KR102533416B1 - Air conditioner for vehicle - Google Patents

Abstract

An air conditioner for a vehicle capable of reducing manufacturing costs while improving mixing of cold air and warm air, efficiently using a limited space inside an air conditioning case, and minimizing an operating radius of a temperature control door is disclosed. An air conditioner for a vehicle includes an air conditioning case having an air inlet formed at an inlet side, an air passage formed therein, and a defrost vent, a face vent, and a floor vent formed at an outlet side, and sequentially in the air flow direction on the air passage of the air conditioning case. It includes a cooling means and a heating means installed as, and a temperature control means for adjusting the opening degree so that the air passing through the cooling means selectively flows through the heating means, wherein the air passing through the cooling means passes through the heating means. a warm air passage forming a flow path so as to; a first cold air passage through which the air passing through the cooling means bypasses the heating means; and a second cold air passage spaced apart from the first cold air passage and allowing the air passing through the cooling means to bypass the heating means.

Description

Vehicle air conditioner {AIR CONDITIONER FOR VEHICLE}

The present invention relates to an air conditioner for a vehicle, and more particularly, to an air conditioner for a vehicle installed in a vehicle and maintaining conditions such as temperature, humidity, air flow, and cleanliness in a vehicle suitable for a purpose of use.

Vehicle air conditioner is a device for cooling or heating the vehicle interior by introducing air from outside the vehicle into the vehicle interior or by heating or cooling it in the process of circulating the air inside the vehicle. A heater core is provided for operation. The vehicle air conditioner is configured to selectively blow air cooled or heated by an evaporator or a heater core to each part of a vehicle interior by using a blowing mode switching door.

1 is a cross-sectional view showing a conventional vehicle air conditioner.

As shown in FIG. 1, a conventional vehicle air conditioner 1 includes an air conditioning case 10, a blower (not shown), an evaporator 2, a heater core 3, and a temperature control door 15. made including

An air inlet 11 is formed on the inlet side of the air conditioning case 10, and a defrost vent 12a, a face vent 12b, and a floor vent whose opening is controlled by mode doors 16, 17, and 18 on the outlet side, respectively. (12c, 12d) is formed. The blower is connected to the air inlet 11 of the air conditioning case 10 to blow internal or external air. And, the evaporator 2 and the heater core 3 are sequentially installed inside the air conditioning case 10 . In addition, the temperature control door 15 is installed between the evaporator 2 and the heater core 3, and the cold air passage P1 bypassing the heater core 3 and the warm air passing through the heater core 3 Adjust the opening degree of the flow path (P2). Cold air and warm air passing through the cold air passage P1 and the warm air passage P2 are mixed in the mixing zone MC.

In this case, one mode door 16 is a defrost door that adjusts the opening of the defrost vent 12a, the other mode door 17 is a face door that adjusts the opening of the face vent 12b, and another The mode door 18 is a floor door that adjusts the opening of the floor vents 12c and 12d. Further, the floor vents 12c and 12d are separated into a floor vent 12c for front seats and a floor vent 12d for rear seats. In addition, the temperature control door 15 and the mode door 16, 17, 18 are connected to an actuator (not shown) installed on the outside of the air conditioning case 10 to rotate and operate, so that the cold and hot air passages P1 and P2 Adjusts the opening degree of or the opening degree of the flow path to each vent (12a ~ 12d).

As shown in FIG. 1, in the conventional air conditioning system for a vehicle, when the air passing through the warm air passage P2, that is, the rear of the case, escapes to the floor vents 12c and 12d or the defrost vent 12a in the Mix mode. , There is a problem in that mixing of cold air and warm air in the mixing zone MC is insufficient because the discharge port distance between the floor vents 12c and 12d and the defrost vent 12a is long. As a result, as shown in FIG. 2 , a temperature difference between the outlets of the floor vents 12c and 12d and the defrost vent 12a is greater than 25°C. In FIG. 2 , the horizontal axis represents the rotation angle of the temperature control door, and when the rotation angle is 0, it is in the maximum cooling (Max Cool) state, and when the rotation angle is 8, it is in the maximum heating (Max Warm) state.

In addition, the conventional vehicle air conditioner has a problem in that it is difficult to supply warm air to the discharge port of the defrost vent 12a, so that it does not smoothly perform the defrosting role and causes emotional dissatisfaction of the driver.

