JP6790743B2 - Vehicle air conditioner - Google Patents

Description

The present invention relates to a vehicle air conditioner.

As a conventional air conditioner for vehicles, there is one described in Patent Document 1. This vehicle air conditioner includes a front seat air conditioner unit arranged in the front portion of the vehicle interior. Then, warm air is blown from the front seat air conditioning unit into the foot space of the front seat, and the air in the foot space of the front seat where the warm air is blown out is sucked in.

JP-A-2015-37926

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

In view of the above points, it is an object of the present invention to provide a vehicle air conditioner capable of improving the heating feeling of the occupants in the rear seats.

According to the invention of claim 1, in order to achieve the above object.
A vehicle air conditioner mounted on a vehicle having a front seat (7) in the passenger compartment and a rear seat (8, 9) located on the rear side of the vehicle from the front seat is
It is a separate body from the front seat air conditioning unit (20) arranged in the front part of the passenger compartment (3), and the blower device (30) arranged in the part of the passenger compartment on the rear side of the vehicle from the front seat air conditioning unit. With
When the warm air from the front seat air-conditioning unit is blown into the front seat foot space (S7a, S7b), the blower is the front seat foot space and the rear seat foot space (S8a, S8b, S9a, S9b). Forming a wind flow that circulates between and
In this air flow, warm air from the front seat air conditioning unit is applied to the foot space of the front seat on one side in the left-right direction of the vehicle (S7a), the foot space of the rear seat on the left-right direction of the vehicle (S8a, S9a), and the vehicle. footwell of the rear seat in the lateral direction of the other side (S8b, S9b), Ri air flow der flowing in the order of footwell of the front seat on the other side of the vehicle lateral direction (S7b),
The blower includes a first blower (31) that forms a wind flow from the foot space of the front seat toward the rear side of the vehicle and a second blower (32) that forms a wind flow from the rear side of the vehicle toward the front side of the vehicle. Have and
The first blower and the second blower are arranged so as to be offset from each other in the left-right direction of the vehicle.
Further, according to the invention of claim 5,
A vehicle air conditioner mounted on a vehicle having a front seat (7) and a rear seat (8) located behind the front seat in the vehicle interior is
It is a separate body from the front seat air conditioning unit (20) arranged in the front part of the passenger compartment (3), and the blower device (30) arranged in the part of the passenger compartment on the rear side of the vehicle from the front seat air conditioning unit. With
When the warm air from the front seat air conditioning unit is blown into the front seat foot space (S7a, S7b), the blower moves between the front seat foot space and the rear seat foot space (S8a, S8b). Form a circulating wind flow,
In this air flow, warm air from the front seat air conditioning unit is used in the front seat foot space (S7a) on one side in the vehicle left-right direction, the rear seat foot space (S8a) on one side in the vehicle left-right direction, and the vehicle left-right direction. It is a wind flow that flows in the order of the foot space of the rear seat on the other side (S8b) and the foot space of the front seat on the other side in the left-right direction of the vehicle (S7b).
In the vehicle, seats (7, 8) are arranged in only two rows in the front-rear direction of the vehicle.
The blower has only one blower (36).
The blower is located at the position of the rear seat, which is the second row of seats, and draws and sucks the wind toward the rear side of the vehicle and sends the wind toward the front side of the vehicle.
The blower has a suction part that sucks in the wind and a blowout part that blows out the wind.
The blowout portion is arranged on the other side in the left-right direction of the vehicle from the suction portion.
Further, according to the invention of claim 6 ,
A vehicle air conditioner mounted on a vehicle having a front seat (7) in the passenger compartment and a rear seat (8, 9) located on the rear side of the vehicle from the front seat is
It is a separate body from the front seat air conditioning unit (20) arranged in the front part of the passenger compartment (3), and the blower device (30) arranged in the part of the passenger compartment on the rear side of the vehicle from the front seat air conditioning unit. With
When the warm air from the front seat air-conditioning unit is blown into the front seat foot space (S7a, S7b), the blower is the front seat foot space and the rear seat foot space (S8a, S8b, S9a, S9b). Forming a wind flow that circulates between and
The blower includes a first blower (31) that forms a wind flow from the foot space of the front seat toward the rear side of the vehicle and a second blower (32) that forms a wind flow from the rear side of the vehicle toward the front side of the vehicle. Have and
The first blower and the second blower are arranged so as to be offset from each other in the left-right direction of the vehicle.
The blower further includes a third blower (33) that forms a wind flow that flows in the left-right direction of the vehicle.
The third blower is arranged on the rear side of the vehicle with respect to the first blower and the second blower.

