JP6546764B2 - Air conditioner for vehicle - Google Patents

Description

  The present invention relates to an air conditioner for a vehicle mounted on a vehicle such as a car.

Patent Document 1 discloses an air conditioner for a vehicle having an air conditioning duct through which air supplied to the interior of a vehicle passes, and a heater and an evaporator provided in the air conditioning duct.
In such a conventional air conditioner for vehicles, the air in the air conditioning duct flows in the duct by being pressure-fed by the blower fan provided at the intake port. In addition, when the power source of the vehicle operates, the heater functions as a heat exchanger, and the evaporator functions as a cold heat exchanger. Air flowing in the air conditioning duct is cooled by the evaporator, heated by the heater, and blown out into the room from the blowout port. The temperature and humidity of the room can be adjusted while the power source of the vehicle is operating.

JP 2008-080850 A

And in such a conventional air conditioner for vehicles, it is desirable for the air in a channel to be temperature-controlled as a whole by a heater or an evaporator.
On the other hand, the flow of air in the air conditioning duct generated by the blower fan is large at the center of the blowoff flow and smaller as the center is away from the center. The air flow immediately after the blower fan becomes uneven.
As a result, in order to control the air in the air conditioning duct as a whole, a flow path of a certain length is provided between the blower fan and the heater or the evaporator, and the flow is uniformed in this flow path. You need to get close to As a result, the air conditioning duct becomes larger.

  As described above, in the air conditioner for a vehicle, it is required to suppress the increase in size of the air conditioning duct and to reduce the occupied volume of the indoor space even if the air conditioning duct is installed in the vehicle interior.

An air conditioner for a vehicle according to the present invention includes an air supply passage through which air supplied to the interior of a vehicle passes, an air conditioning duct in which a plurality of outlet passages communicating with the air supply passage are formed, and a plurality of the outlet passages. And a plurality of blowoff fans for adjusting the flow rate of air blown out from the plurality of blowoff passages, a refrigerant body for accommodating the first intermediate medium, and adjusting the temperature of the first intermediate medium A first tank to which a medium is supplied, a second tank to accommodate a second intermediate medium, and a refrigerant and a heating medium for adjusting the temperature of the second intermediate medium, and the air conditioning duct A first heat exchanger for circulating the first intermediate medium from the first tank and performing heat exchange with air; and a first heat exchanger provided in the air conditioning duct, wherein the second intermediate medium is circulated from the second tank Heat exchange with the air A second heat exchanger different from the first heat exchanger, the first intermediate medium contained in the first tank, and the second intermediate medium contained in the second tank, And a control unit that controls the temperature required to achieve a desired temperature .

  Preferably, a plurality of outlet path shutters provided in the plurality of outlet paths and opening and closing the plurality of outlet paths may be provided.

Preferably, the second heat exchanger is provided in the air conditioning duct upstream of the first heat exchanger, and the second heat exchanger circulates the second intermediate medium from the second tank; The control unit may control the second intermediate medium to a dehumidifying temperature.

  Preferably, an indoor circulation path that circulates the first intermediate medium between the first tank and the interior of the vehicle may be provided.

In the present invention, a plurality of blowoff fans are provided individually for the plurality of blowoff paths branched from the air supply path. Therefore, for example, the flow rate is adjusted for each outlet path, and it becomes possible to realize fine air conditioning control.
In addition, the plurality of outlet path fans corresponding to the plurality of outlet paths generate a flow of air due to negative pressure in the air supply path. As a result, the wind force distribution in the air supply path can be improved. Due to the improved wind force distribution, the temperature of the air can be adjusted approximately equally in the first heat exchanger.
As a result, in the present invention, a large-sized blower fan is eliminated, and a flow path for equalizing the air volume distribution becomes unnecessary. By shortening the air supply path, the air conditioning duct can be miniaturized. Even if the air conditioning duct is installed indoors, the occupied volume of the indoor space can be reduced.
On the other hand, in the conventional air conditioner for vehicles, the large-sized blower fan is provided at the inlet of the air supply path. In addition, it is necessary to secure a flow path length for making the air volume distribution of positive pressure generated by the large blower fan uniform between the blower fan and the heat exchanger. As a result, the air conditioning duct becomes larger.

FIG. 1 is a side view showing an automobile equipped with a vehicle air conditioner device. FIG. 2 is a schematic diagram of a general air conditioner for a vehicle mounted on a car. FIG. 3 is a schematic diagram showing the air conditioner for a vehicle according to the first embodiment of the present invention. FIG. 4 is a schematic diagram of an air conditioner for a vehicle according to a second embodiment of the present invention. FIG. 5 is a schematic diagram of an air conditioner for a vehicle according to a third embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described based on the drawings.

