WO2017221570A1

WO2017221570A1 - Air discharge device

Info

Publication number: WO2017221570A1
Application number: PCT/JP2017/017742
Authority: WO
Inventors: 赳之大槻; 康彦新美
Original assignee: 株式会社デンソー
Priority date: 2016-06-24
Filing date: 2017-05-10
Publication date: 2017-12-28
Also published as: JP2019142243A

Abstract

An air discharge device is provided with a discharge opening (11), a duct (12), an air flow forming section (13), and a hood (15). The discharge opening (11) is provided in the upper part of an instrument panel (1) and is open toward a windshield (4). The duct (12) has formed therein an air flow passage continuous with the upstream side of the discharge opening in the air flow direction. The duct (12) has: a front wall (121) located at the front, with respect to the vehicle, of the duct; and a rear wall (122) located behind, with respect to the vehicle, the front wall. A discharge opening-side part of the rear wall (122) constitutes a guide wall (17) shaped so as to approach the rear of the vehicle as the guide wall (17) extends upward of the vehicle. The air flow forming section (13) forms a predetermined air flow flowing along the guide wall (17). The hood (15) covers at least a part of the discharge opening. The food (15) is located between the discharge opening and the windshield in the vertical direction of the vehicle.

Description

Air blowing device

Cross-reference to related applications

This application is based on Japanese Patent Application No. 2016-125782 filed on June 24, 2016, the description of which is incorporated herein by reference.

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

Patent Document 1 discloses an air blowing device that blows out air toward an occupant from an air outlet provided on an upper surface portion of an instrument panel. Since the blower outlet is in the upper surface part, it opens toward the windshield. This conventional air blowing device includes a duct that internally forms an air flow path that is connected to the air flow upstream side of the air outlet. The duct has a rear wall located on the vehicle rear side and a front wall located on the vehicle front side. And a part on the outlet side of the rear wall constitutes a guide wall that guides the air flowing upward in the air flow path by bending it by the Coanda effect and blowing it out from the outlet toward the rear of the vehicle. ing. This conventional air blowing device can blow out air from the air outlet toward the occupant by the guide wall.

JP 2014-210564 A

However, the present inventor has found that the following two problems occur in the air blowing device described above.

The above-described air blowing device blows out a large amount of air from the outlet as compared with a conventional defroster outlet in order to realize a face mode that blows out air toward the passenger. Furthermore, the guide wall has a shape that is positioned rearward as it goes upward. For these reasons, the opening area of the air outlet is larger than that of the conventional defroster air outlet.

For this reason, it is easy for the passenger sitting in the front seat to see the air outlet directly. From this, the subject that the designability of an instrument panel deteriorates arises.

The conventional defroster outlet is provided near the front end of the instrument panel. For this reason, the place where the defroster outlet is reflected on the windshield is near the lower end of the windshield. On the other hand, the air outlet of the above-described air blowing device is installed on the vehicle rear side of the instrument panel from the vicinity of the front end. For this reason, the place where the air outlet is reflected on the windshield is above the lower end vicinity of the windshield. The range of the reflected location is wider than the conventional defroster outlet. As a result, the air outlet is reflected on the inner surface of the windshield, which causes a problem that the passenger seated in the front seat feels troublesome.

In addition, these subjects become remarkable when the fall prevention member which prevents the fall of the thing to a blower outlet internal space is installed in a blower outlet. That is, the fall prevention member has a member that partitions the space inside the air outlet into a plurality of spaces. The contrast between the member and the plurality of spaces is increased. For this reason, when a passenger | crew looks at an instrument panel, a blower outlet will be conspicuous. In addition, when the air outlet is reflected on the windshield, the air outlet becomes conspicuous. Incidentally, devices such as a head-up display installed on the upper surface of the instrument panel are devised to reduce the contrast. Thereby, the above-described problem does not occur.

This disclosure aims to provide an air blowing device that can improve the design of the instrument panel and suppress the annoyance caused by the reflection of the air outlet on the windshield.

According to one aspect of the present disclosure,
The air blowing device that blows air into the passenger compartment
An air outlet provided at the top of the instrument panel in front of the passenger compartment and opening toward the windshield;
A duct that internally forms an air flow path connected to the air flow upstream side of the air outlet;
An air flow forming part for forming a predetermined air flow in the air flow path;
A hood that covers at least a part of the air outlet,
The duct has a front wall located on the vehicle front side of the duct, and a rear wall located on the vehicle rear side relative to the front wall,
A part on the outlet side of the rear wall constitutes a guide wall having a shape located at the rear of the vehicle as it goes upwards of the vehicle,
The air flow forming unit forms a predetermined air flow along the guide wall,
The hood is located between the air outlet and the windshield in the vehicle vertical direction.

[According to this, the hood is located above the outlet. A hood covers at least part of the outlet. For this reason, it is difficult for the occupant to visually recognize the air outlet. Therefore, the designability of the instrument panel can be improved.

Furthermore, the hood is located between the air outlet and the windshield. For this reason, the reflection of the air outlet on the inner surface of the windshield can be suppressed. Therefore, the troublesomeness caused by the air outlet being reflected on the inner surface of the windshield can be suppressed.

