KR20050120159A - Air conditioner for vehicle - Google Patents

Abstract

According to the present invention, a vehicle air conditioner is disclosed. In the vehicle air conditioner, a seat evaporator and a seat heater core are disposed in an air passage, a vent outlet, a defrost outlet, and a floor outlet are formed to discharge air conditioning air to all the seats in the vehicle, and the air passage is divided into two regions. A seat having a seat partition to divide, a seat having a seat temporal door for independently controlling the temperature of the area divided by the seat partition and a seat mode door for adjusting the opening of the vent outlet, the defrost outlet, and the floor outlet. A front seat air conditioner equipped with an air conditioning case, a front seat blower that blows air into the front seat air conditioning case, a rear seat evaporator is disposed in the air flow path, and the rear seat heater core is disposed approximately horizontally, and the air conditioning wind is installed in the rear seat of the cabin. Vent vents and floor outlets for discharging are formed, and bypass flow paths are formed on the rear heater core. And a rear door temporal partition for dividing the air flow path into two regions, a rear door temporal door for opening and closing an upstream side of the rear heater core, a bypass door for adjusting the opening degree of the bypass flow path, and a vent discharge port and a floor discharge port. It is characterized by consisting of a rear seat air conditioner having a rear seat air conditioner having a rear seat mode door for adjusting the opening degree, and a rear seat air blower for blowing air into the rear seat air conditioning case.

Description

Air conditioner for vehicle {Air conditioner for vehicle}

The present invention relates to a vehicle air conditioner for cooling and heating a vehicle, and more particularly, to a multi-zone type vehicle air conditioner capable of rapid temperature change and independently adjustable temperature before, after, and left and right.

Typically, the interior of the vehicle is provided with an air conditioner to heat or cool the inside and outside the air to enter or circulate the room, thereby maintaining the room temperature in an appropriate state to give a passenger a comfortable ride. The air conditioner is provided with a case having a plurality of flow paths inside, a blower installed at one side of the case to blow air into and out of the vehicle, and an evaporator to cool the introduced inside and outside, and to heat the outside air. The heater core is basically provided.

In the air conditioner for automobiles, the refrigerant compressed by the compressor driven by the engine is heat-exchanged with the refrigerant in a process in which the refrigerant compressed by the compressor is sequentially introduced into the compressor through the condenser, the expansion valve, and the evaporator, and the heat exchanged with the refrigerant. The air conditioner that cools the inside of the vehicle by entering the room in a state, and the inside and outside air blown by the blower in the process of returning to the engine through the heater core after the coolant that cools the engine heat exchanges with the coolant to enter the warm state. It is a device including a heating device for heating.

However, in the conventional vehicular air conditioner as described above, there is a problem that the cooling and heating efficiency of the rear seat is deteriorated because the vent outlet, the floor outlet, and the like, in which the air-conditioning air is blown out into the vehicle interior, are placed in front of the front seat.

In order to solve the above problems, the Republic of Korea Patent Publication No. 2001-0059264 by the same applicant and the present invention discloses an auxiliary air conditioner.

A schematic partial perspective view of a vehicle having a main air conditioner and an auxiliary air conditioner of this type is shown in FIG. 1. The main air conditioner Ma blows air through the wind shield openings 292'a, b, the center and side openings 291'a, b, and the floor openings 293'a, b, and the auxiliary air conditioning The device Aa blows air through the vent and floor discharge ports 9a, b, 10a, b.

According to the disclosed technology, the auxiliary air conditioner (Aa) is mounted separately from the main air conditioner (Ma) in the console space in order to efficiently perform cooling and heating of the rear seat. The auxiliary air conditioner includes an evaporator and a heater core. The auxiliary air conditioner flows through the inside of the auxiliary air conditioner, and a working fluid such as a refrigerant that exchanges heat with the internal and external air is branched from the main air conditioner Ma to be introduced. At this time, the inflow of the working fluid is controlled by using a solenoid or a water valve, so that the temperature of the air conditioning wind can be adjusted.

However, according to the related art, the temperature control of the air conditioning wind is performed by the inflow and blocking of the working fluid, and thus, due to the continuity of the fluid, the temperature of the air conditioning wind cannot be changed quickly in response to the operation of the passenger, causing a time delay. Is generated. For example, in the case where cooling is required while heating is performed, the temperature change cannot be made quickly due to the cooling water remaining in the heater core, and some time is required until the cooling air is discharged.

