WO2007055045A1

WO2007055045A1 - Automobile air conditioner

Info

Publication number: WO2007055045A1
Application number: PCT/JP2006/310718
Authority: WO
Inventors: Hideki Nagano
Original assignee: Valeo Thermal Systems Japan Corporation
Priority date: 2005-11-10
Filing date: 2006-05-30
Publication date: 2007-05-18
Also published as: JP2007131137A

Abstract

An automobile air conditioner in which a steering member of a vehicle is utilized as an air channel. A portion of the automobile air conditioner is separated as a mixing/blowout mode unit, and the mixing/blowout mode unit is installed at a place that has been a dead space. By this, the volume of installation of the automobile air conditioner is relatively reduced. The mixing/blowout mode unit (24) having an air mixing mechanism and a blowout mode switchover mechanism is separated from a hot/cold air supply unit (2). A hot/cold air guiding structure body (16) utilizes the steering member and has in it a hot air channel (18) and a cold air channel (19). A downstream side connection opening (21), which is on the downstream side of the hot air channel (18) and the cold air channel (19), is provided in the front, in the vehicle advance direction, of the hot/cold air guiding structure body (16). Then, the mixing/blowout mode unit (24) is connected to the downstream side connection opening (21) of the hot/cold air guiding structure body (16).

Description

Specification

Automotive air conditioner

Technical field

TECHNICAL FIELD [0001] The present invention relates to a space-saving air conditioner mounted on, for example, an automobile, and more particularly to a structure of a mixing / blowing mode unit located on the leeward side of an air flow path and an air conditioner for an automobile using the same. is there.

[0002] An automotive air conditioner, for example, in a structure called a full body type, has an air mix mechanism such as a blower, a cooling heat exchanger, a mix door, etc. The exchanger, the air mixing chamber, the temperature-controlled air blowing opening, and the blowing mode mechanism that also has a switching door and the like arranged in the vicinity of the blowing opening are integrated into one case. is usually (for example, see Patent documents 1 and 2.) ₀

[0003] In addition, an air conditioner in which the inside of a structure extending in the left-right direction of the vehicle, such as a steering member, is hollow and the internal space of this structure is used as a part of an air flow path is already known ( For example, see Patent Document 3 and Patent Document 4).

Patent Document 1: Japanese Patent Laid-Open No. 2003-312231

Patent Document 2: JP 2004-149015 A

Patent Document 3: Japanese Unexamined Patent Publication No. 2003-170729

Patent Document 4: Japanese Unexamined Patent Application Publication No. 2004-114863

Disclosure of the invention

Problems to be solved by the invention

[0004] As described above, a cooling heat exchanger, a heating heat exchanger, and the like are provided for a portion having a mixed-blow mode function in which cold air and hot air are mixed and blown into the vehicle interior as described above. To reduce the size of the air conditioner by integrating it with the hot / cold air supply unit part on the leeward side of the supplied hot / cold air supply unit part and with the hot / cold air supply unit part, The air flow direction and passage area of the air flow path leading to the mixing chamber, the volume of the mixing chamber, the structure of the blowing mode switching mechanism, etc. There is also a problem that noise is generated by relatively narrowing. Yes.

[0005] On the other hand, a region on the front side in the vehicle traveling direction with respect to a structure such as a steering member is a dead space in the past, and can sufficiently meet the recent demand for space saving of vehicles. However, the dead space cannot be eliminated even with the conventional examples shown in Patent Document 3 and Patent Document 4 because they have defects.

[0006] Therefore, the present invention actively uses the vehicle structure as an air flow path, separates a part of the air conditioner for the motor vehicle into a unit, and increases the degree of freedom of installation location of this unit. The purpose is to reduce the installation volume of the air conditioner for automobiles.

Means for solving the problem

[0007] An automotive air conditioner according to the present invention defines, in a hollow structure, a hot air passage through which hot air flows and a cold air passage through which cold air flows, and hot air and cold air downstream of both the passages. And an air mix mechanism for controlling the mixing ratio of the hot air from the hot air passage and the cold air of the cold air passage force, and a desired downstream connection port. It is characterized in that it is composed of a mixed blowing mode unit having a blowing mode shelf structure that opens and closes each blowing connection port by moving the switching door according to the blowing mode (claim 1).

