JP2020199990A - Vehicle seat air conditioner - Google Patents

Abstract

To provide a vehicle seat air conditioner 1 which enables air remaining at the side part window side in a vehicle cabin to flow with conditioned air generated by an air conditioning unit into the vehicle cabin to improve comfort of all occupants in the vehicle cabin efficiently.SOLUTION: A vehicle seat air conditioner 1 includes: a seat device 2 in which a headrest 212 is disposed above a seat back 211; an air conditioning unit 3; an air conditioning duct 4 disposed within the seat back 211 and connected with the air conditioning unit 3; a suction port 43 disposed on a side surface 211b facing the vehicle outer side of a front seat 21 and connected with the air conditioning duct 4; a first exhaust port 41 disposed on an upper surface 211a of the seat back 211 and connected with the air conditioning duct 4; and an adjustment device 42 which adjusts a blowout direction of air blown from the first exhaust port 41.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle seat air conditioner.

Conventionally, as a vehicle seat air conditioner, air inside the vehicle is taken in from an air suction port arranged above the side of the seat and blown out from the seat surface in a shower shape (see, for example, Patent Document 1), or inside the vehicle. It is known that the air-conditioned air blown out from the seat is sucked from the seating surface of the seat backrest and the air flowing inside the seat is discharged from the rear surface of the seat backrest (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2006-130989 Japanese Unexamined Patent Publication No. 2012-11318

Vehicle seat air conditioners are required to promptly improve occupant comfort by efficiently flowing air conditioning air into the vehicle interior during a transitional period from the start of operation to a steady state. In particular, the side window side inside the vehicle is easily affected by the temperature outside the vehicle, and the air-conditioning wind is difficult to spread and the air tends to stay, so it is hot in the summer and cold in the winter. Therefore, in order to quickly improve the comfort of the occupants by the air-conditioning air, it is necessary to quickly adjust the air in the entire vehicle interior including the air on the side window side by the air-conditioning air.

In the technique described in Patent Document 1, although the air in the vehicle interior is taken in from the air suction port arranged above the side portion of the seat, the taken-in air is simply blown out from the seat surface like a shower. Therefore, in this configuration, the conditioned air cannot be efficiently distributed in the vehicle interior, and the air in the vehicle interior cannot be adjusted quickly.

Further, in the technique described in Patent Document 2, since the air-conditioning air sucked from the front surface of the seat is only blown out to the rear surface of the seat, it is possible to improve the comfort of the occupant seated in the seat, but other seats in the vehicle. It was not possible to improve the comfort of the entire passenger compartment, including the passengers seated in the car.

Therefore, the present invention can efficiently flow the air that stays on the side window side of the vehicle interior together with the air-conditioning air generated by the air conditioning unit into the vehicle interior, and efficiently enhances the comfort of all the occupants in the vehicle interior. It is an object of the present invention to provide a vehicle seat air conditioner capable of providing a vehicle seat air conditioner.

(1) In the vehicle seat air conditioner (for example, the vehicle seat air conditioner 1 described later) according to the present invention, a headrest (for example, the headrest 212 described later) is provided above the seat back (for example, the seatback 211 described later). An arranged seat device (for example, a seat device 2 described later), an air conditioning unit (for example, an air conditioning unit 3 described later), and an air conditioning duct (for example, an air conditioning duct) arranged inside the seat back and connected to the air conditioning unit. , The air-conditioning duct 4) described later and the intake port (for example, the intake port 43 described later) arranged on the side surface of the seat device facing the vehicle outside (for example, the side surface 211b described later) and connected to the air-conditioning duct. ), A first exhaust port (for example, a first exhaust port 41 described later) arranged on the upper surface of the seat back (for example, the upper surface 211a described later) and connected to the air conditioning duct, and the first exhaust port. An adjustment device (for example, an adjustment device 42 described later) for adjusting the blowing direction of the air blown from the air conditioner is provided.

According to the above (1), the air staying on the window side can be taken in from the intake port and blown out into the vehicle interior from the first exhaust port on the upper surface of the seat back together with the air conditioning air generated by the air conditioning unit. Moreover, since the direction in which the conditioned air is blown out from the first exhaust port can be adjusted by the adjusting device, the conditioned air including the air staying on the side window side can be efficiently flowed into the vehicle interior. Therefore, the comfort of all occupants in the vehicle interior can be efficiently enhanced.

(2) In the vehicle seat air conditioner according to (1), the adjusting device has a first blowing position in which the air blowing direction from the first exhaust port points to the headrest and a rear side of the headrest. It may be provided so as to be displaceable from the pointing second blowout position.

According to the above (2), when the adjusting device is in the first blowing position, the conditioned air from the first exhaust port can be directly blown around the neck of the occupant seated in the seat device by reflecting the headrest. When the adjusting device is in the second blowing position, the conditioned air from the first exhaust port can be blown to the vicinity of the head of the occupant seated behind the seat device. Therefore, the comfort of all occupants in the vehicle interior can be enhanced more efficiently.

