JP2007186152A - Vehicular seat air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular seat air-conditioner capable of blowing air-conditioned air to an occupant seated on a rear seat without using any long duct. <P>SOLUTION: In the vehicular seat air-conditioner, a blow-out opening 31 is formed on a back side of a seatback 21 of a driver's seat to blow out the air-conditioned air fed from a second branch duct 18 from the blow-out opening 31 to a rear seat side. Thus, the air-conditioned air can be blown to an occupant seated on the rear seat without using any long duct extending from a vehicle front side of an instrument panel. Further, a blow-out grille 33 is provided, and the blowing direction of the air to be blown from the blow-out opening 31 for the rear seat can be freely changed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat air conditioner that blows conditioned air toward an occupant seated on a seat.

  Conventionally, an indoor air conditioning unit that is arranged on the vehicle front side of an instrument panel in a vehicle interior and blows out conditioned air toward the vehicle interior, and an conditioned air from the indoor air conditioning unit that is provided on the instrument panel to the occupant of the front seat A front-seat air outlet that blows out toward the rear seat, a duct that guides the conditioned air from the indoor air conditioning unit to the rear seat side, and a rear-seat air outlet that blows the air-conditioned air flowing through the duct toward the occupant of the rear seat, There is a vehicle air conditioner equipped with.

  In addition, it is formed with an inlet for introducing temperature-controlled conditioned air from the outside, a seat back constituting the seat, a plurality of outlets provided in the seat cushion, and a rear side of the seat back facing the rear seat side. In addition, there is a vehicle seat air conditioner that includes a rear seat air outlet and a wind direction plate that adjusts the direction of air blown out from the air outlet (see, for example, Patent Document 1).

In this case, air conditioned air is blown to the back and waist of the occupant seated on the seat from the air outlets of the seat back and the seat cushion, and air conditioned air is blown from the rear seat air outlet to the rear seat occupant. Yes.
Japanese Utility Model Publication No. 60-97052

  In the vehicle air conditioner described above, it is necessary to use a long duct extending from the instrument panel side to the rear seat side in order to blow the conditioned air from the indoor air conditioning unit to the rear seat side. For this reason, the fall of the ventilation volume was caused by the pressure loss by a duct.

  Further, in the vehicle seat air conditioner described in Patent Document 1, the conditioned air is introduced from the outside, so a duct is required, and the air flow rate is reduced due to pressure loss caused by the duct.

  In view of the above points, the present invention provides a vehicle seat air conditioner that can blow down conditioned air to not only a passenger in the seat but also a passenger in a rear seat while suppressing a decrease in the amount of air flow. With the goal.

  In order to achieve the above object, in the present invention, an air conditioning duct (10, 17, 18, 40, 42), a blower (11) that is arranged in a seat and blows air in the air conditioning duct, and an air conditioning duct are arranged. The temperature adjusting means (12, 13, 14) for adjusting the temperature of the air blown from the blower, and the air that is disposed on the downstream side of the temperature adjusting means and is provided on the seat and temperature-adjusted by the temperature adjusting means And a first air outlet (22) that blows out toward the occupant seated in the seat, the vehicle seat air conditioner disposed on the downstream side of the temperature adjusting means and provided in the seat, the temperature adjusting means The second air outlet (31) that blows out the temperature-controlled air toward the occupant seated in the rear seat of the seat and the direction of the air blown out from the second air outlet that is rotatably supported Blowing direction A settling member (33), characterized in that it comprises a.

  According to the above, the conditioned air can be blown out not only to the passenger in the seat but also to the passenger in the rear seat. Furthermore, since the blower is arranged in the seat and the temperature adjusting means is arranged in the air conditioning duct, it is not necessary to introduce the conditioned air temperature-controlled using the duct from the outside as in the prior art. In the present invention, it is possible to suppress a decrease in the blowing rate. Moreover, since the blowing direction adjusting member (33) is provided, the blowing direction of the air blown out from the rear seat outlet can be freely adjusted.