[0008] This separates the part having the air mix mechanism and the blowing mode mechanism and configures it as an independent mixing 'blowing mode unit', so the degree of freedom of the installation position of this separated mixing 'blowing mode unit Accordingly, for example, when the structure is a steering member, it can be arranged in a dead space in front of the vehicle traveling direction. In addition, since a hot air passage and a cold air passage are defined inside the structure and used as a part of an air conditioner for automobiles, not only the volume of each hot air passage and cold air passage is expanded, but also the air conditioner The space can be saved. Furthermore, since the automobile air conditioner can be assembled simply by connecting the mixed blowout mode unit to the structure, the assembly of the vehicle air conditioner is facilitated.

[0009] An upstream connection port is provided on the upstream side of the hot air passage and the cold air passage with respect to the structure, and a heater for supplying warm air to the hot air passage is provided at the upstream connection port; Above A hot and cold air supply unit having at least a cooler for supplying cold air to the cold air passage is joined (claim 2). As a result, when air flows from the hot / cold air supply unit to the hot air passage and the cold air passage of the structure, the hot air heated to a desired temperature by passing air through the heater passes through the hot air passage. The passage is supplied with cold air cooled to a desired temperature by passing air through the cooler.

[0010] The air mix mechanism includes a mix door and an actuator that drives the mix door (claim 3). The mixed door is divided into a first door and a second door, and the actuator can control the first door and the second door independently (claims). Section 4).

Thus, for example, in the bi-level mode, the first door and the second door are controlled separately and air flowing from one side of the connection port in the left-right direction of the vehicle is Force on the other side in the right direction The temperature can be made higher than the air that flows in, and the force also flows in the mixing / blowing mode unit in parallel, so it does not mix and warm air and vent air blown directly from the foot outlet connection port The temperature difference from the cold air blown out from the connection port can be maintained.

[0012] The blowing mode mechanism includes a switching door provided at each of the blowing connection ports and an actuator for moving the switching door (claim 5). Each of the switching doors can open and close each of the outlet connection ports independently (Claim 6).

[0013] The automotive air conditioner according to the present invention includes two downstream connection ports that can send hot air and cold air downstream of the hot air passage and the cold air passage to the structure. Open and close each outlet connection port by moving the switching door according to the desired air blowing mechanism and the air mixing mechanism that controls the mixing ratio of the hot air from the hot air passage and the cold air from the cold air passage at the downstream connection port. A mixed air blowing mode unit having the air blowing mode mechanism may be joined (claim 7).

[0014] Thereby, one mixing / blowing mode unit is joined to the driver side with respect to the structure, and the other mixing / blowing mode unit is joined to the passenger side with respect to the structure. It is possible to control the air conditioning independently on the side of the passenger seat, and one mixing It is also possible to use the front unit for air conditioning control for the front seat and the other mixed / blow mode unit for air conditioning control for the front seat.

On the other hand, the mixing and blowing mode unit is provided with a heating auxiliary device on the air flow path leading to the foot blowing connection port and the differential blowing connection port among the blowing connection ports. (Claim 8), and the mixing / blowout mode unit is provided with an air purifier on the air flow path leading to the vent connection port among the respective connection ports. Anyway, (Claim 9).

The invention's effect

[0016] According to the invention described in claim 1, since the portion having the air mix mechanism and the blowing mode mechanism is separated and configured as an independent mixing / blowing mode unit, the separated mixing and blowing mode is configured. The degree of freedom of the installation position of the mode unit can be increased. Accordingly, for example, when the structure is a steering member, it can be arranged in the dead space on the front surface in the vehicle traveling direction. In addition, since a hot air passage and a cold air passage are defined inside a structure such as a steering member and used as a part of an air conditioner for automobiles, not only the volume of each hot air passage and cold air passage is increased. In addition, space-saving of air conditioners can be achieved. Furthermore, since the automobile air conditioner can be assembled simply by connecting the mixed air blowing mode unit to a structure such as a steering member, the assembly of the automobile air conditioner can be facilitated.

[0017] According to the invention described in claim 2, when air is allowed to flow from the hot / cold air supply unit into the hot air passage and the cold air passage of the structure, air is passed through the heater in the hot air passage. The warm air heated to a temperature of 1 can be supplied, and the cool air cooled to a desired temperature can be supplied to the cool air passage by passing the air through the cooler. Further, since the automotive air conditioner can be assembled simply by connecting the hot / cold air supply unit to a structure such as a steering member, the assembly of the automotive air conditioner can be facilitated.

