JPH06219137A - Interior air current control device for automobile - Google Patents

Abstract

PURPOSE:To cut off high speed hot air flowing to a foot part of a front seat from a foot part of a rear seat through a space part, and improve a heating effect in the foot part of the rear seat by arranging an air current control member in the space part defined under the front seat in the longitudinal direction of a car body. CONSTITUTION:On an upper surface of a floor panel 11, a lower rail 16 is installed on both front and rear cross members 12 and 13 through respective brackets 14 and 15. An upper rail 17 engaged slidably movably with the lower rail 16 is fixed under a seat frame 18. A seat cushion 2A of a front seat 2 is arranged above the seat frame 18. In the constitution, an air current control member 20 to cut off a space part 19 defined under the front seat 2 in the longitudinal direction of a vehicle body is interposed between a floor mat 21 and the seat cushion 2A. High speed hot air flowing to a foot part of the front seat from a foot part of a rear seat through the space part 19 is cut off. Thereby, heating effect is improved in the foot part of the rear seat.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle interior airflow control device for an automobile.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Laid-Open No. 62-7721.
As described in Japanese Patent Publication No. 7, a heating device for a vehicle interior of an automobile is known, which is provided with an air outflow portion for sending air to an area of a foot portion of a passenger, an area of a head portion, and a glass area of the vehicle. . Normally, from the viewpoint of ventilation inside the vehicle, the air flow is generated from the rear package tray to the trunk side by the running wind, but considering the noise outside the vehicle, make the ventilation volume too large. The current situation is that it is not possible.

By the way, when the flow of air (warm air) at the feet of the rear seats was confirmed by an experiment, it was found that the front heating means provided in the instrument panel section was located behind the passenger compartment. The blown warm air circulates in the passenger compartment, that is, as shown in FIG. 5, flows downward along the front surface of the rear seat a through the upper space in the passenger compartment and then to the vehicle body below the front seat b. It was found that a high-speed airflow that flows from the foot portion of the rear seat to the foot portion of the front seat in the space portion c in the front-rear direction.

[0004]

Therefore, due to the above-mentioned high-speed air flow, a sufficient heating effect cannot be obtained at the feet of the rear seats, and in order to enhance the heating feeling of the feet of the rear seats, Even if the rear heater outlet d that blows out warm air is specially provided at the foot of the seat, the warm air is dragged by the above-mentioned high-speed air flow (see the broken line in FIG. 5), and the occupant does not have much heating effect. I can't.

The present invention provides a vehicle interior airflow control device for an automobile, which enhances the heating effect of the foot portion of the rear seat.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a front seat and a rear seat are arranged in a passenger compartment, and a lower portion of the front seat is connected to a foot portion of the front seat and a foot portion of the rear seat in a vehicle longitudinal direction. It is premised on a vehicle interior airflow control device of a vehicle in which a space is formed and warm air is blown to the rear of the vehicle interior by the heating means for the front seat.

According to the first aspect of the present invention, an airflow control member capable of blocking the space is provided in the space.

According to a second aspect of the present invention, a temperature sensor is provided at a foot portion of the rear seat facing the space portion to detect an ambient temperature of a foot portion of the rear seat, and the temperature sensor is provided at the space portion. An air flow control member that is displaceable between a closed position that shuts off the air flow and an open position that communicates with the space, and the air flow control member that is linked to the air flow control member and that is displaced between the closed position and the open position. And a control means for receiving the output of the temperature sensor and controlling the drive means to cause the airflow control member to take the closed position when the ambient temperature at the foot of the rear seat is lower than a predetermined temperature. And

According to the invention of claim 3, in the invention of claim 1 or 2, the foot portion of the rear seat is
Rear heater blowing means for blowing warm air is provided at the foot of the rear seat.

[0010]

According to the first aspect of the present invention, the airflow control member shuts off the space in the vehicle front-rear direction below the front seat, so that high-speed air does not flow from the foot portion of the rear seat to the foot portion of the front seat. Since warm air stays at the feet of the rear seats, the heating effect of the feet of the rear seats is enhanced.

According to the second aspect of the present invention, only when the ambient temperature at the foot of the rear seat is low, the airflow control member is in the closed position for shutting off the space in the vehicle front-rear direction below the front seat and below the front seat. The space in the front-rear direction of the vehicle body is blocked. This eliminates the flow of air from the feet of the rear seats to the feet of the front seats, so the temperature of the atmosphere of the feet of the rear seats is controlled and the atmosphere of the feet of the rear seats is kept approximately constant. Leaning, the heating effect of the foot of the rear seat is enhanced.