First Embodiment
FIG. 1 is a side view showing an automobile 1 on which an air conditioner for a vehicle is mounted. The car 1 is an example of a vehicle.
The automobile 1 of FIG. 1 has a vehicle body. In the vehicle body, a front chamber 2, a passenger compartment 3 and a rear chamber 4 are defined from the front side.
A power source such as an engine or a motor is disposed in the front chamber 2 which is the front of the vehicle body.
The rear room 4 is used as a cargo room.
The passenger compartment 3 is a room where a driver of the automobile 1 or the like gets on. In the passenger compartment 3, for example, a dashboard 11, a steering wheel, and a plurality of seats 12 are disposed. The plurality of seats 12 are arranged on the floor surface of the passenger compartment 3 side by side in two rows. The dashboard 11 is disposed at the front of the passenger compartment 3. The windshield 13 is located on the upper side of the dashboard 11. A plurality of door panels 14 are attached to the left and right sides of the front and rear two rows of seats 12 so as to be openable and closable. A side glass 15 is disposed on the top of the door panel 14. A rear glass is positioned above the rear seat 12. Thus, a plurality of glasses are disposed at the top of the passenger compartment 3. The driver can look around the automobile 1 from the passenger compartment 3. Further, the lower part of the passenger compartment 3 is surrounded by the vehicle body and the plurality of door panels 14.

FIG. 2 is a schematic diagram of a general air conditioner 100 for a vehicle mounted on a car 1.
The general air conditioner 100 for vehicles adjusts the temperature of the passenger compartment 3.
The general air conditioner 100 for a vehicle shown in FIG. 2 includes, for example, the air conditioning duct 21, the blower fan 31, the evaporator 32, the refrigerant circulating device 33, the heater 34, the heating medium circulating device 35, the switching plate 36, and the first opening and closing plate 37. , The second opening and closing plate 38, and the third opening and closing plate 39.

The air conditioning duct 21 is formed in a hollow structure by a resin material. The air conditioning duct 21 has a plurality of suction paths for sucking air, an installation space 24 for the blower fan 31, an air supply path 25 through which the air passes, and a plurality of blowoff paths for blowing out the air. The plurality of suction passages, the installation space 24 of the blower fan 31, the air supply passage 25, and the plurality of blowoff passages are in communication in the air conditioning duct 21 in order. The air conditioning duct 21 is generally accommodated and arranged in the dashboard 11 of the passenger compartment 3.
The plurality of suction passages include, for example, an outer suction passage 22 for sucking air outside the passenger compartment 3 and an inner suction passage 23 for sucking air inside the passenger compartment 3. The outer suction passage 22 opens, for example, to the front chamber 2. In this case, the external suction passage 22 is drawn from the front chamber 2 into the passenger compartment 3. The inner suction passage 23 opens at the lower surface of the dashboard 11 of the passenger compartment 3, for example.
The plurality of blowoff paths are a glass blowout path 26 that blows air toward the windshield 13 and the side glass 15, a body blowout path 27 that blows air toward the upper body of the occupant, and blows air toward under the foot of the occupant There is an outlet path 28 for the foot. The glass outlet 26 has, for example, three glass outlets for blowing air toward the windshield 13 and the left and right side glasses 15. The glass outlet is formed, for example, on the upper surface of the dashboard 11 and blows air upward. The upper body outlet 27 has, for example, three upper body outlets. For example, the three upper body air outlets are formed side by side in the left and right direction on the rear surface of the dashboard 11, and blow out air in a backward direction. The underfoot outlet 28 has, for example, a plurality of underfoot outlets. The plurality of underfoot air outlets are formed, for example, on the lower surface of the dashboard 11 and under the seat 12, and blow air backward. In this case, the glass blowing passage 26 and the upper body blowing passage 27 are upper blowing passages for blowing air to the upper part of the passenger compartment 3, and the underfoot blowing passages 28 are lower blowing members for blowing air to the lower part of the passenger compartment 3. It is a road.

  The blower fan 31 has, for example, a sirocco fan. The blower fan 31 sucks air into the air supply passage 25 of the air conditioning duct 21 and blows out the sucked air from the air supply passage 25 to the passenger compartment 3 to generate a flow of air in the air conditioning duct 21. In the case of the installation space 24 of FIG. 2, the blower fan 31 sucks air from the outer suction passage 22 or the inner suction passage 23 on the paper surface and discharges the air downward on the paper surface. The air flow downward in the drawing flows into the air supply path 25. As a result, in the air supply passage 25 extending in the left-right direction of the drawing, a flow of air from the left to the right is generated.

