KR102635129B1 - Air conditioner for vehicle - Google Patents

Abstract

A vehicle air conditioning device is disclosed that prevents temperature inversion by blowing warm air through the rear seat face vent and cold air through the rear seat floor vent. An air conditioning system for a vehicle including an air conditioning case in which an air passage is formed inside the air conditioning system and an air outlet is formed, and a heat exchanger for cooling and a heat exchanger for heating provided in the air passage of the air conditioning case, wherein the rear seat face vent of the air conditioning case By changing the shape of the front and rear seat mode doors, warm air is discharged through the rear seat floor vent and cold air is discharged through the rear seat face vent, improving air conditioning performance. The rear seat discharge housing of the vehicle air conditioner includes a rear seat face vent portion of the air conditioning case with a flat top so that warm air is discharged through the rear seat floor vent and directed toward the floor, and a rear seat mode door that is convex inward in the center portion. Gently slope the cool air flow path so that the cool air is discharged through the rear seat face vent. A fourth baffle is additionally installed in the center of the rear seat discharge housing to prevent warm air from being discharged through the rear seat face vent.

Description

Vehicle air conditioning system {AIR CONDITIONER FOR VEHICLE}

The present invention relates to an air conditioning device for a vehicle, and more specifically, a two-layer air conditioning device for a vehicle capable of maintaining high heating performance while ensuring defogging performance during heating, and provides independent air conditioning for the front driver's seat, front passenger seat, and rear seat, and three zones. This relates to a two-layer flow & three-zone type vehicle air conditioning system that can perform control.

In general, a vehicle air conditioning system is a device that heats or cools the interior by introducing outside air into the interior or circulating interior air to heat or cool it. It consists of a blower unit that introduces and blows inside or outside air, and the air blown from the blower unit. It consists of an air conditioning unit that conditions air and discharges it into the vehicle interior.

Cool, low-humidity outdoor air is effective in removing frost from windows when driving in winter, but it results in a lower indoor temperature. To solve this problem, a two-layer air conditioning system was developed to maintain high heating performance while securing defogging performance during heating. The two-layer air conditioning device implements a two-layer internal and external air flow that supplies outdoor air to the upper part of the vehicle window and circulates indoor air to the lower part for defogging during heating, using fresh and low-humidity outdoor air supplied to the upper part of the window. This effectively removes frost, provides fresh outside air to occupants, and maintains high heating performance by supplying warm air to the lower part.

Figure 1 is a cross-sectional view showing a conventional rear seat discharge housing 12 including the rear seat face vent part 10 and the rear seat mode door 11 of a conventional vehicle air conditioner. Referring to FIG. 1, the rear seat face vent portion 10 of the air conditioning case is configured in a dome shape, and the rear seat mode door 11 is configured in a convex shape on the outside.

A certain type of air flow path is formed inside the air conditioning case's rear face vent unit 10 and the rear seat mode door 11, and warm air flows along the inner wall of the rear seat face vent unit 10 of the air conditioning case. There was a problem with the temperature inversion phenomenon that passed through the first air passage and headed to the console. In addition, there was a problem of a temperature inversion phenomenon in which cold air could not go to the console due to the steep slope of the outer convex shape of the rear seat mode door 11, but instead passed through the second air passage and headed toward the floor.

Therefore, in the conventional vehicle air conditioning system, the lower warm air passage is located at the upper part compared to the lower cold air passage, and the rear seat face vent is located at the upper part compared to the rear seat floor vent, so physically hot air is directed upward and cold air is directed downward, so that the rear seat face vent There is a problem in that warm air is discharged through the rear seat floor vent and cold air is discharged through the rear seat floor vent, causing the temperature of the rear seat to change up and down.

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

In order to solve such conventional problems, the present invention modifies the shape of the rear face vent part and the rear seat mode door of the air conditioning case, while additionally installing a fourth baffle on the fixing part of the rear seat mode door, thereby reducing the temperature inversion phenomenon. Provides a two-layer air conditioning device for vehicles that can prevent and improve air conditioning performance.