According to the third aspect of the present invention, the airflow control member shuts off the space in the vehicle front-rear direction below the front seat, and the air flow from the foot portion of the rear seat to the foot portion of the front seat is eliminated. The warm air blown toward the foot portion of the rear seat from the rear heater blowing means is not dragged by the high-speed air flow, and the heating effect of the foot portion of the rear seat is enhanced.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIG. 1 showing a schematic structure of an automobile, 1
Is an automobile, and front and rear seats 2 and 3 are disposed in front and rear of the interior of the vehicle.

The front seat 2 is shown in FIG.
In, the seat cushion 2A, the seat back 2B, and the headrest 2C are provided, and are slidable in the front-rear direction. That is, the lower rail 16 is provided on the front and rear cross members 12, 13 provided on the floor panel 11 via the brackets 14, 15, and the upper rail 17 slidably engaged with the lower rail 16 is the seat cushion 2A lower side seat. It is fixed to the lower part of the frame 18. An airflow control member 20 that blocks a space 19 in the vehicle front-rear direction formed below the front seat 2 is provided between the floor mat 21 on the floor panel 11 and the seat cushion 2A. The airflow control member 20 has a width substantially equal to the seat width, and has an elastic bellows shape so as to follow the sliding movement of the seat cushion 2A in the front-rear direction.

With the above structure, the air flow control member 2
By 0, the flow of warm air that has been conventionally blown out from the front seat heating means (not shown) to the rear of the vehicle compartment and circulates in the vehicle compartment is blocked. That is, through the upper space in the passenger compartment,
The high-speed airflow that flows along the front surface of the rear seat 3 from the foot portion of the rear seat to the foot portion of the front seat in the space 19 in the vehicle front-rear direction below the front seat is blocked by the airflow control member 20. There is no high-speed warm air flow. Therefore, since the warm air stays at the feet of the rear seat 3, the heating effect of the feet of the rear seat 3 is enhanced. Although the front seat 2 is slidable in the front-rear direction, it can be similarly applied to the case where the front seat 2 is slidable in the front-rear direction of the vehicle body and can be lifted.

In the above embodiment, the airflow control member 20 keeps the space 19 closed, so that the ambient temperature at the foot of the rear seat 3 may be too high. Therefore, as in the following embodiment, the temperature can be controlled so that the ambient temperature of the foot portion of the rear seat 3 becomes substantially constant.

As shown in FIG. 3, on the floor panel 11 below the front portion of the seat cushion 2A of the front seat 2, an air flow control member capable of blocking a space 19 in the vehicle front-rear direction below the front seat 2. A control plate 31 is rotatably supported about a rotation shaft 32. The airflow control plate 31 has a rotating shaft 32.
A shield plate portion 31a extending to one side from the shaft supporting portion and having a width substantially equal to the seat width, and an extension portion 31b bent from the shaft supporting portion and extending downward. A spring (not shown) is wound around and biases the airflow control plate 31 in a direction in which the airflow control plate 31 is always opened (that is, counterclockwise in the drawing). In addition, the extension portion 3 of the air flow control plate 31
1b is connected via a connecting wire 34 to a motor 36 disposed below a dashboard 35 that separates the engine room from the vehicle compartment. By driving the motor 36,
The airflow control plate 31 can be rotated via the connection wire 34. Further, at a position slightly rearward of the position where the airflow control plate 31 is provided, below the front seat 2 facing the space 19, a temperature sensor 37 for detecting the ambient temperature of the foot of the rear seat is arranged. Has been done. Reference numeral 38 is a rear heater outlet that blows warm air to the feet of the rear seats.

Reference numeral 39 denotes a controller, which controls the drive of the motor 36 based on the temperature signal input from the temperature sensor 37 and winds the connection wire 34 to shield the shield plate portion 3.
1a standing up to block the space portion 19 (see the dashed line in FIG. 3) and open position where the connecting wire 34 is rewound to collapse the shield plate portion 31a to open the space portion 19 (solid line in FIG. 3). (See) and is configured to control to take as an alternative.

Next, the flow of processing by the controller 39 will be described in detail with reference to FIG.

First, when the engine starts, the temperature sensor 37 detects the ambient temperature t of the foot of the rear seat 3 (step S1), and the detected temperature t is set in advance to the first preset value.
It is determined whether the temperature is lower than the set temperature t0 (step S2
).

