JP2021169902A - Humidification unit - Google Patents

Abstract

To provide a humidification unit suppressing lowering of a temperature of air blown out to a target space.SOLUTION: A humidification unit includes an adsorption member 41a, a heater 42, a first fan 43, a second fan 44, a casing 47, a control device 46 and a temperature sensor 60. The casing 47 includes: a first air passage P1 in which air taken in from an outdoor side is blown out to a target space S1 via a moisture release region A2 of the adsorption member 41a by using the first fan 43; and a second air passage P2 in which air taken in from the outdoor side is discharged to the outdoor side via a moisture absorption region A1 of the adsorption member 41a by using the second fan 44. The adsorption member 41a is rotated to move the moisture absorption region A1 and the moisture release region A2 on the adsorption member 41a, and the temperature sensor 60 detects a temperature of air blown out to the target space. When a detection result obtained by the temperature sensor 60 is a predetermined threshold value or smaller, the control device 46 executes blowout temperature adjustment control for lowering rotational frequency of the adsorption member 41a compared to predetermined target rotational frequency in a humidifying operation.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a humidifying unit.

Patent Document 1 discloses a humidity control device that humidifies a room. This humidity control device includes a housing containing a heater and a humidity control member. The housing is formed with a first flow path for discharging the air introduced from the outside to the outside and a second flow path for supplying the air introduced from the outside to the room. The air flowing through the first flow path is adsorbed by the humidity control member and discharged to the outside. The air flowing through the second flow path is heated by the heater, then humidified by the humidity control member, and supplied to the room.

Japanese Unexamined Patent Publication No. 2006-170492

In the humidity control device described in Patent Document 1, when the amount of water adsorbed on the humidity control member is large, the amount of air supplied to the room is smaller than that when the amount of water adsorbed on the humidity control member is small. The temperature may drop, causing discomfort to the user in the room.

An object of the present disclosure is to provide a humidifying unit capable of suppressing a decrease in temperature of air supplied to a target space.

(1) The present disclosure is a humidification unit that performs a humidification operation to humidify the target space.
An adsorption member having a moisture absorbing region for adsorbing moisture and a moisture releasing region for releasing moisture,
A heater that heats the moisture-releasing region of the adsorption member, and
The first and second fans that generate airflow,
A housing that houses the suction member, the heater, the first fan, and the second fan.
Control device and
Equipped with a temperature sensor,
The housing has a first air passage in which air taken in from the outside by the first fan is blown out to the target space via a moisture-releasing region of the adsorption member, and the housing is taken in from the outside by the second fan. It has a second air passage through which the air is discharged to the outside via the moisture absorbing region of the adsorption member.
The suction member is rotationally driven to move the moisture absorption region and the moisture discharge region in the adsorption member.
The temperature sensor detects the temperature of the air blown from the first air passage into the target space, and detects the temperature of the air.
When the detection result of the temperature sensor is equal to or less than a predetermined threshold value, the control device executes blowout temperature adjustment control for lowering the rotation speed of the suction member to be lower than the predetermined target rotation speed in the humidification operation.

According to the humidification unit having the above configuration, when the detection result of the temperature sensor is equal to or less than the threshold value, the rotation speed of the suction member is reduced, so that the moisture released from the moisture release region of the suction member to the air flowing through the first air passage. It is possible to reduce the amount of air, and it is possible to suppress a decrease in the temperature of the air blown into the target space. Therefore, it is possible to suppress giving discomfort to the user in the target space.

(2) Preferably, in the blowout temperature adjustment control, the control device further lowers the rotation speed of the suction member as the detection result is lower.
With such a configuration, the lower the temperature of the air blown into the target space, the smaller the amount of water released from the adsorption member into the air, and the decrease in the temperature of the air can be efficiently suppressed.

(3) The present disclosure is a humidification unit that performs a humidification operation to humidify the target space.
An adsorption member having a moisture absorbing region for adsorbing moisture and a moisture releasing region for releasing moisture,
A heater that heats the moisture-releasing region of the adsorption member, and
The first and second fans that generate airflow,
A housing that houses the suction member, the heater, the first fan, and the second fan.
Control device and
Equipped with a temperature sensor,
The housing has a first air passage in which air taken in from the outside by the first fan is blown out to the target space via a moisture-releasing region of the adsorption member, and the housing is taken in from the outside by the second fan. It has a second air passage through which the air is discharged to the outside via the moisture absorbing region of the adsorption member.
The temperature sensor detects the temperature of the air blown from the first air passage into the target space, and detects the temperature of the air.
When the detection result of the temperature sensor is equal to or less than a predetermined threshold value, the control device executes blowout temperature adjustment control for lowering the rotation speed of the second fan to be lower than the predetermined target rotation speed in the humidification operation.

According to the humidification unit having the above configuration, when the detection result of the temperature sensor is equal to or less than the threshold value, the rotation speed of the second fan is lowered, so that the amount of water adsorbed to the moisture absorbing region of the adsorbing member is reduced, thereby adsorbing. It is possible to reduce the amount of moisture released from the moisture-releasing region of the member to the air flowing through the first air passage, and it is possible to suppress a decrease in the temperature of the air blown into the target space. Therefore, it is possible to suppress giving discomfort to the user in the target space.

(4) Preferably, in the blowout temperature adjustment control, the control device lowers the rotation speed of the second fan as the detection result is lower.
With such a configuration, the lower the temperature of the air blown into the target space, the smaller the amount of water adsorbed by the adsorption member, and the lowering of the temperature of the air blown into the target space can be efficiently suppressed. ..

(5) Preferably, the first air passage and the second air passage include a common air passage from the time when the outdoor air is taken in to the time when the suction member is reached.
In the blowout temperature adjustment control, the control device lowers the rotation speed of the first fan below a predetermined target rotation speed in the humidification operation.
According to this configuration, not only the rotation speed of the second fan but also the rotation speed of the first fan is reduced, so that the balance between the air volume of the air flow by the first fan and the air volume of the air flow by the second fan is maintained as a whole. The air volume can be reduced, and the temperature drop of the air blown into the target space can be reliably suppressed.

(6) The present disclosure is a humidification unit that performs a humidification operation to humidify the target space.
An adsorption member having a moisture absorbing region for adsorbing moisture and a moisture releasing region for releasing moisture,
A heater that heats the moisture-releasing region of the adsorption member, and
The first and second fans that generate airflow,
A housing that houses the suction member, the heater, the first fan, and the second fan.
A control device that controls the operation of the heater and
Equipped with a temperature sensor,
The housing has a first air passage in which air taken in from the outside by the first fan is blown out to the target space via a moisture-releasing region of the adsorption member, and the housing is taken in from the outside by the second fan. It has a second air passage through which the air is discharged to the outside via the moisture absorbing region of the adsorption member.
The temperature sensor detects the temperature of the air blown from the first air passage into the target space, and detects the temperature of the air.
When the detection result of the temperature sensor is equal to or less than a predetermined threshold value, the control device executes blowout temperature adjustment control for increasing the output of the heater to a predetermined target output in the humidification operation.

According to the humidifying unit having the above configuration, the output of the heater is increased when the detection result of the temperature sensor is equal to or less than the threshold value, so that the temperature of the air blown into the target space can be directly increased. Therefore, it is possible to suppress giving discomfort to the user in the target space.

(7) Preferably, in the blowout temperature adjustment control, the control device increases the output of the heater as the detection result is lower.
With such a configuration, the lower the temperature of the air blown into the target space, the higher the output of the heater, and the temperature of the air blown into the target space can be efficiently raised.

(8) Preferably, the humidification unit further includes a person detection sensor that detects a person in the target space.
The control device executes the blowout temperature adjustment control when the person detection sensor detects a person.
With such a configuration, the control device can execute the blowout temperature adjustment control only when the human detection sensor detects a person. Therefore, when there is no person in the target space, the control device controls for normal humidification operation to reduce the humidification performance or increase the power consumption in order to suppress the decrease in the blowing temperature. Can be suppressed.

(9) Preferably, the adsorption member has a property of adsorbing more water as the temperature is lower.

(10) Preferably, in the air flow direction of the first air passage, a moisture-releasing region of the suction member is arranged on the downstream side of the heater.

