JP2013147061A - Vehicle air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform comfortable zone air conditioning, while simplifying a system, reducing cost, and saving energy by reducing air-conditioning load.SOLUTION: A vehicle air conditioner includes: an air-conditioning apparatus 11 including a heat exchanging part (evaporator 18, heater core 19) that converts air sucked into an air passage 13 by a blower 17 to desired conditioned air and blowing it into a cabin 2 through an outlet; inlets 30A, 30B arranged near seats of occupants; and a duct 40 that connects the inlets 30A, 30B with the air passage 13 of the air-conditioning apparatus 11. When there is an occupant in a front seat, the conditioned air blown out from the vents 22a, 22b in the outlet is directed toward the inlets 30A, 30B.

Description

  The present invention relates to a vehicle air conditioner capable of performing zone air conditioning (personal air conditioning) in which a part of a passenger compartment, for example, a passenger's surroundings is an air conditioning region.

  2. Description of the Related Art Conventionally, as a vehicle air conditioner, a system that performs zone air conditioning that air-conditions only the occupant's surroundings rather than the entire vehicle interior has been proposed.

  As a first conventional example of such a system, there is one disclosed in Patent Document 1. As shown in FIG. 11, the vehicle air conditioner 100 includes a suction port 102 opened on the upper surface side of the seat cushion 101 a of the seat 101, an air outlet 103 opened above the headrest 101 c of the seat 101, and a suction A blower passage 104 that communicates between the mouth 102 and the outlet 103 is provided. A blower 105, an evaporator 106, and a heater 107 are disposed in the air passage 104.

  According to the first conventional example, the air in the passenger compartment is sucked from the suction port 102 of the seat cushion 101a. The sucked air is converted into conditioned air at a desired temperature by the evaporator 106 and the heater 107. This conditioned air is blown out from the air outlet 103 above the headrest 101c. The blown air-conditioning air passes through the occupant and is again sucked from the suction port 102 of the seat cushion 101a.

  By such circulation of the conditioned air, a strong flow of the conditioned air is formed around the occupant, thereby realizing zone air conditioning. Zone air conditioning improves immediate cooling and immediate warming.

  As a second conventional example, there is one disclosed in Patent Document 2. As shown in FIG. 12, the vehicle air conditioner 110 includes an air conditioner (not shown) disposed in the instrument panel and a seat air conditioner 111. The seat air conditioner 111 includes a first suction port 113 opened at the upper part of the seat back 112b of the seat 112, a first air outlet 114 opened at the lower part of the seat back 112b, the first suction port 113, and the first blower. The 1st ventilation path 115 which connects between the exits 114, the 2nd inlet 120 opened on the lower surface of the seat cushion 112a, the 2nd outlet 121 opened on the upper surface of the seat cushion 112a, and the 2nd inlet 120 And a second air passage 122 communicating between the second air outlets 121.

  Blowers 116 and 123 and heat exchangers 117 and 124 are disposed in the first air passage 115 and the second air passage 122, respectively. Below the second suction port 120, the end of the duct 130 led from the air conditioner is opened.

  According to this second conventional example, the conditioned air that has been air-conditioned to the desired temperature in the air conditioner is blown out from the front of the passenger compartment. The blown-out conditioned air is sucked from the first suction port 113 of the seat back 112b through the periphery of the occupant. As a result, the conditioned air is collected and the conditioned air flowing in the passenger compartment space behind the first suction port 113 is suppressed. The conditioned air sucked from the first suction port 113 passes through the heat exchanger 117 and is blown out from the first air outlet 114 of the seat back 112b into the vehicle interior. In addition, the conditioned air that has been air-conditioned to a desired temperature in the air conditioner is blown out from the duct 130 below the seat cushion 112a. The blown-out conditioned air is sucked from the second suction port 120 of the seat cushion 112a. The sucked conditioned air passes through the heat exchanger 124 and is blown out from the second air outlet 121 of the seat cushion 112a into the vehicle interior. The conditioned air blown from the first air outlet 114 and the second air outlet 121 is discharged from the vicinity of the occupant into the passenger compartment, mixed with air that has not been air conditioned, and returned to the air conditioner.

