KR20110003756A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE: An air conditioning device for a vehicle is provided to reduce a temperature difference of air discharged from an air conditioning case by forming a gap controller. CONSTITUTION: An air conditioning device for a vehicle comprises an air conditioning case(110), a defrost door, a center pivot type face door(122), and a floor door. The air conditioning case has an air inlet, a defrost vent, a face vent(114), and a floor vent. The face vent is composed of a center vent(114a) and a side vent. The defrost door opens and closes the defrost vent. The center pivot type face door opens and closes the face vent and has a center door(122a) and a side door(122b). The floor door opens and closes the floor vent.

Description

Automotive air conditioning unit {AIR CONDITIONER FOR VEHICLE}

The present invention relates to a vehicle air conditioner, and more particularly, the inner wall surface of the center vent and the side vent so that the distance between the center door portion and the center vent inner wall surface and the side door portion and the side vent inner wall surface are the same. By forming a gap adjusting means on at least one of the wall surface, the air volume discharged to the center vent and the side vents is uniform, and relates to a vehicle air conditioner that can reduce the left and right temperature difference of the air discharged from the air conditioning case.

The vehicle air conditioner is a vehicle interior that is installed for the purpose of securing the driver's front and rear view by removing the frost, which is caught in the windshield during the rainy season or the winter, or by cooling or heating the interior of the car during the summer or winter. The air conditioner is generally equipped with a heating device and an air conditioner 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 conditioner includes a three piece type in which the three units are independently provided, and an evaporator unit and the heater core unit in the air conditioning case. It can be divided into semi-center type (Central Center type) that is built in the air blower unit is provided as a separate unit, and the center mounting type (Center Mounting Type) that all three units are built in the air conditioning case.

1 is a cross-sectional view showing a bi-level mode of a conventional vehicle air conditioner, Figure 2 is a perspective view showing a conventional vehicle air conditioner, Figure 3 is a partial perspective view showing a state in which the face door is assembled to the face vent in FIG. 4 is a partial perspective view illustrating a state in which the face door is disassembled from the face vent in FIG. 2, and FIG. 5 is an enlarged cross-sectional view illustrating a portion in which the face door is installed in FIG. 1. An air inlet 11 is formed, and the air outlet case is formed on the outlet side with an air outlet 12 including a defrost vent 12a, a face vent 12b, and floor vents 12c and 12d, each of which has an opening degree controlled by a mode door. 10; A blower (not shown) connected to the air inlet 11 of the air conditioning case 10 to blow the inside or outside air; An evaporator (2) and a heater core (3) embedded in the air conditioning case (10); The opening degree of the cold air passage P1 installed between the evaporator 2 and the heater core 3 and bypassing the heater core 3 and the hot air passage P2 passing through the heater core 3 is determined. It comprises a temperature control door 13 to adjust.

In addition, the floor vents 12c and 12d are divided into a front seat vent 12c and a rear seat vent 12d, and the face vent 12b is a center vent that blows air to the center of the vehicle interior. 12e and a side vent 12f for blowing air to both sides of the vehicle interior, wherein the center vent 12e and the side vent 12f are partitioned by a partition wall 17.

In addition, a through groove 17a is formed at a lower end of the dividing wall 17 so that a portion (radius) of the rotation shaft 15c of the face door 15 to be described below is penetrated, and a penetration of the lower part of the dividing wall 17 is performed. The sealing surface portions 17b and 17c are bent and formed on both sides in the radial direction in the groove 17a to be in surface contact with the face door 15 to improve the sealing property.

The mode door may include a defrost door 14 for adjusting the opening degree of the defrost vent 12a, a face door 15 for adjusting the opening degree of the face vent 12b, and a floor vent 12c, 12d. It consists of the floor door 16 which adjusts an opening degree.

Here, the face door 15 is a center pivot type door, and a center door part 15a for opening and closing the center vent 12e by forming plates on both sides of the rotating shaft 15c, respectively, It consists of a side door part 15b which opens and closes the side vent 12f. At this time, the center door part 15a is provided at the center position of the rotation shaft 15c, and the side door part 15b is provided at both sides of the center door part 15a.