In addition, according to the related art, since independent driving of the auxiliary air conditioner Aa cannot be performed independently, there is a problem in that a multi-zone type air conditioner capable of temperature control can be implemented according to the left and right regions.

In order to solve the above problems, the auxiliary air conditioning unit may be designed on each side to enable independent temperature control, but in this case, the evaporator and the heater core are separated from the left and right, and thus the pipeline for the inflow and outflow of the refrigerant and the cooling water. In particular, a plurality of pipes must be connected from the main air conditioner located at the front of the vehicle to the auxiliary air conditioner located at the rear of the vehicle, thereby increasing the overall installation space and increasing the number of parts. This raises the problem of processing cost and manufacturing cost.

The present invention has been made to solve the above problems and other problems, and an object of the present invention is to provide a multi-zone type vehicle air conditioner capable of independent driving before and after, left and right.

Another object of the present invention is to provide an air conditioner for a vehicle capable of effectively cooling and heating the rear seat of a vehicle and enabling rapid temperature change.

In order to achieve the above object, the vehicle air conditioner of the present invention,

The seat evaporator and the seat heater core are arranged in the air passage,

A vent discharge port, a defrost discharge port, and a floor discharge port for discharging the air conditioning wind to all the seats in the vehicle cabin are formed,

A barrier rib for dividing the air flow path into two regions;

A seat air conditioner case having a seat temporal door for independently controlling a temperature of a region divided by the seat partition wall, and a seat mode door for adjusting the opening degree of the vent outlet, the defrost outlet, and the floor outlet;

A front seat air conditioner having a front seat blower for blowing air into the front seat air conditioning case;

The rear seat evaporator is arranged in the air flow path, the rear seat heater core is arranged approximately horizontally,

Vent vents and floor outlets for discharging air-conditioning air to the rear seats in the cabin are formed.

A bypass flow path is formed at an upper portion of the rear seat heater core,

A rear stone partition wall dividing the air flow path into two regions;

A rear seat air conditioner case having a rear seat temporal door for opening and closing the upstream side of the rear seat heater core, a bypass door for adjusting the opening degree of the bypass passage, and a rear seat mode door for adjusting the opening degree of the vent outlet and the floor outlet;

And a rear seat air conditioner having a rear seat blower for blowing air into the rear seat air conditioning case.

The vent opening and the floor discharge opening of the rear stone air conditioning case are preferably controlled by one rear stone mode door respectively formed in the divided area.

The vehicle air conditioner of the present invention includes a front seat air conditioner and a rear seat air conditioner. Hereinafter, the front seat air conditioner and the rear seat air conditioner will be described.

Figure 2 is a cross-sectional view of the seat air conditioning apparatus according to an embodiment of the present invention. Referring to the drawings, the seat air conditioner 200 includes a seat air conditioning case 21 provided with a plurality of flow paths, and a seat blower 22 installed in the seat air conditioner case 21 and each of which heats and cools the inside and outside air. A seat mode door 30a having a front seat evaporator 23 and a front seat heater core 27 and opening / closing discharge ports 126a, 126b, 129a, 129b, 130a, and 130b provided at an outlet end of the front seat air conditioning case 21. , 30b).

The front seat blower 22 formed at the inlet end of the front seat air conditioner case 21 introduces internal and external air to force the air flow inside the front seat air conditioner 200. Downstream of the front seat blower, a front seat septum 24 is formed to divide the flow space provided by the front seat air conditioner case 21 into independent spaces left and right, and the inside and outside air is divided into the divided spaces and blown.

In the electrodeposition evaporator 23, heat exchange between the introduced internal and external air and the refrigerant is performed, and as a result, the internal and external air is converted into cold. Here, the refrigerant is repeated in the cycle of evaporation, compression, condensation, expansion while sequentially circulating the all-evaporator 23 and the compressor, condenser and expansion valve (not shown).

The inside and outside air passing through the seat evaporator 23 is heat-exchanged with high-temperature cooling water in the seat heater core 27 depending on whether the seat temper doors 25a and 25b installed upstream of the seat heater core 27 are opened or closed. Is switched to.

