KR102170457B1 - Air conditioner for vehicle - Google Patents

Abstract

The present invention relates to an air conditioner for a vehicle, and more particularly, in constructing a shower duct that discharges air toward the feet of a driver's seat and a passenger seat, a first duct portion that is coupled to a floor vent of an air conditioning case and extends downward; , By being detachably coupled to the first duct and extending in the width direction of the vehicle to discharge air toward the passenger's feet, interference is prevented when descending for A/S of the electronic power steering. Since the second duct part can be easily separated in a downward direction, A/S of the electronic power steering can be simplified, and the screw of the second duct part can be easily loosened by placing a tool under the second duct part. It relates to an air conditioner for a vehicle that can easily disassemble and assemble a second duct part.

Description

Vehicle air conditioning system {AIR CONDITIONER FOR VEHICLE}

The present invention relates to an air conditioner for a vehicle, and more particularly, in constructing a shower duct that discharges air toward the feet of a driver's seat and a passenger seat, a first duct portion that is coupled to a floor vent of an air conditioning case and extends downward; , A vehicle air conditioner configured with a second duct part detachably coupled to the first duct part and extending in the vehicle width direction to discharge air toward the occupant's foot to facilitate A/S of electronic power steering. It is about.

In general, vehicle air conditioners are interior parts of automobiles that are installed for the purpose of securing the driver's front and rear view by cooling or heating the interior of the vehicle in summer or winter, or removing frost that may be stuck on the windshield in rain or winter. In general, such an air conditioner is equipped with a heating device and a cooling device at the same time, so that after selectively introducing outside air or inside air, the air is heated or cooled and blown into the interior of the vehicle 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 a heater core unit in the air conditioning case. It can be roughly classified into a semi-center type in which a built-in blower unit is provided as a separate unit, and a center mounting type in which all three units are built in an air conditioning case.

1 is a cross-sectional view showing the semi-center type vehicle air conditioner, and FIG. 2 is a perspective view showing a conventional vehicle air conditioner, wherein the air conditioner 1 has an air inlet 11 formed on one side and a mode on the other side. A defrost vent 12a, a face vent 12b, and floor vents 12c, 12d, each of which the opening degree is adjusted by the doors 16a, 16b, 16c, is installed; A blowing device (not shown) connected to the air inlet 11 of the air conditioning case 10 to blow inside or outside air; An evaporator (2) and a heater core (3) built into the air conditioning case (10); In addition to being installed between the evaporator 2 and the heater core 3, the opening of the cold air passage P1 bypassing the heater core 3 and the hot air passage P2 passing through the heater core 3 It comprises a temperature control door (15) to control.

Further, the floor vents 12c and 12d are divided into a floor vent 12c for a front seat and a floor vent 12d for a rear seat.

And, since the temperature difference between the front seats and the rear seats is severe, in order to solve this problem, the rear side of the floor vents 12c and 12d induces air to be discharged to the console box (not shown), which is the central part of the vehicle interior, so that air-conditioning air is supplied to the rear seat space. The supplying console vent 12e is installed.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is activated, the temperature control door 15 opens the cooling air passage P1 and closes the hot air passage P2. do. Accordingly, the air blown by the blower (not shown) passes through the evaporator 2 and exchanges heat with the refrigerant flowing inside the evaporator 2 to be converted into cold air, and then through the cooling air passage P1, the mixing chamber ( The vent flows toward the mixing chamber, MC), and is then opened by the mode doors (16a, 16b, 16c) according to the predetermined air discharge mode (vent mode, bi-level mode, floor mode, mix mode, defrost mode). By being discharged to the interior of the vehicle through the air, cooling of the interior of the vehicle is performed.

When the maximum heating mode is activated, the temperature control door 15 closes the cold air passage P1 and opens the hot air passage P2. Accordingly, the air blown by the blower (not shown) passes through the evaporator 2 and then heats exchange with the cooling water flowing inside the heater core 3 while passing through the heater core 3 through the hot air passage P2. The heating system is discharged to the interior of the vehicle through a vent that is opened by the mode doors 16a, 16b, 16c according to a predetermined air discharge mode, and then flows toward the mixing chamber MC. Performed.

When the mixing mode is activated, the temperature control door 15 rotates to a neutral position to open both the cold air passage P1 and the hot air passage P2 with respect to the mixing chamber MC. Therefore, the cold passing through the evaporator 2 and the warming passing through the heater core 3 flow toward the mixing chamber MC and are mixed, and then opened by the mode doors 16a, 16b, 16c according to a predetermined air discharge mode. By being discharged into the vehicle interior through the vent, the vehicle interior is adjusted to an appropriate temperature.

