Humidifying and ventilating device

Abstract

The invention provides a humidifying and ventilating device capable of improving constructability. A humidity control ventilation device according to the present invention comprises: an air supply flow path through which air flows from a first space to a second space; an exhaust flow path through which air flows from the second space to the first space; a temperature regulator which is disposed in the air supply flow path or the air discharge flow path and cools or heats the air; and a plurality of cylindrical dehumidification rotors which are disposed on the downstream side of the temperature regulator so as to straddle the supply air flow path and the exhaust air flow path, and which perform adsorption dehumidification on one of the supply air flow path and the exhaust air flow path and perform regeneration humidification on the other of the supply air flow path and the exhaust air flow path. The air supply flow path and the exhaust flow path are arranged in an up-and-down manner in a range from the temperature regulator to the plurality of dehumidification rotors, and the longitudinal direction of the temperature regulator is the first direction.

Description

Technical Field

[0001] The invention relates to a humidity regulating ventilation device. Background Art

[0002] Patent Document 1 discloses an air conditioning device for exchanging indoor air with outdoor air. The air conditioning device includes a water adsorption unit whose rotor surface is horizontal.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2010-249485 Summary of the invention

[0006] Problems to be solved by the invention

[0007] The present invention provides a humidity-controlling ventilation device capable of improving construction performance.

[0008] Methods for solving problems

[0009] The humidity-control ventilation device of the present invention includes: an air supply path for causing air to flow from a first space to a second space; an exhaust path for causing air to flow from the second space to the first space; a temperature regulator disposed on the air supply path or the exhaust path for cooling or heating the air; and a plurality of cylindrical dehumidification rotors, which are disposed on the downstream side of the temperature regulator in a manner spanning the air supply path and the exhaust path, and perform adsorption dehumidification on one side of the air supply path or the exhaust path and regenerative humidification on the other side, the plurality of dehumidification rotors having their rotation axes disposed approximately horizontally and arranged in a first horizontal direction along a radial direction, the air supply path and the exhaust path are arranged in an up-and-down manner in a range from the temperature regulator to the plurality of dehumidification rotors, and the long side direction of the temperature regulator is the first direction.

[0010] A humidity-controlling ventilation device according to another technical solution of the present invention is a humidity-controlling ventilation device for replacing air in a first space with air in a second space, and comprises: a first flow path for air to flow in from one of the first space or the second space; a second flow path for air to flow in from the other of the first space or the second space; an upper temperature regulator disposed in the first flow path; a lower temperature regulator disposed in the second flow path; and a plurality of cylindrical dehumidification rotors disposed downstream of the upper temperature regulator and the lower temperature regulator. The dehumidification device is arranged in a manner spanning the first flow path and the second flow path, and adsorption dehumidification is performed on one of the first flow path or the second flow path, and regeneration humidification is performed on the other. The rotation axes of the multiple dehumidification rotors are arranged approximately horizontally and are arranged in a first horizontal direction along the radial direction. The second flow path is arranged below the first flow path within the range from the lower temperature regulator to the multiple dehumidification rotors, and the upper temperature regulator and the lower temperature regulator are arranged in a vertical direction at a position overlapping when viewed from above.

[0011] Effects of the Invention

[0012] The humidity controlling ventilator of the present invention can maintain the surface area of ​​the dehumidification rotor and reduce the size of the humidity controlling ventilator in the horizontal direction, thereby improving the constructability of the humidity controlling ventilator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a perspective view of the humidity controlling ventilator according to Embodiment 1.

[0014] Figure 2 This is a cross-sectional view of a humidity control ventilation device.

[0015] Figure 3 It is a top view of the humidity control ventilation device.

[0016] Figure 4 It is schematically indicated Figure 2 FIG. 4 is a diagram of a section IV-IV.

[0017] Figure 5 This is a cross-sectional view of the humidity controlling ventilator according to the second embodiment.

[0018] Figure 6 It is a top view of the humidity controlling ventilator according to Embodiment 2.

[0019] Figure 7 It is schematically indicated Figure 5 Figure VII-VII section.

[0020] Figure 8 This is a plan view of the humidity controlling ventilator in the operation mode for dehumidifying the second space.

[0021] Fig. 9 This is a VII-VII cross-sectional view in the operation mode for dehumidifying the second space.

[0022] Description of Reference Numerals

[0023] 1 Humidity control ventilation device

[0024] 10 Housing

[0025] 11 Upper surface

[0026] 12 Rear surface

[0027] 12a No. 1 suction port

[0028] 12b Second suction port

[0029] 13 front surface

[0030] 13a Exit 1

[0031] 13b 2nd outlet

[0032] 14 Bottom

[0033] 15 Partition 1

[0034] 16Second partition

[0035] 20 Total heat exchanger

[0036] 21 Bottom

[0037] 22 Side

[0038] 23 Side

[0039] 24 Side

[0040] 25 Side

[0041] 26 1st heat exchange inner flow path

[0042] 27 2nd heat exchange inner flow path

[0043] 31 Sensible heat exchanger (temperature regulator)

[0044] 33 Upper drain pan

[0045] 33a Delivery flow path

[0046] 35 Lower drain pan

[0047] 40 Dehumidification rotor

[0048] 41 Bottom

[0049] 43 Shaft components

[0050] 45 Divider

[0051] 51 No.1 air supply device

[0052] 53 Second air supply device

[0053] 101 Humidity Control Ventilation Device

[0054] 131 Upper sensible heat exchanger (upper temperature regulator)

[0055] 137 Lower sensible heat exchanger (lower temperature regulator)

[0056] 160 Upstream switching mechanism

[0057] 161 Upstream damper device

[0058] 162 Upstream side main body

[0059] 163 Air Gate

[0060] 164 Air Gate

[0061] 165 Air Door

[0062] 166 Air Gate

[0063] 167 Upstream side partition plate

[0064] 170 Downstream switching mechanism

[0065] 171 Downstream side upper and lower partition plates

[0066] 172 Downstream damper device

[0067] 173 Downstream side main body

[0068] 174 Air Gate

[0069] 175 damper

[0070] 176 Air Gate

[0071] 177 Air Gate

[0072] 178 Downstream side left and right partitions

[0073] L1 diagonal

[0074] S1 upper space (1st flow path)

[0075] S2 lower space (second flow path)

[0076] S3 1st upstream space

[0077] S4 2nd upstream space

[0078] S5 1st downstream space

[0079] S6 2nd downstream space

[0080] S7 air supply path (upper flow path)

[0081] S8 exhaust flow path (flow path on the lower side) DETAILED DESCRIPTION

[0082] (Knowledge and insights that form the basis of the present invention, etc.)

[0083] When the inventors came up with the present invention, in a technology such as a humidity control ventilation device, a structure including a dehumidification rotor that repeatedly adsorbs and releases water in the air was proposed in order to adjust the humidity of the air in the air supply path. Therefore, in this industry, a dehumidification rotor with a large surface area is provided in the humidity control ventilation device to improve the humidity adjustment capability. Under such circumstances, the inventors found that when a dehumidification rotor with a large surface area is provided, the installation size of the humidity control ventilation device is enlarged and the construction performance is deteriorated. In order to solve this problem, the subject of the present invention is formed.

[0084] Therefore, the present invention provides a humidity-controlling ventilation device capable of improving workability.

[0085] The following describes the embodiments in detail with reference to the accompanying drawings. However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of already known matters or repeated descriptions of substantially the same structures may be omitted. This is to avoid the following description from being more redundant than necessary and to facilitate understanding by those skilled in the art.

[0086] In addition, the drawings and the following description are provided for those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the claims by these descriptions.

[0087] (Implementation Method 1)

[0088] Below, use Figures 1 to 4 Implementation method 1 will be described.

[0089] [1-1. Structure]

[0090] [1-1-1. Structure of each part]

[0091] Figure 1 1 is a perspective view of the humidity controlling ventilation device 1 of Embodiment 1, and shows the internal structure of the humidity controlling ventilation device 1. In addition, the reference numeral X in the figure indicates the right side of the humidity controlling ventilation device 1, the reference numeral Y indicates the front side of the humidity controlling ventilation device 1, and the reference numeral Z indicates the top side. In the following description, unless otherwise specified, directions such as up and down, left and right, and front and back refer to directions based on the humidity controlling ventilation device 1.

[0092] like Figure 1 As shown, the humidity control ventilation device 1 has a housing 10 that is a substantially rectangular parallelepiped. Specifically, the housing 10 is a substantially rectangular parallelepiped having the longest side in the front-to-back direction, the second longest side in the left-to-right direction, and the shortest side in the up-down direction. The housing 10 is made of a metal plate. The housing 10 is hollow, and various devices of the humidity control ventilation device 1 are arranged inside. In addition, Figure 1 The humidity controlling ventilator 1 is shown in a state where the upper surface portion 11 , which is a horizontal plate-shaped member facing upward in the casing 10 , is removed.

[0093] A first suction port 12a is provided on the rear surface portion 12 of the shell 10. The rear surface portion 12 is a plate-shaped member in the shell 10 that faces rearward and is parallel to the left-right direction and the up-down direction. The first suction port 12a is a hollow, roughly cylindrical shape that protrudes rearward from the left side portion of the rear surface portion 12. An opening that connects the interior of the first suction port 12a with the interior of the shell 10 is formed in the rear surface portion 12. A pipe (not shown) that communicates with the first space is connected to the first suction port 12a. That is, the inner side of the shell 10 is connected to the first space via the first suction port 12a. In the present embodiment, the first space is a space that serves as a supply source for air supply and a discharge destination for exhaust air when the humidity control ventilation device 1 performs ventilation. The first space in the present embodiment is, for example, an outdoor space.