The air-conditioning wind formed by such a flow path is based on whether or not the rear seat mode doors 30a and 30b installed at the outlet end are defrost discharge ports 126a and 126b, vent discharge ports 129a and 129b, and floor discharge ports. It is selectively blown to (130a, 130b). Here, the air-conditioning air discharged to the defrost discharge ports 126a and 126b is supplied to the vehicle interior through the wind shield openings 292'a and 292'b (see FIG. 1), and is discharged to the vent discharge ports 129a and 129b. The air-conditioning air is supplied to the room through the side and center openings 291'a and 291'b (see FIG. 1), and the air-conditioning air discharged to the floor discharge ports 130a and 130b is the floor openings 293'a and 293 '. b, see Fig. 1) is supplied to the interior of the vehicle. According to whether the discharge ports 126a, 126b, 129a, 129b, 130a, and 130b are opened or closed, the discharge modes are divided into a defrost mode, a vent mode, and a follower mode, respectively.

Meanwhile, the seat temper doors 25a and 25b and the seat mode doors 30a and 30b are symmetrically formed in an area divided by the seat septum 24 and independently driven by a separate actuator (not shown). Therefore, the heating and cooling mode and the discharge mode can be independently selected.

3 and 4a is a rear seat air conditioner according to an embodiment of the present invention. 3 is an exploded perspective view of the rear seat air conditioner, and FIG. 4A is a cross-sectional view of the rear seat air conditioner.

As shown in FIG. 4A, the rear seat air conditioner 100 includes a rear seat air conditioner 1 having a plurality of flow paths and a rear seat blower 2 installed at an inlet end of the rear seat air conditioner 1. And a rear stone evaporator 3 provided adjacent to the rear stone blower 2 and a rear stone heater core 7 provided downstream of the rear stone evaporator 3, and a plurality of flow paths provided in the rear air conditioning case 1 are provided. Rear seat mode for opening and closing the rear seat temporal doors 6a and 6b, the bypass doors 5a and 5b, and the outlets 9a, 9b, 10a and 10b provided at the outlet end of the rear seat air conditioning case 1. Doors 8a and 8b.

The rear seat air conditioning case 1 is provided with a plurality of flow paths, and the inside and outside air forced by the rear seat blower 2 installed on one side of the rear seat air conditioning case 1 flows.

As described above, the rear seat blower (2) forcibly flows inside the rear seat air conditioner (100), where the hub (not shown) of the rear seat blower (2) is one of the internal and external air flows. It is preferable that it is formed in the center so that it blows evenly without deflecting to the side.

The internal and external air introduced into the rear seat air conditioner 100 by the rear seat blower 2 is blown to the rear seat evaporator 3, and the upstream side of the rear seat evaporator 3 is designed to communicate without distinction between left and right sides. The rear seat evaporator (3) is a heat exchange between the refrigerant and the internal and external air, through which the internal and external air is cooled. Here, the refrigerant of the rear seat evaporator 3 may be introduced from the front seat air conditioner 200.

In the cooling process of the internal and external air, condensation water may be formed on the pipeline through which the refrigerant flows. The outlet 4 is formed at the bottom of the air conditioning case 1 to discharge the condensed water thus formed to the outside of the rear seat air conditioner 100.

As can be seen in Figures 3 and 4a, from the downstream of the rear evaporator 3 to the outlet end of the rear air conditioner 100, a rear bulkhead 11 is formed to divide the flow path of the outside air into two regions, The internal and external air cooled via the evaporator 3 is divided into two divided regions and blown.

Downstream of the rear seat evaporator 3 is divided into upper and lower flow paths 15 and 16. The upper flow passage 15 is a bypass flow passage that does not pass through the rear seat heater core 7. Bypass doors 5a and 5b are formed on the upper passage 15, and are rotatably coupled to the air conditioning case 1, thereby controlling the amount of internal and external air passing through the upper passage 15 by adjusting the opening degree thereof. .

Each of the actuators (not shown) drives the bypass doors 5a and 5b so that the bypass doors 5a and 5b can be individually opened and closed in two areas divided by the rear stone partition 11.

Meanwhile, the rear seat temporal doors 6a and 6b are formed on the lower passage 16, and the rear seat temporal doors 6a and 6b are rotatably coupled to the rear seat air conditioning case 1, thereby adjusting the opening degree thereof. The amount of internal and external air passing through the flow path 16 is controlled.

Each actuator (not shown) drives the rear temporal doors 6a and 6b so that the rear temporal doors 6a and 6b can also be opened and closed independently in two regions divided by the rear septum partition 11.

The internal and external air introduced into the lower passage 16 is blown to the rear heater core 7, and the internal and external air is converted into warmth through heat exchange with cooling water, and flows to the mixing chamber 18. In this case, the cooling water may be introduced through a branched pipe from the all-air air conditioner 200.