According to these, before warm air from the seat air-conditioning unit is, after reaching the footwell of the rear seat, air flow to reach the footwell of the front seat is formed. That is, the warm air from the front seat air conditioning unit reaches not only the foot space of the front seat but also the foot space of the rear seat. Therefore, it is possible to improve the feeling of heating of the occupants in the rear seats.

In addition, the reference numerals in parentheses of each means described in this column and the scope of claims are an example showing the correspondence with the specific means described in the embodiment described later.

It is a top view of the lower part of the vehicle interior in which the vehicle air conditioner in the first embodiment is arranged. FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. It is sectional drawing of the vehicle which arranged the air conditioner for a vehicle in the comparative example 1. FIG. It is a top view of the lower part of the vehicle interior in which the vehicle air conditioner in the second embodiment is arranged. It is a top view of the lower part of the vehicle interior in which the vehicle air conditioner in the third embodiment is arranged. It is sectional drawing of the 1st and 2nd blowers in 3rd Embodiment. FIG. 7 is a cross-sectional view taken along the line VIII-VIII of FIG. It is sectional drawing of the 1st and 2nd blowers in 4th Embodiment. 9 is a cross-sectional view taken along line X-X of FIG. FIG. 5 is a plan view of the lower part of the vehicle interior in which the vehicle air conditioner according to the fifth embodiment is arranged, as viewed from above. It is a top view of the lower part of the vehicle interior in which the vehicle air conditioner in the sixth embodiment is arranged. It is a top view of the lower part of the vehicle interior in which the vehicle air conditioner in the seventh embodiment is arranged. It is a top view of the lower part of the vehicle interior in which the vehicle air conditioner according to the eighth embodiment is arranged. 9 is a top view of the lower part of the vehicle interior in which the vehicle air conditioner according to the ninth embodiment is arranged. It is a top view of the lower part of the vehicle interior in which the vehicle air conditioner in the tenth embodiment is arranged. It is a top view of the lower part of the vehicle interior in which the vehicle air conditioner according to the eleventh embodiment is arranged. It is sectional drawing of the vehicle which arranged the air conditioner for a vehicle in 12th Embodiment, and is the sectional view corresponding to FIG. It is sectional drawing of the vehicle which arranged the air conditioner for a vehicle in 12th Embodiment, and is the sectional view corresponding to FIG.

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

(First Embodiment)
First, a vehicle equipped with the vehicle air conditioner of the present embodiment will be described.

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

The vehicle air conditioner 10 of the present embodiment includes a front seat air conditioner unit 20. The front seat air conditioning unit 20 is arranged inside the instrument panel 6 and is arranged in the front portion of the vehicle interior 3. The front seat air-conditioning unit 20 air-conditions the vehicle interior space by blowing out temperature-controlled air toward the space on the front seat 7 side of the vehicle interior 3.

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

The front seat air conditioning unit 20 is configured to suck in the inside air from the inside air suction portion 21 at the time of heating, heat the sucked air to form warm air, and blow out the warm air from the foot blowing portion 22. Therefore, during heating, warm air is blown from the driver's seat side foot blowing portion 22a to the foot space S7a (see FIG. 2) of the driver's seat 7a as shown by arrows F10a in FIGS. 1 and 2. As shown by the arrows 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 conditioning unit 202.

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

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

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

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

As shown in FIG. 1, the first blower 31 is arranged at the position of the seat 8a in the second row on the driver's seat side in the passenger compartment 3. The second blower 32 is arranged at the position of the seat 8b in the second row on the passenger seat side in the passenger compartment 3. Therefore, the first blower 31 and the second blower 32 are arranged in a portion of the vehicle interior 3 on the rear side of the vehicle 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 offset from each other in the left-right direction of the vehicle.

As shown in FIG. 2, the first blower 31 is arranged under the seat 8a, that is, between the seat portion on which the occupant of the seat 8a is seated and the floor member 5a. As shown in FIG. 3, the second blower 32 is arranged under the seat 8b, that is, between the seat portion of the seat 8b and the floor member 5a.

The first blower 31 sucks the wind from the front side of the vehicle of the first blower 31 as shown by the arrow F11b in FIG. 1, and blows the wind to the rear side of the vehicle of the first blower 32 as shown by the arrow F11c in FIG. Therefore, the first blower 31 forms a wind flow from the foot space of the front seat 7a toward the rear side of the vehicle, as shown by the arrows F11a, F11b, and F11c in FIG. Therefore, the first blower 31 sends the wind F10a blown from the driver's seat side foot blowing portion 22a to the rear side of the vehicle.

