KR20130124687A - Air conditioner for vehicle - Google Patents

Abstract

The present invention relates to an air conditioner for a vehicle. More specifically, an accommodation unit is formed in an outlet of a hot air path inside an air conditioning case in order to accommodate a door unit on one side of a temperature control door. While the temperature control door rotates in a maximum heating mode at a predetermined angle, whole cross-sectional area of the outlet of the hot air path can be used as the door unit does not reduce a cross-sectional area of the hot air path. Thereby development periods for improving temperature controllability can be reduced, and dissatisfaction of the temperature controllability caused by a tolerance of each component for operating the temperature control door can be reduced by setting operation angle by the temperature in a heating mode operating section of the temperature control door to be larger than the existing angle. The door unit on one side of the temperature control door is operated in the accommodation unit in the heating mode operation section so that the air conditioner for the vehicle can solve a problem in which hot air stays due to the door unit.

Description

Automotive air conditioning unit {AIR CONDITIONER FOR VEHICLE}

The present invention relates to a vehicle air conditioner, and more particularly, by forming a receiving portion to accommodate one side door portion of the temperature control door at the outlet side of the hot air passage in the air conditioning case, the temperature control door is from the maximum heating mode position to a certain angle It relates to a vehicle air conditioner so that the door portion does not reduce the cross-sectional area of the hot air passage during rotation.

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).

 1 is a cross-sectional view illustrating a conventional triple zone air conditioner, in which the air inlet 11 is formed at one side and the opening degree is adjusted by mode doors 16a, 16b, and 16c on the other side, respectively. 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; Is connected to the air inlet 11 of the air conditioning case 10 is composed of a blower (not shown) for blowing the inside or outside air.

And, between the evaporator 2 and the heater core 3, the degree of opening of the cold air passage (P1) for bypassing the heater core (3) and the warm air passage (P2, P3) for passing through the heater core (3) The seat temperature adjusting door 15 is installed to adjust the temperature of the seat space by adjusting the seat temperature.

The front seat temperature control door 15 is a center pivot type door in which door parts 15a and 15b are formed on both sides of the rotation shaft 15c, and the first door part 15a measures the opening degree of the cold air passage P1. The second door part 15b adjusts the opening degree of the outlet P3 side of the warm air passage.

Further, the rear seat air passage 20 is formed at the lower side of the heater core 3 in the air conditioning case 10 to supply air to the rear seat space.

At this time, the rear-seat air passage 20 is installed on the inlet side of the warm air passage (P2, P3) and the rear-seat temperature control door 25 for adjusting the opening degree of the rear-seat air passage (20), the heater core (3) The rear side of the rear seat auxiliary temperature control door 26 for supplying the warm air to the rear air passage 20 is installed, the rear seat mode door 27 is installed on the outlet side of the rear air passage 20.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is operated, the seat temperature control door 15 opens the cold air passage P1 and the outlet P3 of the hot air passage. Will be closed. Accordingly, the air blown by the blower not shown is heat-exchanged with the refrigerant flowing through the evaporator 2 while passing through the evaporator 2 to be changed to cold, and then the mixing area (P1) through the cold air passage (P1). The vehicle through the vent opened by the mode doors 16a, 16b, and 16c according to a predetermined air discharge mode (vent mode, bi-level mode, floor mode, mix mode, defrost mode). By discharging to the interior seat space, cooling of the seat space is performed.

In addition, when the maximum heating mode is activated, the all seat temperature control door 15 closes the cold air passage (P1) and opens the outlet (P3) of the hot air passage. Accordingly, the air blown by the blower not shown is heat exchange with the coolant flowing through the inside of the heater core 3 while passing through the heater core 3 through the hot air passage (P2) after passing through the evaporator (2) After turning into warm air, it flows toward the mixing area MC, and is then discharged to all seat spaces inside the vehicle through vents opened by the mode doors 16a, 16b, and 16c according to a predetermined air discharge mode. Heating of the space is carried out.