  By such circulation of the conditioned air, a strong flow of the conditioned air is formed around the occupant, thereby realizing zone air conditioning. Zone air conditioning improves immediate cooling and immediate warming.

Japanese Patent No. 3301109 (Japanese Patent Laid-Open No. 5-286346) JP 2007-126047 A

  However, in the vehicle air conditioner 100 of the first conventional example, it is necessary to arrange the evaporator 106 and the heater 107 dedicated to the zone air conditioning, and thus there is a problem that the system becomes complicated and expensive.

  In the vehicle air conditioner 110 of the second conventional example, the conditioned air is produced using a heat exchanger of an air conditioner (not shown) that performs overall air conditioning. The conditioned air blown out from the second outlet 121 flows through the passenger compartment only by the inside air suction force of the air conditioner and is returned to the air conditioner. For this reason, the air-conditioning wind that has been largely lost in the process of passing through the passenger compartment is returned to the air conditioner, which causes a problem that the air-conditioning load of the air conditioner is large and it is difficult to obtain an energy saving effect. In addition, the conditioned air blown from the first air outlet 114 and the second air outlet 121 of the seat 112 is sucked from the first air inlet 113 and the second air inlet 120 of the seat 112 closer to the inside air inlet of the air conditioner. It is easy. Then, since the conditioned air blown from the first blower outlet 114 and the second blower outlet 121 of the seat 112 does not return to the air conditioner, a circulation flow of blast that is not at a desired temperature is formed. Therefore, in order to realize comfortable zone air-conditioning, the heat exchangers 117 and 124 are indispensable components in the seat air-conditioning apparatus 111, and the system becomes complicated and expensive as in the first conventional example. .

  Therefore, the present invention has been made in view of the above circumstances, and it is a comfortable zone while simplifying the system and reducing the cost and increasing the amount of air collected at the suction port provided around the seat. It aims at providing the air-conditioner for vehicles which can perform air conditioning.

  According to one aspect of the present invention, an air conditioner that converts air sucked into a blower passage by a blower into a desired conditioned air by a heat exchanging unit and blows it into a passenger compartment through a blowout port, and around the seating of a passenger An air conditioner that has a suction port that is arranged and a duct that communicates between the suction port and the air passage of the air conditioner and blows out from a vent outlet among the outlets when the occupant is in the front seat The gist of the invention is that it is a vehicle air conditioner that controls the direction of the wind in the direction of the air inlet.

  According to the present invention, the conditioned air blown into the passenger compartment from the air conditioner is sucked from the suction port located in the vicinity of the occupant's seating. This collects the conditioned air and suppresses the conditioned air flowing backward from the suction port. The conditioned air sucked from the suction port is returned to the air conditioner through the duct. By such circulation of the conditioned air, a comfortable flow of the conditioned air is formed around the occupant and zone air conditioning is formed.

  As described above, it is possible to provide a vehicle air conditioner that can perform a simple zone air-conditioning while simplifying the system and reducing the cost and increasing the amount of air collected at the suction port provided around the seat.

1 is a schematic top view of a vehicle air conditioner according to an embodiment of the present invention. 1 is a schematic side view of a vehicle air conditioner according to an embodiment of the present invention. 1 is a schematic configuration diagram of a vehicle air conditioner according to an embodiment of the present invention. It is a schematic block diagram which shows control of the 1st louver and 2nd louver of the vehicle air conditioner which concerns on embodiment of this invention. It is a flowchart which shows the control method of the conditioned air which blows off into the vehicle interior of the vehicle air conditioner which concerns on embodiment of this invention. It is a schematic top view which shows the direction of the conditioned air in the zone air conditioning mode of the vehicle air conditioner according to the embodiment of the present invention. It is a schematic top view which shows the direction of the conditioned air in the whole air conditioning mode of the vehicle air conditioner which concerns on embodiment of this invention. It is a schematic side view which shows the direction of the conditioned air in the zone air-conditioning mode of the vehicle air conditioner which concerns on embodiment of this invention. It is a schematic side view which shows the direction of the conditioned air in the whole air conditioning mode of the vehicle air conditioner which concerns on embodiment of this invention. It is a schematic side view of the vehicle air conditioner which concerns on other embodiment of this invention. It is a schematic sectional drawing of the vehicle air conditioner which shows a 1st prior art example. It is a schematic sectional drawing of the vehicle air conditioner which shows a 2nd prior art example.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in light of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

