KR20180001612A - Two layer type air conditioner for vehicle - Google Patents

Abstract

The present invention discloses an air conditioning device for a two-tiered vehicle which is capable of controlling a two-tiered flow and three-zone, and improving a mixing performance of cold air and warm air by enhancing a passage of the warm air. The air conditioning device for a vehicle includes: an air conditioning case having an indoor air inlet and an outdoor air inlet formed therein in a divided manner, and a plurality of air discharge ports formed therein; and an evaporator and a heater core sequentially provided in an air passage of the air conditioning case, wherein the air passage of the air conditioning case is formed of an indoor air passage through which air inside a vehicle chamber is suctioned and moves therein, and an outdoor air passage through which air outside the vehicle chamber is suctioned and moves therein, wherein an entire floor vent is configured to selectively communicate with the indoor air passage or the outdoor air passage.

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioner for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air conditioner for a vehicle, and more particularly, to an air conditioner for a two-tiered vehicle that can maintain a high heating performance while maintaining a defogging performance in heating.

2. Description of the Related Art Generally, a vehicle air conditioner is an apparatus for heating or cooling indoor air by introducing outside air into the room or circulating air in the room to cool or cool the room. The inside of the air conditioner case includes an evaporator for cooling action, A heater core, and the like. The air cooled or heated by the evaporator or the heater core is selectively blown to each part of the vehicle interior.

In particular, a two-layer air conditioning system has been developed to maintain high heating performance while ensuring defogging performance during heating. In the case of winter heating, cold and humid air is effective to remove the frost on the window, but the result is that the room temperature is lowered. The two-tiered air-conditioning system provides two-layer air flow inside and outside, which supplies the outside air to the upper part of the vehicle and the air to the lower part for de-gaming in heating, thereby effectively eliminating the casting by using fresh and low- At the same time, fresh air is provided to passengers, and warm air is supplied to the lower part to maintain high heating performance.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional two-layered vehicle air conditioning system. Referring to FIG. 1, a conventional two-tiered vehicle air conditioner 1 includes an air conditioner case 10. In the air conditioning case 10, a certain type of air passage is formed therein. Inside and outside air inflow ports 14a and 14b partitioned by a separation wall 14c are formed at the inlet side of the air passage, A discharge port is formed. The air outlet includes a defrost vent 16, a face vent 17, an all-over floor vent 18, and a bottom floor vent 19.

A blower unit 5 is provided at the inlet side of the air conditioning case 10 and the evaporator 2 and the heater core 3 are disposed inside the air conditioning case 10 at regular intervals from the inner and outer air inflow ports 14a, Is installed. A first TEMP door 11 and a second TEMP door 12 for selectively opening and closing the front air passage 10c and the upper air passage 10d of the heater core 3 are provided in front of the heater core 3, Respectively.

The rear end of the second tempdoor 12 is rotatably installed at a substantially central height of the heater core 3 to open and close the bottom of the heater core 3 from the center thereof and has a free end corresponding to the separation wall 14c And rotates to the approximately central portion of the evaporator 2 to separate the outside air. The rear end of the first tempdoor 11 is rotatably mounted on the upper end of the heater core 3, and its free end selectively opens and closes the upper and upper air passageways 10d.

The air outlet port is provided with a de-frost door 13a and a face door 13b for controlling the amount of air directed toward the defrost vent 16 and the face vent 17. A bypass door 13d is provided on the lower side of the floor door 13c and the partition wall 10b on the upper side of the partition wall 10b so as to control the amount of air directed to the front seat floor vent 18 and the back floor vent 19, .

The free end of the bypass door 13d rotates to the central portion of the heater core 3 in the two-tier flow mode so that outside air passing through the heater core 3 flows toward the defrost vent 16 and the face vent 17 And the vent flows to the side of the top floor vent 19 and the top floor vent 18 side.

The first TEMP door 11 closes the upper air passage 10d of the heater core 3 and the second TEMP door 12 rotates to the central part of the evaporator 2 at the free end thereof, The outside air flows into the evaporator 2 and the heater core 3 separately after the inside and outside air respectively flowing through the inside and outside air inflow ports 14a and 14b flows into the defrost vent 16 or the all- It is possible to maintain defogging performance while maintaining high heating performance.