In addition, the center door part 15a and the side door part 15b are formed to be separated from each other. At this time, at least one side should be separated around the rotation shaft 15c, and both sides may be separated.

That is, as shown in FIGS. 3 and 4, the center door part 15a is alternately assembled to sealing surface parts 17b and 17c formed at both sides of the through hole 17a of the dividing wall 17, that is, the rotating shaft 15c. The center door portion 15a is in contact with the upper surface of the one sealing surface portion 17b and the other center door portion 15a is in surface contact with the lower surface of the other sealing surface portion 17c. Therefore, the center door unit 15a may be rotated only when at least one side of the center door unit 15a is separated from the side door unit 15b.

As such, the face door 15 is pushed in the axial direction when assembled to the air conditioning case 10 because the center door part 15a is to be assembled to both sealing surface parts 17b and 17c of the partition wall 17 alternately. The side door part 15b is caught by the dividing wall 17, and assembling is impossible.

Therefore, at least one side door portion 15b is formed to be stepped with the center door portion 15a around the rotation shaft 15c.

As described above, when the side door part 15b is formed to be stepped with the center door part 15a, the side door part 15b is divided by the partition wall 15 when the face door 15 is assembled in the axial direction of the air conditioning case 10. 17 can be assembled without being caught, as well as the center door portion 15a is assembled with the sealing surfaces 17b and 17c on both sides of the dividing wall 17 alternately.

On the other hand, the air discharge port 12 side is connected to the duct (not shown) is supplied to the air discharged from the air discharge port 12 to each part of the vehicle interior.

In addition, the temperature control door 13 and the mode door is connected to an actuator (not shown) or a cam (not shown) or a lever (not shown) driven by an actuator, which is a driving means installed on the outer surface of the air conditioning case 10. And drive.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is operated, the temperature control door 13 opens the cold air flow passage P1 and closes the hot air flow passage P2. do. Accordingly, the air blown by the blower not shown is heat-exchanged with the refrigerant flowing through the evaporator 2 while passing through the evaporator 2 to be changed into cold, and then the mixing chamber (Mixing) through the cold air flow path (P1) Chamber, and flows toward the chamber (MC), and is then discharged to the vehicle interior through the vent (12a ~ 12d) that is opened according to a predetermined air conditioning mode (vent mode, bi-level mode, floor mode, mix mode, defrost mode), Cooling of the vehicle interior is performed.

In addition, when the maximum heating mode is activated, the temperature control door 13 closes the cold air flow passage P1 and opens the hot air flow passage P2. Accordingly, the air blown by the blower not shown is heat-exchanged with the coolant flowing through the inside of the heater core 3 while passing through the heater core 3 through the hot air flow passage P2 after passing through the evaporator 2. After changing to warmth, it flows toward the mixing chamber MC, and is then discharged into the vehicle interior through vents 12a to 12d that are opened according to a predetermined air conditioning mode, thereby heating the vehicle interior.

On the other hand, when the cooling mode other than the maximum cooling mode, that is, 1/2 cooling mode is operated, the temperature control door 13 is rotated to the neutral position, the cooling air flow path (P1) with respect to the mixing chamber (MC) And open all the hot air flow path (P2). Therefore, after the cool air passing through the evaporator 2 and the warm air passing through the heater core 3 are mixed by flowing toward the mixing chamber MC, the vents 12a to 12d are opened to the vehicle interior through the air conditioning mode. Discharged.

In the air-conditioning mode, the bi-level mode is a mode in which the face vents 12b and the floor vents 12c and 12d are opened as shown in FIG. 1 and pass through the cooler and the heater core 3 that have passed through the evaporator 2. One warm air is mixed in the mixing chamber MC and discharged to the face vents 12b and the floor vents 12c and 12d, respectively.

In addition, in the face vent 12b, the air mixed in the mixing chamber MC is separated into the front side (distant to the evaporator) and the rear side (near to the evaporator) by the face door 15 located in a substantially vertical direction. In this case, there is a problem that the left and right temperature difference occurs between the center vent 12e and the side vent 12f due to the discharge of cold air unmixed from the mixing chamber MC at the rear side of the face door 15. .