In order to solve such conventional problems, the present invention improves the mixing of cold air and warm air, efficiently uses the limited space inside the air conditioning case, minimizes the operating radius of the temperature control door, and reduces manufacturing costs. Provides air conditioning.

An air conditioner for a vehicle according to the present invention includes an air conditioning case having an air inlet formed on an inlet side, an air passage formed therein, and a defrost vent, a face vent, and a floor vent formed on an outlet side, and air on the air passage of the air conditioning case. It includes a cooling means and a heating means installed sequentially in the flow direction, and a temperature control means for adjusting an opening so that the air passing through the cooling means selectively flows through the heating means, wherein the air passing through the cooling means is a warm air passage forming a passage to pass through the heating means; a first cold air passage through which the air passing through the cooling means bypasses the heating means; and a second cold air passage spaced apart from the first cold air passage and allowing air passing through the cooling means to bypass the heating means.

The vehicle air conditioner according to the present invention improves the mixing of cold air and warm air, reduces the width in the front and rear directions of the vehicle, efficiently uses the limited space inside the air conditioning case, and is manufactured while minimizing the operating radius of the temperature control door. Not only can the cost be reduced, but the defrosting role can be faithfully performed, and the driver's emotional dissatisfaction problem can be solved.

1 is a cross-sectional view showing a conventional vehicle air conditioner,
Figure 2 is a graph showing the change in outlet temperature according to the position of the temperature control door of the conventional vehicle air conditioner,
3 is a cross-sectional view showing an air conditioner for a vehicle according to an embodiment of the present invention;
4 is a perspective view illustrating a heater core and first and second cold air passages of an air conditioner for a vehicle according to an embodiment of the present invention;
5 illustrates a vent mode of an air conditioner for a vehicle according to an embodiment of the present invention;
6 illustrates a bi-level mode of an air conditioner for a vehicle according to an embodiment of the present invention;
7 illustrates a floor mode of an air conditioner for a vehicle according to an embodiment of the present invention;
8 illustrates a mix mode of an air conditioner for a vehicle according to an embodiment of the present invention;
9 illustrates a defrost mode of an air conditioner for a vehicle according to an embodiment of the present invention;
10 is a graph showing a change in outlet temperature according to a position of a temperature control door of an air conditioner for a vehicle according to an embodiment of the present invention;
11 is a diagram illustrating a temperature difference between a discharge port for each air conditioning mode of an air conditioner for a vehicle according to an embodiment of the present invention, compared with a conventional air conditioner.

Hereinafter, the technical configuration of the vehicle air conditioner will be described in detail according to the accompanying drawings.

3 is a cross-sectional view of an air conditioner for a vehicle according to an embodiment of the present invention, and FIG. 4 is a perspective view of a heater core and first and second cold air passages of the air conditioner for a vehicle according to an embodiment of the present invention. In the following description, the left and right directions in FIG. 3 are “vehicle forward and backward directions”.

3 and 4, the vehicle air conditioner 100 according to an embodiment of the present invention includes an air conditioning case 110, a blower (not shown), a cooling unit 102 and a heating unit 103, , a temperature control means and a mode door.

An air inlet 111 is formed on the inlet side of the air conditioning case 110, and an air outlet having a defrost vent 112a, a face vent 112b, a floor vent 112c, and a console vent 112d is formed on the outlet side. . In addition, an air passage is formed inside the air conditioning case 110 . The blower is connected to the air inlet 111 and serves to blow internal or external air into the air conditioning case 110 .

The cooling means 102 and the heating means 103 are sequentially installed in the air flow direction on the inner air passage of the air conditioning case 110 . In this embodiment, the cooling means 102 is composed of an evaporator for heat exchange between the refrigerant and air, and the heating means 103 is composed of a heater core for heat exchange between cooling water and air.

The mode door adjusts the opening of the air outlet, and includes the defrost door 116 for adjusting the opening of the defrost vent 112a, the vent door 117 for adjusting the opening of the face vent 112b, and the floor vent 112c. ) It consists of a floor door 118 for adjusting the opening degree and a console door 119 for adjusting the opening degree of the console vent (112d).

