KR101859518B1 - Air conditioner for vehicle and its control method - Google Patents

Abstract

The present invention relates to an air conditioner for a vehicle, and more particularly, to a position for opening or closing the rear moon airway in a maximum cooling / heating mode in an air conditioner case provided with a rear on / off door on a rear moon airway Off door is operated so as to operate the on-off-off door to a position where the amount of the cold airflow is reduced as compared with the maximum opening time of the rear moon air passage in the deep sea temperature control mode, A resistance is given to the rear moon airway by the air resistance of the heater core to allow a relatively large amount of cold air to pass through the rear moon airway And to improve the comfort of passengers by improving dissatisfaction with the controlled temperature .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air conditioner,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner and a control method thereof. More particularly, the present invention relates to an air conditioner for a vehicle, Off door is operated to a position where the amount of cool air is reduced at the time of maximum opening of the rear moon air passage when the rear moon air temperature control mode is in operation and the control of the vehicle air conditioner is controlled ≪ / RTI >

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.

Further, on the exit side of the rear moon air passage 20, a back air outlet 21 for discharging air to the back side is formed.

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, and then discharged into the upright space through the upright air outlet 21, thereby cooling and heating up to the upright space.

2, the conventional triple zone air conditioning system 1a includes a warm air passage P2 passing through the heater core 3 and a rear moon air passage 20 passing through the heater temperature control door 25, The hot air passing through the warm air passage P2 and the cold air passing through the rear moon air passage 20 are mixed and discharged to the back side to adjust the temperature of the back stone. There is a problem that a relatively large amount of cold air passes through the rear moon air passage 20 due to the ventilation resistance of the heater core 3 on the hot air passage P2 side,

SUMMARY OF THE INVENTION [0008] In order to solve the above problems, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an air conditioning system, Off door is operated so as to operate the on-off-off door to a position where the amount of the cold airflow decreases from the maximum opening time of the rear moon air passage in the deep sea temperature control mode, A resistance is provided on the side of the rear moon air passage by the air resistance of the heater core to prevent a relatively large amount of cold air from passing through the rear moon air passage in the rear air temperature control mode in which both the warm air passage and the rear moon air passage are opened. And thereby improving the comfort of passengers by improving dissatisfaction with the controlled temperature, and a control method therefor There in the ball.

According to an aspect of the present invention, there is provided an air conditioner comprising: an air conditioning case having an all-steel air passage having a cold and warm air passage, a rear moon air passage branched from the air chamber, And a heater core installed on the warm air passage, wherein the air outlet is provided on an exit side of the rear moon air passage of the air conditioner case, and further comprises a top face vent and a bottom floor vent so as to discharge air to the back side. And a ventilation mode door installed inside the airtight casing for adjusting the opening degree of the upright face vent and the bottom floor vent, and a ventilation mode door provided on the front side of the heater core in the air conditioning case, A back stone temperature control door for controlling an inflow amount of the rear moon air passage and the warm air passage of the vehicle, An auxiliary auxiliary temperature control door provided at a rear side of the heater core in the air conditioning case to regulate an inflow amount of the back discharge housing of the air that has passed through the heater core and an auxiliary auxiliary temperature control door provided inside the rear mint air passage, And a control unit for variably controlling the door on / off door to a specific position according to the rear air conditioning mode to variably control the amount of cold air passing through the rear moon air passage.

The control method for a vehicle air conditioning system according to claim 1, further comprising: a first step of determining whether the rear seat air conditioning mode is the maximum seat cooling mode, the maximum seat heating mode, the seat back off mode, As a result of the determination in step 1, if the maximum cooling mode is in the maximum cooling mode, the second step of operating the on-off-off door to the maximum opening position of the rear moon air passage is proceeded. Off mode, the third step of operating the back-on-off door to a position for closing the rear-moon air passage is performed, and if it is determined in the first step that the mode is the back- And a fourth step of operating the door-on-off door at a predetermined angle to a position where the amount of cold air is decreased by a predetermined amount when the door is opened.