[0094] A second suction port 12b is provided on the rear surface portion 12 of the shell 10. The second suction port 12b is provided on the right side of the first suction port 12a. The second suction port 12b is a hollow, roughly cylindrical shape, and protrudes backward from the rear surface portion 12. An opening is formed on the rear surface portion 12 to connect the interior of the second suction port 12b with the interior of the shell 10. A pipe (not shown) connected to the second space is connected to the second suction port 12b. That is, the inner side of the shell 10 is connected to the second space via the second suction port 12b. In the present embodiment, the second space is a supply destination of the air supply from the first space when ventilation is performed using the humidity control ventilation device 1, and is a space that becomes a discharge source of exhaust gas relative to the first space. The second space in the present embodiment is, for example, a room in a house, a conference room, a guest room in a hotel, a living room for people, or a space for storing items such as a warehouse or a cargo room.

[0095] The first discharge port 13a is provided on the front surface portion 13 of the shell 10. The front surface portion 13 is a plate-shaped member in the shell 10 that faces forward and is parallel to the left-right direction and the up-down direction. The first discharge port 13a is a hollow, roughly cylindrical shape that protrudes forward from the left side portion of the front surface portion 13. An opening that connects the interior of the first discharge port 13a with the interior of the shell 10 is formed in the front surface portion 13. A pipe (not shown) that communicates with the first space is connected to the first discharge port 13a. That is, the inside of the shell 10 is connected to the first space via the first discharge port 13a.

[0096] The front surface portion 13 of the housing 10 is provided with a second discharge port 13b. The second discharge port 13b is arranged on the right side of the first discharge port 13a at the same height as the first discharge port 13a. The second discharge port 13b is a hollow, substantially cylindrical shape, and protrudes forward from the front surface portion 13. An opening is formed in the front surface portion 13 to connect the interior of the second discharge port 13b with the interior of the housing 10. A pipe (not shown) connected to the second space is connected to the second discharge port 13b. That is, the inside of the housing 10 is connected to the second space via the second discharge port 13b.

[0097] In the housing 10, the air flowing in from the suction ports 12a and 12b of the rear surface portion 12 flows from the discharge ports 13a and 13b of the front surface portion 13. That is, in the humidity control ventilator 1, the upstream side of the air flow direction is the rear side. In addition, in the humidity control ventilator 1, the downstream side of the air flow direction is the front side.

[0098] Figure 2 2 is a cross-sectional view of the humidity-controlling ventilation device 1, showing the humidity-controlling ventilation device 1 in a cross section perpendicular to the left-right direction. Figure 1 and Figure 2 As shown, a total heat exchanger 20 is provided inside the housing 10. The total heat exchanger 20 is, for example, a stationary total heat exchanger. The total heat exchanger 20 is formed in a quadrangular prism shape having a pair of square bottom surfaces 21 and four rectangular side surfaces 22, 23, 24, and 25. The total heat exchanger 20 is formed in a shape in which the distance between the pair of bottom surfaces 21 is larger than each side of the square bottom surface 21.

[0099] The total heat exchanger 20 is arranged in a posture in which the bottom surface 21 of the square is orthogonal to the left-right direction. That is, the long side direction of the total heat exchanger 20 is the left-right direction. In the present embodiment, the left-right dimension of the total heat exchanger 20 is substantially the same as the left-right dimension of the shell 10. In addition, the total heat exchanger 20 is arranged in a posture in which one of the two diagonal lines L1 of the bottom surface 21 of the square is horizontal. That is, each side surface 22 to side surface 25 of the total heat exchanger 20 is inclined up and down at 45° relative to the front-back direction.

[0100] The total heat exchanger 20 is provided with a flow path of air that leads from each side surface 22, 23 on the rear side of the total heat exchanger 20 to the side surfaces 24, 25 that are parallel to the side surfaces 22, 23. The total heat exchanger 20 performs heat exchange between the air flowing in the flow path between the mutually parallel side surfaces 22, 24 on one side and the air flowing in the flow path between the mutually parallel side surfaces 23, 25 on the other side. In other words, the total heat exchanger 20 performs heat exchange between the air flowing forward and upward (high in front and low in back) inside and the air flowing forward and downward (low in front and high in back) inside. In the total heat exchanger 20, the flow path that is inclined from the side surface 22 to be high in front and low in back and reaches the side surface 24 is referred to as the first heat exchange internal flow path 26. In the total heat exchanger 20, the flow path that is inclined from the side surface 23 to be low in front and high in back and reaches the side surface 25 is referred to as the second heat exchange internal flow path 27. The side surfaces 24, 25 correspond to the "outflow surface of the total heat exchanger" respectively.

[0101] A sensible heat exchanger 31 is provided inside the shell 10. In the present embodiment, the sensible heat exchanger 31 is a fin-tube type heat exchanger in which a refrigerant flows. The sensible heat exchanger 31 is connected to an outdoor unit or the like arranged outside the shell 10 via a refrigerant piping. The sensible heat exchanger 31 and the outdoor unit or the like form a refrigeration circuit. The sensible heat exchanger 31 can selectively perform a heating action of heating the air in the shell 10 and a cooling action of cooling the air by exchanging heat between the high-temperature refrigerant or the low-temperature refrigerant flowing inside and the air in the shell 10. In the present embodiment, the sensible heat exchanger 31 is an example of a "temperature regulator".

[0102] like Figure 1 and Figure 2 As shown, the sensible heat exchanger 31 has a substantially rectangular plate shape. The sensible heat exchanger 31 is disposed with its long side oriented in the left-right direction. The left-right dimension of the sensible heat exchanger 31 is substantially the same as the left-right dimension of the housing 10 .

[0103] The sensible heat exchanger 31 is located in front of and above the total heat exchanger 20. The sensible heat exchanger 31 is arranged to be inclined by about 45 degrees in the direction in which the front side is located downward.

[0104] Furthermore, the sensible heat exchanger 31 is arranged at a position overlapping with the total heat exchanger 20 in the vertical direction. In other words, a part of the sensible heat exchanger 31 is arranged at a position overlapping with a part of the total heat exchanger 20 in a plan view. Furthermore, the sensible heat exchanger 31 is arranged at a position overlapping with the total heat exchanger 20 in the front-back direction. In other words, a part of the sensible heat exchanger 31 is arranged at a position overlapping with a part of the total heat exchanger 20 in a front view. Therefore, the total heat exchanger 20 and the sensible heat exchanger 31 are compactly arranged together in the front-back direction and the up-down direction.

[0105] An upper drain pan 33 is provided inside the housing 10. The upper drain pan 33 is a tray-shaped component. The upper drain pan 33 stores condensed water generated by the sensible heat exchanger 31. The upper drain pan 33 is located below the sensible heat exchanger 31. A portion of the upper drain pan 33 is provided at a position that overlaps up and down with respect to the lower end of the sensible heat exchanger 31. In other words, a portion of the upper drain pan 33 overlaps with respect to the lower end of the sensible heat exchanger 31 when viewed from above. A drain hose (not shown) extending to the outside of the housing 10 is connected to the upper drain pan 33. The upper drain pan 33 discharges the stored condensed water via the drain hose.

[0106] The upper drain pan 33 is arranged approximately horizontally. The long side direction of the upper drain pan 33 is the left-right direction. The size of the upper drain pan 33 in the left-right direction is approximately the same as the size of the shell 10 in the left-right direction. Therefore, the upper drain pan 33 divides the internal space of the shell 10 into an upper space S1 on the upper side of the upper drain pan 33 and a lower space S2 on the lower side of the upper drain pan 33. The upper drain pan 33 receives condensation water dripping from the sensible heat exchanger 31 in the upper space S1. Therefore, it can be said that the upper drain pan 33 is arranged in the upper space S1.

[0107] In addition, the upper drain pan 33 is set at the same height as the horizontal diagonal line L1 of the bottom surface 21 of the total heat exchanger 20. In more detail, the position of the upper drain pan 33 in the up-down direction overlaps with the position of the horizontal diagonal line L1 of the bottom surface 21 of the total heat exchanger 20 in the up-down direction. In addition, the rear end of the upper drain pan 33 is connected to the front end of the total heat exchanger 20. Therefore, the air flowing forward and upward (high in front and low in rear) in the first heat exchange internal flow path 26 of the total heat exchanger 20 flows into the upper space S1. In addition, the air flowing forward and downward (low in front and high in rear) in the second heat exchange internal flow path 27 of the total heat exchanger 20 flows into the lower space S2.

[0108] A lower drain pan 35 is provided inside the housing 10. The lower drain pan 35 receives condensed water from the upper drain pan 33 and stores it. The lower drain pan 35 is a tray-shaped member. The lower drain pan 35 is located below the upper drain pan 33. The lower drain pan 35 is arranged on the bottom portion 14 of the housing 10. A drain hose (not shown) extending to the outside of the housing 10 is connected to the lower drain pan 35. The lower drain pan 35 discharges the stored condensed water through the drain hose.

[0109] The lower drain pan 35 is vertically overlapped with the entire upper drain pan 33. In other words, the lower drain pan 35 is overlapped with the entire upper drain pan 33 in a plan view. The front end of the lower drain pan 35 is located at the same position as the front end of the upper drain pan 33 in the front-rear direction. In other words, the ends of the upper drain pan 33 and the lower drain pan 35 on the downstream side of the air flow are arranged flush in the front-rear direction of the air flow.