  In addition, the code | symbol in the bracket | parenthesis of each means described in a claim and this column shows the correspondence with the specific means as described in embodiment mentioned later.

  FIG. 1 shows a schematic configuration of an embodiment of a vehicle seat air conditioner according to the present invention.

  As shown in FIG. 1, the vehicle seat air conditioner of the present embodiment includes an air conditioning duct 10, and the air conditioning duct 10 is disposed inside a seat cushion 20 of a driver's seat (seat described in claims). ing.

  The air conditioning duct 10 is provided with a suction port 10a for sucking air in the passenger compartment. An electric blower 11 that blows air is disposed on the downstream side of the suction port 10a. That is, the blower 11 is disposed inside the seat cushion 20. The blower 11 drives a centrifugal impeller by an electric motor, and the amount of blown air varies depending on the voltage applied to the electric motor.

  A Peltier element 12 is disposed on the downstream side of the blower 11, and the Peltier element 12 includes a heat absorbing portion (described as “cool” in the drawing) 12 a and a heat radiating portion (described as “Hot” in the drawing) 12 b. It is a well-known semiconductor element provided with. The heat absorption part 12 a is a first electrode part that is arranged in the air conditioning duct 10 and absorbs heat from the air in the air conditioning duct 10. The heat radiating part 12 b is a second electrode part that is disposed outside the air conditioning duct 10 and downstream of the air intake port 10 b of the air conditioning duct 10 and radiates heat to the outside of the air conditioning duct 10. The air intake 10b is an opening that blows out air in the air conditioning duct 10 toward the heat radiating portion 12b.

  A bypass passage 13 that bypasses the heat absorbing portion 12a and flows air is provided on the side of the heat absorbing portion 12a of the Peltier element 12. A plate-like temperature control door 14 that is rotatably supported is provided on the upstream side of the Peltier element 12, and the rotation angle of the temperature control door 14 can be adjusted by driving a servo motor 15. The temperature adjustment door 14 adjusts the temperature of the air blown into the vehicle interior by changing the air volume ratio H between the air volume flowing into the heat absorbing portion 12a of the Peltier element 12 and the air volume flowing into the bypass passage 13 according to the rotation angle. The ratio H is a ratio represented by H = Fa / (Fa + Fb), where Fa is the amount of air flowing into the heat absorbing portion 12a and Fb is the amount of air flowing into the bypass passage 13.

  Moreover, when the temperature control door 14 is arrange | positioned in the 1st position (position a in FIG. 1), the air inlet 10c and the air intake port 10b of the heat absorption part 12a are each closed, and the air of the bypass passage 13 is closed. Open the inlet. When the temperature control door 14 is disposed at the second position (position b in FIG. 1), the air intake port 10c and the air intake port 10b of the heat absorption part 12a are opened, and the air intake of the bypass passage 13 is performed. Close your mouth.

  First and second branch ducts 17 and 18 are connected to the downstream side of the air conditioning duct 10. The first branch duct 17 allows air to flow toward the air outlets 22 of the seat cushion 20 and the seat back 21. The second branch duct 18 is disposed so as to extend toward the headrest 23 inside the seat back 21.

  In addition, a branch door 25 that is rotatably supported is disposed upstream of the first and second branch ducts 17 and 18, and the rotation angle of the branch door 25 is adjusted by driving a servo motor 26. It is possible. When the branch door 25 is disposed at the first position (position c in FIG. 1), the air intake port of the first branch duct 17 is closed and the air intake port of the second branch duct 18 is opened. . When the branch door 25 is disposed at the second position (position d in FIG. 1), the air intake port of the first branch duct 17 is opened and the air intake port of the second branch duct 18 is closed. . When the branch door 25 is disposed at the third position (position g in FIG. 1), the air inlets of the first and second branch ducts 17 and 18 are opened.