The evaporator 32 removes surrounding heat by liquefying the vaporized refrigerant. The evaporator 32 is disposed at a position near the installation space 24 of the blower fan 31 in the air supply passage 25. The evaporator 32 is disposed to entirely block the air supply passage 25.
The refrigerant circulating device 33 supplies the vaporized refrigerant to the evaporator 32, and recovers the refrigerant liquefied by the evaporator 32. The refrigerant circulation device 33 is, for example, a device in which a compressor, a condenser, a receiver, and a vaporization valve are annularly connected by piping. In this circulation path, the refrigerant is circulated by the operation of the compressor. Further, the evaporator 32 is connected between the vaporization valve and the on-off valve by a branch pipe. The refrigerant body vaporized by the vaporization valve is supplied to the evaporator 32.
Thus, the air in the air supply passage 25 is cooled by the evaporator 32. The cooling performance by heat exchange in the evaporator 32 can be adjusted by the amount of refrigerant to be circulated to the evaporator 32, that is, by the operation of the compressor.

The heater 34 applies heat to the surroundings by the heated warm medium. The heater 34 is disposed in the air supply passage 25 between the evaporator 32 and the plurality of blowoff passages. Further, the heater 34 is arranged to block a part of the air supply path 25. In general, the heater 34 is disposed to close the upper half of the air supply passage 25.
The heating medium circulating device 35 supplies the heating medium warmed by the power source of the automobile 1 to the heater 34, and recovers the heating medium circulated through the heater 34. The heat medium circulation device 35 is, for example, a device in which a cooling path of an engine, a radiator, a pump, and a heater 34 are annularly connected by piping. In this circulation path, the pump is operated to circulate a liquid hot medium. As the engine heats up due to the combustion heat, the temperature of the hot medium rises. The heated warm medium flows to the heater 34.
Thus, the air in the air supply passage 25 is cooled by the heater 34. The heating performance by heat exchange at the heater 34 can be adjusted by the amount of refrigerant to be circulated to the heater 34, that is, by the operation of the pump.

  The switching plate 36 is disposed in the air supply passage 25 between the evaporator 32 and the heater 34. The switching plate 36 is disposed so as to be vertically movable in the air supply passage 25. The switching plate 36 blocks the upper portion of the air supply passage 25 and blocks the lower portion of the air supply passage 25. Thus, the amount of air supplied to the heater 34 can be adjusted for the air flowing in the air supply passage 25.

The first opening and closing plate 37, the second opening and closing plate 38, and the third opening and closing plate 39 are disposed in the air supply passage 25 at portions communicating with the plurality of blowoff passages.
The first opening and closing plate 37 is disposed at a communicating portion with the glass blowing passage 26. The communication port with the glass outlet 26 can be closed by the first opening and closing plate 37. In this case, the air does not blow out from the glass blowing passage 26.
The second opening and closing plate 38 is disposed in the communication portion with the body outlet 27. The communication port with the body outlet 27 can be closed by the second opening and closing plate 38. In this case, the air does not blow out from the body outlet 27.
The third opening and closing plate 39 is disposed at a communicating portion with the foot discharge passage 28. The third opening and closing plate 39 can close the communication port with the underfoot outlet 28. In this case, the air does not blow out from the underfoot blowing passage 28.

In such a general air conditioner 100 for a vehicle, when the blower fan 31 operates, air is sucked from one of the suction passages, and the air is compressed and pushed out from the blower fan 31 to the air supply passage 25. Air in the air supply passage 25 passes through the evaporator 32 and the heater 34 and is blown out into the passenger compartment 3 from the plurality of blowoff passages.
Then, with the heat medium circulating in the heater 34, the switching plate 36 blocks the lower part of the air supply passage 25, whereby most of the air flowing in the air supply passage 25 is heated by the heater 34. The temperature of the air blown into the passenger compartment 3 rises.
Further, when the refrigerant is circulated to the evaporator 32, most of the air flowing in the air supply passage 25 is cooled by the evaporator 32. The temperature of the air blown into the passenger compartment 3 is lowered.
Thus, the general air conditioner 100 for a vehicle can adjust the room temperature of the passenger compartment 3.