[0110] As described above, each side surface 22 to 25 of the total heat exchanger 20 is inclined up and down in the front-to-back direction. Therefore, a space of a substantially triangular prism shape is formed between the bottom of the side surface 25 located on the front side and the lower side of the total heat exchanger 20 and the bottom surface 14 of the housing 10. The bottom surface 14 is a surface parallel to the upper surface 11 and is a plate-shaped portion located at the lower end of the housing 10. The lower drain pan 35 is a shape extending rearward to the inside of the substantially triangular prism-shaped space. Therefore, the rear end of the lower drain pan 35 is located at a position further rearward than the rear end of the upper drain pan 33. That is, the size of the lower drain pan 35 in the front-to-back direction is larger than the size of the upper drain pan 33 in the front-to-back direction. Therefore, the amount of condensation water that can be stored in the lower drain pan 35 is greater than the amount of condensation water that can be stored in the upper drain pan 33. In addition, a portion of the lower drain pan 35 overlaps with the total heat exchanger 20 when viewed from above.

[0111] The upper drain pan 33 is provided with a conveying flow path 33a for allowing the stored condensation water to flow to the lower drain pan 35. In the present embodiment, the conveying flow path 33a is a hollow structure extending downward from the bottom of the upper drain pan 33 to the lower drain pan 35.

[0112] like Figure 1 and Figure 2 As shown, two dehumidification rotors 40 are provided inside the housing 10. The dehumidification rotor 40 is composed of an adsorbent material that adsorbs water in the air. The dehumidification rotor 40 adsorbs water in the air to dehumidify. In addition, the dehumidification rotor 40 releases the adsorbed water to humidify as the humidity decreases. In other words, the dehumidification rotor 40 performs adsorption dehumidification and regeneration humidification of the air.

[0113] The dehumidification rotor 40 is formed into a cylindrical shape having a side surface as a curved surface and a pair of circular bottom surfaces 41, and more specifically, is formed into a disc shape. The dehumidification rotor 40 is formed into a structure having gaps, such as a honeycomb structure, a corrugated structure, etc. The dehumidification rotor 40 is configured to be ventilated through the gaps. The dehumidification rotor 40 allows air flowing into the interior from one bottom surface 41 to flow out from the other bottom surface 41. In the present embodiment, the two dehumidification rotors 40 have the same shape, material, and structure. In addition, in the present embodiment, the diameter of each dehumidification rotor 40 is substantially the same as the size of the housing 10 in the up and down direction.

[0114] like Figure 1 and Figure 2 As shown, the two dehumidification rotors 40 are respectively fixed to a rod-shaped shaft member 43. Each shaft member 43 is fixed to the dehumidification rotor 40 in a direction passing through the center of the circular bottom surface 41 of each dehumidification rotor 40 and perpendicular to the bottom surface 41. Each shaft member 43 is rotated by transmitting power from the output shaft of the motor (not shown) via a transmission (not shown) having gears or the like. In the present embodiment, the shaft member 43 to which the dehumidification rotor 40 is fixed is arranged in the front-to-back direction. Therefore, the dehumidification rotor 40 is driven by the motor to rotate with the front-to-back direction as the horizontal direction as the rotation axis.

[0115] The two dehumidification rotors 40 are arranged at the same position in the up-down direction and the front-back direction. That is, the two dehumidification rotors 40 are arranged side by side. Here, the left-right direction is a horizontal direction and a direction along the radial direction of the dehumidification rotor 40. In addition, the left-right direction is perpendicular to the front-back direction, which is the direction of the rotation axis of the dehumidification rotor 40. In this embodiment, the left-right direction corresponds to the "first direction".

[0116] The dehumidification rotor 40 is arranged on the front side of the upper drain pan 33 and the lower drain pan 35. In addition, the rear end of the dehumidification rotor 40 is close to the front ends of the upper drain pan 33 and the lower drain pan 35 in the front-to-back direction. In addition, the position occupied by the upper drain pan 33 in the up-down direction overlaps with the position occupied by the rotation axis of the dehumidification rotor 40 in the up-down direction. The bottom surface 41 on the upstream side of the dehumidification rotor 40 is divided into an upper part and a lower part by an inlet partition plate. The air flowing in the upper space S1 flows into the upper part of the dehumidification rotor 40 via the upper part of the bottom surface 41. In addition, the air flowing in the lower space S2 flows into the lower part of the dehumidification rotor 40 via the lower part of the bottom surface 41.

[0117] A first air supply device 51 is provided inside the housing 10. The first air supply device 51 sends the air inside the housing 10 forward, so that the air flows to the first space via the first outlet 13a and the duct. In the present embodiment, the first air supply device 51 is arranged at the front end inside the housing 10, and is connected to the first outlet 13a via the opening of the front surface portion 13.

[0118] A second air supply device 53 is provided inside the housing 10. The second air supply device 53 sends the air inside the housing 10 forward, so that the air flows to the second space via the second outlet 13b and the duct. In the present embodiment, the second air supply device 53 is arranged at the front end inside the housing 10, and is connected to the second outlet 13b via the opening of the front surface portion 13. In addition, in the present embodiment, each air supply device 51, 53 is a centrifugal Sirocco fan with high static pressure and not easily affected by the resistance of the flow path.

[0119] The humidity control ventilation device 1 is controlled by a control device not shown in the figure. The control device can be arranged inside the housing 10, or it can be arranged outside the housing 10. The control device has a processor. The processor is composed of a CPU (Central Processing Unit), an MPU (Micro-Processing Unit), a microcontroller or other computing processing devices. The control device includes the above-mentioned processor, ROM (Read Only Memory), and RAM (Random Access Memory), and controls the humidity control ventilation device 1 by executing the program by the processor. The control device may also include a memory not shown in the figure. The memory is a storage device that stores programs and data executed by the processor in a non-volatile manner. The memory is composed of a magnetic storage device, a semiconductor storage element or other types of non-volatile storage devices. Specifically, the memory is composed of an HDD (Hard Disk Drive), a flash ROM, an SSD (Solid State Drive), and the like.

[0120] [1-1-2. Structure of flow path]

[0121] Figure 3 It is a plan view of the humidity controlling ventilator 1 , and schematically shows the humidity controlling ventilator 1 in a state where the upper surface portion 11 is removed. Figure 4 It is schematically indicated Figure 2 In the figure, the air flowing into the housing 10 from the first suction port 12a is indicated by white arrows, and the air flowing into the housing 10 from the second suction port 12b is indicated by black arrows.

[0122] In the shell 10, a first partition 15 is provided on the rear side of the total heat exchanger 20. The first partition 15 is made of, for example, a metal plate. The first partition 15 divides the space from the rear surface portion 12 to the two side surfaces 22 and 23 on the rear side of the total heat exchanger 20 in the shell 10 into two spaces, namely, a first upstream space S3 and a second upstream space S4.

[0123] The first upstream space S3 is a space that connects the first suction port 12a with the side surface 22 on the rear and lower side of the total heat exchanger 20. The first upstream space S3 occupies the left side of the space in the shell 10 near the rear surface portion 12 and occupies the lower side of the space in the shell 10 near the total heat exchanger 20.

[0124] The second upstream space S4 is a space that connects the second suction port 12b with the side surface 23 on the rear and upper side of the total heat exchanger 20. The second upstream space S4 occupies the right side of the space in the shell 10 near the rear surface portion 12 and occupies the upper side of the space in the shell 10 near the total heat exchanger 20.

[0125] In addition, as described above, the space from the two side surfaces 24 and 25 on the front side of the total heat exchanger 20 to the dehumidification rotor 40 is divided into an upper space S1 and a lower space S2 by the upper drain pan 33. The air that flows into the total heat exchanger 20 from the first upstream space S3 and flows forward and upward (high in front and low in the back) in the first heat exchange internal flow path 26 of the total heat exchanger 20 flows into the upper space S1. The air that flows into the total heat exchanger 20 from the second upstream space S4 and flows forward and downward (low in front and high in the back) in the second heat exchange internal flow path 27 of the total heat exchanger 20 flows into the lower space S2.

[0126] In this embodiment, a partition plate 45 is provided at a position flush with the bottom surface 41 on the rear side of the dehumidification rotor 40 and perpendicular to the front-rear direction. The partition plate 45 partitions the housing 10 front and rear. Two circular holes are formed in the partition plate 45, which overlap with the entirety of each dehumidification rotor 40 when viewed from the front. Through the partition plate 45, the air in the upper space S1 and the lower space S2 reliably flows forward through the dehumidification rotor 40.

[0127] A second partition 16 is provided on the front side of the partition plate 45. The second partition 16 is formed of, for example, a metal plate. The second partition 16 divides the space from the front side of the partition plate 45 to the front surface 13 of the housing 10 into two spaces, namely, a first downstream space S5 and a second downstream space S6.

[0128] The first downstream space S5 is a space that connects a portion of the upper side of the dehumidification rotor 40 to the second discharge port 13b. The first downstream space S5 occupies the upper side of the space in the housing 10 near the partition plate 45 and occupies the right side of the space in the housing 10 near the front surface portion 13. In the present embodiment, the first downstream space S5 includes a second air supply device 53.

[0129] The second downstream space S6 is a space that connects a portion of the lower side of the dehumidification rotor 40 to the first discharge port 13a. The second downstream space S6 occupies the lower side of the space in the housing 10 near the partition plate 45 and occupies the left side of the space in the housing 10 near the front surface portion 13. In the present embodiment, the first downstream space S5 includes the first air supply device 51.

[0130] That is, the first suction port 12a is connected to the second discharge port 13b via the first upstream space S3, the first heat exchange internal flow path 26, the upper space S1 and the first downstream space S5 in sequence. In addition, the second suction port 12b is connected to the first discharge port 13a via the second upstream space S4, the second heat exchange internal flow path 27, the lower space S2 and the second downstream space S6 in sequence. Hereinafter, the upper space S1 and the first downstream space S5 are regarded as one flow path of air, which is called the supply flow path S7. The supply flow path S7 allows air to flow from the first space to the second space. In addition, the lower space S2 and the second downstream space S6 are regarded as one flow path of air, which is called the exhaust flow path S8. The exhaust flow path S8 allows air to flow from the second space to the first space. In the present embodiment, the supply flow path S7 corresponds to the "flow path on the upper side". In the present embodiment, the exhaust flow path S8 corresponds to the "flow path on the lower side".