  Further, on the downstream side (upper side in the drawing) of the second branch duct 18, there are a head opening 30 a that blows air toward the headrest 23 and a rear seat opening 30 b that communicates with the rear seat outlet 31. Is provided. The rear seat outlet 31 is formed with an opening toward the rear seat on the back surface of the seat back 21. Here, a partially enlarged view of the periphery of the rear seat outlet 31 is shown in FIG.

  Inside the rear seat outlet 31 is provided a blow grill 33 which is formed in a spherical shape and is rotatably supported with respect to the seat back 21, and the blow grill 33 has a second branch duct 18. A ventilation path 33a is provided for flowing air blown from the rear seat opening 30b toward the vehicle interior. The blow-out grill 33 is rotated in accordance with an operation by the occupant so as to freely change the blow-out direction of the air blown out from the rear seat blow-out opening 31. In FIG. 2, the example which has set the blowing direction to the horizontal direction is shown.

  Returning to FIG. 1, a plate-like switching door 35 that is rotatably supported is provided on the upstream side of the head opening 30 a of the second branch duct 18, and the rotation angle of the switching door 35 depends on the servo motor 37. It can be adjusted by driving. When the switching door 35 is arranged at the first position (position f in FIG. 1), the head opening 30a is closed and the rear seat opening 30b is opened. Further, when the switching door 35 is disposed at the second position (position e in FIG. 1), the head opening 30a is opened and the rear seat opening 30b is closed.

  In addition, a connecting duct 40 is connected to the head opening 30 a of the second branch duct 18, and the connecting duct 40 is disposed between the headrest 23 and the seat back 21 and connected to the headrest duct 42. Yes. The connecting duct 40 is formed in a bellows shape, and is extendable according to the position of the headrest 23 with respect to the seat back 21. The headrest duct 42 is provided in the headrest 23 and communicates with an air outlet 44 that blows air to the driver's neck.

  The electronic control unit 50 includes a microcomputer, a memory, a timer, and the like, and controls the Peltier element 12, the servo motors 15, 26, 37, and the blower 11. In addition, a digital camera 51, a rear seat air conditioning switch 53, and a temperature setting device 55 are connected to the electronic control device 50. The rear seat air conditioning switch 53 is operated by the occupant in order to blow the conditioned air from the rear seat outlet 31 toward the rear seat. The digital camera 51 captures an image of the driver's face in order to detect the driver's sleep. The temperature setter 55 is operated by the occupant in order to set a target value of the air temperature blown out from the outlets 22 and 31.

  Next, the operation of this embodiment will be described. The electronic control unit 50 executes the computer program according to the flowcharts shown in FIGS. The computer program is started when the ignition switch IG is turned on.

  First, in step 101a in FIG. 3, the timer and the flag Ft in the memory are reset. The flag Ft is a flag indicating that the timer is timing.

  Next, in step 101, an image of the driver's face taken by the digital camera 51 is captured. In the next step 102, based on the image of the driver's face, the driver's blink state (for example, the eye width before blinking, the eye width when closing the eye, the eye closing time when blinking) is detected, and this It is determined whether or not the driver is dozing based on the detected blink state. Note that the processing of step 102 is known in Japanese Patent Laid-Open No. 8-153288, and therefore a detailed description of the processing is omitted.

  Here, when the driver is not in a dozing state, if NO is determined in step 102, the timer and the flag Ft are reset in step 110, respectively. Next, it progresses to step 111 and seat air-conditioning mode is implemented. Hereinafter, processing in the seat air conditioning mode will be described with reference to FIG.

  In step 200, it is determined whether or not air conditioning of the rear seat side of the passenger compartment is required. When the rear seat side air conditioning switch 53 is turned off, it is determined that the air conditioning of the rear seat side of the vehicle interior is not required, and NO is determined in step 200.

  Next, the routine proceeds to step 210, where the branch door 25 is rotationally driven by the servo motor 26 to open the air inlet of the first branch duct 17 and close the air inlet of the second branch duct 18.