In addition, the floor vents (floor vents for the front seats) 12c are formed on both sides of the air conditioning case 10, respectively, and the floor vents 12c include shower ducts to discharge air to the feet of the driver's seat and passengers seat ( 20) are installed respectively.

One end of the shower duct 20 is coupled to the floor vent 12c, and the other end extends for a certain length toward the driver's seat and the passenger seat, and a discharge port 20a is formed on the lower side thereof.

Accordingly, the air that has passed through the floor vent 12c is discharged to the feet of the driver's seat and passenger seat through the shower duct 20.

The shower duct 20 is manufactured by blow molding and injection methods, and the blow molding is completed by separately grinding the lower discharge port and the opening part after the entire shape is made of PE material. In the case of such blow molding, although the shape of the shower duct 20 is free, there is a problem that the manufacturing cost is increased.

In the injection method, a PP material is injected, and the shower duct 20 is manufactured by dividing the left and right sides into two, and then assembled. In the case of such an injection method, it is difficult to control wind direction and air volume due to low design freedom, while manufacturing cost is relatively inexpensive.

The shower duct 20 has a difference in manufacturing method, but the structure that is bent in a "b" shape from the side of the floor vent 12c toward the passenger's foot is integrally configured, so that the air conditioning case 10 side is screwed. Combined and fixed.

Recently, an electric power steering (EPS) 30 is installed near the shower duct 20, and in this case, the electronic power steering 30 is a shower duct that is bent in the "b" shape. It is installed adjacent to the upper side of (20).

However, in order to A/S the electronic power steering 30, the electronic power steering 30 must be lowered. At this time, as shown in FIG. 3, while being caught on the bent part in the "b" shape of the shower duct 20 There was a problem that A/S was impossible due to interference.

An object of the present invention for solving the above-described conventional problem is to construct a shower duct for discharging air toward the feet of a driver's seat and passenger seat, a first duct portion coupled to a floor vent of an air conditioning case and extending downward, By being detachably coupled to the first duct part and forming a second duct part extending in the width direction of the vehicle to discharge air toward the passenger's foot, it interferes when descending for A/S of the electronic power steering. Since the second duct part can be easily separated in a downward direction, A/S of the electronic power steering can be easily performed, and the screw of the second duct part can be easily loosened by placing a tool under the second duct part. It is to provide a vehicle air conditioning system that can easily disassemble and assemble the 2 duct part.

The present invention for achieving the above object is an air-conditioning case in which an air inlet is formed on one side, and a defrost vent, a face vent, and a floor vent are formed to discharge air into the vehicle interior on the other side, and the driver's seat is coupled to the floor vent. And a shower duct for discharging air toward each passenger's foot of the passenger seat, wherein the shower duct is coupled to the floor vent and extends a predetermined length downward from the floor vent, and the floor A first duct portion that guides the air discharged from the vent in a downward direction, and is detachably coupled to the first duct portion, and is formed to extend a certain length in the vehicle width direction, so that the air passing through the first duct portion It is characterized in that it consists of a second duct portion that is guided toward the foot and discharged.

In the present invention, in configuring a shower duct for discharging air toward the feet of a driver's seat and a passenger seat, a first duct portion that is coupled to a floor vent of an air conditioning case and extends downward, and a detachably coupled to the first duct portion In addition, the second duct part, which is formed extending in the width direction of the vehicle and discharges air toward the passenger's foot, is easily separated in the downward direction, which interferes when descending for A/S of electronic power steering. It is possible to do A/S of the electronic power steering easily.

In addition, by placing a tool under the second duct part, the screw of the second duct part can be easily loosened, so that the disassembly and assembly of the second duct part can be easily performed.

1 is a cross-sectional view showing a conventional vehicle air conditioner;
2 is a perspective view showing a conventional vehicle air conditioner;
3 is a cross-sectional view showing the shower duct in FIG. 2;
4 is a perspective view showing an air conditioning apparatus for a vehicle according to the present invention,
5 is a perspective view showing a shower duct in the vehicle air conditioner according to the present invention,
6 is a perspective view of the shower duct of FIG. 5 viewed from the bottom;
7 is a perspective view showing the shower duct of FIG. 5 in an exploded state;
8 is a cross-sectional view showing a state in which a second duct portion is disassembled in a downward direction in the shower duct of FIG. 5;
9 is a cross-sectional view showing an air conditioner for a vehicle according to the present invention.

