KR20040078708A - Air climate unit for vehicle - Google Patents

Abstract

PURPOSE: An air conditioning unit for a vehicle is provided to maintain a rear seat of the vehicle in a delightful temperature state by connecting a front unit and a rear console unit by a rear console duct and directly guiding some of air of the front unit to the rear seat. CONSTITUTION: An air conditioning unit(30) for a vehicle comprises a front unit(31), a rear console unit(310), and a rear console door(319). In the front unit, a blower(33), an evaporator(34), a heater core(37) are arranged in a front case. The front unit supplies air exchanged with heat to each area of the room of the vehicle through a floor outlet(41), a defrost outlet(42) and a vent outlet(43). The rear console unit is connected to the front unit by a rear console duct. In the rear console unit, an auxiliary evaporator(312) and an auxiliary heater core(314) are installed in a rear case(311) and the rear console unit blows air exchanged with heat to a rear seat of the vehicle. The rear console door is installed between the front unit and the rear console duct. The rear console door selectively opens and shuts an inlet to supply some the air of the front unit to the rear console duct.

Description

Air climate unit for vehicle

The present invention relates to a vehicle air conditioning unit, and more particularly, to a vehicle air conditioning unit having an improved structure to connect a front unit and a rear console unit to a duct, and guide a part of the air of the front unit to the rear console unit. .

The automotive air conditioning unit includes a cooling system for cooling the interior of a vehicle, and a heating system for heating the interior of the vehicle. The cooling system is configured to cool the interior of the vehicle by heat exchange between the evaporator and the outdoor air in the process of circulating the heat exchange medium discharged by driving the compressor back to the compressor through the condenser, the receiver dryer, the expansion valve, and the evaporator. On the other hand, the heating system is configured to heat the interior of the vehicle by introducing the coolant into the heater core and exchanging heat with the outdoor air.

Recently, in the case of a passenger car or a van in which the interior of the car is relatively large, in order to improve the problem that the heat exchanged air is not sufficiently delivered to the rear seat, by supplying the heat exchanged air to the rear seat in various ways, the comfort of the automobile interior is improved. have.

FIG. 1 shows the vehicle air conditioner 10 disclosed in Japanese Patent Laid-Open No. 00-142074, and FIG. 2 shows the heater unit of FIG. 1 laterally.

1 and 2, the air conditioning apparatus 10 is connected to the air conditioning unit 11 for performing air conditioning on the front seat side of the vehicle, and is connected to the air conditioning unit 11, and blows cold air to the upper body of the rear seat occupant. And a rear vent duct 12 for the purpose.

The air conditioning unit 11 includes a duct 13 for blowing air flow into a vehicle interior, a blower 14 for generating an air flow toward the vehicle cabin using the duct 13, and a downstream of the blower 14. And an evaporator 15 arranged in the lower portion of the duct 13 and a temperature regulating means 16 for varying the ratio between cold air and warm air and adjusting the blowing temperature.

The temperature regulating means 16 is disposed downstream of the evaporator 15, and includes a heater core 17 for heating the air that has passed, a bypass passage 18 for bypassing the heater core 17, and the heater. The air mix door 19 which adjusts the ratio of the warm air which passed the core 17 and the cold air which passed the bypass passage 18 is provided.

In addition, the air conditioning unit 11 bypasses the temperature regulating means 16 to the cold air cooled by the evaporator 15, and between the face outlet 110 and the air inlet 130 of the rear vent duct 12. The cold air bypass passage 140 guided to is formed.

The air inlet 130 of the rear vent duct 12 is provided by opening in the side surface of the duct 13 below the cold air bypass passage 140, and the cold air bypass flowed out from the cold air bypass passage 140. Wind (C) is easy to flow in. The rear vent door 150 is provided at the air inlet 130.

In the air conditioner 10 having the above configuration, the warm air H heated by the heater core 17 is directed toward the foot outlet 120. In this state, when the rear vent door 150 is opened, the warm air H supplied to the foot outlet 120 is blocked by the rear vent door 150, which makes it difficult to flow into the air inlet 130. The upper side of the rear vent door 150 is opened to facilitate the introduction of the cold wind bypass wind C into the air inlet 130 from the cold wind bypass passage 140.

