JP2017177833A - Air-conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioner for a vehicle that independently controls air-conditioning for a front seat and a rear seat while suppressing manufacturing costs by sharing a core casing for air-conditioning only a front seat side, and air-conditioning both the front seat side and the rear seat side.SOLUTION: A rear case 60 for air-conditioning a rear seat side is detachably disposed to a front case 12 for air-conditioning a front seat side. When air-conditioning the front seat side and the rear seat side simultaneously, the air from a first blower 42 is caused to flow to a front seat passage 22 in the front case 12 so that temperature-controlled air is blown to the front seat side in a cabin, and the air from a second blower 62 provided at the rear case 60 is caused to flow to a rear seat passage 73 so that temperature-controlled air is blown to the rear seat side in the cabin. Meanwhile, by detaching the rear case 60 and using the front case 12 only, air-conditioning of the front seat side only is made possible.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle air conditioner that is mounted on a vehicle and that adjusts the temperature of the vehicle interior by blowing air that has been temperature-adjusted by a heat exchanger into the vehicle interior.

  The present applicant takes air from the blower into the front case, and drives the air mix damper by driving the air mix damper with the cool air cooled by the evaporator as the cooling means and the warm air heated by the heater core as the heating means. After mixing at a mixing ratio, for example, a vehicle air conditioner that can blow air from a plurality of air outlets provided in the front case into the vehicle interior has been proposed (see Patent Document 1).

  This vehicle air conditioner has a first blower for blowing air to the front seat side of the vehicle and a second blower for blowing air to the rear seat side, and blows air to the front seat side in a single front case. A front-seat passage for carrying out and a rear-seat passage for sending air to the rear seat side.

  Further, Patent Document 2 discloses a vehicle air conditioner in which the temperature of the front seat side and the rear seat side can be independently adjusted, and a front seat passage for blowing air to the front seat side is provided as a case body. The rear seat case provided with the rear seat passage is detachable from the case main body. When air conditioning is performed only on the front seat side, only the case main body is provided, and the rear seat side air conditioning is also performed. In some cases, the rear seat case is attached.

JP 2011-85381 A JP 2005-67271 A

  In vehicles equipped with the air conditioning system for vehicles as described above, the air conditioning of the front seat side and the rear seat side may be controlled independently in the advanced grade, and the air conditioning of the front seat side and the rear seat side may be independently controlled in the low-grade grade. .

  In such a case, in the vehicle air conditioner according to Patent Document 1 described above, it is necessary to make the front seat, the front seat, and the rear seat separately, which leads to an increase in manufacturing cost.

  Moreover, in the vehicle air conditioner of Patent Document 2, the temperature of the front seat side and the rear seat side can be adjusted independently, but a blower for blowing air to the front seat side and a blower for blowing air to the rear seat side Therefore, there is a problem in that it is impossible to independently control the air flow rates on the front seat side and the rear seat side.

  The present invention has been made in consideration of the above-mentioned problems, and reduces the manufacturing cost by sharing the core casing when air-conditioning only the front seat side and when air-conditioning the front seat side and the rear seat side. However, an object of the present invention is to provide a vehicle air conditioner capable of independently controlling the air conditioning of the front seat side and the rear seat side.

In order to achieve the above-described object, the present invention provides an air flow path for blowing air to a first area in a vehicle interior, a core casing in which a cooler and a heater are disposed, and a vehicle relative to the core casing. In a vehicle air conditioner having a first blower provided in the width direction,
The core casing has a first opening that opens to the lower side of the cooler and / or the heater,
Independent of the air flow path of the core casing, the expansion casing having an air flow path for blowing air to the second area in the vehicle interior,
The expansion casing includes a second blower provided on the front side of the vehicle,
A second opening that opens upward and is connectable to the first opening;
Have
The first opening is formed such that either the lid member or the expansion casing that closes the first opening can be selectively attached,
When the expansion casing is attached to the core casing, the cooler and / or the heater is disposed in the air flow path in the core casing and the expansion casing through the first opening and the second opening.

  According to the present invention, a first opening provided with a core casing having a first air blower and having an air flow passage capable of blowing air in a first area in a vehicle interior and opened to a lower side of a cooler and / or a heater. An expansion casing having an air flow path for blowing air to the second area in the vehicle interior is provided in the part so as to be connectable via the second opening, independent of the air flow path of the core casing. And when attaching an expansion casing with respect to a core casing, a cooler and / or a heater are arrange | positioned in the air flow path in a core casing and an expansion casing through a 1st opening part and a 2nd opening part.

