JP7780864B2 - Air blowing device for vehicle - Google Patents

Description

This disclosure relates to an air blowing device for a vehicle.

In the past, it was common for air conditioning unit outlets to be located on the front of the instrument panel in automobiles and other vehicles. However, in recent years, there has been an increase in cases where other in-vehicle devices, including touch panels, are located on the front of the instrument panel. In such cases, it is desirable for the air conditioning unit outlets to be located on the top surface (i.e., the surface facing the ceiling) of the instrument panel rather than on the front. One example of a device with such a configuration is described in Patent Document 1 below. In the device described in Patent Document 1, an arc-shaped outlet is located on the top surface of the instrument panel, thereby distributing air to the driver's seat and passenger seat.

Japanese Patent Application Laid-Open No. 2016-20128

However, if a single air outlet is placed on the top surface, it becomes difficult to independently adjust the strength and direction of the airflow distributed from the outlet to the driver's seat and passenger seat.

The present disclosure has been made to solve the above-mentioned problems, and aims to provide a vehicle air conditioning system that allows for independent adjustment of airflow volume and direction for each seat.

In order to solve the above problems, the vehicle air blowing device according to the present disclosure includes: an air outlet formed on an upper surface of a vehicle instrument panel; a duct that guides air that has been temperature-adjusted by a vehicle air conditioning device to the air outlet; right and left flaps that are arranged at the air outlet, are arranged in a width direction of the vehicle, and are capable of adjusting opening and closing angles independently of each other by rotating around a rotation axis that extends in the width direction; an occupant sensor that detects the presence or absence of an occupant inside the vehicle for each seat position including a right front seat, a right rear seat, a left front seat, and a left rear seat; and a control unit that adjusts the opening and closing angles of the right and left flaps based on the seat position detected by the occupant sensor when the occupant is seated , and the opening and closing angles are set to a 0 angle at which the air outlet is closed, and a 1 angle at which air is blown from the air outlet to the front seats. and a large angle at which air is blown from the air outlet to the rear seat, and the control unit adjusts the right flap to the small angle when the occupant is sitting only in the right front seat of the right front seat and the right rear seat, and swings the right flap between the small angle and the large angle when the occupant is sitting in both the right front seat and the right rear seat, adjusts the left flap to a zero angle when the occupant is not sitting in either the left front seat or the left rear seat, adjusts the left flap to the small angle when the occupant is sitting only in the left front seat, adjusts the left flap to the large angle when the occupant is sitting only in the left rear seat, and swings the left flap between the small angle and the large angle when the occupant is sitting in both the left front seat and the left rear seat.

This disclosure provides a vehicle air blowing device that allows for independent adjustment of airflow volume and direction for each seat.

FIG. 2 is a plan view schematically showing the interior of the vehicle according to the first embodiment of the present disclosure. 1 is a plan view showing a configuration of an air blowing device for a vehicle according to a first embodiment of the present disclosure. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. FIG. 2 is a perspective view showing the shape of a partition member according to the first embodiment of the present disclosure. FIG. 2 is a hardware configuration diagram of a control unit according to the first embodiment of the present disclosure. FIG. 2 is a functional block diagram of a control unit according to the first embodiment of the present disclosure. 5 is a flowchart illustrating an example of an operation of a control unit according to the first embodiment of the present disclosure. 4 is a table showing operation modes of the air blowing device for a vehicle according to the first embodiment of the present disclosure, showing the operation modes when the flap is fixed. 4 is a table showing operation modes of the air blowing device for a vehicle according to the first embodiment of the present disclosure, showing the operation modes when the flap is swingable. FIG. 10 is a plan view showing a modified example of a flap according to the first embodiment of the present disclosure. FIG. 4 is a plan view showing a configuration of an air blowing device for a vehicle according to a second embodiment of the present disclosure. 10 is a diagram showing a configuration of a drive unit of a vehicle air outlet device according to a third embodiment of the present disclosure. FIG.

First Embodiment
(Vehicle configuration)
A vehicle 10 equipped with a vehicle air blowing device 20 according to a first embodiment of the present disclosure will be described below with reference to Figs. 1 to 10. In the following description, the forward side of the vehicle 10 in the traveling direction will be simply referred to as the "forward side," and the opposite side will be simply referred to as the "rear side." Furthermore, the width direction of the vehicle 10 will be simply referred to as the "width direction."

