KR102635110B1 - Air conditioner for vehicles - Google Patents

Abstract

A vehicle air conditioning system is disclosed that can increase efficiency by dramatically improving the resistance of air flow in an air flow path. An air conditioning system for a vehicle includes a case formed with an air inlet and an air outlet and an air passage formed therein, a blower unit that blows air to the air inlet, and a cooling means sequentially provided in the air flow direction on the air passage of the case. and a heating means, wherein the air outlet of the case includes a floor outlet and a first vent outlet, and the floor outlet and the first vent outlet are located at a lower part of the heating means (103) in the height direction. and the floor discharge port is disposed within the width of the heating means.

Description

Vehicle air conditioning system {AIR CONDITIONER FOR VEHICLES}

The present invention relates to an air conditioning device for a vehicle, and more specifically, to an air conditioning device for a vehicle that is installed on the rear seat of a vehicle and performs air conditioning of the rear seat of the vehicle separately from the air conditioning device at the front of the vehicle.

A vehicle air conditioning system is a device for cooling or heating the vehicle interior by introducing air from outside the vehicle into the vehicle interior or heating or cooling the air inside the vehicle during circulation. Inside the air conditioning case, an evaporator for cooling and a heater core for heating are provided. A vehicle air conditioning system is configured to selectively blow air cooled or heated by an evaporator or heater core to each part of the vehicle interior using a door for switching the blowing mode.

Automotive air conditioning systems are configured to discharge air for cooling or heating from a vent duct installed in the instrument panel at the front of the vehicle interior, so they can be used in vehicles with a large interior space, such as luxury cars or large vehicles such as vans or 4-wheel drive vehicles commonly known as RVs. In this case, the cooling or heating effect does not reach the rear seats sufficiently. To solve this problem, in vehicles with large interior spaces, a separate rear air conditioning system is installed between the side out panel (Side Out PNL) and the luggage trim to assist with cooling and heating performance for the rear seats. I'm doing it.

Figure 1 is a cross-sectional view showing a conventional rear air conditioning system for a vehicle. As shown in Figure 1, a conventional rear air conditioning system for a vehicle is provided with a blower 8 on one side. In cooling mode, the air discharge passage (2) through which air flows through the heater core (1) is closed. In the heating mode, the air discharge passage (4) on the evaporator side through which the air passing through the evaporator (3) flows is closed. In mixing mode, the air discharge passage (2) on the heater core side is partially opened and the air discharge passage (4) on the evaporator side is partially opened to communicate with each other, so that the air passing through the evaporator (3) and the heater core (1) are opened. The passing air is mixed with each other. The air passage 5 is provided with a temp door 7 that is rotatably installed in the case 6.

Conventional rear air conditioning systems for vehicles can control the temperature in a direction that improves mixing properties, but the location of the Temp door (7), which has a temperature control function, is located in the middle of the passage of the air passage (5), so the Temp door (7) with temperature control function is located in the middle of the passage of the air passage (5). 7), vibration and noise occur, and the temperature door (7) is located on the air passage (5) and blocks the air flow, which may reduce the air volume.

Figure 2 is a cross-sectional view showing another conventional rear air conditioning system for a vehicle. As shown in FIG. 2, a conventional rear air conditioning system for a vehicle includes a case 10. The case 10 has a blowing passage 11 having internal and external air inlets 11a and 11b at one end of the interior, and a vent outlet 12 communicating with a vent duct for blowing air from the blowing passage 11 to the roof side of the vehicle. ) and a floor outlet 13 that communicates with the floor duct for blowing air to the floor side of the vehicle. The case 10 forms one air passage 14 extending from the blowing passage 11 to the vent outlet 12 and the floor outlet 13.

A blower unit 20 is installed in the blowing passage 11 to force internal and external air through the internal and external air inlets 11a and 11b, and in the air passage 14a closest to the blower unit 20. The evaporator 30 is installed vertically. On the downstream side of the evaporator 30, heater cores 40 are installed approximately vertically at a predetermined distance, and the rear portion of the heater core 40 is maintained at a constant distance from the case 10 to form a hot air passage 14b.

Between the evaporator 30 and the heater core 40, there is a temperature control door that blocks air from flowing into the heater core 40 in the cooling mode and blocks the air flow path to allow air to flow into the heater core 40 in the heating mode. (50) is installed to be rotatable about the shaft portion (51). The cooling mode, heating mode, and mixing mode are determined depending on the position of the temperature control door 50. That is, when the temperature control door 50 is rotated to the position shown in a dotted line to close the cold air passage 14c, it is in the heating mode, and the temperature control door 50 is rotated to the position shown in a solid line to close the heater core. When the air flow to the (40) side is blocked, it is a cooling mode, and when the door 50 is rotated to the position shown in the double-dashed line, it is a mixing mode.

