WO2016163484A1 - Humidifying device and vehicle air conditioning device - Google Patents

Abstract

A humidifying device applied to an air conditioning unit (10) having a cooling unit (13) that cools blown air, said cooling unit being housed inside an air conditioning case (11) constituting a ventilation path for air blown inside a vehicle compartment. The humidifying device comprises: an adsorber (60) having an adsorbing material (61) that adsorbs and eliminates moisture; an adsorption case (54) housing the adsorber and surrounding a moisture-absorption space (541a) and a moisture-release space (541b), said moisture-absorption space (541a) causing cooled air cooled by a cooling unit to flow therethrough and causing moisture included in cooled air to be adsorbed by the adsorbing material and said moisture-release space (541b) causing internal air guided thereto from inside the vehicle compartment to flow therethrough and causing the moisture adsorbed by the adsorbing material to be released; a humidification duct (571) that guides, to inside the vehicle compartment, humidified air being internal air humidified by the moisture released in the moisture-release space; a dehumidified air duct (573) that guides dehumidified air being cooled air having the moisture removed therefrom in the moisture-absorption space; and a ventilator (55) that causes internal air to flow into the moisture-release space and causes humidified air to flow from the moisture-release space to the humidification duct.

Description

Humidifier and air conditioner for vehicle Cross-reference to related applications

This application is based on Japanese Patent Application No. 2015-80160 filed on April 9, 2015, the description of which is incorporated herein by reference.

The present disclosure relates to a humidifier applied to an air conditioning unit, and a vehicle air conditioner including the air conditioning unit and the humidifier.

Conventionally, a humidifier that blows humidified air into a vehicle interior using air in an air conditioning case of a vehicle air conditioning unit is known. For example, in the air conditioning unit described in Patent Document 1, a moisture permeable tube that vaporizes water is disposed in a duct that guides air whose temperature has been adjusted in an air conditioning case to the passenger compartment. In this air conditioning unit, the water stored in the tank is supplied to the moisture permeable tube, so that the air blown into the passenger compartment is humidified.

JP 2005-282929 A

In such a technique, the vehicle interior is humidified by humidifying the air whose temperature is adjusted in the air conditioning case. Therefore, the presence of the humidification function has a great influence on the air conditioning function of the air conditioning unit. More specifically, the influence of humidification on the air heated by the heater core in the air conditioning case is large.

In view of the above points, the present disclosure provides a technique for blowing humid air into a vehicle interior by a method other than humidifying air in an air conditioning case in a humidifier using air in an air conditioning case of an air conditioning unit for a vehicle. With the goal.

According to one aspect for achieving the above object, the humidifier is provided in an air conditioning unit in which a cooling unit that cools the blown air is housed in an air conditioning case that forms a ventilation path of the blown air into the vehicle interior. Applied. The humidifier accommodates the adsorber having an adsorbent that adsorbs and desorbs moisture, and the adsorber, and distributes the moisture contained in the cooling air by circulating the cooling air cooled by the cooling unit. A moisture absorbing space to be adsorbed by the adsorbent, an adsorption case surrounding the moisture releasing space for allowing the inside air introduced from the passenger compartment to circulate and desorbing the moisture adsorbed to the adsorbent, and the desorbing in the moisture releasing space A humidifying duct that guides humidified air that is the inside air humidified by moisture into the vehicle interior, a dehumidifying air duct that guides the dehumidified air that is the cooling air deprived of moisture in the moisture absorbing space, and releases the inside air. And a blower for flowing the humidified air from the moisture releasing space to the humidifying duct while flowing into the humid space.

In this way, by using the cooling air in the air conditioning case, the moisture contained in the cooling air is adsorbed to the adsorbent, and the target to be humidified with the moisture desorbed from the adsorbent is used as the inside air, Humidified air can be blown into the passenger compartment by a method other than humidifying the air. Moreover, the inside air used as a humidification object can be guide | induced appropriately by providing the air blower which flows humid air into a humidification space while flowing inside air into a moisture release space.

It is typical sectional drawing which shows the whole structure of a vehicle air conditioner provided with the humidification apparatus which concerns on 1st Embodiment. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. It is a perspective view which shows the principal part of the humidification apparatus which concerns on 1st Embodiment. FIG. 4 is an arrow view in a direction indicated by an arrow IV in FIG. 3. It is VV sectional drawing of FIG. 1, FIG. It is VI-VI sectional drawing of FIG. It is a block diagram which shows the structure of a humidifier and the control apparatus of an air conditioning unit. It is a flowchart of the control process of the humidifier which a control apparatus performs. It is a figure which shows the air which flowed in between the blades at a certain time. It is a figure which shows the air which flowed in between the blades at the time later than FIG. It is typical sectional drawing which shows the whole structure of a vehicle air conditioner provided with the humidification apparatus which concerns on 2nd Embodiment.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that, in each of the following embodiments, parts that are the same as or equivalent to the matters described in the preceding embodiment are denoted by the same reference numerals, and the description thereof may be omitted. Moreover, in each embodiment, when only a part of the component is described, the component described in the preceding embodiment can be applied to the other part of the component.

(First embodiment)
In this embodiment, an example will be described in which a vehicle air conditioner that performs air conditioning of a vehicle interior is applied to a vehicle that obtains driving force for vehicle travel from an internal combustion engine (not shown). As shown in FIG. 1, the vehicle air conditioner includes an air conditioning unit 10 and a humidifier 50 as main components. In addition, the arrow which shows the top and the bottom shown in FIG. 1 has shown the up-down direction at the time of mounting a vehicle air conditioner in a vehicle. The same applies to other drawings.

First, the air conditioning unit 10 will be described. The air conditioning unit 10 is disposed in the vehicle interior. More specifically, the air conditioning unit 10 is disposed in the dashboard and below the instrument panel (ie, the instrument panel). The air conditioning unit 10 includes an evaporator 13, a heater core 14, and the like inside an air conditioning case 11 that forms an outer shell thereof.

The air conditioning case 11 constitutes a ventilation path for blown air to be blown into the vehicle interior. The air conditioning case 11 of the present embodiment is formed of a resin (for example, polypropylene) having a certain degree of elasticity and excellent in strength.

Here, FIG. 2 shows a schematic cross section of the air conditioning case 11 when the air conditioning case 11 is cut in a direction orthogonal to the air flow direction. As shown in FIG. 2, in the air conditioning case 11 of the present embodiment, a ventilation path through which blown air flows is defined by a bottom surface portion 11a, a top surface portion 11b, and a side surface portion 11c. In FIG. 2, for the sake of convenience of explanation, an example in which a drain discharge unit 111 and a cold air derivation unit 112, which will be described later, are arranged in the left-right direction on the paper is illustrated, but it is needless to say that the present invention is not limited thereto.

The bottom surface portion 11a is a portion constituting a lower wall surface facing the bottom portions of the evaporator 13 and the heater core 14 in the air conditioning case 11. Further, the upper surface part 11 b is a part constituting an upper wall surface facing the bottom surface part 11 a in the air conditioning case 11. Furthermore, the side surface portion 11 c is a portion constituting a wall surface other than the bottom surface portion 11 a and the top surface portion 11 b in the air conditioning case 11.

Referring back to FIG. 1, an air-conditioning case 11 is provided with an inside / outside air switching box 12 for switching and introducing outside air and vehicle interior air (that is, inside air) on the most upstream side of the air flow. The inside / outside air switching box 12 is formed with an outside air introduction port 121 for introducing outside air and an inside air introduction port 122 for introducing vehicle interior air. The inside air introduction port 122 is opened inside the dashboard, and therefore the vehicle interior air introduced from the inside air introduction port 122 is more specifically the air inside the dashboard.

Furthermore, inside / outside air switching box 12 is arranged with inside / outside air switching door 123 that adjusts the opening area of each inlet 121, 122 to change the ratio between the amount of outside air introduced and the amount of inside air introduced. Yes. The inside / outside air switching door 123 is rotatably disposed between the outside air introduction port 121 and the inside air introduction port 122. The inside / outside air switching door 123 is driven by an actuator (not shown).

The evaporator 13 which comprises the cooling part which cools the ventilation air to the vehicle interior is arrange | positioned in the downstream of the air flow of the inside / outside air switching box 12. The evaporator 13 is a heat exchanger that absorbs the latent heat of evaporation of the low-temperature refrigerant circulating inside from the blown air and cools the blown air. The evaporator 13 constitutes a vapor compression refrigeration cycle together with a compressor, a condenser, and a decompression mechanism (not shown).

On the downstream side of the air flow of the evaporator 13, there is a hot air passage 16 through which the air cooled by the evaporator 13 flows to the heater core 14 side, and a cold air bypass that flows the air cooled by the evaporator 13 bypassing the heater core 14. A passage 17 is formed.

The heater core 14 is a heat exchanger that heats blown air using engine cooling water (not shown) as a heat source. In the present embodiment, the heater core 14 constitutes a heating unit that heats the blown air.

An air mix door 18 is rotatably disposed between the evaporator 13 and the heater core 14. The air mix door 18 is driven by an actuator (not shown) to adjust the ratio of the air flowing through the hot air passage 16 and the air flowing through the cold air bypass passage 17 to adjust the temperature of the blown air to be blown into the vehicle interior. It is a member to do.

An air-conditioning blower 19 is disposed on the downstream side of the hot air passage 16 and the cold air bypass passage 17. The air-conditioning blower 19 is a device that generates an air flow that blows into the passenger compartment inside the air-conditioning case 11. The air conditioner blower 19 includes a blower case 191, an air conditioner fan 192, an air conditioner motor 193, and the like.

The blower case 191 constitutes a part of the air conditioning case 11. The blower case 191 is formed with an air suction port 191a and a discharge port 191b for discharging the air sucked through the suction port 191a.

