KR101566309B1 - Air conditioner for vehicle - Google Patents

Abstract

[0001] The present invention relates to a vehicle air conditioner, and more particularly, to a dome plate of a gourmet mode door, in which a face portion corresponding to a gentle face vent and a floor portion corresponding to a gentle floor vent are formed in a stepped manner, And the hot air flows toward the top floor vent through the relatively large portion of the outer side of the floor portion to improve the mixing performance of the cold air and the warm air, The present invention relates to an air conditioner for a vehicle, which reduces a difference in temperature between upper and lower portions of a floor vent and improves the comfort of a passenger.

Description

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

[0001] The present invention relates to a vehicle air conditioner, and more particularly, to a dome plate of a gourmet mode door, in which a face portion corresponding to a gentle face vent and a floor portion corresponding to a gentle floor vent are formed in a stepped manner, And the hot air flows toward the top floor vent through the relatively large portion of the outer side of the floor portion to improve the mixing performance of the cold air and the warm air, The present invention relates to an air conditioner for a vehicle, which reduces a difference in temperature between upper and lower portions of a floor vent and improves the comfort of a passenger.

Background Art [0002] A vehicle air conditioner is an automobile interior product installed for the purpose of enabling a driver to secure front and rear vision by removing air from the windshield during rainy or winter or by cooling or heating the interior of the automobile in the summer or winter season. Such an air conditioning apparatus is usually equipped with a heating system and a cooling system at the same time so that the outside air or the inside is selectively introduced to heat or cool the air and then air is blown into the inside of the vehicle to cool,

Such a vehicle air conditioner may be developed in various forms according to the type of vehicle or the same type of vehicle according to the specifications. For example, a single zone (full-seat space) air conditioner, a dual zone (front left and right) air conditioner, , Right and left-handed space).

 FIG. 1 is a cross-sectional view of a conventional single zone air conditioning system. In the air conditioning apparatus 1, an air inlet 11 is formed at one side and an opening is controlled by a mode door 16a, 16b, An air conditioning case 10 provided with a defrost vent 12a, a face vent 12b and a floor vent 12c; An evaporator (2) and a heater core (3) provided on the air passage in the air conditioning case (10) at regular intervals in order; And an air blowing device (not shown) connected to the air inlet 11 of the air conditioning case 10 to blow indoor air or outdoor air.

A cool air passage P1 for bypassing the heater core 3 and a warm air passage P2 for passing through the heater core 3 are disposed between the evaporator 2 and the heater core 3, A temperature control door 15 is provided to regulate the temperature of the liquid.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is activated, the temperature control door 15 opens the cold air passage P1 and closes the warm air passage P2 do. Accordingly, the air blown by the blower (not shown) flows through the evaporator 2, exchanges heat with the refrigerant flowing in the evaporator 2 and is converted into a cool air, and then passes through the cool air passage P1 to the mixing chamber (16a, 16b, 16c) in accordance with a predetermined air discharge mode (vent mode, bi-level mode, floor mode, mix mode and defrost mode) To the front seat space of the vehicle interior, thereby cooling the front seat space.

In addition, when the maximum heating mode is activated, the temperature control door 15 closes the cold air passage P1 and opens the warm air passage P2. Thus, the air blown by the air blowing device (not shown) flows through the heater core 3 through the hot air passage P2 after passing through the evaporator 2 and the cooling water flowing in the heater core 3, And then flows to the mixing chamber MC. Thereafter, the air is discharged through the vent open by the mode doors 16a, 16b, and 16c to the front seat space in the vehicle interior according to the predetermined air discharge mode, Heating of the space is performed.

The dual zone air conditioner is provided with a separator (not shown) at the center of the air conditioner case 10 to divide the inside of the air conditioner case 10 to the left and right, On both sides, left and right temperature control doors that operate independently from each other can be installed to adjust the temperature of left and right seats independently.

The triple zone air conditioning system 1a is obtained by adding a rear moon air passage 20 to the lower portion of an oval air passage 17 made up of cold and warm air passages P1 and P2 in the dual zone air conditioner, 2, the evaporator 2 and the heater core 3 are installed in the air conditioning case 10, and the air conditioning temperature control door 15 and the all-over mode doors 16a, 16b, 16c The heater core 3 is further provided with a rear moon cylinder path 20 and a heater core 3 is provided between the rear moon cylinder path 20 and the warm air passage P2. 3) A rear seat temperature control door 26 is provided in front of the heater core 3 on the front side.

