KR101151138B1 - Air Conditioner for Vehicle - Google Patents

Abstract

The present invention relates to a vehicle air conditioner for controlling an indoor temperature by cooling or heating air to blow into an interior of a vehicle, including an air blower 25 for blowing air, and an evaporator for cooling air from the blower 25 ( 21, the heater core 22 for heating the air from the blower 25, the cold air passing through the evaporator 21 or the warm air and mixed air passing through the heater core 22 selectively vents A vehicle air conditioner comprising a temporal door (10) for supplying a temperature to (26) to adjust temperature; The evaporator 21 is disposed perpendicularly to the air discharge direction of the blower 25, the heater core 22 is disposed in a horizontal direction with respect to the air discharge direction of the blower 25, the temper door 10 Is disposed on the downstream of the flow path of the evaporator 21 and the heater core 22 is characterized in that for opening and closing the hot air flow passage 35 or cold air flow passage 30 and mixing cold air and hot air.

According to the present invention described above, since the air is mixed in a plurality of zones such as cold air and warm air are mixed again in the temp door 10, the mixing property of cold air and warm air is improved, and thus a relatively narrow space Installation is also possible.

Air Conditioning Unit, Temp Door, Evaporator, Mixing, Mixing, Baffle, Air Mixing Guide Plate

Description

Air Conditioning System for Vehicles

1 is a configuration diagram showing a first embodiment of a conventional vehicle air conditioner.

2 is a configuration diagram showing a second embodiment of a conventional vehicle air conditioner.

3 is a configuration diagram showing a third embodiment of a conventional vehicle air conditioner.

4 is a configuration diagram schematically showing a vehicle air conditioner according to the present invention.

5 is a perspective view showing a temper which is a main component of the present invention.

Figure 6 is a view showing the flow of air at the time of cooling in the vehicle air conditioner of the present invention.

Figure 7 is a view showing the flow of air during heating in the vehicle air conditioner of the present invention.

8 is a view showing the flow of mixed air during air mixing in the vehicle air conditioner of the present invention.

<Description of the symbols for the main parts of the drawings>

10: Temp.Door 11: Door Shaft

12: hole 13: air mixing guide plate

14: side plate 15: baffle

20: Case 21: Evaporator

22: heater core 23: heater core accommodating portion

24: hot air guide 25: blower

26: Duct 27: Mode control door

30: cold wind flow path 35: hot wind flow path

The present invention relates to a vehicle air conditioner for controlling an indoor temperature by cooling or heating air to blow into an interior of a vehicle. The present invention relates to a vehicle air conditioner that is easily installed in a narrow space by installing a plurality of structures in a specific form. It is about.

In general, an air conditioner installed in a vehicle includes a cooling mode used in the summer season, a heating mode used in the winter season, and a mixing mode for controlling the temperature of the discharged air according to a user's request. In the cooling mode, the air blown from the blower passes through the evaporator, so that cool air is discharged into the room. In the heating mode, the air blown from the blower passes through the heater core. The air conditioner is controlled to be discharged. In addition, the mixing mode is a control mode of the air conditioner for discharging the mixed air made by mixing cold air passing through the evaporator and warm air passing through the heater core to the room.

In general, an air conditioner for a vehicle does not have a large installation space, and thus, the evaporator and the heater core are installed in one space, and the air passing through the evaporator passes through the heater core or bypasses the bypass.

1 to 3 are views illustrating a conventional vehicle air conditioner, and the blower 110, the evaporator 120, the heater core 130, and the temperature control means are disposed in the case 100. The form is shown.

1 is an air conditioner disclosed in Japanese Patent Laid-Open No. 10-329530, in which an evaporator 120 is vertically installed at an air outlet from a blower 110, and a heater core 130 is inclined with respect to an air flow path. The door 141, which is the adjusting means 140, opens and closes the inlet of the heater core 130.

Therefore, when cooling, the door 141 closes the inlet of the heater core 130 so that cool air cooled while passing through the evaporator 120 is discharged, and when the door is heated, the door 141 is heated by the heater core 130. Opening the inlet and closing the bypass passage so that the air passing through the evaporator 120 is heated while passing through the heater core 130 to discharge the warm air.