The second blower 32 sucks the wind from the vehicle rear side of the second blower 32 as shown by the arrow F12b in FIG. 1, and blows the wind toward the vehicle front side of the second blower 32 as shown by the arrow F12c in FIG. Therefore, the second blower 32 forms a wind flow from the rear side of the vehicle to the front side of the vehicle as shown by the arrows F12b, F12c, and F12d in FIG. That is, the second blower 32 returns the wind flow formed by the first blower 31 to the front side of the vehicle.

The first blower 31 and the second blower 32 are arranged so as to be offset in the left-right direction of the vehicle. Therefore, the wind flowing in the left-right direction as shown by the arrows F11d and F12a in FIG. 1 in the space under the seat 9 in the third row or the foot space due to the blowout of the first blower 31 and the suction of 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 housed in scroll cases 312 and 322. By the operation of the centrifugal fans 311 and 321, air is sucked from the suction portion of the scroll cases 312 and 322, and air is blown out from the outlet portion of the scroll cases 312 and 222.

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

At the time of heating, the front seat air conditioning unit 20 blows warm air from the foot blowing portion 22 as shown by arrows F10a and 10b in FIGS. The first blower 31 sucks in warm air from the driver's seat side foot blowing portion 22a as shown by arrows F11a and F11b in FIG. 2, and sucks in warm air as shown by arrow F11c in FIG. 2 on the driver's seat side. 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 shown by the arrow F12b in FIG. The second blower 32 blows the wind toward the foot space S7b of the passenger seat 7b as shown by the 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 the arrow F12e in FIG. The front seat air conditioning unit 20 additionally heats the sucked wind and blows it out again from the foot blowing portion 22.

As a result, the warm air from the front seat air conditioning unit 20 flows as shown by the arrows F10a, F11a, F11b, F11c, F11d, F12a, F12b, F12c, F12d, and F12e in FIG. That is, as shown by the arrows F10a, F11a, F11b, F11c, F12b, F12c, F12d, and F12e in FIGS. The foot space S8a of the second row seat 8a, the foot space S9a of the third row seat 9a on the driver's seat side, the foot space S9b of the third row seat 9b on the passenger seat side, the 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 seat is sucked into the front seat air conditioning unit 20. The foot space is a space in which the foot below the knee of the occupant seated in the seat is located, is on the front side of the seat portion of the seat, and is a space below the uppermost portion of the seat portion. Further, the warm air from the passenger seat side foot blowing portion 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 shown by the arrow F10b in FIG.

Next, the vehicle air conditioner 10 of the present embodiment is compared with the vehicle air conditioner J10 of Comparative Example 1 shown in FIG. The vehicle air conditioner J10 of Comparative Example 1 includes a rear seat air conditioner 40 in addition to the front seat air conditioner 20, and does not include the blower 30 of the present embodiment. The vehicle air conditioner 10 of the present embodiment is not provided. Different from.

The rear seat air conditioning unit 40 is arranged at the rear of the vehicle interior, specifically, on the rear side of the vehicle with respect to the seats 9 in the third row. The rear seat air conditioning unit 40 has a heater that heats air using engine cooling water as a heat source.

At the time of heating, the vehicle air conditioner J10 of Comparative Example 1 blows warm air from the foot blowing portion 22 of the front seat air conditioning unit 20 into the foot space of the front seat 7 as shown by the arrows in FIG. Inhale air from the foot space. Further, warm air is blown from the blowout portion of the rear seat air conditioning unit 40 into 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 does not easily reach the foot space of the second row seat 8 away from the foot blowing portion 22. Similarly, the warm air from the rear seat air conditioning unit 40 does not easily reach the foot space of the second row seat 8 away from the outlet of the rear seat air conditioning unit 40. Therefore, the feeling of heating of the occupants of the second row seat 8 is insufficient.