The temperature control unit adjusts the opening so that the air passing through the cooling unit 102 selectively flows through the heating unit 103 . The detailed configuration of the temperature control means will be described later.

The internal air passage of the air conditioning case 110 includes a warm air passage 270 , a first cold air passage 210 and a second cold air passage 220 . The warm air passage 270 forms a flow path so that the air passing through the cooling unit 102 passes through the heating unit 103 . The first cold air passage 210 forms a flow path so that the air passing through the cooling unit 102 bypasses the heating unit 103 . The second cold air passage 220 is spaced apart from the first cold air passage 210 and forms a flow path so that the air passing through the cooling means 102 bypasses the heating means 103 .

By configuring two cold air passages in the air passage of the air conditioning case 110, a plurality (two) of mixing zones in which cold air and warm air are mixed can be formed, compared to conventional air conditioners having one cold air passage. The number of mixing zones can be increased. As a result, as the cold air passage is added, the mixing of cold air and warm air in the air conditioning case 110 is improved, and the temperature difference between the air discharged into the vehicle interior can be reduced.

In addition, the cooling means 102 and the heating means 103 are disposed horizontally in the air conditioning case 110. In this case, the cooling means 102 and the heating means 103 do not need to be exactly horizontal, and it is sufficient to arrange them in a structure substantially horizontal. In addition, the air inlet 111 is formed in the lower part of the air conditioning case 110 . The air blown into the air inlet 111 through the blower flows from the lower part of the air conditioning case 110 to the upper part. An air inlet 111, a cooling means 102, and a heating means 103 are sequentially provided in the air flow direction, that is, from the bottom to the top.

As the cooling means 102 and the heating means 103 are arranged horizontally, the width of the air conditioning case 110 in the front-rear direction of the vehicle can be reduced. Due to this, it is possible to efficiently use the space in the vehicle. In addition, as the cooling means 102 composed of an evaporator is horizontally arranged, drainage is improved and odor generation can be prevented.

In the above, the mixing zone is formed in a form in which the first cold air passage 210 and the second cold air passage 220 surround both sides of the central warm air passage 270 . Due to the shape of the mixing zone, heat exchange between the cold air and the warm air is increased, and the temperature mixing property is improved.

More specifically, the first cold air passage 210 is provided between the heating means 103 and the inner wall of the air conditioning case on the engine room side in the front and rear directions of the vehicle, and the second cold air passage 220 is provided inside the vehicle in the front and rear directions of the vehicle. It is provided between the inner wall of the air conditioning case on the side and the heating means 103.

In addition, the warm air passage 270 is divided into two passages in the front-rear direction of the vehicle to form a first warm air passage and a second warm air passage. More specifically, a partition wall 252 is formed inside the air conditioning case 110 to divide the air flowing through the warm air passage 270 in the front and rear directions of the vehicle. The partition wall 252 is formed between the cooling means 102 and the heating means 103, and is formed below the heating means 103, that is, on the upstream side of the heating means 103 in the air flow direction.

The partition wall 252 divides the air passing through the cooling means 102 into the warm air passage 270 and guides the air to flow therethrough. The partition wall 252 is disposed approximately in the middle of the heating means 103 in the front-rear direction of the vehicle. The partition wall 252 is disposed at the inlet side of the heating means 103, and divides the air passing through it into two to enter the warm air passage 270.

That is, the air passing through the cooling means 102 and flowing toward the warm air passage 270 where the heating means 103 is formed is on the left side (engine room side) in FIG. 3 in the front-back direction of the vehicle based on the partition wall 252 It flows through the formed first warm air passage, or flows through the second warm air passage formed on the right side (vehicle interior side) in FIG.

As shown in FIG. 3 , the partition wall 252 is formed at a position spaced apart from the heating unit 103 by a predetermined distance in an upstream direction in the air flow direction. The air divided into the first warm air passage and the second warm air passage by the partition wall 252 meets again through the partition wall 252 and flows through one warm air passage 270 . In this case, the partition wall 252 is formed at a position spaced a predetermined distance from the heating means 103 upstream in the air flow direction and extends to the downstream side of the heating means 103 to partition the entire warm air passage 270. It is also possible to consist of If the length of the partition wall 252 is too long, the ventilation resistance of the warm air passage increases and the air volume decreases.