However, when the user opens the door 141 only half, part of the air passing through the evaporator 120 is heated while passing through the heater core 130, and the remaining air is discharged as cold air through the bypass passage. At this time, if the space between the heater core 130 and the duct 150 is not enough, the bypassed cold air and warm air passing through the heater core 130 are not sufficiently mixed. Therefore, it is difficult to properly control the temperature of the mixed air discharged into the room.

2 is a vehicle air conditioner disclosed in Japanese Patent JP2004249861, the evaporator 120 and the heater core 130 are disposed in the vehicle left and right directions, the blower 110 is disposed upstream of the evaporator 120, the evaporator ( In the downstream direction of 120, there is shown a structure in which a plurality of doors 142 are provided for determining whether to bypass the cold air by the temperature adjusting means 140. The evaporator 120 is installed slightly inclined in the horizontal direction, and the heater core 130 is installed slightly inclined in the vertical direction on the downstream side of the evaporator.

In the conventional vehicle air conditioner, all the doors 142 are opened during cooling to allow the cool air passing through the evaporator 120 to be discharged to the room, and when the doors are heated, the doors 142 are all closed to allow the evaporator 120 to be discharged. The air passing through the heater is heated again while passing through the heater core 130 to discharge the warm air. If only part of the door 142 is opened, some of the air passing through the evaporator 120 flows to the part of the door 142 opened, and the rest is heated while flowing through the heater core 130. do. Therefore, in the predetermined space provided in the case 100, warm air passing through the heater core 130 and cold air bypassed without passing through the heater core 130 are mixed to become mixed air, and then the duct 150 It is discharged to the room through). Of course, when the above space is not secured enough, the hot air and cold air are discharged in a state where they are not sufficiently mixed, causing user dissatisfaction, and temperature control becomes difficult.

3 is a vehicle air conditioner disclosed in Japanese Patent Laid-Open No. 2004-249946, and a blower is mounted upstream of an evaporator 120 installed inside the case 100, and a heater core 130 is provided downstream of the evaporator 120. It is installed, and has a structure in which the mixing chamber 170 is provided in front of the discharge duct 150. In addition, the temperature control means 140 is provided with a mix damper 143, the mix damper 143 is a cold air passage between the evaporator 120 and the mixing chamber 170 or the heater core 130 and the mixing chamber 170 Selective opening and closing of the warm air passage between the).

According to the conventional air conditioner for a vehicle, the mix damper is rotated according to a user's operation to allow cooling or heating to be performed, as well as to mix cold air with warm air to discharge air of an appropriate temperature.

During cooling, the mix damper 143 closes the hot air passage and develops the cold air passage so that the cold air passing through the evaporator 120 flows directly into the mix chamber 170. Cold air blown into the mix chamber 170 is discharged into the room through various ducts 150 to cool.

During heating, the mix damper 143 closes the cold air passage and develops the hot air passage, and the air passing through the evaporator 120 is heated while passing through the heater core 130 again. Therefore, the warm air blown into the mix chamber 170 through the warm air passage opened by the mix damper 143 is discharged into the room through the duct 150 to be heated.

When the cold and warm air is mixed to discharge the air at an appropriate temperature, the mix damper 143 partially opens the hot air passage and the cold air passage so that some of the cold air passing through the evaporator 120 passes through the cold air passage. Moved to 170, and the rest is heated while passing through the heater core 130 and then moved to the mix chamber 170 through the hot air passage. Therefore, the inside of the mixing chamber 170 is a mixture of cold air and warm air is made, the mixed air formed in this way is discharged into the room through the duct 150. At this time, by adjusting the rotation angle of the mix damper 143, it is possible to adjust the amount of air passing through the heater core 130, it is possible to adjust the temperature of the mixed air according to the user's needs.

However, the above-described conventional air conditioners have almost the same flow path direction of the cold air passing through the evaporator and the hot air passing through the heater core, so that a sufficient flow path distance is required to completely mix the cold air and the hot air. Since it requires a specific space where cold air and hot air are mixed, the overall size of the device is increased, which makes it difficult to install in a narrow space.

The present invention has been made to solve the above-described problems, even if the installation space is narrow, even if the evaporator and the heater core is installed in close proximity to set the proper position so that the mixing of cold air and warm air more smoothly An object of the present invention is to provide a vehicle air conditioner.