In the mixing mode, part of the cold air that has been heat exchanged through the evaporator 30 passes through the heater core 40, and the remainder passes through the cold air passage 14c without passing through the heater core 40. The warm air that has heat-exchanged through (40) and the cold air that has not passed through the heater core (40) are mixed in the mixing zone (MZ) formed on the evaporator (30) and the upper part of the heater core (40) and discharged into the room. . In this case, symbol 60 is a blowing mode switching door rotatably installed around the shaft 61 between the vent outlet 12 and the floor outlet 13, and is used to close the vent outlet 12 or open the floor outlet 13. It serves to close or allow air to flow through both the vent outlet (12) and the floor outlet (13).

Such a conventional rear air conditioning system for a vehicle has a problem of poor temperature mixing due to differences in cross-sectional areas and passage resistances between the hot air passage 14b and the cold air passage 14c. In addition, due to space constraints on the rear seat of the vehicle, the mixing zone (MZ) in the case is small, resulting in a large temperature difference between the top and bottom of the discharged air. In addition, resistance is generated in the internal air flow path structure of the rear air conditioning system for vehicles, so it is possible to maintain a constant wind displacement of air discharged to both sides, but there is a problem in that improving wind displacement through resistance is disadvantageous in reducing wind volume and noise.

In order to solve such conventional problems, the present invention provides a vehicle air conditioning device that can increase efficiency by dramatically improving the resistance of air flow in the air flow path.

An air conditioning system for a vehicle according to the present invention includes a case formed with an air inlet and an air outlet and an air passage formed therein, a blower unit blowing air to the air inlet, and a case sequentially in the direction of air flow on the air passage of the case. In the air conditioning device for a vehicle including a cooling means and a heating means, the air discharge port of the case includes a floor discharge port and a vent discharge port, and the floor discharge port and the vent discharge port are disposed below the heating means in the height direction, The floor outlet is disposed within the width of the heating means.

The vehicle air conditioning system according to the present invention increases efficiency by allowing air to pass through the front of the cooling means in vent mode, and the cold air passing through the cooling means is guided to the second temperature control door and the floor mode door and is directly connected to the vent outlet. When in heating mode, air via the heating means is delivered directly to the floor discharge port, which has the effect of reducing wind pressure and wind volume loss.

In addition, in mixing mode, various mode doors are located close to one side of the mixing zone where air from the first cold air passage, second cold air passage, and warm air passage are all visible and mixed, so the second temperature control door can be adjusted to control the air from the mixing zone. It is effective in making up for the insufficient air volume with simple control.

1 is a cross-sectional view showing a conventional rear air conditioning system for a vehicle;
Figure 2 is a cross-sectional view showing another conventional rear air conditioning system for a vehicle;
Figure 3 is a cross-sectional view showing a vehicle air conditioning system according to an embodiment of the present invention;
Figure 4 is a cross-sectional view showing the vent mode of a vehicle air conditioning system according to an embodiment of the present invention;
Figure 5 is a cross-sectional view showing a heating mode of a vehicle air conditioning system according to an embodiment of the present invention;
Figure 6 is a cross-sectional view showing a mix mode of a vehicle air conditioning system according to an embodiment of the present invention;
Figure 7 is a cross-sectional view showing a vehicle air conditioning system according to another embodiment of the present invention;
Figure 8 shows a cooling mode of a vehicle air conditioning system according to another embodiment of the present invention.
Figure 9 shows a heating mode of a vehicle air conditioning system according to another embodiment of the present invention;
Figure 10 shows a mixing mode of a vehicle air conditioning system according to another embodiment of the present invention.
FIG. 11 is an enlarged view of a portion of FIG. 10.

Below, the technical configuration of the vehicle air conditioning system will be described in detail according to the attached drawings.

Figure 3 is a cross-sectional view showing an air conditioning system for a vehicle according to an embodiment of the present invention. As shown in Figure 3, the vehicle air conditioning device according to an embodiment of the present invention includes a case 100, a blower unit 150, a cooling means 102 and a heating means 103, a temperature control means, and It includes various mode doors (116, 117).

An air inlet for introducing air is formed on one side of the blower unit 150, which is the inlet side of the case 100, and an air discharge port is formed on the outlet side for discharging air. The air outlet consists of a floor outlet (112a) and a pair of vent outlets (112b, 112c). The pair of vent outlets consists of a first vent outlet (112b) and a second vent outlet (112c) that are in communication with each other. An air passage is formed inside the case 100, and the blower unit 150 is provided inside the case 100 to forcefully blow air into the air inlet of the case 100.

When a vehicle air conditioning system is installed on the rear seat of a vehicle for rear use, a pair of vent outlets (112b, 112c) is formed, for example, one outlet is formed to discharge to the left side of the rear seat of the vehicle, and the other outlet is formed to discharge to the left side of the rear seat of the vehicle. It can be formed so that air is discharged to the right. Additionally, the vent outlet can be formed in the opposite way, and the rear air conditioning system for a vehicle can be changed depending on the installation location in the rear seat. This will be explained later.

The cooling means 102 and the heating means 103 are sequentially installed in the air flow direction on the internal air passage of the case 100. In this embodiment, the cooling means 102 may be composed of an evaporator that exchanges heat between a refrigerant and air, and the heating means 103 may be composed of a heater core that exchanges heat between coolant and air.

