KR100744488B1 - Air conditioner for vehicle - Google Patents

Abstract

In the vehicle air conditioner according to the present invention, the inner and outer air inlets are formed at the front end of the body, respectively, the defrost outlet and the vent outlet are in communication with the inner and outer air inlet in the upper part of the opening and closing by the doors respectively installed therein A case through which the floor outlet is opened in the lower part of the body to be opened and closed by the door; An evaporator installed at the rear of the inlet and the outer air inlet to heat exchange the air passing through the air to cool the vehicle interior at a low temperature; A heater core installed at a rear side of the evaporator to heat-exchange the air passing through the heater to heat the vehicle interior at a high temperature; A first temporal door slidably installed between the evaporator and the heater core; The first temporal door is connected to and interlocked by a connecting means to control the flow direction of the internal and external air introduced into the internal and external air inlets, and includes a first partition wall slidable.

Description

Air conditioner for vehicle

1 is a cross-sectional view showing a vehicle air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view of the first temporal door and the first dividing wall in FIG. 1; FIG.

3 is a cross-sectional view of the index means provided between the connecting portion of the first temper door and the first connecting portion of the first link in FIG.

4 is a cross-sectional view showing the indexing means provided between the first separation wall and the second guide portion in FIG.

5A to 5C are cross-sectional views illustrating positions of the first temporal door and the first dividing wall according to the mode type in FIG. 1.

6 is a cross-sectional view showing an operating state of a vehicle air conditioner in the fresh-warm-mix mode.

7 is a cross-sectional view showing an operating state of a vehicle air conditioner in the fresh-warm-floor mode.

8 is a cross-sectional view showing an operating state of a vehicle air conditioner in the fresh-warm-defrost mode.

Fig. 9 is a sectional view showing the operating state of the vehicle air conditioner in the Resistor-1 / 2 cool-by / level mode.

FIG. 10 is a cross-sectional view showing an operating state of a vehicle air conditioner when in a vehicle-cool-vent mode; FIG.

FIG. 11 is a cross-sectional view showing an operating state of a vehicle air conditioner in the case of a recircle-cool-floor mode. FIG.

12 is a cross-sectional view showing an example of a conventional vehicle air conditioner.

<Brief description of the major symbols in the drawings>

21,22 Link 23,24 Guide part

30,40..Index means 31,41..Ball

32,42.Spring 111.Case

112..Defrost exit 113..Bent exit

114..Floor Exit 122..First Partition Wall

131 .. 1st door 140 .. Evaporator

150.Heater core

The present invention relates to a vehicle air conditioner for supplying a double-layer air flow, and more particularly, in the path between the evaporator and the heater core, the structure of the temporal door and the partition wall for controlling the flow direction of the internal and external air is improved. It relates to a vehicle air conditioner.                         

In general, when heating the interior of the car in the winter, low temperature cold air is introduced in order to prevent sexuality generated in the window, resulting in lowering the temperature inside the car.

In recent years, in order to solve such a problem, a vehicle air conditioner capable of realizing two-layer flow of internal and external air for supplying outside air to the top of the vehicle and circulating the inside of the vehicle has been adopted. In other words, this air conditioner supplies fresh and low-humidity outside air to the upper side, reducing defrost on the windows, ensuring defogging function, and providing fresh outside air to the passengers, while warm bet at the bottom. It is a vehicle air conditioner that can increase the heating performance in the interior of the vehicle by supplying.

As a related art in this regard, a vehicle air conditioner disclosed in Japanese Patent Laid-Open No. 10-181336 is shown in FIG.

Referring to the drawings, the vehicle air conditioner 1 is divided into the internal and outdoor air inlets 3 and 4 by the partition wall 2, and the first fan (in the internal and outdoor air inlets 3 and 4) is provided. A blower 7 having 5) and a second fan 6 is installed to supply air into the case 8. The evaporator 9 and the heater core 10 are sequentially installed from the internal and external air inlets 3 and 4 into the case 8. In addition, the first and second temporal doors 11 and 12 for switching the cooling and heating modes are interlocked with each other in the upper and center portions of the heater core 10.

