KR20210044979A - Air conditioner for vehicle - Google Patents

Abstract

Disclose is a vehicle air conditioner having a back seat outlet, which can resolve a high and low temperature reversal phenomenon in which a discharge temperature of a console vent is controlled to be higher than a discharge temperature of a back seat floor vent in a bi-level mode, and prevent reduction in the air volume of the console vent in a cooling mode. The vehicle air conditioner having a back seat outlet comprises: an air conditioning case in which an air flow path is formed and which has a plurality of air discharge ports; and a cooling heat exchanger and a heating heat exchanger which are provided in the air flow path of the air conditioning case to exchange heat with air passing therethrough. Moreover, the air discharge ports have the console vent and the back seat floor vent, and an inlet of the back seat floor vent is formed on an upper side compared to an inlet of the console vent.

Description

Vehicle air conditioner with rear seat discharge port {AIR CONDITIONER FOR VEHICLE}

The present invention relates to an air conditioner for a vehicle, and more particularly, to an air conditioner for a vehicle having a rear seat discharge port configured to individually control the front seat air conditioner and the rear seat air conditioner.

In general, vehicle air conditioners are interior products installed for the purpose of cooling or heating the interior of a vehicle in summer or winter, or removing frost that may be trapped on the windshield in rainy or winter seasons, so that the driver can secure the front and rear view. to be. An air conditioner is usually equipped with a heating system and a cooling system at the same time, and then selectively introduces outside air or inside air, heats or cools the air, and then blows it into the vehicle interior to cool, heat or ventilate the interior of the vehicle.

Korean Patent Publication No. 1484718 (2015.01.14), previously applied, discloses an air conditioner for a vehicle that controls the rear seat air volume by controlling the positions of the rear seat temp door, the rear auxiliary temp door, and the rear seat on-off door. 1 is a cross-sectional view showing a conventional vehicle air conditioner. As shown in FIG. 1, the vehicle air conditioning apparatus includes an air conditioning case 10, an evaporator 20 and a heater core 30, a temp door 51 for all seats, and a mode door for all seats.

The air conditioning case 10 has an air inlet 11 and an air discharge port, and an air passage is formed therein. A blower is connected to the air inlet 11 so that internal or external air is selectively introduced into the air passage inside the air conditioning case 10. The air outlet is composed of a defrost vent 12, a front seat face vent 13, a front seat floor vent 114, a rear face vent 15, and a rear seat floor vent 16. The air passage inside the air conditioning case 10 is composed of a cold air passage for the front seat (P1), a hot air passage (P2), and a cold air passage for the rear seat (P3).

The evaporator 20 is a cooling heat exchanger and cools the air passing through it. The heater core 30 is a heat exchanger for heating and heats the air passing through it. The heater core 30 is disposed in the hot air passage P2 which is the downstream side of the evaporator 20 in the air flow direction. An electric heat heater 40 such as a PTC heater may be further provided in the hot air passage P2. The front seat temp door 51 is disposed between the evaporator 20 and the heater core 30 to bypass the hot air passage P2 passing through the heater core 30 and the cooling air passage P1 ( Adjust the opening degree of P3). All seat mode doors are composed of a defrost door 53, a vent door 54, and a floor door 55.

The rear seat air passage is composed of a rear seat cold air passage P3 through which air passing through the evaporator 20 bypasses the heater core 30 and a hot air passage through the heater core 30. The warm air passage of the rear seat air passage is used together with the warm air passage (P2) of the front seat air passage. That is, part of the air flowing through the hot air passage P2 passing through the heater core 30 moves upward and is discharged to at least one of the defrost vent 12, the front seat face vent 13, and the front seat floor vent 14. The other part of the air moves downward and is discharged to at least one of the console vent 15 and the rear seat floor vent 16. The rear seat air passage is provided with a rear seat mode door 58 for adjusting the opening degree of the console vent 15 and the rear seat floor vent 16.

In the air conditioning case 10, a rear seat temp door 52, a rear seat auxiliary temp door 56, and a rear seat on-off door 57 are provided. The rear seat temp door 52 is provided between the evaporator 20 and the heater core 30 and controls the opening of the passage flowing to the hot air passage P2 and the cold air passage P3 in the rear seat. The door 56 is disposed on the downstream side of the heater core 30 in the air flow direction to adjust the opening degree of the passage flowing to the rear air discharge port. The rear seat on-off door 57 adjusts the opening degree of the rear seat cold air passage P3.