It is a schematic diagram of the humidification unit which concerns on one Embodiment of this disclosure. It is an external perspective view of the housing of a humidification unit. It is a schematic plan view which removed the top plate of a housing. It is the schematic bottom view which removed the panel of a housing. It is a schematic front view which removed the front plate of a housing. FIG. 3 is a schematic cross-sectional view taken along the line CC of FIG. It is a perspective view of a temperature / humidity sensor. It is a schematic cross-sectional view in the EE arrow view of FIG. It is a top view of the moisture absorption rotor. It is an exploded perspective view which shows the moisture absorption rotor. It is a perspective view of a heater. It is a flowchart which shows the processing procedure of the 1st aspect of the blow-out temperature adjustment control. It is a flowchart which shows the processing procedure of the 2nd aspect of the blow-out temperature adjustment control. It is a flowchart which shows the processing procedure of the 3rd aspect of a blowout temperature adjustment control.

Hereinafter, embodiments will be described with reference to the accompanying drawings.
<Overall configuration of humidification unit>
FIG. 1 is a schematic view of a humidifying unit 3 according to an embodiment of the present disclosure.
The humidification unit 3 humidifies and ventilates the target space S1. The target space S1 is, for example, a space in a room partitioned by a ceiling wall 4, a side wall 5, and a floor (not shown).

The humidifying unit 3 introduces outdoor air to humidify it, and blows out the humidified air to the target space S1. The humidification unit 3 includes a moisture absorption rotor 41, a heater 42, a first fan 43, a second fan 44, a temperature / humidity sensor 45, a control device 46, a housing 47, an introduction duct 48, an exhaust duct 49, and the like.

The housing 47 accommodates the above devices 41 to 46. The housing 47 includes a housing body 50, a panel 51, an introduction connection pipe 52, and a discharge connection pipe 53. Most of the housing body 50 is arranged in the attic space S2. The lower end of the housing body 50 is arranged so as to penetrate the ceiling wall 4. The attic space S2 is a space formed above the ceiling wall 4. The lower end of the housing body 50 is open and closed by the panel 51.

The panel 51 is detachably attached to the lower end of the housing body 50. The entire lower surface of the panel 51 is exposed to the target space S1. The panel 51 is formed with a plurality of openings 54, 72 that communicate the inside of the housing body 50 with the target space S1. The opening includes an outlet 54 for blowing air from the housing body 50 into the target space S1. A temperature sensor 60 for detecting the temperature of the air blown out from the air outlet 54 is provided in the vicinity of the air outlet 54. The opening includes an inflow port 72 that allows air in the target space S1 to flow into the housing body 50. A temperature / humidity sensor 45 for detecting the temperature and humidity of the air in the target space S1 flowing in from the inflow port 72 is provided in the vicinity of the inflow port 72.

One end of the introduction connection pipe 52 and one end of the discharge connection pipe 53 are connected to the housing body 50. The opening on the other end side of the introduction connection pipe 52 is an intake 55 for taking in outdoor air. The opening on the other end side of the discharge connection pipe 53 is a discharge port 56 for discharging air to the outside. The intake port 55 and the discharge port 56 may be configured by openings formed in the wall surface of the housing body 50 without using the introduction connection pipe 52 and the discharge connection pipe 53.

The housing 47 has a first air passage P1 and a second air passage P2. The first air passage P1 and the second air passage P2 are "humidifying air passages" used for humidifying the target space S1. The outdoor air introduced into the housing 47 from the intake port 55 flows through the first air passage P1 to the air outlet 54. The outdoor air introduced into the housing 47 from the intake port 55 flows through the second air passage P2 to the discharge port 56.

The housing 47 further has a third air passage P3 and a fourth air passage P4.
The third air passage P3 is a “state detection air passage” used for detecting the temperature and humidity of the air in the target space S1 by the temperature / humidity sensor 45. The air in the target space S1 that has flowed into the housing 47 from the inflow port 72 flows through the third air passage P3. The third air passage P3 merges with the second air passage P2 and the fourth air passage P4 described later. The air flowing through the third air passage P3 is discharged from the discharge port 56 together with the air flowing through the second air passage P2 and the air flowing through the fourth air passage P4.

The fourth air passage P4 is a "cooling air passage" used for cooling the heat generating parts included in the control device 46. The outdoor air introduced into the housing 47 from the intake port 55 flows through the fourth air passage P4. The fourth air passage P4 joins the second air passage P2 after cooling the heat generating component. The air flowing through the fourth air passage P4 is discharged from the discharge port 56 together with the air flowing through the second air passage P2.

One end of the introduction duct 48 is connected to the introduction connection pipe 52 of the housing 47. The other end of the introduction duct 48 penetrates the side wall 5 and communicates with the outside.
One end of the discharge duct 49 is connected to the discharge connection pipe 53 of the housing 47. The other end of the discharge duct 49 penetrates the side wall 5 and communicates with the outside. The air flowing through the second air passage P2 is discharged to the outside from the discharge port 56 through the discharge duct 49.

The moisture absorption rotor (adsorption device) 41 is arranged in the middle of the first air passage P1 and the second air passage P2. The moisture absorption rotor 41 is configured to take moisture from the air flowing through the second air passage P2 and release the moisture to the air flowing through the first air passage P1 to humidify the air. The heater 42 is provided in the middle of the first air passage P1 and warms the air flowing through the first air passage P1 before humidification.

The first fan 43 is arranged in the vicinity of the air outlet 54 in the first air passage P1. The first fan 43 generates an air flow in the first air passage P1. Specifically, the first fan 43 is a position where outdoor air can be introduced into the first air passage P1 via the introduction duct 48 and blown out from the outlet 54 to the target space S1 via the moisture absorption rotor 41. Is located in.

The second fan 44 is arranged in the vicinity of the discharge port 56 in the second air passage P2. The second fan 44 generates an air flow in the second air passage P2. Specifically, the second fan 44 is positioned so that outdoor air can be introduced into the second air passage P2 via the introduction duct 48 and discharged to the outside from the discharge port 56 via the moisture absorption rotor 41. Have been placed. The second fan 44 also generates an air flow in the third air passage P3 and the fourth air passage P4.

The temperature / humidity sensor 45 is provided in the housing body 50 and detects the temperature and humidity of the air in the target space S1. The temperature sensor 60 is provided in the housing body 50 and detects the temperature of the air blown out into the target space S1. The detected values of the temperature / humidity sensor 45 and the temperature sensor 60 are input to the control device 46. The control device 46 controls the operations of the moisture absorbing rotor 41, the heater 42, the first fan 43, and the second fan 44 based on the detected values of the various sensors 45 and 60.

The humidification unit 3 performs "humidification operation" and "ventilation operation". In the humidification operation, the control device 46 operates the moisture absorption rotor 41, the heater 42, the first fan 43, and the second fan 44. As a result, the outdoor air passes through the introduction duct 48 and is introduced into the first air passage P1 and the second air passage P2 of the housing body 50. Moisture in the air introduced into the second air passage P2 is taken away by the moisture absorbing rotor 41. The deprived air passes through the discharge duct 49 and is discharged to the outside. The air introduced into the first air passage P1 is humidified by the moisture absorbing rotor 41. The humidified air is blown out from the outlet 54 into the target space S1. The control device 46 performs a humidification operation so that the humidity of the target space S1 detected by the temperature / humidity sensor 45 becomes the target humidity (set humidity).

In the ventilation operation, the control device 46 operates the first fan 43 and the second fan 44, and does not operate the moisture absorbing rotor 41 and the heater 42. As a result, the outdoor air passes through the introduction duct 48 and is introduced into the first air passage P1 and the second air passage P2 of the housing body 50. The air introduced into the first air passage P1 is blown out from the air outlet 54 into the target space S1 without being humidified by the moisture absorbing rotor 41.

In the humidification operation and the ventilation operation, the air volume of the air blown from the outlet 54 to the target space S1 is the air discharged from the target space S1 to the outside through the inflow port 72 and the third and second air passages P3 and P2. It is set to be larger than the air volume of. Therefore, the inside of the target space S1 becomes a positive pressure due to the air discharged from the air outlet 54. As a result, the air in the target space S1 leaks out of the target space S1 from a place other than the humidifying unit 3, and the target space S1 can be ventilated.

<Specific configuration of the housing 47>
FIG. 2 is an external perspective view of the housing 47 of the humidifying unit 3. In the following description, expressions such as "top", "bottom", "left", "right", "front", and "rear" may be used to explain the orientation and position. Unless otherwise noted, these representations follow the directions of the arrows X, Y, Z orthogonal to each other shown in FIG. Specifically, in the following description, the direction of arrow X (first direction) in FIG. 2 is the left-right direction, the direction of arrow Y (second direction) is the front-back method, and the direction of arrow Z (third direction) is up and down. It's called direction. However, the expressions representing these directions and positions are used for convenience of explanation and do not limit the present disclosure.