  Therefore, the first casing and the second casing can be connected to the core casing that has the first blower and can blow air to the first area by connecting the expansion casing that has the second blower and blows air to the second area. It is possible to easily configure a vehicle air conditioner capable of simultaneously blowing air in the area, and to share the core casing when performing air conditioning only on the front seat side and when performing air conditioning on the front seat side and the rear seat side. Thus, the air conditioning on the front seat side and the rear seat side can be independently controlled while suppressing the manufacturing cost.

  According to the present invention, the following effects can be obtained.

  That is, the first opening provided with a core casing having a first blower and having an air flow passage capable of blowing air in a first area in the passenger compartment, and opened on the lower side of the cooler and / or the heater, An expansion casing having an air flow path that blows air to the second area in the vehicle interior independently of the air flow path of the core casing is provided to be connectable via the second opening.

  And when attaching an expansion casing with respect to a core casing, by arrange | positioning a cooler and / or a heater in the air flow path in a core casing and an expansion casing through a 1st opening part and a 2nd opening part, 1st and A vehicle air conditioner capable of air-conditioning and air-conditioning simultaneously to the second area can be easily configured. As a result, it is possible to reduce the manufacturing cost by sharing the core casing between the case where only the front seat side is air-conditioned and the case where the front seat side and the rear seat side are air-conditioned. Air conditioning can be controlled independently.

1A is an overall cross-sectional view of a vehicle air conditioner according to an embodiment of the present invention, and FIG. 1B is a front view of the vehicle air conditioner of FIG. 1A. 1B is an overall cross-sectional view showing a vehicle air conditioner that performs air conditioning of the front seat side and the rear seat side by attaching a rear case to the front case of FIG. 1A, and FIG. 2B is a diagram of the vehicle air conditioner of FIG. It is a front view.

  DESCRIPTION OF EMBODIMENTS Preferred embodiments of a vehicle air conditioner according to the present invention will be described in detail below with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a vehicle air conditioner according to an embodiment of the present invention. In the following description, the right side (arrow A direction) of the vehicle air conditioner shown in FIG. 1 is described as the front side of the vehicle, and the left side (arrow B direction) is described as the rear side of the vehicle.

  This vehicle air conditioner 10 is used when air conditioning is performed on the front seat side (first area) of a vehicle, and as shown in FIGS. 1A and 1B, a front case ( Core casing) 12, a blower unit 14 connected to the side of the front case 12 and taking in outside air and inside air, an evaporator 16 disposed in the front case 12 for cooling the air, and heating the air And a damper mechanism 20 that switches the flow of air flowing through the passages.

  The front case 12 is composed of, for example, a resin case and a substantially symmetrical split case. The split case is provided so as to be split in the width direction of the vehicle (in the direction of arrow C in FIG. 1B), and inside the vehicle, It has a front seat passage (air channel) 22 (see FIG. 1A) for blowing air to the front seat side in the room.

  Also, above the front case 12, there are opened a vent air outlet 24 for sending air near the occupant's face and a defroster air outlet 26 adjacent to the vent air outlet 24 and sending air near the front window of the vehicle. Yes. On the other hand, on the rear side of the front case 12 (in the direction of arrow B), a heat blowing port 28 that opens to the side surface and blows air near the feet of the occupant is formed.

  A first insertion port (first opening) 30 is formed below the front case 12 so as to face the lower end of the evaporator 16. The first insertion port 30 has a bottomed drain pan (lid member). ) 32 is installed and closed. The drain pan 32 is provided detachably with respect to the first insertion port 30 and has a drain port 34 protruding downward from the bottom thereof. And the condensed water adhering to the evaporator 16 falls to the drain pan 32, and is discharged | emitted from the drain port 34 outside.

  Further, a second insertion port (first opening) 36 is formed below the front case 12 at a position facing the lower end of the heater core 18, and a cover member (lid member) 38 is attached to the second insertion port 36. Is blocked. The cover member 38 is detachably provided to the second insertion port 36.

  As shown in FIG. 1B, the blower unit 14 is provided on the side in the vehicle width direction (arrow C direction) with respect to the front case 12, and is housed in a casing 40 and a lower portion of the casing 40. It consists of a blower 42, and an open air inlet (not shown) and an open air inlet 44 for introducing the outside air / inside air are opened at the top of the casing 40.