The air conditioning fan 192 sucks air on the downstream side of the air flow in the hot air passage 16 and the cold air bypass passage 17 through the suction port 191a and discharges it from the discharge port 191b. The air-conditioning fan 192 of this embodiment is configured by a centrifugal fan that blows air sucked in from the axial direction outward in the radial direction. The air conditioning fan 192 is rotationally driven by the air conditioning motor 193. The air-conditioning fan 192 is not limited to a centrifugal fan, and may be an axial fan, a cross-flow fan, or the like.

The air conditioning duct 20 is connected to the discharge port 191 b of the air conditioning blower 19. The air conditioning duct 20 is a member that guides blown air to the face air outlet 20a, the foot air outlet 20b, and the defroster air outlet 20c at the downstream end of the air flow of the air conditioning duct 20.

The face air outlet 20a is an air outlet for blowing air to the upper body side of the occupant, and is disposed, for example, on the surface of the dashboard facing the upper end of the driver's seat or the upper end of the passenger seat. The foot air outlet 20b is an air outlet for blowing air toward the lower body side of the occupant, and is disposed, for example, on the surface of the dashboard facing the lower side of the driver seat or the lower side of the passenger seat. The defroster air outlet 20c is an air outlet that blows out air toward the window glass on the front surface of the vehicle. For example, the defroster air outlet 20c is disposed on the surface of the dashboard that is multifaceted with the window glass on the front surface of the vehicle. Further, the air conditioning duct 20 or the air blowing case 191 is provided with a mode switching door (not shown) for setting the air blowing mode from each outlet. The mode switching door is driven by an actuator (not shown).

Also, there are face mode, bi-level mode, foot mode, and foot defroster mode as outlet modes. The face mode is a mode in which the face air outlet 20a is fully opened and air is blown out from the face air outlet 20a toward the upper body of the passenger in the passenger compartment. The bi-level mode is a mode in which both the face air outlet 20a and the foot air outlet 20b are opened and air is blown toward the upper body and the feet of the passengers in the passenger compartment. The foot mode is a mode in which air is mainly blown out from the foot outlet 20b by fully opening the foot outlet 20b and opening the defroster outlet 20c by a small opening. The foot defroster mode is a mode in which the foot outlet 20b and the defroster outlet 20c are opened to the same extent and air is blown out from both the foot outlet 20b and the defroster outlet 20c.

Here, in the air conditioning case 11 of the present embodiment, a drain discharge portion 111 and a cold air derivation portion 112 are formed on the bottom surface portion 11a. The drain discharge part 111 is an opening for discharging condensed water generated in the evaporator 13 to the outside of the vehicle. The drain discharge part 111 of this embodiment is formed in the site | part facing the lower end part in the evaporator 13 in the bottom face part 11a of the air-conditioning case 11. FIG.

The cold air derivation unit 112 is an opening through which a part of the blown air (that is, cooling air) cooled by the evaporator 13 in the air conditioning case 11 is led out of the air conditioning case 11. The cold air derivation unit 112 of the present embodiment is formed in a portion between the evaporator 13 and the heater core 14 in the bottom surface part 11 a of the air conditioning case 11. More specifically, the cool air derivation unit 112 is formed on the bottom surface part 11 a located between the drain discharge unit 111 and the heater core 14. It should be noted that the cold air derivation unit 112 is not closed by the air mix door 18 regardless of the position of the air mix door 18.

Here, the air conditioning unit 10 of the present embodiment employs a so-called suction type configuration in which the air conditioning blower 19 is arranged on the air flow downstream side of the air conditioning case 11. For this reason, the pressure inside the air conditioning case 11 is lower than the pressure outside the air conditioning case 11. The pressure outside the air conditioning case 11 is equal to the atmospheric pressure.

Subsequently, the humidifier 50 will be described. The humidifier 50 is a component formed separately from the air conditioning unit 10, and is arranged in the dashboard and in the lower part of the instrument panel, like the air conditioning unit 10. More specifically, the humidifying device 50 is on the lower side of the air conditioning case 11 so that the cold air derivation unit 112 of the air conditioning case 11 and a cold air suction unit 52 of the humidifying device 50 described later are close to each other. Is disposed at a position close to a portion where the evaporator 13 is disposed.

The humidifier 50 includes an adsorption case 51, a humidifier blower 55, an adsorber 60, a driving member 70, two first partition members 542, and a second partition member 543. The adsorption case 51 is a resin casing that forms the outer shell of the humidifying device 50. The adsorption case 51 accommodates the adsorber 60 in the inside thereof and constitutes a ventilation path for the blown air. The suction case 51 is a component separated from the air conditioning case 11 and separated from the air conditioning case 11. The adsorption case 51 includes a cold air suction part 52, an inside air suction part 53, an adsorber housing part 54, and an air discharge part 56.

The cold air suction part 52 is a bottomless hollow rectangular pipe, and is connected to a first external introduction port 52a that communicates with the outside of the humidifying device 50, and a first internal communication that communicates with a moisture absorption space 541a of the adsorber housing part 54 described later. The mouths 52b are formed at both ends. The cold air suction portion 52 surrounds a rectangular parallelepiped-shaped air flow path between the first external introduction port 52a and the first internal communication port 52b.

Further, the cold air suction portion 52 has a cold air door 522 that is rotatably disposed between the first external introduction port 52a and the first internal communication port 52b. The cold air door 522 is driven by an actuator (not shown). The cold air door 522 communicates the first external introduction port 52a and the first internal communication port 52b in the cold air suction portion 52 when the cold air door 522 is open, and in the cold air suction portion 52 when the cold air door 522 is closed. The communication between the first external introduction port 52a and the first internal communication port 52b is blocked.

That is, the cold air suction part 52 is an opening / closing mechanism that switches opening and closing of the cold air door 522 that guides the cooling air cooled by the evaporator 13 to the moisture absorption space. Note that the shape of the cold air door 522 and the shape of the air flow path surrounded by the cold air suction portion 52 are not limited to the above.

Further, a cold air intake duct 521 for introducing the cooling air cooled by the evaporator 13 is connected to the first external introduction port 52a. The cold air intake duct 521 connects the first external introduction port 52 a of the cold air intake part 52 and the cold air outlet part 112 of the air conditioning case 11. The cold air intake duct 521 is a component formed separately from the air conditioning case 11 and the suction case 51, and is configured to be detachable from the cold air derivation unit 112 by a connecting member such as a snap fit (not shown).

The inside air suction part 53 is a bottomless cylindrical pipe, and is connected to a second external introduction port 53a that communicates with the outside of the humidifying device 50 and a second moisture communication space 541b of the adsorber housing part 54 described later. A mouth 53b is formed. The inside air suction portion 53 surrounds a cylindrical air flow path between the second external introduction port 53a and the second internal communication port 53b.

Note that the second external introduction port 53a of the inside air suction portion 53 is open inside the dashboard, and therefore, more specifically, the vehicle interior air enters the inside air suction portion 53 from the second external introduction port 53a. Air inside the dashboard is introduced. Further, the shape of the inside air suction portion 53 and the shape of the air flow path surrounded by the inside air suction portion 53 are not limited to the above.

The adsorber accommodating portion 54 is a member of a portion that accommodates the adsorber 60 in the adsorption case 51. As shown in FIGS. 3 and 4, the adsorber accommodating portion 54 of the present embodiment has a hollow cylindrical outer shape. The adsorber accommodating portion 54 has an adsorber accommodating space 541 of the adsorber 60 formed therein.

In the adsorber accommodating part 54, there are a space through which the cooling air introduced through the cold air suction part 52 circulates and a space through which the inside air introduced through the inside air suction part 53 circulates as the adsorber accommodating space 541. Is set.

Specifically, the adsorber housing space 541 includes a space in which cooling air circulates and an internal air by the first and second partition members 542 and 543 provided on both the upstream side and the downstream side of the air flow of the adsorber 60. The space where circulates is partitioned.

The first partition member 542 is a member that is provided on the upstream side of the air flow of the adsorber 60 and partitions the space on the upstream side of the air flow of the adsorber 60 between the flow path of the cooling air and the flow path of the inside air. The first partition member 542 is integrally formed on the inner side of the upper surface portion of the adsorber accommodating portion 54 (that is, the side facing the adsorber 60).

More specifically, the first partition member 542 includes a ring portion immediately outside the rotation shaft 71 described later, and the ring portion to the outermost peripheral portion farthest from the rotation shaft 71 in the adsorber housing space 541. And two plate members extending in the radial direction around the rotation shaft 71. The ring portion is not fixed to the rotating shaft 71 and is not in contact with the rotating shaft 71. The angle formed by the two plate members around the rotation axis 71 is, for example, 120 °.

The second partition member 543 is a member that is provided on the downstream side of the air flow of the adsorber 60 and partitions the space on the downstream side of the air flow of the adsorber 60 from the cooling air flow path and the inside air flow path. The second partition member 543 is integrally formed on the inner side of the bottom surface portion of the adsorber housing portion 54 (that is, the side facing the adsorber 60).

More specifically, the second partition member 543 is a member in which the first upstream partition portion 543a, the first downstream partition portion 543b, the second upstream partition portion 543c, and the ring portion 543e are integrally formed.

The ring portion 543 e is a member that surrounds the rotation shaft 71 in the circumferential direction just outside the rotation shaft 71. The ring portion 543 e is integrally formed on the inside of the bottom surface portion of the adsorber housing portion 54, and is not fixed to the rotating shaft 71 and is not in contact with the rotating shaft 71.

The first upstream partition portion 543a is a plate member that extends in the radial direction around the rotation shaft 71 from the ring portion 543e to the outermost peripheral portion farthest from the rotation shaft 71 in the adsorber housing space 541. The first upstream partition portion 543a is integrally formed on the inside of the bottom surface portion of the adsorber housing portion 54.

