JP2019156049A - Vehicular air-conditioner with humidifier - Google Patents

Abstract

To suppress, in a vehicular air-conditioner with a humidifier, decrease of warm comfort of an occupant during use of the humidifier.SOLUTION: When a humidifier introduces air in a ventilation passage sent by a blower during warming of a vehicle cabin, a control device increases an air mix door opening in comparison with a case where air in the ventilation passage sent by the blower is not introduced (step S93). In a case where air in the ventilation passage sent by the blower is introduced during cooling of the vehicle cabin, the control device decreases the air mix door opening in comparison with a case where air in the ventilation passage sent by the blower is not introduced (step S94).SELECTED DRAWING: Figure 8

Description

  The present invention relates to a vehicle air conditioner including a humidifier.

  Conventionally, an air conditioner for a vehicle provided with a humidifier is known. For example, Patent Document 1 describes a humidifier that introduces air in a ventilation path sent by a blower in a ventilation path inside an air conditioning case, humidifies the introduced air, and sends the air into a vehicle interior.

JP2015-56255A

  According to the inventor's investigation, in such a vehicle air conditioner, by operating the humidifier, otherwise, the air is blown into the vehicle interior through the air conditioning outlet (hereinafter referred to as the air conditioning outlet). The air that should be discharged is not blown out from the air conditioning outlet. As a result, when the humidifier is activated, the amount of air blown out through the air conditioning outlet into the vehicle compartment is lower than when the humidifier is not activated. Such a decrease in the air volume may lead to a decrease in the comfort of the passenger.

  In view of the above-mentioned points, the first object of the present invention is to suppress a decrease in the comfort of a passenger's warm feeling when using a humidifier in a vehicle air conditioner equipped with a humidifier.

  In addition, the inventor has examined a humidifier that alternately performs the collection mode and the discharge mode. In such a humidifier, in the recovery mode, the air cooled by the cooling heat exchanger is introduced into the humidifier, and in the discharge mode, the air cooled by the heating heat exchanger is introduced into the humidifier. Is done. Therefore, when the recovery mode and the discharge mode are alternately performed, a relatively large fluctuation may occur in the temperature of the air blown from the air conditioning outlet.

  In view of the above points, the present invention has a relatively large fluctuation in the temperature of the air blown from the air-conditioning outlet when the recovery mode and the discharge mode are alternately performed in the vehicle air-conditioning apparatus provided with the humidifier. The second object is to reduce the possibility.

In order to achieve the above object, the invention according to claim 1 is an air conditioning case that surrounds the ventilation path (10) and communicates air in the ventilation path to an air conditioning outlet (202, 212) that opens into a vehicle interior of the vehicle. (2) and
A blower (3) for sending the air in the ventilation path from the air conditioning outlet to the vehicle interior;
A humidifier (70) that introduces air in the ventilation path sent by the blower, humidifies the introduced air, and sends the air into the vehicle compartment from humidification outlets (442, 202) at a position different from the air conditioning outlet. )When,
A temperature adjusting unit (4, 5, 17, 18) provided in the ventilation path to adjust the temperature of the air flowing through the ventilation path;
A control device (80) for controlling the blower and the temperature adjustment unit,
When the humidifier introduces air in the ventilation path sent by the blower during heating of the vehicle interior, the control device converts the air in the ventilation path sent by the blower to the air in the ventilation path. Compared to a case where a humidifier is not introduced, the vehicle air conditioner enhances the heating action of the temperature adjusting unit.

  As described above, when the humidifier introduces air in the ventilation path sent by the blower during heating, the control device strengthens the heating operation of the temperature adjustment unit compared to the case where the humidifier does not. By doing in this way, the passenger | crew's warm feeling comfort impaired by the fall of the airflow from an air conditioning blower outlet can be supplemented by reinforcement | strengthening of a heating effect | action. Accordingly, it is possible to suppress a decrease in comfort of the passenger.

The invention according to claim 5 is an air conditioning case (2) that surrounds the ventilation path (10) and communicates air of the ventilation path to an air conditioning outlet (202, 212) that opens into a vehicle interior of the vehicle.
A blower (3) for sending the air in the ventilation path from the air conditioning outlet to the vehicle interior;
A humidifier (70) that introduces air in the ventilation path sent by the blower, humidifies the introduced air, and sends the air into the vehicle compartment from humidification outlets (442, 202) at a position different from the air conditioning outlet. )When,
A temperature adjusting unit (4, 5, 17, 18) provided in the ventilation path to adjust the temperature of the air flowing through the ventilation path;
A control device (80) for controlling the blower and the temperature adjustment unit,
When the humidifier introduces the air in the ventilation path sent by the blower, the control apparatus does not introduce the air in the ventilation path sent by the blower. Compared to the case, the air conditioner for a vehicle increases the amount of air blown from the blower.

  Thus, the control device increases the amount of air blown by the blower when the humidifier introduces the air in the ventilation path sent by the blower, compared to the case where the humidifier does not. By doing so, the state in which the air sent by the blower in the ventilation path in the air conditioning case is extracted by the humidifier is alleviated by increasing the blower volume of the blower. Can be suppressed.

The invention according to claim 7 is an air conditioning case (2) that surrounds the ventilation path (10) and communicates air of the ventilation path to an air conditioning outlet (202, 212) that opens into a vehicle interior of the vehicle.
A blower (3) for sending the air in the ventilation path from the air conditioning outlet to the vehicle interior;
A humidifier (70) that introduces air in the ventilation path sent by the blower, humidifies the introduced air, and sends it to the vehicle interior from a humidification outlet (442) at a position different from the air conditioning outlet ,
A temperature adjusting unit (4, 5, 17, 18) provided in the ventilation path to adjust the temperature of the air flowing through the ventilation path;
A control device (80) for controlling the blower and the temperature adjustment unit,
The temperature control unit includes a cooling heat exchanger (4), a heating heat exchanger (5), and an air mix door (17),
The cooling heat exchanger is provided in the ventilation path to cool the air in the ventilation path,
The heating heat exchanger is provided downstream of the cooling heat exchanger in the air passage to heat the air in the air passage,
The air mix door is heated by the heating heat exchanger by passing through the heating heat exchanger against cold air that is cooled by the cooling heat exchanger and bypasses the heating heat exchanger. Adjust the air volume ratio of the wind,
The air conditioning outlet blows air, in which the cold air and the warm air are mixed, into the vehicle interior,
The humidifier performs the recovery mode and the discharge mode alternately,
In the recovery mode, the humidifier introduces air cooled by the cooling heat exchanger from a position downstream of the cooling heat exchanger and upstream of the heating heat exchanger. Absorbs moisture from
In the discharge mode, the humidifier introduces the air heated by the heating heat exchanger from a position downstream of the air flow of the heating heat exchanger, humidifies the introduced air, and sends it to the vehicle interior. ,
The control device is a vehicle air conditioner that reduces the air volume ratio when the humidifier is operating in the recovery mode compared to when the humidifier is operating in the discharge mode.

  In this way, when the humidifier is operating in the recovery mode, the temperature sensation between the recovery mode and the humidification mode is reduced by reducing the air volume ratio compared to when the humidifier is operating in the discharge mode. The divergence of is reduced. That is, it is possible to reduce the possibility that a relatively large fluctuation occurs in the temperature of the air blown out from the air conditioning outlet by alternately performing the recovery mode and the discharge mode. As a result, a decrease in warmth comfort can be suppressed.

  Reference numerals in parentheses attached to each component and the like indicate an example of a correspondence relationship between the component and the like and specific components described in the embodiments described later.

It is a front view of the air conditioner of a 1st embodiment. It is a side view of the temperature adjustment unit of an air conditioner and a humidifier in the II-II line section of Drawing 1. It is sectional drawing of the temperature control unit of an air conditioner and a humidifier in the III-III line cross section of FIG. FIG. 4 is a cross-sectional view of the temperature adjustment unit of the air conditioner and the humidifier in the section taken along the line IV-IV in FIG. 3. It is a block diagram of a refrigerating cycle. It is a flowchart which shows the process of a control apparatus. It is a figure which shows the time-dependent change of the operation mode of a humidifier. It is a flowchart of the process which correct | amends an air-conditioning control amount. It is a figure which shows the change of the air volume which blows off from a blower outlet at the time of a non-operation of a humidifier. It is a figure which shows the change of the foot blower outlet temperature at the time of heating in winter. It is a figure which shows the change of the face blower outlet temperature at the time of air conditioning in summer. It is a flowchart of the process which correct | amends the air-conditioning control amount in 2nd Embodiment. It is a figure which shows the change of the air volume which blows off from a blower outlet at the time of a non-operation of a humidifier. It is a flowchart of the process which correct | amends the air-conditioning control amount in 3rd Embodiment. It is a figure which shows the time-dependent change of the air mix door opening degree in foot mode. It is a figure which shows the time-dependent change of the air mix door opening degree in face mode. It is a figure which shows the time-dependent change of the air mix door opening degree in bilevel mode. It is a flowchart of the process which correct | amends the air-conditioning control amount in 4th Embodiment. It is a figure which shows the time-dependent change of an air mix door opening degree. It is a flowchart of the process which correct | amends the air-conditioning control amount in 5th Embodiment. It is a graph which shows the reduction amount of the air mix door opening degree at the time of collection mode in 6th Embodiment. It is a graph which shows the reduction amount of the air mix door opening degree at the time of discharge | release mode. It is a graph which shows the temperature of the blower outlet in the collection | recovery mode at the time of not performing step S98 and S99 and discharge | release mode.

(First embodiment)
The first embodiment will be described below. A vehicle air conditioner (hereinafter simply referred to as an air conditioner) according to this embodiment is mounted inside an instrument panel of a vehicle. This air conditioner adjusts the temperature and humidity of air taken from the interior of the vehicle interior or the exterior of the vehicle interior, and performs air conditioning in the vehicle interior by blowing the air into the vehicle interior from a plurality of outlets that open into the vehicle interior. Moreover, this air conditioner can also blow humid air toward a passenger's face or the like from a predetermined outlet provided in the passenger compartment without requiring water supply.

  As shown in FIGS. 1, 2, 3, and 4, the air conditioner 1 includes an air conditioning case 2, a blower 3, an evaporator 4 as a cooling device, a heater core 5 as a heating device, a hygroscopic material 6, and the like. .

  The air conditioning case 2 constitutes the outer shell of the air conditioner 1. The air conditioning case 2 is formed of a resin (for example, polypropylene) having a certain degree of elasticity and excellent in strength. A ventilation path 10 through which air flows is formed inside the air conditioning case 2. That is, the air conditioning case 2 surrounds the ventilation path 10.