The inside and outside air passing through the upper flow passage 15 and the inside and outside air passing through the lower flow passage 16 are mixed in the mixing chamber 18 to be changed to the air conditioning wind of a suitable temperature to meet the needs of the passengers.

Vent outlets 9a and 9b are formed at an upper side of an outlet side of the rear seat air conditioner 100, and floor outlets 10a and 10b are formed at a lower side of the outlet side, which are divided by rear stone partitions 11. It is formed symmetrically in the left and right areas.

The vent ejection openings 9a and 9b and the floor ejection openings 10a and 10b change their opening and closing states according to the turning of the rear seat mode doors 8a and 8b provided adjacent thereto. The rear seat mode doors 8a and 8b are connected to a mode switch (not shown) to distribute air conditioning air to the vent and floor discharge ports 9a, 9b, 10a and 10b according to a passenger's request.

The rear seat mode doors 8a and 8b are driven by separate actuators (not shown), so that the air conditioning wind can be independently distributed in two regions divided by the rear seat partition wall 11.

Hereinafter will be described the operation of the rear seat air conditioner 100 according to the present invention configured as described above.

As shown in FIGS. 4A and 4B, in the cooling mode, the bypass doors 5a and 5b are opened, and the rear seat temporal doors 6a and 6b are closed, so that the rear seat blower 2 and the rear seat evaporator 3 are closed. The cold air passing through the air is not introduced into the rear seat heater core 7, but is bypassed and blown into the discharge ports 9a, 9b, 10a, and 10b. Here, the air conditioning blows to the discharge ports 9a, 9b, 10a and 10b according to the opening degree of the vent discharge ports 9a and 9b and the floor discharge ports 10a and 10b controlled by the rear seat mode doors 8a and 8b. The air volume is controlled.

As shown in Figs. 4C and 4D, in the heating mode, the bypass doors 5a and 5b are closed and the rear seat temporal doors 6a and 6b are opened to open the rear seat blower 2 and the rear seat evaporator 3. The internal and external air flows into the rear seat heater core 7 and is converted to warmth. Here, the air-conditioning air volume blown to each of the discharge ports 9a, 9b, 10a and 10b according to the opening degree of the vent discharge ports 9a and 9b and the floor discharge ports 10a and 10b controlled by the rear seat mode doors 8a and 8b. Adjusted.

As shown in FIGS. 4E and 4F, in the temperature control mode, the openings of the upper and lower passages 15 and 16 are controlled by the bypass doors 5a and 5b and the rear temporal doors 6a and 6b. , The upper flow via the rear evaporator 3 only and the lower flow passing through the rear evaporator 3 and then passing through the rear heater core 7 are mixed in the mixing chamber 18 to form an air-conditioning air of the required temperature. . Here, the discharge mode is adjusted according to whether the rear seat mode doors 8a and 8b formed at the output end of the rear seat air conditioner 100 are opened or closed.

On the other hand, the cooling and heating mode and the discharge mode are divided by the rear stone partition wall 11 by the individual driving of the rear temporal doors 6a and 6b, the bypass doors 5a and 5b, and the rear seat mode doors 8a and 8b. Can be adjusted independently in two zones.

As described above, according to the present invention, the rear seat air conditioner 100 can be compacted by connecting the rear seat air conditioner 100 and the front seat air conditioner 200 to cool and heat the rear seat. have.

Further, according to the present invention, the front seat air conditioner 200 provided with the front seat partition 24 and the rear seat air conditioner 100 provided with the rear seat partition 11 are provided in the partitions 11 and 24. By allowing the symmetrically installed doors to be individually driven, an air conditioner in which air-conditioning for the front, rear, left and right areas is independently controlled can be provided.

In addition, while the rear seat air conditioner 100 is driven independently from side to side, the rear seat evaporator 3 and the rear seat heater core 7 are integrally formed without being separated from side to side, thereby branching from the front seat air conditioner 200. Therefore, the plurality of pipelines for circulating the refrigerant and the cooling water do not need to be formed, so that the working fluid is circulated with only one inlet and outlet, thereby preventing waste of installation space and manufacturing cost required for installing a plurality of pipelines.

Further, according to the present invention, the temperature control of the air conditioning wind is controlled according to the opening and closing of the bypass doors 5a and 5b and the rear seat temporal doors 6a and 6b and the opening degree thereof, thereby turning on / off the water valve or the solenoid. Compared to the way the temperature is controlled, it is possible to change the temperature quickly, thereby improving the sensitivity during temperature control.