Further, the rear seat air conditioning unit 40 is separated from the engine room 2 located in the front portion of the vehicle 1. Therefore, the piping path for guiding the engine cooling water to the heater of the rear seat air conditioning unit 40 becomes long, and the temperature of the engine cooling water, which reduces the heating of the air, decreases. As a result, the heating efficiency of the vehicle air conditioner J10 of Comparative Example 1 deteriorates. Further, the rear seat air conditioning unit 40 does not have sufficient heating performance, and the feeling of heating of the occupants of the third row 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 conditioner unit 20 is blown into the foot spaces S7a and S7b of the front seat 7, the blower 30 blows the front seat 7. A wind flow that circulates between the foot spaces S7a and S7b of the seat 9 and the foot spaces S9a and S9b of the seat 9 in the third row is formed. As a result, 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 third row seats 9a and 9b, and then the foot space of the front seat 7. A wind flow reaching S7b is formed. That is, the warm air from the front seat air conditioning unit 20 is not only the foot spaces S7a and S7b of the front seats 7, but also the foot spaces S8a and S8b of the second row seats 8 and the foot spaces S9a of the third row seats 9. It also reaches S9b. Therefore, it is possible to improve the feeling of heating of the occupants of the seats 8 and 9 in the second and third rows. Therefore, according to the vehicle air conditioner 10 of the present embodiment, the warm air from the front seat air conditioner unit 20 sufficiently heats not only the front seat 7 but also the occupants of all the seats including the rear seats 8 and 9. Can give a feeling.

Further, according to the vehicle air conditioner 10 of the present embodiment, since the rear seat air conditioner unit 40 is not required, it is possible to suppress the lengthening of the piping path for guiding the hot water, and the hot water is supplied to the heater of the front seat air conditioner unit 20. You can concentrate. Therefore, according to the vehicle air conditioner of the present embodiment, the heating efficiency can be improved as compared with the vehicle air conditioner J10 of Comparative Example 1.

Further, 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 vehicle interior 3 at the time of heating, so that the window fogging can be prevented.

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

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

At the time of heating, the front seat air conditioning unit 20 sucks outside air from the outside air suction unit 23 in the upper layer of the blower unit 201 and the upper layer of the air conditioner unit 202, heats it with the heater core, and blows it out from the defroster outlet and the face outlet. .. 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 blowout portion 22.

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

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

(Third Embodiment)
As shown in FIG. 6, this 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 that of the first embodiment.

Both the first blower 31 and the second blower 31 have a heating function. Specifically, the first blower 31 and the second blower 32 have blower units 31a and 32a for sending air and heating units 31b and 32b for heating the air, respectively. The heating portions 31b and 32b are arranged on the downstream side of the air flow of the blower portions 31a and 32b.

As shown in FIGS. 7 and 8, the blower portions 31a and 32a have centrifugal fans 311, 321 and scroll cases 312 and 222. The heating units 31b and 32b have electric heaters 313 and 323 and cases 314 and 324. The cases 314 and 324 form an air passage inside and house the electric heaters 313 and 323.

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

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

In the present embodiment, the heating portions 31b and 32b are arranged on the upstream side of the air flow of the blower portions 31a and 32a.

Here, when the heating portions 31b and 32b are arranged on the downstream side of the air flow of the blower portions 31a and 32a, the air from the blower portions 31a and 32b flows into the heating portions 31b and 32b. The wind from the blower portions 31a and 32b has a wind direction and flows in a specific direction. Therefore, the wind may not flow uniformly over the entire areas of the heating units 31b and 32b, and the wind may not be heated using the entire areas of the heating units 31b and 32b.

On the other hand, in the present embodiment, since the wind flows uniformly or close to the entire area of the heating units 31b and 32b, the entire area of the heating units 31b and 32b can be used to heat the wind. Therefore, according to the present embodiment, the heating units 31b and 32b can efficiently heat the air as compared with the case where the heating units 31b and 32b are arranged on the downstream side of the air flow of the blower units 31a and 32a. , The 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 30 has the third blower 33. Other configurations of the vehicle air conditioner 10 are the same as those in the first embodiment.

The blower 30 is composed of a first blower 31, a second blower 32, and a third blower 33. The third blower 33 is arranged at the position of the seat 9 in the third row in the passenger compartment 3. Therefore, the third blower 33 is arranged on the rear side of the vehicle with respect to the first blower 31 and the second blower 32. The third blower 33 is arranged at a position between the seat 9a on the driver's seat side and the seat 9b on the passenger seat side. The third blower 33 is arranged below the seat 9. As the third blower 33, the one having the same configuration as the first and second blowers 31 and 32 is used.

The third blower 33 sucks wind from the driver's seat side (that is, the right side of the vehicle) in the vehicle left-right direction of the third blower 33 as shown by the arrow F11d in FIG. 11, and the third blower 33 as shown by the arrow F12a in FIG. The wind is blown to the passenger seat side (that is, the left side of the vehicle) in the left-right direction of the 33 vehicles. Therefore, the third blower 33 forms a wind flow that flows in the left-right direction of the vehicle.

