JP2003326939A - Air conditioner for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify an air conditioner and to reduce costs by enabling setting of 2-layer flow mode with a single door. <P>SOLUTION: A part of a suction passage 13 is divided into two passages by a partition 17 provided at a blast case 1. In the 2-layer flow mode, the tip end of an open-side plate door 4 is brought into contact with the tip end of the partition 17, and a first suction passage 13a leading from an indoor air introduction port 11 to a first fan 2 and a second suction passage 13b leading from an outdoor air introduction port 12 to a second fan 3 are divided. In this state, an indoor air introduced through the indoor air introduction port 11 is sucked through the first suction passage 13a to the first fan 2 and sent to a first blast passage 61. In the meantime, an outdoor air introduced through the outdoor air introduction port 12 is sucked through the second suction passage 13b to the second fan 3 and sent to a second blast passage 62. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention forms a first air passage and a second air passage in a case and blows the inside air into the first air passage and the outside air into the second air passage. The present invention relates to a vehicle air conditioner whose mode can be set.

[0002]

2. Description of the Related Art In a conventional vehicle air conditioner capable of setting a two-layer flow mode, a first air passage is formed downstream of an air flow of a first fan, and a second air passage is formed downstream of an air flow of a second fan. A passage is formed. In addition, a main plate door that opens and closes the main inside air introducing port and the outside air introducing port and a sub plate door that opens and closes the sub inside air introducing port are provided.

Both plate doors are linked by a link so that they interlock in a predetermined relationship. Specifically, in the two-layer flow mode, the main plate door opens the outside air introduction port, and the outside air sucked from the outside air introduction port is blown to the second ventilation passage by the second fan, and the sub plate door serves as the outside air introduction port. The sub-inside air introduction port is opened while blocking the passage between the first fan and the suction port, and the inside air sucked from the sub-inside air introduction port is blown to the first blowing passage by the first fan.

[0004]

However, in the above-mentioned conventional device, two plate doors are required to set the two-layer flow mode, and both plate doors are linked in a predetermined relationship. There was a problem that the structure of the link became complicated. Further, the filter is installed near the main plate door, and there is a problem that the inside air sucked from the sub inside air introduction port does not pass through the filter.

The present invention has been made in view of the above points, and an object thereof is to make it possible to set the two-layer flow mode by one door.

[0006]

In order to achieve the above-mentioned object, in the invention described in claim 1, in the first aspect, an air flow is generated.
The fan (2), the second fan (3), and the case (1)
Inside air inlet (11) and outside air inlet (12) which are formed on the upstream side of the air flow of both fans (2, 3)
And an intake passage (13) for communicating the inside air inlet (11) and the outside air inlet (12) with both fans (2, 3),
A first air passage (61) formed on the air flow downstream side of the first fan (2), and a second air passage (62) formed on the air flow downstream side of the second fan (3), The inside air sucked from the inside air introduction port (11) is supplied to both ventilation passages (61, 6).
2) an inside air mode for blowing air, an outside air mode for blowing the outside air sucked from the outside air inlet (12) to both air passages (61, 62), and an inside air blown to the first air passage (61) A vehicle air conditioner capable of setting a two-layer flow mode of blowing air to a second air passage (62), wherein a cantilever plate door (4) is rotatably provided in an intake passage (13), The cantilever door (4) closes the outside air introduction port (12) and opens the inside air introduction port (11) in the inside air mode, and closes the inside air introduction port (11) and opens the outside air introduction port (12) in the outside air mode. Inside air introduction port (1
Open both 1) and the outside air inlet (12), and then 2
In the laminar flow mode, the suction passage (13) is connected to the inside air introduction port (1
1) from the first fan (2) to the first suction passage (13
It is characterized in that it is partitioned into a) and a second suction passage (13b) extending from the outside air inlet (12) to the second fan (3).

