KR20130107711A - Air conditioner for vehicle - Google Patents

Abstract

The present invention relates to a vehicle air conditioner, and more particularly, in a door plate composed of a thin plate member sliding in an air conditioning case and a gear shaft for operating the thin plate member, the side of the air conditioning case on the thin plate member side. By providing a line contact means in line contact with the inner surface, even if the thin plate member is in close contact with the inner surface of the air conditioning case due to the wind pressure in the air conditioning case, the contact area and friction between the thin plate member and the air conditioning case is minimized. The durability of the door and the air-conditioning case and the operation force of the gear shaft for operating the thin plate member are reduced, and the cylindrical roller as the line contact means is installed on the thin plate member side, and the installation structure is simple, thereby reducing the number of parts and assembling. It relates to a vehicle air conditioner that can improve.

Description

Automotive air conditioning unit {AIR CONDITIONER FOR VEHICLE}

The present invention relates to a vehicle air conditioner, and more particularly, in a door plate composed of a thin plate member sliding in an air conditioning case and a gear shaft for operating the thin plate member, the side of the air conditioning case on the thin plate member side. It relates to a vehicle air conditioner having a line contact means in line contact with the inner surface.

The air conditioning system for a vehicle includes a cooling system for cooling the interior of the vehicle and a heating system for heating the interior of the vehicle.

In the cooling system, by the heat exchange between the refrigerant circulated to the compressor again through the condenser, the receiver dryer, the expansion valve, and the evaporator by the compressor, and the blowing air passing through the evaporator surface by the blower, And is discharged to the inside of the vehicle, thereby cooling the inside of the vehicle.

Further, the heating system is configured to heat the vehicle interior by introducing the cooling water into the heater core and exchanging heat with the blower.

Such a vehicle air conditioner can be largely divided into three types.

One example is a three piece type air conditioner in which a blower unit, an evaporator unit, and a heater unit are each composed of separate units. In the case of this air conditioner, As a result, not only the utilization of the interior space of the vehicle is lowered but also the productivity is lowered.

Accordingly, in order to increase the efficiency of the vehicle interior space, there has been a demand for miniaturization of the vehicle air conditioner. In response to this demand, recently, an air conditioner of a semi-center mounting type in which an evaporator unit and a heater unit are integrated The application of a center mounting type air conditioner having an integrated blower unit, an evaporator unit, and a heater unit is increasing.

FIG. 1 shows an example of a conventional semi-center type air conditioner for a vehicle, wherein the illustration of the blower unit is omitted.

The air conditioner 1 for the vehicle shown in FIG. 1 is an air-conditioning case provided with a defrost vent 11, a face vent 12, and a floor vent 13 whose openings are adjusted by mode doors 14 and 15 at an exit side. 10; A blower (not shown) connected to the inlet side of the air conditioning case 10 to blow inside or outside air; An evaporator (2) and a heater core (3) embedded in the air conditioning case (10); And it comprises a temperature control door 20 for adjusting the amount of mixing the cold through the evaporator (2) and the warmth through the heater core (3).

Here, the temperature control door 20 and the mode doors 14 and 15 are provided with a flat type, a dome type, a sliding type, and the like. The case where the door 20 and the mode door 14 are installed is shown.

The temperature control door 20 includes a sliding door 21 slidably installed in sliding grooves 16 formed on both inner sides of the air conditioning case 10 and having gear portions 21a formed on one side thereof, A gear portion 22a is formed to be rotatably coupled to a through hole (not shown) formed on both sides of the case 10 and to be engaged with the gear portion 21a of the sliding door 21, And a gear shaft 22 that operates.

The temperature control door 20 is to adjust the opening degree of the cold air passage (P1) and the hot air passage (P2) to adjust the amount of mixing the cold and hot air.

In addition, the mode door 14 also has a structure similar to the temperature control door 20, briefly described, the sliding door (14a) is slidably coupled to both sides of the interior of the air conditioning case 10, and It is composed of a gear shaft (14b) rotatably installed on both sides of the interior of the air conditioning case 10 to operate the sliding door (14a) is engaged with the sliding door (14a).