It is a top view of the compartment where the air blowing device in a 1st embodiment is arranged. FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a sectional view taken along line III-III in FIG. It is sectional drawing of the vehicle interior containing the air blowing apparatus of the comparative example 1. It is sectional drawing of the vehicle interior containing the air blowing apparatus and seat of FIG. It is sectional drawing of the vehicle interior containing the air blowing apparatus and seat of 2nd Embodiment. It is sectional drawing of the vehicle interior containing the air blowing apparatus and seat of 3rd Embodiment. FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. It is sectional drawing of the air blowing apparatus of 4th Embodiment. FIG. 10 is a sectional view taken along line XX in FIG. 9. It is sectional drawing of the vehicle interior containing the air blowing apparatus and seat of 5th Embodiment. It is sectional drawing of the vehicle interior containing the air blowing apparatus and seat of 6th Embodiment. It is sectional drawing of the vehicle interior containing the air blowing apparatus and seat of 7th Embodiment. It is a top view of the compartment where the air blowing device in an 8th embodiment is arranged. It is sectional drawing of the air blowing apparatus of other embodiment. It is sectional drawing of the air blowing apparatus of other embodiment. It is XVII-XVII sectional drawing in FIG. It is sectional drawing of the air blowing apparatus of other embodiment. It is XIX-XIX sectional drawing in FIG. It is sectional drawing of the air blowing apparatus of other embodiment. FIG. 21 is a sectional view taken along line XXI-XXI in FIG. 20. It is sectional drawing of the air blowing apparatus of other embodiment. It is XXIII-XXIII sectional drawing in FIG.

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. The directions indicated by the up / down / left / right and front / rear arrows in each figure indicate the directions of the air blowing device mounted on the vehicle.

(First embodiment)
As shown in FIGS. 1, 2, and 3, the air blowing device 10 of the present embodiment is disposed on the front side of the vehicle interior of the vehicle. As shown in FIG. 2, the air blowing device 10 blows air from the air conditioning unit 16 disposed on the front side of the vehicle interior into the vehicle interior.

As shown in FIG. 1, an instrument panel 1, a seat (that is, a front seat) 2, and a steering wheel 3 are disposed on the front side of the vehicle interior.

The instrument panel 1 is an interior member that divides a vehicle interior space in which the seat 2 is disposed and an internal space of the instrument panel 1 in which the air conditioning unit is accommodated. The instrument panel 1 is disposed below the windshield 4 as shown in FIG.

As shown in FIG. 1, the seat 2 has a driver seat 2a and a passenger seat 2b. The driver's seat 2a is disposed on the right side toward the front. The passenger seat 2b is disposed on the left side toward the front. The steering wheel 3 is disposed in front of the driver's seat 2a so as to protrude from the instrument panel 1 toward the driver's seat 2a.

Further, as shown in FIG. 1, a defroster outlet 5, a center meter 6, and a center display 7 are provided in the center portion of the instrument panel 1 in the left-right direction. The defroster outlet 5 is disposed at the front end of the instrument panel 1. The center meter 6 is disposed behind the defroster outlet 5. The instrument panel 1 has a meter hood 1c. The meter hood 1c covers the upper side of the center meter 6. The center display 7 is disposed behind the center meter 6. The center display 7 displays a car navigation map and the like.

In addition, a head-up display 8 and an air outlet 11 are provided on the driver's seat 2a side of the instrument panel 1. The head-up display 8 is disposed at the front end of the instrument panel 1. The blower outlet 11 is arrange | positioned rather than the front edge part of the instrument panel 1 in the back side. A blower outlet 11 is also provided on the passenger seat 2 b side of the instrument panel 1. The air outlet 11 on the driver's seat 2a side constitutes an air blowing device 10 on the driver's seat side. The air outlet 11 on the passenger seat 2b side constitutes an air blowing device 10 on the passenger seat side. The air blowing device 10 on the driver's seat side and the air blowing device 10 on the passenger seat side have the same structure. Below, the air blowing apparatus 10 by the side of a driver's seat is demonstrated.

As shown in FIG. 2, the air blowing device 10 of the present embodiment includes an air outlet 11, a duct 12, an airflow deflecting member 13, a fall preventing member 14, and a hood 15.

The air outlet 11 is provided in the upper part of the instrument panel 1 as shown in FIGS. The blower outlet 11 is an opening that opens upward. In other words, the air outlet 11 opens toward the windshield 4 as shown in FIG. In this embodiment, the blower outlet 11 exists in the position of the same height as the uppermost part of the guide wall 17 mentioned later.

2 and 3, the duct 12 is a member that forms therein an air flow channel that is connected to the air flow upstream side of the air outlet 11. A portion of the duct 12 on the outlet 11 side extends upward. For this reason, the blower outlet 11 is opened toward the upper side.

As shown in FIG. 2, an air conditioning unit 16 is connected to the upstream side of the air flow of the duct 12. The air conditioning unit 16 is disposed inside the instrument panel 1. The air conditioning unit 16 is a device that sends air in which temperature, humidity, and the like are harmonized. For this reason, the air from the air conditioning unit 16 is guided to the air outlet 11 by the duct 12 and then blown out from the air outlet 11.

As shown in FIG. 2, the duct 12 includes a front wall 121 located on the front side of the duct 12 and a rear wall 122 located on the rear side of the front wall 121. A part of the rear wall 122 on the outlet 11 side constitutes a guide wall 17. The guide wall 17 has a curved shape so as to be positioned at the rear of the vehicle as it goes upward.

The airflow deflecting member 13 is disposed in the middle of the air flow path. The airflow deflecting member 13 is a member that changes the traveling direction of the airflow inside the duct 12. The airflow deflecting member 13 forms an air flow along the guide wall 17. In the present embodiment, the airflow deflecting member 13 corresponds to an airflow forming unit that forms a predetermined air flow in the air flow path and an airflow forming member that is disposed in the middle of the air flow path.

The airflow deflecting member 13 forms a first flow path 12 a between the airflow deflecting member 13 and the rear wall 122. The airflow deflecting member 13 forms a second flow path 12 b between the airflow deflecting member 13 and the front wall 121. The air flow deflecting member 13 makes the flow path cross-sectional area of the first flow path 12a smaller than the flow path cross-sectional area of the second flow path 12b. As a result, the airflow deflecting member 13 forms an airflow F1 in the first flow path 12a that is faster than the airflow F2 flowing through the second flow path 12b. The airflow deflecting member 13 forms an airflow F2 in the second flow path 12b that is slower than the airflow F1 flowing through the first flow path 12a.