An air conditioning device for a vehicle according to the present invention includes an air conditioning case having an air passage formed therein and an air discharge port, and a heat exchanger for cooling and a heat exchanger for heating provided in the air passage of the air conditioning case. A rear seat air passage is provided at the bottom of the air conditioning case, and in the rear seat air passage, a hot air passage is formed on the upper side and a cold air passage is formed on the lower side, and a rear seat discharge device having a rear seat face vent and a rear seat floor vent to discharge air to the rear seat side. It includes a housing and a rear seat mode door installed inside the rear seat discharge housing to adjust the opening degree of the rear seat face vent and the rear seat floor vent, wherein the rear seat mode door is of a rotary type including a plate for controlling the opening degree, , and has a guide portion that guides the warm air from the warm air flow path to be discharged to the rear seat floor vent or the cold air from the cold air flow path to be discharged to the rear seat face vent.

In the above, the rear seat floor vent is disposed lower than the rear seat face vent, and guides cold air passing through the cooling heat exchanger to the rear seat face vent, and guides warm air passing through the heating heat exchanger to the rear seat floor vent.

In the above, the guide part may be formed by forming the rear seat face vent part of the air conditioning case located on the upper part of the rear seat face vent in a straight line.

In the above, the guide portion is formed to have a larger air flow passage area on the lower side than on the upper side centered on the rear seat mode door rotation axis.

In the above, the rear seat mode door is rotatably semi-fixed to the center of the rear seat discharge housing to form a convex shape in the inward direction, and is detachable from the center of the rear seat discharge housing.

In the above, a baffle is installed on the rear seat mode door to guide warm air to the rear seat floor vent outlet.

In the above, the baffle is detachable and has a vertical bar-shaped shape.

In the above, the internal air passage of the air conditioning case is divided into an upper passage and a lower passage in the vertical direction to form a two-layer flow type, and independent temperature control in three zones is possible for the front driver's seat, front passenger seat, and rear seat. It is done so that

In the above, the rear seat face vent and the rear seat floor vent are formed to extend in communication with the lower passage.

In the above, the air outlet is provided with a front seat defrost vent, a front seat face vent, and a front seat floor vent for discharging air to the front seats of the vehicle, and a passage leading to the front seat floor vent is formed in the lower passage, and the air in the lower passage is formed. It is equipped with a communication door that allows it to selectively flow to the front floor vent or upper passage.

In the above, the first guide means formed on the bottom surface of the air conditioning case consists of a pair of first baffles, a second baffle that guides the warm air that has passed through the heating heat exchanger in a downward direction, and the air that rises through the lower passage. It is provided with a third baffle that is rounded to lower the inclination of the baffle.

The vehicle air conditioning device according to the present invention can provide comfortable air conditioning to the occupants by inducing cold air through the rear seat face vent and warm air through the rear seat floor vent when air conditioning the rear of the vehicle, and does not cause a decrease in air volume. The guidance means can be easily implemented effectively and without increasing costs.

1 is a cross-sectional view showing the rear seat discharge housing of a conventional vehicle air conditioning system;
Figure 2 is a cross-sectional view showing the rear discharge housing of a vehicle air conditioning system showing the flow of cold air and warm air in a mixed mode according to an embodiment of the present invention;
Figure 3 is a cross-sectional view showing the shape of the rear face vent part of an air conditioning case constituting a vehicle air conditioning device according to an embodiment of the present invention and the corresponding warm air guide part;
Figure 4 is a cross-sectional view showing the shape of the rear-seat mode door constituting the vehicle air conditioning system according to an embodiment of the present invention and the corresponding cold air guide part;
Figure 5 is a cross-sectional view showing a fourth baffle coupled to the rear mode door of a vehicle air conditioning system according to an embodiment of the present invention.
Figure 6 is a cross-sectional view of a vehicle air conditioning system showing the air flow in the vent mode of the vehicle air conditioning system according to an embodiment of the present invention;
Figure 7 is a cross-sectional view of a vehicle air conditioning system showing the air flow in the mix mode of the vehicle air conditioning system according to an embodiment of the present invention;
Figure 8 is a cross-sectional view of a vehicle air conditioning system showing air flow in a defrost mode of the vehicle air conditioning system according to an embodiment of the present invention.

Below, the technical configuration of the vehicle air conditioning system will be described in detail according to the attached drawings.

A vehicle air conditioning system according to an embodiment of the present invention includes an air conditioning case 110. An air passage is formed inside the air conditioning case 110, and an air discharge port is formed at the outlet. The air outlet consists of a front seat air outlet that discharges air to the front seats of the vehicle and a rear seat air outlet that discharges air to the rear seat of the vehicle. The front seat air outlet consists of a front seat defrost vent (111), a front seat face vent (112), and a front seat floor vent (113), and the rear seat air outlet consists of a rear seat face vent (114) and a rear seat floor vent (115).