The first downstream partition portion 543b is a plate member that extends from the end of the ring portion 543e and the first upstream partition portion 543a opposite to the adsorber 60 so as to approach the humidifier blower 55 and away from the adsorber 60. . The first upstream partition portion 543a and the first downstream partition portion 543b form the same single flat plate. The first downstream partition 543 b extends to the inside of the humidifier blower 55 through a hole surrounded by the air discharge unit 56. More specifically, the inside of the humidifier blower 55 here is very close to the fan boss 552a in the fan suction space 555 described later. Therefore, the length in the radial direction around the rotation shaft 71 of the first downstream partition portion 543b is shorter than that of the first upstream partition portion 543a.

The second upstream partitioning portion 543c is a plate member that extends in the radial direction around the rotation shaft 71 from the ring portion 543e to the outermost peripheral portion farthest from the rotation shaft 71 in the adsorber housing space 541. The second upstream partition portion 543c is integrally formed on the inside of the bottom surface portion of the adsorber housing portion 54.

The second downstream partition portion 543d is a plate member that extends from the end of the ring portion 543e and the second upstream partition portion 543c opposite to the adsorber 60 so as to approach the humidifier blower 55 and away from the adsorber 60. . The second upstream partition 543c and the second downstream partition 543d form the same single flat plate. The second downstream partition portion 543 d extends to the inside of the humidifier blower 55 through a hole surrounded by the air discharge portion 56. More specifically, the inside of the humidifier blower 55 here is very close to the fan boss 552a in the fan suction space 555 described later. Therefore, the radial length around the rotation shaft 71 of the second downstream partition portion 543d is shorter than that of the second upstream partition portion 543c. The first downstream partition 543b and the second downstream partition 543d are integrated between the rotation shaft 71 and the humidifier blower 55 on the extension line of the rotation center axis of the rotation shaft 71 and on the fan shaft core CL described later. Connected to.

In the adsorber housing 54, an adsorber 60 is disposed so as to straddle both the space through which the cooling air circulates and the space through which the inside air circulates. The space through which the cooling air flows in the adsorber housing 54 constitutes a moisture absorption space 541a that adsorbs moisture contained in the cooling air to the adsorbent 61 of the adsorber 60. In addition, the space where the inside air in the adsorber housing 54 circulates constitutes a moisture releasing space 541b that desorbs moisture adsorbed by the adsorbent 61 of the adsorber 60 and humidifies the inside air.

Here, in the adsorbent 61, the moisture adsorption rate per unit mass tends to be about twice as slow as the moisture desorption rate per unit mass. If the moisture adsorbed on the adsorbent 61 is small, the amount of moisture desorbed from the adsorbent 61 is also small, and there is a concern that it is difficult to ensure a sufficient amount of humidification in the passenger compartment by the humidifier.

In consideration of this point, in the present embodiment, the adsorber of the adsorber 60 so that the amount of the adsorbent 61 present in the moisture absorption space 541a is larger than the amount of the adsorbent 61 present in the moisture release space 541b. The housing space 541 is partitioned by first and second partition members 542 and 543. Specifically, by using members bent in an L shape as the first and second partition members 542 and 543, the moisture absorption space 541 a is 2 in the adsorber accommodation space 541 of the adsorber 60 than the moisture release space 541 b. The setting is about twice as large.

More specifically, the angle formed by the two plate members constituting the first partition member 542 toward the moisture release space 541b with the rotation shaft 71 as the center is 120 °. In the second partition member 543, the angle formed between the flat plate formed by the first upstream partition portion 543a and the flat plate formed by the second upstream partition portion 543c on the moisture release space 541b side with the rotation shaft 71 as the center is 120. °. The details of the adsorber 60 will be described later.

Returning to FIG. 1, the air discharge part 56 is a member that forms a single hole communicating with both the moisture absorption space 541 a and the moisture release space 541 b of the adsorber housing part 54. The air discharge unit 56 discharges the dehumidified air from which moisture has been removed through the moisture absorption space 541a and the humidified air that has been humidified through the moisture release space 541b to the outside of the adsorption case 51 through this hole. . The humidified air corresponds to an example of the first fluid, and the dehumidified air corresponds to an example of the second fluid.

The air discharge unit 56 is connected to the humidifier blower 55 so that the dehumidified air and the humidified air discharged to the outside of the adsorption case 51 through the hole are sucked into the humidifier blower 55. .

The humidifier blower 55 sucks the dehumidified air and humidified air from the adsorption case 51 through the hole surrounded by the air discharge part 56, blows out the sucked humidified air to the humidifying duct 571, and removes the sucked dehumidified air into the dehumidified air duct. Exhale to 573.

The humidifying duct 571 guides humidified air that is humidified in the moisture releasing space 541b of the adsorption case 51 to the vehicle interior. The humidifying duct 571 of the present embodiment is a separate component from the air conditioning duct 20 that is a blowout duct of the air conditioning unit 10.

Further, the humidifying duct 571 faces the headrest of the driver's seat at a part where the outlet opening 572, which is the downstream end thereof, exists in the vicinity of the occupant's face on the instrument panel (for example, near the meter in the instrument panel). It is open. And the blowing opening part 572 is opening in the position away from the above-mentioned face blower outlet 20a, the foot blower outlet 20b, and the defroster blower outlet 20c (for example, 10 cm or more). Thereby, the humidified air flowing through the humidifying duct 571 is blown out toward the occupant's face without being disturbed by the air discharged from the blowout opening 572 and from the blowout ports 20a, 20b, and 20c. The space around the occupant's face is humidified.

In this embodiment, a duct having a channel diameter of φ50 mm and a channel length of about 1000 mm is employed as the humidifying duct 571. According to this, the humidified air having a high temperature and a high relative humidity that has passed through the adsorber 60 is cooled by exchanging heat with the air outside the humidifying duct 571, so that the relative humidity of the humidified air can be increased. It becomes possible.

Further, the outlet opening 572 of the humidifying duct 571 is set to have an opening diameter and a distance to the occupant's face so that the blown air reaches the face in a high relative humidity state. The blowing opening 572 of the present embodiment has an opening diameter of 75 mm so that the air reaching the face has a relative humidity of about 40%, a temperature of about 20 ° C., and a wind speed of about 0.5 m / s. The air is blown out at an air volume of about 10 m ³ / h (ie, wind speed of 0.6 m / s). The distance to the passenger's face is set to about 600 mm. The wind speed of 0.6 m / s is 10% or less of the minimum air volume of the air exiting from the air outlets 20a, 20b, 20c of the air conditioning unit 10. That is, in the present embodiment, a duct in which the opening area of the blowing opening 572 is larger than the channel cross-sectional area of the channel reaching the blowing opening 572 is used as the humidifying duct 571. According to the humidifying duct 571 configured as described above, the wind speed reaching the occupant is as low as 1 m / s or less, so that it is possible to suppress the diffusion of the humidified air and to ensure that the humidified air reaches the face. it can.

Furthermore, the humidifying duct 571 of the present embodiment is configured to be thinner than the cold air intake duct 521 so that the air flowing inside and the air existing outside can exchange heat.

The dehumidified air duct 573 is a duct that guides dehumidified air that is cooling air from which moisture has been removed in the moisture absorbing space 541 a of the adsorption case 51. An opening 574 of the dehumidified air duct 573 opened before the dehumidified air is guided by the dehumidified air duct 573 is opened inside the dashboard, thereby preventing the dehumidified air from blowing directly to the passenger. .

In this case, the destination where the dehumidified air is guided by the dehumidified air duct 573 is inside the dashboard in the vehicle interior, but the destination where the dehumidified air is guided by the dehumidified air duct 573 and blows out from the opening 574 is as shown in FIG. It may be outside the vehicle or inside the air conditioning case 11.

The adsorber 60 has a structure in which an adsorbent 61 that adsorbs and desorbs moisture (that is, releases moisture) is supported on a metal plate-like member (not shown). Each plate-like member is laminated and arranged at intervals so that a flow path along the axial direction of the rotation shaft 71 described later is formed between the plate-like members. The adsorber 60 of the present embodiment increases the contact area between the blown air and the adsorbent 61 by stacking and arranging the plate-like members carrying the adsorbent 61.

The adsorbent 61 employs a polymer adsorbent that absorbs and releases moisture according to a relative humidity difference. When air having a high relative humidity passes through, the water adsorbs moisture in the air, and when air having a low relative humidity passes through the air, It has the characteristic of releasing moisture inside. As the adsorbent 61, the amount of moisture adsorbed when the relative humidity of the blown air passing through the adsorber 60 is changed by 50% within the temperature range assumed as the temperature of the blown air (that is, the amount of adsorption). It is preferable to have an adsorption characteristic that changes at least 3 wt%. More preferably, the adsorbent 61 preferably has an adsorbing characteristic in which the adsorbing amount changes in the range of 3 wt% to 10 wt% under the same conditions as described above.

The adsorber 60 of this embodiment is accommodated in an adsorber accommodating portion 54 whose internal space is partitioned into a moisture absorbing space 541a and a moisture releasing space 541b. As described above, the adsorber 60 is disposed so as to straddle both the moisture absorbing space 541a and the moisture releasing space 541b, but the amount of moisture adsorbable by the adsorbent 61 existing in the moisture absorbing space is finite. . Further, the amount of moisture desorbed by the adsorbent 61 present in the moisture release space 541b is also finite.

Therefore, the humidifying device 50 is provided with a drive member 70 as a moving mechanism for moving the adsorbent 61 of the adsorber 60 between the moisture absorbing space 541a and the moisture releasing space 541b. The drive member 70 moves at least a part of the adsorbent 61 present in the moisture release space 541b of the adsorber 60 to the hygroscopic space 541a and at least a part of the adsorbent 61 present in the hygroscopic space 541a of the adsorber 60. It is a device moved to the moisture release space 541b.

