KR20180001618A - Two layer type air conditioner for vehicle and method for controlling the same - Google Patents

Abstract

The present invention relates to a two layer-type air conditioner for a vehicle with a means to fluidly control the wind volume ratio between internal air and external air, and a control method thereof. According to the present invention, the two layer-type air conditioner for the vehicle comprises: an air conditioning case which includes: an internal air inlet; an external air inlet; and a plurality of air outlets; an evaporator and a heater core successively placed on an air passage of the air conditioning case; and a temp door placed in between the evaporator and the heater core to control the temperature of discharged air. The air passage of the air conditioning case includes an external air passage wherein air introduced through the internal air inlet flows; and an internal air passage wherein air introduced through the external air inlet flows. The air conditioner comprises an auxiliary door to selectively make the external air passage and the internal air passage selectively communicate, thereby guiding air.

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioner and a control method thereof,

The present invention relates to a two-tiered vehicle air conditioning system and a control method thereof, and more particularly, to a two-tiered air conditioning system and control method thereof, which can maintain a high heating performance while securing 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.

Since the conventional air conditioner for a two-layered automobile air conditioner has a fixed air conditioner (air volume ratio between the indoor air and the outdoor air) between the air passage 14a and the outdoor air inlet 14b, There has been a problem that it is impossible to change the windshield.

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

To solve such a conventional problem, there is provided a two-tiered air conditioner for a vehicle having a means for fluidically adjusting the air volume ratio between an inside air and an outside air and a control method thereof.

The air conditioner for a two-layered vehicle according to the present invention includes a blower unit for sucking air into the air conditioning case, an air passage through which air in the car sucked by the air blower flows and an outside air passage through which the car outside air flows, A partition wall dividing the air passage and the outside air passage within the partition wall; A cooling heat exchanger disposed in the inside air passage and the outside air passage for cooling respective air passing through the inside and outside air passage, and a heating heat exchanger for heating; And an auxiliary door for selectively communicating the inside air passage and the outside air passage to guide the air.

In the above, the auxiliary door is provided between the cooling heat exchanger and the heating heat exchanger to selectively perform the partition function and the guide function.

In the above, the auxiliary door serves as a partition for partitioning the outside air passage and the inside air passage in the two-tier flow mode, and guides the air passage part to the outside air passage side in the case of not the two-tier flow mode.

The apparatus may further include a tempdoor disposed between the cooling heat exchanger and the heating heat exchanger for distributing an amount of air passing through the heating heat exchanger and an amount of air to be bypassed to regulate a temperature of air supplied to the inside of the car, And is interlocked with the tempo door.

In the above, the auxiliary door functions as a partition wall partitioning the air passage and the outside air passage when the tempdoor closes the passage bypassing the heat exchanger for heating.

In the above, the auxiliary door and the first door are connected by a plurality of joint links.

In this case, the auxiliary door has a flat structure rotated around the first rotation axis, and the first tem- perature door has a dome structure.

A first link rotatably connected to the air conditioning case on a second rotation axis and one end rotatably connected to the first TEMP door; And a second link having one side rotatably connected to the first link and the other side rotatably connected to the auxiliary door.

The control method for a two-tiered vehicle air conditioning system according to the present invention determines whether or not it is a two-tiered flow mode; In the two-lane flow mode, the auxiliary door serves as a partition for partitioning the outside air passage into which the outside air flows and the inside air passage into which the inside air flows, by driving the auxiliary door; When the mode is not the two-laminar flow mode, the auxiliary door acts as a flow path guide for guiding part of the inside air flowing into the inside air passage into the outside air passage by driving the auxiliary door.

The air conditioner for a two-layered vehicle according to the present invention and its control method can flexibly adjust the air volume ratio between the indoor and the outdoor air and reduce the number of actuators and driving parts by interlocking the tempdoor and the auxiliary door, .

