KR20120138113A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE: An air conditioning device for a vehicle is provided to rapidly remove frost by whole hot air to a defrost outlet in a front seat at an initial stage of heating in winter time and to enhance air mixing efficiency, thereby improving air conditioning performance. CONSTITUTION: An air conditioning device for a vehicle comprises an air conditioner case(100), an evaporator(200), a heat core, a front seat heating flow path, a front seat cooling path, a rear seat heating flow path, a rear seat cooling flow path, a rear seat vent door(520), a front seat temp door(410), a rear seat temp door(510), a guide member(600), and a front seat discharging door. The rear seat temp door controls opening degrees of the rear seat heating flow path and rear seat cooling flow path. The guide member is arranged in between the evaporator and heater core in the inside of the air conditioner case. The guide member limits the rotary motion of the front temp door and the rear temp door. The front discharging door discharges air flowing into through the front cooling flow path and the front heating flow path to parts needed the air.

Description

Air conditioner for vehicle {Air conditioner for vehicle}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner, and more particularly, to an air conditioner for cooling an air sucked to heat or cool an interior of a vehicle by evaporation of a refrigerant or heating air sucked by cooling heat of engine cooling water. It is about.

BACKGROUND ART Generally, a vehicle air conditioner is a device for heating or cooling an interior of a vehicle by heating or cooling air introduced from the outside to blow into an interior of a vehicle, including a blower for introducing outside air or a bet, and suctioned air. An evaporator, a heater core, and the like are provided for cooling by evaporation of a refrigerant or heating air sucked by cooling heat of engine cooling water.

However, such a conventional air conditioner for a vehicle, in the air conditioning control independently of the front seats and rear seats, and the left and right spaces (Muti-Zone), the air conditioning control in the state that the temperature interference of the front seats and rear seats occurred There was a problem that is made, and there is a problem that the air conditioning performance is reduced, such as the flow rate of cold or hot air blown to each space of the multi-zone or the air mixing efficiency of cold and hot air is reduced.

An object of the present invention is to provide an air conditioning apparatus for a vehicle that can perform independent air conditioning control without improving the position of the door and its structure, without temperature interference between the front and rear seats, and improve the air conditioning performance.

The present invention, the air inlet is formed on the inlet side, the air inlet through the inlet is discharged to each required location of the vehicle, the evaporator provided on the inlet side in the inside of the air conditioning case, Heater core which is provided in the rear of the evaporator in the air conditioning case, all the heating oil flows through the heater core after passing through the evaporator and flows upwards, all the stones flowing through the upper side of the heater core after passing through the evaporator Cooling flow path, after the evaporator passes through the heater core flows to the lower side of the rear heating oil flow path, after passing through the evaporator flows through the lower side of the heater core flows through the cooling stone flow path, the rear lower portion of the heater core rotates The rear seat heating channel and the rear seat cooling channel can be selectively opened according to the turning motion. And a rear seat vent door for simultaneously controlling the flow rates of the rear seat heating passage and the rear seat cooling passage, and rotatably disposed in front of the heater core to control the opening degree of the front seat cooling passage and the front seat heating passage according to a turning motion. The front seat temporal door, the rear seat is rotatably disposed in front of the heater core to adjust the opening degree of the rear seat heating passage and the rear seat cooling passage according to the swinging movement, the evaporator and the heater core inside the air conditioning case Disposed between and provided to the guide member and the air conditioning case to define the turning movement of each of the front seat temper and the rear seat door, the air flowing through the front seat cooling passage and the front seat heating passage of the front seat of the vehicle Provided is an air conditioner for a vehicle including an all-out discharge door for discharging to each required location.

Therefore, the vehicle air conditioner according to the present invention, independent air conditioning control for the multi-zone without temperature interference of the front and rear seats, can increase the flow rate of the warm air air to the rear seats, warm air during the initial heating in winter All the air is blown through the front seat defrost discharge port to bring about a quick effect on defrosting, and when the air mixed with cold and warm air is blown into the back seat, the air mixing efficiency can be increased to improve the overall air conditioning performance.