The drive member 70 has a configuration that includes a rotation shaft 71 that passes through the center of the suction device 60 and is connected to the suction device 60, and an electric motor 72 with a speed reducer that rotationally drives the rotation shaft 71. The rotating shaft 71 is rotatably supported by the suction case 51, and rotates together with the suction device 60 inside the suction case 51 when a driving force is transmitted from the electric motor 72. Thereby, a part of the adsorbent 61 in the moisture release space 541b moves to the moisture absorption space 541a in the adsorber 60, and a part of the adsorbent 61 in the moisture absorption space 541a moves to the moisture release space 541b in the adsorber 60. .

The electric motor 72 of the present embodiment continuously drives the rotating shaft 71 to rotate in one direction. As a result, the adsorbent 61 from which moisture has been sufficiently desorbed in the moisture releasing space 541b of the adsorber 60 is moved to the moisture absorbing space 541a, and the adsorbent 61 having sufficiently adsorbed moisture in the moisture absorbing space 541a of the adsorber 60 is released. It can be moved to the wet space 541b.

Here, the details of the humidifier blower 55 will be described. As shown in FIGS. 5 and 6, the humidifier blower 55 includes a motor 551, a single centrifugal fan 552, and a scroll fan casing 553. The humidifier blower 55 sucks dehumidified air and humidified air in the direction of the fan shaft core CL, divides the dehumidified air and humidified air in a plurality of directions away from the fan shaft core CL, and blows them out to different spaces. It is a resin member for mediating heat exchange.

A part of the motor 551 is accommodated in the centrifugal fan 552 and an output shaft is connected to the centrifugal fan 552. By transmitting a rotational driving force to the centrifugal fan 552 via the output shaft, the centrifugal fan 552 is connected to the centrifugal fan 552. Rotate around the axis CL.

The centrifugal fan 552 is a centrifugal multiblade fan, that is, an impeller of a centrifugal blower, more specifically, a turbo fan. The centrifugal fan 552 includes a fan boss 552a, a plurality of blades 552b, and a top plate 552c. The centrifugal fan 552 sucks dehumidified air and humidified air in the direction of the fan shaft core CL and blows them in a plurality of directions away from the fan shaft core CL, and mediates heat exchange between the dehumidified air and the humidified air.

The fan boss 552a corresponding to an example of the connecting member is a plate-like member connected to the output shaft of the motor 551. The fan boss 552a has a thermal conductivity of 10 W / (m · K) or more. For example, the fan boss 552a may be made of a metal having a thermal conductivity of 10 W / (m · K) or higher, or a material other than a metal having a thermal conductivity of 10 W / (m · K) or higher (for example, carbon (Nanofiber, resin).

The plurality of blades 552b are flat plates arranged circumferentially at equal intervals in the circumferential direction around a columnar fan suction space 555 centered on the fan axis CL. The fan suction space 555 is a space including the fan shaft center CL and a space near the fan shaft center CL. Each blade 552b guides air in a direction perpendicular or non-parallel to the fan boss 552a and away from the fan axis CL (that is, does not become perpendicular to the radial direction around the fan axis CL). And so on) and connected to the fan boss 552a. The thermal conductivity of each of the blades 552b is 10 W / (m · K) or more. For example, each of the blades 552b may be made of a metal having a thermal conductivity of 10 W / (m · K) or more, or a material other than a metal having a thermal conductivity of 10 W / (m · K) or more (for example, (Carbon nanofiber, resin). The plurality of blades 552b have the same size, shape, and surface area.

The top plate 552c corresponding to an example of the connection member is a ring-shaped member facing the fan boss 552a with the blade 552b interposed therebetween, and all the blades 552b are connected and fixed to the top plate 552c. The thermal conductivity of the top plate 552c is 10 W / (m · K) or more. For example, the top plate 552c may be made of a metal having a thermal conductivity of 10 W / (m · K) or higher, or a material other than a metal having a thermal conductivity of 10 W / (m · K) or higher (for example, carbon (Nanofiber, resin). Alternatively, the thermal conductivity of the top plate 552c may be less than 10 W / (m · K).

Note that the thickness of the fan boss 552a is larger than the thickness of each of the blades 552b and the top plate 552c. The heat capacity of the fan boss 552a is larger than the heat capacity of the entire blades 552b and the top plate 552c. Therefore, naturally, the heat capacity of the fan boss 552a is larger than any one of the plurality of blades 552b. Further, the heat capacity of the fan boss 552a is larger than the heat capacity of the top plate 552c.

The scroll fan casing 553 is a housing that houses a part of the motor 551 and the centrifugal fan 552. The scroll fan casing 553 may be made of resin or metal, but has lower thermal conductivity than the fan boss 552a, the blade 552b, and the top plate 552c. The scroll fan casing 553 has a shape in which the dehumidified air that has passed through the moisture absorbing space 541a and the humidified air that has passed through the moisture releasing space 541b are independently blown to the dehumidified air duct 573 and the humidifying duct 571, respectively.

The scroll fan casing 553 has an upper bottom wall 553a, a lower bottom wall 553b, and an outer peripheral wall 553c. The upper bottom wall 553a is a plate-like member corresponding to the upper lid of the scroll fan casing 553, and has an opening connected to the air discharge portion 56 at the inner peripheral end thereof. The opening is a member that forms a hole for introducing dehumidified air and humidified air from the adsorber housing space 541. The lower bottom wall 553b is a plate-shaped member that faces the upper bottom wall 553a in the direction of the fan shaft core CL.

The outer peripheral wall 553c is a plate-shaped member that forms the outer periphery of the scroll fan casing 553, and is connected to the outer peripheral end of the upper bottom wall 553a at the upper end thereof (that is, the end closer to the adsorber accommodating portion 54), The lower end (that is, the end far from the adsorber housing 54) is connected to the outer peripheral end of the lower bottom wall 553b. Therefore, the outer peripheral wall 553c is a member that connects the upper bottom wall 553a and the lower bottom wall 553b.

The inner surface of the outer peripheral wall 553c on the fan housing space side (that is, the space housing the centrifugal fan 552) includes two scroll nose portions, a first nose portion N1 and a second nose portion N2. A first scroll inner wall surface S1 and a second scroll inner wall surface S2 are provided. The first scroll inner wall surface S1 corresponds to an example of a first inner wall surface, and the second scroll inner wall surface S2 corresponds to an example of a second inner wall surface.

The first nose portion N1 is connected to an end portion of the first scroll inner wall surface S1 opposite to the rotation direction of the centrifugal fan 552. The second nose portion N2 is connected to the end portion of the second scroll inner wall surface S2 in the direction opposite to the rotation direction of the centrifugal fan 552.

The first nose portion N1 forms a boundary between the inner surface of the outer peripheral wall 553c and the dehumidified air duct 573 and is a scroll start portion.

The second nose portion N2 forms a boundary between the inner surface of the outer peripheral wall 553c and the humidifying duct 571 and is a winding start portion of the scroll.

The first scroll inner wall surface S1 extends from the first nose portion N1 to the humidifying duct 571 so that the distance from the fan axis CL increases in accordance with a well-known logarithmic spiral function with respect to the winding angle about the rotation axis S. The wall surface extends around the fan shaft core CL in a spiral shape.

The second scroll inner wall surface S2 extends from the second nose portion N2 to the dehumidified air duct 573 so that the distance from the fan shaft core CL increases according to a well-known logarithmic spiral function with respect to the winding angle about the rotation axis S. The wall surface extends around the fan shaft core CL in a spiral shape.

By rotating the plurality of blades 552b around the fan axis CL, each of the plurality of blades 552b is between the fan shaft core CL and the first inner wall surface S1 in some cases, and the fan shaft core in other cases. Between CL and the second inner wall surface S2.

Thus, the scroll fan casing 553 has two outlets, one of the two outlets is connected to the humidifying duct 571, and the other outlet is connected to the dehumidified air duct 573. ing.

Here, the relationship between the shape of the scroll fan casing 553, the humidifying duct 571, and the dehumidified air duct 573 and the arrangement of the first downstream partitioning portion 543b and the second downstream partitioning portion 543d of the second partitioning member 543 will be described.

As shown in FIGS. 5 and 6, the first downstream partition 543 b and the second downstream partition 543 d are both disposed in the fan suction space 555. As a result, both the first downstream partition 543b and the second downstream partition 543d are sucked into the fan suction space 555 by passing the humid air through the centrifugal fan 552 and the dehumidified air through the centrifugal fan 552. Partition into space.

More specifically, as shown in FIG. 5, directions 81 and 82 in which the first downstream partition portion 543b and the second downstream partition portion 543d extend straight from the fan shaft core CL in a plane perpendicular to the fan shaft core CL are formed. The angle is 120 °. The direction 81 is also the direction of the end portion of the first downstream partitioning portion 543b that is farthest from the fan shaft core CL as viewed from the fan shaft core CL in a plane perpendicular to the fan shaft core CL. Further, the direction 82 is also a direction in which the end portion of the second downstream partitioning portion 543d that is farthest from the fan axis CL in the plane perpendicular to the fan axis CL is viewed from the fan axis CL.

The range of 120 ° is a range from the first downstream partition 543b to the second downstream partition 543d along the rotation direction of the centrifugal fan 552, and is a space through which humidified air is sucked into the centrifugal fan 552. A range of 240 ° from the second downstream partition 543d to the first downstream partition 543b along the rotation direction of the centrifugal fan 552 is a space through which dehumidified air passes and is sucked into the centrifugal fan 552.

Further, the angle formed by the direction 83 from the fan shaft core CL to the first nose portion N1 and the direction 84 from the fan shaft core CL to the second nose portion N2 in a plane perpendicular to the fan shaft core CL is 120 °. is there.

The direction 81 of the first downstream partition 543b is different from the direction of rotation 80 of the centrifugal fan 552 by a first deviation angle θ that is greater than 0 ° and less than 90 ° with respect to the direction 83 of the first nose portion N1. It is shifted to the opposite side. Further, the direction 82 of the second downstream partition portion 543d is shifted to the opposite side to the rotation direction 80 of the centrifugal fan 552 by the substantially same second shift angle θz with respect to the direction 84 of the second nose portion N2. . Here, the absolute value of the difference between the first deviation angle θ and the second deviation angle θz is most preferably 0 °, but if it is 15 ° or less, the effect described later (that is, the separation effect of humidified air and dehumidified air). ) Can be achieved to some extent. The direction 81 and the direction 84 are also shifted from each other, and the direction 82 and the direction 83 are also shifted from each other.