(Embodiment)
1 to 3 show an embodiment of the present invention. 1 and 2, the vehicle 1 has an instrument panel 3 at the foremost part in the passenger compartment 2. In the passenger compartment 2, two front seats (driver seat and front passenger seat) 4 and one long rear seat 5 are provided. Each seat 4 in the front seat has a seat cushion 4a, a seat back 4b, and a headrest 4c. The rear seat 5 includes a seat cushion 5a, a seat back 5b, and two headrests 5c.

  As shown in FIGS. 1 to 3, the vehicle air conditioner 10 according to the embodiment of the present invention uses a heat exchange unit (evaporator 18, heater core 19) to suck in the air sucked into the air passage 13 by the blower 17. Air conditioning device 11 that converts to conditioned air and blows it into passenger compartment 2 through the air outlet, suction ports 30A and 30B arranged around the seating of the occupant, and suction air from suction ports 30A and 30B and air conditioning device 11 And a duct 40 communicating with the path 13. Moreover, when the passenger | crew has boarded only the front seat, the vehicle air conditioner 10 which concerns on embodiment of this invention draws in the direction of the conditioned air which blows off from vent vent 22a, 22b among vents Control is performed in the directions of 30A and 30B.

  The air conditioner 11 has an air conditioning unit 12 arranged inside the instrument panel 3. As shown in FIG. 3, an air passage 13 is formed in the air conditioning unit 12. In the uppermost stream of the air passage 13, an outside air introduction port 14 for introducing outside air, which is air outside the vehicle compartment 2, and an inside air introduction port 15 for introducing inside air, which is air inside the vehicle compartment 2, are provided. The outside air introduction port 14 and the inside air introduction port 15 are opened and closed by two intake doors 16a and 16b.

  In the air passage 13, an evaporator 18 and a heater core 19, which are heat exchange parts, are arranged in this order together with the air blower 17. The evaporator 18 is a cooling source for blowing air, and the heater core 19 is a heating source for blowing air. A mix door 20 is provided between the evaporator 18 and the heater core 19.

  The blower 17 sucks the inside air and the outside air into the air passage 13 by the rotation of the fan. The evaporator 18 is arrange | positioned so that all the ventilation which passes along the ventilation path 13 may pass, and cools ventilation. The heater core 19 is arrange | positioned in the substantially half area | region of the ventilation path 13, and heats ventilation. The mix door 20 adjusts the ratio of the airflow that flows through the heater core 19 and the airflow that bypasses the heater core 19. Air conditioning air at a desired temperature is produced based on this air volume ratio.

  Downstream of the heater core 19, a defroster outlet 21, vent outlets 22a and 22b, and foot outlets 23a and 23b are provided. The defroster outlet 21 blows out conditioned air toward the windshield. The vent outlets 22a and 22b have a vent outlet 22a on the driver's seat side and a vent outlet 22b on the passenger seat side. The vent outlets 22a and 22b blow out conditioned air toward the upper body of each occupant. The foot outlets 23a and 23b include a driver-side foot outlet 23a and a passenger-side foot outlet 23b. The foot outlets 23a and 23b blow out the conditioned air toward the lower half of each occupant. The defroster outlet 21 is opened and closed by a differential door 24. The vent outlets 22a and 22b are opened and closed by a vent door 25. The foot outlets 23a and 23b are opened and closed by a foot door 26.

  The suction ports 30A and 30B are provided in pairs at the upper positions of the seat backs 4b of the driver seat and the passenger seat, and at the left and right positions with the headrest 4c interposed therebetween. The suction ports 30A and 30B are a total of four locations, and are opened at positions just behind the upper body of the driver and passenger seat passengers.

