JP2020200985A - Humidity control unit and humidity control system - Google Patents

Abstract

To reduce the size of a humidity control unit.SOLUTION: A humidity control unit (10) includes: an air passage (12) communicating a first space (S1) that is an object space and a second space (S2) with each other; moisture absorption parts (30, 32) disposed in the air passage (12) absorbing moisture from air and releasing moisture to air; heat sources (21, 22, 32) disposed in the air passage (12) and performing at least one of cooling and heating of the moisture absorption parts (30, 32); an air conveyance mechanism (M) conveying air reversibly in the air flowing direction of the air passage (12); and a control device (C) controlling the heat sources (21, 22, 32) and the air conveyance mechanism (M).SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a humidity control unit and a humidity control system.

The humidity control device of Patent Document 1 includes two adsorption heat exchangers. The humidity control device dehumidifies the outdoor air with one of the adsorption heat exchangers and supplies it to the room, and at the same time, regenerates the adsorbent of the other adsorption heat exchanger with the indoor air.

Patent No. 4569150

The humidity control device of Patent Document 1 separately provides a flow path for supplying outdoor air to the room and a flow path for discharging indoor air to the outside, which causes a problem that the size of the humidity control device becomes large. was there.

An object of the present disclosure is to reduce the size of the humidity control unit.

In the first aspect, the air passage (12) communicating the first space (S1) and the second space (S2), which are the target spaces, and the air passage (12) are arranged to absorb moisture from the air. A heat source (21,22,) arranged in the air passage (12) and performing at least one of cooling and heating of the moisture absorbing portion (30,32) and a moisture absorbing portion (30,32) for releasing moisture to the air. 32), the air transport mechanism (M) that reversibly conveys the air flow direction in the air passage (12), the heat source (21,22,32), and the air transport mechanism (M) are controlled. It is a humidity control unit characterized by being equipped with a control device (C).

In the first aspect, the air flow direction can be switched in both directions by the air transport mechanism (M). Therefore, the air in the second space (S2) can be conveyed to the first space (S1) after passing through the moisture absorbing portion (30,32) and the heat source (21,22,32). The air in the first space (S1) can be conveyed to the second space (S2) after passing through the moisture absorbing portion (30,32) and the heat source (21,22,32). Since the air passage (12) is shared in these two operations, the humidity control unit (10) can be miniaturized.

In the second aspect, in the first aspect, the control device (C) cools the moisture absorbing portion (30,32) by the heat source (21,22,32) and by the air transport mechanism (M). The humidity control unit is characterized in that the first operation of transporting the air in the second space (S2) to the first space (S1) is executed.

The heat source (21,22,32) may directly cool the moisture absorbing portion (30,32), or the moisture absorbing portion (30,32) may be cooled by the air cooled by the heat source (21,22,32). It may be cooled indirectly.

In the second aspect, in the first operation, the air in the second space (S2) is dehumidified by the moisture absorbing portions (30, 32) and then transported to the first space (S1).

In the third aspect, in the second aspect, the control device (C) heats the moisture absorbing portion (30,32) by the first operation and the heat source (21,22,32) and the air. The humidity control unit is characterized in that the second operation of transporting the air in the first space (S1) to the second space (S2) is alternately executed by the transport mechanism (M).

The heat source (21,22,32) may directly heat the hygroscopic part (30,32), or the hygroscopic part (30,32) may be heated by the air heated by the heat source (21,22,32). It may be heated indirectly.

In the third aspect, in the first operation, the air in the second space (S2) is dehumidified by the moisture absorbing portions (30, 32) and then transported to the first space (S1). In the second operation, the air in the first space (S1) takes moisture from the moisture absorbing portions (30, 32) and then is transported to the second space (S2).

A fourth aspect is that, in the third aspect, the control device (C) stops the air transport mechanism (M) for a predetermined period after the end of the first operation and before the start of the second operation. It is a feature.

In the fourth aspect, the air transport mechanism (M) is stopped after the end of the first operation. During this period, the low-humidity air conveyed to the first space (S1) can be diffused.

In a fifth aspect, in the third or fourth aspect, the control device (C) stops the air transport mechanism (M) for a predetermined period after the end of the second operation and before the start of the first operation. It is a humidity control unit characterized by being allowed to operate.

In the fifth aspect, the air transport mechanism (M) is stopped after the end of the second operation. Highly humid air transported to the second space (S2) can be diffused during this period.

In the sixth aspect, in any one of the first to fifth aspects, the control device (C) heats the moisture absorbing portion (30,32) by the heat source (21,22,32) and said. The humidity control unit is characterized in that a third operation of transporting air in the second space (S2) to the first space (S1) is executed by an air transport mechanism (M).

In the sixth aspect, in the third operation, the air in the second space (S2) is humidified by the moisture absorbing portions (30, 32) and then transported to the first space (S1).

In a seventh aspect, in the sixth aspect, the control device (C) cools the moisture absorbing portion (30,32) by the third operation and the heat source (21,22,32) and the air. The humidity control unit is characterized in that the fourth operation of transporting the air in the first space (S1) to the second space (S2) is alternately executed by the transport mechanism (M).

In the seventh aspect, in the third operation, the air in the second space (S2) is humidified by the moisture absorbing portions (30, 32) and then transported to the first space (S1). In the fourth operation, the air in the first space (S1) imparts moisture to the moisture absorbing portions (30, 32) and then is conveyed to the second space (S2).

In the eighth aspect, in the seventh aspect, the control device (C) stops the air transport mechanism (M) for a predetermined period after the end of the third operation and before the start of the fourth operation. It is a characteristic humidity control unit.

In the eighth aspect, the air transport mechanism (M) is stopped after the end of the third operation. During this period, the highly humid air transported to the first space (S1) can be diffused.

In the ninth aspect, in the seventh or eighth aspect, the control device (C) stops the air transport mechanism (M) for a predetermined period after the end of the fourth operation and before the start of the third operation. It is a humidity control unit characterized by being allowed to operate.

In the ninth aspect, the air transport mechanism (M) is stopped after the end of the fourth operation. During this period, the low-humidity air conveyed to the second space (S1) can be diffused.

A tenth aspect is, in any one of the first to ninth aspects, characterized in that the first space (S1) is an indoor space and the second space (S2) is an outdoor space. It is a wet unit.

In the tenth aspect, the air passage (12) communicates the indoor space (S1) with the outdoor space (S2). The air transport mechanism (M) can switch between the operation of supplying the air in the outdoor space (S2) to the indoor space (S1) and the operation of discharging the air in the indoor space (S1) to the outdoor space (S2). ..

An eleventh aspect is characterized in that, in any one of the first to tenth aspects, the heat source (21,22,32) includes a heat exchange unit (21,22,32) through which a heat medium flows. It is a humidity control unit.

In the eleventh aspect, the air and the heat medium exchange heat at the heat exchange section (21,22,32).

In a twelfth aspect, the heat exchange section is arranged on the first space (S1) side of the moisture absorbing section (30) to cool and heat air, and the first heat exchanger (21). It is characterized in that it is arranged on the second space (S2) side of the moisture absorbing portion (30) and includes a second heat exchanger (22) that cools and heats air.

In the twelfth aspect, the air cooled or heated by the first heat exchanger (21) can be passed through the moisture absorbing portion (30, 32). Air cooled or heated by the second heat exchange section (21,22,32) can be passed through the moisture absorbing section (30,32).

In the thirteenth aspect, in the eleventh aspect, the heat exchange unit is an adsorption heat exchanger (32) having an adsorbent that adsorbs and desorbs water and also serves as the moisture absorbing unit (30, 32). It is a humidity control unit characterized by being present.

In the thirteenth aspect, the adsorbent is cooled or heated by the heat medium flowing through the adsorption heat exchanger (32).

A fourteenth aspect is a humidity control unit comprising a refrigerant circuit (R) in which a refrigerant as a heat medium circulates and performs a refrigeration cycle in any one of the eleventh to thirteenth aspects. Is.

A fifteenth aspect is characterized in that, in the fourteenth aspect, an outdoor unit (20a) having a compressor (23) and an outdoor heat exchanger (24) connected to the refrigerant circuit (R) is provided. It is a humidity control unit.

A sixteenth aspect is a humidity control unit according to any one of the first to fourth aspects, wherein the air transport mechanism (M) is a fan capable of rotating in the forward direction and the reverse direction. is there.

In the sixteenth aspect, the air flow in the air passage (12) is switched in both directions by switching the rotation direction of the fan to the reverse direction of the forward direction.

A seventeenth aspect is, in any one of the first to fourth aspects, the air transport mechanism (M) includes a first fan (44) that blows air toward the first space (S1). It is characterized by including a second fan (45) that blows air toward the second space (S2).

In the seventeenth aspect, the air in the second space (S2) can be conveyed to the first space (S1) by operating the first fan (44). By operating the second fan (45), the air in the first space (S1) can be conveyed to the second space (S2).

In the eighteenth aspect, in any one of the first to fourth aspects, the air transport mechanism (M) has at least one fan (46) and an air flow path of the air passage (12). A flow path switching mechanism (D1, D2, D3) for switching between the first state and the second state is provided, and in the air passage (12) in the first state, the air conveyed to the fan (46) is the second. In the air passage (12) in the second state, which flows from the space (S2) to the first space (S1), the air conveyed to the fan (46) flows from the first space (S1) to the second space. It is a humidity control unit characterized by flowing to (S2).

In the eighteenth aspect, air is conveyed by a fan (46). By switching the air flow path between the first state and the second state by the flow path switching mechanism (D1, D2, D3), the flow direction of the air passage (12) becomes reversible.

A nineteenth aspect is the center of the opening (13) on the first space (S1) side of the air passage (12) and the first aspect of the air passage (12) in any one of the first to eighteenth aspects. The humidity control unit is characterized in that the center of the opening (14) on the two space (S2) side is substantially aligned with the air flow direction of the air passage (12).

In the nineteenth aspect, the passage resistance of the air passage (12) can be reduced.

In the twentieth aspect, in any one of the first to the ninth aspects, the air passage (12) forms a wall (W) separating the first space (S1) and the second space (S2). It is a humidity control unit characterized by being provided so as to penetrate.

In the 21st aspect, in any one of the 1st to 19th aspects, the air passage (12) has an indoor space (S1) as the first space and an outdoor space (S2) as the second space. ), The humidity control unit is provided in the window (5) or the window frame (6).

In the 22nd aspect, in any one of the 1st to 21st aspects, the air passage (12) is more than the moisture absorbing portion (30,32) and the heat source (21,22,32). A filter (38) arranged closer to the outdoor space (S2) as two spaces is provided, and the filter (38) conveys air from the indoor space (S1) as the first space to the outdoor space (S2). This is a humidity control unit characterized in that dust adhering to the filter (38) is removed by air during the operation.

In the 22nd aspect, dust in the outdoor air can be collected by the filter (38). Dust adhering to the filter (38) can be discharged to the outdoor space (S2) by air.

The 23rd aspect is a humidity control system including a plurality of humidity control units for controlling the humidity in the target space, and the plurality of humidity control units are the humidity control units of any one of the first to the 22nd aspects. It is a humidity control system characterized by being.

In the 23rd aspect, the room can be dehumidified and humidified by the plurality of humidity control units (10).

The 24th aspect is characterized in that, in the 23rd aspect, the interlocking control unit (C) for cooperatively controlling the plurality of humidity control units (10) is provided.

In the 24th aspect, a plurality of humidity control units (10) cooperate with each other to operate.

