JP5859214B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner.

In vehicle air conditioners, HVAC (Heating, Ventilating and Air-Conditioning) modules in which a blower, an evaporator of a refrigeration cycle, and a heater core are sequentially arranged along an air flow path are widely used.
In this vehicle air conditioner, an air mix damper that separates air that passes through the heater core and air that does not pass through the heater core is generally provided on the upstream side of the heater core. By adjusting the opening of this air mix damper, it is possible to adjust the amount of hot air that is sent from the blower and cooled by the evaporator through the heater core and the amount of cold air that bypasses the heater core. The temperature of the blown out air is adjusted.

In addition, in a vehicle air conditioner equipped with an air mix damper, since it is a two-layer flow of warm air and cold air, for example, when blowing simultaneously to the foot and the head, the temperature of the air blown to the foot is changed to the head side It is possible to achieve an air-conditioning state such as so-called “head cold foot heat” that is higher than that of the head.
On the other hand, in this vehicle air conditioner, since a space for operating the air mix damper is required, the length of the air passage is particularly long, and the entire vehicle air conditioner becomes large.

In order to reduce the size of a vehicle air conditioner, for example, as disclosed in Patent Document 1, a device that does not use an air mix damper has been proposed.
In this method, the evaporator and the heater core are connected in series, that is, all the air that has passed through the evaporator passes through the heater core, and the temperature is adjusted by adjusting the flow rate of hot water supplied to the heater core.
Further, in Patent Document 1, the width in the air circulation direction of at least one of the evaporator and the heater core is changed along the vertical direction so that a so-called "head cold foot heat" air conditioning state can be easily created. Specifically, the width of the evaporator is increased to increase the cooling amount as it goes upward, or the width of the heater core is decreased as it goes upward, and the heating amount is decreased as it goes upward.

JP-A-9-323526

  However, in the vehicle air conditioner disclosed in Patent Document 1, since the width of the evaporator or the heater core in the air flow direction is changed along the vertical direction, these side surfaces are trapezoidal special shapes. Yes. It is difficult to manufacture an evaporator or a heater core having such a special shape, and there is a problem that the cost is increased.

  In view of such circumstances, the present invention provides a vehicle air conditioner that can reduce the overall size of the apparatus and that can easily obtain an air-conditioning state of head cold foot heat and that can suppress an increase in cost by using a heat exchanger having a normal shape. The purpose is to provide.

In order to solve the above-described problems, the present invention employs the following means.
That is, according to one aspect of the present invention, an evaporator and a radiator are arranged in series along an air flow path, and an up-and-down distribution that vertically distributes conditioned air that has been air-conditioned through the evaporator and the radiator. The air conditioner for a vehicle provided with a damper, wherein the heat radiator is supplied with a heat medium whose flow rate and temperature can be adjusted from the lower side of one side, flows to the other side, and the other side When the upper and lower distribution damper is at an intermediate position for supplying the conditioned air both vertically, it is supplied to the radiator. The air conditioner for vehicles is controlled so as to reduce the flow rate of the heat medium and to increase the temperature.

According to this aspect, since the evaporator and the radiator are arranged in series along the air flow path, almost all of the air cooled by the evaporator is heated and air-conditioned through the radiator. Air-conditioned air. At this time, since the heat medium whose flow rate and temperature can be adjusted is supplied to the radiator, the amount of heat supplied by the radiator can be adjusted by adjusting the flow rate and temperature of the heat medium. The temperature can be adjusted.
Therefore, since it is not necessary to use the air mix damper used conventionally, the space for operating an air mix damper can be omitted, and the whole apparatus can be reduced in size.

