 16b. ing.

  The rotating shaft 16b is arranged in parallel in the left-right direction. For this reason, the guide member 16 rotates in the front-rear direction around the rotation shaft 16b. The guide member 16 is configured to rotate in conjunction with the airflow deflecting member 13.

  The position of the rotating shaft 16b is not limited to the position shown in FIG. The position of the rotary shaft 16b is more than the distance from the air flow upstream end 163 of the door main body portion 16a to the rotary shaft 16b of the door main body portion 16a than the distance from the air flow downstream end 164 of the door main body portion 16a to the rotary shaft 16b. Any position where the distance is shorter may be used.

  The guide member 16 is disposed so as to decrease in the order of the interval Ld, the interval Lc, and the interval La. Here, the interval La is the shortest distance between the airflow deflecting member 13 and the guide wall 14. When the airflow deflecting member 13 and the guide wall 14 are in the positional relationship shown in FIG. 8, the distance between the airflow deflecting member 13 and the guide wall 14 at the position of the downstream end 134 of the airflow deflecting member 13 is the shortest distance. The interval Lc is the shortest distance between the guide member 16 and the airflow deflecting member 13. When the guide member 16 and the airflow deflecting member 13 are in the positional relationship shown in FIG. 8, the distance between the guide member 16 and the airflow deflecting member 13 at the position of the downstream end 164 of the guide member 16 is the shortest distance. The distance Ld is the shortest distance between the front wall 122 and the guide member 16. When the front wall 122 and the guide member 16 have the positional relationship shown in FIG. 8, the distance between the front wall 122 and the guide member 16 at the position of the protrusion 15 is the shortest distance. The interval La, the interval Lc, and the interval Ld are the first interval, the second interval, and the third interval, respectively.

  In the present embodiment, the airflow deflection member 13 and the guide member 16 are at the positions shown in FIGS. As a result, as shown in FIG. 9, the airflow deflecting member 13 forms a first airflow F1 and a second airflow F2. The guide member 16 divides the second airflow F2 into a third airflow F3 that flows on the rear surface 161 side of the guide member 16 and a fourth airflow F4 that flows on the front surface 162 side of the guide member 16.

  At this time, also in this embodiment, the effect of the first embodiment can be obtained. That is, the first air flow F <b> 1 flows along the guide wall 14 due to the Coanda effect. Due to the airflow deflecting member 13, the first airflow F1 becomes faster than the third airflow F3 and the fourth airflow F4. That is, the first airflow F1 becomes faster than the second airflow F2 by the airflow deflecting member 13. Due to the ejector effect, the third air stream F3 and the fourth air stream F4 are pulled by the high-speed first air stream F1. Due to the Coanda effect, the third airflow F3 flows along the front surface 132 of the airflow deflecting member 13.

  Furthermore, according to this embodiment, in addition to the effect of 1st Embodiment, the following effect is acquired. That is, the third air flow F3 becomes faster than the fourth air flow F4 by the guide member 16. For this reason, the fourth air flow F4 is pulled by the high-speed third air flow F3 by the ejector effect. The fourth airflow F4 flows along the front surface 162 of the guide member 16 due to the Coanda effect. Thereby, compared with the case where the guide member 16 is not arrange | positioned, the 2nd airflow F2 which flows through the 2nd flow path 12b can be bent largely back.

  Therefore, according to the air blowing device 10 of the present embodiment, even if the airflow flowing inside the duct 12 is a large flow rate, the airflow flowing inside the duct 12 can be largely bent backward.

(Third embodiment)
As shown in FIG. 10, the air blowing device 10 of this embodiment is fixed so that the guide member 16 does not move relative to the air flow path. The guide member 16 of this embodiment is different from the guide member 16 of the second embodiment only in that it does not have the rotation shaft 16b. The other structure of the air blowing apparatus of this embodiment is the same as the air blowing apparatus 10 of 2nd Embodiment.

  Thus, the guide member 16 may be fixed. This also provides the same effect as in the second embodiment.