  Inside the air conditioning case 2, a partition plate 13 that partitions the ventilation path 10 into an upper ventilation path 11 on the upper side in the gravity direction and a lower ventilation path 12 on the lower side in the gravity direction is provided.

  The air-conditioning case 2 has an inside air introduction port 14 for introducing vehicle interior air (ie, inside air) into the air passage 10 and an air flow outside the vehicle compartment (ie, outside air) on the most upstream side of the air passage 10 in the air flow direction. 10 has an outside air inlet 15 for introduction into the air. The inside air introduction port 14 and the outside air introduction port 15 are connected to a duct (not shown) configured as a separate member from the air conditioning case 2. Air is introduced into the upper ventilation path 11 and the lower ventilation path 12 from the inside air introduction port 14 or the outside air introduction port 15 through these ducts.

  In the vicinity of the inside air introduction port 14 and the outside air introduction port 15, an inside / outside air switching door 16 as an inside / outside air switching unit is provided. The inside / outside air switching door 16 opens and closes the inside air introduction port 14 and the outside air introduction port 15. The inside / outside air switching door 16 may have a door for opening and closing the inside air introduction port 14 and a door for opening and closing the outside air introduction port 15 separately.

  The air conditioner 1 of the present embodiment can switch the air conditioning mode for introducing outside air or inside air to the upper ventilation path 11 and the lower ventilation path 12 by rotating the inside / outside air switching door 16 to a desired position. Is possible. As this air conditioning mode, an outside air mode, an inside air mode, and an inside / outside air two-layer mode can be set.

  In the outside air mode, the inside / outside air switching door 16 opens the outside air introduction port 15 and closes the inside air introduction port 14. At this time, the outside air inlet 15, the upper ventilation path 11, and the lower ventilation path 12 communicate with each other. Thereby, outside air is introduced into the upper ventilation path 11 and the lower ventilation path 12.

  In the inside air mode, the inside / outside air switching door 16 closes the outside air introduction port 15 and opens the inside air introduction port 14. At this time, the inside air inlet port 14, the upper ventilation path 11, and the lower ventilation path 12 communicate with each other. Thus, the inside air is introduced into the upper ventilation path 11 and the lower ventilation path 12.

  In the inside / outside air two-layer mode, the inside / outside air switching door 16 opens both the outside air introduction port 15 and the inside air introduction port 14. At this time, the outside air introduction port 15 and the upper ventilation path 11 communicate with each other, and the inside air introduction port 14 and the lower ventilation path 12 communicate with each other. Thereby, outside air is introduced into the upper ventilation path 11 and inside air is introduced into the lower ventilation path 12. FIG. 1 shows the position of the inside / outside air switching door 16 when the inside / outside air two-layer mode is selected.

  A blower 3 is provided in the ventilation path 10 inside the air conditioning case 2. The blower 3 includes a first centrifugal fan 31, a second centrifugal fan 32, an electric motor (not shown), and the like. The first centrifugal fan 31 is disposed above the second centrifugal fan 32 in the gravity direction.

  By driving the electric motor, the first centrifugal fan 31 and the second centrifugal fan 32 rotate. As a result, air is introduced from the inside air introduction port 14 or the outside air introduction port 15 into the upper ventilation path 11, and air is introduced from the inside air introduction port 14 or the outside air introduction port 15 into the lower ventilation path 12. Air blown by the first centrifugal fan 31 flows through the upper ventilation path 11, and air blown by the second centrifugal fan 32 flows through the lower ventilation path 12.

  The air flowing through the ventilation path 10 is defroster blowing opening 19, face blowing opening 20, foot blowing opening 21, exhaust passage 43 and humidified air passage provided on the most downstream side in the air flow direction according to the air conditioning mode. 44 is blown out.

  The evaporator 4 is provided downstream of the blower 3 in the air flow direction. The evaporator 4 is a cooling heat exchanger that cools the air flowing through the ventilation path 10. As shown in FIG. 5, the evaporator 4 constitutes a vapor compression refrigeration cycle 400 together with a compressor 401, a condenser 402, a gas-liquid separator 403, and an expansion valve 404.

  The compressor 401 is an electric compressor that sucks refrigerant in the refrigeration cycle 400 and compresses and discharges the refrigerant. The condenser 402 condenses the refrigerant by exchanging heat between the refrigerant discharged from the compressor 401 and flowing through the inside of the condenser 402 and the air outside the passenger compartment.

  The gas-liquid separator 403 is a receiver that gas-liquid separates the refrigerant condensed in the condenser 402 and stores surplus refrigerant and flows only the liquid-phase refrigerant downstream. The expansion valve 404 decompresses and expands the liquid-phase refrigerant that has flowed out of the gas-liquid separator 403. The evaporator 4 evaporates the refrigerant decompressed and expanded by the expansion valve 404, and exerts an endothermic effect on the refrigerant. Thus, in the evaporator 4, the refrigerant flowing inside the tube of the evaporator 4 and the air passing through the evaporator 4 in the ventilation path 10 exchange heat. As a result of this heat exchange, the air passing through the evaporator 4 is cooled.

  The heater core 5 is provided downstream of the evaporator 4 in the air flow direction. The heater core 5 is a heat exchanger that heats the air flowing through the ventilation path 10. Engine cooling water flows inside a tube (not shown) of the heater core 5. The engine coolant flowing inside the tube of the heater core 5 and the air flowing through the air passing through the heater core 5 in the ventilation path 10 exchange heat. By this heat exchange, the air passing through the heater core 5 is heated.

  Two air mix doors 17 are provided in the ventilation path 10 between the evaporator 4 and the heater core 5. The air mix door 17 is a slide type film door.

  Each of the air mix doors 17 adjusts the air volume ratio of warm air to cold air.

  The cold air is air that bypasses the heater core 5 after being cooled by passing through the evaporator 4. The warm air is air heated by passing through the heater core 5 after passing through the evaporator 4.

  More specifically, the upper air mix door 17 out of the two air mix doors 17 adjusts the air volume ratio of the cool air and the warm air that have passed through the upper side of the partition plate 13 in the ventilation path 10. The air mix door opening degree of the upper air mix door 17 is a ratio of the air volume of the warm air to the total air volume of the cool air and the warm air passing through the upper side of the partition plate 13 in the ventilation path 10.

  The lower air mix door 17 adjusts the air volume ratio between the cold air and the warm air passing through the lower side of the partition plate 13 in the ventilation path 10. The air mix door opening degree of the lower air mix door 17 is a ratio of the air volume of the warm air to the total air volume of the cool air and the warm air passing through the lower side of the partition plate 13 in the ventilation path 10.

  The evaporator 4, the heater core 5, and the air mix door 17 correspond to a temperature adjustment unit that is provided in the ventilation path 10 and adjusts the temperature of the air flowing through the ventilation path 10 as a whole.

  The air conditioning case 2 has a plurality of outlet openings for sending conditioned air from the ventilation path 10 into the vehicle interior on the most downstream side in the air flow direction of the ventilation path 10. The plurality of blowing openings include a defroster blowing opening 19, a face blowing opening 20, and a foot blowing opening 21.

  In the state where the air conditioner 1 is mounted on the vehicle, the defroster blowout opening 19 and the face blowout opening 20 are provided in the upper part of the air conditioning case 2 in the gravity direction. The face blowing opening 20 blows air-conditioned air toward the upper body of the occupant seated in the front seat. A face door 22 is provided in the vicinity of the face blowing opening 20. The face door 22 opens and closes the face blowing opening 20. A face duct 201 is connected to the face blowing opening 20. The face duct 201 is a duct that connects the face outlet 20 and a face outlet 202 provided in the passenger compartment. When the face door 22 opens the face outlet opening 20, the conditioned air flowing through the ventilation path 10 passes through the face duct 201 from the face outlet opening 20, and the upper body of the occupant seated on the front seat in the passenger compartment from the face outlet 202. It is blown out toward.

  The defroster blowing opening 19 blows conditioned air toward the windshield of the vehicle. A defroster door 23 is provided in the vicinity of the defroster outlet opening 19. The defroster door 23 opens and closes the defroster outlet opening 19. When the defroster door 23 opens the defroster blowout opening 19, the conditioned air flowing through the ventilation path 10 passes through the defroster duct 191 from the defroster blowout opening 19 and is blown out from the defroster blowout opening 192 toward the front windshield in the vehicle interior. The

  The foot blowout openings 21 are respectively provided at the left and right portions in the vehicle width direction in a state where the air conditioner 1 is mounted on the vehicle. The foot blowing opening 21 blows air-conditioned air toward the lower body side of the occupant seated in the right front seat and the left front seat of the vehicle. A foot door 24 is provided at a location where the ventilation path 10 and the foot outlet opening 21 communicate with each other. The foot door 24 communicates or blocks the ventilation path 10 and the foot outlet opening 21. When the foot door 24 communicates with the ventilation path 10 and the foot outlet opening 21, the conditioned air flowing through the ventilation path 10 passes through the foot duct 211 from the foot outlet opening 21 and passes through the foot outlet 212 to the lower body side of the passenger in the passenger compartment. It is blown out toward.

  As described above, the face air outlet 202, the defroster air outlet 192, and the foot air outlet 212 communicate with the air conditioning case 2 via the face duct 201, the defroster duct 191 and the foot duct 211, respectively. Each of the face outlet 202, the defroster outlet 192, and the foot outlet 212 corresponds to an air conditioning outlet. These air-conditioning outlets blow out air, which is a mixture of cold air and warm air, into the passenger compartment.

  Furthermore, the air conditioner 1 of the present embodiment includes a humidifier 70. The humidifier 70 includes the moisture absorbent material 6, the accommodating portion 25, the recovery air passage 41, the warm air passage 42, the exhaust passage 43, the humid air passage 44, the recovery air door 51, the warm air door 52, the exhaust door 53, and the humid air door 54. have. The accommodating portion 25 is a casing that can accommodate the hygroscopic material 6.

  The hygroscopic material 6 is accommodated in the accommodating space 26 formed inside the accommodating portion 25. The hygroscopic material 6 includes a hygroscopic substance having a characteristic of collecting moisture in the air according to the humidity of the air and releasing moisture into the air, and a structure that supports the hygroscopic substance. As the hygroscopic substance described above, for example, a polymer adsorbent of an organic material, or zeolite, silica gel, or the like of an inorganic material can be employed.

