KR20050111251A - Air conditioner for vehicle - Google Patents

Abstract

The present invention relates to a vehicle air conditioner, wherein the air passing through the heater core is directly bypassed to the defrost vent through the center of the air conditioning case, thereby improving the defrost performance and reducing the air volume toward the side floor vent located on the side. In the case of the air conditioning apparatus which can be reduced and partitioned from side to side by the divider, it is an object of the present invention to be able to manufacture the bypass passage integrally with the divider.

According to the air conditioning apparatus according to the present invention, a bypass passage 132 extending from the rear passage 122 of the heater core toward the defrost vent 112 is installed at the center portion in the width direction of the internal passage of the air conditioning case 110. do. The bypass passage 132 is preferably formed integrally with the partition plate when the internal flow path of the air conditioning case 110 is partitioned left and right by the partition plate 140 on the basis of the width direction.

Description

Automotive air conditioning unit {AIR CONDITIONER FOR VEHICLE}

The present invention relates to a vehicle air conditioner, and more particularly, the heater core so that the temperature of the air discharged to the defrost vent is lower than the temperature discharged to the face vent The present invention relates to a vehicle air conditioner capable of bypassing warmth through a heater core to a defrost vent through a central portion of an air conditioning case.

In general, an air conditioning apparatus of a semi-center mounting type or an air conditioning apparatus of a center mounting type includes an air conditioner in which an evaporator and a heater core are embedded in a single air conditioning case side by side. As a semi-center type air conditioner, the blower is connected to the inlet side of the air conditioning case as an independent unit, and the center type air conditioner is installed at the inlet side of the air conditioning case as an integral unit. It is miniaturized in size.

FIG. 4 shows an example of a semi-center type air conditioner as an example of a vehicle air conditioner. The air conditioning apparatus includes an air conditioner case 10 having a defrost vent 12, a face vent 14, and a floor vent 16 having openings controlled at doors by doors 12d, 14d, and 16d, respectively. And an air blower (not shown) connected to the inlet of the air conditioning case 10 to blow inside and / or outside air, and an evaporator E installed upstream of the internal flow path of the air conditioning case 10. Heater core (H) installed on the downstream side of the internal flow path of the air conditioning case (10) and the flow path that is installed in front of the heater core (H) to bypass the flow path on the heater core (H) side and the heater core (H) And a guide wall 22 for partitioning the rear channel and the floor vent 16 of the heater core H. Therefore, the air blown by the blower is exchanged with the refrigerant flowing through the inside of the evaporator (E) while passing through the evaporator (E) and converted into a cold, and then into the vehicle interior through the open vents (12, 14, 16). Cooling of the vehicle interior is performed by discharging. In addition, when the blower air passing through the evaporator (E) passes through the heater core (H), the vents (12, 14, 16) opened while the heat exchanger with the coolant flowing through the inside of the heater core (H) changes to warmth The heating of the vehicle interior is performed by discharging the vehicle interior through the vehicle. On the other hand, even when the refrigerant flows through the inside of the evaporator (E) or winter does not drive, the temperature of the outlet can be adjusted according to the opening degree of the heater core (H) side by the temperature control door 20.

In such an air conditioning apparatus, the side vent (Side Floor Vent) 17 may be branched to both sides of the floor vent 16. In some cases, as disclosed in Japanese Patent Laid-Open No. 2000-71748, the face vent also has a center face vent for discharging air toward the front passenger and a side face for discharging air toward the rear passenger. It can be divided into Side Face Vents.

However, in the conventional air conditioner as described above, in the case of the mixed mode in which air is discharged to the vehicle interior through, for example, the defrost vent 12, the face vent 14, and the floor vent 16, the defrost vent 12 ), The temperature of the air discharged to the lower than the temperature of the air discharged through the face vent (14), the defrost performance is lowered, and this causes a problem that freezing occurs in the windshield. In addition, even in a structure in which air is discharged to the defrost vent and the floor vent without the side vent structure, the defrost vent discharge temperature is low, thereby degrading performance.

In order to solve this problem, conventionally, as shown in FIG. 5, a technique in which a pair of bypass consoles 30 and 30 are extended from both sides of the rear channel of the heater core H toward the defrost vent 12 is proposed. It has been. The technique directs the air passing through the heater core (H) to the defrost vent 12 directly through the bypass passage 32 of each bypass console 30, thereby defrost vent 12. It is to prevent the temperature of the air discharged through the lower than the temperature of the discharged air through the face vent (14).