  One end of the duct 40 is connected to each of the suction ports 30A and 30B. The other end of the duct 40 is connected to the position of the air passage 13 upstream from the blower 17 of the air conditioning unit 12. At the opening position of the duct 40, a suction selection door 41 as a suction selection means is arranged. The suction selection door 41 opens and closes the inside of the duct 40 to the air passage 13 of the air conditioning unit 12. The suction selection door 41 is controlled by the control unit 50.

  In the duct 40, a temperature sensor S1 is disposed. The temperature sensor S1 detects an air temperature representative of the cabin temperature of the conditioned air sucked from the suction ports 30A and 30B. The detection data of the temperature sensor S1 is output to the control unit 50.

  In the passenger compartment 2, a temperature sensor S2 is disposed as an in-car sensor. The temperature sensor S2 detects an air temperature representative of the cabin temperature of the conditioned air blown from the air outlets 21, 22a, 22b, 23a, and 23b. The detection data of the temperature sensor S2 is output to the control unit 50.

  An operation panel (not shown) can command various air conditioning states. On the operation panel, it is possible to select overall air conditioning that air-conditions the entire interior of the passenger compartment 2 and zone air conditioning that prioritizes air conditioning in the front seat space in the passenger compartment 2.

  The control unit 50 controls the air conditioner 11 according to a command from an operation panel (not shown) and controls the switching of the suction selection door 41. When the entire air conditioning is selected by the operation panel, the control unit 50 closes the suction selection door 41 and controls the blowing temperature and the like by the temperature sensor S2 of the air conditioner 11 disposed near the instrument panel 3. . When the zone air conditioning that preferentially air-conditions the front seat space in the passenger compartment 2 is selected by the operation panel, the control unit 50 opens the suction selection door 41 and controls the blowing temperature and the like by the temperature sensor S1 in the duct 40. To do.

  In the above configuration, when the air conditioner 11 is driven, air is sucked into the air passage 13 from the outside air inlet 14 and the inside air inlet 15 by the blower 17. The sucked air is converted into conditioned air at a desired temperature by the evaporator 18 and the heater core 19, and the conditioned air is supplied from at least one air outlet 21, 22 a, 22 b, 23 a, 23 b, for example, the vent air outlet 22 a, 22 b to the vehicle compartment 2. It is blown out inside.

  The conditioned air blown into the passenger compartment 2 from the vent outlets 22a and 22b includes first louvers 60a to 60d that can change the blowing direction in the horizontal direction and the blowing direction in the vertical direction as shown in FIG. The blowing direction is controlled by the second louvers 61a to 61c that can change the position. The first louvers 60a to 60d and the second louvers 61a to 61c are respectively controlled by a first louver controller 62 and a second louver controller 63 that can change the direction of the louvers by electric or hydraulic pressure. The first louver control unit 62 and the second louver control unit 63 are connected to the conditioned air control unit 64 and receive a control signal from the air conditioning control unit 64. The air conditioning control unit 64 is connected to the control unit 50 and receives a control signal from the control unit 50. Various numbers of first louvers 60a to 60d and second louvers 61a to 61c can be selected.

  In the overall air conditioning mode, the suction selection door 41 is positioned at the closed position. Thereby, the suction inlets 30A and 30B of the sheet 4 do not suck the conditioned air. Therefore, the conditioned air blown out from the air conditioner 11 into the passenger compartment 2 flows to almost the entire interior of the passenger compartment 2 and the entire interior of the passenger compartment 2 is air-conditioned.

  In the zone air conditioning mode, the suction selection door 41 is positioned at the open position. Thereby, the suction ports 30 </ b> A and 30 </ b> B of the seat 4 suck in the conditioned air by the suction force of the blower 17. Therefore, the conditioned air blown out from the air conditioner 11 into the passenger compartment 2 is sucked through the suction ports 30A and 30B of the seat 4 in the front seat. The sucked conditioned air is returned to the air conditioning unit 12 through the duct 40. As shown in FIGS. 1 and 2, the conditioned air is concentrated around the passengers in the front seat and collected from the suction ports 30A and 30B, and flows to the passenger compartment space behind the suction ports 30A and 30B. Is suppressed. Thereby, a zone air-conditioning area is formed in the front seat in the passenger compartment 2.

