JP2018075969A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle, which is able to make a passenger in a rear seat feel warmer.SOLUTION: An air conditioner 10 for a vehicle has a blower 30 disposed in a place further on a vehicle rear side from a front seat air conditioning unit 20 in a vehicle cabin 3. In a case where a current of hot air from the front seat air conditioning unit 20 is blown into a foot space for a front seat 7, the blower 30 creates a current of air circulating between a foot space for the front seat 7 and a foot space for rear seats 8, 9. By virtue of this, a current of hot air from the front seat air conditioning unit 20 reaches not only the foot space for the front seat 7 but also the foot space for the rear seats 8, 9. Accordingly, passengers in the rear seats 8, 9 can be made to feel warmer.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle air conditioner.

  There exists a thing of patent document 1 as a conventional vehicle air conditioner. This vehicle air conditioner includes a front seat air conditioning unit disposed in a front portion of a vehicle interior. Then, warm air is blown out from the front seat air conditioning unit to the foot space of the front seat, and the air in the foot space of the front seat from which the warm air is blown out is sucked.

JP2015-37926A

  In the conventional vehicle air conditioner described above, the warm air from the front seat air conditioning unit is unlikely to reach the foot space of the rear seat located behind the front seat. For this reason, the feeling of heating of the passengers in the rear seats is insufficient. The rear seat located on the rear side of the vehicle with respect to the front seat is the second row seat in a vehicle in which the seats are arranged in two rows in the vehicle longitudinal direction, and the seats are arranged in three rows in the vehicle longitudinal direction. In the vehicle, the seats are in the second and third rows.

  In view of the above points, an object of the present invention is to provide a vehicle air conditioner that can improve the feeling of heating of a passenger in a rear seat.

In order to achieve the above object, the invention described in claim 1
A vehicle air conditioner mounted on a vehicle having a front seat (7) and a rear seat (8, 9) located on the vehicle rear side of the front seat in the vehicle interior,
A blower device (30) that is separate from the front seat air conditioning unit (20) disposed in the front portion of the vehicle compartment (3), and is disposed in the vehicle rear side of the vehicle compartment from the front seat air conditioning unit. With
When the hot air from the front seat air conditioning unit is blown out to the foot space (S7a, S7b) of the front seat, the air blower device has a foot space of the front seat and a foot space of the rear seat (S8a, S8b, S9a, S9b). A wind flow that circulates between

  According to this, after the warm air from the front seat air conditioning unit reaches the foot space of the rear seat, a wind flow that reaches the foot space of the front seat is formed. That is, the warm air from the front seat air conditioning unit reaches not only the front seat foot space but also the rear seat foot space. For this reason, the feeling of heating of the passenger in the rear seat can be improved.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

It is the top view which looked at the lower part of the compartment where the air conditioner for vehicles in a 1st embodiment is arranged from the top. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is sectional drawing of the vehicle by which the vehicle air conditioner in the comparative example 1 is arrange | positioned. It is the top view which looked at the lower part of the compartment where the air conditioner for vehicles in a 2nd embodiment is arranged from the top. It is the top view which looked at the lower part of the compartment where the vehicle air conditioner in 3rd Embodiment is arrange | positioned from the top. It is sectional drawing of the 1st, 2nd air blower in 3rd Embodiment. It is the VIII-VIII sectional view taken on the line of FIG. It is sectional drawing of the 1st, 2nd air blower in 4th Embodiment. FIG. 10 is a sectional view taken along line XX in FIG. 9. It is the top view which looked at the lower part of the compartment by which the vehicle air conditioner in 5th Embodiment is arrange | positioned from the top. It is the top view which looked at the lower part of the compartment where the vehicle air conditioner in 6th Embodiment is arrange | positioned from the top. It is the top view which looked at the lower part of the compartment by which the vehicle air conditioner in 7th Embodiment is arrange | positioned from the top. It is the top view which looked at the lower part of the compartment where the vehicle air conditioner in 8th Embodiment is arrange | positioned from the top. It is the top view which looked at the lower part of the compartment where the air conditioner for vehicles in a 9th embodiment is arranged from the top. It is the top view which looked at the lower part of the compartment where the vehicle air conditioner in 10th Embodiment is arrange | positioned from the top. It is the top view which looked at the lower part of the compartment by which the vehicle air conditioner in 11th Embodiment was arrange | positioned from the top. It is sectional drawing of the vehicle by which the vehicle air conditioner in 12th Embodiment is arrange | positioned, and is sectional drawing corresponding to FIG. It is sectional drawing of the vehicle by which the vehicle air conditioner in 12th Embodiment is arrange | positioned, and is sectional drawing corresponding to FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, parts that are the same or equivalent to each other will be described with the same reference numerals.

(First embodiment)
First, a vehicle on which the vehicle air conditioner of this embodiment is mounted will be described.