However, in such a general vehicle air conditioner 100, in order for the air in the air supply passage 25 of the air conditioning duct 21 to be temperature-controlled as a whole, the air flow in the air supply passage 25 is It is desirable to be uniform.
On the other hand, the flow of air in the air supply passage 25 of the air conditioning duct 21 generated by the blower fan 31 is large at the center of the flow of air from the installation space 24 to the air supply passage 25 and It has a smaller distribution. In particular, the air flow immediately after blowing from the installation space 24 of the blower fan 31 is uneven.
As a result, in the air supply path 25 of the air conditioning duct 21, it is necessary to provide a flow path of a certain length between the installation space 24 of the blower fan 31 and the evaporator 32. The air conditioning duct 21 is increased in size accordingly. The occupied volume of the air conditioning duct 21 in the passenger compartment 3 is increased.
So, in this embodiment, the enlargement of the air-conditioning duct 21 is suppressed. Thereby, even if the air conditioning duct 21 is installed in the passenger compartment 3 of the automobile 1, the occupied volume of the air conditioning duct 21 in the passenger compartment 3 is suppressed.
Details will be described below.

FIG. 3 is a schematic block diagram of the air conditioner 20 for a vehicle according to the first embodiment of the present invention.
In the air conditioner 20 for a vehicle according to the present embodiment, the air conditioning duct 21 includes an outer suction passage 22, an inner suction passage 23, an air supply passage 25, a glass outlet passage 26, a body outlet passage 27, and a foot outlet passage. 28. The outer suction passage 22 and the inner suction passage 23 are directly connected to the air supply passage 25.
In the air conditioning duct 21, a first heat exchanger 41, a first outlet fan 81, a first outlet shutter 82, a second outlet fan 83, a second outlet shutter 84, a third outlet fan 85, a third An outlet shutter 86 is disposed.
Further, the air conditioner 20 for a vehicle according to the present embodiment includes a first heat insulation tank 43 for storing the first intermediate medium 42, a second heat insulation tank 53 for storing the first circulation passage 44, and the second intermediate medium 52, The second circulation passage 54, the evaporator 32, the refrigerant circulation device 33, the heater 34, the heating medium circulation device 35, the electric heater 45, and the control unit 60 are provided.

The first outlet channel fan 81 and the first outlet channel shutter 82 are disposed in the glass outlet channel 26. The first blowing passage fan 81 draws air from the air supply passage 25 into the glass blowing passage 26 and blows air from the glass blowing passage 26. The first outlet path shutter 82 closes the glass outlet path 26. Thus, the flow of air from the air supply passage 25 to the glass blowing passage 26 is stopped.
The second outlet path fan 83 and the second outlet path shutter 84 are disposed in the body outlet path 27. The second blowoff path fan 83 draws air from the air supply path 25 into the body blowout path 27 and blows air from the body blowout path 27. The second outlet path shutter 84 closes the body outlet path 27. Thereby, the flow of the air from the air supply passage 25 to the blowout passage 27 for upper body stops.
The third outlet channel fan 85 and the third outlet channel shutter 86 are disposed in the foot outlet channel 28. The third blowoff passage fan 85 draws air from the air supply passage 25 into the toe blowout passage 28 and blows air from the toe blowout passage 28. The third outlet path shutter 86 closes the foot outlet path 28. Thereby, the flow of air from the air supply passage 25 to the outlet passage 28 is stopped.
As described above, when the plurality of blowoff path fans disposed downstream of the air conditioning duct 21 operate, air is drawn from the air supply path 25, and a flow of air due to negative pressure is generated in the air supply path 25. Be done. The negative pressure air flow produces a substantially uniform flow in the air supply passage 25. Then, air flows from the outer suction passage 22 or the inner suction passage 23 into the air supply passage 25.

The first heat insulation tank 43 has a closed internal space for containing the first intermediate medium 42. The first heat insulation tank 43 is formed in a heat insulation structure that maintains the temperature of the first intermediate medium 42. The first heat insulation tank 43 is disposed, for example, in the front chamber 2 of the automobile 1.
The first intermediate medium 42 is a heat medium. The first intermediate medium 42 may be, for example, a coolant.
The evaporator 32, the heater 34 and the electric heater 45 are disposed in the first adiabatic tank 43.
The refrigerant circulating device 33 is connected to the evaporator 32 and supplies the refrigerant to the evaporator 32. The refrigerant circulating device 33 circulates the refrigerant by driving the compressor, for example, and supplies the refrigerant to the evaporator 32.
The heating medium circulation device 35 is connected to the heater 34 and supplies the refrigerant to the heater 34. The heating medium circulation device 35 circulates the heating medium warmed by the heat generation of the power source and supplies it to the heater 34 by driving of a pump, for example.
Electric heater 45 constitutes, for example, a closed loop with battery 46 and switch 47. When the switch 47 is closed, the electric heater 45 is energized to generate heat.
The first intermediate medium 42 in the first adiabatic tank 43 can be cooled by heat exchange with the refrigerant body of the evaporator 32. Further, the first intermediate medium 42 in the first heat insulation tank 43 is warmed by heat exchange with the warm medium of the heater 34 or heat generation of the electric heater 45.
The first heat exchanger 41 is disposed in the air supply passage 25 so as to entirely block the air supply passage 25. The first heat exchanger 41 may be formed, for example, in the structure of a heat exchanger similar to the heater 34.
The first circulation path 44 connects the first heat insulation tank 43 and the first heat exchanger 41.