In addition, by allowing cold air and hot air to be mixed in a temporal door that opens or closes a cold air flow passage or a hot air flow passage, another object of the present invention is to provide a vehicle air conditioner that does not require a long flow path or a specific mixing space for air mixing. have.

According to the vehicular air conditioner of the present invention for achieving the above object, a blower for blowing air, an evaporator for cooling the air from the blower, a heater core for heating the air from the blower, and the evaporator It includes a temporal door for controlling the temperature of the air discharged to the room by adjusting the amount of cold air passing through and the amount of warm air passing through the heater core; The evaporator is disposed perpendicularly to the air discharge direction of the blower, the heater core is disposed in a horizontal direction with respect to the air discharge direction of the blower, the temp door is disposed downstream of the flow path of the evaporator and the heater core to warm air It is characterized in that the opening and closing of the flow path or the cold wind flow path and mixing cold air and hot air.

In addition, according to the vehicular air conditioner of the present invention, the tempor is installed in each of the door shaft and the door shaft rotated by the actuator, the width is formed to be wider toward the end from the door shaft to be perpendicular to the door shaft And an air mixing guide plate attached to an end portion of the side plate to block the cold air flow path or the hot air flow path, and to be concave inward to mix the cold air and the warm air.

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In addition, according to the vehicle air conditioner of the present invention, the temp door may further include a baffle installed on the concave surface of the air mixing guide plate to adjust the amount of air passing through the heater core.

The above features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are based on the principle that the inventor can appropriately define the concept of the term in order to explain the invention in the best way. It should be interpreted as meanings and concepts corresponding to

FIG. 4 is a schematic view showing a vehicle air conditioner according to the present invention, and FIG. 5 is a perspective view showing a temper which is a main component of the present invention. 6 to 8 are diagrams illustrating air flows during cooling, heating, and air mixing.

In the vehicle air conditioner according to the present invention, an air blower (25) for blowing air and an evaporator (21) arranged to be perpendicular to the air discharge direction of the blower (25) while cooling the air from the blower (25). And a heater core 22 which heats the air from the blower 25 and is disposed in a horizontal direction with respect to the air discharge direction of the blower 25, and a rear of the flow path of the evaporator 21 and the heater core 22. The temporal door 10 which opens and closes the hot air flow passage 35 or the cold air flow passage 30 and mixes cold air and hot air, and a side closer to the evaporator 21 of the lower end of the heater core 22. Heater core accommodating part 23 supporting the heater core 22 so as to be located higher than the far side from the evaporator 21, one end is connected to the heater core accommodating part 23, and the other end is cold air together with the case 20 The warm air guide 24 which forms the flow path 30 is included.

The temporal door 10 is installed at both ends of the door shaft 11 and the door shaft 11 rotated by an actuator (not shown) and is formed to be wider from the door shaft 11 toward the end. It is attached to the side plate 14 and the end portion of the side plate 14 which is positioned perpendicular to the door shaft 11 to block the cold air flow passage 30 or the hot air flow passage 35 and to reference the door shaft 11 The air mixing guide plate 13 is formed to be concave inward to mix the cold and warm air, and the air flowing in the heater core 22 in the concave surface of the air mixing guide plate 13. It consists of a baffle 15 for adjusting the amount.

Since the air conditioner can show high mixing even in a narrow space, the air conditioner can be installed in a narrow space, which is suitable for a rear seat air conditioner for cooling and heating the rear seat.

The vehicle air conditioner according to the present invention configured as described above may adjust the temperature of the discharged air discharged through the vent part by selectively opening or closing the cold air flow passage or the hot air flow passage by partially rotating the temper door according to the air conditioning type. do.

During cooling, the temp door 10 closes the hot air flow passage 35 and completely opens the cold air flow passage 30 as shown in FIG. 6. Therefore, after the air discharged from the blower 25 is cooled while passing through the evaporator 21, it passes through the hole 12 of the cold air flow path 35 and the temp door 10, and through the vent portion 26 It is discharged to the interior of the car to achieve cooling.

During heating, the temp door 10 completely opens the hot air flow passage 35 and closes the cold air flow passage 30 as shown in FIG. 7. Therefore, after the air discharged from the blower 25 passes through the evaporator 21, it is heated while passing through the heater core 22 installed slightly higher than the evaporator 21 in the heater core accommodating portion 23, and warm air The gas is discharged to the interior of the vehicle through the vent part 26 to perform heating.