  As shown in FIGS. 1, 2, and 3, the vehicle 1 includes an engine room 2 and a vehicle compartment 3. The engine room 2 and the vehicle compartment 3 are partitioned by a dash panel 4. The dash panel 4 is also called a firewall. The vehicle 1 includes a floor member 5 a that forms the floor of the passenger compartment 3. The floor member 5a is composed of a member different from a bottom portion (not shown) of the vehicle 1. An instrument panel 6 is disposed in the front part of the passenger compartment 3. The instrument panel 6 refers to the entire panel located on the front side of the front seat in the passenger compartment, including not only the part where the instruments are arranged, but also the part that houses the audio and the air conditioner. In the vehicle compartment, three rows of seats 7, 8, 9 are arranged in the longitudinal direction of the vehicle. The seat 7 in the first row from the front side of the vehicle is the front seat. The second row of seats 8 and the third row of seats 9 from the vehicle front side are rear seats. The seat 9 in the third row is a rear seat located at the rearmost part of the passenger compartment 3. The seat 7 in the first row includes a driver seat 7a and a passenger seat 7b. The second row of seats 8 includes a driver seat side seat 8a and a passenger seat side seat 8a. The third row of seats 9 includes a driver seat 9a and a passenger seat 9b.

  The vehicle air conditioner 10 of this embodiment includes a front seat air conditioning unit 20. The front seat air conditioning unit 20 is disposed inside the instrument panel 6 and is disposed in the front part of the passenger compartment 3. The front seat air conditioning unit 20 air-conditions the vehicle interior space by blowing out air whose temperature has been adjusted toward the space on the front seat 7 side of the vehicle interior 3.

  The front seat air conditioning unit 20 includes an inside air suction portion 21 and a foot blowing portion 22. The inside air suction portion 21 is a portion that sucks air in the vehicle interior, that is, inside air. The foot blowing part 22 is a part that blows air toward the foot space of the front seat 7. The foot blowing part 22 includes a driver seat side foot blowing part 22a and a passenger seat side foot blowing part 22b.

  The front seat air conditioning unit 20 is configured to suck in the inside air from the inside air suction unit 21 during heating, to heat the sucked air to form warm air, and to blow out the warm air from the foot blowing unit 22. For this reason, at the time of heating, as shown by the arrow F10a in FIGS. 1 and 2, warm air is blown out from the driver seat side foot blowing portion 22a to the foot space S7a (see FIG. 2) of the driver seat 7a. As shown by the arrow F10b in FIGS. 1 and 3, warm air is blown from the passenger seat side foot blowing portion 22b to the foot space S7b (see FIG. 3) of the passenger seat 7b.

  As shown in FIG. 1, specifically, the front seat air conditioning unit 20 includes a blower unit 201 and an air conditioner unit 202.

  The blower unit 201 forms an air flow toward the vehicle interior. The blower unit 201 includes a blower 203 and an inside / outside air switching unit 204.

  The inside / outside air switching unit 204 includes an inside air suction unit 21 and an outside air suction unit 23. The outside air suction portion 23 is a portion that sucks air outside the passenger compartment, that is, outside air. The inside air suction portion 21 and the outside air suction portion 23 are selectively opened and closed. The blower 203 sucks air from one of the inside air suction portion 21 and the outside air suction portion 23 and sends the air to the air conditioner unit 202.

  The air conditioner unit 202 includes a cooler (not shown) that cools the air and a heater (not shown) that heats the air. As the cooler, an evaporator constituting a vapor compression refrigeration cycle is used. As the heater, a heater core that heats air using engine cooling water, that is, hot water as a heating source, is used. The air conditioner unit 202 has a blowing unit for blowing out air toward the vehicle interior. The blowing unit includes a face blowing unit (not shown), a defroster blowing unit (not shown), and a foot blowing unit 22.

  The vehicle air conditioner 10 includes a blower 30 that is separate from the front seat air conditioning unit 20. The blower 30 includes a first blower 31 and a second blower 32.

  As shown in FIG. 1, the first blower 31 is disposed at the position of the second row of seats 8 a on the driver's seat side in the passenger compartment 3. The second blower 32 is disposed at the position of the second row of seats 8 b on the passenger seat side in the passenger compartment 3. Accordingly, the first blower 31 and the second blower 32 are disposed in a portion of the passenger compartment 3 on the vehicle rear side with respect to the front seat air conditioning unit 20. The first blower 31 and the second blower 32 are arranged so as to be shifted from each other in the vehicle left-right direction.

  As shown in FIG. 2, the 1st air blower 31 is arrange | positioned under the seat 8a, ie, between the seat part and the floor member 5a where the passenger | crew of the seat 8a sits down. As shown in FIG. 3, the 2nd air blower 32 is arrange | positioned under the seat 8b, ie, between the seat part of the seat 8b, and the floor member 5a.

  The first blower 31 sucks wind from the vehicle front side of the first blower 31 as indicated by an arrow F11b in FIG. 1, and blows the wind toward the vehicle rear side of the first blower 32 as indicated by an arrow F11c in FIG. For this reason, the 1st air blower 31 forms the wind flow which goes to the vehicle rear side from the foot space of the front seat 7a like the arrow F11a of FIG. 1, F11b, and F11c. Accordingly, the first blower 31 sends the wind F10a blown from the driver's seat side foot blowing portion 22a to the vehicle rear side.

  The second blower 32 sucks wind from the vehicle rear side of the second blower 32 as indicated by an arrow F12b in FIG. 1, and blows wind toward the vehicle front side of the second blower 32 as indicated by an arrow F12c in FIG. For this reason, the 2nd air blower 32 forms the wind flow which goes to a vehicle front side from the vehicle rear side like the arrow F12b of FIG. 1, F12c, and F12d. In other words, the second blower 32 returns the wind flow formed by the first blower 31 to the vehicle front side.