In the 25th aspect, in the 24th aspect, the plurality of humidity control units (10) include at least one first humidity control unit (10A) and at least one second humidity control unit (10B). The first humidity control unit (10A) and the second humidity control unit (10B) cool the moisture absorbing portion (30,32) by the heat source (21,22,32) and the air transport mechanism (M). The first operation of transporting the air in the second space (S2) to the first space (S1), and the heat source (21,22,32) heating the moisture absorbing portion (30,32) and transporting the air. The mechanism (M) is configured to alternately execute the second operation of transporting the air in the first space (S1) to the second space (S2), and the interlocking control unit (C) is the first. When the second humidity control unit (10B) performs the second operation and the first humidity control unit (10A) performs the second operation when the first humidity control unit (10A) performs the first operation. A humidity control system characterized in that the first humidity control unit (10A) and the second humidity control unit (10B) are controlled so that the second humidity control unit (10B) performs the first operation. Is.

In the 25th aspect, the first space (S1) can be continuously dehumidified and ventilated.

In the 26th aspect, in the 25th aspect, at least one of the first humidity control unit (10A) and the second humidity control unit (10B) is said to be between the first operation and the second operation. The air transport mechanism (M) is configured to be stopped for a predetermined period, and the interlocking control unit (C) is set during one of the stop periods of the first humidity control unit (10A) and the second humidity control unit (10B). , The first humidity control unit (10A) and the second humidity control unit (10A) so that the other of the first humidity control unit (10A) and the second humidity control unit (10B) performs the first operation or the second operation. It is a humidity control system characterized by controlling 10B).

In the 26th aspect, the air conveyed to the first space (S1) or the second space (S2) can be diffused by stopping the air transfer mechanism (M) between the first operation and the second operation. At this time, the humidity control unit (10) different from the stopped humidity control unit (10) performs the first operation or the second operation. As a result, ventilation of the first space (S1) can be performed even during the period when the air transport mechanism (M) of one of the humidity control units (10) is stopped.

In the 27th aspect, in the 25th or 26th aspect, the first humidity control unit (10A) and the second humidity control unit (10B) are provided with the moisture absorbing portion (21,22,32) by the heat source (21,22,32). The third operation of heating 30,32) and transporting the air in the second space (S2) to the first space (S1) by the air transport mechanism (M) and the heat source (21, 22, 32) The fourth operation of cooling the moisture absorbing portions (30, 32) and transporting the air in the first space (S1) to the second space (S2) by the air transport mechanism (M) is alternately executed. In the interlocking control unit (C), when the first humidity control unit (10A) performs the third operation, the second humidity control unit (10B) performs the fourth operation, and the second operation is performed. The first humidity control unit (10A) and the second humidity control unit (10A) so that the second humidity control unit (10B) performs the third operation when the first humidity control unit (10A) performs the fourth operation. It is a humidity control system characterized by controlling the unit (10B).

In the 27th aspect, the first space (S1) can be continuously humidified and ventilated.

In the 28th aspect, in the 27th aspect, at least one of the first humidity control unit (10A) and the second humidity control unit (10B) is said to be between the third operation and the fourth operation. The air transport mechanism (M) is configured to be stopped for a predetermined period, and the interlocking control unit (C) is set during one of the stop periods of the first humidity control unit (10A) and the second humidity control unit (10B). , The first humidity control unit (10A) and the second humidity control unit (10A) so that the other of the first humidity control unit (10A) and the second humidity control unit (10B) performs the third operation or the fourth operation. It is a humidity control system characterized by controlling 10B).

In the 28th aspect, the air conveyed to the first space (S1) or the second space (S2) can be diffused by stopping the air transfer mechanism (M) between the third operation and the fourth operation. At this time, the humidity control unit (10) different from the stopped humidity control unit (10) performs the third operation or the fourth operation. As a result, ventilation of the first space (S1) can be performed even during the period when the air transport mechanism (M) of one of the humidity control units (10) is stopped.

The 29th aspect includes the first determination unit (71) for determining the degree of air pollution in the second space (S2) in any one of the 24th to 28th aspects, and the interlocking control unit ( In C), when at least the condition that the degree of air pollution is determined to be higher than the predetermined value by the first determination unit (71) is satisfied, the total air supply amount of the plurality of humidity control units (10) is increased. The humidity control system is characterized in that the plurality of humidity control units (10) are controlled so as to be larger than the total displacement of the humidity control unit (10).

In the 29th aspect, the total air supply amount of the plurality of humidity control units (10) becomes larger than the total displacement amount under the condition that the degree of air pollution in the second space (S2) is high. As a result, it is possible to prevent air having a high degree of pollution from entering the first space (S1).

The thirtieth aspect includes the intrusion detection unit (70) for detecting the intrusion of air from the second space (S2) into the first space (S1) in the 29th aspect, and the interlocking control unit (C). ) Shall satisfy at least the condition that the degree of air pollution is determined to be higher than the predetermined value by the first determination unit (71) and the condition that the intrusion detection unit (70) detects the intrusion of air. The feature is that the plurality of humidity control units (10) are controlled so that the total air supply amount of the plurality of humidity control units (10) is larger than the total exhaust volume of the plurality of humidity control units (10). It is a humidity control system.

In the thirtieth aspect, a plurality of humidity control units (under conditions where the degree of air pollution in the second space (S2) is high and air invades from the second space (S2) to the first space (S1)). 10) The total air supply amount becomes larger than the total exhaust amount. As a result, it is possible to prevent air having a high degree of pollution from entering the first space (S1).

A thirty-first aspect includes a second determination unit (72) for determining the degree of air pollution in the first space (S1) in any one of the 24th to 30th aspects, and the interlocking control unit ( In C), when at least the condition that the degree of air pollution is determined to be higher than the predetermined value by the second determination unit (72) is satisfied, the total displacement of the plurality of humidity control units (10) is increased. The humidity control system is characterized in that the plurality of humidity control units (10) are controlled so as to be larger than the total air supply amount of the humidity control unit (10).

In the 31st aspect, the total exhaust amount of the plurality of humidity control units (10) becomes larger than the total air supply amount under the condition that the degree of air pollution in the first space (S1) is hard. As a result, air with a high degree of pollution can be discharged to the second space (S2).

In the 32nd aspect, in any one of the 24th to 31st, the air volume detecting unit (73) for detecting the air supply amount or the exhaust amount of the ventilation device (8) installed in the first space (S1). The interlocking control unit (C) has an approximate total air supply amount and total exhaust amount in the first space (S1) based on the air supply amount or the exhaust amount detected by the air volume detection unit (73). It is a humidity control system characterized in that the plurality of humidity control units (10) are controlled so as to match.

In the 32nd aspect, even if the ventilation device (8) in the first space (S1) is supplied or exhausted, the total air supply amount and the total exhaust amount in the first space (S1) and the second space (S2) are provided. Can be balanced with.

FIG. 1 is a schematic plan view of a house to which the humidity control system according to the embodiment is applied. FIG. 2 is a schematic configuration diagram of the humidity control unit according to the embodiment, and represents the humidity control unit during the first operation or the third operation. FIG. 3 is a schematic configuration diagram of the humidity control unit according to the embodiment, and represents the humidity control unit during the second operation or the fourth operation. FIG. 4 is a timing chart of the dehumidifying operation of the humidity control system of the embodiment. FIG. 5A is a schematic plan view of a house to which the humidity control system according to the embodiment is applied, and shows the air flow of the first operation or the third operation. FIG. 5B is a schematic plan view of a house to which the humidity control system according to the embodiment is applied, and shows the air flow of the second operation or the fourth operation. FIG. 6 is a timing chart of the humidification operation of the humidity control system of the embodiment. FIG. 7 is a timing chart of the dehumidifying operation of the humidity control system of the first modification. FIG. 8 is a timing chart of the humidification operation of the humidity control system of the first modification. FIG. 9 is a schematic configuration diagram of the humidity control unit according to the modified example 3. FIG. 10 is a schematic configuration diagram of the humidity control unit according to the modified example 5. FIG. 11 is a schematic configuration diagram of the moisture absorbing unit according to the modified example 6. FIG. 12 is a schematic configuration diagram of the moisture absorbing unit according to the modified example 7. FIG. 13 is a schematic configuration diagram of the moisture absorbing unit according to the modified example 8. FIG. 14 is a schematic configuration diagram of the moisture absorbing unit according to the modified example 9. FIG. 15 is a schematic configuration diagram of the humidity control unit according to the modified example 10, and shows the humidity control unit during the first operation or the third operation. FIG. 16 is a schematic configuration diagram of the humidity control unit according to the modified example 10, and shows the humidity control unit during the second operation or the fourth operation. FIG. 17 is a schematic configuration diagram of the humidity control unit according to the modified example 11, and shows the humidity control unit during the first operation or the third operation. FIG. 18 is a schematic configuration diagram of the humidity control unit according to the modified example 11, and shows the humidity control unit during the third operation or the fourth operation. FIG. 19 is a schematic configuration diagram of the humidity control unit according to the modified example 12, and shows the humidity control unit during the first operation or the third operation. FIG. 20 is a schematic configuration diagram of the humidity control unit according to the modified example 12, and represents the humidity control unit during the second operation or the fourth operation. FIG. 21 is an enlarged schematic plan view of a part of the house provided with the humidity control unit according to the modified example 13. FIG. 22 is a schematic plan view of a house to which the humidity control system according to the modified example 14 is applied. FIG. 23 is a schematic plan view of a house to which the humidity control system according to the modified example 16 is applied. FIG. 24 is a schematic plan view of a house to which the humidity control system according to the modified example 19 is applied.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be noted that the following embodiments are essentially preferred examples and are not intended to limit the scope of the present invention, its applications, or its uses.

<< Embodiment >>
An embodiment is a humidity control system (S) that regulates the humidity of the target space. The humidity control system (S) also serves as a ventilation system that ventilates the target space.

<Overall configuration of humidity control system>
As shown in FIG. 1, the humidity control system (S) of the present embodiment is applied to a house. The humidity control system (S) has six humidity control units (10) and an interlocking control unit (C). The number of humidity control units (10) is not limited to this, but is preferably two or more. The interlocking control unit (C) controls these six humidity control units (10) in a coordinated manner.

The six humidity control units (10) in this example are classified into three first humidity control units (10A) and three second humidity control units (10B). The three first humidity control units (10A) basically perform the same operation. The three second humidity control units (10B) basically perform the same operation. The first humidity control unit (10A) and the second humidity control unit (10B) basically perform different operations.

<Overall configuration of humidity control unit>
As shown in FIG. 2, the humidity control unit (10) includes a casing (11). The casing (11) is attached to the wall (W) so as to penetrate the wall (W) of the house. The casing (11) is formed in a horizontally long tubular shape. The casing (11) may have a cylindrical shape or a square tubular shape. The casing (11) extends in a straight line perpendicular to the wall (W).

An air passage (12) is formed inside the casing (11). The air passage (12) communicates the first space (S1) and the second space (S2). The first space (S1) is a target space for humidity control and ventilation. The first space (S1) is an indoor space. The second space (S2) is a space different from the first space (S1). Specifically, the second space (S2) is an outdoor space.

The plurality of humidity control units (10) may be targeted at the same indoor space (S1) of the house, or may be targeted at different indoor spaces (S1).

The air passage (12) has an internal air opening (13) that opens into the first space (S1). The air passage (12) has an outside air port (14) that opens into the second space (S2). The center (axis center) of the inside air port (13) and the center (axis center) of the outside air port (14) substantially coincide with each other in the air flow direction. As a result, the flow path resistance of the air passage (12) can be reduced.