Further, the heat radiator is configured such that the heat medium is supplied from the lower side and discharged from the upper side. Therefore, the heat medium moves from the lower side to the upper side while the amount of heat is taken away by the air. For this reason, the temperature gradient of the temperature of the heat medium is generated such that the temperature on the lower side is higher and the temperature is lowered toward the upper side.
In this aspect, when the vertical distribution damper is at the intermediate position for supplying the conditioned air both vertically, the flow rate of the heat medium supplied to the radiator is reduced, so the heat capacity of the heat medium decreases. When the heat capacity of the heat medium decreases, the temperature drop when heat is absorbed by air increases, so the temperature gradient increases further, and the temperature difference between the temperature of the lower heat medium and the temperature of the upper heat medium is increased. growing.
Therefore, the air passing through the lower side of the radiator has a large temperature difference, so that the temperature is higher. On the other hand, the air passing through the upper side of the radiator is lower, because the temperature difference is smaller. In this state, the conditioned air that has exited the heatsink is distributed to the upper side by the up-and-down distribution damper, and the conditioned air having the lower temperature on the upper side is distributed to the upper side. Therefore, it is possible to easily obtain an air-conditioning state of head cold foot heat.

At this time, the amount of heating by the radiator is reduced by reducing the flow rate, but in this aspect, since the temperature of the heat medium supplied to the radiator is controlled to increase, the reduction in the amount of heating is covered. can do. That is, the heating capacity can be maintained by maintaining the same heating amount as usual.
As described above, since the air conditioning state of the cold head heat can be easily obtained in the state where the heating capacity is maintained by reducing the flow rate of the heat medium supplied to the radiator and increasing the temperature, the evaporator and the radiator It is difficult to manufacture and there is no need to use a special shape or structure that causes an increase in cost, and an increase in manufacturing cost can be suppressed.

  In the above aspect, in the space between the radiator and the vertical distribution damper, the flow path from the intermediate position in the vertical direction of the radiator to the vertical distribution damper located in the neutral position is in the vertical direction. It is good also as a structure provided with the guide to divide.

  In this way, the guide is a space between the radiator and the up-and-down distribution damper, and prevents the upper side conditioned air having a relatively low temperature and the lower side conditioned air from being mixed. It is possible to obtain an air-conditioning state of head cold foot heat more reliably.

  In the above configuration, the guide may be swingable in the vertical direction around the radiator side.

In this case, by adjusting the angle of the guide in accordance with the position of the vertical sorting damper, a flow path surface having an arbitrary shape can be formed within a certain range.
Therefore, for example, when there are a plurality of outlets selectively used on the upper side or the lower side, a flow path with less pressure loss can be formed for each outlet.

  In the said aspect, the upstream edge part of the said vertical sorting damper may be comprised so that it may be located in the vicinity of the said heat radiator in the said intermediate position.

In this way, the up-and-down distribution damper prevents the conditioned air having a relatively low temperature on the upper side from mixing with the conditioned air having a relatively low temperature on the lower side, so that an air-conditioned state of head cold foot heat can be obtained more reliably. Can do.
Moreover, the air volume and temperature of the conditioned air distributed up and down can be adjusted by adjusting the vertical position of the upstream end portion of the vertical sorting damper.
Another aspect of the present invention is an up-and-down distribution damper in which an evaporator and a radiator are arranged in series along an air flow path, and the conditioned air conditioned through the evaporator and the radiator is distributed up and down. The radiator is configured such that a heat medium whose flow rate and temperature can be adjusted is supplied from the lower side and discharged from the upper side, and the vertical distribution damper is Controlled to reduce the flow rate of the heat medium supplied to the radiator and to raise the temperature when the intermediate position for supplying the conditioned air to both the upper and lower sides, the radiator and the vertical distribution damper, A space is provided with a guide that vertically divides the flow path from an intermediate position in the vertical direction of the radiator to the vertical damper located in the neutral position. Up and down It is a vehicle air conditioning apparatus according to claim being swingable.

  According to the vehicle air conditioner of the present invention, the entire apparatus can be reduced in size, and an air-conditioning state of head-and-foot heat can be easily obtained, and an increase in cost can be suppressed by using a heat exchanger having a normal shape.