2, the cool air having passed through the evaporator 2 and the warm air passing through the heater core 3 are mixed with each other in the mixing zone MZ (see FIG. 2) And is discharged to the air discharge port. However, since the discharge port of the all-over floor vent 18 is located in the mixing zone MZ or immediately after the rear end of the mixing zone MZ or directly below the mixing zone MZ, There is a problem that it is discharged to the entire floor floor vent 18 immediately. As a result, there is a problem that the mixing property of the cool air and the warm air is deteriorated, the temperature control property is disadvantageous and the passenger is uncomfortable.

Korean Patent No. 10-1179593 (Aug. 29, 2012)

In order to solve such conventional problems, the present invention provides an air conditioning system for a two-tiered vehicle in which two-tier flow control and three-zone control are possible, and the mixing performance of cool air and warm air is improved by improving the warm air flow path.

The air conditioning apparatus according to the present invention includes an air conditioning case in which a room air inlet and an outdoor air inlet are formed in a divided manner and a plurality of air discharge openings are formed, and an evaporator and a heater core sequentially provided in the air passage of the air conditioning case. The air passage includes an inside air passage through which air is sucked into the car room and an outside air passage through which the car outside air is sucked, and the all-over floor vent is selectively in communication with the inside air passage or outside air passage.

In the above, the front seat floor vent is formed on the side in the width direction of the air conditioning case.

In the above, the outside air passage comprises an all-purpose cooler passage for bypassing the heater core and an all-oven passage for passing through the heater core; And a warm bypass passage for allowing the warm air passing through the heater core to flow by bypassing the oven seat floor vent on the downstream side of the electric ostomy warming passage.

In the above-described warm-by-pass passage, there is provided a flow guide for guiding warmth, which has passed through the heater core, to the entirety of the floor vent, and for guiding warmth to a mixing zone where it is mixed with cold air bypassed from the heater core.

In the above, the flow path guide extends from the side to the inside in the width direction of the air conditioning case.

In the above, the flow guide extends along the periphery of the outlet port of the front seat floor, guides the air passing through the heater core to the mixing zone, and the outlet port of the front seat floor is positioned below the mixing zone.

In the above, a floor door is provided for controlling the opening degree of the front seat floor vent, and a communication hole for allowing the outside air passage and the inside air passage to communicate with each other and a second floor door for opening and closing the communication hole.

In the above, the flow guide has a cover portion covering the circumference of the overhead floor vent to partition the flow path connecting the communication hole and the front floor floor vent and the warm bypass path.

In this case, the outside air passage and the inside air passage are divided in the vertical direction by partition walls formed in the air conditioning case, the air discharge opening includes a top floor vent, the top floor vent is formed on the top of the partition, And is formed at the lower portion of the partition wall.

The partition may include a first partition wall positioned upstream of the evaporator, a second partition wall positioned between the evaporator and the heater core, and a third partition wall positioned downstream of the heater core; A second hole communicating the console vent with the back air passage; a third hole communicating with the back air passage and the back floor vent; Are sequentially formed; And a two-layer flow mode door for selectively opening and closing the first hole, the second hole and the third hole in the air conditioning case.

The air conditioner for a two-layered automobile according to the present invention improves the temperature control performance by increasing the mixing performance between cold and warm air, and effectively enables the temperature control of all seats and rear seats in a two-tiered three-zone type, .

1 is a cross-sectional view showing a conventional two-layered vehicle air conditioning system,
2 is a cross-sectional view of the air-conditioning apparatus for a two-tiered vehicle showing a mixing mode,
3 is a cross-sectional view of a two-tiered vehicle air conditioning system according to an embodiment of the present invention,
4 is a perspective view illustrating the interior of the air conditioning case of the air conditioner for a two-layered vehicle according to an embodiment of the present invention,
5 is a view showing a two-layer flow mode of the air conditioning system for a two-tiered vehicle according to an embodiment of the present invention,
6 is a view showing a vent mode of the air conditioner for a two-tiered vehicle according to an embodiment of the present invention,
FIG. 7 illustrates a 1/2 cool-by-level mode of the air-conditioning system for a two-tiered vehicle according to an embodiment of the present invention.

Hereinafter, the technical configuration of the air conditioner for a two-lane flow vehicle will be described in detail with reference to the accompanying drawings.

FIG. 3 is a cross-sectional view illustrating a two-tiered vehicle air conditioner according to an embodiment of the present invention, and FIG. 4 is a perspective view illustrating an inside of the air conditioner case of the air conditioner for a two-tiered vehicle according to one embodiment of the present invention.