The humidity control unit (10) includes a first heat exchanger (21), a moisture absorption unit (30), a second heat exchanger (22), and a reversible fan (40). In the air passage (12), the first heat exchanger (21), the moisture absorption unit (30), the second heat exchanger (22), and the reversible fan (in order from the outdoor space (S2) to the indoor space (S1)). 40) is placed. The reversible fan (40) may be arranged closer to the outdoor space (S2) than the first heat exchanger (21).

The first heat exchanger (21) and the second heat exchanger (22) are included in the heat source device (20). The first heat exchanger (21) and the second heat exchanger (22) are heat sources for cooling and heating air. The first heat exchanger (21) and the second heat exchanger (22) are, for example, fin-and-tube heat exchangers.

The moisture absorption unit (30) is a moisture absorption unit that absorbs moisture from the air and releases moisture to the air. In other words, the moisture absorbing unit (30) performs an operation of removing moisture from the air and an operation of releasing moisture into the air. The moisture absorption unit (30) of the present embodiment is an adsorption unit having an adsorbent. The moisture absorption unit (30) includes a base material having a plurality of holes through which air flows, and an adsorbent supported on the surface of the base material. The adsorbent may be any material as long as it is a material that adsorbs or sorbs water.

The reversible fan (40) constitutes an air transport mechanism (M) that bidirectionally or reversibly transports air in the air passage (12) (details will be described later).

<Heat source device>
As shown in FIG. 2, the humidity control unit (10) includes a heat source device (20) for cooling and heating air. The heat source device (20) includes a first heat exchanger (21), a second heat exchanger (22), and an outdoor unit (20a). The outdoor unit (20a) includes a compressor (23), an outdoor heat exchanger (24), and an outdoor fan (25). The outdoor unit (20a), the first heat exchanger (21), and the second heat exchanger (22) are connected to each other via a refrigerant pipe. As a result, in the heat source device (20), a refrigerant circuit (R) through which the refrigerant circulates is configured. The compressor (23), the first heat exchanger (21), the second heat exchanger (22), and the outdoor heat exchanger (24) are connected to the refrigerant circuit (R). A four-way switching valve, an on-off valve, an expansion valve, etc., which are flow path switching mechanisms, are connected to the refrigerant circuit (R) (not shown). By controlling these devices, the refrigerant circulates in the refrigerant circuit (R) to perform a refrigeration cycle.

<Details of reversible fan>
The reversible fan (40) of the present embodiment is composed of an axial fan. The reversible fan (40) includes a motor (41), a shaft (42) that is rotationally driven by the motor (41), and an impeller (43) that is connected to the shaft (42). The motor (41) rotationally drives the shaft (42) in the forward rotation direction and the reverse rotation direction. The impeller (43) has substantially the same axial front view and rear view shapes.

When the motor (41) drives the drive shaft (42) in the forward rotation direction, the impeller (43) rotates in the first rotation direction (see FIG. 2). As a result, the outdoor air (OA) in the outdoor space (S2) is sucked into the air passage (12). The sucked outdoor air (OA) is supplied to the indoor space (S1) as supply air (SA). When the motor (41) drives the drive shaft (42) in the reverse rotation direction, the impeller (43) rotates in the second rotation direction (see FIG. 3). As a result, the indoor air (RA) in the indoor space (S1) is sucked into the air passage (12). The sucked indoor air (RA) is discharged to the outdoor space (S2) as exhaust air (EA).

<Interlocking control unit>
As shown in FIG. 1, the interlocking control unit (C) is a controller for controlling a plurality of humidity control units (10). The interlocking control unit (C) has a processor (for example, a microcontroller) and a memory device (for example, a semiconductor memory) for storing software for operating the processor. The interlocking control unit (C) of the present embodiment also serves as a control device for controlling the heat source device (20) and the air transfer mechanism (M) of each humidity control unit (10).

The interlocking control unit (C) is connected to each humidity control unit (10) via wired or wireless. Control signals and the like are exchanged between the interlocking control unit (C) and each humidity control unit (10). The interlocking control unit (C) controls the heat source device (20) and the reversible fan (40) for each of the humidity control units (10).

-Driving operation-
The operation operation of the humidity control system (S) will be described. The humidity control system (S) switches between dehumidifying operation and humidifying operation. The dehumidifying operation is performed under the condition that the outside air is hot and humid, for example, in summer. The humidification operation is performed under the condition that the outside air is low temperature and low humidity, for example, in winter.

<Dehumidifying operation>
In the dehumidifying operation, the first operation and the second operation are performed in each humidity control unit (10). The first operation and the second operation are alternately and repeatedly performed. The switching of these operations is controlled by the interlocking control unit (C).

<First operation>
In the first operation shown in FIG. 2, the moisture absorption unit (30) is cooled by the first heat exchanger (21), and air is transferred from the outdoor space (S2) to the indoor space (S1) by the reversible fan (40). It is an operation. In the heat source device (20), a refrigeration cycle in which the first heat exchanger (21) is used as an evaporator, the second heat exchanger (22) is stopped, and the outdoor heat exchanger (24) is used as a radiator (condenser). (First refrigeration cycle) is performed.

In the first operation, the outdoor air (OA) taken into the air passage (12) is cooled by the first heat exchanger (21). The cooled air flows through the moisture absorbing unit (30). In the moisture absorption unit (30), moisture in the air is adsorbed by the adsorbent. The air cooled and dehumidified in this way is supplied to the indoor space (S1) as supply air (SA).

<Second operation>
In the second operation shown in FIG. 3, the moisture absorption unit (30) is heated by the second heat exchanger (22), and air is transferred from the indoor space (S1) to the outdoor space (S2) by the reversible fan (40). It is an operation. Specifically, in the heat source device (20), the second heat exchanger (22) is used as a radiator (condenser), the first heat exchanger (21) is stopped, and the outdoor heat exchanger (24) is evaporated. The refrigeration cycle (second refrigeration cycle) used as a container is performed.

In the second operation, the indoor air (RA) taken into the air passage (12) is heated by the second heat exchanger (22). The heated air flows through the moisture absorbing unit (30). In the moisture absorption unit (30), the adsorbent is regenerated by air. The air used for the regeneration of the adsorbent is discharged to the outdoor space (S2) as exhaust air (EA).

<Interlocking control of dehumidifying operation>
The interlocking control of the dehumidifying operation will be described in detail with reference to FIGS. 4 and 5. In the dehumidifying operation, the first humidity control unit (10A) and the second humidity control unit (10B) are controlled in conjunction with each other. In the present embodiment, in each humidity control unit (10), the first operation, the first stop control, the second operation, and the second stop control are repeatedly performed in this order. The first operation is executed during T1, the second operation is executed during T2, the first stop control is executed during Tb1, and the second stop control is executed during Tb2. T1 and T2 are set to, for example, several tens of seconds, and Tb1 and Tb2 are set to, for example, several seconds. In this example, T1 and T2 are equal, and Tb1 and Tb2 are equal.

In this example, the first operation of the first humidity control unit (10A) and the second operation of the second humidity control unit (10B) are performed at the same time. The second operation of the first humidity control unit (10A) and the first operation of the second humidity control unit (10B) are performed at the same time. The first stop control of the first humidity control unit (10A) and the second stop control of the second humidity control unit (10B) are performed at the same time. The second stop control of the first humidity control unit (10A) and the first stop control of the second humidity control unit (10B) are performed at the same time.

As shown in FIGS. 4 and 5 (A), when the three first humidity control units (10A) execute the first operation in the dehumidification operation, the remaining three second humidity control units (10B) move. Execute the second operation. Each first humidity control unit (10A) supplies the air dehumidified by the moisture absorption unit (30) to the indoor space (S1). Each second humidity control unit (10B) discharges the air used for regenerating the adsorbent of the moisture absorption unit (30) to the outdoor space (S2). As a result, ventilation of the indoor space (S1) and dehumidification of the indoor space (S1) are performed at the same time.

When the first operation of the first humidity control unit (10A) is completed, the first stop control of the first humidity control unit (10A) is performed. In the first stop control of the first humidity control unit (10A), the reversible fan (40) of the first humidity control unit (10A) is stopped. When the second operation of the second humidity control unit (10B) is completed, the second stop control of the second humidity control unit (10B) is performed. In the second stop control of the second humidity control unit (10B), the reversible fan (40) of the second humidity control unit (10B) is stopped.

As shown in FIGS. 4 and 5 (B), when the three second humidity control units (10B) execute the first operation in the dehumidification operation, the remaining three first humidity control units (10A) move. Execute the second operation. Each second humidity control unit (10B) supplies the air dehumidified by the moisture absorption unit (30) to the indoor space (S1). Each first humidity control unit (10A) discharges the air used for regenerating the adsorbent of the moisture absorption unit (30) to the outdoor space (S2). As a result, ventilation of the indoor space (S1) and dehumidification of the indoor space (S1) are performed at the same time.

When the first operation of the second humidity control unit (10B) is completed, the first stop control of the second humidity control unit (10B) is performed. In the first stop control of the second humidity control unit (10B), the reversible fan (40) of the second humidity control unit (10B) is stopped. When the second operation of the first humidity control unit (10A) is completed, the second stop control of the first humidity control unit (10A) is performed. In the second stop control of the first humidity control unit (10A), the reversible fan (40) of the first humidity control unit (10A) is stopped.

As described above, in the humidity control system (S), in the first humidity control unit (10A) and the second humidity control unit (10B), the first operation and the second operation are alternately performed so as to be deviated from each other. As a result, ventilation and dehumidification of the indoor space (S1) can be continuously performed.

In the dehumidifying operation, the reversible fan (40) is stopped in the first stop control between the first operation and the second operation. If the second operation is executed immediately after the first operation in each humidity control unit (10), the low humidity air supplied to the indoor space (S1) in the first operation is released to the outdoor space (S2) by the second operation. ) May be discharged. On the other hand, by stopping the reversible fan (40) between the first operation and the second operation, the low humidity air supplied to the indoor space (S1) by the first operation is diffused in the indoor space (S1). Can be made to. As a result, it is possible to prevent the low-humidity air supplied to the indoor space (S1) by the first operation from being discharged to the outdoor space (S2) by the second operation.

Similarly, in the dehumidifying operation, the reversible fan (40) is stopped in the second stop control between the second operation and the first operation. If the first operation is executed immediately after the second operation in each humidity control unit (10), the high humidity air discharged to the outdoor space (S2) in the second operation is discharged to the indoor space (S2) by the first operation. There is a possibility that it will be supplied to S1). On the other hand, by stopping the reversible fan (40) between the second operation and the first operation, the high humidity air discharged to the outdoor space (S2) by the second operation is discharged in the outdoor space (S2). It can be diffused. As a result, it is possible to prevent the high-humidity air discharged to the outdoor space (S2) by the second operation from being supplied to the indoor space (S1) by the first operation.

The compressor (23) may be stopped in the first stop control and the second stop control.

<Humidification operation>
In the humidification operation, the third operation and the fourth operation are performed in each humidity control unit (10). The third operation and the fourth operation are alternately and repeatedly performed. The switching of these operations is controlled by the interlocking control unit (C).

<Third operation>
In the third operation shown in FIG. 2, the moisture absorption unit (30) is heated by the first heat exchanger (21), and air is transferred from the outdoor space (S2) to the indoor space (S1) by the reversible fan (40). It is an operation. In the heat source device (20), a refrigeration cycle in which the first heat exchanger (21) is used as a radiator (condenser), the second heat exchanger (22) is stopped, and the outdoor heat exchanger (24) is used as an evaporator. (Third refrigeration cycle) is performed.