  As shown in FIGS. 3 and 4, the hygroscopic material 6 has an air inflow surface 61 and an air outflow surface 62. The air that has flowed in from the air inflow surface 61 of the hygroscopic material 6 flows through the gaps between the structures formed inside the hygroscopic material 6, and then flows out from the air outflow surface 62. In the following description, the space on the side where the air inflow surface 61 of the hygroscopic material 6 is arranged in the accommodation space 26 inside the accommodating portion 25 is referred to as the inflow space 261, and the air outflow surface 62 of the hygroscopic material 6 is The space on the side where it is arranged is called the outflow space 262. When the relative humidity of the air flowing through the storage space 26 from the inflow space 261 to the outflow space 262 is high, the hygroscopic material 6 collects moisture contained in the air. When the relative humidity of the air flowing through the storage space 26 from the inflow space 261 to the outflow space 262 is low, the hygroscopic material 6 releases moisture into the air.

  A recovery wind passage 41, a warm air passage 42, an exhaust passage 43, and a humidified air passage 44 are connected to the housing portion 25.

  The recovery air passage 41 is a duct that connects the two recovery air outlets 40 provided in the two side walls 200 of the ventilation path 10 and the inflow space 261 of the housing portion 25. The recovery air outlet 40 is an opening provided in the side wall 200 of the ventilation path 10 in order to introduce the air, which has been cooled by the evaporator 4 and has a high relative humidity, into the recovery air passage 41. The recovery air passage 41 takes out the air cooled by the evaporator 4 from the recovery air outlet 40 and introduces it into the inflow space 261 of the housing portion 25.

  The recovery air outlet 40 is provided in the side wall 200 of the ventilation path 10 on the downstream side of the air flow of the evaporator 4 and the upstream side of the air flow of the heater core 5. Further, the recovery wind outlet 40 is provided on the upstream side of the air flow with respect to the defroster outlet 19, the face outlet 20, and the foot outlet 21. In addition, the side wall 200 of the ventilation path 10 is a wall in a direction intersecting the gravitational direction in a state where the air conditioner 1 is mounted on the vehicle, and includes not only a wall in the vehicle width direction but also a wall in the vehicle front-rear direction. Contains.

  Further, the recovery wind outlet 40 is provided on one side wall 200 and the other side wall 200 of the lower ventilation path 12. When the inside / outside air two-layer mode or the inside air mode is performed, the inside air circulates in the lower ventilation path 12. The humidity of the inside air circulation is high due to the sweating of the passengers. Therefore, by providing the recovery wind take-off port 40 on the side wall 200 of the lower ventilation path 12 where the inside air circulation is performed, air having a high absolute humidity and a high relative humidity can be supplied from the recovery wind take-off port 40 to the storage unit 25 through the recovery wind passage 41. It is possible to supply.

  The warm air passage 42 is a duct that communicates the warm air outlet 45 provided in the ventilation path 10 and the inflow space 261 of the housing portion 25. The warm air outlet 45 is an opening provided immediately downstream of the heater core 5 in order to introduce the air heated by the heater core 5 and having a low relative humidity into the warm air passage 42. Furthermore, the warm air outlet 45 is provided on the upstream side of the air flow from the foot outlet opening 21.

  The warm air passage 42 takes out the air heated by the heater core 5 from the warm air outlet 45 and introduces it into the inflow space 261 of the housing portion 25. The warm air passage 42 extends from the housing portion 25, passes through a portion of the side wall 200 facing the passenger compartment in the air conditioning case 2, and further toward the heater core 5 from the air flow downstream of the heater core 5 in the ventilation path 10. Protruding.

  As shown in FIGS. 3 and 4, the warm air outlet 45 introduces the warm air heated by the heater core 5 into the warm air passage 42 before the warm air is mixed with the cold air bypassing the heater core 5. To do. More than 95% of the air entering the warm air outlet 45 is warm air.

  One end of the exhaust passage 43 is connected to the housing portion 25, and the other end opens to the outside of the housing portion 25. The exhaust passage 43 is a passage for discharging air from the outflow space 262 of the housing portion 25.

  The other end of the exhaust passage 43 may be opened outside the passenger compartment, or may be opened in the inside air introduction port 14. In the former case, the air that has passed through the exhaust passage 43 is discharged out of the passenger compartment. In the latter case, the air that has passed through the exhaust passage 43 returns from the inside air inlet 14 into the air conditioning case 2.

  One end of the humidified air passage 44 is connected to the accommodating portion 25, and the other end is connected to the humidifying air outlet 442. The humidification outlet 442 is provided in the vehicle compartment separately from the face outlet 202, the defroster outlet 192, and the foot outlet 212. The humidification outlet 442 is in a different position from the defroster outlet 192, the foot outlet 212, and the face outlet 202. The humidification outlet 442 is closer to the face outlet 202 than the foot outlet 212 than the defroster outlet 192. The humidified air passage 44 is a passage for blowing the air humidified in the accommodation space 26 toward the face of the passenger sitting on the seat in the vehicle interior.

  In the inflow space 261 of the housing portion 25, the recovery wind door 51 for connecting and blocking the recovery wind passage 41 and the storage space 26, and the communication air and blocking of the warm air passage 42 and the storage space 26 are provided. A warm air door 52 is provided. In addition, in the outflow space 262 of the accommodating portion 25, an exhaust door 53 for communicating and blocking the exhaust passage 43 and the accommodating space 26, and a communication and blocking for the humidified air passage 44 and the accommodating space 26 are performed. A humidified air door 54 is provided.

  As shown in FIG. 3, in the recovery mode, the recovery wind door 51 and the exhaust door 53 are in an open state, and the warm air door 52 and the humidified air door 54 are in a closed state. At this time, the recovery air passage 41 and the accommodation space 26 communicate with each other, and the exhaust passage 43 and the accommodation space 26 communicate with each other. At this time, the warm air passage 42 and the accommodating space 26 are blocked, and the humidified air passage 44 and the accommodating space 26 are blocked.

  In this state, the air introduced into the accommodation space 26 from the recovery air passage 41 flows through the moisture absorbent material 6 from the air inflow surface 61 of the moisture absorbent material 6. As a result, moisture contained in the air introduced into the accommodation space 26 from the recovery air passage 41 is adsorbed by the hygroscopic material 6. Then, the air whose humidity has been lowered through the hygroscopic material 6 is discharged from the exhaust passage 43 to the outside of the air conditioning case 2.

  On the other hand, in the discharge mode, the warm air door 52 and the humidified air door 54 are open, and the recovery air door 51 and the exhaust door 53 are closed. At this time, the warm air passage 42 and the accommodation space 26 communicate with each other, and the humidified air passage 44 and the accommodation space 26 communicate with each other. At this time, the recovery air passage 41 and the accommodation space 26 are blocked, and the exhaust passage 43 and the accommodation space 26 are blocked.

  In this state, the air introduced into the accommodation space 26 from the warm air passage 42 flows through the moisture absorbent material 6 from the air inflow surface 61 of the moisture absorbent material 6. Thereby, the moisture contained in the hygroscopic material 6 is released to the air introduced from the warm air passage 42 into the accommodation space 26. Then, the air whose humidity has increased through the moisture absorbent 6 passes through the humidified air passage 44 and is blown out from the humidified outlet 442 into the vehicle interior.

  By alternately performing such a recovery mode and a discharge mode, it is possible to humidify the passenger compartment without water supply.

  The air conditioner 1 includes a control device 80 shown in FIG. The control device 80 is realized by a known microcomputer including a CPU, RAM, ROM, flash memory, and the like. Various operations of the control device 80 are realized by the CPU executing a program recorded in the ROM or the flash memory and using the RAM as a work area at that time.

  The control device 80 controls the blower 3, the compressor 401, the inside / outside air switching door 16, the air mix door 17, the face door 22, the defroster door 23, the foot door 24, the recovery wind door 51, the warm air door 52, and the exhaust door 53. . Further, the control device 80 receives detection signals output from the inside air temperature sensor 81, the outside air temperature sensor 82, the solar radiation sensor 83, the evaporator temperature sensor 84, the water temperature sensor 85, and an operation signal from an operation panel (not shown). .

  The inside air temperature sensor 81 detects and outputs the temperature inside the vehicle compartment, that is, the inside air temperature. The outside air temperature sensor 82 detects and outputs the temperature outside the passenger compartment, that is, the outside air temperature. The solar radiation sensor 83 detects and outputs the amount of solar radiation. The evaporator temperature sensor 84 detects and outputs the temperature of the fin surface of the evaporator 4. The water temperature sensor 85 detects and outputs the temperature of the engine coolant, that is, the coolant temperature.

  Hereinafter, the control processing executed by the control device 80 will be described with reference to the flowchart of FIG. First, the control device 80 performs initialization processing of various flags and settings in step S10.

  Subsequently, the control device 80 repeatedly performs the processes of steps S20 to S100 at a constant cycle (for example, 1 second cycle). In each execution of S20 to S100, the control device 80 first reads the detection signal from the sensor group and the operation signal from the operation panel in step S20. Subsequently, the control device 80 calculates a target blowing temperature TAO of air blown into the vehicle interior based on these read signals.

Specifically, the target blowing temperature TAO is calculated by the following formula F1.
TAO = Kset × Tset−Kr × Tr−Kam × Tam−Ks × Ts + C (F1)
Here, Tset is a set temperature in the passenger compartment set by a temperature setting switch (not shown) included in the operation panel. Tr is the internal air temperature detected by the internal air temperature sensor 81. Tam is the outside air temperature detected by the outside air temperature sensor 82. Ts is the amount of solar radiation detected by the solar radiation sensor 83. Kset, Kr, Kam, and Ks are predetermined control gains. C is a correction constant.

  Subsequently, in step S40, the control device 80 determines the air blowing amount of the blower 3 with reference to the control map stored in advance in the memory based on the target blowing temperature TAO. In this control map, the relationship between the air flow rate of the blower 3 and the target blowing temperature TAO is defined. For example, the maximum air volume is reached in the extremely low temperature range and the very high temperature range of the target blowing temperature TAO, and the air flow rate decreases from the extremely low temperature range to the intermediate temperature range, and the air flow rate decreases from the extremely high temperature range to the intermediate temperature range It is stipulated to be. The air volume determined here is determined independently of the control amount of the humidifier 70.

  Subsequently, in step S50, control device 80 determines the outlet mode based on target outlet temperature TAO. That is, based on the target blowing temperature TAO, the opening / closing states of the blowing openings 19, 20, and 21 by the face door 22, the defroster door 23, and the foot door 24 are determined. For example, when the target outlet temperature TAO enters a predetermined low temperature range, the outlet mode is determined as the face mode. Then, when the target outlet temperature TAO enters a predetermined middle temperature range, the outlet mode is determined as the bi-level mode. Then, when the target outlet temperature TAO enters a predetermined high temperature range, the outlet mode is determined to be the foot mode. Here, the temperature in the middle temperature region is higher than that in the low temperature region, and the temperature is higher in the high temperature region than in the middle temperature region.