(Fourth embodiment)
As shown in FIG. 11, the air blowing device 10 of the present embodiment is fixed so that the guide member 16 does not move relative to the air flow path. The guide member 16 of this embodiment is different from the guide member 16 of the second embodiment only in that it does not have the rotation shaft 16b. Further, the airflow deflecting member 13 is fixed so as not to move with respect to the air flow path. The airflow deflecting member 13 is different from the airflow deflecting member 13 of the first embodiment only in that the rotating shaft 13b is not provided. The other structure of the air blowing device 10 of this embodiment is the same as the air blowing device 10 of 2nd Embodiment. The air blowing device 10 of this embodiment performs only the blowing mode in the face mode.

  Thus, both the guide member 16 and the airflow deflecting member 13 may be fixed. This also provides the same effect as in the second embodiment.

(Fifth embodiment)
As shown in FIG. 12, in the air blowing device 10 of the present embodiment, the guide member 16 is arranged so that the interval Ld and the interval Lc are the same, and the interval La is smaller than both the interval Ld and the interval Lc. ing. The other structure of the air blowing apparatus of this embodiment is the same as the air blowing apparatus 10 of 2nd Embodiment.

  According to this, in addition to the effect of 1st Embodiment, the following effect is acquired. That is, as in the second embodiment shown in FIG. 9, the guide member 16 causes the second air flow F2 to flow on the rear surface 161 side of the guide member 16 and on the front surface 162 side of the guide member 16. It is divided into four air currents F4. In the present embodiment, the fourth air flow F4 flows along the front surface 162 of the guide member 16 due to the Coanda effect. Thereby, compared with the case where the guide member 16 is not arrange | positioned, the 2nd airflow F2 which flows through the 2nd flow path 12b can be bent largely back.

  Therefore, according to the air blowing device 10 of the present embodiment, even if the airflow flowing inside the duct 12 is a large flow rate, the airflow flowing inside the duct 12 can be largely bent backward.

(Sixth embodiment)
As shown in FIG. 13, the air blowing device 10 of this embodiment is obtained by adding two guide members 16 and 17 to the air blowing device 10 of the first embodiment. The other structure of the air blowing apparatus 10 of this embodiment is the same as the air blowing apparatus 10 of 1st Embodiment.

  The two guide members 16 and 17 are arranged between the airflow deflecting member 13 and the front wall 122 side by side in the front-rear direction with a space between each other. The downstream ends 164 and 174 of the guide members 16 and 17 are located above the intermediate position P3 of the guide wall 14 in the same manner as the airflow deflecting member 13. Also in this embodiment, the airflow deflecting member 13 is disposed at a position where the width of the first flow path 12a in the front-rear direction is smaller than the width of the second flow path 12b in the front-rear direction.

  Each of the two guide members 16 and 17 has the same shape as the airflow deflecting member 13. That is, each of the guide members 16 and 17 has rear surfaces 161 and 171 that are rear surfaces and front surfaces 162 and 172 that are front surfaces. The rear surfaces 161 and 171 extend from the bottom to the top while bending rearward. More specifically, the rear surfaces 161 and 171 include curved surfaces that extend from the bottom to the top while continuously bending to the rear side. The front surfaces 162 and 172 extend from the bottom to the top while bending backward. More specifically, the front surfaces 162 and 172 include curved surfaces that extend from the bottom to the top while continuously bending to the rear side. The lengths of the guide members 16 and 17 are shorter than the length of the airflow deflecting member 13. The length of the guide member 17 is shorter than the length of the guide member 16.

  The guide members 16 and 17 are cantilever doors similar to the airflow deflecting member 13. That is, the guide members 16 and 17 include door main body portions 16a and 17a and rotary shafts 16b and 17b provided on the door main body portions 16a and 17a.

  The door main body portions 16a and 17a are plate-shaped portions. The door main body portions 16 a and 17 a have rear surfaces 161 and 171 and front surfaces 162 and 172. The front surfaces 162 and 172 are directed from the bottom to the top while bending backward over the entire region from the air flow downstream ends 164 and 174 of the door main body portions 16a and 172 to the air flow upstream ends 163 and 173 of the door main body portions 16a and 17a. It has a curved shape extending.