In the present embodiment, during heating, the third blower 33 improves the air flow in the left-right direction on the rear side of the vehicle interior 3. Therefore, in order to surely form a wind flow circulating between the foot spaces S7a and S7b of the front seat 7 and the foot spaces S9a and S9b of the third row seat 9, the configuration of the present embodiment is adopted. Is preferable.

(Sixth Embodiment)
As shown in FIG. 12, the present embodiment is different from the first embodiment in that the blower 30 has the 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 is composed of 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, 32 are used.

The fourth blower 34 is arranged at the position of the driver's seat 7a in the vehicle interior 3. The fourth blower 34 is arranged below the driver's seat 7a. The fourth blower 34 sucks the wind from the front side of the vehicle of the fourth blower 34 as shown by the arrow F11a in FIG. 12, and blows the wind to the rear side of the vehicle of the fourth blower 34 as shown by the arrow F11b in FIG.

Therefore, in the present embodiment, the first blower 31 and the fourth blower 34 form a wind flow from the foot space of the front seat 7a toward the rear side of the vehicle as shown by the arrows F11a, F11b, and F11c in FIG.

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

Therefore, in the present embodiment, the second blower 32 and the fifth blower 35 form a wind flow from the rear side of the vehicle to the front side of the vehicle, as shown by the arrows F12b, F12c, and F12e in FIG.

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

(7th 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 blowout ducts 316 and 326. The front seat air conditioning unit 20 is the same as that of the first embodiment.

According to this, the suction position can be adjusted by the suction ducts 315 and 325. The blowout position can be adjusted by the blowout 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 shown by the 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 shown by the arrows F11c, F12c, and F12d in FIG.

(8th 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 front-rear direction of the vehicle in the vehicle interior 3. Different from the form. The seat 7 in the first row from the front side of the vehicle is the front seat. The seat 8 in the second row from the front side of the vehicle is the rear seat.

The blower 30 is composed of 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 and 32 of the first embodiment.

The first blower 31 is arranged at the position of the driver's seat 7a in the vehicle interior 3. The first blower 31 is arranged below the driver's seat 7a. The first blower 31 sucks the wind from the front side of the vehicle of the first blower 31 as shown by the arrow F11a in FIG. 14, and blows the wind to the rear side of the vehicle of the first blower 31 as shown by the arrow F11b in FIG.

The second blower 32 is arranged at the position of the passenger seat 7b in the passenger compartment 3. The second blower 32 is arranged below the passenger seat 7b. The second blower 32 sucks the wind from the vehicle rear side of the second blower 32 as shown by the arrow F12b in FIG. 14, and blows the wind toward the vehicle front side of the second blower 32 as shown by the arrow F12e in FIG.

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

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

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 rear side of the vehicle, as shown by arrows F11a and F11b in FIG. The third blower 33 and the fourth blower 34 form a wind flow in the left-right direction of the vehicle as shown by arrows F11d and F12a in FIG. The second blower 32 and the fourth blower 34 form a wind flow from the rear side of the vehicle to the front side of the vehicle, as shown by arrows F12b and F12e in FIG.

As a result, as shown by the 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 seat 8b on the passenger seat side, and the foot space of the passenger seat 7b, the space is sucked into the front seat air conditioning unit 20. Therefore, the same effect as that of the first embodiment can be obtained in this embodiment as well.

(9th Embodiment)
As shown in FIG. 15, in this embodiment, the number of blowers constituting the blower 30 is reduced as compared with the eighth embodiment. The blower 30 is composed of a first blower 31 and a second blower 32.

The first blower 31 is arranged at the position of the seat 8a in the second row on the driver's side in the passenger compartment 3. The first blower 31 is arranged below the seat 8a. The first blower 31 sucks the wind from the front side of the vehicle of the first blower 31 as shown by the arrow F11b in FIG. 15, and the passenger seat side of the first blower 31 in the vehicle left-right direction as shown by the arrow F11d of FIG. That is, the wind is blown to the left side of the vehicle).

The second blower 32 is arranged at the position of the seat 8b in the second row on the passenger seat side in the passenger compartment 3. The second blower 32 is arranged below the seat 8b. The second blower 32 sucks the wind from the driver's seat side (that is, the right side of the vehicle) of the fourth blower 34 in the vehicle left-right direction as shown by the arrow F12a in FIG. 15, and the second blower 32 as shown by the arrow F12b in FIG. The wind is blown to the front side of the 32 vehicles.

