KR101453366B1 - Air conditioner for vehicle - Google Patents

Abstract

The present invention relates to an air conditioner for a vehicle, and more particularly, to a vehicular air conditioner having a bypass passage formed in the upright discharge housing so that a part of air flowing toward each air outlet port side is bypassed to a relative air outlet port side The present invention relates to a vehicle air conditioner which can reduce the temperature difference between the air and the air discharged to the back of the vehicle and thereby improve the comfort of the occupant, .

Description

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

The present invention relates to a vehicle air conditioner, and more particularly, to a vehicular air conditioner having a bypass passage formed inside the upright discharge housing so that a part of the air flowing into each air outlet port side in the upright discharge housing bypasses toward the relative air outlet port To an air conditioner for a vehicle.

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.

The air conditioning case 10 includes an upper case 10a formed by assembling a left case and a right case and a lower case 10b formed in an evaporator 2 at a position where the evaporator 2 is seated in the lower portion of the upper case 10a And a lower case 10b which is separately assembled to prevent leakage of condensed water.

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 conventional triple zone air conditioning system 1a, it is necessary to install the annex mode doors 27 and 28, which operate individually in the upright face vent 21 and the upright floor vent 22, And there is a complicated control problem.

In addition, in the ascending mode in which the seated mode doors 27 and 28 open both the seated face vent 21 and the seated floor vent 22, the cold air is discharged toward the occupant's face, The cold air flow passing through the rear moon air passage 20 in the air passage is largely discharged toward the foot of the passenger through the rear floor vent 22 and the hot air passage P2 is discharged The heated hot air that has passed through the face vent 21 is discharged to the passenger's face in a large amount, resulting in a large difference in temperature between the upper and lower portions, and a high temperature difference between the discharged air and the passenger compartment.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the prior art by forming a bypass passage in the upright discharge housing so that a part of the air flowing to each air discharge outlet side in the upright discharge housing is bypassed to the relative air discharge outlet side, The present invention also provides a vehicle air conditioner which can reduce the number of components and control the air conditioner by using a single gourd mode door. .

According to an aspect of the present invention, there is provided a vehicular air conditioning system including an air conditioning case having an oval seat air passage and a rear moon air passage therein, and an evaporator and a heater core provided inside the air conditioning case, The air conditioning case includes a backward discharge housing formed with a plurality of air discharge openings for discharging air to the back side of the air cleaner case, and a gourd mode door for controlling opening of the plurality of air discharge openings is rotatably installed in the back discharge housing And a bypass passage is formed in the back discharge housing so that a part of the air flowing from the back discharge housing to each of the air discharge openings is bypassed to the relative air discharge opening.

According to the present invention, a bypass passage is formed in the upright discharge housing so that a part of the air flowing toward each air discharge outlet side in the upright discharge housing is bypassed to the relative air discharge outlet side, So that the comfort of the passenger can be improved.

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,
Fig. 5 is a side view of Fig. 4,
FIG. 6 is a view showing the flow of air discharged into a tilted face vent and a tilted floor vent in a forward-bi-level mode in a vehicle air conditioner according to the present invention,
FIG. 7 is a graph showing the difference in temperature of the discharged air between the top face vent and the bottom floor vent according to the position of the backside temperature control door,
FIG. 8 is a cross-sectional view illustrating an all-round cooling mode and a rear cooling mode of the vehicle air conditioning system according to the present invention,
FIG. 9 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. 10 is a cross-sectional view showing an all-round mixing mode and a full-back mixing mode (full-bodied 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.

The air conditioning case 110 includes left and right cases 110a and 110b assembled with each other and an integral lower case 110c assembled to the lower parts of the left and right cases 110a and 110b.

In addition, a mixing region MC is formed on the upstream side of the plurality of pre-stall air outlets so that the cold air passing through the cold air passage P1 and the hot air passing through the hot air paths 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 at 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 passages P2 and P3.

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 oven temperature regulating door 115 includes a rotary shaft installed between the evaporator 101 and the heater core 102 in the air conditioning case 110 and a rotary shaft provided on one side of the rotary shaft, A second door portion 115a formed on the other side of the rotary shaft for adjusting the opening degree of the hot air passage on the outlet P3 side, (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, and the second door portion 115b opens the outlet of the hot air passage P3.

In the air conditioning case 110, a rear moon cylinder path 140 is formed at a lower side of the heater core 102.

The rear moon air passage 140 is partitioned through the hot air passages P2 and P3 and the partition wall 144 and supplies air to the back space through a console box (not shown) We will perform cooperation.

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 And the back discharge housing 120 is connected to a console box (not shown) in a car interior through a duct (not shown).

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 side discharge housing 120 and the back side floor vent 122 is formed at both ends in the width direction of the back side discharge housing 120, The vent 121 and the standing floor vent 122 are formed at different angles from each other with respect to the center of rotation of the steered mode door 145.