  The casing 40 is connected to the front case 12 via a connecting duct 46 that is connected to the side, and the casing 40 is connected to the inside of the casing 40 from either the outside air inlet or the inside air inlet 44 under the driving action of the first blower 42. The air taken in is supplied to the front case 12 through the connecting duct 46.

  As shown in FIG. 1A, the evaporator 16 circulates refrigerant through a plurality of tubes (not shown), and exchanges heat with air passing between the tubes, so that cold air is used for the front seats. In the passage 22, it is supplied downstream. The heater core 18 is provided on the downstream side of the evaporator 16, and hot water from an internal combustion engine (not shown) circulates in the interior, thereby exchanging heat with air passing therethrough and in the front seat passage 22, Is supplied.

  The damper mechanism 20 includes an air mix damper 48 provided between the evaporator 16 and the heater core 18, a vent damper 50 that switches the air blowing state of the vent air blowing port 24 and the defroster air blowing port 26, and the heat air blowing port 28 from the front seat passage 22. And a heat damper 52 for adjusting the air blowing state.

  The air mix damper 48 is formed in, for example, a curved plate shape, is provided along the width direction of the front case 12, and both sides thereof can be guided along guide means provided on the inner wall surface of the front case 12. Is provided. The pinion gear 58 of the shaft 56 that is pivotally supported by the front case 12 is meshed with the rack gear 54 formed on the inner wall surface of the air mix damper 48. The air mix damper 48 slides along the guide means as the shaft 56 rotates under the action of an actuator (not shown), and sends air flowing between the evaporator 16 and the heater core 18 toward the heater core 18. Adjust the air volume.

  The shaft portion of the vent damper 50 is supported between the vent air blowing port 24 and the defroster air blowing port 26 and has a door portion extending from the shaft portion. The vent damper 50 is rotated through the shaft portion under the driving action of an actuator (not shown), so that either the vent air blowing port 24 or the defroster air blowing port 26 is closed.

  The heat damper 52 has, for example, a shielding wall formed in a circular arc shape with the shaft portion as the center, and opens and closes the heat blower opening 28 of the front case 12 by rotating about the shaft portion.

  Next, see FIG. 2A and FIG. 2B for a rear case (expansion casing) 60 that is attached to the front case 12 when air conditioning is performed on the rear seat side (second area) simultaneously with the front seat side of the vehicle. While explaining.

  The rear case 60 is made of a resin material, for example, like the front case 12, and is detachably provided so as to wrap around the lower portion of the front case 12 from the vehicle front side to the vehicle rear side.

  The rear case 60 includes, for example, a scroll portion 64 that is formed on the vehicle front side (in the direction of arrow A) and accommodates the second blower 62, a first passage portion 66 that is formed on the downstream side of the scroll portion 64, and the A storage portion 68 formed on the downstream side of the first passage portion 66 and storing a part of the evaporator 16a; a second passage portion 70 formed on the downstream side of the storage portion 68 and provided with a portion of the heater core 18a; A rear seat blower 72 that opens to the downstream side of the second passage portion 70 and blows air toward the rear seat side of the vehicle interior.

  The air passage 74, the first and second passage portions 66 and 70, the storage portion 68, and the rear seat air blowing portion 72 of the scroll portion 64 are provided with a rear seat passage 73 that sends air to the rear seat side of the vehicle interior. Become.

  The scroll unit 64 has a second blower 62 housed in the center thereof, and the second blower 62 is provided so that its axis is along the width direction of the vehicle (the direction of the arrow C) and the outer periphery of the second blower 62. A spiral air passage 74 is formed so as to surround the side. The air passage 74 is formed clockwise from the lower side of the second blower 62, and extends toward the front side of the vehicle (in the direction of arrow A) while the passage cross-sectional area gradually increases. A nose portion 76 is formed at the end opened below the air passage 74 and is connected to the first passage portion 66.

  The first passage portion 66 extends from the nose portion 76 downward and obliquely toward the rear of the vehicle (in the direction of arrow B), and extends to the storage portion 68 that extends in the substantially horizontal direction on the downstream side and expands downward. Connected.