A plurality of doors are provided inside the air conditioning case 110. The door has a defrost door (121) that controls the opening degree of the front seat defrost vent (111), a face door (122) that controls the opening degree of the front seat face vent (112), and a front door that controls the opening degree of the front seat floor vent (113). It includes a communication door 123 and a rear seat mode door 124 that adjusts the opening degrees of the rear seat face vent 114 and the rear seat floor vent 115.

A blower unit is provided at the entrance of the air conditioning case 110, and the blower unit selectively introduces internal and external air. The inside of the blower unit is divided into an internal passage and an external air passage. In the air passage of the air conditioning case 110, a cooling heat exchanger and a heating heat exchanger are sequentially provided in the air flow direction. The cooling heat exchanger consists of an evaporator 102, and the heating heat exchanger consists of a heater core 103 and an electric heater 104 such as a PTC.

The air passage of the air conditioning case 110 is divided into an upper passage 151 and a lower passage 152 by a separation wall 140. The air flowing into the internal passage of the blower unit flows into the lower passage 152 of the air conditioning case 110, and the air flowing into the external air passage of the blower unit flows into the upper passage 151 of the air conditioning case 110. The separation wall 140 is formed to extend approximately horizontally upstream of the evaporator 102, between the evaporator 102 and the heater core 103, and downstream of the electric heater 104, and forms an upper passage 151 and a lower passage ( 152) The road is divided into upper and lower sections.

The internal air passage of the air conditioning case 110 is divided into an upper passage 151 and a lower passage 152 in the vertical direction and is of a 2-layer type, and is divided into three zones (front driver's seat, front passenger seat, and rear seat). Zone) is made to enable independent temperature control. The two-layer air conditioning system for vehicles can maintain high heating performance while ensuring defogging performance during heating. In other words, for defogging during heating, outside air is supplied to the top of the vehicle and indoor air is circulated to the bottom, thereby effectively removing frost using fresh, low-humidity outside air supplied to the top, while providing fresh outside air to the occupants and providing warm, warm air. The heater is supplied to the bottom 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 is 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 lower temp door 162 is provided between the evaporator 102 and the heater core 103 to control the amount of air passing through and bypassing the heater core 103.

In the upper passage 151, an upper cold air passage bypassing the heater core 103 and an upper warm air passage passing through the heater core 103 are formed, and in the lower passage 152, a lower warm air passage passing through the heater core 103 is formed. A lower cold air passage that bypasses the passage and the heater core 103 is formed. The upper cold air passage, the upper warm air passage, the lower warm air passage, and the lower cold air passage are formed sequentially from top to bottom.

Some of the air flowing through the upper passage 151 is discharged to the front defrost vent 111 or the front seat face vent 112 on the driver's seat of the vehicle, and the other air is discharged to the front defrost vent 111 or the front passenger seat at the front of the vehicle. It is discharged through the face vent (112). Additionally, the air flowing in the lower passage 152 may be discharged to the front seat floor vent 113 at the front of the vehicle, or may be discharged to the front seat air outlet through communication with the upper passage 151. In addition, the air flowing through the lower center passage is discharged to the rear seat face vent 114 or the rear seat floor vent 115 at the rear of the vehicle.

The vehicle air conditioning system includes a means to prevent temperature reversal. The temperature reversal prevention means guides the cold or warm air flowing in the lower passage 152 so that the temperature of the air discharged to the rear seat face vent 114 is lower than the temperature of the air discharged to the rear seat floor vent 115. do. That is, the temperature reversal prevention means prevents the temperature of the air discharged from the rear seat face vent 114 from becoming higher than the temperature of the air discharged from the rear seat floor vent 115.

When hot air is discharged through the rear seat face vent (114) and cold air is discharged through the rear seat floor vent (115), it causes discomfort to the occupants, and the means of preventing temperature reversal is the rear seat face vent (114), which prevents relatively cold air from flowing out. It is discharged and guides relatively warm air to be discharged through the rear floor vent 115, thereby providing comfortable air conditioning to rear seat (second or third row) passengers.

The rear seat floor vent 115 discharges air toward the occupant's feet, and the rear seat face vent 114 discharges air toward the occupant's face, so the rear seat floor vent 115 is physically located lower than the rear seat face vent 114. do. Since the lower warm air passage is physically located higher than the lower cold air passage, the warm air flowing through the lower warm air passage tends to be discharged to the rear seat face vent 114, which is physically located higher than the rear seat floor vent 115. Cold air flowing through the lower cold air passage tends to be discharged through the rear seat floor vent 115, which is physically located lower than the rear seat face vent 114. The upper and lower temperature reversal prevention means guides the air in the lower warm air passage to the rear seat floor vent 115 and the air in the lower cold air passage to the rear seat face vent 114, thereby preventing this upper and lower temperature reversal phenomenon.