The housing body 50 of the housing 47 is formed in a rectangular parallelepiped box shape. The housing body 50 has a front plate 50a, a rear plate 50b, a left side plate 50c, a right side plate 50d, and a top plate 50e. The lower end of the housing body 50 is open and closed by the panel 51.

The rear plate 50b of the housing body 50 is provided with an introduction connection pipe 52 and a discharge connection pipe 53. The housing body 50 is formed to have a longer length in a direction (horizontal direction X) horizontally orthogonal to the length in the direction in which air enters and exits (front-back direction Y) by the introduction connection pipe 52 and the discharge connection pipe 53. ing. An air outlet 54 and an inflow port 72 are formed on the panel 51. In the left-right direction X, the air outlet 54 is arranged on one side of the panel 51, and the inflow port 72 is arranged on the other side of the panel 51. Therefore, the outlet 54 and the inlet 72 are arranged at intervals in the left-right direction X.

FIG. 3 is a schematic plan view of the housing 47 with the top plate 50e removed. FIG. 4 is a schematic bottom view of the housing 47 with the panel 51 removed. FIG. 5 is a schematic front view of the housing 47 with the front plate 50a removed. As shown in FIGS. 3 to 5, devices such as a moisture absorbing rotor 41, a first fan 43, and a second fan 44 are arranged in the housing 47 so as to be distributed in the left-right direction X.

The housing body 50 is provided with a first partition plate 61 that divides the internal space into upper and lower parts. As shown in FIGS. 3 and 5, a second partition plate 62, a third partition plate 63, and a fourth partition plate 64 are provided on the first partition plate 61. As shown in FIGS. 4 and 5, a fifth partition plate 65, a sixth partition plate 66, and a seventh partition plate 67 are provided below the first partition plate 61.

As shown in FIG. 3, the first partition plate 61 has a region surrounded by the second and third partition plates 62 and 63 and a region surrounded by the third and fourth partition plates 63 and 64 in a plan view (third region). It is provided in an area excluding the area where the two fans 44 are arranged and the area where a part of the control device 46 is arranged).

As shown in FIG. 3, the second partition plate 62 includes two vertical plate portions 62a and 62c extending in the front-rear direction Y and an inclined plate portion 62b connecting these vertical plate portions 62a and 62c in a plan view. ,have. The vertical plate portion 62a extends rearward from the front plate 50a of the housing body 50. The vertical plate portion 62c extends forward from the rear plate 50b of the housing body 50. The positions of the vertical plate portion 62a and the vertical plate portion 62c are shifted in the left-right direction X. The inclined plate portion 62b connects the rear end of the vertical plate portion 62a and the front end of the vertical plate portion 62c.

The third partition plate 63 is arranged at intervals in the left-right direction X with respect to the second partition plate 62. The third partition plate 63 has two vertical plate portions 63a and 63c extending in the front-rear direction Y and an inclined plate portion 63b connecting the vertical plate portions 63a and 63c in a plan view. The vertical plate portion 63a extends rearward from the front plate 50a of the housing body 50. The vertical plate portion 63c extends forward from the rear plate 50b of the housing body 50. The positions of the vertical plate portion 63a and the vertical plate portion 63c are shifted in the left-right direction X. The inclined plate portion 63b connects the rear end of the vertical plate portion 63a and the front end of the vertical plate portion 63c.

The fourth partition plate 64 extends in the left-right direction X over the middle portion of the vertical plate portion 63c of the third partition plate 63 in the front-rear direction Y and the right side plate 50d of the housing body 50.

With the above configuration, the first space R1 extending in the front-rear direction Y of the housing body 50 by the second partition plate 62 and the third partition plate 63 on the upper side of the housing body 50 and substantially in the center of the left-right direction X. Is formed. A second space R2 is formed by the third partition plate 63 and the fourth partition plate 64 on the right front side on the upper side of the housing body 50. A third space R3 is formed by the vertical plate portion 63c and the fourth partition plate 64 of the third partition plate 63 on the right rear side of the upper side of the housing body 50.

As shown in FIG. 4, the fifth partition plate 65 arranged below the first partition plate 61 extends forward from the rear plate 50b of the housing body 50. The fifth partition plate 65 is arranged below the vertical plate portion 62c (see FIG. 3) of the second partition plate 62. The sixth partition plate 66 extends in the left-right direction X over the front end of the fifth partition plate 65 and the right side plate 50d of the housing body 50. The seventh partition plate 67 extends in the front-rear direction Y over the middle portion of the sixth partition plate 66 in the left-right direction X and the front plate 50a of the housing body 50.

With the above configuration, the fourth space R4 is formed by the fifth partition plate 65 and the sixth partition plate 66 on the right rear side on the lower side of the housing body 50. A fifth space R5 is formed by a sixth partition plate 66 and a seventh partition plate 67 on the right front side on the lower side of the housing body 50.

The first partition plate 61 does not exist between the third space R3 shown in FIG. 3 and the fourth space R4 shown in FIG. Therefore, the third space R3 and the fourth space R4 communicate with each other vertically. Electrical components including the control device 46 are arranged in the third space R3 and the fourth space R4. A first fan 43 is arranged in the fifth space R5.

In the housing body 50, the area on the left side of the second partition plate 62 as shown in FIG. 3 and the area on the left side of the fifth partition plate 65 and the seventh partition plate 67 as shown in FIG. It forms a continuously connected sixth space R6. A second fan 44 is arranged in the sixth space R6. The sixth space R6 forms a part of the second air passage P2 (see FIG. 1) through which air flows by the second fan 44.

The configuration for dividing the internal space of the housing body 50 is not limited to this embodiment, and can be changed as appropriate.

As shown in FIGS. 3 and 4, the introduction connecting pipe 52 is provided at a position corresponding to the first space R1 and the fourth space R4 on the rear plate 50b of the housing body 50. The intake 55 of the introduction connection pipe 52 communicates with the first space R1 and the fourth space R4. The first space R1 forms a part of the first air passage P1 (see FIG. 1) and the second air passage P2 through which the air taken in from the intake 55 flows. The fourth space R4 forms a fourth air passage P4 (see FIG. 1) through which air taken in from the intake 55 flows. The second space R2 communicates with the first space R1 via the heater case 41f of the moisture absorbing rotor 41 described later, and forms the first air passage P1 together with the first space R1.

An air filter 73 that removes dust and the like from the air taken into the housing body 50 from the intake 55 is provided on the inner surface of the rear plate 50b of the housing body 50. The air filter 73 is attached to a mounting frame 74 provided on the rear plate 50b.

The discharge connection pipe 53 is provided at a position corresponding to the sixth space R6 on the rear plate 50b of the housing body 50. The discharge port 56 of the discharge connection pipe 53 communicates with the sixth space R6. The sixth space R6 communicates with the first space R1 via the suction member 41a of the moisture absorbing rotor 41 described later, and forms the second air passage P2 together with the first space R1.

As shown in FIGS. 4 and 5, the air outlet 54 formed in the panel 51 is formed at a position corresponding to the fifth space R5. As shown in FIGS. 3 and 4, the inflow port 72 formed in the panel 51 is formed at a position corresponding to the sixth space R6. A temperature / humidity sensor 45 and heat insulating materials 87 and 88 are provided in the sixth space R6. The heat insulating materials 87 and 88 form a third air passage P3 (see FIG. 1).

FIG. 6 is a schematic cross-sectional view taken along the line CC of FIG. FIG. 7 is a perspective view of the temperature / humidity sensor.
The temperature / humidity sensor 45 of the present embodiment is attached to the front plate 50a of the housing 47 via the attachment member 86. The mounting member 86 is a plate material bent in an L shape, and has a first plate portion 86a arranged along the vertical direction Z and a second plate portion 86b arranged along the horizontal direction. The first plate portion 86a of the mounting member 86 is fixed to the front plate 50a, and the temperature / humidity sensor 45 is attached to the lower surface of the second plate portion 86b. The temperature / humidity sensors 45 are arranged at intervals above the panel 51 of the housing 47.

An inflow port 72 is formed on the panel 51 below the temperature / humidity sensor 45. The inflow port 72 is formed in such a size that all or a part thereof overlaps the temperature / humidity sensor 45 when the panel 51 is viewed from below in the vertical direction. The temperature / humidity sensor 45 detects the temperature and humidity of the air in the target space S1 that has flowed in from the inflow port 72.