[0131] [1-2. Action]

[0132] Next, the operation of the humidity controlling ventilator 1 configured as described above will be described.

[0133] [1-2-1. Actions related to ventilation and humidity control]

[0134] When humidity controlling ventilator 1 is operated, first air sending device 51 and second air sending device 53 are driven.

[0135] By driving the first air supply device 51, air flows from the second space into the second suction port 12b via the duct. The air flowing into the second suction port 12b reaches the first exhaust port 13a via the second upstream space S4, the second heat exchange internal flow path 27 and the exhaust flow path S8. The air reaching the first exhaust port 13a flows into the first space via the duct. By driving the second air supply device 53, air flows from the first space into the first suction port 12a via the duct. The air flowing into the first suction port 12a reaches the second exhaust port 13b via the first upstream space S3, the first heat exchange internal flow path 26 and the air supply flow path S7. The air reaching the second exhaust port 13b flows into the second space via the duct. In this way, by driving the humidity control ventilation device 1, the first space and the second space are ventilated.

[0136] During the operation of the humidity control ventilator 1, the air flowing in the first upstream space S3 and the air flowing in the second upstream space S4 exchange heat with each other in the total heat exchanger 20. Thus, when the temperature of the air in the first space is different from the temperature of the air in the second space, the temperature of the air in the supply air passage S7 on the outlet side of the total heat exchanger 20 approaches the temperature of the air in the second space. In addition, the temperature of the air in the exhaust air passage S8 approaches the temperature of the air in the first space.

[0137] After passing through the total heat exchanger 20, the air in the air supply flow path S7 reaches the sensible heat exchanger 31. The sensible heat exchanger 31 heats or cools the air in the air supply flow path S7 by the action of the refrigeration circuit. When the air is at a low temperature, the amount of saturated water vapor decreases, so the relative humidity of the air in the air supply flow path S7 increases by being cooled, and the relative humidity decreases by being heated. The sensible heat exchanger 31 performs a cooling action when the humidity control ventilator 1 is in an operation mode for dehumidifying the second space, and cools the air in the air supply flow path S7. The sensible heat exchanger 31 performs a heating action when the humidity control ventilator 1 is in an operation mode for humidifying the second space, and heats the air in the air supply flow path S7.

[0138] The air in the supply air path S7 passes through the sensible heat exchanger 31 and reaches the upper part of the dehumidification rotor 40. The air in the exhaust air path S8 passes through the total heat exchanger 20 and reaches the lower part of the dehumidification rotor 40. The dehumidification rotor 40 releases water to the air with high temperature and low relative humidity and absorbs water from the air with low temperature and high relative humidity.

[0139] In the case of the operation mode in which the humidity control ventilation device 1 dehumidifies the second space, the low-temperature and high-relative-humidity air cooled by the sensible heat exchanger 31 flows into the upper part of the dehumidification rotor 40. Therefore, the upper part of the dehumidification rotor 40 adsorbs water from the air of the air supply flow path S7. That is, the dehumidification rotor 40 performs adsorption dehumidification on the air of the air supply flow path S7. The portion of the dehumidification rotor 40 that adsorbs water from the air supply flow path S7 is rotated by the drive of the motor and moves downward, and is exposed to the air of the exhaust flow path S8. A portion of the air in the dehumidification rotor 40 that is exposed to the exhaust flow path S8 releases the water adsorbed from the air supply flow path S7 to the air of the exhaust flow path S8, and returns to a state that is easy to adsorb water. That is, the dehumidification rotor 40 regenerates the humidification of the air of the exhaust flow path S8.

[0140] In the case of the operation mode in which the humidity control ventilation device 1 humidifies the second space, the high-temperature and low-relative-humidity air heated by the sensible heat exchanger 31 flows into the upper part of the dehumidification rotor 40. Therefore, the upper part of the dehumidification rotor 40 releases water to the air of the supply air path S7. That is, the dehumidification rotor 40 regenerates and humidifies the air of the supply air path S7. The portion of the dehumidification rotor 40 that releases water to the supply air path S7 is rotated by the drive of the motor and moves downward, and is exposed to the air of the exhaust air path S8. A portion of the air in the dehumidification rotor 40 that is exposed to the exhaust air path S8 is dried, so it adsorbs water from the air of the exhaust air path S8 and returns to a state where it can release water again. That is, the dehumidification rotor 40 dehumidifies the air of the exhaust air path S8 by adsorption.

[0141] In this manner, the humidity controlling ventilator 1 performs ventilation of the second space and adjusts the relative humidity by distributing the water in the air in the supply flow path S7 and the exhaust flow path S8 via the dehumidification rotor 40 .

[0142] [1-2-2. About the behavior of condensation water]

[0143] When the sensible heat exchanger 31 cools the air in the exhaust flow path S8 as in the operation mode in which the humidity controlling ventilator 1 dehumidifies the second space, condensed water may be generated on the surface of the sensible heat exchanger 31. In this case, the condensed water drips onto the upper drain pan 33.

[0144] The condensation water dripping onto the upper drain pan 33 is stored in the upper drain pan 33. A portion of the condensation water stored in the upper drain pan 33 flows downward in the conveying flow path 33a and flows into the lower drain pan 35. As described above, the amount of condensation water that can be stored in the lower drain pan 35 is greater than the amount of condensation water that can be stored in the upper drain pan 33. Therefore, even when condensation water exceeding the allowable amount of storage and drainage of the upper drain pan 33 is generated, the condensation water can be stored in the lower drain pan 35.

[0145] [1-3. Effects, etc.]

[0146] As described above, in the present embodiment, the humidity-controlling ventilation device 1 includes: an air supply passage S7 for causing air to flow from the first space to the second space; an exhaust passage S8 for causing air to flow from the second space to the first space; a sensible heat exchanger 31 disposed in the air supply passage S7 or the exhaust passage S8 for cooling or heating the air; and a plurality of cylindrical dehumidification rotors 40, which are disposed across the air supply passage S7 and the exhaust passage S8 on the downstream side of the sensible heat exchanger 31, and perform adsorption dehumidification on one of the air supply passage S7 or the exhaust passage S8, and regenerate humidification on the other. The rotation axes of the plurality of dehumidification rotors 40 are disposed approximately horizontally and are arranged in the left-right direction. The air supply passage S7 and the exhaust passage S8 are arranged vertically in the range from the sensible heat exchanger 31 to the plurality of dehumidification rotors 40, and the long side direction of the sensible heat exchanger 31 is the left-right direction.

[0147] Thus, the surface area of ​​the dehumidification rotor 40 can be maintained, and the area occupied by the dehumidification rotor 40 in a plan view can be reduced. In addition, the direction in which the plurality of dehumidification rotors 40 are arranged coincides with the long side direction of the sensible heat exchanger 31, and the size of the humidity control ventilator 1 in the horizontal direction is reduced. Therefore, the constructability of the humidity control ventilator 1 is improved.

[0148] As shown in the present embodiment, the humidity control ventilation device 1 may also be configured to include: a total heat exchanger 20, which is arranged on the upstream side of the sensible heat exchanger 31, so that the air flowing into the supply air path S7 and the exhaust air path S8 can exchange heat with each other; and an upper drain pan 33 that receives condensed water from the sensible heat exchanger 31; a lower drain pan 35, which is arranged in the flow path on the lower side of the supply air path S7 or the exhaust air path S8, and overlaps with the upper drain pan 33 when viewed from above; and a conveying flow path 33a that allows the condensed water to flow from the upper drain pan 33 to the lower drain pan 35, and the sensible heat exchanger 31 is arranged In the flow path on the upper side of the supply air flow path S7 or the exhaust air flow path S8, the total heat exchanger 20 is a quadrangular prism shape in which the side surfaces 22 to 25 are parallel to the left-right direction and a diagonal line L1 of the bottom surface 21 is along the horizontal direction, so that the air flowing between the parallel side surfaces 22 and 24 on one side flows into the supply air flow path S7, and the air flowing between the parallel side surfaces 23 and 25 on the other side flows into the exhaust air flow path S8. The upper drain pan 33 is arranged at the same height as the diagonal line L1, and the lower drain pan 35 extends to a position overlapping with the total heat exchanger 20 when viewed from above.

[0149] Thus, the upper drain pan 33 is less likely to hinder the outflow of air in the total heat exchanger 20. In addition, since the lower drain pan 35 can be enlarged by utilizing the empty space below the total heat exchanger 20, the amount of water that can be stored in the lower drain pan 35 can be increased without increasing the size of the humidity controlling ventilator 1. Therefore, it is easy to maintain the constructability of the humidity controlling ventilator 1 and to store the condensed water generated in the sensible heat exchanger 31.

[0150] As shown in the present embodiment, the humidification controlling ventilation device 1 may be configured such that the sensible heat exchanger 31 is arranged in a posture parallel to the side 24 of the supply air flow path S7 located on the upper side among the side 24, 25 on the outflow side of the air in the total heat exchanger 20, the upper drain pan 33 is arranged in a position overlapping with the lower end of the sensible heat exchanger 31 when viewed from above, and the lower drain pan 35 overlaps with the entire upper drain pan 33 when viewed from above.