The temperature control unit includes a first temperature control door 230 and a second temperature control door 240 . The first temperature control door 230 is provided between the cooling means 102 and the heating means 103 and controls the opening degree of a part of the warm air passage 270 and the first cold air passage 210 . That is, the first temperature control door 230 controls the opening degrees of the first warm air passage and the first cold air passage 210 . The second temperature control door 240 is provided between the cooling means 102 and the heating means 103 and controls the opening of the second cold air passage 220 and another part of the warm air passage 270 . That is, the second temperature control door 240 controls the opening degrees of the second warm air passage and the second cold air passage 220 .

The temperature control means is composed of two, a first temperature control door 230 and a second temperature control door 240, and the first temperature control door 230 and the second temperature control door 240 are arranged side by side in the front and rear directions of the vehicle. As the opening of the two cold air passages and the two warm air passages is respectively controlled, reliability of temperature control may be improved by more precisely controlling the mixing of cold air and warm air. In addition, the structure comprising two temperature control doors in front and back can reduce the operating radius of the door compared to the structure consisting of one temperature control door, thereby relieving the constraints on the actuator driving the door.

The rotation of the first temperature control door 230 and the second temperature control door 240 is restricted by the partition wall 252 . Referring to FIG. 3, the rotation shaft of the first temperature control door 230 is located at the front end of the heating means 103, and when rotated clockwise to the maximum, touches a portion of the inner wall of the engine room side of the air conditioning case 110, It is rotationally driven to contact the partition wall 252 when it rotates counterclockwise to the maximum. The rotating shaft of the second temperature control door 240 is located at the rear side of the cooling means 102, and when rotated clockwise to the maximum, touches a part of the inner wall of the vehicle interior of the air conditioning case 110, and rotates counterclockwise to the maximum. When it is, it is rotationally driven to come into contact with the partition wall 252.

The partition wall 252 functions to divide the air passing through it into the first warm air passage and the second warm air passage, and limits the operating angles of the first temperature control door 230 and the second temperature control door 240. It also functions as a stopper. When the first temperature control door 230 is rotated clockwise to the maximum, the first cold air passage 210 is completely closed and the first warm air passage is opened, and when rotated counterclockwise to the maximum, the first cold air passage 210 is opened and the first warm air passage is completely closed. In addition, when the second temperature control door 240 is rotated clockwise to the maximum, the second cold air passage 220 is completely closed and the second warm air passage is opened, and when rotated counterclockwise to the maximum, the second cold air passage ( 220) is opened and the second warm air passage is completely closed.

One of the first temperature control door 230 and the second temperature control door 240 is made of a flat door, and the other is made of a dome door. In this embodiment, the first temperature control door 230 is composed of a flat door in the shape of a flat plate, and the second temperature control door 240 is composed of a dome door in the shape of a dome. However, the first temperature control door may be configured as a dome door and the second temperature control door may be configured as a flat door.

In this way, as one door is configured as a flat door and the other door is configured as a dome door, the operation radius of the door is reduced to solve the problem of driving the actuator and reduce manufacturing costs. If both doors are configured as flat doors, the operating radius of one door becomes large (for example, about 130°), which may cause problems in driving the actuator. If both doors are configured as dome doors, manufacturing costs increase. This is because the dome door has an advantage in operating radius compared to the flat door, but is expensive.

On the other hand, the air inlet 111, the cooling means 102, and the heating means 103 are sequentially arranged from the bottom to the top, and the defrost vent 112a and the face vent 112b are the air inlet 111, the cooling means 102 and the heating means 103 are formed on an extension line. In addition, the defrost vent 112a is disposed above the first cold air passage 210, the face vent 112b is disposed above the second cold air passage 220, and the floor vent 112c is disposed in the front-rear direction of the vehicle. It is disposed facing the second cold air passage 220 with the air conditioning case 110 as a wall on the interior side of the vehicle.

The distance between the discharge ports of the defrost vent 112a and the floor vent 112c is reduced, and air sufficiently mixed with cold and warm air can be equally discharged from the two mixing zones. In addition, the front inflow velocity of the heating unit 103 becomes uniform, and ventilation resistance of the warm air passage can be improved.

Referring to FIG. 4, the heating means (heater core: 103) is horizontally disposed between the inner wall surface of the air conditioning case 110 located on the engine room side and the inner wall surface of the air conditioning case 110 on the vehicle interior side, and The air introduced through it flows from the bottom to the top (direction of the arrow).