The heat insulating materials 87 and 88 provided around the temperature / humidity sensor 45 are provided on the first heat insulating material 87 provided on the lower surface of the second plate portion 86b of the mounting member 86 and on the upper surface of the second plate portion 86b. Includes a second heat insulating material 88.

The first heat insulating material 87 is formed in a substantially rectangular parallelepiped shape. The lower surface of the first heat insulating material 87 is in contact with the upper surface of the panel 51 of the housing 47. Specifically, the first heat insulating material 87 is pressed against the upper surface of the panel 51 by the mounting member 86, and is compressed from above and below by the second plate portion 86b and the panel 51 of the mounting member 86. The first heat insulating material 87 is formed with a housing recess 87a for accommodating the temperature / humidity sensor 45. The accommodating recess 87a is open at the lower end and the rear end. The open portion 87c at the lower end of the accommodating recess 87a communicates with the inflow port 72.

The second heat insulating material 88 is formed in a plate shape. The second heat insulating material 88 sandwiches the second plate portion 86b of the mounting member 86 between the second heat insulating material 88 and the first heat insulating material 87. A notch 88a communicating with the accommodating recess 87a of the first heat insulating material 87 is formed at the trailing edge of the second heat insulating material 88.

In the present embodiment, the air in the target space S1 that has flowed in from the inflow port 72 flows through the accommodating recess 87a of the first heat insulating material 87, and joins the second air passage P2 from the open portion 87b at the rear end. The accommodating recess 87a constitutes the third air passage P3.

In this embodiment, the heat insulating materials 87 and 88 form the third air passage P3. Therefore, the heat insulating materials 87 and 88 suppress that the air in the target space S1 flowing in from the inflow port 72 is cooled by the cold air in the sixth space R6. As a result, the temperature and humidity sensor 45 can accurately detect the temperature and humidity of the air in the target space S1. Further, the heat insulating materials 87 and 88 suppress the air in the target space S1 from being cooled by the air in the sixth space R6 and condensing on the temperature / humidity sensor 45.

<Configuration of control device 46>
As shown in FIGS. 3 and 4, the control device 46 is arranged in the third space R3 and the fourth space R4. The control device 46 includes a control board 81. The control device 46 controls the operations of the first fan 43, the second fan 44, the moisture absorbing rotor 41, and the heater 42. A microcomputer having a CPU, a memory, and the like, and an inverter (power supply circuit) having a rectifier circuit, an inverter circuit, and the like are mounted on the control board 81.

A heat generating component such as a switching element included in the inverter is mounted on the control board 81. As shown in FIG. 4, a heat sink (cooler) 84 for cooling the heat generating component is attached to the control board 81. The heat sink 84 is made of a block made of an aluminum alloy or the like, and a large number of fins are formed on the surface thereof. The heat sink 84 is located near the front side of the introduction connection pipe 52. In the fourth space R4 where the control device 46 is arranged, a partition wall 85 for partitioning a region (cooling space) R4a in which the heat sink 84 is arranged and the other regions is arranged along the front-rear direction Y. The cooling space R4a forms a fourth air passage P4 (see FIG. 1).

FIG. 8 is a schematic cross-sectional view taken along the line EE of FIG.
As shown in FIGS. 4 and 8, the mounting frame 74 to which the air filter 73 is mounted has a shielding plate 74a that shields the flow of air below the first partition plate 61. The shielding plate 74a is formed with an inflow port 74b that allows air taken in from the intake port 55 to flow into the cooling space R4a.

An opening 66a is formed in the sixth partition plate 66. The opening 66a communicates the cooling space R4a with the sixth space R6. Since the sixth space R6 forms the second air passage P2, the opening 66a constitutes a merging port for merging the fourth air passage P4 with the second air passage P2. Therefore, the air taken in from the intake port 55 flows through the cooling space R4a from the inflow port 74b, and is discharged from the opening 66a to the sixth space R6. Air flowing through the cooling space R4a is supplied to the heat sink 84 arranged in the cooling space R4a, and the heat generating component mounted on the second control board 82 is cooled.

<Structure of 1st fan 43>
As shown in FIG. 5, in the fifth space R5, the first fan 43 is provided below the first partition plate 61. The first fan 43 includes a fan main body 43a having a plurality of blades, a fan case 43b for accommodating the fan main body 43a, and a fan motor 43c for rotating the fan main body 43a. The first fan 43 of the present embodiment is a centrifugal fan, for example, a turbo fan.

The first partition plate 61 is formed with a suction port 61a for sucking air into the fan case 43b by rotating the fan body 43a. At the lower end of the fan case 43b, a discharge port 43d for discharging air to the outside of the fan case 43b by rotation of the fan body 43a is formed. The discharge port 43d is connected to the air outlet 54 of the panel 51 and communicates with the air outlet 54. The first fan 43 creates an air flow in the first air passage P1.

As shown in FIG. 4, the fan case 43b of the first fan 43 is provided with a temperature sensor 60 and a temperature fuse (temperature detector) 76. The temperature sensor 60 detects the temperature of the air blown out from the discharge port 43d and the air outlet 54. In the present embodiment, the temperature sensor 60 measures the temperature of the air immediately before passing through the outlet 54, but may measure the temperature of the air at the moment of passing through the outlet 54 or immediately after passing through the outlet 54. .. The thermal fuse 76 has an electric wire that breaks when the ambient air temperature exceeds a predetermined temperature, and is incorporated in a circuit that transmits a signal to the control device 46. The detected value of the temperature sensor 60 and the disconnection state of the temperature fuse 76 are input to the control device 46.

<Structure of 2nd fan 44>
As shown in FIGS. 3 to 5, a second fan 44 is provided in the sixth space R6. The second fan 44 has a fan main body 44a having a plurality of blades, a fan case 44b for accommodating the fan main body 44a, and a fan motor 44c for rotating the fan main body 44a. A suction port 44d for sucking air into the fan case 44b by rotation of the fan body 44a is formed on the lower surface of the fan case 44b. At the rear end of the fan case 44b, a discharge port 44e for discharging air to the outside of the fan case 44b by rotation of the fan body 44a is formed. The discharge port 44e is connected to the discharge connection pipe 53. The second fan 44 creates an air flow in the second air passage P2. The second fan 44 of the present embodiment is a centrifugal fan, for example, a sirocco fan. The second fan 44 produces an air flow with a larger air volume than the first fan 43. Further, the air volume of the first fan 43 and the air volume of the second fan 44 during the humidification operation are set to a predetermined ratio.

<Structure of Moisture Absorption Rotor 41>
As shown in FIGS. 3 to 5, the moisture absorbing rotor (moisture absorbing device) 41 is provided on the first partition plate 61. As shown in FIG. 3, the moisture absorbing rotor 41 is arranged below the inclined plate portion 63b and the vertical plate portion 63a of the third partition plate 63 in a plan view. The moisture absorbing rotor 41 is arranged so as to straddle the first space R1 and the second space R2. As shown in FIG. 4, the moisture absorbing rotor 41 is arranged in the sixth space R6 in the bottom view.

FIG. 9 is a plan view of the moisture absorbing rotor 41. FIG. 10 is an exploded perspective view of the moisture absorbing rotor 41. The moisture absorbing rotor 41 includes a suction member 41a, a ring gear 41b, a pinion gear 41c, a support frame 41d, and a heater case 41f. Note that FIG. 10 shows a state in which the suction member 41a and the ring gear 41b are separated upward from the support frame 41d.

The suction member 41a is a desiccant material formed in an annular shape. The adsorption member 41a adsorbs moisture from the air passing through itself when its temperature is low. When the temperature of the adsorption member 41a is high, the adsorption member 41a releases the moisture adsorbed by itself into the air passing through the adsorption member 41a to humidify the air. The adsorption member 41a has a property of adsorbing more water as the temperature is lower.

The ring gear 41b is an external gear. The ring gear 41b is attached to the outer periphery of the suction member 41a. The suction member 41a and the ring gear 41b are integrated. The suction member 41a and the ring gear 41b are arranged on the support frame 41d. The suction member 41a and the ring gear 41b are rotatably supported by the support frame 41d at the center O of the suction member 41a.

The support frame 41d is integrally formed with the first partition plate 61 of the housing body 50, or is fixed to the first partition plate 61. The support frame 41d is formed with substantially fan-shaped through holes 41d1 and 41d2. The through hole 41d1 is formed at a position corresponding to the first region A1 (see FIG. 3) described later. The through holes 41d2 are formed at positions corresponding to the second and third regions A2 and A3, which will be described later. Through holes may be formed at three locations corresponding to each of the first region A1 to the third region A3.