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

As shown, in the vehicle air conditioning apparatus 100 according to the present invention, an air inlet 111 is formed on one side (inlet side) and a defrost vent 112 is formed on the other side (outlet side) to discharge air into the vehicle interior. , The face vent 113, the floor vents 114, 115 are formed, and an air conditioning case 110 having a cold air passage P1 and a hot air passage P2 formed on the air passage inside, and an air cylinder inside the air conditioning case 110 The evaporator 101 and the heater core 102 installed at a certain distance apart from each other on the furnace, and the cold wind installed between the evaporator 101 and the heater core 102 and bypassing the heater core 102 It is configured to include a passage (P1) and a temperature control door 130 for controlling the opening of the hot air passage (P2) passing through the heater core (102).

In addition, a blower 120 for blowing inside or outside air is installed at the air inlet 111 of the air conditioning case 110.

The blower 120 has a blower fan (not shown) installed therein, so that internal air or outside air is forcibly sucked and blown to the air inlet 111 of the air conditioning case 110.

In addition, the defrost vent 112 is for discharging air toward the windshield of the vehicle, the face vent 113 is for discharging air toward the face of a front seat occupant, and the floor vents 114 and 115 are It is to discharge air to the passenger's feet.

The floor vents 114 and 115 are divided into a front seat floor vent 114 for discharging air toward the feet of a front seat occupant and a rear seat floor vent 115 for discharging air toward the rear seat occupants' feet. .

Here, the floor vents 114 and 115 are formed on both sides of the air conditioning case 110 facing the driver's seat and the passenger seat, respectively.

In addition, the defrost vent 112, the face vent 113, and the floor vents 114 and 115 are opened and closed by the mode door, respectively, and their opening degree is adjusted, that is, the mode door is the defrost vent 112 It consists of a defrost door 117 for opening and closing, a face door 118 for opening and closing the face vent 113, and a floor door 119 for opening and closing the floor vents 114 and 115.

Here, the temperature control door 130 and the mode door include a rotation shaft rotatably coupled to an inner wall surface of the air conditioning case 110 and a plate formed on a side of the rotation shaft.

In addition, a guide wall 110a is formed between the rear hot air passage P2 of the heater core 102 and the floor vents 114 and 115 to be partitioned from each other.

Meanwhile, the temperature control door 130 and the mode door are connected to a cam (not shown) or an arm (not shown) driven by an actuator (not shown) installed on the outer surface of the air conditioning case 110 to rotate and operate the The opening degrees of the cooling and hot air passages P1 and P2 and the vents 112 to 115 are adjusted.

Of course, the temperature control door 130 and the mode door may be driven by being directly connected to the actuator without a cam or arm.

Meanwhile, a console vent 116 may be further formed in the air conditioning case 110.

The console vent 116 is provided at the rear side of the floor vents 114 and 115 of the air conditioning case 110 and communicates with the interior of the air conditioning case 110, for example, and communicates with the face vent 113.

The console vent 116 supplies air conditioning air to a specific area (rear console (rear seat) or B-pillar, etc.) of the vehicle interior.

In addition, shower ducts 140 are connected to the floor vents 114 for front seats formed on both sides of the air conditioning case 110 so as to discharge air toward the feet of each occupant in the driver's seat and the passenger seat.

On the other hand, the size of the space between the driver's seat and the passenger's seat is different, and an accelerator pedal or brake pedal is installed on the driver's seat side, so the shape of the shower duct 140 installed on the driver's seat side and the shower duct 140 installed on the passenger seat side May be formed differently from each other.

The shower duct 140 is configured by assembling the first duct part 141 and the second duct part 145,

The first duct part 141 is coupled to a floor vent 114 formed on a side surface of the air conditioning case 110 and extends a predetermined length downward from the floor vent 114, so that the floor vent 114 The air discharged from) is guided downward.

That is, the floor vent 114 is formed to protrude from a side surface of the air conditioning case 110, and at this time, an inlet part 142 that is fitted to the floor vent 114 on a side surface of the upper end of the first duct part 141 ) Is formed.

In addition, the lower end of the first duct part 141 is formed to be open.

On the other hand, the first duct part 141 may be integrally formed, or when it is difficult to integrally form in a mold, it may be manufactured by dividing it into two and then assembled with each other to complete. In this case, when the first duct part 141 is manufactured by dividing into two, it is divided into two in the vehicle width direction.

In addition, the second duct part 145 is detachably coupled to the first duct part 141 and is formed to extend a certain length in the vehicle width direction, so that the air that has passed through the first duct part 141 It is guided toward the passenger's feet and discharged.

That is, the second duct part 145 is formed to extend a predetermined length from the lower end of the first duct part 141 toward each occupant of the driver's seat and the passenger seat.

The overall shape of the shower duct 140 formed by assembling the first duct part 141 and the second duct part 145 has a "b" shape.

