KR20130066861A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE: An air conditioner for a vehicle is provided to improve the durability of a door and an air conditioner case by minimizing a contact area and friction between a thin plate member and the air conditioner case. CONSTITUTION: An air conditioner for a vehicle comprises an air conditioner case(110) and a door. The air conditioner case comprises an air inlet and a plurality of air outlets. The door comprises a thin plate member(150) and a gear shaft. The thin plate member slides inside the air conditioner case. The gear shaft is rotatably installed inside the air conditioner case to operate the thin plate member and is interlocked with the thin plate member. A line contact unit(170) line-contacts with the thin plate member in the air conditioner case side with which the thin plate member contacts in order to reduce a contact area between the thin plate and air conditioner case.

Description

Automotive air conditioning unit {AIR CONDITIONER FOR VEHICLE}

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

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 has an air-conditioning case in which 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 outlet ( 10); A blower (not shown) connected to the inlet 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 a cooling mode other than the maximum cooling mode, that is, 1/2 cooling mode is operated, as shown in Figure 1, the temperature control door 20 is rotated to a neutral position, the cooling air passage (P1) And open all of the warm air passages (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 temperature control door 20 and the mode door 14 are operated, in particular, when the sliding mode door 14 is operated, the sliding door 14a is caused by the air pressure in the air conditioning case 10. Is in close contact with the air-conditioning case 10 while being in surface contact with the air-conditioning case 10 side, at this time there is a problem that the durability of the mode door 14 and the air conditioning case 10 by the surface contact friction is reduced. .

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-mentioned conventional problems is to form a door with a sliding shaft and the gear shaft for operating the thin plate member to operate the inner side of the air conditioning case, the thin plate member in the air conditioning case side sliding contact By providing a line contact means in line contact with the thin plate member in the air conditioner, even if the thin plate member is pushed to the air conditioning case by the wind pressure in the air conditioning case, the contact area and friction between the thin plate member and the air conditioning case to minimize the durability of the door and the air conditioning case In addition to reducing the operating force of the gear shaft for operating the thin plate member and the overall structure of the cylindrical roller as the line contact means is simple, it is installed only on the assembly surface side of one case of the left and right cases constituting the air conditioning case. HVAC for vehicles that can improve the assembly of left and right cases To provide value.

The present invention for achieving the above object, the air inlet is formed on one side and the air-conditioning case formed with a plurality of air outlets to discharge the air introduced on the other side, the thin plate member is slidably installed inside the air conditioning case, In the vehicle air conditioner comprising a door consisting of a gear shaft engaged with the thin plate member while being rotatably installed inside the air conditioning case to operate the thin plate member, reducing the contact area between the thin plate member and the air conditioning case The line contact means for line contact with the thin plate member is provided on the air-conditioning case side in which the thin plate member is in sliding contact.

The present invention, in the configuration of the door by the thin plate member sliding the inner side of the air conditioning case and the gear shaft for operating the thin plate member, the line contact means for the line contact with the thin plate member on the air conditioning case side in which the thin plate member sliding contact By providing a cylindrical roller or a projection, the contact area and friction between the thin plate member and the air conditioning case are minimized even if the thin plate member is pushed toward the air conditioning case by the wind pressure in the air conditioning case, thereby improving durability of the door and the air conditioning case and The operating force of the gear shaft for operating the member is reduced.

In addition, when the operating force of the gear shaft is reduced, it is possible to extend the life by reducing the load of the actuator when the gear shaft is driven by the actuator, the operator's feeling of operation when the gear shaft is operated directly by the occupant with the cable type controller Can improve.

The cylindrical roller can be easily assembled by forming the rotary shaft and the cylindrical housing on the left and right sides of the case, and the rotary shaft and the cylindrical housing are formed on the side of the assembly on either side of the left and right cases. Assembling of the cylindrical roller can be improved as well as between the left and right cases.

In addition, the overall structure of the cylindrical roller is not only simple, but also by forming a rotary shaft for installing the cylindrical roller in the air conditioning case itself, it is possible to reduce the number of parts and improve assembly.