According to this, the cantilever plate door itself has a function of partitioning the intake passage into the first intake passage and the second intake passage in the two-layer flow mode, so that one plate door allows two layers. The flow mode can be set. Therefore, the number of plate doors can be reduced, the sub-inside air introduction port can be eliminated, and the link that was provided in the conventional device to interlock both plate doors can be eliminated, which simplifies the air conditioner and reduces costs. Can be achieved.

According to the second aspect of the invention, the first fan (2) and the second fan (3) which generate an air flow, and the air flow of both fans (2, 3) formed in the case (1). Inside air inlet (11) and outside air inlet (12) located upstream, and inside air inlet (11) and outside air inlet (1
2) and the suction passages (1) that connect the fans (2, 3) to each other.
3), a first air passage (61) formed on the air flow downstream side of the first fan (2), and a second air passage (62) formed on the air flow downstream side of the second fan (3). With and
The inside air sucked from the inside air introduction port (11) is supplied to both ventilation passages (6
1, 62) and the outside air inlet (1
2) An outside air mode in which the outside air sucked from 2) is sent to both air passages (61, 62), and two layers in which the inside air is sent to the first air passage (61) and the outside air is sent to the second air passage (62) A vehicle air conditioner capable of setting a flow mode,
A rotary door (8) is rotatably provided in the suction passage (13), and the rotary door (8) is formed so as to extend in the rotation direction, and the inside air introduction port (11) and the outside air introduction are accompanied by the rotation. A door portion (82) for opening and closing the mouth (12) and a door portion (8
The suction passage (13) is formed so as to project from the inner peripheral surface of 2).
To a first intake passage (13a) from the inside air inlet (11) to the first fan (2) and a second intake passage (13b) from the outside air inlet (12) to the second fan (3). With a possible plate-shaped rib (86, 86a), the door portion (8
2) is a two-layer flow mode in which the outside air introduction port (12) is closed and the inside air introduction port (11) is opened in the inside air mode, and the inside air introduction port (11) is closed and the outside air introduction port (12) is opened in the outside air mode. Sometimes both the inside air inlet (11) and the outside air inlet (12) are opened, and the ribs (86, 86a) are 2
In the laminar flow mode, the suction passage (13) is divided into a first suction passage (13a) and a second suction passage (13b).

According to this, the rotary door itself has the function of partitioning the suction passage into the first suction passage and the second suction passage in the two-layer flow mode, so that the two-layer flow mode is realized by one rotary door. Can be set. Therefore, it is possible to reduce the number of doors, and to eliminate the link provided in the conventional device for interlocking both doors, so that the air conditioning device can be simplified and the cost can be reduced.

According to the third aspect of the invention, the filter (5, 5a, 50, 51) for cleaning the air is provided with the suction passage (1
3) is located inside.

According to this, in any mode, the air always passes through the filter and is sucked into each fan, so that all of the sucked air can be cleaned.

In the invention according to claim 4, the filter comprises:
It is characterized by comprising a first filter (50) arranged in the first suction passage (13a) and a second filter (51) arranged in the second suction passage (13b).

By the way, for example, when there is one filter as shown in FIG. 1, the inside air and the outside air may be mixed through the filter in the two-layer flow mode. Mixing of the inside air and the outside air in the mode can be prevented.

The reference numerals in parentheses of the above means indicate the correspondence with the specific means described in the embodiments described later.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) The present invention will be described below based on the embodiments shown in the drawings. The ventilation system of the vehicle air conditioner of the present embodiment includes a blower unit shown in FIG.
It is divided into an air-conditioning unit (not shown) in which an evaporator, a heater core, etc. are built. The blower unit is arranged offset from the center to the passenger seat side in the lower part of the instrument panel in the passenger compartment (not shown), and the air conditioning unit is located in the lower part of the instrument panel in the passenger compartment in the substantially central portion in the vehicle left-right direction. Is located in.