  Subsequently, the control device 80 determines a suction port mode in step S60. That is, the open / close state of the inside air introduction port 14 and the outside air introduction port 15 by the inside / outside air switching door 16 is determined. For example, when the target outlet temperature TAO is lower than the reference temperature, the control device 80 determines the suction port mode as the inside air mode. In addition, when the target outlet temperature TAO is higher than the reference temperature, the control device 80 determines the inlet mode based on the relationship between the internal temperature Tr, the external temperature Tam, and the set temperature Tset.

  Specifically, when Tam> Tr> Tset, that is, when it is desired to lower the inside air temperature but the outside air temperature is relatively high and the ventilation loss due to outside air introduction is large, the suction port mode is determined to be the inside / outside air two-layer mode. If Tr> Tset and Tr ≧ Tam, that is, if the outside air temperature is relatively low when it is desired to lower the inside air temperature, and the ventilation loss due to the introduction of outside air is small, the inlet mode is determined to be the outside air mode.

  In the case of Tset> Tr> Tam, that is, when it is desired to increase the inside air temperature but the outside air temperature is relatively low and the ventilation loss due to outside air introduction is large, the suction port mode is determined to be the inside / outside air two-layer mode. Further, when Tset> Tr and Tam ≧ Tr, that is, when the outside air temperature is relatively high when it is desired to increase the inside air temperature, if the ventilation loss due to the introduction of outside air is small, the suction port mode is determined as the outside air mode.

Subsequently, the control device 80 determines the air mix door opening of each air mix door 17 in step S70. Specifically, when the suction port mode determined in step S60 is not the inside / outside air two-layer mode, the control device 80 determines the air mix door opening SW of each air mix door 17 by the following formula F2.
SW = [(TAO−TE) / (TW−TE)] × 100 (%) (F2)
However, TE is the evaporator temperature detected by the evaporator temperature sensor 84, and TW is the cooling water temperature detected by the water temperature sensor 85. If the evaporator temperature TE and the cooling water temperature TW are the same, the air mix door opening tends to increase as the target blowing temperature TAO increases.

  Subsequently, the control device 80 determines the number of rotations of the compressor 401 in step S80. For example, based on the target blowing temperature TAO or the like, a target blowing temperature TEO that is a target value of the evaporator temperature TE is determined with reference to a control map stored in the air conditioning control device 50 in advance. Further, a deviation En (TEO-TE) between the target blowing temperature TEO and the evaporator temperature TE is calculated. Then, using this deviation En and the deviation change rate Edot (En− (En−1)) obtained by subtracting the previously calculated deviation En−1 from the currently calculated deviation En, the previous compressor rotational speed fCn. Rotational speed change amount ΔfC with respect to −1 is obtained. Specifically, a rotational speed change amount ΔfC with respect to the previous compressor rotational speed fCn−1 is obtained based on fuzzy inference based on a membership function and rules stored in advance in the air conditioning control device 50. Then, a value obtained by adding the rotational speed change amount ΔfC to the previous compressor rotational speed fCn−1 is set as the current compressor rotational speed fCn.

  Subsequently, in step S85, the control device 80 determines various control amounts of the humidifying device 70 based on an operation signal from a humidifying switch (not shown) included in the operation panel. Specifically, when the humidification switch is in an off state, it is determined that the recovery wind door 51, the warm air door 52, the exhaust door 53, and the humid air door 54 are closed. When the recovery wind door 51, the warm air door 52, the exhaust door 53, and the humidified air door 54 are closed, air does not flow from the ventilation path 10 to the accommodation space 26. That is, the humidifier 70 does not operate.

  In step S85, when the humidification switch is in the on state, the control device 80, based on the elapsed time from the time T0 when the humidification switch was last turned on, as shown in FIG. Determine the operating mode. Specifically, as shown in FIG. 7, the cycle in which the recovery mode is continued for the time T1 and then the discharge mode is continued for the time T2 is repeated. The time T1 and the time T2 may be the same or different.

  In the recovery mode, the control device 80 determines that the recovery wind door 51 and the exhaust door 53 are in an open state, and determines that the warm air door 52 and the humidified air door 54 are in a closed state. That is, the recovery air passage 41 and the accommodation space 26 are communicated, and the exhaust passage 43 and the accommodation space 26 are communicated.

  In the discharge mode, the control device 80 determines the warm air door 52 and the humidified air door 54 in the open state, and sets the recovery air door 51 and the exhaust door 53 in the closed state. That is, the warm air passage 42 and the accommodation space 26 are communicated, and the humidified air passage 44 and the accommodation space 26 are communicated.

  Subsequently, the control device 80 corrects the air conditioning control amount in step S90.

  The details of the process for correcting the air conditioning control amount are shown in FIG. In this process, the control device 80 first determines in step S91 whether or not the humidifying device 70 is set to operate. Specifically, in the immediately preceding step S85, if the operation mode of the humidifier 70 is set to the recovery mode or the discharge mode, it is determined that the humidifier 70 is set to operation. Further, in the immediately preceding step S85, if the operation mode of the humidifier 70 is not set to the recovery mode or the discharge mode, it is determined that the humidifier 70 is not set to the operation.

  If it is determined that the humidifier 70 is not set to operate, step S90 is terminated without changing the air mix door opening of each air mix door 17, and the process proceeds to step S100. If it is determined that the humidifier 70 is set to operate, the process proceeds to step S92.

  In step S92, the blower outlet mode set in the immediately preceding step S50 is specified, and the process proceeds to a step corresponding to the specified blower outlet mode. Specifically, if the outlet mode set in the immediately preceding step S50 is the bi-level mode, step S90 is terminated without changing the air mix door opening of each air mix door 17, and the process proceeds to step S100. If the outlet mode set in the immediately preceding step S50 is the foot mode, the process proceeds to step S93, and if the blower mode is the face mode, the process proceeds to step S94.

  In step S93, the air mix door opening is corrected so as to be larger than the value determined in the immediately preceding step S70. For example, the air mix door opening is increased by a certain value (for example, 5%) from the value determined in the immediately preceding step S70. However, if the air mix door opening becomes larger than 100% of the upper limit when the constant value is increased, the air mix door opening is set to 100%. After step S93, step S90 is ended and the process proceeds to step S100.

  This is because the settings relating to the air conditioning in the passenger compartment at this time are heating in most cases. This is because the foot mode is set when the target blowing temperature TAO is in a predetermined high temperature range, and the higher the target blowing temperature TAO is, the higher the air mix door opening is set (that is, heating tendency). Is also obvious.

  In step S94, the air mix door opening is corrected so as to be smaller than the value determined in the immediately preceding step S70. For example, the air mix door opening is decreased by a certain value (for example, 5%) from the value determined in the immediately preceding step S70. However, if the air mix door opening determined in the immediately preceding step S70 is smaller than this fixed value, the air mix door opening is not changed in step S93. This is because the warm air outlet 45 is immediately downstream of the heater core 5. When the air mix door opening determined in the immediately preceding step S70 is smaller than this fixed value, there is almost no air blown out from the humidified air passage 44 in the discharge mode, and the humidifier 70 does not work substantially. After step S94, step S90 is ended and the process proceeds to step S100.

  This is because the settings relating to the air conditioning in the vehicle interior at this time point are cooling in most cases. This is because the face mode is set when the target blowout temperature TAO is in a predetermined low temperature range, and the air mix door opening is set lower as the target blowout temperature TAO is lower (that is, the cooling tendency). Is also obvious.

  In step S100, the control device 80 controls various devices so that the control amounts and control states determined in the above-described steps S40 to S90 are realized. Specifically, the devices to be controlled at this time are the blower 3, the face door 22, the defroster door 23, the foot door 24, the inside / outside air switching door 16, the air mix door 17, the recovery wind door 51, the warm air door 52, the exhaust air. The door 53, the humidified air door 54, and the compressor 401. Specifically, the control device 80 controls the blower 3 so as to realize the air volume of the blower 3 determined in the immediately preceding step S40.

  Moreover, the control apparatus 80 opens the face door 22, and closes the defroster door 23 and the foot door 24, when the blower outlet mode is determined to be the face mode by step S50 immediately before. As a result, the air that has passed through the ventilation path 10 is blown out only from the face outlet 202 out of the face outlet 202, the defroster outlet 192, and the foot outlet 212.

  Moreover, the control apparatus 80 opens the face door 22 and the foot door 24, and closes the defroster door 23, when blower outlet mode is determined to be bilevel mode by step S50 immediately before. As a result, the air that has passed through the ventilation path 10 is blown out of only the face outlet 202 and the foot outlet 212 among the face outlet 202, the defroster outlet 192, and the foot outlet 212. At this time, the air blown out from the face outlet 202 is mainly cold air that bypasses the upper side of the heater core 5. Therefore, the temperature of the air blown out from the foot blower outlet 212 is higher than the temperature of the air coming out from the face blower outlet 202.

  Moreover, the control apparatus 80 opens the foot door 24, and closes the face door 22 and the defroster door 23, when the blower outlet mode is determined to be foot mode by step S50 immediately before. As a result, the air that has passed through the ventilation path 10 is blown out only from the foot outlet 212 of the face outlet 202, the defroster outlet 192, and the foot outlet 212.

  Further, when the suction port mode is determined in the immediately preceding step S60, the control device 80 controls the inside / outside air switching door 16 so as to realize the determined suction port mode. In addition, the control device 80 controls each of the air mix doors 17 so that the air mix door opening determined in the immediately preceding steps S70 and S90 is realized. In addition, the control device 80 controls the compressor 401 so that the rotation speed of the compressor 401 determined in the immediately preceding step S80 is realized.

  Thereby, the operation | movement for implement | achieving the preset temperature Tset which the passenger | crew set has been implement | achieved in a vehicle interior is implement | achieved. That is, the air introduced into the ventilation path 10 from the outside air introduction port 15 or the inside / outside air switching door 16 is sucked by the blower 3 and blown out to the inside air introduction port 14 side. The blown air is cooled by the evaporator 4 when passing through the evaporator 4. The air cooled by the evaporator 4 becomes warm air heated by the heater core 5 when passing through the heater core 5, and becomes cold air that is not heated when the heater core 5 is bypassed. The air volume ratio of the warm air to the cold air is larger as the air mix door opening degree of the air mix door 17 is larger as described above.

  When the air mix door opening is neither 0% nor 100%, the cold air and the warm air are mixed to open the opening of the defroster air outlet 19, the face air outlet 20, and the foot air outlet 21. Sent to the passenger compartment.

  Here, the thermal comfort in the vehicle compartment when the humidifying device 70 operates and when it does not operate will be described. The warm feeling comfort is the comfort that the occupant feels in relation to the temperature of the passenger compartment.