Meanwhile, FIG. 1 illustrates an example in which the flat mode door 15 is installed together with the sliding mode door 14.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is activated, the temperature control door 20 opens the cold air passage P1 and closes the warm air passage P2. In addition, when the maximum heating mode is activated, the temperature control door 20 closes the cold air passage P1 and opens the warm air passage P2.

Therefore, when the maximum cooling mode is activated, the air blown by the blower not shown is heat exchanged with the refrigerant flowing through the inside of the evaporator 2 while passing through the surface of the evaporator 2 to be changed into cold air, and then the cold air passage Flow through the P1 to the Mixing Chamber (MC), through the vent opened by the mode door according to the air discharge mode (vent mode, floor mode, defrost mode, bi-level mode, mix mode) By being discharged to the vehicle interior, cooling of the vehicle interior is performed.

In addition, when the maximum heating mode is activated, the blowing air is exchanged with the cooling water flowing inside the heater core 3 while passing through the heater core 3 through the hot air passage (P2) to the warm air, and then the mixing chamber ( Flows toward MC), and is discharged to the vehicle interior through a vent opened by the mode door according to the air discharge mode, thereby heating the vehicle interior.

On the other hand, when the mixing mode is activated, as shown in Figure 1, the temperature control door 20 is rotated to the neutral position, open both the cold air passage (P1) and the hot air passage (P2). Accordingly, the cold air passing through the evaporator 2 and the warm air passing through the heater core 3 flow and mix toward the mixing chamber MC, and are discharged into the vehicle interior through the vent opened by the mode door according to the air discharge mode. .

However, when the sliding mode door 14 is operated, the sliding door 14a is brought into close contact with the inner surface side of the air conditioning case 10 by the wind pressure in the air conditioning case 10 and the air conditioning case 10 side. In this case, there is a problem in that the durability of the mode door 14 and the air conditioning case 10 decreases due to friction caused by the surface contact.

In addition, due to friction between the mode door 14 and the air conditioning case 10, there is a problem that the operating force for operating the mode door 14 is increased.

An object of the present invention for solving the above-described problems is to construct a door with a thin plate member sliding inside the air conditioning case and a gear shaft for operating the thin plate member, the inner side of the air conditioning case on the side of the thin plate member By providing a line contact means to be in line contact with the side, even if the thin plate member is in close contact with the inner surface of the air conditioning case due to the wind pressure in the air conditioning case, the contact area and friction between the thin plate member and the air conditioning case is minimized And improve the durability of the air conditioning case, reduce the operating force of the gear shaft for operating the thin plate member, and the cylindrical roller, which is the line contact means, is installed on the thin plate member side, and the installation structure is simple, thereby reducing the number of parts and assembling. It is to provide a vehicle air conditioner that can be improved.

The present invention for achieving the above object, an air inlet and a plurality of air discharge port is formed, a thin plate member slidably installed inside the air conditioning case, and the inner side of the air conditioning case to operate the thin plate member In the vehicle air conditioner comprising a door consisting of a gear shaft engaged with the thin plate member while being rotatably installed, the thin plate member to reduce the contact area between the inner surface of the air conditioning case and the thin plate member; Line contact means for line contact with the inner surface of the air conditioning case is characterized in that it is provided.

The present invention is a cylindrical member which is a line contact means which is in line contact with the inner surface of the air conditioning case on the thin plate member side in forming a door with a thin plate member sliding in the air conditioning case and the gear shaft for operating the thin plate member. By providing a roller or a protrusion, even if the thin plate member is in close contact with the inner surface of the air conditioning case due to the wind pressure in the air conditioning case, the contact area and friction between the thin plate member and the air conditioning case are minimized, so that durability of the door and the air conditioning case is minimized. This improves the operating force of the gear shaft for operating the thin plate member is reduced.

Further, when the operating force of the gear shaft is reduced, the load of the actuator can be reduced and the service life can be extended when the gear shaft is driven by the actuator. When the occupant directly manipulates the gear shaft with the cable type controller, Can be improved.

In addition, the cylindrical roller is installed on the thin plate member side, as well as the installation structure is simple, it is possible to reduce the number of parts and improve the assembly.