It is a schematic block diagram of the vehicle air conditioner concerning 1st embodiment of this invention. It is a perspective view which shows the heater core of FIG. It is a flowchart which shows a part of control flow in this embodiment. It is a fragmentary sectional view which shows the downstream of an airflow path. It is a fragmentary sectional view which shows the downstream of an airflow path. It is a fragmentary sectional view which shows the downstream of an airflow path. It is a fragmentary sectional view which shows the downstream of the air flow path of the vehicle air conditioner concerning 2nd embodiment of this invention. It is a fragmentary sectional view which shows the downstream of the air flow path of the vehicle air conditioner concerning 3rd embodiment of this invention. It is a fragmentary sectional view which shows the downstream of the airflow path in this embodiment. It is a fragmentary sectional view which shows the downstream of the airflow path in this embodiment. It is a fragmentary sectional view which shows the downstream of the airflow path of the vehicle air conditioner concerning 4th embodiment of this invention. It is a fragmentary sectional view which shows the downstream of the airflow path in this embodiment.

Embodiments according to the present invention will be described below with reference to the drawings.
[First embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 6.
FIG. 1 is a schematic configuration diagram of a vehicle air conditioner according to a first embodiment of the present invention. FIG. 2 is a perspective view showing the heater core of FIG.
The vehicle air conditioner 1 according to the present embodiment is used for an electric vehicle such as an electric vehicle, a hybrid vehicle, or a fuel cell vehicle.

The vehicle air conditioner 1 is generally called an HVAC (Heating, Ventilating and Air-Conditioning) module, which takes in outside air or air in the vehicle interior and regulates the temperature, and then guides it to the vehicle interior 3 is formed.
Inside the casing 5, the blower 7 that sucks and pressurizes outside air or vehicle interior air sequentially from the upstream side to the downstream side of the air flow passage 3 and pumps it to the downstream side, and the air pumped by the blower 7. An evaporator (evaporator) 9 that cools the air and a heater core (heat radiator) 11 that heats the air that has passed through the evaporator 9 and is cooled are installed.

On the outer surface of the casing 5, on the upstream side of the air flow passage 3, an outside air introduction port 13 that is an air intake for selectively introducing air outside the vehicle compartment (outside air) or air inside the vehicle compartment (inside air) and The inside air inlet 15 is opened. In the following description, the outside air introduced from the outside air introduction port 13 and the inside air introduced from the inside air introduction port 15 are collectively referred to as “introduction air”.

In the casing 5, a def outlet channel 17 for blowing out into the vehicle compartment according to an operation mode in which cold air or hot air (hereinafter referred to as air conditioned air) or the like air-conditioned on the downstream side of the air flow passage 3 is selected. A channel 19 and a foot outlet channel 21 are formed.
The foot blowing channel 21 blows out conditioned air toward the foot of the passenger, in other words, toward the lower side of the passenger compartment.
The face blowing channel 19 blows conditioned air toward the head of the passenger. The differential blowing channel 17 blows conditioned air toward the inside of the windshield, for example.
Therefore, the face blowing channel 19 and the differential blowing channel 17 blow conditioned air toward the upper side of the vehicle interior.

Between the outside air introduction port 13 and the inside air introduction port 15, an inside / outside air switching damper 23 is provided. The inside / outside air switching damper 23 is supported so as to be swingable about one end portion, and is swung by the operation of the motor 25. The inside / outside air switching damper 23 is capable of selectively opening and closing the outside air introduction port 13 and the inside air introduction port 15 by being swung.
A differential / face damper 27 is provided between the differential blowing passage 17 and the face blowing passage 19.
The differential / face damper 27 is supported so as to be swingable around the downstream end, and is swingable by the operation of the motor 29 so that the differential blowout flow path 17 and the face blowout flow path 19 can be selectively opened and closed. It is said that. Further, when the differential / face damper 27 is located at the intermediate position, the conditioned air flows through the differential blowout flow path 17 and the face blowout flow path 19.