The second heat insulation tank 53 has a closed internal space that accommodates the second intermediate medium 52. The second heat insulation tank 53 is formed in a heat insulation structure that maintains the temperature of the second intermediate medium 52. The second heat insulation tank 53 is disposed, for example, in the front chamber 2 of the automobile 1.
The second intermediate medium 52 is a heat medium. The second intermediate medium 52 may be, for example, a coolant.
The evaporator 32, the heater 34 and the electric heater 45 are disposed in the second heat insulation tank 53.
The refrigerant circulating device 33 is connected to the evaporator 32 and supplies the refrigerant to the evaporator 32. The refrigerant circulating device 33 circulates the refrigerant by driving the compressor, for example, and supplies the refrigerant to the evaporator 32.
The heating medium circulation device 35 is connected to the heater 34 and supplies the refrigerant to the heater 34. The heating medium circulation device 35 circulates the heating medium warmed by the heat generation of the power source and supplies it to the heater 34 by driving of a pump, for example.
Electric heater 45 constitutes, for example, a closed loop with battery 46 and switch 47. When the switch 47 is closed, the electric heater 45 is energized to generate heat.
The second intermediate medium 52 in the second adiabatic tank 53 can be cooled by heat exchange with the refrigerant body of the evaporator 32. In addition, the second intermediate medium 52 in the second heat insulation tank 53 is warmed by heat exchange with the warm medium of the heater 34 or by heat generation of the electric heater 45.
The second heat exchanger 51 is disposed in the air supply passage 25 so as to entirely block the air supply passage 25. The second heat exchanger 51 may be formed, for example, in the structure of a heat exchanger similar to the heater 34.
The second circulation passage 54 connects the second heat insulation tank 53 and the second heat exchanger 51.
In FIG. 3, for convenience of illustration, the refrigerant circulation device 33, the heating medium circulation device 35 and the battery 46 on the first heat insulation tank 43 side, the refrigerant circulation device 33 on the second insulation tank 53 side, and the heating medium circulation device 35. And the battery 46 are illustrated separately, they may be made common.

  The control unit 60 controls the operation of the vehicle air conditioner 20 in order to air-condition the passenger compartment 3.

  The control unit 60 controls the flow of air in the air conditioning duct 21. For example, the operation / stop of the first outlet fan 81, the opening / closing of the first outlet shutter 82, the operation / stop of the second outlet fan 83, the opening / closing of the second outlet shutter 84, the operation of the third outlet fan 85 / The stop and the opening and closing of the third outlet shutter 86 are controlled. The air supply passage 25 of the air conditioning duct 21 becomes negative pressure by operation of any one blowoff passage fan, and air flows from the outer suction passage 22 or the inner suction passage 23 toward the blowout port.

In addition, the control unit 60 controls the supply of the refrigerant and the heating medium to the first heat insulation tank 43, controls the energization of the electric heater 45 in the first heat insulation tank 43, and The supply of the first intermediate medium 42 to the exchanger 41 is controlled. Thereby, the first intermediate medium 42 in the first heat insulation tank 43 is controlled to the temperature required to bring the interior of the passenger compartment 3 into a desired temperature. The warmed first intermediate medium 42 circulates between the first heat insulation tank 43 and the first heat exchanger 41. In the first heat exchanger 41, heat exchange is performed between the warmed first intermediate medium 42 and the air in the air conditioning duct 21. Air warmed to bring the interior of the passenger compartment 3 to a desired temperature is blown out from the air conditioning duct 21 to the passenger compartment 3. The temperature of the passenger compartment 3 is adjusted.
In the temperature control operation, the control unit 60 may control the first intermediate medium 42 to a temperature required to bring the interior of the passenger compartment 3 into a desired temperature. For example, when the temperature difference between the current temperature of the passenger compartment 3 and the target temperature of the passenger compartment 3 is large, the control unit 60 operates the heater 34 and the electric heater 45 to make the first intermediate medium 42 more than the target temperature of the passenger compartment 3 The temperature may be controlled to a high temperature, and then the first intermediate medium 42 may be controlled to the target temperature of the passenger compartment 3. By controlling the first intermediate medium 42 at least to the target temperature of the passenger compartment 3, the air blown into the passenger compartment 3 can be made the target temperature of the passenger compartment 3. In order to lower the temperature of the first intermediate medium 42 which has become too high, the refrigerant body may be supplied to the first adiabatic tank 43. By controlling the first intermediate medium 42 to the target temperature of the passenger compartment 3, the temperature of the passenger compartment 3 can be controlled to the target temperature.
Specifically, for example, the control unit 60 may control the temperature of the first intermediate medium 42 to a target temperature within a range of 10 degrees to 30 degrees which is a desired temperature in the passenger compartment 3. Thereby, the temperature of the air heat-exchanged with the first intermediate medium 42 is controlled to the target temperature.