As shown in FIG. 1, the vehicle 10 includes an instrument panel 11, a steering wheel 12, a front seat 13 consisting of a driver's seat 13A and a passenger seat 13B, a rear seat 15, a vehicle air conditioning system 19, and a vehicle air outlet system 20.

The instrument panel 11 is located on the front side of the vehicle 10. The instrument panel 11 has an upper surface 11a that faces the ceiling of the vehicle 10. An outlet 22 (described below) of the vehicle air blowing device 20 opens onto the upper surface 11a. Air is supplied from this outlet 22 to each seat inside the vehicle 10.

(Configuration of vehicle air conditioner)
The vehicle air conditioner 19 is a refrigerant circuit that utilizes a refrigeration cycle. The vehicle air conditioner 19 generates temperature-controlled air by exchanging heat between air taken in from the outside and the refrigerant. This air is supplied to the interior of the vehicle 10 through the vehicle air outlet device 20.

(Configuration of vehicle air blowing device)
The vehicle air blowing device 20 has an air outlet 22 and a duct 31 (see Figure 2), a partition member 23, flaps 24 (right flap 24A, left flap 24B), a pair of actuators 25, an occupant sensor 70, and a control unit 90.

The air outlet 22 is a trapezoidal opening formed on the upper surface 11a. The front edge of the air outlet 22 is shorter than the rear edge. As shown in FIG. 2, a duct 31 extending upward from the vehicle air conditioning unit 19 is connected to the air outlet 22. A partition member 23 is provided in the center of the width of the air outlet 22. The partition member 23 divides the air outlet 22 into multiple sections (for example, two sections). In the following description, the area of the air outlet 22 to the right of the partition member 23 will be referred to as the right air outlet 22A, and the area to the left will be referred to as the left air outlet 22B.

(Configuration of partition member)
A pair of surfaces of the partition member 23 facing both sides in the width direction are defined as side surfaces 23S. As shown in FIG. 2 , the pair of side surfaces 23S widen in a plan view, widening away from each other as they move from the front to the rear. That is, the partition member 23 has a triangular shape in a plan view. Furthermore, as shown in FIG. 3 , when viewed from the direction of travel of the vehicle 10, the pair of side surfaces 23S widen in a plan view, widening away from each other as they move from bottom to top. That is, the partition member 23 also has a triangular shape when viewed from the direction of travel. FIG. 4 shows the overall shape of the partition member 23. As a result, the right air outlet 22A and the left air outlet 22B have a parallelogram shape. More specifically, the right air outlet 22A and the left air outlet 22B widen in a plan view, widening away from each other as they move from the front to the rear.

As shown in Figure 3, the side surfaces 23S of the partition member 23 each face the inner surface of the duct 31 (duct inner surface 31S and duct guide surface 31R) in the width direction. The duct inner surface 31S and duct guide surface 31R form the wall surfaces on both sides of the duct 31 in the width direction. The duct inner surface 31S and duct guide surface 31R are connected in order from bottom to top. The pair of duct inner surface 31S widens away from each other as it goes from bottom to top. In the example shown in Figure 3, the upper edge of the duct inner surface 31S is located slightly below the lower end of the partition member 23. The duct guide surface 31R extends upward from the upper edge of the duct inner surface 31S. In other words, the duct guide surface 31R is angled with respect to the duct inner surface 31S. It is also possible to adopt a configuration in which the duct guide surface 31R is not formed and only the duct inner surface 31S extends to the air outlet 22.

(Flap configuration)
As shown in FIG. 2 , the right air outlet 22A is provided with multiple (two) right flaps 24A. The two right flaps 24A are arranged in the traveling direction of the vehicle 10. The right flaps 24A are parallelogram-shaped to correspond to the shape of the right air outlet 22A. Each right flap 24A is supported so as to be rotatable about a rotation axis extending in the width direction. The right flap 24A is rotated about the rotation axis by an actuator 25 to change the opening/closing angle. This allows the right flap 24A to adjust the amount and direction of air blown from the right air outlet 22A. The actuator 25 is driven based on a drive signal sent from a control unit 90, which will be described later.

