JP3709951B2 - Air conditioning system for automobile seats - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in an air conditioner for automobile seats.
[0002]
[Prior art]
As an air conditioner using a thermoelectric element, for example, Japanese Patent Publication No. 4-45365 “Electronic Refrigeration Device” is known.
The above-described technique is intended to provide an electronic refrigeration apparatus that can operate efficiently while suppressing power consumption. As shown in FIG. A blower 7 provided at the inlets 1 and 2, an air volume adjustment damper 8 provided downstream of the air blower 7, and an electronic refrigeration unit 5 that cools or heats the air adjusted by the air volume adjustment damper 8.
[0003]
[Problems to be solved by the invention]
In the above technique, in order to perform the minimum power control, the controller 6 determines the supply power to the blower 7, the opening degree of the damper 8 according to the blown amount of the blower 7, and the supply power to the Peltier element of the electronic refrigeration unit 5. Therefore, complicated control is required, and the manufacturing cost of the controller 6 increases.
Therefore, an object of the present invention is to provide a temperature control device for an automobile seat that suppresses power consumption and is easy to perform temperature control.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, claim 1 of the present invention comprises a blower that pumps air in a vehicle compartment to an air blowing hole opened in a seat, and heats the air being pumped between the blower and the air blowing hole. Or, in an automobile seat air conditioning apparatus, comprising: a sheet temperature adjusting means for cooling; and an air volume adjusting damper provided between the blower and the sheet temperature adjusting means for adjusting an air volume to the sheet temperature adjusting means. The air conditioner for seats consists of a blower control unit that operates the blower at a constant maximum speed, a temperature control unit that controls the temperature adjustment capability of the seat temperature adjustment means, and a damper control unit that controls the angle of the air volume adjustment damper. The damper control unit controls the air volume adjusting damper to an angle at which the total air volume of the blower is supplied to the air blowing hole of the seat when the seat temperature adjusting means is not operated .
[0005]
In order to control the temperature control of the automotive seat temperature control device, the fan control unit operates the fan at a constant maximum speed, the temperature control unit adjusts the temperature control capability of the seat temperature control means, and the damper control unit controls the air volume. Change the angle of the adjustment damper to adjust the air volume. That is, since the blower is operated at a constant maximum speed, the blower control unit may be simple, and since the air volume by the blower increases, a large amount of air passes through the seat temperature adjustment means, so the air conditioner for automobile seats The heat exchange efficiency of the sheet can be increased, and the heating or cooling capacity of the sheet temperature adjusting means can be reduced, so that the power consumption of the sheet temperature adjusting means can be suppressed.
[0006]
Da damper control unit, when not actuated the seat temperature control means, by controlling the total air volume of the air-flow control damper blower angle supplied to the seat of the air outlet hole, sufficient air from the air outlet hole of the sheet It can be blown out and the sweat of the person sitting on the seat can be dried quickly.
[0007]
According to a second aspect of the present invention, the seat is composed of a seating portion and a backrest portion, and a duct for supplying air from the downstream side of the seat temperature adjusting means to the air blowing holes of the seating portion and the backrest portion is branched. A distribution damper that distributes air flowing to the seating portion side and the backrest portion side is provided at the branch position.
[0008]
By setting the distribution damper to an intermediate position, air flows through both the seating portion and the backrest portion.
Further, the distribution damper is moved down to the seating portion or the backrest portion side, and one side is closed, thereby allowing air to flow to one of the seating portion or the backrest portion.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of an automobile seat according to the present invention. The seat 1 includes a seat cushion 2 that is a seating portion for seating, a seatback 3 that is a backrest portion that serves as a backrest, and the seatback 3. And a headrest 4 provided on the top of the head.
The seat cushion 2 and the seat back 3 have air blowing holes 7 (... indicate a plurality, the same applies hereinafter) in the outer skins 5 and 6, respectively.