The temperature control means adjusts the opening degree so that the air passing through the cooling means 102 selectively flows through the heating means 103. That is, the temperature control means includes a first temperature control door 230 and a second temperature control door 240. The detailed configuration of the temperature control means will be described later.

The mode doors (116, 117) are for the rear and include a vent mode door (116) that adjusts the opening degree of the rear floor outlet (112a) and a floor mode door (117) that adjusts the opening degree of a pair of vent outlets (112b, 112c). do. As the mode doors 116 and 117 are rotated, the opening degree of the floor outlet 112a and the pair of vent outlets 112b and 112c are adjusted to control the amount of discharged air. The floor outlet (112a) and the first vent outlet (112b) may be formed to discharge downward in the direction of gravity, and the second vent outlet (112c) may be formed to bypass and discharge upward. Accordingly, the present invention It is not limited to this.

The internal air passage of the case 100 includes a warm air passage 270, a first cold air passage 210, and a second cold air passage 220. The warm air passage 270 forms a flow path so that air that has passed through the cooling means 102 passes through the heating means 103. The first cold air passage 210 forms a flow path so that air passing through the cooling means 102 bypasses the heating means 103 downward. The second cold air passage 220 is spaced apart from the first cold air passage 210 and forms a flow path so that air passing through the cooling means 102 bypasses the heating means 103 upward.

The vehicle air conditioner includes a first cool air passage 210 through which air passing through the cooling means 102 is directed upward and a second cold air passage 220 directed downward in the internal air passage of the case 100, thereby forming a cooling means. The entire upper and lower areas of (102) can be utilized evenly, and one mixing zone (MZ) is formed in which the air passing through the two cold air passages (210, 220) and the warm air passage (270) is mixed, Miniaturization of air conditioning equipment is possible.

Additionally, the floor discharge port 112a discharges air to the bottom of the rear seat of the vehicle, and mainly requires warm air. Hot air passing through the heating means 103 may be guided by the extension part 254 through the warm air passage 270 and directly delivered to the floor outlet 112a. That is, the extension portion 254 extends from the support partition 253 toward the floor outlet 112a, and forms a warm air flow path so that hot air passing through the heating means 103 is directed toward the floor outlet 112a. By the extension part 254, hot air passing through the warm air passage 270 can be guided and discharged in a straight line to the floor discharge port 112a, thereby minimizing resistance in the path of hot air.

In addition, cold air passing through the cooling means 102 passes through the first vent outlet 112b, which is disposed on the upper side of the rear seat of the vehicle and mainly requires cold air, through the first cold air passage 210. The passing air is guided by the second temperature control door 240, which closes the warm air passage 270, and the floor mode door 117, which closes the floor outlet 112a, and is directed directly to the first vent outlet 112b. It can be delivered. By the second temperature control door 240 and the floor mode door 117, cold air passing through the cold air passage of the first cold air passage 210 can be guided and discharged in a straight line to the first vent outlet (112b). Resistance in the cold air flow path can be minimized.

Additionally, the cooling means 102 and the heating means 103 are horizontally spaced apart from each other to the left and right in the case 100. In this case, the cooling means 102 and the heating means 103 do not need to be exactly horizontal, and it is sufficient to arrange them in a structure substantially horizontal. In addition, the air introduced from the blower unit 150 is configured to flow from left to right in the direction of the drawing and be discharged through the floor discharge port 112a, which is formed to be discharged downward. In the air flow direction, a cooling means 102 and a heating means 103 are provided in that order.

As the cooling means 102 and the heating means 103 are arranged horizontally, the front-to-back width of the vehicle on which the case 100 is mounted can be reduced. Because of this, there are fewer restrictions on the installation space of the air conditioning device. In particular, when the vehicle air conditioning system according to the present invention is placed on the rear side of the vehicle for rear use, it has the advantage of securing a significant amount of space.

The first cold air passage 210 is provided between the lower inner wall of the case 100 and the heating means 103, and the second cold air passage 220 is provided between the upper inner wall of the case 100 and the heating means 103. It is provided in

A partition wall 252 is formed inside the case 100 to partition the air passing through the cooling means 102 to flow into the first cold air passage 210 and the second cold air passage 220. The partition wall 252 is formed between the cooling means 102 and the heating means 103, and surrounds and supports one side (lower side) of the heating means 103. Meanwhile, the heating means 103 is provided with a support partition 253 that surrounds and supports the other side (upper side) of the heating means 103, and an extension part 254 extending from the support partition 253.

The temperature control means includes a first temperature control door 230 and a second temperature control door 240. The first temperature control door 230 is provided on the upper side of the heating means 103 between the cooling means 102 and the heating means 103, and is located on the inlet side of the hot air passage 270 and the second cold air passage 220. Adjust the opening degree of the inlet side. The second temperature control door 240 is provided below the heating means 103 and adjusts the opening degree of the outlet side of the hot air passage 270 and the outlet side of the first cold air passage 210.