In the third operation, the outdoor air (OA) taken into the air passage (12) is heated by the first heat exchanger (21). The heated air flows through the moisture absorbing unit (30). In the moisture absorption unit (30), the moisture of the adsorbent is released into the air. The air heated and humidified in this way is supplied to the indoor space (S1) as supply air (SA).

<Fourth operation>
In the fourth operation shown in FIG. 3, the moisture absorption unit (30) is cooled by the second heat exchanger (22), and air is transferred from the indoor space (S1) to the outdoor space (S2) by the reversible fan (40). It is an operation. Specifically, in the heat source device (20), the second heat exchanger (22) is used as an evaporator, the first heat exchanger (21) is stopped, and the outdoor heat exchanger (24) is used as a radiator (condenser). ) Is performed as the refrigeration cycle (fourth refrigeration cycle).

In the fourth operation, the indoor air (RA) taken into the air passage (12) is cooled by the second heat exchanger (22). The cooled air flows through the moisture absorbing unit (30). In the moisture absorption unit (30), moisture in the air is adsorbed by the adsorbent. The air in which moisture is added to the adsorbent is discharged to the outdoor space (S2) as exhaust air (EA).

<Interlocking control of humidification operation>
The interlocking control of the humidification operation will be described in detail with reference to FIGS. 5 and 6. In the humidification operation, the first humidity control unit (10A) and the second humidity control unit (10B) are controlled in conjunction with each other. In the present embodiment, in each humidity control unit (10), the third operation, the third stop control, the fourth operation, and the fourth stop control are repeatedly performed in this order. The third operation is executed during T3, the fourth operation is executed during T4, the third stop control is executed during Tb3, and the fourth stop control is executed during Tb4. The third operation is executed during T3, the fourth operation is executed during T4, the third stop control is executed during Tb3, and the fourth stop control is executed during Tb4. T3 and T4 are set to, for example, several tens of seconds, and Tb3 and Tb4 are set to, for example, several seconds. In this example, T3 and T4 are equal, and Tb3 and Tb4 are equal.

In this example, the third operation of the first humidity control unit (10A) and the fourth operation of the second humidity control unit (10B) are performed at the same time. The fourth operation of the first humidity control unit (10A) and the third operation of the second humidity control unit (10B) are performed at the same time. The third stop control of the first humidity control unit (10A) and the fourth stop control of the second humidity control unit (10B) are performed at the same time. The fourth stop control of the first humidity control unit (10A) and the third stop control of the second humidity control unit (10B) are performed at the same time.

As shown in FIGS. 5A and 6, when the three first humidity control units (10A) execute the third operation in the humidification operation, the remaining three second humidity control units (10B) move. The fourth operation is executed. Each first humidity control unit (10A) supplies the air humidified by the moisture absorption unit (30) to the indoor space (S1). Each second humidity control unit (10B) discharges the air obtained by adding moisture to the adsorbent of the moisture absorption unit (30) to the outdoor space (S2). As a result, ventilation of the indoor space (S1) and humidification of the indoor space (S1) are performed at the same time.

When the third operation of the first humidity control unit (10A) is completed, the third stop control of the first humidity control unit (10A) is performed. In the third stop control of the first humidity control unit (10A), the reversible fan (40) of the first humidity control unit (10A) is stopped. When the third operation of the second humidity control unit (10B) is completed, the fourth stop control of the second humidity control unit (10B) is performed. In the fourth stop control of the second humidity control unit (10B), the reversible fan (40) of the second humidity control unit (10B) is stopped.

As shown in FIGS. 5B and 6, when the three second humidity control units (10B) execute the third operation in the humidification operation, the remaining three first humidity control units (10A) move. The fourth operation is executed. Each second humidity control unit (10B) supplies the air humidified by the moisture absorption unit (30) to the indoor space (S1). Each first humidity control unit (10A) discharges air in which moisture is added to the adsorbent of the moisture absorption unit (30) to the outdoor space (S2). As a result, ventilation of the indoor space (S1) and humidification of the indoor space (S1) are performed at the same time.

When the third operation of the second humidity control unit (10B) is completed, the third stop control of the second humidity control unit (10B) is performed. In the third stop control of the second humidity control unit (10B), the reversible fan (40) of the second humidity control unit (10B) is stopped. When the fourth operation of the first humidity control unit (10A) is completed, the fourth stop control of the first humidity control unit (10A) is performed. In the fourth stop control of the first humidity control unit (10A), the reversible fan (40) of the first humidity control unit (10A) is stopped.

As described above, in the humidity control system (S), in the first humidity control unit (10A) and the second humidity control unit (10B), the third operation and the fourth operation are alternately performed so as to be deviated from each other. As a result, ventilation and humidification of the indoor space (S1) can be continuously performed.

In the humidification operation, the reversible fan (40) is stopped in the third stop control between the third operation and the fourth operation. If the fourth operation is executed immediately after the third operation in each humidity control unit (10), the high-humidity air supplied to the indoor space (S1) in the third operation is transferred to the outdoor space (S1) by the fourth operation. It may be discharged to S2). On the other hand, by stopping the reversible fan between the third operation and the fourth operation, the high humidity air supplied to the indoor space (S1) by the third operation is diffused in the indoor space (S1). Can be done. As a result, it is possible to prevent the high-humidity air supplied to the indoor space (S1) by the third operation from being discharged to the outdoor space (S2) by the fourth operation.

Similarly, in the humidification operation, the reversible fan (40) is stopped in the fourth stop control between the fourth operation and the third operation. If the third operation is executed immediately after the fourth operation in each humidity control unit (10), the low humidity air discharged to the outdoor space (S2) in the fourth operation is discharged to the indoor space (S1) by the third operation. ) May be supplied. On the other hand, by stopping the reversible fan (40) between the 4th operation and the 3rd operation, the low humidity air discharged to the outdoor space (S2) by the 4th operation is diffused in the outdoor space (S2). Can be made to. As a result, it is possible to prevent the low-humidity air discharged to the outdoor space (S2) by the fourth operation from being supplied to the indoor space (S1) by the third operation.

The compressor (23) may be stopped in the third stop control and the fourth stop control.

-Effect of embodiment-
The above embodiment is arranged in an air passage (12) and the air passage (12) that communicate the first space (S1) and the second space (S2), which are the target spaces, and absorbs moisture from the air and air. A heat source (21,22,32) arranged in the air passage (12) and performing at least one of cooling and heating of the moisture absorbing portion (30,32) and a moisture absorbing portion (30,32) for releasing moisture to the air passage (12). ), An air transport mechanism (M) that reversibly conveys the air flow direction in the air passage (12), and the heat source (21,22,32) and the air transport mechanism (M) are controlled. It is equipped with a control device (C).

In this configuration, the air transfer mechanism (M) can switch the air flow in the air passage (12) in both directions. Therefore, it is not necessary to separately form the air passage for air supply and the air passage for exhaust, and the humidity control unit (10) can be miniaturized and simplified.

The control device (C) cools the moisture absorbing portion (30,32) by the heat source (21,22,32) and airs the air in the second space (S2) by the air transport mechanism (M). In the first operation of transporting to the space (S1), the moisture absorbing portion (30,32) is heated by the heat source (21,22,32) and the air transport mechanism (M) of the first space (S1). The second operation of transporting air to the second space (S2) is alternately executed.

In this configuration, in the first operation of the dehumidifying operation, the outdoor air (OA) can be dehumidified by the moisture absorbing portions (30, 32) and supplied to the indoor space (S1) which is the first space. In the second operation of the dehumidifying operation, the moisture of the moisture absorbing portion (30, 32) can be discharged to the indoor air (RA) and discharged to the outdoor space (S2) which is the second space. By alternately repeating the first operation and the second operation, the indoor space (S1) can be dehumidified intermittently. In addition, the indoor space (S1) can be ventilated.

The control device (C) stops the air transport mechanism (M) for a predetermined period after the end of the first operation and before the start of the second operation.

In this configuration, it is possible to prevent the low-humidity air supplied to the indoor space (S1) from being discharged to the outdoor space (S2) by the second operation by the first operation of the dehumidifying operation. Therefore, it is possible to suppress a decrease in the dehumidifying capacity of the humidity control unit (10).

The control device (C) stops the air transport mechanism (M) for a predetermined period after the end of the second operation and before the start of the first operation.

In this configuration, it is possible to prevent the high-humidity air discharged to the outdoor space (S2) from being returned to the indoor space (S1) side by the first operation by the second operation of the dehumidifying operation. Therefore, it is possible to suppress a decrease in the dehumidifying capacity of the humidity control unit (10).

The control device (C) heats the moisture absorbing portion (30,32) by the heat source (21,22,32) and heats the air in the second space (S2) by the air transport mechanism (M). The third operation of transporting to the space (S1), the heat source (21,22,32) cools the moisture absorbing portion (30,32), and the air transport mechanism (M) cools the air in the first space (S1). Is alternately executed with the fourth operation of transporting the air to the second space (S2).

In this configuration, in the third operation of the humidification operation, the outdoor air (OA) can be humidified by the moisture absorbing portions (30, 32) and supplied to the indoor space (S1) which is the first space. In the fourth operation of the humidification operation, the moisture of the indoor air can be applied to the moisture absorbing portions (30, 32), and this air can be discharged to the outdoor space (S2). By alternately repeating the third operation and the fourth operation, the indoor space (S1) can be dehumidified intermittently. In addition, the indoor space (S1) can be ventilated.

The control device (C) stops the air transport mechanism (M) for a predetermined period after the end of the third operation and before the start of the fourth operation.

In this configuration, it is possible to prevent the highly humid air supplied to the indoor space (S1) from being discharged to the outdoor space (S2) by the fourth operation by the third operation of the humidification operation. Therefore, it is possible to suppress a decrease in the humidifying capacity of the humidity control unit (10).

The control device (C) stops the air transport mechanism (M) for a predetermined period after the end of the fourth operation and before the start of the third operation.

In this configuration, it is possible to prevent the low-humidity air discharged to the outdoor space (S2) from being returned to the indoor space (S1) side by the third operation by the fourth operation of the humidification operation. Therefore, it is possible to suppress a decrease in the humidifying capacity of the humidity control unit (10).

The first space (S1) is an indoor space, and the second space (S2) is an outdoor space.

In this configuration, the indoor space (S1) can be ventilated by the exchange of air between the indoor space (S1) and the outdoor space (S2).

The heat source (21,22,32) includes a heat exchange section (21,22,32) through which a heat medium flows. The heat exchange section is arranged closer to the first space (S1) than the moisture absorbing section (30), and is located on the first heat exchanger (21) for cooling and heating air, and the moisture absorbing section (30). It is arranged on the second space (S2) side and includes a second heat exchanger (22) that cools and heats air.

In this configuration, in the first operation of the dehumidification operation, the air on the upstream side of the moisture absorption unit (30) can be cooled by the first heat exchanger (21). In the second operation of the dehumidifying operation, the air on the upstream side of the moisture absorbing unit (30) can be heated by the second heat exchanger (22). In the third operation of the humidification operation, the air on the upstream side of the moisture absorption unit (30) can be heated by the first heat exchanger (21). In the fourth operation of the humidification operation, the air on the upstream side of the moisture absorption unit (30) can be cooled by the second heat exchanger (22).