  When the humidifier 70 operates, the air in the ventilation path 10 is extracted from the recovery wind outlet 40 to the accommodation space 26 in the recovery mode. In the discharge mode, air in the ventilation path 10 is extracted from the warm air outlet 45 to the accommodation space 26.

  In this way, by operating the humidifier 70, air that would otherwise be blown into the vehicle compartment through any one of the blowout openings 19, 20, and 21 is not blown out from the blowout opening. As a result, as shown in FIG. 9, if the amount of air blown by the blower 3 is the same, the amount of air blown into the vehicle interior through the blowout opening portion when the humidifying device 70 is activated as compared to when it is not activated. Decreases. Such a decrease in the air volume may lead to a decrease in the comfort of the passenger.

  For example, when the humidifier 70 is activated when the air outlet mode is the foot mode in winter, the amount of air blown from the foot air outlet 212 into the vehicle compartment through the foot air outlet 21 is reduced. As a result, as shown in FIG. 9, if the air blowing amount of the blower 3 is the same, the humidifying device 70 operates more than the air amount 86 blown from the foot outlet 212 when the humidifying device 70 is not operating. The amount of air 87 blown out from the foot outlet 212 in the state where it is present is smaller. When the air outlet mode is the foot mode, it is during heating of the passenger compartment.

  When the amount of air blown out from the foot outlet 212 into the vehicle interior is reduced, the comfort of the occupant's feet may be reduced. Specifically, the passenger may feel that the heating has weakened. Note that the sum of the air volume 88 blown from the exhaust passage 43 or the humidified air path 44 and the air volume 87 blown from the foot outlet 212 when the humidifier 70 is in operation is larger than the air volume 86. This is because the pressure loss of the air circulating in the air conditioner 1 is reduced by opening the exhaust passage 43 or the humidified air passage 44.

  Further, for example, when the humidifying device 70 is activated in the summer when the air outlet mode is the face mode, the amount of air blown from the face air outlet 202 into the vehicle interior through the face air outlet 20 is reduced. When the amount of air blown out from the face outlet 202 into the vehicle interior decreases, the warmth comfort of the occupant's upper body may decrease. Specifically, the passenger may feel that the cooling is weakened. When the air outlet mode is the face mode, it is during cooling of the passenger compartment.

  Therefore, in the present embodiment, as the processes of steps S93 and S94, when the humidifier 70 is activated, the air mix door opening is made different from that when the humidifier 70 is not activated. More specifically, in the process of step S93, the air volume ratio of the warm air to the cold air is increased by increasing the air mix door opening in the foot mode. Thereby, the temperature of the air which blows off from the foot blower outlet 212 rises. That is, the heating action of the temperature control unit is strengthened by increasing the air mix door opening. Therefore, the possibility that the occupant feels that the heating has weakened even if the air volume is reduced is reduced. That is, a decrease in warmth comfort can be suppressed. In step S93, the air mix door opening is increased by the same amount regardless of whether the operation mode of the humidifier 70 is the recovery mode or the discharge mode.

  In the discharge mode, the warm air passing through the heater core 5 is sent from the warm air outlet 45 in the ventilation path 10 to the humidifier 70 by the blower 3. This acts in the direction of lowering the temperature of the air coming out from the foot outlet 212, and this causes a decrease in the warm feeling comfort as well as the air volume. Therefore, as described above, increasing the air mix door opening and increasing the temperature of the air exiting from the foot outlet 212 is significant in order to suppress a decrease in warm feeling comfort.

  In the recovery mode, air that has been cooled by passing through the evaporator 4 and not heated by the heater core 5 is sent to the humidifier 70 from the recovery wind outlet 40 in the ventilation path 10. This works in the direction of increasing the temperature of the air coming out from the foot outlet 212, and as described above, synergistic effect with increasing the air mix door opening degree, lowering the warmth comfort due to the decrease in air volume Can be suppressed.

  As a result, as shown in FIG. 10, if the humidifier 70 is inactive, the temperature of the air at the foot outlet 212 changes as indicated by a solid line 90, whereas if the humidifier 70 is in operation, It changes like a solid line 91. In the solid line 91, the reference temperature 92 is high in the recovery mode in which the cool air is extracted, and is low in the discharge mode in which the warm air is extracted. The reference temperature 92 is higher than the solid line 90 reflecting the increase in the air mix door opening degree due to the processing in step S93.

  In the example of FIG. 10, the temperature of the solid line 91 is lower than the temperature of the solid line 90 in the discharge mode, and the temperature of the solid line 91 is higher than the temperature of the solid line 90 in the recovery mode. However, the temperature of the solid line 91 may be higher than the temperature of the solid line 90 in both the discharge mode and the recovery mode.

  Further, in the process of step S94, the air volume ratio of the warm air to the cold air is reduced by reducing the air mix door opening in the face mode. Thereby, the temperature of the air which blows off from the face blower outlet 202 falls. That is, the cooling action of the temperature control unit is strengthened by reducing the air mix door opening. Therefore, the possibility that the occupant feels that the cooling is weakened even if the air volume is reduced is reduced. That is, a decrease in warmth comfort can be suppressed.

  In step S94, the air mix door opening is decreased by the same amount regardless of whether the operation mode of the humidifier 70 is the recovery mode or the discharge mode. In the discharge mode, the warm air passing through the heater core 5 is sent from the warm air outlet 45 in the ventilation path 10 to the humidifier 70 by the blower 3. This works in the direction of lowering the temperature of the air coming out from the face air outlet 202, and as described above, it is a synergistic effect with reducing the air mix door opening and lowering the comfort of warmth due to the decrease in the air volume. Can be suppressed.

  In the recovery mode, air that has been cooled by passing through the evaporator 4 and not heated by the heater core 5 is sent to the humidifier 70 from the recovery wind outlet 40 in the ventilation path 10. This acts in the direction of increasing the temperature of the air exiting from the face outlet 202, and this causes a decrease in air flow and a decrease in warmth comfort. Therefore, as described above, reducing the air mix door opening and lowering the temperature of the air exiting from the face air outlet 202 is meaningful in order to suppress a decrease in warmth comfort.

  As a result, as shown in FIG. 11, if the humidifier 70 is inactive, the temperature of the air at the face outlet 202 changes as indicated by a solid line 95, whereas when the humidifier 70 is in operation, It changes like a solid line 96. The solid line 96 has a higher temperature than the reference temperature 97 in the recovery mode in which the cool air is extracted, and lower in the discharge mode in which the warm air is extracted. Note that the reference temperature 97 is lower than the solid line 95, reflecting that the air mix door opening has been reduced by the process of step S94.

  In the example of FIG. 11, the temperature of the solid line 96 is higher than the temperature of the solid line 95 in the recovery mode, and the temperature of the solid line 96 is lower than the temperature of the solid line 95 in the discharge mode. However, the temperature of the solid line 96 may be lower than the temperature of the solid line 95 in both the recovery mode and the discharge mode.

  As described above, when the humidifier 70 introduces air in the ventilation path 10 during heating of the passenger compartment, the control device 80 does not introduce the air in the ventilation path 10. Compared with, the heating function of the temperature control unit is strengthened. By doing in this way, the passenger | crew's warm feeling comfort impaired by the fall of the airflow from an air conditioning blower outlet can be supplemented by reinforcement | strengthening of a heating effect | action. Accordingly, it is possible to suppress a decrease in comfort of the passenger.

  In addition, when the humidifier 70 introduces air in the ventilation path 10 during cooling of the vehicle interior, the control device 80 compares the air in the ventilation path 10 with no air introduced by the humidifier 70. Enhance the cooling action of the temperature control unit. By doing in this way, the passenger | crew's warm feeling comfort impaired by the fall of the airflow from an air conditioning blower outlet can be supplemented by reinforcement | strengthening of a cooling effect | action. Accordingly, it is possible to suppress a decrease in comfort of the passenger.

  Moreover, the control apparatus 80 strengthens the heating effect | action of a temperature control part by controlling the air mix door 17 and making an air volume ratio high. Moreover, the control apparatus 80 strengthens the air_conditioning | cooling effect | action of a temperature control part by controlling the air mix door 17 and making an air volume ratio low. In this way, by adjusting the air volume ratio adjusted by the air mix door 17 and strengthening the heating action and the cooling action of the temperature adjustment unit, the air conditioner is controlled by the blower 3 in order to suppress a decrease in the passenger's warm feeling comfort. The possibility that the noise of 1 will increase can be reduced.

  Moreover, as above-mentioned, when the humidification apparatus 70 is not act | operating, correction | amendment of the air mix door opening determined by step S70 is not performed. Even if the humidifier 70 is operating, if the air outlet mode is the bi-level mode, the air mix door opening determined in step S70 is not corrected. This is because the bi-level mode is set when the target blowout temperature TAO is in the middle temperature range, and therefore, it is unlikely that correcting the temperature of the air blown into the passenger compartment will suppress a decrease in the comfort of warmth. is there.

(Second Embodiment)
Next, the second embodiment will be described focusing on differences from the first embodiment. The present embodiment differs from the first embodiment in the content of the processing in step S90 for correcting the air conditioning control amount. Specifically, in step S90, the control device 80 executes the process shown in FIG. 12 instead of the process in FIG.

  In the process of FIG. 12, the controller 80 first determines in step S95 whether or not the humidifier 70 is set to operate as in step S91 of FIG. If it is determined that the humidifier 70 is not set to operate, the process of step S96 is bypassed and the process proceeds to step S100. If it is determined that the humidifier 70 is set to operate, the process proceeds to step S96.

  In step S96, the control device 80 increases the air flow rate of the blower 3 from the air flow rate determined in the immediately preceding step S40. For example, the result obtained by multiplying the air flow determined in the immediately preceding step S40 by one or more constants (eg, 1.1) may be determined as the new air flow of the blower 3. After step S96, the process proceeds to step S100.

  By correcting the air flow rate of the blower 3 in this way, as shown in FIG. 13, a reduction in the air volume due to the operation of the humidifier 70 can be suppressed. That is, in the foot mode, the air volume 126 blown out from the foot outlet while the humidifier 70 is not operating is substantially the same as the air volume 127 blown out from the foot outlet 212 while the humidifier 70 is operating. This is the same whether the humidifier 70 is operating in the recovery mode or the discharge mode. Therefore, it is possible to suppress a decrease in the warmth comfort at the feet of the passenger. Note that the sum of the air volume 128 blown from the exhaust passage 43 or the humidified air passage 44 and the air volume 127 blown from the foot outlet 212 when the humidifier 70 is in operation is larger than the air volume 127. Note that “the air volume is substantially the same” means that, for example, the ratio of the smallest air volume to the largest air volume is 0.95 or more.