In the present invention, in the air conditioner case in which the rear door open / close door is provided in the rear door air passage, the rear door on / off door is operated to open or close the rear door air passage in the maximum cold / Off door is operated to a position where the amount of cold air is reduced at the time of the maximum opening of the rear moon air passage in the mode, the hot air passage passing through the heater core and the rear moon air passage A resistance is provided to the rear moon air passage side by the air resistance of the heater core to prevent a relatively large amount of cold air from passing through the rear mason air passage, So that the comfort of the passenger can be improved.

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 graph showing a comparison of the temperature of the exhaust air discharged from the back door according to the position of the conventional temperature control door of the present invention
FIG. 7 is a sectional view showing an all-round cooling mode and a rear cooling mode of a vehicle air conditioner according to the present invention,
FIG. 8 is a sectional view showing an all-over heating mode and a full heating mode of the vehicle air conditioning system according to the present invention,
FIG. 9 is a sectional view showing an all-round mixing mode and a full-time mixing mode of the automotive air conditioner according to the present invention,
10 is a flowchart showing a control method of a vehicle air conditioning system according to the present invention.

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

As shown in the figure, the air conditioning system 100 according to the present invention includes an air inlet 111 at one side and a plurality of omnidirectional air outlets at the other side (outlet side) An air conditioning case 110 having an all-steel air passage 105 having a front air passage P2 and a rear air passage P3 and a rear moon air passage 140 branched from the front air passage 105, An evaporator 101 and a heater core 102 installed on the heater 105 and spaced apart from each other at a predetermined interval in the air flow direction and a heater core 102 installed between the evaporator 101 and the heater core 102, And a door temperature control door 115 for controlling the opening degree of the warm air passages P2 and P3 for passing the heater core 102 through the cold air passage P1.

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, the air conditioning 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 and rear left and right seats can be independently controlled.

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 at a position adjacent to the air inlet 111 of the air conditioner case 110 upstream of the cold air passage P1 and the heater core 102 is connected to the hot air passage 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, while 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 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 radially from the dome plate 146 and has a sealing wall 147a at both ends in the rotational direction to control the opening of the upright face vent 121 and the top floor vent 122, And a pair of side plates 148 connecting both ends of the dome plate 147 with the rotation shaft 146.

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.

In other words, the inlet side of the rear masonry passage 140 is communicated with the hot air passage P2 through the rear side passage of the evaporator 101 and the hot air inlet 135. [

In addition, on the front side of the heater core 102 in the air conditioning case 110, there is provided a door temperature control door 141 for controlling the inflow amount of the rear moon air passage 140 and the warm air passage P2 of air passing through the evaporator 101 And an auxiliary auxiliary temperature control door 142 for controlling an inflow amount of the air passing through the heater core 102 into the upright discharge housing 120 is provided on the rear side of the heater core 102 in the air conditioning case 110 Respectively.

More specifically, the rear temperature control door 141 is installed on the warm air inlet 135 side of the heater core 102 to adjust the opening degree of the rear moon air passage 140 and the warm air inlet 135 do. The heated temperature control door 141 is connected to the heater core 102 through the hot air inlet 135 and the hot air outlet 136 and the hot air passing through the heater core 102 ) Of the cold wind that is bypassed.

The auxiliary auxiliary temperature control door 142 is disposed on the side of the hot air outlet 136 at the rear of the heater core 102 to control the opening degree of the hot air outlet 136. Therefore, the rear auxiliary temperature control door 142 supplies a part of the heated air passed through the heater core 102 to the back discharge housing 120 side.

Meanwhile, the rear auxiliary temperature control door 142 is linked to the rear temperature control door 141 by a link (not shown).

Also, a rear on-off door 143 is installed in the rear masonry passage 140 to control the opening of the rear moon air passage 140.

The backside temperature control door 141, the backside assistance temperature control door 142 and the rear on-off door 143 are formed of a flat type door. That is, the inside of the air conditioner case 110 A rotating shaft rotatably installed on the side surface, and a plate extending in the form of a flat plate on the outer circumferential surface of the rotating shaft.

The control unit 150 controls the amount of the cooling air passing through the rear moon air passage 140 by varying the control of the rear door on / off door 143 to a specific position according to the rear air conditioning mode.