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 joystick mode door 145 may be of various types such as a rotary type door or a flat type door and the joystick mode door 145 may be a rotary type door, A rotary shaft 146 rotatably installed in the back discharge housing 120 and a rotary shaft 146 spaced apart from the rotary shaft 146 by a predetermined distance in the radial direction, And a side plate 148 connecting the dome plate 147 and the rotation shaft 146. The dome plate 147 is formed with a sealing wall 147a to adjust the opening degree of the plurality of air outlets 120a.

In addition, although not shown in the drawing, when the star mode door 145 is a flat type door, the rotation shaft is rotatably installed in the back discharge housing 120, And a plate extending and formed to adjust the opening degree of the plurality of air discharge openings.

Hereinafter, the present invention will be described with respect to the case where the annexe mode door 145 is composed of a rotary type door.

A bypass passage 125 is formed in the back discharge housing 120 so that a part of the air flowing from the back discharge housing 120 toward each air discharge opening 120a is bypassed to the relative air discharge opening .

That is, when the seated face vent 121 and the seared floor vent 122 are both opened by the seated mode door 145, the seated exit door 120 The air (warm air) introduced into the back discharge housing 120 through the hot air passage is discharged to the top face vent 121,

At this time, a part of the air flowing in the back discharge floor 120 from the back discharge floor vent 122 is bypassed to the back face vent 121 through the bypass passage 125, A portion of the air flowing toward the fastening face vent 121 in the internal combustion engine 100 is bypassed to the high floor vent 122 side via the bypass passage 125.

Accordingly, since the cool air flows into the passenger compartment 121 through which the hot hot air is discharged, the temperature of the cool air is lowered, so that the temperature of the air discharged toward the passenger's face is lowered.

The hot air flows into the front floor vent 122 through which the cool cold air is discharged through the bypass passage 125 and the temperature rises, so that the temperature of the discharged air is increased toward the foot of the occupant.

Therefore, the upper and lower temperature differences of the air discharged to the back side can be reduced through the back face vent 121 and the back floor vent 122, thereby improving the comfort of the occupant. In addition, in the present invention, by opening and closing the top face vent 121 and the top floor vent 122 using a single annex mode door 145, the number of parts can be reduced and control can be simplified.

FIG. 6 is a graph showing the flow of air discharged to the top face vent 121 and the bottom floor vent 122 in the forward-bi-level mode in the automotive air conditioner according to the present invention. As shown in FIG. 6, The cool air on the side of the upright floor vent 122 flows into the side of the upright face vent 121 through the bypass passage 125 to lower the temperature and to the side of the upright floor vent 122 on which the cool cold air is discharged, It can be seen that the warm air on the side of the back face vent 121 flows through the bypass passage 125 and the temperature rises.

FIG. 7 is a graph showing the temperature difference of discharged air between the top face vent 121 and the bottom floor vent 122 according to the position of the rear temperature control door. As shown in the figure, in the present invention, , It can be seen that the maximum temperature difference of the air discharged to the top face vent 121 and the bottom floor vent 122 due to the bypass of the warm air is reduced as compared with the conventional case.

The bypass passage 125 is spaced apart from the inner wall of the back discharge housing 120 at the side of the air discharge opening 120a by a predetermined distance.

At this time, the inner wall surface of the back discharge housing 120 is partitioned between the upright face vent 121 and the upright floor vent 122, which are the air outlets 120a, A dividing portion 123 for providing a sealing surface with which the sealing wall 147a of the dome plate 147 contacts when the discharge port 120a is closed is protruded.

That is, when the seam mode door 145 closes the seated face vent 121, one side sealing wall 147a of the dome plate 147 comes into contact with one side of the partition 123, The other sealing wall 147a of the dome plate 147 comes into contact with the other side of the partition 123 and seals the same when the seam mode door 145 closes the top floor vent 122.

The bypass passage 125 includes a center bypass passage 126 formed between the partition 123 and the dome plate 147 to have a constant width and a center bypass passage 126 formed between the partition wall 123 and the dome plate 147, And a side bypass passage 127 formed on the side of the air discharge opening 120a and formed to have a constant width on the outside in the radial direction than the maximum operating radius R of the deep mode door 145.

At this time, the center bypass passage 126 is formed inside the maximum operating radius R of the star mode door 145, and the maximum operating radius R of the star mode door 145 and the maximum operating radius R of the dome plate 147 Lt; RTI ID = 0.0 > maximum < / RTI >

Meanwhile, the side bypass passage 127 is formed to have a constant width along the rotational direction outside the maximum operating radius R of the star mode door 145.

The rear partition wall 144 partitioning the warm air passages P2 and P3 and the rear moon air passage 140 allows the rear moon air passage 140 and the front warm air passage of the heater core 102 to communicate with each other A hot air inlet 135 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 front 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 after-cooling mode (Fig. 8)

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 as shown in Fig. 8 .

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).

The bypass mode door 145 closes the top floor vent 122 and the bypass passage 125 is closed by the sealing wall 147a of the dome plate 147. [

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-pass heating mode and full-time heating mode (FIG. 9)

In the front heating mode and the back heating mode, as shown in FIG. 9, the front seat temperature control door 115 closes the cold air passage P1 and opens the inlet and the outlet P2 and P3 of the hot air passage .

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).