During air mixing, as shown in FIG. 8, the temp door 10 opens only a part of the hot air flow passage 35 and the cold air flow passage 30. Therefore, some of the air cooled while passing through the evaporator 21 is passed through the cold air flow passage 30, and then bypassed without passing through the temp door 10, and another portion flows toward the heater core 22 and the heater core ( 22 is heated while passing through 22 and is discharged through the hot air flow passage (35).

Of course, most of the cold air exited through the cold wind flow path 30 is strong to go straight to the temp door 10 flows. Some of the cold air introduced into the temp door 10 passes through the hole 12 formed in the temp door 10, and then is guided by the air mixing guide plate 13 of the temp door 10 to provide a warm air flow passage 35. And mixed vertically with the warm air exiting), and the rest is mixed with the warm air flowing into the air mixing guide plate 13 and passing through the heater core 22.

That is, a portion of the warm air that flows into the inside of the air mixing guide plate 13 in which cold air is concave through the space between the hot air guide 24 and the baffle 15 is also passed through the heater core 22. It flows into the inside of the air mixing guide plate 13. Therefore, cold air and warm air are mixed inside the air mixing guide plate 13, and vortices are formed and rapidly mixed by the influence of the concavely formed air mixing guide plate 13.

In addition, the baffle 15 installed in the air mixing guide plate 13 is to supply only the required flow rate in each operation mode when the cold air passing through the evaporator 21 flows to the heater core 22 side, the temp door Even if 10 is rotated at the same angle, since the flow rate is changed depending on the installation position of the baffle 15, the temperature of the mixed air may vary according to the installation position of the baffle 15. Of course, it is obvious that the temperature of the mixed air varies depending on the rotation angle of the temporal door 10.

As described above, the cold air introduced into the temporal door 10 is mixed with the hot air at two places, and the mixed air is mixed again with the cold air bypassing the temporal door 10. As a result, during air mixing, the cold air passing through the evaporator 21 and the warm air passing through the heater core 22 are mixed at three places, thereby improving mixing properties.

 The mixed air is discharged to the room through the duct part 26, and the discharge direction is determined by the mode control door 27 in the duct part 26 and discharged to the upper body or the foot of the user.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Changes will be possible.

As described above, according to the vehicular air conditioner of the present invention, cold air and warm air that have bypassed the temp door 10 are mixed again after cold air and warm air are mixed by the temp door 10 during air mixing. Since it is mixed, there is an effect of improving the mixing of cold and warm air.

In addition, according to the vehicle air conditioner of the present invention, since the mixing properties of the cold air and hot air is improved due to the temp door 10, it does not require a separate space for mixing cold air and warm air, rear seat air conditioning Even if the installation space is small, such as a device, there is another effect that can be sufficiently installed.

Claims (4)

An air blower 25 for blowing air, an evaporator 21 for cooling the air from the blower 25, a heater core 22 for heating the air from the blower 25, and the evaporator 21. In the vehicle air conditioner comprising a temporal door 10 for controlling the temperature of the air discharged to the room by adjusting the amount of cold air passing through and the amount of warm air passing through the heater core 22, The evaporator 21 is disposed perpendicular to the air discharge direction of the blower 25, the heater core 22 is disposed in a horizontal direction with respect to the air discharge direction of the blower 25, and the temporal door ( 10 is disposed downstream of the flow path of the evaporator 21 and the heater core 22 to open and close the hot air flow passage 35 or the cold air flow passage 30 to mix cold and hot air, The temporal door 10 is installed at both ends of the door shaft 11 and the door shaft 11 which are rotated by an actuator, and is formed to be wider in width from the door shaft 11 toward the end thereof. Attached to the side plate 14 and the end portion of the side plate 14 which is positioned perpendicular to the (11) to block the cold air flow path 30 or the hot air flow path 35 and to the reference to the door shaft 11 When the air mixing guide plate 13 is formed to be concave inward to mix the cold and warm air and the concave surface of the air mixing guide plate 13, the amount of air flowing in the heater core 22 direction Vehicle air conditioner comprising a baffle to adjust (15). The method of claim 1, The air conditioner is a vehicle air conditioner, characterized in that the rear seat air conditioner for cooling and heating of the rear seat. delete delete

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