1 is a sectional view showing a conventional automotive air conditioner,
2 is an exploded perspective view showing a vehicle air conditioner according to the present invention;
3 is a partial perspective view showing an upper portion of an air conditioning case in a vehicle air conditioner according to the present invention;
4 is a partial perspective view showing a state in which the cylindrical roller is separated from the thin plate member in the vehicle air conditioner according to the present invention;
5 is a partial cross-sectional view showing a cylindrical roller side in the vehicle air conditioner according to the present invention;
FIG. 6 is a partial cross-sectional view illustrating a case where a protrusion is formed instead of the cylindrical roller in FIG. 5;
7 is a sectional perspective view showing part A of FIG. 3;
8 is a perspective view showing a mode door in a vehicle air conditioner according to the present invention;
9 to 13 is a view showing the operating state of the mode door for each air discharge mode in the vehicle air conditioner according to the present invention.

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

As shown, the vehicle air conditioner 100 according to the present invention, the air inlet 111 is formed on one side (inlet side) and the plurality of air outlet 116 to discharge the air introduced to the other side (outlet side) Is formed and an air conditioner case 110 having an air passage 110c connecting the air inlet 111 and the air discharge port 116 therein, and is provided on the air passage 110c inside the air conditioning case 110. It comprises an evaporator 101 and the heater core 102 are provided at intervals, and the door 105 is installed on the air passage (110c) in the air conditioning case (110).

Here, the door 105 is installed on the air passage (110c) between the evaporator 101 and the heater core 102 in the air conditioning case 110, the cold air to bypass the heater core (102) A plurality of air outlets on the air conditioner 110c in the air conditioning case 110 and the temperature control door 120 for adjusting the opening degree of the hot air passage P2 passing through the passage P1 and the heater core 102. It is installed at the point where 116 is branched is composed of a mode door 130 for adjusting the opening degree of the plurality of air discharge port 116.

In addition, the air conditioning case 110 is formed by assembling the left and right cases (110a, 110b) formed by dividing the left, right, and each other, in this case, the lower case (110d) of the lower part of the left and right cases (110a, 110b) ) May be assembled.

In addition, the air inlet 111 of the air conditioning case 110 selectively introduces inside or outside air through an inside and outside air inlet (not shown) and an outside air inlet (not shown) that are opened and closed by an internal and outdoor air conversion door (not shown). And a blower 106 for blowing air is provided.

The blower 106 is a scroll case 107 connected to the air inlet 111 of the air conditioning case 110 and rotatably installed in the scroll case 107 and the air conditioning case 110. The blower 108 for blowing air to the air inlet 111 of the side, and the intake duct (not shown) formed on one side of the scroll case 107 is formed with the internal and external air inlet.

The plurality of air discharge ports 116 may include a defrost vent 112 for discharging air toward the windshield of the vehicle, a face vent 113 for discharging air toward the face of the front occupant, and Floor vents 114 and 115 for ejecting air to the feet are formed in turn.

The face vent 113 is divided into a center vent 113a and a side vent 113b. That is, the center vent 113a is provided with a center vent 113a for discharging air to the center of the vehicle interior. Side vent 113b is formed on both sides of the center vent 113a to discharge air to both sides of the vehicle interior. At this time, the center vent 113a and the side vent 113b are partitioned by a plurality of partition walls.

The floor vents 114 and 115 are branched into a front seat vent 114 for discharging air toward the front occupant's foot and a rear seat vent 115 for discharging air toward the rear occupant's foot. .

Meanwhile, a partition wall 117 is formed between the rear side warm air passage P2 of the heater core 102 and the floor vents 114 and 115 to partition each other.

In addition, the temperature control door 120 and the mode door 130 is connected to the drive means 170, such as an actuator or cable type controller installed on the outer surface of the air conditioning case 110, while operating the cold, hot air passage ( P1) (P2) and the opening degree of each of the vents 112 to 115 are adjusted.

Hereinafter, for convenience, the case where the door 105 is a mode door 130 will be described as an example, and the same may be applied to the temperature control door 120.

The mode door 130 includes a gear shaft 140 and a thin plate member 150.

The gear shaft 140 is rotatably installed on both sides of the air conditioning case 110, and a gear portion 141 is formed at both ends of the gear shaft 140. At this time, the gear shaft 140 is rotatably coupled to both opposite sides of the inside of the air conditioner case 110 at the outer end of the gear unit 141.