A foot damper (vertical sorting damper) 31 is provided at the entrance of the foot outlet passage 21.
The foot damper 31 is supported so as to be able to swing around the downstream end, and is swung by the operation of the motor 33 to select the differential outlet flow path 17, the face outlet path 19 and the foot outlet path 21. It can be opened and closed.
In addition, when the foot damper 31 is located at the intermediate position, the conditioned air flows through the differential blowing channel 17, the face blowing channel 19, and the foot blowing channel 21.
By opening / closing the differential / face damper 27 and the foot damper 31, the air-conditioning air blowing mode can be selectively switched to a face mode, a foot mode, a differential mode, a differential / foot mode, a bi-level mode, and the like.

  The evaporator 9 constitutes a refrigerant circuit together with a compressor, a condenser, an expansion valve, etc., not shown, and cools air passing therethrough by evaporating the refrigerant adiabatically expanded by the expansion valve.

The heater core 11 constitutes a heat medium circulation circuit 41 connected by a heat medium pipe 39 together with the pump 35 and the heat medium heating device 37.
The heat medium heating device 37 is, for example, a PTC (Positive Temperature Coefficient) heater, and the temperature can be adjusted by controlling the amount of current supplied. The pump 35 and the heat medium heating device 37 are mainly driven by a vehicle battery or an external power source.
As the heat medium, for example, an antifreeze such as ethylene glycol is used.

In the heater core 11, as shown in FIG. 2, the heat medium heated to a high temperature by the heat medium heating device 37 is introduced to the lower part of one side through the pump 35, flows to the other side, and flows upward to the other side. It is circulated so as to flow to the one side and to be discharged from the upper part of the one side. In other words, the heat medium enters from the lower part of one side, is turned back by one time on the other side, and flows in one turn from the upper part of one side.
The heater core 11 heats the air passing therethrough with a heat medium flowing inside.
A thermometer 43 that detects the temperature of the heat medium passing through the heat medium pipe 39 is provided at an inlet portion of the heat medium pipe 39 to the heater core 11.

The vehicle air conditioner 1 is provided with a control unit 45 that controls its operation. The control unit 45 has a function of adjusting the positions of the inside / outside air switching damper 23, the differential / face damper 27, and the foot damper 31 by operating the motors 25, 29, 33 in accordance with the air-conditioning air blowing mode.
The control unit 45 has a function of adjusting the cooling amount of the evaporator 9 by controlling the blowing amount of the blower 7 and a refrigerant circuit (not shown).
Further, the control unit 45 has a function of adjusting the temperature of the heat medium by adjusting the flow rate of the heat medium flowing through the heat medium pipe 39 by adjusting the pump 35 and controlling the energization amount of the heat medium heating device 37. ing. In this case, the control unit 45 is configured to control the temperature of the heat medium introduced into the heater core 11 detected by the thermometer 43.

The operation of the vehicle air conditioner 1 configured as described above will be described.
The control unit 45 adjusts the positions of the differential / face damper 27 and the foot damper 31 according to the air-conditioning air blowing mode, for example, the face mode, the foot mode, the differential mode, the differential / foot mode, the bi-level mode, and the like.
FIG. 4 shows a differential / face damper 27 and a foot damper in a face mode (solid line) in which conditioned air is blown from the face blowing channel 19 and in a foot mode (two-dot chain line) in which conditioned air is blown from the foot blowing channel 21. 31 positions are shown. In the face mode or the foot mode, the conditioned air is blown to either the upper side or the lower side of the passenger compartment.