More specifically, the means for preventing temperature up/down reversal is formed by changing the structure of the rear seat discharge housing 300.

Figure 2 is a cross-sectional view showing the rear discharge housing 300 of a vehicle air conditioning system showing the flow of cold air and warm air in a mixed mode according to an embodiment of the present invention.

The rear seat discharge housing 300 of the vehicle air conditioning device according to an embodiment of the present invention includes a rear face vent portion 200 of the air conditioning case, and a rear seat mode door 124 is located in the middle of the interior of the rear seat discharge housing 300. is formed. Air that has passed through the evaporator 102 and heater core 103 of the vehicle air conditioning system passes through the rear seat discharge housing 300. The cold air in the air that has passed through the evaporator 102 and the heater core 103 by the rear seat face vent unit 200 and the rear seat mode door 124 of the air conditioning case is directed toward the console through the rear seat face vent 114. Warm air flows toward the floor through the rear floor vent 115. The rear seat floor vent 115 is disposed lower than the rear seat face vent 114.

Figure 3 is a cross-sectional view showing the shape of the rear face vent portion of the air conditioning case constituting the rear seat discharge housing 300 of the vehicle air conditioning device according to an embodiment of the present invention and the warm air guide portion accordingly.

Referring to FIG. 3, it can be seen that the rear seat face vent portion 200 of the air conditioning case is configured in a straight shape. Referring to the solid line shown in FIG. 1 and the dotted line shown in FIG. 3, the rear seat face vent portion 10 of the conventional air conditioning case has a round semicircular shape, so the warm air flowing into the rear seat discharge housing 12 is blown into the conventional air conditioning case. There were frequent cases where it moved along the inner wall of the rear seat face vent part 10, moved to the rear seat face vent, and was discharged toward the console. However, while the shape of the rear seat face vent 200 of the air conditioning case is configured to be straight, the warm air flowing into the rear seat discharge housing 300, like the air flow shown by the solid line in FIG. 3, flows through the rear seat face vent of the air conditioning case. (200) It can be seen that it is refracted when it hits the inner wall. In particular, the air flow passage area at the lower side may be formed to be larger than the upper side around the rotation axis of the rear seat mode door 124. The warm air refracted toward the lower part of the rear seat discharge housing 300 moves toward the rear seat floor vent 115 and is eventually discharged toward the floor.

Figure 4 is a cross-sectional view showing the shape of the rear-seat mode door of a vehicle air conditioning system according to an embodiment of the present invention and the resulting cold air guide portion.

Referring to the dotted line shown in FIG. 4, it can be seen that the conventional rear seat mode door 11, which has a convex shape in the outward direction, has a steep flow path slope. Therefore, it was difficult for the cold air flowing into the rear seat discharge housing 300 to pass through the rear seat face vent 114 and be discharged toward the console. On the other hand, the newly formed rear seat mode door 124 has a convex shape in the inward direction. This structure forms a relatively gentle flow path slope compared to the previous flow path slope. Accordingly, the cold air entering the rear seat discharge housing 300 easily flows along the slope of the rear seat mode door 124, moves toward the rear seat face vent 114, and is discharged toward the console.

Figure 5 is a cross-sectional view showing a fourth baffle coupled to the rear mode door of a vehicle air conditioning system according to an embodiment of the present invention.

The rear seat mode door 124 is rotatably semi-fixed to the center of the rear seat discharge housing 300. Referring to the dotted line shown in FIG. 5, in the conventional case, the warm air coming from the vehicle air conditioner escapes through the gap where the edge of the rear seat mode door 124 does not reach, flows into the rear seat face vent 114, and flows toward the console. Discharge was frequent. Accordingly, in order to overcome the problem of not being able to completely prevent the air reversal phenomenon even if the shape of the rear seat mode door 124 is improved as described above, a fourth baffle 240 was additionally installed on the rear seat mode door.