The blower unit is provided with a blower case 1 forming a passage for blown air. At the most upstream part of the airflow of the blower case 1, an inside air introduction port 11 for introducing inside air from the passenger compartment and from the outside of the passenger compartment. An outside air inlet 12 for introducing outside air is formed.

On the downstream side of both inlets 11 and 12 in the air flow, both inlets 11 and 12 and two fans 2 and 3 to be described later are provided.
A suction case 13 is formed by the blower case 1 so as to communicate with the suction port. A door 4, which will be described later, is arranged in the suction passage 13, and a filter 5 for purifying the air introduced from both the inlets 11 and 12 is arranged on the air passage downstream side of the door 4 in the suction passage 13.

The two fans 2 and 3 are arranged on the downstream side of the air flow of the filter 5 and suck and discharge the air from both the inlets 11 and 12. The fans 2 and 3 are well-known centrifugal multiblades. It consists of fans (Sirocco fans). Both fans 2 and 3 are arranged in the scroll case 6 and are simultaneously driven to rotate by one electric motor 7. The rotation axes of the fans 2 and 3 are set to be substantially horizontal.

Then, on the downstream side of both fans 2 and 3 in the air flow, there are two air passages 6 provided by a scroll case 6.
1, 62 are partitioned and formed, the discharge air from the first fan 2 is sent to the air conditioning unit via the first air passage 61, and the discharge air from the second fan 3 is sent through the second air passage 62. It is sent to the air conditioning unit.

A partition plate 17 for partitioning a part of the suction passage 13 into two passages is formed in the blower case 1. As will be described later, in the two-layer flow mode, the partition plate 17 and the door 4 are provided.
The entire intake passage 13 is divided into two passages by the.

The partition plate 17 is formed with a hole 18 for passing the filter 5. The filter 5 is installed so as to pass through the hole 18 of the partition plate 17, and the filter 5 is held by the partition plate 17.

The door 4 is a cantilever type plate door which rotates about a shaft 41. The shaft 41 and the plate portion 42 are integrally formed of resin, and packing 43 is adhered to both sides of the plate portion 42. It is fixed by the means of. The packing 43 has a sealing action of preventing air leakage when the inside air introduction port 11 or the outside air introduction port 12 is closed by the door 4, and a porous elastic material such as urethane foam is preferable.

A shaft 41 of the door 4 is rotatably attached to the blower case 1. A servomotor (not shown) arranged outside the blower case 1 is connected to the shaft 41, and the door 4 is a servomotor. It is driven to move around the shaft 41.

In the two-layer flow mode, the door 4 is in the rotating position shown by the solid line in FIG. 1, and the tip of the plate portion 42 is in contact with the tip of the partition plate 17. The plate 17 divides the suction passage 13 into two passages. That is, the first intake passage 13a from the inside air inlet 11 to the first fan 2 and the second intake passage 13b from the outside air inlet 12 to the second fan 3,
The suction passage 13 is partitioned.

Next, the two-layer flow mode and the inside / outside air mode of the air conditioner having the above structure will be described.

Two-Layer Flow Mode: FIG. 1 shows the state of the two-layer flow mode. As described above, the intake passage 13 is divided into the first intake passage 13a and the second intake passage by the door 4 and the partition plate 17. It is partitioned into the passage 13b. Also, the door 4
Both open the inside air inlet 11 and the outside air inlet 12.

Therefore, in this state, the inside air introduced from the inside air introduction port 11 passes through the first intake passage 13a to the first inside passage 13a.
The inside air is sucked into the fan 2 and the inside air from the first fan 2 is
It is sent to the air passage 61. On the other hand, the outside air introduced from the outside air introduction port 12 is sucked into the second fan 3 via the second intake passage 13b, and the outside air is sent from the second fan 3 to the second blow passage 62. Further, both the inside and outside air pass through the filter 5 and are sucked into the fans 2 and 3.

