WO2016089094A1 - Left/right independent air conditioning device for vehicle - Google Patents

Abstract

The present invention relates to a left/right independent air conditioning device for a vehicle, more specifically, to an air conditioning device in which an air control door for regulating the opening degrees of first and second passages is provided between a blower and an evaporator so as to control the volume of air to be blown into an air conditioner case, and is provided with a bypass passage in the air volume control door so as to supply a constant air volume to a closed passage even when the air volume control door is at a position at which the door closes the first passage or the second passage. Therefore, a sudden change in the air volume is prevented by widening a control interval (range) of the air volume control door due to a one-stage air volume, which can be implemented even in a state in which the air volume control door closes one side of the passage, and a whistle noise can be reduced due to a constant passage cross-sectional area, which is ensured through the bypass passage even though the passage cross-sectional area becomes narrower during the process of the air volume control door closing one side of the passage.

Description

Independent left and right air conditioner for vehicle

The present invention relates to an independent left and right air conditioner for a vehicle, and more particularly, an air volume adjusting door is installed between a blower and an evaporator to adjust an opening degree of first and second passages. In the air conditioning apparatus for adjusting the air volume, the air volume control door is provided with a bypass passage so that a predetermined air volume can be supplied to the closed passage even when the air flow control door is in a position to close the first passage or the second passage. It relates to a left and right independent air conditioning apparatus for a vehicle.

The air conditioner of the vehicle is a vehicle's interior that is installed for the purpose of securing the driver's front and rear view by removing the frost that is caught in the windshield during rainy or winter seasons. Such an air conditioner is usually equipped with a heating device and a cooling device at the same time to selectively introduce the outside air or bet and then heat or cool the air and blow it into the vehicle interior to cool, heat or ventilate the interior of the vehicle.

According to the independent structure of the blower unit, the evaporator unit and the heater core unit, the air conditioning apparatus includes a three-piece type in which the three units are independently provided, the evaporator unit and the heater core unit are built in the air conditioning case, and the blower unit is Semi-center type is provided as a separate unit, and all three units can be divided into a center mounting type that is built in the air conditioning case.

On the other hand, recently, so-called left and right independent air conditioners have been applied to allow individual air-conditioning to be made by supplying air of different temperatures to the driver's seat and the passenger seat in the vehicle interior according to the needs of the occupants.

1 is a block diagram showing a conventional left and right independent air conditioning apparatus for a vehicle.

As shown, the left and right independent air conditioner 1 for the vehicle, the air inlet 27 is formed on the inlet side and a plurality of air outlets 28 are formed on the outlet side and the air inlet 27 and the inside An air conditioner case 20 in which air passages 26a and 26b are formed so as to communicate the air discharge ports 28, and an evaporator 2 installed at regular intervals on the air passages 26a and 26b. The heater core 3, the partition wall 30 which divides the downstream air passages 26a and 26b of the evaporator 2 into the left and right air passages 26a and 26b, and the air conditioning case 20. It consists of the blower 10 installed in the air inlet 27 side.

Here, the air conditioning case 20 is divided into left and right cases with respect to the separation wall 30 and assembled with each other.

In addition, between the evaporator 2 and the heater core 3, a temperature control door 25 for temperature control is installed on the left and right air passages 26a and 26b, respectively. Each of the air outlets 28 of the furnaces 26a and 26b is provided with a plurality of mode doors 24 to adjust the opening degree of the corresponding air outlets 28 while controlling various air conditioning modes (vent mode, bi-level mode, floor mode, Mix mode, defrost mode).

In addition, the blower 10 is formed inside and outside air inlet (not shown) that is opened and closed by the internal and external air conversion door (not shown) to selectively enter the internal and external air on the upper side, the inside, A blowing fan 15 for blowing air introduced through the outside air inlet to the air conditioning case 20 is installed.

In addition, the front side of the evaporator 2 so as to independently control the air volume of the air blown from the blower 10 to the left and right air passages 26a and 26b of the air conditioning case 20. One air volume control door 40 is installed.