The baffle 240 is provided on the fixing part of the rear seat mode door 124. The baffle 240 is located at the center of the rear seat discharge housing 300 and faces the warm air flowing into the rear seat discharge housing 300. Accordingly, the flow path of warm air in the direction of the rear seat face vent 114 is blocked or it hits the baffle 240 and is deflected toward the lower part of the rear seat discharge housing 300. Accordingly, the hot air that is prevented from moving to the outlet of the rear seat face vent 114 and is refracted or blocked moves to the rear seat floor vent 115 and is discharged toward the floor. In particular, in order to maximize the refraction and blocking effect, the baffle 240 is shaped like a vertical bar. By forming a bar-shaped shape, it is possible to block as much as possible the flow of warm air that the rear seat mode door 124 cannot block. In addition, it is designed to be attachable and detachable from the fixing part of the rear seat mode door 124, so it can be easily installed from the user's perspective.

Figure 6 is a cross-sectional view of a vehicle air conditioning system showing the air flow in a vent mode according to an embodiment of the present invention, and Figure 7 is a cross-sectional view of a vehicle air conditioning system showing the air flow in a mixed mode according to an embodiment of the present invention. Cross-sectional view, FIG. 8 is a cross-sectional view of a vehicle air conditioning system showing air flow in a defrost mode according to an embodiment of the present invention.

Referring to FIG. 6, in the vent mode, the upper temp door 161 and the lower temp door 162 close the upper warm air passage and the lower warm air passage, respectively. Additionally, the rear seat mode door 124 closes the rear seat floor vent 115 and opens the rear seat face vent 114. The cold air from the upper passage passing through the evaporator 102 bypasses the heater core 103, passes through the upper cold air passage, and is discharged into the interior through the front seat face vent 112, and the cold air from the lower passage passes through the lower cold air passage to the rear seats. It is discharged indoors through the face vent (114).

The back of the rear seat mode door 124 is positioned toward the rear seat face vent 114 to block cold air flowing through the rear seat floor vent 115 toward the floor. As a result, the cold air flowing into the rear seat discharge housing 300 passes through the rear seat face vent 114 along the gentle slope formed by the rear seat mode door 124, which has an inward convex shape, and is discharged toward the console.

Referring to FIG. 7, in the mix mode, the upper temp door 161 opens both the upper hot air passage and the upper cold air passage, and the lower temp door 162 opens both the lower hot air passage and the lower cold air passage. The rear seat mode door 124 opens both the rear seat face vent 114 and the rear seat floor vent 115.

Some of the air in the upper passage passing through the evaporator 102 bypasses the heater core 103 and passes through the upper cold air passage, and the other portion passes through the heater core 103 and passes through the upper warm air passage to the front seat face vent 112. Alternatively, it is discharged into the room through the front seat defrost vent (111).

Some of the air in the lower passage passing through the evaporator 102 bypasses the heater core 103 and passes through the lower cold air passage, and the other portion passes through the heater core 103 and passes through the lower warm air passage to the front floor vents 113. , it is discharged into the room through the rear seat face vent 114 and the rear seat floor vent 115. The air passing through the lower cold air passage is discharged to the rear seat face vent 114 by the first guide means 210 and the third baffle 230 equipped with the first baffle, and the air passing through the lower warm air passage is discharged to the second baffle. More is discharged to the rear floor vent 115 by the baffle 220.

In particular, after air flows into the rear seat discharge housing 300, the cold air travels along the gently sloping slope of the rear seat mode door 124, passes through the rear seat face vent 114, and is discharged toward the console. The warm air hits the rear seat face vent part 200 of the air conditioning case, which has a flat shape, and is refracted toward the lower part of the rear seat discharge housing 300, or is blocked and refracted by the fourth baffle 240, causing the rear seat face vent 114. It cannot flow in this direction and flows to the rear floor vent 115 and is discharged in the floor direction. The fourth baffle 240 is in a straight line with the lower part of the rear seat mode door 124 and blocks the path of warm air toward the rear seat face vent 114.

Referring to FIG. 8, the upper temp door 161 and the lower temp door 162 close the upper and lower cold air passages, respectively. Additionally, the rear seat mode door 124 closes the rear seat face vent 114 and the rear seat floor vent 115, and the communication door 123 closes the front seat floor vent 113. The warm air in the upper passage that passes through the evaporator 102, the heater core 103, and the electric heater 104 passes through the upper warm air passage and is discharged into the room through the front defrost vent 111, and is discharged into the room through the evaporator 102. The warm air in the lower passage passing through the heater core 103 and the electric heater 104 moves through the lower warm air passage to the upper passage and is discharged into the room through the front seat defrost vent 111.