(3) In the vehicle seat air conditioner according to (1) or (2), a second exhaust port (for example, a second exhaust port (for example, the back 211c described later) that is arranged on the back surface of the seat back and is connected to the air conditioning duct. For example, the second exhaust port 45) described later may be further provided.

According to the above (3), since the air conditioning air can be blown toward the occupant seated behind the seat device by the second exhaust port, the comfort of the occupant seated behind the seat device can be quickly improved. ..

(4) In the vehicle seat air conditioner according to (3), a third exhaust port (for example, described later) is arranged on the front surface of the seat back (for example, the front 211d described later) and connected to the air conditioning duct. A third exhaust port 47) may be further provided.

According to the above (4), since the conditioned air can be blown from the front surface of the seat back by the third exhaust port, it is possible to prevent the back of the occupant seated in the seat device from getting stuffy.

(5) In the vehicle seat air conditioner according to (4), a first on-off valve (for example, a first on-off valve 432 described later) capable of adjusting the amount of air sucked into the air-conditioning duct from the intake port. A second on-off valve (for example, a second on-off valve 452 described later) capable of adjusting the amount of air blown out from the first exhaust port and the second exhaust port, and a third on-off valve blown out from the third exhaust port. A third on-off valve (for example, a third on-off valve 472, which will be described later), which can adjust the amount of air to be generated, may be further provided.

According to the above (5), the amount of air taken into the air conditioning duct from the intake port can be adjusted, and the first exhaust port, the second exhaust port, and the third from the air conditioning unit via the air conditioning duct can be adjusted. By adjusting the amount of air blown out from the exhaust port to the outside of the seat back, it is possible to efficiently distribute and blow out the conditioned air flowing through the air conditioning duct into the vehicle interior.

(6) In the vehicle seat air conditioner according to (5), the seat device includes a front seat (for example, a front seat 21 described later) and a rear seat (for example, a rear seat 22 described later) located in the vehicle front-rear direction. 23), the front seat and the rear seat each have a detection device (for example, seating sensors 214, 221, 231 described later) for detecting the presence or absence of a seated person, and the detection device detects the presence or absence of the seated person. A control device (for example, a control device 5 described later) that controls the first on-off valve, the second on-off valve, and the third on-off valve may be further provided according to the number of seated seats of the seat device. ..

According to (6) above, the air conditioning air blown out from the air conditioning duct through the first exhaust port, the second exhaust port, and the third exhaust port is adjusted according to the number of occupants seated in the seat device. Therefore, the efficiency of blowing air conditioning air into the vehicle interior can be easily optimized.

(7) The vehicle seat air conditioner according to any one of (1) to (6) may further include an ion generator (for example, an ion generator 48 described later) connected to the air conditioner duct. ..

According to the above (7), it is possible to deodorize the occupant seated on the seat device and the entire vehicle interior.

According to the present invention, the air that stays on the side window side of the vehicle interior can be efficiently flowed into the vehicle interior together with the air conditioning air generated by the air conditioning unit, and the comfort of all the passengers in the vehicle interior is efficiently enhanced. A vehicle seat air conditioner capable of being provided can be provided.

It is a figure which shows typically the whole structure of the vehicle seat air conditioner which concerns on one Embodiment of this invention. It is a figure which shows the state which the adjustment device of the vehicle seat air conditioner which concerns on one Embodiment of this invention is in a 1st blow-out position. It is a figure which shows the state which the adjustment device of the vehicle seat air conditioner which concerns on one Embodiment of this invention is in a 2nd blow-out position. It is a schematic diagram which shows the operation of the intake port of the vehicle seat air conditioner which concerns on one Embodiment of this invention. It is a block diagram of the seat air conditioner for a vehicle which concerns on one Embodiment of this invention. It is a schematic diagram explaining the operation of the vehicle seat air conditioner which concerns on one Embodiment of this invention. It is a schematic diagram explaining the operation of the vehicle seat air conditioner which concerns on one Embodiment of this invention. It is a schematic diagram explaining the operation of the vehicle seat air conditioner which concerns on one Embodiment of this invention. It is a schematic diagram explaining the operation of the vehicle seat air conditioner which concerns on one Embodiment of this invention. It is a schematic diagram explaining the operation of the vehicle seat air conditioner which concerns on one Embodiment of this invention. It is a schematic diagram explaining the operation of the vehicle seat air conditioner which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the vehicle seat air conditioner according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram schematically showing an overall configuration of a vehicle seat air conditioner according to an embodiment of the present invention. FIG. 2A is a diagram showing a state in which the adjusting device for the vehicle seat air conditioner according to the embodiment of the present invention is in the first blowout position. FIG. 2B is a diagram showing a state in which the adjusting device for the vehicle seat air conditioner according to the embodiment of the present invention is in the second blowout position. FIG. 3 is a schematic view showing the operation of the intake port of the vehicle seat air conditioner according to the embodiment of the present invention. FIG. 4 is a block diagram of a vehicle seat air conditioner according to an embodiment of the present invention.
As shown in FIG. 1, the vehicle seat air conditioner 1 includes a seat device 2 on which an occupant sits, an air conditioner unit 3 that generates air conditioning air, an air conditioning duct 4 that serves as a flow path for air conditioning air, and a vehicle seat. It includes a control device 5 that controls the air conditioner 1.

