JP6265302B2 - Air blowing device - Google Patents

Description

Cross-reference to related applications

  This application is based on Japanese Patent Application No. 2015-0669618 filed on Mar. 30, 2015, the description of which is incorporated herein by reference.

  The present disclosure relates to an air blowing device that blows air toward a vehicle interior space.

  Patent Literature 1 discloses an air blowing device in which an air outlet that blows air toward a vehicle interior space is provided in a portion on the windshield side of an upper surface portion of an instrument panel.

  This outlet serves as both a defroster outlet and a face outlet. In this air blowing device, in the face mode, the blown air blown from the air outlet flows over the upper surface of the instrument panel and then reaches the occupant.

JP, 2014-210564, A

  However, the conventional air blowing device described above has the following problems because the air outlet is provided on the upper surface of the instrument panel.

  That is, the air outlet of the above-described conventional air blowing device is larger than a general defroster air outlet. For this reason, the designability of the instrument panel 1 is impaired when the air outlet is visible to the passenger.

  Further, when the air is blown from the air outlet toward the vehicle interior space (that is, the passenger compartment), the direction of the blown air toward the passenger depends on the shape of the upper surface portion. For this reason, when the upper surface portion has a shape that extends obliquely upward from the front of the vehicle to the rear or a shape that extends in the horizontal direction from the front of the vehicle to the rear, It cannot be directed directly to the space below the part. Therefore, in the conventional air blowing device described above, it is difficult to blow air to the space below the upper surface portion in the vehicle interior space, and the range in the vertical direction in which air can be blown to the vehicle interior space is narrowed. .

  The present disclosure provides an air blowing device that can improve the design of the instrument panel and has a wide blowable range in the vertical direction with respect to the vehicle interior space, as compared with the conventional air blowing device described above. With the goal.

According to one aspect of the present disclosure,
Air blower that blows out air
In the front part of the instrument panel in the passenger compartment, a recess constituting wall constituting a recess recessed toward the front of the vehicle,
A blowout opening that opens in the recess-constituting wall and blows out air toward the rear of the vehicle;
A flow path forming portion that forms an air flow path connected to the air flow upstream side of the air outlet;
An air flow deflecting member that is provided in the air flow path and generates two air flows having different flow velocities in the air flow path;
The recessed portion constituting wall has a recessed portion upper wall and a recessed portion lower wall located on each of the upper side and the lower side across the internal space of the recessed portion,
The flow path forming portion has a first wall that continues to the upper wall of the recess, and a second wall that faces the first wall,
In the air flow path, when the first flow path is between the air flow deflecting member and the first wall and the second flow path is between the air flow deflecting member and the second wall,
The airflow deflection member adjusts the speed of the airflow in the first flow path and the speed of the airflow in the second flow path,
The first wall and the upper wall of the recess are configured such that when the airflow deflecting member relatively generates a high-speed airflow in the first flow path and generates a low-speed airflow in the second flow path, the high-speed airflow is applied to the wall surface. A guide surface that flows along,
The guide surface has a portion on the vehicle rear side of the airflow deflecting member on the first wall and the upper wall of the recess so that the direction of the high-speed airflow is directed to the space above the recess in the vehicle interior space. In FIG. 2, the vehicle extends while turning upward toward the rear of the vehicle.

  According to this, since the blower outlet is provided in the inside of the recessed part in the front part of an instrument panel, and a blower outlet is hard to see from a passenger | crew, the design property of an instrument panel is not impaired.

  Moreover, in the air blowing apparatus of this viewpoint, the blower outlet is provided in the front part instead of the upper surface part of the instrument panel. For this reason, it is possible to blow air toward the space below the upper surface portion in the vehicle interior space from the outlet without being affected by the shape of the upper surface portion. Furthermore, in the air blowing device according to the present aspect, the air flow deflecting member and the guide surface can also blow air from the air outlet to the space above the recess in the vehicle interior space. That is, when the airflow deflecting member generates a high-speed airflow in the first flow path and a low-speed airflow in the second flow path, the high-speed airflow bends along the guide surface, and the low-speed airflow becomes the high-speed airflow. Bends by being drawn into. Thereby, it can ventilate from a blower outlet to the space above an upper surface part among vehicle interior space.

  Therefore, according to this aspect, compared with the above-described conventional air blowing device, the design of the instrument panel can be improved, and the air blowing in the vertical direction that can blow air to the vehicle interior space is wide. Equipment can be provided.

According to another aspect of the present disclosure,
Air blower that blows out air
In the front part of the instrument panel in the passenger compartment, a wall part that forms the lower surface of the protruding part that protrudes toward the rear of the vehicle, and
An air outlet that opens into the wall and blows air toward the rear of the vehicle;
A flow path forming portion that forms an air flow path connected to the air flow upstream side of the air outlet;
An air flow deflecting member that is provided in the air flow path and generates two air flows having different flow velocities in the air flow path;
The flow path forming portion has a first wall that continues to the wall portion, and a second wall that faces the first wall,
In the air flow path, when the first flow path is between the air flow deflecting member and the first wall and the second flow path is between the air flow deflecting member and the second wall,
The airflow deflection member adjusts the speed of the airflow in the first flow path and the speed of the airflow in the second flow path,
The first wall and the wall portion have a high-speed airflow along the surface when the airflow deflecting member relatively generates a high-speed airflow in the first flow path and generates a low-speed airflow in the second flow path. A guide surface that flows through
The guide surface is a portion of the first wall and the wall portion on the vehicle rear side of the airflow deflecting member so that the direction of the high-speed airflow is directed to the space above the protruding portion in the vehicle interior space. In FIG. 2, the vehicle extends while turning upward toward the rear of the vehicle.

  According to this, since the blower outlet is provided in the lower surface of the protrusion part in the front part of an instrument panel, and a blower outlet is hard to see from a passenger | crew, the design property of an instrument panel is not impaired.