  The first blower 31 and the second blower 32 are arranged so as to be shifted in the vehicle left-right direction. For this reason, wind that flows in the left-right direction as indicated by arrows F11d and F12a in FIG. 1 in the space below the seats 9 or the foot space in the third row by blowing out the first blower 31 and sucking in the second blower 32. Is formed.

  Centrifugal blowers are used as the first blower 31 and the second blower 32, respectively. The first blower 31 and the second blower 32 have centrifugal fans 311 and 321 and scroll cases 312 and 322, respectively. Centrifugal fans 311 and 321 are accommodated in scroll cases 312 and 322. By operation of the centrifugal fans 311 and 321, air is sucked in from the suction portions of the scroll cases 312 and 322, and air is blown out from the blowing portions of the scroll cases 312 and 322.

  Next, the operation of the vehicle air conditioner 10 of this embodiment will be described.

  During heating, the front seat air conditioning unit 20 blows warm air from the foot blowing portion 22 as indicated by arrows F10a and 10b in FIGS. The first blower 31 sucks warm air from the driver's seat side foot outlet 22a as indicated by arrows F11a and F11b in FIG. 2, and the sucked warm air as indicated by arrow F11c in FIG. It blows out toward the foot space S9a of the seat 9a in the row. The second blower 32 sucks air from the foot space S9b of the third row of seats 9b on the passenger seat side as indicated by an arrow F12b in FIG. The second blower 32 blows wind toward the foot space S7b of the passenger seat 7b as indicated by arrows F12c and F12d in FIG. The front seat air conditioning unit 20 sucks in the wind sent to the foot space S7b of the passenger seat 7b as shown by an arrow F12e in FIG. The front seat air conditioning unit 20 additionally heats the sucked air and blows it out again from the foot blowing part 22.

  Thereby, the warm air from the front seat air conditioning unit 20 flows like arrows F10a, F11a, F11b, F11c, F11d, F12a, F12b, F12c, F12d, and F12e in FIG. That is, as shown by arrows F10a, F11a, F11b, F11c, F12b, F12c, F12d, and F12e in FIGS. 2 and 3, the hot air from the front seat air conditioning unit 20 is converted into the foot space S7a of the driver seat 7a, the driver seat side. Foot space S8a of the second row seat 8a, foot space S9a of the third row seat 9a on the driver's seat side, foot space S9b of the third row seat 9b on the passenger seat side, second row seat on the passenger seat side After flowing in the order of the foot space S8b of 8b and the foot space S7b of the passenger seat 7b, the air is sucked into the front seat air conditioning unit 20. The foot space is a space where the knees of the feet of the occupant seated on the seat are located, and is a space in front of the seat portion of the seat and below the uppermost portion of the seat portion. Further, the warm air from the passenger seat side foot outlet 22b is blown into the foot space S7b of the passenger seat 7b and then sucked into the front seat air conditioning unit 20 as indicated by an arrow F10b in FIG.

  Next, the vehicle air conditioner 10 of this embodiment and the vehicle air conditioner J10 of the comparative example 1 shown in FIG. 4 are compared. The vehicle air conditioner J10 of Comparative Example 1 includes the rear seat air conditioning unit 40 in addition to the front seat air conditioning unit 20, and does not include the blower 30 of the present embodiment. And different.

  The rear seat air conditioning unit 40 is disposed in the rear part of the passenger compartment, specifically, on the vehicle rear side with respect to the seats 9 in the third row. The rear seat air conditioning unit 40 includes a heater that heats air using engine coolant as a heat source.

  The vehicle air conditioner J10 of the comparative example 1 blows warm air from the foot blowing part 22 of the front seat air conditioning unit 20 to the foot space of the front seat 7 during heating, as indicated by the arrow in FIG. Inhale air from the foot space. Further, hot air is blown out from the blowing portion of the rear seat air conditioning unit 40 to the foot space of the seat 9 in the third row, and air is sucked from the foot space of the seat 9.

  However, the warm air from the front seat air conditioning unit 20 is difficult to reach the foot space of the second row of seats 8 away from the foot blowing portion 22. Similarly, the warm air from the rear seat air conditioning unit 40 is unlikely to reach the foot space of the second row of seats 8 away from the blowing portion of the rear seat air conditioning unit 40. For this reason, the occupant's feeling of heating in the second row of seats 8 is insufficient.

  The rear seat air conditioning unit 40 is separated from the engine room 2 located in the front portion of the vehicle 1. For this reason, the piping path for guiding the engine coolant to the heater of the rear seat air conditioning unit 40 becomes longer, and the temperature of the engine coolant that reduces the heating of the air decreases. As a result, in the vehicle air conditioner J10 of the comparative example 1, the heating efficiency is deteriorated. Further, in the rear seat air conditioning unit 40, sufficient heating performance cannot be obtained, and the occupant's feeling of heating in the third row of seats 9 is insufficient.