  Besides, for example, when the passenger compartment 3 is to be dehumidified, the control unit 60 further controls the supply of the refrigerant and the heating medium to the second heat insulation tank 53, and the electric heater 45 is energized in the second heat insulation tank 53. To control the supply of the second intermediate medium 52 from the second adiabatic tank 53 to the second heat exchanger 51. Thereby, the second intermediate medium 52 in the second heat insulation tank 53 is cooled to such an extent that the second intermediate medium 52 does not freeze. The cooled second intermediate medium 52 circulates between the second adiabatic tank 53 and the second heat exchanger 51. In the second heat exchanger 51, heat exchange is performed between the cooled second intermediate medium 52 and the air in the air conditioning duct 21. The air in the air conditioning duct 21 is cooled by the second heat exchanger 51 and dehumidified, and then reheated by the first heat exchanger 41 and blown out to the passenger compartment 3. The passenger compartment 3 is dehumidified.

As described above, in the present embodiment, the first intermediate medium 42 is provided in the air conditioning duct 21 after being controlled to the temperature required to bring the interior of the passenger compartment 3 of the vehicle to a desired temperature. It is supplied to the first heat exchanger 41. Therefore, the interior of the vehicle can be adjusted to a desired temperature by adjusting only the first heat exchanger 41. Further, the air supplied into the room can be dehumidified by the second heat exchanger 51 provided on the upstream side of the first heat exchanger 41.
Further, in the present embodiment, a plurality of outlet path fans are provided corresponding to the outlet paths of the plurality of air from the air supply path 25. Therefore, for example, it is possible to adjust the flow rate to be blown out for each blow-off path, and it becomes possible to realize fine air conditioning control.
In addition, a flow of air due to a negative pressure is generated in the air supply passage 25 by the plurality of blowoff passage fans corresponding to the plurality of discharge passages. The wind force distribution in the air supply passage 25 is improved. Due to the improved wind distribution, the temperature of the air can be adjusted approximately equally in the first heat exchanger 41. As a result, it is not necessary to provide the large-sized blower fan 31 at the inlet of the air supply path 25 as in a general air conditioner 100 for a vehicle. In addition, it is not necessary to secure a flow path length for equalizing the flow of air between the large-sized blower fan 31 and the heat exchanger. As a result, in the present embodiment, the air conditioning duct 21 can be miniaturized by eliminating the large-sized blower fan 31 and shortening the flow path length of the air supply path 25. Even if the air conditioning duct 21 is installed in the passenger compartment 3, it is difficult to narrow the space in the passenger compartment 3.

  Further, in the present embodiment, the blowout from the plurality of blowout paths can be controlled individually for each of the blowout paths by the plurality of blowout path shutters provided in the blowout path. As a result, it is not necessary to provide an open / close plate for opening and closing the flow path in the air supply path 25 as in the general air conditioner 100 for a vehicle. As a result, the air conditioning duct 21 can be miniaturized. Even if the air conditioning duct 21 is installed in the passenger compartment 3, it is difficult to narrow the space in the passenger compartment 3.

Second Embodiment
FIG. 4 is a schematic diagram showing the air conditioner 20 for a vehicle according to the second embodiment of the present invention.
The air conditioner 20 for a vehicle shown in FIG. The air conditioning duct 21 has an outer suction passage 22, an inner suction passage 23, an air supply passage 25, a glass outlet passage 26, a body outlet passage 27, and a foot outlet passage 28.

  The air conditioning duct 21 includes a second heat exchanger 51, a first heat exchanger 41, a third heat exchanger 48, a first outlet shutter 82, a second outlet fan 83, and a second outlet shutter 84, The third outlet channel fan 85 and the third outlet channel shutter 86 are disposed.

  Further, the first heat exchanger 41 is connected to the first heat insulation tank 43 containing the first intermediate medium 42 by the first circulation path 44. In the first heat insulation tank 43, an evaporator 32, a heater 34, and an electric heater 45 are disposed. The evaporator 32 cools the first intermediate medium 42 by the circulation of the refrigerant by the refrigerant circulation device 33. The heater 34 warms the first intermediate medium 42 by circulating the warm medium by the warm medium circulation device 35. The electric heater 45 constitutes a closed loop with the battery 46 and the switch 47.