The conventional air conditioner 1 configured as described above rotates the first and second temper doors 11 and 12 downward in the cooling mode to block the front of the heater core 10 and at the same time, the heater core 10. By opening the upper passage of the defrost outlet 13, vent outlet 14 and the floor, the internal and external air flowing from the blower 7 is lowered as it passes through the evaporator 9. floor) is supplied into the vehicle interior through the outlet 15 to cool the vehicle interior. In the heating mode, as shown in the drawing, the first and second temper doors 11 and 12 are rotated upward to open the front of the heater core 10, so that the first tempor 11 serves as a partition wall. The introduced bet is passed through the bottom of the heater core 10 to the interior of the vehicle through the floor outlet 15 to heat the interior of the interior, and the introduced outside air passes through the heater core 10 to the defrost outlet ( 13), defogging is performed.

However, in the conventional air conditioner operated as described above, when the first temporal door which opens the heater core in front of the heating mode rotates, the front end of the air conditioner is spaced apart from the evaporator by a predetermined gap. Therefore, by mixing a portion of the internal and external air supplied to the heater core in the gap, there is a problem that the defogging performance is lowered by increasing the upper air humidity, while the heating effect is lowered by lowering the lower air temperature.

In addition, the temp doors are axially coupled to the case and rotated about the axis to open and close the air flow path, and an axial rotation type for adjusting the opening and closing angle is used. However, enough space is required for the tempdoor to rotate smoothly. As a result, the size of the case becomes large, and there is a limit to downsizing the case. In addition, a large amount of power is required to drive the tempdoors, and thus there is a problem in that noise may be greatly generated.

The present invention is to solve the above problems, it is installed between the evaporator and the heater core is connected to the first temporal door and the first separation wall for controlling the flow direction of the internal and external air by connecting means to interlock, while sliding them It is an object of the present invention to provide a vehicle air conditioner that can increase the space utilization inside the case.

In order to achieve the above object, the air conditioner for a vehicle according to the present invention has an internal and outdoor air inlet formed at a front end of a body, and a defrost outlet and a vent outlet are communicated with the internal and outdoor air inlet at an upper portion of the body. A case which is opened and closed by doors respectively installed and is opened and closed by a door through a floor outlet at a lower part of the body; An evaporator installed at the rear of the inlet and the outer air inlet to heat-exchange the air passing through the air to cool the vehicle interior at a low temperature; A heater core installed at a rear side of the evaporator to heat-exchange the air passing through the heater to heat the vehicle interior at a high temperature; A first temporal door slidably installed between the evaporator and the heater core; The first temporal door is connected to and interlocked by a connecting means, and controls a flow direction of the internal and external air introduced into the internal and external air inlets, and includes a first partition wall that is slidable.

Preferably, the connecting means includes at least two links connecting the first temporal door and the first partition wall.

At least one side of the connection portion of the links or the connection portion of the link and the first tempor is preferably provided with an indexing means for indexing the movement position of the first tempor.

At least one side of the first temporal door and the guide portion opposite thereto may further include indexing means for indexing a moving position of the first temporal door.

At the rear of the heater core, in order to distribute the air volume discharged to the defrost outlet and the floor outlet, respectively, at the center thereof, a second dividing wall disposed in parallel with the inflow direction of the air, and the second dividing wall and the heater core. It is preferred that the third separation wall provided between the rear upper end of the second, the second tempered wall is further provided with a second temper door provided.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a cross-sectional view of a vehicle air conditioner according to an embodiment of the present invention.

Referring to the drawings, an air conditioner for a vehicle basically includes a case 111, an evaporator 140, and a heater core 150.

An inlet is formed at the front end of the case 111, and the inlet is divided by the partition wall 121 and is divided into internal and external air inlets 115a and 115b. The upper part of the case 111 is provided with a defrost outlet 112 so as to remove the frost by supplying the outside air in the direction of the glass window in the vehicle interior, the one side of the defrost outlet 112, the inside and outside air in the vehicle interior Vent outlet 113 is provided to supply in the direction of the, and the floor outlet 114 for supplying the internal and external air to the lower side of the vehicle interior is formed. Doors 134, 135, and 136 are installed at the outlets 112, 113, and 114, respectively, to open and close the outlets 112, 113, and 114.

An air blower (not shown) for forcibly supplying air to the interior and exterior air inlets 115a and 115b of the case 111 is installed, and an evaporator 140 for exchanging the internal and outdoor air to a low temperature state to the rear thereof. ) And a heater core 150 for heat-exchanging internal and external air at a high temperature state are installed at the rear of the evaporator 140.