  On the other hand, in the vehicle air conditioner 10 of the present embodiment, when the warm air from the front seat air conditioning unit 20 is blown out to the foot spaces S7a and S7b of the front seat 7, the blower 30 is used as the front seat 7. The wind flow that circulates between the foot space S7a, S7b and the foot space S9a, S9b of the seat 9 in the third row is formed. Thereby, after the warm air from the front seat air conditioning unit 20 passes through the foot space S7a of the front seat 7 and reaches the foot spaces S9a and S9b of the seats 9a and 9b in the third row, the foot space of the front seat 7 is reached. A wind flow reaching S7b is formed. That is, the warm air from the front seat air conditioning unit 20 is not limited to the foot spaces S7a and S7b of the front seat 7, but also the foot spaces S8a and S8b of the seat 8 in the second row and the foot space S9a of the seat 9 in the third row, It also reaches S9b. For this reason, the occupant's feeling of heating in the second row and third row seats 8 and 9 can be improved. Therefore, according to the vehicle air conditioner 10 of the present embodiment, the warm air from the front seat air conditioning unit 20 provides sufficient heating not only for the front seat 7 but also for all passengers including the rear seats 8 and 9. A feeling can be given.

  Furthermore, according to the vehicle air conditioner 10 of this embodiment, since the rear seat air conditioning unit 40 is not required, it is possible to suppress an increase in the length of the piping path for guiding the hot water, and warm water is supplied to the heater of the front seat air conditioning unit 20. Can concentrate. Therefore, according to the vehicle air conditioner of this embodiment, heating efficiency can be improved compared with the vehicle air conditioner J10 of the comparative example 1.

  Furthermore, according to the vehicle air conditioner 10 of the present embodiment, the inside air can be circulated only in the lower layer portion (that is, the foot space) of the passenger compartment 3 during heating, so that window fogging can be prevented.

(Second Embodiment)
As shown in FIG. 5, this embodiment is different from the first embodiment in that the front seat air conditioning unit 20 is configured to perform inside / outside air two-layer mode operation during heating. The air blower 30 is the same as in the first embodiment.

  Specifically, each of the blower unit 201 and the air conditioner unit 202 has an upper and lower two-layer structure. The inside / outside air switching unit 204 of the blower unit 201 includes a first inside air suction unit 21, a second inside air suction unit 24, and an outside air suction unit 23.

  During heating, the front seat air conditioning unit 20 sucks outside air from the outside air suction part 23 in the upper layer part of the blower unit 201 and the upper layer part of the air conditioner unit 202, heats it with the heater core, and blows it out from the defroster blowing part and the face blowing part. . In the lower layer portion of the blower unit 201 and the lower layer portion of the air conditioner unit 202, the inside air is sucked from the second inside air suction portion 24, heated by the heater core, and blown out from the foot blowing portion 22.

  According to this, it is possible to prevent window fogging by blowing dry air from the defroster blowing section. Furthermore, the heating efficiency of the front seat air-conditioning unit 20 can be improved by heating the warm air of the inside air and blowing it out from the foot blowing unit 22 as compared with the case where the outside air is heated and blown out from the foot blowing unit 22. .

  Also in this embodiment, the same effect as the first embodiment can be obtained.

(Third embodiment)
As shown in FIG. 6, the present embodiment is different from the first embodiment in that the blower 30 has a heating function. The front seat air conditioning unit 20 is the same as in the first embodiment.

  Both the first blower 31 and the second blower 31 have a heating function. Specifically, the 1st blower 31 and the 2nd blower 32 have blowing parts 31a and 32a which send air, respectively, and heating parts 31b and 32b which heat air. The heating parts 31b and 32b are arranged on the air flow downstream side of the air blowing parts 31a and 32b.

  As shown in FIGS. 7 and 8, the air blowers 31 a and 32 a include centrifugal fans 311 and 321 and scroll cases 312 and 322. The heating units 31 b and 32 b include electric heaters 313 and 323 and cases 314 and 324. Cases 314 and 324 have air passages formed therein and accommodate electric heaters 313 and 323.

  In the present embodiment, during heating, the heating unit 31b of the first blower 31 heats the wind from the blower 31a, and the heating unit 32b of the second blower 32 heats the wind from the blower 32a. According to this, the amount of heat required for heating can be supplemented, and the heating performance for the rear seat of the vehicle air conditioner 10 can be improved.

(Fourth embodiment)
As shown in FIGS. 9 and 10, the present embodiment is different from the third embodiment in the arrangement of the air blowing portions 31 a and 32 a and the heating portions 31 b and 32 b included in the first blower 31 and the second blower 32.

  In this embodiment, the heating parts 31b and 32b are arrange | positioned in the air flow upstream of the ventilation parts 31a and 32a.

  Here, when the heating parts 31b and 32b are arrange | positioned in the air flow downstream of the ventilation parts 31a and 32a, the wind from the ventilation parts 31a and 32b flows in into the heating parts 31b and 32b. The wind from the air blowers 31a and 32b has a wind direction and flows in a specific direction. For this reason, the wind may not flow uniformly over the entire area of the heating units 31b and 32b, and the wind may not be heated using the entire area of the heating units 31b and 32b.

  On the other hand, in this embodiment, since the wind flows in a uniform state or near the entire area of the heating units 31b and 32b, the wind can be heated using the entire area of the heating units 31b and 32b. Therefore, according to this embodiment, compared with the case where the heating parts 31b and 32b are arrange | positioned in the air flow downstream of the ventilation parts 31a and 32a, the heating parts 31b and 32b can heat air efficiently. , Heating efficiency can be improved.

(Fifth embodiment)
As shown in FIG. 11, the present embodiment is different from the first embodiment in that the blower device 30 includes a third blower 33. Other configurations of the vehicle air conditioner 10 are the same as those in the first embodiment.