The rotation of the first temperature control door 230 is limited by the partition wall 252, and the rotation of the second temperature control door 240 is limited by the extension part 254 extending from the support partition wall 253. The rotation axis of the first temperature control door 230 is located at one end of the support partition 253. When the first temperature control door 230 is rotated to its maximum counterclockwise, it touches one end of the partition wall 252 and blocks the warm air passage 270, and when it is rotated to its maximum clockwise, it touches the upper inner wall of the case 100. It touches a part and blocks the second cold air passage 220.

The rotation axis of the second temperature control door 240 is located at the other end of the partition wall 252. When the second temperature control door 240 is rotated to its maximum counterclockwise, it touches the end of the extension 254 of the support partition 253 and blocks the warm air passage 270, and when it is rotated to its maximum clockwise, the case ( It touches a part of the lower inner wall of 100) and blocks the first cold air passage 210.

The first temperature control door 230 and the second temperature control door 240 are disposed above and below the heating means 103 and control the opening degrees of the hot air passage and the two cold air passages, respectively, thereby further improving the mixing of cold and warm air. This has the effect of improving the reliability of temperature control through precise control.

The partition wall 252 surrounds and supports the heating means 103 and at the same time partitions the first cold air passage 210 and the second cold air passage 220. The air heading toward the second cold air passage 220 among the air divided by the partition wall 252 flows into the second cold air passage 220 and the warm air passage 270 by the first temperature control door 230 and flows into the extended portion. The air heading to the mixing zone (MZ) along 254, and the air heading to the first cold air passage 210, heads to the mixing zone (MZ) via the second temperature control door 240. In the mixing zone (MZ), air passing through the first cold air passage 210, the second cold air passage 220, and the warm air passage 270 all meet and mix.

The air mixed in the mixing zone (MZ) is discharged to the bottom of the rear seat of the vehicle through the floor outlet (112a) or to the rear seat through a pair of vent outlets (112b, 112c).

The floor outlet (112a) and the first vent outlet (112b) are formed adjacent to each other toward the lower side of the case 100 near the mixing zone, and the second vent outlet (112c) is formed between the case 100 and the partition wall 280. It is formed toward the upper side of the case 100 via . At this time, the partition wall 280 is spaced apart from the support partition 253 and the extension part 254 to partition the air flowing in the second cold air passage 220 and the air flowing in the second vent outlet 112c.

A floor mode door 117 is provided on one side of the floor outlet 112a to adjust the opening degree of the floor outlet 112a, and a vent mode door 116 is provided to control the opening degree of the pair of vent outlets 112b and 112c. It is provided. The vent mode door 116 and the floor mode door 117 are disposed at a position where the floor outlet 112a and the first vent outlet 112b face each other, and the second temperature control door 240 and the floor mode door 117 are connected to each other. By guiding the cold air to the first vent outlet (112b) and the warm air to the floor outlet (112a), the air volume can also be adjusted.

The second temperature control door 240 guides hot air to be discharged in a straight line through the floor outlet (112a) and at the same time guides cool air to be discharged in a straight line through the vent outlets (112b, 112c).

Since the second vent outlet (112c) is formed at the end of a passage extending along the outer wall of the case 100 and the partition wall 280, the air discharged through the second vent outlet (112c) is connected to the first vent outlet (112b). The air pressure may be lower than that of the air discharged. That is, the air discharged through the first vent outlet 112b has a higher pressure than the air discharged through the second vent outlet 112c.

This is because, for example, when the vehicle air conditioner according to the present invention is installed on one side of the rear seat of a vehicle, if the vehicle air conditioner is installed on the right side, the air pressure discharged to the left of the rear seat may be low, so it is connected to the second vent outlet (112c). Compared to this, the first vent outlet 112b, which discharges relatively high air pressure, can be installed on the left side.

In addition, as will be further explained in the embodiment of FIG. 6 below, the first temperature control door 230 opens the second cold air passage 220 and the warm air passage 270, and the second temperature control door 240 opens the first temperature control door 240. When the cold air passage 210 is opened, the air passing through the first cold air passage 210, the second cold air passage 220, and the warm air passage 270 are mixed in the mixing zone (MZ).

In this case, the air passing through the second cold air passage 220 is directed to the mixing zone (MZ) across the support partition 253, the extension part 254, and the partition partition 280. That is, the floor discharge port 112a is formed on the lower side of the case 100 near the mixing zone (MZ), and the air passing through the heating means 103 is guided downward through the extension portion 254 to increase the air volume. And it can be discharged directly to the floor discharge port (112a) without loss of wind pressure.

The extension portion 254 extends downward from the end of the support partition 253 that supports one side of the heating means 103 and guides air passing through the warm air passage 270 to the mixing zone (MZ). In addition, the partition walls 280 are formed at regular intervals from the extension portion 254 to guide air passing through the second cold air passage 220 to the mixing zone (MZ). Likewise, air passing through the first cold air passage 210 formed between the partition wall 252 and a portion of the case 100 flows directly to the mixing zone (MZ).

Figure 4 is a cross-sectional view showing a vent mode of a vehicle air conditioning system according to an embodiment of the present invention.