  Moreover, in the air blowing apparatus of this viewpoint, the blower outlet is provided in the front part instead of the upper surface part of the instrument panel. For this reason, it is possible to blow air toward the space below the upper surface portion in the vehicle interior space from the outlet without being affected by the shape of the upper surface portion. Furthermore, in the air blowing device according to this aspect, the airflow deflecting member and the guide surface can also blow air from the outlet to the space above the projecting portion in the vehicle interior space. That is, when the airflow deflecting member generates a high-speed airflow in the first flow path and a low-speed airflow in the second flow path, the high-speed airflow bends along the guide surface, and the low-speed airflow becomes the high-speed airflow. Bends by being drawn into. Thereby, it can ventilate from a blower outlet to the space above an upper surface part among vehicle interior space.

  Therefore, according to this aspect, compared with the above-described conventional air blowing device, the design of the instrument panel can be improved, and the air blowing in the vertical direction that can blow air to the vehicle interior space is wide. Equipment can be provided.

According to yet another aspect of the present disclosure,
Air blower that blows out air
An opening forming portion that is provided in the front portion of the instrument panel in the passenger compartment and forms an opening space;
A flow path forming section that is continuous with the opening forming section and forms an air flow path inside;
An air flow deflecting member that is provided in the air flow path and generates two air flows having different flow velocities in the air flow path;
The opening forming portion has an opening upper wall and an opening lower wall located on each of the upper side and the lower side across the opening space,
The flow path forming portion has a first wall that continues to the upper wall of the opening, and a second wall that faces the first wall,
Each of the first wall and the second wall has a portion extending downward toward the opening forming portion from the vehicle front to the vehicle rear,
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 deflection member adjusts the speed of the airflow in the first flow path and the speed of the airflow in the second flow path,
The first wall and the upper opening wall cause the airflow deflecting member to generate a higher speed airflow in the first flow path than the airflow in the second flowpath, and in the second flowpath to be lower in speed than the airflow in the first flow path. When the air flow is generated, it has a guide surface where a high-speed air flow flows along the wall surface,
The guide surface is a surface that bends upward toward the rear of the vehicle at a portion of the first wall and the upper wall of the opening on the vehicle rear side of the airflow deflecting member.

  In this air blowing device, each of the first wall and the second wall has a portion extending downward toward the opening forming portion from the front of the vehicle to the rear of the vehicle. That is, the flow path forming portion extends downward from the front of the vehicle toward the rear of the vehicle toward the opening forming portion. For this reason, the airflow deflecting member inside the flow path forming portion is not visible to the seated passenger. Therefore, according to this air blowing device, the design of the instrument panel is not impaired.

  Moreover, in the air blowing apparatus of this viewpoint, air is blown out from the opening formation part provided in the front part instead of the upper surface part of the instrument panel. For this reason, it is possible to blow air from the opening forming portion toward the space below the upper surface portion in the vehicle interior space without being affected by the shape of the upper surface portion. Furthermore, in the air blowing device according to this aspect, the air flow deflecting member and the guide surface can also blow air from the opening forming portion to the space above the opening forming portion in the vehicle interior space. That is, when the airflow deflecting member generates a high-speed airflow in the first flow path and a low-speed airflow in the second flow path, the high-speed airflow bends along the guide surface, and the low-speed airflow becomes the high-speed airflow. Bends by being drawn into. Thereby, it can blow from the opening formation part to the space above an upper surface part among vehicle interior space.

  Therefore, according to this aspect, compared with the above-described conventional air blowing device, the design of the instrument panel can be improved, and the air blowing in the vertical direction that can blow air to the vehicle interior space is wide. Equipment can be provided.

It is a front view of the instrument panel carrying the air blowing apparatus of 1st Embodiment and 2nd Embodiment. It is a schematic diagram which shows arrangement | positioning in the vehicle interior of the air blowing apparatus of 1st Embodiment. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1 and is a diagram illustrating a configuration of an air blowing device according to a second embodiment. It is a front view of the instrument panel carrying the air blowing apparatus of 3rd Embodiment. It is a schematic diagram which shows arrangement | positioning in the vehicle interior of the air blowing apparatus of 3rd Embodiment. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 5.

  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)
The air blowing device according to the present embodiment is an application of the air blowing device according to the present disclosure to a portion of a duct and a duct on the passenger seat side of an air conditioning unit for a front seat mounted in front of a vehicle.

  First, an instrument panel on which the air blowing device of the present embodiment is installed will be described. As shown in FIGS. 1 and 2, the instrument panel 1 is an instrument panel provided in front of the vehicle interior. The instrument panel 1 referred to in this specification refers to the entire panel located in front of the front seat in the vehicle interior, including not only the portion where the instruments are arranged, but also the portion that houses the audio and air conditioning unit.

  The instrument panel 1 has an upper surface portion 1a and a front surface portion 1b. The upper surface portion 1 a is a portion having an upper end surface in the instrument panel 1. In other words, the upper surface portion 1a is a portion of the instrument panel 1 that overlaps when a vehicle front window (that is, a windshield) is projected directly below, and is a portion that is reflected on the vehicle front window. The front portion 1b is a portion of an end surface on the vehicle rear side in the instrument panel 1, and is also a portion called a design surface portion. In other words, the front portion 1b is a portion that extends along the vehicle vertical direction, and is a portion that divides the vehicle interior space into a space for accommodating an air conditioning unit or the like and a passenger compartment in the vehicle longitudinal direction. The instrument panel 1 is mounted on a right-hand drive vehicle. Therefore, the vehicle right side of the front portion 1b is the driver seat side, and the vehicle left side of the front portion 1b is the passenger seat side.