In this embodiment, a butterfly door 131 is used as the airflow deflecting member 13. As shown in FIGS. 2 and 3, the butterfly door 131 includes a plate-like door main body 132 and a rotation shaft 133 provided at the center of the door main body 132. The rotating shaft 133 is arranged in parallel with the longitudinal direction (that is, the left-right direction) of the air outlet 11. For this reason, the butterfly door 131 rotates about the longitudinal direction of the blower outlet 11 as an axis.

The fall prevention member 14 is installed at the air outlet 11 as shown in FIGS. The fall prevention member 14 prevents an object from falling into the duct 12. In the present embodiment, a lattice member 141 is used as the fall prevention member 14.

The lattice member 141 includes a plurality of first members 142 extending in one direction and a plurality of second members 143 extending in a direction crossing the one direction. In the present embodiment, the plurality of first members 142 extend in the front-rear direction. The plurality of second members 143 extend in the left-right direction. The plurality of first members 142 are disposed with a gap between the adjacent first members 142. The plurality of second members 143 are arranged with a gap between the adjacent second members 143.

Note that a lattice-like member having only one of the plurality of first members 142 and the plurality of second members 143 may be used as the fall prevention member 14.

The hood 15 is disposed between the air outlet 11 and the windshield 4 in the vertical direction, as shown in FIG. The hood 15 covers the entire outlet 11 (that is, the fall prevention member 14). Therefore, when the fall prevention member 14 is projected right above, the entire fall prevention member 14 overlaps with the hood 15. The hood 15 is connected to a wall 18 extending upward from the front end of the air outlet 11. The hood 15 is connected to the front wall 121 via the wall 18.

1 and 2, the instrument panel 1 includes an upper step 1a including a meter hood 1c and a lower step 1b located rearward and lower than the upper step 1a. The hood 15 is connected to the upper stage 1a. In other words, the hood 15 constitutes a part of the meter hood 1c. The guide wall 17 is connected to the lower step portion 1b. In other words, the blower outlet 11 is provided in the lower stage part 1b.

The air blowing device 10 having such a configuration blows air from the air conditioning unit 16 toward the seat 2 as follows. As shown in FIG. 2, the door main body portion 132 of the airflow deflecting member 13 is inclined so that the distance between the door main body portion 132 and the rear wall 122 decreases as the distance increases. Thereby, the cross-sectional area of the 1st flow path 12a becomes smaller than the cross-sectional area of the 2nd flow path 12b. As a result, a high-speed air flow F1 is formed in the first flow path 12a. A low-speed air flow F2 is formed in the second flow path 12b.

High-speed air flow F1 flows along the guide wall 17 due to the Coanda effect. The low-speed air flow F2 is drawn into the high-speed air flow F1 by the Coanda effect. As a result, the air flowing upward in the duct 12 is bent backward. Air F3 is blown out from the air outlet 11 toward the front seat 2 side.

At this time, in this embodiment, by changing the direction of the airflow deflecting member 13, the speeds of the airflow passing through the first flow path 12a and the airflow passing through the second flow path 12b can be changed. . Thereby, the blowing direction of the air F3 from the blower outlet 11 can be changed in the up-down direction.

Next, the air blowing device 10 of the present embodiment is compared with the air blowing device J10 of Comparative Example 1 shown in FIG. The air blowing device J10 of Comparative Example 1 is different from the air blowing device 10 of the present embodiment in that the hood 15 is not provided. The other structure of the air blowing device J10 of the comparative example 1 is the same as the air blowing device 10 of 1st Embodiment.

In the comparative example 1, the blower outlet 11 is provided in the upper surface part of the instrument panel 1. FIG. The blower outlet 11 opens toward the windshield 4. The opening area of the blower outlet 11 is larger than the opening area of the defroster blower outlet 5. For this reason, the air outlet 11 is easily visually recognized by the passenger 20 seated in the front seat 2.

Furthermore, the reflected light from the air outlet 11 is reflected by the windshield 4 and reaches the eyes of the occupant 20. Thereby, the blower outlet 11 is reflected on the windshield 4. The reflected light from the air outlet 11 is the light reflected by the air outlet 11 such as sunlight. At this time, a range R1 in which the air outlet 11 in the windshield 4 is reflected is near the center of the windshield 4 in the vertical direction. The range in which the air outlet 11 is reflected is wider than the defroster air outlet 5. As a result, the air outlet 11 is reflected on the inner surface of the windshield 4 so that the passenger 20 seated in the front seat 2 feels troublesome.

Particularly, when the fall prevention member 14 is installed, the fall prevention member 14 has a large difference in brightness between the

members

142 and 143 and the space, that is, the contrast is strong. For this reason, the fall prevention member 14 reflected on the windshield 4 becomes conspicuous. Therefore, the occupant 20 feels more troublesome.

On the other hand, in the present embodiment, the hood 15 is located above the air outlet 11. A hood 15 covers the air outlet 11. Thereby, it becomes difficult for the passenger 11 to visually recognize the air outlet 11 directly. Therefore, the designability of the instrument panel can be improved.

Furthermore, the hood 15 is located between the air outlet 11 and the windshield 4. Thereby, the reflection of the blower outlet 11 to the inner surface of the windshield 4 can be suppressed.

Here, in the cross section of the passenger compartment shown in FIG. 5, the light from the front end 14 a of the fall prevention member 14 is reflected by the reflection point RP <b> 1 of the windshield 4 and reaches the uppermost portion 21 a of the back surface portion 21 of the front seat 2. Then, the path of light when it is assumed is assumed to be the front end virtual line VL1. The light path when it is assumed that the light from the rear end 14b of the fall prevention member 14 is reflected by the reflection point RP2 of the windshield 4 and reaches the uppermost portion 21a is defined as a rear end virtual line VL2.