As shown in FIG. 4, in the vent mode, the first temperature control door 230 closes the hot air passage 270 and opens the second cold air passage 220, and the second temperature control door 240 closes the first temperature control door 240. The cold air passage 210 is open. Additionally, the floor mode door 117 closes the floor outlet 112a, and the vent mode door 116 opens a pair of vent outlets 112b and 112c. The air introduced through the blower unit 150 passes through the cooling means 102, is cooled, and then passes through the first cold air passage 210 and the second cold air passage 220 through a pair of vent outlets 112b and 112c. It is discharged into the vehicle interior.

In vent mode, the air introduced through the blower unit 150 flows divided into the first cold air passage 210 formed on the lower side of the case 100 and the second cold air passage 220 formed on the upper side, so the cooling means ( Since it passes through the upper and lower front surfaces of the cooling means 102, optimal performance can be achieved. In other words, the present invention has the effect of solving the problem of poor cooling performance in a conventional vehicle rear air conditioning system where one side of the cooling means 102 is closed and air flows concentrated in a part of the cooling means.

In addition, cold air passing through the first cold air passage 210 is directed in a straight line by the second temperature control door 240, which closes the warm air passage 270, and the floor mode door 117, which closes the floor outlet 112a. This has the effect of reducing the loss of wind pressure and wind volume by being transmitted to the first vent outlet (112b).

Figure 5 is a cross-sectional view showing a heating mode of a vehicle air conditioning system according to an embodiment of the present invention.

Referring to FIG. 5, in the heating mode, the first temperature control door 230 opens the hot air passage 270 and closes the second cold air passage 220, and the second temperature control door 240 opens the first temperature control door 240. The cold air passage 210 is closed. Additionally, the vent mode door 116 closes the pair of vent outlets 112b and 112c, and the floor mode door 117 opens the floor outlet 112a. The air introduced through the blower unit 150 is heated through the heating means 103 and then discharged into the vehicle interior through the floor discharge port 112a.

In this case, the air introduced through the blower unit 150 passes in a straight line through the heating means 103, the warm air passage 270, and the floor discharge port 112a, thereby achieving optimal performance without loss of air volume. There is a possible effect. That is, the hot air passing through the warm air passage 270 is guided by the extension portion 254 toward the floor discharge port 112a and the second temperature control door 240 that closes the first cold air passage 210. Air can be delivered directly to the floor outlet (112a). Through this configuration, air passage resistance can be minimized and loss of wind pressure and wind volume can be reduced.

Figure 6 is a cross-sectional view showing a mix mode of a vehicle air conditioning system according to an embodiment of the present invention.

As shown in FIG. 6, in the mix mode, the first temperature control door 230 opens both the second cold air passage 220 and the warm air passage 270, and the second temperature control door 240 opens the first cold air passage. (210) is open. In addition, the vent mode door 116 and the floor mode door 117 also open both the floor discharge port 112a and the pair of vent discharge ports 112b and 112c. Accordingly, the air introduced through the blower unit 150 is cooled by passing through the cooling means 102, and a portion of the cooled air is heated by passing through the heating means 103 and then mixed in the two mixing zones (MZ). Afterwards, it is discharged into the vehicle interior through the floor outlet (112a) and a pair of vent outlets (112b, 112c).

In Figure 6, the mixing zone (MZ) is a place where the air from the first cold air passage 210, the second cold air passage 220, and the warm air passage 270 are all visible and mixed, and in this mixing zone (MZ) The mode doors 116 and 117 are immediately adjacent, and similarly, the floor outlet 112a and the first vent outlet 112b are also directly connected.

In addition, precise temperature control is possible through two temperature control doors (230, 240). For example, by adjusting the second temperature control door 240, the amount of air flowing through the floor outlet 112a can be adjusted. In other words, there is an effect of adjusting the two temperature control doors (230, 240) to compensate for the insufficient air volume in the mixing zone (MZ).

Meanwhile, Figure 7 is a cross-sectional view showing an air conditioning system for a vehicle according to another embodiment of the present invention.

As shown in FIG. 7, a vehicle air conditioning device according to another embodiment of the present invention includes a case 100, a blower unit 150, a cooling means 102 and a heating means 103, and a first temperature control unit. It includes a door 230, a second temperature control door 240, and a mode door 170.

The air outlet of the case 100 includes a floor outlet (112a), a first vent outlet (112b), and a second vent outlet (112c). The floor discharge port 112a and the first vent discharge port 112b are disposed below the heating means 103 in the height direction (h). Additionally, a floor discharge port 112a is disposed within the width d of the heating means 103. The first vent outlet 112b may discharge air to the right in the vehicle width direction, and the second vent outlet 112c may discharge air to the left.

As the floor outlet (112a) and the first vent outlet (112b) are disposed at the lower part of the heating means (103), the conventional return passage through which the air passing through the heating means (103) is guided back to the upper part can be eliminated, Ultimately, the width of the air conditioning device can be reduced and a compact design is possible. In addition, as the floor outlet (112a) is disposed within the width (d) of the heating means (103), it has the effect of reducing the size of the air conditioning device and minimizes heat loss by minimizing the distance between the heating means (103) and the floor outlet (112a). can be reduced and the heating effect can be maximized.

