KR102047747B1

KR102047747B1 - Air conditioner for vehicle

Info

Publication number: KR102047747B1
Application number: KR1020140072552A
Authority: KR
Inventors: 이남준; 박대근; 백승호; 호 이
Original assignee: 한온시스템 주식회사
Priority date: 2014-06-16
Filing date: 2014-06-16
Publication date: 2019-11-25
Also published as: KR20150144355A

Abstract

The present invention relates to a vehicle air conditioner, and more particularly, in the shower duct manufactured by the injection method, the side discharge part is formed on the side of the shower duct so as to diversify the discharge direction of the wind in various directions. Due to the diversification of the discharge direction through the part, the heating performance can be improved and the comfort of the passenger can be improved by the uniform temperature distribution all over the passenger's foot. It relates to a vehicle air conditioner having a high degree of freedom.

Description

Automotive air conditioning unit {AIR CONDITIONER FOR VEHICLE}

The present invention relates to a vehicle air conditioner, and more particularly, to a vehicle air conditioner having a side discharge part formed so as to diversify the discharge direction of wind in various directions in a shower duct manufactured by an injection method. It is about.

In general, the vehicle air conditioner is a vehicle interior that is installed for the purpose of securing the driver's front and rear view by removing the frost from the windshield or heating in the summer or winter, or during the rain or winter season. In addition, such an air conditioner is generally equipped with a heating device and a cooling device at the same time to selectively introduce the outside air or bet, the air is heated or cooled and blown into the vehicle interior to cool, heat or ventilate the interior of the vehicle.

According to the independent structure of the blower unit, the evaporator unit, and the heater core unit, the air conditioner includes a three piece type in which the three units are independently provided, and an evaporator unit and the heater core unit in the air conditioning case. A semi-center type in which the 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 may be classified.

1 is a cross-sectional view showing the semi-center type vehicle air conditioner, Figure 2 is a perspective view showing a conventional vehicle air conditioner, the air conditioner 1, the air inlet 11 is formed on one side and each mode on the other side An air conditioning case (10) provided with a defrost vent (12a), a face vent (12b), and floor vents (12c, 12d) whose openings are adjusted by doors (16a, 16b, 16c); A blower (not shown) connected to the air inlet 11 of the air conditioning case 10 to blow the inside or outside air; An evaporator (2) and a heater core (3) embedded in the air conditioning case (10); The opening degree of the cold air passage P1 installed between the evaporator 2 and the heater core 3 and bypassing the heater core 3 and the hot air passage P2 passing through the heater core 3 is determined. It comprises a temperature control door 15 to adjust.

The floor vents 12c and 12d are branched into a front seat vent 12c and a rear seat vent 12d.

And, in order to solve the temperature difference between the front seat and the back seat is severe, the rear side of the floor vent (12c, 12d) induces the air discharge to the console box (not shown), which is the center of the vehicle interior air conditioning air into 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 operated, the temperature control door 15 opens the cold air passage P1 and closes the hot air passage P2. do. Accordingly, the air blown by the blower not shown is heat-exchanged with the refrigerant flowing through the evaporator 2 while passing through the evaporator 2 to be changed to cold, and then the mixing chamber (P1) through the cooling air passage (P1). To the mixing chamber (MC), and then vented by the mode doors 16a, 16b, and 16c according to a predetermined air discharge mode (vent mode, bi-level mode, floor mode, mix mode, defrost mode). By being discharged to the vehicle interior through, the cooling of the vehicle interior 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 is heat exchange with the coolant flowing through the inside of the heater core 3 while passing through the heater core 3 through the hot air passage (P2) after passing through the evaporator (2) After being turned into a warmer, the liquid flows toward the mixing chamber MC, and is then discharged to the interior of the vehicle through a vent opened by the mode doors 16a, 16b, and 16c according to a predetermined air discharge mode. Is 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, after the cool air passing through the evaporator 2 and the warm air passing through the heater core 3 flow and mix toward the mixing chamber MC, they are opened by the mode doors 16a, 16b, and 16c according to a predetermined air discharge mode. The vent is discharged into the vehicle interior to adjust the vehicle interior to an appropriate temperature.

The floor vent (front vent) 12c is formed at both sides of the air conditioning case 10, and the floor vent 12c has a shower duct to discharge air toward the driver's seat and the passenger seat occupant's foot. 20) are installed respectively.