The center of the opening (13) on the first space (S1) side of the air passage (12) and the center of the opening (14) on the second space (S2) side of the air passage (12) are the center of the air passage (12). The air flow directions in 12) are almost the same.

In this configuration, since the inside air port (13) and the outside air port (14) coincide with each other in the axial direction, the flow path resistance of the air passage (12) can be reduced. Therefore, the power of the reversible fan (40) can be reduced.

The air passage (12) is provided so as to penetrate the wall (W) that separates the first space (S1) and the second space (S2).

In this configuration, the humidity control unit (10) can be easily installed as compared with the case where the humidity control unit (10) is provided in the ceiling or the like.

The humidity control system (S) includes a plurality of humidity control units (10). The interlocking control unit (C) cooperatively controls a plurality of humidity control units (10).

In this configuration, a plurality of humidity control units (10) can perform dehumidification, humidification, and ventilation according to the target space.

The plurality of humidity control units (10) include at least one first humidity control unit (10A) and at least one second humidity control unit (10B), and the first humidity control unit (10A) and the first humidity control unit (10A). The two humidity control unit (10B) cools the moisture absorbing portion (30,32) by the heat source (21,22,32) and air in the second space (S2) by the air transport mechanism (M). In the first operation of transporting to one space (S1), the moisture absorbing portion (30,32) is heated by the heat source (21,22,32) and the first space (S1) is heated by the air transport mechanism (M). In the interlocking control unit (C), the first humidity control unit (10A) performs the first operation in an interlocking control unit (C) so as to alternately execute the second operation of transporting the air to the second space (S2). When the second humidity control unit (10B) performs the second operation, and when the first humidity control unit (10A) performs the second operation, the second humidity control unit (10B) performs the second operation. The first humidity control unit (10A) and the second humidity control unit (10B) are controlled so as to perform the first operation.

In this configuration, the indoor space (S1) can be substantially continuously dehumidified. In addition, the indoor space (S1) can be ventilated by type 1 ventilation.

The first humidity control unit (10A) and the second humidity control unit (10B) heat the moisture absorbing portion (30,32) by the heat source (21,22,32) and by the air transport mechanism (M). The third operation of transporting the air in the second space (S2) to the first space (S1) and the heat source (21,22,32) cool the moisture absorbing portion (30,32) and the air transport mechanism. (M) is configured to alternately execute the fourth operation of transporting the air in the first space (S1) to the second space (S2), and the interlocking control unit (C) is in the first adjustment. The second humidity control unit (10B) performs the fourth operation when the humidity unit (10A) performs the third operation, and the first humidity control unit (10A) performs the fourth operation. The first humidity control unit (10A) and the second humidity control unit (10B) are controlled so that the second humidity control unit (10B) performs the third operation.

In this configuration, the indoor space (S1) can be substantially continuously humidified. In addition, the indoor space (S1) can be ventilated by type 1 ventilation.

<< Modified example of the embodiment >>
The above embodiment may be configured as a modified example as follows.

<Modification example 1 (Modification example of interlocking control)>
In the humidity control system (S) of the first modification, the control of each humidity control unit (10) by the interlocking control unit (C) of the above embodiment is different.

In the dehumidifying operation of the modified example shown in FIG. 7, the timing of the first operation of the first humidity control unit (10A) and the second operation of the second humidity control unit (10B) are different, and the first humidity control unit (10B) is dehumidified. The timing of the second operation of 10A) and the first operation of the second humidity control unit (10B) are different. In the first humidity control unit (10A) and the second humidity control unit (10B), stop control is performed to stop the air transport mechanism (M) for a predetermined period between the first operation and the second operation. In the first modification, the other humidity control unit (10) is the first while the stop control of one of the first humidity control unit (10A) and the second humidity control unit (10B) is being stopped. Perform an operation or a second operation.

Specifically, for example, in the first humidity control unit (10A), the first stop control is performed after the first operation. During the first stop control of the first humidity control unit (10A), the second operation of the second humidity control unit (10B) is continuously executed. Therefore, the second humidity control unit (10B) can exhaust the air while the air transport mechanism (M) of the first humidity control unit (10A) is stopped. In other words, the third type ventilation can be performed during the stop control of the first humidity control unit (10A).

Next, in the second humidity control unit (10B), the second stop control is performed after the second operation. During the second stop control of the second humidity control unit (10B), the second operation of the first humidity control unit (10A) is executed. Therefore, the first humidity control unit (10A) can exhaust the air while the air transport mechanism (M) of the second humidity control unit (10B) is stopped. In other words, the third type ventilation can be performed during the stop control of the second humidity control unit (10B).

Next, in the first humidity control unit (10A), the second stop control is performed after the second operation. During the second stop control of the first humidity control unit (10A), the first operation of the second humidity control unit (10B) is continuously executed. Therefore, air can be supplied by the second humidity control unit (10B) while the air transport mechanism (M) of the first humidity control unit (10A) is stopped. In other words, the second type ventilation can be performed during the stop control of the first humidity control unit (10A).

Next, in the second humidity control unit (10B), the first stop control is performed after the first operation. During the first stop control of the second humidity control unit (10B), the first operation of the first humidity control unit (10A) is executed. Therefore, air can be supplied by the first humidity control unit (10A) while the air transport mechanism (M) of the second humidity control unit (10B) is stopped. In other words, the second type ventilation can be performed during the stop control of the second humidity control unit (10B).

As described above, in the first modification, the first humidity control unit (10A) and the second humidity control unit (10B) do not perform stop control at the same time. During the stop control of one humidity control unit (10), the other humidity control unit (10) performs the first operation or the second operation. Therefore, at the time of the dehumidifying operation of the humidity control system (S), any one of the first-class ventilation, the second-class ventilation, and the third-class ventilation can always be executed.

In the humidification operation of the first modification shown in FIG. 8, the timing of the third operation of the first humidity control unit (10A) and the fourth operation of the second humidity control unit (10B) are different, and the first humidity control unit The timing of the fourth operation of (10A) and the third operation of the second humidity control unit (10B) are different. In the first humidity control unit (10A) and the second humidity control unit (10B), stop control is performed to stop the air transport mechanism (M) for a predetermined period between the third operation and the fourth operation. In the first modification, while one of the first humidity control unit (10A) and the second humidity control unit (10B) is stopped and controlled, the other humidity control unit (10) is the third. Perform an operation or a fourth operation.

Specifically, for example, in the first humidity control unit (10A), the third stop control is performed after the third operation. During the third stop control of the first humidity control unit (10A), the fourth operation of the second humidity control unit (10B) is continuously executed. Therefore, the second humidity control unit (10B) can exhaust the air while the air transport mechanism (M) of the first humidity control unit (10A) is stopped. In other words, the third type ventilation can be performed during the stop control of the first humidity control unit (10A).

Next, in the second humidity control unit (10B), the fourth stop control is performed after the fourth operation. During the fourth stop control of the second humidity control unit (10B), the fourth operation of the first humidity control unit (10A) is executed. Therefore, the first humidity control unit (10A) can exhaust the air while the air transport mechanism (M) of the second humidity control unit (10B) is stopped. In other words, the third type ventilation can be performed during the stop control of the second humidity control unit (10B).

Next, in the first humidity control unit (10A), the fourth stop control is performed after the fourth operation. During the fourth stop control of the first humidity control unit (10A), the third operation of the second humidity control unit (10B) is continuously executed. Therefore, air can be supplied by the second humidity control unit (10B) while the air transport mechanism (M) of the first humidity control unit (10A) is stopped. In other words, the second type ventilation can be performed during the stop control of the first humidity control unit (10A).

Next, in the second humidity control unit (10B), the third stop control is performed after the third operation. During the third stop control of the second humidity control unit (10B), the third operation of the first humidity control unit (10A) is executed. Therefore, air can be supplied by the first humidity control unit (10A) while the air transport mechanism (M) of the second humidity control unit (10B) is stopped. In other words, the second type ventilation can be performed during the stop control of the second humidity control unit (10B).

As described above, in the first modification, the first humidity control unit (10A) and the second humidity control unit (10B) do not perform stop control at the same time. During the stop control of one humidity control unit (10), the other humidity control unit (10) performs a third operation or a fourth operation. Therefore, during the humidifying operation of the humidity control system (S), any one of the first-class ventilation, the second-class ventilation, and the third-class ventilation can always be executed.

<Modification 2 (Modification of heat source device (1)>>
The heat source device (20) of the above embodiment has an outdoor heat exchanger (24) and an outdoor fan (25), and the outdoor heat exchanger (24) exchanges heat between air and a refrigerant. However, instead of the outdoor heat exchanger (24), an internal heat exchanger that exchanges heat between water, brine, or the refrigerant may be adopted. As the internal heat exchanger, a double tube type or shell and tube type heat exchanger can be adopted.

<Modification example 3 (Modification example (2) of heat source device>
As shown in FIG. 9, the heat source device (20) may be configured to directly supply water, brine, or the like to the first heat exchanger (21) and the second heat exchanger (22).

The heat source device (20) of the third modification includes a first heat medium circuit (50) and a second heat medium circuit (60). A first pump (51), a first heat exchanger (21), and a first heat source heat exchanger (52) are connected to the first heat medium circuit (50) in this order. A second pump (61), a second heat exchanger (22), and a second heat source heat exchanger (62) are connected to the second heat medium circuit (60) in this order.

The first pump (51) circulates the heat medium (for example, water) of the first heat medium circuit (50). The first heat source heat exchanger (52) is a heat medium (eg, water) of the heat medium of the first heat medium circuit (50) and the corresponding secondary flow path (first secondary flow path (52a)). And heat exchange. The second pump (61) circulates the heat medium (eg, water) of the second heat medium circuit (60). The second heat source heat exchanger (62) is a heat medium (for example, water) of the heat medium of the second heat medium circuit (60) and the corresponding secondary flow path (second secondary flow path (62a)). And heat exchange. Cold water or hot water is supplied to the first secondary side flow path (52a) and the second secondary side flow path (62a) in conjunction with the operation of the humidity control unit (10).

Specifically, in the dehumidifying operation, the first pump (51) is operated in the humidity control unit (10) during the first operation, and the first secondary side flow path (52) of the first heat source heat exchanger (52) is operated. Cold water is supplied to 52a). In the first heat source heat exchanger (52), the water in the first heat medium circuit (50) is cooled, and the cooled water is supplied to the first heat exchanger (21). As a result, the air can be cooled by the first heat exchanger (21). In the dehumidifying operation, the second pump (61) is operated in the humidity control unit (10) during the second operation, and hot water is supplied to the second secondary side flow path (62a) of the second heat source heat exchanger (62). Be supplied. In the second heat source heat exchanger (62), the water in the second heat medium circuit (60) is heated, and the heated water is supplied to the second heat exchanger (22). As a result, the air can be heated by the second heat exchanger (22).

In the humidification operation, in the humidity control unit (10) during the third operation, the first pump (51) is operated, and hot water is sent to the first secondary side flow path (52a) of the first heat source heat exchanger (52). Be supplied. In the first heat source heat exchanger (52), the water in the first heat medium circuit (50) is heated, and the heated water is supplied to the first heat exchanger (21). As a result, the air can be heated by the first heat exchanger (21). In the humidification operation, in the humidity control unit (10) during the second operation, the second pump (61) is operated, and cold water flows into the second secondary side flow path (62a) of the second heat source heat exchanger (62). Be supplied. In the second heat source heat exchanger (62), the water in the second heat medium circuit (60) is cooled, and the cooled water is supplied to the second heat exchanger (22). As a result, the air can be heated by the second heat exchanger (22).