Further, the total contact area Q of the plurality of blades 552b and the height H of each of the plurality of blades 552b are defined as follows. The height H of each blade 552b is the maximum value of the length of the blade 552b in the direction parallel to the fan shaft core CL, as shown in FIG. The maximum value here is the maximum value in one blade. The contact area Q of the plurality of blades 552b is the sum of the contact areas of all the blades 552b connected to the fan boss 552a and the fan boss 552a. In this embodiment, the contact area Q of the plurality of blades 552b in FIG. It is the same as the total cross-sectional area. When defined in this way, H <Q1 ^{/ 2} .

In addition, in FIG. 1, the humidification apparatus 50 in the VI-VI cross section of FIG. 5 is represented.

Subsequently, the control device 100 which is an electric control unit of the vehicle air conditioner will be described with reference to FIG. A control device 100 shown in FIG. 7 includes a microcomputer including a CPU, a storage unit such as a ROM and a RAM, and peripheral circuits thereof. The control device 100 performs various calculations and processes based on the control program stored in the storage unit, and controls the operation of various devices connected to the output side.

The control device 100 of this embodiment is a device in which a control device that controls the operation of various devices of the air conditioning unit 10 and a control device that controls the operation of various devices of the humidifying device 50 are combined into one. In addition, it is good also as a structure which provides separately the control apparatus which controls the action | operation of the various apparatuses of the air conditioning unit 10, and the control apparatus which controls the action | operation of the various apparatuses of the humidification apparatus 50.

The various sensor groups 101 for air conditioning control, the various sensor groups 102 for humidification control, and the operation panel 103 for air conditioning control and humidification control are connected to the input side of the control device 100.

As various sensor groups 101 for air conditioning control, an inside air temperature sensor that detects an inside air temperature, an outside air temperature sensor that detects an outside air temperature, a solar radiation sensor that detects the amount of solar radiation in a vehicle interior, and an evaporator that detects the temperature of the evaporator 13. A temperature sensor etc. are mentioned.

The various sensor groups 102 for humidification control include a first temperature sensor that detects the temperature of air blown from the humidification duct 571, a second temperature sensor that detects the temperature of air blown from the cold air discharge duct, and the like. .

The operation panel 103 is provided with an air conditioning operation switch 103a, a humidification operation switch 103b, a temperature setting switch 103c, and the like. The air conditioning operation switch 103 a is a switch for switching on and off of the air conditioning operation by the air conditioning unit 10. The humidifying operation switch 103b is a switch that switches on / off of the humidifying operation of the humidifying device 50. The temperature setting switch 103c is a switch for setting a target temperature of air blown from the air conditioning unit 10 or the humidifier 50.

Further, on the output side of the control device 100, the actuator of the air mix door 18, the air conditioning motor 193 of the air conditioning blower 19, the actuator of the inside / outside air switching door 123, the motor 551 of the humidifier blower 55, and the electric motor of the driving member 70 are provided. 72, an actuator of the cold air door 522, a compressor (not shown) of the refrigeration cycle, and the like are connected. The control device 100 can control these devices on the output side.

Next, the operation of the air conditioning unit 10 and the humidifier 50 according to this embodiment will be described. First, an outline of the operation of the air conditioning unit 10 will be described. When the air-conditioning operation switch 103a is turned on, the air-conditioning unit 10 targets the blown air that the control device 100 blows into the vehicle interior based on the detection signals of the various air-conditioning control sensor groups 101 and the set temperature of the temperature setting switch 103c. The blowing temperature TAO is calculated. And the control apparatus 100 controls the action | operation of the various apparatuses in the air conditioning unit 10 so that the temperature of the ventilation air which blows off into a vehicle interior approaches the target blowing temperature TAO.

In this way, in the air conditioning unit 10, the control device 100 controls various devices in accordance with the detection signals of the various sensor groups 101 for air conditioning control, thereby realizing appropriate temperature adjustment in the vehicle interior requested by the user. be able to.

Subsequently, the operation of the humidifier 50 will be described using the flowchart shown in FIG. When the air conditioning operation switch 103a is turned on, the control device 100 executes the control process shown in the flowchart shown in FIG.

In the present embodiment, as an example, the evaporator 13 cools the inside air or the outside air, and as a result, the temperature in the passenger compartment is kept at 25 ° C., and the relative humidity in the passenger compartment is kept at 20%. A case where the control device 100 executes the process shown in FIG.

As shown in FIG. 8, the control device 100 first determines whether or not there is a humidification request by detecting on / off of the humidification operation switch 103b in step S10. In this determination process, it is determined that there is no humidification request when the humidification operation switch 103b is off, and it is determined that there is a humidification request when the humidification operation switch 103b is on. If it is determined that there is no humidification request, step S10 is repeated again.

As a result of the determination process in step S10, when it is determined that there is a humidification request, the control device 100 proceeds to step S20 and starts the humidification process in the vehicle interior by the humidification device 50. Specifically, the control device 100 moves the cold air door 522 to the fully open position, operates the motor 551 of the humidifier blower 55 to rotate the centrifugal fan 552, and operates the drive member 70 to operate the adsorber 60. Rotate. Thereby, the humidification driving | operation of the humidification apparatus 50 is implement | achieved.

At this time, when the control device 100 uses the minimum air volume of the air-conditioning blower 19 as the reference air volume, the cooling air introduced through the cold air intake duct 521 has an air volume that is smaller than the reference air volume (for example, 20 m ³ / h, The humidifier blower 55 is controlled so as to be about 20% of the reference air volume. In this case, since the cooling air introduced through the cold air intake duct 521 is sufficiently smaller than the reference air volume, the air conditioning function on the air conditioning unit 10 side is hardly affected. The control device 100 may control the air volume of the air-conditioning blower 19 based on the detection values of the various sensor groups 102 for humidification control.

Further, the control device 100 controls the electric motor 72 of the drive member 70 so that the adsorbent 61 from which moisture has been sufficiently desorbed in the moisture release space 541b moves relative to the moisture absorption space 541a of the adsorber housing 54. To do. For example, when the time required for desorption of moisture from the adsorbent 61 in the moisture release space 541b is set as the reference time, the control device 100 moves the adsorbent 61 to the moisture release space 541b and then passes the reference time. The electric motor 72 is controlled to move to the moisture absorption space 541a. For example, the electric motor 72 is controlled so that the adsorber 60 rotates at a predetermined constant rotation speed of 5 rpm to 10 rpm. Even if the adsorber 60 rotates, the adsorber accommodating portion 54, the first partition member 542, and the second partition member 543 do not rotate.

Here, the operation state of the humidifying device 50 when the control device 100 executes the humidifying process will be described. A part of the low-temperature, high-relative-humidity cooling air (for example, temperature 5 ° C., relative humidity 70%) cooled by the evaporator 13 is sucked by the suction force of the humidifier blower 55 and passes through the cold-air suction duct 521. It is introduced into the suction case 51. The cooling air introduced into the adsorption case 51 adsorbs moisture contained in the cooling air by the adsorbent 61 present in the moisture absorption space 541a of the adsorber 60. As a result, the cooling air becomes dehumidified air.

At this time, since the adsorber 60 rotates in the adsorber accommodation space 541, the adsorbent 61 from which moisture has been sufficiently desorbed in the moisture release space 541b of the adsorber 60 moves to the moisture absorption space 541a. Thereby, moisture contained in the cooling air introduced into the adsorption case 51 is continuously adsorbed by the adsorbent 61 present in the moisture absorption space 541a of the adsorber 60. Subsequently, the dehumidified air that has passed through the moisture absorption space 541 a is sucked by the suction force of the humidifier blower 55 and flows into the fan suction space 555 of the humidifier blower 55 via the air discharge unit 56.

In this case, the air inside the dashboard in the passenger compartment has a temperature of 25 ° C. and a relative humidity of 20%. Part of this air is sucked by the suction force of the humidifier blower 55 and introduced into the suction case 51 from the inside air suction portion 53. The inside air introduced into the adsorption case 51 is humidified by desorption of moisture adsorbed by the adsorbent 61 present in the moisture release space 541b of the adsorber 60, and the temperature is 21 ° C. and the relative humidity is 57%. It becomes humidified air.

At this time, since the adsorber 60 rotates in the adsorber accommodation space 541, the adsorbent 61 that has sufficiently adsorbed moisture in the moisture absorption space 541a in the adsorber 60 moves to the moisture release space 541b. Thereby, the inside air introduced into the adsorption case 51 is continuously humidified by the moisture release of the adsorbent 61 present in the moisture absorption space 541a in the adsorber 60. In this manner, the dehumidification of the cooling air in the moisture absorption space 541a and the humidification of the inside air in the moisture release space 541b are simultaneously and continuously realized. Subsequently, the humidified air that has passed through the moisture release space 541 b is sucked by the suction force of the humidifier blower 55 and flows into the fan suction space 555 of the humidifier blower 55 through the air discharge unit 56.

In addition, since the space from the air discharge part 56 to the vicinity of the fan boss 552a in the fan suction space 555 is partitioned by the first downstream partition part 543b and the second downstream partition part 543d, humidified air and dehumidified air in this space. Are divided almost without mixing.

Therefore, the humidified air and the dehumidified air flowing into the humidifier blower 55 from the air discharge unit 56 are hardly mixed as shown in the humidified air flowing along the solid line arrow and the dehumidified air flowing along the broken line arrow in FIG. It flows toward the fan boss 552a in the fan suction space 555 while being separated.