By the way, the conventional air conditioner 10 has the following problems.

First, the air conditioning unit 11 is arranged in such a state that the evaporator 150 and the heater core 170 overlap each other back and forth in the duct 13, so that the air passing through the evaporator 150 again becomes the heater core. When passing or bypassing 170, the flow of air is undesirably insufficient, and the amount of air blown into the rear seat is insufficient.

Second, since a separate air conditioning unit is not installed in the rear vent duct 12, temperature control of air blown into the rear seat is not properly performed.

The present invention is to solve the above problems, by connecting the front unit and the rear console unit to the rear console duct to direct a part of the air of the front unit to the rear seat structure to maintain a comfortable temperature even in the rear seat of the car The object is to provide an improved automotive air conditioning unit.

1 is a schematic view showing a conventional air conditioning unit for a vehicle,

2 is a schematic view of the heater unit of FIG. 1 observed from the side;

3 is a schematic view showing a vent-cool mode state as a maximum cooling state of an air conditioning unit according to an embodiment of the present invention;

FIG. 4 is a schematic diagram showing a floor-worm mode as a maximum heating state of the air conditioning unit of FIG.

FIG. 5 is a schematic view showing a defrost-worm mode state as a heating state of the air conditioning unit of FIG.

FIG. 6 is a schematic diagram illustrating a bi-level mode state as a mixed state of the air conditioning unit of FIG. 3. FIG.

FIG. 7 is a schematic view showing a mixed-warm mode state as a heating state of the air conditioning unit of FIG. 3. FIG.

<Brief description of symbols for the main parts of the drawings>

30 ... Air conditioning unit 31 ... Front unit

32.Front Case 33 ... Blower

34 ... Evaporator 37 ... Heater Core

38 ... Bypass door 41 ... Floor exit

42 ... Defrost Exit 43 ... Vent Exit

310 Rear console unit 311 Rear case

312 Auxiliary Evaporator 314 Auxiliary Heater Core

Rear vent grille 317 Rear console duct

319 rear console door

In order to achieve the above object, an air conditioning unit for an automobile according to an aspect of the present invention is provided.

A blower, an evaporator, and a heater core disposed in the front case, and a front unit for supplying heat-exchanged air to each area of the vehicle interior through the floor outlet, the defrost outlet, and the vent outlet;

A rear console unit communicating with the front unit by a rear console duct and having an auxiliary evaporator and an auxiliary heater core installed in the rear case to blow air exchanged to the rear seat of the vehicle; And

And a rear console door installed between the front unit and the rear console duct, the rear console door selectively opening and closing the inlet of the front unit so that a part of the air of the front unit can be supplied to the rear console duct.

The heater core may be located downstream of the front case with respect to the evaporator, and the rear console door may be disposed between the heater core and the evaporator so that the heater core and the evaporator do not overlap in the longitudinal direction. .

In addition, a bypass passage communicating with a cold air passage formed downstream of the evaporator is formed at the inlet of the heater core, and the bypass passage is provided with a bypass door that rotates to selectively open and close the inlet of the heater core. It is done.

Further, the auxiliary heater core installed in the rear console unit is configured to be opened and closed by a pair of auxiliary doors.

Further, the rear console door is characterized in that it is installed to selectively open and close the opening of the portion coupled to the front case and the rear console duct.

Referring to the accompanying drawings, the air conditioning unit for a vehicle according to a preferred embodiment of the present invention will be described in detail as follows.

3 shows an air conditioning unit 30 according to an embodiment of the present invention.

Referring to the drawings, the air conditioning unit 30 includes a front unit 31 and a rear console unit 310 in communication therewith.

The front unit 31 has a front case 32. A blower 33 is installed in the front case 32, and an evaporator 34 is provided downstream of the blower 33. At the rear of the evaporator 34 is formed a cold air passage 35 through which air blown from the blower 33 flows in a low temperature state through the evaporator 34 and flows.