The seat device 2 in the vehicle seat air conditioner 1 is a seat arranged in the vehicle interior, and in the present embodiment, the front side of the front seat (front seat) and the rear seat (rear seat) located in the front-rear direction of the vehicle. The seat (front seat) 21 is shown. However, the configuration of the seat device 2 described below is not limited to the front seats, and can be applied to any seat arranged in the vehicle interior.

As shown in FIG. 1, the front seat 21 has a seat back 211 as a backrest portion that supports the back of the occupant, a headrest 212 that is arranged above the seat back 211 and supports the occupant's head, and a seat back 211. It has a seat cushion 213 as a seat portion which is arranged below the occupant and supports the buttocks and thighs of the occupant. As shown in FIG. 3, the headrest 212 is arranged by two headrest stays 212b at a predetermined distance from the upper surface 211a of the seat back 211. Note that the headrest stay 212b is not shown in FIGS. 1, 2A and 2B.

A seating sensor 214 is provided in the seat cushion 213 of the front seat 21. The seating sensor 214 detects the load when the occupant sits on the seat cushion 213, and outputs a detection signal to the control device 5. The presence or absence of a seated person is detected by the presence or absence of the detection signal from the seating sensor 214. The seating sensor 214 is an embodiment of a detection device that detects the presence or absence of an occupant seated on the front seat 21.

The air conditioning unit 3 is an in-vehicle air conditioning system (HVAC: Heating Ventilation and Air Conditioning) that integrates the functions of a heater, ventilation, and air conditioning. The air conditioning unit 3 is connected to one end of the air conditioning duct 4 arranged inside the seat back 211, and the air conditioning air (heating air, cooling air, blowing air) generated by the air conditioning unit 3 is introduced into the air conditioning duct 4. It is designed to be sent to. As shown in FIG. 4, the air conditioning unit 3 is driven and controlled by the control device 5. In FIG. 1, the air conditioning unit 3 and the control device 5 are drawn so as to be arranged below the front seat 21, but the positions of the air conditioning unit 3 and the control device 5 are not particularly limited, and the vehicle interior or the engine room is not particularly limited. Can be provided inside. Further, the control device 5 may be integrally provided with the air conditioning unit 3.

The air conditioning duct 4 is a flow path for air conditioning air generated by the air conditioning unit 3, and is arranged so as to vertically traverse the inside of the seat back 211. One end of the air conditioning duct 4 extends to the outside of the front seat 21 and is connected to the air conditioning unit 3 and communicates with the air conditioning air outlet (not shown) of the air conditioning unit 3. The other end of the air conditioning duct 4 extends to the top of the seat back 211.

A first exhaust port 41 is arranged on the upper surface 211a of the seat back 211 so as to face the lower surface 212a of the headrest 212. The first exhaust port 41 is connected to the other end of the air conditioning duct 4 arranged above the seat back 211. The first exhaust port 41 communicates with the inside of the air conditioning duct 4 so that the air conditioning air rising in the air conditioning duct 4 can be blown out toward the upper side of the seat back 211.

The first exhaust port 41 has an adjusting device (first adjusting device) 42 capable of adjusting the blowing direction of the air conditioning air in the front-rear direction. Specifically, the adjusting device 42 of the present embodiment is composed of an electric outlet having a plurality of parallel blade plates 421 (see FIGS. 2A and 2B) called louvers. Each blade plate 421 can be rotated in the front-rear direction of the seat back 211 by a motor (not shown) about a rotation shaft 422 (see FIGS. 2A and 2B) extending in the width direction of the seat back 211. As shown in FIG. 4, the adjusting device 42 sets the blowing direction of the conditioned air blown out from the first exhaust port 41 between the first blowing position and the second blowing position by being driven and controlled by the control device 5. It is possible to displace between.

As shown in FIG. 2A, the first blowout position is such that the plane direction orthogonal to the rotation axis 422 of each blade plate 421 is toward the lower surface 212a of the headrest 212, specifically, slightly of the lower surface 212a of the headrest 212. It is a position where each blade plate 421 is rotated to adjust the angle so as to face the front side (occupant P1 side). Therefore, when the angle of each blade plate 421 of the adjusting device 42 is adjusted to the first blowing position, the blowing direction of the air conditioning air A1 from the first exhaust port 41 points to the headrest 212. As a result, the air-conditioning air A1 blown upward from the first exhaust port 41 toward the headrest 212 hits the lower surface 212a of the headrest 212, changes its angle diagonally downward on the front side, and is blown directly around the neck of the occupant P1.