  The second heat exchanger 51 is connected to a second heat insulation tank 53 containing the second intermediate medium 52 by the second circulation passage 54. In the second heat insulation tank 53, the evaporator 32, the heater 34, and the electric heater 45 are disposed. The evaporator 32 cools the second intermediate medium 52 by the circulation of the refrigerant by the refrigerant circulation device 33. The heater 34 warms the second intermediate medium 52 by circulating the warm medium by the warm medium circulation device 35. The electric heater 45 constitutes a closed loop with the battery 46 and the switch 47. The refrigerant circulation device 33, the heating medium circulation device 35, the battery 46, and the like may be shared with those of the first heat exchanger 41.

The third heat exchanger 48 may have the same structure as the first heat exchanger 41. The third heat exchanger 48 is located below the first heat exchanger 41 in the air supply passage 25.
The third heat exchanger 48 is connected to the first heat insulation tank 43 containing the first intermediate medium 42 by the third circulation passage 49.
The components of the vehicle air conditioner device 20 are connected to the control unit 60 and controlled by the control unit 60.

  The other configuration of the air conditioner 20 for a vehicle shown in FIG. 4 is the same as that of the air conditioner 20 for a vehicle shown in FIG.

Then, in such a vehicle air conditioner device 20, the control unit 60 executes control for air conditioning the passenger compartment 3.
The control unit 60 controls the flow of air in the air conditioning duct 21, controls the supply of the refrigerant and the heating medium to the first heat insulation tank 43, and controls the energization of the electric heater 45 in the first heat insulation tank 43, The supply of the first intermediate medium 42 from the first adiabatic tank 43 to the first heat exchanger 41 is controlled. In addition, the control of the supply of the refrigerant and the heating medium to the second adiabatic tank 53 is controlled, and the energization of the electric heater 45 in the second adiabatic tank 53 is controlled, and the second adiabatic tank 53 to the second heat exchanger 51 is controlled. The supply of the second intermediate medium 52 is controlled. In addition, the supply of the first intermediate medium 42 from the first heat insulation tank 43 to the third heat exchanger 48 is controlled.

For example, when the temperature of the passenger compartment 3 is low, the control unit 60 supplies the warm medium to the first heat insulation tank 43 without operating the second heat insulation tank 53. When the power source of the automobile 1 is stopped or not warmed, the electric heater 45 is energized. As a result, the first intermediate medium 42 in the first heat insulation tank 43 is warmed to the temperature required to bring the interior of the passenger compartment 3 to a desired temperature. Further, the control unit 60 circulates the warmed first intermediate medium 42 between the first heat insulation tank 43 and the first heat exchanger 41, and the control unit 60 mixes the first heat insulation tank 43 and the third heat exchanger 48. Circulates between. In the first heat exchanger 41 and the third heat exchanger 48, heat exchange is performed between the warmed first intermediate medium 42 and the air in the passenger compartment 3, and the warmed air is blown out to the passenger compartment 3. Be done. As a result, the passenger compartment 3 is warmed.
The same applies to the case of cooling and the case of dehumidifying.

  Then, in the present embodiment, the first heat exchanger 41 and the third heat exchanger 48 are arranged vertically in the air supply path 25 of the air conditioning duct 21. Therefore, the control unit 60 makes the air conditioning duct 21 different from the flow rate of the first intermediate medium 42 in the first heat exchanger 41 and the flow rate of the first intermediate medium 42 in the third heat exchanger 48. It is possible to give a temperature difference to the air blown out from the For example, by flowing the first intermediate medium 42 more than the first heat exchanger 41 to the third heat exchanger 48, the temperature of the air passing through the third heat exchanger 48 passes the first heat exchanger 41. Higher than the air temperature. For example, without reducing the amount of heat supplied to the passenger compartment 3, the temperature of the air striking the occupant's face can be lowered to suppress discomfort. The same applies to dehumidification.

Third Embodiment
FIG. 5 is a schematic diagram of the air conditioner 20 for a vehicle according to the third embodiment of the present invention.
The air conditioner 20 for vehicles shown in FIG. 5 has a configuration in which an indoor circulation passage 71 is added to the air conditioner shown in FIG.

The indoor circulation passage 71 is a circulation passage that circulates the first intermediate medium 42 in the passenger compartment 3. The indoor circulation passage 71 is provided, for example, between the first heat insulation tank 43 and the seat 12 of the passenger compartment 3. The seat 12 in the passenger compartment 3 is directly warmed by the first intermediate medium 42 which has been warmed to the temperature required to bring the interior of the passenger compartment 3 to the desired temperature.
In addition to this, for example, the indoor circulation passage 71 may be embedded in a side panel, a roof panel or the like that defines the passenger compartment 3.