A first temporal door 131 is disposed between the evaporator 140 and the heater core 150, and a first separation wall 122 is provided below the first temporal door 131. The first temporal door 131 and the first separation wall 122 are connected to each other by a connecting means to interlock with each other. In addition, the first temporal door 131 and the first separation wall 122 are installed to be slidable up and down.

One end of the first separation wall 122 is in contact with the rear of the evaporator 140, and the other end is in contact with the front of the heater core 150. The first temporal door 131 and the first separation wall 122 are each formed of a plate member.

The first tempor 131 controls the flow direction of internal and external air flowing into the internal and external air inlets 115a and 115b of the case 111, and the first separation wall 122 is the internal air inlet 115a. It will control the flow direction of the bet flowing into. That is, the first tempor 131 may perform various modes of the vehicle air conditioner together with the first separation wall 122, which will be described later with reference to FIGS. 6 to 11.

The second separating wall 123 and the third separating wall 124 are formed at the rear side of the heater core 150 in parallel with the inflow direction of the air from the heater core 150. That is, the second separation wall 123 is formed at the rear center of the heater core 150, and the third separation wall 124 is formed between the second separation wall 123 and the upper end of the heater core 150. It is formed approximately in the center. A second temporal door 132 is installed behind the second and third separation walls 123 and 124.

When the front end of the second temper door 132 is positioned at one of the rear ends of the second and third separation walls 123 and 124, the heat-exchanged air is distributed through the heater core 150. That is, the ratio between the amount of air discharged to the defrost outlet 112 and the amount of air discharged to the floor outlet 114 is approximately when the second temporal door 132 is positioned on the second separation wall 123. 5: 5, and when the second temporal door 132 is positioned on the third separation wall 124, the ratio becomes 3: 7.

A third temporal door 133 is installed above the third dividing wall 124, and the third temporal door 133 opens and closes a flow path of air that has undergone heat exchange through the heater core 150.

On the other hand, a fourth separating wall 125 is formed at the rear lower side of the heater core 150. When the front end portion of the second temper door 132 is positioned at the rear end of the fourth separating wall 125, the heater core Through the 150, the heat-exchanged air can block the flow path supplied to the floor outlet 114.

FIG. 2 illustrates an extract of a first temporal door and a first separation wall in the vehicle air conditioner of FIG. 1.

Referring to the drawings, the first tempor 131 and the first separation wall 122 are connected by a connecting means 20, the connecting means 20 is at least two first, second links ( 21,22).

The first connecting portion 21a of the first link 21 is axially coupled to the connecting portion 131a of the first temper door 131, and the second connecting portion 21b of the first link 21 is the second link 22. It is axially coupled with the first connecting portion (22a) of. The second connecting portion 22b of the second link 22 is coupled to and fixed to the connecting portion 122a of the first separation wall 122.

Of the connecting portion 131a of the first tempor 131 and the first connecting portion 21a of the first link 21, a through hole is formed at one side, and the shaft protrusion which can be inserted into the through hole is at the other side. Formed. The same applies to the second connecting portion 21b of the first link 21 and the first connecting portion 22a of the second link 22.

The second connecting portion 21b of the first link 21 and the first connecting portion 22a of the second link 22 are hinged to allow free rotation.

The first guide part 23 is formed in the case 111 to correspond to the side surface of the first tempor 131. The first guide portion 23 is for guiding the transport trajectory of the first temper door 131. In addition, the case 111 has a second guide portion 24 formed at a position corresponding to the side surface of the first separation wall 122, and both sides of the second guide portion 24 have a first separation wall ( Three pairs of semi-circular indexing grooves 24a are formed at predetermined intervals along the conveyance trajectory of 24).

The first and second guide parts 23 and 24 may be formed as grooves having a predetermined depth so that portions of the first tempor 131 and the first separation wall 122 may be inserted and transported, or predetermined intervals may be provided. It may be formed of a pair of protrusions spaced apart and having a predetermined space therebetween.

Meanwhile, indexing means 30 (see FIG. 3) for indexing a moving trajectory of the first tempor 131 is provided at a connection portion between the first tempor 131 and the first link 21. One side of the first dividing wall 122 is also provided with indexing means 40 (see FIG. 4) for indexing the transport trajectory of the first dividing wall 122.