The conventional left and right independent air conditioning apparatus 1 having the above configuration is cooled while the internal air or the outside air introduced into the air conditioning case 20 by the blower 10 passes through the evaporator 2 ( When the air conditioner is turned on), this air is introduced into the left and right air passages 26a and 26b by the separating wall 30 and then selectively heated by the heater core 3, and then each air passage 26a. It is supplied to the driver's seat or passenger seat side of the vehicle interior through each air discharge port 28 formed downstream of 26b to independently cool and heat the driver's seat or passenger seat space of the vehicle interior.

In addition, control of the temperature control door 25 installed on the left and right air passages 26a and 26b of the air conditioning case 20 and the air volume control door 40 installed at the front side of the evaporator 2, respectively. Through this, it is possible to independently control the temperature and the amount of air discharged to the driver's seat and the passenger seat.

However, the conventional left and right independent air conditioning apparatus 1, as shown in Fig. 1, the airflow control door 40 on the front side of the evaporator 2, the cross-sectional area of the air flow passage is non-uniform, the air flow is relatively uneven. ), There was a problem that it is difficult to precisely control the left, right air volume.

In order to solve the above problems, Korean Patent Publication No. 10-2010-0091658 for the applicant of the present invention is disclosed in the independent left and right vehicle air conditioner and control method thereof, briefly described, air in the air conditioning case An airflow control door is installed inside the inlet passage to control the opening degree of the left and right passages, and an auxiliary separation wall is formed between the airflow control door and the evaporator to control the airflow volume controlled by the airflow control door. The right air compartment is to be supplied.

Therefore, by installing the airflow control door at a uniform cross-sectional area of the air flow passage, it is possible to precisely control the left, right airflow.

However, the related art has a problem in that noise such as whistle is generated when the passage cross-sectional area is gradually narrowed when the air volume control door is moved to a position in which the left passage or the right passage is closed.

In addition, when the left passage or the right passage is closed with the air volume control door, the air volume is not supplied to the closed passage, but the maximum singular air volume is supplied to the counter passage. Due to this structure, the air volume control door is left or right. When the passage is closed, the closed passage side cannot be used even with the first stage air volume, so that the control interval for each stage is narrowed when the air volume control door is controlled from the first stage to the seventh stage (for example, the maximum stage) by an actuator. Therefore, there was a problem that the air volume change suddenly occurs when changing the number of stages.

An object of the present invention for solving the above problems is to install an air volume control door for adjusting the opening degree of the first and second passages between the blower and the evaporator to adjust the air volume of the air blown into the air conditioning case In the apparatus, the air volume control by providing a bypass passage in the air volume control door so that a certain air volume can be supplied to the closed passage even when the air volume control door is in a position to close the first passage or the second passage. Since the first stage air volume can be realized even when the door is closed on one side passage, the control interval (section) of the air volume control door can be widened to prevent a sudden air volume change, and the air volume control door closes the one side passage. Even if the passage cross-sectional area is narrowed in the vehicle, a certain passage cross-sectional area is secured through the bypass passage can reduce the whistle noise To provide independent air conditioning.

The present invention for achieving the above object is an air inlet is formed on the inlet side and a plurality of air outlets are formed on the outlet side and the air conditioning case formed in the air passage communicating the air inlet and the air outlet, and the air conditioning case An evaporator 101 installed inside the blower 10, a blower 10 connected to an air inlet 111 side of the air conditioning case 110 to blow air into the air conditioning case 110, and the blower 10. And the passage between the evaporator 101 and the air blown into the air conditioning case 110 by adjusting the opening degree of the first passage 161 and the second passage 162 in the passage according to the rotation angle. In the left and right independent air conditioning apparatus for a vehicle comprising a wind volume control door 150 for adjusting the air volume, the position where the air volume control door 150 closes the first passage 161 or the second passage 162. The closed barrel even when in The bypass passages 170 and 171 are provided in the air volume control door 150 so that a predetermined air volume is supplied to the furnace.