In the rear seat air conditioner, when air conditioning wind is supplied through the upper flow passage 15, the flow resistance of the air conditioning wind is reduced by bypassing the rear heater core 7 without passing through, so that the driving efficiency of the rear seat blower 2 is reduced. Is improved.

A vehicular air conditioner of the present invention configured as described above includes a temper air conditioner having a front seat bulkhead and a rear seat air conditioner having a rear seat bulkhead, the temporal door being symmetrically installed on the left and right sides of the partition walls. By allowing the doors and the mode doors to be individually driven, a multi-zone type air conditioner in which air-conditioning for front, rear, left and right areas is independently controlled can be provided.

According to the present invention, while implementing a multi-zone type air conditioner, by integrally forming the evaporator and the heater core without separating from side to side, the pipeline of the working fluid which is branched from the front seat air conditioner and connected to the rear seat air conditioner Since the working fluid is circulated by only one inlet and outlet without being formed in plural, the air conditioner is compact.

According to the present invention, the temperature control of the rear seat air conditioner is controlled according to the opening degree of the bypass door and the temp door, so that the temperature is controlled by the inflow and blocking of the working fluid according to the on / off operation of the valve. As a result, rapid temperature change is possible, which improves the sensitivity during temperature control.

In addition, the discharge mode of the rear seat air conditioner can be adjusted by only one rear seat mode door respectively formed in the area divided by the rear seat partition.

In addition, when the air conditioning air of the rear seat is supplied through the bypass flow path, it is possible to blow directly to the discharge port without passing through the heater core, thereby reducing the flow resistance and increasing the blowing efficiency.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and those skilled in the art to which the present invention pertains various modifications and other equivalent embodiments therefrom. You can understand that. Accordingly, the true scope of protection of the invention should be defined by the appended claims.

1 is a schematic layout view of a vehicle air conditioner according to the prior art,

Figure 2 is a cross-sectional view of the front seat air conditioner that can be employed in one preferred embodiment of the present invention,

3 is an exploded perspective view of a rear seat air conditioner that can be employed in a preferred embodiment of the present invention;

4A to 4F are operation state diagrams of the rear seat air conditioner shown in FIG. 3.

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

1. Rear seat air conditioning case 2. Rear seat blower

3 ... Rear evaporator 4 ... Outlet

5a, 5b ... bypass door 6a, 6b ...

7 Rear seat heater cores 8a, 8b Rear seat mode door

9a, 9b ... Vent outlet 10a, 10b ... Floor outlet

11 ... thickness bulkhead 21 ... all air conditioning case

22 ... All Stone Blower 23 ... All Stone Evaporator

25a, 25b .... Temp Temp Door 30a, 30b ... Turn Mode Door

27 .... Seat heater core 100 ... Seat air conditioner

126a, 126b ... Defrost outlet 129a, 129b Vent outlet

130a, 130b ... Floor outlet 200 ... All air conditioners

Claims (2)

The seat evaporator and the seat heater core are arranged in the air passage, A vent discharge port, a defrost discharge port, and a floor discharge port for discharging the air conditioning wind to all the seats in the vehicle cabin are formed, A barrier rib for dividing the air flow path into two regions; A seat air conditioner case having a seat temporal door for independently controlling the temperature of the area divided by the seat partition walls, and a seat mode door for adjusting the opening degree of the vent outlet, the defrost outlet, and the floor outlet; A front seat air conditioner having a front seat blower for blowing air into the front seat air conditioning case; The rear seat evaporator is arranged in the air flow path, the rear seat heater core is arranged approximately horizontally, Vent vents and floor outlets for discharging air-conditioning air to the rear seats in the cabin are formed. A bypass flow path is formed at an upper portion of the rear seat heater core, A rear stone partition wall dividing the air flow path into two regions; A rear seat air conditioner case having a rear seat temporal door for opening and closing the upstream side of the rear seat heater core, a bypass door for adjusting the opening degree of the bypass passage, and a rear seat mode door for adjusting the opening degree of the vent outlet and the floor outlet; And a rear seat air conditioner having a rear seat blower for blowing air into the rear seat air conditioner case. The air conditioner for a vehicle according to claim 1, wherein the vent discharge port and the floor discharge port of the rear seat air conditioning case are controlled by one rear seat mode door respectively formed in the divided area.