The cross section of the passenger compartment shown in FIG. 5 is a cross section parallel to the front-rear direction and the vertical direction of the passenger compartment passing through the air outlet 11 and the front seat 2. The back portion 21 here does not include a headrest. The position of the uppermost part 21a is a position when the front seat 2 is in the standard state. When the front seat 2 is in the standard state, the front seat 2 is placed in the vehicle interior, and the position of the front seat 2 is within the range that the front seat 2 can take in the vehicle interior. It means the position, which is the center position in the vertical direction. Further, when the front seat 2 is in the standard state, it means that the reclining angle of the front seat 2 is an angle at which the uppermost portion 21a is the highest position among the adjustable range of angles.

The reflection points RP1 and RP2 are points where the incident angle and the reflection angle of light with respect to the windshield 4 are the same. The reflection points RP1 and RP2 are intersections between the windshield 4 and a line connecting the predetermined positions V14a and V14b of the virtual fall prevention member V14 and the uppermost portion 21a with a straight line. The virtual fall prevention member V14 is a virtual fall prevention member 14 in which the fall prevention members 14 are arranged symmetrically with the windshield 4 as the axis of symmetry.

In the present embodiment, as shown in FIG. 5, the hood 15 has a portion 15a extending from the predetermined point P1 within the predetermined range VL1a of the front end virtual line VL1 toward the rear side. The predetermined range VL1a of the front end virtual line VL1 is a range from the fall prevention member 14 to the reflection point RP1. Furthermore, the rear end 15b of the hood 15 is located on the rear side of the predetermined range VL2a of the rear end virtual line VL2. The predetermined range VL2a of the rear end virtual line VL2 is a range from the fall prevention member 14 to the reflection point RP2. The rear end 15b of the hood 15 is the end located at the rearmost and uppermost position in the hood 15.

Thus, when it is assumed that the uppermost portion 21a is the eye position of the occupant 20, the hood 15 is reflected on the inner surface of the windshield 4 without the entire fall prevention member 14 being reflected. That is, the entire reflection of the fall prevention member 14 on the windshield 4 can be prevented. At this time, it is considered that the occupant 20 is looking at the virtual hood V15. The virtual hood V15 is a virtual hood 15 in which the hood 15 is arranged symmetrically with the windshield 4 as an axis of symmetry.

The uppermost part 21a is a position close to the position of the eyes of a general occupant 20. Therefore, when the occupant 20 seated in the front seat 2 looks at the windshield 4, it can be suppressed that most of the air outlet 11 is reflected in the windshield 4. The majority of the air outlet 11 is a portion that occupies an area that is more than half of the opening area of the air outlet 11.

Therefore, according to this embodiment, the troublesomeness caused by the air outlet 11 being reflected on the inner surface of the windshield 4 can be suppressed.

In the present embodiment, the rear end 15b of the hood 15 is located behind the predetermined range VL2a of the rear end virtual line VL2, but is positioned on the predetermined range VL2a of the rear end virtual line VL2. Also good.

(Second Embodiment)
As shown in FIG. 6, this embodiment differs in the length of the food | hood 15 with respect to 1st Embodiment. The other structure of the air blowing apparatus 10 is the same as 1st Embodiment.

In the present embodiment, the rear end 15b of the hood 15 is located on the front side of the predetermined range VL2a of the rear end virtual line VL2. Also in the present embodiment, as in the first embodiment, the hood 15 has a portion 15a extending from the predetermined point P1 within the predetermined range VL1a of the front imaginary line VL1 toward the rear side. Thereby, when it is assumed that the uppermost portion 21 a is the eye position of the occupant 20, it is possible to prevent a part of the fall prevention member 14 from being reflected on the windshield 4. That is, the range R2 in which the air outlet 11 in the windshield 4 is reflected can be made smaller than the range R1 in the first comparative example. For this reason, also by this embodiment, the troublesomeness by which the blower outlet 11 reflects in the inner surface of the windshield 4 can be suppressed.

Furthermore, in this embodiment, the rear end 15b of the hood 15 is located on the ceiling virtual line VL3. The ceiling imaginary line VL3 includes a portion 32 that is the same position in the front-rear direction as the center position C1 in the front-rear direction of the seat surface portion 22 of the front seat 2, and the front end 14a of the fall prevention member 14. Is an imaginary line that connects The front seat 2 at this time is in the standard state described above.

According to the present embodiment, when air is blown out from the air outlet 11 toward the head of the occupant 20 seated in the front seat 2, the hood 15 inhibits the air flow from the air outlet 11 toward the head of the occupant 20. Can be avoided. Therefore, by adjusting the angle of the airflow deflecting member 13, the air blowing direction from the air outlet 11 can be adjusted within a wide range from the upper body of the occupant 20 to the head of the occupant 20.

In addition, the rear end 15b of the hood 15 may be located on the front side of the ceiling virtual line VL3. Even in this case, the same effect as the present embodiment can be obtained.

(Third embodiment)
As shown in FIG. 7, the present embodiment is different from the first embodiment in that an opening 51 is provided in the hood 15. The opening 51 is disposed at a position ahead of the center position C <b> 2 in the front-rear direction of the air outlet 11 in the hood 15. A defroster guide wall 52 for guiding air to the opening 51 is disposed between the hood 15 and the air outlet 11. The guide wall 52 extends downward from a position behind the opening 51 in the hood 15. As shown in FIG. 8, the guide wall 52 extends in the left-right direction. The other structure of the air blowing apparatus 10 is the same as 1st Embodiment.

In the present embodiment, the door main body portion 132 of the airflow deflecting member 13 is inclined so that the distance between the door main body portion 132 and the front wall 121 decreases as the distance increases. Thereby, the air F4 can be blown out from the blower outlet 11 toward the front seat 2 side. Furthermore, the air F <b> 5 can be blown out from the opening 51 toward the windshield 4. That is, the defroster mode can be realized.

Furthermore, in the present embodiment, the opening 51 is disposed on the front side of the predetermined range VL1a of the front end virtual line VL1. Thereby, even if it provides the opening part 51, the reflection of the fall prevention member 14 to the inner surface of the windshield 4 can be suppressed.