The bypass mode door 145 closes the top face vent 121 and the bypass passage 125 is closed by the sealing wall 147a of the dome plate 147. [

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

Therefore, the air blown into the air conditioning case 110 through the blower passes through the evaporator 101, and a part of the air that has passed through the evaporator 101 flows through the warm air passages P2 and P3 In the process of passing through the heater core 102, the hot air is changed into hot air,

A part of the air flows into the rear moon air passage 140 and then flows into the hot air passage through the hot air inlet 135 and then into the hot air in the course of passing through the heater core 102, And then discharged to the feet of the occupant through the back floor vent 122 to heat the upright space.

All. The pre-mixing mode and the deep mixing mode (Fig. 10)

10, in order to control the all seats to an appropriate temperature, the above-mentioned all-round temperature control door 115 is connected to the cold air passage P1 and the inlet and outlet (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 top face vent 121 and the bottom floor vent 122, and the bypass passage 125 is also opened.

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 a cold air through the evaporator 101, and a part of the cold air passing through the evaporator 101 passes through the cold air passage P1 And a part thereof 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 mixed with the cold air The entirety of the seat is discharged to the air outlet,

Some of the cool air having passed through the evaporator 101 flows into the inlet of the rear moon air passage 140. Some of the cold air introduced into the rear moon air passage 140 passes through the rear moon air passage 140, A part of the air flows through the heater core 102 through the heater core 102 and is then converted into hot air and then the heated air outlet 136 is discharged to the back discharge housing 120 .

The cold air flowed into the rearward discharge housing 120 through the rear moon air passage 140 is discharged to the front floor vent 122 and the hot air introduced into the rear discharge housing 120 through the hot air passage A part of the cold air discharged to the front floor vent 122 side is bypassed to the rear face vent 121 side through the bypass passage 125 and the back face vent 121 is discharged to the rear face vent 121, A part of the hot air blown to the upright face vent 121 is bypassed to the upright floor vent 122 through the bypass passage 125 to be mixed with the hot air in the upright floor vent 121, And mixed with cold wind.

As a result, the temperature of the air discharged toward the face of the passengers through the face bath vent 121 is lowered, and the temperature of the air discharged to the feet of the passengers through the passenger floor vent 122 is increased, The upper and lower temperature difference of the air discharged to the occupant is reduced, and the comfort is improved.

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: Hollow floor vent 123:
125: bypass passage 126: center bypass passage
127: Side bypass passage
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 148: side plate

Claims (6)

An air conditioning case 110 having an air duct 105 and a rear air duct 140 inside the air conditioning case 110 and an evaporator 101 and a heater core 102 installed inside the air conditioning case 110 A vehicle air conditioning system comprising:
The air outlet case 120 is provided with a plurality of air outlet ports 120a for discharging air to the back side of the air conditioning case 110 at the outlet side of the rear moon air duct 140,
In the inside of the top discharge housing 120, an annular mode door 145 for controlling the opening of the plurality of air discharge openings 120a is rotatably installed,
The air outlet opening 120a of the upright discharge housing 120 is connected to the air outlet opening 120a of the upright discharge housing 120 so that a part of the air flowing into the air outlet opening 120a side in the upright discharge housing 120 is bypassed to the counter air outlet port side. And a bypass passage 125 formed at a predetermined distance between the inner wall surface of the upper door 120a and the deep mode door 145,
The joystick mode door 145 includes a rotary shaft 146 rotatably installed in the rear discharge housing 120 and a rotary shaft 146 spaced apart from the rotary shaft 146 by a predetermined distance in the radial direction, And a side plate 148 connecting the dome plate 147 and the rotary shaft 146. The rotary type door 147 includes a plurality of air discharge openings 120a formed therein, (Rotary Type Door)
The inner wall surface of the back discharge housing 120 defines a space between the plurality of air discharge openings 120a and a sealing wall 145 of the dome plate 147 at the time of closing the air discharge opening 120a of the forehead mode door 145. [ A partitioning portion 123 for providing a sealing surface with which the valve body 147a contacts,
The bypass passage 125 includes a center bypass passage 126 formed between the partition 123 and the dome plate 147 and a center bypass passage 126 formed between each of the air discharge openings 120a in the top discharge housing 120. [ And a side bypass passage (127) formed on an outer side of the steering mode door (145) in a radial direction than a maximum operating radius (R) of the steering mode door (145). delete delete delete The method according to claim 1,
The plurality of air discharge openings 120a include a seated face vent 121 for discharging air toward a face of a seated occupant and a seated floor vent 122 for discharging air toward a foot of a seated occupant.
The back face vent 121 is formed at the center in the width direction of the back discharge housing 120 and the back floor vent 122 is formed at both ends in the width direction of the back discharge housing 120, (121) and the floor floor vent (122) are formed at angles different from each other with respect to the center of rotation of the seated mode door (145). The method according to claim 1,
The starboard mode door 145 includes a rotary shaft rotatably installed in the rear discharge housing 120 and a plurality of air discharge holes 120a extending in the form of a flat plate on the outer circumferential surface of the rotary shaft to adjust the opening degree of the plurality of air discharge holes 120a Wherein the flat type door is a flat type door.

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