1 is a cross-sectional view showing the internal structure of a vehicle air conditioner according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating a state in which a door is opened and closed and air flow during a cooling operation in the vehicle air conditioner of FIG. 1.
3 is a cross-sectional view showing a state in which the door is opened and closed during the heating operation in the vehicle air conditioner of Figure 1 and the flow of air.
4 is a cross-sectional view illustrating a state in which a door is opened and closed and a flow of air during a mixing operation in the vehicle air conditioner of FIG. 1.
5 is a cross-sectional view showing the flow of air at the time of opening the rear seat door when the cooling operation in the vehicle air conditioner of FIG.
FIG. 6 is a cross-sectional view illustrating a state in which a door is opened and closed and air flow when the rear wind volume is turned off during heating operation in the vehicle air conditioner of FIG. 1.
7 is a perspective view illustrating a rear seat vent door of the vehicle air conditioner illustrated in FIG. 1.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIG. 1, a vehicle air conditioner 700 according to an embodiment of the present invention includes an air conditioner case 100, a guide member 600, and an evaporator disposed inside the air conditioner case 100, respectively. 200 and the heater core 300.

In addition, the vehicle air conditioner 700 includes an all seat heating passage P2 (see FIG. 3), an all seat cooling passage P1 (see FIG. 2), a rear seat heating passage R2, and a rear seat cooling passage R1. Are each formed, and the doors for adjusting the opening degree of each flow path are provided.

First, in the air conditioning case 100, an inlet 110 is formed at an inlet side, so that air is introduced from the inlet 110, and the air introduced through the inlet 110 is discharged to each required place of the vehicle. It is structured.

Here, each of the required destinations, Defrost Vent (421) for discharging the air toward the front window of the vehicle for the front seat, that is all seats of the vehicle, and all seat face vent (Face) for discharging the air above the top of the seat of the vehicle Vent 431 and a foot vent 441 for discharging air toward the bottom of the front seat of the vehicle. The requirements are: a rear seat vent (521) for discharging air to the rear seat of the vehicle, that is, the rear seat of the vehicle, and a rear seat vent (530) for discharging air toward the rear seat of the vehicle. ). Here, the front seat foot vent 441 and the rear seat foot vent 530 have a structure in communication with each other.

On the other hand, the air conditioning case 100, although not shown, includes a left case and a right case to be joined to the left and right in a symmetrical structure, and includes a lower case coupled to the bottom of the left and right cases. In this case, the air conditioning case 100, the inner flow path may be divided into left and right by the left and right separation walls, the left and right separation walls are installed between the left and right cases and in the center of the lower case the air conditioning The internal flow path of the case 100 is divided into left and right as a whole. Detailed descriptions of the left and right cases, the lower case and the left and right separation walls will be omitted since they correspond to a known vehicle air conditioner. In addition, the air conditioning case 100, although not shown in the inlet 110 is provided with a blower.

The evaporator 200 is disposed at the inlet side of the air conditioning case 100, and serves to cool the air introduced into the air conditioning case 100.

The heater core 300 is disposed to be spaced apart from the rear of the evaporator 200 in the air conditioning case 100, and serves to heat the air passing through the evaporator 200.

Here, the evaporator 200 is erected backwards with respect to the vertical direction on the inlet side, the heater core 300 is erected forward inclined forward with respect to the vertical direction at the rear lower side of the evaporator 200, the evaporator 200 The cold air is cooled in) can be minimized by the heater core 300, the height of the air conditioning case 100 can be lowered.

The guide member 600 is disposed inside the air conditioning case 100, and is disposed at the rear of the evaporator 200 and the front of the heater core 300 to be described below. (510) It serves to limit each turn movement.

Although not shown, the present embodiment may further include an electric auxiliary heater behind the heater core 300. The electric auxiliary heater serves to improve heating efficiency during heating operation when the temperature of the coolant is low, such as a diesel vehicle, and receives power from the battery of the vehicle without requiring a separate power supply device and has a large heating effect. It is preferable to apply a PTC (Positive Temperature Coefficient) heater.

Thus, looking at the flow of air of the vehicle air conditioner 700 according to the above structure as follows.