On the other hand, during the rear stone space temperature control, the cold air passing through the rear stone air passage 20 by the rear stone temperature control door 25 and the rear stone auxiliary temperature control door 26, and passes through the warm air passage (P2). After that, the mixing amount of the warm air joining the rear air passage 20 is controlled, and then discharged to the rear seat space through the duct connected to the console box in the cabin, thereby cooling and heating to the rear seat space.

However, in the conventional air conditioner, the first door part 15a of the seat temperature control door 15 closes the cold air passage P1 in the maximum heating mode, and the second door part 15b of the air conditioner The outlet P3 is opened, and when temperature is controlled, the first door part 15a of the all seat temperature control door 15 gradually opens the cold air passage P1 and the second door part 15b. The temperature control is made while slowly closing the outlet (P3) of the hot air passage.

At this time, when the temperature is adjusted in the maximum heating mode position of the seat temperature control door 15, the operating angle (V1) of the first door portion (15a) and the operating angle (V2) of the second door portion (15b) as shown in FIG. The cross-sectional area of the outlet P3 of the warm air passage is reduced from F1 to F2 by the second door part 15b.

As such, since the second door part 15b of the seat temperature adjusting door 15 reduces the cross-sectional area of the outlet P3 of the hot air passage, it is necessary to subdivide the operating angle for each temperature in the heating mode operating section. There is a problem that excessive development period of the air conditioner (1) for improving the controllability.

In addition, in the heating mode operating section, the seat temperature control door 15 is operated at a minute angle for each temperature. When the angle of operation of the seat temperature temperature control door 15 becomes fine, the seat temperature temperature control door 15 is operated. In addition, manufacturing and assembling tolerances of components (actuators, levers, etc.) to be added have a problem that temperature control becomes more difficult and temperature controllability becomes unsatisfactory.

In addition, since the second door unit 15b reduces the cross-sectional area of the outlet P3 of the hot air passage during the operation of the all seat temperature control door 15 in the heating mode section, the warm air air does not flow smoothly and the second door unit does not flow smoothly. There was also a problem of stagnation by (15b).

An object of the present invention for solving the above problems is to form a receiving portion to accommodate the one side door portion of the temperature control door in the hot air passage exit side in the air conditioning case, the temperature control door rotates from the position of the maximum heating mode to a certain angle While the door portion does not reduce the cross-sectional area of the hot air passage, the entire outlet cross-sectional area of the hot air passage can be used, thereby reducing the development period for improving the temperature controllability, and also in the heating mode operation section of the temperature control door. The operating angle for each temperature can be set larger than that of the related art, thereby reducing the dissatisfaction with the temperature controllability caused by the tolerances of the components for operating the temperature control door. Since it operates in the receiving portion, the warm air is That body problem is to also provide a vehicle air conditioner that can solve.

The present invention for achieving the above object, an air inlet is formed on one side and a plurality of air outlets formed on the other side, the evaporator and the heater is spaced apart from each other at regular intervals in the air flow direction inside the air conditioning case A temperature which is installed between the core, the evaporator and the heater core in the air conditioning case, and the air flow passage through which the air passing through the evaporator bypasses the heater core and the opening degree of the hot air passage passing through the heater core is controlled. In the vehicle air conditioner comprising a control door, the temperature control door is formed on one side of the rotary shaft installed between the evaporator and the heater core in the air conditioning case, and the rotary shaft of the cold air passage and the hot air passage A first door part for adjusting the opening degree of the inlet side and formed on the other side of the rotating shaft; A second door portion is configured to adjust the opening degree of the outlet side of the hot air passage, and on the outlet side of the hot air passage in the air conditioning case, an accommodating portion is formed to expand the hot air passage in the rotational direction of the second door to accommodate the second door portion. The second door part may not reduce the outlet cross-sectional area of the hot air passage while the temperature control door rotates from the position of the maximum heating mode to a predetermined angle.

The present invention, by forming a receiving portion to accommodate the one side door portion of the seat temperature control door at the outlet side of the hot air passage in the air conditioning case, the door portion of the hot air passage while rotating the seat temperature control door from the position of the maximum heating mode to a certain angle Since the cross-sectional area is not reduced, the entire outlet cross-sectional area of the hot air passage can be used, thereby shortening the development period of the air conditioner for improving the temperature controllability.