On the other hand, at the second blowout position, as shown in FIG. 2B, each blade plate 421 rotates so that the plane direction orthogonal to the rotation shaft 422 of each blade plate 421 is toward the rear side of the headrest 212. The angle is adjusted. Therefore, when each blade plate 421 of the adjusting device 42 is adjusted to the second blowing position, the blowing direction of the air conditioning air A1 from the first exhaust port 41 points to the rear side of the headrest 212. As a result, the conditioned air A1 from the first exhaust port 41 is blown out diagonally upward on the rear side of the headrest 212, as shown by the arrow in FIG. 2B.

As shown in FIGS. 1 and 3, the intake port 43 is arranged on the side surface 211b on the outside of the vehicle of the front seat 21. The intake port 43 is connected in the middle of the air conditioning duct 4 in the seat back 211. By communicating with the inside of the air-conditioning duct 4, the intake port 43 can take in the air in the vehicle interior that stays on the side window 101 side of the vehicle 100 into the inside of the air-conditioning duct 4. Although the intake port 43 of the present embodiment is arranged at the lower part of the side surface 211b of the seat back 211, it may be arranged at the upper part of the side surface 211b or at both the upper part and the lower part of the side surface 211b. .. Further, the intake port 43 may be arranged on the side surface 213a on the outer side of the vehicle of the seat cushion 213.

In the seat back 211, the connection portion 431 between the air conditioning duct 4 and the intake port 43 is located below the connection portion 411 between the air conditioning duct 4 and the first exhaust port 41. In the middle of the air conditioning duct 4 between the connecting portion 411 and the connecting portion 431, a fan 44 is arranged to assist the upward flow of the air conditioning air generated by the air conditioning unit 3 and sent into the air conditioning duct 4. ing.

As shown in FIG. 4, the fan 44 is driven and controlled by the control device 5 so as to be interlocked with the operation of the air conditioning unit 3. By driving the fan 44, the upward flow of the air conditioning air in the air conditioning duct 4 is enhanced, and the air in the vehicle interior taken into the air conditioning duct 4 from the intake port 43 rises together with the air conditioning air from the air conditioning unit 3. It is sent out toward the first exhaust port 41 of. At this time, since the flow of the air conditioning air in the air conditioning duct 4 is generated by the cooperation between the fan (not shown) in the air conditioning unit 3 and the fan 44 in the air conditioning duct 4, the rotation of each fan The amount can be reduced, and the air-conditioning wind blowout noise can be suppressed accordingly.

A second exhaust port 45 is arranged on the back surface 211c of the seat back 211. The second exhaust port 45 is arranged near the upper part of the back surface 211c of the seat back 211, and is connected between the connection portion 411 with the first exhaust port 41 in the air conditioning duct 4 and the fan 44. The second exhaust port 45 communicates with the inside of the air conditioning duct 4 so that the air conditioning air rising in the air conditioning duct 4 is seated on the rear seat 22 (see FIGS. 5A to 7B) immediately behind the front seat 21. It can be blown out toward the occupants.

The second exhaust port 45 has an adjusting device (second adjusting device) 46 capable of adjusting the blowing direction of the air conditioning air in the vertical direction. Like the adjusting device 42, the adjusting device 46 of the present embodiment is composed of a plurality of parallel blade plates 461, and each blade plate 461 is manually operated by an occupant seated on the rear seat to form a seat back 211. It is configured to be adjustable to any angle in the width direction and the vertical direction. In FIG. 3, the adjustment device 46 provided in the second exhaust port 45 is not shown.

Further, a third exhaust port 47 is arranged on the front surface 211d of the seat back 211. The third exhaust port 47 is arranged so as to correspond to the back of the occupant seated on the front surface 211d of the seat back 211, and is between the connection portion 451 with the second exhaust port 45 in the air conditioning duct 4 and the fan 44. You are connected. The third exhaust port 47 transmits the air-conditioning air rising in the air-conditioning duct 4 to the back of the occupant from a large number of pores formed in the front surface 211d of the seat back 211 by communicating with the inside of the air-conditioning duct 4. It can be blown out toward.

A first on-off valve 432 is arranged at the connection portion 431 between the air conditioning duct 4 and the intake port 43. As shown in FIG. 4, the first on-off valve 432 is driven and controlled by the control device 5 to fully open the flow path of the connection portion 431 between the air conditioning duct 4 and the intake port 43, and the intake port 43. A first position (broken line position in FIG. 1) that allows air to be sucked from the air and a second position (solid line in FIG. 1) that completely closes the flow path of the connection portion 431 so that air cannot be sucked from the intake port 43. The opening can be adjusted with and from the position). When the first on-off valve 432 is adjusted to an arbitrary angle between the first position and the second position, it is taken into the air conditioning duct 4 from the intake port 43 according to the adjusted angle. The amount of air and the amount of air-conditioning air sent from the air-conditioning unit 3 into the air-conditioning duct 4 are adjusted, and the air-conditioning air mixed with the adjusted air is sent to the first exhaust port 41 in the air-conditioning duct 4. It is designed to flow toward. Therefore, by adjusting the opening degree of the first on-off valve 432, the amount of air sucked into the air conditioning duct 4 from the intake port 43 is adjusted. In FIG. 3, the first on-off valve 432 is not shown.