As shown in FIG. 5, the control unit 150 operates the rear on-off door 143 to a position where the rear moon air passage 140 is opened to the maximum in a maximum cooling mode,

Off-off door 143 to a position for closing the rear moon air passage 140 during the maximum heating mode (or during the back-off mode)

Off door 143 is operated at a predetermined angle to a position where the amount of the cold airflow is reduced by a certain amount when the rear moon air passage 140 is opened at the time of the peak temperature control mode.

In the case of adjusting the backside temperature, the backside temperature control door 141 controls the hot air passage P2 through the heater core 102 and the backside air passage 140, The heat resistance of the heater core 102 on the side of the hot air passage P2 makes it possible to increase the amount of the rear moon air passage 140 to a relatively large value by controlling the mixing amount of the cold air and the hot air. The amount of cold air passes.

Therefore, the control unit 150 does not open the rear moon air passage 140 to the rear moon air passage 140 at a maximum, (143) is operated at a predetermined angle.

In other words, when the rear temperature control mode is selected, resistance is given to the rear moon air passage 140 side by the rear door on / off door 143 by the air resistance of the heater core 102 to return to the rear moon air passage 140 It is possible to prevent a relatively large amount of cold air from passing therethrough, thereby improving dissatisfaction with the controlled temperature and improving the comfort of the occupant.

In order to reduce the amount of the cooling air passing through the rear moon air passage 140 to the rear on-off door 143, the controller 150 controls the rear on-off door 143 Off door 143 to a position that is more than 1/2 of the total operating angle of the on-off-off door 143.

That is, as shown in FIG. 5, the rear-off-and-off door 143 is opened from the position where the rear moon air passage 140 is opened at the maximum to the rear moon air passage 140, 2 or more.

In other words, the opening angle? Of the rear on-off door 143 for reducing the amount of cold air passing through the rear moon air passage 140 is smaller than the opening angle? Of the rear on- Off door 143 is equal to or smaller than one half of the total operating angle of the rear-on-off door 143. [

The control unit 150 may variably control the operating angle of the back-on-off door 143 in accordance with the operating angle of the back-side temperature control door 141 in the back-side temperature control mode.

That is, in the above-mentioned temperature control mode, the rear on-off door 143 may be fixed to the specific opening angle? Regardless of the operating angle of the back-side temperature control door 141, The operating angle of the back-on-off door 143 may be varied in proportion to the operating angle of the door 141.

When the operating angle of the rear on-off door 143 is varied in proportion to the operating angle of the rear temperature control door 141, the rear furnace air passage 140 of the rear temperature control door 141 is opened On each decrease, the opening angle? Of the rear-off-off door 143 is reduced.

FIG. 6 is a graph comparing the temperature of the exhaust air discharged from the backside of the present invention with the position of the exhaust temperature control door 141 according to the present invention. In the graph, the evaluation baseline is a section in which a passenger can feel comfort.

In the graph, a relatively large amount of cold air passes through the rear moon air passage 140 due to the air flow resistance of the heater core 102 when adjusting the seaweed temperature in the related art, It can be seen that the temperature of the exhausted air drops below the evaluation reference line at a specific position (temperature control section) of the exhaust pipe 141.

On the other hand, in the case of the present invention, since the back-on-off door 143 is controlled to decrease the amount of the cold air passing through the rear moon air passage 140 through the control unit 150, Is within the evaluation baseline.

Hereinafter, a control method of the air conditioner for a vehicle according to the present invention will be described with reference to FIG.

First, a first step (S1) is performed to determine whether the rear air conditioning mode is the maximum maximum cooling mode, the maximum maximum heating mode, the peer-off mode, and the peak temperature control mode.

As a result of the determination in the first step S1, if the maximum cooling mode is in the maximum cooling mode, the second step S2 of operating the on-off-off door 143 to a position for opening the rear-

The third step S3 of operating the rear on-off door 143 to a position closing the rear moon air passage 140 if it is determined in the first step S1 that the maximum heating mode or the back- However,

As a result of the determination in the first step S1, if the back-side temperature control mode is selected, the back-on-off door 143 is operated at a predetermined angle to a position where the amount of cold air is decreased by a certain amount And proceeds to the fourth step S4.

