KR100621458B1 - Triple zone air conditioner for vehicles - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a triple zone air conditioner for an automobile, and in particular, an object of the present invention is to independently control temperature of a rear seat.

An air conditioner 1 of the air conditioner according to the present invention is provided with an evaporator 3 and a heater core 4. Defrost vents 11 and face vents 12 are installed at the upper outlet end of the internal flow path of the air conditioning case 1, and a central floor vent 13 is installed at the lower outlet end. The inner flow path of the rear side of the heater core 4 is divided into the rear discharge path 17 which is opened and closed by the guide wall 15 to the front discharge path 16 and the first floor door 131. The front of the heater core is provided with a temperature control door 41 for selectively opening and closing the blower passage on the heater core side and the blower passage on the outlet end side of the front discharge passage. The rear discharge path is divided into a central discharge path 171, a left discharge path 172, and a right discharge path 173, and a central floor vent is installed at an outlet end of the central discharge path. A left floor vent 135 and a right floor vent 136 are provided at each exit end of the left discharge path and the right discharge path, and the second floor door 132 opens and closes the central discharge path at a predetermined position of the central discharge path. Is installed.

Air Conditioning, Air Conditioning, Air Conditioning, Air Conditioning

Description

Triple zone air conditioner for automobiles {TRIPLE ZONE AIR CONDITIONER FOR VEHICLES}

1 is a rear view partially illustrating the interior of an air conditioner according to the present invention.

2 is a cross-sectional view showing a state in which an air conditioner according to the present invention is installed in a vehicle.

3 is a cross-sectional view showing an example of a conventional air conditioner.

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

1: air conditioning case, 3: evaporator,

4: heater core, 11: defrost vent,

12: face vent, 13: center floor vent,

15: guide wall, 16: forward discharge path,

17: rear discharge path, 41: temperature control door,

111: defrost door, 121: face door,

131: first floor door, 132: second floor door,

135: left floor vent, 136: right floor vent,

171: center discharge furnace, 172: left discharge furnace,

173: right discharge path

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a triple zone air conditioner for automobiles. In particular, in a semi-center type or center type air conditioner, a floor vent for discharging air to the floor side of a vehicle interior is divided into triple zones. The present invention relates to a triple zone air conditioner for automobiles which can independently perform temperature control of the rear seat by forming and opening and closing the center area for rear seat air discharge.

In general, an air conditioner for automobiles receives refrigerant compressed by a compressor driven by a power of an engine (not shown) into a condenser, heat exchanges by condensed air of a cooling fan, and condenses it, followed by a receiver dryer, an expansion valve, and an evaporator. A device for cooling the interior of the vehicle by inflowing the air blown by the blower fan of the blower unit through the evaporator in order to be introduced into the room in a cold state in the process of flowing back into the compressor in turn; The cooling device of the engine is a device including a heating device for heating the interior of the car by the air flows by the blower fan in the process of returning to the engine through the heater core is introduced into the room in a state of heat exchange with the cooling water passing through the heater core. .

Next, a conventional air conditioner will be described as an example.

As shown in FIG. 3, the evaporator 91 and the heater core 92 are installed in the internal flow path of the air conditioning case 9, and the front (air inflow side) air conditioning case 9 of the evaporator 91. A blower case 93 is installed at the inlet end of the blower case 93, and a blower fan 94 driven by the motor 95 is installed in the blower case 93. An indoor unit suction port 931 and an outdoor unit suction port 932 are provided at an upper portion of the blower case 93, and the suction ports 931 and 932 are opened and closed to be adjusted in accordance with the turning of the switching door 933. Accordingly, air is introduced into the blower case 93 through the indoor unit suction port 931 or the outdoor unit suction port 932 by the suction force generated by the rotation of the blower fan 94 driven by the motor 95. By blowing through the internal flow path of the case 9, the air may be heat-exchanged while passing through the evaporator and / or the heater core to change into cold or warm air. In addition, the outlet end of the air conditioning case 9 behind the heater core 92 discharges cold or warm air toward the car window, thereby defrost vent 96, cold or warm air for removing the defrost of the car window. A face vent 97 for cooling and cooling the room by discharging to the upper half of the vehicle interior, and a floor vent 98 for cooling and cooling the room by discharging cold or warm air to the lower half of the vehicle interior are sequentially installed. In addition, the vents 96, 97 and 98 are controlled to be opened and closed in accordance with a predetermined heating and cooling mode by the doors 961, 971 and 981, respectively. Then, the heater core 92 is installed so as to occupy the lower half of the cross-sectional area of the internal flow path of the air conditioning case 9, and in front of the heater core 92 (that is, between the heater core 92 and the evaporator 91). The air conditioning passage 921 for controlling the opening of the air passage of the heater core 92 side and the inner flow path of the air conditioning case 9 above the heater core 92 is provided. Therefore, when the temperature control door 921 is blocking the air passage of the heater core 92 side, the internal flow path of the upper air conditioning case 9 of the heater core 92 is opened and thus passes through the evaporator 91. Air is discharged to the vehicle interior through the open vents of the vents 96, 97, and 98 without passing through the heater core 92, thereby cooling the vehicle interior. In addition, when the temperature control door 921 is blocking the inner flow path side of the air conditioner case 9 on the upper side of the heater core 92, the ventilation passage on the heater core 92 side is opened so that it passes through the evaporator 91. Air may be discharged to the interior of the vehicle through vents opened through the heater core 92 so that heating of the interior of the vehicle may be performed.