The heater core 103 includes a pair of header tank parts 1031, and each header tank part 1031 is spaced apart from each other in the front-rear direction of the vehicle. That is, one header tank unit 1031 is located on the engine room side, and the other header tank unit 1031 is located on the vehicle interior side. A plurality of tubes 1032 spaced apart in the longitudinal direction of the header tank unit are provided between the pair of header tank units 1031, and a flow path through which cooling water flows is formed inside the tubes 1032. A fin 1033 is provided between the plurality of tubes 1032 to improve heat exchange with air.

Both sides of the heater core 103 in the front and rear directions of the vehicle are supported and fixed by the support part 251 formed in the air conditioning case 110 . The support part 251 surrounds the header tank part 1031 of the heater core 103 to support and fix the heater core 103 . A first cold air passage 210 is formed between one side of the heater core 103 in the vehicle front and rear direction and an inner wall surface of the air conditioning case 110 located on the engine room side, and the heater core 103 moves in the vehicle front and rear direction. A second cold air passage 220 is formed between the other side and the inner wall surface of the air conditioning case 110 located on the vehicle interior side. That is, the first cold air passage 210 is formed between one support part 251 and the inner wall surface of the air conditioning case 110 located on the engine room side, and the other support part 251 and the air conditioning located on the vehicle interior side. A second cold air passage 220 is formed between the inner wall surface of the case 110 .

The separator 250 may be provided at an intermediate portion in the vehicle width direction, that is, in the longitudinal direction of the header tank portion. The separator 250 is for performing left and right independent air conditioning of the vehicle, and can be mainly applied to an air conditioner installed in a large vehicle. However, an air conditioner implementing left and right independent air conditioning may be applied to a small vehicle, and in this case, a separator may be provided inside the air conditioning case. The separator 250 is a means for partitioning the inside of the air conditioning case in the left and right directions of the vehicle to separately control the air conditioning of the driver's seat and the front passenger seat of the vehicle, and is distinguished from the two cold air passages and the two warm air passages formed in the front and rear directions of the vehicle according to the present invention. do.

That is, when the separator 250 is applied to the present invention, strictly speaking, the first cold air passage 210 is again divided into two cold air passages by the separator 250, and the second cold air passage 220 is also separated by the separator 250. ), it is again divided into two cold air passages. In addition, the first warm air passage is further divided into two warm air passages by the separator 250, and the second warm air passage is further divided into two warm air passages by the separator 250. As a result, the separator 250 is provided inside the air conditioning case 110, so that a total of four cold air passages and four warm air passages are formed.

On the other hand, a bi-level mode for discharging air to the face vent 112b and the floor vent 112c and a mix mode for discharging air to the defrost vent 112a and the floor vent 112c (Mix Mode) ), the first temperature control door 230 opens a part of the first cold air passage 210 and the warm air passage 270, and the second temperature control door 240 opens the second cold air passage 220 and the warm air passage. Open another part of 270. Through this configuration, the mixing of cold air and warm air is improved in the bi-level mode and the mixed mode, so that the role of defrosting is improved and the driver's emotional dissatisfaction problem can be solved.

5 illustrates a vent mode of an air conditioner for a vehicle according to an embodiment of the present invention. 5 , in the vent mode, the first temperature control door 230 closes the first warm air passage and opens the first cold air passage 210, and the second temperature control door 240 2 The warm air passage is closed and the second cold air passage 220 is open. And, the defrost door 116 closes the defrost vent 112a, the floor door 118 closes the floor vent 112c, the vent door 117 opens the face vent 112b, and the console The door 119 opens the console vent 112d. The air introduced into the air inlet 111 is cooled by passing through the evaporator 102 and then discharged into the vehicle interior through the face vent 112b and the console vent 112d.

6 illustrates a bi-level mode of an air conditioner for a vehicle according to an embodiment of the present invention. As shown in FIG. 6 , in the bi-level mode, the first temperature control door 230 opens both the first warm air passage and the first cold air passage 210, and the second temperature control door 240 opens the Both the two warm air passages and the second cold air passage 220 are open. And, the defrost door 116 closes the defrost vent 112a, the console door 119 closes the console vent 112d, the vent door 117 opens the face vent 112b, and the floor The door 118 opens the floor vent 112c.