  The rotary shafts 16b and 17b are located at the air flow downstream end of the door main body portions 16a and 17a. That is, the rotary shafts 16b and 17b are arranged at the downstream ends 164 from the center positions 165 and 175 that are equidistant from both the air flow upstream ends 163 and 173 and the air flow downstream ends 164 and 174 of the door main body portions 16a and 17a. 174. For this reason, the rotation shafts 16b and 17b have the air flow downstream ends 164 and 174 of the door main body portions 16a and 17a, rather than the distance from the air flow upstream ends 163 and 173 of the door main body portions 16a and 17a to the rotation shafts 16b and 17b. To the rotary shafts 16b and 17b is shorter.

  The rotary shafts 16b and 17b are arranged in parallel in the left-right direction. For this reason, the guide members 16 and 17 rotate in the front-rear direction around the rotation shafts 16b and 17b. The guide members 16 and 17 are configured to rotate in conjunction with the airflow deflecting member 13.

  The positions of the rotary shafts 16b and 17b are not limited to the positions shown in FIG. The positions of the rotary shafts 16b and 17b are the door main body portions 16a and 17a rather than the distance from the air flow upstream ends 163 and 173 of the door main body portions 16a and 17a to the rotary shafts 16b and 17b. As long as the distance from the air flow downstream ends 164 and 174 to the rotary shafts 16b and 17b is shorter, the position may be any position.

  Each of the guide members 16 and 17 is arranged so as to decrease in order of the interval Le, the interval Ld, the interval Lc, and the interval La. Here, the interval Le is the shortest distance between the front wall 122 and the guide member 17. The distance Ld is the shortest distance between the guide member 17 and the guide member 16. The interval Lc and the interval La are as described in the second embodiment.

  In other words, a plurality of flow paths 12e, 12d, 12c, 12a are formed side by side in the front-rear direction between the front wall 122 and the rear wall 121 by the two guide members 16, 17 and the airflow deflecting member 13. The shortest distances Le, Ld, Lc, and La between adjacent walls of the two guide members 16, 17, the airflow deflecting member 13, the front wall 122, and the rear wall 121 become smaller toward the rear side. The two guide members 16 and 17 are disposed (that is, Le> Ld> Lc> La).

  In the present embodiment, in the face mode, the airflow deflecting member 13 and the guide members 16 and 17 are at the positions shown in FIGS. Thereby, as shown in FIG. 14, the first air flow F <b> 1 and the second air flow F <b> 2 are formed by the air flow deflecting member 13. The guide member 16, 17 causes the second air flow F 2 to flow on the rear surface 161 side of the guide member 16, the fourth air flow F 4 flowing on the front surface 162 side of the guide member 16, and the front surface 172 side of the guide member 17. It is divided into the 5th air current F5 which flows through.

  At this time, also in this embodiment, the effect of the first embodiment can be obtained. That is, the first air flow F <b> 1 flows along the guide wall 14 due to the Coanda effect. The first airflow F1 becomes faster than the third airflow F3, the fourth airflow F4, and the fifth airflow F5 by the airflow deflecting member 13. That is, the first airflow F1 becomes faster than the second airflow F2 by the airflow deflecting member 13. Due to the ejector effect, the third airflow F3, the fourth airflow F4, and the fifth airflow F5 are pulled by the high-speed first airflow F1. Due to the Coanda effect, the third airflow F3 flows along the front surface 132 of the airflow deflecting member 13.

  Furthermore, according to this embodiment, in addition to the effect of 1st Embodiment, the following effect is acquired. That is, the third air flow F3 becomes faster than the fourth air flow F4 by the guide member 16. For this reason, the fourth airflow F4 is pulled by the third airflow F3 due to the ejector effect. The fourth airflow F4 flows along the front surface 162 of the guide member 16 due to the Coanda effect. Further, the fourth air flow F4 becomes faster than the fifth air flow F5 by the guide member 17. For this reason, the fifth air flow F5 is pulled by the fourth air flow F4 due to the ejector effect. The fifth air flow F5 flows along the front surface 172 of the guide member 17 by the Coanda effect.

  By these, compared with the case where the guide members 16 and 17 are not arrange | positioned, the 2nd airflow F2 which flows through the 2nd flow path 12b can be bent largely back. Therefore, according to the air blowing device 10 of the present embodiment, even if the airflow flowing inside the duct 12 is a large flow rate, the airflow flowing inside the duct 12 can be largely bent backward.