3 and 4, a two-tiered vehicle air conditioning system 100 according to an embodiment of the present invention includes an air conditioning case 110, an evaporator 101 and a heater core 102, A door 121 and a second tem- perature door 122 are provided. The evaporator 101 and the heater core 102 are sequentially provided in the air passage of the air conditioning case 110. [

Air inflow inlet 111 and outside air inflow inlet 112 are divided and formed at the entrance side of air conditioning case 110, and a plurality of air outlets are formed at the outlet side. The air inflow port 111 and the outside air inflow port 112 are divided into two layers by a first partition wall 141 which will be described later and the inside air and the outside air blown from the air blowing unit are passed through the inside air inflow port 111 and the outside air inflow port 112, Lt; / RTI > The first partition wall portion 141 extends in the substantially horizontal direction of the air conditioner case 110 and extends in the height direction, that is, approximately 1/2 in the vertical direction. .

The air outlet comprises a defrost vent 113, a face vent 114, an all-over floor vent 115, a console vent 116, and a top floor vent 117. Each of the air outlets is connected to the respective portions of the vehicle interior, that is, the window pane direction, the upright seat upright direction, the upright downright direction, the upright upright direction, and the downright downright direction and ducts to discharge air.

The air conditioning case 110 is provided with a defrost door 123 for controlling the opening of the defrost vent 113, a vent door 124 for controlling the opening of the face vent 114, A floor door 125 is provided. The air conditioning case 110 is further provided with a two-layer flow mode door 126 for controlling the opening of the console vent 116 and the rear floor vent 117, which are the back side air discharge openings. The detailed configuration of the two-lane flow mode door 126 will be described later.

The air passage of the air conditioning case 110 is formed of an outside air passage and an inside air passage. The outside air passage and the inside air passage are divided in the vertical direction by partition walls formed in the air conditioning case 110. An all-over floor vent 115 is formed on the top of the partition, and a top floor vent 117 is formed on the bottom of the partition. The partition wall is preferably formed integrally with the air conditioning case 110.

The partition wall includes a first partition wall 141 positioned on the upstream side of the evaporator 101, a second partition wall 142 positioned between the evaporator 101 and the heater core 102, And a third partition wall portion 143 located on the downstream side of the second partition wall portion 143. The first partition wall portion 141 extends horizontally on the upstream side of the evaporator 101, that is, on the front end of the evaporator 101. The first partition wall portion 141 divides the inside air and the outside air blown from the air blowing unit into the evaporator 101 side and flows.

The second partition wall portion 142 extends in the horizontal direction between the evaporator 101 and the heater core 102 and may have various shapes other than the shapes shown in the drawings. The second partition wall portion 142 divides the air that has passed through the evaporator 101 into an outside air passage and an inside air passage so as to flow.

The third partition wall 143 is formed on the downstream side of the heater core 102, that is, the rear end of the heater core 102, and has an arc shape having a predetermined radius of curvature. A two-layer flow mode door 126, which will be described later, is slidably moved along the arc shape of the third partition wall 143. [ The third partition wall 143 functions to divide the outside air passage and the inside air passage from the downstream side of the heater core 102.

The outside air passage is composed of a pre-cool air passage 131 for bypassing the heater core 102 and an electric oven passageway 132 for passing through the heater core 102. The all-around cool air passage 131 is formed on the upper portion of the electric oven passageway 132. The first temper door 121 is slidably provided in the air conditioning case 110 to selectively open and close the all-stall cool air passage 131 and the oven-warming passage 132. The first temp door 121 can be driven by various structures such as a gear structure, a pivot structure, a link structure, and the like.

The inside air passage is composed of a chilled air passage 134 for bypassing the heater core 102 and a warming passage 133 passing through the heater core 102. A warming passageway 133 is formed in the upper portion of the choking passageway 134. The second tem- perature door 122 is slidably provided in the air conditioning case 110 to selectively open and close the upright cool air passage 134 and the uphill warming passage 133. [ The second temp door 122 may be driven by various structures such as a gear structure, a pivot structure, a link structure, and the like.

The entire floor floor vent 115 is formed on the side in the width direction of the air conditioner case 110. A warm bypass passage 135 is provided on the downstream side of the electric oven-warming passage 132 to allow the warmth that has passed through the heater core 102 to bypass the oven-floor floor vent 115 and to flow.

4 is a sectional view showing the inside of an air conditioning case in which an evaporator, a heater core, and various doors are separated. 4, reference numeral 1010 denotes an evaporator mounting portion, and reference numeral 1020 denotes a heater core mounting portion. The warmth bypass passage 135 is provided with a flow guide 150. The flow guide 150 blocks the heat that has passed through the heater core 102 from being discharged to the entire floor floor vent 115 and guides the warmth to the mixing zone 136. The mixing zone 136 is a space where the warmth that has passed through the heater core 102 is mixed with the cool air bypassed from the heater core 102.