[0010]
FIG. 2 is a system diagram showing a temperature control air supply device for an automobile seat according to the present invention, and the temperature adjustment air supply device 10 which is an air conditioner for an automobile seat pumps the air sucked from the air inlet 11 downstream. A blower 12 serving as a blower, a first damper 13 serving as an air volume adjusting damper that changes a distribution ratio of the air flowing downstream of the blower 12, and a temperature serving as a sheet temperature adjusting means provided downstream of the first damper 13. The adjustment mechanism 20, the seat cushion exhaust duct 14 for discharging the air passing through the temperature adjustment mechanism 20 from the lower portion of the seat cushion 2, the seat back exhaust duct 15 for discharging the air from the rear portion of the seat back 3, and these exhaust ducts A second damper 16 that is a distribution damper that changes a distribution ratio of the air flowing to 14, 15, and a controller 50 for controlling the temperature and the air volume of the air; Ranaru. Reference numeral 17 denotes an exhaust port.
[0011]
For convenience of explanation, the angle of the first damper 13 is represented by an angle θA based on the position where the passage toward the heat exchanger 22 is fully closed.
The angle of the second damper 16 is represented by an angle θB based on the position where the passage toward the seat back exhaust duct 15 is fully closed.
[0012]
The temperature adjustment mechanism 20 includes a thermoelectric element 21 that can generate and absorb heat when energized, and a heat exchanger 22 for transferring heat between the thermoelectric element 21 and the air that has been sent. 23.
[0013]
The thermoelectric element 21 utilizes a Peltier effect in which heat other than Joule heat is generated (or absorbed) at these contact points when different kinds of conductors are coupled and current flows through these conductors, and is also referred to as a Peltier element. .
When a current in the direction opposite to the above is passed through the thermoelectric element 21, heat is absorbed (or generated) at the contact.
If two contacts are provided, one generates heat and the other absorbs heat by the same amount as the amount of heat generated.
[0014]
The controller 50 includes a blower control unit 52 that is a blower control unit that causes the blower 12 to operate the blower 12 at a constant maximum speed (a constant maximum rotational speed) via the power supply unit 51, and a thermoelectric element 21 via the power supply unit 53. A temperature control unit 54 that controls the temperature control capability by changing the supplied power, a main air volume control unit 56 that is a damper control unit that controls the angle of the first damper 13 via the first damper drive unit 55, and a first The auxiliary air volume control unit 58 controls the angle of the 2 damper 16 via the second damper driving unit 57. A temperature sensor 61 is disposed in the seat cushion exhaust duct 14 and is connected to the temperature control unit 54. 62 is for setting the temperature, the air volume of air discharged from the air discharge holes 14b, 15b, and the air volume ratio between the air discharge holes 14b and the air discharge holes 15b to a desired one. 54 and the sub air volume control unit 58.
[0015]
The blower control unit 52 sends a constant power signal SC to the power supply unit 51. Thus, the power supply unit 51 supplies constant power to the blower 12 based on the constant power signal SC, and causes the blower 12 to operate at a constant maximum rotational speed.
[0016]
The temperature control unit 54 sends a power signal SV to the power supply unit 53 based on the temperature signal ST from the temperature sensor 61 and the set temperature signal ET from the temperature air volume setting means 62.
Accordingly, the power supply unit 53 supplies predetermined power for obtaining a set temperature to the thermoelectric element 21 based on the power signal SV, and generates (or absorbs) heat by the thermoelectric element 21. At the same time, the temperature control unit 54 sets the air discharged from the air discharge holes 14b and 15b to the set temperature based on the set temperature signal ET, according to the power supplied to the thermoelectric element 21, and the main air volume control unit 56. The air volume signal SW is sent to.
[0017]
The main air volume control unit 56 sends the first damper driving signal SD1 to the first damper driving unit 55 based on the air volume signal SW.
The first damper drive section 55 tilts the first damper 13 to a predetermined angle θA corresponding to the set air volume based on the first damper drive signal SD1 to adjust the air volume toward the exhaust ducts 14 and 15 side.
[0018]
The sub air volume control unit 58 sends the second damper drive signal SD2 to the second damper drive unit 57 by the set air volume ratio signal EW from the temperature air volume setting means 62. As a result, the second damper drive unit 57 inclines the second damper 16 to a predetermined angle θB corresponding to the set air volume ratio based on the second damper drive signal SD2, and the seat cushion exhaust duct 14 and the seat back exhaust duct 15 Adjust the air flow rate to and from.
[0019]
FIG. 3 is a plan view of the seat cushion according to the present invention. The seat cushion 2 includes a pair of seat rails 31 and 32, a seat frame 33 attached to the seat rails 31 and 32, and an attached seat frame 33. The seat spring 34.