The cold water and hot water of the primary secondary channel (52a) and the secondary secondary channel (62a) may be supplied from a heat supply facility shared in a predetermined range of areas. Hot water may be generated, for example, by utilizing the heat in the ground. Cold water and hot water may be generated by a heat pump type chiller unit.

<Modification example 4 (Modification example (3) of heat source device>
The means for heating or cooling the moisture absorbing unit (30) may have a configuration other than the above. For example, an electric heater may be used as a means for heating the moisture absorbing unit (30). A Peltier element may be used as a means for cooling and heating the moisture absorption unit (30). The heat source device (20) may perform at least one of cooling and heating of air by using, for example, a magnetic cooling type heat pump or an adsorption type heat pump.

<Modification 5 (Modification of moisture absorbing part (1))>
In the humidity control unit (10) of the modified example 5 shown in FIG. 10, the moisture absorption unit (30) and the heat exchangers (21, 22) of the above-described embodiment are used in combination. The heat exchanger (21,22) or the moisture absorption unit (30) is composed of an adsorption heat exchanger (32) in which an adsorbent is supported on the surface of the heat exchanger. The adsorbent is supported, for example, on the surface of the fins of the heat exchanger. The adsorbent is composed of a material that adsorbs water.

The adsorption heat exchanger (32) is connected to the refrigerant circuit (R) of the heat source device (20) as in the above embodiment. In the refrigerant circuit (R), the refrigeration cycle (fifth refrigeration cycle) in which the outdoor heat exchanger (24) is used as a radiator and the adsorption heat exchanger (32) is used as an evaporator, and the adsorption heat exchanger (32) are dissipated. The refrigeration cycle (sixth refrigeration cycle) in which the outdoor heat exchanger (24) is used as an evaporator is switched to the vessel.

In the first operation of the dehumidifying operation, the adsorption heat exchanger (32) becomes an evaporator. The outdoor air (OA) taken into the air passage (12) by the air transport mechanism (M) passes through the adsorption heat exchanger (32). In the adsorption heat exchanger (32), the moisture in the air is adsorbed by the adsorbent. The heat of adsorption generated at this time is used as the heat of vaporization of the refrigerant. The air cooled and dehumidified by the adsorption heat exchanger (32) is supplied to the indoor space (S1) as supply air (SA).

In the second operation of the dehumidifying operation, the adsorption heat exchanger (32) serves as a radiator. The indoor air (RA) taken into the air passage (12) by the air transport mechanism (M) passes through the adsorption heat exchanger (32). In the adsorption heat exchanger (32), the moisture of the adsorbent is released into the air. The air used for the regeneration of the adsorbent is discharged to the outdoor space (S2) as exhaust air (EA).

In the third operation of the humidification operation, the adsorption heat exchanger (32) serves as a radiator. The outdoor air (OA) taken into the air passage (12) by the air transport mechanism (M) passes through the adsorption heat exchanger (32). In the adsorption heat exchanger (32), the moisture of the adsorbent is released into the air. The air heated and humidified by the adsorption heat exchanger (32) is supplied to the indoor space (S1) as supply air (SA).

In the fourth operation of the humidification operation, the adsorption heat exchanger (32) becomes an evaporator. The indoor air (RA) taken into the air passage (12) by the air transport mechanism (M) passes through the adsorption heat exchanger (32). In the adsorption heat exchanger (32), the moisture in the air is adsorbed by the adsorbent. The air in which moisture is added to the adsorbent is discharged to the outdoor space (S2) as exhaust air (EA).

<Modification 6 (Modification of moisture absorbing part (2))>
As shown in FIG. 11, the moisture absorbing unit (30) of the modified example 6 is formed in a substantially columnar shape. The moisture absorption unit (30) has a columnar base material (33) having a plurality of small holes and an adsorbent supported on the base material (33). The moisture absorbing unit (30) is arranged in the air passage (12) so that its axial direction coincides with the direction of the air flow. The moisture absorption unit (30) is arranged between the first heat exchanger (21) and the second heat exchanger (22) as in the above embodiment.

<Modification 7 (Modification of moisture absorbing part (3))>
As shown in FIG. 12, the moisture absorbing unit (30) of the modified example 7 is formed in a substantially rectangular parallelepiped shape. The moisture absorbing unit (30) has a rectangular parallelepiped base material (33) having a plurality of small holes and an adsorbent supported on the base material (33). The moisture absorption unit (30) is arranged between the first heat exchanger (21) and the second heat exchanger (22) as in the above embodiment.

<Modification 8 (Modification of moisture absorbing part (4))>
As shown in FIG. 13, the moisture absorbing unit (30) of the modified example 8 has a mesh-shaped container (34) and a granular adsorbent (35) filled inside the container (34). The mesh container (34) is arranged in the air passage (12). The air in the air passage (12) passes through the mesh container (34) and flows around the adsorbent (35). The moisture absorption unit (30) is arranged between the first heat exchanger (21) and the second heat exchanger (22) as in the above embodiment.

<Modification 9 (Modification of moisture absorbing part (5))>
As shown in FIG. 14, the moisture absorbing unit (30) of the modified example 9 has a storage tank (36). A liquid absorbent is stored inside the storage tank (36). The liquid absorbent is, for example, an aqueous solution of lithium chloride. The moisture absorption unit (30) has a plurality of air flow pipes (37). The air flow pipe (37) penetrates the storage tank (36) in the air flow direction of the air passage (12). The air flow pipe (37) is composed of a tubular moisture permeable membrane. The moisture permeable membrane is a membrane that does not allow the liquid absorbent to permeate but allows water vapor to permeate. The moisture absorption unit (30) is arranged between the first heat exchanger (21) and the second heat exchanger (22) as in the above embodiment.

In the first operation of the dehumidifying operation, the air cooled by the first heat exchanger (21) flows through the plurality of air flow pipes (37). Moisture in the air is absorbed by the liquid absorbent through the permeable membrane. In the second operation of the dehumidifying operation, the air heated by the second heat exchanger (22) flows through the plurality of air flow pipes (37). In the air flow pipe (37), the water vapor of the liquid absorbent is applied to the air through the permeable membrane.

In the third operation of the humidification operation, the air heated by the first heat exchanger (21) flows through the plurality of air flow pipes (37). In the air flow pipe (37), the water vapor of the liquid absorber imparts a permeable membrane to the air. In the fourth operation of the humidification operation, the air cooled by the second heat exchanger (22) flows through the plurality of air flow pipes (37). Moisture in the air is absorbed by the liquid absorbent through the permeable membrane.

<Modification example 10 (Modification example (1) of air transport mechanism>
As shown in FIGS. 15 and 16, the humidity control unit (10) of the modified example 10 has a different configuration of the air transport mechanism (M) from the above embodiment. The air transport mechanism (M) of the modified example 10 includes a first fan (44) and a second fan (45). The first fan (44) and the second fan (45) carry air in only one direction. The first fan (44) carries air only toward the indoor space (S1). The second fan (45) conveys air only toward the outdoor space (S2).

As shown in FIG. 15, in the first operation of the dehumidifying operation, the first fan (44) is operated and the second fan (45) is stopped. As a result, the outdoor air (OA) in the outdoor space (S2) can be supplied to the indoor space (S1) as the supply air (SA). As shown in FIG. 16, in the second operation of the dehumidifying operation, the second fan (45) is operated and the first fan (44) is stopped. As a result, the indoor air (RA) in the indoor space (S1) can be discharged to the outdoor space (S2) as exhaust air (EA).

As shown in FIG. 15, in the third operation of the humidification operation, the first fan (44) is operated and the second fan (45) is stopped. As a result, the outdoor air (OA) in the outdoor space (S2) can be supplied to the indoor space (S1) as the supply air (SA). As shown in FIG. 16, in the fourth operation of the humidification operation, the second fan (45) is operated and the first fan (44) is stopped. As a result, the indoor air (RA) in the indoor space (S1) can be discharged to the outdoor space (S2) as exhaust air (EA).

<Modification example 11 (Modification example (2) of air transport mechanism>
As shown in FIGS. 17 and 18, the humidity control unit (10) of the modified example 11 has a different configuration of the air transport mechanism (M) from the above embodiment. The air transport mechanism (M) of the modified example 11 includes a one-way fan (46). The one-way fan (46) carries air in only one direction. In addition, the air transport mechanism (M) has a first damper (D1), a second damper (D2), and a third damper (D3). These dampers (D1, D2, D3) form a flow path switching mechanism. The flow path switching mechanism switches the air passage (12) between the first state and the second state. In the air passage (12) in the first state shown in FIG. 17, the air conveyed to the one-way fan (46) flows from the outdoor space (S2) to the indoor space (S1). In the second state air passage (12) shown in FIG. 18, the air conveyed to the one-way fan (46) flows from the indoor space (S1) to the outdoor space (S2).

The air passage (12) of the humidity control unit (10) includes a first passage (P1), a second passage (P2), a third passage (P3), and a fourth passage (P4). A first heat exchanger (21), a moisture absorbing unit (30), and a second heat exchanger (22) are arranged in this order in the first passage (P1). The first passage (P1) can communicate with the outside air port (14), the inside air port (13), the second passage (P2), and the fourth passage (P4). The second passage (P2) can communicate with the first passage (P1) and the third passage (P3). A first fan (44) is arranged in the third passage (P3). The third passage (P3) can at least communicate with the outside air port (14), the first passage (P1), and the fourth passage (P4). The fourth passage (P4) can at least communicate with the inside air port (13), the first passage (P1), and the third passage (P3).

The first damper (D1) has a first state of blocking the inside air port (13) and the first passage (P1) and a second state of communicating the inside air port (13) and the first passage (P1). Can be switched. The second damper (D2) is the first state in which the fourth passage (P4) and the third passage (P3) are communicated with each other and the outside air port (14) and the third passage (P3) are blocked, and the fourth passage (P3). It is switched to the second state in which the P4) and the third passage (P3) are blocked and the third passage (P3) and the outside air port (14) are communicated with each other. The third damper (D3) has a first state of blocking the second passage (P2) and the outside air port (14) and a second state of communicating the first passage (P1) and the second passage (P2). Can be switched.

As shown in FIG. 17, in the first operation of the dehumidifying operation, the one-way fan (46) is operated, and the air passage (12) is switched to the first state by the flow path switching mechanism. Specifically, the first damper (D1), the second damper (D2), and the third damper (D3) are in the first state. The outdoor air (OA) flows through the first passage (P1) and is cooled and dehumidified by the first heat exchanger (21). This air flows through the third passage (P3) and the fourth passage (P4) in this order, and is supplied to the indoor space (S1) as supply air (SA). As shown in FIG. 18, in the second operation of the dehumidifying operation, the one-way fan (46) is operated, and the air passage (12) is switched to the second state by the flow path switching mechanism. Specifically, the first damper (D1), the second damper (D2), and the third damper (D3) are in the second state. The indoor air (RA) flows through the first passage (P1) and regenerates the adsorbent of the second heat exchanger (22). This air flows through the second passage (P2) and the third passage (P3) in this order, and is discharged to the outdoor space (S2) as exhaust air.

As shown in FIG. 17, in the third operation of the humidification operation, the one-way fan (46) is operated, and the air passage (12) is switched to the first state by the flow path switching mechanism. Specifically, the first damper (D1), the second damper (D2), and the third damper (D3) are in the first state. The outdoor air (OA) flows through the first passage (P1) and is heated and humidified by the first heat exchanger (21). This air flows through the third passage (P3) and the fourth passage (P4) in this order, and is supplied to the indoor space (S1) as supply air (SA).