First, the vehicle air conditioner 700 includes a front seat heating channel P2, a front seat cooling channel P1, a rear seat heating channel R2, and a rear seat cooling channel R1.

The all seat heating path P2 is a flow path flowing upward through the heater core 300 after the air introduced through the inlet 110 passes through the evaporator 200, and is heated as a front seat of a vehicle. To supply.

The all seat cooling path P1 is a flow path that bypasses the heater core 300 and bypasses the heater core 300 after passing through the evaporator 200, and flows in a vehicle. Cooler is supplied by all seats.

The rear seat heating passage R2 is a flow path flowing downward through the heater core 300 after the air flowing through the inlet 110 passes through the evaporator 200 and is heated to the rear seat of the vehicle. To supply.

The rear seat cooling path R1 is a flow path that bypasses the lower side of the heater core 300 after the air flowing through the inlet 110 passes through the evaporator 200, and passes through the rear seat of the vehicle. Supply the air conditioner.

Thus, looking at the door for adjusting the opening degree of each flow path, the present embodiment is the front seat door 410, the rear seat door 510, the rear seat vent door 520, the front seat foot door 440 and all seat auxiliary doors. (450).

The front seat door 410 is rotatably disposed on the front upper side of the heater core 300 in the air conditioning case 100, one end is rotatably coupled to the first pivot shaft 410a, While the other end is turning, the opening degree of the all seat cooling passage P1 and the all seat heating passage P2 is controlled. The front seat door 410 is positioned such that the first pivot shaft 410a is in contact with the upper end of the outlet side of the heater core 300, and the other end is located above the evaporator 200 and the guide member according to the pivoting movement. The upper end of 600 is in contact with each other. In detail, the other end of the front seat door 410 contacts the guide member 600 to close the front seat heating passage P2 and open the front seat cooling passage P1 or the evaporator 200. In contact with the upper side closes the all seat cooling passage (P1) and opens the all seat heating passage (P2). As such, in the present embodiment, since the first pivot shaft 410a of the all-temporary door 410 is located at the upper end of the heater core 300, the dead zone is eliminated with respect to the upper side of the heater core 300. In addition, the other end of the all-temper door 410 is rotated to efficiently control the opening degree of the all-heat cooling path P1 and the all-heat heating path P2 at the same time.

The rear seat door 510 is disposed at the front lower side of the heater core 300 to control the temperature of the rear seat by adjusting the opening degree of the rear seat heating passage R2 and the rear seat cooling passage R1. .

Here, the rear seat door 510 is rotatably coupled in the air conditioning case 100, one end is rotatably coupled to the second rotation shaft (510a), while the other end is the rear seat heating passage (R2) ) And the rear seat cooling path R1. The rear seat door 510 is positioned such that the second pivotal shaft 510a is in contact with the lower end of the inlet side of the heater core 300, and the other end of the rear seat door 510 is lower and the lower surface of the guide member 600 according to the pivoting movement. The inner surface of the air conditioning case 100 is in contact with each other. At this time, the other end of the rear seat door 510 is in contact with the lower surface of the guide member 600 to close the rear seat heating passage (R2) and open the rear seat cooling passage (R1), or the air conditioning case ( The rear seat cooling path R1 is closed in contact with the inner side of the door 100 and the rear seat heating path R2 is opened. Thus, in this embodiment, the second pivot shaft 510a is located at the lower end of the heater core 300, so that the dead zone can be removed from the lower side of the heater core 300, and the other end While turning, the opening degree of the said rear seat cooling flow path R1 and the rear seat heating flow path R2 can be efficiently controlled simultaneously.

The rear seat vent door 520 is rotatably disposed on the rear lower side of the heater core 300, and adjusts the opening degree of the rear seat solvent 521 and the rear seat foot vent 530 according to the pivoting movement. Selectively opening and closing the rear seat heating channel R2 and the rear seat cooling channel R1 to simultaneously control the flow rates of the rear seat heating channel R2 and the rear seat cooling channel R1, respectively.

Here, the rear seat vent door 520 is rotatably coupled to the air conditioning case 100 and includes a first door 522 and a second door 524.