  A glove box 2 and an accessory case 3 are provided at a portion of the front portion 1b on the passenger seat side. The glove box 2 is a box for large items. The glove box 2 is located on the lower side of the front side portion 1b on the passenger seat side. The accessory case 3 is a small case box having a smaller volume than the glove box 2. The accessory case 3 is located on the upper side of the glove box 2 in the portion on the passenger seat side of the front portion 1b.

  Further, a recessed portion 4 is provided between the glove box 2 and the accessory case 3 at a portion of the front portion 1b on the passenger seat side. The recess 4 extends in the vehicle left-right direction.

  Next, the air blowing device 10 of this embodiment will be described. As shown in FIG. 2, the air blowing device 10 includes a blowout port 11, a duct 12, and an airflow deflection door 13. The blower outlet 11 is located inside the recessed part 4 between the glove box 2 and the accessory case 3 of the front part 1b. The duct 12 connects the air outlet 11 and the air conditioning unit 50. The airflow deflecting door 13 is located in the duct 12 and upstream of the air outlet 11 from the air outlet 11. The air conditioning unit 50 is a vehicle air conditioner that is disposed on the vehicle front side of the instrument panel 1 in the vehicle interior and blows out temperature-controlled air into the vehicle interior.

  As shown in FIG. 3, the glove box 2 includes a box-shaped main body wall 2 a having an opening on the vehicle rear side and a lid 2 b that covers the opening while forming a storage space inside. . The accessory case 3 includes a box-shaped main body wall 3a having an opening on the vehicle rear side and a lid 3b that covers the opening while forming a storage space therein. In addition, the instrument panel 1 of this embodiment is formed with resin, and the main body wall 2a and the lid 2b of the glove box 2 and the main body wall 3a and the lid 3b of the accessory case 3 are also formed of resin. ing.

  The air outlet 11 is an opening formed between the concave upper wall 4a and the concave lower wall 4b constituting the concave 4. The concave upper wall 4a and the concave lower wall 4b are concave-constituting walls constituting the concave 4, respectively, and are an upper wall and a lower wall sandwiching the internal space of the concave 4. In the present embodiment, the concave upper wall 4 a is constituted by the lower end portion of the main body wall portion 3 a of the accessory case 3, and the concave lower wall 4 b is constituted by the upper end portion of the main body wall portion 2 a of the glove box 2. .

  Moreover, the blower outlet 11 is comprised by the air flow downstream end part of the duct 12. As shown in FIG. In other words, the duct 12 is connected to the air flow upstream side of the air outlet 11.

  The duct 12 is a flow path forming part that forms therein an air flow path connected to the air flow upstream side of the air outlet 11, and has a first wall 121 and a second wall 122. The first wall 121 is continuous with the concave upper wall 4a. The second wall 122 is continuous with the concave lower wall 4b. The duct 12 is made of resin.

  A portion of the first wall 121 on the downstream end side of the air flow extends obliquely upward from the air outlet 11 toward the front. In other words, the portion of the first wall 121 on the air flow downstream end side extends obliquely upward from the air flow downstream end portion of the first wall 121 toward the front. Similarly, a portion of the second wall 122 on the downstream end side of the air flow extends obliquely upward from the air outlet 11 toward the front. In other words, the portion of the second wall 122 on the air flow downstream end side extends obliquely upward from the air flow downstream end portion of the second wall 122 toward the front. For this reason, the direction of the airflow flowing between the portion of the first wall 121 on the air flow downstream end portion side and the portion of the second wall on the air flow downstream end portion side is obliquely downward toward the rear of the vehicle. In other words, the opening direction of the air outlet 11 is obliquely downward toward the rear of the vehicle.

  The airflow deflecting door 13 is an airflow deflecting member that generates two airflows having different flow velocities in the duct 12. The airflow deflection door 13 changes the speed of each airflow in the first flow path 12a and the second flow path 12b inside the duct 12. The first flow path 12 a is a flow path formed between the airflow deflection door 13 and the first wall 121 of the duct 12. The second flow path 12 b is a flow path formed between the airflow deflection door 13 and the second wall 122 of the duct 12.

  The airflow deflection door 13 is at least in a first state in which a high-speed airflow F1 is generated in the first flow path 12a and a low-speed airflow F2 is generated in the second flow path 12b. In other words, the airflow deflecting door 13 generates at least the airflow F1 higher than the airflow of the second flowpath 12b in the first flowpath 12a and the airflow of the first flowpath 12a in the second flow path 12b. A first state in which a low-speed air flow F2 is generated is assumed. The airflow deflection door 13 adjusts the speed difference between the high-speed airflow F1 and the low-speed airflow F2 in the first state. In the present embodiment, the airflow deflecting door 13 can also switch between the first state and the second state in which the airflow speed of the first flow path 12a and the airflow speed of the second flow path 12b are the same.

  In the present embodiment, a resin-made butterfly door is employed as the airflow deflecting door 13. The butterfly door includes a plate-like door main body and a rotary shaft provided at the center of the door main body. The rotation shaft is arranged in parallel with the vehicle left-right direction. For this reason, the airflow deflection door 13 rotates (that is, rotates) with the vehicle left-right direction as an axis. The rotation axis is located on the vehicle rear side with respect to the center of the duct 12 in the vehicle front-rear direction. This is because the flow passage cross-sectional area of the first flow passage 12a is reduced to facilitate the formation of a high-speed air flow in the first flow passage 12a. The airflow deflecting door 13 is rotated so as to be at a predetermined door position by electrical control of an air conditioning control device (not shown).

  The air blowing device 10 of the present embodiment has a guide surface 14 formed on the first wall 121 and the concave upper wall 4a. The guide surface 14 changes the direction of the airflow from obliquely downward to obliquely upward at the rear of the vehicle by bending the high-speed airflow F1 from the first flow path 12a along the wall surface by the Coanda effect. The guide surface 14 extends while bending upward toward the rear of the vehicle at a portion of the first wall 121 and the concave upper wall 4a on the vehicle rear side of the airflow deflecting door 13. In the present embodiment, the guide surface 14 is curved and extends obliquely upward, and is a convex curved surface toward the vehicle lower side. A curved surface is a gentle curved surface.