(Fourth embodiment)
As shown in FIG. 9, the present embodiment is different from the first embodiment in that a plurality of protrusions 61 are provided on the lower surface 15 c of the hood 15. The other structure of the air blowing apparatus 10 is the same as 1st Embodiment.

Each of the plurality of protruding portions 61 protrudes from the lower surface 15 c toward the space below the hood 15. The lower surface 15 c is a wall surface on the air outlet 11 side of the hood 15. Each of the plurality of protrusions 61 extends in parallel to the vertical direction. Each of the plurality of projecting portions 61 is located in the space above the air outlet 11. Each of the plurality of projecting portions 61 is disposed with a space in the front-rear direction. Each of the plurality of projecting portions 61 has a shorter projecting length from the lower surface 15c as it is located on the rear side. As shown in FIG. 10, each of the plurality of protruding portions 61 extends in a plate shape in the left-right direction.

Unlike the present embodiment, when a plurality of protrusions 61 are not provided and the hood height, which is the height from the air outlet 11 of the hood 15, is low, an attached vortex is formed on the lower surface 15c. For this reason, the airflow from the blower outlet 11 adheres to the lower surface 15c. As a result, even if the direction of the airflow deflecting member 13 is changed, the blowing direction of the air F3 from the blowout port 11 cannot be adjusted in the vertical direction. Therefore, in this case, the height of the hood must be increased to enable adjustment in the vertical direction of the blowing direction. However, when the height of the hood is increased, the design of the instrument panel 1 is deteriorated.

On the other hand, according to the present embodiment, the plurality of protrusions 61 can eliminate or reduce the adhesion vortex formed on the lower surface 15c. Thereby, adhesion to the lower surface 15c of the airflow from the blower outlet 11 can be suppressed. For this reason, according to this embodiment, compared with the case where the some protrusion part 61 is not provided, hood height can be made low. Therefore, the designability of the instrument panel 1 can be improved.

(Fifth embodiment)
As shown in FIG. 11, this embodiment is different from the first embodiment in that the fall prevention member 14 is not installed at the air outlet 11. The other structure of the air blowing apparatus 10 is the same as 1st Embodiment. Therefore, the present embodiment can provide the same effects as those of the first embodiment.

Here, in the cross section of the passenger compartment shown in FIG. 11, when light from the predetermined portion 121a of the front wall 121 is reflected by the reflection point RP3 of the windshield 4 and reaches the uppermost portion 21a of the back surface portion 21 of the front seat 2. The assumed light path is a front wall imaginary line VL4. The predetermined portion 121a of the front wall 121 is a portion of the front wall 121 that is at the same position in the vertical direction as the uppermost position within the movement range of the airflow deflecting member 13. The light path when it is assumed that light from the predetermined portion 122a of the rear wall 122 is reflected by the reflection point RP4 of the windshield 4 and reaches the uppermost portion 21a is defined as a rear wall virtual line VL5. The predetermined portion 122a of the rear wall 122 is a portion of the rear wall 122 that is at the same position in the vertical direction as the uppermost position within the movement range of the airflow deflecting member 13.

The cross section of the passenger compartment shown in FIG. 11 is the same as that of the passenger compartment shown in FIG. The position of the uppermost part 21a is a position when the front seat 2 is in the standard state. The reflection point RP3 is an intersection of the windshield 4 and a line connecting the predetermined portion V121a of the virtual front wall V121 and the uppermost portion 21a with a straight line. The reflection point RP4 is an intersection of the windshield 4 and a line connecting the predetermined portion V122a of the virtual rear wall V122 and the uppermost portion 21a with a straight line. The virtual front wall V121 and the virtual rear wall V122 are a virtual front wall 121 and a rear wall 122 in which the front wall 121 and the rear wall 122 are arranged symmetrically with the windshield 4 as the axis of symmetry. The predetermined portion V121a of the virtual front wall V121 corresponds to the predetermined portion 121a of the front wall V121. The predetermined portion V122a of the virtual rear wall V122 corresponds to the predetermined portion V122a of the rear wall V122.

In the present embodiment, as shown in FIG. 11, the hood 15 has a portion 15d that extends rearward from a predetermined point P2 within a predetermined range VL4a of the front wall virtual line VL4. The predetermined range VL4a of the front wall imaginary line VL4 is a range from the front wall 121 to the reflection point RP3. Furthermore, the rear end 15b of the hood 15 is located on the rear side of the predetermined range VL5a of the rear wall virtual line VL5. The predetermined range VL5a of the rear wall imaginary line VL5 is a range from the rear wall 122 to the reflection point RP4.

Thus, when it is assumed that the uppermost portion 21 a is the eye position of the occupant 20, it is possible to prevent the entire area between the predetermined portion 121 a of the front wall 121 and the predetermined portion 122 a of the rear wall 122 from being reflected on the windshield 4. A region between the predetermined portion 121a of the front wall 121 and the predetermined portion 122a of the rear wall 122 is a region in the vicinity of the air outlet 11.

(Sixth embodiment)
As shown in FIG. 12, this embodiment differs in the length of the food | hood 15 with respect to 5th Embodiment. The other structure of the air blowing apparatus 10 is the same as 5th Embodiment.

In the present embodiment, the rear end 15b of the hood 15 is located on the front side of the predetermined range VL5a of the rear wall virtual line VL5. Also in the present embodiment, as in the fifth embodiment, the hood 15 has a portion 15d that extends rearward from the predetermined point P2 within the predetermined range VL4a of the front wall virtual line VL4. As a result, when the uppermost portion 21a is assumed to be the position of the occupant 20's eyes, a portion of the area between the predetermined portion 121a of the front wall 121 and the predetermined portion 122a of the rear wall 122 is prevented from being reflected on the windshield 4. it can.