The flow path guide 150 is formed to extend inward from the side surface in the width direction of the air conditioning case 110. The flow guide 150 extends along the circumference of the discharge port of the overhead floor vent 115 and guides the air that has passed through the heater core 102 to the mixing zone 136. The discharge port of the overbottom floor vent 115 is located at a lower portion of the mixing zone 136.

More specifically, the flow path guide 150 extends from the rear end of the heater core 102 toward the rear end of the air conditioning case 110 and extends in the upward direction, so that air passing through the heater core 102 flows upwardly, That is, an air passage for guiding to flow in the direction of the mixing zone 136 is formed. The warmth that has passed through the heater core 102 can not be directly discharged to the floor floor vent 115 but is guided to the mixing zone 136 side and mixed with the cool air bypassed from the heater core 102.

An upper end of the flow guide 150 extends to the mixing zone 136 and a floor vent connecting passage 151 formed by the upper end of the flow guide 150 is provided below the mixing zone 136. The floor door 125 is rotatably provided in the floor vent connecting passage 151 to open and close the floor vent connecting passage 151. The discharge port of the all-wheel floor vent 115 is formed in the lower portion of the floor vent connecting passage 151. The flow guide 150 covers the lower and the sides of the all-wheel floor vent 115 as shown in FIG. When the floor door 125 opens the floor vent connecting passage 151, the air passes through the floor vent connecting passage 151 and passes through the floor vent connecting passage 151, And is discharged through the floor vent 115.

In addition, the pre-existing floor vent 115 is formed to have a plurality of inlets. The all-over floor vent 115 is disposed in the outside air passage through which the outside air flows, and the upright floor vent 117 is disposed in the inside air passage through which the inside air flows. In the above, the number of the plurality of inflow ports of the all-wheel-house floor vent 115 is two. That is, in this embodiment, the plurality of inlets of the all-over floor vent 115 are the floor vent connecting passage 151 and a communication hole 140 described later.

The two-lane air conditioning system 100 includes a communication hole 140 and a double-layer exclusive door 127. The communication hole (140) allows the outside air passage and the inside air passage to communicate with each other. The communication hole 140 is formed in the third partition wall 143 to be described later. The second floor door 127 opens and closes the communication hole 140.

The second floor door 127 may have a sliding structure, and may be a rotary structure or other shapes. In the present embodiment, the second floor door 127 is disposed on the outside air passage with reference to the third partition wall 143, but it is also possible to arrange the second floor door 127 on the inside air passage.

In the two-laminar flow mode, one of the plurality of inlets communicates with the inside passage. That is, in the two-tier flow mode, the communication hole 140 is communicated with the inside air passage, and the inside air that flows through the inside air passage is eventually discharged through the communication hole 140 to the entire floor vent 115.

The flow path guide 150 includes a cover portion 155. The cover portion 155 separates the warm bypass passage 135 from the flow path on the side of the front seat floor vent 115. That is, the cover portion 155 divides the warm bypass passage 135 into a flow passage connecting the communication hole 140 and the overhead floor vent 115.

The air flowing through the air passage flows into the flow path connecting the communication hole 140 and the front seat floor vent 115 through the communication hole 140, and then discharged into the front seat floor vent 115. The outside air flowing through the outside air passage passes through the warming bypass passage 135 partitioned by the flow passage connecting the communication hole 140 and the entire floor floor vent 115 by the cover portion 155 to the floor vent connecting passage 151 To the entire floor floor vent 115.

The cover part 155 covers the entire circumference floor vent 115 to partition the flow path connecting the communication hole 140 and the entire floor floor vent 115 and the warm bypass path 135. [ That is, the cover part 155 is formed to extend from the flow path guide 150 to the third partition wall part 143 and cover the entire floor floor vent 115.

The third partition wall 143 is formed with a first hole 138 for communicating the outside air passage and the inside air passage. A two-layer flow mode door 126 for selectively opening and closing the first hole 138 is provided in the air conditioning case 110. The third partition 143 is formed with a second hole 137 for communicating the inner passage and the console vent 116 and a third hole 139 for communicating the inner passage and the back floor vent 117 with each other. do. That is, a communication hole 140, a first hole 138, a second hole 137, and a third hole 139 are sequentially formed in the third partition wall 143.