Further, a second on-off valve 452 is arranged at the connection portion 451 between the air conditioning duct 4 and the second exhaust port 45. As shown in FIG. 4, the second on-off valve 452 is driven and controlled by the control device 5 to fully open the flow path of the connection portion 411 between the air conditioning duct 4 and the first exhaust port 41 and to perform air conditioning. It is connected to the first position (solid line position in FIG. 1) in which the flow path of the connection portion 451 between the duct 4 and the second exhaust port 45 is completely closed and the conditioned air is blown out only from the first exhaust port 41. The opening degree is adjusted with the second position (broken position in FIG. 1) in which the flow path of the portion 411 is fully closed and the flow path of the connection portion 451 is fully opened to blow out the conditioned air only from the second exhaust port 45. It is configured to be possible. When the second on-off valve 452 is adjusted to an arbitrary angle between the first position and the second position, the amount of air conditioning air adjusted according to the angle is the first exhaust port 41 and the second. It is designed to be blown out from each of the two exhaust ports 45. Therefore, by adjusting the opening degree of the second on-off valve 452, the amount of air conditioning air blown from the first exhaust port 41 and the second exhaust port 45 is adjusted. In FIG. 3, the connection portion 451 and the second on-off valve 452 are not shown.

Further, a third on-off valve 472 is arranged at the connection portion 471 between the air conditioning duct 4 and the third exhaust port 47. As shown in FIG. 4, the third on-off valve 472 is driven and controlled by the control device 5 to fully open the flow path of the connection portion 471 between the air conditioning duct 4 and the third exhaust port 47 for air conditioning. The first position (broken line position in FIG. 1) for blowing out the conditioned air in the air conditioning duct 4 from the third exhaust port 47 and the flow path of the connecting portion 471 are completely closed to completely close the air conditioning duct 4 to the third exhaust port 47. The opening can be adjusted with and from the second position (solid line position in FIG. 1) for blocking the conditioned air toward the air. When the third on-off valve 472 is adjusted to an arbitrary angle between the first position and the second position, it goes from the air conditioning duct 4 to the third exhaust port 47 according to the adjusted angle. The amount of air conditioning air is adjusted. Therefore, by adjusting the opening degree of the third on-off valve 472, the amount of air conditioning air blown from the third exhaust port 47 is adjusted. In FIG. 3, the connection portion 471 and the third on-off valve 472 are not shown.

As described above, the vehicle seat air conditioner 1 includes the first on-off valve 432, the second on-off valve 452, and the third on-off valve 472 in the air-conditioning duct 4, so that the air-conditioning duct 4 is taken into the air-conditioning duct 4 from the intake port 43. The amount of air generated can be adjusted, and the air is blown out from the air conditioning unit 3 through the air conditioning duct 4 from the first exhaust port 41, the second exhaust port 45, and the third exhaust port 47 to the outside of the seat back 211. The amount of air can be adjusted, and the air-conditioning air flowing through the air-conditioning duct 4 can be efficiently distributed and blown out into the vehicle interior.

As shown in FIGS. 1 and 3, an ion generator 48 connected to the air conditioning duct 4 can be arranged in the seat back 211. As shown in FIG. 4, the ion generator 48 is driven and controlled by the control device 5, and the generated negative ions are discharged into the air conditioning duct 4. As a result, negative ions are sprayed into the vehicle interior through the air-conditioning air, and the vehicle interior is deodorized. The drive of the ion generator 48 can be arbitrarily performed by the occupant. Further, the ion generator 48 of the present embodiment is arranged in the seat back 211 closer to the air conditioning unit 3 than the connection portion 431 between the air conditioning duct 4 and the intake port 43, but the exhaust ports 41 and 45 are respectively. , 47 connection portions 411,451,471 The air conditioning unit 3 side may be closer to the connection portion of the exhaust port closest to the air conditioning unit 3 (in this embodiment, the connection portion 471 of the third exhaust port 47).

Next, an example of a specific operation of the vehicle seat air conditioner 1 will be described with reference to FIGS. 5A to 7B. 5A to 7B are schematic views illustrating the operation of the vehicle seat air conditioner according to the embodiment of the present invention. Here, an example is illustrated in which the seat device 2 is a three-row seat including two rows of rear seats 22 and 23 on the rear side of the front seat 21 having the vehicle seat air conditioner 1, and is air-conditioned by the air-conditioning unit 3. A case where a cooling air in the summer and a heating air in the winter are blown as the wind will be described. The arrows in FIGS. 5A to 7B indicate the blowing direction of the air conditioning air.

Although only the three rows on the driver's seat side are shown in FIGS. 5A to 7B, the three rows on the passenger seat side can also operate in the same manner as on the driver's seat side. In addition, seating sensors 221,231 as detection devices similar to the seating sensor 214 are also arranged in the seat cushions of the rear seats 22 and 23 in the second and third rows, respectively. As shown in FIG. 4, the seating sensors 221, 231 are also configured to output a detection signal to the control device 5.