[0018] According to the inventions of claims 3 and 4, by separately controlling the opening and closing of the first door and the opening and closing of the second door, for example, in the bi-level mode, the foot outlet connection port The temperature difference between the wind blown from the air and the wind blown from the vent blow connection port can be determined as appropriate. In particular, according to the invention described in claim 7, one mixing / blowing mode unit is in contact with the structure on the driver's seat side, and the other mixing / blowing mode unit is in contact with the structure on the passenger seat side. By combining them, it is possible to control air conditioning independently using one as the driver's side and the other as the passenger's side, and using one as the front seat and the other as the rear seat. It is also possible to control the air conditioning independently.

[0020] In particular, according to the invention of claim 8, by operating the heating auxiliary device in the mixing / blowing mode unit, when the heat amount of the heater is insufficient, the insufficient heat amount is compensated. be able to. In particular, according to the invention described in claim 9, by operating the air purifier in the mixing and blowing mode unit, the air purifier blown into the vehicle interior from the vent system blowing connection port can be reduced. Can be planned.

Brief Description of Drawings

FIG. 1 is a schematic plan view showing an example of an embodiment of an automotive air conditioner according to the present invention.

[FIG. 2] FIG. 2 is a cross-sectional view of the above-described automotive air conditioner.

FIG. 3 is a cross-sectional view showing a state in which the above-described automotive air conditioner is separated into a hot / cold air supply unit, a structure, and a mixing / blowing mode unit.

FIG. 4 is a perspective view showing the structure of the structure and the mixing / blowing mode unit.

FIG. 5 is a cross-sectional view of the mixing / blowing mode unit.

FIG. 6 is a plan view showing another embodiment of the automotive air conditioner shown in FIG. 1.

[0022] 1 Air conditioner (air conditioner for automobile)

2 Hot / cold air supply unit

11 opening

12 Heater

13 Cooler

16 Hot / cold air guide structure (structure)

17 Partition wall 18 Hot air passage

19 Cold air passage

20 Upstream connection port

21 Downstream connection port

24 mixed 'blowout mode unit

25 opening

28 Mix door

29 doors (first door, second door)

33 Actuator

34 Actuator

36 Outlet connection port (connection port)

37 Outlet connection port (connection port)

38 Outlet connection port (connection port)

39 Outlet connection port (connection port)

41 Switching door

42 Switching door

43 Switching door

44 Switching door

46 Rotation axis

47 Actuator

48 Transmission mechanism

49 Transmission mechanism

50 Transmission mechanism

51 Transmission mechanism

53 Heating accessories

54 Air purifier

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiments of the present invention will be described below with reference to the drawings. Example 1

[0024] The air conditioner 1 shown in Figs. 1 to 5 is used for a single air distribution system with a vehicle force, and includes a hot and cold air supply unit 2, a hot and cold air guide structure 16, It is basically composed of 1 mixed 'blowing mode unit 24.

As shown in FIGS. 2 and 3, the hot / cold air supply unit 2 includes a scroll part 3 and a hot / cold air generating part 4 located on the leeward side, that is, on the rear side in the vehicle traveling direction with respect to the scroll part 3. It consists of.

Of these, the scroll unit 3 houses a fan 6A and a blower 6 having a driving motor 6B force, for example, in a scroll-like casing 5. The blower 6 is laid sideways so as to be juxtaposed along the left and right direction of the vehicle with the fan 6A and the drive motor 6B, and an air suction port 7 is opened on one side of the casing 5. The air suction port 7 is connected to a known intake device (not shown) so as to take in air that has been selectively introduced from the inside / outside air introduction port of the intake device by the intake door.

The hot / cold air generating section 4 has an air flow path 9 extending in the vehicle traveling direction from the leeward side of the blower 6 and then extending upward in the vehicle vertical direction in the casing 8 that is continuous with the casing 5. ing. A drain water discharge port 10 is formed on the bottom surface of the casing 8 for discharging drain water hanging down from a cooler 13 described later.

[0028] An opening 11 is formed on the most leeward side of the portion of the air flow path 9 that extends upward in the vehicle vertical direction. A heater 12 such as a heater core is disposed in the air flow path 9 on the front side in the vehicle traveling direction, and a cooler 13 such as an evaporator is disposed on the rear side in the vehicle traveling direction. That is, the heater 12 and the cooler 13 each have a lower side in the vehicle vertical direction as an air inflow side and an upper side in the vehicle vertical direction as an air outflow surface, while the heater 12 is more forward in the vehicle traveling direction than the cooler 13. In addition, the vehicle is installed so as to have substantially the same height in the vertical direction of the vehicle.