The two-layer flow mode door 126 is slidably disposed along the first hole 138, the second hole 137, and the third hole 139, and includes a first hole 138, a second hole 137, The third hole 139 is selectively opened and closed. The two-lane flow mode door 126 may be formed of an arc-shaped dome door having a predetermined radius of curvature.

The third hole 143 and the third hole 139 are formed in a circular arc shape having a predetermined radius of curvature as described above and the first hole 138, the second hole 137, Along the clockwise direction. The two-layer flow mode door 126 is extended to the communication hole 140 to open and close the communication hole 140 during the sliding operation. However, the two-layer flow mode door 126 must be closed to the communication hole 140 The communication hole 140 may be opened or closed only by the second floor door 127. [

A communication hole 1261 is formed in the two-layer flow mode door 126. The first hole 138 is formed to connect the outside air passage and the inside air passage, and the second hole 137 is formed at a substantially central portion in the width direction. A third hole 139 is formed on both side surfaces in the width direction. When the communication holes 1261 formed in the two-layer flow mode door 126 are located in the first hole 138, the second hole 137 and the third hole 139, the holes are opened. The bottom floor vent 117 is formed on both sides in the width direction of the air conditioner case 110.

Meanwhile, FIG. 5 shows a two-layer flow mode of the air conditioning system for a two-tiered vehicle according to an embodiment of the present invention.

Referring to FIG. 5, in the two-tiered flow mode, the first temp door 121 closes the pre-cool air passage 131 and the pre-oven warmer passage 132 is open. In addition, the second tem- perature door 122 closes the choking pass 134 and the choking pass 133 is open.

The air introduced through the outside air inlet 112 passes through the evaporator 101 and the heater core 102 and is then discharged through the warm bypass passage 135 to the all-steel floor vent 115. The air introduced through the air inflow port 111 passes through the evaporator 101 and the heater core 102 and is discharged through the communication hole 140 to the overhead floor vent 115. In this case, the second floor door 127 opens the communication hole 140.

FIG. 6 illustrates a vent mode of a three-zone control of a two-tiered vehicle air conditioning system according to an embodiment of the present invention.

Referring to FIG. 6, in the vent mode, the first temp door 121 closes the oven-warming passage 132 and the oven-circulating chiller passage 131 is open. In addition, the second temp door 122 closes the pavement warming passage 133 and the choking cold air passage 134 is open.

The air introduced through the outside air inlet 112 passes through the evaporator 101 and bypasses the heater core 102 to be discharged into the face vent 114. In this case, the defrost door 123 closes the defrost vent 113, the vent door 124 opens the face vent 114, and the floor door 125 closes the all-over floor vent 115 .

On the other hand, the air introduced through the air inflow port 111 passes through the evaporator 101, bypasses the heater core 102, and is discharged to the console vent 116. In this case, the second floor door 127 closes the communication hole 140, the two-layer flow mode door 126 closes the first hole 138 and the third hole 139, .

The air introduced through the outside air inlet port 112 is cooled by the evaporator 101 and the cold air is discharged into the face vent 114 of the front seats (driver's seat and assistant driver's seat) 101, and the cold air is discharged to the console vent 116 of the rear seats.

FIG. 7 shows a 1/2 cool-by-level mode of a three-zone control of a two-tiered vehicle air conditioning system according to an embodiment of the present invention.

Referring to FIG. 7, in the 1/2 cool-bi-level mode, the first tem- per door 121 opens both the pre-heater warm-up passageway 132 and the all-pass cool air passageway 131. [ In addition, the second temp door 122 opens both the post-warm passageway 133 and the chilled cold passageway 134.

The air introduced through the outside air inlet 112 passes through the evaporator 101 and partly bypasses the heater core 102 and the other part passes through the heater core 102 and then passes through the warm bypass passage 135 Cooling and warming are mixed in the mixing zone 136. Some of the mixed air is discharged to the face vent 114 and the other part is discharged to the all-over floor vent 115. In this case, the defrost door 123 closes the defrost vent 113, the vent door 124 opens the face vent 114, and the floor door 125 opens the all-over floor vent 115 .

On the other hand, the air introduced through the air inflow port 111 passes through the evaporator 101, a part bypasses the heater core 102, and the other part passes through the heater core 102, and then the cool air and the warm air are mixed. Some of the mixed air is discharged to the console vent 116 and the other part is discharged to the bottom floor vent 117. In this case, the second floor door 127 closes the communication hole 140, the two-layer flow mode door 126 closes the first hole 138, and the second hole 137 and the third hole 139 are closed, .