That is, the rear side of the face door 15 is a portion in which the center door part 15a and the side door part 15b are formed step by step, and as a result, as shown in FIG. 5, the center door part 15a and the center vent are inside. The distance L1 between the wall surface 18 and the distance L2 between the side door portion 15b and the side vent inner wall surface 18 are different from each other so that the air volume discharged to the center vent 12e and the side vent 12f is uniform. There was a problem in that the left, right temperature difference of the air discharged from the air conditioning case 10 eventually occurs.

SUMMARY OF THE INVENTION An object of the present invention for solving the above-described problems is that the inner wall surface of the center vent and the inner wall surface of the side vent have the same spacing between the inner wall surface of the center vent and the inner side of the center vent. By providing a gap adjusting means in at least one of the above, the air volume discharged to the center vent and the side vent is uniform, to provide a vehicle air conditioner that can reduce the left, right temperature difference of the air discharged from the air conditioning case.

The present invention for achieving the above object, the air inlet is formed on the inlet side, the defrost vent, face vent, floor vent is formed on the outlet side, respectively, the face vent center vents and side vents on both sides The air conditioner case is divided into a configuration, a defrost door which is installed to open and close the defrost vent, and is installed to open and close the face vent, respectively formed on both sides of the rotating shaft (15c) to open and close the center vent A center pivot type face door having a center door part and a side door part for opening and closing a side vent, and a floor door for opening and closing the floor vent, wherein the distance between the center door part and the center vent inner wall surface is provided. And an inner wall surface of the center vent so that the space between the side door part and the side vent inner wall surface is the same. At least one of the inner wall surface of the beads, the vent gap adjusting means is formed, characterized in that the air flow is discharged into the center vent and side vent to be uniform.

The present invention provides a gap adjusting means on at least one of the inner wall surface of the center vent and the inner wall surface of the side vent so that the distance between the center door portion and the inner wall of the center vent and the inner wall surface of the side vent are equal. As a result, the air volume discharged to the center vent and the side vent becomes uniform, so that the left and right temperature differences of the air discharged from the air conditioning case can be reduced, thereby eliminating the discomfort of the passengers.

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

6 is a perspective view showing a vehicle air conditioner according to the present invention, Figure 7 is a partial perspective view showing a state in which the face door is disassembled from the face vent in Figure 6, Figure 8 is a face door is assembled to the face vent in Figure 6 9 is a cross-sectional view showing a bi-level mode of the vehicle air conditioner according to the present invention. FIG. 10 is an enlarged cross-sectional view showing a portion in which a face door is installed in FIG. 9, and FIG. 11 is a face in FIG. 9. An enlarged cross-sectional view illustrating a state in which a door is closed with a face vent.

As shown, the vehicle air conditioner 100 according to the present invention, the air inlet 111 is formed on the inlet side and the plurality of air outlet 112 is formed on the outlet side and the cold air flow path (P1) on the inside air passage ) And an air conditioner case 110 having a warm air flow passage P2, an evaporator 101 and a heater core 102 installed on an air passage inside the air conditioning case 110, the evaporator 101 and a heater. The temperature control door 120 is installed between the cores 102 and adjusts the opening degree of the cold air flow passage P1 bypassing the heater core 102 and the hot air flow passage P2 passing through the heater core 102. It is configured to include).

In addition, an air inlet 111 of the air conditioning case 110 is provided with a blower (not shown) for blowing inside or outside air.

The plurality of air discharge ports 112 formed at the exit side of the air conditioning case 110 may include a defrost vent 113 for discharging air toward the windshield of the vehicle and a discharge air toward the face of the front occupant. And face vents 114 and floor vents 115 and 116 for discharging air toward the occupants' feet.

The face vent 114 is divided into a center vent 114a and a side vent 114b so as to divide and discharge air into the center side and both sides of the vehicle interior, respectively.

The center vent 114a and the side vent 114b are divided by the dividing wall 117 formed inside the face vent 114, wherein the center vent 114a is the center of the face vent 114. The side vent 114b is positioned at both sides of the center vent 114a.