The left air outlet 22B is provided with multiple (two) left flaps 24B. The two left flaps 24B are arranged in the direction of travel of the vehicle 10. The left flaps 24B are parallelogram-shaped to correspond to the shape of the left air outlet 22B. Each left flap 24B is supported so that it can rotate around a rotation axis extending in the width direction. The left flap 24B is rotated around the rotation axis by an actuator 25 to change the opening/closing angle. This allows the left flap 24B to adjust the amount and direction of air supplied from the left air outlet 22B. The actuator 25 is driven based on a drive signal sent from the control unit 90, which will be described later.

(Configuration of Occupant Sensor)
The occupant sensor 70 detects the seating position of an occupant inside the vehicle 10 (i.e., the position of the seat where the occupant is sitting). The occupant sensor 70 may be, for example, a human presence sensor, or may be configured to detect an occupant based on image analysis by a camera. The occupant sensor 70 transmits the detected seating position to the control unit 90 as an electrical signal.

(Configuration of control unit)
The control unit 90 transmits a drive signal to the actuator 25 to adjust the opening/closing angle of the flap 24 based on the detection result of the occupant sensor 70. As shown in FIG. 5 , the control unit 90 is a computer including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), a HDD (Hard Disk Drive), and a signal transmission/reception module 95 (I/O: Input/Output). The signal transmission/reception module 95 receives information on the seating position detected by the occupant sensor 70 as an electrical signal. The signal transmission/reception module 95 also transmits an electrical signal to the actuator 25 to change the opening/closing angle of the flap 24. The signal transmission/reception module 95 may transmit and receive a signal amplified via, for example, a charge amplifier.

As shown in FIG. 6 , the CPU 91 of the control unit 90 executes a program stored in advance in the device, and thereby has a position acquisition unit 81, a memory unit 82, a determination unit 83, and a drive command unit 84. The position acquisition unit 81 receives the seating position detected by the occupant sensor 70. The memory unit 82 stores in advance the relationship between the seating position and the opening/closing angle of the flap 24. The determination unit 83 refers to the memory unit 82 and determines the opening/closing angle of the flap 24 corresponding to the seating position acquired by the position acquisition unit 81. The drive command unit 84 transmits a drive signal to the actuator 25 to drive the flap 24 to the opening/closing angle determined by the determination unit 83.

The control unit 90 operates based on the control method shown in Figure 7, as an example. This control method includes step S1 of determining the seating position (determining the presence or absence of an occupant), step S2 of pre-cooling, and step S3 of blowing air to a specific location. In step S1, the determination unit 83 determines the presence or absence of an occupant and their seating position. If it is determined in step S1 that there is no occupant (step S1: No), air is blown to all seats for pre-cooling (step S2). On the other hand, if it is determined in step S1 that there is an occupant (step S1: Yes), the opening/closing angle of the flap 24 is changed so that air is blown toward the seat where the occupant is sitting.

Figure 8 shows the correspondence (operation mode) between the seating position of the occupant and the opening/closing angle of the right flap 24A and left flap 24B. Note that in the figure, the flap angle can be switched between three levels: "0," "small," and "large." "0" indicates a state in which the air outlet is blocked by the flap (no air is blown). "Small" indicates a state in which air is blown toward the front seats. "Large" indicates a state in which air is blown toward the rear seats. For example, mode 1A represents a state in which only an occupant is seated in the driver's seat (right front seat). In mode 1A, the angle of the right flap 24A is set to "small" and the angle of the left flap 24B to "0," so that air is blown concentratedly toward the driver's seat. From mode 1A to mode 8A, the seat to which air is blown is switched based on the presence or absence of an occupant.

Although not shown in detail, the flap 24 may have a swing function. The swing function here refers to a function that automatically changes the opening/closing angle over time. In other words, when the swing function is turned on, air is blown over a wide area, covering both the front and rear seats. Figure 9 shows an example of an operating mode when this swing function is provided. For example, mode 3B corresponds to a state in which occupants are seated in the driver's seat (right front seat), the right rear seat, and the passenger seat (left front seat). In mode 3B, the right flap 24A is swung to blow air to both the right front seat and the right rear seat. On the other hand, the left flap 24B has a small opening/closing angle, so air is blown only to the left front seat. Note that, because air is less likely to reach the rear seats than the front seats, in modes 6B to 8B (all of which involve occupants seated in the rear seats), the opening/closing angle of the left flap 24B is set to a large angle, and the right flap 24A is in a swing state. This allows air from both the right air outlet 22A and the left air outlet 22B to be supplied to the rear seats.