1 is a cross-sectional view showing a conventional two-layered vehicle air conditioning system,
2 is a cross-sectional view of a two-tiered vehicle air conditioning system according to an embodiment of the present invention,
3 is a perspective view illustrating a first temper door and an auxiliary door of the air conditioner for a two-tiered vehicle according to an embodiment of the present invention,
4 and 5 are enlarged sectional views of a first temper door and an auxiliary door of an air conditioner for a two-tiered vehicle according to an embodiment of the present invention,
FIG. 6 is a flowchart illustrating a method of controlling an air conditioner for a two-tiered vehicle according to an embodiment of the present invention,
FIG. 7 illustrates a maximum cooling vent mode of a two-tiered vehicle air conditioning system according to an embodiment of the present invention,
8 shows a two-layer flow floor 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-tiered vehicle and its control method will be described in detail with reference to the accompanying drawings.

3 is a perspective view illustrating a first tem- perature door and an auxiliary door of an air conditioner for a two-layered automotive vehicle according to an embodiment of the present invention; Fig. 2 is a cross-sectional view of the air- And FIGS. 4 and 5 are enlarged sectional views of a first temper door and an auxiliary door of an air conditioner for a two-tiered vehicle according to an embodiment of the present invention.

2 to 5, 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 as a cooling heat exchanger, and a heater core as a heating heat exchanger (102), and tempo doors (121, 122). The evaporator 101 and the heater core 102 are sequentially provided in the air passage of the air conditioning case 110. [ The tempo doors 121 and 122 are provided between the evaporator 101 and the heater core 102 to regulate the temperature of the discharged air. The tempo doors 121 and 122 include a first tem- perature door 121 for regulating the temperature of the discharged air of the outside air passage and a second tem- perature door 122 for regulating the temperature of the discharged air of the internal air passage.

The vehicle air conditioner 100 has an air blowing device that sucks air into the air conditioning case 110, an air passage through which air in the car sucked by the air blowing device flows, and an outside air passage through which the car outside air flows, 110 partition the air passage and the outside air passage. An evaporator 101, which is a cooling heat exchanger disposed in the air passage and the outside air passage for cooling the air passing through the inside and outside air passages, and a heater core 102 as a heating heat exchanger for heating.

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 indoor air inlet 111 and the outdoor air inlet 112 are divided into two layers by a partition wall 141 which will be described later, and the indoor air and the outdoor air blown from the air blowing unit pass through the indoor air inlet 111 and the outdoor air inlet 112 Lt; / RTI > The outside air inlet 112 is located at an upper portion of the inside air inlet 111. The partition wall 141 extends in a substantially horizontal direction of the air conditioner case 110 and is disposed at a substantially 1/2 position in a height 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 and a vent door 124 for controlling the opening of the face vent 114. The air conditioning case 110 is provided with a two-layer flow mode door 126 for controlling the opening degree of the console vent 116 and the bottom floor vent 117 as the rear side air outlet. And a floor door 125 for controlling the door.

The air passage of the air conditioning case 110 includes an air passage through which the air introduced through the air inlet 111 flows and an air passage through which the air introduced through the air inlet 112 flows. The outside air passage and the inside air passage are divided in the vertical direction by partition walls (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 outside air passage is disposed on the upper portion of the inside air passage.

The partition wall is composed of a partition wall portion 141 located on the upstream side of the evaporator 101 and another partition wall portion located on the downstream side of the heater core 102. The partition wall portion 141 extends horizontally at the front end of the evaporator 101. The 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 partition wall portion located on the downstream side of the heater core 102 is formed in an arc shape so that the two-layer flow mode door 126 slides and divides 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 an all-around 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 air passage includes 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. In addition, 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 flow by bypassing the oven seat floor vent (115). The warm bypass passage 135 is provided with a flow guide. The flow guide interrupts the discharge of the warmth passing through the heater core 102 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 extends from the side to the inside in the width direction of the air conditioning case 110 and extends along the circumference of the outlet port of the all-over floor floor vent 115. The air guide passes through the mixing zone 136, . More specifically, the flow path guide 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 in the direction of the mixing zone 136 Thereby forming an air passage. 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.

The upper end of the flow guide extends to the mixing zone 136 and a floor vent connecting passage 151 formed by the upper end of the flow guide is provided below the mixing zone 136. A discharge port of the all-wheel floor vent 115 is formed at a lower portion of the floor vent connecting passage 151, and the flow guide covers the lower and the sides of the full-floor floor vent 115. The flow guide has 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 part 155 divides the warm bypass passage 135 into a flow path connecting the entire-floor floor flow path 140 and the entire floor floor vent 115.