2 shows a front and rear seat cooling mode of a conventional vehicle air conditioner. Referring to Figure 2, in the front and rear seat cooling mode, the front seat temp door 51 closes the hot air passage P2 and opens the front seat cold air passage P1, and the rear seat temp door 52 opens the warm air passage P2. Closed and open the rear seat cold air passage (P3). The rear seat auxiliary temp door 56 closes the passage flowing to the rear seat air discharge port, and the rear seat on-off door 57 opens the rear seat cold air passage P3. The air cooled while passing through the evaporator 20 bypasses the heater core 30 and is partially discharged to at least one of the front seat air outlets through the front seat cold air passage (P1), and the other part passes through the rear seat cold air passage (P3). It is discharged through at least one of the rear air outlets.

3 shows a front and rear seat heating mode of a conventional vehicle air conditioner. Referring to Figure 3, in the front and rear seat heating mode, the front seat temp door 51 closes the front seat cold air passage (P1) and opens the hot air passage (P2), and the rear seat temp door 52 is the rear seat cold air passage (P3). And open the hot air passage (P2). The rear seat auxiliary temp door 56 opens the passage flowing to the rear seat air discharge port, and the rear seat on-off door 57 closes the rear seat cold air passage P3. After the air passing through the evaporator 20 is heated while passing through the heater core 30, some of it moves upward and is discharged through at least one of the front seat air outlets, and the other part moves downward and is discharged through at least one of the rear seat air outlets. .

In the structure of the rear seat discharge port of a conventional vehicle air conditioner, a hot air passage is formed on the upper side and a cold air passage is located on the lower side. In addition, the console vent is located on the upper side and the rear seat floor vent is located on the lower side.

Due to this, as the hot air passage and the console vent discharge passage are close and the cold air passage and the rear seat floor vent discharge passage are located close together, the upper and lower temperature reversal is controlled in which the discharge temperature of the console vent is higher than the discharge temperature of the rear seat floor vent in the bi-level mode. A phenomenon occurs. In addition, since the console vent discharge passage is separated from the cooling air passage, there is a problem in that the air volume decreases due to high ventilation resistance of the console vent side passage in the cooling mode.

Patent Document: Korean Registered Patent Publication No. 1484718 (2015.01.14)

In order to solve such a conventional problem, in the present invention, in the bi-level mode, the discharge temperature of the console vent is controlled higher than the discharge temperature of the rear seat floor vent. It provides a vehicle air conditioner having a rear seat discharge port capable of.

An air conditioning apparatus for a vehicle having a rear seat discharge port according to the present invention includes an air conditioning case having an air passage formed therein and having a plurality of air discharge ports, a cooling heat exchanger provided in the air passage of the air conditioning case to exchange heat with air passing therethrough, and It includes a heat exchanger for heating, the air discharge port has a console vent and a rear seat floor vent, and the inlet of the rear seat floor vent is formed above the inlet of the console vent.

In the above, the console vent discharge passage is formed on the lower side so as to be connected to the cold air passage, and the rear seat floor vent discharge passage is formed on the upper side to connect with the warm air passage.

In the above, the rear seat floor vents are formed on both sides of the air conditioning case in the width direction, and the console vents are formed between a pair of rear seat floor vents in the width direction.

In the above, the warm air of the warm air passage moves downward through the side of the back seat floor vent passage and is discharged through the lower back seat floor vent discharge port.

In the above, a console vent and a rear seat mode door for adjusting an opening degree of the rear seat floor vent are provided, and the rear seat mode door has a dome shape with both sides blocked in the width direction.

In the above, both sides of the rear seat mode door block the entrance of the rear seat floor vent in the width direction to block air discharged to the rear seat floor vent, and the dome surface blocks the entrance of the console vent to block air discharged to the console vent.

In the above, the air flow path of the air conditioning case is a hot air flow path formed so that air passing through the cooling heat exchanger passes through the heating heat exchanger, and the air passing through the cooling heat exchanger bypasses the heating heat exchanger and is discharged to the front seats of the vehicle. The front seat cold air passage and the air passing through the cooling heat exchanger bypass the heating heat exchanger and are provided with a rear seat cold air passage formed to be discharged to the rear seat of the vehicle, and the front seat cold air passage, the hot air passage and the rear seat cold air passage sequentially from the upper side to the lower side. It has a formed rear seat discharge port.