  The same applies when the outlet mode is the bi-level mode. That is, the amount of air blown from the foot outlet 212 and the face outlet 202 when the humidifier 70 is not operating is substantially the same as the amount of air blown from the foot outlet 212 and the face outlet 202 while the humidifier 70 is operating. become. This is the same whether the humidifier 70 is operating in the recovery mode or the discharge mode. Therefore, it is possible to suppress a decrease in the warmth comfort at the feet of the passenger.

  The same applies when the outlet mode is the face mode. That is, the amount of air blown from the face air outlet 202 when the humidifier 70 is not operating is substantially the same as the amount of air blown from the face air outlet 202 while the humidifier 70 is operating. This is the same whether the humidifier 70 is operating in the recovery mode or the discharge mode. Therefore, it is possible to suppress a decrease in the warmth comfort at the feet of the passenger.

  Thus, in this embodiment, when the humidifier 70 introduces the air in the ventilation path 10 sent by the blower 3, the control device 80 reduces the blown amount of the blower 3 compared to the case where it is not. increase. By doing in this way, the state where the air sent by the blower 3 in the ventilation path 10 in the air conditioning case 2 is extracted by the humidifier 70 is alleviated by the increase in the amount of air blown by the blower 3, so A decrease in comfort can be suppressed.

(Third embodiment)
Next, the third embodiment will be described focusing on differences from the first embodiment. The present embodiment differs from the first embodiment in the content of the processing in step S90 for correcting the air conditioning control amount. Specifically, in step S90, the control device 80 executes the process shown in FIG. 14 instead of the process in FIG.

  In the process of FIG. 14, the processing contents of steps S91, S92, S93, and S94 are the same as the processes with the same step numbers in FIG. However, the control device 80 proceeds to step S100 if it is determined in step S91 that the humidifying device 70 is not operating, and proceeds to step S97 if it is determined in step S92 that the air outlet mode is the bi-level mode. Further, after steps S93 and S94, the control device 80 proceeds to step S97.

  In step S97, the control device 80 determines whether the operation mode of the humidifying device 70 determined in the immediately preceding step S85 is the recovery mode or the discharge mode. If it is the recovery mode, the process proceeds to step S98, and if it is the release mode, the process proceeds to step S99.

  In step S98, the air mix door opening is corrected so as to be smaller than the value determined in the immediately preceding step S93 or step S94. In step S99, the air mix door opening is corrected so as to be larger than the value determined in the immediately preceding step S93 or step S94. After steps S98 and S99, step S90 is ended and the process proceeds to step S100.

  Here, the increase / decrease amount of the air mix door opening in steps S93, S94, S98, and S99 will be described with reference to FIG. 15, FIG. 16, and FIG. FIGS. 15, 16, and 17 show changes over time in the air mix door opening in the foot mode, the face mode, and the bi-level mode, respectively.

  In FIG. 15, the solid line 130 represents the air mix door opening determined in step S <b> 70, that is, the air mix door opening set when the humidifying device 70 does not operate. A solid line 131 represents the air mix door opening finally determined in step S90. Moreover, the broken line 132 represents the air mix door opening degree after correction | amendment by step S93. As shown in this figure, the air mix door opening increased by the increase amount U1 as indicated by the broken line 132 with respect to the solid line 130 in step S93 is further decreased by the decrease amount D2 in step S98 in the recovery mode, and the release mode. In step S99, the amount is further increased by the increase amount U2.

  In FIG. 16, the solid line 135 represents the air mix door opening determined in step S70. A solid line 136 represents the air mix door opening finally determined in step S90. A broken line 137 represents the air mix door opening after the correction in step S94. As shown in this figure, the air mix door opening decreased by the decrease amount D1 as indicated by the broken line 137 with respect to the solid line 135 in step S94 is further decreased by the decrease amount D2 in step S98 in the recovery mode, and the release mode. In step S99, the amount is further increased by the increase amount U2.

  In FIG. 17, the solid line 140 represents the air mix door opening degree determined in step S70. A solid line 141 represents the air mix door opening finally determined in step S90. As shown in this figure, the air mix door opening determined in step S70 is decreased by a decrease amount D2 in step S98 in the recovery mode, and is increased by an increase amount U2 in step S99 in the discharge mode.

  Here, the significance of performing the above operation will be described. In the recovery mode, the air cooled by passing through the evaporator 4 is extracted from the recovery wind outlet 40 to the accommodation space 26. In the discharge mode, the air heated by the heater core 5 is extracted from the warm air outlet 45 to the accommodation space 26.

  Therefore, since the recovery mode and the discharge mode are alternately performed instead of simultaneously, if steps S97, S98, and S99 are not performed, a relatively large fluctuation occurs in the temperature of the air blown from the corresponding outlet. There is a possibility. This may lead to a decrease in passenger comfort. The corresponding air outlet in the foot mode is the foot air outlet 212, the corresponding air outlet in the face mode is the face air outlet 202, and the corresponding air outlet in the bi-level mode is the face air outlet 202 and the foot. Both of the air outlets 212.

  Therefore, in the present invention, as described above, the air mix door opening is corrected to be low in the recovery mode, and the air mix door opening is corrected to be high in the discharge mode. By doing in this way, steps S97, S98, and S99 are not executed for the difference between the temperature of air blown from the corresponding outlet in the recovery mode and the temperature of air blown from the corresponding outlet in the discharge mode. Compared to the case, it can be reduced.

  The increase amount U1 of the air mix door opening in step S93 and the decrease amount D1 of the air mix door opening in step S94 may be the same or different. Further, the decrease amount D2 of the air mix door opening in step S98 and the increase amount U2 of the air mix door opening in step S99 may be the same or different. Further, the increase amount U1 and the increase amount U2 may be the same or different. Further, the reduction amount D1 and the reduction amount D2 may be the same or different.

  The amounts U1, U2, D1, D2 are for example the temperature difference between the recovery mode and the discharge mode of the air blown from the corresponding outlet in all or part of the foot mode, face mode, bi-level mode. The absolute value may be set to be less than 3 ° C.

  Thus, when the humidifier 70 is operating in the recovery mode, the air volume ratio is reduced as compared with the case where the humidifier 70 is operating in the discharge mode, so that there is no difference between the recovery mode and the humidification mode. Dissipation of warmth is reduced. That is, it is possible to reduce the possibility that a relatively large fluctuation occurs in the temperature of the air blown out from the air conditioning outlet by alternately performing the recovery mode and the discharge mode. As a result, a decrease in warmth comfort can be suppressed.

(Fourth embodiment)
Next, a fourth embodiment will be described focusing on differences from the second embodiment. The present embodiment differs from the second embodiment in the content of the processing in step S90 for correcting the air conditioning control amount. Specifically, in step S90, the control device 80 executes the process shown in FIG. 18 instead of the process of FIG.

  In step S96, the control device 80 increases the air blowing amount of the blower 3 from the air blowing amount determined in the immediately preceding step S40, similarly to step S96 of FIG. After step S96, the process proceeds to step S97. The processing contents of steps S97, S98, and S99 are the same as steps S97, S98, and S99 of FIG. 14 in the third embodiment, respectively.

  By doing in this way, in any of foot mode, face mode, and bilevel mode, an air mix door opening shows a time-dependent change as shown in FIG. In FIG. 19, the solid line 145 represents the air mix door opening determined in step S70. A solid line 146 represents the air mix door opening finally determined in step S90. As shown in this figure, the air mix door opening determined in step S70 is decreased by a decrease amount D2 in step S98 in the recovery mode, and is increased by an increase amount U2 in step S99 in the discharge mode.

  By doing in this way, in addition to the effect similar to 2nd Embodiment, the following effects can be acquired. That is, the difference between the temperature of the air blown from the corresponding outlet in the recovery mode and the temperature of the air blown from the corresponding outlet in the discharge mode is compared with the case where steps S97, S98, and S99 are not executed. Can be reduced. For example, in all or part of the foot mode, the face mode, and the bi-level mode, the absolute value of the temperature difference between the recovery mode and the discharge mode of the air blown out from the corresponding outlet is less than 3 ° C.

  Thus, when the humidifier 70 is operating in the recovery mode, the air volume ratio is reduced as compared with the case where the humidifier 70 is operating in the discharge mode, so that there is no difference between the recovery mode and the humidification mode. Dissipation of warmth is reduced. That is, it is possible to reduce the possibility that a relatively large fluctuation occurs in the temperature of the air blown out from the air conditioning outlet by alternately performing the recovery mode and the discharge mode. As a result, a decrease in warmth comfort can be suppressed.

(Fifth embodiment)
Next, a fifth embodiment will be described focusing on differences from the fourth embodiment. The present embodiment differs from the first embodiment in the content of the processing in step S90 for correcting the air conditioning control amount. Specifically, in step S90, the control device 80 executes the process shown in FIG. 20 instead of the process of FIG.

  The processing in FIG. 20 is obtained by eliminating the processing in step S96 from the processing in FIG. That is, in the process of FIG. 20, when the control device 80 first determines in step S91 that the humidifying device 70 is set to operate, the control device 80 proceeds directly to step S97. The processing contents of steps S97, S98, and S99 are the same as those in the fourth embodiment.

  By doing in this way, the air mix door opening changes with time as shown in FIG. 19 as in the fourth embodiment. By doing in this way, steps S97, S98, and S99 are not executed for the difference between the temperature of air blown from the corresponding outlet in the recovery mode and the temperature of air blown from the corresponding outlet in the discharge mode. Compared to the case, it can be reduced. For example, in all or part of the foot mode, the face mode, and the bi-level mode, the absolute value of the temperature difference between the recovery mode and the discharge mode of the air blown out from the corresponding outlet is less than 3 ° C.

  Thus, when the humidifier 70 is operating in the recovery mode, the air volume ratio is reduced as compared with the case where the humidifier 70 is operating in the discharge mode, so that there is no difference between the recovery mode and the humidification mode. Dissipation of warmth is reduced. That is, it is possible to reduce the possibility that a relatively large fluctuation occurs in the temperature of the air blown out from the air conditioning outlet by alternately performing the recovery mode and the discharge mode. As a result, a decrease in warmth comfort can be suppressed.

(Sixth embodiment)
Next, the sixth embodiment will be described focusing on differences from the third, fourth, and fifth embodiments. In the present embodiment, the contents of steps S98 and S99 in the third, fourth, and fifth embodiments are changed.

  Specifically, in the recovery mode, the control device 80 reduces the air mix door opening in step S98 as in the third, fourth, and fifth embodiments. At this time, the amount of reduction of the air mix door opening differs from the third, fourth, and fifth embodiments, and differs according to the air mix door opening just before the change. Specifically, as shown in FIG. 21, the amount of reduction of the air mix door opening increases as the air mix door opening increases. The amount of reduction of the air mix door opening is a positive value. In addition, since the air mix door opening degree before a change is so large that the target blowing temperature TAO is high, it can be said that the reduction amount of an air mixing door opening degree becomes large, so that the target blowing temperature TAO is high.