In addition, the operating angle for each temperature in the heating mode operating section (maximum heating mode position from the initial heating section) of the seat temperature control door can be set larger than the conventional, the temperature due to the tolerance of each component for operating the seat temperature control door Control dissatisfaction can be reduced.

In addition, since the one side door portion of the seat temperature control door operates in the receiving portion in the heating mode operation section, it is possible to solve the problem that the air flowing in the warm air passage is stagnated by the door portion, thereby The air flow can be smoothed.

1 is a cross-sectional view showing a conventional triple zone air conditioner,
Figure 2 is an enlarged cross-sectional view showing a portion of the temperature control door in FIG.
3 is a perspective view showing a vehicle air conditioner according to the present invention,
4 is a cross-sectional view showing a front seat cooling mode and a rear seat cooling mode of the vehicle air conditioner according to the present invention;
5 is a cross-sectional view showing a front seat heating mode and a rear seat heating mode of the vehicle air conditioner according to the present invention;
6 is a cross-sectional view showing a front seat mixing mode and a rear seat mixing mode of the vehicle air conditioner according to the present invention;
FIG. 7 is an enlarged cross-sectional view illustrating a portion of the temperature control door of FIG. 6.

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

As shown, the vehicle air conditioner 100 according to the present invention, the air inlet 111 is formed on one side and the air conditioning case 110 formed with a plurality of air outlets on the other side (outlet side) and the air conditioning case ( The evaporator 101 and the heater core 102 and the evaporator 101 and the heater core 102 are installed between the evaporator 101 and the heater core 102 and spaced apart from each other in the air flow direction. It comprises a cold air passage (P1) for bypassing the heater core 102 and the temperature control door 115 for adjusting the opening degree of the hot air passage (P2, P3) to pass through the heater core (102).

Here, the temperature control door 115 is a seat temperature control door 115.

The air conditioning case 110 includes left and right cases 110a and 110b assembled to each other, and an integrated lower case 110c assembled to the lower sides of the left and right cases 110a and 110b.

In addition, a mixing area MC is formed on the upstream side of the plurality of air discharge ports in which cold air passing through the cold air passage P1 and hot 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 side of the heater core 102, and more specifically, extends from the upper end side of the heater core 102 to the position of the rotation shaft 115c of the seat temperature adjusting door 115. do.

In addition, an air inlet 111 of the air conditioning case 110 is provided with a blower (not shown) for introducing air or air into the air conditioning case 110.

The plurality of air discharge ports, the defrost vent 112 for discharging the air toward the windshield of the vehicle, the face vent 113 for discharging the air toward the face of the seat occupant, and the air to the foot of the passenger seat Floor vents 114 are formed in turn.

In addition, the vents 112 to 114 are opened and closed by a plurality of mode doors 116, and the opening degree thereof is adjusted.

Meanwhile, a partition wall 117 is formed between the outlet P3 of the warm air passage and the floor vent 114, and the air flowing to the outlet P3 of the warm air passage by the partition wall 117. Air flowing to the floor vent 114 is partitioned.

The evaporator 101 is installed 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 warm 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.

On the other hand, the structure of the heater core 102 in which the coolant flows briefly, the upper and lower tanks (102a, 102b) and the upper and lower tanks (102a, 102b) that are spaced apart from each other and are connected to the cooling water pipes. 102b) and a plurality of heat dissipation fins interposed between the plurality of tubes.

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

In addition, the seat temperature adjusting door 115 is a center pivot type door, a rotating shaft 115c installed between the evaporator 101 and the heater core 102 in the air conditioning case 110, The first door part 115a which is formed at one side of the rotating shaft 115c and adjusts the opening degree of the inlet P2 side of the cold air passage P1 and the warm air passage, and the other side of the rotary shaft 115c as a center. The second door part 115b is formed to adjust the opening degree of the outlet P3 side of the warm air passage.

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 unit 115a closes the cold air passage P1 and opens the inlet P2 of the hot air passage, and the second door unit 115b exits the hot air passage. P3) is opened.