[0020]
The blower 12 of the temperature-controlled air supply device 10 (see FIG. 2) is provided at the lower front part of the seat cushion 2 and has a temperature adjusting mechanism 20 directly connected to the rear part of the blower 12.
The seat cushion exhaust duct 14 has a U-shape in plan view, and has air discharge holes 14 b... And ear portions 14 c for attaching to the seat springs 34 with wires or the like, and via a flexible intermediate duct 18. This is connected to the temperature adjustment mechanism 20.
[0021]
The intermediate duct 18 branches into a first pipe portion 18a connected to the seat cushion exhaust duct 14 and a second pipe portion 18b connected to the seat back exhaust duct 15 (see FIG. 2).
[0022]
FIG. 4 is a front view of the seat back according to the present invention. The seat back 3 includes a sub seat frame 41 and seat springs 42 attached to the sub seat frame 41.
The seat back exhaust duct 15 has an H-shape when viewed from the front, has air discharge holes 15b, and ears 15c for attaching to the seat springs 42 with wires or the like. 18b is connected. Reference numeral 46 denotes an attachment portion provided on the sub seat frame 41 in order to fix the intermediate duct 18.
[0023]
FIG. 5 is a longitudinal sectional view of a seat according to the present invention. The seat cushion 2 includes a pad 35 that retains the seat shape and acts as a cushion body, and a cover pad that has air permeability that covers the outside of the pad 35. 36 and a skin 5 that covers the outside of the cover pad 36.
[0024]
The pad 35 has vent holes 35a connected to the air discharge holes 14b of the seat cushion exhaust duct 14, and is attached to the seat spring 34 (see FIG. 3).
As a material of the pad 35, urethane foam is suitable.
[0025]
The seat back 3 includes a pad 43 that retains the seat shape and acts as a cushion body, a cover pad 44 having air permeability that covers the outside of the pad 43, and a skin 6 that covers the outside of the cover pad 44. And have.
[0026]
The pad 43 has vent holes 43a connected to the air discharge holes 15b of the seat back exhaust duct 15, and is attached to the seat spring 42 (see FIG. 4).
As a material of the pad 43, urethane foam is suitable.
[0027]
The air that has passed through the vent hole 35a passes through the cover pad 36 and is blown out from the air blowing holes 7 (see FIG. 1) of the skin 5.
The blown air warms or cools the seated person's seat and legs.
[0028]
The air that has passed through the vent hole 43a passes through the inside of the cover pad 44 and blows out from the air blowing holes 7 (see FIG. 1) of the skin 6.
The blown air warms or cools the seated person's waist and back.
[0029]
Next, the operation of the temperature-controlled air supply device 10 described above will be described.
6 (a) to 6 (d) are system diagrams showing the operation of the temperature-controlled air supply device according to the present invention. FIG. 6 (a) operates the temperature adjustment mechanism 20 and moves toward the seat 1 (see FIG. 1). (B) to (d) are states in which the air flow toward the seat 1 (see FIG. 1) is adjusted by the first and second dampers 13 and 16 without operating the temperature adjustment mechanism 20. Show.
[0030]
In (a), the 1st damper 13 is set to the angle from which the air volume to the heat exchanger 22 side decreases among the heat exchangers 22 and 23.
When the blower 12 is actuated, the air in the passenger compartment is sucked from the intake port 11, and is reduced to the heat exchanger 22 side by the first damper 13 provided downstream of the blower 12, and is largely divided to the heat exchanger 23 side.
The air suction amount of the blower 12 at this time is set to W1.
[0031]
One air passes through the heat exchanger 22 of the temperature adjustment mechanism 20.
The thermoelectric element 21 is energized in advance and generates heat (or absorbs heat). This heat is exchanged with air by the heat exchanger 22.
As a result, the air becomes warm air (or cold air) and is diverted by the second damper 16 downstream of the temperature adjustment mechanism 20.
[0032]
One of the air divided by the second damper 16 is discharged from the air discharge holes 14b of the seat cushion exhaust duct 14 provided in the seat cushion 2 (see FIG. 2).
At this time, the air discharge amount (air flow rate) from the air discharge holes 14b.
The other air is discharged from the air discharge holes 15b of the seat back exhaust duct 15 provided in the seat back 3 (see FIG. 2).