Then, the humidified air and the dehumidified air are separated from each other while being hardly mixed with each other, as indicated by the solid line arrows and the broken line arrows in FIG. 6, from the fan suction space 555 along the fan boss 552a, It flows into the space surrounded by the top plate 552c. At this time, since the thermal conductivity of the centrifugal fan 552 is high, the humidified air and the dehumidified air exchange heat with each other via the centrifugal fan 552 while being hardly mixed and separated.

More specifically, humidified air having a temperature higher than that of dehumidified air has a temperature of 21 ° C. and a relative humidity of 57%. The air flows into a space surrounded by the fan boss 552a, the blade 552b, and the top plate 552c, and the humidified air mainly hits the fan boss 552a and the blade 552b while circulating in the space. Thus, the heat of the humidified air is transmitted from the humidified air to the fan boss 552a and the blade 552b. As a result, the humidified air is deprived of heat, for example, the temperature is lowered to 18 ° C., and the relative humidity is increased to about 65% accordingly.

The heat transmitted to the blade 552b is transmitted to the fan boss 552a having a higher heat capacity than the blade 552b, and is temporarily stored in the fan boss 552a. The temperature inside the fan boss 552a is kept substantially uniform throughout the fan boss 552a due to its high thermal conductivity.

On the other hand, dehumidified air having a temperature lower than that of the humidified air has a temperature of 5 ° C. and a relative humidity of 30%. While this air flows into the space surrounded by the fan boss 552a, the blade 552b, and the top plate 552c and flows through the space, the dehumidified air mainly hits the fan boss 552a and the blade 552b. Thereby, heat is transmitted from the fan boss 552a and the blade 552b to the dehumidified air. As a result, the dehumidified air receives heat and rises in temperature to 9 ° C., for example, and the relative humidity is lowered to about 28%. Then, heat is transferred from the fan boss 552a having a higher heat capacity than the blade 552b to the blade 552b from which heat has been removed.

Due to such an action, when the dehumidified air (that is, cold air) passes through the centrifugal fan 552, heat is passed from the fan boss 552a and the blade 552b, and the temperature rises and is blown out from the centrifugal fan 552. On the other hand, when the humidified air (that is, warm air) passes through the centrifugal fan 552, heat is taken away from the fan boss 552 a and the blade 552 b and the temperature is lowered and blown out from the centrifugal fan 552. That is, the centrifugal fan 552 sucks humidified air from the adsorption case 51 and blows it out to the humidifying duct 571, and simultaneously sucks dehumidified air from the adsorption case 51 and blows it out to the dehumidified air duct 573, thereby taking air from the humidified air. Pass the deprived heat to dehumidified air.

In this way, the centrifugal fan 552 can suck dehumidified air and humidified air from the fan suction space 555 and blow out, and can mediate heat exchange between the dehumidified air and humidified air. And no need to arrange a humidified air heat exchanger. Further, in the configuration for heat exchange, the number of blowers is only one (that is, only the humidifier blower 55). As a result, the number of parts of the humidifying device 50 can be reduced, and as a result, the humidifying device 50 can be reduced in size.

Moreover, since the inside air is used instead of the air in the air conditioning case 11 as the air for passing the moisture release space 541b, the influence on the air conditioning function on the air conditioning unit 10 side due to the presence of the humidifying device 50 can be reduced. .

Further, as shown in FIG. 9, at a certain point in time, the humid air 91 represented by a substantially oval shape filled with black is discharged from the narrower space partitioned by the first downstream partition 543b and the second downstream partition 543d from the fan boss. It is assumed that the gas flows into a space surrounded by 552a, blade 552b, and top plate 552c. Further, as shown in FIG. 9, at the same time, the dehumidified air 92 represented by a hatched substantially oval shape is separated from the wider space partitioned by the first downstream partition 543b and the second downstream partition 543d from the fan boss 552a, It is assumed that the gas flows into a space surrounded by the blade 552b and the top plate 552c.

In this case, the humidified air 91 and the dehumidified air 92 try to flow out from the outermost end of the space surrounded by the fan boss 552a, the blade 552b, and the top plate 552c as shown in FIG.

However, the centrifugal fan 552 rotates while proceeding from the time point of FIG. 9 to the time point of FIG. In this embodiment, the angle at which the centrifugal fan 552 rotates during the time from the innermost end to the outermost end of the space surrounded by the fan boss 552a, the blade 552b, and the top plate 552c is specified in advance through experiments or the like. Keep it. The rotational speed of the centrifugal fan 552 and the wind speed of the air blown out to the centrifugal fan 552 are in a proportional relationship. Therefore, the above angle hardly depends on the rotational speed of the centrifugal fan 552 and largely depends on the shape of the centrifugal fan 552, but is generally larger than 0 ° and smaller than 90 °.

The first deviation angle θ in which the direction 81 of the first downstream partition portion 543b is shifted to the opposite side of the rotation direction 80 of the centrifugal fan 552 with respect to the direction 83 of the first nose portion N1 is defined as the specified angle. The arrangement and the like of the first nose portion N1 are determined so as to be the same. Further, the second deviation angle θz in which the direction 82 of the second downstream partition portion 543d is shifted to the opposite side to the rotation direction 80 of the centrifugal fan 552 with respect to the direction 84 of the second nose portion N2 is defined as the specified angle. The arrangement or the like of the second nose portion N2 is determined so as to be the same.

In this way, almost all of the humidified air is blown out to the humidifying duct 571, and almost all of the dehumidified air is blown out to the dehumidified air duct 573. Unlike the present embodiment, the direction 81 of the first downstream partition portion 543b coincides with the direction 83 of the first nose portion N1, and the direction 82 of the second downstream partition portion 543d is the direction 84 of the second nose portion N2. , The degree of mixing of the humidified air and the dehumidified air increases compared to the present embodiment. Further, since the deviation angle between the direction 81 and the direction 83 is equal to the deviation angle between the direction 82 and the direction 84, the degree of mixing of the humidified air and the dehumidified air can be further reduced as compared with the case where the deviation angle is not different.

Further, in each of the blades 552b, the relationship between the height H of the blade and the total contact area Q of the plurality of blades 552b is H <Q1 ^{/ 2.} Since heat conduction from the fan boss 552a to the fan boss 552a can be performed more quickly, the efficiency of heat exchange between the humidified air and the dehumidified air can be further improved.

In this way, the humidified air that has flowed into the centrifugal fan 552 is divided almost without being mixed with the dehumidified air, and heat exchange with the dehumidified air lowers the temperature and the relative humidity increases, and flows into the humidifying duct 571. . Further, the humidified air is blown out from the blowing opening 572 at the downstream end of the air flow of the humidifying duct 571 toward the occupant's face through the humidifying duct 571, and is discharged from the outlets 20a, 20b, and 20c. Without being disturbed by the air, the air is blown toward the occupant's face, and the space around the occupant's face is humidified.

Further, the dehumidified air that has flowed into the centrifugal fan 552 is separated almost without being mixed with the humidified air, and heat exchange with the humidified air increases the temperature and the relative humidity increases, and flows into the dehumidified air duct 573. Further, the dehumidified air flows into the passenger compartment, outside the vehicle, or inside the air conditioning case 11 through the humidifying duct 571. When dehumidified air is allowed to flow into the air conditioning case 11, the load of the refrigeration cycle can be reduced because the dehumidified air has a lower temperature than the inside air.

After step S20, it is determined whether there is a humidification stop request in step S30 while continuing the humidification process started in step S20. In the determination process of step S30, it is determined that there is no humidification stop request when each of the operation switches 103a and 103b is on, and it is determined that there is a humidification stop request when one of the operation switches 103a and 103b is off. To do. If it is determined that there is no humidification stop request, the determination in step S30 is repeated while continuing the humidification process.

As a result of the determination process in step S30, when it is determined that there is a humidification stop request, the control device 100 proceeds to step S40 and performs a desorption process for desorbing moisture adsorbed on the adsorbent 61 of the adsorber 60. Execute. Thereby, the desorption operation of the humidifier 50 is realized.

In the desorption process, the control device 100 fully closes the cold air door 522 while the adsorber 60 is rotated by the driving member 70. As a result, the cooling air does not flow from the cold air outlet 112 to the first internal communication port 52b. Therefore, the adsorbent 61 does not adsorb moisture in the hygroscopic space 541a. On the other hand, the inside air is sucked by the suction force of the centrifugal fan 552, introduced into the suction case 51, and moisture is desorbed from the adsorbent 61 in the moisture release space 541b.

Thus, the adsorption of moisture in the adsorbent 61 in the hygroscopic space 541a is stopped, and the desorption of moisture in the adsorbent 61 in the hygroscopic space 541a is continued, so that the moisture adsorbed on the adsorbent 61 is sufficiently desorbed. Can be separated.

The control device 100 continues the desorption process until a preset processing duration elapses. When the processing continuation time has elapsed since the start of the desorption process, the control device 100 stops the operation of the humidifier blower 55 and returns to step S10. In addition, what is necessary is just to set processing continuation time to the time required for the dehumidification apparatus 50 to desorb | suck the whole quantity of the water | moisture content adsorbed by the adsorbent 61 existing in the moisture release space 541b.

According to the humidifying device 50 of the present embodiment described above and the vehicle air conditioner including the humidifying device 50, the vehicle interior can be humidified using the moisture of the cooling air cooled by the air conditioning unit 10. So there is no need to supply water from the outside.

Further, the water contained in the cooling air is adsorbed to the adsorbent 61 using the cooling air in the air conditioning case 11. That is, since moisture is supplied from the cooling air of the evaporator 13, the humidifier 50 can be simply configured without preparing a separate moisture supply source. Moreover, as long as the refrigeration cycle is operating, humidification is possible almost all seasons.

Further, by setting the target to be humidified with moisture desorbed from the adsorbent 61 as the inside air, the humidified air can be blown into the vehicle interior by a method other than humidifying the air in the air conditioning case. Further, by providing a blower that sucks the inside air into the moisture release space 541b and sucks humidified air from the adsorption case 51 and blows it out to the humidifying duct 571, the inside air that is to be humidified can be appropriately guided.