Inside air mode: In the inside air mode, the door 4
1 is at the rotation position shown by the broken line in FIG. 1, and the door 4 is separated from the partition plate 17, so that the first suction passage 13a and the second suction passage 13 are located on the upstream side of the partition plate 17 in the air flow direction.
b communicates. Further, the door 4 opens the inside air introduction port 11 and closes the outside air introduction port 12.

Therefore, in this state, air is introduced only from the inside air introduction port 11, and the introduced inside air is sucked into the first fan 2 and the second fan 3 and is introduced into both the ventilation passages 61 and 62. Both are sent shy.

Outside air mode: In the outside air mode, the door 4
1 is in the rotation position indicated by the chain double-dashed line in FIG. 1, and the door 4 is separated from the partition plate 17, so that the first intake passage 13a and the second intake passage 13b are located upstream of the partition plate 17 in the air flow direction. Are in communication. Further, the door 4 has an inside air introduction port 11
And the outside air inlet 12 is opened.

Therefore, in this state, air is introduced only from the outside air introduction port 12, and the introduced outside air is sucked into the first fan 2 and the second fan 3 to both the air passages 61 and 62. Both are sent outside air.

In the present embodiment, the two-layer flow mode can be set by one door 4. Therefore, the number of plate doors can be reduced, the sub-inside air introduction port can be eliminated, and the link that was provided in the conventional device to interlock both plate doors can be eliminated, which simplifies the air conditioner and reduces costs. Can be achieved.

Further, in any mode, the air always passes through the filter 5 and is sucked into the fans 2 and 3, so that all the sucked air can be cleaned.

(Second Embodiment) In the first embodiment, the rotating shafts of the fans 2 and 3 are substantially horizontal, but the second embodiment shown in FIG.
In the embodiment, the partition plate 17 remains in the vertical direction and the rotation axes of the fans 2 and 3 are inclined with respect to the horizontal axis. In FIG. 2, the same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

By the way, when the air inlet portion of the air conditioning unit is inclined with respect to the horizontal axis due to the installation form of the evaporator and the like, the rotation axes of both fans 2 and 3 are set with respect to the horizontal axis as in this embodiment. It is preferable that the inclination of the air outlet portion of the blower unit is matched with the inclination of the air inlet portion of the air conditioning unit.

As a result, the connecting duct connecting the air outlet portion and the air inlet portion can be formed in a straight shape without any twist, and the pressure loss in the connecting duct can be reduced.

(Third Embodiment) In the third embodiment shown in FIGS. 3 and 4, a rotary type door 8 is used in place of the cantilever type door 4 in each of the above embodiments.
3 and 4, the same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The door 8 of the present embodiment is a rotary door that rotates about a shaft 81, and the direction of rotation of the door 8
A door portion 82 formed so as to extend in the rotation direction)
Have. The door portion 82 has an arc shape with the axis 81 as the center of the radius of curvature. In this door portion 82,
Both side surfaces of the door 8 in the axial direction (hereinafter referred to as the axial direction) are closed by fan-shaped side plate portions 83.
The shaft 81 is formed so as to extend from the side plate portions 83 toward the outside of the blower case 1, and is attached to the blower case 1 through a hole (not shown) of the blower case 1.

Collar-shaped projecting wall portions 84 and 85 are provided at the ends of the door portion 82 and both side plate portions 83 over the entire circumference thereof. Of the protruding wall portions 84 and 85, the protruding wall portion 8
4 are located at both ends of the door portion 82 in the rotating direction, and are formed so as to project outward in the radial direction from the both ends. The projecting wall portion 85 is formed so as to project outward in the axial direction from both ends of the side plate portions 83 in the rotating direction.

At an intermediate position in the turning direction of the door portion 82,
A plate-shaped rib 86 is formed which extends from the inner peripheral surface of the door portion 82 toward the shaft 81 and projects therefrom. Both side surface portions of the rib 86 in the axial direction are connected to the both side plate portions 83.