  The other configuration of the air conditioner 20 for a vehicle shown in FIG. 5 is the same as that of the air conditioner 20 for a vehicle shown in FIG. 3, and the same reference numerals are used to omit the description thereof.

  And in this embodiment, the installation of crew room 3 can be warmed by indoor circulation way 71 directly. In the prior art, it was not possible to heat the equipment of the passenger compartment 3 directly unless a special heater or the like was added separately from the general air conditioner 100 for a vehicle, but the air conditioner for a vehicle The device 20 makes it possible to heat the installation of the passenger compartment 3 directly.

  Each of the above embodiments is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications or changes can be made without departing from the scope of the invention. .

For example, in the above embodiment, the evaporator 32 of the first heat insulation tank 43 is supplied with a refrigerant body from the refrigerant circulation device 33 which functions by being driven by the power source of the automobile 1. Further, the heater 34 is supplied with a warm medium from a warm medium circulation device 35 which functions by being driven by the power source of the automobile 1.
Besides, for example, the refrigerant circulation device 33 or the heat medium circulation device 35 may be driven by another engine or battery of the automobile 1.

The above embodiment is an example where the present invention is applied to a car 1.
Besides this, for example, the present invention can be applied to vehicles other than automobiles, such as trains.

1 ... car (vehicle)
2 ... front room 3 ... crew room (room of vehicle)
4 ... rear room 11 ... dashboard 12 ... seat 13 ... windshield 14 ... door panel 15 ... side glass 20 ... air conditioning device 21 for vehicles ... air conditioning duct 22 ... outside suction path 23 ... inside suction path 24 ... installation space 25 ... air Supply path 26: Blowing path for glass (upper blowing path, blowing path)
27 ··· Body air outlet (upper outlet, outlet)
28 ... Out-of-foot outlet (lower outlet, outlet)
31 ... blower fan 32 ... evaporator 33 ... refrigerant circulation device 34 ... heater 35 ... heat medium circulation device 36 ... switching plate 37 ... first opening and closing plate 38 ... second opening and closing plate 39 ... third opening and closing plate 41 ... first heat exchanger 42 ... 1st intermediate medium 43 ... 1st heat insulation tank (1st tank)
44 first circulation path 45 electric heater 46 battery 47 switch 48 third heat exchanger 49 third circulation path 51 second heat exchanger 52 second intermediate medium 53 second heat insulation tank (second) Two tanks)
54 second circulation passage 60 control unit 71 indoor circulation passage 81 first outlet passage fan (outlet passage fan)
82 ... First outlet shutter (outlet shutter)
83 ... second outlet fan (outlet fan)
84 ... second outlet shutter (outlet shutter)
85: Third outlet fan (outlet fan)
86 ... Third outlet shutter (outlet shutter)
100 ... Air conditioner for vehicles

Claims (4)

An air supply passage through which air supplied to the interior of a vehicle passes, and an air conditioning duct in which a plurality of outlet passages communicating with the air supply passage are formed;
A plurality of outlet path fans provided in the plurality of outlet paths and adjusting the flow rate of air blown out from the plurality of outlet paths;
A first tank containing a first intermediate medium and supplied with a refrigerant and a heating medium for adjusting the temperature of the first intermediate medium;
A second tank containing a second intermediate medium and supplied with a refrigerant and a heating medium for adjusting the temperature of the second intermediate medium;
A first heat exchanger provided in the air conditioning duct, the first intermediate medium circulating from the first tank, and performing heat exchange with air;
A second heat exchanger provided in the air conditioning duct, the second intermediate medium circulating from the second tank, and performing heat exchange with air, the second heat exchanger being different from the first heat exchanger;
A control unit configured to control the first intermediate medium accommodated in the first tank and the second intermediate medium accommodated in the second tank to a temperature required to bring the room to a desired temperature; ,
Have
Air conditioner for vehicles. A plurality of outlet path shutters provided in the plurality of outlet paths and opening and closing the plurality of outlet paths;
The air conditioner apparatus for vehicles of Claim 1. The second heat exchanger is provided in the air conditioning duct upstream of the first heat exchanger,
The control unit controls the second intermediate medium to a dehumidifying temperature.
The air conditioner apparatus for vehicles of Claim 2 . It has an indoor circulation path that circulates the first intermediate medium between the first tank and the room of the vehicle.
The air conditioner device for vehicles according to any one of claims 1 to 3 .

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