Furthermore, in the present embodiment, the rear end 15b of the hood 15 is located on the front side of the ceiling virtual line VL6. The ceiling imaginary line VL6 connects, in a straight line, a portion 32 of the ceiling 31 of the passenger compartment that is the same position in the front-rear direction as the center position C1 of the seat surface portion 22 of the front seat 2 and the predetermined portion 121a of the front wall 121. It is a virtual line. The front seat 2 at this time is in the standard state described above.

According to this embodiment, the same effect as the second embodiment can be obtained. Note that the rear end 15b of the hood 15 may be located on the ceiling virtual line VL6.

(Seventh embodiment)
As shown in FIG. 13, the present embodiment is different from the fifth embodiment in that a guide wall 52 is disposed between the hood 15 and the outlet 11, and the hood 15 is provided with an opening 51. Is different. The other structure of the other air blowing apparatus 10 is the same as 5th Embodiment.

The opening 51 and the guide wall 52 are the same as the opening 51 and the guide wall 52 of the third embodiment. In the present embodiment, the opening 51 is disposed on the front side of the predetermined range VL4a of the front wall imaginary line VL4. According to this embodiment, the same effect as the third embodiment can be obtained.

(Eighth embodiment)
As shown in FIG. 14, in the present embodiment, two driver seat side air blowing devices 10 are installed on the driver seat 2 a side of the instrument panel 1.

In this embodiment, a meter 9 is provided on the driver's seat 2a side of the instrument panel 1. The instrument panel 1 has a meter hood 1d only in the driver seat side region of the driver seat side region and the passenger seat side region of the instrument panel 1. The instrument panel 1 has a display hood 1 e that covers the upper side of the center display 7. The display hood 1e is disposed over both sides of the driver seat side region and the passenger seat side region of the instrument panel 1.

One air outlet 11 of the two air blowing devices 10 is disposed on the front side of the meter hood 1d and on the vehicle center side in the left-right direction of the meter hood 1d. Therefore, one blower outlet 11 constitutes a center face blower outlet.

The other air outlet 11 of the two air blowing devices 10 is disposed on the vehicle front side in front of the meter hood 1d and in the left-right direction with respect to the meter hood 1d. Therefore, the other blower outlet 11 comprises the side face blower outlet.

In each of the two air blowing devices 10, the configuration other than the shape and arrangement of the blowout port 11 is the same as in the first embodiment. In each of the two air blowing devices 10, the hood 15 constitutes a part of the display hood 1e. Also in this embodiment, the same effect as the first embodiment can be obtained.

(Other embodiments)
(1) In each of the above embodiments, the shape of the hood 15 is a flat plate shape, but is not limited thereto. The shape of the hood 15 may be another shape as long as reflection of the air outlet 11 on the windshield 4 can be suppressed and a passage of airflow from the air outlet 11 can be secured. That is, as long as the hood 15 is positioned between the air outlet 11 and the windshield 4 in the vertical direction, the shape of the hood 15 may be another shape.

For example, as shown in FIG. 15, the shape of the hood 15 may be a curved shape. In the air blowing device 10 shown in FIG. 15, the hood 15 extends rearward and upward from the front end of the air outlet 11. The hood 15 may extend from a part of the instrument panel 1 on the front side of the air outlet 11.

(2) In the fourth embodiment, each of the plurality of projecting portions 61 extends in parallel to the vertical direction, but is not limited thereto. Each of the plurality of protruding portions 61 may extend in a direction other than the vertical direction as long as it protrudes toward the space below the hood 15.

For example, as shown in FIGS. 16 and 17, each of the plurality of protrusions 61 may extend from the lower surface 15 c of the hood 15 in an oblique direction with respect to the vertical direction. As shown in FIGS. 18 and 19, each of the plurality of projecting portions 61 may extend in the horizontal direction from the wall surface on the outlet 11 side of the wall 18 connected to the hood 15. In this case, each of the plurality of protruding portions 61 has a longer protruding length from the wall 18 as it is located on the upper side.

Thus, each of the plurality of projecting portions 61 may be provided on any one of the wall surface on the air outlet 11 side of the hood 15 and the wall surface on the air outlet 11 side of the wall 18 connected to the hood 15. Moreover, the number of the protrusion parts 61 may be one. Even in these cases, the same effect as the fourth embodiment can be obtained.

20 and 21, a plurality of protrusions 61 may be provided in the air blowing device 10 of the third embodiment. In this case, some of the plurality of protrusions 61 may function as the guide wall 52. In the example shown in FIGS. 20 and 21, each of the plurality of protrusions 61 extends in parallel to the vertical direction. Even when a part of the plurality of protrusions 61 functions as the guide wall 52, each of the plurality of protrusions 61 may extend in a direction other than the vertical direction. For example, as shown in FIGS. 22 and 23, each of the plurality of protrusions 61 may extend from the lower surface 15 c of the hood 15 in an oblique direction with respect to the vertical direction.

Further, in the air blowing device 10 of the fifth to seventh embodiments, one or more protrusions 61 may be provided. Even in this case, the same effect as the fourth embodiment can be obtained.

(3) In each of the above-described embodiments, the shape of the guide wall 17 is a curved shape, but is not limited thereto. The shape of the guide wall 17 may be any shape that allows the airflow inside the duct 12 to follow the wall surface due to the Coanda effect. That is, the shape of the guide wall 17 only needs to be a shape that is positioned toward the rear of the vehicle as it goes upward. For example, the shape of the guide wall 17 may be a flat shape with a flat wall surface. The shape of the guide wall 17 may be a staircase shape in which the wall surface has a stepped portion. In addition, the curved shape here means a gentle curved surface shape with no corners on the surface. The staircase shape means a shape in which a flat surface is bent and has corners.

(4) In the first embodiment and the like, the airflow deflecting member 13 can be changed in direction, but is not limited thereto. The airflow deflecting member 13 may be fixed in a direction that forms an air flow along the guide wall 17.

(5) In each of the above embodiments, the butterfly door 131 is employed as the airflow deflecting member 13, but other doors such as a slide door may be employed.