The amount of air discharged (air volume) from the air discharge holes 15b at this time is W3.
[0033]
The other air that has passed through the first damper 13 passes through the heat exchanger 23.
In the heat exchanger 23, heat equal to the amount of generated heat is exchanged due to the characteristics of the thermoelectric element 21.
As a result, the air becomes cold air (or warm air) and is exhausted from the exhaust port 17 to the vehicle interior or exterior.
[0034]
As described above, the air passing through the heat exchanger 22 can be obtained by energizing the thermoelectric element 21 to operate the temperature adjusting mechanism 20 and reducing the air volume toward the seat 1 (see FIG. 1) by the first damper 13. Heat exchange is promoted, and sufficiently warm (or cooled) air can be discharged from the seat cushion exhaust duct 14 and the seat back exhaust duct 15.
Further, by changing the angle of the second damper 16, the ratio of the air volume W2 and W3 can be appropriately changed according to the preference of the seated person.
[0035]
In (b), the first damper 13 is tilted to one side so as to supply the total air volume (equal to the air intake volume W1) of the blower 12 to the heat exchanger 22 side.
When the blower 12 is operated, the air in the vehicle compartment is sucked from the intake port 11 and passes only inside the heat exchanger 22 of the temperature adjustment mechanism 20 by the first damper 13.
[0036]
Since the thermoelectric element 21 is not energized, the air is not exchanged by the heat exchanger 22 and is diverted by the second damper 16 at the same temperature.
One of the air divided by the second damper 16 is discharged from the air discharge holes 14b of the seat cushion exhaust duct 14 of the seat cushion 2 (see FIG. 2).
The amount of air discharged (air volume) from the air discharge holes 14b at this time is W4.
[0037]
The other air is discharged from the air discharge holes 15b of the seat back exhaust duct 15 of the seat back 3 (see FIG. 2).
The amount of air discharged (air volume) from the air discharge holes 15b at this time is W5.
By changing the angle of the second damper 16, the ratio of the air volumes W4 and W5 can be changed as appropriate according to the preference of the person who is seated.
[0038]
In (c), the first damper 13 is tilted to one side so as to supply the total air volume W1 of the blower 12 to the heat exchanger 22 side.
When the blower 12 is operated, the air in the vehicle compartment is sucked from the intake port 11 and passes only inside the heat exchanger 22 of the temperature adjustment mechanism 20 by the first damper 13.
[0039]
Then, the air passes through the heat exchanger 22, is sent by the second damper 16 only to the seat cushion exhaust duct 14 of the seat cushion 2 (see FIG. 2), and is discharged from the air discharge holes 14b.
If the air discharge amount (air flow rate) from the air discharge holes 14b at this time is W6, W6 = W1, and sufficient air can be blown from the seat cushion 2 (see FIG. 5).
[0040]
In (d), the first damper 13 is tilted to one side so as to supply the total air volume W1 of the blower 12 to the heat exchanger 22 side.
When the blower 12 is operated, the air in the vehicle compartment is sucked from the intake port 11 and passes only inside the heat exchanger 22 of the temperature adjustment mechanism 20 by the first damper 13.
[0041]
Then, the air passes through the heat exchanger 22, is sent only to the seatback exhaust duct 15 of the seatback 3 (see FIG. 2) by the second damper 16, and is discharged from the air discharge holes 15b.
If the air discharge amount (air flow rate) from the air discharge holes 15b at this time is W7, W7 = W1, and sufficient air can be blown from the seat back 3 (see FIG. 5).
[0042]
As described above, the temperature control air supply device 10 includes the blower control unit 52 that operates the blower 12 at a constant maximum speed, the temperature control unit 54 that controls the temperature control capability of the temperature adjustment mechanism 20, and the angle of the first damper. In order to control the temperature of the temperature-controlled air supply device 10, the blower control unit 52 operates the blower 12 at a constant maximum speed and the temperature control unit 54. The temperature adjustment capability of the temperature adjustment mechanism 20 is adjusted by the above, and the air volume is adjusted by the main air volume control unit 56 by changing the angle of the first damper 13. That is, since the blower 12 is operated at a constant maximum speed, the blower 12 control unit 52 may be simple, and since the air volume by the blower 12 increases, a large amount of air passes through the temperature adjustment mechanism 20, so that the temperature Since the heat exchange efficiency of the air conditioning supply device 10 can be increased and the heating or cooling capacity of the temperature adjustment mechanism 20 can be reduced, the power consumption of the temperature adjustment mechanism 20 can be suppressed.