FIG. 5 shows the positions of the differential / face damper 27 and the foot damper 31 in the bi-level mode in which the conditioned air is blown out from the face blowing passage 19 and the foot blowing passage 21.
FIG. 6 shows the positions of the differential / face damper 27 and the foot damper 31 in the differential / foot mode in which the conditioned air is blown out from the differential blowing passage 17 and the foot blowing passage 21.
In the bi-level mode or the differential / foot mode, the conditioned air is blown to the upper side and the lower side of the vehicle interior.

The introduced air introduced from the outside air inlet 13 and / or the inside air inlet 15 is sent to the downstream side along the air flow passage 3 by the blower 7. The introduced air is cooled by the evaporator 9 and then almost entirely passes through the heater core 11, is heat-exchanged with the heat medium passing through the heater core 11, is heated, and is conditioned air.
The control unit 45 adjusts the temperature of the conditioned air by adjusting the amount of heating in the heater core 11 by adjusting the amount of air blown by the blower 7, the amount of cold heat in the evaporator 9, the flow rate of the heat medium, and the temperature.
Therefore, since it is not necessary to use a conventionally used air mix damper, at least a space for operating the air mix damper can be omitted, and the entire apparatus can be downsized.

At this time, in the heater core 11, the heat medium is supplied from the lower side and discharged from the upper side, so that the heat medium moves from the lower side to the upper side while the amount of heat is taken away by the air. For this reason, since the temperature of the heat medium is higher at the lower side and lowers as it goes to the upper side, the temperature of the conditioned air coming out of the heater core 11 is higher at the lower side and relatively lower at the upper side.
For example, the conditioned air is blown into the passenger compartment in accordance with a set blowing mode as shown in FIGS.

FIG. 3 shows a part of the control flow in the control unit 45. The control unit 45 determines whether the blowing mode is, for example, a bi-level mode or a differential / foot mode (step S1).
When the control unit 45 is not in the bi-level mode or the differential / foot mode (NO), the control unit 45 performs the above-described normal control (step S2).
For example, in the face mode or the foot mode as shown in FIG. 4, the conditioned air is mixed before being blown into the vehicle interior through the face blowing passage 19 or the foot blowing passage 21 having a distance, The air-conditioning air has a substantially uniform set temperature.

On the other hand, in the bi-level mode or the differential / foot mode (YES), the control unit 45 changes the positions of the differential / face damper 27 and the foot damper 31 as shown in FIG. 5 or FIG. 6, for example (step S3). ).
Next, the control unit 45 adjusts the pump 35 to flow through the heat medium pipe 39, and reduces the flow rate Qc of the heat medium introduced into the heater core 11 by a predetermined amount ΔQ (step S4).
When the flow rate of the heat medium supplied to the heater core 11 is reduced, the heat capacity of the heat medium is lowered. When the heat capacity of the heat medium is reduced, the temperature drop when heat is absorbed by the air is increased, so that the above-described temperature gradient is further increased, and the temperature between the temperature of the lower heat medium and the temperature of the upper heat medium is increased. The difference increases.

Therefore, the air passing under the heater core 11 has a large temperature difference with the heat medium, so that the temperature is higher. On the other hand, the air passing over the heater core 11 is lower in temperature because the temperature difference is smaller. .
In this state, the conditioned air that has exited the heater core 11 is distributed by the foot damper 31 to the upper, that is, the face blowing flow path 19 or the differential blowing flow path 17, so that the lower temperature is relatively low. Since the high conditioned air is distributed to the lower side, that is, the foot blowing flow path 21 and blown out, it is possible to easily obtain the air-conditioning state of head cold foot heat.

The controller 45 increases the temperature control target value Th of the heat medium introduced into the heater core 11 subsequent to step S4 by a predetermined amount ΔT (step S5).
Thereby, the energization amount of the heat medium heating device 37 is increased, and the temperature of the heat medium introduced into the heater core 11 is increased.
Therefore, it is possible to compensate for a decrease in the amount of heating by the heater core 11 accompanying the reduction in the flow rate of the heat medium in step S4, and it is possible to maintain the heating capacity.