  The blower 30 includes a first blower 31, a second blower 32, and a third blower 33. The third blower 33 is disposed at the position of the seat 9 in the third row in the passenger compartment 3. Therefore, the third blower 33 is disposed on the vehicle rear side with respect to the first blower 31 and the second blower 32. The third blower 33 is disposed at a position between the driver seat 9a and the passenger seat 9b. The third blower 33 is disposed under the seat 9. As the 3rd air blower 33, the thing of the same structure as the 1st, 2nd air blowers 31 and 32 is used.

  The third blower 33 sucks wind from the driver seat side of the third blower 33 in the left-right direction of the vehicle (that is, the right side of the vehicle) as indicated by an arrow F11d in FIG. 11, and the third blower 33, as indicated by an arrow F12a in FIG. Wind is blown to the passenger seat side 33 (ie, the left side of the vehicle) in the lateral direction of the vehicle. For this reason, the 3rd air blower 33 forms the wind flow which flows into a vehicle left-right direction.

  In the present embodiment, the air flow in the left-right direction is improved on the vehicle rear side of the passenger compartment 3 by the third blower 33 during heating. Therefore, in order to reliably form a wind flow that circulates between the foot space S7a, S7b of the front seat 7 and the foot space S9a, S9b of the seat 9 in the third row, the configuration of the present embodiment is adopted. Is preferred.

(Sixth embodiment)
As shown in FIG. 12, the present embodiment is different from the first embodiment in that the blower device 30 includes fourth and fifth blowers 34 and 35. Other configurations of the vehicle air conditioner 10 are the same as those in the first embodiment.

  The blower 30 includes a first blower 31, a second blower 32, a third blower 33, a fourth blower 34, and a fifth blower 35. As the third, fourth and fifth blowers 33, 34 and 35, those having the same configuration as the first and second blowers 31 and 32 are used.

  The fourth blower 34 is disposed in the passenger compartment 3 at the position of the driver's seat 7a. The fourth blower 34 is disposed below the driver's seat 7a. The fourth blower 34 sucks wind from the vehicle front side of the fourth blower 34 as indicated by an arrow F11a in FIG. 12, and blows the wind toward the vehicle rear side of the fourth blower 34 as indicated by an arrow F11b in FIG.

  For this reason, in this embodiment, the 1st air blower 31 and the 4th air blower 34 form the wind flow which goes to the vehicle rear side from the foot space of the front seat 7a like arrow F11a of FIG. 12, F11b, and F11c.

  The fifth blower 35 is disposed in the passenger compartment 3 at the position of the passenger seat 7b. The fifth blower 35 is disposed under the passenger seat 7b. The fifth blower 35 sucks wind from the vehicle rear side of the fifth blower 35 as indicated by an arrow F12c in FIG. 12, and blows the wind toward the vehicle front side of the fifth blower 35 as indicated by an arrow F12e in FIG.

  For this reason, in this embodiment, the 2nd air blower 32 and the 5th air blower 35 form the wind flow which goes to a vehicle front side from the vehicle rear side like the arrow F12b of FIG. 12, F12c, F12e.

  In the present embodiment, during heating, the third, fourth, and fifth blowers 33, 34, and 35 provide a space between the foot spaces S7a and S7b of the front seat 7 and the foot spaces S9a and S9b of the seat 9 in the third row. The circulating wind flow can be improved as compared with the first embodiment.

(Seventh embodiment)
As shown in FIG. 13, this embodiment is different from the first embodiment in that the first and second blowers 31 and 32 have suction ducts 315 and 325 and blowing ducts 316 and 326. The front seat air conditioning unit 20 is the same as in the first embodiment.

  According to this, the suction position can be adjusted by the suction ducts 315 and 325. The blowing position can be adjusted by the blowing ducts 316 and 326. By adjusting the suction position, the direction of the wind sucked into the first and second blowers 31 and 32 and the range in which the wind flows can be adjusted as indicated by arrows F11a, F11b, and F12b in FIG. By adjusting the blowing position, the direction of the wind blown from the first and second blowers 31 and 32 and the range in which the wind flows can be adjusted as indicated by arrows F11c, F12c, and F12d in FIG.

(Eighth embodiment)
As shown in FIG. 14, the vehicle air conditioner 10 of the present embodiment is mounted on a vehicle in which seats 7 and 8 are arranged in only two rows in the vehicle front-rear direction in the vehicle interior 3 in the first implementation. Different from form. The seat 7 in the first row from the front side of the vehicle is the front seat. The second row of seats 8 from the vehicle front side is the rear seat.

  The blower 30 includes a first blower 31, a second blower 32, a third blower 33, and a fourth blower 34. These blowers 31-34 have the same configuration as the first and second blowers 31, 32 of the first embodiment.

  The first blower 31 is disposed in the passenger compartment 3 at the position of the driver's seat 7a. The 1st air blower 31 is arrange | positioned under the driver's seat 7a. The first blower 31 sucks wind from the vehicle front side of the first blower 31 as indicated by an arrow F11a in FIG. 14, and blows the wind toward the vehicle rear side of the first blower 31 as indicated by an arrow F11b in FIG.