(Action and effect)
According to the above configuration, the opening and closing angles of the multiple flaps 24 can be adjusted independently of each other, so that the amount and direction of air blown from one air outlet 22 can be changed for each seat, thereby improving the comfort and occupancy of the occupants of each seat.

With the above configuration, the air is guided along the pair of side surfaces 23S of the partition member 23, so that the air flows in directions that move away from each other as it moves upward. As a result, if the air outlet 22 is located in the center of the instrument panel 11 in the width direction, for example, the air can be distributed toward both sides in the width direction.

With the above configuration, the air is guided along the pair of side surfaces 23S of the partition member 23, so that it flows in directions that move away from each other as it moves toward the rear. As a result, if the air outlet 22 is positioned in the center of the instrument panel 11 in the width direction, for example, the air can be smoothly distributed to both sides in the width direction.

With the above configuration, the air flows upward along the pair of duct inner surfaces 31S, causing the air to flow away from each other. This allows the air to be more smoothly distributed to both sides in the width direction, for example, when the air outlet 22 is located in the center of the instrument panel 11.

With the above configuration, the air is guided along the pair of duct inner surfaces 31S, so that it flows in directions that move away from each other as it moves toward the rear. This allows for even smoother distribution of the air toward both sides in the width direction, for example, when the air outlet 22 is located in the center of the instrument panel 11 in the width direction.

With the above configuration, the opening and closing angle of the flap 24 is adjusted based on the seating position of the occupant detected by the occupant sensor 70, allowing air to be supplied preferentially to the location where the occupant is actually seated.

The above describes the first embodiment of the present disclosure. It should be noted that various changes and modifications can be made to the above configuration without departing from the spirit and scope of the present disclosure. For example, as shown as a modified example in Figure 10, the flap 24 can be configured with a plate-shaped flap main body 24H and multiple ribs R. The flap main body 24H is plate-shaped, and multiple ribs are provided on one surface in the thickness direction (the surface facing the air outlet 22: guide surface 24S). These ribs R protrude from the guide surface 24S and extend from the center in the width direction to either the left or right. That is, in the right flap 24A, the rib R extends from the center in the width direction toward the right. In the left flap 24B, the rib R extends from the center in the width direction toward the left.

With this configuration, the provision of ribs R allows for more proactive guidance of the airflow direction from each flap 24.

Second Embodiment
Next, a second embodiment of the present disclosure will be described with reference to FIG. 11 . Note that the same components as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. 11 , in a vehicle air blowing device 20′ according to this embodiment, the right and left air outlets 22A′ and 22B′ are rectangular and extend in directions that increase in distance from the center as they extend from the front to the rear. Furthermore, the right and left flaps 24A′ and 24B′ are arranged to face in directions that increase in distance from each other as they extend from the front to the rear, corresponding to the shape of the air outlet 22′. In other words, the rotation axes of the right and left flaps 24A′ and 24B′ are angled with respect to the width direction.

With the above configuration, the multiple flaps 24' face away from each other from the center in the width direction. Therefore, by opening and closing the flaps 24', the air directed from the air outlet 22' can be more actively distributed from the center to both sides in the width direction. This further improves the comfort and occupancy of the occupants in each seat.

The above describes the second embodiment of the present disclosure. It should be noted that various changes and modifications can be made to the above configuration without departing from the spirit and scope of the present disclosure.

Third Embodiment
Next, a third embodiment of the present disclosure will be described with reference to Fig. 12. Note that the same components as those in the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted. As shown in Fig. 12, in this embodiment, the right flap 24A and the left flap 24B in the first embodiment are driven by a single actuator 25' provided on the same axis.

Specifically, the right flap 24A is supported by a rod-shaped first shaft 28S. The left flap 24B is supported by a cylindrical second shaft 29S that surrounds the first shaft 28S from the outer periphery. In other words, the first shaft 28S is inserted coaxially inside the second shaft 29S. Note that in Figure 12, for simplicity, the flaps 24 are not shown. A first follower 27A is provided at the end of the first shaft 28S, and a second follower 27B is provided at the end of the second shaft 29S. The first follower 27A and the second follower 27B are engaged with the guide groove Rg of the adjacent cam plate 26. The cam plate 26 is rotated around the axis Ac by the actuator 25'. In other words, by rotating the cam plate 26, the first follower 27A and the second follower 27B are guided along the guide groove Rg. As a result, the position of the first shaft 28S and the right flap 24A supported by it changes. Similarly, the position of the second shaft 29S and the left flap 24B supported by it changes.