  In the zone air-conditioning mode, the air-conditioning air at a desired temperature is produced using the evaporator 18 and the heater core 19 of the air-conditioning unit 12, so there is no need to install a heat exchange unit dedicated to zone air-conditioning, simplifying the system and reducing the cost. Is possible. The conditioned air sucked through the suction ports 30A and 30B flows through the duct 40 in all the paths returned to the air conditioner 11, and is returned to the air conditioner 11 without loss of heat (including temperature and humidity) as much as possible. The air conditioning load of the device 11 is reduced. In addition, since the conditioned air sucked from the suction ports 30A and 30B is not blown into the passenger compartment 2 at all, a circulating air flow not having a desired temperature may be formed around the occupant as in the second conventional example. Absent.

  Hereinafter, a method for controlling the conditioned air blown into the passenger compartment 2 from the vent outlets 22a and 22b will be described with reference to the flowchart shown in FIG.

  (A) First, in step S101, it is determined whether the air conditioner is switched on. When the switch of the air conditioner is on, the process proceeds to step S102, and when the switch is off, the control is terminated.

  (B) In step S102, it is determined whether the occupant is seated only in the front seat. If the occupant is seated only in the front seat, the process proceeds to step S103, and if the occupant is also seated in the rear seat, the process proceeds to step S107.

  (C) Since step S103 is the zone air conditioning mode, the suction ports 30A and 30B of the seat 4 suck in the conditioned air by the suction force of the blower 17. In step S103, the first louvers 60a to 60d are controlled in order to direct the direction of the conditioned air blown from the vent outlets 22a and 22b toward the inlets 30A and 30B. When there are a plurality of suction ports 30A and 30B, the first louvers 60a to 60d are controlled to the inside of a line d connecting the vent outlets 22a and 22b and the suction ports 30A and 30B as shown in FIG. Control is performed so that the wind axis D of the wind is directed.

  (D) In step S104, the temperature sensor S1 detects the air temperature representative of the cabin temperature of the conditioned air sucked from the suction ports 30A and 30B. The detected detection data is output to the control unit 50.

  (E) In step S105, a determination is made based on the difference between the air temperature representative of the cabin temperature of the conditioned air sucked from the suction ports 30A and 30B detected by the temperature sensor S1 and the target temperature of the air conditioner setting. When the detected temperature of the conditioned air is equal to or lower than the target temperature, the process proceeds to step S106, and when it is equal to or higher than the target temperature, the process proceeds to step S110.

  (F) In step S106, the air speed of the conditioned air blown out from the vent outlets 22a and 22b is lowered. Specifically, the wind speed of the conditioned air is set so that the wind speed to the exposed skin portion is 0.5 m / s or less. When the wind speed is lowered, the air temperature of the air-conditioning wind is lowered and becomes 16 ° C. to 28 ° C. between the suction ports 30A and 30B and the duct 40. Furthermore, in step S106, if the air speed of the conditioned air blown out from the vent outlets 22a and 22b is lowered, the air temperature of the conditioned air is lowered, and accordingly, the air axis direction D of the conditioned air is controlled. The wind direction D of the conditioned air can be changed by controlling the second louvers 61a to 61c based on the temperature difference obtained from the temperature drop of the air temperature of the conditioned air and the passenger compartment temperature. The air temperature of the conditioned air blown out from the vent outlets 22a and 22b is lowered and the difference from the passenger compartment temperature is increased, so that the conditioned air is easily lowered. Therefore, as shown in FIG. 8, the wind axis direction D is such that the direction of the conditioned air blown from the vent outlets 22a and 22b is directed upward from the direction of the inlets 30A and 30B so as to go upward of the occupant. The two louvers 61a to 61c are controlled. In this way, by controlling the second louvers 61a to 61c, the air flows toward the suction ports 30A and 30B even if the conditioned air is lowered.