In addition, an outlet P3 of the warm air passage is extended in the rotational direction of the second door portion 115b in the air conditioning case 110 to accommodate the second door portion 115b. The receiving unit 150 is formed.

Therefore, the second door part 115b does not reduce the cross-sectional area of the outlet P3 of the hot air passage while the front seat temperature control door 115 rotates from the maximum heating mode position to a predetermined angle.

Referring to FIG. 7, when the front seat temperature control door 115 rotates at a predetermined angle from the maximum heating mode position, the operating angle V3 of the first door part 115a and the operating angle of the second door part 115b ( V4) becomes the same, and at this time, when looking at the exit P3 cross-sectional area F4 of the hot air passage, which is changed according to the operating angle V4 of the second door part 115b, the second door part 115b It can be seen that up to a certain operating angle (V4), even if the cross-sectional area (F4) is changed does not reduce than the cross-sectional area F3 of the exit (P3) of the existing hot air passage.

As such, the second door part 115b does not reduce the cross-sectional area of the outlet P3 of the warm air passage while the front seat temperature control door 115 rotates from the maximum heating mode position to a predetermined angle. The entire cross-sectional area can be used, thereby shortening the development period of the air conditioner 100 for improving temperature controllability.

In addition, since the cross-sectional area of the outlet P3 of the hot air passage is not reduced even when the front seat temperature control door 115 rotates from the maximum heating mode position to a predetermined angle, the heating mode initial operation of the front seat temperature control door 115 is performed. The operating angle for each temperature in the section can be set larger than the conventional one, and this can reduce the dissatisfaction of temperature control due to the manufacturing and assembly tolerances of each component (actuator, lever, etc.) for operating the seat temperature adjusting door 115. .

In addition, since the second door part 115b of the seat temperature control door 115 rotates in the accommodation part 150 in the heating mode operation section, air flowing through the warm air passages P2 and P3 The problem of stagnation by the second door part 115b can also be solved, and thus the air flow in the warm air passages P2 and P3 can be smoothed.

The accommodating part 150 is formed between the rotary shaft 115c of the seat temperature adjusting door 115 and the heater core 102, and is formed below the upper end of the heater core 102. It is preferable.

That is, the section between the rotary shaft 115c and the heater core 102 in the downward direction of the partition wall 119 formed from the upper end of the heater core 102 to the position of the rotary shaft 115c of the seat temperature control door 115 is downward. To be recessed to form the receiving portion 150.

At this time, the receiving portion 150 is formed adjacent to one side of the upper tank (102a) provided in the heater core (102). That is, by forming the accommodating part 150 in a dead space portion of one side of the upper tank 102a, the air flow flowing through the warm air passages P2 and P3 is not disturbed.

On the other hand, the rotating shaft 115c of the seat temperature control door 115 is installed adjacent to the lower end of the outlet (P3) of the hot air passage, that is, the rotating shaft 115c is adjacent to the end of the partition wall 119 Since it is installed, the receiving portion 150 is formed below the rotary shaft 115c.

In addition, the rear seat air passage 140 is formed at the lower side of the heater core 102 in the air conditioning case 110.

The rear seat air passage 140 is partitioned through the warm air passages (P2, P3) and the partition wall 144, by supplying cold and hot air to the rear seat space through a console box (not shown) in the vehicle cabin Rear seat independent cooperation will be carried out.

The inlet of the rear seat air passage 140 is formed to communicate with the downstream (rear side) passage of the evaporator 101, the outlet of the rear seat air passage 140 is in communication with the rear seat discharge housing 120 to be described later. The rear seat discharge housing 123 is connected through a console box (not shown) and a duct (not shown) in the vehicle cabin.

In addition, the rear seat air vent 140 has a rear seat vent vent 121 for discharging air passing through the rear seat air passage 140 toward the rear seat occupant's face. , A rear seat vent 122 for discharging toward the foot occupant's foot is formed.

The rear mode door 145 is rotatably installed in the rear seat discharge housing 120 to selectively open and close the rear seat face vent 121 and the rear seat vent 122.