[0151] Thus, the sensible heat exchanger 31 can be compactly arranged. In addition, even when the transport flow path 33a is provided at any position of the upper drain pan 33, the condensed water easily flows to the lower drain pan 35, and the restrictions on the position of providing the transport flow path 33a are reduced, so the upper drain pan 33 and the lower drain pan 35 can be compactly arranged. Therefore, it is easy to maintain the constructability of the humidity controlling ventilator 1 and to easily store the condensed water generated in the sensible heat exchanger 31.

[0152] As shown in the present embodiment, in the humidity controlling ventilator 1, the upper drain pan 33 and the lower drain pan 35 may be configured to be flush with each other at the ends on the downstream side of the air flow.

[0153] Thus, the upper drain pan 33 and the lower drain pan 35 can be brought closer to the dehumidification rotor 40, and the size of the humidity controlling ventilator 1 can be reduced. Therefore, the constructability of the humidity controlling ventilator 1 is improved.

[0154] (Implementation Method 2)

[0155] Below, use Figures 5 to 9 Embodiment 2 will be described. In addition, only the points different from Embodiment 1 will be described below, and duplicate descriptions will be omitted.

[0156] [2-1. Structure]

[0157] Figure 5 is a cross-sectional view of the humidity control ventilation device 101 according to the second embodiment, showing Figure 2cross section. In Embodiment 2, an upper sensible heat exchanger 131 and a lower sensible heat exchanger 137 are provided in the humidity control ventilation device 101. The upper sensible heat exchanger 131 has the same structure as the sensible heat exchanger 31 of Embodiment 1, and is provided in the upper space S1. The lower sensible heat exchanger 137 is provided in the lower space S2. In the present embodiment, the lower sensible heat exchanger 137 is a fin-tube type heat exchanger, and the refrigerant flows inside. The lower sensible heat exchanger 137 is connected to an outdoor unit or the like arranged outside the shell 10 via a refrigerant piping. The lower sensible heat exchanger 137 and the outdoor unit or the like form a refrigeration circuit. The lower sensible heat exchanger 137 exchanges heat between the high-temperature refrigerant or the low-temperature refrigerant flowing inside and the air in the shell 10, thereby selectively performing a heating action of heating the air in the shell 10 and a cooling action of cooling the air. In addition, the upper sensible heat exchanger 131 and the lower sensible heat exchanger 137 may be components of a common refrigeration circuit or components of independent refrigeration circuits. In the present embodiment, the upper sensible heat exchanger 131 is an example of an "upper temperature regulator". In the present embodiment, the lower sensible heat exchanger 137 is an example of a "lower temperature regulator".

[0158] like Figure 5 As shown, the lower sensible heat exchanger 137 has a substantially rectangular plate shape. The lower sensible heat exchanger 137 is arranged with its long side facing the left-right direction. The left-right dimension of the sensible heat exchanger 31 is substantially the same as the left-right dimension of the housing 10.

[0159] The lower sensible heat exchanger 137 is located in front of and below the total heat exchanger 20. In addition, the lower sensible heat exchanger 137 is arranged in a posture inclined by about 45 degrees in the direction located above the front side. That is, the lower sensible heat exchanger 137 is arranged along the side surface 25 located in front of and below the total heat exchanger 20.

[0160] In addition, the lower sensible heat exchanger 137 is arranged at a position that overlaps with the total heat exchanger 20 up and down. In other words, a part of the lower sensible heat exchanger 137 is arranged at a position that overlaps with a part of the total heat exchanger 20 when viewed from above. In addition, the lower sensible heat exchanger 137 is arranged at a position that overlaps with the total heat exchanger 20 front and back. In other words, a part of the lower sensible heat exchanger 137 is arranged at a position that overlaps with a part of the total heat exchanger 20 when viewed from the front. And, the lower sensible heat exchanger 137 is arranged at a position that overlaps with the upper sensible heat exchanger 131 up and down. In other words, a part of the lower sensible heat exchanger 137 is arranged at a position that overlaps with a part of the upper box-type heat exchanger when viewed from above. Therefore, the total heat exchanger 20, the upper sensible heat exchanger 131 and the lower sensible heat exchanger 137 are compactly and centrally arranged in the front-to-back direction and the up-down direction.

[0161] The lower drain pan 35 overlaps the entire lower sensible heat exchanger 137 in a plan view. Therefore, the condensed water attached to the lower sensible heat exchanger 137 drips toward the lower drain pan 35.

[0162] Figure 6 It is a plan view of the humidity controlling ventilator 101 according to Embodiment 2, and schematically shows the humidity controlling ventilator 101 in a state where the upper surface portion 11 is removed. Figure 7 It is schematically indicated Figure 5 Figure VII-VII section.

[0163] like Figures 5 to 7 As shown, an upstream switching mechanism 160 is provided in the humidity control ventilation device 101 instead of the first partition 15 of Embodiment 1. The upstream switching mechanism 160 is provided in the interior of the housing 10 at the front side of the first suction port 12a and the second suction port 12b. The upstream switching mechanism 160 is provided in the interior of the housing 10 at the rear side of the total heat exchanger 20.

[0164] The upstream switching mechanism 160 includes an upstream damper device 161. The upstream damper device 161 has a plate-shaped upstream main body 162 that divides the interior of the housing 10 into front and rear parts. A total of four dampers 163, 164, 165, and 166 are provided on the upstream main body 162, two of which are arranged in the vertical direction and two of which are arranged in the left and right direction. The upstream damper device 161 communicates the space on the rear side of the upstream damper device 161 with the space on the front side by opening each damper 163 to 166. Each damper 163 to 166 is, for example, an arbitrary damper such as a butterfly damper.

[0165] The upstream main body 162 is provided in contact with the end portion of the rear side of the total heat exchanger 20. In addition, the two dampers 163, 164 on the upper side of each damper 163-166 are located above the horizontal diagonal line L1 of the bottom surface 21 of the total heat exchanger 20. The two dampers 165, 166 on the lower side of each damper 163-166 are located below the horizontal diagonal line L1 of the bottom surface 21 of the total heat exchanger 20. Therefore, the air flowing to the front side through the two dampers 163, 164 on the upper side flows into the second heat exchange internal flow path 27. In addition, the air flowing to the front side through the two dampers 165, 166 on the lower side flows into the first heat exchange internal flow path 26.

[0166] The upstream switching mechanism 160 has an upstream partition plate 167. The upstream partition plate 167 is a plate-shaped member that divides the space on the rear side of the upstream main body 162 to the left and right. The first suction port 12a, the left and upper damper 163, and the left and lower damper 165 are located in the left space divided by the upstream partition plate 167. The second suction port 12b, the right and upper damper 164, and the right and lower damper 166 are located in the right space divided by the upstream partition plate 167.

[0167] That is, the upstream switching mechanism 160 can make the air flowing in from the first suction port 12a flow to the first heat exchange internal flow path 26 of the total heat exchanger 20 by opening the left and upper damper 163 and closing the left and lower damper 165. The upstream switching mechanism 160 can make the air flowing in from the first suction port 12a flow to the second heat exchange internal flow path 27 of the total heat exchanger 20 by closing the left and upper damper 163 and opening the left and lower damper 165. In addition, the upstream switching mechanism 160 can make the air flowing in from the second suction port 12b flow to the first heat exchange internal flow path 26 of the total heat exchanger 20 by opening the right and upper damper 164 and closing the right and lower damper 166. The upstream switching mechanism 160 can allow the air flowing in from the second suction port 12 b to flow into the second heat exchange internal flow path 27 of the total heat exchanger 20 by closing the right and upper damper 164 and opening the right and lower damper 166 .

[0168] The upstream switching mechanism 160 can be switched between a first state and a second state. In the first state, the upstream switching mechanism 160 closes the damper 163 on the left and upper side, opens the damper 164 on the right and upper side, opens the damper 165 on the left and lower side, and closes the damper 166 on the right and lower side. Thus, when the upstream switching mechanism 160 is in the first state, the air in the second space flows into the second heat exchange internal flow path 27 through the second suction port 12b, and the air in the first space flows into the first heat exchange internal flow path 26 through the first suction port 12a. In the second state, the upstream switching mechanism 160 opens the damper 163 on the left and upper side, closes the damper 164 on the right and upper side, closes the damper 165 on the left and lower side, and opens the damper 166 on the right and lower side. Thus, when the upstream switching mechanism 160 is in the second state, the air in the first space flows into the second heat exchange flow path 27 through the first suction port 12a, and the air in the second space flows into the first heat exchange flow path 26 through the second suction port 12b.

[0169] like Figures 5 to 7As shown, a downstream switching mechanism 170 is provided in the humidity control ventilation device 101 instead of the second partition 16 of Embodiment 1. The downstream switching mechanism 170 is provided in the housing 10 on the front side of the partition plate 45. The downstream switching mechanism 170 is provided in the housing 10 on the rear side of the first discharge port 13a and the second discharge port 13b.

[0170] The downstream switching mechanism 170 includes a downstream upper and lower partition plate 171. The downstream upper and lower partition plate 171 is a plate-shaped member extending rearward from the partition plate 45, and partitions the interior of the housing 10 into upper and lower parts. The air passing through the dehumidification rotor 40 via the upper space S1 flows into the upper space partitioned by the downstream upper and lower partition plate 171. The air passing through the dehumidification rotor 40 via the lower space S2 flows into the lower space partitioned by the downstream upper and lower partition plate 171. In the present embodiment, the downstream upper and lower partition plate 171 is provided at the same height as the upper drain pan 33.

[0171] The downstream switching mechanism 170 includes a downstream damper device 172. The downstream damper device 172 has a plate-shaped downstream main body 173 that divides the interior of the housing 10 into front and rear parts. A total of four dampers 174, 175, 176, and 177 are provided on the downstream main body 173, two of which are arranged in the vertical direction and two of which are arranged in the left and right direction. The downstream damper device 172 communicates the space on the rear side of the downstream damper device 172 with the space on the front side by opening each damper 174 to 177. Each damper 174 to 177 is, for example, an arbitrary damper such as a butterfly damper.