Some of the air introduced into the air inlet 111 is cooled after passing through the evaporator 102 and the other part is heated through the heater core 103, and then mixed in two mixing zones, and then the face vent 112b and the floor vent ( 112c) is discharged into the vehicle interior. In this case, one of the two mixing zones is a section in which the cold air passing through the first cold air passage 210 and the warm air passing through the first warm air passage are mixed, and the other mixing zone is the second cold air passage ( 220) is a section where the cold air passing through and the warm air passing through the second warm air passage are mixed.

7 illustrates a floor mode of an air conditioner for a vehicle according to an embodiment of the present invention. As shown in FIG. 7 , in the floor mode, the first temperature control door 230 opens the first warm air passage and closes the first cold air passage 210, and the second temperature control door 240 2 The warm air passage is open and the second cold air passage 220 is closed. And, the defrost door 116 closes the defrost vent 112a, the vent door 117 closes the face vent 112b, the console door 119 closes the console vent 112d, and the floor The door 118 opens the floor vent 112c. The air introduced into the air inlet 111 is heated through the heater core 103 and then discharged into the vehicle interior through the floor vent 112c.

8 illustrates a mix mode of an air conditioner for a vehicle according to an embodiment of the present invention. As shown in FIG. 8 , in the mixed mode, the first temperature control door 230 opens both the first warm air passage and the first cold air passage 210, and the second temperature control door 240 opens the second temperature control door 240. Both the warm air passage and the second cold air passage 220 are open. And, the defrost door 116 opens the defrost vent 112a, the console door 119 closes the console vent 112d, the vent door 117 closes the face vent 112b, and the floor The door 118 opens the floor vent 112c. Some of the air introduced into the air inlet 111 is cooled after passing through the evaporator 102 and the other part is heated through the heater core 103 and then mixed in two mixing zones through the defrost vent 112a and the floor vent It is discharged into the vehicle interior through (112c).

9 illustrates a defrost mode of an air conditioner for a vehicle according to an embodiment of the present invention. As shown in FIG. 9 , in the defrost mode, the first temperature control door 230 opens the first warm air passage and closes the first cold air passage 210, and the second temperature control door 240 The second warm air passage is open and the second cold air passage 220 is closed. And, the defrost door 116 opens the defrost vent 112a, the vent door 117 closes the face vent 112b, the console door 119 closes the console vent 112d, and the floor The door 118 closes the floor vent 112c. The air introduced into the air inlet 111 is heated through the heater core 103 and then discharged into the vehicle interior through the defrost vent 112a.

10 is a graph showing a change in outlet temperature according to the position of a temperature control door of an air conditioner for a vehicle according to an embodiment of the present invention, and FIG. 11 is a discharge port for each air conditioning mode of an air conditioner for a vehicle according to an embodiment of the present invention. The temperature difference is shown in comparison with the conventional one.

Referring to FIGS. 10 and 11 , the temperature difference between the outlets on the floor vent 112c side and the defrost vent 112a side is less than 12°C. In FIG. 10 , the horizontal axis represents the rotation angle of the temperature control door. When the rotation angle is 0, the maximum cooling (Max Cool) state, and when the rotation angle is 8, the maximum heating (Max Warm) state. These experimental results show that, compared to the structure of one cold air passage and one warm air passage, the effect of improving the mixing of cold air and warm air as the structure of two cold air passages and two warm air passages forms two mixing zones. indicate

Referring to FIG. 11, in the bi-level mode, the temperature difference between the face vent and the floor vent in the prior art was 30.4 °, but in the present invention, the temperature difference between the face vent and the floor vent was 5 °, and the mixing performance was improved by -25.4 °. . In addition, in the case of the mix mode, the temperature difference between the defrost vent and the floor vent was 22.4 ° in the prior art, but in the present invention, the temperature difference between the defrost vent and the floor vent was 11.0 °, and the mixing performance was improved by -11.4 °. It was confirmed.

So far, the vehicle air conditioner according to the present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and anyone skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true scope of technical protection should be determined by the technical spirit of the appended claims.