Meanwhile, the rear seat vent door 520 is a butterfly type, and the first door 522 and the second door 524 are aligned in opposite directions with respect to the third pivot 521a. Are arranged. Here, the third pivot 521a is positioned to be spaced apart from the lower end of the heater core 300, and the first door 522 and the second door 524 are integrally interlocked with each other to pivot. It is. Here, the first door 522 is in contact with the lower end of the outlet side of the heater core 300 and the inner surface of the air conditioning case 100 in accordance with the swinging movement, the second door 524 is the rear seat solvent Each of the inner end portions 521 is in contact with each other, and the flow rates of the air conditioners and the heaters discharged to the rear seat solvent 521 are controlled. In the present embodiment, the first door 522 and the second door 524 of the rear seat vent door 520 is formed integrally with each other so as to be easy to manufacture and to simplify the control method and structure. Although the operation case is shown as an example, it is a matter of course that the first and second doors 522 and 524 can be individually controlled in one embodiment.

On the other hand, the first door 522 has a structure in which the longitudinal cross-sectional shape becomes a fan shape so as to exempt the opening degree of the rear seat heating passage R2, and thus the opening degree and the flow rate of the rear seat heating passage R2. More control is possible. That is, by making the longitudinal section of the first door 522 into a fan shape, it is possible to reliably seal the air passing through the heater core 300.

The all seat discharge door for discharging air to the vehicle seat is provided in the air conditioning case 100, and the air flowing through the seat cooling path P1 and the seat heating path P2 is required for each seat of the vehicle seat. As the doors are discharged into the defrost door, the defrost door 420 for adjusting the opening degree of the defrost vent 521, the seat face door 430 for adjusting the opening degree of the seat face vent 431, and the seat foot vent ( And a front seat door 440 for adjusting the opening degree of the 441. Such a detailed description of the front seat discharge door will be omitted since it is substantially similar to the front seat discharge door of a known vehicle air conditioner.

The front seat auxiliary door 450 is rotatably disposed on the rear upper side of the heater core 300 in the air conditioning case 100, one end of which is connected to the first pivot shaft 410a, and the other end of which is pivoted. The opening degree of the all seat heating path P2 is adjusted while contacting each of the upper side of the outlet side of the heater core 300 and the inner surface of the guide part 500 of the air conditioning case 100. In detail, the seat auxiliary door 450 is disposed to be aligned in the opposite direction with respect to the seat tempor 410 based on the first pivot shaft 410 a, and the seat tempor 410 is aligned with the seat tempor 410. It is structured to rotate by interlocking integrally.

Thus, the operation and air flow of the vehicle air conditioner according to the present embodiment will be described with reference to FIGS. 2 to 4.

Referring to FIG. 2 illustrating a case in which the vehicle air conditioner 700 operates in a cooling mode with respect to the front seats and the rear seats, the cooling mode, the front seat cooling passage P1 and the rear seat cooling passage R1 are opened. The front seat heating channel P2 and the rear seat heating channel R2 are closed.

To this end, in this embodiment, the other end of the front seat Temporary door 410 is in contact with the upper side of the guide member 600 to close the front seat heating passage P2, and the other end of the Rear Seat Door 510 To the lower side of the guide member 600 to close the rear seat heating passage (R2), so that the air cooled through the evaporator 200 is supplied to each vent of the front and rear seats. Then, the front seat cooling path P1 and the rear seat cooling path R1 are opened, so that the required parts of the vehicle, that is, the defrost vent 421, the seat face vent 431, and the seat foot vent 441. ), The cooler is discharged into the rear seat solvent 521 and the rear seat foot vent 530. Here, the air conditioners discharged to the respective required destinations are respectively adjusted by the degree of opening of the doors for adjusting the opening degree of each required destination, and the air conditioners discharged to the defrost vent 421 open the degree of the defrost door 420. In accordance with the flow rate is adjusted, the cooler discharged to the front seat face vent 431 flow rate is controlled through the wire face door, the cooler discharged to the front seat foot vent 441 and the rear seat foot vent 530 The flow rate is controlled through the front seat door 440.