In addition, a plurality of air discharge openings are formed on the exit side of the rear moon air passage 20, the openings of which are controlled by the star mode doors 27 and 28, respectively. That is, A vent 21 and a recessed floor vent 22 for discharging air toward the foot of a seated occupant are formed.

In addition, the top face vent 21 and the back floor vent 22 are provided with a star mode door 27, 28, respectively, to control the opening degree.

Therefore, the cold air passing through the rear moon air passage 20 and the rear moon air passage after passing through the hot air passage P2 are separated by the rear temperature control door 25 and the rear auxiliary temperature control door 26 20 is controlled and then discharged to the upholstered space through the overhead face vent 21 or the upholstery floor vent 22 which is opened by the overhead mode doors 27 and 28, , And then it is heated.

However, in the case of adjusting the seawater temperature (for example, in the supercritical bi-level mode) in which the seaweed mode doors 27 and 28 open both the seawater face vent 21 and the seawater vent 22, It is preferable to discharge the hot air to the foot of the occupant for the sake of comfort. However, on the upper and lower arrangement structure of the front seat air passage 17 and the rear seat air passage 20, The hot cold air passing through the hot air passage P2 of the oval seat air passage 17 is discharged to the passengers through the rear seat face vent 20, A large amount of hot air is blown toward the face of the occupant, and the temperature difference between the top and bottom of the discharged air is great, That was the problem.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the aforementioned problems, and it is an object of the present invention to provide a dome plate of a gourd mode door, wherein a face portion corresponding to a gourd face vent and a floor portion corresponding to a gourd floor vent are formed stepwise, So that the hot air flows relatively to the outer side of the floor portion and is directed to the top floor vent to improve the mixing performance of the cold air and the warm air, And to provide a vehicular air conditioning system in which the upper and lower temperature difference of the top floor vent is reduced, thereby improving the comfort of the occupant.

According to an aspect of the present invention, there is provided an air conditioner including an air conditioning case having an all-steel air passage formed of a cold air passage and a hot air passage, and a rear moon air passage formed in a lower portion of the hot air passage, And a heater core, wherein a back seat discharge housing having a back face vent and a back seat floor vent to discharge air to the back seat side is provided at an exit side of the back air passage case of the air conditioning case, And a dome plate spaced apart from the rotary shaft in a radial direction by a predetermined distance to provide a rotary type door mode door for adjusting the opening of the upright face vent and the bottom floor vent, A face portion formed at a position corresponding to the vent, And a floor part formed at a position corresponding to the abutment, wherein the face part and the floor part are formed to be stepped on each other in the radial direction of the rotation shaft.

The present invention is characterized in that the face portion corresponding to the face face vent and the floor portion corresponding to the face floor vent and the corresponding floor portion are formed to be stepped on the dome plate of the gourmet mode door so that the cool air passes through the inside of the face portion relatively much, So that the mixing ability of the cold air and the warm air is improved so that the upper face temperature and the lower air temperature difference of the air discharged to the upper face vent and the upper floor vent are improved, Thereby improving the comfort of the occupant.

In addition, the back face vent and the back floor vent can be opened and closed using a single hinged mode door, reducing the number of components and simplifying control.

1 is a sectional view showing a conventional single zone air conditioning apparatus,
2 is a sectional view showing a conventional triple zone air conditioning apparatus,
3 is a perspective view showing a vehicle air conditioner according to the present invention,
4 is a cross-sectional perspective view showing a side of a rearward discharge housing in a vehicle air conditioning system according to the present invention,
5 is a cross-sectional view of Fig. 4,
FIG. 6 is a perspective view showing a gourd mode door in the automotive air conditioner according to the present invention,
FIG. 7 is a cross-sectional perspective view of the rearward discharge housing side of the automotive air conditioner according to the present invention,
8 is a cross-sectional perspective view of the car seat air conditioning apparatus according to the present invention viewed from above,
FIG. 9 is a sectional view showing an all-round cooling mode and a rear cooling mode of the vehicle air conditioning system according to the present invention,
FIG. 10 is a sectional view showing an all-over heating mode and a full heating mode of the automotive air conditioner according to the present invention,
FIG. 11 is a cross-sectional view showing an all-round mixing mode and a full-back mixing mode (full-back-bi-level mode) of the automotive air conditioner according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in the drawings, an air conditioning apparatus 100 according to the present invention includes an air inlet 111 on one side and a plurality of omnidirectional air outlets on the other side (outlet side) An evaporator 101 and a heater core 101 are installed on the front air passage 105 inside the air conditioning case 110 so as to be spaced apart from each other in the air flow direction, (P1) which is installed between the evaporator (101) and the heater core (102) and bypasses the heater core (102) which is an oval air passage (105) And an overturn temperature control door 115 for controlling the opening degree of the warm air passages P2, P3 passing through the passages 102, 102.