The gear portion 141 of the gear shaft 140 is engaged with the gear groove 155a formed in the rail portion 155 of the thin plate member 150 described later.

Here, the gear shaft 140 is preferably disposed below the face vent 113 of the plurality of air discharge port 116. That is, by arranging the gear shaft 140 on the lower side of the face vent 113, which is the center of the movement path of the thin plate member 150 slidably moving from the defrost vent 112 to the floor vents 114, 115 , The thin plate member 150 can be stably supported over the entire air discharging mode.

The thin plate member 150 is formed in a curved shape and is slidably installed inside the air conditioning case 110, and engages with the gear unit 141 of the gear shaft 140 to slide the respective vents ( 112 to 115) to adjust the opening degree.

At this time, the thin plate member 150 is in close contact with the inner surface (110e) side of the air conditioning case 110 where the plurality of air discharge port 116 is branched sliding action while the plurality of air discharge port 116 defrost vent The opening degrees of the 112, the face vents 113, and the floor vents 114 and 115 are adjusted.

A rail portion 155 is formed at both ends of the thin plate member 150 so as to be slidably engaged with both sides of the air conditioner case 110. The rail portion 155 is provided with gear portions 141 A plurality of gear grooves 155a are formed in the sliding direction of the thin plate member 150. As shown in FIG.

In addition, rail grooves 118 are formed on both side surfaces of the air conditioning case 110 facing the rails 155 of the thin plate member 150 to slidably support the ends of the rails 155.

Since the air conditioning case 110 is constructed by assembling the left and right cases 110a and 110b, the rail groove portion 118 is formed in the left and right sides, And right side cases 110a and 110b, respectively.

Due to this, the mode door 130 is supported between the rail grooves 118 formed in the left and right cases 110a and 110b. That is, the thin plate member 150 of the mode door 130 is supported between the rail groove portions 118 formed in the left and right cases 110a and 110b.

The thin plate member 150 and the rail groove 118 are formed to have the same radius, and the thin plate member 150 is installed to be in close contact with the air discharge port 116.

Therefore, when the gear shaft 140 rotates, the thin plate member 150 slides along the rail groove portion 118 to adjust the opening degree of each of the upper and lower vents 112 to 115.

In addition, the thin plate member 150 and the rail groove 118 is formed to have the same radius, that is, the same curvature, thereby preventing the thin plate member 150 from being deformed during the sliding operation of the thin plate member 150.

The thin plate member 150 is formed by injection molding with a plastic material, and it is preferable that the thin plate member 150 is formed as thin as possible as long as it does not cause problems in operation and durability.

The thin plate member 150 is formed by integrally forming the first door portion 151, the second door portion 152, and the bridge portion 153.

By using the single thin plate member 150 as described above, the overall structure of the mode door 130 is simple, thereby reducing the number of components, weight and cost, improving durability, and reducing the size of the air conditioner 100 In addition, odor can be prevented and reused (recycled) by the use of the single thin plate member 150 due to the fungal culture.

The first door part 151 may be configured to close at least two vents of the defrost vent 112, the face vent 113, and the floor vents 114 and 115. That is, the sliding direction length of the first door unit 151 is formed to a size that can close the two adjacent vents of the vents 112 to 115 at the same time, of course, the first door unit 151 is counterclockwise In the maximum sliding direction, it is also possible to close only one vent, that is, the defrost vent 112.

Meanwhile, the first door part 151 may be formed to have a size capable of closing the defrost vent 112 and the face vent 113 at the same time, or simultaneously closing the face vent 113 and the floor vents 114 and 115. desirable.

The second door part 152 is formed to be spaced apart from the first door part 151 by a predetermined interval in the sliding direction and to close at least one of the vents 112 to 115.

That is, the second door part 152 is formed to have a size in which the sliding direction length can close one of the vents 112 to 115, and the second door part 152 is the floor vent. It is desirable to form a size that can close the (114, 115).

As such, the sliding direction length of the first door part 151 which should be able to close two vents of each of the vents 112 to 115 may close one vent of each of the vents 112 to 115. It is to be formed larger than the length of the sliding direction of the second door portion 152 to be able to.