The air introduced through the outside air inlet 112 is mixed with the cooling air cooled by the evaporator 101 and the warmer passing through the heater core 102 to adjust the temperature and then the face vent 114 of the front seat (driver's seat and passenger's seat) And the air conditioning air is discharged through the entire floor floor vent 115. The air introduced through the inflow inlet 111 is mixed with the cold air cooled by the evaporator 101 and the warmer that has passed through the heater core 102 to adjust the temperature and then the pre-heated console vent 116 and the bottom floor vent 117).

Up to now, the air conditioner for a two-tiered vehicle according to the present invention has been described with reference to the embodiments shown in the drawings, but it is merely an example, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible . Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

100: Two-lane automotive air conditioning system
101: evaporator 102: heater core
110: air conditioning case 111: air inlet
112: outside air inlet 113: defrost vent
114: Pace Vents 115: All Floor Vents
116: Console Vents 117: Torsion Floor Vents
121: first temp door 122: second temp door
123: Defrost door 124: Vent door
125: Floor door 126: Two-lane flow mode door
127: second floor door
131: all-cold air passage 132:
133: hot stone warming passage 134:
135: warm bypass passage 136: mixing zone
138: first hole 137: second hole
139: third hole 140: communication hole
141: first partition wall portion 142: second partition wall portion
143: third partition wall portion 150: flow guide
155:

Claims (10)

An evaporator 101 and a heater core 101 which are sequentially provided in an air passage of the air conditioner case 110. The air conditioner case 110 includes an air inlet 110 and a plurality of air outlet openings 111, 102), comprising:
The air passage of the air conditioning case (110) is constituted of an inside air passage through which air in the car is sucked and flows and an outside air passage through which the car outside air is sucked,
Wherein the entire floor floor vent (115) is selectively in communication with the inside air passage or outside air passage. The method according to claim 1,
Wherein the floor floor ventilation ventilator (115) is formed on a lateral side of the air conditioning case (110). 3. The method of claim 2,
The outside air passage includes an all-purpose cool air passage 131 for bypassing the heater core 102 and an electric oven passageway 132 for passing through the heater core 102;
And a warmth bypass passage (135) for allowing the warmth that has passed through the heater core (102) to flow by bypassing the oven seat floor vent (115) on the downstream side of the electric ostomy warming passage (132) . The method of claim 3,
The heating bypass passage 135 is provided with a mixing zone (not shown) in which the warmth that has passed through the heater core 102 is blocked from being discharged to the entire floor floor vent 115 and the warmth is mixed with the cool air bypassed from the heater core 102 136) for guiding air to the vehicle. 5. The method of claim 4,
Wherein the airflow guide (150) extends inwardly from a side in a width direction of the air conditioning case (110). 5. The method of claim 4,
The flow guide 150 extends along the periphery of the outlet port of the front seat floor vent 115 and guides the air that has passed through the heater core 102 upward to the mixing zone 136, Is located below the mixing zone (136). 5. The method of claim 4,
And a floor door (125) for adjusting the opening degree of the all-over floor vent (115)
And a second floor door (127) for opening and closing the communication hole (140). The vehicle air conditioner according to claim 1, wherein the air conditioner further comprises: 8. The method of claim 7,
The flow guide 150 includes a cover 155 covering the periphery of the overhead floor vent 115 to partition the flow path connecting the communication hole 140 and the overhead floor vent 115 and the warm bypass path 135, And a control unit for controlling the air conditioner. 8. The method of claim 7,
The outside air passage and the inside air passage are divided in the vertical direction by partition walls formed in the air conditioning case 110. The air discharge opening includes a standing floor vent 117, And the bottom floor vent (117) is formed at a lower portion of the partition wall. 10. The method of claim 9,
The partition wall includes a first partition wall 141 positioned on the upstream side of the evaporator 101, a second partition wall 142 positioned between the evaporator 101 and the heater core 102, And a third partition wall portion 143 located on the downstream side of the first partition wall portion 143;
The third partition 143 is provided with a communication hole 140, a first hole 138 for communicating the oval seat air passage and the back seat air passage, a second hole 137 for communicating the back seat air passage and the console vent 116, ), And a third hole (139) for communicating the overturning air passage and the upright floor vent (117) are formed in sequence;
And a two-layer flow mode door (126) for selectively opening and closing the first hole (138), the second hole (137) and the third hole (139) is provided in the air conditioning case (110) .

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