  The storage portion 68 is formed with a third insertion port (second opening) 78 that opens to the top facing the front case 12, and the third insertion port 78 faces the first insertion port 30 of the front case 12 and communicates therewith. To be arranged.

  A first claw portion 80 protruding toward the front case 12 is formed at the edge of the third insertion port 78, and the first claw portion 80 is engaged with the outside of the first insertion port 30. Thus, the third insertion port 78 and the first insertion port 30 are fixed in a state of communicating with each other. The first insertion port 30 and the third insertion port 78 are opened with substantially the same area.

  A first partition wall 82 protruding inward is formed at the edge of the third insertion port 78.

  Then, the lower portion of the evaporator 16 a stored in the front case 12 is inserted into the storage portion 68 through the first insertion port 30 and the third insertion port 78, and is provided at the lower portion of the storage portion 68. The lower end portion is held by the 1 holding portion 84. This evaporator 16a has a large capacity to perform air conditioning to the front seat side and the rear seat side simultaneously with respect to the evaporator 16 provided in the front case 12 for performing air conditioning only to the front seat side. It is used and arranged so as to straddle the front case 12 and the rear case 60.

  In other words, the evaporator 16a is used for air conditioning on the front seat side with the upper side facing the front seat passage 22 in the front case 12, and the lower side faces the rear seat passage 73 in the rear case 60 with the rear seat. Used for side air conditioning.

  Further, a first partition wall 82 is provided on the side surface of the evaporator 16 a inserted through the third insertion port 78 so as to partition the front seat passage 22 and the rear seat passage 73.

  On the other hand, the bottom of the storage portion 68 bulges downward in a rectangular cross section, and a drain port 86 that protrudes downward and communicates with the inside is formed at the bottom. And the condensed water adhering to the evaporator 16a falls to the bottom part of the accommodating part 68, and is discharged | emitted outside through the drain port 86. FIG.

  The second passage portion 70 is formed on the downstream side of the evaporator 16 a, and the lower portion of the heater core 18 a is inserted through a fourth insertion port (second opening) 88 that opens upward, and faces the fourth insertion port 88. The lower end portion of the heater core 18a is held by the second holding portion 90 formed as described above. Further, the heater core 18a has a large capacity for performing air conditioning to the front seat side and the rear seat side simultaneously with respect to the heater core 18 provided in the front case 12 for performing air conditioning only to the front seat side. And is arranged so as to straddle the front case 12 and the rear case 60.

  In other words, the upper side of the heater core 18a faces the front seat passage 22 in the front case 12 and is used for air conditioning on the front seat side, and the lower side faces the rear seat passage 73 in the rear case 60 and faces the rear seat side. Used for air conditioning.

  The edge of the fourth insertion opening 88 has a second claw portion 92 projecting toward the front case 12 and a second partition wall 94 projecting inward. The second claw portion 92 Is engaged with the outside of the second insertion port 36, so that the fourth insertion port 88 and the second insertion port 36 are fixed in a state of communicating with each other. The second partition wall 94 is provided so as to be close to the side surface of the heater core 18 a inserted through the fourth insertion port 88, and partitions the front seat passage 22 and the rear seat passage 73.

  The second passage portion 70 includes a hot air passage 96 in which the heater core 18 a is disposed, and a bypass passage 98 that bypasses the lower side of the heater core 18 a, and the hot air passage 96 and the bypass passage 98 are connected to each other. A first switching damper 100 is provided at the branch portion.

  Then, by rotating the first switching damper 100 under the driving action of an actuator (not shown), the hot air passage 96 and the bypass passage 98 are switched to be in a communication state on the downstream side of the heater core 18a.

  In the second passage portion 70, the warm air passage 96 and the bypass passage 98 are joined on the downstream side of the heater core 18 a and communicated with the rear seat air blowing portion 72.

  The rear-seat air blower 72 opens in the horizontal direction toward the rear of the vehicle (in the direction of arrow B), and is formed at the top, and the rear-seat vent air vent 102 that blows air to the vicinity of the passenger's heel in the rear seat in the vehicle interior; The rear air vent vent 102 and the rear air vent 104 are formed below the rear air vent 102 and vent to the vicinity of the passenger's feet in the rear seat. A second switching damper 106 is provided between the first switching damper 104 and the second switching damper 106.

  Then, by rotating the second switching damper 106 under the driving action of an actuator (not shown), one of the rear seat vent air vent 102 and the rear seat heat air vent 104 on the downstream side of the second passage portion 70. Is switched to a communication state.