  (G) In step S110, the air speed of the conditioned air blown out from the vent outlets 22a and 22b is increased. Specifically, the air speed of the conditioned air is increased from 0.5 to 1.0 m / s on the skin exposed portion. Furthermore, in step S110, the direction of the conditioned air blown out from the vent outlets 22a and 22b is set in the direction of the inlets 30A and 30B so that the wind axis direction D is directed to the inlet 30A (30B) as shown in FIG. The second louvers 61a to 61c are controlled so as to be directed downward. In this way, by controlling the second louvers 61a to 61c, the air flows toward the suction ports 30A and 30B even when the conditioned air rises.

  (H) In step S107, the entire air-conditioning mode in which the occupant is in a seat other than the front seats. In the case of the overall air conditioning mode in which the occupant is in a seat other than the front seat, the direction of the conditioned air blown from the vent outlets 22a and 22b is controlled to be directed to directions other than the inlets 30A and 30B. Specifically, since the entire air conditioning mode in which suction is not performed at the suction ports 30A and 30B, the wind axis direction D of the conditioned air blown out from the vent outlets 22a and 22b is normally set as shown in FIG. The first louvers 60a to 60d and the second louvers 61a to 61c are controlled so as to reach the passengers in the rear seats in the same manner as when the air conditioner is operated.

  (I) In step S108, the temperature sensor S2 detects an air temperature (vehicle interior temperature) representative of the vehicle interior temperature of the conditioned air blown from the air outlets 21, 22a, 22b, 23a, 23b. The detection data of the temperature sensor S2 is output to the control unit 50.

  (N) In step S109, the vehicle interior temperature control is performed as usual based on the vehicle interior temperature detected by the temperature sensor S2 as the in-car sensor. Generally, the louver is controlled so that the conditioned air is distributed to all seats.

  The vehicle compartment temperature is controlled by repeatedly performing the control method of the conditioned air blown into the vehicle compartment 2 from the vent outlets 22a and 22b.

  According to the vehicle air conditioner 10 according to the embodiment, since the direction of the conditioned air can be automatically changed toward the suction ports 30A and 30B of the seat 4 in the zone air conditioning mode, the suction port 30A. , 30B can be increased. Moreover, according to the vehicle air conditioner 10 which concerns on embodiment, when the wind speed and wind temperature of an air-conditioning wind fall, even if the air-conditioning wind falls, it winds up the wind axis D so that it may go to suction inlet 30A, 30B By performing the control so that the airflow is directed, the air volume collected from the suction ports 30A and 30B can be increased. As a result, in the zone air-conditioning mode, it becomes possible to increase the amount of air collected from the suction ports 30A and 30B, energy saving can be achieved, and the zone air-conditioning enables immediate cooling and immediate warming. Improvements can be made.

  Furthermore, according to the vehicle air conditioner 10 according to the embodiment, the wind speed and the wind temperature can be controlled, and the wind direction can also be controlled so that the passenger does not increase the discomfort caused by the wind. Therefore, the vehicle air conditioner 10 can appropriately control the temperature of the passenger's zone.

  In the vehicle air conditioner 10 according to the embodiment, the other end of the duct 40 is connected to the position of the air passage 13 upstream of the blower 17 of the air conditioning unit 12. As a result, the conditioned air can be sucked from the suction ports 30A and 30B using the suction force of the blower 17 of the air conditioning unit 12, so that it is not necessary to separately provide a blower dedicated to suction, and the system can be further simplified. Cost reduction can be achieved.

  The vehicle air conditioner 10 according to the embodiment includes a temperature sensor S1 that detects an air temperature representative of the cabin temperature sucked from the suction ports 30A and 30B. In the zone air conditioning mode, the vehicle air conditioner 10 actually By detecting the temperature of the conditioned air that has passed through and controlling the temperature at which the air-conditioning apparatus 11 blows out, it is possible to accurately control the air-conditioning temperature.