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

Therefore, the air passing through the floor vent 12c is discharged to the driver's seat and the passenger seat occupant's foot through the shower duct 20.

The shower duct 20 is manufactured by a blow molding and an injection molding method. The blow molding is completed by drawing the lower discharge port and the opening part separately after manufacturing the entire shape of the PE material. In the case of blow molding, the shape of the shower duct 20 is free, but there is a problem in that the manufacturing cost increases.

The latter injection method is injected into a PP material, and the shower duct 20 is divided into two parts and then assembled. In the case of such an injection method, it is difficult to control the wind direction and the air volume due to low design freedom, but the manufacturing cost is relatively inexpensive.

FIG. 3 is a drawing comparing the driver's seat temperature distribution for each product when the conventional shower duct is manufactured by the blow molding method and the injection molding method. As shown, the temperature distribution is uniform in the blow molded product. In the case of injection molding products, the wind discharged through the shower duct 20 is displaced to one side, and thus there is a problem in that a discomfort such as hotness and swelling of a specific foot occurs due to uneven temperature distribution over the entire occupant's foot. .

An object of the present invention for solving the above problems is to form a side discharge portion in the shower duct manufactured by the injection method so as to diversify the discharge direction of the wind in various directions on the side of the shower duct, Due to the diversification of the discharge direction, the heating performance can be improved and the comfort of the passenger can be improved by the uniform temperature distribution all over the passenger's foot. To provide a high vehicle air conditioner.

The present invention for achieving the above object, the air inlet is formed on one side, the air-conditioning case formed with a defrost vent, a face vent, a floor vent to discharge the air into the cabin, and is connected to the floor vent A predetermined length is extended to the driver's seat and the passenger's seat, respectively, and the lower side has a shower duct having a lower discharge port to discharge air passing through the floor vent to each passenger's foot of the driver's seat and the passenger seat, wherein the shower duct is provided. Side of the side, characterized in that the side discharge portion is formed so as to diversify the discharge direction of the wind discharged through the shower duct in several directions.

According to the present invention, a side discharge part is formed on the side surface of the shower duct in the shower duct manufactured by the injection method so as to diversify the discharge direction of wind in various directions, thereby diverting the discharge direction through the side discharge part. Improved heating performance with even temperature distribution throughout, thereby eliminating complaints of the passenger's specific foot hotness and itching, thereby improving the passenger's comfort.

In addition, the manufacturing cost is reduced because the finishing work is not required compared to the blow molding product.

In addition, through the control panel of the side discharge portion is free to control the direction of the wind and the amount of air flow, there is a high degree of freedom of design change, thereby distributing the wind discharged from the shower duct to the entire air flow evenly to the entire foot, the influence of the wind easily Can be distributed up to blind spots.

1 is a cross-sectional view showing a conventional vehicle air conditioner,
2 is a perspective view showing a conventional vehicle air conditioner,
Figure 3 is a comparison of the driver's seat temperature distribution for each product when the conventional shower duct manufactured by the blow molding method and the injection method,
4 is a perspective view showing the vehicle air conditioner 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 illustrating a state in which the shower duct of FIG. 5 is disassembled;
FIG. 7 is a partial perspective view of FIG. 6 viewed from below;
8 is a cross-sectional view taken along the line AA of FIG.
9 is a cross-sectional view showing a 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 defrost vent 112, the face vent 113, the other side (outlet side), The floor vents 114 and 115 are formed and the air conditioning case 110 having the cold air passage P1 and the hot air passage P2 is formed on the air passage therein, and spaced apart from each other on the air passage inside the air conditioning case 110. And an evaporator 101 and a heater core 102 installed between the evaporator 101 and the heater core 102 and a cold air passage P1 for bypassing the heater core 102 and the heater. It is configured to include a temperature control door 130 for adjusting the opening degree of the hot air passage (P2) passing through the core (102).

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

The blower 120 is provided with a blower fan (not shown) therein, and forcibly sucks inside or outside air to blow air to the air inlet 111 of the air conditioning case 110.

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 the front occupant, and the floor vents 114 and 115 are It is for discharging air toward the passenger's foot.

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. .