  As shown in FIG. 2A, the rear case 60 is arranged such that the scroll portion 64 is in front of the vehicle (in the direction of arrow A) of the defroster air outlet 26 in the front case 12, and the rear seat air blowing portion 72 is a heater core. The rear case 60 is fixed to the front case 12 by fastening bolts (not shown) in a state where the rear case 60 is disposed behind the vehicle 18a (arrow B direction). As a result, the vehicle air conditioner 108 capable of independently blowing air to the front seat side and the rear seat side is configured.

  The vehicle air conditioners 10 and 108 according to the embodiment of the present invention are basically configured as described above, and the operation and effects thereof will be described next.

  First, as shown in FIGS. 1A and 1B, a case will be described in which the rear case 60 is not attached to the front case 12 and only the front seat side air conditioning in the vehicle is performed by the vehicle air conditioner 10.

  First, based on a control signal from a controller (not shown), the first blower 42 of the blower unit 14 is rotationally driven, whereby air is sucked into the casing 40, and the air enters the front case 12 through the connection duct 46. be introduced.

  After this air flows along the front seat passage 22 and is cooled by passing through the evaporator 16, for example, when the air is blown near the passenger's heel in the front seat, the air mix damper 48 moves the heater core 18 toward the heater core 18 side. By shutting off the flow, the air is blown directly from the vent air vent 24 into the vehicle interior without passing through the heater core 18. On the other hand, when the air is blown near the feet of the passengers in the front seat, the heated warm air is released by the heat damper 52 by circulating the cold air toward the heater core 18 by moving the air mix damper 48 upward. Then, the air is blown into the vehicle interior through the heat blowing port 28.

  Next, a case where the rear case 60 is attached to the front case 12 that performs air conditioning on the front seat side and the vehicle air conditioner 108 for the front seat and the rear seat is provided to perform the air conditioning on the rear seat side will be described. . In addition, the 2nd air blower 62 shall be the state attached to the scroll part 64 of the rear case 60 previously.

  First, the drain pan 32 and the cover member 38 are removed downward from the front case 12 of the vehicle air conditioner 10 for the front seat in FIG. 1A to open the first and second insertion ports 30 and 36, and the evaporator 16 and The heater core 18 is replaced with a large evaporator 16a and heater core 18a capable of air conditioning on the rear seat side. As a result, the lower portions of the evaporator 16a and the heater core 18a are projected downward from the front case 12 through the first and second insertion ports 30 and 36.

  Next, the rear case 60 is approached from below the front case 12 so that the scroll portion 64 is on the front side of the vehicle (in the direction of arrow A) and the rear seat blower portion 72 is on the rear side of the vehicle (in the direction of arrow B). The lower portion of the evaporator 16 a is inserted into the storage portion 68 through the third insertion port 78, and the lower portion of the heater core 18 a is inserted into the second passage portion 70 through the fourth insertion port 88. Then, by engaging the first and second claw portions 80 and 92 in the rear case 60 with the first and second insertion ports 30 and 36, respectively, the first insertion port 30 and the third insertion port 78 are connected. The second insertion port 36 and the fourth insertion port 88 are connected to each other in communication.

  Finally, with the rear case 60 disposed so as to surround the front side, the lower side and the rear side of the vehicle with respect to the front case 12, as shown in FIGS. 2A and 2B, the rear case 60 is The case 12 is fixed by a plurality of fastening bolts (not shown). The rear seat air blower 72 is connected to a duct (not shown) to communicate with the rear seat side of the vehicle interior. Thus, the vehicle air conditioner 108 capable of air conditioning on the front seat side and the rear seat side is configured.

  Next, the case where air conditioning of the front seat side and the rear seat side is performed by the vehicle air conditioner 108 in which the rear case 60 is mounted on the front case 12 will be described. In addition, since the air conditioning of the front seat side performed simultaneously with the air conditioning of the rear seat side is substantially the same as that described above, only the air conditioning of the rear seat side will be described here.

  First, on the basis of a control signal from a controller (not shown), the second blower 62 is rotationally driven, so that air is sucked into the scroll part 64, and the first air through the nose part 76 while turning along the scroll part 64. The air is circulated to the passage portion 66. The air flows from the first passage portion 66 to the second passage portion 70 after being cooled by passing through the evaporator 16 a in the storage portion 68.