  The second blower 32 is disposed in the passenger compartment 7 at the position of the passenger seat 7b. The second blower 32 is disposed under the passenger seat 7b. The second blower 32 sucks wind from the vehicle rear side of the second blower 32 as indicated by an arrow F12b in FIG. 14, and blows the wind toward the vehicle front side of the second blower 32 as indicated by an arrow F12e in FIG.

  The third blower 33 is disposed at the position of the second row of seats 8 a on the driver's seat side in the passenger compartment 3. The third blower 33 is disposed under the seat 8a. The third blower 33 sucks wind from the front side of the vehicle of the third blower 33 as indicated by an arrow F11b in FIG. 14, and the passenger seat side in the vehicle left-right direction of the third blower 33 (as indicated by an arrow F11d in FIG. 14). That is, the wind is blown out to the left side of the vehicle.

  The fourth blower 34 is disposed at the position of the second row of seats 8 b on the passenger seat side in the passenger compartment 3. The fourth blower 34 is disposed below the seat 8b. The fourth blower 34 sucks wind from the driver seat side in the vehicle left-right direction of the fourth blower 34 (that is, the right side of the vehicle) as indicated by an arrow F12a in FIG. 14, and the fourth blower 34, as indicated by an arrow F12b in FIG. Wind is blown out to the front side of the vehicle.

  In the present embodiment, during heating, the first blower 31 and the third blower 33 form a wind flow from the foot space of the front seat 7a toward the vehicle rear side as indicated by arrows F11a and F11b in FIG. The 3rd blower 33 and the 4th blower 34 form the wind flow which goes to a vehicle left-right direction like the arrow F11d of FIG. 14, and F12a. The second blower 32 and the fourth blower 34 form a wind flow from the vehicle rear side toward the vehicle front side as indicated by arrows F12b and F12e in FIG.

  As a result, as shown by arrows F10a, F11a, F11b, F11d, F12a, F12b, and F12e in FIG. After flowing in the order of the foot space of the seat 8a, the foot space of the second row of seats 8b on the passenger seat side, and the foot space of the passenger seat 7b, the air is sucked into the front seat air conditioning unit 20. Therefore, also in this embodiment, the same effect as the first embodiment can be obtained.

(Ninth embodiment)
As shown in FIG. 15, this embodiment reduces the number of the air blowers which comprise the air blower 30 with respect to 8th Embodiment. The blower 30 is configured by a first blower 31 and a second blower 32.

  The first blower 31 is disposed at the position of the second row of seats 8 a on the driver's seat side in the passenger compartment 3. The first blower 31 is disposed under the seat 8a. The first blower 31 sucks wind from the front side of the vehicle of the first blower 31 as indicated by an arrow F11b in FIG. 15, and as shown by an arrow F11d in FIG. That is, the wind is blown out to the left side of the vehicle.

  The second blower 32 is disposed at the position of the second row of seats 8 b on the passenger seat side in the passenger compartment 3. The second blower 32 is disposed below the seat 8b. The second blower 32 sucks wind from the driver seat side of the fourth blower 34 in the lateral direction of the vehicle (that is, the right side of the vehicle) as indicated by an arrow F12a in FIG. 15, and the second blower 32 as indicated by an arrow F12b in FIG. Wind is blown to the front side of the vehicle.

  In the present embodiment, during heating, the first blower 31 forms a wind flow from the foot space of the front seat 7a toward the vehicle rear side, as indicated by arrows F11a and F11b in FIG. The 1st blower 31 and the 2nd blower 32 form the wind flow which goes to a vehicle left-right direction like the arrows F11d and F12a of FIG. The second blower 32 forms a wind flow from the vehicle rear side toward the vehicle front side as indicated by arrows F12b and F12e in FIG.

  Thereby, also in the present embodiment, the warm air from the front seat air conditioning unit 20 generates the foot space of the driver seat 7a, the foot space of the second row seat 8a on the driver seat side, and the second row seat on the passenger seat side. After flowing in the order of the foot space of 8b and the foot space of the passenger seat 7b, the air is sucked into the front seat air conditioning unit 20. Therefore, also in this embodiment, the same effect as the first embodiment can be obtained.

(10th Embodiment)
As shown in FIG. 16, this embodiment changes the position in the vehicle front-back direction of the 1st air blower 31 with respect to 9th Embodiment.

  The first blower 31 is disposed in the passenger compartment 3 at the position of the driver's seat 7a. The first blower 31 sucks wind from the vehicle front side of the first blower 31 as indicated by an arrow F11a in FIG. 16, and blows the wind toward the vehicle rear side of the first blower 31 as indicated by an arrow F11b in FIG.

  Also in this embodiment, at the time of heating, the 1st air blower 31 forms the wind flow which goes to the vehicle rear side from the foot space of the front seat 7a like arrow F11a of FIG. 16, F11b. The 2nd air blower 32 forms the wind flow which goes to a vehicle left-right direction like the arrow F12a of FIG. Furthermore, the 2nd air blower 32 forms the wind flow which goes to a vehicle front side from the vehicle rear side like the arrows F12b and 12e of FIG.

  Thereby, also in the present embodiment, the warm air from the front seat air conditioning unit 20 generates the foot space of the driver seat 7a, the foot space of the second row seat 8a on the driver seat side, and the second row seat on the passenger seat side. After flowing in the order of the foot space of 8b and the foot space of the passenger seat 7b, the air is sucked into the front seat air conditioning unit 20. Therefore, also in this embodiment, the same effect as the first embodiment can be obtained.