  As described above, the air conditioning state of the head cold heat can be easily obtained in the state where the heating capacity is maintained by reducing the flow rate of the heat medium supplied to the heater core 11 and increasing the temperature, and therefore the evaporator 9 and the heater core 11 It is difficult to manufacture and there is no need to use a special shape or structure that causes an increase in cost, and an increase in manufacturing cost can be suppressed.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
This embodiment is different from the first embodiment described above in that the guide 47 is provided between the heater core 11 and the foot damper 31. Other points are the same as those in the first embodiment. This difference will be mainly described, and a duplicate description of the same parts as those in the first embodiment will be omitted.
In addition, the same code | symbol is used about the same part as 1st embodiment.
FIG. 7 is a partial cross-sectional view showing the positions of the differential / face damper 27 and the foot damper 31 in the bi-level mode.

In the present embodiment, a guide 47 fixed in the space between the heater core 11 and the foot damper 31 is provided.
The guide 47 is installed such that the upstream end is located at a substantially central portion in the height direction of the heater core 11 and the downstream end is close to the tip of the foot damper 31 whose downstream end is located at the intermediate position. ing.

In this case, in the mode in which the conditioned air in which the foot damper 31 is located at the intermediate position is blown out to the upper side and the lower side of the vehicle interior, the guide 47 is a space between the heater core 11 and the foot damper 31 and the upper temperature is relatively high. It is possible to prevent the conditioned air having a low temperature and the conditioned air having a relatively high temperature below from being mixed. Therefore, it is possible to obtain an air-conditioning state of head cold foot heat more reliably.
Since the tip position of the foot damper 31 can be changed in the vertical direction, the guide 47 may be provided so as to be movable in the vertical direction. If it does in this way, the air volume and temperature of the conditioned air distributed up and down can be adjusted.

[Third embodiment]
Next, a third embodiment of the present invention will be described with reference to FIGS.
In the present embodiment, the configuration of the guide provided between the heater core 11 and the foot damper 31 is different from that of the second embodiment described above. Therefore, here, this different point will be mainly described, and the first embodiment and the second embodiment. The same description as in FIG.
In addition, the same code | symbol is used about the same part as 1st embodiment.
FIG. 8 shows a differential / face damper 27 and a foot damper 31 in a face mode (solid line) in which conditioned air is blown from the face blowing channel 19 and a foot mode (two-dot chain line) in which conditioned air is blown from the foot blowing channel 21. It is a fragmentary sectional view which shows the position. FIG. 9 is a partial cross-sectional view showing the positions of the differential / face damper 27 and the foot damper 31 in the bi-level mode. FIG. 10 is a partial cross-sectional view showing the positions of the differential / face damper 27 and the foot damper 31 in the differential / foot mode.

In the present embodiment, a swing guide (guide) 49 is provided in a space between the heater core 11 and the foot damper 31.
The swing guide 49 is installed such that the downstream end portion swings in the vertical direction around the upstream end portion located at the substantially central portion in the height direction of the heater core 11.
Therefore, as in the second embodiment, the swing guide 49 is connected to the heater core 11 in the bi-level mode and the differential / foot mode in which the conditioned air in which the foot damper 31 is located at the intermediate position is blown upward and downward in the vehicle interior. In the space between the foot damper 31, it is possible to prevent the conditioned air having a relatively low temperature on the upper side and the conditioned air having a relatively high temperature on the lower side from being mixed with each other, thereby obtaining an air-conditioning state of head cold foot heat more reliably. be able to.

Further, by adjusting the angle of the swing guide 49, the vertical direction of the conditioned air exiting from the heater core 11 can be adjusted.
Accordingly, for example, if the positional relationship is as shown by the solid line in FIG. 8, the conditioned air can be smoothly sent to the face blowing channel 19. Moreover, if it is a positional relationship as shown with a dashed-two dotted line in FIG. 8, conditioned air can be smoothly sent to the foot blowing flow path 21. FIG.