A through groove 117a is formed at a lower end of the dividing wall 117 to allow a portion (radius) of the rotation shaft 122c of the face door 122 to be described below, and a through groove (under the bottom of the dividing wall 117) Sealing surface portions 117b and 117c are bent and formed at both sides in the radial direction at 117a to improve surface sealing by surface contact with the face door 122.

Further, the floor vents 115 and 116 branch into a front seat vent 115 for discharging air toward the front occupant's foot and a rear seat vent vent 116 for discharging air toward the rear occupant's foot. It is.

In addition, the vents 113 to 116 are opened and closed by a mode door, and the opening degree thereof is controlled, that is, the mode door is a defrost door 121 that opens and closes the defrost vent 113, and the face vent ( Face door 122 for opening and closing 114, and floor door 123 for opening and closing the floor vents (115, 116).

Here, the face door 122 is a center pivot type door, and each plate is formed on both sides of a rotation shaft 122c having both ends rotatably coupled to the inside of the air conditioning case 110. And a center door part 122a for opening and closing the center vent 114a and a side door part 122b for opening and closing the side vent 114b. In this case, the center door part 122a is provided at the center of the rotation shaft 122c, and the side door part 122b is provided at both sides of the center door part 122a.

In addition, the center door part 122a and the side door part 122b are formed to be separated from each other. At this time, at least one side should be separated around the rotation shaft 122c, and both sides may be separated.

That is, the center door part 122a is alternately assembled to the sealing surface parts 117b and 117c formed at both sides of the through hole 117a of the dividing wall 117. That is, the center door part 122a is formed around the rotating shaft 122c. 122a is in surface contact with the upper surface of the one sealing surface portion 117b, and the other center door portion 122a is in surface contact with the lower surface of the other sealing surface portion 117c. Therefore, the center door part 122a may be rotated only when at least one side of the center door part 122a is separated from the side door part 122b.

As such, the face door 122 has to be assembled with the center door portion 122a alternately mounted at both sealing surface portions 117b and 117c of the dividing wall 117 when the axial case is pushed in the axial direction. At least one side door part 122b is formed to be stepped with the center door part 122a about the rotation shaft 122c so that the side door part 122b is not caught by the partition wall 117.

That is, the center door part 122a is formed at the center position of the rotation shaft 122c, and the side door part 122b is formed to be stepped with the center door part 122a. In the drawing, only one side door part 122b is formed to be separated from the center door part 122a with respect to the rotation shaft 122c, and the other side door part 122b is integrally formed with the center door part 122a. .

As such, when the side door part 122b is formed to be stepped with the center door part 122a, the side door part 122b is divided by the partition wall 122 when the face door 122 is assembled in the axial direction of the air conditioning case 110. The center door part 122a may be assembled alternately with both sealing surface parts 117b and 117c of the dividing wall 117 without being caught by the 117.

Meanwhile, the temperature control door 120 and the mode doors are cams (not shown) or levers (not shown) driven by actuators (not shown) or actuators (not shown), which are driving means installed on the outer surface of the air conditioning case 110. When connected to the rotation and the like to adjust the opening degree of the cold, hot air passage (P1) (P2) and each of the vent (113 ~ 116).

In addition, the distance L3 between the end portion of the center door portion 122a and the inner wall surface 118 of the center vent 114a and the inner wall surface 119 of the end portion and the side vent 114b of the side door portion 122b are provided. The gap adjusting means 130 is formed on at least one of the inner wall surface 118 of the center vent 114a and the inner wall surface 119 of the side vent 114b such that the interval L4 is equal to each other.

Here, the inner wall surface 118 of the center vent 114a is an inner wall surface 118 facing the center door portion 122a, and the inner wall surface 119 of the side vent 114b is formed with the side door portion 122b. It is the inner wall surface 119 facing.

The interval adjusting means 130 has an inner wall surface at least one of the inner wall surface 118 of the center vent 114a and the inner wall surface 119 of the side vent 114b, or a center door portion 122a or a side door portion. It is formed by extending in the direction (122b).