A bypass passage 36 is formed on the downstream side of the cold air passage 35 so that the bypass passage 36 is formed in the vertical direction of the front case 32.

One side of the bypass passage 36 is provided with a heater core 37. Between the bypass passage 36 and the heater core 37, the air blown from the blower 33 exchanges cold air heat-exchanged through the evaporator 34 or air in the cabin not heat-exchanged in the evaporator 34. The bypass door 38 which guides or cuts off the heater core 37 is rotatably provided.

At the outlet of the heater core 37 is formed a hot air passage 39 through which air blown from the blower 32 flows in a high temperature state through the heater core 37 to flow.

On the bypass passage 36 and the downstream side of the hot air passage 39, cold air or hot air heat exchanged through the evaporator 34 or the heater core 37 is mixed, or cold air passed through the evaporator 34 alone. Independently flowing mixing passages 40 are formed.

On the mixing passage 40, a floor outlet 41, a defrost outlet 42, and a vent outlet 43 are formed to allow air to be supplied to each area of the vehicle interior through the mixing passage 40. And the vent outlets 41 to 43 are provided with a floor door 44, a defrost door 45 and a vent door 46 for selectively opening and closing the outlets 41 to 43 according to the respective blowing modes.

On the other hand, the rear console unit 310 is composed of a rear console duct 318 and a rear case 311. An auxiliary evaporator 312 is installed in the rear case 311 in the vertical direction, and an auxiliary cold air passage 313 through which air flows is formed at the rear of the auxiliary evaporator 312. Auxiliary heater core 314 is provided in the horizontal direction in the substantially center of ().

On the downstream side of the auxiliary heater core 314 is formed an auxiliary hot air passage 315 through which the air heat-exchanged in a high temperature state flows through the auxiliary heater core 314, the upper and lower portions of the auxiliary heater core 314 A pair of auxiliary doors 316 for selectively opening and closing the entrance and exit of the auxiliary heater core 314 are respectively provided.

The rear vent grille 317 is installed at the rear of the auxiliary hot air passage 315 so that the air exchanged at low or high temperature through the auxiliary evaporator 312 and the auxiliary heater core 314 is discharged to the rear seat of the vehicle. .

On the other hand, as described above, the rear console door 319 is provided on the extension line of the cold air passage 35 of the front unit 31, the rear console door 319 is the front case 32 and the rear console duct ( 318 is provided to selectively open and close the passage.

The operation according to each mode of the air conditioning unit 30 according to the present invention having the structure as described above is as follows.

FIG. 3 illustrates a vent-cool mode state as a maximum cooling state of the air conditioning unit 30.

Referring to the drawings, the front case 32 has a floor outlet 41 closed by the floor door 44, the defrost outlet 42 is closed by the defrost door 45, and the vent outlet 43 is opened by the vent door 46.

The air blown from the blower 33 is exchanged to a low temperature state through the evaporator 34 to flow through the cold air passage 35 and the bypass passage 36, and is installed on one side of the bypass passage 36. The bypass door 38 closes the inlet of the heater core 37.

Accordingly, the cold air passing through the cold air passage 35 is supplied to the vehicle interior through the vent outlet 43 through which the inlet is opened via the bypass passage 36 and the mixing passage 40.

In addition, when a passenger rides in the rear seat of the car, the rear seat passenger presses a separate air conditioner switch. Accordingly, the rear console door 319 installed on the cold air passage 35 rotates in the direction of opening the inlet of the rear console duct 318, thereby cooling the cold air from the front case 32 to the rear console duct 318. ) To supply to the rear console unit (310).

The air flowed toward the rear console unit 310 passes through the auxiliary evaporator 313 and once again heat exchanges to a low temperature to flow along the auxiliary cold wind passage 313, wherein the auxiliary heater core 314 is a pair. It is closed by the auxiliary door 316 of the cold air passing through the auxiliary cold air passage 313 bypasses the auxiliary heater core 314 and is discharged to the rear seat of the vehicle interior through the rear vent grille 317.