Here, the floor vents 114 and 115 are formed on both side surfaces 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 vent 114, 115 are opened and closed by the mode door, respectively, the opening degree is adjusted, that is, the mode door is the defrost vent 112 And a defrost door 117 for opening and closing the door, 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 is composed of a rotating shaft rotatably coupled to the inner wall surface of the air conditioning case 110, and a plate formed on the side of the rotating shaft.

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

On the other hand, the temperature control door 130 and the mode door is 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 and the rotational operation Cold and hot air passage (P1) (P2) and the opening degree of each of the vent (112 ~ 115) is adjusted.

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

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

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

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

In addition, the shower duct 140 is connected to the front floor vent 114 formed on both sides of the air conditioning case 110 so as to discharge the air toward each passenger's foot of 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, a brake pedal, and the like are installed on the driver's seat side, so that the shower duct 140 provided on the driver's seat side and the shower duct 140 installed on the passenger seat side are formed. Are formed differently from each other.

The shower duct 140 has a connection portion 141 connected to the floor vent 114 of the air conditioning case 110 and extends in a predetermined form from the connection portion 141 to discharge wind toward the passenger's foot. The discharge duct unit 142 is formed.

The discharge duct 142 may be configured in various ways according to the vehicle body structure. The discharge duct 142 may be bent in a “b” shape as shown in the drawing.

The shower duct 140 is manufactured by an injection method, and is divided into two left and right sides as shown in the drawing so as to enable injection into a mold, and then assembled with each other to form one shower duct 140.

In addition, the shower duct 140 is provided with a lower discharge port 143 and a side discharge part 145 to discharge air passing through the floor vent 114 toward each passenger's foot of the driver's seat and the passenger seat.

First, the lower discharge port 143 is formed through the lower surface of the shower duct 140.

That is, a plurality of lower discharge ports 143 are formed on the lower surface of the discharge duct part 142 of the shower duct 140 at predetermined intervals from each other.

At this time, the plurality of lower discharge ports 143 are formed in different sizes, that is, the size of the plurality of lower discharge ports 143 to adjust the amount of air discharged to the passenger's foot so that the passengers feel comfortable. .

For example, when the temperature near the floor vent 114 is higher and the temperature is lower as it moves away from the floor vent 114, the air volume is adjusted by adjusting the size of the plurality of lower discharge ports 143. Minimize the temperature deviation.

Of course, since it is difficult to adjust the entire occupant's foot to an even temperature distribution using only the lower discharge port 143, the side discharge part 145 is further provided in the present invention.

The side discharge part 145 is formed through the side of the shower duct 140 to diversify the discharge direction of the wind discharged through the shower duct 140 in various directions.

That is, the lower discharge port 143 is insufficient to cover the entire area of the occupant's foot because the wind is discharged only in the downward direction, and thus the side discharge part 145 is further provided on the side surface of the shower duct 140. By diversifying the discharge direction in several directions, it is possible to minimize the temperature deviation over the entire area of the passenger's foot and to have an even temperature distribution.

The side discharge part 145 extends outward from the side discharge port 146 formed in the side surface of the shower duct 140 and the side surface of the shower duct 140 to form the side discharge hole 146. It consists of a control plate 147 for adjusting the wind direction and amount of wind discharged through.

In addition, a plurality of side discharge holes 146 are formed on the side surface of the shower duct 140 at regular intervals and are formed independently of the lower discharge hole 143.

That is, the side discharge port 146 is not connected to the lower discharge port 143 and is formed to be independent from the lower discharge port 143 by a predetermined interval.

In addition, the control plate 147 is formed at the edge of the side discharge port 146, and is formed to gradually open from the side discharge port 146 toward the lower direction.

That is, the control plate 147 is formed extending from the upper edge of the side discharge port 146 and is formed to be inclined at a predetermined angle θ in the downward direction.

Due to this, the lower portion of the control plate 147 is formed to open in the downward direction. At this time, the opening of the lower portion of the control plate 147 can be changed according to the vehicle body structure.

Here, the lower part of the control plate 147 is formed to be opened in the lower direction, the ejection direction of the mold when the injection molding of the shower duct 140 is the same as the lower discharge port 143, it is easy to injection molding.

As such, the wind direction and the amount of air discharged by the position of the side discharge port 146 formed on the side surface of the shower duct 140 and the opening angle θ of the control plate 147 may be adjusted.