[0043]
Further, the main air volume control unit 56 controls the first damper 13 to an angle at which the total air volume of the blower 12 is supplied to the air blowing hole 7 of the seat 1 (see FIG. 1) when the temperature adjusting mechanism 20 is not operated. As a result, sufficient air can be blown out from the air blowing hole 7 of the seat 1 (see FIG. 1), and sweat or the like of a person sitting on the seat 1 (see FIG. 1) can be dried quickly. .
[0044]
Further, as shown in FIG. 2, since the second damper 16 is provided at the branch position between the first pipe portion 18a and the second pipe portion 18b of the intermediate duct 18, the second damper 16 is set at the intermediate position. Air can flow through both the seat cushion 2 and the seat back 3.
[0045]
Further, the second damper 16 is tilted to the seat cushion 2 side or the seat back 3 side and one side is closed, so that air can flow to the other side of the seat cushion 2 or the seat back 3.
[0046]
FIG. 7 is a flowchart showing temperature control of the temperature-controlled air supply device according to the present invention, which will be described in the order of step numbers STxx. (Refer to Fig. 2 for symbols)
ST01: The blower 12 is started.
ST02 ... The blower 12 is operated at a constant maximum rotational speed.
[0047]
ST03 ... The temperature and air volume of the air blown out from the air discharge holes 14b ..., 15b ... and the air volume ratio between the air discharge holes 14b ... and the air discharge holes 15b ... are set by the temperature air volume setting means 62. (For example, T1 ° C. is set as the set temperature of the blown-out air, and T 1 ± α ° C. (α is a positive value) as the temperature range to be controlled. Also, the set air volume is, for example, W 1 liter / hour. )
[0048]
ST04 ... The temperature detected by the temperature sensor 61 is, for example, T2 ° C, and the boundary temperature whether the temperature adjusting mechanism 20 is operated at the set temperature T1 ° C is TB ° C, and whether or not | T2-T1 | ≧ TB. to decide.
If | T2−T1 | ≧ TB (YES), the process proceeds to ST05.
If | T2−T1 | ≧ TB is not satisfied (NO), the process proceeds to ST06.
[0049]
ST05... It is determined whether W1 <WB, where the boundary air volume for determining whether to operate the temperature adjusting mechanism 20 with the set air volume W1 liter / hour is WB liter / hour.
If W1 <WB is not satisfied (NO), the process proceeds to ST06.
If W1 <WB (YES), the process proceeds to ST08.
[0050]
ST06... The first damper 13 is set to a predetermined angle θA = θ3.
ST07 ... The second damper 16 is set to a predetermined angle θB = θ4. After this, the process proceeds to ST14.
ST08 ... A predetermined power is supplied to the thermoelectric element 21.
ST09 ... The first damper 13 is set to a predetermined angle θA = θ1.
Here, θ1 <θ3.
ST10 ... The second damper 16 is set to a predetermined angle θB = θ2.
[0051]
ST11... (T1-α) ° C. ≦ T2 ° C ≦ (T1 + α) ° C., that is, whether the detected temperature T2 ° C. is within the set temperature range T1 ± α ° C. is determined.
If (T1-α) ° C. ≦ T2 ° C. ≦ (T1 + α) ° C. is not satisfied (NO), the process proceeds to ST12.
If (T1-α) ° C. ≦ T2 ° C. ≦ (T1 + α) ° C. (YES), the process proceeds to ST13.
[0052]
ST12 ... The power supply to the thermoelectric element 21 is adjusted. Further, the angle of the first damper 13 is changed to adjust the air volume.
Thereafter, the process returns to ST11.
ST13 ... The power supply to the thermoelectric element 21 is stopped.
ST14 ... The blower 12 is stopped.
[0053]
In the embodiment shown in FIG. 6A of the present invention, the first damper 13 is tilted toward the heat exchanger 22 to reduce the amount of air flowing to the heat exchanger 22. Alternatively, when the cooling capacity is large, the present invention is not limited to this. Even if the angle of the first damper 13 is greatly changed so as to satisfy the set temperature and the set air volume while operating the blower 12 at a constant maximum rotation speed. There is no problem.