(Seventh embodiment)
As shown in FIG. 15, the air blowing device 10 of the present embodiment is fixed so that the two guide members 16 and 17 do not move relative to the air flow path. The guide members 16 and 17 of this embodiment differ from the guide members 16 and 17 of the sixth embodiment only in that they do not have the rotation shafts 16b and 17b. Other configurations of the air blowing device of the present embodiment are the same as those of the air blowing device 10 of the sixth embodiment.

  Thus, the two guide members 16 and 17 may be fixed. This also provides the same effect as in the sixth embodiment.

(Eighth embodiment)
As shown in FIG. 16, the air blowing device 10 of the present embodiment is fixed so that the two guide members 16 and 17 do not move relative to the air flow path. The guide members 16 and 17 of this embodiment differ from the guide members 16 and 17 of the sixth embodiment only in that they do not have the rotation shafts 16b and 17b. Further, the airflow deflecting member 13 is fixed so as not to move with respect to the air flow path. The airflow deflecting member 13 is different from the airflow deflecting member 13 of the first embodiment only in that it does not have the rotation shaft 13b. The other structure of the air blowing apparatus 10 of this embodiment is the same as the air blowing apparatus 10 of 6th Embodiment. The air blowing device 10 of this embodiment performs only the blowing mode in the face mode.

  Thus, all of the two guide members 16 and 17 and the airflow deflecting member 13 may be fixed. This also provides the same effect as in the sixth embodiment.

(Ninth embodiment)
As shown in FIG. 17, the air blowing device 10 of the present embodiment has the same interval Le, interval Ld, and interval Lc, so that the interval La is smaller than all of the interval Le, the interval Ld, and the interval Lc. Each of the two guide members 16 and 17 is disposed. The other structure of the air blowing apparatus 10 of this embodiment is the same as the air blowing apparatus 10 of 6th Embodiment.

  According to this, in addition to the effect of 1st Embodiment, the following effect is acquired. That is, similarly to the sixth embodiment shown in FIG. 14, the guide members 16 and 17 cause the second air flow F2 to flow between the third air flow F3 flowing on the rear surface 161 side of the guide member 16 and the front surface 162 side of the guide member 16. The flow is divided into a fourth air flow F4 that flows and a fifth air flow F5 that flows on the front surface 172 side of the guide member 17. In the present embodiment, the fourth air flow F4 flows along the front surface 162 of the guide member 16 due to the Coanda effect. The fifth air flow F5 flows along the front surface 172 of the guide member 17 by the Coanda effect. As a result, the second air flow F2 flowing through the second flow path 12b can be largely bent backward as compared with the case where the two guide members 16 and 17 are not disposed.

  Therefore, according to the air blowing device 10 of the present embodiment, even if the airflow flowing inside the duct 12 is a large flow rate, the airflow flowing inside the duct 12 can be largely bent backward.

(Other embodiments)
The present disclosure is not limited to the above-described embodiment, and can be appropriately changed within the scope described in the claims as follows.

  (1) In each of the above embodiments, the rear surface 131 of the airflow deflecting member 13 has a shape that extends from the bottom to the top while bending backward, but is not limited thereto. As shown in FIG. 18, the rear surface 131 may be a flat surface that extends straight obliquely rearward from bottom to top. The same applies to the rear surfaces 161 and 171 of the guide members 16 and 17.

  (2) In each of the above embodiments, the rotating shaft 13b of the airflow deflecting member 13 is located at the end of the door body 13a on the downstream side of the air flow, but is not limited thereto. As shown in FIG. 19, the rotating shaft 13b may be located at a central position 135 that is equidistant from both the upstream end 133 and the downstream end 134 of the door body 13a. Moreover, as shown in FIG. 20, you may be located in the edge part of the air flow upstream of the door main-body part 13a.

  (3) In each of the above embodiments, the lower surface 152 of the projecting portion 15 is a flat surface that extends straight obliquely rearward from below to above, but is not limited thereto. As shown in FIG. 21, the lower surface 152 may be a curved surface that extends while being bent obliquely backward from the bottom to the top. Further, as shown in FIG. 22, the lower surface 152 may be a flat surface extending horizontally from the front to the rear. Moreover, as shown in FIG. 23, each of the upper surface 151 and the lower surface 152 may be a flat surface extending obliquely downward from the front to the rear.