  Next, the routine proceeds to step 220 where the servo motor 15 is driven based on the target value set by the temperature setter 55 to adjust the rotation angle of the temperature control door 14. Here, the rotation angle and the target value of the temperature control door 14 are determined in advance so as to be specified one-to-one, and the air flow rate H is adjusted by adjusting the rotation angle of the temperature control door 14 as the target value decreases. {= Fa / (Fa + Fb)} is increased.

  Next, energization of the Peltier element 12 is started at step 230, and then a voltage Vt is applied to the electric motor of the blower 11 at step 240. Accordingly, the blower 11 sucks and blows out air in the passenger compartment through the suction port 10a. Then, a part of the blown air from the blower 11 flows into the heat absorbing portion 12a, and the blown air that has flowed in is cooled by the heat absorbing portion 12a. Further, the remaining blown air from the blower 11 flows into the bypass passage 13. Thereafter, the blown air that has passed through the bypass passage 13 and the blown air that has passed through the heat absorbing portion 12 a are mixed and flow into the first branch duct 17. Along with this, the air is blown out from the air outlets 22 of the seat back 21 and the seat cushion 20 to the driver's buttocks and back. Further, the air blown out from the blower 11 is blown out from the air intake port 10b toward the heat radiating portion 12b of the Peltier element 12.

  Thereafter, returning to step 101 in FIG. 3, as long as it is determined as NO in step 102 that the driver is not asleep, and NO is determined in step 200 in FIG. 4 that the rear seat air conditioning switch 53 is off, In the same manner as described above, the processes in steps 101, 102, and 110 in FIG. 3 and the processes in steps 200, 210, 220, 230, and 240 in FIG. 4 are repeated. Accordingly, the conditioned air is blown out from the air outlet 22 of the seat back 21 and the seat cushion 20 to the driver's buttocks and back.

  Thereafter, when an occupant sits on the rear seat and the occupant turns on the rear seat air-conditioning switch 53, it is determined as YES in step 200 because it is required to air-condition the rear seat side in the vehicle interior. That is, assuming that the condition that the conditioned air is blown out from the rear seat outlet 31 (second outlet) is reached, the process proceeds to step 250, and the branch door 25 is driven to rotate by the servo motor 25. The air inlets of the first and second branch ducts 17 and 18 are opened. Thereafter, the switching door 35 is rotationally driven by the servo motor 37 to open the rear seat opening 30b and close the head opening 30a. Further, in the same manner as described above, the processes of steps 220, 230, and 240 in FIG. 4 are performed.

  In this case, the blown air that has passed through the bypass passage 13 and the heat absorbing portion 12a is mixed and flows into the first and second branch ducts 17 and 18, respectively. The blown air that has flowed into the second branch duct 18 is blown out from the rear seat outlet 31 through the rear seat opening 30b and the ventilation passage 33a of the outlet grill 33. The blown air that has flowed into the first branch duct 17 is blown out from the air outlets 21 of the seat back 21 and the seat cushion 20 as described above.

  Next, returning to step 101 in FIG. 3, as long as it is determined as NO in step 102 that the driver is not asleep, and NO is determined in step 200 in FIG. 4 that the rear seat air conditioning switch 53 is off. In the same manner as described above, the processes in steps 101, 102, and 110 in FIG. 3 and the processes in steps 200, 210, 220, 230, and 240 in FIG. 4 are repeated. Along with this, the conditioned air is blown out from each of the outlets 21 of the rear seat outlet 31, the seat back 21 and the seat cushion 20.

  Thereafter, when the driver begins to fall asleep, it is determined as YES in Step 102. At this time, assuming that the driver needs to be awakened (that is, the condition that air-conditioned air is blown from the air outlet 44 (third air outlet) of the headrest 23 occurs), the driver's neck is as follows. Process to blow strong wind on.