  For example, when air is blown to the vicinity of the occupant's face in the rear seat, the air is blown from the rear seat vent blower opening 102 into the vehicle compartment through the bypass passage 98 opened by the first switching damper 100.

  On the other hand, when air is blown to the vicinity of the feet of the occupant in the rear seat, the first switching damper 100 opens the warm air passage 96 so that air passes through the heater core 18 a and is heated, and then the second switching damper 106. The air is blown into the passenger compartment through the rear-seat heat blowing port 104 opened by.

  In such a case, the first and second partition walls 82 and 94 protrude from the edges of the third and fourth insertion ports 78 and 88 in the rear case 60 toward the side surfaces of the evaporator 16a and the heater core 18a. Therefore, the air flowing in the rear case 60 is prevented from flowing into the front case 12 side (front seat passage 22 side), and conversely, the air flows to the front seat side flowing in the front case 12. Is prevented from flowing into the rear case 60 side (rear seat passage 73 side).

  As described above, in the present embodiment, the rear that blows air to the rear seat side with respect to the front case 12 that constitutes the vehicle air conditioner 10 for the front seat that performs air conditioning only on the front seat side in the vehicle interior. By mounting the case 60, the front case 12 and the vehicular air conditioner 108 for the front seat and the rear seat capable of independently controlling the air conditioning of the front seat side and the rear seat side are configured by sharing the front case 12. Can do. As a result, the vehicle air conditioner 10 is compared with the case where the vehicle air conditioner for the front seat and the vehicle air conditioner for simultaneously performing the air conditioning on the front seat side and the rear seat side are manufactured as completely different configurations. 108, the manufacturing cost can be greatly reduced.

  In other words, even if a low-grade grade that air-conditions only the front seat in the same vehicle type and an advanced grade that independently controls the air-conditioning on the front seat side and the rear seat side, separate vehicle air conditioners are prepared. There is no need, and two types of vehicle air conditioners 10 and 108 can be set using the same front case 12, thereby reducing costs.

  Further, since the first blower 42 for performing air conditioning on the front seat side and the second blower 62 for performing air conditioning on the rear seat side are provided separately, the front seat side and the rear seat side are respectively provided. Air conditioning control can be performed independently.

  Further, the second blower 62 that blows air to the rear seat side is disposed on the vehicle front side (arrow A direction) in the rear case 60 in which the rear seat passage 73 is formed, so that the vehicle front to the vehicle rear side. Since the air can be smoothly blown, the pressure loss of the air can be reduced, and the second blower 62 serving as a noise source can be moved from the passenger in the vehicle compartment on the vehicle rear side (arrow B direction). Since it can be kept away, it is suitable without impairing comfort.

  In addition, the vehicle air conditioner according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10, 108 ... Vehicle air conditioner 12 ... Front case 14 ... Blower unit 16, 16a ... Evaporator 18, 18a ... Heater core 20 ... Damper mechanism 22 ... Front seat passage 30 ... First insertion port 32 ... Drain pan 36 ... Second insertion Port 38 ... Cover member 42 ... First blower 60 ... Rear case 62 ... Second blower 64 ... Scroll part 66 ... First passage part 68 ... Storage part 70 ... Second passage part 72 ... Rear seat blower part 73 ... Rear seat Passage 78 ... Third insertion port 88 ... Fourth insertion port 100 ... First switching damper 102 ... Rear seat vent ventilation port 104 ... Rear seat heat ventilation port 106 ... Second switching damper

Claims (1)

An air flow path for blowing air to the first area in the passenger compartment, a core casing in which the cooler and the heater are disposed, and a first blower provided in the vehicle width direction with respect to the core casing In vehicle air conditioners,
The core casing has a first opening that opens to the lower side of the cooler and / or the heater,
Independent of the air flow path of the core casing, comprising an expansion casing having an air flow path for blowing air to the second area in the vehicle interior,
The expansion casing includes a second blower provided on the vehicle front side,
A second opening that opens upward and is connectable to the first opening;
Have
The first opening is formed so that either one of the lid member closing the first opening and the expansion casing can be selectively attached,
When the expansion casing is attached to the core casing, the cooler and / or the heater is disposed in an air flow path in the core casing and the expansion casing through the first opening and the second opening. An air conditioner for a vehicle.

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