(Eleventh embodiment)
As shown in FIG. 17, the vehicle air conditioner 10 of this embodiment is mounted on a vehicle in which only two rows of seats 7 and 8 are arranged in the vehicle front-rear direction in the passenger compartment 3. Only one blower 36 is provided. When there are only two rows of seats, it is preferable to adopt the configuration of the present embodiment in order to form a wind flow that circulates between the foot space of the front seat 7 and the foot space of the rear seat 8.

  The blower 36 is disposed at the position of the seat 8 in the second row in the passenger compartment 3. The blower 36 is disposed at a position between the driver's seat 8a and the passenger's seat 8b. The blower 36 is disposed under the seat 8.

  At the time of heating, the blower 36 draws and sucks wind toward the vehicle rear side as indicated by an arrow F11b in FIG. 17, and sends the wind toward the vehicle front side as indicated by an arrow F12a in FIG.

  More specifically, in the blower 36, a blow-out portion that blows wind is positioned closer to the passenger seat side in the vehicle left-right direction than the suction portion that sucks wind. The blowing direction of the wind from the blowing portion is the front side of the vehicle and the passenger seat side in the vehicle left-right direction. Therefore, the blower 36 forms a wind flow toward the vehicle rear side on the driver seat side in the vehicle left-right direction in the passenger compartment 3 as indicated by arrows F11a and F11b in FIG. As shown by arrows F12a and F12e in FIG. 17, the blower 36 forms a wind flow toward the front side of the vehicle on the passenger seat side in the vehicle left-right direction in the passenger compartment 3.

  Thereby, also in the present embodiment, the warm air from the front seat air conditioning unit 20 generates the foot space of the driver seat 7a, the foot space of the second row seat 8a on the driver seat side, and the second row seat on the passenger seat side. After flowing in the order of the foot space of 8b and the foot space of the passenger seat 7b, the air is sucked into the front seat air conditioning unit 20. Therefore, also in this embodiment, the same effect as the first embodiment can be obtained.

(Twelfth embodiment)
As shown in FIGS. 18 and 19, the present embodiment is different from the first embodiment in that the first blower 31 and the second blower 32 are arranged in the underfloor space 5c.

  Similar to the first embodiment, the first blower 31 is disposed at the position of the second row of seats 8a on the driver's seat side in the passenger compartment 3 in the front-rear and left-right directions of the vehicle. The second blower 32 is disposed at the position of the second row of seats 8 b on the passenger seat side in the passenger compartment 3.

  In the present embodiment, the vehicle 1 has an underfloor space 5c between the floor member 5a and the vehicle outer plate 5b. The first blower 31 and the second blower 32 are disposed in the underfloor space 5 c of the vehicle interior 3. The first and second blowers 31 and 32 have suction ducts 315 and 325 and blowing ducts 316 and 326. The suction ducts 315 and 325 are connected to suction ports 5d1 and 5d2 provided in the floor member 5a. The blowout ducts 316 and 326 are connected to blowout ports 5e1 and 5e2 provided in the floor member 5a.

  During heating, the first blower 31 sucks air from the vehicle front side of the first blower 31 in the passenger compartment 3 as indicated by an arrow F11b in FIG. 18, and the first blower 31 in the passenger compartment 3 as indicated by an arrow F11c in FIG. Wind is blown out toward the vehicle rear side of the first blower 32. For this reason, as in the first embodiment, the first blower 31 forms a wind flow from the foot space of the front seat 7a toward the vehicle rear side as indicated by arrows F11a, F11b, and F11c in FIG.

  During heating, the second blower 32 sucks wind from the vehicle rear side of the second blower 32 in the passenger compartment 3 as indicated by an arrow F12b in FIG. 19, and the second fan 32 in the passenger compartment 3 as indicated by an arrow F12c in FIG. Wind is blown out toward the vehicle front side of the second blower 32. For this reason, as in the first embodiment, the second blower 32 forms a wind flow from the vehicle rear side toward the vehicle front side as indicated by arrows F12b, F12c, and F12d in FIG.

  Therefore, also in the present embodiment, as in the first embodiment, during the heating, the air blower 30 moves between the foot space S7a, S7b of the front seat 7 and the foot space S9a, S9b of the seat 9 in the third row. A circulating wind flow is formed. Therefore, also in this embodiment, the same effect as the first embodiment can be obtained.

(Other embodiments)
(1) In each of the above embodiments, the centrifugal blower is used as the first and second blowers 31 and 32, but other blowers such as an axial blower may be used.

  (2) In the first to seventh embodiments, when the warm air from the front seat air conditioning unit 20 is blown out to the foot spaces S7a, S7b of the front seat 7, the blower 30 is used as the foot space S7a of the front seat 7. The wind flow circulating between S7b and the foot space S9a, S9b of the seat 9 in the third row is formed, but is not limited to this. The air blower 30 may form a wind flow that circulates between the foot spaces S7a and S7b of the front seat 7 and the foot spaces S8a and S8b of the seats 8 in the second row. In this case, it is possible to improve the heating feeling of the second row of seats 8, that is, the rear seat passengers.