In addition, since the air exiting from the defroster outlet 20c is not humidified, only the air exiting from the humidifying duct 571 is humidified, so that only the passenger is humidified and the window glass is not humidified. Therefore, window fogging can be reduced.

Further, the humidifier 50 moves a part of the adsorbent 61 in the moisture releasing space 541b of the adsorber 60 to the moisture absorbing space 541a and also dehumidifies a part of the adsorbent 61 present in the moisture absorbing space 541a of the adsorber 60. A driving member 70 that moves to the space 541b is provided.

Thus, moisture adsorbed by the adsorbent 61 in the moisture absorbing space 541a is desorbed by the moisture releasing space 541b to humidify the heated air, and at the same time, the moisture absorbing space 541a by the adsorbent 61 from which moisture has been desorbed by the moisture releasing space 541b. It is possible to adsorb the moisture of the cooling air that circulates.

Therefore, according to the humidifier 50 and the vehicle air conditioner of the present embodiment, it is possible to realize continuous humidification in the vehicle interior without water supply.

Further, in the humidifying device 50 of the present embodiment, the humidifying duct 571 constituting the first derivation unit is a separate component from the air conditioning duct 20 whose temperature is adjusted by the air conditioning unit 10. According to this, the air whose temperature has been adjusted by the air conditioning unit 10 and the humidified air humidified by the humidifying device 50 are less likely to be mixed, so that humid air with high humidity can be supplied into the vehicle interior.

Furthermore, in this embodiment, the suction case 51 and the cold air suction duct 521 are separate components from the air conditioning case 11, and the cold air suction duct 521 is detachable from the air conditioning case 11.

According to this, the humidifier 50 can be retrofitted to the air conditioning unit 10. That is, the humidifier 50 can be an option (ie, an add-on part) for the vehicle air conditioner.

In this embodiment, the centrifugal fan 552 mediates heat exchange between the humidified air and the dehumidified air. According to this, the humidified air that has passed through the moisture release space 541b can be cooled with the dehumidified air that has passed through the moisture absorption space 541a, and the relative humidity of the humidified air that is led into the vehicle interior can be increased. As a result, passenger comfort is improved by humidification of the passenger compartment.

Further, in this embodiment, when the humidification in the vehicle interior is stopped, the control device 100 executes a desorption process for desorbing the moisture adsorbed on the adsorbent 61. According to this, when the humidifier 50 is stopped, it is possible to suppress propagation of germs due to moisture remaining in the adsorbent 61, and it is possible to ensure passenger comfort due to humidification in the passenger compartment.

Here, in the adsorbent 61, the moisture adsorption rate per unit mass tends to be slower than the moisture desorption rate per unit mass.

In consideration of this point, in the present embodiment, the accommodation space in the adsorption case 51 is set so that the amount of the adsorbent 61 existing in the moisture absorption space 541a is larger than the amount of the adsorbent 61 existing in the moisture release space 541b. The first partition member 542 and the second partition member 543 are used for partitioning.

According to this, since the amount of moisture adsorbed to the adsorbent 61 in the moisture absorption space 541a can be sufficiently secured, the moisture adsorbed to the adsorbent 61 in the moisture release space 541b can be efficiently desorbed, A sufficient amount of humidification can be secured.

The humidifier blower 55 of the present embodiment realizes sensible heat exchange between the humidified air and the dehumidified air, but does not perform latent heat exchange between the humidified air and the dehumidified air. Therefore, it is possible to adjust the relative humidity of the two fluids having different humidity, that is, humidified air and dehumidified air. Specifically, the relative humidity of the humidified air is further increased by cooling the high-temperature humidified air with the low-temperature dehumidified air, and the relative humidity of the dehumidified air is increased by warming the low-temperature dehumidified air with the high-temperature humidified air. It can be further reduced.

As a result, the lower one of the first fluid and the second fluid passes the heat from the connection member and the blade when passing through the fan, and the temperature rises and is blown out from the fan. . On the other hand, the higher one of the first fluid and the second fluid is deprived of heat from the connecting member and the blade when passing through the fan, and the temperature is lowered and blown out from the centrifugal fan. That is, the fan mediates heat exchange between the first fluid and the second fluid by sucking and blowing out the first fluid and the second fluid. As described above, the fan for blowing and sucking out the two fluids also mediates heat exchange between the two fluids. Therefore, in the configuration for heat exchange, only one blower is required.

(Second Embodiment)
Next, a second embodiment will be described with reference to FIG. The present embodiment is different from the first embodiment in that the humidifying device 50 is applied to the air conditioning unit 10A in which the air conditioner blower 19A is disposed on the upstream side of the air flow of the evaporator 13. In the present embodiment, description of the same or equivalent parts as in the first embodiment will be omitted or simplified.

As shown in FIG. 11, the air conditioning unit 10 </ b> A of the present embodiment has an air conditioning blower 19 </ b> A disposed on the downstream side of the air flow of the inside / outside air switching box 12 and on the upstream side of the air flow of the evaporator 13. In the air conditioner blower 19 </ b> A of the present embodiment, the suction port 191 a opens toward the inside / outside air switching box 12, and the discharge port 191 b opens toward the evaporator 13.

Furthermore, in the air conditioning case 11 of the present embodiment, an opening for blowing the temperature-adjusted air from the air conditioning case 11 to the vehicle interior via the air conditioning duct 20 and the blowout portion on the downstream side of the air flow of the heater core 14. A portion 114 is formed.

Other configurations in the air conditioning unit 10A are the same as those in the first embodiment. The air conditioning unit 10 </ b> A of the present embodiment employs a so-called push-type configuration in which the air conditioning blower 19 </ b> A is disposed on the upstream side of the air flow of the evaporator 13. For this reason, the pressure after the discharge side of the air conditioning fan 19 </ b> A inside the air conditioning case 11 is higher than the pressure outside the air conditioning case 11. Therefore, the power consumed by the humidifier blower 55 for reducing the amount of cooling air having the same air volume as that of the first embodiment from the cold air derivation unit 112 to the adsorber 60 is reduced.

(Other embodiments)
Note that the present disclosure is not limited to the above-described embodiment, and can be modified 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. The present disclosure also allows the following modifications to 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)
Although each said embodiment demonstrated the example which arrange | positions the humidifier 50 in the downward side of the air conditioning unit 10, it is not limited to this. For example, the humidifier 50 may be disposed on the upper side or the side of the air conditioning unit 10.

(Modification 2)
Instead of the humidifier blower 55 of each of the above embodiments, an axial fan that guides the inside air from the dashboard into the inside air suction portion 53 may be provided in the second external introduction port 53a. In this case, the axial fan corresponds to an example of a blower. However, in this case, a separate blower for guiding the cooling right from the cold air suction part 52 to the dehumidified air duct 573 via the moisture absorption space 541a is also required. In this case, a heat exchanger that performs heat exchange between the dehumidified air and the humidified air may be additionally arranged or may not be arranged.

(Modification 3)
In each of the above embodiments, the fan boss 552a and the blade 552b may be made of a resin having a thermal conductivity of less than 10 W / (m · K). In this case, an additional heat exchanger for exchanging heat between the dehumidified air and the humidified air may or may not be arranged.

(Modification 4)
In each of the above-described embodiments, the example in which the cold air intake duct 521 of the humidifying device 50 is connected to the cold air derivation unit 112 that opens to the bottom surface part 11a of the air conditioning case 11 is described, but the present invention is not limited to this. For example, the cold air intake duct 521 may be connected to the cold air derivation unit 112 provided on the upper surface portion 11b and the side surface portion 11c of the air conditioning case 11.

(Modification 5)
In each of the above-described embodiments, the example in which the suction case 51 is connected to the air conditioning case 11 via the cold air suction duct 521 has been described, but the present invention is not limited to this. For example, the cold air suction part 52 of the suction case 51 may be directly connected to the air conditioning case 11. In this case, the cold air suction part 52 corresponds to an example of an introduction part.

(Modification 6)
In each of the above-described embodiments, the amount of the adsorbent 61 existing in the moisture absorption space 541a is less than the amount of the adsorbent 61 present in the moisture release space 541b in consideration of the difference between the adsorption speed and the desorption speed of the adsorbent 61. Although the example which partitions off adsorption machine accommodation space 541 was explained so that it may become, it is not limited to this.

For example, the air volume of the cooling air flowing through the moisture absorption space 541a may be made larger than the air volume of the heating air flowing through the moisture release space 541b. According to this, even if the amount of the adsorbent 61 present in the moisture absorption space 541a is equal to the amount of the adsorbent 61 present in the moisture release space 541b, a sufficient amount of moisture is adsorbed on the adsorbent 61 in the moisture absorption space 541a. It becomes possible to do.

(Modification 7)
In each of the above-described embodiments, the example in which the adsorbent 61 is supported on a plurality of metal plate-like members as the adsorber 60 has been described, but the adsorber 60 is not limited thereto. For example, the adsorber 60 may have a configuration in which the adsorbent 61 is supported inside a structure having a honeycomb structure.

(Modification 8)
In each of the above-described embodiments, an example in which a polymer adsorbent is used as the adsorbent 61 has been described, but the present invention is not limited to this. As the adsorbent 61, for example, an adsorbent such as silica gel or zeolite may be employed.

(Modification 9)
In each of the above-described embodiments, the adsorber 60 is continuously rotated in one direction by the electric motor 72 of the driving member 70 so that the adsorbent 61 of the adsorber 60 is disposed between the moisture absorbing space 541a and the moisture releasing space 541b. However, the present invention is not limited to this.

For example, even when the adsorber 60 is intermittently rotated in one direction by the electric motor 72 of the drive member 70, the adsorbent 61 of the adsorber 60 is moved between the moisture absorbing space 541a and the moisture releasing space 541b. Good.