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 present embodiment, the plurality of inlets of the all-over floor vent 115 are the floor vent connecting passage 151 and the all-over floor flow passage 140 to be described later. The air conditioning case 110 is provided with a floor door 125 for selectively opening and closing the floor vent connecting passage 151 and the oven floor flow passage 140. The floor door 125 has a cylindrical shape and is rotatably provided in the air conditioning case 110 to selectively open and close the floor vent connecting passage 151 and the oven floor flow passage 140.

The air conditioning case 110 is provided with a two-layer flow mode door 126 for controlling the opening of the air passage. The outside air passage and the inside air passage are selectively communicated in accordance with sliding of the two-lane flow mode door (126). A defrost vent 113, a face vent 114 and an all-over floor vent 115 are formed in the outside air passage, and a console vent 116 and a bottom floor vent 117 are formed in the air passage. The air conditioning case 110 is provided with an oven floor flow passage 140 for communicating the entire floor floor vent 115 and the inside air passage, an upper side defroction passage 138 for communicating the defrost vent 113 and the inside air passage, And a bottom floor flow path 139 communicating the front floor vent 117 and the inside air passage are formed. The two-laminar flow mode door 126 is formed with an opening 1261 communicating with at least one of the oven floor flow path 140, the upper defrost flow path 138, the console flow path 137, and the oven floor flow path 139. The entire floor flow path 140, the upper side deep flow path 138, the console flow path 137 and the back floor flow path 139 are sequentially arranged in the sliding direction of the two-layer flow mode door 126.

The indoor air flowing through the indoor passage flows into a flow path connecting the entire-floor floor flow path 140 and the front floor floor vent 115 through the full-floor floor flow path 140, and is then discharged to the full floor floor vent 115. The outside air flowing through the outside air path is passed through a flow path connecting the oven-front floor flow path 140 and the oven floor floor vent 115 by the cover part 155 and the floor vent connecting path 151 to the entire floor floor vent 115. The cover portion 155 covers the entire circumference floor vent 115 to partition the flow path connecting the entire-floor floor flow path 140 and the front floor floor vent 115 and the warm bypass path 135. That is, the cover portion 155 is formed to extend from the flow path guide 150 to the third partition wall, and covers the entire floor floor vent 115.

In addition, an auxiliary door 200 is provided in the air conditioning case 110. The auxiliary door (200) selectively communicates the outside air passage and the inside air passage to guide the air. That is, the auxiliary door 200 is provided between the evaporator 101 and the heater core 102 to selectively perform the partition function and the guide function. The auxiliary door 200 is rotatably installed in the air conditioning case 110. When the auxiliary door 200 rotates at a predetermined angle in one direction, it functions as a partition dividing the air passage by itself, As a guiding means.

More specifically, the auxiliary door 200 functions as a partition dividing the outside air passage and the inside air passage in the two-tier flow mode, and when not in the two-tier flow mode, guides the air portion of the inside passage to the outside air passage side. In addition, the auxiliary door 200 functions as a partition wall for partitioning the air passage and the outside air passage when the tempdoor closes the passage bypassing the heat exchanger for heating. This will be described in detail later.

The auxiliary door 200 is interlocked with the first temp door 121. The auxiliary door 200 and the first TEMP door 121 are connected by a plurality of joint links. The auxiliary door 200 has a flat structure rotated about the first rotation shaft 210. In addition, the first temp door 121 has a dome structure having a predetermined radius of curvature. The first temper door 121 is slidably connected to the air conditioning case 110 on both sides in the width direction.

Referring to FIGS. 3 to 5, the plurality of articulated links includes a first link 230 and a second link 220. One side of the first link 230 is rotatably connected to the air conditioning case 110 around the second rotation shaft 240 and the other side of the first link 230 is rotatably connected to the first temp door 121. In addition, the second link 220 is rotatably connected to the first link 230 at one side and rotatably connected to the auxiliary door 200 at the other side.