The pinion gear 41c is rotatably supported with respect to the support frame 41d on the outer peripheral side of the ring gear 41b. The pinion gear 41c meshes with the ring gear 41b. The pinion gear 41c is rotated by a motor (not shown). When the pinion gear 41c rotates, the suction member 41a rotates around the center O together with the ring gear 41b. In the present embodiment, the suction member 41a rotates in one side in the circumferential direction (the direction indicated by the white arrow B in FIG. 3).

As shown in FIGS. 4, 5, and 10, a heater case 41f is provided on the support frame 41d of the moisture absorbing rotor 41. The heater case 41f is formed in a substantially arc shape in a plan view, and is arranged at a position corresponding to the through hole 41d2 of the support frame 41d. The heater case 41f is formed in a box shape with an open upper end. As shown in FIG. 5, the heater case 41f is arranged below the suction member 41a in the sixth space R6. The heater case 41f is arranged in a range (an angle range of 240 °) of the second region A2 and the third region A3, which will be described later, in the plan view of FIG. The heater case 41f functions as a passage member that forms a passage for air passing through the suction member 41a. The heater case 41f forms a part of the first air passage P1 between the first space R1 and the second space R2.

The heater 42 is housed in the heater case 41f. As shown in FIG. 3, the heater 42 is located below the inclined plate portion 63b. The heater 42 is arranged at a position corresponding to the second region A2 and the third region A3. As shown in FIG. 11, inside the heater case 41f, the upstream side in the air flow direction in the first air passage P1 from the heater 42 constitutes the heater front space 41f1. The heater front space 41f1 is arranged in the third region A3 (see FIGS. 3 and 4). Air before being heated by the heater 42 is introduced into the heater front space 41f1.

Inside the heater case 41f, a space 41f2 after the heater is formed on the downstream side in the air flow direction in the first air passage P1 from the heater 42. The post-heater space 41f2 is arranged in the second region A2 (see FIGS. 3 and 4). Air after being heated by the heater 42 is introduced into the space 41f2 after the heater.

FIG. 11 is a perspective view of the heater 42. The heater 42 has a rectangular cross section formed of, for example, metal. The heater 42 has a grid-like frame 42a in order to increase the contact area with the air passing through the heater 42. One open end of the heater 42 is an air inlet 42b and the other open end of the heater 42 is an air outlet 42c.

The heater 42 is arranged so that the inlet 42b faces the space 41f1 in front of the heater and the outlet 42c faces the space 41f2 after the heater. The air in the heater front space 41f1 is introduced into the heated heater 42 from the inlet 42b, and when it passes through the inside of the heater 42, it comes into contact with the frame body 42a or the like to be warmed. The warmed air moves from the outlet 42c of the heater 42 to the post-heater space 41f2 and warms the suction member 41a located above the post-heater space 41f2 (see FIG. 3). Therefore, the heater 42 indirectly warms the suction member 41a.

The heater 42 may directly heat the adsorption member 41a instead of heating the air. In that case, for example, the heater 42 may be arranged above the suction member 41a, and the suction member 41a may be heated by the radiant heat of the heater 42.

As shown in FIG. 3, the adsorption member 41a has a first region (moisture absorbing region) A1, a second region (moisture releasing region) A2, and a third region A3 in a plan view. The first region A1, the second region A2, and the third region A3 are set around the center O of the suction member 41a in an angle range of 120 °, respectively. The first region A1 is adjacent to the second region A2 and the third region A3. The second region A2 is adjacent to the first region A1 and the third region A3. The third region A3 is adjacent to the first region A1 and the second region A2.

The first region A1 to the third region A3 are regions fixed at a fixed position. Therefore, when the suction member 41a rotates in the direction of the arrow B, the first region A1 to the third region A3 move relatively on the suction member 41a.

The first region A1 is set in an angle range of 120 ° from the vertical plate portion 63a of the third partition plate 63 in the direction opposite to the arrow B. As a result, the first region A1 is interposed between the first space R1 and the sixth space R6.

When outdoor cold air is introduced into the first space R1 from the intake 55, a part of the air passes through the first region A1 of the adsorption member 41a and flows to the sixth space R6. The first region A1 of the suction member 41a is cooled by air to lower the temperature. Therefore, the first region A1 of the adsorption member 41a adsorbs the moisture in the air passing through the adsorption member 41a. When the suction member 41a rotates after the first region A1 of the suction member 41a has adsorbed the moisture in the air, the portion that was the first region A1 becomes the second region A2.

The second region A2 is formed in an angle range of 120 ° from the vertical plate portion 63a of the third partition plate 63 to the inclined plate portion 63b in the direction of arrow B. The second region A2 is interposed between the second space R2 and the post-heater space 41f2 of the heater case 41f. The air warmed by the heater 42 in the heater case 41f moves from the post-heater space 41f2 to the second space R2 through the second region A2 of the suction member 41a. At that time, since the second region A2 of the adsorption member 41a is heated by the air and the temperature rises, moisture is released to the air passing through the second region A2 to humidify the air.

The third region A3 is formed in an angle range of 120 ° in the direction of arrow B from the inclined plate portion 63b of the third partition plate 63. The third region A3 is interposed between the first space R1 and the heater front space 41f1 of the heater case 41f. When outdoor cold air is introduced into the first space R1 from the intake 55, a part of the air passes through the third region A3 of the adsorption member 41a and moves to the heater front space 41f1. At that time, the third region A3 of the adsorption member 41a is preliminarily cooled by cold air. The cold air is preliminarily warmed by the third region A3 of the adsorption member 41a. The suction member 41a does not necessarily have to have the third region A3.

As described above, the moisture absorbing rotor 41 rotates the single suction member 41a to adsorb the moisture in the air flowing through the first air passage P1 in the first region A1 and to adsorb the moisture in the air flowing through the first air passage P1 and the second region A2. 2 It is possible to humidify the air flowing through the air passage P2, and the humidification unit 3 can be compactly configured.

<Summary of air passages>
As shown in FIGS. 3 and 4, when the second fan 44 is operated, outdoor air is introduced into the first space R1 of the housing body 50 from the intake 55 of the introduction connection pipe 52. The air introduced into the first space R1 passes through the first region A1 of the suction member 41a, moves to the sixth space R6, and is discharged to the outside from the discharge port 56 of the discharge connection pipe 53.

Therefore, in the present embodiment, the inner space of the introduction connecting pipe 52, the first space R1, the sixth space R6, and the inner space of the discharge connecting pipe 53 are the second air passage through which air flows from the intake 55 to the discharge port 56. It constitutes P2. The first region A1 and the second fan 44 of the suction member 41a are arranged in the middle of the second air passage P2. The suction member 41a of the moisture absorption rotor 41 adsorbs the moisture in the air flowing through the second air passage P2 in the first region A1.

When the second fan 44 is operated, the air in the target space S1 flows into the accommodating recess 87a formed in the heat insulating material 87 from the inflow port 72 formed in the panel 51. The air flowing into the accommodating recess 87a flows in the vicinity of the temperature / humidity sensor 45 and is discharged to the outside from the discharge port 56 of the discharge connection pipe 53. Therefore, in the present embodiment, the accommodating recess 87a constitutes the third air passage P3.

The air flowing through the third air passage P3 is used only for detecting the temperature and humidity of the target space S1 and is discharged to the outside without passing through the moisture absorbing rotor 41, so that it contributes completely to the humidification of the target space S1. Not done. Therefore, the air volume of the air flowing through the third air passage P3 is smaller than the air volume of the air flowing through the second air passage P2 and the first air passage P1. In the present embodiment, the area of the inflow port 72 is made as small as possible to set the air volume of the air flowing through the third air passage P3 to be small, and the decrease in the humidification efficiency of the target space S1 is suppressed.

As shown in FIG. 4, when the second fan 44 is operated, the air flowing in from the intake port 55 flows into the cooling space R4a in the fourth space R4 from the inflow port 74b formed in the mounting frame 74 of the air filter 73. do. The air that has flowed into the cooling space R4a passes through the opening 66a formed in the sixth partition plate 66 after cooling the heat generating parts of the control device 46, flows into the sixth space R6, and is discharged to the outside from the discharge port 56. Will be done. Therefore, in the present embodiment, the cooling space R4a of the fourth space R4 constitutes the fourth air passage P4.