In this way, the above configuration makes it possible to adjust the position of the flap 24 inexpensively and simply by using only a single actuator.

<Additional Notes>
The vehicle air blowing device 20 described in each embodiment can be understood, for example, as follows.

(1) The vehicle air blowing device 20 according to the first aspect includes an air outlet 22 formed on the upper surface 11a of the instrument panel 11 of the vehicle 10, a duct 31 that guides air that has been temperature-adjusted by the vehicle air conditioning unit 19 to the air outlet 22, and a plurality of flaps 24 that are arranged at the air outlet 22, are aligned in the width direction of the vehicle 10, and have opening and closing angles that can be adjusted independently of one another.

With the above configuration, the opening and closing angles of multiple flaps 24 can be adjusted independently of each other, allowing the volume and direction of air supplied from a single air outlet 22 to be changed for each seat.

(2) The vehicle air blowing device 20 according to the second aspect further includes a partition member 23 arranged in the center of the air outlet 22, and a pair of side surfaces 23S of the partition member 23 facing the width direction widen in directions that separate them from each other as they move from bottom to top.

With the above configuration, the air is guided along the pair of side surfaces 23S of the partition member 23, so that the air flows in directions that move away from each other as it moves upward. As a result, if the air outlet 22 is located in the center of the instrument panel 11 in the width direction, for example, the air can be distributed toward both sides in the width direction.

(3) In the vehicle air blowing device 20 according to the third aspect, the pair of side surfaces 23S widen in directions that move away from each other as they move from the front side to the rear side of the vehicle 10.

With the above configuration, the air is guided along the pair of side surfaces 23S of the partition member 23, so that it flows in directions that move away from each other as it moves toward the rear. As a result, if the air outlet 22 is positioned in the center of the instrument panel 11 in the width direction, for example, the air can be distributed toward both sides in the width direction.

(4) In the vehicle air blowing device 20 according to the fourth aspect, a pair of duct inner surfaces 31S that respectively face the pair of side surfaces 23S of the duct 31 widen in directions that separate them from each other as they move from bottom to top.

With the above configuration, the airflow is guided along the pair of duct inner surfaces 31S, so that it flows away from each other as it moves upward. As a result, if the air outlet 22 is located in the center of the instrument panel 11 in the width direction, for example, the airflow can be distributed to both sides in the width direction.

(5) In the vehicle air blowing device 20 according to the fifth aspect, the pair of duct inner surfaces 31S widen in directions that move away from each other as they move from the front side to the rear side of the vehicle 10.

With the above configuration, the air is guided along the pair of duct inner surfaces 31S, so that it flows in directions that move away from each other as it moves toward the rear. As a result, if the air outlet 22 is located in the center of the instrument panel 11 in the width direction, for example, the air can be distributed toward both sides in the width direction.

(6) In the vehicle air blowing device 20 according to the sixth aspect, the flap 24 includes a flap main body 24H having a guide surface 24S that covers the air outlet, and a rib R that protrudes from the guide surface 24S and extends from the center of the vehicle 10 in the width direction toward either the left or right side.

According to the above configuration, a rib R is provided on the guide surface 24S of the flap main body 24H. The rib R extends from the center in the width direction toward either the left or right side. This allows the airflow to be distributed toward both sides in the width direction, for example, when the air outlet 22 is positioned in the center in the width direction of the instrument panel 11.

(7) The vehicle air blowing device 20 according to the seventh aspect further includes a plurality of shafts (first shaft 28S, second shaft 29S) that respectively support the plurality of flaps 24, followers (first follower 27A, second follower 27B) provided at the ends of the shafts, a cam plate 26 that has a guide groove Rg formed therein with which the follower engages, and an actuator 25' that rotates the cam plate 26 around the axis Ac.

The above configuration makes it possible to adjust the position of the flap 24 inexpensively and simply by using only a single actuator 25'.

(8) In the vehicle air blowing device 20' according to the eighth aspect, the multiple flaps 24' are arranged so as to face in directions away from each other from the center of the vehicle 10 in the width direction.

With the above configuration, the multiple flaps 24' face away from each other from the center in the width direction. Therefore, by opening and closing the flaps 24', the air directed from the air outlet 22' can be distributed from the center to both sides in the width direction.