The bridge portion 153 is formed to integrally connect the first door portion 151 and the second door portion 152, which are spaced apart from each other by a predetermined distance.

The bridge portion 153 is formed at positions corresponding to the plurality of partition walls formed to partition the center vent 113a and the side vent 113b in the face vent 113.

The first door part 151 and the second door part 152 are formed on the thin plate member 150 so that the openings of the vents 112 to 115 can be adjusted according to the sliding position of the thin plate member 150. [ An opening 154 is formed through the through-hole.

The opening portion 154 is formed by a bridge portion 153 connecting the first door portion 151 and the second door portion 152. An opening 154 is divided between the plurality of bridge portions 153 Respectively.

On the other hand, the opening 154 is preferably formed to have a size that can open one vent, in this case, when the opening 154 is positioned so as to span the two vents, each of the two vents are partially opened. You may.

A sealing wall 118a is formed on an inner surface of the air conditioning case 110 at one side of the rail groove 118 so as to cover a gear groove 155a formed through the rail portion 155 of the thin plate member 150 , Thereby preventing air from leaking through the penetrated gear groove 155a of the thin plate member 150. [

At this time, the sealing wall 118a is formed in close contact with one side surface of the rail part 155 of the thin plate member 150, so that the gear groove 155a of the thin plate member 150 is closed.

In addition, the thin plate member 150 may be configured such that the rail part 155 is closely attached to the sealing wall 118a of the air conditioner case 110 by the wind pressure of the air flowing in the air conditioner case 110, .

On the other hand, the upper surface (curved surface) of the thin plate member 150 is in close contact with the inner surface (110e) of the air conditioning case 110 by the wind pressure acting in the air conditioning case 110, that is, the surface contact The upper surface (curved surface) of the thin plate member 150 and the inner surface 110e of the air conditioning case 110 facing the upper surface of the thin plate member 150 are in surface contact with each other.

At this time, the upper surface of both rail portions 155 of the thin plate member 150 is in surface contact with the sealing wall 118a of the air conditioning case 110 to secure sealing properties, but between the rail portions 155 The upper side surface of the thin plate member 150 corresponding to the section and the inner surface 110e of the air conditioning case 110 are also in surface contact with each other, causing unnecessary friction.

Therefore, the present invention, the inner surface of the air conditioning case 110 on the side of the thin plate member 150, so as to reduce the contact area between the inner surface (110e) of the air conditioning case 110 and the thin plate member 150. Line contact means 160 in line contact with 110e is provided.

The line contact means 160, the cylindrical roller 161 is rotatably installed on the thin plate member 150 side, by the wind pressure action in the air conditioning case 110, the thin plate member 150 air conditioning case 110 It is made to be in line contact when in close contact with the inner surface.

Referring to the installation structure of the cylindrical roller 161, the thin plate member 150, the receiving portion 165 for receiving the cylindrical roller 161 is formed. In addition, the cylindrical roller 161 is rotatably installed in the receiving portion 165 of the inner surface of the receiving portion 165 and both ends of the cylindrical roller 161 in the axial direction of the cylindrical roller 161. Rotating shaft 166 is formed in one, and the assembly groove 163 is formed in which the rotating shaft 166 is assembled.

At this time, as shown in the drawings, in the axial direction of the cylindrical roller 161, the rotating shaft 166 is formed on both sides of the receiving portion 165, the assembly grooves 163 are formed at both ends of the cylindrical roller 161. It is desirable to be.

On the other hand, although not shown in the drawings, the incision portion (not shown) in which a portion of the outer peripheral surface of the assembly groove 163 in the cylindrical roller 161 so that the rotation shaft 166 and the assembly groove 163 can be assembled smoothly. ) Can be formed.

In addition, a leak prevention part 167 is formed under the receiving part 165 of the thin plate member 150 to prevent the air from leaking through the receiving part 165.

The leak prevention part 167 is formed to surround a portion of the cylindrical roller 161 protruding downward of the thin plate member 150, that is, the thin member 150 is accommodated by the leak prevention part 167. Since the lower portion of the portion 165 is closed, leakage of air through the accommodation portion 165 is prevented.

At this time, it is preferable to leave a certain gap between the inner surface of the leak prevention portion 167 and the cylindrical roller 161 so that friction does not occur when the cylindrical roller 161 rotates.