[0172] The downstream main body 173 is provided in contact with the rear end of the total heat exchanger 20. In addition, the two dampers 174 and 175 on the upper side of each damper 174 to 177 are located above the downstream upper and lower partition plates 171. The two dampers 176 and 177 on the lower side of each damper 174 to 177 are located below the downstream upper and lower partition plates 171.

[0173] The downstream switching mechanism 170 includes a downstream left-right partition plate 178. The downstream left-right partition plate 178 is a plate-shaped member that partitions the space on the front side of the downstream main body 173 to the left and right. The first discharge port 13a, the left and upper damper 174, and the left and lower damper 176 are located in the left space partitioned by the downstream left-right partition plate 178. The second discharge port 13b, the right and upper damper 175, and the right and lower damper 177 are located in the right space partitioned by the downstream left-right partition plate 178.

[0174] That is, the downstream switching mechanism 170 can make the air flowing in from the upper space S1 flow to the first outlet 13a by opening the left and upper damper 174 and closing the right and upper damper 175. The downstream switching mechanism 170 can make the air flowing in from the upper space S1 flow to the second outlet 13b by closing the left and upper damper 174 and opening the right and upper damper 175. In addition, the downstream switching mechanism 170 can make the air flowing in from the lower space S2 flow to the first outlet 13a by opening the left and lower damper 176 and closing the right and lower damper 177. The downstream switching mechanism 170 can make the air flowing in from the lower space S2 flow to the second outlet 13b by closing the left and lower damper 176 and opening the right and lower damper 177.

[0175] The downstream switching mechanism 170 can switch between a first state and a second state. In the first state, the downstream switching mechanism 170 closes the left and upper damper 174, opens the right and upper damper 175, opens the left and lower damper 176, and closes the right and lower damper 177. Thus, when the downstream switching mechanism 170 is in the first state, the air in the upper space S1 flows into the second space through the second outlet 13b, and the air in the lower space S2 flows into the first space through the first outlet 13a. In the second state, the downstream switching mechanism 170 opens the left and upper damper 174, closes the right and upper damper 175, closes the left and lower damper 176, and opens the right and lower damper 177. Thus, when the downstream switching mechanism 170 is in the second state, the air in the upper space S1 flows into the first space through the first outlet 13a, and the air in the lower space S2 flows into the second space through the second outlet 13b. In the present embodiment, the downstream switching mechanism 170 is an example of a "switching mechanism".

[0176] [2-2. Action]

[0177] Regarding the humidity controlling ventilator 101 according to the second embodiment configured as described above, the operation in the operation mode for dehumidifying the second space will be described below. Figure 8 It is a plan view of the humidity controlling ventilator 101 , and schematically shows the humidity controlling ventilator 101 in a state where the upper surface portion 11 is removed during an operation mode for dehumidifying the second space. Fig. 9 Schematic representation of the operation mode for dehumidifying the second space Figure 5 Section VII-VII of .

[0178] In the operation mode for dehumidifying the second space, the control device controls the refrigeration circuit to make the high-temperature refrigerant flow to the upper sensible heat exchanger 131 to perform a heating action to heat the air in the upper space S1. In addition, the control device controls the refrigeration circuit to make the low-temperature refrigerant flow to the lower sensible heat exchanger 137 to perform a cooling action to cool the air in the lower space S2.

[0179] In the operation mode for dehumidifying the second space, the control device switches the upstream switching mechanism 160 and the downstream switching mechanism 170 to the second state. As a result, the air in the first space flows to the first suction port 12a, the second heat exchange internal flow path 27, the lower space S2, the lower part of the dehumidification rotor 40 and the second discharge port 13b in sequence, and flows into the second space. In addition, the air in the second space flows to the second suction port 12b, the first heat exchange internal flow path 26, the upper space S1, the upper part of the dehumidification rotor 40 and the first discharge port 13a in sequence, and flows into the first space.

[0180] In the present embodiment, the upper space S1 corresponds to the “first flow path.” In the present embodiment, the lower space S2 corresponds to the “second flow path.”

[0181] As described above, in the operation mode for dehumidifying the second space, the lower sensible heat exchanger 137 cools the air in the lower space S2 , so the air flowing into the second space is dehumidified when passing through the lower portion of the dehumidification rotor 40 .

[0182] In addition, a large amount of condensed water is generated in the lower sensible heat exchanger 137 performing the cooling operation, but the lower drain pan 35 capable of storing more condensed water than the upper drain pan 33 is provided below the lower sensible heat exchanger 137. Therefore, it is not necessary to enlarge the upper drain pan 33, and enlargement of the upper drain pan 33 can be suppressed.

[0183] [2-3. Effects, etc.]

[0184] As described above, in the present embodiment, in the humidity control ventilation device 101 for replacing the air in the first space and the air in the second space, the humidity control ventilation device 101 comprises: an upper space S1 into which the air flows from one of the first space or the second space; a lower space S2 into which the air flows from the other of the first space or the second space; an upper sensible heat exchanger 131 disposed in the upper space S1; a lower sensible heat exchanger 137 disposed in the lower space S2; and a heat exchanger 137 disposed downstream of the upper sensible heat exchanger 131 and the lower sensible heat exchanger 137 so as to cross the upper space S1. 1 and the lower space S2, a plurality of cylindrical dehumidification rotors 40 are provided for performing adsorption dehumidification on one of the upper space S1 or the lower space S2 and performing regeneration humidification on the other, the rotation axes of the plurality of dehumidification rotors 40 are arranged approximately horizontally, and are arranged in the left-right direction along the radial direction, the lower space S2 is arranged below the upper space S1 in the range from the lower sensible heat exchanger 137 to the plurality of dehumidification rotors 40, and the upper sensible heat exchanger 131 and the lower sensible heat exchanger 137 are arranged in the vertical direction at a position overlapping when viewed from above.

[0185] This can reduce the area occupied by the dehumidification rotor 40 in a plan view while maintaining the surface area of ​​the dehumidification rotor 40, so that the size of the humidity controlling ventilator 101 in the horizontal direction can be reduced. Therefore, the constructability of the humidity controlling ventilator 101 is improved.

[0186] As in the present embodiment, the humidity control ventilation device 101 may also be configured to include: a total heat exchanger 20, which is arranged at a position upstream of the upper sensible heat exchanger 131 and the lower sensible heat exchanger 137, so that the air flowing in from the first space and the second space can be heat exchanged; an upper drain pan 33 for receiving condensed water from the upper sensible heat exchanger 131; and a lower drain pan 35 for receiving condensed water from the lower sensible heat exchanger 137, and the total heat exchanger 20 is a total heat exchanger 20 in which each side surface 22 to 25 is parallel to the first direction and the bottom surface 21 A diagonal line L1 is along a quadrangular prism shape in the horizontal direction, so that the air from one side of the first space or the second space flows between the parallel side surfaces 22, 24 on one side and flows into the upper space S1, and the air from the other side of the first space or the second space flows between the parallel side surfaces 23, 25 on the other side and flows into the lower space S2. The upper drain pan 33 is arranged at the same height as the diagonal line L1, and the lower drain pan 35 extends to a position overlapping with the total heat exchanger 20 when viewed from above.

[0187] Thus, the upper drain pan 33 is less likely to hinder the outflow of air in the total heat exchanger 20. In addition, the lower drain pan 35 can be enlarged by utilizing the space below the total heat exchanger 20, so the amount of water that can be stored in the lower drain pan 35 can be increased without increasing the size of the humidity controlling ventilator 101. Therefore, it is easy to maintain the constructability of the humidity controlling ventilator 101 and to store the condensed water generated in the sensible heat exchanger 31.

[0188] As shown in the present embodiment, the upper sensible heat exchanger 131 may be arranged in a posture parallel to the side 24 located in the upper space S1 among the side 24, 25 on the air outflow side in the total heat exchanger 20, the lower sensible heat exchanger 137 may be arranged in a posture parallel to the side 25 located in the lower space S2 among the side 24, 25 on the air outflow side in the total heat exchanger 20, the upper drain pan 33 may be arranged in a position overlapping with the lower end of the upper sensible heat exchanger 131 when viewed from above, the lower drain pan 35 may overlap with the entirety of the lower sensible heat exchanger 137 when viewed from above, and the ends of the upper drain pan 33 and the lower drain pan 35 on the downstream side of the air flow may be arranged flush.

[0189] Thus, the upper sensible heat exchanger 131, the lower sensible heat exchanger 137, and the total heat exchanger 20 can be compactly arranged, and the humidity control ventilator 101 can be easily miniaturized. The upper drain pan 33 and the lower drain pan 35 can be placed close to the dehumidification rotor 40, and the size of the humidity control ventilator 101 can be reduced.

[0190] As shown in the present embodiment, the humidity-controlling ventilation device 101 may include: a switching mechanism, which is arranged on the downstream side of the plurality of dehumidification rotors 40, and is capable of switching between a first state in which the air of the upper space S1 flows to the second space and the air of the lower space S2 flows to the first space, and a second state in which the air of the upper space S1 flows to the first space and the air of the lower space S2 flows to the second space; and a control device for controlling the switching mechanism, wherein the upper sensible heat exchanger 131 and the lower sensible heat exchanger 137 are capable of switching between cooling action and heating action, and in an operation mode for dehumidifying the second space, the control device switches the switching mechanism to the second state, causes the lower sensible heat exchanger 137 to perform cooling action, and causes the upper sensible heat exchanger 131 to perform heating action.