Further, the rotation direction of the adsorber 60 by the electric motor 72 of the driving member 70 is not limited to one direction, and may be rotated in a direction opposite to the one direction. For example, the adsorbent 60 of the adsorber 60 is moved between the moisture absorbing space 541a and the moisture releasing space 541b by switching the rotation direction of the adsorber 60 between one direction and a direction opposite to the one direction every predetermined time. May be.

Further, when the adsorber housing space 541 is partitioned such that the moisture absorption space 541a and the moisture release space 541b have the same size, all the adsorbents 61 existing in the moisture absorption space 541a and the moisture release space 541b are used. All the adsorbents 61 may be replaced. In this case, the adsorber 60 may be intermittently rotated 180 ° by the driving member 70.

(Modification 10) In each of the above-described embodiments, the driving member 70 that rotates the adsorber 60 is employed as a moving mechanism that moves the adsorbent 61 of the adsorber 60 between the moisture absorption space 541a and the moisture release space 541b. Although an example has been described, the present invention is not limited to this. For example, a configuration in which the adsorber 60 is configured by a plurality of adsorbing units and each adsorbing unit is slid between the moisture absorbing space 541a and the moisture releasing space 541b may be employed as the moving mechanism.

(Modification 11)
As in each of the above-described embodiments, the humidifying duct 571 constituting the outlet portion may be a separate component from the air-conditioning duct 20 that is temperature-adjusted by the air-conditioning unit 10, but is not limited thereto. For example, the humidifying duct 571 may be an integral component of the air conditioning duct 20 on the air conditioning unit 10 side.

(Modification 12)
As in each of the above-described embodiments, the suction case 51 and the cold air suction duct 521 may be configured as separate components from the air conditioning case 11, and the cold air suction duct 521 may be detachable from the air conditioning case 11, but this is not limitative. Not. For example, the suction case 51 and the cold air suction duct 521 may be integrated components with the air conditioning case 11.

(Modification 13)
As in the above-described embodiments, when the humidification in the passenger compartment is stopped, the desorption process for desorbing the moisture adsorbed on the adsorbent 61 may be performed, but the present invention is not limited to this, and the desorption process is performed. May not be executed.

Claims (13)

1. A humidifier applied to an air conditioning unit (10) in which a cooling unit (13) for cooling the blown air is housed in an air conditioning case (11) that constitutes a ventilation path of the blown air into a vehicle interior,
   An adsorber (60) having an adsorbent (61) that adsorbs and desorbs moisture;
   A moisture absorption space (541a) that houses the adsorber and causes the cooling air cooled by the cooling unit to flow and adsorbs moisture contained in the cooling air to the adsorbent, and internal air introduced from the vehicle interior An adsorbing case (54) surrounding the moisture release space (541b) for desorbing the moisture adsorbed on the adsorbent by circulating
   A humidifying duct (571) for introducing humidified air, which is the inside air humidified by moisture desorbed in the moisture release space, into the vehicle interior;
   A dehumidified air duct (573) for guiding dehumidified air that is the cooling air deprived of moisture in the hygroscopic space;
   A humidifier comprising: a blower (55) for flowing the inside air into the moisture release space and flowing the humid air from the moisture release space to the humidification duct.
2. The drive member (70) which moves a part of the adsorbent in the moisture releasing space to the moisture absorbing space and moves a part of the adsorbent in the moisture absorbing space to the moisture releasing space. The humidifying device according to 1.
3. The blower sucks the inside air into the moisture release space, sucks the humidified air from the adsorption case and blows it out to the humidifying duct, and simultaneously sucks the dehumidified air from the adsorption case and blows it out to the dehumidified air duct. The humidifier according to claim 1 or 2, wherein heat is taken from the humidified air and the taken heat is transferred to the dehumidified air.
4. The blower has a centrifugal fan (552) that rotates about a fan axis;
   The centrifugal fan has a rotating fan boss (552a), and a plurality of blades (552b) fixed around the fan boss and arranged around the fan axis,
   The humidifying device according to claim 3, wherein the fan boss and the plurality of blades have a thermal conductivity of 10 W / (m · K) or more.
5. Provided with a partition member (542, 543) provided in the suction case and partitioning the housing space into the moisture absorbing space and the moisture releasing space;
   The blower includes a centrifugal fan (552) that rotates around a fan shaft core, and a fan casing (553) that houses the centrifugal fan,
   The centrifugal fan includes a plurality of blades (552b) arranged circumferentially around a fan suction space (555) including a space in the vicinity of the fan axis, and rotates around the fan axis. Inhaling the humidified air and the dehumidified air from the fan suction space, and blowing out the humidified air and the dehumidified air in a direction away from the fan shaft core,
   The fan casing guides the humidified air blown out by the centrifugal fan to the humidifying duct, guides the dehumidified air blown out by the centrifugal fan to the dehumidified air duct,
   4. The partition member according to claim 1, wherein the partition member is disposed in the downstream side of the suction case and in the fan suction space, and partitions the fan suction space into a space into which the humidified air is sucked and a space into which the dehumidified air is sucked. The humidification apparatus as described in any one.
6. The fan casing is connected to a first inner wall surface (S1) that guides the humidified air blown out by the centrifugal fan to the humidifying duct, and an end of the first inner wall surface that is opposite to the rotation direction. A first nose portion (N1), a second inner wall surface (S2) for guiding the dehumidified air blown out by the centrifugal fan to the dehumidified air duct, and an end portion of the second inner wall surface in a direction opposite to the rotation direction A second nose portion (N2) to be connected,
   The partition member is disposed on the downstream side of the suction case and in the fan suction space, and partitions the fan suction space into a space where the humidified air is sucked and a space where the dehumidified air is sucked ( 543b) and a second downstream partition (543d),
   A range from the first downstream partition to the second downstream partition along the rotational direction of the centrifugal fan is a space into which the humidified air is sucked, and the second downstream along the rotational direction of the centrifugal fan. The range from the partition part to the first downstream partition part is a space into which the dehumidified air is sucked,
   In a plane perpendicular to the fan shaft core, an end portion of the first downstream partition that is farthest from the fan shaft core when viewed from the fan shaft core (81) extends from the fan shaft core. With respect to the direction (83) toward the first nose portion, the first deviation angle (θ) larger than 0 ° and smaller than 90 ° is shifted to the opposite side to the rotational direction (80) of the centrifugal fan. ,
   In a plane perpendicular to the fan shaft core, an end portion of the second downstream partition portion that is farthest from the fan shaft core when viewed from the fan shaft core is a direction (82) from the fan shaft core. The humidifier according to claim 5, wherein the humidifier is deviated from the direction (84) toward the second nose portion by a second deviation angle (θz) on the opposite side to the rotational direction (80) of the centrifugal fan.
7. The humidifier according to claim 6, wherein an absolute value of a difference between the first shift angle and the second shift angle is 15 ° or less.
8. The blower comprises a single centrifugal fan (552) that rotates about the fan axis;
   The centrifugal fan includes a plurality of blades (552b) arranged circumferentially around the fan axis.
   The fan casing includes a first inner wall surface (S1) that guides the humidified air blown by the centrifugal fan to the humidifying duct, and a second inner wall surface that guides the dehumidified air blown by the centrifugal fan to the dehumidified air duct. (S2)
   The plurality of blades rotate around the fan axis so that each of the plurality of blades is between the fan shaft core and the first inner wall surface at one time, and the fan shaft at another time. The humidifier according to any one of claims 1 to 3, wherein the humidifier is located between a core and the second inner wall surface.
9. By rotating around the fan shaft core, the first fluid and the second fluid are sucked from the fan suction space (555) including the fan shaft center, and the sucked first fluid and second fluid are sucked. A fan (552) that blows fluid into different spaces;
   A fan casing (553) for housing the fan;
   A partition part (543b, 543d) for partitioning the space through which the first fluid passes and the space through which the second fluid passes in the fan suction space;
   The first fluid and the second fluid have a temperature difference from each other;
   The fan includes a plurality of blades (552b) arranged in a circumferential direction around the fan shaft core, and connection members (552a, 552c) connected to the plurality of blades,
   The thermal conductivity of the plurality of blades and the thermal conductivity of the connection member are higher than the thermal conductivity of the fan casing,
   The humidifier according to any one of claims 1 to 3, wherein the fan mediates heat exchange between the humidified air and the dehumidified air.
10. An opening / closing mechanism (522) for switching opening and closing of the passage (52) for guiding the cooling air cooled by the cooling unit to the moisture absorption space;
    In the humidification operation, the opening / closing mechanism opens the passage, and the blower and the driving member are operated, so that moisture contained in the cooling air cooled by the cooling unit is adsorbed by the adsorbent in the moisture absorption space. And the moisture is adsorbed on the adsorbent in the moisture release space through the inside air through the moisture release space,
    In the desorption operation performed after the humidification operation, the opening / closing mechanism closes the passage, and the blower and the driving member are operated, so that the inside air circulates in the moisture release space and the moisture release space. The humidifier according to any one of claims 1 to 9, wherein moisture adsorbed on the adsorbent is desorbed.
11. The outlet opening (572) at the downstream end of the air flow of the humidifying duct is connected to the outlet (20a, 20b, 20c) at the downstream end of the air flow of the air outlet duct (20) whose temperature is adjusted by the air conditioning unit. The humidifier according to any one of claims 1 to 10, wherein the humidifier is opened at a position away from the humidifier.
12. An introduction portion (521) connected to the adsorption case and introducing the cooling air into the moisture absorption space of the adsorption case;
    The suction case and the introduction part are separate components from the air conditioning case,
    The humidification device according to any one of claims 1 to 11, wherein the introduction unit is configured to be removable from the air conditioning case.
13. The humidifier according to any one of claims 1 to 12, wherein a destination to which the dehumidified air is guided and blown out by the dehumidified air duct is inside the air conditioning case (11).

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