In the rear seat discharge housing (300), the back of the rear seat mode door (124) is placed so that the back of the rear seat mode door (124) faces the inside of the air conditioning case (110), so that warm air from the heater core (103) flows toward the rear seat face vent (114) and the rear seat floor vent (115). It cannot flow in either direction, so it is not discharged in the direction of the console or floor.

So far, the vehicle air conditioning system according to the present invention has been described with reference to the embodiments shown in the drawings, but these are merely examples, and anyone skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true scope of technical protection should be determined by the technical spirit of the attached patent claims.

10: Conventional rear seat face vent 11: Conventional rear seat mode door
12: Conventional rear discharge housing 102: Evaporator
103: heater core 104: electric heater
110: Air conditioning case 111: Front seat defrost vent
112: Front seat face vent 113: Front seat floor vent
114: Rear seat face vent 115: Rear seat floor vent
121: Defrost door 122: Face door
123: Flue door 124: Rear seat mode door
140: separation wall 151: upper passage
152: lower passage 161: upper temp door
162: Lower temp door
200: Rear seat face vent of air conditioning case
210: First guidance means
220: 2nd baffle 230: 3rd baffle
240: Fourth baffle 300: Rear seat discharge housing

Claims (13)

An air conditioning case with an air passage formed inside and an air discharge port formed therein,
In the vehicle air conditioning device including a cooling heat exchanger and a heating heat exchanger provided in the air passage of the air conditioning case,
A rear air passage is provided at the bottom of the air conditioning case,
In the rear seat air passage, a hot air passage is formed on the upper side and a cold air passage is formed on the lower side,
A rear seat discharge housing having a rear seat face vent and a rear seat floor vent to discharge air to the rear seat side,
It includes a rear seat mode door installed inside the rear seat discharge housing to adjust the opening degree of the rear seat face vent and the rear seat floor vent,
The rear seat mode door is of a rotary type including a plate that adjusts the opening degree,
It has a guide part that guides the warm air from the warm air flow path to be discharged to the rear seat floor vent or the cold air from the cold air flow path to the rear seat face vent,
The rear seat floor vent is disposed lower than the rear seat face vent,
The guide part guides cold air passing through the cooling heat exchanger to the rear seat face vent, and guides warm air passing through the heating heat exchanger to the rear seat floor vent,
The guide portion forms a straight rear seat face vent portion of the air conditioning case located above the rear seat face vent,
The guide portion is formed to have a larger air flow path area on the lower side than on the upper side centered around the rotation axis of the rear seat mode door,
The rear seat mode door is rotatably semi-fixed to the center of the rear seat discharge housing and has a convex shape in the inward direction,
The warm air flowing into the rear seat discharge housing hits the inner wall of the rear face vent part of the air conditioning case and is refracted,
A vehicle air conditioning device characterized in that cold air entering the rear seat discharge housing flows along the slope of the rear seat mode door and is guided to the rear seat face vent. delete delete delete delete According to paragraph 1,
An air conditioning device for a vehicle, wherein the rear seat mode door is detachable from the center of the rear seat discharge housing. According to paragraph 1,
An air conditioning device for a vehicle, characterized in that a baffle is installed on the rear seat mode door to guide warm air to the rear seat floor vent. In clause 7,
An air conditioning device for a vehicle, wherein the baffle is detachable. In clause 7,
An air conditioning device for a vehicle, wherein the baffle has a vertical bar shape. According to paragraph 1,
The internal air passage of the air conditioning case is divided into an upper passage and a lower passage in the vertical direction and is of a two-layer flow type, and is configured to enable independent temperature control of three zones for the front driver's seat, front passenger seat, and rear seat. An air conditioning device for a vehicle, characterized in that. According to clause 10,
An air conditioning device for a vehicle, wherein the rear seat face vent and the rear seat floor vent extend to communicate with the lower passage. According to clause 10,
The air outlet is provided with a front seat defrost vent, a front seat face vent, and a front seat floor vent for discharging air to all seats of the vehicle,
A passage leading to the floor vent for all seats is formed in the lower passage,
An air conditioning system for a vehicle, characterized in that it is provided with a communication door that allows air from the lower passage to selectively flow to the front seat floor vent or the upper passage. According to clause 12,
The first guide means formed on the bottom of the air conditioning case consists of a pair of first baffles,
a second baffle that guides the warm air passing through the heating heat exchanger downward;
An air conditioning system for a vehicle, comprising a third baffle that is rounded to lower the slope of air rising through the lower passage.

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