  As described above, regardless of the shape of the lower surface 152, the effect of the protruding portion 15 can be obtained as in the first embodiment. However, it is preferable that the shape of the lower surface 152 is a shape that extends obliquely rearward from the bottom to the top, like the protruding portion 15 of the first embodiment and the protruding portion 15 shown in FIG. Thereby, the turbulence of the air flow generated on the upstream side of the air flow of the protrusion 15 can be suppressed.

  (4) In each of the above embodiments, the protruding portion 15 is provided, but the protruding portion 15 may not be provided. Even in such a case, the effect of the shape of the front surface 132 of the airflow deflecting member 13 can be obtained.

  (5) In each of the above embodiments, the front surface 132 of the airflow deflecting member 13 has a curved surface extending from the bottom to the top while continuously bending to the rear side, but is not limited thereto. The front surface 132 may have a shape that extends from the bottom to the top while bending to the rear side. The front surface 132 may have a shape in which a flat surface has a corner and is bent rearward. The same applies to the shapes of the guide walls 14 and the front surfaces 162 and 172 of the guide members 16 and 17.

  (6) In the sixth to ninth embodiments, the air blowing device 10 includes the two guide members 16 and 17, but is not limited thereto. The air blowing device 10 may include three or more guide members.

  (7) The above embodiments are not irrelevant to each other, and can be combined as appropriate unless the combination is clearly impossible. In each of the above-described embodiments, it is needless to say that elements constituting the embodiment are not necessarily indispensable except for the case where it is clearly indicated that the element is essential and the case where the element is clearly considered essential in principle. Yes.

(Summary)
According to the 1st viewpoint shown by a part or all of said each embodiment, an air blowing apparatus is provided with a blower outlet, a flow-path formation member, and an airflow deflection | deviation member. A blower outlet is provided in the upper surface part of the instrument panel of a vehicle. The flow path forming member forms an air flow path connected to the air flow upstream side of the air outlet. The flow path forming member has a front wall and a rear wall. The air flow path has a first flow path and a second flow path. The airflow deflecting member makes the first airflow that has passed through the first flow path faster than the second airflow that has passed through the second flow path. A part of the rear wall on the outlet side constitutes a guide wall for guiding the first airflow. The guide wall extends from the bottom to the top while bending toward the vehicle rear side. The airflow deflecting member has at least a plate-shaped portion. The plate-shaped portion has a front surface that is a front surface of the vehicle. The front surface of the plate-shaped portion extends from the bottom to the top while bending toward the vehicle rear side.

  According to the second aspect, the air flow downstream end of the airflow deflecting member is located above the intermediate position in the guide wall. Here, it is better to bend the airflow along the guide wall by the Coanda effect on the side closer to the air outlet than on the side away from the air outlet, than the airflow bend along the guide wall by the Coanda effect. The airflow becomes easier to go backwards. Therefore, according to this, compared with the case where the downstream end of the airflow deflecting member is located below the intermediate position of the guide wall, the airflow flowing inside the air flow path can be bent more greatly on the rear side. .

  Moreover, according to the 3rd viewpoint, an airflow deflection | deviation member has a rotating shaft provided in the plate-shaped part. The rotating shaft is provided at a position where the distance from the air flow downstream end of the plate-shaped portion to the rotating shaft is shorter than the distance from the air flow upstream end of the plate-shaped portion to the rotating shaft.

  According to this. By rotating the airflow deflecting member, the distance between the airflow deflecting member and the front wall can be changed while maintaining a state where the distance between the upstream end of the airflow deflecting member and the guide wall is almost constant. Here, the speed of the airflow is determined by the width of the flow path. Therefore, the speed of the second airflow that has passed through the second flow path can be changed while the speed of the first airflow that has passed through the first flow path approaches a constant speed by the rotation of the airflow deflecting member. For this reason, when the airflow deflecting member rotates, it becomes easier to adjust the speed difference between the first airflow and the second airflow as compared with the case where both of the distances described above change.

  According to the fourth aspect, the air blowing device further includes a guide member disposed between the airflow deflecting member and the front wall. The guide member has at least a plate-shaped portion. The plate-shaped portion of the guide member has a front surface that is a front surface of the vehicle. The front surface of the plate-shaped portion of the guide member extends from bottom to top while bending toward the vehicle rear side.