First, as shown in FIGS. 5A and 5B, when the occupant P1 is seated only on the front seat 21 of the seat device 2, a detection signal is output from only the seating sensor 214 to the control device 5, and the control device 5 outputs the detection signal. It is determined that the occupant P1 is seated only on the front seat 21. When the air conditioner unit 3 is operated, the control device 5 controls the vehicle seat air conditioner 1 as follows in the transition period shown in FIG. 5A.
-Adjust the adjusting device 42 of the first exhaust port 41 to the first blowing position (see FIG. 2A) facing the headrest 212.
-Adjust the first on-off valve 432 to the first position where air can be sucked from the intake port 43.
-Adjust the second on-off valve 452 to the first position where the conditioned air is blown out from only the first exhaust port 41 of the first exhaust port 41 and the second exhaust port 45.
-Adjust the third on-off valve 472 to the first position where the conditioned air is blown out from the third exhaust port 47.

As a result, as shown in FIG. 5A, in addition to the normal air-conditioning air A0 blown from the exhaust port (not shown) provided on the dashboard 102 toward the front of the occupant P1, the seat back 211 of the front seat 21 The air-conditioning air A1 that directs the headrest 212 from the first exhaust port 41 and the air-conditioning air A2 that directs the back of the occupant P1 from the third exhaust port 47 are each blown into the vehicle interior. The air-conditioning wind A1 hits the headrest 212 and is blown around the neck of the occupant P1 to directly cool the neck of the occupant P1 in the summer and warm it directly in the winter. In addition, the air-conditioning wind A2 is blown onto the back of the occupant P1 to directly cool the back of the occupant P1 in the summer to eliminate stuffiness and directly warm the back of the occupant P1 in the winter. As a result, the comfort of the occupant P1 in the transitional period can be quickly increased. Moreover, as shown in FIG. 3, the air-conditioning winds A1 and A2 include the air that stays on the side window 101 side that is sucked from the intake port 43, so that the air-conditioning air is generated on the air-conditioning unit 3 and is on the side of the vehicle interior. Air including hot air in summer and cold air in winter that stays on the side window 101 side can be efficiently flowed into the vehicle interior, and the vehicle interior temperature on the side window 101 side can be quickly set to a set temperature.

After a certain period of time has elapsed from the start of operation of the air conditioning unit 3 or after the vehicle interior reaches the set temperature, the operation shifts to the steady operation shown in FIG. 5B. The control device 5 controls the vehicle seat air conditioner 1 in steady operation as follows.
-Adjust the adjusting device 42 of the first exhaust port 41 to the first blowing position (see FIG. 2A) facing the headrest 212.
-Adjust the first on-off valve 432 to the second position where air cannot be sucked from the intake port 43.
-Adjust the second on-off valve 452 to the first position where the conditioned air is blown out from only the first exhaust port 41 of the first exhaust port 41 and the second exhaust port 45.
-Adjust the third on-off valve 472 to a second position that shuts off the air conditioning air from the air conditioning duct 4 to the third exhaust port 47.

As a result, as shown in FIG. 5B, the air conditioning air blown into the vehicle interior in addition to the normal air conditioning air A0 is only the air conditioning air A1 that directly cools or warms the neck of the occupant P1, which is useless in the vehicle interior. No air conditioning air is blown out. Further, since the air-conditioning wind A1 is blown around the neck of the occupant P1, it is not necessary to excessively lower the temperature in the summer or excessively raise the temperature in the winter, thus reducing the load on the air-conditioning unit 3. However, the comfort of the occupant P1 can be maintained. Further, since the wind directly hitting the face of the occupant P1 is reduced, a natural wind can be provided to the occupant P1.

Next, as shown in FIGS. 6A and 6B, when the occupants P1 and P2 are seated on the front seat 21 of the seat device 2 and the rear seat 22 in the second row, the seating sensors 214 and 221 are connected to the control device 5. The detection signal is output, and it is determined by the control device 5 that the occupants P1 and P2 are seated on the front seat 21 and the rear seat 22, respectively. When the air conditioner unit 3 is operated, the control device 5 controls the vehicle seat air conditioner 1 as follows in the transitional period shown in FIG. 6A.
-Adjust the first on-off valve 432 to the first position where air can be sucked from the intake port 43.
-Adjust the second on-off valve 452 to a second position where the conditioned air is blown out only from the second exhaust port 45 of the first exhaust port 41 and the second exhaust port 45.
-Adjust the third on-off valve 472 to a second position that shuts off the air conditioning air from the air conditioning duct 4 to the third exhaust port 47.