A mixing region MC is formed on the upstream side of the plurality of omnidirectional air outlets so that the cool air passing through the cool air passage P1 and the warm air passing through the warm air passages P2 and P3 are mixed with each other.

On the other hand, the hot air passages P2 and P3 are formed in a "U" shape via the heater core 102, the inlet P2 of the hot air passage is diverged from the cold air passage P1, And the outlet P3 communicates with the mixing region MC.

The air flowing into the inlet P2 of the warm air passage passes through the heater core 102 and then turns to the mixing region MC through the outlet P3 of the warm air passage. A partition wall 119 is formed between the inlet P2 of the hot air passage and the outlet P3 of the hot air passage to partition the air on the inlet P2 of the hot air passage and the air on the outlet P3 side of the hot air passage.

The partition wall 119 is formed on the upper end of the heater core 102 and extends from the upper end of the heater core 102 to the rotation axis position of the door temperature control door 115.

An air blowing device (not shown) is installed in the air inlet 111 of the air conditioning case 110 to introduce air or air into the air conditioning case 110.

The plurality of pre-air discharge openings include a defrost vent (112) for discharging air to the windshield of the vehicle, a face vent (113) for discharging air toward the face of the occupant of all seats, and air And floor vents 114 for discharging are sequentially formed.

In addition, the openings of the vents 112 to 114 are controlled by opening and closing the plurality of oven mode doors 116.

Meanwhile, a partition wall 117 is formed between the outlet P3 of the hot air passage and the floor vent 114, and the air flowing into the outlet P3 of the hot air passage by the partition wall 117 The air flowing into the floor vent 114 is partitioned.

The evaporator 101 is installed so as to stand adjacent to the air inlet 111 of the air conditioning case 110 and the heater core 102 is installed to stand on the hot air passage P2.

The evaporator 101 and the heater core 102 may be vertically installed in the air conditioning case 110, but they may be installed at an angle with a certain angle as shown in the drawing.

Although not shown in the drawing, a compressor, a condenser, and an expansion valve are connected to the evaporator 101 through a refrigerant pipe to form a refrigeration cycle, so that air passing through the evaporator 101 is cooled, and the heater core 102 The cooling water heated by the engine is circulated to the heater core 102 through the cooling water pipe so that the air passing through the heater core 102 is heated.

Of course, in an electric vehicle or a hybrid vehicle, an electric heater may be installed instead of the heater core 102.

The center temperature control door 115 is a center pivot type and includes a rotary shaft installed between the evaporator 101 and the heater core 102 in the air conditioning case 110, A first door portion 115a which is formed at one side of the center and which adjusts the opening of the cold air passage P1 and the opening P2 of the hot air passage, And a second door portion 115b for adjusting the opening of the second door portion 115b.

Therefore, in the maximum cooling mode, the first door portion 115a opens the cold air passage P1 and closes the inlet P2 of the hot air passage, and at the same time, The air outlet 115b closes the outlet P3 of the hot air passage to prevent the air in the hot air passage heated by the heater core 102 from flowing toward the mixing area MC.

In the maximum heating mode, the first door portion 115a closes the cold air passage P1 and opens the inlet P2 of the hot air passage, while the second door portion 115b opens the outlet of the hot air passage (P3).

In the lower part of the warm air passage P2 in the air conditioning case 110, a rear moon air passage 140 is formed.

The rear moon air passage 140 is divided through the hot air passage P2 and the partition wall 144 and supplies air to the back space of the vehicle interior to perform the independent independent air conditioning.

The inlet of the rear moon air passage 140 is formed so as to communicate with the passage on the downstream side (rear side) of the evaporator 101 and the outlet of the rear moon air passage 140 communicates with the backward discharge housing 120 .

A plurality of air discharging holes 120a are formed in the back discharging housing 120 formed on the outlet side of the rear moon air passage 140 to discharge air to the back side.

The plurality of air discharge openings 120a are composed of a top face vent 121 for discharging air toward the face of the rider and a ridge bottom vent 122 for discharging air toward the foot of a rider.