1 is a sectional view showing a conventional automotive air conditioner,
Figure 2 is a perspective view showing the inside of the air conditioning case in 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;
Figure 4 is a partial perspective view showing a state in which the cylindrical roller is separated from the rotating shaft in the vehicle air conditioner according to the present invention,
5 is a side view of FIG. 4;
6 is a side 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 provided, the air conditioning case 110, the evaporator 101 and the heater core 102 are installed at a predetermined interval on the air passage (110c) inside the air conditioning case 110, and the air reservoir in the air conditioning case 110 It comprises a door (105c) for adjusting the opening degree of the furnace (110c) or the air discharge port (116).

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) 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 and the air discharge port 116 in the air conditioning case 110 is installed It 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 configured by assembling the left and right cases (110a, 110b) formed by dividing the left and right.

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). A blower (not shown) for blowing air is installed.

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. In this case, the center vent 113a and the side vent 113b are partitioned from each other by a plurality of partitions 113c.

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.

The temperature control door 120 and the mode door 130 are connected to an actuator (not shown) or a cable type controller 160 installed on the outer surface of the air conditioning case 110 while operating the cold and hot air passages ( 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 is composed of 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 sliding between the defrost vent 112 and the floor vents 114 and 115. , Can stably support the thin plate member 150 over the entire air discharge 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.

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, a rail groove 118 is formed on an inner side surface of the air conditioning case 110 facing the rail part 155 of the thin plate member 150 to slidably support an end of the rail part 155.

On the other hand, since the air conditioning case 110 is configured by the assembly of the left and right cases (110a, 110b) is divided, the rail groove portion 118 is opposed to both rail portions 155 of the thin plate member 150 It is formed on the inner surface of the left and right cases (110a, 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 may slide along the rail groove 118 to adjust the opening degree of each of the 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.

As such, by using a single thin plate member 150, the overall structure of the mode door 130 is simple to reduce the number of parts, weight and cost and improve durability, as well as to reduce the size of the air conditioning apparatus (100) In addition, due to the use of a single thin plate member 150, it is possible to prevent odors and reuse (recycling) by the fungal bacteria format.

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 partitions 113c 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 to be in close contact with one side of the rail portion 155 of the thin plate member 150 to close the gear groove 155a of the thin plate member 150.

In addition, the thin plate member 150 is the air leakage of the air flowing through the interior of the air conditioning case 110, the rail portion 155 is in close contact with the sealing wall 118a of the air conditioning case 110, the leakage of air Will be prevented.

On the other hand, 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 of the thin plate member 150 An upper surface (wide surface) 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 thin plate member 150 and the air conditioning case 110 corresponding to the section are also in surface contact with each other to generate unnecessary friction.

Therefore, the present invention, the thin plate member 150 on the side of the air conditioning case 110 in sliding contact with the thin plate member 150 so as to reduce the contact area between the thin plate member 150 and the air conditioning case 110 to reduce friction. ) Is provided with a line contact means 170 in line contact.

The line contact means 170 is formed by installing a cylindrical roller 171 in line contact with the thin plate member 150 on the air conditioning case 110 side.

That is, the rotary case 172 is formed on the air conditioning case 110 to rotatably support the cylindrical roller 171, and the cylindrical roller 171 is accommodated around the rotary shaft 172 of the air conditioning case 110. The cylindrical accommodating part 173 is formed.

In addition, in the present invention, by forming the rotary shaft 172 rotatably supporting the cylindrical roller 171 in the air conditioning case 110 itself, it is possible to reduce the number of parts and improve the assembly.

In addition, since the rotating shaft 172 is formed above the inner surface 110e of the air conditioning case facing the wide surface (upper surface) of the thin plate member 150, a cylinder on one side of the cylindrical accommodation portion 173 An opening groove portion 174 is formed so that a portion of the cylindrical roller 171 accommodated in the accommodation portion 173 may contact the thin plate member 150.

Therefore, even though the cylindrical roller 171 is installed on the rotation shaft 172 formed above the inner surface 110e of the air conditioning case 110 facing the thin plate member 150, the opening groove 174 A lower portion of the cylindrical roller 171 may be in line contact with the thin plate member 150.

The cylindrical roller 171 is installed to protrude a predetermined height toward the thin plate member 150 from the inner side surface 110e of the air conditioning case 110 facing the thin plate member 150.