[0029] It is preferable that a heat insulating material 14 is interposed between the heater 12 and the cooler 13 in order to prevent heat conduction with each other.

[0030] In this embodiment, a hot / cold air guide structure (hereinafter referred to as a structure) 16 uses a steering member that extends along the left-right direction of the vehicle, and is shown in FIGS. In this way, the inside is defined as a hot air passage 18 and a cold air passage 19 by a partition wall 17 while being hollow.

[0031] More specifically, the structure 16 is seen along the vehicle traveling direction of the opening 11 of the hot and cold air supply unit 2 as shown in FIGS. The bottom surface 16A, the vehicle rear side surface 16B extending substantially along the vehicle vertical direction, the inclined surface inclined toward the vehicle rear as it proceeds in the vehicle vertical direction, and the upper edge of the inclined surface along the vehicle vertical direction. It is hollow and surrounded by a vehicle front side surface 16C composed of an extending vertical surface and an upper surface 16D extending along the vehicle traveling direction.

As shown in FIG. 3, the structure 16 is connected to the portion of the bottom surface 16A facing the opening 11 of the hot / cold air supply unit 2 on the upstream side having substantially the same opening area as the opening 11 A port 20 is opened, and a downstream side connection port 21 communicating with openings 25 and 26 of a mixing / blowout mode unit 26 described later is opened on an upright side of the vehicle front side surface 16C. The partition wall 17 defines a hot air passage 18 and a cold air passage 19 inside.

[0033] Thereby, the hot air and the cold air sent through the connection portion between the opening 11 of the hot and cold air supply unit 2 and the upstream connection port 20 pass through the hot air passage 18, As the air passes through the cold air passage 19, it separately flows in the structure 16 and is guided to the mixing / blowing mode unit 24 joined to the downstream connection port 21 without being mixed as it is.

[0034] In this embodiment, the mixing / blowing mode unit 24 includes an outer casing 30 in which a part of the downstream connection port 21 force of the structure 16 can be inserted into the structure 16. An opening 25 is opened along the left-right direction of the vehicle on the side where the structure 16 is inserted, and the opening 25 is opened and closed by a mix door 28 constituting an air mix mechanism. .

[0035] In this embodiment, the mix door 28 is composed of two rotary-type doors 29 and 29 each having a substantially semicircular arc-shaped closing portion 29A and 29A as main components. Is a common structure in which the rotating shafts 31 and 31 are fixed to the side portions 29B and 29B provided on the outer sides of the closing portions 29A and 29A. The closing portion 29A is centered on the rotating shaft 31. It can swing within a range of degrees. As shown in FIG. 5, each door 29, 29 is provided with a separate actuator 33, 33 as a drive source for applying a rotational force to the rotary shaft 31. 29 is a force that is controlled to swing simultaneously. It is also possible to control swinging of one door 29 and the other door 29 individually.

For example, one door 29 sets the opening degree of the hot air passage 18 in the downstream connection port 21 of the structure 16 to 100%, and the other door 29 is the downstream connection port of the structure 16. It is also possible to vary the opening degree of the doors 29 and 29 separately so that the opening degree of the cold air passage 19 in 21 is 100%. The structure of the door 29 is not necessarily limited to the rotary type, and may be, for example, a flag type or a butterfly type.

[0037] Inside the casing 30 on the leeward side of the mix door 28, hot and cold air mixing chambers 34A and 34B constituting an air mixing mechanism are defined along the vehicle left-right direction. The hot and cold air mixing chamber 34A is a space in which hot air introduced from the hot air passage 18 and cold air introduced from the cold air passage 19 are appropriately mixed through the left side portion of the opening 25 in the left-right direction of the vehicle. The hot / cold air mixing chamber 34B is a space in which the hot air introduced from the hot air passage 18 and the cold air introduced from the cold air passage 19 are mixed as appropriate through the right portion of the opening 25 in the left-right direction of the vehicle.

[0038] In the present embodiment, the leeward side of the casing 30 with respect to the hot and cold air mixing chambers 34A and 34B is divided into connection ports 36 to 39 for each blowing mode. Each of the connection ports 36 to 39 bends upward in the vehicle vertical direction, and the connection ports 36 to 39 are connected to the base side of the bent portion of the connection ports 36 to 39 for each blowing mode. Switching doors 41 to 44 for opening and closing are arranged.