However, according to the structure of the conventional bypass console 30 described above, when the side floor vents 17 and 17 are branched on both sides of the floor vent 16, the side floors are formed by the bypass consoles 30. There is a problem that the flow volume of the air discharged to the vents 17 and 17 is reduced to reduce the air volume. In addition, since the bypass console 30 is formed on both sides of the air conditioning case 10, the assembly parts increase due to the increase of the assembly labor, and this problem is caused by a partition plate partitioning the internal flow path of the air conditioning case 10 from side to side ( 40) (refer FIG. 5) is further weighted.

The present invention has been made to solve the above-mentioned conventional problems, by allowing the air passing through the heater core to be bypassed directly to the defrost vent through the center of the air conditioning case, to prevent the temperature drop of the air discharged toward the defrost vent The aim is to provide a vehicle air conditioning system that can improve the defrost performance and reduce the airflow toward the side floor vents located on the side.

Another object of the present invention is to enable the bypass passage to be integrally manufactured together with the divider in the case of the air conditioning apparatus divided left and right by the divider.

In order to achieve the above object, the present invention, the air-conditioning case is provided with a blower at the inlet, the defrost vent, the face vent and the floor vent is adjusted to the opening degree by the door at each outlet; An evaporator and a heater core sequentially installed on the upstream and downstream sides of the internal flow path of the air conditioning case; A temperature control door installed at the front of the heater core to adjust an opening degree of a flow path bypassing the heater core and a flow path bypassing the heater core; And a guide wall provided inside the air conditioning case so as to partition the rear flow passage and the floor vent of the heater core, wherein the heater core has a central portion in the width direction of the internal flow passage of the air conditioning case. And a bypass passage extending from the rear passage toward the defrost vent to bypass the air.

In addition, the bypass passage may be integrally formed. In addition, the bypass passage is preferably formed integrally with the partition plate when the internal flow path of the air conditioning case is partitioned left and right by the partition plate on the basis of the width direction.

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

1 shows an example of a vehicle air conditioning apparatus according to the present invention, a center mounting type air conditioning apparatus is shown, and FIG. 2 shows an example of a vehicle center air conditioning apparatus according to the present invention, a semi center mounting type air conditioning apparatus. .

That is, as shown in FIG. 1, the center mounting type air conditioner includes an air conditioner case 110, an air blower 100 integrated at an inlet side of the air conditioner case 110, and an internal flow path of the air conditioner case 110. It has an evaporator (E) and a heater core (H) which are sequentially installed on the upstream and downstream sides. In the air conditioning apparatus of the semi-center mounting type, as shown in FIG. 2, an air blower (not shown) is separately connected to an inlet of the air conditioning case 110 as an independent unit. However, any type of air conditioning case 110 is provided. The internal structure of the) and the installation structure of the evaporator (E) and the heater core (H) for the air conditioning case 110 may be equally applied.

The blower 100 is integrally installed at the inlet of the air conditioning case 110 and has a scroll case 102 for selectively opening / closing the inside / outside air inlet by a switching door (not shown), and the scroll case 102. It is composed of a centrifugal fan 104 rotatably installed by a motor (not shown) installed inside the.

Each outlet of the air conditioning case 110 is provided with a defrost vent 112, a face vent 114, and a floor vent 116 whose opening degree is controlled by respective doors 112d, 114d, and 116d. That is, the defrost vent 112 discharges the conditioned air toward the windshield, the face vent 114 discharges the conditioned air toward the passenger, and the floor vent 116 discharges the conditioned air toward the floor. Function A pair of side floor vents 117 and 117 may branch to both sides of the floor vent 116.

Therefore, the air blown by the smelter is exchanged through the evaporator (E) and / or the heater core (H) to change into cold or warm air, and then the vehicle through the open one of the vents (112, 114, 116). By being discharged into the room, cooling or heating of the car interior is performed.

In front of the heater core (H), the air flow path bypassing the heater core (H) and the flow path bypassing the heater core (that is, the air passing through the evaporator (E) without passing through the heater core (H) the vents A temperature control door 120 for selectively adjusting the opening degree of the flow path flowing toward (112, 114, 116) is provided, and the guide wall 124 is located behind the heater core (H). The rear channel 122 and the floor vent 116 are integrally installed inside the air conditioning case 110.