As shown in FIG. 18, in the fourth operation of the humidification operation, the one-way fan (46) is operated, and the air passage (12) is switched to the second state by the flow path switching mechanism. Specifically, the first damper (D1), the second damper (D2), and the third damper (D3) are in the second state. The indoor air (RA) flows through the first passage (P1) and imparts moisture to the adsorbent of the second heat exchanger (22). This air flows through the second passage (P2) and the third passage (P3) in this order, and is discharged to the outdoor space (S2) as exhaust air (EA).

<Modification 12 (filter >>)
As shown in FIGS. 19 and 20, the humidity control unit (10) of the modified example 12 has a filter (38). The filter (38) is arranged closer to the outdoor space (S2) than the moisture absorbing unit (30), the first heat exchanger (21), and the second heat exchanger (22). The filter (38) is placed near the outside air port (14). The filter (38) collects dust in the outdoor air (OA) flowing into the air passage (12).

The filter (38) is configured to remove dust adhering to the filter (38) by air during the operation of transporting air from the outdoor space (S2) to the indoor space (S1).

Specifically, as shown in FIG. 19, in the first operation of the dehumidifying operation, dust is collected on the outer surface of the filter (38). From this state, as shown in FIG. 20, when the second operation of the dehumidifying operation is executed, the exhaust air (EA) passes through the filter (38). This exhaust air (EA) can discharge the dust adhering to the outer surface of the filter (38) to the outdoor space (S2). By alternately performing the first operation and the second operation in the dehumidifying operation, the amount of dust adhering to the filter (38) can be substantially reduced. As a result, the life of the filter (38) can be extended.

As shown in FIG. 19, in the third operation of the humidification operation, dust is collected on the outer surface of the filter (38). From this state, as shown in FIG. 20, when the fourth operation of the humidification operation is executed, the exhaust air (EA) passes through the filter (38). This exhaust air (EA) can discharge the dust adhering to the outer surface of the filter (38) to the outdoor space (S2). By alternately performing the third operation and the fourth operation in the humidification operation, the amount of dust adhering to the filter (38) can be substantially reduced. As a result, the life of the filter (38) can be extended.

<Modification 13 (Other arrangement of humidity control unit>>
The humidity control unit (10) of the embodiment is provided on the wall (W) of the house. As shown in FIG. 21, the humidity control unit (10) may be provided in the window (5) or the window frame (6) of the house.

<Modification 14 (Positive pressure control (1)>>
The humidity control system (S) of the modification 14 shown in FIG. 22 controls a plurality of humidity control units (10) based on the degree of contamination of the outside air and the presence or absence of intrusion of the outside air.

The humidity control system (S) has an intrusion detection unit (70) that detects the intrusion of outside air from the outdoor space (S2) into the indoor space (S1), and a first determination unit (71) that determines the degree of contamination of the outside air. And.

The intrusion detection unit (70) of this example is an open / close detection unit that detects the opening / closing of the door (7) of the house. When the door (7) is opened, the intrusion detection unit (70) outputs a signal indicating that outside air is invading to the interlocking control unit (C).

The first determination unit (71) acquires information on the degree of pollution of the outside air. Examples of the degree of contamination of the outside air include pollen in the outside air, suspended particulate matter, and odorous components. The first determination unit (71) of this example acquires pollen information in the outside air as information indicating the degree of contamination of the outside air. The first judgment unit (71) receives information from an external organization such as the Japan Meteorological Agency via the Internet. The first determination unit (71) may be a sensor that directly detects the degree of contamination such as pollen in the outside air.

When the first condition and the second condition are satisfied, the interlocking control unit (C) controls a plurality of humidity control units (10) so that the indoor space (S1) becomes a positive pressure. The first condition is a condition in which the degree of contamination of the outside air is higher than a predetermined threshold value. The second condition is a condition in which the intrusion detection unit (70) detects the intrusion of outside air. If these conditions are met, pollen in the outside air will invade the indoor space (S1) through the open door. When these conditions are satisfied, the interlocking control unit (C) makes the total air supply amount of the plurality of humidity control units (10) larger than the total displacement amount of the plurality of humidity control units (10). Control multiple humidity control units (10).

Specifically, the number of humidity control units (10) that supply air is increased to the number of humidity control units (10) that exhaust air. Alternatively, the air supply air volume of the humidity control unit (10) that supplies air is increased. On the contrary, the exhaust air volume of the humidity control unit (10) that exhausts air is reduced. By such control, the indoor space (S1) is maintained at a positive pressure. Therefore, it is possible to prevent pollen and the like in the outside air from entering the indoor space (S1).

In the interlocking control unit (C), when only the first condition is satisfied, the total air supply amount of the plurality of humidity control units (10) becomes larger than the total displacement amount of the plurality of humidity control units (10). As such, a plurality of humidity control units (10) may be controlled. When only the second condition is satisfied, the interlocking control unit (C) makes the total air supply amount of the plurality of humidity control units (10) larger than the total displacement amount of the plurality of humidity control units (10). , A plurality of humidity control units (10) may be controlled.

<Modification 15 (Positive pressure control (2)>>
The humidity control system (S) of the modified example 15 is provided with a positive pressure operation mode in which the indoor space (S1) is always kept at a positive pressure regardless of the state of dirt or intrusion of the outside air. This positive pressure operation mode is executed in a clean room, an operating room, or the like. When the positive pressure operation mode is executed, the plurality of humidity control units so that the total air supply amount of the plurality of humidity control units (10) becomes larger than the total exhaust amount of the plurality of humidity control units (10). (10) is controlled. As a result, it is possible to always prevent the intrusion of air from the external space into the clean room or the operating room.

<Modification example 16 (negative pressure control)>
The humidity control system (S) of the modification 16 shown in FIG. 23 controls a plurality of humidity control units (10) based on the degree of air pollution in the indoor space (S1).

The humidity control system (S) includes a second determination unit (72) for determining the degree of air pollution in the indoor space (S1). The second determination unit (72) of this example is an air quality sensor that is arranged in the indoor space (S1) and detects the air quality of the indoor air. Examples of the air quality indicating the degree of air pollution include dust, odorous components, formaldehyde, and VOC (volatile organic compounds). The information detected by the second determination unit (72) is output to the interlocking control unit (C).

When the third condition is satisfied, the interlocking control unit (C) controls a plurality of humidity control units (10) so that the indoor space (S1) becomes a negative pressure. The third condition is a condition in which the degree of air pollution in the indoor space (S1) is higher than a predetermined threshold value. When these conditions are satisfied, the interlocking control unit (C) makes the total exhaust amount of the plurality of humidity control units (10) larger than the total air supply amount of the plurality of humidity control units (10). Control multiple humidity control units (10).

Specifically, the number of humidity control units (10) that exhaust air is increased to the number of humidity control units (10) that supply air. Alternatively, the exhaust air volume of the humidity control unit (10) that exhausts air is increased. On the contrary, the air supply air volume of the humidity control unit (10) that supplies air is reduced. With such control, dust, odorous components, etc. in the air in the indoor space (S1) can be quickly discharged to the outdoor space (S2).

<Modification 17 (control based on CO ₂ concentration)>
The humidity control system (S) of the modified example 17 includes a concentration sensor. The CO ₂ concentration sensor is arranged in the indoor space (S1). The interlocking control unit (C) controls the air supply amount and the exhaust amount of the plurality of humidity control units (10) so that the CO ₂ concentration detected by the CO ₂ concentration sensor becomes a predetermined value or less.

<Modification 18 (Interlocking control with air conditioner)>
The humidity control system (S) of the modification 18 is operated in conjunction with the air conditioner. The air conditioner targets the indoor space (S1) for air conditioning. In the humidity control system (S), the first operation of dehumidifying with the humidity control unit (10) and cooling with the air conditioner at the same time, and the first operation of stopping the air conditioner and dehumidifying only with the humidity control unit (10). It is possible to switch between two operations. The interlocking control unit (C) interlocks and controls the air conditioner and a plurality of humidity control units (10).

The calculation unit of the interlocking control unit (C) predicts the operation efficiency E1 during the first operation and the operation efficiency E2 during the second operation based on the outside air temperature, the inside air temperature, the outside air humidity, the inside air humidity, and the like. When the calculation unit determines that E1 is larger than E2, the first operation is executed. When the calculation unit determines that E2 is larger than E1, the second operation is executed.

In the humidity control system (S), the third operation is to humidify with the humidity control unit (10) and at the same time to heat with the air conditioner, and the third operation to stop the air conditioner and humidify only with the humidity control unit (10). It is possible to switch between 4 operations. The interlocking control unit (C) interlocks and controls the air conditioner and a plurality of humidity control units (10).

The calculation unit of the interlocking control unit (C) predicts the operation efficiency E3 during the third operation and the operation efficiency E4 during the fourth operation based on the outside air temperature, the inside air temperature, the outside air humidity, the inside air humidity, and the like. When the calculation unit determines that E3 is larger than E4, the third operation is executed. When the calculation unit determines that E4 is larger than E3, the fourth operation is executed.

<Modification example 19 (air volume control)>
The humidity control system (S) of the modification 19 shown in FIG. 24 controls a plurality of humidity control units (10) so that the total air supply amount and the total exhaust amount of the indoor space (S1) are substantially equal to each other. In the indoor space (S1) of this example, a range hood (8), which is another ventilation device, is provided. The humidity control system (S) includes an air volume detection unit (73) that detects the air volume of the range hood (8). The air volume (displacement in this example) of the range hood (8) detected by the air volume detection unit (73) is output to the interlocking control unit (C).

The interlocking control unit (C) has a plurality of humidity control units so that the total air supply amount as a whole of the range hood (8) and the plurality of humidity control units (10) is substantially equal to the total exhaust amount as a whole. Control the air supply amount and exhaust amount of the unit (10). In other words, a plurality of humidity control units (10) are controlled so that the total air supply amount and the total exhaust amount in the indoor space (S1) are substantially the same. Even when the range hood (8) is turned on, the air supply / exhaust amount of the entire interior space (S1) can be balanced.

The other ventilation device may be an exhaust fan other than the range hood (8), or may be an air supply fan.

<< Other Embodiments >>
The above-described embodiment and modifications thereof may have the following configurations.

The humidity control system (S) of the above embodiment includes a plurality of humidity control units (10). However, the dehumidifying operation or the humidifying operation may be performed by only one humidity control unit (10). In this case, in the dehumidifying operation, the first operation and the second operation are alternately and repeatedly performed in one humidity control unit (10). In the humidification operation, the third operation and the fourth operation are alternately and repeatedly performed in one humidity control unit (10).

In the above embodiment, the control device that controls the plurality of humidity control units (10) is also used as the interlocking control unit (C). However, for each humidity control unit (10), a control device for controlling the corresponding humidity control unit (10) may be provided.

In the above embodiment, the humidity control unit (10) is provided on the wall (W), window (5), or window frame (6) of the house. However, the humidity control unit (10) may be installed in the space behind the ceiling to supply and exhaust air through a duct.

In the dehumidifying operation of the above embodiment, the first stop control is performed after the end of the first operation and before the start of the second operation, and the second stop control is performed after the end of the second operation and before the start of the first operation. ing. However, either one or both of the first stop control and the second stop control may be omitted.

In the humidifying operation of the above embodiment, the third stop control is performed after the end of the third operation and before the start of the fourth operation, and the fourth stop control is performed after the end of the fourth operation and before the start of the third operation. ing. However, either one or both of the third stop control and the fourth stop control may be omitted.