As described above, since a relatively large amount of cold air passes through the rear moon air passage 140 due to the air resistance of the heater core 102 on the hot air passage P2, the hot air passage A resistance is given to the rear moon air passage 140 side by the back door on the door 143 by a ventilation resistance of the heater core 102 on the side of the rear moon air passage 102 to reduce the amount of cold air passing through the rear moon air passage 140 .

In the fourth step S4, the total operating angle of the rear-on-off door 143 is adjusted to reduce the amount of the cooling air passing through the rear moon air passage 140 to the rear on- Off < / RTI > door 143 to a position equal to or greater than < RTI ID =

That is, as shown in FIG. 5, the rear-off-and-off door 143 is opened from the position where the rear moon air passage 140 is opened at the maximum to the rear moon air passage 140, 2 or more.

In other words, the opening angle? Of the rear on-off door 143 for reducing the amount of cold air passing through the rear moon air passage 140 is smaller than the opening angle? Of the rear on- Off door 143 is equal to or smaller than one half of the total operating angle of the rear-on-off door 143. [

In the fourth step S4, the rear on-off door 143 may be fixed to the specific opening angle? Regardless of the operating angle of the back temperature control door 141, Off door 143 in accordance with the operating angle of the door 141, as shown in FIG.

When the operating angle of the rear on-off door 143 is varied in proportion to the operating angle of the rear temperature control door 141, the rear furnace air passage 140 of the rear temperature control door 141 is opened On each decrease, the opening angle? Of the rear-off-off door 143 is reduced.

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-pass cooling mode and deep-cooling mode (Fig. 7)

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. 7, .

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).

Meanwhile, the gentle mode door 145 closes the gentle floor vent 122.

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 (Figure 8)

In the front heating mode and the back heating mode, as shown in FIG. 8, 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).

Meanwhile, the gentle mode door 145 closes the gentle face vent 121.

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 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. Whole-course mixing mode and full-course mixing mode (FIG. 9)

9, in order to control the temperature of the all seats to a proper temperature, the above-mentioned all-round temperature control door 115 is connected to both the cold air passage P1 and the mouths P2 and P3 of the hot air passage .

In addition, in order to control the gullet to an appropriate temperature, the gullet temperature control door 141 opens both the back-stoker air passage 140 and the warm air inlet 135, 136 are opened.

In addition, the rear-on-off door 143 is operated at a position more than ½ of the entire operating angle of the rear-on-off door 143 in order to reduce the amount of cold air passing through the rear moon air passage 140 do.

On the other hand, the starboard mode door 145 closes the top floor vent 122, but this can be changed according to the air discharge mode.

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, The hot air outlet 136 is connected to the back discharge housing 120 through the heater core 140 and the hot air outlet 136 is changed to the hot air in the process of passing through the heater core 102 through the hot air inlet 135, And then mixed with the cool air, and then supplied to the console box side to control the open space at an appropriate temperature.

In the above process, a ventilation resistance is applied to the hot air passage P2 due to the heater core 102, and the rear moon air passage 140 is subjected to ventilation resistance due to the rear door on / off door 143, The ventilation resistance is balanced so that a relatively large amount of cold air is prevented from passing through the rear moon air passage 140, and the dissatisfaction with the controllability of the hot air temperature is improved, thereby improving the comfort of the occupant.

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
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 150:

Claims (9)