According to the present invention, for example, in the Mix mode, by supplying the heated warm air through the heater core (H) toward the defrost vent 112, to compensate for the temperature difference with the air discharged toward the face vent 114 On the other hand, in order to improve the defrost performance, the internal passage of the air conditioning case 110 extends from the rear passage 122 of the heater core (H) toward the defrost vent 112 to bypass the air. Bypass passage 132 is installed. That is, the inlet side of the bypass passage 132 (that is, the upper end portion) is connected to the end of the guide wall 124, the exit passage of the bypass passage 132 toward the defrost vent 112, the bypass passage 132 is integrally installed in the air conditioning case (110). Therefore, a part of the air passing through the heater core H can flow toward the defrost vent 112 through the bypass passage 132 via the rear passage 122 of the heater core H, and the heater core. The remainder of the air passing through (H) flows toward the open vents 112, 114, and 116 via the rear flow passage 122.

As shown in FIG. 3, the bypass passage 132 is installed at a central portion of the internal passage of the air conditioning case 110 based on the width direction. As the bypass passage 132 is formed in the width direction center of the air conditioning case 110, for example, when the internal flow path of the air conditioning case 110 is divided left and right by the partition plate 140 based on the width direction. In addition, the bypass passage 132 may be integrally formed with the partition plate 140.

According to the vehicle air conditioner according to the present invention configured as described above, for example, in the mixed mode, the heater core (H) side flow path is opened by a predetermined opening degree by the temperature control door 120 and each vent (112, 114, When the air is blown by the blower 100, the air blown by the blower 100 passes through the evaporator E and flows into the flow path bypassing the heater core H side and the heater core H, thereby providing respective vents ( Discharge into the interior of the vehicle via 112, 114, 116. At this time, a part of the blowing air passing through the heater core H flows directly to the defrost vent 112 through the bypass passage 132 along the guide wall 124, thereby causing the defrost vent 112 to flow. It is possible to prevent the temperature of the air discharged through the temperature is lower than the temperature of the discharged air through the face vent (114).

As described above, according to the automotive air conditioner according to the present invention, the face vent by bypassing a part of the air passing through the heater core (H) directly to the defrost vent 112 through the bypass passage 132. The temperature difference between the discharge air of the defrost vent 112 and the discharge air of the 114 air can be compensated for, and the defrost performance can be improved. In addition, as the bypass passage 132 is installed at the center of the internal passage of the air conditioning case 110, the air volume reduction toward the side floor vent 117 can be reduced, thereby improving the performance of the air conditioning apparatus.

In addition, according to the present invention, since the temperature drop of the discharge air toward the defrost vent 112 can be prevented by one bypass passage 132, the number of parts can be reduced and the assembly productivity can be improved.

Further, according to the present invention, as the bypass passage 132 is installed in the center of the internal passage of the air conditioning case 110, the partition plate 140 for dividing the internal passage of the air conditioning case 100 from side to side in the width direction. ), The bypass passage 132 and the partition plate 140 can be integrally formed, so that the assembly productivity can be further improved.

1 is a cross-sectional view showing a center mounting type air conditioner as a vehicle air conditioner according to the present invention.

2 is a cross-sectional view showing a semi-center type air conditioner as a vehicle air conditioner according to the present invention.

3 is a view for explaining the position of the bypass passage in the vehicle air conditioner according to the present invention.

4 is a cross-sectional view showing an example of a semi-center type air conditioner as a general automotive air conditioner.

Figure 5 is a view for explaining a vehicle air conditioner conventional bypass passage is provided on both sides.

** Description of symbols for the main parts of the drawing **

100: blower, 110: air conditioning case,

112: Defrost Vent,

112d, 114d, 116d: Door,

114: Face Vent, 116: Floor Vent,

120: temperature control door,

122: rear flow path of the heater core,

124: guide wall, 132: bypass passage,

140: divider, E: evaporator,

H: Heater core.

Claims (2)

The blower 100 is installed at the inlet, and the defrost vent 112, the face vent 114, and the floor vent whose openings are controlled by the doors 112d, 114d, and 116d at the outlet, respectively. An air conditioning case 110 in which Vent 116 is installed; An evaporator (E) and a heater core (H) that are sequentially installed on the upstream and downstream sides of the internal flow path of the air conditioning case; A temperature control door (120) installed in front of the heater core to adjust an opening degree of the flow path bypassing the heater core and the flow path toward the heater core; In addition, in the automotive air conditioner comprising a guide wall 124 installed inside the air conditioning case so as to partition the rear flow passage 122 and the floor vent 116 of the heater core: The bypass passage 132 extending to the defrost vent from the rear passage 122 of the heater core to bypass the air in the central portion of the inner flow path of the air conditioner case is further provided for the automobile. Air conditioning system. The method of claim 1, The bypass passage 132, when the internal flow path of the air conditioning case 110 is divided into left and right by the partition plate 140 on the basis of the width direction, the automobile, characterized in that formed integrally with the partition plate Air conditioning system.