However, in such an air conditioner, since the floor vent 98 is opened and closed by the dual zone control method of the left and right independent control structure, the temperature of the rear seat cannot be controlled independently, thus effectively heating and cooling the rear seat of the car. There is a problem that cannot be done.

The present invention has been made to solve the above-mentioned conventional problems, and the floor vent for discharging air to the floor side of the vehicle interior is partitioned into a triple zone, and the center area is for rear seat air discharge so that the rear seat can be opened and closed separately. An object of the present invention is to provide a triple zone air conditioner for a vehicle that can independently perform temperature control.

In order to achieve the above object, in the automotive triple zone air conditioner according to the present invention, an evaporator and a heater core are installed before and after the internal passage of the air conditioning case, and are opened and closed by a defrost door at the upper outlet end of the internal passage. At least one pair of defrost vents and at least one pair of face vents which are opened and closed by a face door are sequentially installed, and a central floor vent is installed at the lower outlet end of the internal flow path of the air conditioning case, and is located behind the heater core of the air conditioning case. The internal flow path guides the blower air to the defrost vents and the face vents by the guide wall, and introduces the air flowing into the forward discharge path to the floor vent by introducing a reverse U-turn. It is divided into a rear discharge path which is opened and closed by one floor door. In a triple zone air conditioner for automobiles provided with a temperature control door for selectively opening and closing an air blowing passage and an air outlet passage of an outflow passage, the rear discharge passage is divided into a central discharge passage, a left discharge passage, and a right discharge passage. In addition, the central floor vent is installed at the outlet end of the central discharge passage; A left floor vent and a right floor vent are installed at each outlet end of the left discharge path and the right discharge path; And a second floor door configured to open and close the central discharge path at a predetermined position of the central discharge path.

According to the triple zone air conditioner for automobiles according to the present invention configured as described above, when the floor door is operated to close the rear discharge path, the discharge of air through the floor vents can be blocked. In addition, when the floor door is operated to open the rear discharge path, air may be discharged into the vehicle interior through the floor vents. Among the floor vents, the center floor vent is preferably connected to a duct extending to the rear seat. Therefore, when the second floor door is operated to open the center floor vent while the rear discharge path is opened, air flows to the rear seat. In addition to being able to be discharged, when the second floor vent is operated to close the center floor vent, air discharge to the rear seat may be blocked.

Other features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments based on the accompanying drawings.

1 and 2, reference numeral 1 denotes an air conditioning case, and an evaporator 3 is installed at an inlet end for introducing air blown from a blower unit (not shown) in an internal flow passage thereof. The heater core 4 is provided in the substantially lower half of the rear side of the evaporator 3 in the internal flow path at a predetermined interval from the evaporator 3. And the partition 14 is provided in the upper part of the evaporator 3 and the upper part of the heater core 4, The blower hole 141 is formed in this partition 14, and the air blown from a blower unit is The blower 141 may pass through the evaporator 3 or may pass through the heater core 4. In order to selectively control the flow of air as well as to control the temperature of the blowing air, the blowing hole 141 is to be opened and closed by the temperature control door 41. Specifically, the end of the heater core 4 side of the temperature control door 41 is pivotally hinged to the partition 14 so that the blow hole 141 or the blower passage toward the heater core 4 may be selectively opened and closed. Can be. Therefore, when the temperature control door 41 turns to block the heater core 4 side, the air passing through the evaporator 3 flows only toward the air blowing hole 141, and the temperature control door 41 blows the air hole ( When turning to block 141, air passing through the evaporator 3 passes through the heater core 4, and when the temperature control door 41 is in the neutral position, some of the air passing through the evaporator 3 The blower 141 passes through the remaining air and passes through the heater core 4.

Then, the internal flow path of the air conditioner case (1) so that the air passing through the air blower 141 or the air blower passage toward the heater core 4 through the evaporator 3 can be discharged to the window side of the vehicle interior and the upper half of the vehicle interior. At least one pair of defrost vents 11 and 11 which are opened and closed by the defrost door 111 and at least one pair which are opened and closed by the face door 121 at the upper outlet end of the two-sided pairs are illustrated. ) Face vents (12, 12) are provided in sequence, and the center floor vent (13) is provided at the lower outlet end of the internal flow path of the air conditioning case (1).