At this time, the rear seat mode door 145 is rotatably installed on both side surfaces of the rear seat discharge housing 120.

In addition, the rear seat vent 121 is formed at the center of the rear seat discharge housing 120 in the vehicle width direction, and the rear seat vent 122 is formed at both sides of the rear seat discharge housing 120. In this case, the rear seat face vent 121 and the rear seat vent 122 are formed at different angles at the center of rotation of the rear seat mode door 145.

Meanwhile, the rear seat mode door 145 is configured as a dome type door.

In addition, the partition wall 144 partitioning the warm air passages P2 and P3 and the rear stone air passage 140 communicates the front air passage of the rear air passage 140 with the heater core 102. A hot air outlet 135 is formed to communicate the hot air inlet 135 with the rear hot air passage of the heater core 102 and the rear seat discharge housing 120.

In addition, the warm air inlet 135 side, the rear seat air passage 140 and the rear seat temperature control door 141 for adjusting the opening degree of the warm air inlet 135 is installed, the rear seat temperature control door 141, The mixed amount of the warm 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-seat air passage 140 Will be adjusted.

In addition, the rear wind auxiliary temperature control door 142 is installed on the hot air outlet 136 side to adjust the opening degree of the hot air outlet 136 to supply the warm air passing through the heater core 102 to the rear seat discharge housing 120 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, in the rear seat air passage 140, the rear seat on-off door 143 is installed to turn on and off the rear seat air passage 140.

In addition, the air conditioner case 110 is provided with a separator 118 for dividing the inside into left and right sides to independently control the temperature of the front left and right spaces and the rear left and right spaces.

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 deep mixing mode will be described.

end. All seat cooling mode and back seat cooling mode (Fig. 4)

In the front seat cooling mode and the rear seat cooling mode, as shown in Figure 4, the front seat temperature control door 115 opens the cooling air passage (P1) and closes the entrance and exit (P2, P3) of the warm air passage for cooling the front seat. .

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 blower is changed to cold air in the process of passing through the evaporator 101, and part of the air is discharged to the air outlet through the cold air passage P1, and thus all seats are seated. To cool the space,

Some are supplied to the console box side through the rear seat air passage 140 to cool the rear seat space.

On the other hand, the air passing through the rear seat air passage 140 is changed in the flow direction by the rear seat mode door 145 in the rear seat discharge housing 120 is selectively supplied to the face or foot of the rear seat occupant, 4 illustrates a case in which the rear seat mode door 145 opens the rear seat face vent 121.

I. Front seat heating mode and rear seat heating mode (Fig. 5)

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. 5 .

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.

Therefore, the air blown into the air conditioning case 110 through the air blowing device passes through the evaporator 101, and a part of the air that has passed through the evaporator 101 passes through the warm air passages P2 and P3 In the process of passing through the heater core 102, the hot air is changed into a hot air, and the hot air is discharged to the air outlet so as to heat the full-

A part of the rear-air air passage 140 is introduced into the warm air passage through the hot air inlet 135, and then the hot air outlet 136 after being changed to the warm air in the process of passing through the heater core 102. Discharge into the rear seat discharge housing 120 of the outlet air passage 140 through the), and is continuously supplied to the console box side to heat the rear seat space.

On the other hand, the air passing through the rear seat discharge housing 120 of the lower case 120 is switched to the flow direction by the rear seat mode door 145 is selectively supplied to the face or foot of the rear seat occupant, in FIG. The case in which the rear seat mode door 145 opens the rear seat vent 122 is illustrated.

All. Front and rear mixing mode (Fig. 6)

In the front seat mixing mode and the rear seat mixing mode, as shown in FIG. 6, the front seat temperature adjusting door 115 has both the cold air passage P1 and the inlet / outlets P2 and P3 of the hot air passage. Open.

In addition, the rear stone on-off door 143 opens the rear stone air passage 140 to control the rear stone at an appropriate temperature, and the rear stone temperature control door 141 opens the rear stone air passage and the hot air inlet 135. All open, and the rear seat auxiliary temperature control door 142 also opens the hot air outlet (136).