By adjusting the angle of the swing guide 49 together with the foot damper 31 located at the intermediate position, a flow path surface having an arbitrary shape can be formed within a certain range.
For example, the angle of the foot damper 31 and the swing guide 49 is adjusted when the air is blown into the face blow-off channel 19 as shown in FIG. 9 and when the blow-out air is blown into the differential blow-off channel 17 as shown in FIG. And according to each, a flow path with little pressure loss can be formed.

[Fourth embodiment]
Next, a fourth embodiment of the present invention will be described using FIG. 11 and FIG.
Since this embodiment is different from the first embodiment described above in the configuration of the foot damper 31, this difference will be mainly described, and redundant description of the same parts as the first embodiment will be omitted.
In addition, the same code | symbol is used about the same part as 1st embodiment.
FIG. 11 shows a differential / face damper 27 and a foot damper 31 in a face mode (solid line) in which conditioned air is blown from the face blowing channel 19 and in a foot mode (two-dot chain line) in which conditioned air is blown from the foot blowing channel 21. It is a fragmentary sectional view which shows the position. FIG. 12 is a partial cross-sectional view showing the positions of the differential / face damper 27 and the foot damper 31 in the bi-level mode.

  In the present embodiment, as shown in FIG. 12, the upstream end portion of the foot damper 31 is configured to be positioned in the vicinity of the heater core 11 at an intermediate position.

In this way, when the foot damper 31 is positioned at an intermediate position, the conditioned air having a relatively low temperature on the upper side and the conditioned air having a relatively high temperature on the lower side are directly distributed, that is, the two are prevented from being mixed. Therefore, it is possible to obtain an air-conditioning state of head cold foot heat more reliably.
Further, by adjusting the vertical position of the upstream end portion of the foot damper 31 at the intermediate position, the air volume and temperature of the conditioned air distributed up and down can be adjusted.

  In addition, this invention is not limited to the vehicle air conditioner 1 concerning said each embodiment, In the range which does not deviate from the summary, it can change suitably.

DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner 3 Air flow path 9 Evaporator 11 Heater core 31 Foot damper 47 Guide 49 Swing guide

Claims (2)

An air conditioner for a vehicle in which an evaporator and a radiator are arranged in series along an air flow path, and is provided with an up-and-down distribution damper that vertically distributes the conditioned air that has been air-conditioned through the evaporator and the radiator A device,
In the radiator, a heat medium whose flow rate and temperature can be adjusted is supplied from the lower side of one side part, flows to the other side part, moves to the upper side in the other side part, flows to the one side part, and flows upward. It is configured to be discharged from the
When the up-and-down distribution damper is at an intermediate position for supplying the conditioned air both up and down, it is controlled to increase the temperature while reducing the flow rate of the heat medium supplied to the radiator ,
In the space between the radiator and the vertical distribution damper, a guide is provided for vertically dividing the flow path from the vertical intermediate position of the radiator to the vertical distribution damper located at the intermediate position. And
The vehicle air conditioner characterized in that the guide is swingable in a vertical direction around the radiator side . An air conditioner for a vehicle in which an evaporator and a radiator are arranged in series along an air flow path, and is provided with an up-and-down distribution damper that vertically distributes the conditioned air that has been air-conditioned through the evaporator and the radiator A device,
The radiator is configured such that a heat medium whose flow rate and temperature can be adjusted is supplied from the lower side and discharged from the upper side.
When the up-and-down distribution damper is at an intermediate position for supplying the conditioned air both up and down, it is controlled to increase the temperature while reducing the flow rate of the heat medium supplied to the radiator,
In the space between the radiator and the vertical distribution damper, a guide is provided for vertically dividing the flow path from the vertical intermediate position of the radiator to the vertical distribution damper located at the intermediate position. And
The vehicle air conditioner characterized in that the guide is swingable in a vertical direction around the radiator side.

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