The present invention, the air volume adjusting door is installed between the blower and the evaporator to control the air volume of the air blown into the air conditioning case by installing the air volume control door for adjusting the opening degree of the first and second passages, By providing a bypass passage in the air volume control door so that a certain air volume can be supplied to the closed passage even when the passage or the second passage is in a closed position, even when the air volume control door has closed one passage 1 Since the air volume can be implemented, the control interval (section) for each stage of the air volume control door can be widened, thereby preventing a sudden change in air volume, and also reducing the error for each stage due to the control deviation of the actuator.

In addition, even when the passage cross-sectional area becomes narrow in the process of closing the one-side passage of the air volume control door, a predetermined passage cross-sectional area is secured through the bypass passage, thereby reducing whistle noise.

1 is a block diagram showing a conventional left, right independent air conditioning apparatus for a vehicle,

2 is a block diagram showing an independent left and right air conditioner for a vehicle according to the present invention;

3 is a perspective view showing a case in which the left and right independent air conditioning apparatus for a vehicle according to the present invention is applied to a semi-center type;

Figure 4 is an enlarged perspective view showing a part installed air flow control door in Figure 3,

5 is a front view of FIG. 4;

FIG. 6 is a view illustrating a case where a bypass passage is formed above and below the air volume control door in FIG. 5;

7 is a cross-sectional view showing an air conditioning case in FIG.

8 is a perspective view illustrating a case where a stepped part is formed on the upper and lower sides of an air inlet of the air conditioning case in the left and right independent air conditioning apparatus for a vehicle according to the present invention;

9 is a perspective view illustrating a case in which a door sealing part is formed on an inner side surface of a stepped part in FIG. 8;

10 is an enlarged perspective view showing another embodiment of the air volume control door in the left and right independent air conditioning apparatus for a vehicle according to the present invention;

11 is a graph showing the change in the left and right air volume according to the change in the number of stages in the left and right independent air conditioning apparatus for vehicles according to the present invention.

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

As shown, the left and right independent air conditioner for a vehicle 100 according to the present invention, the air inlet 111 is formed on the inlet side and the defrost vent 121, the face vent 122, the floor vent on the outlet side A plurality of air discharge ports 120 formed of 123 are formed, and an air passage case 110 having an air passage formed therein so as to communicate the air inlet 111 and the air discharge port 120 therein is sequentially formed in the air passage. Separation wall for dividing the evaporator 101 and the heater core 102 and the air passage downstream of the evaporator 101 into the first air passage 106a and the second air passage 106b. 105 and a blower 10 installed at the side of the air inlet 111 of the air conditioning case 110 to connect the outlet 16 to blow air into the air conditioning case 110.

Here, the air conditioning case 110 is formed by assembling left and right cases (110a) and (110b) divided from each other.

In addition, the first air passage 106a in the air conditioning case 110 corresponds to the driver's seat direction on the left side of the vehicle interior, and the second air passage 106b corresponds to the passenger seat direction on the right side of the vehicle interior. Of course, the driver's seat direction and the passenger seat direction may vary depending on the position of the vehicle steering wheel.

In addition, a temperature control door 130 for temperature control is installed between the evaporator 101 and the heater core 102. The temperature control door 130 is provided with the first and second air passages 106a and 106b. Are respectively installed in the air passages bypassing the heater cores 102 and the openings of the air passages passing through the heater cores 102.

In addition, after passing through the evaporator 101, each of the defrost vent 121 to selectively distribute the coarse air through the heater core 102 to each duct (not shown) in communication with a specific position in the vehicle interior. The face vent 122 and the floor vent 123 are provided with a plurality of mode doors 124 to perform various air discharge modes.

On the other hand, the blower 10 is formed inside and outside air inlet (not shown) and the outside air inlet 11 which is opened and closed by the internal and external air conversion door (not shown) so as to selectively flow into the upper side, the inside One blower fan 15 is installed to blow air introduced through the internal and external air inlets to the air conditioning case 110.

The air inlet 111 of the air conditioning case 110 has a predetermined length from the side of the air conditioning case 110 to the outlet 16 of the blower 10 so as to be connected to the outlet 16 of the blower 10. It extends to have a straight section.