The back face vent 121 is formed at the center in the width direction of the back discharge housing 120, that is, at the center in the axial direction of the star mode door 145, The back face vent 121 and the back face floor vent 122 are formed at a predetermined angle from each other in the rotation direction of the door mode door 145. [

At this time, the top face vent 121 is formed above the top floor vent 122.

That is, the upright face vent 121 is formed at the outer circumferential surface of the upright discharge housing 120 to communicate with the center of rotation shaft 146 of the upright mode door 145 at 3 o'clock, And is formed communicating at 6 o'clock with the rotation shaft 146 of the gull mode door 145 as the center.

In the inside of the top discharge housing 120, a tear-off mode door 145 for controlling the opening of the tearing face vent 121 and the top floor vent 122, which are the plurality of air discharging holes 120a, Respectively.

The steering mode door 145 is composed of a rotary type door and includes a rotary shaft 146 rotatably mounted on both opposite sides of the rear discharge housing 120, A dome plate 147 which is spaced at a predetermined distance in the radial direction from the upper face 146 and the sealing wall 149 at both ends in the rotating direction and adjusts the openings of the face face vent 121 and the back face floor vent 122, And a pair of side plates 148 connecting both ends of the dome plate 147 with the rotation shaft 146.

A sealing portion 123 is formed between the upper face vent 121 and the upper floor vent 122 in the back discharge housing 120 to contact the sealing wall 149 of the upper door 145 .

The dome plate 147 of the gourmet mode door 145 includes a face portion 147a formed at a position corresponding to the gourmet face vent 121 and a face portion 147b formed at a position corresponding to the gourmet floor vent 122 The face portion 147a and the floor portion 147b are formed to be stepped with respect to each other in the radial direction of the rotation shaft 146. [

The face portion 147a of the dome plate 147 is formed at the center in the axial direction of the star mode door 145 and the floor portion 147b of the dome plate 147 is connected to the face portion 147a As shown in Fig.

The face 147a of the dome plate 147 is formed with a larger radius than the floor portion 147b with respect to the rotation axis 146 and the floor portion 147b of the dome plate 147 And is formed with a smaller radius than the face portion 147a around the rotation axis 146. [

In other words, the face portion 147a of the dome plate 147 is formed to extend in the radial direction by forming a surface farther from the floor portion 147b with respect to the rotation axis 146, 147 form a dome plate 147 so that a step is formed by forming a surface closer to the face portion 147a with respect to the rotation shaft 146. [

Therefore, the cool air passing through the rear moon air passage 140 and flowing into the back discharge housing 120 passes through the inside of the face portion 147a and is guided toward the upright face vent 121 The warm air is guided to pass through the outer side of the floor part 147b relatively to the front floor vent 122 to improve the mixing performance of the cold air and the warm air, The upper and lower temperature difference of the top floor vent 122 can be reduced to improve the comfort of the occupant.

In the prior art, a large amount of cold air having passed through the rear moon air passage 140 is discharged to the adjacent floor vent 122. In the present invention, however, the dome plate 121 formed at a position corresponding to the vertical face vent 121 The cold air passing through the rear moon air passage 140 passes a relatively large amount of the inside of the face portion 147a and is directed to the hot face vent 121 by expanding the face portion 147a of the rear wall 147, , The temperature of the air discharged toward the face of the seated occupant is lowered through the seaming face vent 121,

Although the hot air passing through the hot air passage P2 has conventionally been discharged to the relatively adjacent hot face vent 121 in the related art, in the present invention, the dome plate 121 formed at the position corresponding to the hot bottom floor vent 122 The floor portion 147b of the floor portion 147 is formed so as to be stepped so as to be close to the rotation axis so that the warm air passing through the warm air passage P2 relatively flows outside the floor portion 147b (between the floor portion and the inside surface of the back discharge housing) So that the temperature of the air discharged toward the foot of the occupant is increased through the front floor vent 122.

As a result, a large amount of cold air is blown into the face-face vent 121 through the inside of the face portion 147a of the dome plate 147, and the air is blown through the outside of the floor portion 147b of the dome plate 147, And the vent 122 supplies a large amount of warm air, thereby reducing the temperature difference between the top and bottom of the air discharged to the back of the cabin, thereby improving the comfort of the occupant.

In addition, the cold air passing through the rear moon air passage 140 is mixed with warm air that is guided by the face portion 147a and discharged to the upright face vent 121, so that the temperature of the air discharged toward the face of the occupant And eventually the unpleasant feeling when hot hot air is supplied to the face of the passengers can be solved.

The width W1 of the face portion 147a is preferably equal to the width W2 of the facing face vent 121.