Thus, even if the thin plate member 150 is pushed toward the air conditioning case 110 due to the wind pressure in the air conditioning case 110, the cylindrical member 171 is not in surface contact with the air conditioning case 110. ) Is in line contact with

In addition, the rotation shaft 172 and the cylindrical housing 173 is formed only on the side of the assembly surface 110d of any one case (110b) of the left and right cases (110a, 110b) constituting the air conditioning case (110). Thus, the cylindrical roller 171 is to be installed only in the one case (110b).

That is, the cylindrical roller 171 can be easily assembled when the rotary shaft 172 and the cylindrical housing portion 173 are formed on the assembly surface 110d side of the left and right cases 110a and 110b. 172 and the cylindrical housing portion 173 should be formed on the assembly surface 110d side of any one case 110b among the left and right cases 110a and 110b, as well as the left and right cases of the cylindrical roller 171 assembly. When assembling the (110a, 110b) to each other will be easily assembled.

Meanwhile, in the drawings, only the case in which the rotating shaft 172 and the cylindrical accommodation portion 173 are formed on the assembly surface 110d of the right case 110b is assembled, but the assembly of the left case 110a is not the right case 110b. It may be formed on the surface.

In addition, the rotation shaft 172 is formed in parallel with the gear shaft 140.

In addition, the cylindrical rollers 171 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 171 may be different from each other. It may be.

In addition, a rubber member (not shown) is provided on an outer circumferential surface of the cylindrical roller 171 to prevent slipping with the thin plate member 150.

The rubber member may be manufactured separately from the cylindrical roller 171 and then fitted to the outer circumferential surface of the cylindrical roller 171, or may be integrally formed by double injection of the rubber member on the outer circumferential surface of the cylindrical roller 171. .

In addition, as another embodiment of the line contact means 170, the line contact means 170, the projection (110) on the side of the air conditioning case 110 facing the wide surface (upper surface) of the thin plate member 150 175 is formed by protruding.

That is, the protrusion 175 is formed on the inner side surface 110e of the air conditioning case 110 facing the thin plate member 150 instead of the cylindrical roller 171 so as to be in line contact or point with the thin plate member 150. In this case, the same effect as the cylindrical roller 171 can be obtained.

In this case, the protrusions 175 are formed to protrude in a curved shape on the inner surface 110e of the air conditioning case 110 and spaced apart from each other in the sliding direction of the thin plate member 150 like the cylindrical roller 171. And a plurality are formed.

In addition, the protrusion 175 may be formed in a semicircle or elliptical shape. In FIG. 6, only one example in which the protrusion 175 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,

A section between both rail portions 155 of the thin plate member 150 is in line contact with the cylindrical roller 171 or the protrusion 175 provided on the air conditioning case 110 side to minimize the contact area between each other, As a result, friction between the thin plate member 150 and the air conditioning case 110 is minimized, thereby improving durability of the thin plate member 150 and the air conditioning case 110 and reducing operating frictional force of the gear shaft 140. It is possible to reduce the operating force.

As such, when the operating force of the gear shaft 140 is reduced, when the gear shaft 140 is driven by the actuator 160, the load of the actuator 160 can be reduced to extend the life, and the gear shaft 140 ) If the passenger directly operates the cable type controller (not shown), the operation feeling of the passenger is improved.

In addition, by forming the rotary shaft 172 for installing the cylindrical roller 171 in the air conditioning case 110 itself, it is possible to reduce the number of parts and improve assembly.

In addition, the width W of the rail groove 118 is the thin plate member so as to minimize friction between the rail groove 118 of the air conditioning case 110 and the rail 155 of the thin plate member 150. It is formed larger than the thickness of 150, a plurality of friction reduction is mounted on one side of the rail groove 118 on the lower surface of the rail portion 155 of the thin plate member 150 inserted into the rail groove portion 118 The protrusion 159 is formed.

In this case, the friction reducing protrusion 159 is formed along the rail portion 155 of the thin plate member 150 by a predetermined interval spaced apart.

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 160 driving the gear shaft 140, or when operating with a cable type controller There is a further improved operation of the occupant.

Meanwhile, the temperature control door 120 installed between the evaporator 101 and the heater core 102 of the door 105 is geared like the mode door 130 to reduce the size of the air conditioner 100. The shaft 121 and the thin plate member 122 may be configured. That is, the temperature control door 120 is meshed with the gear shaft 121 rotatably installed by both side surfaces in the air conditioning case 110 and the air shaft when the gear shaft 121 rotates while being engaged with the gear shaft 121. It consists of a thin plate member 122 for adjusting the opening degree of the cold air passage (P1) and the warm air passage (P2) while sliding the inside of the case 110 up and down.