The fourth air passage P4 joins the second air passage P2 on the downstream side of the suction member 41a in the second air passage P2. Therefore, the path of the air discharged from the fourth air passage P4 through the second air passage P2 to the outside is a path that does not pass through the first region A1 of the adsorption member 41a. Assuming that the fourth air passage P4 joins the second air passage P2 on the upstream side of the suction member 41a, the warm air after cooling the heat-generating component passes through the first region A1 of the suction member 41a. Adsorption of water to the adsorption member 41a may be hindered. In the present embodiment, the fourth air passage P4 joins the second air passage P2 on the downstream side of the suction member 41a, and warm air after cooling the heat generating component may flow through the first region A1 of the suction member 41a. Therefore, the adsorption member 41a can efficiently adsorb water.

When the first fan 43 is operated, outdoor air is introduced into the first space R1 from the intake 55 of the introduction connection pipe 52, passes through the third region A3 of the suction member 41a, and is the space in front of the heater of the heater case 41f. Move to 41f1. The air that has moved to the heater front space 41f1 is heated by the heater 42 in the heater case 41f, moves to the heater rear space 41f2, passes through the second region A2 of the suction member 41a, and moves to the second space R2. The air that has moved to the second space R2 is blown out from the outlet 54 of the panel 51 to the target space S1 by the first fan 43.

Therefore, in the present embodiment, the inner space of the introduction connecting pipe 52, the first space R1, the space before the heater 41f1, the space after the heater 41f2, and the second space R2 are the first spaces in which air flows from the intake 55 to the outlet 54. It constitutes the air passage P1. A third region A3 and a second region A2, a heater 42, and a first fan 43 of the suction member 41a are arranged in the middle of the first air passage P1.

In the first air passage P1, the suction member 41a is preliminarily cooled by passing the air before being heated by the heater 42 through the third region A3 of the suction member 41a. The adsorption member 41a releases moisture into the air as the air warmed by the heater 42 passes through the second region A2 of the adsorption member 41a. As a result, the air passing through the second region A2 of the adsorption member 41a is humidified.

During the humidification operation, the air flowing through the first air passage P1 and the air flowing through the second air passage P2 both pass through the first space R1 which is the same space. However, the partition plate for distributing the air flowing through the first air passage P1 and the second air passage P2 is not provided in the first space R1. Since the second fan 44 is driven by an air volume larger than that of the first fan 43, a difference in air suction force occurs between the second fan 44 and the first fan 43, and the difference in the suction force causes the first This is because air is distributed to the air passage P1 and the second air passage P2. Since the air flowing through the first air passage P1 and the air flowing through the second air passage P2 both pass through the first space R1 which is the same space, the structure inside the housing body 50 can be simplified.

When the first fan 43 and the second fan 44 are operated during the ventilation operation, the outdoor air flows through the first air passage P1 and the second air passage P2 as in the humidification operation. However, since the moisture absorbing rotor 41 and the heater 42 are not driven, the air flowing through the first air passage P1 is discharged from the outlet 54 of the panel 51 to the target space S1 without being humidified by the suction member 41a of the moisture absorbing rotor 41. NS. The reason why not only the first fan 43 but also the second fan 44 is driven during the second ventilation operation is that the first fan 43 drives the first fan 43 because the air flow generated by the first fan 43 is smaller than that of the second fan 44. This is because it may be difficult to draw in the outdoor air through the introduction duct 48 just by making the air flow.

<Blow-out temperature adjustment control>
When the humidification operation is performed as described above, the air flowing through the first air passage P1 is humidified by passing through the moisture release region A2 of the adsorption member 41a after being heated by the heater 42, and is humidified from the air outlet 54 to the target space S1. It is blown out to. At this time, if the amount of water adsorbed on the adsorption member 41a is large, a large amount of water is released to the air blown out from the air outlet 54, and the temperature of the air is lowered. Therefore, low-temperature air may be blown out from the outlet 54, which may cause discomfort to the user in the target space S1. In particular, when the operation is started from the state where the humidification operation is stopped, it is unknown how much water is adsorbed on the adsorption member 41a, and if more water than expected is adsorbed, it is not suitable for the user. There is a high possibility that low-temperature air that gives a pleasant sensation will be blown out from the outlet 54.

When the temperature of the air blown out from the outlet 54 (hereinafter, also referred to as “blowout temperature”) is lower than a predetermined value, the humidification unit 3 of the present embodiment executes blowout temperature adjustment control to raise the blowout temperature. However, this suppresses the user from being uncomfortable.
Specifically, in the humidifying unit 3 of the present embodiment, the control device 46 executes any of the blowout temperature adjustment controls of the first to third aspects described below.

(First aspect)
As the first aspect of the blowout temperature adjustment control, the control device 46 adjusts the rotation speed of the suction member 41a of the moisture absorption rotor 41. The suction member 41a rotates via the ring gear 41b when the pinion gear 41c shown in FIG. 9 is rotated by a motor. The motor that rotates the pinion gear 41c is, for example, a stepping motor, and the rotation speed can be adjusted by the control device 46. As the rotation speed of the suction member 41a increases, the area of the suction member 41a arranged in the moisture release region A2 per unit time increases, and more water can be released. On the contrary, when the rotation speed of the suction member 41a becomes low, the area of the suction member 41a arranged in the moisture release region A2 per unit time becomes small, and the amount of water that can be released also becomes small. During the humidification operation, the control device 46 rotates the suction member 41a at a predetermined target rotation speed, but when the outlet temperature is low, the rotation speed of the suction member 41a is lowered below the target rotation speed, and the outlet The amount of water contained in the air blown out from 54 is reduced to suppress the decrease in the blowing temperature.

Hereinafter, the processing procedure of the control device 46 in the first aspect of the blowout temperature adjustment control will be described. FIG. 12 is a flowchart showing the processing procedure, and in particular, illustrates the processing procedure from the start to the end of the humidification operation of the humidifying unit 3.

As shown in FIG. 12, the control device 46 determines whether or not the user or the like has instructed to start the humidification operation (step S11). When instructed to start the humidification operation, the control device 46 drives the first fan 43, the second fan 44, the moisture absorption rotor 41, and the heater 42 to start the humidification operation (step S12).

The control device 46 acquires the temperature of the air blown out from the outlet 54 (step S13). Specifically, the control device 46 acquires the detection result of the temperature sensor 60 provided in the fan case 43b of the first fan 43.

The control device 46 determines whether or not the blowing temperature is equal to or lower than a predetermined threshold value (step S14). When the blowing temperature is lower than a predetermined threshold value (YES), the control device 46 rotates the suction member 41a at a speed lower than the target rotation speed during the humidification operation (step S15). As a result, it is possible to prevent the blowout temperature from rising and causing discomfort when the air blown out from the blowout port 54 hits the user.

On the other hand, when the temperature of the air blown out from the outlet 54 is higher than a predetermined threshold value (NO in step S14), the control device 46 rotates the suction member 41a at the target rotation speed during the humidification operation (step S16). ). Thereby, the target space S1 can be sufficiently humidified.

The control device 46 determines whether or not there is an instruction to stop the humidification operation by the user or the like (step S17), and if there is no instruction, returns the process to step S13 and repeatedly executes the above-described process. Therefore, the blowout temperature control is performed based on the blowout temperature until the humidification operation is completed. Therefore, it is possible to suppress a decrease in the blowing temperature not only immediately after the start of the humidification operation but also during the humidification operation. Therefore, even when the outdoor humidity rises due to rainfall or the like during the humidification operation and the amount of water adsorbed on the adsorption member 41a increases, the blowing temperature adjustment control can be performed.

In the first aspect, the control device 46 may perform control to further reduce the rotation speed of the suction member 41a as the detection temperature of the temperature sensor 60 becomes lower. Thereby, the decrease in the blowing temperature can be efficiently suppressed.

(Second aspect)
As the second aspect of the blowout temperature adjustment control, the control device 46 adjusts the rotation speed of the second fan 44. The second fan 44 is inverter-controlled by the control device 46, and the rotation speed can be adjusted. When the rotation speed of the second fan 44 increases, the air volume of air passing through the moisture absorbing region A1 of the adsorption member 41a increases, and the amount of water adsorbed on the moisture absorbing region A1 increases. Therefore, it is possible to increase the amount of water released from the adsorption member 41a into the air flowing through the first air passage P1. On the contrary, when the rotation speed of the second fan 44 becomes low, the air volume of the air passing through the moisture absorbing region A1 of the adsorption member 41a decreases, and the amount of water adsorbed on the moisture absorbing region A1 decreases. Therefore, it is possible to reduce the amount of water released from the adsorption member 41a into the air flowing through the first air passage P1.