  According to this, the second airflow is divided by the guide member into a third airflow that flows on the rear surface side of the guide member and a fourth airflow that flows on the front surface side of the guide member. And a 4th airflow flows along the front surface of a guide member by the Coanda effect. Thereby, compared with the case where the guide member is not arrange | positioned, the 2nd airflow which flows through the 2nd flow path between an airflow deflection | deviation member and a front wall can be bent largely back.

  Therefore, according to this air blowing device, even if the airflow flowing through the air flow path is a large flow rate, the airflow flowing through the air flow path can be largely bent backward.

  According to the fifth aspect, in the fourth aspect, the guide member is disposed so as to decrease in the order of the third interval, the second interval, and the first interval. The first interval is the shortest distance between the airflow deflecting member and the rear wall. The second interval is the shortest distance between the guide member and the airflow deflecting member. The third distance is the shortest distance between the guide member and the front wall.

  Due to the guide member, the third air flow is faster than the fourth air flow. For this reason, the fourth air stream is pulled by the high-speed third air stream by the ejector effect. Thereby, the 2nd airflow which flows through the 2nd channel can be bent greatly to the back side.

  Therefore, according to this air blowing device, even if the airflow flowing through the air flow path is a large flow rate, the airflow flowing through the air flow path can be bent largely to the rear side.

  According to the sixth aspect, the guide member is fixed so as not to move with respect to the air flow path. The guide member can thus be fixed.

  According to the 7th viewpoint, a guide member has a rotating shaft provided in the plate-shaped part. The rotating shaft of the guide member is provided at a position where the distance from the downstream end of the plate-shaped portion to the rotating shaft is shorter than the distance from the upstream end of the plate-shaped portion to the rotating shaft. The guide member can thus be movable.

  According to the eighth aspect, the air blowing device further includes a plurality of guide members arranged between the airflow deflecting member and the front wall and arranged side by side in the vehicle front-rear direction. Each of the plurality of guide members has at least a plate-shaped portion. Each of the plate-shaped portions of the plurality of guide members has a front surface that is a front surface of the vehicle. Each of the front surfaces of the plate-shaped portions of the plurality of guide members extends from the bottom to the top while bending toward the vehicle rear side.

  According to this, the second airflow is divided into a plurality of airflows by the plurality of guide members. And in each of a plurality of guide members, the air current which flows through the front side of one guide member flows along the front of the guide member by the Coanda effect. Thereby, compared with the case where the some guide member is not arrange | positioned, the 2nd airflow which flows through the 2nd flow path between an airflow deflection | deviation member and a front wall can be bent largely back.

  Therefore, according to this air blowing device, even if the airflow flowing through the air flow path is a large flow rate, the airflow flowing through the air flow path can be largely bent backward.

  According to the ninth aspect, in the eighth aspect, a plurality of flow paths are formed side by side in the vehicle front-rear direction between the front wall and the rear wall by the plurality of guide members and the airflow deflecting member. The plurality of guide members are arranged so that the minimum value of the channel widths of the plurality of channels becomes smaller toward the vehicle rear side. The flow path width of each of the plurality of flow paths is an interval between adjacent walls among the plurality of guide members, the airflow deflecting member, the front wall, and the rear wall.

  According to this, in each of the plurality of guide members, the airflow flowing on the rear surface side of one guide member is faster than the airflow flowing on the front surface side of the guide member. For this reason, the airflow flowing on the front side of one guide member is pulled by the airflow flowing on the rear side of the guide member due to the ejector effect. Thereby, the 2nd airflow which flows through the 2nd channel can be bent greatly to the back side.

  Therefore, according to this air blowing device, even if the airflow flowing through the air flow path is a large flow rate, the airflow flowing through the air flow path can be bent largely to the rear side.

  According to the tenth aspect, each of the plurality of guide members is fixed so as not to move with respect to the air flow path. A plurality of guide members can be fixed in this way.

