JP2560860Y2 - Automotive ventilation sheet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation sheet for automobiles, which improves comfort when the temperature in a vehicle interior is high.

[0002]

2. Description of the Related Art Conventionally, in a vehicle seat, a blower blows air into the seat to improve comfort.
There has been proposed a ventilation sheet in which air is blown out from the seating surface of the seat to the outside.

[0003] For example, when a car with a cooler turned off is left for a long time under the scorching sun in summer, the interior of the car becomes hot, and the surface temperature of the seat increases. In such a situation, when sitting on the seat, stuffiness occurs between the occupant and the seating surface of the seat, so that the occupant turns on the blower switch and blows air to prevent the stuffiness. It is for doing.

[0004]

[Problems to be solved by the invention] However, since high-temperature air is accumulated in the sheet and in the duct between the sheet and the blower, the high-temperature air is generated by the hot air immediately after the switch is turned on. This causes a problem that the air blows out and discomfort occurs.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ventilation sheet for an automobile, which improves comfort when the interior of the vehicle is at a high temperature.

[0006]

In order to achieve the above-mentioned object, the present invention relates to a vehicle ventilation sheet which blows air from a blower into a seat and blows air from a seating surface of the seat to the outside. After the switch is turned on, the blower control circuit reversely rotates the blower for a set time,
A control unit is provided for controlling air to be sucked into the seat from the seating surface of the seat.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. As shown in FIGS. 1 and 2, the vehicle ventilating seat includes a seat cushion 1, a seatback 2, and a headrest 3.

The seat cushion 1 is constructed by placing a cushion urethane foam 4 on a frame (not shown) and covering the urethane foam 4 and the frame with a skin 5 having good air permeability. . Among the above urethane foams 4,
Only the seating surface of the seated person is provided with a fibrous pad material 6 having good air permeability in place of the urethane foam 4.

In the seat back 2, similarly to the seat cushion 1, urethane foam 7 for cushion is placed on the front of a frame (not shown), and the urethane foam 7 and the frame are covered with a highly breathable skin 8 It is configured by covering with. Only the seating surface of the occupant of the urethane foam 7 is replaced with the foamed urethane 7 and a fibrous pad material 9 having good air permeability is placed thereon.

At the lower part in the seat cushion 1 and the rear part in the seat back 2, an air diffusion frame 10,
11 are provided respectively.

On the other hand, an automobile is equipped with a blower 12,
The blower 12 and the frames 10 and 11 are connected to connectors 13 and 14 via ducts 15 and 16. As shown in FIG. 3, a control circuit (CPU) 17 is connected to the blower 12, and the rotation of the blower 12 is controlled via a driver 18 according to a control signal of the control circuit 17. After the switch 19 is turned on, the control circuit 17 reverses the blower 12 for a set time so that air is sucked into the seat cushion 1 and the seat back 2 from the seating surfaces of the seat cushion 1 and the seat back 2. A control unit is provided.

With the above configuration, the occupant can now operate the blower 1
When the switch 19 of FIG. 2 is turned on, referring to FIG. 4, the process starts at step S1 and is initialized at step S2. At step S3, a suction ON signal is sent from the control unit of the control circuit 17 to the driver 18, and the blower 12 rotates in the reverse direction, and air flows from each seating surface of the seat cushion 1 and the seat back 2 to the seat cushion 1 and the seat back 2.
It is sucked in. Thereby, the high-temperature air accumulated in the seat cushion 1 and the seat back 2 and in the ducts 15 and 16 is discharged from the blower 12 to the outside.

Next, at step S4, it is determined whether or not a set time t (for example, 10 seconds) has elapsed since the switch 19 was turned on. If YES, the control circuit 17 is turned on at step S5.
A suction OFF signal is sent from the control unit to the driver 18 and the reverse rotation of the blower 12 is stopped.

Subsequently, in step S6, a blow-off ON signal is sent from the control unit of the control circuit 17 to the driver 18 so that the blower 12 rotates forward and the seat cushion 1 and the seat back 2 are respectively passed through the ducts 15 and 16. Air comes to be blown out from the seating surface, and ends in step S7.

As described above, immediately after the switch 19 is turned on, high-temperature air accumulated in the seat cushion 1 and the seat back 2 and in the ducts 15 and 16 is blown out from the respective seating surfaces of the seat cushion 1 and the seat back 2. Since there is no comfort, the comfort at the beginning of sitting is improved.

[0016]

[Effects of the Invention] As is clear from the above description, the vehicle ventilation sheet of the present invention requires the control circuit of the blower to turn the blower reversely for a set time after the switch is turned on, and to set the seat from the seating surface of the seat. A control unit for controlling air to be sucked into the sheet is provided. Therefore, when the switch is turned on, the blower first rotates in the reverse direction, air is sucked into the seat from the seating surface of the seat, and the high-temperature air accumulated in the seat is discharged from the blower to the outside, and blown from the seating surface of the seat. Since it does not come out, the comfort at the beginning of sitting is improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the ventilation sheet of the present invention.

FIG. 2 is a perspective view of the ventilation sheet of FIG. 1;

FIG. 3 is a control circuit diagram

FIG. 4 is a control flowchart.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Seat cushion, 2 ... Seat back, 6, 9 ... Pad material, 12 ... Blower, 15, 16 ... Duct, 17 ... Control circuit, 19 ... Switch.

Claims (1)

(57) [Scope of request for utility model registration] 1. A vehicle ventilation seat in which a blower blows air into a seat and blows air to the outside from a seating surface of the seat, wherein a control circuit of the blower is turned on for a set time after a switch is turned on. A vehicle ventilation seat, comprising: a control unit for controlling a blower to rotate in a reverse direction so that air is sucked into a seat from a seating surface of the seat.