That is, as shown in the drawing, the inner air passages 141 and 142 of the air inlet 111 may be divided into first and second air passages 106a (divided by the dividing wall 105 in the air conditioning case 110) ( It is formed to be perpendicular to 106b). At this time, the air inlet 111 is formed in parallel with the evaporator 101.

In the present invention, the air conditioning case is adjusted in the passage between the evaporator 101 and the blower 10 by adjusting the opening degree of the first passage 161 and the second passage 162 in the passage according to the rotation angle. The air volume control door 150 is installed to adjust the air volume of the air blown into the inside of the 110, that is, the first and second air passages 106a and 106b.

The air volume control door 150 is preferably installed in the air inlet 111 is uniform in the cross-sectional area of the air flow passage air flow is uniform.

That is, the internal passage of the air inlet 111 has a uniform cross-sectional area so that the air flow is relatively uniform compared to other parts of the air conditioning case 110, and thus there is no change in the air volume, thereby controlling the air volume inside the air inlet 111. The door 150 is to be installed.

As such, since the cross-sectional area of the air flow passage is uniform, the air flow is relatively uniform, and thus, the air volume adjusting door 150 is installed inside the air inlet 111 without changing the air volume, thereby enabling accurate left and right air volume control. .

In addition, the air volume control door 150 is operated through an actuator 155 installed on the upper side or the lower side of the air inlet 111. That is, the rotation angle of the air volume control door 150 is changed according to the voltage applied to the actuator 155 to adjust the opening degree of the first passage 161 and the second passage 162.

The air volume control door 150 extends toward the outlet 16 of the blower 10 from a side of the rotation shaft 151 which is installed vertically in the center of the air inlet 111 and the rotation shaft 151. And a plate 152 that adjusts the opening degree of the first passage 161 and the second passage 162.

At this time, one end of the rotary shaft 151 of the air volume control door 150 is connected to the actuator 155 provided on the outside of the air inlet 111.

In addition, the air supplied to the first passage 161 and the second passage 162 is partitioned between the air volume control door 150 and the evaporator 101 in the state of the air conditioning case 110. An auxiliary separation wall 160 is formed to allow flow to the first and second air passages 106a and 106b.

That is, the auxiliary separation wall 160 divides the upstream side air passages of the evaporator 101 to the left and the right.

The front end of the auxiliary separation wall 160 is adjacent to the rear side of the rotation shaft 151 of the air volume control door 150, the rear end of the auxiliary separation wall 160 is bent to the evaporator 101 side to the evaporator 101 Adjacent to the front face.

At this time, the rear end of the auxiliary separation wall 160 adjacent to the front surface of the evaporator 101 is located on the same line as the separation wall 105 installed in the air conditioning case 110.

Therefore, the left and right (first and second passage) air volume is adjusted through the air volume control door 150, the air flowing into the auxiliary separation wall 160 formed between the air volume control door 150 and the evaporator 101. Since it is completely separated through, the left and right (first, second passage) until it is separated and controlled by the air flow control door 150 to flow into the first and second air passage (106a) (106b) of the air conditioning case 110 The mixing of air on the side is prevented, which makes it possible to implement a perfect left and right air volume control system.

In addition, even when the air volume control door 150 is in a position to close the first passage 161 or the second passage 162, the air volume adjusting door 150 may supply a predetermined air volume to the closed passage. Bypass paths 170 and 171 are formed to reduce the cross-sectional area of the).

The bypass passages 170 and 171 are formed by reducing the cross-sectional area of the air volume control door 150 in the following two forms.

First, the bypass passage 170 is formed to penetrate the air volume control door 150 directly, that is, the bypass passage having a predetermined cross-sectional area on the plate 152 of the air volume control door 150. 170).

Second, the bypass passage 171 is formed between the first passage 161 or the second passage 162 and the air volume control door 150 by reducing the size of the air volume control door 150. That is, the bypass passage 171 is formed at one end in the axial direction of the air volume control door 150 by reducing the axial length of the air volume control door 150.