On the other hand, the second duct part 145 may also be integrally formed, or when it is difficult to integrally form in a mold, it may be manufactured by dividing it into two and then assembled with each other to complete. At this time, when the second duct part 145 is manufactured by dividing into two, it is divided into two in the front and rear directions of the vehicle.

In addition, the second duct part 145 is detachably coupled to the lower end of the first duct part 141 in an up and down direction.

In addition, a first screw coupling portion (144a) is formed on a lower end side of the first duct portion 141, and a first screw coupling portion (144a) is formed on the upper end side of the second duct portion 145. A second screw coupling portion 148 is formed at the position, and the first and second screw coupling portions are coupled with a screw 149.

At this time, the screw 149 is coupled in an upward direction from the lower side of the second screw coupling portion 148.

Meanwhile, the first screw coupling portion 144a may protrude a predetermined length in a downward direction and may be inserted into the second screw coupling portion 148.

In addition, an electric power steering (EPS) 30 is mounted adjacent to the upper side of the second duct part 145 of the shower duct 140.

In order to A/S the electronic power steering 30, since the electronic power steering 30 must be lowered, the second duct part 145 of the shower duct 140 is first disassembled, and then the electronic power steering ( 30) is lowered to do A/S.

That is, when a tool is positioned under the second duct part 145 to loosen the screw 149 of the second duct part 145, the second duct part 145 is removed from the first duct part 141 ) Can be easily separated in the downward direction, and due to this, the electronic power steering 30 can be lowered without interference with the shower duct 140, so that A/S can be conveniently performed.

In addition, since the screw 149 can be loosened downward by placing a tool under the second duct part 145, disassembly and assembly of the second duct part 145 can be easily performed.

Meanwhile, a coupling rib 144b is formed in the first duct part 141 to fix the shard water 140 to the side of the air conditioning case 110.

That is, the first duct part 141 is screwed and fixed to the air conditioning case 110 side through the coupling ribs 144b, and the second duct part 145 is the first duct part 141 It is coupled to the lower end of the screw 149 to enable disassembly in the lower direction (vertical direction).

On the other hand, in addition to the method of coupling the first duct part 141 and the second duct part 145 to the screw 149, it is of course possible to combine the first duct part 141 and the second duct part 145 by a hook structure (not shown).

In addition, horizontal coupling surfaces 143 and 147 are formed on the coupling portions of the first duct portion 141 and the second duct portion 145 to be coupled to each other.

The horizontal coupling surfaces 143 and 147 are surfaces formed parallel to the line when a line is drawn in the vehicle width direction.

In addition, a groove portion 143a is formed in any one of the horizontal coupling surface 143 of the horizontal coupling surface 143 of the first duct portion 141 and the horizontal coupling surface 147 of the second duct portion 145 In addition, a protrusion 147a inserted into the groove 143a is formed on the other horizontal coupling surface 147.

In the drawing, a groove 143a is formed on the horizontal coupling surface 143 of the first duct portion 141, and a protrusion 147a is formed on the horizontal coupling surface 147 of the second duct portion 145.

Therefore, when the first duct part 141 and the second duct part 145 are combined, the first and second duct parts 141 and 145 are combined because the protrusion 147a is inserted into the groove 143a and adheres to each other. It can prevent air from leaking to the area.

Further, a plurality of discharge ports 146 through which the air inside the second duct part 145 is discharged toward the passenger's feet are formed through the lower side of the second duct part 145.

That is, the plurality of discharge ports 143 are formed on the lower side of the second duct part 145 to be spaced apart from each other by a predetermined distance.

At this time, the plurality of discharge ports 143 adjust the amount and direction of air discharged toward the passenger's feet in different sizes, positions, and intervals, so that the occupant can feel comfortable.

As an example, when the temperature near the floor vent 114 is high and the temperature is lower as the temperature increases away from the floor vent 114, the air volume is adjusted by adjusting the size of the plurality of discharge ports The temperature deviation is minimized.

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

Among the air discharge modes (vent mode, bi-level mode, floor mode, mix mode, defrost mode), only the floor mode will be described with reference to FIG. 9. In addition, it will be described as a case in which the temperature control door 130 opens the hot air passage P2.

In the floor mode, only the floor vents 114 and 115 are opened, and the defrost vent 112 and the face vent 113 are closed.

Accordingly, the air blown by the blower 120 passes through the heater core 102 by the temperature control door 120 after passing through the evaporator 101 and is converted into warm air and flows into the mixing chamber MC.