[0039] In this embodiment, each of the switching doors 41 to 44 is not necessarily limited to a rotary type force, which is a rotary type force having a substantially semicircular arc-shaped closing portion as a main member. A rug type or a butterfly type may be used. The mechanism that swings each switching door 41 to 44 transmits a rotation shaft 46 having an actuator 45 disposed at one end in the longitudinal direction thereof, and appropriately transmits the rotation of the rotation shaft 46 to each switching door 41 to 44. It consists of transmission mechanisms 48-51.

Accordingly, the switching doors 41 to 44 can be configured in common, and the transmission doors 48 to 51 are connected to the actuator 45 serving as a single drive source for the switching doors 41 to 44. By appropriately configuring, the rocking can be performed appropriately.

[0041] Further, for the connection ports 36 to 39 for each blowing mode, for example, the connection ports 37 and 38 are connected to the VE. NT system, connection ports 36 and 39 are FOOT system or DEF system. However, connection port 37, 38F OOT or DEF system, connection port 36, 39 can be VENT system, or connection port 36, 37 can be freely selected as VEN T system, connection port 38, 39 can be selected as FOOT system or DEF system. It is also possible to set.

In the case of the structure as described above, the blow mode switching control is performed as follows. That is, in vent mode, connection port 36, which is the connection port for CZV (center vent), connection port 37, which is the connection port for S / V (side vent), is opened, connection port 38, which is the connection port for FOOT, and connection port for DEF The connecting port 39 is blocked by the switching doors 43 and 44. That is, all the air introduced from the opening 25 is directed to the CZV and SZV connection ports 36 and 37.

[0043] In the BZL mode, the connection ports 36 and 37 for CZV and SZV and the connection port 38 for FOOT are opened, and the connection port 39 for DEF is closed by the switching door 44. The foot connection port 38 is set so as to increase the amount of hot air, and a temperature difference from the cold air from the CZV and SZV connection ports 36 and 37 can be appropriately taken. In addition, the wind that flows from the right side of the vehicle in the left and right direction of the opening 25 and the wind that flows in from the left side of the left and right direction of the vehicle of the opening 25 flow in parallel, so these two winds are mixed and used for CZV and SZV. It is also possible to prevent the difference between the temperature of the air blown from the connection ports 36 and 37 and the temperature of the air blown from the FOOT connection port 38 from being eliminated.

[0044] Further, in the HEAT mode, the connection port 36, 37, 39 force is closed by the switching doors 41, 42, 44 and only the connection port 38 for FOOT is opened, so that the air introduced from the opening 25 All will face the connection port 38 for FOOT. At this time, the doors 29 and 29 of the mix door 28 swing so that the hot air is introduced from the hot air passage 18.

[0045] In the DEF mode, the connection ports 36, 37, 38 are blocked by the switching doors 41, 42, 43, and only the connection port 39 for DEF is opened, so that the air introduced from the opening 25 is All will go to connection port 39 for DEF.

[0046] Then, when the connection port 36 is selected as the connection port for CZV, the connection port 37 is selected as the connection port for SZV, the connection port 38 is selected as the connection port for FOOT, and the connection port 39 is selected as the connection port for DEF. As shown in Fig. 5, the heating accessory 53 is placed on the air flow path from the opening 25 to the connection ports 36 and 37. Alternatively, the air purifier 54 and necessary equipment can be compactly and centrally arranged in the casing 30 on the air flow path from the opening 25 to the connection ports 38 and 39. As a result, the temperature of the hot air blown out from the connection ports 38 and 39 in the FOOT mode and the DEF mode is made more suitable, and the air blown out through the connection ports 36 and 37 to the passengers in the vehicle is improved. Cleanliness can be achieved.

[0047] It should be noted that the sound absorbing devices 52, 52 may be arranged on both sides in the vehicle left-right direction with respect to each hot air passage 18 and cold air passage 19 of the structure 16. As a result, it is possible to absorb noise when air flows in the hot air passage 18 and the cold air passage 19 of the structure 16, so that discomfort to the passengers of the vehicle can be reduced.

Example 2

[0048] By the way, the force S described so far on the assumption that the air conditioner 1 is used for a single air distribution system is not limited to this. Hereinafter, the air conditioner 1 having a different configuration will be described with reference to FIG.

[0049] As shown in Fig. 6, the air conditioner 1 is composed of a single hot / cold air supply unit 2, a single structure 16, and two mixing and blowing mode units 24, 24. It is what.