  If this embodiment is demonstrated from another viewpoint, the air blowing apparatus 10 of this embodiment is provided with the opening formation part 4, the duct 12, and the airflow deflection | deviation door 13, as shown in FIG.

  The opening formation part 4 is provided between the glove box 2 and the accessory case 3 of the front part 1b. The opening forming part 4 forms an opening space S1. The opening forming portion 4 corresponds to the concave portion 4 described above. The opening forming part 4 has an opening upper wall 4a and an opening lower wall 4b positioned on the upper side and the lower side of the opening space S1, respectively. The opening upper wall 4a and the opening lower wall 4b correspond to the recessed upper wall 4a and the recessed lower wall 4b, respectively.

  The duct 12 continues to the opening forming part 4. The duct 12 includes a first wall 121 that is continuous with the upper opening wall 4 a and a second wall 122 that faces the first wall 121. Each of the first wall 121 and the second wall 122 has a portion extending downward toward the opening forming portion 4 from the front of the vehicle to the rear of the vehicle.

  The first wall 121 and the upper opening wall 4a have a guide surface 14 through which a high-speed air flow F1 flows along the wall surface. The guide surface 14 is a surface that bends upward toward the rear of the vehicle at a portion of the first wall 121 and the upper opening wall 4a that is closer to the rear of the vehicle than the airflow deflecting door 13. Other detailed details of the duct 12, the airflow deflecting door 13, and the guide surface 14 are as described above.

  When the air-conditioning control device selects the air outlet mode according to the cooling mode or the heating mode, the air outlet 11 having the above-described configuration uses the air outlet 11 in the air cooling mode.

  Further, the air blowing device 10 adjusts the door position of the airflow deflecting door 13 in the same manner as the air blowing device of Patent Document 1. In other words, the air blowing device 10 adjusts the direction of the door main body portion of the airflow deflection door 13. Furthermore, in other words, the air blowing device 10 adjusts the rotation angle of the door main body portion of the airflow deflection door 13. Thereby, the air blowing apparatus 10 adjusts the direction in the up-down direction of the airflow blown out from the blower outlet 11 toward the vehicle rear.

  For example, the air blowing device 10 sets the airflow deflecting door 13 to the position indicated by the solid line in FIG. That is, the door body portion of the airflow deflecting door 13 is tilted so that the cross-sectional area of the first flow path 12a decreases as the air flow direction proceeds. As a result, the cross-sectional area of the first flow path 12a is smaller than the cross-sectional area of the second flow path 12b, a high-speed air flow F1 is generated in the first flow path 12a, and a low-speed air flow F2 is generated in the second flow path 12b. Is in the first state.

  In this first state, the high-speed air flow F1 is bent by flowing along the guide surface 14 due to the Coanda effect, and the direction of the high-speed air flow F1 changes from the diagonally downward direction at the rear of the vehicle to the diagonally upward direction at the rear of the vehicle. . Furthermore, the low-speed air flow F2 is attracted to the high-speed air flow F2. In this way, the air flowing inside the duct 12 is bent along the guide surface 14. For this reason, the airflow from the blower outlet 11 can be directed diagonally upward behind the vehicle. At this time, the bending angle of the airflow from the outlet 11 can be increased by setting the position of the airflow deflecting door 13 at a position where the speed difference between the high-speed airflow F1 and the low-speed airflow F2 becomes large. On the other hand, by setting the position of the airflow deflection door 13 to a position where the speed difference between the high-speed airflow F1 and the low-speed airflow F2 becomes small, the bending angle of the airflow from the outlet 11 can be reduced.

  As a result, the direction of the airflow from the outlet 11 can be set to the direction indicated by the arrow F11, the arrow F12, the arrow F13, or the arrow F14 in FIG. The direction shown by arrow F11 is the direction toward the rear seat occupant. The direction indicated by the arrow F <b> 12 is a direction toward the face of the occupant 62 sitting on the passenger seat 61. The direction indicated by the arrow F13 is a direction toward the chest of the occupant 62. The direction indicated by F14 is the direction toward the pigeon tail of the occupant 62.

  Further, for example, the air blowing device 10 sets the air flow deflecting door 13 at a position indicated by a broken line in FIG. That is, the door main body portion of the airflow deflecting door 13 is made parallel to the first wall 121 and the second wall 122. Thereby, the speed of the air flow in the first flow path 12a and the speed of the air flow in the second flow path 12b are in the second state. In this case, since the direction of the airflow from the blowout port 11 is the direction along the first and second walls 121 and 122 of the duct 12 and the recessed lower wall 4b, the airflow from the blowout port 11 is obliquely below the rear of the vehicle. Can be directed to. Therefore, the direction of the airflow from the blower outlet 11 can be the direction toward the knee of the occupant 62 indicated by the arrow F15 in FIG. When air is blown toward the knee of the occupant 62, a low-speed air flow may be generated in the first flow path 12a and a high-speed air flow may be generated in the second flow path 12b.

  Next, the effect of this embodiment will be described.

  (1) As described above, in the conventional air blowing device disclosed in Patent Document 1, the air outlet is provided on the upper surface of the instrument panel. Since this blower outlet is larger than a general defroster blower outlet, there is a problem that the design of the instrument panel is deteriorated and the window reflection in the front window of the vehicle (that is, the windshield) is conspicuous. The loss of designability means, for example, that the appearance is poor or that the passenger is given a feeling of pressure.

  On the other hand, in the air blowing device 10 of this embodiment, the blower outlet 11 is provided in the inside of the recessed part 4 of the front part 1b. For this reason, since the blower outlet 11 is hard to see from a passenger | crew, the design property of the instrument panel 1 is not impaired. Moreover, since there is no blower outlet 11 in the upper surface part 1a, the window projection of the blower outlet 11 does not arise.