In addition, the cylindrical roller 161 is installed to protrude a predetermined height than one side (upper side) of the thin plate member 150 facing the inner side surface 110e of the air conditioning case 110. That is, the thin plate member 150 and the inner surface 110e of the air conditioning case 110 are spaced apart by the height protruding from the upper surface of the thin plate member 150.

Therefore, when the wind pressure acts on the air conditioning case 110 and the thin plate member 150 is in close contact with the inner side surface 110e of the air conditioning case 110, the cylindrical roller protrudes from the upper side surface of the thin plate member 150. Since the 161 is in line contact with the inner surface 110e of the air conditioning case 110, friction between the thin plate member 150 and the inner surface 110e of the air conditioning case 110 is minimized, thereby The operating force for operating the thin plate member 150, that is, the operating force for operating the gear shaft 140 can also be minimized.

In addition, the cylindrical rollers 161 may be installed in a plurality of spaced apart from each other in the sliding direction of the thin plate member 150, wherein the number, length and thickness of the cylindrical rollers 161 may be different from each other. It may be.

In addition, a rubber member 162 is provided on an outer circumferential surface of the cylindrical roller 161 to prevent slipping with the inner surface of the air conditioning case 110.

The rubber member 162 may be manufactured separately from the cylindrical roller 161 and then fitted to the outer circumferential surface of the cylindrical roller 161, or double injection of the rubber member 162 to the outer circumferential surface of the cylindrical roller 161. It can also be formed integrally.

And, as another embodiment of the line contact means 160, the line contact means 160, one side surface (top) of the thin plate member 150 facing the inner surface (110e) of the air conditioning case 110 The protrusion 168 is formed to protrude from the side surface, and the thin plate member 150 is in line contact with the inner surface 110e of the air conditioning case 110 by the wind pressure action in the air conditioning case 110.

That is, the protrusion 168 is formed on the upper surface of the thin plate member 150 facing the inner side surface 110e of the air conditioning case 110, instead of the cylindrical roller 161, so that the inside of the air conditioning case 110 is formed. Line contact or point contact with the side (110e), the same effect as the cylindrical roller 161 can be obtained.

In this case, the protrusions 168 are protruded in a curved shape on the upper surface of the thin plate member 150 and are formed in a plurality of spaced apart from each other in the sliding direction of the thin plate member 150 like the cylindrical roller 161. do.

In addition, the protrusion 168 may be formed in a semi-circular or elliptical shape. In FIG. 6, only one example in which the protrusion 168 is formed in a semicircle shape is illustrated.

As described above, in the present invention, when the gear shaft 140 is operated to drive the thin plate member 150 in a sliding manner, both rail portions 155 of the thin plate member 150 may be caused by wind pressure in the air conditioning case 110. ) Is in surface contact with the sealing wall 118a of the air conditioning case 110 to improve the sealing property,

The section between both rail portions 155 of the thin plate member 150, the cylindrical roller 161 or the projection 168 provided on the side of the thin plate member 150 is on the inner surface (110e) of the air conditioning case 110. Line contact is to minimize the contact area between each other, thereby minimizing friction between the thin plate member 150 and the air conditioning case 110 to improve the durability of the thin plate member 150 and the air conditioning case 110 and In addition, since the operating frictional force is reduced, it is possible to reduce the operating force of the gear shaft 140.

As such, when the operating force of the gear shaft 140 is reduced, when driving the gear shaft 140 with the actuator, it is possible to reduce the load of the actuator to extend the life, the gear shaft 140 to the cable type controller When the passenger directly manipulates, the operator's feeling is improved.

In addition, since the installation structure of the cylindrical roller 161 is simple, it is possible to reduce the number of parts and improve the assembly.

The width W of the rail groove portion 118 is set so that friction between the rail groove portion 118 of the air conditioning case 110 and the rail portion 155 of the thin plate member 150 can be minimized, A plurality of frictional reductions are formed on the lower surface of the rail portion 155 of the thin plate member 150 inserted in the rail groove portion 118, A projection 159 is formed.

At this time, the friction reducing protrusions 159 are formed at a plurality of spaced intervals along the rail portion 155 of the thin plate member 150.