That is, as the opening angle θ of the control plate 147 decreases, the air volume decreases, and the wind direction approaches the vertical direction. As the opening angle θ of the control plate 147 increases, the wind direction increases, and the wind direction increases. Spread outwards.

As such, the direction of the wind and the amount of air can be adjusted through the position of the side discharge port 146 and the opening angle θ of the control plate 147, and the discharge direction can be diversified in several directions. By minimizing the temperature deviation over the entire area of the foot, even temperature distribution can improve heating performance and comfort.

In addition, since the finishing work is unnecessary compared to the existing blow molding products, the manufacturing cost can be reduced, and the wind direction and the air volume can be adjusted by changing the opening angle θ of the control plate 147, thereby increasing the freedom of design change.

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

The floor mode among the air discharge modes (vent mode, bi-level mode, floor mode, mix mode, defrost mode) will be described with reference to FIG. In addition, it will be described as the case where 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.

Therefore, the air blown by the blower device 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 to flow to 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. At this time, some of the warm air flowing to the floor vents 114 and 115 flows to the rear seat. And, some flow to the driver's seat shower duct 140 and the passenger seat shower duct 140, respectively.

Thereafter, the warm air flowing along the inside of the shower duct 140 includes a plurality of lower discharge holes 143 formed on the lower side of the shower duct 140 and a plurality of side discharge parts 145 formed on the side of the shower duct 140. Through the discharged to the driver's and passenger's side passenger's foot.

At this time, the amount of air discharged through the plurality of side discharge parts 145 of the shower duct 140 passes through the side discharge port 146 and then the air direction and the amount of air by the opening angle θ of the control plate 147. It is adjusted and discharged toward the occupant's foot.

Therefore, the temperature deviation is minimized over the entire area of the passenger's foot to improve heating performance and comfort, and to prevent the specific foot sickness of the passenger.

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

As described above, in the above, only the case where the configuration in which the side discharge port 146 and the adjusting plate 147 are formed on the side surface of the shower duct 140 has been described is applied to the semi-center type air conditioner, but is not limited thereto. The same effect can be applied to all air-conditioning devices such as center mounting type air conditioner, three-piece type air conditioner, left and right independent air conditioner, and the same effect can be obtained.

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: connecting portion
142: discharge duct portion 143: lower discharge port
145: side discharge portion 146: side discharge port
147: throttle

Claims

An air inlet 111 is formed at one side, and an air conditioning case 110 having a defrost vent 112, a face vent 113, a floor vent 114, and 115 formed at the other side to discharge air into the vehicle compartment, and the floor vent. The shower duct is connected to the 114 and extends a predetermined length to the driver's seat and the passenger seat, respectively, and has a lower discharge port 143 formed at the lower side to discharge the air passing through the floor vent 114 toward each passenger's foot of the driver's seat and the passenger seat. In the vehicle air conditioner comprising a 140,
On the side surface of the shower duct 140, the side discharge portion 145 is formed to diversify the discharge direction of the wind discharged through the shower duct 140 in various directions,
The side discharge part 145 extends outward from the side discharge port 146 formed through the side surface of the shower duct 140 and the side surface of the shower duct 140 to form the side discharge hole 146. Consists of a control plate 147 for adjusting the wind direction and amount of wind discharged through,
The side discharge port 146 is formed on the side of the shower duct 140 is spaced apart from each other by a predetermined interval and is formed to be independent of the lower discharge port 143,
The side discharge port 146 is formed at a position spaced upward from the lower discharge port 143, and the control plate 147 protrudes from the side discharge port 146 in the lateral direction to diversify the discharge direction of air in various directions. Vehicle air conditioner, characterized in that.

delete

The method of claim 1,
The control plate (147) is formed on the edge of the side discharge port (146), characterized in that the vehicle is formed so as to gradually open from the side discharge port (146) toward the downward direction.

The method of claim 1,
The lower portion of the control plate (147) is formed to be opened in the lower direction so that the ejection direction of the mold during injection molding of the shower duct 140 is the same as the lower discharge port (143) characterized in that the vehicle.

The method of claim 1,
The shower duct 140 is a vehicle air conditioning apparatus, characterized in that manufactured by the injection method.