In addition, a blowhole 141 formed in the air or the partition wall 14 passing through the heater core 4 by the guide wall 15 in the rear inner flow path of the heater core 4 in the inner flow path of the air conditioning case 1. The front discharge path 16 for guiding the air having passed through the side toward the defrost vents 11 or the face vents 12 and the reverse U-turn are introduced from the front discharge path 16 to the center floor vent 13. The rear discharge path 17 for guiding toward) is defined. The inlet of the rear discharge path 17 is opened and closed by the first floor door 131.

According to the present invention, in order to effectively perform the temperature control of the floor 5 (see FIG. 1) side of the interior of the vehicle and to independently perform the temperature control of the rear seat, the rear discharge path 17 has a center. The discharge path 171, the left discharge path 172, and the right discharge path 173 are partitioned. In addition, the central discharge path 171 is opened and closed by the second floor door 132 and the central floor vent 13 is, for example, the central discharge path 171 for independent control for the rear magnet. The left floor vent 135 and the right floor vent 137 are disposed at the outlet ends of the left discharge passage 172 and the right discharge passage 173.

Next, the operation of the triple zone air conditioner for automobiles according to the present invention configured as described above will be described.

In the present invention, the center floor vent 13 of the floor vents is connected to a connection duct (not shown) extending to the rear seat side floor 5, for example, so that independent control of the rear seat is achieved and the left floor vent 135 is formed. ) And the right floor vent 136 may be connected to a connection duct (not shown) extending to the front seat side floor (5).

In the cooling mode in this state, when the inside or outside air is blown by a blower unit (not shown) installed at the inlet end of the air conditioning case 1, the blowing air is exchanged to the cold by passing through the evaporator 3 , The temperature control door 41 is to close the air blow passage to the heater core (4). Therefore, the cool air is discharged to the front discharge path 16 through the blow hole 141 formed in the partition 14 without passing through the blow passage toward the heater core 4 to defrost vents 11 and the face vents 12. For example, cooling of the vehicle interior may be performed by being discharged to the vehicle interior through open vents among the floor vents. When the first floor door 131 closes the rear discharge path 17 in the cooling process, cold air is not discharged to the interior of the vehicle through the floor vents. In addition, for example, when a passenger is in the rear seat, the rear discharge path 17 is opened and the central floor vent 13 is also opened by the second floor door 132, so that not only the front seat 5 side but also the rear seat floor. If the cold air is also blown to (5) and no passengers are seated in the rear seat, the rear discharge path 17 is opened and the central floor vent 13 is closed by the second floor door 132 so that the rear seat floor 5 The cold air may be discharged only to the front seat floor 5 without cooling the cold air toward the) side.

On the other hand, in the heating mode, the blowing hole 141 formed in the partition wall 14 by the temperature control door 41 is closed while the blowing passage toward the heater core 4 is opened. Therefore, when the inside or outside air is blown by the blower unit installed at the inlet end of the air conditioning case 1, the blowing air passes through the evaporator 3 and then passes through the blowing passage toward the heater core 4 so as to be heat-exchanged to warm. The vehicle interior may be heated by blowing air into the vehicle interior through the vents opened along the front discharge path 16. Since the air blowing path and the control structure of the respective vents are as described above, the description thereof will be omitted.

In the triple zone air conditioner for automobiles according to the present invention configured as described above, the paths through which air is discharged to the floor 5 of the vehicle interior are divided into three places, and any one of them is particularly used for the rear seat. By opening and closing independently, it is possible to effectively control the heating and cooling of the rear seat, thereby improving the cooling and heating efficiency and saving fuel.

Claims (1)

An evaporator 3 and a heater core 4 are installed in the internal passage of the air conditioning case 1 before and after, and at least one pair of defrost vents opened and closed by the defrost door 111 at the upper outlet end of the internal passage ( 11 and 11 and at least one pair of face vents 12 and 12 which are opened and closed by the face door 121 are sequentially installed, and a central floor vent 13 is installed at the lower outlet end of the inner flow passage, and the air conditioning The internal flow path behind the heater core 4 of the case is reversed by the guide wall 15 to the front discharge passage 16 for guiding the blowing air toward the defrost vents and the face vents, and the air flowing into the front discharge passage. U-turn is introduced and guided to the floor vent, and the inlet is partitioned into a rear discharge path 17 which is opened and closed by the first floor door 131, and the front of the heater core is an exit to the heater core blower passage and the front discharge path. Line one side ventilation passage In the triple zone car air conditioner for the temperature control door 41 for opening and closing the ever installed, The rear discharge path is divided into a central discharge path 171, a left discharge path 172, and a right discharge path 173, and the central floor vent 13 is installed at an outlet end of the central discharge path 171. ; A left floor vent 135 and a right floor vent 136 are provided at each exit end of the left discharge path 172 and the right discharge path 173; Triple floor air conditioner for a vehicle, characterized in that the second floor door (132) for opening and closing the central discharge path in a predetermined position of the central discharge path (171).

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