More specifically, the auxiliary door 200 is rotatably connected to the air conditioning case 110 around the first rotation axis 210, and the flat plate members are extended from both sides of the first rotation axis 210 in the radial direction Structure. The flat plate member of the auxiliary door 200 serves as a partition defining the outside air passage and the inside air passage or as a flow guide for guiding a part of the inside air introduced through the inside air inflow opening 111 to the upper side, .

The auxiliary door 200 and the first temp door 121 are connected to each other through a plurality of joint links and the joint link module is connected to the auxiliary door 200 and the first temp door 121 A pair is provided on both sides. The joint link module is composed of a first link 230 and a second link 220. The first link 230 is rotatably connected to the air conditioning case 110 around the second rotation shaft 240 and the other end of the first link 230 is connected to the first TEMP door 121 through the first joint 214 And is rotatably connected. The center of the first link 230 is foldable through the second joint 213. The second link 220 is rotatably connected to the first link 220 through the third joint 212 and the other is rotatably connected to the auxiliary door 200 through the fourth joint 211. [ Lt; / RTI > The second rotary shaft 240 may be a driving shaft connected to the actuator, which is a power source.

The operation of the joint link and the auxiliary door 200 when the first temp door 121 moves from the state of FIG. 4 to the state of FIG. 5 will be described. The first rotation shaft 210 and the second rotation shaft 240 are rotatably connected to the air conditioning case 110 and are not moved. The first and second joints 214 and 213, And the fourth joint 211 are freely movable. The first link 230 is rotated in the clockwise direction about the second rotation shaft 240 and is folded around the second joint 213. In this case, the auxiliary door 200 connected to the first link 230 through the second link 220 is rotated clockwise about the first rotation axis 210.

When the auxiliary door 200 is rotated clockwise as shown in FIG. 5, the auxiliary door 200 is inclined upwards from the lower part to the upper part, and the outside air passage and the inside air passage communicate with each other. Part of the air introduced through the air inlet port 111 flows to the air passage side while the other part is guided by the auxiliary door 200 and flows upward, that is, toward the outside air passage side.

FIG. 6 is a flowchart illustrating a method of controlling a two-tiered vehicle air conditioning system according to an embodiment of the present invention.

Referring to FIG. 6, the control method for a two-tiered vehicle air conditioner according to an embodiment of the present invention first determines whether the current air conditioning mode is a two-tiered current mode. In the case of the two-layer mode, the auxiliary door 200 is driven so that the auxiliary door 200 functions as a partition dividing the outside air passage into which the outside air flows and the inside air passage into which the inside air flows. If the mode is not the two-tiered flow mode, the auxiliary door 200 is operated to act as a flow guide for guiding part of the inside air flowing into the inside air passage into the outside air passage.

The control unit determines whether the current air conditioning mode is an entry step into a two-tiered flow mode or a two-tiered flow mode, and the controller determines whether the current air conditioning mode is a passenger control mode through operation result information of a passenger mode operation, It is possible to judge whether the condition of the mode is met or not. The control unit may determine whether the two-layer flow mode is selected, and then may control the operation of the auxiliary door 200 by applying a driving signal to the actuator according to the determination result.

FIG. 7 illustrates a maximum cooling vent mode of a two-tiered vehicle air conditioner according to an embodiment of the present invention.

Referring to FIG. 7, in the maximum cooling vent mode, the first temp door 121 closes the oven-warming passageway 132 and the all-cooler passageway 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 floor vent connecting passage 151 do.

On the other hand, the air introduced through the air inflow port 111 passes through the evaporator 101, a part of the air is guided by the auxiliary door 200, flows to the outside air passage side and is discharged to the face vent 114, The air is discharged to the console vent 116 by bypassing the heater core 102 to the inside passage side. In this case, the two-layer flow mode door 126 is positioned such that the opening portion 1261 is superimposed on the console flow path 137, and the two-layer flow mode flow path 140, the top side deep flow path 138, And only the console channel 137 is opened.

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 a part of the cooling air is discharged to the face vent 114 of the front seat (driver's seat and assistant driver's seat) while the rest is discharged to the console vent 116 of the back seat.

As described above, in the case of the air conditioning mode other than the two-tier flow mode, the auxiliary door 200 functions as a flow guide for guiding the inside air upward.

8 shows a two-layer flow floor mode of the air conditioning system for a two-tiered vehicle according to an embodiment of the present invention.