[0191] Thus, during defrosting in which a large amount of condensed water is generated in the sensible heat exchanger 31 that is performing cooling, the condensed water of the lower sensible heat exchanger 137 can be directly stored in the lower drain pan 35 that can store a large amount of water by making the lower sensible heat exchanger 137 perform cooling operation. Therefore, the size of the upper drain pan 33 can be reduced, and the size of the humidity control ventilator 101 can be reduced.

[0192] (Other embodiments)

[0193] As described above, as an illustration of the technology disclosed in this application, embodiments 1 and 2 are described. However, the technology of the present invention is not limited thereto, and can also be applied to embodiments that have been changed, replaced, added, omitted, etc. In addition, the various components described in embodiments 1 and 2 above can also be combined as new embodiments.

[0194] Therefore, other embodiments are exemplified below.

[0195] Furthermore, the above-described embodiments are modes for illustrating the technology of the present invention, and therefore various changes, substitutions, additions, omissions, etc. can be made within the scope of the claims or their equivalents.

[0196] In the above embodiment, it is described that the outer shape of the total heat exchanger 20 is a quadrangular prism with a square bottom surface 21, but this is only an example. For example, the outer shape of the total heat exchanger 20 may also be a quadrangular prism with a rhombus bottom surface 21. In addition, the outer shape of the total heat exchanger 20 may also be a quadrangular prism with a bottom surface 21 of any quadrilateral other than a square and a rhombus. However, in the case where the bottom surface 21 of the total heat exchanger 20 is a square or a rhombus, the second heat exchange inner flow path 27 with a low front and a high rear in the total heat exchanger 20 and the first heat exchange inner flow path 26 with a high front and a low rear in the total heat exchanger 20 are the same length, which enables the air in each other's flow paths to efficiently exchange heat.

[0197] In the above embodiment, it is described that each air supply device 51, 53 is a centrifugal Sirocco fan, but each air supply device 51, 53 only needs to be able to supply air between the first space and the second space via the housing 10. Therefore, each air supply device 51, 53 may also be an air supply device other than a centrifugal Sirocco fan such as an axial flow fan. In addition, the number of each air supply device 51, 53 is not limited, and one or more air supply devices may be provided in the humidity control ventilation device 1.

[0198] In the above embodiment, it is described that each air supply device 51, 53 is arranged at the front end inside the housing 10, but this is an example. The position where each air supply device 51, 53 is set is not limited to the front end inside the housing 10. In addition, each air supply device 51, 53 may also be a structure located outside the housing 10, such as inside a duct.

[0199] In the above embodiment, it is described that two dehumidification rotors 40 having the same shape, material and structure are provided in the humidity control ventilation device 1, 101, but the structure of the humidity control ventilation device 1, 101 is not limited thereto. Two or more dehumidification rotors 40 are provided in one humidity control ventilation device 1, 101, and their respective rotation axes are in the same horizontal direction, and they are arranged in a radial horizontal direction. For example, any number of three or more dehumidification rotors 40 may be provided in the humidity control ventilation device 1, 101. In addition, for example, the shape, structure and material of each dehumidification rotor 40 may be different from each other.

[0200] In the above embodiment, the sensible heat exchanger 31, the upper sensible heat exchanger 131, and the lower sensible heat exchanger 137 are described as being part of the refrigeration circuit, respectively, and the air in the shell 10 is cooled and heated by exchanging heat between the internal refrigerant and the air in the shell 10, but this is an example. Each sensible heat exchanger 31, 131, 137 may be a structure capable of at least one of cooling and heating the air. In addition, each sensible heat exchanger 31, 131, 137 is not limited to changing the temperature of the air in the shell 10 by heat exchange with the internal refrigerant. Each sensible heat exchanger 31, 131, 137 may be, for example, a heater including an electric heating wire or a cooling device including a Peltier element or the like.

[0201] In Embodiment 2, it is described that the upstream switching mechanism 160 is provided in the humidity controlling ventilator 101 instead of the first partition 15, but the structure of the humidity controlling ventilator 101 is not limited thereto. For example, in Embodiment 2, the first partition 15 may be provided instead of the upstream switching mechanism 160. In this case, when the humidity controlling ventilator 101 is in the operation mode of dehumidifying the second space, the air passing through the second suction port 12b, the second upstream space S4, the second heat exchange internal flow path 27, the lower space S2, and the second discharge port 13b flows into the second space. That is, in this case, the humidity controlling ventilator 101 circulates the air in the second space while dehumidifying, and does not ventilate.

[0202] The horizontal, plumb, vertical and other directions, various numerical values, shapes, materials and overall ranges in the above-mentioned embodiments, unless otherwise specified, include ranges that have the same effects as these directions, numerical values, shapes, materials and ranges (so-called equivalent ranges).

[0203] [Structure supported by the above-mentioned embodiment]

[0204] The above-mentioned embodiment supports the following structure.

[0205] (Note)

[0206] (Technology 1) A humidity-control ventilation device, comprising: an air supply path for causing air to flow from a first space to a second space; an exhaust path for causing air to flow from the second space to the first space; a temperature regulator disposed on the air supply path or the exhaust path for cooling or heating the air; and a plurality of cylindrical dehumidification rotors, which are disposed on the downstream side of the temperature regulator in a manner spanning the air supply path and the exhaust path, and perform adsorption dehumidification on one side of the air supply path or the exhaust path and regenerative humidification on the other side, the plurality of dehumidification rotors having their rotation axes disposed approximately horizontally and arranged in a first horizontal direction along a radial direction, the air supply path and the exhaust path are arranged in an up-and-down manner in a range from the temperature regulator to the plurality of dehumidification rotors, and the long side direction of the temperature regulator is the first direction.

[0207] Thus, the surface area of ​​the dehumidification rotor can be maintained, and the area occupied by the dehumidification rotor when viewed from above can be reduced. In addition, the direction in which the multiple dehumidification rotors are arranged is consistent with the long side direction of the temperature regulator, and the size of the humidity control ventilator in the horizontal direction becomes smaller. Therefore, the constructability of the humidity control ventilator is improved.

[0208] (Technology 2) A humidity-control ventilation device according to Technical Solution 1, comprising: a total heat exchanger, which is arranged on the upstream side of the above-mentioned temperature regulator, so that the air flowing into the above-mentioned air supply flow path and the above-mentioned exhaust flow path can exchange heat with each other; an upper drain pan that receives condensed water from the above-mentioned temperature regulator; a flow path arranged on the lower side of the above-mentioned air supply flow path or the above-mentioned exhaust flow path, and a lower drain pan that overlaps with the above-mentioned upper drain pan when viewed from above; and a conveying flow path that allows condensed water to flow from the above-mentioned upper drain pan to the above-mentioned lower drain pan, and the above-mentioned temperature regulator is arranged at The flow path on the upper side of the above-mentioned supply air flow path or the above-mentioned exhaust air flow path, the above-mentioned total heat exchanger is a quadrangular prism shape with each side surface parallel to the above-mentioned first direction and a diagonal line of the bottom surface along the horizontal direction, and the air flowing between the above-mentioned parallel side surfaces on one side flows into the above-mentioned supply air flow path, and the air flowing between the above-mentioned parallel side surfaces on the other side flows into the above-mentioned exhaust air flow path, the above-mentioned upper drain pan is arranged at the same height as the above-mentioned diagonal line, and the above-mentioned lower drain pan extends to a position overlapping with the above-mentioned total heat exchanger when viewed from above.

[0209] As a result, the upper drain pan is less likely to hinder the outflow of air in the total heat exchanger. In addition, since the lower drain pan can be enlarged by utilizing the empty space below the total heat exchanger, the amount of water that can be stored in the lower drain pan can be increased without increasing the size of the humidity control ventilator. Therefore, it is easy to store condensed water generated in the temperature regulator while maintaining the constructability of the humidity control ventilator.

[0210] (Technology 3) A humidity-control ventilation device according to Technical Solution 2, wherein the temperature regulator is arranged in a posture parallel to the side surface of the flow path located on the upper side among the side surfaces on the air outflow side of the total heat exchanger, and the upper drain pan is arranged at a position overlapping with the lower end of the temperature regulator when viewed from above, and the lower drain pan overlaps with the entirety of the upper drain pan when viewed from above.

[0211] Thus, the temperature regulator can be compactly installed. In addition, even if the conveying flow path is provided at any position of the upper drain pan, the condensed water can easily flow to the lower drain pan, and the restrictions on the position of the conveying flow path are reduced, so the upper drain pan and the lower drain pan can be compactly installed. Therefore, it is easy to store the condensed water generated in the temperature regulator while maintaining the constructability of the humidity control ventilation device.

[0212] (Technique 4) The humidity controlling ventilator according to the technical solution 2 or 3, wherein the ends of the upper drain pan and the lower drain pan on the downstream side of the air flow are arranged flush.

[0213] As a result, the upper drain pan and the lower drain pan can be brought closer to the dehumidification rotor, and the size of the humidity controlling ventilator can be reduced. Therefore, the constructability of the humidity controlling ventilator can be improved.

[0214] (Technology 5) A humidity-control ventilation device that replaces air in a first space and air in a second space, comprising: a first flow path through which air flows in from one of the first space or the second space; a second flow path through which air flows in from the other of the first space or the second space; an upper temperature regulator disposed on the first flow path; a lower temperature regulator disposed on the second flow path; and a plurality of cylindrical dehumidification rotors disposed on the downstream side of the upper temperature regulator and the lower temperature regulator in a manner straddling the first flow path and the second flow path, performing adsorption dehumidification on one of the first flow path or the second flow path and regenerative humidification on the other, the plurality of dehumidification rotors having rotation axes that are arranged approximately horizontally and arranged in a first horizontal direction along a radial direction, the second flow path being arranged below the first flow path within a range from the lower temperature regulator to the plurality of dehumidification rotors, and the upper temperature regulator and the lower temperature regulator being arranged in a vertical direction at a position that overlaps when viewed from above.