  According to the 11th viewpoint, each of a some guide member has a rotating shaft provided in the plate-shaped part. Each of the rotation shafts of the plurality of guide members is provided at a position where the distance from the air flow downstream end of the plate-shaped portion to the rotation shaft is shorter than the distance from the air flow upstream end of the plate-shaped portion to the rotation shaft. It has been. A plurality of guide members can be movable in this way.

  According to the 12th viewpoint, the curvature radius of a guide wall is made larger than the curvature radius of the front surface of the plate-shaped part of an airflow deflection | deviation member. According to this, compared with the case where the curvature radius of the guide wall is smaller than the curvature radius of the front surface of the plate-shaped portion of the airflow deflecting member, the airflow flowing along the guide wall due to the Coanda effect It can suppress peeling from.

  According to the thirteenth aspect, the air blowing device further includes a protruding portion protruding from the front wall toward the rear of the vehicle. A protrusion part is provided in the site | part of an air flow downstream rather than the air flow upstream end of an airflow deflection | deviation member among front walls.

  Here, when the air blowing device does not include the protruding portion, the airflow in the portion close to the front wall in the second airflow flows along the front wall. On the other hand, according to this air blowing device, the airflow in the portion close to the front wall in the second airflow can be bent backward by the protrusion. Thereby, the airflow which flows through the inside of an air flow path can be bent largely to the back side.

According to the present disclosure, the air blowing device is
An air outlet that is provided on the upper surface of the instrument panel of the vehicle and blows out air;
A flow path forming member that forms an air flow path connected to the air flow upstream side of the air outlet;
An airflow deflecting member disposed in the air flow path and generating two airflows having different flow velocities in the air flow path;
The flow path forming member has a front wall on the front side of the vehicle, a rear wall located on the vehicle rear side of the front wall and facing the front wall,
The air flow path has a first flow path between the air flow deflecting member and the rear wall, and a second flow path between the air flow deflecting member and the front wall,
The airflow deflecting member reduces the width of the first flow path in the vehicle front-rear direction to be smaller than the width of the second flow path in the vehicle front-rear direction, thereby causing the first airflow that has passed through the first flow path to It is faster than the second airflow that has passed through the road,
A part on the outlet side of the rear wall constitutes a guide wall for guiding the first airflow,
The guide wall extends from the bottom to the top while turning to the rear side of the vehicle,
The airflow deflecting member has at least a plate-shaped portion,
The plate-shaped portion has a front surface that is a front surface of the vehicle and a rear surface that is a rear surface of the vehicle,
The front surface of the plate-shaped portion extends from the bottom to the top while bending toward the vehicle rear side, and includes a curved surface having a predetermined radius of curvature (R2).
The wall surface of the guide wall is a curved surface having a predetermined radius of curvature (R3),
The curvature radius of the wall surface of the guide wall is larger than the curvature radius of the front surface of the plate-shaped portion .

Claims (13)