Referring to the case in which the air volume control door 150 is in the closed position of the second passage 162 as shown in FIG. 5, the upper end of the air volume control door 150, that is, the image in the second passage 162. The bypass passage 171 is formed between a side surface and an upper end of the air volume control door 150. Of course, it can also be formed on the other side.

In addition, both the bypass passage 170 formed through the air flow control door 150 and the bypass passage 171 formed at one end in the axial direction of the air flow control door 150 may be formed. Only one may be formed.

In addition, as shown in FIG. 6, the bypass passage 171 may be formed on both axial ends of the air volume control door 150 by reducing the axial length of the air volume control door 150.

On the other hand, when the air volume control door 150 closes the first passage 161 or the second passage 162, the side of the air volume control door 150 is in close contact with the side of the air inlet 111 The air is not leaked while being sealed, but the upper and lower ends of the air volume control door 150 are separated from the upper and lower surfaces of the air inlet 111 so that the air is bypassed.

As such, even when the air volume control door 150 is in a position to close the first passage 161 or the second passage 162, a predetermined amount of air can be supplied through the bypass passages 170 and 171 at all times. That is, when the air volume control door 150 is closed on one side of the passage, the first stage air volume can be secured at the closed passage side.

In other words, the passage closed by the air volume control door 150 of the first passage 161 and the second passage 162 is supplied with the first stage air volume through the bypass passages 170 and 171 to the counter passage. Is the maximum singular air volume supplied.

FIG. 11 is a graph showing the change in the left and right air amounts according to the change in the number of stages, where the first passage 161 is on the left side and the second passage 162 is on the right side.

Therefore, when the air volume control door 150 is in a position to close the second passage 162, the air volume control door 150 closes the first passage 161. When it is in the position, it is the first stage on the left and the maximum stage on the right.

Of course, when the air volume control door 150 is located in the middle between the first passage 161 and the second passage 162, the left and right maximum stages are provided.

The number of stages is changed according to the position of the air volume control door 150 according to the voltage applied to the actuator 155 of the air volume control door 150.

For example, in the present invention, when the voltage applied to the actuator 155 is 0.3V, the air volume control door 150 is in the position to close the second passage 162 and becomes the first stage on the right. As the first passage 161 is in the maximum open state, it is the maximum left stage.

When the voltage rises from the 0.3V at a predetermined interval, the air volume control door 150 opens the second passage 162 stepwise while the right stage moves up stepwise (the first passage 161). Maintains the maximum open state up to an applied voltage of 2.5V)

When the applied voltage is 2.5V, the air volume control door 150 is located in the middle between the first passage 161 and the second passage 162 and becomes the right maximum stage (left maximum stage).

Subsequently, when the voltage increases from 2.5V at a predetermined interval, the air volume control door 150 leaves the second passage 162 to close the first passage 161 step by step so that the left stage is also stepped down. (At this time, the second passage 162 maintains the maximum open state up to the applied voltage 4.7V)

When the applied voltage reaches 4.7V, the air volume control door 150 is in a position to close the first passage 161 and becomes the first stage on the left side. (At this time, the second passage 162 has a maximum open state. Will be the maximum stage on the right)

Therefore, since the air volume control door 150 can realize the first stage air volume even when the first passage 161 or the second passage 162 is closed, a control interval for each stage of the air volume control door 150 ( It is possible to widen the section) to prevent a sudden change in the air volume, as well as to reduce the error by the number of stages due to the control deviation of the actuator 155.

In addition, even if the passage cross-sectional area becomes narrow in the process of closing the first passage 161 or the second passage 162, the air volume control door 150 secures a predetermined passage cross-sectional area through the bypass passages 170 and 171, thereby whistle. Noise can be reduced.

On the other hand, if the air volume of the first passage 161 and the second passage 162 by the air flow control door 150 is adjusted, the first air passage 106a and the first in the air conditioning case 110 corresponding thereto. The air volume of the two air passages 106b is also adjusted to the same air volume.