  First, in step 104, the voltage applied to the electric motor of the blower 11 is set to the maximum voltage Vmax (> Vt). For this reason, the blower 11 blows with the maximum air volume.

  In the next step 105, the temperature control door 14 is rotationally driven by the servo motor 15 to close the air intake port 10c and the air intake port 10b of the heat absorption part 12a, respectively, and open the air intake port of the bypass passage 13.

  In the next step 106, the branch door 25 is rotationally driven by the servo motor to close the air inlet of the first branch duct 17 and open the air inlet of the second branch duct 18. Further, in the next step 106a, the servo door 37 rotates and drives the switching door 35 to open the head opening 30a and close the rear seat opening 30b. In addition, in step 106b, the energization of the Peltier element 12 is stopped.

  Then, the air blown out from the blower 11 is blown out from the outlet 44 of the headrest 23 to the driver's neck through the neck opening 30a and the ducts 40 and 42 through the bypass passage 13 and the second branch duct 18. .

  At this time, since air flows into the bypass passage 13 and air does not flow into the heat absorbing portion 12a, pressure loss due to the heat absorbing portion 12a does not occur. For this reason, a large amount of air is secured as the amount of air blown from the air outlet 44.

  Next, in step 107, it is determined whether or not the flag ft is in a reset state (that is, ft = “0”). At this time, since the flag ft is in the reset state, it is determined YES and the process proceeds to the next step 107b to start the time measurement by the timer. Then, in step 108, it is determined whether or not 1 minute or more has elapsed after the timer starts counting, and when 1 minute or more has not elapsed, NO is determined. Thereafter, the process proceeds to step 108b, and the flag ft is set (that is, ft = "1").

  Next, when the face image capturing process (step 101) is performed and it is determined that the driver is dozing (step 102: NO), steps 101, 102, 104, 105, 106, 106a, 106b are performed. Each process is performed in the same manner as described above. Thereafter, in step 107, since the flag ft is in the set state, it is determined as NO and the process proceeds to step 108. Here, if one minute or more has not elapsed since the timer started, NO is determined, the flag setting process of step 108a is performed, and the process returns to step 101. After that, when the driver's dozing state continues and one minute or more has not elapsed since the timer started, the processing of steps 101, 102, 104, 105, 106, 106a, 106b, 107, 107b, 108 is performed. It carries out similarly to the above-mentioned. Along with this, air is blown out from the air outlet 44 of the headrest 23 to the driver's neck.

  After that, when the driver's dozing state continues and more than 1 minute has passed since the timer started, in order to wake the driver, the driver's neck is subjected to a process for blowing cold air instead of strong wind. To do.

  Specifically, YES is determined in step 108, the process proceeds to step 108a, and the timer and the flag Ft are reset. Next, in step 109, the temperature control door 14 is rotationally driven by the servo motor 15 to open the air intake port 10c and the air intake port 10b of the heat absorption part 12a, respectively, and close the air intake port of the bypass passage 13. In the next step 109a, energization of the Peltier element 12 is started.

  Therefore, the blown air from the blower 11 flows into the air suction port 10c of the heat absorbing unit 12a, the heat absorbing unit 12a cools the blown air from the blower 11, and this cooled air passes through the ducts 18, 40, 42. The air is blown out from the air outlet 44 of the headrest 23 to the driver's neck.

  Further, the air blown out from the blower 11 is blown out from the air intake port 10b toward the heat radiating portion 12b of the Peltier element 12. For this reason, the heat radiating portion 12b radiates heat to the blown air from the blower 11, and the radiated blown air is blown out of the air conditioning duct.

  After that, as long as it is determined as YES that the driver's dozing state continues in step 102, the processes of steps 109, 109a, 101, and 102 of FIG. 3 are repeated. The cold air continues and is blown out from the air outlet 44 of the headrest 23 to the driver's neck.

  Thereafter, when the driver enters the awake state, the determination at step 102 is NO, the timer at step 110 and the flag ft are reset, the process proceeds to the next step 111, and the same seat air conditioning mode as described above is performed.