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 rear side of the vehicle, as shown by arrows F11a and F11b in FIG. The first blower 31 and the second blower 32 form a wind flow in the left-right direction of the vehicle as shown by arrows F11d and F12a in FIG. The second blower 32 forms a wind flow from the rear side of the vehicle to the front side of the vehicle, as shown by arrows F12b and F12e in FIG.

As a result, also in the present embodiment, the warm air from the front seat air conditioning unit 20 is sent to the foot space of the driver's seat 7a, the foot space of the second row seat 8a on the driver's 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 space is sucked into the front seat air conditioning unit 20. Therefore, the same effect as that of the first embodiment can be obtained in this embodiment as well.

(10th Embodiment)
As shown in FIG. 16, in this embodiment, the position of the first blower 31 in the vehicle front-rear direction is changed with respect to the ninth embodiment.

The first blower 31 is arranged at the position of the driver's seat 7a in the vehicle interior 3. The first blower 31 sucks the wind from the front side of the vehicle of the first blower 31 as shown by the arrow F11a in FIG. 16, and blows the wind to the rear side of the vehicle of the first blower 31 as shown by the arrow F11b in FIG.

Also 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 rear side of the vehicle, as shown by arrows F11a and F11b in FIG. The second blower 32 forms a wind flow in the left-right direction of the vehicle as shown by the arrow F12a in FIG. Further, the second blower 32 forms a wind flow from the rear side of the vehicle to the front side of the vehicle as shown by arrows F12b and 12e in FIG.

As a result, also in the present embodiment, the warm air from the front seat air conditioning unit 20 is sent to the foot space of the driver's seat 7a, the foot space of the second row seat 8a on the driver's 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 space is sucked into the front seat air conditioning unit 20. Therefore, the same effect as that of the first embodiment can be obtained in this embodiment as well.

(11th Embodiment)
As shown in FIG. 17, 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, and the blower device 30 is It has only one blower 36. When there are only two rows of seats, it is preferable to adopt the configuration of the present embodiment in order to form a circulating wind flow between the foot space of the front seat 7 and the foot space of the rear seat 8.

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

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

More specifically, in the blower 36, the blowing portion for blowing the wind is located on the passenger seat side in the left-right direction of the vehicle with respect to the suction portion for sucking the wind. The direction of wind blowing from the blowing portion is the front side of the vehicle and the passenger seat side in the left-right direction of the vehicle. Therefore, the blower 36 forms a wind flow toward the rear side of the vehicle on the driver's seat side of the vehicle interior 3 in the left-right direction of the vehicle, as shown by arrows F11a and F11b in FIG. As shown by the 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 of the vehicle interior 3 in the left-right direction of the vehicle.

As a result, also in the present embodiment, the warm air from the front seat air conditioning unit 20 is sent to the foot space of the driver's seat 7a, the foot space of the second row seat 8a on the driver's 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 space is sucked into the front seat air conditioning unit 20. Therefore, the same effect as that of the first embodiment can be obtained in this embodiment as well.

(12th 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 arranged at the position of the second row of seats 8a on the driver's side of the vehicle interior 3 in the front-rear and left-right directions of the vehicle. The second blower 32 is arranged at the position of the seat 8b in the second row 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 arranged in the underfloor space 5c of the vehicle interior 3. The first and second blowers 31 and 32 have suction ducts 315 and 325 and blowout ducts 316 and 326. The suction ducts 315 and 325 are connected to suction ports 5d1 and 5d2 provided on the floor member 5a. The outlet ducts 316 and 326 are connected to outlets 5e1 and 5e2 provided on the floor member 5a.

During heating, the first blower 31 sucks air from the front side of the vehicle of the first blower 31 in the passenger compartment 3 as shown by the arrow F11b in FIG. 18, and in the passenger compartment 3 as shown by the arrow F11c in FIG. The wind is blown to the rear side of the vehicle of the first blower 32. Therefore, as in the first embodiment, the first blower 31 forms a wind flow from the foot space of the front seat 7a toward the rear side of the vehicle, as shown by the arrows F11a, F11b, and F11c in FIG.

At the time of heating, the second blower 32 sucks the wind from the rear side of the vehicle of the second blower 32 in the passenger compartment 3 as shown by the arrow F12b in FIG. 19, and is in the passenger compartment 3 as shown by the arrow F12c in FIG. The wind is blown to the front side of the vehicle of the second blower 32. Therefore, as in the first embodiment, the second blower 32 forms a wind flow from the rear side of the vehicle to the front side of the vehicle, as shown by the arrows F12b, F12c, and F12d in FIG.