[0054]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
The air conditioner for an automobile seat according to claim 1 includes an air conditioner for an automobile seat, a fan control unit that operates the blower at a constant maximum speed, a temperature control unit that controls the temperature adjustment capability of the seat temperature adjusting means, and an air volume adjustment damper. A damper control unit that controls the angle of the air flow , and the damper control unit controls the air volume adjusting damper to an angle at which the total air volume of the blower is supplied to the air blowing hole of the seat when the seat temperature adjusting means is not operated . In order to control the temperature control of the automotive seat temperature control device, the fan control unit operates the fan at a constant maximum speed, the temperature control unit adjusts the temperature control capability of the seat temperature control means, and the damper control unit Adjust the air volume by changing the angle of the air volume adjustment damper. That is, since the blower is operated at a constant maximum speed, the blower control unit may be simple, and since the air volume by the blower increases, a large amount of air passes through the seat temperature control means, so that the temperature control for automobile seats Since the heat exchange efficiency of the apparatus can be increased and the heating or cooling capacity of the sheet temperature adjusting means can be reduced, the power consumption of the sheet temperature adjusting means can be suppressed.
[0055]
Da damper control unit, when not actuated the seat temperature adjusting means, since the controls to angle supplying all air volume of the air-flow control damper blower to the seat of the air outlet hole, sufficient from an air outlet hole of the sheet Air can be blown out, and sweat and the like of a person sitting on the seat can be dried quickly.
[0056]
The air conditioner for an automobile seat according to claim 2 comprises a seat having a seating portion and a backrest portion, and a duct for sending air from the downstream side of the seat temperature control means to the air blowing holes of the seating portion and the backrest portion. Since the distribution damper that distributes the air flowing to the seating part side and the backrest part side is provided at the branching position of this duct, air is supplied to the seating part and the backrest part by setting the distribution damper to the intermediate position. The air can be flowed to one of the seating part or the backrest part by tilting the distribution damper to the seating part or the backrest part side and closing one side, depending on the preference of the seated person The air volume to be distributed can be changed finely.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vehicle seat according to the present invention. FIG. 2 is a system diagram showing a temperature control air supply device for a vehicle seat according to the present invention. FIG. 3 is a plan view of a seat cushion according to the present invention. 4] Front view of the seat back according to the present invention [FIG. 5] Longitudinal sectional view of the seat according to the present invention [FIG. 6] System diagram showing the operation of the temperature control air supply device according to the present invention [FIG. Flow diagram showing temperature control of temperature control air supply device
DESCRIPTION OF SYMBOLS 1 ... Seat, 2 ... Seating part (seat cushion), 3 ... Backing part (seat back), 7 ... Air blowing hole, 10 ... Car seat air conditioner (temperature control air supply apparatus), 12 ... Blower (blower) , 13 ... Air volume adjustment damper (first damper), 16 ... Distribution damper (second damper), 18 ... Duct (intermediate duct), 20 ... Seat temperature adjustment means (temperature adjustment mechanism), 52 ... Blower control unit (blower control) Part), 54 ... temperature control part, 56 ... damper control part (main air volume control part).

Claims (2)

A blower that pumps air in the passenger compartment to an air blowing hole opened in the seat, a sheet temperature adjusting means that heats or cools the air that is being pumped between the blower and the air blowing hole, and the blower and the seat temperature control in automotive seat air-conditioning system and a flow rate adjusting damper provided for adjusting the air volume to the seat temperature adjusting means between the means,
The air conditioner for an automobile seat includes a blower control unit that operates the blower at a constant maximum speed, a temperature control unit that controls the temperature adjustment capability of the seat temperature adjustment means, and a damper control unit that controls the angle of the air volume adjustment damper; equipped with a,
The damper control unit, when not actuated the seat temperature control means, for automobile seat you, characterized in that the air flow regulating damper is all air volume of the blower used for controlling the angle to be supplied to the seat of the air outlet hole air conditioning equipment. The seat is composed of a seating portion and a backrest portion, and a duct that feeds air from the downstream side of the seat temperature control means is branched into the air blowing holes of the seating portion and the backrest portion, and the duct is branched to a position where the duct branches. seat side and claim 1 Symbol placement car seat air-conditioning system, characterized in that a distribution damper for distributing air flow to the back support part side.

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