FIG. 8 is a perspective view illustrating a case where a stepped portion is formed above and below an air inlet of the air conditioning case, and the inside of the air inlet 111 where the rotating shaft 151 is installed is rotated by the air volume control door 150. The step portion 115 is formed corresponding to the range.

That is, the stepped portion 115 protruding toward the bypass passage 171 is formed on the inner side and the lower side of the air inlet 111, and the height of the stepped portion 115 is adjusted to adjust the bypass passage ( The cross-sectional area of 171 can be adjusted.

FIG. 9 is a perspective view illustrating a case in which the door sealing part is formed on the inner side of the stepped part of FIG. 8, and the door sealing part is positioned at the step part 115 at a position corresponding to the number of rotation angles of the air volume control door 150. 116 is formed to protrude.

That is, when the air volume control door 150 is in a position (stage position) for closing the first passage 161 or the second passage 162, the closed passage through the bypass passage 171. A predetermined air volume (single stage air volume) is supplied, and the door sealing unit 116 is formed at positions other than the first stage to close the bypass passage 171.

Therefore, since the bypass passage 171 is closed at positions other than the first stage of the air volume control door 150, the air volume is adjusted only through the opening amount according to the rotation angle for each stage of the air volume control door 150.

Meanwhile, in FIG. 9, the door sealing part 116 is shown only in the stepped part 115 formed at the lower side of the air inlet 111 for convenience, but the door part is also formed in the stepped part 115 formed at the upper side of the air inlet 111. The sealing part 116 is formed.

And, Figure 10 is another embodiment of the air volume control door 150, the air volume control door 150 is installed by separating two in the vertical direction.

At this time, the upper and lower ends of the air inlet 111 is provided with an actuator 155 to operate each individually to operate each of the air volume control door 150 individually.

In addition, a sealing wall 140 is formed inside the air inlet 111, and the sealing wall 140 is formed between the two air volume control doors 150 to provide a space between the air volume control doors 150. Will be partitioned.

The sealing wall 140 is formed to partition the inside of the air inlet 111 up and down.

Therefore, since the two air volume control doors 150 partitioned through the sealing wall 140 control the air volume flowing into the first and second passages 161 and 162, the first air volume control door 150 is the first air flow control door 150. , When adjusting the air volume of the two passages (161, 162) it is possible to make finer left, right air volume control.

As such, as shown in FIG. 10, the bypass passages 170 and 171 may be formed in the air volume control door 150 even in the structure in which the two air volume control doors 150 are installed, thereby obtaining the same effects as described above.

Meanwhile, in FIG. 10, the bypass passage 170 is formed only in one of the two air volume control doors 150, but both of the two air volume control doors 150 are illustrated in FIG. 10. The bypass passage 170 may be formed.

Hereinafter, the air flow process of the left and right independent air conditioning apparatus for a vehicle according to the present invention will be described. Here, the representative mode is the cooling mode (see FIG. 2), and only the case where the airflow control door 150 operates in a position to close the second passage 162 will be described.

First, air blown through the outlet 16 of the blower 10 by the operation of the blower 10 is introduced into the air inlet 111.

The air flowing into the air inlet 111 is controlled to the left and right air volume by the air volume control door 150, because the air volume control door 150 closes the second passage 162 as shown in FIG. The second passage 162 is supplied with the first stage air volume through the bypass passage 170, and the first passage 161 is supplied with the maximum single stage air volume.

Subsequently, the air controlled to the maximum stage air volume on the left side and the stage stage air volume on the right side is introduced into the air conditioning case 110 in a state of being completely separated by the auxiliary separation wall 160 and then the evaporator 101. Will pass through.

The air passing through the evaporator 101 is changed to cold air in the process of passing through the evaporator 101, the cold air heat exchanged in the evaporator 101 is in the internal partition wall 105 of the air conditioning case 110. As a result, the first air passage 106a and the second air passage 106b are separated and flow.

Subsequently, the air separated and flowing into the first air passage 106a and the second air passage 106b bypasses the heater core 102 by the temperature control door 130, and then the mode door. The air is discharged into the vehicle interior through the vents 121 and 122 and 123 opened by the 124 to be cooled while supplying the maximum amount of air to the driver's seat (left) in the vehicle compartment, and to the passenger seat (right). It is cooled by supplying the first stage air volume.