Accordingly, the plurality of friction reducing protrusions 159 formed on the lower side of the rail part 155 of the thin plate member 150 is in linear contact with one side of the rail groove 118 during the sliding operation of the thin plate member 150. The friction between the thin plate member 150 and the rail groove 118 is minimized, thereby further reducing the load of the actuator driving the gear shaft 140, or when operating with a cable type controller The operation feeling can be further improved.

The temperature control door 120 installed between the evaporator 101 and the heater core 102 of the door 105 is connected to the temperature control door 120 such as the mode door 130 to reduce the size of the air conditioner 100. [ The shaft 121 and the thin plate member 122 can be constituted. That is, the temperature control door 120 includes a gear shaft 121 rotatably installed on both sides of the air conditioner case 110, and a gear shaft 121 that is engaged with the gear shaft 121, And a thin plate member 122 which adjusts the opening degree of the cold air passage P1 and the warm air passage P2 while sliding the inside of the case 110 upward and downward.

In addition, the configuration of the line contact means 160 formed between the mode door 130 and the air conditioning case 110 described above may be equally applicable to the temperature control door 120.

Hereinafter, each air discharge mode of the vehicle air conditioner according to the present invention will be described, for convenience, it will be described on the basis of the cooling mode.

end. Vent mode

In the vent mode, as illustrated in FIG. 9, the first door part 151 of the thin plate member 150 closes the defrost vent 112 by the rotation operation of the gear shaft 140, and the second door part 152. Closes the floor vents 114 and 115, and the opening 154 of the thin plate member 150 is positioned in the face vent 113 to open the face vent 113.

Therefore, air blown by the air blowing device 106 is changed into cold air while passing through the evaporator 101. [

The cold air cooled through the evaporator 101 bypasses the heater core 102 by the temperature control door 120 and then passes through the face vent 113 opened by the thin plate member 150, And is discharged toward the occupant's face in the room.

I. Floor mode

In the floor mode, as shown in FIG. 10, the gear shaft 140 rotates a predetermined angle clockwise at the vent mode position, such that the first door part 151 of the thin plate member 150 has a defrost vent 112 and a face. The vent 113 is closed at the same time, and the openings 154 of the thin plate member 150 are positioned in the floor vents 114 and 115 to open the floor vents 114 and 115.

Here, the second door portion 152 is lowered to a position where the second door portion 152 overlaps the partition wall 115.

Therefore, air blown by the air blowing device 106 is changed into cold air while passing through the evaporator 101. [

The cold air cooled through the evaporator 101 bypasses the heater core 102 by the temperature control door 120 and then passes through the floor vents 114 and 115 opened by the thin plate member 150, And is discharged toward the passenger's foot of the room.

All. DeFrost mode

In the defrost mode, as shown in FIG. 11, the gear shaft 140 additionally rotates at an angle in the clockwise direction from the floor mode position, such that the first door part 151 of the thin plate member 150 is provided with a face vent 113. The floor vents 114 and 115 are closed at the same time, and the defrost vent 112 is opened because the first door part 151 is out of the defrost vent 112.

Here, the second door part 152 and the opening 154 are lowered to a position overlapping with the partition wall 117.

Therefore, air blown by the air blowing device 106 is changed into cold air while passing through the evaporator 101. [

The cold air cooled through the evaporator 101 bypasses the heater core 102 by the temperature control door 120 and then passes through the defrost vent 112 opened by the thin plate member 150 It is supplied to the windshield of the vehicle interior to remove the windshield.

la. A bi-level mode, and a mix mode

The bi-level mode is briefly described with reference to FIG. 12. The opening 154 of the thin plate member 150 is positioned to cover the face vent 113 and the floor vents 114 and 115 so that the face vent 113 and the floor vent ( 114 and 115 are open at the same time,

In the mixed mode, as shown in FIG. 13, as the center of the first door part 151 of the thin plate member 150 is located at the face vent 113 side, the face vent 113 is closed and the defrost vent 112 is closed. The floor vents 114 and 115 simultaneously open.

Meanwhile, in the process of sliding the thin plate member 150 according to the change of the air discharge mode, the thin plate member 150 is formed on the inner side surface of the air conditioning case 110 by the wind pressure in the air conditioning case 110. 110e), the cylindrical roller 161 of the thin plate member 150 is rotated while in line contact with the inner surface (110e) of the air conditioning case (110).