In the above, the front seat temp door for adjusting the opening degree between the front cold air passage and a part of the hot air passage, and a first rear seat temp door disposed between the cooling heat exchanger and the heating heat exchanger and adjusting the opening degree of another part of the warm air passage, and It is disposed downstream of the heat exchanger for heating and has a rear seat discharge port including a second rear seat temp door for adjusting an opening between the hot air passage and the rear seat cold air passage.

In the above, a hot channel part is provided downstream of the heating heat exchanger to guide air passing through the heating heat exchanger to the console vent.

In the above, the hot channel unit connects the hot air passage and the inlet of the console vent.

In the above, the hot channel portion has a tubular shape with both sides open, one side opening toward the hot air passage and the other side opening toward the console vent.

In the above, the opening on the other side of the hot channel part is formed below the inlet of the rear seat floor vent.

In the above, a rear seat mode door for adjusting the opening degree of the console vent and the rear seat floor vent is provided, and the rear seat mode door has a dome shape with both sides blocked in the width direction, and the other opening of the hot channel part is a rear seat mode. It faces inside the dome of the door.

In the above, the rear seat floor vents are formed on both sides of the air conditioning case in the width direction, and the hot channel portion is formed between the pair of rear seat floor vents in the width direction.

The air conditioner for a vehicle having a rear seat discharge port according to the present invention eliminates the vertical temperature reversal phenomenon in which the discharge temperature of the console vent is controlled higher than the discharge temperature of the rear seat floor vent in the bi-level mode, and prevents a decrease in the air volume of the console vent in the cooling mode. It is a useful invention that not only improves cooling performance, but also improves heating performance.

1 is a cross-sectional view showing a conventional vehicle air conditioner,
2 shows a front and rear seat cooling mode of a conventional vehicle air conditioner,
3 shows a front and rear seat heating mode of a conventional vehicle air conditioner,
4 is a cross-sectional view showing an air conditioning apparatus for a vehicle according to an embodiment of the present invention,
5 is a diagram illustrating a position of a rear seat mode door in a vent mode according to an embodiment of the present invention,
6 is a front view of an air conditioning case showing air flow in a vent mode according to an embodiment of the present invention,
7 is a diagram illustrating a position of a rear seat mode door in a bi-level mode according to an embodiment of the present invention,
8 is a front view of an air conditioning case showing air flow in a bi-level mode according to an embodiment of the present invention,
9 is a diagram illustrating a position of a rear seat mode door in a floor mode according to an embodiment of the present invention,
10 is a front view of an air conditioning case showing air flow in a floor mode according to an embodiment of the present invention,
11 is a cross-sectional view showing an air conditioning apparatus for a vehicle according to a modified example of FIG. 4,
12 is a partially cut-away perspective view of an air conditioning case showing a hot channel part according to the embodiment of FIG. 11;
13 is a cross-sectional view of FIG. 12,
14 illustrates a vent mode of an air conditioning apparatus for a vehicle according to an embodiment of the present invention,
15 illustrates a bi-level mode of an air conditioning apparatus for a vehicle according to an embodiment of the present invention,
16 illustrates a floor mode of an air conditioner for a vehicle according to an embodiment of the present invention.

Hereinafter, the technical configuration of a vehicle air conditioner having a rear seat discharge port will be described in detail according to the accompanying drawings.

4 is a cross-sectional view showing a vehicle air conditioner according to an embodiment of the present invention, FIG. 5 is a view showing a rear seat mode door position in a vent mode according to an embodiment of the present invention, and FIG. 6 is an embodiment of the present invention. It is a front view of an air conditioning case showing air flow in a vent mode according to an embodiment.

4 to 6, the vehicle air conditioning apparatus according to an embodiment of the present invention includes an air conditioning case 110 having an air flow path formed therein, and air passing through the air flow path of the air conditioning case 110. It comprises a heat exchanger for cooling and a heat exchanger for heating to heat exchange.