When the detected temperature t is lower than the first set temperature t0, in order to enhance the heating effect at the foot of the rear seat 3, the airflow control plate 31 is set to the closed position and the space 19 below the front seat 2 is closed. Since it is necessary to shut off, it is determined whether the airflow control plate 31 is in the closed position (step S3). Airflow control plate 3
If 1 is the closed position, it is not necessary to set the airflow control plate 31 to the closed position. Therefore, while returning to step S1, if it is not the closed position, the motor 36 is driven to wind the connection wire 34 (step S4). As a result, the airflow control plate 31 is closed (step S5), the closed position is reached, and the process returns to step S1.

On the other hand, when the detected temperature t is not lower than the first set temperature t0, it is determined whether or not the detected temperature t is lower than the second set temperature (t0 + α) for reasons such as hunting prevention. (Step S6). Second set temperature (t0 +
If it is less than α), it is within the allowable range.
Return to 1. On the other hand, if the temperature is not lower than the second set temperature (t0 + α), the air flow control plate 31
Since it is necessary to release the cutoff with the open position, it is determined whether the airflow control plate 31 is in the open position (step S7).

If the airflow control plate 31 is in the open position, it can be left as it is. Therefore, if the airflow control plate 31 is not in the open position, the motor 36 is driven to rewind the connection wire 34. (Step S8), rotating shaft 3
The airflow control plate 31 is opened by the spring force of a coil spring (not shown) provided in step 2 (step S9
), Return to the open position.

In the above embodiment, the airflow control plate 31 is constructed so as to take the open position and the closed position selectively.
The connection wire 3 by the motor 36 according to the ambient temperature
The air flow control plate 31 by adjusting the winding amount and the rewinding amount of No. 4
It is also possible to change the opening degree of. Further, instead of opening and closing the airflow control plate 31 by the motor 36,
The airflow control plate may be formed of a shape memory alloy or the like, and may be configured to open and close according to changes in the ambient temperature of the foot of the rear seat without using a motor.

[0026]

As described above, according to the first aspect of the present invention, the air flow control member blocks the air flow from the rear seat side to the front seat side, so that the heating effect of the foot portion of the rear seat is achieved. Can be increased.

According to the second aspect of the present invention, the airflow control member takes the closed position to block the space in the vehicle front-rear direction below the front seat only when the ambient temperature of the foot of the rear seat is low. Since the temperature control of the ambient temperature of the foot portion is performed, the ambient temperature of the foot portion of the rear seat can be kept substantially constant, and the heating effect of the foot portion of the rear seat can be enhanced.

According to the third aspect of the invention, since the high-speed air flow is shut off by the air flow control member, the warm air blown from the rear heater blowing means is not dragged by the high-speed air flow. The rear heater blowing means further enhances the heating effect of the foot portion of the rear seat.

[Brief description of drawings]

FIG. 1 is a schematic view showing an automobile.

FIG. 2 is a schematic configuration diagram near a front seat.

FIG. 3 is a schematic configuration diagram of another embodiment.

FIG. 4 is a flowchart showing a processing flow of a controller.

FIG. 5 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 1 Car 2 Front seat 3 Rear seat 19 Space 20 Air flow control member 31 Air flow control plate (air flow control member) 34 Connection wire 36 Motor (driving means) 37 Temperature sensor 38 Rear heater outlet (rear heater outlet) 39 Controller (control means) )

Claims (3)

[Claims] 1. A front seat and a rear seat are arranged in a passenger compartment, and a space in the vehicle front-rear direction is formed below the front seat to communicate with a foot portion of the front seat and a foot portion of the rear seat. In a vehicle interior airflow control device in which warm air is blown to the rear of the vehicle interior by a heating device for heating, an airflow control member capable of blocking the space is disposed in the space. Airflow control device for automobile cabin. 2. A front seat and a rear seat are arranged in a vehicle compartment, and a space in the vehicle front-rear direction is formed below the front seat and communicates with a foot portion of the front seat and a foot portion of the rear seat. In a vehicle interior airflow control device in which warm air is blown to the rear of a vehicle compartment by a heating means for a vehicle, a temperature sensor arranged at the foot portion of the rear seat facing the space and detecting the ambient temperature of the foot portion of the rear seat. And an airflow control member that is disposed in the space and is displaceable between a closed position that blocks the space and an open position that communicates the space, and the airflow control linked to the airflow control member. A drive means for displacing the member between a closed position and an open position, and an output of the temperature sensor, and when the ambient temperature at the foot of the rear seat is lower than a predetermined temperature, the drive means is controlled to control the air flow. And a control means for causing the member to take the closed position. Room airflow control device. 3. A vehicle compartment airflow control device for an automobile according to claim 1, wherein rear foot blowing means for blowing warm air to the foot portion of the rear seat is arranged at the foot portion of the rear seat. .