In addition, the above-described line contact means 170 formed between the mode door 130 and the air conditioning case 110 is 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, the air blown by the blower is changed into cold air while passing through the evaporator 101.

The cold air cooled while passing 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. It is discharged toward the passenger'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 part 152 is lowered to a position overlapping with the partition wall 115.

Therefore, the air blown by the blower is changed into cold air while passing through the evaporator 101.

Cold air cooled while passing 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. It is discharged to the passenger's foot in 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, the air blown by the blower 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.

On the other hand, in the process of sliding the thin plate member 150 in accordance with the change of the air discharge mode, it is in close contact with the lower portion of the cylindrical roller 171 by the wind pressure in the air conditioning case 110, wherein the cylindrical roller 171 is rotated while in line contact with the thin plate member 150.

As described above, in the present invention, only a case in which the line contact means 170 is formed on the air conditioning case 110 in which the thin plate member 150 of the door is in sliding contact is applied to the semi-center type air conditioner. Although described, the present invention is not limited thereto, and can be applied to various air conditioners such as a center mounting type air conditioner, a three-piece type air conditioner, a left and right independent air conditioner, 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: assembly surface 110e: inner surface
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 protrusion 160: actuator
170: line contact means 171: cylindrical roller
172: rotating shaft 173: cylindrical housing
174: opening groove 175: protrusion

Claims (10)

An air inlet 111 is formed at one side and an air conditioning case 110 having a plurality of air outlets 116 formed at the other side to discharge the introduced air;
The thin plate member 150 slidably installed inside the air conditioning case 110 and the thin plate member 150 while being rotatably installed inside the air conditioning case 110 to operate the thin plate member 150. In the vehicle air conditioner comprising a door 105 composed of a gear shaft 140 in engagement with,
In order to reduce the contact area between the thin plate member 150 and the air conditioning case 110, the line contact means in line contact with the thin plate member 150 on the side of the air conditioning case 110 is sliding contact with the thin plate member ( 170) is provided with a vehicle air conditioning apparatus. The method of claim 1,
The line contact means 170, the vehicle air conditioner, characterized in that by installing a cylindrical roller 171 in line contact with the thin plate member 150 on the side of the air conditioning case (110). 3. The method of claim 2,
A rotating shaft 172 for rotatably supporting the cylindrical roller 171 is formed at the side of the air conditioning case 110, and a cylinder housing the cylindrical roller 171 around the rotating shaft 172 of the air conditioning case 110. An accommodating part 173 is formed, and an opening groove part is formed at one side of the cylindrical accommodating part 173 so that a portion of the cylindrical roller 171 accommodated in the cylindrical accommodating part 173 is in contact with the thin plate member 150. 174 is a vehicle air conditioner characterized in that formed. 3. The method of claim 2,
The cylindrical roller (171), the vehicle air conditioner, characterized in that installed to protrude a predetermined height toward the thin plate member 150 side than the inner surface (110e) of the air conditioning case 110 facing the thin plate member (150). The method of claim 3, wherein
The air conditioning case 110, the left and right cases (110a, 110b) formed by dividing the left and right are composed of assembled with each other,
The rotary shaft 172 and the cylindrical housing portion 173 are formed only on the side of the assembly surface 110d of any one case 110b of the left and right case 110a, 110b, the cylindrical roller 171 is the Vehicle air conditioner, characterized in that only one side (110b) is installed. 3. The method of claim 2,
The cylindrical roller 171 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 installed. 3. The method of claim 2,
The outer circumferential surface of the cylindrical roller 171 is a vehicle air conditioner, characterized in that the rubber member is provided to prevent slipping with the thin plate member (150). The method of claim 1,
The line contact means 170, the vehicle air conditioner, characterized in that formed by forming a protrusion 175 on the air conditioning case (110) side. The method of claim 8,
The protrusion part 175 is formed in a curved shape and the vehicle air conditioner, characterized in that a plurality of spaced apart from each other in the sliding direction of the thin plate member 150 is formed. 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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