(6) In each embodiment described above, the air blowing direction is adjusted by the airflow deflecting member 13, but the present invention is not limited to this. You may adjust the blowing direction of the air from the blower outlet 11 by airflow formation parts other than the airflow deflection member 13. FIG. As another airflow forming unit, for example, as described in Japanese Utility Model Publication No. 1-273737, a nozzle that forms a high-speed airflow and a control flow that blows out a control flow for drawing the high-speed airflow from the nozzle to one side A thing provided with a blowing part is mentioned. In this case, a high-speed airflow from the nozzle is drawn toward the rear wall 122 by the control flow outlet. Thereby, an air flow along the guide wall 17 is formed. In addition, the control flow blowing unit brings the high-speed airflow from the nozzle closer to or away from the rear wall 122. Thereby, the blowing direction of the air from the blower outlet 11 can be adjusted.

(7) The present disclosure is not limited to the above-described embodiment, and can be appropriately changed within the scope described in the claims, and includes various modifications and modifications within the equivalent range. In addition, the above 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. Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case. In each of the above embodiments, when referring to the material, shape, positional relationship, etc. of the constituent elements, etc., unless otherwise specified, or in principle limited to a specific material, shape, positional relationship, etc. The material, shape, positional relationship, etc. are not limited.

(Summary)
According to the 1st viewpoint shown by one part or all part of said each embodiment, an air blowing apparatus is provided with a blower outlet, a duct, an airflow formation part, and the hood which covers at least one part of a blower outlet. . A blower outlet is provided in the upper part of an instrument panel, and opens toward a windshield. The hood is located between the air outlet and the windshield in the vehicle vertical direction.

Further, according to the second aspect, the airflow forming part is an airflow forming member arranged in the middle of the air flow path. The air flow forming member forms a first flow path between the air flow forming member and the rear wall, and forms a second flow path between the air flow forming member and the front wall. The airflow forming member forms an airflow at a higher speed than the airflow flowing in the second flow path in the first flow path by making the flow path cross-sectional area of the first flow path smaller than the flow path cross-sectional area of the second flow path. To do. Specifically, this air flow forming member can be employed as the air flow forming unit.

Further, according to the third aspect, the air blowing device further includes a fall preventing member that is installed at the blowout port and prevents the object from falling into the duct. The hood has at least a portion extending toward a vehicle rear side from a predetermined point within a predetermined range from the fall prevention member of the front end imaginary line to the reflection point.

Specifically, the hood is preferably arranged in this way. Thereby, it is possible to prevent a part of the air outlet from being reflected on the inner surface of the windshield when viewed from the passenger seated in the front seat.

Further, according to the fourth aspect, the vehicle rear end of the hood is located within a predetermined range from the falling prevention member of the rear end virtual line to the reflection point or on the vehicle rear side from the predetermined range. Specifically, the hood is preferably arranged in this way. As a result, most of the air outlets can be prevented from being reflected on the inner surface of the windshield as viewed from the passenger seated in the front seat.

Further, according to the fifth aspect, the vehicle rear end of the hood is positioned on the ceiling imaginary line or on the vehicle front side of the ceiling imaginary line. Specifically, the hood is preferably arranged in this way. Accordingly, when air is blown out from the air outlet toward the head of the occupant seated in the front seat, the hood can be prevented from inhibiting the air flow from the air outlet toward the occupant's head.

Further, according to the sixth aspect, the hood has at least a portion extending from a predetermined point within a predetermined range from the front wall of the front wall imaginary line to the reflection point toward the vehicle rear side. Specifically, the hood is preferably arranged in this way. Thereby, it is possible to prevent a part of the air outlet from being reflected on the inner surface of the windshield when viewed from the passenger seated in the front seat.

Further, according to the seventh aspect, the vehicle rear end of the hood is located within a predetermined range from the rear wall of the rear wall imaginary line to the reflection point or on the vehicle rear side from the predetermined range. Specifically, the hood is preferably arranged in this way. As a result, most of the air outlets can be prevented from being reflected on the inner surface of the windshield as viewed from the passenger seated in the front seat.

Further, according to the eighth aspect, the vehicle rear end of the hood is located on the ceiling imaginary line or on the vehicle front side of the ceiling imaginary line. Specifically, the hood is preferably arranged in this way. Accordingly, when air is blown out from the air outlet toward the head of the occupant seated in the front seat, the hood can be prevented from inhibiting the air flow from the air outlet toward the occupant's head.

Further, according to the ninth aspect, the hood is provided with an opening on the front side of the vehicle from the center position in the vehicle front-rear direction in the air outlet. According to this, air can be blown out toward the windshield from the opening.

Further, according to the tenth aspect, in the third to fifth aspects, the hood is provided with an opening on the front side of the vehicle with respect to a predetermined range of the front imaginary line. According to this, air can be blown out toward the windshield from the opening. Furthermore, even if this opening is provided, the reflection of the air outlet on the inner surface of the windshield can be suppressed.

Further, according to the eleventh aspect, in the sixth to eighth aspects, the hood is provided with an opening on the vehicle front side with respect to the predetermined range of the front wall imaginary line. According to this, air can be blown out toward the windshield from the opening. Furthermore, even if this opening is provided, the reflection of the air outlet on the inner surface of the windshield can be suppressed.

Further, according to the twelfth aspect, the air blowing device further includes one or more protrusions. The one or more protrusions are provided on any one of the wall surface on the air outlet side of the hood and the wall surface on the air outlet side of the wall connected to the hood. The one or more protrusions protrude from one of the wall surfaces toward the space under the vehicle of the hood. According to this, the adhering vortex formed on the wall surface of the hood on the outlet side can be eliminated or reduced by the plurality of protrusions. Thereby, adhesion to the wall surface by the side of the blower outlet of the food | hood of the airflow from a blower outlet can be suppressed.