  Moreover, the control apparatus 80 increases an air mix door opening degree similarly to 3rd, 4th, 5th embodiment by step S99 at the time of discharge | release mode. At this time, the amount of increase in the air mix door opening differs from the third, fourth, and fifth embodiments, and differs depending on the air mix door opening just before the change. Specifically, as shown in FIG. 22, the amount of increase in the air mix door opening decreases as the air mix door opening increases. Therefore, it can be said that the higher the target blowing temperature TAO, the smaller the increase in the air mix door opening.

  The significance of doing this will be described with reference to FIG. FIG. 23 shows how the temperature of the corresponding air outlet changes when steps S98 and S99 are not executed in each of the foot mode, the bi-level mode, and the face mode.

  The significance of doing this will be described with reference to FIG. FIG. 23 shows how the temperature of the corresponding outlet changes in comparison with when the humidifying device 70 is not operating when steps S98 and S99 are not executed in the recovery mode and the discharge mode, respectively. It is a graph which shows. Here, the corresponding air outlets refer to the foot air outlet 212 in the foot mode, the foot air outlet 212 and the face air outlet 202 in the bi-level mode, and the face air outlet 202 in the face mode.

  In FIG. 23, solid lines 110 a, 110 b, 110 c, and 110 d indicate the temperature of the air blown out from the corresponding air outlet (that is, the air outlet temperature) and the air mix door opening that are realized when the humidifier 70 is not in operation. Show the relationship. The solid lines 111a, 111b, 111c, and 111d indicate the relationship between the corresponding outlet temperature and the air mix door opening, which is realized when the processing in steps S98 and S99 is not performed in the recovery mode. . The solid lines 112a, 112b, 112c, and 112d indicate the relationship between the outlet temperature of the corresponding outlet and the air mix door opening, which is realized when the processes in steps S98 and S99 are not performed in the discharge mode. .

  More specifically, solid lines 110a, 111a, and 112a indicate the outlet temperature of the foot outlet 212 in the foot mode. Solid lines 110b, 111b, and 112b indicate the outlet temperature of the foot outlet 212 in the bi-level mode. Solid lines 110c, 111c, and 112c indicate the outlet temperature of the face outlet 202 in the bi-level mode. Solid lines 110d, 111d, and 112d indicate the air outlet temperature of the face air outlet 202 in the face mode.

  As shown in FIG. 23, in the recovery mode, the air cooled by the evaporator 4 is extracted to the humidifier 70, so that the corresponding outlet temperature of the outlet is higher than when the humidifier 70 is not operating. Tend to be.

  Moreover, the higher the air mix door opening degree, the larger the difference between the outlet temperature of the corresponding outlet and the outlet temperature when the humidifier 70 is not operating. This is because the high air mix door opening means that the cool air is further removed by the humidifier 70 in a situation where the amount of cool air that bypasses the heater core 5 is small. Therefore, in order to reduce the temperature difference between the collection mode and the discharge mode, it is desirable to increase the decrease amount of the air mix door opening as the uncorrected air mix door opening is high in the collection mode.

  Further, as shown in FIG. 23, in the discharge mode, the warm air warmed by the heater core 5 is extracted to the humidifier 70, so that the corresponding outlet is compared with a case where the humidifier 70 is not operating. Temperature tends to decrease.

  In addition, the lower the air mix door opening, the greater the difference between the outlet temperature of the corresponding outlet and the outlet temperature when the humidifier 70 is not operating. This is because the low air mix door opening means that only the warm air is removed by the humidifier 70 in a situation where the amount of warm air passing through the heater core 5 is small. Therefore, in order to reduce the temperature difference between the recovery mode and the discharge mode, it is desirable to increase the increase amount of the air mix door opening as the uncorrected air mix door opening is low in the discharge mode.

  Therefore, as described above, the control device 80 increases the amount of reduction of the air mix door opening as the air mix door opening increases in the recovery mode, and increases the air mix door opening as the air mixing door opening increases in the discharge mode. Reduce the increase in the mix door opening. Thereby, the temperature difference between the recovery mode and the discharge mode can be further reduced.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and can be changed as appropriate. Further, the above embodiments are not irrelevant to each other, and can be combined as appropriate unless the combination is clearly impossible. In each of the above-described embodiments, the elements constituting the embodiment are not necessarily essential unless explicitly stated as essential and clearly considered essential in principle. Further, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the constituent elements of the embodiment are mentioned, it is clearly limited to a specific number when clearly indicated as essential and in principle. The number is not limited to the specific number except for the case. In particular, when a plurality of values are exemplified for a certain amount, it is also possible to adopt a value between the plurality of values unless specifically stated otherwise and in principle impossible. . Further, in each of the above embodiments, when referring to the shape, positional relationship, etc. of the component, etc., the shape, unless otherwise specified and in principle limited to a specific shape, positional relationship, etc. It is not limited to the positional relationship or the like. In addition, the present invention allows the following modifications and equivalent modifications of the above embodiments. In addition, the following modifications can select application and non-application to the said embodiment each independently. In other words, any combination of the following modifications can be applied to the above-described embodiment.

(Modification 1)
In the said embodiment, although the humidification blower outlet 442 is provided separately from the face blower outlet 202, the face blower outlet 402 may serve as a humidification blower outlet. That is, one end of the humidified air passage 44 may be connected to the accommodating portion 25 and the other end may be connected to the face outlet 202.

  In this case, in the release mode, air that has passed through the moisture absorbent 6 and has increased in humidity passes through the humidified air passage 44 and is blown out from the face air outlet 202 into the vehicle interior. In the winter foot mode, such an action provides the same effects as in the above embodiment. This is because air for air conditioning is blown out from the foot outlet 212 into the vehicle interior, and air for humidification is blown out from the face outlet 202. In this case, the foot outlet 212 corresponds to the air conditioning outlet, and the face outlet 202 corresponds to the humidifying outlet.

  However, in the summer face mode and discharge mode, even if the humidifier 70 is operating, it does not cause a reduction in the air volume from the face outlet 202 when the humidifier 70 is not operating. . This is because the air that has passed through the humidified air passage 44 merges with the air that has passed through the face duct 201 and is blown out from the face outlet 202. In such a case, even if the air volume from the face air outlet 202 does not decrease, the warm air passing through the warm air passage 42 and the humidified air passage 44 is also blown out from the face air outlet 202. Accordingly, the operation of the humidifying device 70 in the discharge mode can be a factor that raises the temperature of the air blown out from the face air outlet 202 when the humidifying device 70 is not operating and during the recovery mode. Therefore, as shown in step S94 in FIG. 8, the increase in the temperature of the air blown out from the face outlet 202 can be suppressed by reducing the air mix door opening. That is, also in this case, it is possible to suppress a decrease in warmth comfort by reducing the air mix door opening.

  In the second and fourth embodiments, the face air outlet 402 may also serve as the humidifying air outlet. In that case, the effect of the control device 80 executing step S96 of FIGS. 12 and 18 is the same as in the second and fourth embodiments in the foot mode and in the face mode and the recovery mode. However, in the face mode and the discharge mode, the amount of air blown from the face air outlet 202 when the humidifier 70 is in operation is greater than the amount of air blown from the face air outlet 202 when the humidifier 70 is not in operation. growing.

(Modification 2)
In the above-described embodiment, the humidifying device 70 alternately executes the discharge mode and the humidification mode. However, as in Patent Document 1, the humidification mode and the discharge mode may be executed in parallel.

(Modification 3)
In the said embodiment, the air blower 3 is arrange | positioned at the air flow upstream of the collection | recovery wind-air outlet 40. FIG. However, the blower 3 may be located downstream of the air flow outlet 40 and the upstream side of the warm air outlet 45. Even in that case, in the discharge mode in which the air is extracted from the warm air outlet 45 to the humidifier 70, the warm feeling comfort of the wind from the air conditioning outlet is reduced by operating the first to fourth embodiments. Can be suppressed.

(Modification 4)
In the said embodiment, the evaporator 4 is raised as an example of the heat exchanger for cooling. However, instead of the evaporator 4, a chiller that cools air by causing heat exchange between cooling water and air may be used as a heat exchanger for cooling. In this case, the cooling operation of the temperature adjusting unit can be strengthened by lowering the temperature of the cooling water in the chiller or increasing the flow rate of the cooling water in the chiller.

(Modification 5)
In the above embodiment, the heater core 5 is given as an example of a heat exchanger for heating. However, instead of the heater core 5, a PTC heater or a condenser in a heat pump cycle may be used as a heat exchanger for heating. In this case, the heating operation of the temperature adjusting unit can be strengthened by increasing the output of the PCT heater or increasing the rotational speed of the compressor in the heat pump cycle.

(Summary)
According to the first aspect shown in a part or all of the above embodiments, in the vehicle air conditioner, the humidifier introduces air in the ventilation path sent by the blower during heating of the vehicle interior. The control device strengthens the heating operation of the temperature adjusting unit as compared with the case where the humidifier does not introduce the air in the ventilation path sent by the blower.

  Moreover, according to the 2nd viewpoint, the said temperature control part has a heat exchanger for cooling (4), a heat exchanger for heating (5), and an air mix door (17). The cooling heat exchanger is provided in the ventilation path to cool the air in the ventilation path. The heating heat exchanger is provided in the ventilation path and heats the air in the ventilation path. The air mix door is heated by the heating heat exchanger by passing through the heating heat exchanger against cold air that is cooled by the cooling heat exchanger and bypasses the heating heat exchanger. Adjust the air volume ratio of the wind. The air conditioning outlet blows air in which the cold air and the warm air are mixed into the vehicle interior. When the humidifier introduces the air in the ventilation path sent by the blower, the control apparatus does not introduce the air in the ventilation path sent by the blower. In contrast, the heating function of the temperature adjusting unit is strengthened by controlling the air mix door to increase the air volume ratio.

  As described above, when the heating operation of the temperature control unit is strengthened by increasing the air volume ratio adjusted by the air mix door, the noise of the air conditioner increases in order to suppress the decrease in the passenger's warm feeling comfort. The possibility can be reduced.

  According to a third aspect, when the humidifier introduces air in the ventilation path sent by the blower during cooling of the vehicle interior, the control device sends the air by the blower. Compared with the case where the humidifier does not introduce the air in the ventilation path, the cooling action of the temperature adjusting unit is strengthened.

  As described above, when the humidifier introduces air in the ventilation path sent by the blower during cooling, the control device strengthens the cooling action of the temperature adjusting unit compared to the case where the humidifier does not. By doing in this way, the passenger | crew's warm feeling comfort impaired by the fall of the airflow from an air-conditioning blower outlet can be supplemented by reinforcement | strengthening of a cooling effect | action. Accordingly, it is possible to suppress a decrease in comfort of the passenger.