The door 8 is made of resin and has the above-mentioned components 81.
~ 86 are integrally molded. Then, the protruding wall portion 84,
A packing 87 made of a porous elastic material is fixed over the entire circumference of both front and back surfaces of 85.

A common seal wall 14 is formed between the inside air inlet 11 and the outside air inlet 12 in the blower case 1, and the first seal walls 15 are formed on both sides of the common seal wall 14 in the rotational direction.
And the 2nd sealing wall 16 is formed.

Partition plate 17a formed on the blower case 1
Extends from the vicinity of the shaft 81 toward the common seal wall 14 side. Further, both end surfaces in the axial direction of the partition plate 17a are close to the both side plate portions 83.

Next, the two-layer flow mode and the inside / outside air mode of the air conditioner having the above structure will be described.

Two-layer flow mode: FIG. 3 shows the state of the two-layer flow mode. The door 8 is at the intermediate position of the rotation range, and the tip of the rib 86 is in contact with the tip of the partition plate 17a. As a result, the suction passage 13 becomes the first suction passage 13a.
And the second suction passage 13b. Further, both the inside air introduction port 11 and the outside air introduction port 12 are half open.

Therefore, in this state, the inside air introduced from the inside air introduction port 11 passes through the first suction passage 13a to the first inside passage 13a.
The inside air is sucked into the fan 2 and the inside air from the first fan 2 is
It is sent to the air passage 61. On the other hand, the outside air introduced from the outside air introduction port 12 is sucked into the second fan 3 via the second intake passage 13b, and the outside air is sent from the second fan 3 to the second air passage 62.

Inside air mode: FIG. 4 shows the state of this inside air mode, in which the door 8 is at the most rotated position counterclockwise, and the packing 87 contacts the common seal wall 14 and the second seal wall 16. The outside air introduction port 12 is fully closed by the door portion 82 and the side plate portions 83. on the other hand,
The inside air introduction port 11 is fully opened. Further, the tip of the rib 86 is separated from the tip of the partition plate 17a, and the first suction passage 13
The a and the second suction passage 13b are in communication with each other.

Therefore, in this state, the air is introduced only from the inside air introduction port 11, the introduced inside air is sucked into both the fans 2 and 3, and the inside air is sent to both the ventilation passages 61 and 62.

Outside air mode: The door 8 is at the most clockwise position, and the packing 87 is at the common seal wall 14.
Also, the inside air introduction port 11 is fully closed by the door portion 82 and both side plate portions 83, which are in contact with the first seal wall 15. On the other hand, the outside air introduction port 12 is fully opened. Further, the tips of the ribs 86 are separated from the tips of the partition plate 17a, and the first suction passage 13a and the second suction passage 13b are in communication with each other.

Therefore, in this state, air is introduced only from the outside air introduction port 12, the introduced outside air is sucked into both the fans 2 and 3, and the outside air is sent to both the ventilation passages 61 and 62.

(Fourth Embodiment) In a fourth embodiment shown in FIG. 5, a filter 5 is attached to the air conditioner of the third embodiment. In FIG. 5, the same parts as those in the fourth embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 5, the partition plate 17a is formed with a hole 18a for allowing the filter 5a to pass therethrough.
Is installed between both side plate portions 83 through the hole 18a. Further, the filter 5a is formed in an arc shape so as to avoid interference with the rib 86 when the door 8 is rotated.

(Fifth Embodiment) In a fifth embodiment shown in FIG. 6, the rib 86 of the fourth embodiment is rotatable. In FIG. 6, the same parts as those in the fifth embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 6, the rib 86a is provided on the door portion 82.
Of the shaft 8 parallel to the shaft 81 at the intermediate position in the rotation direction of the
It is rotatably attached to the door portion 82 and both side plate portions 83 by 9. Also, the blower unit is the partition plate 1
The line connecting 7a and the common seal wall 14 is mounted on the vehicle so that the line connecting the 7a and the common seal wall 14 is substantially vertical.