The index means 30, 40 are preferably ball flanges. The index means 30 and 40 will be described in detail with reference to FIGS. 3 and 4.

FIG. 3 shows the index means provided between the connecting portion of the first temporal door and the first connecting portion of the first link in FIG. 2.

Referring to the figure, the indexing means 30 comprises a ball 31 and a spring 32.

A through hole is formed in the first connecting portion 21a of the first link 21, and a shaft protrusion is formed in the connecting portion 131a of the first temporal door 131. A shaft projection is inserted into the through hole.

A predetermined space 33 is formed on an inner circumferential surface of the through hole formed in the first connecting portion 21a of the first link 21, and a ball 31 is inserted into the space 33. A spring 32 is interposed between the bottom surface of the space 33 and the ball 31. Thus, the ball 31 is elastically biased by a spring.

An entrance preventing member 34 having a through hole smaller than the diameter of the ball 31 may be installed at the inlet of the space 33 so that the ball 31 is not separated.

Three indexing grooves 21c arranged at predetermined intervals are formed on the outer circumferential surface of the shaft projection formed at the first connecting portion 21a of the first link 21 so that the balls 31 can be seated.

The first connecting portion 21a of the first link 21 and the connecting portion 131a of the first temper door 131 are relatively rotated, and the first temper door 131 reaches a position to be transferred. The ball 31 is seated in the indexing groove 21c.

The index means 30 is not limited to that shown in the drawing, but may be provided on the outer circumferential surface of the shaft projection of the first connecting portion 21a of the first link 21. In this case, three indexing grooves 21c disposed at predetermined intervals should be formed on the inner circumferential surface of the through hole of the connecting portion 131a of the first tempor 131 so that the ball 31 can be seated. something to do.

On the other hand, the index means 30 may be installed at the connection portion of the first link 21 and the second link 22, not the connection portion of the first link 21 and the first tempor 131. . In this case, it is preferable that the first connecting portion 21a of the first link 21 and the connecting portion 131a of the first temple door 131 be hinged to be rotatable.

FIG. 4 illustrates the indexing means provided between the first separating wall and the second guide portion in FIG. 2.

Referring to the figure, the indexing means 40 is provided on the side of the first separating wall 122. The index means 40 are paired and installed on both sides of the protrusion 122a (see FIG. 2) formed on the side surface of the first separation wall 122. That is, the index means 40 has two balls 41 and a spring 42, which are located at both inlets of the through holes formed on the side of the protrusion 122a, respectively. A spring 42 is interposed between the 41.

In addition, a second guide part 24 is formed in the case 111 so that the protrusion part 122a may be guided, and both sides of the second guide part 24 may be seated so that the ball 41 may be seated. Three pairs of indexing grooves 24a arranged at intervals are formed.

The indexing grooves 24a index the position of the first separating wall 122 when the first separating wall 122 is transported. That is, when the first separation wall 122 reaches the position to be transferred, the ball 41 is seated in the indexing groove 24a corresponding to the transfer position.

On the other hand, the index means 40 may be installed in the second guide portion 23, but in this case, since three index means 40 should be installed in the second guide portion 23, the first separation wall ( It is more preferable that one indexing means 40 is provided in 122.

In addition, the index means 40 provided on the first separation wall 122 may be installed on at least one side of the first tempor 131 and the first guide part 23. As described above, the first guide part may be provided. (23) It may be preferable that the index means 40 is provided in the first tempor 131. In this case, the ball 41 of the index means 40 is disposed at a predetermined interval, such as the second guide portion 24, on the first guide portion 23 so that the ball 41 can be seated on the first guide portion 23. Three indexing grooves 24a are provided, and the connecting portions of the first link 21 and the second link 22 and the connecting portions of the first temporal door 131 and the first link 21 are hinged, respectively. It should be possible to turn.

The indexing grooves 21c and 24a formed to correspond to the balls 31 and 41 to index the transfer trajectories of the first temporal door 131 and the first separation wall 122 are provided in the vehicle air conditioner 100. When constituting the mode, it is preferable to be formed so as to correspond to the position of the first tempor 131 and the first separation wall 122 according to each mode.                     

5A to 5C illustrate the positions of the first temporal door and the first dividing wall according to exemplary modes in the vehicular air conditioner of FIG. 1.