An air blowing device that blows air into a vehicle interior space,
An air outlet (11) that is provided on the upper surface (1a) of the instrument panel of the vehicle and blows out air;
A flow path forming member (12) for forming an air flow path connected to the air flow upstream side of the air outlet;
An airflow deflecting member (13) disposed in the air flow path and generating two airflows having different flow velocities in the air flow path,
The flow path forming member has a front wall (122) on the front side of the vehicle, and a rear wall (121) located on the vehicle rear side of the front wall and facing the front wall,
The air flow path includes a first flow path (12a) between the air flow deflecting member and the rear wall, and a second flow path (12b) between the air flow deflecting member and the front wall. ,
The airflow deflecting member reduces the width of the first flow path in the vehicle front-rear direction to be smaller than the width of the second flow path in the vehicle front-rear direction, thereby allowing the first airflow that has passed through the first flow path to be reduced. , Faster than the second airflow passing through the second flow path,
A part on the outlet side of the rear wall constitutes a guide wall (14) for guiding the first airflow,
The guide wall extends from the bottom to the top while bending to the vehicle rear side,
The airflow deflecting member has at least a plate-shaped portion (13a),
The plate-shaped portion has a front surface (132) which is a surface on the front side of the vehicle and a rear surface (131) which is a surface on the rear side of the vehicle.
An air blowing device in which a front surface of the plate-shaped portion extends from the bottom to the top while bending toward the vehicle rear side.   An air flow downstream end (134) of the airflow deflecting member is above an intermediate position (P3) in the vehicle vertical direction between a position (P1) where the guide wall starts to bend toward the vehicle rear side and a position (P2) where the bend ends (P2) The air blowing device according to claim 1, which is located in The airflow deflecting member has a rotation shaft (13b) provided in the plate-shaped portion,
The rotation shaft has a shorter distance from the air flow downstream end (134) of the plate-shaped portion to the rotation shaft than a distance from the air flow upstream end (133) of the plate-shaped portion to the rotation shaft. The air blowing device according to claim 1 or 2, wherein the air blowing device is provided at a position. And a guide member (16) disposed between the airflow deflecting member and the front wall.
The guide member has at least a plate-shaped portion (16a),
The plate-shaped portion of the guide member has a front surface (162) that is a surface on the front side of the vehicle and a rear surface (161) that is a surface on the rear side of the vehicle.
The air blowing device according to any one of claims 1 to 3, wherein a front surface of the plate-shaped portion of the guide member extends from the bottom to the top while bending toward the vehicle rear side. The shortest distance between the airflow deflecting member and the rear wall is a first distance (La), and the shortest distance between the guide member and the airflow deflecting member is a second distance (Lc), and the guide member and the front wall are When the shortest distance is the third interval (Ld),
The air blowing device according to claim 4, wherein the guide member is disposed so as to be smaller in the order of the third interval, the second interval, and the first interval.   The air blowing device according to claim 4 or 5, wherein the guide member is fixed so as not to move with respect to the air flow path. The guide member has a rotation shaft (16b) provided in the plate-shaped portion,
The rotation axis of the guide member has a distance from the air flow downstream end (164) of the plate-shaped portion to the rotation shaft rather than the distance from the air flow upstream end (163) of the plate-shaped portion to the rotation shaft. The air blowing device according to claim 4 or 5, wherein the air blowing device is provided at a position where the length becomes shorter. And a plurality of guide members (16, 17) disposed between the airflow deflecting member and the front wall and arranged side by side in the vehicle front-rear direction.
Each of the plurality of guide members has at least a plate-shaped portion (16a, 17a),
Each of the plate-shaped portions of the plurality of guide members has a front surface (162, 172) that is a surface on the vehicle front side and a rear surface (161, 171) that is a surface on the vehicle rear side.
The air blowing device according to any one of claims 1 to 3, wherein each of the front surfaces of the plate-shaped portions of the plurality of guide members extends from the bottom to the top while bending toward the vehicle rear side. A plurality of flow paths (12e, 12d, 12c, 12a) are formed side by side in the vehicle front-rear direction between the front wall and the rear wall by the plurality of guide members and the airflow deflecting member,
The shortest distances (Le, Ld, Lc, La) between adjacent walls of the plurality of guide members, the airflow deflecting member, the front wall, and the rear wall become smaller toward the vehicle rear side. The air blowing device according to claim 8, wherein the plurality of guide members are arranged.   The air blowing device according to claim 8 or 9, wherein each of the plurality of guide members is fixed so as not to move with respect to the air flow path. Each of the plurality of guide members has a rotation shaft (16b, 17b) provided in the plate-shaped portion,
Each of the rotation shafts of the plurality of guide members has an air flow downstream end (164, 174) of the plate-shaped portion, rather than a distance from the air flow upstream end (163, 173) of the plate-shaped portion to the rotation shaft. The air blowing device according to claim 8 or 9, wherein the air blowing device is provided at a position where a distance from the rotating shaft to the rotating shaft becomes shorter. The guide wall has a curved surface shape with a predetermined radius of curvature (R3),
The front surface of the plate-shaped portion of the airflow deflecting member has a curved surface shape with a predetermined radius of curvature (R2),
The air blowing device according to any one of claims 1 to 11, wherein a radius of curvature of the guide wall is larger than a radius of curvature of a front surface of the plate-shaped portion of the airflow deflecting member.   Furthermore, it is provided in the site | part of the air flow downstream side rather than the air flow upstream end (133) of the said airflow deflection | deviation member among the said front walls, and is provided with the protrusion part (15) which protrudes toward the vehicle rear from the said front wall. Item 13. The air blowing device according to any one of Items 1 to 12.

Images