  (2) In the above-described conventional air blowing device, the air outlet is provided on the upper surface portion. Therefore, when air is blown from the air outlet toward the vehicle interior space (that is, the passenger compartment), The direction is a direction corresponding to the shape of the upper surface part, and it is difficult to blow air to the space below the upper surface part. In other words, when the upper surface portion has a shape that extends obliquely upward from the front of the vehicle to the rear, it is difficult to blow air below the chest of the passenger in the front seat.

  On the other hand, in the air blowing device 10 of this embodiment, the blower outlet 11 is provided not in the upper surface part 1a of the instrument panel 1 but in the front part 1b. For this reason, according to this embodiment, it can blow toward the passenger | crew from the blower outlet 11, without being influenced by the upper surface part 1a, and can blow on the passenger | crew's chest below.

  Furthermore, in the air blowing device 10 according to the present embodiment, as described above, the airflow deflecting door 13 and the guide surface 14 can blow the occupant's chest and the upper side of the chest. In particular, in the air blowing device 10 of the present embodiment, since the blown air from the air outlet 11 is directed obliquely upward at the rear of the vehicle, that is, from the bottom to the top, the formation of an air flow from the air outlet 11 to the rear seat is formed. Easy.

  If it demonstrates from another viewpoint, in the air blowing apparatus 10 of this embodiment, air will be blown off from the opening formation part 4 provided in the front part 1b instead of the upper surface part 1a. For this reason, it is possible to blow air from the opening formation part 4 toward the space below the upper surface part 1a in the vehicle interior space without being affected by the shape of the upper surface part 1a. Further, in the air blowing device 10 of the present embodiment, the air flow deflecting door 13 and the guide surface 14 can also blow air from the opening forming portion 4 to the space above the opening forming portion 4 in the vehicle interior space.

  Therefore, the air blowing device 10 according to the present embodiment has a wider range in the vertical direction in which air can be blown to the vehicle interior space than the above-described conventional air blowing device.

  (3) In the above-mentioned conventional air blowing device, since the blower outlet is provided in the upper surface part of the instrument panel and the blower outlet faces upward, there exists a problem that a foreign material tends to fall to a blower outlet. Also, as a countermeasure to this problem, if ribs or grids are provided to prevent the fall of foreign matter, pressure loss to the wind flow will occur, leading to a reduction in the volume of the blown air blown out from the outlet. End up.

  On the other hand, the air blowing device 10 of the present embodiment is provided with the air outlet 11 not in the upper surface portion 1a but in the concave portion 4 of the front surface portion 1b. Furthermore, the blower outlet 11 is opened downward. For this reason, it is possible to avoid the problem of foreign matter dropping and the problem of airflow reduction when ribs, lattices, or the like are provided.

  Further, the air outlet 11 opens downward, and the airflow deflecting door 13 is located above the air outlet 11. For this reason, since the airflow deflection door 13 inside the duct 12 is not seen by the occupant, the design of the instrument panel can be improved also by this.

  If it demonstrates from another viewpoint, in the air blowing apparatus 10 of this embodiment, each of the 1st wall 121 and the 2nd wall 122 is a part extended downward toward the opening formation part 4 from the vehicle front to a vehicle rear. have. That is, the duct 12 extends downward toward the opening forming portion 4 from the front of the vehicle to the rear of the vehicle. For this reason, the airflow deflection door 13 inside the duct 12 is not visible to the seated passenger. Also for this reason, the air blowing device 10 of the present embodiment does not impair the design of the instrument panel.

  (4) In the above-described conventional air blowing device, the air outlet is close to the vehicle front window (that is, the windshield). For this reason, the sticking phenomenon of the airflow from a blower outlet tends to occur. That is, the airflow is easily attracted to the window. Therefore, airflow control is difficult. Further, during cooling, the window in front of the vehicle is cooled by the cold air blown from the air outlet, and therefore, the outside fog is likely to occur when the humidity of the outside air is high.

  On the other hand, since the blower outlet 11 is away from the front window of the vehicle, the air blowing device 10 of the present embodiment can avoid the airflow sticking to the window and the occurrence of fogging outside the window.

  (5) According to the air blowing device 10 of the present embodiment, since the distance between the air outlet 11 and the front seat occupant is shorter than the above-described conventional air blowing device, the blowing air is directly passed to the occupant. Can reduce the energy loss. As a result, for example, energy loss is reduced during maximum cooling, and immediate cooling is possible.

(Second Embodiment)
The air blowing device according to the present embodiment is obtained by applying the air blowing device according to the present disclosure to the air outlet on the driver's seat side of the air conditioning unit for the front seat and a duct connected thereto.

  The air blowing device 20 of this embodiment is installed in the site | part by the side of the driver's seat of the front part 1b of the instrument panel 1 shown in FIG. An instrument panel 1 shown in FIG. 1 has a center meter layout, and a meter panel 5 including a speedometer and the like is located at the center in the vehicle left-right direction. Further, the portion on the driver's seat side of the front portion 1 b has a concave portion 7 that is recessed toward the front at a position on the front side of the steering wheel 6. The length of the recess 7 in the left-right direction of the vehicle is the same as or longer than the length of the driver's seat.

  As shown in FIG. 4, the air blowing device 20 of the present embodiment includes a blowout port 21, a duct 22, and an airflow deflection door 23. The blower outlet 21, the duct 22, and the airflow deflecting door 23 have the same functions as the blower outlet 11, the duct 12, and the airflow deflecting door 13 of the first embodiment, respectively.

  The air outlet 21 of the present embodiment is located inside the recess 7. The blower outlet 21 is an opening formed between the concave upper wall 7 a and the concave lower wall 7 b constituting the concave 7. The concave upper wall 7a and the concave lower wall 7b are an upper wall and a lower wall sandwiching the internal space of the concave part 7, respectively.