That is, since the side door portion 122b is formed to be stepped with the center door portion 122a, the inner wall surface 118 of the center vent 114a or the inner wall surface 119 of the side vent 114b is formed to extend. The distance L3 between the end portion of the center door portion 122a and the center vent inner wall surface 118 and the distance L4 between the end portion of the side door portion 122b and the side vent inner wall surface 119 are the same. (Fig. 10)

Therefore, the air volume discharged to the center vent 114a and the side vent 114b becomes uniform, thereby discharging toward the rear side (close to the evaporator) with respect to the face door 122 in the face vent 114. The unmixed cold air is uniformly discharged to the center vent 114a and the side vent 114b to reduce the left and right temperature differences.

The inner wall surface 118 of the center vent 114a and the inner wall surface 119 of the side vent 114b are different from each other.

That is, as shown in FIG. 10, the inner wall surface 119 of the side vent 114b is formed in a vertical plane, and the inner wall surface 118 of the center vent 114a is convex toward the center door portion 122a rather than the vertical surface. Is formed to protrude.

In addition, a lower portion of the inner wall surface 118 of the center vent 114a that protrudes from the vertical surface (the inner wall surface 119 of the side vent 114b) does not interfere with the rotation radius of the center door portion 122a. The groove 118a having a curved shape having a radius larger than the rotation radius of the center door portion 122a is formed.

At this time, the recess 118a is formed to be recessed inwardly (away from the center door part) than the vertical surface (inner wall surface 119 of the side vent 114b).

As described above, although the inner wall 18 of the center vent 12e and the inner wall 18 of the side vent 12f are formed in the same shape, in the present invention, the center vent 114a facing the center door 122a is provided. The inner wall surface 118 and the inner wall surface 119 of the side vent 114b facing the side door portion 122b are formed in different shapes, respectively, so that the center door portion 122a and the center vent inner wall surface 118 are formed. As the distance L3 and the distance L4 between the side door part 122b and the side vent inner wall surface 119 become the same, the amount of air discharged to the center vent 114a and the side vent 114b becomes uniform. In this case, the temperature difference can be reduced.

On the other hand, the air conditioning case 110, even if the inner wall surface 118 of the center vent (114a) and the inner wall surface 119 of the side vent (114b) are each formed in a different shape, as shown in the arrow direction of Figure 8, the center vent The 114a side can be manufactured by removing the mold mold in the horizontal direction and the side vent 114b side can be manufactured by removing the mold mold in the vertical direction.

Hereinafter, the operation of the vehicle air conditioner according to the present invention will be described.

The bi-level mode in which the face vents 113 are opened by the face door 122 and the floor vents 115 and 116 are opened by the floor door 123 in the air conditioning mode will be described with reference to FIG. 9. In addition, the temperature control door 130 will be described as a case where both the cold air flow passage (P1) and the hot air flow passage (P2) open.

First, the air blown by the blower not shown is changed to cold while passing through the evaporator 101, and then branched by the temperature control door 120 to partially flow through the cold air passage (P1) to the mixing chamber (MC). And, a part of the heat is changed through the heater core 102 of the hot air passage (P2) and then flows to the mixing chamber (MC).

After the cold and warm air that flowed into the mixing chamber MC are mixed with each other, some are discharged to the face vents 114 and some are discharged to the floor vents 115 and 116, wherein the air is discharged to the face vents 113. Some of them are discharged to the center side of the vehicle interior through the center vent 114a and some are discharged to both sides of the vehicle interior through the side vent 114b. In addition, the air discharged to the floor vents 115 and 116 is discharged toward the occupant's foot in the cabin.

In addition, the air discharged to the front side (distant to the evaporator) with respect to the face door 122 of the air discharged to the face vent 114 is discharged air that is smoothly mixed in the mixing chamber (MC), Air discharged to the rear side (close to the evaporator) is discharged from the cooling chamber MC in which the mixing is not smooth.

At this time, in the present invention, the distance L3 between the center door part 122a and the center vent inner wall surface 118 and the distance L4 between the side door part 122b and the side vent inner wall surface 119 are the same. In addition, while the amount of cold air discharged to the center vent 114a and the side vent 114b becomes uniform, the left and right temperature differences of the air discharged from the air conditioning case 110 can be reduced, thereby eliminating discomfort of the passengers. .

Meanwhile, in addition to the bi-level mode described above, a variety of air conditioning modes (bent mode, floor mode, mix mode, and defrost mode) may be performed. Since such air conditioning modes are well known, descriptions thereof will be omitted.