As a result, as shown in FIG. 6A, in addition to the normal air conditioning air A0 blown out to the occupant P1, the second exhaust port 45 provided in the seat back 211 of the front seat 21 heads toward the occupant P2 seated in the rear seat 22. Air conditioning wind A3 is blown into the passenger compartment. Since the air-conditioning wind A3 is blown toward the front of the occupant P2, the comfort of the occupants P1 and P2 in the transitional period can be quickly improved. Further, also in this case, since the air conditioning air A3 contains the air that stays on the side window 101 side sucked from the intake port 43, the air conditioning air generated by the air conditioning unit 3 is placed on the side window 101 side of the vehicle interior. Air including stagnant hot air and cold air can be efficiently flowed into the vehicle interior, and the vehicle interior temperature on the side window 101 side can be quickly set to the set temperature. Further, when the intake port 43 is formed on the upper portion of the side surface 211b of the seat back 211, the feeling of cold air on the thighs of the occupant can be reduced by sucking the cold air from the window through the intake port 43, especially in winter. it can. Further, in the summer, the occupant P2 seated on the rear seat 22 can be cooled with a small amount of power consumption by using the normal air conditioning air A0 blown from the dashboard 102.

In the steady operation shown in FIG. 6B, the control device 5 controls the vehicle seat air conditioner 1 as follows.
-Adjust the adjusting device 42 of the first exhaust port 41 to the second blowing position (see FIG. 2B) facing the rear side of the headrest 212.
-Adjust the first on-off valve 432 to the second position where air cannot be sucked from the intake port 43.
-Adjust the second on-off valve 452 to the first position where the conditioned air is blown out from only the first exhaust port 41 of the first exhaust port 41 and the second exhaust port 45.
-Adjust the third on-off valve 472 to a second position that shuts off the air conditioning air from the air conditioning duct 4 to the third exhaust port 47.

As a result, as shown in FIG. 6B, the air conditioning air blown into the vehicle interior in addition to the normal air conditioning air A0 is only the air conditioning air A1 directed from the first exhaust port 41 to the rear side of the headrest 212. No useless air conditioning air is blown out. Further, since the air-conditioning air A1 from the first exhaust port 41 is not directly blown to the occupant P2 but is blown above the occupant P2, a natural wind reflected by the ceiling in the vehicle interior is generated in the vehicle interior. It is possible to maintain the comfort of the occupants P1 and P2.

Further, as shown in FIGS. 7A and 7B, when the occupants P1, P2 and P3 are seated on the front seat 21, the rear seat 22 in the second row and the rear seat 23 in the third row of the seat device 2, the seating sensor A detection signal is output from 214, 221, 231 to the control device 5, and it is determined by the control device 5 that the occupants P1, P2, and P3 are seated on the front seats 21 and the rear seats 22, 23, respectively. When the air conditioner unit 3 is operated, the control device 5 controls the vehicle seat air conditioner 1 as follows in the transition period shown in FIG. 7A.
-Adjust the adjusting device 42 of the first exhaust port 41 to the second blowing position (see FIG. 2B) facing the rear side of the headrest 212.
-Adjust the first on-off valve 432 to the first position where air can be sucked from the intake port 43.
-Adjust the second on-off valve 452 between the first position and the second position so that the conditioned air is blown out from both the first exhaust port 41 and the second exhaust port 45.
-Adjust the third on-off valve 472 to a second position that shuts off the air conditioning air from the air conditioning duct 4 to the third exhaust port 47.

As a result, as shown in FIG. 7A, in addition to the normal air conditioning air A0 blown out to the occupant P1, the air conditioning air A1 is provided from both the first exhaust port 41 and the second exhaust port 45 of the seat back 211 of the front seat 21. , A3 are blown into the passenger compartment, respectively. Since the air-conditioning air A1 is blown from the first exhaust port 41 toward the rear side of the headrest 212, it can hit the ceiling in the vehicle interior and spread above the second and third rows. Further, the air conditioning wind A3 is blown from the second exhaust port 45 toward the occupant P2 seated on the rear seat 22. Therefore, the comfort of the occupants P1, P2 and P3 in the transitional period can be quickly improved. Moreover, since the conditioned air A1 and A3 include the air that stays on the side window 101 side that is sucked from the intake port 43, it stays on the side window 101 side of the vehicle interior together with the conditioned air generated by the air conditioning unit 3. Air including hot air and cold air can be efficiently flowed into the vehicle interior, and the vehicle interior temperature on the side window 101 side can be quickly set to the set temperature.

As shown in FIG. 7A, a rear air conditioning unit (or circulator) 6 driven and controlled by the control device 5 can be provided on the ceiling in the vehicle interior. According to the vehicle seat air conditioner 1 of the present embodiment, the comfort of the occupant P2 of the rear seat 22 in the second row is sufficiently enhanced by the air conditioning winds A1 and A3 blown from the seat back 211 of the front seat 21. The rear air-conditioning unit 6 only needs to cover the occupant P3 of the rear seat 23 in the third row, and the cost for the rear air-conditioning unit can be reduced.