  (3) The present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope described in the claims, and includes various modifications and modifications within the equivalent range. Further, the above embodiments are not irrelevant to each other, and can be combined as appropriate unless the combination is clearly impossible. In each of the above-described embodiments, it is needless to say that elements constituting the embodiment are not necessarily indispensable except for the case where it is clearly indicated that the element is essential and the case where the element is clearly considered essential in principle. Yes. Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case. In each of the above embodiments, when referring to the material, shape, positional relationship, etc. of the constituent elements, etc., unless otherwise specified, or in principle limited to a specific material, shape, positional relationship, etc. The material, shape, positional relationship, etc. are not limited.

(Summary)
According to the 1st viewpoint shown by one part or all part of said each embodiment, a vehicle air conditioner is provided with an air blower. The blower device forms a wind flow that circulates between the foot space of the front seat and the foot space of the rear seat when warm air from the front seat air conditioning unit is blown into the foot space of the front seat.

  According to the second aspect, in the first aspect, the air blower forms a wind flow that circulates between the foot space of the front seat and the foot space of the rear seat located at the rearmost part of the passenger compartment. To do. According to this, the warm air from the front seat air conditioning unit can reach the foot space of the rear seat at the rearmost part. Therefore, it is possible to improve the feeling of heating of the passenger in the rear seat at the rearmost part.

  According to the third aspect, in the first and second aspects, the air blower includes a first blower that forms a wind flow from the foot space of the front seat toward the vehicle rear side, and the vehicle front side from the vehicle rear side. A second blower that forms a wind flow toward the side. The first blower and the second blower are arranged so as to be shifted from each other in the vehicle left-right direction.

  In order to form a wind flow that circulates between the foot space of the front seat and the foot space of the rear seat as in the first and second aspects, it is preferable to employ such a configuration.

  According to the fourth aspect, in the third aspect, the blower device further includes a third blower that forms a wind flow flowing in the left-right direction of the vehicle. The third blower is disposed on the vehicle rear side of the first blower and the second blower.

  In order to form a wind flow that circulates between the foot space of the front seat and the foot space of the rear seat as in the first and second aspects, it is more preferable to employ such a specific configuration. preferable.

  According to the fifth aspect, in the first aspect, the vehicle has only two rows of seats in the vehicle front-rear direction. The blower has only one blower. The blower is disposed at the position of the rear seat, which is the seat in the second row, draws the wind toward the rear side of the vehicle, sucks the wind, and sends the wind toward the front side of the vehicle.

  When the number of seats is two, such a specific configuration is adopted to form a wind flow that circulates between the foot space of the front seat and the foot space of the rear seat as in the first aspect. It is preferable.

  Moreover, according to the 6th viewpoint, an air blower has a ventilation part which sends air, and a heating part which heats air. According to this, the amount of heat required for heating can be supplemented, and the heating performance can be improved.

  According to the seventh aspect, in the sixth aspect, the heating part is arranged on the upstream side of the air flow of the blower part. According to this, compared with the case where the heating part is arrange | positioned in the air flow downstream of a ventilation part, air can be heated efficiently with a heating part and heating efficiency can be improved.

7 Front Seat 8 Second Row Seat 9 Third Row Seat 10 Vehicle Air Conditioner 20 Front Seat Air Conditioning Unit 30 Blower 31 First Blower 32 Second Blower

Claims (7)

A vehicle air conditioner mounted on a vehicle having a front seat (7) and a rear seat (8, 9) located on the vehicle rear side of the front seat in a vehicle interior,
A blower unit (20) that is separate from the front seat air conditioning unit (20) disposed in the front portion of the vehicle compartment (3), and that is disposed in a portion of the vehicle compartment on the vehicle rear side of the front seat air conditioning unit. 30)
When the warm air from the front seat air conditioning unit is blown out to the foot space (S7a, S7b) of the front seat, the air blower is configured so that the foot space of the front seat and the foot space of the rear seat (S8a, S8b). , S9a, S9b) A vehicle air conditioner that forms a wind flow that circulates between the air conditioner.   The air blower forms a wind flow that circulates between the foot space of the front seat and the foot space (S9a, S9b) of the rear seat (9) located at the rearmost part of the passenger compartment. The vehicle air conditioner described. The blower includes a first blower (31) that forms a wind flow from the foot space of the front seat toward the vehicle rear side, and a second blower (32) that forms a wind flow from the vehicle rear side to the vehicle front side. And
The vehicle air conditioner according to claim 1 or 2, wherein the first blower and the second blower are arranged so as to be shifted from each other in the vehicle left-right direction. The blower device further includes a third blower (33) that forms a wind flow flowing in the left-right direction of the vehicle,
4. The vehicle air conditioner according to claim 3, wherein the third blower is disposed on a vehicle rear side of the first blower and the second blower. In the vehicle, only two rows of seats (7, 8) are arranged in the vehicle longitudinal direction in the vehicle interior,
The blower has only one blower (36),
The vehicle blower according to claim 1, wherein the blower is disposed at a position of the rear seat that is a seat in the second row, draws wind toward the rear side of the vehicle, sucks the wind, and sends wind toward the front side of the vehicle. Air conditioner.   The said air blower is a vehicle air conditioner as described in any one of Claim 1 thru | or 5 which has a ventilation part (31a, 32a) which sends air, and a heating part (31b, 32b) which heats air.   The vehicle air conditioner according to claim 6, wherein the heating unit is arranged on the upstream side of the air flow of the air blowing unit.

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