The air conditioning case 110 includes a plurality of air outlets, and a blower is connected to the air inlet side so that internal or outdoor air is selectively introduced into the air flow path. The air outlet includes a front-seat air outlet consisting of a defrost vent 112, a front face vent 113, and a front seat floor vent 114, and a rear air outlet consisting of a console vent 115 and a rear seat floor vent 116. .

The cooling heat exchanger is composed of an evaporator 120. The refrigerant flowing inside the evaporator 120 and the air passing through the evaporator 120 are heat-exchanged to cool the air. The heat exchanger for heating is composed of a heater core (130). The cooling water flowing inside the heater core 130 and the air passing through the heater core 130 are heat-exchanged to heat the air. The heater core 130 is disposed in the hot air passage P2 which is the downstream side of the evaporator 120 in the air flow direction. An electric heat heater 140 such as a PTC heater may be further provided in the warm air passage P2.

The air flow passage inside the air conditioning case 110 is composed of a cold air flow passage P1 for all seats, a warm air flow passage P2 and a cold air flow passage P3 for the rear seat. At the downstream side of the evaporator 120, the air flow path is divided into three types: a cold air flow path for the front seat (P1), a hot air flow path (P2), and a cold air flow path for the rear seat (P3). The front seat cold air passage P1, the warm air passage P2, and the rear seat cold air passage P3 are sequentially formed from the upper side to the lower side. A warm air passage P2 is arranged between the front seat cold air passage P1 and the rear seat cold air passage P3 in the vertical direction.

The warm air passage P2 is formed so that the air that has passed through the evaporator 120 passes through the heater core 130 and the electric heater 140 and flows toward the front or rear seats of the vehicle. The cold air passage P1 for all seats is formed so that the air that has passed through the evaporator 120 is discharged to all seats of the vehicle by bypassing the heater core 130 and the electric heater 140. The rear seat cold air passage P3 is formed so that the air that has passed through the evaporator 120 bypasses the heater core 130 and the electric heater 140 and is discharged to the rear seat of the vehicle. The air that has passed through the evaporator 120 bypasses the heater core 130 of the hot air flow path P2 and flows into the cold air flow path P1 for the front seat and the cold air flow path P3 for the rear seat, or the heater core ( After passing through 130), it again merges into the front seat cold air passage (P1) or the rear seat cold air passage (P3) and flows.

The air conditioning case 110 is provided with an air discharge port for all seats for discharging air toward the front seats of the charang, and the air discharge port for all seats is controlled by a mode door for all seats. The front seat mode door is a defrost door 153 that adjusts the opening degree of the defrost vent 112, a vent door 154 that adjusts the opening degree of the front seat face vent 113, and the front seat floor vent 114. It consists of a floor door 155. In addition, the air conditioning case 110 is provided with a rear air discharge port for discharging air toward the rear of the vehicle, and the rear air discharge port is controlled by the rear mode door 158.

The vehicle air conditioning system includes a temp door 171 for all seats. The front temp door 171 controls the opening degree between a part of the cold air passage P1 and the warm air passage P2 for all seats. The front seat temp door 171 is adjacent to the downstream of the evaporator 120 and is located at the boundary where the front seat cold air passage P1 and the warm air passage P2 are divided. The front seat temp door 171 is made of a tail door type in which plate members are formed on both sides in a radial direction around a rotation axis.

The air conditioner for a vehicle according to an exemplary embodiment of the present invention is configured to perform temperature control of three independent zones of a front driver's seat, a front passenger seat, and a rear seat, and implements temperature control of the rear seats with three doors. That is, the vehicle air conditioner includes a first rear seat temp door 172, a second rear seat temp door 156 and a rear seat mode door 158.

The first rear-seat temp door 172 is disposed between the evaporator 120 and the heater core 130, and controls the opening of another part of the warm air passage P2. That is, the first rear-seat temp door 172 adjusts the opening degree of a portion below the inlet of the warm air passage P2 that the front seat temp door 171 does not cover among the inlet of the warm air passage P2.

The second rear-seat temp door 156 is disposed downstream of the heater core 130 and the electric heater 140, and controls the opening between the warm air passage P2 and the rear seat cold air passage P3. The warm air flow path P2 downstream of the heater core 130 and the cold air flow path P3 of the rear seat are configured to communicate with each other. The second rear seat temp door 156 is disposed in a communication passage between the warm air passage P2 and the rear seat cold air passage P3 downstream of the heater core 130. That is, the second rear seat temp door 156 adjusts the opening degree between the communication passage between the warm air passage P2 and the rear seat cold air passage P3 and the rear seat cold air passage P3.

The rear seat mode door 158 is disposed downstream of the second rear seat temp door 156 and adjusts the opening degree of the rear seat air discharge port. The rear seat mode door 158 is made of a dome type door type. The rear seat mode door 158 controls the opening degree between the console vent 115 and the rear seat floor vent 116. In addition, a rear seat on-off door 157 for opening or closing the rear seat cold air passage is further provided in the rear seat cold air passage P3.

The entrance of the rear seat floor vent 116 is formed above the entrance of the console vent 115. That is, the discharge passage of the console vent 115 is formed on the lower side so as to be connected to the cold air passage P3 in the rear seat, and the discharge passage of the rear seat floor vent 116 is formed on the upper side so as to connect with the warm air passage P2. Through this configuration, the discharge temperature of the console vent 115 is controlled to be lower than the discharge temperature of the rear seat floor vent 116, thereby effectively preventing an upper and lower temperature difference phenomenon and optimizing temperature control.

Specifically, the rear seat floor vents 116 are formed on both sides of the air conditioning case 110 in the width direction. In addition, the console vent 115 is formed between the pair of rear seat floor vents 116 in the width direction. That is, the console vent 115 is disposed at the center of the air conditioning case 110 in the width direction.

Through this configuration, it is possible to configure the rear seat floor vent 116 on the upper side of the console vent 115, and it is possible to minimize the resistance of the flow path toward the console vent 115. Consequently, in the cooling mode, the airflow resistance of the flow path between the rear seat cooling air flow passage P3 and the console vent 115 can be reduced, thereby increasing the air volume of the rear seat air outlet and improving the rear seat cooling performance.

The rear seat mode door 158 has a dome shape with both sides blocked in the width direction, and controls the opening degrees of the console vent 115 and the rear seat floor vent 116. The warm air in the warm air passage P2 moves to the lower side through the side of the rear seat floor vent 116 and is discharged through the rear seat floor vent outlet 1165 at the bottom.

That is, the rear seat mode door 158 blocks the air discharged to the rear seat floor vent 116 by blocking the entrance of the rear seat floor vent 116 on both sides in the width direction, and the dome surface blocks the entrance of the console vent 115 The air discharged to the vent 115 is blocked. In the vent mode, the rear seat mode door 158 is rotated maximum counterclockwise to close the rear seat floor vent 116. All of the air flowing through the rear seat cold air passage P3 is discharged into the room through the console vent 115.

FIG. 7 is a front view of a rear seat mode door in a bi-level mode according to an embodiment of the present invention, and FIG. 8 is a front view of an air conditioning case showing air flow in a bi-level mode according to an embodiment of the present invention.

7 and 8, in the bi-level mode, the rear seat mode door 158 is rotationally controlled to open both the rear seat floor vent 116 and the console vent 115. Part of the air flowing through the warm air passage P2 and the rear seat cold air passage P3 is discharged into the room through the rear seat floor vent 116 and the other part is discharged into the room through the console vent 115.

In this case, the hot air passing through the hot air passage P2 is more guided to the inlet of the rear seat floor vent 116 located on the upper side than the entrance of the console vent 115, so that relatively cold air passes through the console vent 115 Relatively warm air is discharged through the vents 116. Through this, it is possible to increase the passenger's satisfaction with air conditioning.

FIG. 9 is a front view of a rear seat mode door in a floor mode according to an embodiment of the present invention, and FIG. 10 is a front view of an air conditioning case showing air flow in a floor mode according to an embodiment of the present invention.

9 and 10, in the floor mode, the rear seat mode door 158 is rotated clockwise to close the console vent 115. All of the air flowing through the warm air passage P2 is discharged into the room through the rear seat floor vent 116.

Meanwhile, FIG. 11 is a cross-sectional view showing a vehicle air conditioning apparatus according to a modified example of FIG. 4, FIG. 12 is a partially cut-away perspective view of an air conditioning case showing a hot channel part according to the embodiment of FIG. 11, and FIG. It is a cross-sectional view.

11 to 13, a vehicle air conditioner according to a modified example of the present invention further includes a hot channel unit 200 compared to the embodiment of FIG. 4. The hot channel part 200 is provided downstream of the heat exchanger for heating and is disposed downstream of the electric heater 140. The hot channel unit 200 guides the air that has passed through the heater core 130 and the electric heater 140 to the console vent 115.

Through the configuration of the hot channel unit 200, it is possible to induce some of the warm air in the warm air passage P2 to the console vent 115. In the above-described embodiment, due to the configuration in which the entrance of the rear seat floor vent 116 is formed above the entrance of the console vent 115, the amount of hot air discharged to the console vent 115 may be rapidly reduced. By inducing some of the warm air to the console vent 115 through the hot channel unit 200, a decrease in the amount of warm air may be compensated.

The hot channel unit 200 connects the warm air passage P2 and the inlet of the console vent 115. In detail, the hot channel part 200 has a substantially rectangular tube shape with both sides open. One side 201 of the hot channel part 200 is opened toward the warm air passage P2, and the other side 202 is opened toward the console vent 115.

More specifically, the opening of the other side 202 of the hot channel part 200 is formed below the inlet of the rear seat floor vent 116. In addition, the opening of the other side 202 of the hot channel part 200 faces the inner side of the dome of the rear seat mode door 158. That is, the hot channel part 200 is formed between the pair of rear seat floor vents 116 in the width direction.

Through this configuration, the warm air of the warm air passage (P2) is more smoothly guided toward the console vent 115, and when a large amount of warm air must be sent to the console vent 115 in the heating mode, the resistance of the warm air can be reduced to improve heating performance. have. In addition, even in the bi-level mode, hot air is prevented from being concentrated to the rear seat floor vent 116, and the hot air is partially guided to the console vent 115, which is more advantageous in controlling temperature.

14 illustrates a vent mode of an air conditioning apparatus for a vehicle according to an embodiment of the present invention.

Referring to FIG. 14, in the vent mode, the front seat temp door 171 and the first rear seat temp door 172 close the warm air passage P2. Some of the air that has passed through the evaporator 120 is discharged into the room through the front seat face vent 113, and another part is discharged into the room through the console vent 115. In this case, the second rear seat temp door 156 closes the warm air passage P2, the rear on-off door 157 opens the rear cold air passage, and the rear mode door 158 opens the rear seat floor vent 116. Closed.

15 illustrates a bi-level mode of an air conditioner for a vehicle according to an embodiment of the present invention.

Referring to Figure 15, in the bi-level mode, the front seat temp door 171 and the first rear seat temp door 172 open the front seat cold air passage (P1), the warm air passage (P2), and the rear seat cold air passage (P3). Some of the air that has passed through the evaporator 120 passes through the heater core 130 and the electric heater 140, and another part flows into the front seat cold air passage P1 and the rear seat cold air passage P3. Some of the air is discharged into the room through the front seat face vent 113, and some of the air is discharged into the room through the rear seat floor vent 116 and the console vent 115. In this case, the second rear seat temp door 156 opens the warm air passage P2, the rear on-off door 157 opens the rear cold air passage, and the rear mode door 158 opens the rear seat floor vent 116 and The console vent 115 is opened.

16 illustrates a floor mode of an air conditioner for a vehicle according to an embodiment of the present invention.

Referring to FIG. 16, in the floor mode, the front seat temp door 171 and the first rear seat temp door 172 close the front seat cold air passage P1 and open the warm air passage P2. The air that has passed through the evaporator 120 passes through the heater core 130 and the electric heater 140, and some of them are discharged into the room through the front seat floor vent 114, and the other part is indoors through the rear seat floor vent 116. Is discharged. In this case, the second rear seat temp door 156 opens the warm air passage P2, the rear on-off door 157 closes the rear cold air passage, and the rear seat mode door 158 closes the console vent 115 do.

Until now, the air conditioning apparatus for a vehicle having a rear seat discharge port according to the present invention has been described with reference to the embodiment shown in the drawings, but this is only exemplary, and anyone of ordinary skill in the art knows that various modifications and equivalent other embodiments are possible from this. I will understand. Therefore, the true technical scope of protection should be determined by the technical spirit of the appended claims.

110: air conditioning case
112: defrost vent 113: all seat face vent
114: all seat floor vents 115: console vents
116: rear seat floor vent 120: evaporator
130: heater core 140: electric heater
153: defrost door 154: vent door
155: floor door 156: 2nd rear seat temp door
157: rear on/off door 158: rear mode door
171: front seat temp door 172: first rear seat temp door
P1: Cool air flow path for all seats P2: Warm air flow path
P3: Rear seat cold air passage
200: hot channel unit

Claims (14)

An air conditioning case having an air flow path formed therein and having a plurality of air discharge ports, and a cooling heat exchanger and a heating heat exchanger provided in the air flow path of the air conditioning case to exchange heat with air passing therethrough,
The air outlet has a console vent and a rear seat floor vent,
The air conditioner for a vehicle having a rear seat discharge port, characterized in that the inlet of the rear seat floor vent is formed above the inlet of the console vent. The method of claim 1,
The console vent discharge passage is formed on the lower side to connect with the cold air passage,
A vehicle air conditioner having a rear seat discharge port, characterized in that the rear seat floor vent discharge passage is formed on the upper side so as to be connected to the warm air passage. The method of claim 1,
The rear seat floor vents are formed on both sides of the air conditioning case in the width direction,
The console vent is a vehicle air conditioner having a rear seat discharge port, characterized in that formed between the pair of rear seat floor vents in the width direction. The method of claim 3,
The air conditioner for a vehicle having a rear seat discharge port, characterized in that the warm air of the warm air passage is discharged through the rear seat floor vent discharge port at the bottom after moving to the lower side through the side of the rear seat floor vent passage. The method of claim 3,
Equipped with a rear seat mode door that adjusts the opening of the console vent and the rear seat floor vent,
The rear seat mode door is a vehicle air conditioner having a rear seat discharge port, characterized in that the rear seat mode door has a dome shape with both sides blocked in the width direction. The method of claim 5,
The rear seat mode door is for vehicles with rear seat discharge ports that block the air discharged to the rear seat floor vent by blocking the entrance of the rear seat floor vent on both sides in the width direction, and the dome surface blocks the entrance of the console vent to block air discharged to the console vent. Air conditioning system. The method of claim 1,
The air flow path of the air conditioning case is a hot air flow path formed so that the air passing through the cooling heat exchanger passes through the heating heat exchanger, and the all-seat cold air flow path formed so that the air passing through the cooling heat exchanger bypasses the heating heat exchanger and is discharged to all seats of the vehicle. And a rear seat cold air passage formed so that air passing through the cooling heat exchanger is discharged to the rear seat of the vehicle by bypassing the heating heat exchanger,
The front seat cold air passage, the warm air passage, and the rear seat cold air passage has a rear seat discharge port sequentially formed from an upper side to a lower side. The method of claim 7,
The front seat temp door that controls the opening degree between the all-seat cold air passage and a part of the warm air passage, the first rear-seat temp door disposed between the cooling heat exchanger and the heating heat exchanger to control the opening of another part of the warm air passage, and the heating A vehicle air conditioner having a rear seat discharge port disposed downstream of the heat exchanger and including a second rear seat temp door for adjusting an opening between the hot air passage and the rear seat cold air passage. The method of claim 1,
A vehicle air conditioner having a rear seat discharge port provided with a hot channel part for guiding air passing through the heating heat exchanger to a console vent downstream of the heating heat exchanger. The method of claim 9,
The hot channel part is a vehicle air conditioner having a rear seat discharge port, characterized in that connecting between the hot air passage and the inlet of the console vent. The method of claim 9,
The hot channel portion has a tubular shape with both sides open, one side is opened toward a warm air passage and the other side is opened toward a console vent. The method of claim 11,
The air conditioner for a vehicle having a rear seat discharge port, wherein the opening of the other side of the hot channel part is formed below the inlet of the rear seat floor vent. The method of claim 11,
Equipped with a rear seat mode door that adjusts the opening of the console vent and the rear seat floor vent,
The rear seat mode door is formed in a dome shape with both sides blocked in the width direction,
The air conditioner for a vehicle having a rear seat discharge port, wherein the other opening of the hot channel portion faces an inner side of the dome of the rear seat mode door. The method of claim 9,
The rear seat floor vents are formed on both sides of the air conditioning case in the width direction,
The hot channel portion is a vehicle air conditioner having a rear seat discharge port, characterized in that formed between the pair of rear seat floor vents in the width direction.

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