The air passage within the case 100 includes a warm air passage 270, a first cold air passage 210, and a second cold air passage 220. The warm air passage 270 forms a flow path so that air that has passed through the cooling means 102 passes through the heating means 103. The first cold air passage 210 forms a flow path so that the air passing through the cooling means 102 bypasses the heating means 103 downward, and the second cold air passage 220 forms a flow path for air passing through the cooling means 102. A flow path is formed so that air bypasses the heating means 103 upward.

The first temperature control door 230 is disposed between the cooling means 102 and the heating means 103, and opens and closes the inlet passage of the heating means 103 and the communication passage on the mode door 170 side. The second temperature control door 240 is disposed on the downstream side of the heating means 103, and separates and guides the discharge passage of the heating means 103 and the discharge passage of the cooling means 102.

The warm air passage 270 is opened and closed at the inlet position by the first temperature control door 230 and at the discharge position by the second temperature control door 240. In addition, the first cold air passage 210 is opened and closed by the second temperature control door 240, and the second cold air passage 220 is directly connected to the mode door 170 and is connected to the first temperature control door 230. It is opened and closed by

The mode door 170 is rotatably provided between the floor outlet 112a and the first vent outlet 112b to adjust the opening degrees of the floor outlet 112a and the first vent outlet 112b. The mode door 170 is made of a dome-shaped rotary door type.

A second cold air passage 220, a warm air passage 270, and a first cold air passage 210 are formed sequentially from the top to the bottom, and these passages join in the mixing zone (MZ). The mixing zone (MZ) is a zone in which air passing through the warm air passage 270, the first cold air passage 210, and the second cold air passage 220 is mixed, and includes a floor outlet 112a and a first vent outlet 112b. Each is formed in

The mixing zone (MZ) is formed inside the rotary type mode door 170. That is, the dome of the mode door 170 has a streamlined shape with a concave interior, and the floor discharge port 112a is completely closed when the mode door 170 is rotated to its maximum clockwise. With the mode door 170 completely closing the floor outlet 112a, the inside of the dome faces the outlet of the warm air passage 270 on the upper side.

Additionally, with the mode door 170 fully rotated counterclockwise, the passages toward the first vent outlet 112b and the second vent outlet 112c are completely closed as shown in FIG. 7 . In a state where the mode door 170 completely closes the flow path to the first vent outlet 112b and the second vent outlet 112c, the inside of the dome area faces the first cold air passage 210 on the left, and the dome area The outside faces the outlet of the second cold air passage 220. In this case, when the mode door 170 completely closes the first vent outlet 112b, the second cold air passage 220 communicates with the first vent outlet 112b.

Figure 8 shows a cooling mode of a vehicle air conditioning system according to another embodiment of the present invention. Referring to FIG. 8, in the cooling mode, the first temperature control door 230 closes the entrance to the hot air passage 270 and opens the second cold air passage 220. The second temperature control door 240 closes the outlet of the hot air passage 270 and opens the first cold air passage 210. The mode door 170 closes the floor outlet (112a) and opens the flow path to the first vent outlet (112b) and the second vent outlet (112c).

After the air is cooled by passing through the cooling means 102, some of the air is blown through the first cold air passage 210 to the first vent outlet 112b and the second vent outlet 112c, and the other part is blown into the second cold air passage 210. It is blown to the first vent outlet (112b) and the second vent outlet (112c) through the passage 220. In this case, the air blown from the blower unit 150 moves in a straight line through the first cold air passage 210 to the first vent outlet 112b. As a result, the cold air cooled through the cooling means 102 is discharged to the vent outlet in the shortest distance, thereby improving cooling performance and increasing air volume.

Figure 9 shows a heating mode of a vehicle air conditioning system according to another embodiment of the present invention. Referring to FIG. 9, in the heating mode, the first temperature control door 230 opens the entrance to the hot air passage 270 and closes the second cold air passage 220. The second temperature control door 240 opens the outlet of the hot air passage 270 and closes the first cold air passage 210. The mode door 170 opens the floor outlet (112a) and closes the flow path to the first vent outlet (112b) and the second vent outlet (112c).

The air passes through the cooling means 102 and the heating means 103, is heated, and then is blown to the floor outlet 112a through the warm air passage 270. The warm air that has passed through the heating means 103 is discharged directly to the floor discharge port 112a located directly below within the width of the heating means 103, which has the effect of reducing the size of the air conditioning device and the heating means 103 and the floor. By minimizing the distance between the discharge ports (112a), heat loss can be reduced and heating effect can be maximized.

Figure 10 shows a mixing mode of a vehicle air conditioning system according to another embodiment of the present invention, and Figure 11 is an enlarged view of a portion of Figure 10. Referring to FIGS. 10 and 11 , the first temperature control door 230 opens both the inlet of the hot air passage 270 and the second cold air passage 220. The second temperature control door 240 opens both the outlet of the hot air passage 270 and the first cold air passage 210. The mode door 170 opens all passages leading to the floor outlet 112a, the first vent outlet 112b, and the second vent outlet 112c.