Although the embodiments and modifications have been described above, it will be understood that various modifications of the forms and details are possible without departing from the purpose and scope of the claims. In addition, the above embodiments, modifications, and other embodiments may be appropriately combined or replaced as long as they do not impair the functions of the present disclosure. The above-mentioned descriptions of "first", "second", "third" ... Are used to distinguish the words and phrases to which these descriptions are given, and the number and order of the words and phrases are also limited. It's not something to do.

As described above, the present disclosure is useful for humidity control units and humidity control systems.

S1 indoor space (first space)
S2 outdoor space (second space)
5 windows
6 Window frame
8 Ventilation device
10 Humidity control unit
10A 1st humidity control unit
10B 2nd humidity control unit
12 air passage
13 Internal air opening (opening)
14 Outside air port (opening)
20a outdoor unit
21 First heat exchanger (heat exchanger, heat source)
22 Second heat exchanger (heat exchanger, heat source)
23 Compressor
24 outdoor heat exchanger
30 Moisture absorption unit (moisture absorption part)
32 Adsorption heat exchanger (moisture absorbing part, heat source)
38 filter
44 1st fan
45 2nd fan
46 One-way fan (fan)
70 Intrusion detection unit
71 First judgment unit
72 Second judgment unit
73 Air volume detector
D1 1st damper (flow path switching mechanism)
D2 2nd damper (flow path switching mechanism)
D3 3rd damper (flow path switching mechanism)
M air transport mechanism

Claims (32)

An air passage (12) that connects the first space (S1), which is the target space, and the second space (S2),
Moisture absorbing parts (30, 32) arranged in the air passage (12) and absorbing moisture from the air and releasing moisture to the air,
A heat source (21,22,32) arranged in the air passage (12) and performing at least one of cooling and heating of the moisture absorbing portion (30,32).
An air transport mechanism (M) that reversibly conveys the direction of air flow in the air passage (12), and an air transport mechanism (M).
A humidity control unit including the heat source (21, 22, 32) and a control device (C) for controlling an air transport mechanism (M). In claim 1,
The control device (C) cools the moisture absorbing portion (30,32) by the heat source (21,22,32) and air in the second space (S2) by the air transport mechanism (M). A humidity control unit characterized by executing the first operation of transporting to one space (S1). In claim 2,
The control device (C) is
The first operation and
The moisture absorbing portion (30, 32) is heated by the heat source (21,22,32), and the air in the first space (S1) is transferred to the second space (S2) by the air transport mechanism (M). A humidity control unit characterized in that the second operation is alternately executed. In claim 3,
The control device (C) is a humidity control unit characterized in that the air transport mechanism (M) is stopped for a predetermined period after the end of the first operation and before the start of the second operation. In claim 3 or 4,
The control device (C) is a humidity control unit characterized in that the air transport mechanism (M) is stopped for a predetermined period after the end of the second operation and before the start of the first operation. In any one of claims 1 to 5,
The control device (C) heats the moisture absorbing portion (30, 32) by the heat source (21, 22, 32) and heats the air in the second space (S2) by the air transport mechanism (M). A humidity control unit characterized by executing a third operation of transporting to one space (S1). In claim 6,
The control device (C) is
With the third operation
The heat source (21,22,32) cools the moisture absorbing portion (30,32), and the air transport mechanism (M) transports the air in the first space (S1) to the second space (S2). A humidity control unit characterized by alternately executing four operations. In claim 7,
The control device (C) is a humidity control unit characterized in that the air transport mechanism (M) is stopped for a predetermined period after the end of the third operation and before the start of the fourth operation. In claim 7 or 8,
The control device (C) is a humidity control unit characterized in that the air transport mechanism (M) is stopped for a predetermined period after the end of the fourth operation and before the start of the third operation. In any one of claims 1 to 9,
A humidity control unit characterized in that the first space (S1) is an indoor space and the second space (S2) is an outdoor space. In any one of claims 1 to 10,
The heat source (21,22,32) is a humidity control unit including a heat exchange unit (21,22,32) through which a heat medium flows. 11.
The heat exchange unit
A first heat exchanger (21) arranged on the first space (S1) side of the hygroscopic portion (30) to cool and heat air.
A humidity control unit that is arranged on the second space (S2) side of the moisture absorbing portion (30) and includes a second heat exchanger (22) that cools and heats air. 11.
A humidity control unit characterized in that the heat exchange unit is an adsorption heat exchanger (32) that has an adsorbent that adsorbs and desorbs water and also serves as the moisture absorbing unit (30, 32). In any one of claims 11 to 13,
A humidity control unit including a refrigerant circuit (R) in which a refrigerant as a heat medium circulates to perform a refrigeration cycle. In claim 14,
A humidity control unit including an outdoor unit (20a) having a compressor (23) and an outdoor heat exchanger (24) connected to the refrigerant circuit (R). In any one of claims 1 to 14,
The air transport mechanism (M) is a humidity control unit characterized by being a fan capable of rotating in the forward direction and the reverse direction. In any one of claims 1 to 14,
The air transport mechanism (M) has a first fan (44) that blows air toward the first space (S1) and a second fan (45) that blows air toward the second space (S2). ) And a humidity control unit. In any one of claims 1 to 14,
The air transport mechanism (M)
With at least one fan (46)
It is provided with a flow path switching mechanism (D1, D2, D3) for switching the air flow path of the air passage (12) between the first state and the second state.
In the air passage (12) in the first state, the air conveyed to the fan (46) flows from the second space (S2) to the first space (S1), and the air passage (12) in the second state. ), The humidity control unit is characterized in that the air conveyed to the fan (46) flows from the first space (S1) to the second space (S2). In any one of claims 1 to 18,
The center of the opening (13) on the first space (S1) side of the air passage (12) and the center of the opening (14) on the second space (S2) side of the air passage (12) are the air passages. A humidity control unit characterized in that the air flow directions of (12) are substantially the same. In any one of claims 1 to 19,
The humidity control unit is characterized in that the air passage (12) is provided so as to penetrate a wall (W) that separates the first space (S1) and the second space (S2). In any one of claims 1 to 19,
The air passage (12) is provided in a window (5) or a window frame (6) between the indoor space (S1) as the first space and the outdoor space (S2) as the second space. Humidity control unit characterized by that. In any one of claims 1 to 21,
In the air passage (12), a filter (38) arranged closer to the outdoor space (S2) as the second space than the moisture absorbing portion (30,32) and the heat source (21,22,32) is provided. Prepare,
The filter (38) is such that dust adhering to the filter (38) is removed by the air during the operation of transporting air from the indoor space (S1) as the first space to the outdoor space (S2). A humidity control unit characterized by being composed. It is a humidity control system equipped with multiple humidity control units that control the humidity of the target space.
A humidity control system, wherein the plurality of humidity control units are the humidity control units according to any one of claims 1 to 22. 23.
A humidity control system including an interlocking control unit (C) that cooperatively controls the plurality of humidity control units (10). 24.
The plurality of humidity control units (10) include at least one first humidity control unit (10A) and at least one second humidity control unit (10B).
The first humidity control unit (10A) and the second humidity control unit (10B) are
The heat source (21,22,32) cools the moisture absorbing portion (30,32), and the air transport mechanism (M) transports the air in the second space (S2) to the first space (S1). 1 operation and
The moisture absorbing portion (30, 32) is heated by the heat source (21,22,32), and the air in the first space (S1) is transferred to the second space (S2) by the air transport mechanism (M). It is configured to perform the second operation alternately,
In the interlocking control unit (C), when the first humidity control unit (10A) performs the first operation, the second humidity control unit (10B) performs the second operation, and the first humidity control unit (10B) performs the second operation. The first humidity control unit (10A) and the second humidity control unit (10B) so that the second humidity control unit (10B) performs the first operation when (10A) performs the second operation. Humidity control system characterized by controlling. In claim 25
At least one of the first humidity control unit (10A) and the second humidity control unit (10B) is such that the air transport mechanism (M) is stopped for a predetermined period between the first operation and the second operation. Consists of
The interlocking control unit (C) has the first humidity control unit (10A) and the second humidity control unit (10A) during a stop period of one of the first humidity control unit (10A) and the second humidity control unit (10B). A humidity control system characterized in that the first humidity control unit (10A) and the second humidity control unit (10B) are controlled so that the other side of the unit (10B) performs the first operation or the second operation. In claim 25 or 26
The first humidity control unit (10A) and the second humidity control unit (10B) are
The heat source (21,22,32) heats the moisture absorbing portion (30,32), and the air transport mechanism (M) transports the air in the second space (S2) to the first space (S1). 3 movements and
The heat source (21,22,32) cools the moisture absorbing portion (30,32), and the air transport mechanism (M) transports the air in the first space (S1) to the second space (S2). It is configured to execute the fourth operation alternately,
In the interlocking control unit (C), when the first humidity control unit (10A) performs the third operation, the second humidity control unit (10B) performs the fourth operation, and the first humidity control unit (10B) performs the fourth operation. The first humidity control unit (10A) and the second humidity control unit (10B) so that the second humidity control unit (10B) performs the third operation when the (10A) performs the fourth operation. Humidity control system characterized by controlling. 27.
At least one of the first humidity control unit (10A) and the second humidity control unit (10B) causes the air transport mechanism (M) to be stopped for a predetermined period between the third operation and the fourth operation. Consists of
The interlocking control unit (C) has the first humidity control unit (10A) and the second humidity control unit (10A) during a stop period of one of the first humidity control unit (10A) and the second humidity control unit (10B). A humidity control system comprising controlling a first humidity control unit (10A) and a second humidity control unit (10B) so that the other of the units (10B) performs a third operation or a fourth operation. In any one of claims 24 to 28,
A first determination unit (71) for determining the degree of air pollution in the second space (S2) is provided.
The interlocking control unit (C) is the total air supply of the plurality of humidity control units (10) when at least the condition that the degree of air pollution is determined to be higher than the predetermined value by the first determination unit (71) is satisfied. A humidity control system, characterized in that the plurality of humidity control units (10) are controlled so that the amount is larger than the total displacement of the plurality of humidity control units (10). 29.
An intrusion detection unit (70) for detecting the intrusion of air from the second space (S2) into the first space (S1) is provided.
The interlocking control unit (C) detects a condition in which the degree of air pollution is determined to be higher than a predetermined value by the first determination unit (71) and the intrusion detection unit (70) detects the intrusion of air. When the conditions are at least satisfied, the plurality of humidity control units (10) are provided so that the total air supply amount of the plurality of humidity control units (10) becomes larger than the total displacement of the plurality of humidity control units (10). Humidity control system characterized by controlling. In any one of claims 24 to 30,
A second determination unit (72) for determining the degree of air pollution in the first space (S1) is provided.
The interlocking control unit (C) has the total displacement of the plurality of humidity control units (10) when at least the condition that the degree of air pollution is determined to be higher than the predetermined value by the second determination unit (72) is satisfied. However, the humidity control system is characterized in that the plurality of humidity control units (10) are controlled so as to be larger than the total air supply amount of the plurality of humidity control units (10). In any one of claims 24 to 31,
The ventilation device (8) installed in the first space (S1) is provided with an air volume detecting unit (73) for detecting the air supply amount or the exhaust amount.
The interlocking control unit (C) substantially matches the total air supply amount and the total exhaust amount in the first space (S1) based on the air supply amount or the exhaust amount detected by the air volume detection unit (73). A humidity control system characterized in that the plurality of humidity control units (10) are controlled.

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