  According to the embodiment described above, since not only the air outlets 22 of the seat back 21 and the seat cushion 20 but also the air outlet 31 for the rear seat is provided, not only the front seat passenger but also the rear seat Air conditioned air can also be blown out to passengers.

  Furthermore, in this embodiment, since the air blower 11 and the Peltier element 12 are arrange | positioned inside the seat cushion 20, since it becomes unnecessary to introduce conditioned air from the outside using a duct, it suppresses the fall of ventilation volume. Can do.

  Moreover, since the blowing grill 33 is provided, the blowing direction of the air blown out from the rear seat outlet 31 can be freely adjusted.

(Other embodiments)
In carrying out the present invention, the vehicle seat air-conditioning apparatus is not limited to being applied to the front seat among the respective seats (that is, the front seat and the rear seat) arranged in two front and rear rows, but three or more rows in the front and rear direction. In a vehicle (for example, a wagon or a bus) in which each of the seats (for example, a front seat, an intermediate seat, or a rear seat) is arranged, a vehicle seat air conditioner may be applied to the front seat or the intermediate seat.

  In the above-described embodiment, the example in which the blower 11 is disposed inside the seat cushion 20 has been described. However, the present invention is not limited thereto, and the blower 11 may be disposed on the lower wall of the seat cushion 20. Or you may arrange | position on the back surface of the seat back 21. FIG.

  In the above-described embodiment, the example in which the branch door 25 is arranged at the g position in Step 250 has been described, but instead, the branch door 25 may be arranged at the c position in Step 250.

  In the above-described embodiment, the electronic control unit 50 closes the air intake port 12c and the air intake port 10b of the heat absorbing unit 12a by the temperature control door 14 when the driver determines that the driver is dozing. Although the example in which the air inlet of the passage 13 is opened has been described, the following may be used instead. A switch operated to increase the air volume is provided, and when this switch is operated, the electronic control unit 50 drives the temperature control door 14 by the servo motor 15, and the air intake port 12c and the air intake port of the heat absorption part 12a are driven. 10b is closed, and the air inlet of the bypass passage 13 is opened.

  Also. When the switch is added to the configuration of the above-described embodiment and the driver's dozing state is determined, or when the switch is operated, the temperature adjustment door 14 causes the air intake port of the heat absorption unit 12a to be operated. 12c and the air intake port 10b may be closed, and the air intake port of the bypass passage 13 may be opened.

  In the above-described embodiment, an example in which it is determined whether or not the occupant is dozing based on the image of the driver's face is determined. However, the present invention is not limited thereto, and the driver's behavior (for example, steering operation), Whether the occupant is dozing or not may be determined based on the detection result by detecting respiration and heart rate.

  In the above-described embodiment, an example using the Peltier element 12 that generates cold air as a heat exchanger has been described. However, the present invention is not limited thereto, and a cooling heat exchanger that cools air by evaporation of refrigerant may be used. Moreover, you may use not only the heat exchanger for a cooling but the heat exchanger for a heating which heats air.

  In the above-described embodiment, the example in which the fixed period for executing the driver awakening mode is 1 minute has been described. However, the fixed period for executing the driver awakening mode may be set to a time other than 1 minute.

  In the above-mentioned embodiment, when air is blown out from the rear seat outlet 31, the example in which the air is stopped from being blown out from the outlet 44 of the headrest 23 has been described. When air is blown out from the air outlet 31, air may be blown out from the air outlet 44 of the headrest 23.

  In the above-described embodiment, the example in which the rotation angle of the temperature control door 14 is changed when adjusting the temperature of the air blown into the vehicle interior is described. Thus, the voltage applied to the Peltier element 12 may be changed to change the cooling capacity of the heat absorbing part 12a.