After the air is cooled by passing through the cooling means 102, some of the air is blown into the mixing zone (MZ) through the first cold air passage 210, and the other portion is blown into the mixing zone (MZ) through the second cold air passage 220. ) is blown. In addition, another part of the air that has passed through the cooling means 102 passes through the heating means 103, is heated, and is then blown to the mixing zone (MZ) through the warm air passage 270.

In this case, as shown in FIG. 11, the air passing through the hot air passage 270, the first cold air passage 210, and the second cold air passage 220 joins in the mixing zone (MZ), but is connected to the floor discharge port 112a. A first mixing zone (MZ1) is formed on the side, and a second mixing zone (MZ2) is formed on the side of the first vent outlet (112b). In this way, forming the mixing zone in each of the two areas is achieved through a configuration in which the mixing space is formed inside the rotary type mode door 170. Ultimately, the mixing of cold and warm air is improved and the temperature of the discharged air is improved, thereby increasing passenger satisfaction. In the present invention, the temperature improvement effect can be achieved through optimization of the flow path and shape of the mode door without separately increasing the package of the air conditioning device.

So far, the vehicle air conditioning system according to the present invention has been described with reference to the embodiments shown in the drawings, but these are merely examples, and anyone skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true scope of technical protection should be determined by the technical spirit of the attached patent claims.

100: case
102: cooling means 103: heating means
112a: floor outlet 112b: first vent outlet
112c: second vent outlet 116: vent mode door
117: Floor mode door 150: Blower unit
210: first cold air passage 220: second cold air passage
230: first temperature control door 240: second temperature control door
252: partition wall 253: support partition wall
254: extension 270: warm air passage
280: Partition bulkhead MZ: Mixing zone

Claims (20)