  The air outlet 21 is constituted by an end of the air flow downstream side of the duct 22. The duct 22 of this embodiment has a first wall 221 and a second wall 222. The first wall 221 is continuous with the concave upper wall 7a. The second wall 222 is continuous with the concave lower wall 7b. The first wall 221, the second wall 222, the first flow path 22a, and the second flow path 22b of the duct 22 are respectively a first wall 121, a second wall 122, and a second wall 122 of the duct 12 of the first embodiment. This is the same as the first flow path 12a and the second flow path 12b.

  The airflow deflection door 23 of the present embodiment is the same butterfly door as the airflow deflection door 13 of the first embodiment.

  The air blowing device 20 of the present embodiment has a guide surface 24 formed on a part of the concave upper wall 7a. The guide surface 24 is the same as the guide surface 14 of the first embodiment.

  If this embodiment is demonstrated from another viewpoint, the air blowing apparatus 20 of this embodiment is provided with the opening formation part 7, the duct 22, and the airflow deflection | deviation door 23, as shown in FIG.

  The opening formation part 7 is provided in the site | part by the side of the driver's seat of the front part 1b. The opening forming part 7 forms an opening space S2. The opening forming portion 7 corresponds to the concave portion 7 described above. The opening forming part 7 has an opening upper wall 7a and an opening lower wall 7b positioned on the upper side and the lower side of the opening space S2. The opening upper wall 7a and the opening lower wall 7b correspond to the recess upper wall 7a and the recess lower wall 7b, respectively.

  The duct 22 continues to the opening forming part 7. The duct 22 includes a first wall 221 that continues to the upper opening wall 7 a and a second wall 222 that faces the first wall 221. Each of the first wall 221 and the second wall 222 has a portion extending downward toward the opening forming portion 7 from the front of the vehicle to the rear of the vehicle.

  The first wall 221 and the upper opening wall 7a have a guide surface 24 through which a high-speed air flow F1 flows along the wall surface. The guide surface 24 is a surface that bends upward toward the rear of the vehicle at a portion of the first wall 221 and the upper opening wall 7a that is closer to the rear of the vehicle than the airflow deflecting door 23. Other detailed descriptions of the duct 22, the airflow deflecting door 23, and the guide surface 24 are as described above.

  The air blowing device 20 of this embodiment is equivalent to the air blowing device 10 of the first embodiment in which the installation location is changed from the passenger seat side to the driver seat side of the front portion 1b. Therefore, also in the air blowing device 20 of the present embodiment, as in the first embodiment, the direction of the airflow from the air outlet 11 is the direction toward the rear seat passenger, the face of the passenger sitting on the driver seat, It can be oriented towards the chest, pigeon tail, or knee.

  Moreover, since the air blowing apparatus 20 of this embodiment has the structure similar to the air blowing apparatus 10 of 1st Embodiment, there exists an effect similar to 1st Embodiment.

(Third embodiment)
The air blowing device according to the present embodiment is obtained by applying the air blowing device according to the present disclosure to the air outlet on the driver's seat side of the air conditioning unit for the front seat and a duct connected thereto.

  The air blowing device 30 of the present embodiment is installed on the driver's seat side of the front portion 1b of the instrument panel 1 shown in FIG. In the instrument panel 1 shown in FIG. 5, the meter panel 5 is located in a portion of the front portion 1 b that faces the driver's seat. As shown in FIG. 6, the steering column 91 is positioned below the meter panel 5 in front of the vehicle in the vehicle interior. A steering wheel 92 is provided at the vehicle rear side end portion of the steering column 91.

  As shown in FIGS. 5 and 6, the driver seat side portion of the front portion 1 b has a meter hood 8 that covers the upper side of the meter panel 5 in addition to the meter panel 5. The meter hood 8 is a protruding portion that protrudes (that is, protrudes) in the front portion 1b toward the rear of the vehicle. That is, the meter hood 8 protrudes to the vehicle rear side from the peripheral portion of the meter hood 8 such as a meter panel in the front portion 1b.

  The meter hood 8 has a rear tip 81 located on the most rear side of the vehicle, a meter hood upper surface 83 that is an upper end surface of the meter hood 8, and a meter hood lower surface 82 that is a lower end surface of the meter hood 8. . Both the meter hood upper surface 83 and the meter hood lower surface 82 extend from the rear end portion 81 toward the vehicle front side.

  As shown in FIG. 7, the air blowing device 30 of the present embodiment includes a blowout port 31, a duct 32, and an airflow deflection door 33. The blower outlet 31, the duct 32, and the airflow deflection door 33 have the same functions as the blower outlet 11, the duct 12, and the airflow deflection door 13 of the first embodiment, respectively.

  The air outlet 31 of the present embodiment is an opening formed in the meter hood lower surface 82. The blower outlet 31 is configured by an end of the duct 32 on the downstream side of the air flow.

  The duct 32 of the present embodiment includes a first wall 321 and a second wall 322 that faces the first wall 321 in the vehicle front-rear direction. Moreover, the duct 32 has the 1st flow path 32a and the 2nd flow path 32b. The first wall 321, the second wall 322, the first flow path 32 a, and the second flow path 32 b of the duct 32 are respectively the first wall 121, the second wall 122, and the second wall 122 of the duct 12 of the first embodiment. This is the same as the first flow path 12a and the second flow path 12b.

  In the present embodiment, the first wall 321 is continuous with the vehicle rear portion of the meter hood lower surface 82. More specifically, the first wall 321 is connected to the lower wall portion 35 constituting the vehicle rear portion of the meter hood lower surface 82 and is formed integrally with the lower wall portion 35. The lower wall portion 35 is formed separately from the meter hood 8.

  The second wall 322 is continuous with the vehicle front side portion of the meter hood lower surface 82. In addition, the 2nd wall 322 may be continued to the site | part below the meter hood lower surface 82, for example, the meter panel 5, among the front parts 1b.