In the meantime, in the present invention, the number of parts can be reduced and the control can be simplified by opening and closing the top face vent 121 and the top floor vent 122 using one annular mode door 145.

The partition wall 144 partitioning the warm air passage P2 and the rear moon air passage 140 is provided with a warm air inlet 140 for communicating the rear moon air passage 140 with the front warm air passage of the heater core 102, And a hot air outlet 136 for communicating the rear hot air passage of the heater core 102 and the upright discharge housing 120 are formed.

The rear door temperature control door 141 is provided on the side of the warm air inlet 135 to adjust the opening degree of the rear moon air passage 140 and the warm air inlet 135. The rear door temperature control door 141, The mixed amount of the hot air passing through the heater core 102 through the hot air inlet 135 and the hot air outlet 136 and the cold air bypassing the heater core 102 through the rear moon air passage 140 .

A supplementary auxiliary temperature control door 142 for regulating the opening degree of the hot air outlet 136 and supplying hot air passed through the heater core 102 to the upside discharge housing 120 is installed on the hot air outlet 136 side do.

The rear auxiliary temperature control door 142 is connected to the rear temperature control door 141 by a link (not shown).

On the other hand, a rear on-off door 143 is provided in the rear masonry passage 140 to turn on and off the rear masonry passage 140.

The air conditioner case 110 is provided with a separator 118 for dividing the interior of the air conditioner case 110 to the left and right so that the temperatures of the left and right seats and the left and right seats of the front seats can be independently controlled.

Hereinafter, the operation of the air conditioner for a vehicle according to the present invention will be described.

The description of the general air discharge mode (defrost mode, vent mode, bistle mode, floor mode, and mix mode) will be omitted. Representative examples include an all-pass cooling mode and a deep cooling mode, Only the mixing mode and the afterglow mixing mode will be described.

end. All-air cooling mode and aft cooling mode (Fig. 9)

9, the all-round temperature control door 115 opens the cold air passage P1 and closes the inlet and the outlet P2 and P3 of the hot air passage in order to cool all the stoves .

In addition, for aft cooling, the rear-on-off door 143 opens the rear masonry passage 140, the rear temperature control door 141 closes the hot air inlet 135, (142) closes the hot air outlet (136).

In addition, the air conditioner is operated to circulate cold refrigerant in the evaporator 101.

Therefore, the air blown into the air conditioning case 110 through the air blowing device is converted into a cool air in the process of passing through the evaporator 101, and a part of the air is discharged to the air discharge port through the cool air passage P1 The entire space is cooled,

And a part of the air is discharged toward the face of the seated passenger through the rear masonry passage 140 and the seam face vent 121 to cool the seated space.

I. All-over heating mode and full heating mode (FIG. 10)

The front seat temperature control door 115 closes the cold air passage P1 and opens the mouths P2 and P3 of the hot air passage as shown in FIG. 10 .

In addition, the back-on-off door 143 closes the rear masonry passage 140, and the back-side temperature control door 141 opens the warm-air inlet 135, (142) opens the hot air outlet (136).

In addition, the air conditioner is stopped, and the hot engine cooling water circulates in the heater core 102.

The air blown into the air conditioning case 110 through the blowing device passes through the evaporator 101 and some of the air that has passed through the evaporator 101 passes through the warm air passages P2 and P3 The air passes through the heater core 102 and is discharged to the air discharge ports of all the stoves,

Some of the air is introduced into the inlet of the rear masonry passage 140 and then flows into the hot air passage through the hot air inlet 135. After the hot air is changed into hot air in the process of passing through the heater core 102, 136 to the exit side discharge outlet housing 120 of the rear moon air passage 140 and then discharged to the feet of the occupant through the upright floor vent 122 to heat the upright space.

All. The pre-mixing mode and the deep mixing mode (Fig. 11)

11, in order to control the temperature of the all seats to an appropriate temperature, the front seat temperature control door 115 is connected to the cold air passage P1 and the inlet and outlet (hot air passage) of the hot air passage P2, and P3 are all opened.

Off door 143 opens the rear masonry passage 140 and the rear temperature control door 141 opens the rear masonry passage 140 and the hot air inlet 140. [ 135 and both the auxiliary auxiliary temperature control door 142 and the hot air outlet 136 are opened.

On the other hand, the gentle mode door 145 opens both the gentle face vent 121 and the gentle floor vent 122.

In addition, the air conditioner is operated to circulate cold refrigerant in the evaporator 101, and hot engine cooling water circulates in the heater core 102.