The rear vent vent door 520 may simultaneously control the opening degree and the flow rate of each of the rear seat heating passage R2 and the rear seat cooling passage R1, and the rear seat solvent 521 and the rear seat foot vent. The flow rate of the air discharged to the 530 may be selectively controlled, and the flow rate of the cooler or the heater discharged to the rear-cone solvent 521 and the rear-foot foot vent 530 may be adjusted according to the turning degree. .

Thus, when the present embodiment operates in the cooling mode as described above, the first door 522 and the second door so that the rear seat heating passage R2 is closed and the rear seat cooling passage R1 is opened. Each of the other ends pivots in one direction (counterclockwise direction) to supply the cooler to the rear seat solvent 521.

On the other hand, referring to Figure 3 showing the case in which the vehicle air conditioner 700 operates in the heating mode for the front seat and the rear seat, the heating mode, the front seat heating passage (P2) and the rear seat heating passage (R2) is open The front seat cooling channel P1 and the rear seat cooling channel R1 are closed.

To this end, in the present embodiment, the other end of the all-temper door 410 is brought into contact with the upper side of the evaporator 200 to close the all-heat cooling path P1 and simultaneously open the all-heat heating path P2. The other end of the rear seat door 510 is brought into contact with the inner surface of the air conditioning case 100 so as to block the rear seat cooling passage R1 and open the rear seat heating passage R2. At this time, the rear seat vent door 520 is closed, the rear seat cooling flow passage, and the rear seat heating passage R2 is opened so that the other end of each of the first door 522 and the second door 524 is different. The heater is supplied to the subsequent solvent and the rear seat foot vent 530 by turning in a clockwise direction.

4 is a diagram illustrating a case in which a heater and an air conditioner are operated in a mixing mode, in which the mixing mode is configured to discharge the mixer, in which the air conditioner and the heater are mixed, to the respective requirements; The front seat cooling passages P1 are simultaneously opened, and the rear seat heating passage R2 and the rear seat cooling passage R1 are simultaneously opened at the same time.

That is, in the mixing mode, the all seat temper door 410 is located between the upper side of the evaporator 200 and the guide member 600, and the all seat cooling passage P1 and the all seat heating passage P2. Simultaneously opening the, the rear seat door 510 is located between the lower side of the guide member 600 and the air conditioning case 100 and simultaneously opening the rear seat cooling passage (R1) and the rear seat heating passage (R2) Further, the rear seat vent door 520 is located between the rear seat solvent 521 and simultaneously opens the rear seat cooling passage R1 and the rear seat heating passage R2.

Here, as a method of controlling the temperature of the mixer discharged to the rear seat, the rear seat vent door 520 is fixedly positioned between the rear seat solvent 521, and in this state, the opening degree of the rear seat door 510 is adjusted. The temperature of the mixer can be adjusted, and in another way, the rear seat door 510 is fixedly positioned between the lower side of the guide member 600 and the air conditioning case 100, and then the opening degree of the rear seat vent door 520. It may be controlled to control the flow rate of the heater and the air conditioner. However, this may, in one embodiment, adjust the temperature of the mixer in a variety of ways.

On the other hand, in the heating mode and mixing mode, the defrost vent 421 and the defrost door 420, the seat face vent 431, and the seat face door 430, which adjusts the opening degree thereof. Compared to the operation in the cooling mode, the front foot door 440 which controls the opening degree of the front seat foot vent 441 and the rear seat foot vent 530 has only been replaced by the heater or mixer. Actual operation is similar and will be omitted.

As described above, the present embodiment can perform independent air conditioning control for the multi-zone without temperature interference between the front and rear seats. As shown in FIG. 5, when the cooling mode is used as the front seat and the mixing mode is used as the rear seat, By closing the all seat heating passage P2 passing through the heater core 300 while the all seat auxiliary door 450 is in contact with the inner surface of the air conditioning case 100, the temperature change by the inflow of the back seat wind into the front seat. The flow rate of the warm air can be increased with the rear seats.