As described above, in the present invention, in the center mounting type air conditioner, the thin plate member 150 is provided with a line contact means 160 that is in line contact with the inner surface 110e of the air conditioning case 110. Although only the case of the present invention has been described, the present invention is not limited thereto, and can be applied to various air conditioners such as a semi-center type air conditioner, a three-piece air conditioner, and a left and right independent air conditioner in the same manner, and the same effect can be obtained.

100: air conditioner 101: evaporator
102: heater core 105: door
110: air conditioning case 110a: left case
110b: right case 110c:
110d: inner side
111: air inlet
112: Dipot Provent 113: Face Vent
114, 115: Floor vent 116: Air outlet
117: partition wall 118: rail groove
118a: sealing wall
120: temperature control door
130: Mode door 140: Gear shaft
141: gear portion 150: thin plate member
151: first door part 152: second door part
153: bridge portion 154: opening
155: rail part 155a: gear groove
159: friction reducing projection 160: line contact means
161: cylindrical roller 162: rubber member
163: assembly groove 165: receiving portion
166: axis of rotation 167: leak prevention portion
168: protrusion 170: driving means

Claims (10)

An air conditioning case 110 having an air inlet 111 and a plurality of air outlets 116,
A thin plate member 150 slidably installed inside the air conditioner case 110 and a thin plate member 150 rotatably installed inside the air conditioner case 110 to operate the thin plate member 150, And a gear shaft (140) engaged with the door (105)
In order to reduce the contact area between the inner surface (110e) and the thin plate member 150 of the air conditioning case 110, the thin plate member 150 is a line contact means in line contact with the inner surface of the air conditioning case (110) Vehicle air conditioning apparatus, characterized in that provided (160). The method of claim 1,
The line contact means 160, the cylindrical roller 161 is rotatably installed on the thin plate member 150 side, by the wind pressure action in the air conditioning case 110, the thin plate member 150 air conditioning case 110 Vehicle air conditioning apparatus characterized in that the line contact when in close contact with the inner surface (110e). 3. The method of claim 2,
The thin plate member 150, the receiving portion 165 for receiving the cylindrical roller 161 is formed,
Any one of both ends of the inner surface of the receiving portion 165 and the cylindrical roller 161 in the axial direction of the cylindrical roller 161 so that the cylindrical roller 161 is rotatably installed in the receiving portion 165. The rotating shaft 166 is formed on one and the assembly air groove 163 is formed on the other is the rotating shaft 166 is assembled. The method of claim 3, wherein
The leak prevention part 167 is formed below the accommodating part 165 of the thin plate member 150 to prevent the air from leaking through the accommodating part 165, and the leak preventing part 167 is the cylindrical roller. Vehicle air conditioning apparatus, characterized in that formed to surround (161). 3. The method of claim 2,
The cylindrical roller (161), the vehicle air conditioner, characterized in that installed to protrude a predetermined height than one side of the thin plate member 150 facing the inner surface (110e) of the air conditioning case (110). 3. The method of claim 2,
The cylindrical roller 161 is a vehicle air conditioning apparatus, characterized in that a plurality of spaced apart from each other in the sliding direction of the thin plate member 150 is installed. 3. The method of claim 2,
An outer circumferential surface of the cylindrical roller (161) is provided with a rubber member (162) to prevent slipping with the inner surface (110e) of the air conditioning case (110). The method of claim 1,
The line contact means 160 is formed by protruding the projection 168 on one side of the thin plate member 150 facing the inner surface 110e of the air conditioning case 110, the inside of the air conditioning case 110 The air conditioner for the vehicle, characterized in that the thin plate member 150 is in line contact with the inner surface (110e) of the air conditioning case 110 by the wind pressure action. The method of claim 8,
The protrusion 168 is formed in a curved shape and a plurality of vehicle air conditioning apparatus, characterized in that formed in the sliding direction spaced apart from each other in the sliding direction of the thin plate member 150. The method of claim 1,
Wherein the door (105) is a mode door (130) for sliding the thin plate member (150) according to the air discharge mode to adjust the opening degree of the plurality of air discharge openings (116).

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