Therefore, also in the present embodiment, as in the first embodiment, the blower device 30 moves between the foot spaces S7a and S7b of the front seats 7 and the foot spaces S9a and S9b of the third row seats 9 during heating. Form a circulating wind flow. Therefore, the same effect as that of the first embodiment can be obtained in this embodiment as well.

(Other embodiments)
(1) In each of the above embodiments, a centrifugal blower is used as a blower for the first and second blowers 31, 32 and the like, but another blower such as an axial flow 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 into the foot spaces S7a and S7b of the front seat 7, the blower 30 blows the foot space S7a of the front seat 7. , S7b and the foot spaces S9a and S9b of the seat 9 in the third row formed a circulating wind flow, but the present invention is not limited to this. The blower 30 may form a wind flow that circulates between the foot spaces S7a and S7b of the front seats 7 and the foot spaces S8a and S8b of the second row seats 8. In this case, the feeling of heating of the seat 8 in the second row, that is, the occupant in the rear seat can be improved.

(3) The present invention is not limited to the above-described embodiment, and can be appropriately modified within the scope of claims, and includes various modifications and modifications within an equal range. Further, the above-described embodiments are not unrelated to each other, and can be appropriately combined unless the combination is clearly impossible. Further, in each of the above embodiments, it goes without saying that the elements constituting the embodiment are not necessarily essential except when it is clearly stated that they are essential and when they are clearly considered to be essential in principle. No. Further, in each of the above embodiments, when numerical values such as the number, numerical values, amounts, and ranges of the constituent elements of the embodiment are mentioned, when it is clearly stated that they are particularly essential, and in principle, the number is clearly limited to a specific number. It is not limited to the specific number except when it is done. In addition, in each of the above embodiments, when referring to the material, shape, positional relationship, etc. of the components, etc., except when specifically specified or when the material, shape, positional relationship, etc. are limited in principle. , The material, shape, positional relationship, etc. are not limited.

(Summary)
According to the first aspect shown in part or all of each of the above embodiments, the vehicle air conditioner includes a blower. The blower forms a wind flow that circulates between the foot space of the front seat and the foot space of the rear seat when the warm air from the front seat air conditioning unit is blown into the foot space of the front seat.

Further, according to the second aspect, in the first aspect, the 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, 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 occupants in the rear seats at the rearmost portion.

Further, according to the third viewpoint, in the first and second viewpoints, the blower is a first blower that forms a wind flow from the foot space of the front seat toward the rear side of the vehicle, and a blower from the rear side of the vehicle to the front side of the vehicle. It has a second blower that forms a wind flow toward the side. The first blower and the second blower are arranged so as to be offset from each other in the left-right direction of the vehicle.

It is preferable to adopt such a configuration in order to form a circulating wind flow between the foot space of the front seat and the foot space of the rear seat as in the first and second viewpoints.

Further, according to the fourth aspect, in the third aspect, the blower further includes a third blower that forms a wind flow flowing in the left-right direction of the vehicle. The third blower is arranged on the rear side of the vehicle with respect to the first blower and the second blower.

In order to form a wind flow that circulates between the foot space of the front seats and the foot space of the rear seats as in the first and second viewpoints, it is better to adopt such a specific configuration. preferable.

Further, according to the fifth viewpoint, in the first viewpoint, the vehicle has seats arranged in only two rows in the vehicle interior in the front-rear direction of the vehicle. The blower has only one blower. The blower is arranged at the position of the rear seat, which is the second row of seats, and attracts and sucks the wind toward the rear side of the vehicle and sends the wind toward the front side of the vehicle.

When there are two rows of seats, such a specific configuration is adopted in order to form a circulating wind flow between the foot space of the front seat and the foot space of the rear seat as in the first viewpoint. Is preferable.

Further, according to the sixth aspect, the blower device has a blower portion for sending air and a heating portion for heating the air. According to this, the amount of heat required for heating can be supplemented, and the heating performance can be improved.

Further, according to the seventh aspect, in the sixth aspect, the heating portion is arranged on the upstream side of the air flow of the blower portion. According to this, as compared with the case where the heating unit is arranged on the downstream side of the air flow of the blower unit, the air can be efficiently heated by the heating unit, and the heating efficiency can be improved.