Referring to Fig. 8, in the two-tiered flow floor mode, the first tem- per door 121 closes the pre-cool air passage 131 and the pre-oven 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 to the defrost vent 113 through the warm bypass passage 135. In this case, the defrost door 123 opens the defrost vent 113, the vent door 124 closes the face vent 114, and the floor door 125 closes the floor vent connecting passage 151 do.

The air introduced through the air inflow port 111 passes through the evaporator 101 and the heater core 102 and then some air is discharged through the air conditioning floor flow path 140 into the air conditioning floor vent 115, Some of the air is discharged to the top floor vent 117. In this case, the two-layer flow mode door 126 is positioned such that the opening portion 1261 is superimposed on the upright floor flow path 139 to close the upper side deep flow path 138 and the console flow path 137, (Not shown). In addition, since the two-layer flow mode door 126 does not close the all-steel floor flow path 140 and the floor door 125 does not close the all-steel floor flow path 140, 115).

The air introduced through the outside air inflow port 112 is heated by the heater core 102 to discharge warm air into the defrost vent 113 of the all seats (driver's and passenger's seat) And is heated by the heater core 102 to discharge warm air into the overhead floor vent 115 and the overhead floor vent 117.

As described above, in the case of the two-tier flow mode, the auxiliary door 200 serves as a partition wall separating the inside air and the outside air.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. I will understand the point. 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
1261: opening
131: all-cold air passage 132:
133: hot stone warming passage 134:
135: warm bypass passage 136: mixing zone
137: Console channel 138: Upper dipped channel
139: Flooring flooring Euro 140: Flooring flooring all the way
141: partition wall portion 151: floor vent connecting passage
155: cover part 200: auxiliary door
210: first rotating shaft 220: second link
230: first link 240: second rotation axis

Claims (9)

The air conditioner according to claim 1, further comprising: an air blowing device for sucking air into the air conditioning case (110); an inside air passage through which the air in the car sucked by the air blowing device flows and an outside air passage through which the outside air flows; And a partition wall dividing the outside air passage;
A cooling heat exchanger disposed in the inside air passage and the outside air passage for cooling respective air passing through the inside and outside air passage, and a heating heat exchanger for heating;
And an auxiliary door (200) for selectively communicating the inside air passage and the outside air passage to guide the air. The method according to claim 1,
Wherein the auxiliary door (200) is provided between the cooling heat exchanger and the heating heat exchanger to selectively perform the function of the partition and the function of the guide. 3. The method of claim 2,
Wherein the auxiliary door (200) acts as a partition for partitioning the outside air passage and the inside air passage in the two-tiered flow mode, and guides the part of the air passage of the inside passage to the outside air passage side in the case of not the two-tiered flow mode. The method according to claim 1,
And a temperature door (121, 122) disposed between the cooling heat exchanger and the heating heat exchanger for distributing an amount of air passing through the heating heat exchanger and an amount of air to be bypassed,
Wherein the auxiliary door (200) is interlockingly driven with the tempo doors (121, 122). 5. The method of claim 4,
Wherein the auxiliary door (200) functions as a partition wall that defines an inner passage and an outer passage when the throttle door closes a passage bypassing the heat exchanger for heating. 5. The method of claim 4,
Wherein the auxiliary door (200) and the first TEMP door (121) are connected by a plurality of joint links. The method according to claim 6,
Wherein the auxiliary door (200) has a flat structure rotated about the first rotation axis (210), and the first TEMP door (121) has a dome structure. The method according to claim 6,
A first link 230 rotatably connected to the air conditioning case 110 on the second rotation shaft 240 at one side and rotatably connected to the first temp door 121 at the other side; And
And a second link (220) rotatably connected to the first link (230) at one side and rotatably connected to the auxiliary door (200) at the other side. Determining whether the two-laminar flow mode is present;
In the case of the two-lane flow mode, the auxiliary door 200 functions as a partition for partitioning the outside air passage into which the outside air flows and the inside air passage into which the inside air flows, by driving the auxiliary door 200;
Wherein the auxiliary door (200) operates as a flow guide for guiding part of the inside air flowing into the inside air passage into the outside air passage by driving the auxiliary door (200) / RTI >

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