During the humidifying operation, the control device 46 rotates the second fan 44 at a predetermined target rotation speed, but when the blowing temperature is low, the rotation speed of the second fan 44 is lowered below the target rotation speed to blow. The amount of water contained in the air blown out from the outlet 54 is reduced, and the decrease in the blowout temperature is suppressed.

Hereinafter, the processing procedure of the control device 46 in the second aspect of the blowout temperature adjustment control will be described. FIG. 13 is a flowchart showing the processing procedure, and in particular, shows the processing procedure of the control device 46 from the start to the end of the humidification operation.

In steps S21 to S24 in FIG. 13, the control device 46 executes the same processing as in steps S11 to S14 (see FIG. 12) in the first aspect.
When the blowing temperature is lower than the predetermined threshold value (YES in step S24), the control device 46 rotates the second fan 44 at a speed lower than the target rotation speed during the humidification operation (step S25). As a result, the blowout temperature rises, and even if the air blown out from the blowout port 54 hits the user, it is possible to suppress the discomfort.

On the other hand, when the temperature of the air blown out from the outlet 54 is higher than a predetermined threshold value, the control device 46 rotates the second fan 44 at the target rotation speed during the humidification operation (step S26). Thereby, the target space S1 can be sufficiently humidified.

After that, in steps S27 and S28 in FIG. 13, the control device 46 executes the same processing as steps S17 and S18 (see FIG. 12) in the first aspect.

In the second aspect, when the rotation speed of the second fan 44 is lowered, the ratio of the rotation speeds of the first fan 43 and the second fan 44 changes, and the first fan 43 with respect to the rotation speed of the second fan 44 changes. The ratio of the number of revolutions will increase. When the outdoor air is taken in from the intake 55 by the first fan 43 and the second fan 44, flows through the air passage common to the first air passage P1 and the second air passage P2, and passes through the suction member 41a. Divided into two directions. Therefore, when the ratio of the rotation speed of the first fan 43 to the rotation speed of the second fan 44 increases, the air volume of the air passing through the moisture release region A2 of the adsorption member 41a relatively increases, and the amount of water contained in the air. May increase. Therefore, in the second aspect, it is preferable that the control device 46 not only lowers the rotation speed of the second fan 44, but also lowers the rotation speed of the first fan 43. In this case, it is more preferable to reduce the rotation speeds of both the first fan 43 and the second fan 44 so that the ratio of the rotation speeds of the first fan 43 and the second fan 44 is kept constant.

In the above second aspect, the control device 46 may perform control to further reduce the rotation speed of the second fan 44 as the detection temperature of the temperature sensor 60 becomes lower. Thereby, the decrease in the blowing temperature can be efficiently suppressed.

(Third aspect)
As a third aspect of the blowout temperature adjustment control, the control device 46 adjusts the output of the heater 42. The heater 42 is inverter-controlled by the control device 46, and the output can be adjusted. When the output of the heater 42 becomes high, the blowing temperature rises. On the contrary, when the output of the heater 42 becomes low, the blowing temperature decreases. During the humidification operation, the control device 46 operates the heater 42 at a predetermined target output, but when the outlet temperature is low, the output of the heater 42 is made higher than the target output to raise the outlet temperature.

Hereinafter, the processing procedure of the control device 46 in the third aspect of the blowout temperature adjustment control will be described. FIG. 14 is a flowchart showing the processing procedure, and in particular, shows the processing procedure of the control device 46 from the start to the end of the humidification operation.

In steps S31 to S34 in FIG. 14, the control device 46 executes the same processing as in steps S11 to S14 (see FIG. 12) in the first aspect.
When the blowing temperature is lower than the predetermined threshold value (YES in step S34), the control device 46 operates the heater 42 at an output higher than the target output during the humidification operation (step S35). As a result, the blowout temperature rises, and even if the air blown out from the blowout port 54 hits the user, it is possible to suppress the discomfort.

On the other hand, when the temperature of the air blown out from the outlet 54 is higher than a predetermined threshold value (NO in step S34), the control device 46 operates the output of the heater 42 at the target output during the humidification operation (step S36). ).

After that, in steps S37 and S38 in FIG. 14, the control device 46 executes the same processing as in steps S17 and S18 (see FIG. 12) in the first aspect.

In the above third aspect, the control device 46 may perform control to increase the output of the heater 42 as the detection temperature of the temperature sensor 60 becomes lower. Thereby, the decrease in the blowing temperature can be efficiently suppressed.

<Other embodiments>
In the first and second aspects of the blowout temperature adjustment control described above, since the amount of water contained in the air blown out from the blowout port 54 is reduced, the performance of humidifying the target space S1 is lowered. The third aspect of the blowout temperature adjustment control is a control for increasing the power consumption in order to increase the output of the heater 42. Therefore, when there is no person in the target space S1 and the situation does not cause discomfort, it is preferable to efficiently humidify the target space S1 by normal humidification operation without performing the blowout temperature adjustment control.

Therefore, as shown in FIG. 1, a person detection sensor 90 is provided in the humidification unit 3 or other places, and the blowout temperature adjustment control is performed only when the person detection sensor 90 detects a person in the target space S1. The humidification unit 3 can be configured as described above. As a result, it is possible to suppress a decrease in the humidification efficiency of the target space S1 and an increase in power consumption due to the blowout temperature adjustment control.

In the moisture absorbing rotor 41 of the above embodiment, the suction member 41a is rotated by a gear mechanism including a ring gear 41b and a pinion gear 41c, but the suction member 41a may be rotated by another rotation transmission mechanism using a belt, a chain or the like. good.
The rotation speed of the motor for rotating the suction member 41a may be adjusted by inverter control.

The panel 51 of the above embodiment is composed of one member, but may be composed of a plurality of members. For example, a first panel member that closes the bottom surface of the housing body 50 and substantially constitutes the bottom plate of the housing body 50, and a second panel member that covers the lower part of the first panel member and is exposed to the target space S1 side. It may be composed of. In this case, the air outlet 54 and the inflow port 72 of the panel 51 are formed on both the first and second panel members.

The above-mentioned blowout temperature adjustment control may be performed only at the start of operation of the humidifying unit 3 in which the blowout temperature tends to decrease.

<Action and effect of the embodiment>
(1) The humidifying unit 3 of the above embodiment includes an adsorption member 41a having a moisture absorption region A1 for adsorbing moisture and a moisture release region A2 for releasing moisture, a heater 42 for heating the moisture release region A2 of the adsorption member 41a, and the like. A first fan 43 and a second fan 44 that generate an air flow, a housing 47 that houses a suction member 41a, a heater 42, a first fan 43, and a second fan 44, a control device 46, and a temperature sensor 60. To be equipped. The housing 47 has a first air passage P1 in which air taken in from the outside by the first fan 43 is blown out to the target space S1 via the moisture release region A2 of the adsorption member 41a, and the second fan 44 from the outside. It has a second air passage P2 in which the taken-in air is discharged to the outside via the moisture absorbing region A1 of the adsorption member 41a. The suction member 41a is rotationally driven to move the moisture absorption region A1 and the moisture release region A2 of the suction member 41a. The temperature sensor 60 detects the temperature of the air blown from the first air passage P1 into the target space. The control device 46 executes the first aspect of the blowout temperature adjustment control for lowering the rotation speed of the suction member 41a to be lower than the predetermined target rotation speed in the humidification operation when the detection result of the temperature sensor 60 is equal to or less than a predetermined threshold value. ..

With the above configuration, when the detection result of the temperature sensor 60 is equal to or less than the threshold value, the rotation speed of the suction member 41a is reduced, and the moisture released from the moisture release region A2 of the suction member 41a into the air flowing through the first air passage P1. The amount can be reduced, and a decrease in the temperature of the air blown out to the target space S1 can be suppressed. Therefore, it is possible to suppress giving discomfort to the user in the target space S1.

(2) In the first aspect of the blowout temperature adjustment control, the control device 46 lowers the rotation speed of the suction member 41a as the detection result of the temperature sensor 60 is lower.
With such a configuration, the lower the temperature of the air blown out into the target space S1, the smaller the amount of water released from the adsorption member 41a into the air, and the lowering of the temperature of the air can be efficiently suppressed. ..