Therefore, the air blown into the air conditioning case 110 through the air blowing device is changed into cold air through the evaporator 101, and some of the cold air passing through the evaporator 101 passes through the cold air passage P1 to the mixing region MC and a part of the cool air flows into the mixing region MC after being changed into warm air in the process of passing through the heater core 102 through the warm air passages P2 and P3, And then discharged to the air discharge port of the front seat so as to control the front seat space to an appropriate temperature,

Some of the cool air that has passed through the evaporator 101 flows into the inlet of the rear moon air passage 140. Some of the cool air that has flowed into the inlet of the rear moon air passage 140 flows into the rear moon air passage 140, The cold air flows into the back discharge housing 120 through the air passage 140 and some of the cold air is changed into warm air in the course of passing through the heater core 102 through the hot air inlet 135, And flows toward the housing 120 side.

The cool air introduced into the backward discharge housing 120 through the rear moon air passage 140 passes through the inside of the face portion 147a of the advanced mode door 145 and passes through the back face vent 121 A large amount is discharged and the remainder is discharged to the top floor vent 122,

The hot air flowed into the backward discharge housing 120 through the hot air passage P2 passes through the floor portion 147b of the advanced mode door 145 (between the floor portion and the inner surface of the rearward discharge housing) A large amount is discharged to the floor vent 122 and the rest is discharged to the top face vent 121.

In the above process, mixing performance of the air discharged to the upright face vent 121 and the upright floor vent 122 is improved, so that the difference in the up-and-down temperature of the air discharged into the upright can be reduced.

100: air conditioner 101: evaporator
102: heater core 105: all-purpose air passage
110: air conditioning case
111: air inlet 112: diffused vents
113: Pace Vents 114: Floor Vents
115: front seat temperature control door 115a: first door portion
115b: second door portion 116: front door mode door
117: partition wall 118: separator
119:
120: Teflon discharge housing 121: Tread face vent
122: a bottom floor vent 123: a sealing part
135: Hot Air Entrance 136: Hot Air Entrance
140: a rear miter cylinder 141: a rear temperature control door
142: Roof auxiliary temperature control door 143: Roof on off door
144: compartment wall
145: Barge mode door 146:
147: dome plate 147a: face portion
147b: Floor part 148: Side plate

Claims (5)

An air conditioning case 110 having an oval air passage 105 composed of a cold air passage P1 and warm air passages P2 and P3 and a rear moon air passage 140 formed in a lower portion of the warm air passage P2, And an evaporator (101) and a heater core (102) provided inside the air conditioner case (110), the air conditioner comprising:
The back exhaust ventilation housing 120 having the back face vent 121 and the back floor vent 122 to discharge the air to the back side is provided at the outlet side of the rear moon air passage 140 of the air conditioning case 110,
A dome plate 147 spaced apart from the rotary shaft 146 in the radial direction is provided in the back discharge housing 120 to adjust the opening degree of the upright face vent 121 and the back bottom vent 122. A rotary type door 145 is installed,
The dome plate 147 of the stick mode door 145 includes a face portion 147a formed at a position corresponding to the face face vent 121 and a face portion 147a formed at a position corresponding to the face floor vent 122 And a floor portion 147b. The face portion 147a and the floor portion 147b are formed to be stepped on each other in the radial direction of the rotation shaft 146,
The face portion 147a of the dome plate 147 is formed with a larger radius than the floor portion 147b with respect to the rotation axis 146. The floor portion 147b of the dome plate 147 is rotatably supported by the rotation shaft 146 And is smaller in radius than the face portion 147a,
The cold air introduced into the back discharge housing 120 passes through the relatively large portion of the inside of the face portion 147a and is guided toward the upright face vent 121. The warm air flows toward the outside of the floor portion 147b Wherein a relatively large amount of air is guided to the upright floor vent 122 so as to reduce a temperature difference between the upright face vent 121 and the upright floor vent 122. delete The method according to claim 1,
Wherein the face portion 147a is formed at the center in the axial direction of the star mode door 145 and the floor portion 147b is formed at both sides of the face portion 147a. The method of claim 3,
Wherein a width W1 of the face portion 147a is formed to be equal to a width W2 of the facing face vent 121. [ The method of claim 3,
The top face vent 121 and the top floor vent 122 are spaced apart from each other at a predetermined angle in a rotating direction of the top mode door 145. The top face vent 121 is formed at a predetermined angle with respect to the top floor vent 122, Wherein the airbag is formed at an upper portion of the vehicle.

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