As described above, the air conditioning unit 30 supplies a low temperature air to the front seat of the vehicle through the front unit 31 by using one blower 33, and is connected to the cold wind passage 35 at the rear console. Through the unit 310, it is possible to increase the air supply amount to the rear seat of the vehicle and to supply it.

Here, of course, by driving only the auxiliary evaporator 312 of the rear console unit 310 without driving the evaporator 34 of the front unit 31, the cold air can be supplied only to the rear seat of the vehicle.

4 illustrates a floor-worm mode state of the air conditioning unit 30.

Referring to the drawings, a floor outlet 41 is opened to the front case 32 by a floor door 44, a defrost outlet 42 is completely closed by a defrost door 45, and a vent The outlet 43 is closed by the vent door 46.

The air blown from the blower 33 flows through the cold air passage 35 through the evaporator 34. At this time, the evaporator 34 is not driven, and thus the air is not heat exchanged to a low temperature state.

The bypass passage 36 formed on the downstream side of the cold air passage 35 has its flow passage closed by the rotation of the bypass door 38. The air flowing to the inlet of the heater core 37 by the closing of the bypass passage 36 is heat-exchanged to a high temperature state passing through the heater core 37.

The hot air heated through the heater core 37 is heated by the floor door 44 through the hot air passage 39 and the mixing passage 40 formed at the outlet of the heater core 37. Through the interior of the car.

In this process, a part of the air of the front unit 31 may be guided and supplied to the rear seat of the vehicle with warm air. In this case, the rear console door 39 installed on the cold air passage 35 of the front unit 31. Rotates toward the opening of the rear console duct 318 in communication with the front case 31 and supplies some air blown from the blower 33 to the rear console unit 310 through the rear console duct 318. Done.

The air supplied to the rear console unit 310 is heated once again while passing through the auxiliary heater core 314 through the auxiliary evaporator 312 and then discharged to the rear seat through the rear vent grill 317.

At this time, the auxiliary evaporator 312 is not driven, and a pair of auxiliary doors 316 installed at upper and lower portions of the auxiliary heater core 314 are linked to induce air flow toward the auxiliary heater core 314.

FIG. 5 illustrates a defrost-worm mode state of the air conditioning unit 30.

Referring to the drawings, the case 32 has a floor outlet 41 closed by the floor door 44, the defrost outlet 42 is fully open by the defrost door 45, and the vent outlet 43 is closed by the vent door 46.

The air blown from the blower 33 flows through the cold air passage 35 through the evaporator 34. The flowed air is introduced into the heater core 37 and heat exchanged to a high temperature state. In this case, the bypass door 38 has a bypass passage 36 similar to the above-described floor-worm mode. Rotate in the direction of closing. Accordingly, the air flowing through the cold wind passage 35 can be smoothly introduced into the heater core 37.

The hot air heated to high temperature through the heater core 37 passes through the hot air passage 39 formed at the outlet, and the defrost outlet 42 opened by the defrost door 45 via the mixing passage 40. It is discharged toward the glass window. Accordingly, it is possible to remove the frost generated in the windshield of the car.

On the other hand, the rear console door 35 installed on the cold air passage 35 is rotated in the direction of closing the inlet to block the air flow of the rear console unit 310.

6 shows a bi-level mode state of the air conditioning unit 30.

Referring to the drawings, a floor outlet 41 is partially opened by the floor door 44 in the front case 32, a defrost outlet 42 is closed by a defrost door 45, and a vent The outlet 43 is partially opened by the vent door 46.

The air blown from the blower 33 is heat-exchanged to a low temperature while passing through the evaporator 34, and the cold air cooled by the low temperature flows through the cold air passage 35, wherein the cold air passage 35 Part of the cold air flows into the heater core 37, and the other part bypasses the heater core 37 and passes through the bypass passage 36. For this air flow, the bypass door 38 is rotated in a direction of opening the bypass passage 36 by about 1/2.

Accordingly, the cold air passing through the evaporator 34 and the warm air passing through the heater core 37 are mixed in the mixing passage 40 through the vent outlet 43 in which the vent door 46 is partially opened. Discharged. In addition, air mixed with cold and warm air is also discharged through the floor outlet 41 opened by the floor door 44.