That is, FIG. 5A shows a fresh-warm-mix mode, a fresh-warm-floor mode, and a fresh-warm-defrost mode, FIG. 5B. Recircle-1 / 2Cool-Bi / Level mode, FIG. 5C shows Recircle-Cool-Vent mode and fresh / recycler In the case of the Recircle-Cool-Floor mode, the positions of the first temporal door and the first dividing wall are shown.

6 to 11, the modes will be described. Arrows in the figure indicate the flow direction of air.

FIG. 6 is a fresh-warm-mix mode. For this purpose, when the operation switches on the operation panel of the vehicle are adjusted, as illustrated in FIG. 5A, the first tempor 131 bypasses the heater core 150. Located to block the flow path of air, the front end of the first separation wall 122 is positioned to extend from the rear end of the partition wall 121, the rear end is positioned to extend from the front end of the second separation wall 123. Then, the defrost outlet 112 side door 134 is completely open, the third temp door 133 is completely opened. The second temporal door 132 is positioned to correspond to the second separation wall 123, and thus the passageway on the side of the fourth separation wall 125 is opened.

Therefore, the outside air introduced into the outside air inlet 115b of the case 111 passes through the evaporator 140 and flows upward of the heater core 150 by the first separation wall 122 to the inside air inlet 115a. The bet is separated to face downward of the heater core 150 and flows into the heater core 150. The outside air having passed through the heater core 150 moves through the open side of the third temporal door 133 and is supplied into the vehicle through the open defrost outlet 112. Meanwhile, the bet passing through the heater core 150 is supplied into the vehicle interior through the floor outlet 114 through the passage on the side of the fourth separation wall 125. As a result, the ratio of the amount of air supplied into the vehicle interior through the defrost outlet 112 and the amount of air supplied to the vehicle interior through the floor outlet 114 is approximately 5: 5.

7 is a fresh-warm-floor mode, in which the positions of the first tempor 131, the first dividing wall 122, and the third tempor 133 are the same as in the mode of FIG. 6. The defrost outlet 112 side door 134 is partially opened, and the second temporal door 132 is positioned to correspond to the third separation wall 124.

Therefore, the bet introduced into the bet inlet 115a of the case 111 is introduced below the heater core 150 to pass through the heater core 150. On the other hand, the outside air introduced into the outside air inlet 115b of the case 111 flows upward of the heater core 150, passes through the heater core 150, and is bisected by the third separation wall 124. Then, the outside air moved upstream to the boundary of the third separation wall 124 is supplied into the vehicle interior through the defrost outlet 112, and the outside air moved downstream is mixed with the bet passing through the heater core 150, The mixed state is supplied into the vehicle interior through the floor outlet 114 via the passageway of the fourth separation wall 125. As a result, the ratio of the amount of air supplied to the vehicle interior through the defrost outlet 112 and the amount of air supplied to the vehicle interior through the floor outlet 114 is approximately 3: 7.

FIG. 8 is a fresh-warm-defrost mode, in which a first tempor 131, a first dividing wall 122, and a third tempor 133 are positioned, and a defrost exit 112 side door. The state in which 134 is fully open is the same as in the mode of FIG. Meanwhile, the second temporal door 132 is positioned to correspond to the fourth separation wall 125. Therefore, the internal and external air introduced from the internal and external air inlets 115a and 115b of the case 111 are mixed after passing through the heater core 150, respectively. The mixed internal and external air are supplied to the vehicle interior through the defrost outlet 112 through the third temporal door 133 side passage.

FIG. 9 is a research circle-1 / 2 cool-by / level mode. When the operation switches on the operation panel of the vehicle are adjusted for this purpose, as shown in FIG. 5B, the first tempor 131 is a heater. While partially opening the flow path of air bypassing the core 150 and opening the flow path of air flowing in the lower portion of the heater core 150, the tip portion of the first separation wall 122 is partition wall 121. It is located lower than the extended point of the rear end of. The vent exit 113 side door 135, the third temporal door 133, and the floor outlet 114 side door 136 are completely opened. The second temporal door 132 is positioned to correspond to the second separation wall 123, and thus the passageway on the side of the fourth separation wall 125 is opened.

The internal and external air introduced from the internal and external air inlets 115a and 115b of the case 111 are mixed behind the evaporator 140 via the evaporator 140. Some of the air mixed as described above passes through the heater core 150 along the flow path of the air flowing downward of the heater core 150. The air passing through the heater core 150 continues to pass through the side of the fourth separation wall 125 and is supplied into the vehicle interior through the floor outlet 114.