Of course, if the air volume control door 150 and the temperature control door 130 and the mode door 124, which are separately installed on the left and right sides of the separation wall 105, can be adjusted independently of the driver's seat. The passenger seat can be controlled independently with the desired airflow, temperature and air discharge mode.

On the other hand, the above has been described only for the cooling mode, in addition to this can be carried out a variety of air conditioning modes, including the heating mode, such a air conditioning mode is known in the detailed description is omitted here.

Claims (11)

An air inlet 111 is formed at the inlet side, and a plurality of air outlets 120 are formed at the outlet side, and an air conditioner case 110 having an air passage therein for communicating the air inlet 111 and the air outlet 120 is formed therein. Wow, An evaporator 101 installed inside the air conditioning case 110, A blower 10 connected to the air inlet 111 side of the air conditioning case 110 to blow air into the air conditioning case 110; It is installed in the passage between the blower 10 and the evaporator 101, and adjusts the opening degree of the first passage 161 and the second passage 162 in the passage according to the rotation angle to the inside of the air conditioning case 110 In the left and right independent air conditioner for a vehicle, comprising an air volume control door 150 for adjusting the air volume of the air blown to, Even when the air volume control door 150 is in a position to close the first passage 161 or the second passage 162, a predetermined air volume can be supplied to the closed passage to the air volume control door 150. Independent air conditioning apparatus for a vehicle, characterized in that the bypass passage (170,171) is provided. The method of claim 1, The bypass passage 170, the left and right independent air conditioning apparatus for a vehicle, characterized in that formed through the air flow control door (150). The method according to claim 1 or 2, The bypass passage 171 is a vehicle left and right independent air conditioning apparatus, characterized in that formed between the first passage (161) or the second passage (162) and the air volume control door (150). The method of claim 3, wherein The bypass passage 171, the left and right independent air conditioning apparatus for a vehicle, characterized in that provided in the axial one end portion of the air flow control door 150 by reducing the axial length of the air flow control door (150). The method of claim 3, wherein The bypass passage 171, the left and right independent air conditioning apparatus for the vehicle, characterized in that provided on both ends of the axial direction of the air volume control door 150 by reducing the axial length of the air volume control door (150). The method of claim 1, The passage closed by the air volume control door 150 among the first passage 161 and the second passage 162 is supplied with the first stage air volume through the bypass passages 170 and 171, and the maximum number of stages as the relative passage. Left and right independent air conditioning apparatus for a vehicle, characterized in that the air volume is supplied. The method of claim 1, The air volume control door 150, A rotating shaft 151 installed vertically in the air inlet 111; On the side of the rotary shaft 151 is formed extending toward the outlet of the blower 10 for the vehicle characterized in that it consists of a plate 152 for adjusting the opening degree of the first passage 161 and the second passage 162. Left and right independent air conditioning system. The method of claim 7, wherein On the inner surface of the air inlet 111 in which the rotary shaft 151 is installed, the vehicle left and right independent air conditioning apparatus, characterized in that the step portion 115 is formed corresponding to the rotation range of the air volume control door 150. . The method of claim 8, The step unit 115, the left and right independent air conditioning apparatus for a vehicle, characterized in that the door sealing portion 116 is formed to protrude at a position corresponding to the rotation angle for each stage of the air volume control door (150). The method of claim 1, Inside the air conditioning case 110, a partition wall 105 for dividing the downstream air passage of the evaporator 101 into the first air passage 106a and the second air passage 106b is provided. Independent left and right air conditioner for vehicles. The method of claim 10, Between the air volume control door 150 and the evaporator 101, the air supplied to the first passage 161 and the second passage 162 are partitioned from each other, the first of the air conditioning case 110 , Second air passage (106a) (106a) 106, the left and right independent air conditioning apparatus for a vehicle, characterized in that the auxiliary separation wall 160 is formed to flow.

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