In this way, the bypass door 38 can control the temperature of air passing through the evaporator 34 by opening only a part of the inlet of the heater core 37.

On the other hand, the rear console door 319 installed on the cold air passage 35 is rotated in the direction of opening the inlet. Accordingly, air introduced into the rear console duct 318 may be introduced into the rear console unit 310.

The air flowing into the rear console unit 310 is lowered through the auxiliary evaporator 312 and a part of the cold air passing through the auxiliary evaporator 312 by a pair of auxiliary doors 316 opened about one half of the time. Is heated while passing through the auxiliary heater core 314, and the rest is bypassed by the auxiliary heater core 314 and mixed with the heating air, and then discharged to the rear seat of the vehicle through the rear vent grille 317.

FIG. 7 illustrates a mix-warm mode of the air conditioning unit 30.

Referring to the drawings, the front case 32 is partially opened by the floor door 44, the defrost outlet 42 is partially opened by the defrost door 45, The vent outlet 43 is closed by a vent door 46.

The air blown from the blower 33 passes through the hot air passage 39 to the maximum limit so that the air blown through the evaporator 35 can be smoothly introduced into the heater core 37. At this time, the bypass door 38 is rotated to block the passage 36 that bypasses the heater core 37.

As a result, all of the air flowing from the cold wind passage 34 is guided to the heater core 37 by the bypass door 38 to be heat-exchanged with the hot air. Subsequently, the interior of the vehicle is heated through the floor outlet 44 with the floor door 41 partially open and the defrost outlet 45 with the defrost door 42 partially open.

Meanwhile, some air that has passed through the rear console duct 319 formed on the cold wind passage 35 becomes warm air while passing through the auxiliary heater core 314 of the rear console unit 310 and through the rear vent grill 317. Discharged to the rear seat.

As described in each of the above mode states, it will be said that various blowing modes can be set by appropriately opening and closing the rear console door 319 provided on the cold air passage 35.

As described above, the automotive air conditioning unit of the present invention can obtain the following effects.

First, by introducing a part of air from the front unit to the rear console unit with a minimum of flow resistance, the air volume of the rear console unit can be greatly increased.

Second, by installing a rear console door for selectively opening and closing the rear console duct connected to the rear console unit on the cold air passage formed on the downstream side of the evaporator, it is possible to selectively control the heat exchange air supply to the rear seat.

Third, since the evaporator and the heater core do not overlap in the air flow direction, the airflow resistance can be minimized, thereby increasing the air volume to the rear console unit.

Fourth, by using a single blower to blow air to the front unit and the rear console unit connected to it, it is possible to configure a vehicle air conditioning unit with a simple structure and high space efficiency.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary and will be understood by those of ordinary skill in the art that various modifications and variations can be made therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (5)

A blower, an evaporator, and a heater core disposed in the front case, and a front unit for supplying heat-exchanged air to each area of the vehicle interior through the floor outlet, the defrost outlet, and the vent outlet; A rear console unit communicating with the front unit by a rear console duct and having an auxiliary evaporator and an auxiliary heater core installed in the rear case to blow air exchanged to the rear seat of the vehicle; And And a rear console door installed between the front unit and the rear console duct, the rear console door selectively opening and closing an inlet of the front unit to supply a part of air to the rear console duct. The method of claim 1, The heater core is located downstream of the front case with respect to the evaporator, and the rear console door is disposed between the heater core and the evaporator. The method of claim 1, A bypass passage communicating with a cold air passage formed downstream of the evaporator is formed at an inlet of the heater core, and the bypass passage is provided with a bypass door that rotates to selectively open and close the inlet of the heater core. Automotive air conditioning unit. The method of claim 1, And an auxiliary heater core installed at the rear console unit to be opened and closed by a pair of auxiliary doors. The method of claim 1, And the rear console door is installed to selectively open and close an opening of a portion where the front case and the rear console duct are coupled to each other.