In the above structure, in the two-layer flow mode,
The rotational position of the door 8 is controlled so that the shaft 89 is located near the common seal wall 14. At this time, the rib 86a is oriented in the vertical direction by its own weight, and the tip position of the rib 86a substantially coincides with the tip position of the partition plate 17a.
3 is divided into a first suction passage 13a and a second suction passage 13b.

Therefore, in this state, the inside air introduced from the inside air introduction port 11 passes through the first suction passage 13a to the first inside passage 13a.
The inside air is sucked into the fan 2 and the inside air from the first fan 2 is
It is sent to the air passage 61. On the other hand, the outside air introduced from the outside air introduction port 12 is sucked into the second fan 3 via the second intake passage 13b, and the outside air is sent from the second fan 3 to the second air passage 62. That is, the two-layer flow mode is realized.

In the inside air mode shown in FIG. 6, the rib 86a is oriented vertically by its own weight as shown by the broken line in FIG. 6, and the rib 86a is further rotated by wind pressure as shown by the solid line in FIG. Therefore, as is clear from comparison with FIG. 4, the passage area between the rib 86a and the partition plate 17a is increased, and the pressure loss between the rib 86a and the partition plate 17a can be reduced.

In the outside air mode as well, as in the inside air mode, the rib 86a is rotated by its own weight and wind pressure.
The passage area between the rib 86a and the partition plate 17a is increased, and the pressure loss between the rib 86a and the partition plate 17a can be reduced.

(Sixth Embodiment) In a sixth embodiment shown in FIG. 7, the filter 5 in the first embodiment is divided into two, and the rotating shafts of both fans 2 and 3 are changed in a substantially vertical direction. . In FIG. 7, the same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 7, in the present embodiment, the first
A first filter 50 arranged in the suction passage 13a and a second filter 51 arranged in the second suction passage 13b are provided. Along with this, the hole 18 (see FIG. 1) of the partition plate 17 is eliminated.

In the two-layer flow mode, the door 4 is at the rotating position shown in FIG. 7, and the front end of the door 4 is in contact with the front end of the partition plate 17. The suction passage 13 is partitioned into a first suction passage 13a and a second suction passage 13b.

By the way, when there is one filter 5 as in the first embodiment, there is a possibility that the inside air and the outside air may be mixed through the filter 5 in the two-layer flow mode. By disposing the independent filters 50 and 51 in the 13a and the second suction passage 13b, respectively, it is possible to prevent the inside air and the outside air from being mixed through the filter in the two-layer flow mode.

(Other Embodiments) In the above embodiment, the door 4 is driven by the servo motor. However, a lever operated by an occupant is connected to the door 4 via a wire to manually operate the door 4. You may make it drive by.

Although the door portion 82 of the door 8 is arcuate in the third to fifth embodiments, the door portion 82 may not be arcuate. That is, the length from the shaft 81 to the outer peripheral surface of the door portion 82 is shorter than the length from the shaft 81 to the common seal wall 14, and the door portion 82 and the common seal wall 14 do not interfere with each other when the door 8 rotates. If

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state of a blower unit in a two-layer flow mode according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state of a blower unit in a two-layer flow mode according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a state of a blower unit in a two-layer flow mode according to a third embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a state of an inside air mode of a blower unit according to a third embodiment.