delete An air conditioning case 110 in which an all-steel air passage 105 having cold and warm air passages P1, P2 and P3 and a rear moon air passage 140 branched from the pre-air passage 105, (101) installed on the upstream side of the cold air passage (P1) in the air conditioner (110) and a heater core (102) provided on the hot air passage (P2)
A seawater discharge housing 120 provided at the outlet side of the rear moon shaft passage 140 of the air conditioning case 110 and having a seawater face vent 121 and a seawater floor vent 122 for discharging air to the seawater side, ,
A scrubbing mode door 145 installed inside the scrubbing and discharging housing 120 to adjust the opening of the scrubbing face vent 121 and the scrubbing floor vent 122,
A door temperature control door (not shown) disposed on the front side of the heater core 102 in the air conditioning case 110 to control the inflow amount of the air passing through the evaporator 101 to the rear moon air passage 140 and the hot air passage P2 141,
An auxiliary auxiliary temperature control door 142 installed on the rear side of the heater core 102 in the air conditioning case 110 to regulate an inflow amount of the air passing through the heater core 102 into the upright discharge housing 120,
Off door 143 installed inside the rear masonry passage 140 to adjust the opening of the rear masonry passage 140,
And a control unit (150) for variably controlling the rear on / off door (143) to a specific position according to the rear air conditioning mode to variably control the amount of cold air passing through the rear moon air passage (140)
The control unit 150,
In the maximum cooling mode, the rear on-off door 143 is operated to a position where the rear moon air passage 140 is opened to the maximum,
In the maximum heating mode, the rear on-off door 143 is operated to close the rear moon air passage 140,
Off door 143 to a position where the amount of cold air is decreased by a certain amount when the rear moon air passage 140 is opened at a maximum when the rear moon temperature control mode is set. 3. The method of claim 2,
The controller 150 controls the fan-on / off door 143 to operate at a position of 1/2 or more of the total operating angle of the fan-on / off door 143 to decrease the amount of cold wind Wherein the air conditioner comprises: 3. The method of claim 2,
Wherein the control unit (150) variably controls the operating angle of the rear on / off door (143) in accordance with the operating angle of the rear temperature control door (141) in the rear temperature control mode. 5. The method of claim 4,
Wherein an opening angle (?) Of the rear on-off door (143) also decreases when the opening angle of the rear moon air passage (140) of the rear temperature control door (141) decreases. An air conditioning case 110 in which an all-steel air passage 105 having cold and warm air passages P1, P2 and P3 and a rear moon air passage 140 branched from the pre-air passage 105, (101) installed on the upstream side of the cold air passage (P1) in the air conditioner (110) and a heater core (102) provided on the hot air passage (P2)
A seawater discharge housing 120 provided at the outlet side of the rear moon shaft passage 140 of the air conditioning case 110 and having a seawater face vent 121 and a seawater floor vent 122 for discharging air to the seawater side, ,
A scrubbing mode door 145 installed inside the scrubbing and discharging housing 120 to adjust the opening of the scrubbing face vent 121 and the scrubbing floor vent 122,
A door temperature control door (not shown) disposed on the front side of the heater core 102 in the air conditioning case 110 to control the inflow amount of the air passing through the evaporator 101 to the rear moon air passage 140 and the hot air passage P2 141,
An auxiliary auxiliary temperature control door 142 installed on the rear side of the heater core 102 in the air conditioning case 110 to regulate an inflow amount of the air passing through the heater core 102 into the upright discharge housing 120,
Off door 143 installed inside the rear masonry passage 140 to adjust the opening of the rear masonry passage 140,
And a control unit (150) for variably controlling the open / close door (143) to a specific position in accordance with the rear seat air conditioning mode to variably control the amount of cold air passing through the rear moon air passage (140) In this case,
A first step (S1) of judging whether the rear seat air conditioning mode is the maximum seat air conditioning mode, the maximum seat heating mode, the seat back air conditioning mode,
As a result of the determination in the first step S1, if the maximum cooling mode is in the maximum cooling mode, the second step S2 of operating the on-off-off door 143 to a position for opening the rear-
The third step S3 of operating the rear on-off door 143 to a position closing the rear moon air passage 140 if it is determined in the first step S1 that the maximum heating mode or the back- However,
As a result of the determination in the first step S1, if the back-side temperature control mode is selected, the back-on-off door 143 is operated at a predetermined angle to a position where the amount of cold air is decreased by a certain amount And a fourth step (S4) is carried out. The method according to claim 6,
Wherein the fourth step (S4) activates the on-off-off door (143) to a position more than 1/2 of the total operating angle of the back-on-off door (143). The method according to claim 6,
Wherein the fourth step (S4) variably controls the operating angle of the rear on / off door (143) in accordance with the operating angle of the rear temperature control door (141). 9. The method of claim 8,
And controls the opening angle (?) Of the rear on-off door (143) to decrease when the opening angle of the rear moon air duct (140) of the rear temperature control door (141) .

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