Claims

An air blowing device that blows air into the passenger compartment,
An air outlet (11) provided at an upper part of the instrument panel (1) in front of the passenger compartment and opening toward the windshield (4);
A duct (12) that forms an air flow path inside the air outlet upstream of the air outlet;
An air flow forming part (13) for forming a predetermined air flow in the air flow path;
A hood (15) covering at least a part of the air outlet;
The duct has a front wall (121) located on the vehicle front side of the duct, and a rear wall (122) located on the vehicle rear side with respect to the front wall,
A part on the outlet side of the rear wall constitutes a guide wall (17) having a shape that is located at the rear of the vehicle as it goes upward of the vehicle.
The air flow forming unit forms the predetermined air flow along the guide wall,
The said hood is an air blowing device located between the said blower outlet and the said windshield in a vehicle up-down direction.
The air flow forming portion is an air flow forming member (13) disposed in the middle of the air flow path,
The airflow forming member is
Forming a first flow path (12a) between the air flow forming member and the rear wall; forming a second flow path (12b) between the air flow forming member and the front wall;
By making the flow path cross-sectional area of the first flow path smaller than the flow path cross-sectional area of the second flow path, an air flow (F1) higher in speed than the air flow (F2) flowing through the second flow path is generated. The air blowing device according to claim 1, wherein the air blowing device is formed in one flow path.
Furthermore, a fall prevention member (14) that is installed at the outlet and prevents the fall of an object into the duct,
In a state where the front seat (2) is arranged in the vehicle interior, the position of the front seat is the center position in the vehicle front-rear direction within the range that the front seat can be taken in the vehicle interior, The angle at which the uppermost part (21a) of the rear part (21) of the front seat is the highest position among the adjustable range of the reclining angle of the front seat The state of the front seat when
In a cross section parallel to the vehicle longitudinal direction and the vehicle vertical direction of the passenger compartment passing through the air outlet and the front seat, the light from the vehicle front end (14a) of the fall prevention member is reflected at the reflection point (RP1) of the windshield. When the light path that reaches the uppermost part of the front seat that is reflected in the standard state is the front imaginary line (VL1),
The hood has at least a portion (15a) extending toward a vehicle rear side from a predetermined point (P1) within a predetermined range (VL1a) from the fall prevention member to the reflection point of the front end virtual line. The air blowing device according to 1 or 2.
The light from the vehicle rear end (14b) of the fall prevention member is reflected at the reflection point (RP2) of the windshield and reaches the uppermost part of the front seat in the standard state. When a virtual line (VL2) is used,
The vehicle rear end (15b) of the hood is located in a predetermined range (VL2a) from the fall prevention member of the rear end imaginary line to the reflection point or on the vehicle rear side of the predetermined range. Air blowing device.
Of the ceiling (31) of the passenger compartment, the center position (C1) in the vehicle front-rear direction of the seat surface portion (22) of the front seat in the standard state and the portion (32) that is the same position in the vehicle front-rear direction When a virtual ceiling line (VL3) connecting the vehicle front end of the fall prevention member with a straight line is drawn,
The air blowing device according to claim 3, wherein the vehicle rear end (15b) of the hood is positioned on the ceiling imaginary line or on the vehicle front side of the ceiling imaginary line.
In a state where the front seat (2) is arranged in the vehicle interior, the position of the front seat is the center position in the vehicle front-rear direction within the range that the front seat can be taken in the vehicle interior, The angle at which the uppermost part (21a) of the rear part (21) of the front seat is the highest position among the adjustable range of the reclining angle of the front seat The state of the front seat when
In the cross section passing through the outlet and the front seat and parallel to the vehicle longitudinal direction and the vehicle vertical direction of the passenger compartment, the same position in the vehicle vertical direction as the uppermost position within the movement range of the airflow forming member in the front wall. The light path when the light from the predetermined part (121a) is reflected by the reflection point (RP3) of the windshield and reaches the uppermost part in the standard state is defined as a front wall imaginary line (VL4). When
The hood has at least a portion (15d) extending toward a vehicle rear side from a predetermined point (P2) within a predetermined range (VL4a) from the front wall to the reflection point of the front wall imaginary line. 2. The air blowing device according to 2.
Light from a predetermined portion (122a) that is the same position in the vehicle vertical direction as the uppermost position in the movement range of the airflow forming member in the rear wall is reflected on the reflection point (RP4) of the windshield, and When the path of light reaching the top of the front seat in the standard state is the rear wall imaginary line (VL5),
The vehicle rear end (15b) of the hood is located in a predetermined range (VL5) from the rear wall of the rear wall imaginary line to the reflection point or on the vehicle rear side of the predetermined range. Air blowing device.
Of the ceiling (31) of the passenger compartment, the portion (32) which is the same position in the vehicle front-rear direction as the center position (C1) in the vehicle front-rear direction of the seat surface portion of the front seat in the standard state, and the front wall When the virtual imaginary line (VL6) connecting the predetermined part of the line with a straight line is drawn,
The air blowing device according to claim 6, wherein a vehicle rear end of the hood is located on the ceiling imaginary line or on the vehicle front side with respect to the ceiling imaginary line.
The air hood according to any one of claims 1 to 8, wherein the hood is provided with an opening (51) on the front side of the vehicle with respect to the center position (C2) in the vehicle front-rear direction of the outlet. apparatus.
6. The air blowing device according to any one of claims 3 to 5, wherein the hood is provided with an opening (51) on the vehicle front side of the predetermined range of the front imaginary line.
The air blowing device according to any one of claims 6 to 8, wherein the hood is provided with an opening (51) on the vehicle front side of the predetermined range of the front wall imaginary line.
Furthermore, it is provided on any one of the wall surface on the air outlet side of the hood and the wall surface on the air outlet side of the wall (18) connected to the hood, and the space below the vehicle on the hood from any one of the wall surfaces. The air blowing device according to any one of claims 1 to 11, further comprising one or more projecting portions (61) projecting toward the front.