A case 100 formed with an air inlet and an air outlet and an air passage formed therein, a blower unit 150 that blows air through the air inlet, and a case 100 sequentially arranged in the direction of air flow on the air passage of the case 100. In the vehicle air conditioning device including a cooling means (102) and a heating means (103),
The air outlet of the case 100 includes a floor outlet (112a) and a vent outlet,
The floor outlet (112a) and the vent outlet are disposed below the heating means (103) in the height direction,
The floor outlet (112a) is disposed within the width of the heating means (103),
A mode door 170 is rotatably provided between the floor outlet 112a and the vent outlet to adjust the opening degree of the floor outlet 112a and the vent outlet,
a warm air passage 270 forming a flow path so that the air passing through the cooling means 102 passes through the heating means 103; a first cold air passage 210 through which air passing through the cooling means 102 bypasses the heating means 103 downward; and a second cold air passage 220 through which the air passing through the cooling means 102 bypasses the heating means 103 upward,
A first temperature control door (230) disposed between the cooling means (102) and the heating means (103) and a second temperature control door (240) disposed downstream of the heating means (103), The first temperature control door 230 adjusts the opening degree of the inlet side of the warm air passage 270 and the inlet side of the second cold air passage 220,
The second temperature control door 240 is an air conditioning device for a vehicle that adjusts the opening degree of the outlet side of the hot air passage and the outlet side of the first cold air passage 210. According to claim 1,
An air conditioning device for a vehicle, wherein the air blown from the blower unit 150 moves in a straight line to the vent outlet through the cold air passage. According to claim 1,
The mode door 170 is a vehicle air conditioning device made of a dome-shaped rotary door type. delete According to claim 1,
A vehicle air conditioning device in which a mixing zone (MZ) in which air passing through the warm air passage 270, the first cold air passage 210, and the second cold air passage 220 is mixed is formed at the floor discharge port 112a and the vent discharge port, respectively. . According to clause 5,
An air conditioning system for a vehicle, characterized in that the mixing zone (MZ) is formed inside the rotary type mode door (170). According to clause 5,
The warm air passage 270 is opened and closed at the inlet position by the first temperature control door 230 and at the discharge position by the second temperature control door 240,
The first cold air passage 210 is opened and closed by the second temperature control door 240,
The second cold air passage 220 is directly connected to the mode door 170 and is opened and closed by the first temperature control door 230. According to clause 5,
When the mode door 170 completely closes the vent outlet, the second cool air passage 220 communicates with the vent outlet. A case 100 formed with an air inlet and an air outlet and an air passage formed therein, a blower unit 150 that blows air through the air inlet, and a case 100 sequentially arranged in the direction of air flow on the air passage of the case 100. An air conditioning system for a vehicle, including a cooling means (102) and a heating means (103), and a temperature control means that adjusts the opening degree so that the air passing through the cooling means (102) selectively flows through the heating means (103). In
The air passing through the heating means 103 is guided and discharged in a straight line to the floor discharge port 112a through the warm air passage,
The air passing through the cooling means 102 is guided in a straight line and discharged through the cold air passage to the first vent outlet (112b),
A mode door is placed at a location where the floor outlet (112a) and the first vent outlet (112b) face each other to guide the air and control the wind volume.
a warm air passage 270 forming a flow path so that the air passing through the cooling means 102 passes through the heating means 103;
A first cold air passage 210 through which the air passing through the cooling means 102 bypasses the heating means 103 downwardly, and
It includes a second cold air passage 220 through which the air passing through the cooling means 102 bypasses the heating means 103 upward,
In the case 100, a mixing zone (MZ) is formed in which air passing through the warm air passage 270, the first cold air passage 210, and the second cold air passage 220 is mixed,
In the case 100,
a floor discharge port (112a) formed on one side of the mixing zone (MZ);
A partition wall 252 formed between the cooling means 102 and the heating means 103 and surrounding and supporting one side of the heating means 103;
A support partition 253 surrounding and supporting the other side of the heating means 103;
an extension portion 254 extending from the support partition 253 toward the floor discharge port 112a; and
Including a second temperature control door 240 that rotates the end of the partition wall 252 about its axis to adjust the opening degree between the hot air passage 270 and the first cold air passage 210,
An air conditioning system for a vehicle, wherein hot air passing through the heating means (103) is guided by the extension portion (254) through the warm air passage (270) and discharged to the floor discharge port (112a). delete According to clause 9,
An air conditioning device for a vehicle, wherein the floor outlet (112a) or the first vent outlet (112b) is disposed below the heating means (103) in the direction of gravity. delete According to clause 9,
The case 100 is:
a floor outlet (112a) and a vent outlet formed on one side of the mixing zone (MZ);
A partition wall 252 formed between the cooling means 102 and the heating means 103 and surrounding and supporting one side of the heating means 103;
a second temperature control door 240 that rotates the end of the partition wall 252 about its axis to adjust the opening degree between the hot air passage 270 and the first cold air passage 210; and
Including a floor mode door 117 that adjusts the opening degree of the floor discharge port 112a,
An air conditioning system for a vehicle, wherein air passing through the first cold air passage (210) is guided by the second temperature control door (240) and the floor mode door (117) and discharged through the vent outlet. delete According to claim 11,
The first cold air passage 210 is provided between the lower inner wall of the case 100 and the heating means 103,
The second cold air passage 220 is an air conditioning device for a vehicle provided between the upper inner wall of the case 100 and the heating means 103. A case 100 formed with an air inlet and an air outlet and an air passage formed therein, a blower unit 150 that blows air through the air inlet, and a case 100 sequentially arranged in the direction of air flow on the air passage of the case 100. An air conditioning system for a vehicle, including a cooling means (102) and a heating means (103), and a temperature control means that adjusts the opening degree so that the air passing through the cooling means (102) selectively flows through the heating means (103). In
The air passing through the heating means 103 is guided and discharged in a straight line to the floor discharge port 112a through the warm air passage,
The air passing through the cooling means 102 is guided in a straight line and discharged through the cold air passage to the first vent outlet (112b),
A mode door is placed at a location where the floor outlet (112a) and the first vent outlet (112b) face each other to guide the air and control the wind volume.
The floor outlet (112a) or the first vent outlet (112b) is disposed below the heating means (103) in the direction of gravity,
The first cold air passage 210 is provided between the lower inner wall of the case 100 and the heating means 103,
The second cold air passage 220 is provided between the upper inner wall of the case 100 and the heating means 103,
The case 100 is:
a floor discharge port (112a) formed on the lower side of the case 100;
It is formed between the cooling means 102 and the heating means 103, and divides the air passing through the cooling means 102 to flow into the first cold air passage 210 and the second cold air passage 220. , a partition wall 252 surrounding and supporting one side of the heating means 103; and
The heating means 103 includes a support partition 253 that surrounds and supports the other side of the heating means 103, and an extension part 254 extending from the support partition 253 toward the floor discharge port 112a. Vehicle air conditioning system. According to claim 16,
It is provided on the upper side of the heating means 103 between the cooling means 102 and the heating means 103, and has an opening degree on the inlet side of the warm air passage 270 and the inlet side of the second cold air passage 220. An air conditioning system for a vehicle including a first temperature control door (230) that adjusts and rotates around one end of the support partition (253), but whose rotation is restricted by the partition wall (252). According to claim 17,
The first temperature control door 230,
When rotated to its maximum counterclockwise, it touches one end of the partition wall 252 and blocks the hot air passage 270, and when rotated to its maximum clockwise, it touches a part of the upper inner wall of the case 100 to form a second cold air passage 220. )A vehicle air conditioning system that blocks air conditioning. According to claim 16,
It is provided below the heating means 103, adjusts the opening degree of the outlet side of the hot air passage 270 and the outlet side of the first cold air passage 210, and rotates with the other end of the partition wall 252 as the axis. An air conditioning device for a vehicle including a second temperature control door (240) whose rotation is restricted by an extension portion (254) extending from the support partition (253). According to clause 19,
The second temperature control door 240,
When rotated to its maximum counterclockwise, it touches the end of the extension 254 of the support partition 253 to block the warm air passage 270, and when rotated to its maximum clockwise, it touches a part of the lower inner wall of the case 100 to block the warm air passage 270. 1 Vehicle air conditioning device that blocks the cold air passage (210).

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