In the steady operation shown in FIG. 7B, the control device 5 controls the vehicle seat air conditioner 1 as follows.
-Adjust the adjusting device 42 of the first exhaust port 41 to the second blowing position (see FIG. 2B) facing the rear side of the headrest 212.
-Adjust the first on-off valve 432 to the second position where air cannot be sucked from the intake port 43.
-Adjust the second on-off valve 452 to the first position where the conditioned air is blown out from only the first exhaust port 41 of the first exhaust port 41 and the second exhaust port 45.
-Adjust the third on-off valve 472 to a second position that shuts off the air conditioning air from the air conditioning duct 4 to the third exhaust port 47.

As a result, as shown in FIG. 7B, the air conditioning air blown into the vehicle interior in addition to the normal air conditioning air A0 is only the air conditioning air A1 directed from the first exhaust port 41 to the rear side of the headrest 212. No useless air conditioning air is blown out. Further, since the air-conditioning air A1 from the first exhaust port 41 is not directly blown to the occupant P2 but is blown above the occupant P2, a natural wind reflected by the ceiling in the vehicle interior is generated in the vehicle interior. Can be made to. Therefore, the comfort of the occupants P1, P2 and P3 can be maintained. Further, by stopping the driving of the rear air conditioning unit 6, wasteful power consumption can be suppressed.

As described above, depending on the number of occupants seated in the seat device 2, the air-conditioning duct 4 is blown out from the air-conditioning duct 4 through the first exhaust port 41, the second exhaust port 45, and the third exhaust port 47 of the seat back 211. Since the air conditioning air can be adjusted, the efficiency of blowing the air conditioning air into the vehicle interior can be easily optimized.

The operation of the vehicle seat air conditioner 1 described with reference to FIGS. 5A to 7B is merely an example, and the operation of the vehicle seat air conditioner 1 of the present embodiment is not limited to the above operation. In the vehicle seat air conditioner 1 of the present embodiment, the opening degrees of the first on-off valve 432, the second on-off valve 452, and the third on-off valve 472 are appropriately adjusted, and the first exhaust port 41, the second exhaust port 45, and the first on-off port 45 are adjusted. 3 By appropriately controlling the air-conditioning air blown out from the exhaust port 47, it can operate in various ways according to the size of the passenger compartment, the number of seats of the seat device 2, etc., and stays on the side window 101 side of the passenger compartment. It is possible to efficiently flow the air-conditioned air including the air to the passenger compartment to efficiently improve the comfort of all the passengers in the passenger compartment.

Further, in the present embodiment, one second on-off valve 425 adjusts the flow path of the air-conditioning air flowing in the air-conditioning duct 4 between the first exhaust port 41 side and the second exhaust port 45 side. However, individual on-off valves (flow path adjusting valves) may be provided in the connection portion 411 on the first exhaust port 41 side and the connection portion 451 on the second exhaust port 45 side, respectively.

1 Vehicle seat air conditioner 2 Seat device 21 Front seat (front seat)
211 Seat back 211a Top surface 211b Side surface 211c Back surface 211d Front surface 212 Headrest 214,221,231 Seating sensor (detector)
22,23 Rear seat (rear seat)
3 Air-conditioning unit 4 Air-conditioning duct 41 1st exhaust port 42 Adjustment device 43 Intake port 432 1st on-off valve 45 2nd exhaust port 452 2nd on-off valve 47 3rd exhaust port 472 3rd on-off valve 48 Ion generator 5 Control device

Claims (7)

A seat device with a headrest placed above the seat back,
With the air conditioning unit
An air conditioning duct arranged inside the seat back and connected to the air conditioning unit,
An intake port arranged on the side surface of the seat device facing the outside of the vehicle and connected to the air conditioning duct,
A first exhaust port arranged on the upper surface of the seat back and connected to the air conditioning duct,
An adjusting device that adjusts the blowing direction of the air blown out from the first exhaust port, and
A vehicle seat air conditioner equipped with. The adjusting device is provided so as to be displaceable between a first blowing position in which the air blowing direction from the first exhaust port points toward the headrest and a second blowing position in which the air blowing direction is directed to the rear side of the headrest. The vehicle seat air conditioner according to claim 1. The vehicle seat air conditioner according to claim 1 or 2, further comprising a second exhaust port arranged on the back surface of the seat back and connected to the air conditioner duct. The vehicle seat air conditioner according to claim 3, further comprising a third exhaust port arranged on the front surface of the seat back and connected to the air conditioner duct. A first on-off valve capable of adjusting the amount of air sucked into the air conditioning duct from the intake port, and
A second on-off valve capable of adjusting the amount of air blown from the first exhaust port and the second exhaust port, respectively.
A third on-off valve that can adjust the amount of air blown out from the third exhaust port, and
The vehicle seat air conditioner according to claim 4, further comprising. The seat device includes a front seat and a rear seat located in the front-rear direction of the vehicle.
The front seat and the rear seat each have a detection device for detecting the presence or absence of a seated person.
5. The fifth aspect of the present invention further comprises a control device that controls the first on-off valve, the second on-off valve, and the third on-off valve according to the number of seated seats of the seat device detected by the detection device. The vehicle seat air conditioner described. The vehicle seat air conditioner according to any one of claims 1 to 6, further comprising an ion generator connected to the air conditioner duct.

Images