  In the above-described embodiment, the first electrode portion arranged in the air conditioning duct 10 is caused to act as the heat absorbing portion 12a, and the second electrode portion arranged outside the air conditioning duct 10 is caused to act as the heat radiating portion 12b. Although the example has been described, the present invention is not limited thereto, and the polarity of the voltage applied to the first and second electrode portions is changed, and the first electrode portion disposed in the air conditioning duct 10 is caused to act as the heat radiating portion 12b. And you may make it make the 2nd electrode part arrange | positioned outside the air-conditioning duct 10 act as the heat absorption part 12a.

  Here, the polarity of the voltage applied to the first and second electrode portions may be switched in accordance with the operation to the temperature setting device 55 so that the cooling and heating can be switched, respectively. You may make it adjust the capability of each of a cooling and heating by changing the voltage level given to 2 electrode parts.

  In the above-described embodiment, the example in which the rear seat outlet 31 is provided in the seat back 21 has been described. However, the present invention is not limited thereto, and the rear seat outlet 31 may be provided in the headrest 23.

  In the above-described embodiment, the example in which the air outlet 44 that blows air to the occupant's neck is provided in the headrest 23 has been described.

  In the above-described embodiment, the example in which the air outlets 44 and 22 are provided as the air outlets for blowing air to the driver's seat occupant has been described, but instead of this, one of the air outlets 44 and 22 may be deleted. Good.

  In the above-described embodiment, an example in which the blow grill 33 is formed in a spherical shape has been described. Instead, a plurality of plate members are used by using a plurality of plate members that are rotatably supported. You may use what changes a ventilation direction by changing the angle of.

  In the above-described embodiment, the example using the one that changes the blowing direction by changing the angle of the blowing grill 33 according to the operation of the occupant has been described, but instead, the blowing grill 33 is rotated using an electric motor. You may comprise as follows.

It is a mimetic diagram showing a schematic structure of one embodiment of a vehicular seat air-conditioner of the present invention. FIG. 2 is an enlarged view around a rear seat outlet in FIG. 1. It is a flowchart which shows the control processing of the electronic controller in FIG. It is a flowchart which shows the control processing of the sheet | seat air-conditioning mode in FIG. 1 in detail.

Explanation of symbols

21 ... Seat back, 31 ... Air outlet, 17, 18 ... Branch duct,
31 ... outlet, 33 ... outlet grill.

Claims (3)

Air conditioning ducts (10, 17, 18, 40, 42);
A blower (11) disposed in a seat and for blowing air in the air conditioning duct;
A temperature adjusting means (12, 13, 14) that is arranged in the air conditioning duct and adjusts the temperature of the air blown from the blower;
A first air outlet (22) disposed on the downstream side of the temperature adjusting means and provided in the seat and for blowing out air adjusted by the temperature adjusting means toward an occupant seated on the seat; A vehicle seat air conditioner comprising:
A second air outlet (31) which is arranged downstream of the temperature adjusting means and is provided in the seat and which blows out the air whose temperature is adjusted by the temperature adjusting means toward an occupant seated on the rear seat of the seat. )When,
A blowing direction adjusting member (33) that is rotatably supported and adjusts the blowing direction of the air blown out from the second blowing outlet;
A vehicle seat air conditioner comprising: A door (35) for opening and closing the second outlet;
Drive means (37) for driving the door;
Control means (50) for controlling the driving means to open the second air outlet by the door when a condition for blowing air from the second air outlet occurs;
The vehicle seat air conditioner according to claim 1, comprising: A third outlet (44) disposed on the downstream side of the temperature adjusting means and provided in the seat, for blowing out the air temperature-adjusted by the temperature adjusting means to the occupant's neck of the seat;
The door is provided to open the other outlet when one of the second and third outlets is closed.
The control means controls the driving means to open the second air outlet by the door when a condition for blowing air from the second air outlet occurs, and the third air outlet The vehicle seat air-conditioning apparatus according to claim 2, wherein the driving means is controlled to open the third outlet through the door when a condition for causing air to blow out is generated.

Images