As described above, in the above, only the case where the present invention is applied to the semi-center type air conditioner has been described. However, the present invention is not limited thereto, and the center mounting type air conditioner, the three-piece type air conditioner, the left and right independent air conditioners, etc. All air conditioners can be applied in the same way and have the same effect.

1 is a cross-sectional view showing a bi-level mode of a conventional vehicle air conditioner,

2 is a perspective view showing a conventional vehicle air conditioner,

3 is a partial perspective view illustrating a state in which the face door is assembled to a face vent in FIG. 2;

4 is a partial perspective view illustrating a state in which the face door is disassembled from the face vent in FIG. 2;

5 is an enlarged cross-sectional view illustrating a portion in which a face door is installed in FIG. 1;

6 is a perspective view showing a vehicle air conditioner according to the present invention;

FIG. 7 is a partial perspective view illustrating a state in which the face door is disassembled from the face vent in FIG. 6;

FIG. 8 is a partial perspective view illustrating a state in which a face door is assembled to a face vent in FIG. 6;

9 is a cross-sectional view showing a bi-level mode of the vehicle air conditioner according to the present invention;

10 is an enlarged cross-sectional view illustrating a portion in which a face door is installed in FIG. 9;

FIG. 11 is an enlarged cross-sectional view illustrating a state in which a face door closes a face vent in FIG. 9.

<Explanation of symbols for the main parts of the drawings>

100: air conditioner 101: evaporator

102: heater core 110: air conditioning case

111: air inlet 112: air outlet

113: defrost vent 114: face vent

114a: center vent 114b: side vent

115,116: Floor vent 117: Partition wall

118: center vent inner wall surface 119: side vent inner wall surface

120: temperature control door 121: defrost door

122: face door 122a: center door part

122b: side door portion 122c: rotating shaft

123: floor door 130: gap adjusting means

Claims (6)

An air inlet 111 is formed at the inlet side, and the defrost vent 113, the face vent 114, and the floor vent 115, 116 are formed at the outlet side, respectively, and the face vent 114 has a center vent 114a at the center. And the air conditioning case 110 which is divided into side vents 114b on both sides thereof, Defrost door 121 is installed to open and close the defrost vent 113, Side face is installed to open and close the face vent 114, respectively formed on both sides of the rotation shaft (122c) to open and close the center door portion (122a) and the side vent (114b) for opening and closing the center vent (114a) A center pivot type face door 122 having a fisherman 122b, In the vehicle air conditioner comprising a floor door 123 for opening and closing the floor vent (115, 116), The center vent 114a such that the distance L3 between the center door part 122a and the center vent inner wall surface 118 and the distance L4 between the side door part 122b and the side vent inner wall surface 119 are equal to each other. At least one of the inner wall surface 118 of the inner wall surface 118 and the inner wall surface 119 of the side vent 114b is formed with a gap adjusting means 130, the amount of air discharged to the center vent (114a) and the side vent (114b) A vehicle air conditioner, characterized in that the uniformity. The method of claim 1, The interval adjusting means 130 has an inner wall surface at least one of the inner wall surface 118 of the center vent 114a and the inner wall surface 119 of the side vent 114b, or a center door portion 122a or a side door portion. Vehicle 122, characterized in that formed to extend in the direction. The method of claim 2, The inner wall surface 118 of the center vent 114a and the inner wall surface 119 of the side vent 114b are different from each other. The method according to claim 2 or 3, The inner wall surface 119 of the side vent 114b is formed in a vertical plane, and the inner wall surface 118 of the center vent 114a is formed to protrude toward the center door portion 122a rather than the vertical surface. Device. The method of claim 4, wherein The air conditioner for the vehicle, characterized in that the groove portion 118a is formed on the lower side of the inner wall surface 118 of the center vent 114a to protrude from the vertical surface so as not to interfere with the rotation radius of the center door portion 122a. . The method of claim 1, The center door part (122a) is formed at the center position of the rotating shaft (122c), the side door part (122b) is a vehicle air conditioning apparatus, characterized in that formed stepped with the center door (122a).

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