  According to a fourth aspect, the temperature adjusting unit includes a cooling heat exchanger (4), a heating heat exchanger (5), and an air mix door (17). The cooling heat exchanger is provided in the ventilation path to cool the air in the ventilation path. The heating heat exchanger is provided in the ventilation path and heats the air in the ventilation path. The air mix door is heated by the heating heat exchanger by passing through the heating heat exchanger against cold air that is cooled by the cooling heat exchanger and bypasses the heating heat exchanger. Adjust the air volume ratio of the wind. The air conditioning outlet blows air in which the cold air and the warm air are mixed into the vehicle interior. When the humidifier introduces the air in the ventilation path sent by the blower, the control apparatus does not introduce the air in the ventilation path sent by the blower. In contrast, the cooling function of the temperature control unit is strengthened by controlling the air mix door to lower the air volume ratio.

  As described above, when the heating operation of the temperature control unit is strengthened by lowering the air volume ratio adjusted by the air mix door, the noise of the air conditioner increases in order to suppress the decrease in the passenger's warm feeling comfort. The possibility can be reduced.

  Further, according to the fifth aspect, the control device of the vehicle air conditioner is configured such that, when the humidifier introduces the air in the ventilation path sent by the blower, the inside of the ventilation path sent by the blower. As compared with the case where the humidifier does not introduce the air, the amount of air blown by the blower is increased.

  Moreover, according to a 6th viewpoint, the said temperature control part has a heat exchanger for cooling (4), a heat exchanger for heating (5), and an air mix door (17). The cooling heat exchanger is provided in the ventilation path to cool the air in the ventilation path. The heat exchanger for heating is provided downstream of the air flow of the cooling heat exchanger in the ventilation path and heats the air in the ventilation path. The air mix door is heated by the heating heat exchanger by passing through the heating heat exchanger against cold air that is cooled by the cooling heat exchanger and bypasses the heating heat exchanger. Adjust the air volume ratio of the wind. The air conditioning outlet blows air in which the cold air and the warm air are mixed into the vehicle interior. The humidifier alternately performs a recovery mode and a discharge mode. In the recovery mode, the humidifier introduces air cooled by the cooling heat exchanger from a position downstream of the cooling heat exchanger and upstream of the heating heat exchanger. Moisture is absorbed from the air. In the discharge mode, the humidifier introduces the air heated by the heating heat exchanger from a position downstream of the air flow of the heating heat exchanger, humidifies the introduced air, and sends it to the vehicle interior. . The controller reduces the air volume ratio when the humidifier is operating in the recovery mode compared to when the humidifier is operating in the discharge mode.

  In this way, when the humidifier is operating in the recovery mode, the temperature sensation between the recovery mode and the humidification mode is reduced by reducing the air volume ratio compared to when the humidifier is operating in the discharge mode. The divergence of is reduced. That is, it is possible to reduce the possibility that a relatively large fluctuation occurs in the temperature of the air blown out from the air conditioning outlet by alternately performing the recovery mode and the discharge mode. As a result, a decrease in warmth comfort can be suppressed.

  According to the seventh aspect, in the discharge mode, the humidifier introduces the air heated by the heating heat exchanger from a position downstream of the air flow of the heating heat exchanger, and humidifies the introduced air. Then, the control device reduces the air volume ratio when the humidifying device is operating in the recovery mode compared to when the humidifying device is operating in the discharge mode.

2 Air-conditioning case 10 Ventilation path 17 Air mix door 70 Humidifier 80 Controller 202 Face outlet 212 Foot outlet 442 Humidifier outlet

Claims (7)

An air-conditioning case (2) surrounding the ventilation path (10) and communicating the air in the ventilation path to an air-conditioning outlet (202, 212) opened in the vehicle interior of the vehicle;
A blower (3) for sending the air in the ventilation path from the air conditioning outlet to the vehicle interior;
A humidifier (70) that introduces air in the ventilation path sent by the blower, humidifies the introduced air, and sends the air into the vehicle compartment from humidification outlets (442, 202) at a position different from the air conditioning outlet. )When,
A temperature adjusting unit (4, 5, 17, 18) provided in the ventilation path to adjust the temperature of the air flowing through the ventilation path;
A control device (80) for controlling the blower and the temperature adjustment unit,
When the humidifier introduces air in the ventilation path sent by the blower during heating of the vehicle interior, the control device converts the air in the ventilation path sent by the blower to the air in the ventilation path. The vehicle air conditioner which strengthens the heating effect | action of the said temperature control part compared with the case where the humidifier is not introduced. The temperature control unit includes a cooling heat exchanger (4), a heating heat exchanger (5), and an air mix door (17),
The cooling heat exchanger is provided in the ventilation path to cool the air in the ventilation path,
The heating heat exchanger is provided in the ventilation path to heat the air in the ventilation path,
The air mix door is heated by the heating heat exchanger by passing through the heating heat exchanger against cold air that is cooled by the cooling heat exchanger and bypasses the heating heat exchanger. Adjust the air volume ratio of the wind,
The air conditioning outlet blows air, in which the cold air and the warm air are mixed, into the vehicle interior,
When the humidifier introduces the air in the ventilation path sent by the blower, the control apparatus does not introduce the air in the ventilation path sent by the blower. The vehicle air conditioner according to claim 1, wherein the heating operation of the temperature adjusting unit is strengthened by controlling the air mix door to increase the air volume ratio.   When the humidifier introduces air in the ventilation path sent by the blower during cooling of the vehicle interior, the control device converts the air in the ventilation path sent by the blower to the air in the ventilation path. The vehicle air conditioner according to claim 1, wherein the cooling function of the temperature control unit is strengthened compared to a case where a humidifier is not introduced. The temperature control unit includes a cooling heat exchanger (4), a heating heat exchanger (5), and an air mix door (17),
The cooling heat exchanger is provided in the ventilation path to cool the air in the ventilation path,
The heating heat exchanger is provided in the ventilation path to heat the air in the ventilation path,
The air mix door is heated by the heating heat exchanger by passing through the heating heat exchanger against cold air that is cooled by the cooling heat exchanger and bypasses the heating heat exchanger. Adjust the air volume ratio of the wind,
The air conditioning outlet blows air, in which the cold air and the warm air are mixed, into the vehicle interior,
When the humidifier introduces the air in the ventilation path sent by the blower, the control apparatus does not introduce the air in the ventilation path sent by the blower. 4. The vehicle air conditioner according to claim 3, wherein the air conditioning door is controlled to reduce the air volume ratio, thereby strengthening a cooling action of the temperature adjusting unit. 5. An air-conditioning case (2) surrounding the ventilation path (10) and communicating the air in the ventilation path to an air-conditioning outlet (202, 212) opened in the vehicle interior of the vehicle;
A blower (3) for sending the air in the ventilation path from the air conditioning outlet to the vehicle interior;
A humidifier (70) that introduces air in the ventilation path sent by the blower, humidifies the introduced air, and sends the air into the vehicle compartment from humidification outlets (442, 202) at a position different from the air conditioning outlet. )When,
A temperature adjusting unit (4, 5, 17, 18) provided in the ventilation path to adjust the temperature of the air flowing through the ventilation path;
A control device (80) for controlling the blower and the temperature adjustment unit,
When the humidifier introduces the air in the ventilation path sent by the blower, the control apparatus does not introduce the air in the ventilation path sent by the blower. Compared with the case, the vehicle air conditioner which increases the ventilation volume of the said air blower. The temperature control unit includes a cooling heat exchanger (4), a heating heat exchanger (5), and an air mix door (17),
The cooling heat exchanger is provided in the ventilation path to cool the air in the ventilation path,
The heating heat exchanger is provided downstream of the cooling heat exchanger in the air passage to heat the air in the air passage,
The air mix door is heated by the heating heat exchanger by passing through the heating heat exchanger against cold air that is cooled by the cooling heat exchanger and bypasses the heating heat exchanger. Adjust the air volume ratio of the wind,
The air-conditioning outlet blows air in which the cold air and the warm air are mixed into the vehicle interior, and the humidifier alternately performs a recovery mode and a discharge mode,
In the recovery mode, the humidifier introduces air cooled by the cooling heat exchanger from a position downstream of the cooling heat exchanger and upstream of the heating heat exchanger. Absorbs moisture from
In the discharge mode, the humidifier introduces the air heated by the heating heat exchanger from a position downstream of the air flow of the heating heat exchanger, humidifies the introduced air, and sends it to the vehicle interior. ,
The control device according to claim 1, 3, or 5, wherein when the humidifier is operating in the recovery mode, the air volume ratio is decreased compared to when the humidifier is operating in the discharge mode. The vehicle air conditioner as described in any one. An air-conditioning case (2) surrounding the ventilation path (10) and communicating the air in the ventilation path to an air-conditioning outlet (202, 212) opened in the vehicle interior of the vehicle;
A blower (3) for sending the air in the ventilation path from the air conditioning outlet to the vehicle interior;
A humidifier (70) that introduces air in the ventilation path sent by the blower, humidifies the introduced air, and sends it to the vehicle interior from a humidification outlet (442) at a position different from the air conditioning outlet ,
A temperature adjusting unit (4, 5, 17, 18) provided in the ventilation path to adjust the temperature of the air flowing through the ventilation path;
A control device (80) for controlling the blower and the temperature adjustment unit,
The temperature control unit includes a cooling heat exchanger (4), a heating heat exchanger (5), and an air mix door (17),
The cooling heat exchanger is provided in the ventilation path to cool the air in the ventilation path,
The heating heat exchanger is provided downstream of the cooling heat exchanger in the air passage to heat the air in the air passage,
The air mix door is heated by the heating heat exchanger by passing through the heating heat exchanger against cold air that is cooled by the cooling heat exchanger and bypasses the heating heat exchanger. Adjust the air volume ratio of the wind,
The air conditioning outlet blows air, in which the cold air and the warm air are mixed, into the vehicle interior,
The humidifier performs the recovery mode and the discharge mode alternately,
In the recovery mode, the humidifier introduces air cooled by the cooling heat exchanger from a position downstream of the cooling heat exchanger and upstream of the heating heat exchanger. Absorbs moisture from
In the discharge mode, the humidifier introduces the air heated by the heating heat exchanger from a position downstream of the air flow of the heating heat exchanger, humidifies the introduced air, and sends it to the vehicle interior. ,
The said control apparatus is a vehicle air conditioner which reduces the said air volume ratio when the said humidifier is operate | moving in the said collection | recovery mode compared with the case where the said humidifier is operating in the said discharge | release mode.

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