In addition, the air conditioner is activated to circulate cool refrigerant in the evaporator 101, the hot engine coolant is circulated in the heater core (102).

Therefore, the air blown into the air conditioning case 110 through the blower is changed to cold air in the process of passing through the evaporator 101, and part of the cold air passing through the evaporator 101 is a cold air passage (P1). After the flow through the mixing zone (MC), and part of the flow through the heater core 102 through the hot air passage (P2, P3) is converted to hot air and flows into the mixing zone (MC) and mixed with cold air It is discharged to the air outlet to control the seat space at an appropriate temperature,

In addition, some of the cold air passing through the evaporator 101 is introduced into the inlet of the rear air passage 140, some of the cold air introduced into the inlet of the rear air passage 140 is the rear air passage. After flowing through the 140 to the rear seat discharge housing 120, a part is changed to the warm air in the process of passing through the heater core 102 through the hot air inlet 135 after the hot air outlet 136 rear seat discharge housing 120 After flowing to the side is mixed with cold air is supplied to the console box side to control the rear seat space to the appropriate temperature.

Meanwhile, in the all seat mixing mode as illustrated in FIG. 6, the first door part 115a of the seat temperature adjusting door 115 opens both the cold air passage P1 and the inlet P2 of the warm air passage, and the second door. The door portion 115b opens the outlet P3 of the warm air passage, wherein the second door 115b is positioned in the same line as the upper end of the heater core 102 so that the outlet P3 of the warm air passage passes. Since the cross-sectional area is not reduced, it is advantageous for temperature controllability and the air flowing through the warm air passages (P2, P3) flows smoothly without stagnation.

100: air conditioner 101: evaporator
102: heater core 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 part 116: mode door
117: partition wall 118: separator
119:
120: Teflon discharge housing 121: Tread face vent
122: Hollow floor vent
135: hot air inlet 136: hot air outlet
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: Drum mode door 150:

Claims (5)

An air inlet 111 is formed on one side and the air conditioning case 110 formed with a plurality of air outlets 112, 113, 114 on the other side,
An evaporator 101 and a heater core 102 installed in the air conditioning case 110 at a predetermined interval from each other in an air flow direction;
The cold air passage (P1) is installed between the evaporator 101 and the heater core 102 in the air conditioning case 110 and the air passing through the evaporator 101 bypasses the heater core 102 and In the vehicle air conditioner comprising a temperature control door 115 for adjusting the opening degree of the hot air passage (P2, P3) to pass through the heater core 102,
The temperature control door 115 is formed on one side of the rotary shaft 115c installed between the evaporator 101 and the heater core 102 in the air conditioning case 110 and the rotary shaft 115c. The first door portion 115a for adjusting the opening degree of the cold air passage P1 and the inlet P2 of the hot air passage and the other side of the rotary air shaft 115c are formed on the other side, It is composed of a second door portion 115b for adjusting,
At the side of the warm air passage outlet P3 in the air conditioning case 110, an accommodating part 150 is formed to accommodate the second door portion 115b by extending the warm air passage in the rotational direction of the second door portion 115b. ,
The second door unit 115b does not reduce the cross-sectional area of the outlet P3 of the warm air passage while the temperature control door 115 rotates from the position of the maximum heating mode to a predetermined angle. The method of claim 1,
The accommodating part 150 is a vehicle air conditioning apparatus, characterized in that formed between the rotary shaft (115c) of the temperature control door 115 and the heater core (102). 3. The method of claim 2,
The accommodation unit 150, the vehicle air conditioner, characterized in that formed below the top of the heater core (102). The method of claim 3, wherein
The accommodating part 150 is a vehicle air conditioning apparatus, characterized in that formed adjacent to one side of the upper tank (102a) provided in the heater core (102). The method of claim 1,
The rotating shaft 115c of the temperature control door 115 is provided adjacent to a lower end of the outlet P3 of the warm air passage,
The accommodating part 150, the vehicle air conditioner, characterized in that formed below the rotation shaft (115c) of the temperature control door (115).

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