  Also in this embodiment, the portion of the first wall 321 on the downstream end side of the air flow extends obliquely upward from the air outlet 31 toward the front. Similarly, the portion of the second wall 322 on the downstream end side of the air flow extends obliquely upward from the air outlet 31 toward the front. For this reason, the opening direction of the blower outlet 31 is diagonally downward toward the vehicle rear.

  The airflow deflection door 33 of the present embodiment is the same butterfly door as the airflow deflection door 13 of the first embodiment.

  The air blowing device 30 of this embodiment has a guide surface 34 formed on the first wall 321 and the lower wall portion 35. The guide surface 34 extends while bending upward toward the rear of the vehicle at a portion of the first wall 321 and the lower wall portion 35 on the rear side of the vehicle with respect to the airflow deflection door 33. The guide surface 34 has the same function as the guide surface 14 of the first embodiment. That is, the guide surface 34 guides the high-speed airflow F1 so that the direction of the high-speed airflow F1 bends upward when the airflow deflection door 33 is in the first state.

  If this embodiment is demonstrated from another viewpoint, the air blowing apparatus 30 of this embodiment is provided with the opening formation part 84, the duct 32, and the airflow deflection | deviation door 33, as shown in FIG.

  The opening forming portion 84 is provided on the meter hood lower surface 82 of the front portion 1b. The opening forming part 84 forms an opening space S3. The opening forming portion 84 is configured by an end portion on the downstream side of the air flow of the duct 32. The opening forming portion 84 has an opening upper wall 84a and an opening lower wall 84b that are located on the upper and lower sides of the opening space S3, respectively.

  The duct 32 continues to the opening forming portion 84. The duct 32 includes a first wall 321 that is continuous with the upper opening wall 84a, and a second wall 322 that faces the first wall 321. Each of the first wall 321 and the second wall 322 has a portion extending downward toward the opening forming portion 84 from the front of the vehicle to the rear of the vehicle.

  The first wall 321 and the upper opening wall 84a have a guide surface 34 through which a high-speed air flow F1 flows along the wall surface. The guide surface 34 is a surface that bends upward toward the rear of the vehicle at a portion of the first wall 321 and the upper opening wall 84a that is closer to the rear of the vehicle than the airflow deflecting door 33. The other detailed details of the duct 32, the airflow deflecting door 33 and the guide surface 34 are as described above.

  Thus, the air blowing device 30 of this embodiment has the same configuration as the air blowing device 10 of the first embodiment. Therefore, the air blowing device 30 of this embodiment adjusts the door position of the airflow deflecting door 33 in the same manner as the air blowing device 10 of the first embodiment. Thereby, the air blowing apparatus 30 of this embodiment can adjust the direction in the up-down direction of the airflow which blows off toward the vehicle rear from the blower outlet 31, as shown in FIG. That is, the direction of the airflow from the blowout port 31 can be set to the direction toward the rear seat occupant through the upper side of the steering wheel 92, as indicated by an arrow F21 in FIG. Further, the direction of the airflow from the air outlet 31 is set to the direction toward the face of the occupant 72 sitting on the driver's seat 71 through the upper side of the steering wheel 92, as indicated by an arrow F22 in FIG. it can. Moreover, the direction of the airflow from the blowout port 31 can be set to a direction toward the chest of the occupant 72 through the inside of the steering wheel 92, as indicated by an arrow F23 in FIG. Moreover, the direction of the airflow from the blowout port 31 can be set to a direction toward the pigeon tail of the occupant 72 through the inside of the steering wheel 92 as indicated by an arrow F24 in FIG.

  Next, the effect of this embodiment will be described.

  In the air blowing device 30 of the present embodiment, the air outlet 11 is provided in the meter hood lower surface 82. The meter hood lower surface 82 is a surface that is difficult for the occupant to see because the surface direction is downward. Further, as can be seen from FIG. 6, the line of sight from the driver 72 toward the meter hood lower surface 82 is blocked by the steering wheel 92. For this reason, since the blower outlet 31 is hard to see from a passenger | crew, there exists the effect of (1) of 1st Embodiment also in this embodiment.

  If it demonstrates from another viewpoint, in the air blowing apparatus 30 of this embodiment, each of the 1st wall 321 and the 2nd wall 322 is a part extended downward toward the opening formation part 84 from a vehicle front to a vehicle rear. have. That is, the duct 32 extends downward toward the opening forming portion 84 from the front of the vehicle to the rear of the vehicle. For this reason, the airflow deflection door 33 inside the duct 32 is difficult to see for the seated passenger. Also for this reason, the air blowing device 30 of the present embodiment does not impair the design of the instrument panel.

  Moreover, according to the air blowing apparatus 30 of this embodiment, since the blower outlet 31 is provided in the meter hood lower surface 82 of the front part 1b, there exists an effect of (2)-(5) of 1st Embodiment.

(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. The present disclosure also allows the following modifications and equivalent ranges of the above-described embodiments.

  (1) In 1st Embodiment, although the 1st wall 121 which comprises an air flow path, and the main body wall part 3a of the accessory case 3 were comprised by a separate wall, you may comprise by a common wall. That is, the first wall 121 and the concave upper wall 4a may be integrally formed.

  (2) In the third embodiment, the first wall 321 constituting the air flow path and the lower wall portion 35 constituting a part of the meter hood lower surface 82 are integrally formed. It may be formed. Moreover, in 3rd Embodiment, although the opening formation part 84 and the duct 32 want to be formed integrally, both may be formed as a different body.

  (3) In 3rd Embodiment, although the blower outlet 31 was provided in the lower surface of the meter hood 8 as a protrusion part, in the front part 1b other than a meter hood, a blower outlet is provided in the lower surface of a protrusion part which protrudes toward the vehicle rear. 31 may be provided.