In addition, the present embodiment, as shown in Figure 6, when operating in the heating mode, only operating in the heating mode with only the seat, the heater core by discharging all the heaters passing through the heater core 300 only to the seat ( The use efficiency of 300) can be improved, and in particular, during the initial winter heating, the entire amount of hot air can be blown to the front seat defrost discharge port to bring about a quick effect on defrosting.

On the other hand, the present embodiment, the respective doors are installed to be driven separately to the left and right to control the opening degree of the left and right flow path of the air conditioning case 100, respectively, the front and rear seats and the vehicle interior of the vehicle Cooling for the left and right side of can be controlled independently.

As described above, the vehicle air conditioner 700 according to the present embodiment has a structure capable of effectively discharging the air conditioner or the heater to all seats and rear seats through each door disposed at an optimal position and at the same time each door. By excluding each other's interoperability, each door can be operated independently, allowing independent air conditioning control for multi-zones without temperature interference between the front and rear seats, and increasing the flow of warm air to the rear and front seats, as well as in winter During the initial heating, all the warm air can be blown through the all-hole defrost discharge port, resulting in a quick defrost effect. In addition, the present embodiment, when blowing the air mixed with cold air and warm air through the rear seat vent door 520 capable of exempt to increase the air mixing efficiency, the evaporator 200 and the heater core 300 Including the dead zone in the air conditioning case 100 can be improved the overall air conditioning performance.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100 ... air conditioning case 200 ... evaporator
300 ... Heater core 410 ... Temperature door
420 ... Defrost Door 430 ... All Face Face Door
440 ... Footstool for all 450 ... Assistance door for all
500 guide ribs 510 thick stone door
520 ... rear seat vent door 600 ... guide member
700. Car air conditioner P1 ... All seat cooling path
P2 ... Front seat heating furnace R1 ... Rear seat cooling furnace
R2 ... rear heating heater

Claims (7)

An air inlet having an inlet through which air is introduced, and the air introduced through the inlet being discharged to each required location of the vehicle;
An evaporator provided at the inlet side in the air conditioning case;
A heater core provided behind the evaporator in the air conditioning case;
After passing through the evaporator through the heater core flows all the upper flow path;
An all-stone cooling passage flowing through the evaporator and bypassing the upper side of the heater core;
After passing through the evaporator after passing through the heater core flows to the lower stone heating duct;
A after-seat cooling passage flowing through the evaporator and bypassing the lower side of the heater core;
A rear seat vent door rotatably disposed at a rear lower side of the heater core to selectively open and close the rear seat heating passage and the rear seat cooling passage according to a pivoting movement, and simultaneously control the respective flow rates of the rear seat heating passage and the rear seat cooling passage;
An all seat temporal door rotatably disposed above the heater core to control the opening degree of the all seat cooling path and the all seat heating path according to a turning motion;
A rear seat temporal door rotatably disposed at the front lower side of the heater core to adjust an opening degree of the rear seat heating passage and the rear seat cooling passage according to a turning motion;
A guide member disposed between the evaporator and the heater core in the air conditioning case to define turning motions of the front seat door and the rear seat door; And
The air conditioner is provided in the air conditioning case, and the air conditioning apparatus for a vehicle comprising a front seat discharge door for discharging the air flowing through the front seat cooling path and the front seat heating path to each required place of the vehicle seat. The method according to claim 1,
The air conditioning case,
A vehicle air conditioner including a left case and a right case which are formed from side to side in a symmetrical structure. The method according to claim 1,
And a first pivotal shaft of the all-temper door is located at an upper end of the heater core. The method according to claim 3,
One end is connected to the first pivot, the vehicle air conditioner further comprises a front seat auxiliary door for adjusting the opening degree of the seat heating passage according to the swing movement. The method of claim 4,
The seat auxiliary door is,
The air conditioner for the vehicle, which is arranged to be aligned with the first temporal shaft in a direction opposite to the front seat door, and pivots in conjunction with the front seat door. The method according to claim 1,
And a second pivotal shaft of the rear seat door is located at an inlet side lower end of the heater core. The method according to claim 1,
The rear seat vent door,
And a first door and a second door which are arranged to be aligned in opposite directions with respect to a third rotational shaft spaced apart from the lower end of the heater core, and pivotally interlocked with each other.

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