[0215] This can maintain the surface area of ​​the dehumidification rotor and reduce the area occupied by the dehumidification rotor in a plan view, so that the size of the humidity controlling ventilator in the horizontal direction can be reduced. Therefore, the constructability of the humidity controlling ventilator is improved.

[0216] (Technology 6) According to the humidity control ventilation device described in Technology 5, it includes: a total heat exchanger, which is arranged on the upstream side of the above-mentioned upper temperature regulator and the above-mentioned lower temperature regulator, so that the air flowing in from the above-mentioned first space and the above-mentioned second space can be heat exchanged; an upper drain pan for receiving condensed water from the above-mentioned upper temperature regulator; and a lower drain pan for receiving condensed water from the above-mentioned lower temperature regulator, the above-mentioned total heat exchanger is a quadrangular prism shape with each side parallel to the above-mentioned first direction and a diagonal line of the bottom along the horizontal direction, and the air from one side of the above-mentioned first space or the above-mentioned second space flows between the above-mentioned parallel side surfaces on one side and flows into the above-mentioned first flow path, and the air from the other side of the above-mentioned first space or the above-mentioned second space flows between the above-mentioned parallel side surfaces on the other side and flows into the above-mentioned second flow path, the above-mentioned upper drain pan is arranged at the same height as the above-mentioned diagonal line, and the above-mentioned lower drain pan extends to a position overlapping with the above-mentioned total heat exchanger when viewed from above.

[0217] As a result, the upper drain pan is less likely to hinder the outflow of air in the total heat exchanger. In addition, since the lower drain pan can be enlarged by utilizing the empty space below the total heat exchanger, the amount of water that can be stored in the lower drain pan can be increased without increasing the size of the humidity control ventilator. Therefore, it is easy to store condensed water generated in the temperature regulator while maintaining the constructability of the humidity control ventilator.

[0218] (Technique 7) A humidification control ventilation device according to Technique 6, wherein the upper temperature regulator is arranged in a posture parallel to the side surface of the air outflow side of the total heat exchanger located in the first flow path, the lower temperature regulator is arranged in a posture parallel to the side surface of the air outflow side of the total heat exchanger located in the second flow path, the upper drain pan is arranged in a position overlapping with the lower end of the upper temperature regulator when viewed from above, the lower drain pan overlaps with the entire lower temperature regulator when viewed from above, and the ends of the upper drain pan and the lower drain pan on the downstream side of the air flow are arranged flush.

[0219] Thus, the upper temperature regulator, the lower temperature regulator and the total heat exchanger can be compactly arranged, and the humidity control ventilator can be easily miniaturized. The upper drain pan and the lower drain pan can be placed close to the dehumidification rotor, and the size of the humidity control ventilator can be reduced.

[0220] (Technique 8) A humidity-control ventilation device as described in any one of Techniques 5 to 7, comprising: a switching mechanism, which is arranged on the downstream side of the above-mentioned multiple dehumidification rotors, and can switch between a first state in which the air of the above-mentioned first flow path flows to the above-mentioned second space and the air of the above-mentioned second flow path flows to the above-mentioned first space, and a second state in which the air of the above-mentioned first flow path flows to the above-mentioned first space and the air of the above-mentioned second flow path flows to the above-mentioned second space; and a control device for controlling the above-mentioned switching mechanism, the above-mentioned upper temperature regulator and the above-mentioned lower temperature regulator can switch between cooling action and heating action, and the above-mentioned control device switches the above-mentioned switching mechanism to the second state in an operation mode for dehumidifying the above-mentioned second space, so that the above-mentioned lower temperature regulator performs the above-mentioned cooling action and the above-mentioned upper temperature regulator performs the above-mentioned heating action.

[0221] Thus, during defrosting when a large amount of condensed water is generated by the cooling thermostat, the condensed water of the lower thermostat can be directly stored in the lower drain pan which can store a large amount of water by cooling the lower thermostat. Therefore, the size of the upper drain pan can be reduced, and the size of the humidity control ventilator can be reduced.

[0222] Industrial Applicability

[0223] The present invention can be applied to a humidity-controlling ventilator. Specifically, the present invention can be applied to a humidity-controlling ventilator for business use installed in a building or commercial facility, or a humidity-controlling ventilator for home use.

Claims

1. A humidity control ventilation device, characterized in that: include: an air supply path for allowing air to flow from the first space to the second space; an exhaust flow path for allowing air to flow from the second space to the first space; a temperature regulator disposed in the air supply passage or the exhaust passage to cool or heat the air; and A plurality of cylindrical dehumidification rotors are arranged on the downstream side of the temperature regulator in a manner spanning the air supply passage and the exhaust passage, and perform adsorption dehumidification on one of the air supply passage or the exhaust passage and regenerative humidification on the other. The plurality of dehumidification rotors are arranged with their rotation axes substantially horizontally and arranged side by side in a first horizontal direction along a radial direction. The air supply passage and the air exhaust passage are arranged vertically in a range from the temperature regulator to the plurality of dehumidification rotors. The long side direction of the temperature regulator is the first direction.

2. The humidity control ventilation device according to claim 1, characterized in that: include: a total heat exchanger disposed upstream of the temperature regulator to perform heat exchange between the air flowing into the supply air passage and the air flowing into the exhaust air passage; an upper drain pan for receiving condensation water from the temperature regulator; A flow path provided at a lower side of the air supply flow path or the air exhaust flow path, and a lower drain pan overlapping the upper drain pan in a plan view; and a conveying flow path for allowing condensation water to flow from the upper drain pan to the lower drain pan, The temperature regulator is provided in the flow path on the upper side of the air supply flow path or the exhaust flow path. The total heat exchanger is in the shape of a quadrangular prism with each side surface parallel to the first direction and a diagonal line of the bottom surface along the horizontal direction, and, The air flowing between the parallel side surfaces on one side flows into the air supply path, and the air flowing between the parallel side surfaces on the other side flows into the exhaust path. The upper drain pan is arranged at the same height as the one diagonal line, The lower drain pan extends to a position overlapping the total heat exchanger in a plan view.

3. The humidity control ventilation device according to claim 2, characterized in that: The temperature regulator is provided in a posture parallel to the side surface of the flow path located on the upper side among the side surfaces on the air outflow side of the total heat exchanger. The upper drain pan is arranged at a position overlapping with the lower end of the temperature regulator when viewed from above. The lower drain pan overlaps the entirety of the upper drain pan in a plan view.

4. The humidity control ventilation device according to claim 2 or 3, characterized in that: Ends of the upper drain pan and the lower drain pan on the downstream side of the air flow are arranged flush with each other.

5. A humidity control ventilation device for replacing air in a first space with air in a second space, characterized in that: include: a first flow path into which air flows from one of the first space or the second space; a second flow path into which air flows from the other of the first space or the second space; an upper temperature regulator disposed on the first flow path; a lower temperature regulator provided in the second flow path; and A plurality of cylindrical dehumidification rotors are arranged on the downstream side of the upper temperature regulator and the lower temperature regulator in a manner spanning the first flow path and the second flow path, and perform adsorption dehumidification on one of the first flow path or the second flow path and regenerative humidification on the other. The plurality of dehumidification rotors are arranged with their rotation axes substantially horizontally and arranged side by side in a first horizontal direction along a radial direction. The second flow path is arranged below the first flow path in a range from the lower temperature regulator to the plurality of dehumidification rotors. The upper temperature regulator and the lower temperature regulator are arranged side by side in the vertical direction at positions where they overlap when viewed from above.

6. The humidity control ventilation device according to claim 5, characterized in that: include: a total heat exchanger disposed upstream of the upper temperature regulator and the lower temperature regulator to perform heat exchange between the air flowing in from the first space and the air flowing in from the second space; an upper drain pan receiving condensed water from the upper temperature regulator; and A lower drain pan receiving condensation water from the lower temperature regulator, The total heat exchanger is in the shape of a quadrangular prism with each side surface parallel to the first direction and a diagonal line of the bottom surface along the horizontal direction, and, air from one of the first space or the second space flows between the parallel side surfaces on one side and flows into the first flow path, and air from the other of the first space or the second space flows between the parallel side surfaces on the other side and flows into the second flow path, The upper drain pan is arranged at the same height as the one diagonal line, The lower drain pan extends to a position overlapping the total heat exchanger in a plan view.

7. The humidity control ventilation device according to claim 6, characterized in that: The upper temperature regulator is provided in a posture parallel to the side surface located in the first flow path among the side surfaces on the air outflow side of the total heat exchanger. The lower temperature regulator is provided in a posture parallel to the side surface located in the second flow path among the side surfaces on the air outflow side of the total heat exchanger. The upper drain pan is disposed at a position overlapping with the lower end of the upper temperature regulator in a plan view. The lower drain pan overlaps the entire lower temperature regulator when viewed from above. Ends of the upper drain pan and the lower drain pan on the downstream side of the air flow are arranged flush with each other.

8. The humidity controlling ventilator according to any one of claims 5 to 7, characterized in that: include: a switching mechanism disposed on the downstream side of the plurality of dehumidification rotors, capable of switching between a first state in which the air of the first flow path flows to the second space and the air of the second flow path flows to the first space and a second state in which the air of the first flow path flows to the first space and the air of the second flow path flows to the second space; and a control device for controlling the switching mechanism, The upper temperature regulator and the lower temperature regulator can switch between cooling action and heating action. In an operation mode for dehumidifying the second space, the control device switches the switching mechanism to a second state to cause the lower temperature regulator to perform the cooling operation and causes the upper temperature regulator to perform the heating operation.

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