FIG. 5 is a cross-sectional view showing a state of a blower unit in a two-layer flow mode according to a fourth embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a state of an inside air mode of a blower unit according to a fifth embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a state of a blower unit in a two-layer flow mode according to a sixth embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... 1st fan, 3 ... 2nd fan, 4 ... Cantilever board door, 11 ... Inside air inlet, 12 ... Outside air inlet, 1
3a ... 1st suction passage, 13b ... 2nd suction passage, 61 ... 1st ventilation passage, 62 ... 2nd ventilation passage.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akihiko Tsuge             1-1, Showa-cho, Kariya city, Aichi stock market             Inside the company DENSO

Claims (4)

[Claims] 1. A first fan (2) and a second fan (3) which generate an air flow, and an inside air which is formed in a case (1) and is located on the upstream side of the air flow of the both fans (2, 3). An inlet (11) and an outside air inlet (12), an inlet passage (13) for communicating the inside air inlet (11) and the outside air inlet (12) with both the fans (2, 3), and The first fan formed on the downstream side of the air flow of the first fan (2)
A blower passage (61) and a second blower passage (62) formed on the downstream side of the second fan (3) in the air flow are provided, and the inside air sucked from the inside air inlet (11) is blown into both the blower passages. The inside air mode for blowing air to (61, 62) and the outside air sucked from the outside air inlet (12) are set in both the air passages (6).
1, 62), and a two-layer flow mode in which the inside air is blown to the first blow passage (61) and the outside air is blown to the second blow passage (62) can be set. A vehicle air conditioner, wherein a cantilever plate door (4) is rotatably provided in the intake passage (13), and the cantilever plate door (4) is configured to operate the outside air introduction port (in the inside air mode). 12) is closed and the inside air introduction port (11) is opened, the inside air introduction port (11) is closed and the outside air introduction port (12) is opened in the outside air mode, and the inside air introduction port (12) is opened in the two-layer flow mode. 11) and the outside air inlet (12) are both open, and further, in the two-layer flow mode, the suction passage (13)
From the inside air inlet (11) to the first fan (2)
To the first intake passage (13a) to the outside air introduction port (1
2) the second suction passage (1) from the second fan (3)
A vehicle air conditioner characterized by being partitioned into 3b). 2. A first fan (2) and a second fan (3) which generate an air flow, and an inside air which is formed in the case (1) and is located on the upstream side of the air flow of the both fans (2, 3). An inlet (11) and an outside air inlet (12), an inlet passage (13) for communicating the inside air inlet (11) and the outside air inlet (12) with both the fans (2, 3), and The first fan formed on the downstream side of the air flow of the first fan (2)
A blower passage (61) and a second blower passage (62) formed on the downstream side of the second fan (3) in the air flow are provided, and the inside air sucked from the inside air inlet (11) is blown into both the blower passages. The inside air mode for blowing air to (61, 62) and the outside air sucked from the outside air inlet (12) are set in both the air passages (6).
1, 62), and a two-layer flow mode in which the inside air is blown to the first blow passage (61) and the outside air is blown to the second blow passage (62) can be set. A vehicle air conditioner, wherein a rotary door (8) is rotatably provided in the suction passage (13), and the rotary door (8) is formed so as to extend in a rotation direction, and A door portion (82) for opening and closing the inside air introduction port (11) and the outside air introduction port (12), and the intake passage (13) formed to project from the inner peripheral surface of the door portion (82), A first suction passage (13a) from the inside air introduction port (11) to the first fan (2), and a second suction passage (13b) from the outside air introduction port (12) to the second fan (3) It has a plate-shaped rib (86, 86a) that can be partitioned into The door (82) closes the outside air introduction port (12) and opens the inside air introduction port (11) in the inside air mode, and closes the inside air introduction port (11) in the outside air mode and the outside air introduction port ( 12) is opened to open both the inside air introduction port (11) and the outside air introduction port (12) in the two-layer flow mode, and the ribs (86, 86a) are
The suction passage (13) is replaced with the first suction passage (13a).
And the second suction passage (13b). 3. A filter for cleaning the air (5, 5a,
Vehicle air conditioner according to claim 1 or 2, characterized in that 50, 51) are arranged in the suction passage (13). 4. The filter comprises the first suction passage (1).
3a) a first filter (50) and a second filter (5) arranged in the second suction passage (13b).
The vehicle air conditioner according to claim 3, wherein the air conditioner comprises: