KR20220139086A - Air conditioner for vehicle - Google Patents

Abstract

Disclosed is an air conditioning apparatus for a vehicle, capable of efficiently preventing a temperature difference between upper and lower parts by including a heat transfer prevention means in a cold air flow path heading toward a console vent through an evaporator or optimizing the shape of the cold air flow path. The air conditioning apparatus includes an air conditioning case having an air flow path formed therein and having an air inlet and an air outlet, and a heat exchanger for cooling and a heat exchanger for heating, provided in the air flow path of the air conditioning case, wherein the air flow path in the air conditioning case is divided into an upper flow path and a lower flow path, the lower flow path is provided with a front seat flow path for sending air to a front seat of a vehicle and a rear seat flow path for sending air to a rear seat thereof, and a rear seat flow path extension part extending the length of a flow path to be longer than the front seat flow path is formed in the rear seat flow path.

Description

Air conditioner for vehicle {AIR CONDITIONER FOR VEHICLE}

The present invention relates to an air conditioner for a vehicle, and more particularly, to a two-layer type air conditioner for a vehicle capable of maintaining high heating performance while securing defogging performance during heating.

In general, an air conditioner for a vehicle is a device that heats or cools a room by introducing external air into a room or circulating air in the room to heat or cool the room. A heater core or the like is configured, and the air cooled or heated by the evaporator or the heater core is selectively blown to each part of the vehicle interior.

In particular, in order to maintain a high heating performance while securing defogging performance during heating, a two-layer air conditioner has been developed. Low-humidity, cold outside air is effective to remove frost on windows during heating in winter, but it results in a lower indoor temperature.

The two-layer air conditioner effectively removes frost using fresh, low-humidity outdoor air supplied to the upper part by realizing a two-layered air flow that supplies outdoor air to the upper part of the vehicle and circulates bet air to the lower part for defogging during heating. At the same time, it provides fresh outside air to the occupants and supplies warm air to the lower part to maintain high heating performance.

Referring to FIG. 1, the conventional air conditioning system for a vehicle is configured to independently enable air conditioning in three zones of a front seat driver's seat, a front passenger seat, and a rear seat, and includes an air conditioning case 20 having an air inlet and an air outlet. . The air inlet is provided with a blower, and the air outlet is composed of a defrost vent 23 , a face vent 24 , a front seat vent 25 , a console vent 26 , and a rear seat floor vent 27 . Each vent is provided with a door 28 for adjusting the opening degree of the discharge port.

An evaporator 30 and a heater core 31 are sequentially provided in the air passage of the air conditioning case 20 . An electric heater 32 may be further provided downstream of the heater core 31 . The air passage of the air conditioning case 20 is divided into an upper passage 21 and a lower passage 22 by a partition wall 40 . Outside air flows in and flows into the upper passage 21 , and the bet air flows in and flows in the lower passage 22 . In this case, the bet and the outside air may be introduced into the upper passage 21 or the lower passage 22 as necessary.

A temp door is provided between the evaporator 30 and the heater core 31, and the temp door is a first temp door 46 disposed in the upper passage 21 and a second temp door disposed in the lower passage 22 (22). 48) consists of The air passage of the air conditioning case 20 is composed of an upper cold air passage (P1), an upper hot air passage (P2), a lower hot air passage (P3), and a lower cold air passage (P4), and the air passing through the evaporator 30 is flow in at least one of the four passages. In addition, a communication door 44 is provided at the rear of the heater core 31 . The communication door 44 controls the opening degree of the front seat floor vent 25 and communicates or separates the upper passage 21 and the lower passage 22 .

In a conventional air conditioner for a vehicle, a center passage in the width direction among three zone passages performs air conditioning control of the rear seat. In this vehicle air conditioner, the heat of the heater core 31 is transferred to the cold air passing through the evaporator 30 during maximum cooling, so that the discharge temperature of the console vent 26 side is increased. That is, there is a problem that the discharge temperature of the console vent 26 is higher than the discharge temperature of the face vent 24 during maximum cooling.

Patent Literature: Republic of Korea Patent Publication No. 2018-0001693 (2018.01.05)

In order to solve the conventional problems, the present invention provides an air conditioner for a vehicle that can effectively prevent a vertical temperature difference by providing a heat transfer preventing means in a cold wind passage passing through an evaporator to a console vent or by optimizing the shape of the cold wind passage. to provide.

An air conditioner for a vehicle according to the present invention includes an air conditioning case having an air flow path formed therein, an air inlet and an air outlet, and a cooling heat exchanger and a heating heat exchanger provided in the air flow path of the air conditioning case. In the following, the internal air flow path of the air conditioning case is divided into an upper flow path and a lower flow path, and the lower flow path includes a front seat flow path for blowing air toward the front seat of the vehicle and a rear seat flow path for blowing air toward the rear seat, After extending the length of the oil passage to a longer length than that of the all-oil oil passage, the oil passage extension is formed.

In addition, the rear oil passage is formed in the central portion in the width direction of the air conditioning case and the front oil passage is formed on both sides of the rear oil passage, and the rear oil passage extension part is formed to have a step with respect to the bottom surface of the front oil passage.

The lower flow passage includes a warm air flow passage passing through the heating heat exchanger, and a cold air flow passage disposed below the warm air flow passage and bypassing the heating heat exchanger, wherein the cold air flow passage is air-conditioned to blow air toward the rear seat of the vehicle. A rear seat cold air passage is provided at the center in the width direction of the case, and a front seat cold air passage is provided on both sides of the rear seat cold air passage to blow air toward the front seat of the vehicle.

The post oil passage extension part has a more gentle slope than the bottom surface of the front oil passage, and guides the cold air passing through the cooling heat exchanger toward the console vent.

The air conditioning case includes a lower case that covers a lower portion of the cooling heat exchanger, and the post oil passage extension is formed in the lower case.

In addition, it further includes an air pocket for forming a space therebetween by spaced apart from the air in the after-oil passage from the heat exchanger for heating.

An air conditioner for a vehicle according to another aspect of the present invention includes an air conditioning case having an air flow path formed therein, an air inlet and an air outlet, and a cooling heat exchanger and a heating heat exchanger provided in the air flow path of the air conditioning case. In the air conditioning apparatus, the internal air flow path of the air conditioning case is divided into an upper flow path and a lower flow path, and the lower flow path includes a front seat flow path for blowing air toward the front seat of a vehicle and a rear oil flow path for blowing air toward the rear seat, , and an air pocket portion for forming a space therebetween by separating the air from the oil passage passing through the cooling heat exchanger and bypassing the heating heat exchanger from the heating heat exchanger.

The air conditioning case includes a heat exchanger support for supporting the lower end of the heat exchanger for heating, and a rib for cold wind that is spaced apart from the heat exchanger support and forms an air pocket between the heat exchanger support and the heat exchanger support.

In addition, the rear oil passage is formed in the central portion in the width direction of the air conditioning case, the front oil passage is formed on both sides of the rear oil passage, and the cold wind rib is formed only in the rear oil passage.

The cold wind ribs are formed to extend from the heat exchanger support part in a streamlined shape toward the rear along the oil passage, and the cold wind ribs and the heat exchanger support part are spaced apart from the front to the rear, and the rear end is also spaced apart so that air can pass therebetween. is composed

The air conditioner for a vehicle according to the present invention can reduce the difference from the discharge temperature of the face vent by lowering the discharge temperature of the console vent in the cooling mode. In addition, the after-oil passage extension unit extends the flow path of the cold air to the rear to further guide the movement of the cold air toward the console vent in a state where the mixing of the cold and warm air is less made, thereby lowering the discharge temperature of the console vent more efficiently.

In addition, the heat pick-up phenomenon in which the heat of the heater core is transferred to the cooling flow path on the console vent side is prevented through the configuration of the cooling rib and the air pocket part, effectively preventing the console vent discharge temperature from rising can be On the other hand, since the discharge temperature of the console vent side is higher than the discharge temperature of the face vent side, it is possible to solve the problem that the cooling performance of the rear seat is lowered and the occupants are uncomfortable.

1 is a cross-sectional view showing a conventional vehicle air conditioner,
2 is a side cross-sectional view showing an air conditioner for a vehicle according to a first embodiment of the present invention;
Figure 3 is an enlarged side cross-sectional view of a part of Figure 2,
4 is a plan view showing a rear oil passage extension of the air conditioner for a vehicle according to the first embodiment of the present invention;
5 is a perspective view showing a rear oil passage extension of the air conditioner for a vehicle according to the first embodiment of the present invention;
6 is a side cross-sectional view showing an air conditioner for a vehicle according to a second embodiment of the present invention;
7 is an enlarged side cross-sectional view of a part of FIG. 6;
8 is a partially cut-away perspective view of a rib for a cold wind of an air conditioner for a vehicle according to a second embodiment of the present invention.

Hereinafter, the technical configuration of the vehicle air conditioner will be described in detail according to the accompanying drawings. In the following description, the left-right direction of FIG. 2 is the front-rear direction of the air conditioning case, and the left-right direction of FIG. 4 is the width direction of the air conditioning case.

2 to 5 , the vehicle air conditioner according to the first embodiment of the present invention includes an air conditioning case 110 , a plurality of doors, a blower unit, a heat exchanger for cooling and a heat exchanger for heating.

An air flow path is formed inside the air conditioning case 110 , an air inlet is formed at the inlet, and an air outlet is formed at the outlet. The air outlet includes a front seat air outlet for discharging air to the front seat of the vehicle and a rear seat air outlet for discharging air to the rear seat of the vehicle. In addition, the front seat air outlet is composed of a defrost vent 111 , a face vent 112 , and a floor vent 113 , and the rear seat air outlet is composed of a console vent 114 .

The plurality of doors are rotatably provided inside the air conditioning case 110 to adjust the opening degree of the air outlet. That is, the door includes a defrost door 121 for controlling the opening degree of the defrost vent 111 , a face door 122 for adjusting the opening degree of the face vent 112 , and a floor for adjusting the opening degree of the floor vent 113 . It is composed of a door 123 and a console door 124 that adjusts the opening degree of the console vent 114 .

The blower unit is provided at the air inlet of the air conditioning case 110, and is made to selectively introduce the bet and the outside air. The inside of the blower unit is partitioned into an outside air flow path through which the bet flows and the outside air flow. The bet air flowing through the air flow path of the blower unit is blown into the lower flow path of the air conditioning case 110 , and the outside air flowing through the outside air flow path of the blower unit is blown through the upper flow path of the air conditioning case 110 .

The cooling heat exchanger and the heating heat exchanger are sequentially provided in the air flow path of the air conditioning case 110 along the air flow direction. The cooling heat exchanger includes an evaporator 102 that cools air by exchanging refrigerant with air, and the heating heat exchanger includes a heater core 103 that heats air by exchanging cooling water with air. The heat exchanger for heating further includes an electrothermal heater 104 such as a PTC that generates heat by application of power. The heat exchanger for heating may be configured in the form of a condenser using a heat pump system in addition to the heater core 103 .

The air flow path of the air conditioning case 110 is divided into an upper flow path 151 and a lower flow path 152 by a dividing wall 140 . The air introduced into the air passage of the blower unit flows into the lower passage 152 of the air conditioning case 110, and the air introduced into the outdoor air passage of the blower unit flows into the upper passage 151 of the air conditioning case 110. The dividing wall 140 extends substantially horizontally upstream of the evaporator 102, between the evaporator 102 and the heater core 103, and downstream of the electric heater 104, and is formed to extend an upper flow path 151 and a lower flow path ( 152) is divided up and down. The air conditioning case 110 includes a heat exchanger support 181 for supporting the lower end of the heat exchanger for heating.

The internal air flow path of the air conditioning case 110 is divided into an upper flow path 151 and a lower flow path 152 in the vertical direction, and is formed of a two-layer type. The air conditioning system for a two-story vehicle can maintain high heating performance while securing defogging performance during heating. That is, by supplying outside air to the upper part of the vehicle and circulating the bet air to the lower part for defogging during heating, it effectively removes frost using fresh and low-humidity outside air supplied to the upper part, while providing fresh outside air to the occupants and providing warm air. Supply the bet to the lower part to maintain high heating performance.

The upper passage 151 is provided with an upper temp door 161 , and the lower passage 152 is provided with a lower temp door 162 . The upper temp door 161 and the lower temp door 162 are provided between the evaporator 102 and the heater core 103 to control the amount of air passing through and bypassing the heater core 103 . The floor vent 113 is for discharging air toward the foot of the occupant, the console vent 114 is for discharging air to the rear seat of the vehicle, and the defrost vent 111 is for discharging air to the vehicle window side, The face vent 112 is for discharging air to the upper side of the front seat of the vehicle.

The upper passage 151 includes a warm air passage P2 passing through the heater core 103 and a cold air passage P1 disposed below the warm air passage P2 and bypassing the heater core 103 . In addition, the lower flow passage 152 includes front seat passages 171 and 172 for blowing air toward the front seat of the vehicle and a rear seat passage 173 for blowing air toward the rear seat of the vehicle. In addition, the lower flow path 152 includes a warm air flow path P3 passing through the heater core 103 and a cold air flow path P4 disposed below the warm air flow path P3 and bypassing the heater core 103 . do.

That is, the cold air passage P1 of the upper passage 151, the warm air passage P2 of the upper passage 151, the warm air passage P3 of the lower passage 152, and the cold air passage P4 of the lower passage 152 are It is formed sequentially from top to bottom. More specifically, the cold wind passage P4 includes a rear seat cold wind passage and a front seat cold wind passage. The rear seat cold air passage is disposed at the center in the width direction of the air conditioning case 110 to blow air toward the rear seat of the vehicle, and the front seat cold air passage is disposed on both sides of the rear seat cold air passage to blow air toward the front seat of the vehicle.

In addition, the air conditioning case 110 is provided with a lower case that covers the lower portion of the evaporator (102). The front oil passage 171 and the after oil passage 173 on one side are partitioned by a first partition wall 191 , and the front oil passage 172 and the after oil passage 173 on the other side are separated by a second partition wall 192 . ) is delimited by In the rear oil passage 173, guide ribs 193 for guiding air to the console vent 114 on the bottom surface of the lower case to increase the air volume are formed to extend toward the central portion in the width direction.

In particular, the post oil passage extension 210 is formed in the after oil passage 173 . The post-oil passage extension 210 is formed in the after-oil passage 173, and is formed by extending the length of the passage longer than that of the front oil passages 171 and 172. The oil passage extension 210 is formed on the bottom surface of the lower case. That is, the post-oil path extension unit 210 functions to extend and move the movement path of the cold air that has passed through the evaporator 102 to the right rear side in FIG. 2 , that is, to the downstream side in the air flow direction.

Through the configuration of the after-oil passage extension part 210, the cold air that has passed through the evaporator 102 and bypassed the heater core 103 is directly passed to the console vent 114 side. As a result, by lowering the discharge temperature of the console vent 114 in the cooling mode, the difference with the discharge temperature of the face vent 112 can be reduced.

The rear oil passage extension part 210 is formed in the rear seat cold wind passage. That is, the rear oil passage 173 is formed in the central portion in the width direction of the air conditioning case 110 , and the front oil passage 171 , 172 is formed on both sides of the rear oil passage 173 . As shown in FIG. 5 , the rear oil passage extension part 210 is formed to be stepped with respect to the bottom surface 201 of the front oil passages 171 and 172 . The rear oil passage extension unit 210 is distinguished from the front oil passages 171 and 172 through a step difference, and may extend the cold air passage only for the rear oil passage 173 .

As shown in FIGS. 2 and 3 , the rear oil passage extension 210 illustrated by a solid line is formed to extend rearward from the bottom surface 201 of the front oil passages 171 and 172 illustrated by dotted lines. Some of the cold air of the cold air passage P4 that has passed through the evaporator 102 moves along the electric oil passages 171 and 172, and then moves upward on the slope of the dotted line bottom surface 201 located at the end of the passage It is mixed with the warm air of the flow path (P3) in the mixing zone.

In addition, another part of the cold air of the cold wind passage P4 that has passed through the evaporator 102 moves along the after oil passage 173 and then rides the slope of the solid line after oil passage extension 210 located at the end of the passage to the upper portion. It moves and is mixed with the warm air of the warm air flow path P3 in the mixing zone MZ. Accordingly, the mixing zone MZ of the rear oil passage 173 is formed further rearward (downstream side) compared to the mixing zone of the front oil passage 171 and 172 . As a result, it is possible to lower the discharge temperature of the console vent 114 by further guiding the movement of the cold air with less mixing to the console vent 114 side.

In this case, the rear oil passage extension 210 has a more gentle slope than the bottom surfaces of the front oil passages 171 and 172 . For this reason, the cold air passing through the evaporator 102 can be more smoothly guided toward the console vent 114 . As a result, the after-oil passage extension unit 210 extends the flow path of the cold air to the rear to further guide the movement of the cold air toward the console vent 114 in a state where the mixing of the cold air and the warm air is less made.

6 to 8, the vehicle air conditioner according to the second embodiment of the present invention includes an air conditioning case 110, a plurality of doors, a blower unit, a heat exchanger for cooling and a heat exchanger for heating . In this embodiment, a description of the overlapping configuration with the first embodiment will be omitted.

The air outlet of the air conditioning case 110 is composed of a defrost vent 111 , a face vent 112 , a floor vent 113 , and a console vent 114 . The door includes a defrost door 121 , a face door 122 , a floor door 123 , and a console door 124 . In addition, the heat exchanger for cooling is composed of an evaporator 102 , and the heat exchanger for heating is composed of a heater core 103 and an electric heater 104 .

The air flow path of the air conditioning case 110 is divided into an upper flow path 151 and a lower flow path 152 by a dividing wall 140 . The upper passage 151 is provided with an upper temp door 161 , and the lower passage 152 is provided with a lower temp door 162 . The cold air passage P1 of the upper passage 151, the warm air passage P2 of the upper passage 151, the warm air passage P3 of the lower passage 152, and the cold air passage P4 of the lower passage 152 are formed from the upper portion. are formed sequentially in the downward direction. The lower flow path 152 includes front seat passages 171 and 172 for blowing air toward the front seat of the vehicle and a rear seat passage 173 for blowing air toward the rear seat of the vehicle.

The vehicle air conditioner according to the second embodiment of the present invention further includes an air pocket unit 220 compared to the first embodiment. The air pocket part 220 separates the air of the after oil passage 172 from the heat exchanger for heating, thereby forming a space between the heat exchanger for heating and the after oil passage 172 . The after-oil passage 172 passes through the evaporator 102 and bypasses the heater core 103 . That is, a space is formed between the after oil passage 172 and the heater core 103 and the electric heater 104 by the air pocket portion 220 .

The air conditioning case 110 includes a heat exchanger support 181 and a cold wind rib 230 . The heat exchanger support 181 supports the lower end of the heat exchanger for heating. That is, the heat exchanger support 181 is formed to surround the lower ends of the heater core 103 and the electric heater 104 . The cold wind rib 230 extends from the heat exchanger support 181 toward the rear of the air conditioning case 110 , and is spaced downward from the heat exchanger support 181 .

The cold wind rib 230 is formed to extend from the heat exchanger support 181 toward the rear along the after-oil passage 173 in a streamlined shape. An air pocket 220 is formed between the cold wind rib 230 and the heat exchanger support 181 . In this case, the cold wind rib 230 is not formed in the front oil passages 171 and 172 but is formed only in the rear oil passage 173 . In addition, the cold wind rib 230 and the heat exchanger support 181 are spaced apart from the front to the rear, the rear end is also spaced apart so that air can pass therebetween.

Through the configuration of the air pocket 220 and the cold wind rib 230 , the air that has passed through the evaporator 102 flows as far away from the heater core 103 as possible. Therefore, the heat pick-up phenomenon in which the heat of the heater core 103 is transferred to the cooling passage of the console vent 114 side is prevented, and the discharge temperature of the console vent 114 can be effectively prevented from rising. have.

In addition, through the configuration in which the air pocket unit 220 and the cold wind rib 230 are not formed in the front oil passages 171 and 172 but are formed only in the rear oil passage 173, the discharge temperature on the console vent 114 side is increased. Since it is higher than the discharge temperature of the face vent 112 side, it is possible to solve the problem that the cooling performance of the rear seat is lowered and the occupant is uncomfortable. In addition, through the configuration in which the rear end of the air pocket part 220 and the heat exchanger support part 181 are spaced apart, the position of the mixing zone MZ does not change significantly in a state in which the cooling flow path and the heating flow path are not completely divided. In terms of controllability, it does not have a significant effect.

On the other hand, the additional rib 250 may further extend to the heat exchanger support 181 . The additional ribs 250 extend backward from the heat exchanger support 181 to form an air pocket 240 that is an additional space between the heat exchanger 104 and the electric heater 104 . Accordingly, a double air pocket portion is provided between the warm air passage P3 and the after oil passage 173 to further maximize the effect of preventing the heat pickup.

In addition, a guide rib 260 may be further provided under the rib 230 for cold air. The guide ribs 260 are additionally formed under the ribs 230 for cold air to separate the heater core 103 and the after-oil passage 173 once more, and the cold air passing through the evaporator 102 in a diagonal direction downwards. It is possible to more effectively prevent the temperature of the cold air from rising due to the heat generated in the heater core 103 by guiding it.

Up to now, the vehicle air conditioner according to the present invention has been described with reference to the embodiment shown in the drawings, but this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope should be determined by the technical spirit of the appended claims.

102: evaporator 103: heater core
104: electric heater 110: air conditioning case
111: defrost bent
112: face vent 113: floor vent
114: console vent 121: defrost door
122: face door 123: floor door
124: console door 140: partition wall
151: upper flow passage 152: lower flow passage
161: upper temp door 162: lower temp door
181: heat exchanger support 210: after oil passage extension
220: air pocket unit 230: cold wind rib

Claims (10)

An air conditioner for a vehicle comprising an air conditioning case having an air flow path formed therein and having an air inlet and an air outlet, and a cooling heat exchanger and a heating heat exchanger provided in the air flow path of the air conditioning case, the air conditioner comprising:
The internal air flow path of the air conditioning case is divided into an upper flow path and a lower flow path,
The lower flow passage includes a front seat passage for blowing air toward the front seat of the vehicle and a rear oil passage for blowing air toward the rear seat,
An air conditioner for a vehicle in which a later oil passage extension part extending a length of a passage longer than a front oil passage is formed in the rear oil passage. The method of claim 1,
In the width direction of the air conditioning case, a rear oil passage is formed in the center, and a front oil passage is formed on both sides of the rear oil passage,
The rear oil passage extension portion is an air conditioner for a vehicle in which a step is formed with respect to the bottom surface of the front oil passage. 3. The method according to claim 1 or 2,
The lower flow path includes a hot air flow path passing through the heat exchanger for heating, and a cold air flow path disposed below the warm air flow path and bypassing the heating heat exchanger,
The cold air flow passage includes a rear seat cold air passage arranged in the center in the width direction of the air conditioning case to blow air toward the rear seat of the vehicle, and a front seat cold air passage arranged on both sides of the rear seat cold air passage to blow air toward the front seat of the vehicle. ,
The rear oil passage extension part is an air conditioner for a vehicle formed in a rear seat cold wind passage. 3. The method according to claim 1 or 2,
The rear oil passage extension portion has a more gentle slope than the bottom surface of the front oil passage, and guides the cold air passing through the cooling heat exchanger toward the console vent. 3. The method according to claim 1 or 2,
The air conditioning case includes a lower case covering the lower portion of the cooling heat exchanger,
The air conditioner for a vehicle, characterized in that the rear oil passage extension is formed in the lower case. 3. The method according to claim 1 or 2,
An air conditioner for a vehicle further comprising an air pocket portion for separating air from the after-oil passage from the heat exchanger for heating and forming a space therebetween. An air conditioner for a vehicle comprising an air conditioning case having an air flow path formed therein and having an air inlet and an air outlet, and a cooling heat exchanger and a heating heat exchanger provided in the air flow path of the air conditioning case, the air conditioner comprising:
The internal air flow path of the air conditioning case is divided into an upper flow path and a lower flow path,
The lower flow passage includes a front seat passage for blowing air toward the front seat of the vehicle and a rear oil passage for blowing air toward the rear seat,
An air conditioner for a vehicle, comprising: an air pocket for forming a space therebetween by separating air from a post oil passage passing through a cooling heat exchanger and bypassing the heating heat exchanger from the heating heat exchanger. 8. The method of claim 7,
The air conditioning case is provided with a heat exchanger support for supporting the lower end of the heat exchanger for heating,
and a rib for cold air spaced downward from the heat exchanger support part to form an air pocket part between the heat exchanger support part and the heat exchanger support part. 9. The method of claim 8,
In the width direction of the air conditioning case, a rear oil passage is formed in the center, and a front oil passage is formed on both sides of the rear oil passage,
The air conditioner for a vehicle, characterized in that the cold wind rib is formed only in the after oil passage. 9. The method of claim 8,
The cold wind rib is formed to extend from the heat exchanger support part in a streamlined direction toward the rear along the after-oil passage,
The cooling rib and the heat exchanger support part are spaced apart from the front to the rear, and the rear end is also spaced apart so that air can pass through the vehicle air conditioner.

Images