The warm air flowing into the mixing chamber MC flows to the floor vents 114 and 115 formed on both sides of the air conditioning case 110, and at this time, some of the warm air flowing to the floor vents 114 and 115 flows to the rear seats. And, some of them flow to the shower duct 140 on the driver's seat side and the shower duct 140 on the passenger side, respectively.

Thereafter, the warm air flowing along the inside of the shower duct 140 is discharged to the feet of the driver's seat and passenger side through the plurality of discharge ports 143 formed on the lower side of the second duct part 145 of the shower duct 140. .

Meanwhile, in addition to the floor mode described above, more various air discharge modes (defrost mode, vent mode, bi-level mode, and mix mode) can be performed, and since such air discharge modes are known, a description thereof will be omitted.

And, in the case of A/S for the electronic power steering 30, the second duct part 145 of the shower duct 140 is first disassembled,

That is, when a tool is positioned under the second duct part 145 to loosen the screw 149 of the second duct part 145, the second duct part 145 is removed from the first duct part 141 ), it can be easily separated in the downward direction.

When the second duct part 145 is separated, since the interference part has been removed from the space under the electronic power steering 30, the electronic power steering 30 is lowered and A/S is performed. do.

As described above, in the above, the shower duct 140 consisting of the first duct part 141 and the second duct part 145 detachably coupled to the first duct part 141 is semi-center type air conditioning. Although only the case applied to the device has been described, it is not limited thereto, and the same method can be applied to all air conditioners such as center mounting type air conditioner, three-piece type air conditioner, left and right independent control air conditioner, and obtain the same effect I can.

100: air conditioner 101: evaporator
102: heater core 110: air conditioning case
110a: guide wall
111: air inlet 112: defrost vent
113: face vent 114,115: floor vent
116: console vent 117: defrost door
118: face door 119: floor door
120: blower 130: temperature control door
140: shower duct 141: first duct part
142: inlet 143: horizontal coupling surface
144a: first screw coupling part
145: second duct part 146: discharge port
147: horizontal coupling surface 148: second screw coupling portion
149: screw

Claims (7)

An air inlet 111 is formed on one side, and a defrost vent 112, face vent 113, and floor vents 114 and 115 are formed on the other side to discharge air into the vehicle interior, and the floor vent In the vehicle air conditioner comprising a shower duct 140 coupled to (114) to discharge air toward each occupant's feet in the driver's seat and the passenger seat,
The shower duct 140,
A first duct part 141 coupled to the floor vent 114 and extending a predetermined length downward from the floor vent 114 to guide the air discharged from the floor vent 114 downward Wow,
A second duct part that is detachably coupled to the first duct part 141 and extends a certain length in the vehicle width direction, and guides and discharges the air that has passed through the first duct part 141 toward the passenger's foot. Consists of (145),
The second duct part 145 is detachably coupled to the lower end of the first duct part 141 in an up and down direction,
The floor vent 114 is formed on the side of the air conditioning case 110 in the vehicle width direction, so that the first duct portion 141 of the shower duct 140 is fastened to the floor vent 114 in the vehicle width direction,
The second duct part 142 is disposed adjacent to the lower part of the electronic power steering 30, and the second duct part 145 is first disassembled downward from the first duct part 141, and then the An air conditioning apparatus for a vehicle, characterized in that the electronic power steering (30) is lowered and separated. delete The method of claim 1,
A vehicle air conditioner, characterized in that horizontal coupling surfaces (143 and 147) are formed at the coupling portions of the first duct portion 141 and the second duct portion 145 to be coupled to each other. The method of claim 3,
A groove portion 143a is formed in any one of the horizontal coupling surface 143 of the first duct portion 141 and the horizontal coupling surface 147 of the second duct portion 145, An air conditioner for a vehicle, characterized in that a protrusion 147a inserted into the groove 143a is formed on the other horizontal coupling surface 147 to prevent air leakage. The method of claim 1,
A first screw coupling portion 144a is formed on the side of the first duct portion 141, and a second screw coupling portion 144a is formed on the side of the second duct portion 145 at a position corresponding to the first screw coupling portion 144a. A screw coupling portion 148 is formed to couple the first and second screw coupling portions 144a and 148 with a screw 149,
The screw (149) is an air conditioner for a vehicle, characterized in that coupled in the upward direction from the lower side of the second screw coupling portion (148). The method of claim 1,
An air conditioning apparatus for a vehicle, characterized in that a coupling rib (144b) is formed in the first duct part (141) to fix the shower duct (140) to the air conditioning case (110) side. The method of claim 1,
A vehicle air conditioner, characterized in that a plurality of discharge ports (146) for discharging the air inside the second duct part (145) toward the passenger's feet are formed on the lower side of the second duct part (145).

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