[0050] Among them, the hot / cold air supply unit 2 includes a scroll portion 3 and a hot / cold air generating portion 4 located on the leeward side of the scroll portion 3, that is, on the rear side in the vehicle traveling direction. As in the previous embodiment, the blower 6 is housed, and in the hot / cold air generating section 4, a heater 12 is disposed in front of the vehicle and a cooler 13 is disposed in parallel along the vehicle traveling direction. is there. For this reason, the details of the structure of the hot / cold air supply unit 2 are given the same reference numerals as in the previous embodiment, and the description thereof is omitted.

[0051] Further, the mixing / blowing mode unit 24 has a force different from that of the previous embodiment. An air mix door 28 for adjusting the mixing ratio of hot air and cold air to be introduced, and hot and cold air that is located on the leeward side of the air mix door 28 and mixed with air appropriately mixed in the air mix door 28 Mixing chambers 34A and 34B, connection ports 36 to 39 for each blowing mode for blowing out air mixed appropriately in the hot and cold air mixing chambers 34A and 34B, and switching for opening and closing these connection ports 36 to 39 In that it is configured with doors 41 to 44, This is the same as the embodiment. For this reason, the details of the structure of the mixing / blowing mode unit 24 are also given the same reference numerals as in the previous embodiment, and the description thereof is omitted.

[0052] On the other hand, the structure 16 has a hollow shape inside and the hot air passage 1 by the partition wall 17 while being hollow.

8 and cold air passage 19 are common to the previous embodiment in that they are defined in the cold air passage 19, but downstream of the structure 16 in the driver's seat side and the passenger seat side along the vehicle lateral direction. The two side connection ports 21 are different in that they are different.

[0053] With this, only by mixing each mixing and blowing mode unit 24 to the downstream side connection port 21 of the structure 16, the left and right wind distribution type of the vehicle or the wind distribution type of the front seat and the rear seat of the vehicle It can be a force S. Since the other structures of the structure 16 are the same as those in the previous embodiment, the same reference numerals are given and description thereof is omitted.

Claims

The scope of the claims

[1] In the hollow structure, a hot air passage through which hot air flows and a cold air passage through which cold air flows are defined, and the downstream side from which both hot air and cold air can be sent out A connection port is formed, and the switching door is moved to the downstream connection port according to a desired blowing mode and an air mix mechanism for controlling a mixing ratio of the hot air from the hot air passage and the cold air from the cold air passage. An automobile air conditioner comprising: a mixed air outlet mode unit having an air outlet mode switching mechanism for opening and closing each air outlet connection port.

[2] An upstream connection port is provided on the upstream side of the hot air passage and the cold air passage with respect to the structure, and a heater for supplying hot air to the hot air passage is connected to the upstream connection port, The automotive air conditioner according to claim 1, wherein a hot / cold air supply unit having at least a cooler for supplying cold air to the cold air passage is joined.

[3] The automotive air conditioner according to claim 1, wherein the air mix mechanism includes a mix door and an actuator that drives the mix door.

[4] The mix door is divided into a first door and a second door, and the actuator can control the first door and the second door separately. The automobile air conditioner according to claim 3.

5. The automotive air conditioner according to claim 1, wherein the blowing mode mechanism includes a switching door provided at each of the blowing connection ports and an actuator for moving the switching door.

6. The automotive air conditioner according to claim 5, wherein each of the switching doors can open and close each of the outlet connection ports independently.

[7] Two downstream connection ports through which hot air and cold air can be sent are formed downstream of the hot air passage and the cold air passage with respect to the structure,

Each outlet connection port is moved to each downstream connection port by moving the switching door according to a desired blowing mode and an air mixing mechanism that controls the mixing ratio of the hot air from the hot air passage and the cold air from the cold air passage. 2. The automotive air conditioner according to claim 1, wherein a mixed air blowing mode unit having a blowing mode switching mechanism that opens and closes is joined.

[8] The mixing / blowout mode unit has a foot blowout among the blowout connection ports therein. The automotive air conditioner according to any one of claims 1 to 7, wherein a heating auxiliary device is provided on the air flow path leading to the connection port for the gas outlet and the connection port for the differential outlet.

9. The mixing / blowout mode unit includes an air purifier provided on an air flow path leading to a vent-type blowout connection port among the blowout connection ports therein. An automobile air conditioner according to any one of the above.