  In the third embodiment, each of the first wall 321 and the second wall 322 extends downward from the front of the vehicle toward the rear of the vehicle toward the air outlet 31, but is not limited thereto. Portions on the air flow downstream end side of the first wall 321 and the second wall 322 may extend in the horizontal direction toward the outlet 31. Even in this case, the air outlet 31 is provided on the meter hood lower surface 82, thereby achieving the effect (1) of the first embodiment.

  (4) In each of the above embodiments, the butterfly door is adopted as the airflow deflecting door 13, but other doors such as a slide door may be adopted. When the sliding door is employed, the position of the air flow deflecting door 13 is set to a position where the cross-sectional area of the first flow path 12a is smaller than the cross-sectional area of the second flow path 12b. As a result, a high-speed air flow is generated in the first flow path 12a and a low-speed air flow is generated in the second flow path 12b.

  (5) The above-described embodiments are not irrelevant to each other, and can be appropriately combined 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 essential unless explicitly stated as essential and clearly considered essential in principle. Yes.

Claims (5)

An air blowing device for blowing out air;
In the front part (1b) of the instrument panel (1) in the passenger compartment, the recessed part constituting walls (4a, 4b, 7a, 7b) constituting the recessed part (4, 7) recessed toward the front of the vehicle,
An air outlet (11, 21) that opens in the recess-constituting wall and blows out air toward the rear of the vehicle;
A flow path forming portion (12, 22) for forming an air flow path connected to the air flow upstream side of the air outlet;
An airflow deflecting member (13, 23) provided in the air flow path and generating two airflows having different flow velocities in the air flow path;
The recess-constituting wall has a recess upper wall (4a, 7a) and a recess lower wall (4b, 7b) located on the upper side and the lower side across the internal space of the recess,
The flow path forming portion includes a first wall (121, 221) continuous with the upper wall of the recess, and a second wall (122, 222) facing the first wall,
In the air flow path, a first flow path (12a, 22a) is defined 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). 12b, 22b)
The airflow deflecting member adjusts the speed of the airflow in the first flow path and the speed of the airflow in the second flow path,
The first wall and the concave upper wall cause the air flow deflecting member to relatively generate a high-speed air flow (F1) in the first flow path and generate a low-speed air flow (F2) in the second flow path. The guide surface (14, 24) through which the high-speed airflow flows along the wall surface,
The guide surface has a direction of the high-speed airflow from the airflow deflecting member of the first wall and the concave upper wall so that the direction of the high-speed airflow is directed to a space above the concave portion in the vehicle interior space. An air blowing device that extends while turning upward at the rear side of the vehicle.   The air blowing device according to claim 1, wherein the concave portion (4) is provided in a portion of the front portion above the glove box (2).   3. The air blowing device according to claim 1, wherein each of the first wall and the second wall has a portion extending upward from the air outlet. An air blowing device for blowing out air;
In the front part (1b) of the instrument panel (1) in the passenger compartment, a wall part (35) constituting the lower surface (82) of the projecting part (8) projecting toward the rear of the vehicle,
An air outlet (31) that opens in the wall and blows out air toward the rear of the vehicle;
A flow path forming portion (32) for forming an air flow path connected to the air flow upstream side of the air outlet;
An air flow deflecting member (33) provided in the air flow path and generating two air flows having different flow velocities in the air flow path;
The flow path forming portion includes a first wall (321) continuous to the wall portion, and a second wall (322) facing the first wall,
In the air flow path, the first flow path (32a) is defined between the air flow deflecting member and the first wall, and the second flow path (32b) is defined between the air flow deflecting member and the second wall. When
The airflow deflecting member adjusts the speed of the airflow in the first flow path and the speed of the airflow in the second flow path,
The first wall and the wall portion cause the air flow deflecting member to relatively generate a high-speed air flow (F1) in the first flow path and generate a low-speed air flow (F2) in the second flow path. A guide surface (34) through which the high-speed airflow flows along the wall surface,
The guide surface has a direction of the high-speed airflow from the airflow deflecting member of the first wall and the wall portion so that the direction of the high-speed airflow is toward the space above the protruding portion in the vehicle interior space. An air blowing device that extends while turning upward at the rear side of the vehicle. An air blowing device for blowing out air;
An opening forming portion (4, 7, 84) provided in the front portion (1b) of the instrument panel (1) in the passenger compartment and forming an opening space (S1, S2, S3);
A flow path forming section (12, 22, 32) that is connected to the opening forming section and forms an air flow path therein;
An airflow deflecting member (13, 23, 33) provided in the air flow path and generating two airflows having different flow velocities in the air flow path;
The opening forming portion has an upper opening wall (4a, 7a, 84a) and an opening lower wall (4b, 7b, 84b) located on the upper side and the lower side across the opening space,
The flow path forming portion includes a first wall (121, 221 and 321) continuous with the upper wall of the opening and a second wall (122, 222 and 322) facing the first wall,
Each of the first wall and the second wall has a portion extending downward toward the opening forming portion from the front of the vehicle to the rear of the vehicle,
The air flow path includes a first flow path (12a, 22a, 32a) between the airflow deflecting member and the first wall, and a second flow between the airflow deflecting member and the second wall. Roads (12b, 22b, 32b),
The airflow deflecting member adjusts the speed of the airflow in the first flow path and the speed of the airflow in the second flow path,
The first wall and the upper wall of the opening cause the air flow deflecting member to generate an air flow (F1) at a higher speed than the air flow in the second flow path in the first flow path and the second flow path to the second flow path. A guide surface (14, 24, 34) through which the high-speed airflow flows along the wall surface when an airflow (F2) that is slower than the airflow of one flow path is generated;
The guide surface is an air blowing device in which a portion of the first wall and the upper opening wall that is bent upward toward the rear of the vehicle at a portion on the rear side of the airflow deflecting member.

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