(Other embodiments)
As described above, the present invention has been described according to the embodiment. However, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques should be apparent to those skilled in the art.

  For example, as shown in FIG. 10, the duct 40 may be provided with a duct blower 42 that sucks air from the suction ports 30 </ b> A and 30 </ b> B. By providing the duct blower 42, the force for sucking the conditioned air from the suction ports 30A, 30B of the seat 4 is increased. Therefore, the provision of the duct blower 42 increases the amount of air sucked from the suction ports 30A and 30B, so that zone air conditioning can be performed more effectively.

  Moreover, the structure which provides the sheet | seat sensor (not shown) which senses the grade of the displacement in the sheet | seat 4, such as moving the sheet | seat 4 back and forth, and tilting the sheet | seat 4 may be sufficient. The sheet sensor transmits the detected displacement detection value of the sheet 4 to the control unit 50. The control unit 50 adjusts the wind axis direction D of the conditioned air blown out from the vent outlets 22a, 22b and the like based on the detected displacement value. Thus, the vehicle air conditioner 10 according to the present invention can efficiently perform zone air conditioning in accordance with the seating position of the occupant and can perform control so as not to increase discomfort.

  In the embodiment, the suction ports 30A to 30D are provided in the seats 4 and 5, but may be anywhere around the seating position of the occupant. The suction ports 30 </ b> A to 30 </ b> D may be provided around the sheets 4 and 5, and this is easier to install later.

  As a modification of the vehicle air conditioner, a suction port may be provided at each of the seating positions of all the occupants, and ducts that return the conditioned air sucked from each suction port to the air conditioner may be provided. In this way, zone air conditioning is possible for each occupant, and zone air conditioning in accordance with the boarding rate is possible.

  Thus, it should be understood that the present invention includes various embodiments and the like not described herein. Therefore, the present invention is limited only by the invention specifying matters in the scope of claims reasonable from this disclosure.

2 ... Vehicle compartment 4, 5 ... Seat 10 ... Vehicle air conditioner 11 ... Air conditioner 13 ... Air blower 17 ... Air blower 18 ... Evaporator (heat exchanger)
19 ... Heater core (heat exchange part)
22a, 22b ... Vent outlet 30A-30D ... Suction port 40, 40A, 40B, 43 ... Duct 41 ... Suction selection door (suction selection means)
DESCRIPTION OF SYMBOLS 42 ... Duct blower 50 ... Control part 60a-60d ... 1st louver 61a-61c ... 2nd louver 62 ... 1st louver control part 63 ... 2nd louver control part 64 ... Air-conditioning wind control part S1, S2 ... Temperature sensor

Claims (4)

An air conditioner that converts the air sucked into the air passage by the blower into a desired conditioned air by the heat exchange unit and blows it into the passenger compartment through the air outlet;
A suction port arranged around the occupant's seat;
A duct communicating between the suction port and the air passage of the air conditioner,
An air conditioner for a vehicle, wherein when an occupant is in the front seat, control is performed to direct the direction of the conditioned air blown from the vent outlet out of the outlets toward the inlet.   2. The control according to claim 1, wherein when there are a plurality of the suction ports, the direction of the conditioned air blown out from the vent outlet among the outlets is controlled to be directed toward the suction port or the inside of the suction port. The vehicle air conditioner described. When the temperature in the passenger compartment is measured by a temperature sensor and the measured temperature is equal to or lower than the target temperature, control is performed to reduce the air speed of the conditioned air blown from the vent outlet,
3. The vehicle air conditioner according to claim 1, wherein when the measured temperature is equal to or higher than a target temperature, control is performed to increase the speed of the conditioned air blown from the vent outlet. When the air speed of the conditioned air blown from the vent outlet is lowered, the direction of the conditioned air blown from the vent outlet is controlled to be higher than the direction of the suction port,
4. The vehicle according to claim 3, wherein when the speed of the conditioned air blown from the air outlet is increased, the direction of the conditioned air blown from the air outlet is controlled to be downward from the direction of the suction port. 5. Air conditioner.

Images