100: vehicle air conditioner
110: air conditioning case 111: air inlet
112a: defrost vent 112b: face vent
112c: floor vent 112d: console vent
102: cooling means (evaporator) 103: heating means (heater core)
1031: header tank portion 1032: tube
1033: pin
116: defrost door 117: vent door
118: floor door 119: console door
210: first cold air passage 220: second cold air passage
230: first temperature control door 240: second temperature control door
250: separator 251: support
252: partition wall

Claims (11)

An air conditioning case 110 having an air inlet 111 formed on the inlet side, an air passage formed therein, and a defrost vent 112a, a face vent 112b, and a floor vent 112c formed on the outlet side, and the air conditioning A cooling unit 102 and a heating unit 103 are sequentially installed in the air flow direction on the air passage of the case 110, and the air passing through the cooling unit 102 selectively flows through the heating unit 103. In the vehicle air conditioner including a temperature control means for adjusting the opening degree,
a warm air passage 270 forming a flow path so that the air passing through the cooling means 102 passes through the heating means 103;
a first cold air passage 210 for allowing the air passing through the cooling means 102 to bypass the heating means 103; and
A second cold air passage 220 spaced apart from the first cold air passage 210 and allowing the air passing through the cooling means 102 to bypass the heating means 103,
The air inlet 111 is formed in the lower part of the air conditioning case 110;
The cooling means 102 and the heating means 103 are disposed horizontally in the air conditioning case 110,
The first cold air passage 210 is provided between the heating means 103 and the inner wall of the air conditioning case on the engine room side in the front and rear directions of the vehicle;
The second cold air passage 220 is provided between the heating means 103 and the inner wall of the air conditioning case on the interior side of the vehicle in the front and rear directions of the vehicle,
The defrost vent 112a is disposed above the first cold air passage 210, the face vent 112b is disposed above the second cold air passage 220, and the floor vent 112c is disposed at the front and rear of the vehicle. It is disposed facing the second cold air passage 220 with the air conditioning case 110 as a wall on the interior side of the vehicle in the direction,
A partition wall partitioning the second cold air passage 220 and the floor vent 112c is bent toward the downstream side of the heating means 103,
The partition wall is an air conditioner for a vehicle, characterized in that formed to extend to partially cover the upper portion of the heating means (103). delete delete According to claim 1,
The warm air passage (270) is an air conditioner for a vehicle, characterized in that the passage is divided into two in the front-rear direction of the vehicle to form a first warm air passage and a second warm air passage. According to claim 1,
The temperature control means is:
a first temperature control door (230) provided between the cooling means (102) and the heating means (103) and adjusting the opening degree of a part of the warm air passage (270) and the first cold air passage (210); and
A second temperature control door 240 is provided between the cooling means 102 and the heating means 103 and adjusts the opening degree of the other part of the warm air passage 270 and the second cold air passage 220. Vehicle air conditioner, characterized in that to do. According to claim 5,
A partition wall 252 is formed inside the air conditioning case 110 to divide the air flowing through the warm air passage 270 in the vehicle front-rear direction, and the partition wall 252 divides the heating means 103 in the vehicle front-rear direction. ), and the rotation of the first temperature control door (230) and the second temperature control door (240) is limited by the partition wall (252). According to claim 5,
The vehicle air conditioner, characterized in that one of the first temperature control door 230 and the second temperature control door 240 is made of a flat door, and the other is made of a dome door. According to claim 4,
The air inlet 111, the cooling means 102 and the heating means 103 are sequentially arranged from bottom to top;
The defrost vent (112a) and the face vent (112b) are characterized in that formed on a line extending to the upper part of the air inlet 111, the cooling means 102 and the heating means 103. Vehicle air conditioner. delete According to claim 5,
Bi-level mode in which air is discharged to the face vent (112b) and floor vent (112c) side and mix mode (Mix Mode) in which air is discharged to the defrost vent (112a) and floor vent (112c) side ,
The first temperature control door 230 opens a part of the first cold air passage 210 and the warm air passage 270, and the second temperature control door 240 opens the second cold air passage 220 and the warm air passage ( 270), an air conditioner for a vehicle, characterized in that the other part is opened. According to claim 1,
An air conditioner for a vehicle, characterized in that a mixing zone is formed in a form in which the first cold air passage 210 and the second cold air passage 220 surround both sides of the central warm air passage 270.

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