On the other hand, the remainder of the mixed air is moved along the flow path of the air that bypasses the heater core 150, that is, the upper portion of the first temper door 131. Some of these flow into the vent outlet 113 and the others flow through the floor outlet 114 side passage to the floor outlet 114 and are supplied into the vehicle interior.

FIG. 10 is a researcher-cool-vent mode. When the operation switches on the operation panel of the vehicle are adjusted for this purpose, as illustrated in FIG. 5C, the first tempor 131 is connected to the heater core 150. It is positioned to completely block the flow path of the incoming air, and the front end of the first separation wall 122 is located substantially below the evaporator 140. Then, only the vent outlet 113 side door 135 is completely opened.

The internal and external air introduced from the internal and external air inlets 115a and 115b of the case 111 respectively pass through the evaporator 140 and are then supplied into the vehicle interior through the vent outlet 113.

FIG. 11 illustrates a recircle-cool-floor mode in which the positions of the first temporal door 131 and the first dividing wall 122 are the same as in the mode of FIG. 10. On the other hand, the defrost outlet 112 side door 134 is partially opened, the floor outlet 114 side door 136 is fully opened.

The internal and external air introduced from the internal and external air inlets 115a and 115b of the case 111 pass through the evaporator 140, and some of the external air is supplied into the vehicle interior through the defrost outlet 112, and the rest The gas flows into the floor exit 114 side passage along with the bet, and is supplied into the vehicle interior through the floor exit 114 to perform air conditioning of the vehicle.

As described above, in the vehicle air conditioner, a first temporal door and a first separation wall provided below the first temporal door are installed between the evaporator and the heater core to control the flow direction of the internal and external air. By interlocking with the connecting means and slidably installing the first temporal door and the first separating wall, the space utilization in the case can be increased, and the case can be miniaturized.

In addition, large power is not required to drive the first temporal door, and noise during driving can be reduced.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (9)

Internal and external air inlets are formed at the front end of the body, and the defrost outlet and the vent outlet are communicated with the internal and external air inlets at the upper part of the body, and are opened and closed by doors respectively installed therein, and the floor outlet is provided through the lower part of the body. A case opened and closed by the door; An evaporator installed at the rear of the inlet and the outer air inlet to heat-exchange the air passing through the air to cool the vehicle interior at a low temperature; A heater core installed at a rear side of the evaporator to heat-exchange the air passing through the heater to heat the vehicle interior at a high temperature; A first temporal door slidably installed between the evaporator and the heater core; The first temporal door is connected to and interlocked by a connecting means to control the flow direction of the internal and external air introduced into the internal and external air inlets, and a sliding first partition wall; Device. The method of claim 1, And said connecting means comprises at least two links connecting said first temporal door and said first dividing wall. The method of claim 1, The case further comprises a guide unit for guiding the transport trajectory of the first temper door and the first separation wall. The method of claim 2, And at least one side of the connection portion of the links or the connection portion of the link and the first tempored door further comprises indexing means for indexing a moving position of the first tempored door. The method of claim 2, And at least one side of the first temporal door and a guide portion opposed to the first temporal door, and indexing means for indexing a moving position of the first temporal door. The method according to claim 4 or 5, At least one side of the first separation wall and the guide portion opposed to the vehicle air conditioner, characterized in that it further provided with indexing means for indexing the transport trajectory of the first separation wall. The method of claim 6, The indexing means is a vehicle air conditioner, characterized in that consisting of a ball flange. The method of claim 1, At the rear of the heater core, in order to distribute the air volume discharged to the defrost outlet and the floor outlet, respectively, at the center thereof, a second dividing wall disposed in parallel with the inflow direction of the air, and the second dividing wall and the heater core. And a third tempered wall installed between the rear upper end of the second tempered wall and a second temper door installed at the rear of the second and third separating walls. The method of claim 8, When the tip portion of the second temp door is located at the rear end of the second dividing wall, the air volume ratio of the air discharged to the defrost outlet and the floor outlet is 5: 5, and the tip portion of the second temp door is the first portion. 3. The vehicle air conditioner of claim 3, wherein the air volume ratio of the air discharged to the defrost outlet and the floor outlet is 3: 7 when it is located at the rear end of the dividing wall.

Images