(3) As another example from the above (1), when the detection result of the temperature sensor 60 is equal to or less than a predetermined threshold value, the control device 46 sets the rotation speed of the second fan 44 to a predetermined target rotation speed in the humidification operation. The second aspect of the blowout temperature adjustment control which lowers the blowout temperature is carried out. In this case, when the detection result of the temperature sensor 60 is equal to or less than the threshold value, the rotation speed of the second fan 44 is lowered, so that the amount of water adsorbed to the moisture absorbing region of the adsorbing member 41a is reduced, thereby releasing the adsorbing member 41a. The amount of water released from the wet region A2 to the air flowing through the first air passage P1 can be reduced, and the decrease in the temperature of the air blown out into the target space S1 can be suppressed. Therefore, it is possible to suppress giving discomfort to the user in the target space S1.

(4) In the second aspect of the blowout temperature adjustment control, the control device 46 lowers the rotation speed of the second fan 44 as the detection result of the temperature sensor 60 is lower. As a result, the lower the temperature of the air blown into the target space S1, the smaller the amount of water adsorbed by the adsorption member 41a, and the lowering of the temperature of the air blown into the target space S1 can be efficiently suppressed. ..

(5) In the above embodiment, the first air passage P1 and the second air passage P2 include a common air passage from the time when the outdoor air is taken in to the time when the suction member 41a is reached. When the detection result of the temperature sensor 60 is equal to or less than a predetermined threshold value, the control device 46 lowers the rotation speed of the first fan 43 below the predetermined target rotation speed in the humidifying operation. As a result, not only the rotation speed of the second fan 44 but also the rotation speed of the first fan 43 is reduced, so that the balance between the air flow volume of the air flow by the first fan 43 and the air flow rate of the air flow by the second fan 44 is not significantly impaired. The overall air volume can be reduced, and the decrease in the temperature of the air blown out into the target space S1 can be reliably suppressed.

(6) As another example from the above (1) and (3), the control device 46 sets the output of the heater 42 to a predetermined target output in the humidifying operation when the detection result of the temperature sensor 60 is equal to or less than a predetermined threshold value. The third aspect of the blowout temperature adjustment control to be higher than the above is executed. In this case, since the output of the heater 42 is increased when the detection result of the temperature sensor 60 is equal to or less than the threshold value, the temperature of the air blown out to the target space S1 can be directly increased. Therefore, it is possible to suppress giving discomfort to the user in the target space S1.

(7) In the third aspect of the blowout temperature adjustment control, the control device 46 increases the output of the heater 42 as the detection result of the temperature sensor 60 becomes lower. Therefore, the lower the temperature of the air blown into the target space S1, the higher the output of the heater 42, and the more efficiently the temperature of the air blown into the target space S1 can be raised.

(8) In the above embodiment, the humidification unit 3 includes a person detection sensor 90 that detects a person in the target space S1, and the control device 46 controls blowing temperature adjustment when the person detection sensor 90 detects a person. To execute. As a result, the blowout temperature adjustment control can be performed only when there is a person in the target space S1, and the normal humidification operation can be performed when there is no person. Therefore, the humidification performance of the target space S1 is lowered or the power consumption is increased. Can be suppressed.

The present disclosure is not limited to the above examples, and is shown by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

3: Humidification unit 41a: Adsorption member 42: Heater 43: First fan 44: Second fan 46: Control device 47: Housing 60: Temperature sensor 90: Human detection sensor A1: First area (moisture absorption area)
A2: Second area (moisture release area)
P1: First air passage P2: Second air passage S1: Target space

Claims (10)

A humidifying unit that performs a humidifying operation to humidify the target space.
An adsorption member (41a) having a moisture absorbing region (A1) for adsorbing moisture and a moisture releasing region (A2) for releasing moisture, and an adsorption member (41a).
A heater (42) that heats the moisture release region (A2) of the adsorption member (41a), and
The first fan (43) and the second fan (44) that generate an air flow,
A housing (47) accommodating the suction member (41a), the heater (42), the first fan (43), and the second fan (44).
Control device (46) and
Equipped with a temperature sensor (60)
In the housing (47), air taken in from the outside by the first fan (43) is blown out to the target space (S1) via the moisture release region (A2) of the adsorption member (41a). A second air passage (P1) and a second air passage (P1) in which air taken in from the outside by the second fan (44) is discharged to the outside via a moisture absorption region (A1) of the adsorption member (41a). Has P2) and
The suction member (41a) is rotationally driven to move the moisture absorption region (A1) and the moisture release region (A2) in the adsorption member (41a).
The temperature sensor (60) detects the temperature of the air blown from the first air passage (P1) to the target space (S1).
When the detection result of the temperature sensor (60) is equal to or less than a predetermined threshold value, the control device (46) lowers the rotation speed of the suction member (41a) below a predetermined target rotation speed in the humidification operation. A humidification unit that performs temperature control. The humidification unit according to claim 1, wherein in the blowout temperature adjustment control, the control device (46) lowers the rotation speed of the suction member (41a) as the detection result is lower. A humidifying unit that performs a humidifying operation to humidify the target space.
An adsorption member (41a) having a moisture absorbing region (A1) for adsorbing moisture and a moisture releasing region (A2) for releasing moisture, and an adsorption member (41a).
A heater (42) that heats the moisture release region (A2) of the adsorption member (41a), and
The first fan (43) and the second fan (44) that generate an air flow,
A housing (47) accommodating the suction member (41a), the heater (42), the first fan (43), and the second fan (44).
Control device (46) and
Equipped with a temperature sensor (60)
In the housing (47), air taken in from the outside by the first fan (43) is blown out to the target space (S1) via the moisture release region (A2) of the adsorption member (41a). A second air passage (P1) and a second air passage (P1) in which air taken in from the outside by the second fan (44) is discharged to the outside via a moisture absorption region (A1) of the adsorption member (41a). Has P2) and
The temperature sensor (60) detects the temperature of the air blown from the first air passage (P1) to the target space (S1).
When the detection result of the temperature sensor (60) is equal to or less than a predetermined threshold value, the control device (46) lowers the rotation speed of the second fan (44) to be lower than the predetermined target rotation speed in the humidification operation. A humidifying unit that performs blowout temperature adjustment control. The humidification unit according to claim 3, wherein in the blowout temperature adjustment control, the control device (46) lowers the rotation speed of the second fan (44) as the detection result is lower. The first air passage (P1) and the second air passage (P2) include a common air passage from taking in outdoor air to reaching the suction member (41a).
The humidification unit according to claim 3 or 4, wherein in the blowout temperature adjustment control, the control device (46) lowers the rotation speed of the first fan (43) below a predetermined target rotation speed in the humidification operation. .. A humidifying unit that performs a humidifying operation to humidify the target space.
An adsorption member (41a) having a moisture absorbing region (A1) for adsorbing moisture and a moisture releasing region (A2) for releasing moisture, and an adsorption member (41a).
A heater (42) that heats the moisture release region (A2) of the adsorption member (41a), and
The first fan (43) and the second fan (44) that generate an air flow,
A housing (47) accommodating the suction member (41a), the heater (42), the first fan (43), and the second fan (44).
A control device (46) that controls the operation of the heater (42) and
Equipped with a temperature sensor (60)
In the housing (47), air taken in from the outside by the first fan (43) is blown out to the target space (S1) via the moisture release region (A2) of the adsorption member (41a). A second air passage (P1) and a second air passage (P1) in which air taken in from the outside by the second fan (44) is discharged to the outside via a moisture absorption region (A1) of the adsorption member (41a). Has P2) and
The temperature sensor (60) detects the temperature of the air blown from the first air passage (P1) to the target space (S1).
The control device (46) controls blowing temperature to make the output of the heater (42) higher than a predetermined target output in the humidifying operation when the detection result of the temperature sensor (60) is equal to or less than a predetermined threshold value. Humidification unit to perform. The humidification unit according to claim 6, wherein in the blowout temperature adjustment control, the control device (46) increases the output of the heater (42) as the detection result is lower. A person detection sensor (90) for detecting a person in the target space (S1) is further provided.
The humidification unit according to any one of claims 1 to 7, wherein the control device (46) executes the blowout temperature adjustment control when the person detection sensor (90) detects a person. The humidification unit according to any one of claims 1 to 8, wherein the adsorption member (41a) has a property of adsorbing more water as the temperature is lower. Any of claims 1 to 9, wherein the moisture release region (A2) of the adsorption member (41a) is arranged on the downstream side of the heater (42) in the air flow direction of the first air passage (P1). The humidifying unit according to item 1.

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