(9) The vehicle air blowing device 20 according to the ninth aspect further includes an occupant sensor 70 that detects the presence or absence of an occupant inside the vehicle 10 for each seat, and a control unit 90 that adjusts the opening and closing angles of the multiple flaps 24 based on the seating positions of the occupants detected by the occupant sensor 70.

With the above configuration, the opening and closing angle of the flap 24 is adjusted based on the seating position of the occupant detected by the occupant sensor 70, allowing air to be supplied preferentially to the location where the occupant is actually seated.

10 Vehicle 11 Instrument panel 11a Upper surface 12 Steering wheel 13 Front seat 13A Driver's seat 13B Passenger seat 15 Rear seat 19 Vehicle air conditioning device 20 Vehicle air blowing device 22 Air outlet 22A Right air outlet 22B Left air outlet 23 Partition member 23S Side surface 24 Flap 24A Right flap 24B Left flap 24H Flap body 24S Guide surface 25, 25' Actuator 26 Cam plate 27A First follower 27B Second follower 28S First shaft 29S Second shaft 31 Duct 31R Duct guide surface 31S Duct inner surface 70 Occupant sensor 81 Position acquisition unit 82 Memory unit 83 Determination unit 84 Drive command unit 90 Control unit 91 CPU
92 ROM
93 RAM
94 HDD
95 Signal transmitting/receiving module Ac Axis line Rg Guide groove

Claims (8)

an air outlet formed on an upper surface of an instrument panel of a vehicle, and a duct that guides air whose temperature has been adjusted by a vehicle air conditioning device to the air outlet;
a right flap and a left flap that are arranged at the air outlet, arranged in a width direction of the vehicle, and that can adjust opening and closing angles independently of each other by rotating about a rotation axis that extends in the width direction ;
Equipped with
an occupant sensor that detects the presence or absence of an occupant inside the vehicle for each seat position including a right front seat, a right rear seat, a left front seat, and a left rear seat ;
a control unit that adjusts the opening and closing angles of the right flap and the left flap based on the seat position detected by the occupant sensor when the occupant is seated ;
Furthermore,
The opening and closing angle is
A 0 angle at which the air outlet is blocked;
a small angle at which air is blown from the air outlet to the front seats;
a large angle at which air is blown from the air outlet to the rear seat;
Including,
The control unit
When the occupant is seated only in the right front seat of the right front seat and the right rear seat, the right flap is adjusted to the small angle, and when the occupant is seated in both the right front seat and the right rear seat, the right flap is swung between the small angle and the large angle;
The air blowing device for a vehicle adjusts the left flap to a zero angle when no occupant is sitting in either the left front seat or the left rear seat, adjusts the left flap to the small angle when the occupant is sitting only in the left front seat, adjusts the left flap to the large angle when the occupant is sitting only in the left rear seat, and swings the left flap between the small angle and the large angle when the occupant is sitting in both the left front seat and the left rear seat . Further provided is a partition member disposed in the center of the air outlet,
2. The air blowing device for a vehicle according to claim 1, wherein the pair of side surfaces of the partition member facing the width direction widen in directions that separate from each other as they extend from below to above. The vehicle air blowing device according to claim 2, wherein the pair of side surfaces widen in directions that separate them from each other as they move from the front to the rear of the vehicle. The vehicle air blowing device according to claim 2 or 3, wherein a pair of inner duct surfaces facing the pair of side surfaces of the duct widen in directions that separate them from each other as they extend from bottom to top. The vehicle air blowing device according to claim 4, wherein the pair of duct inner surfaces widen in directions that separate them from each other as they move from the front to the rear of the vehicle. The right flap and the left flap are
a flap body having a guide surface covering the air outlet;
a rib protruding from the guide surface and extending from a center portion in the width direction of the vehicle toward either the left or right side;
The air blowing device for a vehicle according to any one of claims 1 to 5, further comprising: a plurality of shafts supporting the right flap and the left flap , respectively;
a follower provided at each end of the shaft;
a cam plate having a guide groove formed thereon with which the follower engages;
an actuator that rotates the cam plate around an axis;
The air blowing device for a vehicle according to claim 1 , further comprising: The air blowing device for a vehicle according to any one of claims 1 to 6, wherein the right flap and the left flap are arranged to face in directions away from each other from a center portion in a width direction of the vehicle.