7 Front seats 8 Second row seats 9 Third row seats 10 Vehicle air conditioner 20 Front seat air conditioner 30 Blower 31 First blower 32 Second blower

Claims (8)

A vehicle air conditioner mounted on a vehicle having a front seat (7) and a rear seat (8, 9) located behind the front seat in the vehicle interior.
A blower device (20) that is separate from the front seat air-conditioning unit (20) arranged in the front part of the passenger compartment (3) and is arranged in a portion of the passenger compartment behind the front seat air-conditioning unit. 30)
In the blower device, when warm air from the front seat air conditioning unit is blown into the foot space (S7a, S7b) of the front seat, the foot space of the front seat and the foot space of the rear seat (S8a, S8b). , S9a, S9b) to form a circulating wind flow.
In the wind flow, warm air from the front seat air conditioning unit is applied to the foot space of the front seat on one side in the left-right direction of the vehicle (S7a) and the foot space of the rear seat on one side in the left-right direction of the vehicle (S8a, S9a), vehicle lateral direction of the rear seat of the footwell of the other side (S8b, S9b), Ri air flow der flowing in the order of footwell of the front seats of the other side of the transverse direction of the vehicle (S7b),
The blower includes a first blower (31) that forms a wind flow from the foot space of the front seat toward the rear side of the vehicle and a second blower (32) that forms a wind flow from the rear side of the vehicle toward the front side of the vehicle. And have
Wherein the first blower and the second blower, the vehicle air-conditioning system that is arranged offset in the vehicle left-right directions. According to claim 1, the 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 first blower is arranged at the position of the front seat or the rear seat on one side of the vehicle interior in the left-right direction of the vehicle.
The vehicle air conditioner according to claim 1 or 2, wherein the second blower is arranged at the position of the front seat or the rear seat on the other side of the vehicle interior in the left-right direction of the vehicle. The blower further includes a third blower (33) that forms a wind flow that flows in the left-right direction of the vehicle.
The vehicle air conditioner according to claim 3, wherein the third blower is arranged on the rear side of the vehicle with respect to the first blower and the second blower. A vehicle air conditioner mounted on a vehicle having a front seat (7) and a rear seat (8 ) located on the rear side of the vehicle from the front seat.
A blower device (20) that is separate from the front seat air-conditioning unit (20) arranged in the front part of the passenger compartment (3) and is arranged in a portion of the passenger compartment behind the front seat air-conditioning unit. 30)
In the blower device, when warm air from the front seat air conditioning unit is blown into the foot space (S7a, S7b) of the front seat, the foot space of the front seat and the foot space of the rear seat (S8a, S8b). ) To form a circulating wind flow,
In the wind flow, warm air from the front seat air conditioning unit is applied to the foot space (S7a) of the front seat on one side in the left-right direction of the vehicle and the foot space (S8a ) of the rear seat on one side in the left-right direction of the vehicle. , footwell of the rear seat on the other side of the vehicle lateral direction (S8b), Ri air flow der flowing in the order of footwell of the front seats of the other side of the transverse direction of the vehicle (S7b),
In the vehicle, seats (7, 8) are arranged in only two rows in the front-rear direction of the vehicle.
The blower has only one blower (36).
The blower is arranged at the position of the rear seat, which is the second row of seats, and attracts and sucks the wind toward the rear side of the vehicle and sends the wind toward the front side of the vehicle.
The blower has a suction portion for sucking in the wind and a blowing portion for blowing the wind.
The blowout portion is a vehicle air conditioner arranged on the other side of the suction portion in the left-right direction of the vehicle. A vehicle air conditioner mounted on a vehicle having a front seat (7) and a rear seat (8, 9) located behind the front seat in the vehicle interior.
A blower device (20) that is separate from the front seat air-conditioning unit (20) arranged in the front part of the passenger compartment (3) and is arranged in a portion of the passenger compartment behind the front seat air-conditioning unit. 30)
In the blower, when warm air from the front seat air conditioning unit is blown into the foot space (S7a, S7b) of the front seat, the foot space of the front seat and the foot space of the rear seat (S8a, S8b). , S9a, S9b) to form a circulating wind flow.
The blower includes a first blower (31) that forms a wind flow from the foot space of the front seat toward the rear side of the vehicle and a second blower (32) that forms a wind flow from the rear side of the vehicle toward the front side of the vehicle. And have
The first blower and the second blower are arranged so as to be offset from each other in the left-right direction of the vehicle.
The blower further includes a third blower (33) that forms a wind flow that flows in the left-right direction of the vehicle.
The third blower is a vehicle air conditioner arranged on the rear side of the vehicle with respect to the first blower and the second blower. The vehicle air conditioner according to any one of claims 1 to 6 , wherein the blower has a blower unit (31a, 32a) for sending air and a heating unit (31b, 32b) for heating air. The vehicle air conditioner according to claim 7 , wherein the heating unit is arranged on the upstream side of the air flow of the blower unit.

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