dehumidifier

Abstract

We provide dehumidifiers with high dehumidification efficiency. [Solution] The system comprises a desiccant rotor for dehumidifying indoor air 2a, a first fan that draws indoor air 2a into the desiccant rotor and sucks in and blows out the dehumidified air removed by the desiccant rotor, a second fan 20 that sucks in indoor air 2k and the dehumidified air 2i and 2j blown out by the first fan and blows them into the room, and an outer case 10 that houses the first fan, the desiccant rotor and the second fan 20 and has a common intake 12 for taking in indoor air 2a that is drawn in by the first fan and the second fan 20, and an outlet 13 for the air blown out by the second fan 20, wherein the common intake 12 and the first fan and the second fan 20 are spatially connected within the outer case 10.

Description

Technical Field

[0001] The present invention relates to a dehumidifier.

Background Art

[0002] Conventionally, for example, a dehumidifier that sucks in and dehumidifies humid air in a room for the purpose of drying clothes and blows it out after drying is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Recently, it has become difficult to secure sufficient space for drying laundry, and due to privacy concerns and the impact of air pollution, the need for indoor drying rather than outdoor drying has been increasing. Along with this, the need for a dehumidifier that can dry efficiently has also been increasing.

[0005] The present invention has been made in consideration of such circumstances, and an object thereof is to provide a dehumidifier with high dehumidification efficiency.

Means for Solving the Problems

[0006] To solve the above-mentioned problems, the dehumidifier according to the present invention comprises a desiccant rotor for dehumidifying indoor air, a first fan that draws indoor air into the desiccant rotor and sucks in and blows out the dehumidified air removed by the desiccant rotor, a second fan that sucks in indoor air and the dehumidified air blown out by the first fan and blows it back into the room, and an outer case that houses the first fan, the desiccant rotor, and the second fan, and has a common intake for taking in indoor air drawn in by the first and second fans, and an outlet for the air blown out by the second fan, wherein the common intake, the first fan and the second fan are spatially connected within the outer case. [Effects of the Invention]

[0007] The dehumidifier according to the present invention can achieve high dehumidification efficiency. [Brief explanation of the drawing]

[0008] [Figure 1] External perspective view of the dehumidifier in this embodiment. [Figure 2] Disassembled perspective view of a dehumidifier. [Figure 3] A perspective view of the dehumidification unit from the front, with the front panel removed. [Figure 4] Figure 3 shows the front view with the fan retainer and connecting air duct removed. [Figure 5] A view of the dehumidification unit from the rear. [Figure 6] A plan view of a dehumidifier to illustrate airflow. [Figure 7] A perspective view of a dehumidifier seen from the front, illustrating the airflow. [Figure 8] Front view of a modified dehumidification unit, corresponding to Figure 4. [Modes for carrying out the invention]

[0009] An embodiment of the dehumidifier according to the present invention will be described based on the attached drawings.

[0010] In the following description, "front", "rear", "top", "bottom", "right", and "left" follow the definitions in FIGS. 1 to 8.

[0011] In the present embodiment, an example in which a dehumidifier according to the present invention is a dehumidifier installed on a wall will be described. The dehumidifier is installed and used on the inner wall surface of a room (dehumidification target chamber) such as a house that requires dehumidification, for example, and is installed above.

[0012] FIG. 1 is an external perspective view of the dehumidifier 1 in the present embodiment. FIG. 2 is an exploded perspective view of the dehumidifier 1. FIG. 3 is a perspective view of the dehumidification unit 30 with the front plate 64 removed, viewed from the front.

[0013] The dehumidifier 1 includes an outer case 10, a circulation fan 20, a dehumidification unit 30, a distribution path 80, and a substrate unit 90.

[0014] The outer case 10 forms the outer shell of the dehumidifier 1 and has a horizontally long rectangular parallelepiped shape. The outer case 10 houses the dehumidification unit 30 (the sirocco fan 31 and the desiccant rotor 35) and the circulation fan 20. The outer case 10 includes a front panel 11, a rear panel 15, and a louver 18.

[0015] The front panel 11 forms the front surface 1a, the left and right side surfaces 1b, the upper surface 1c, and the bottom surface 1d of the dehumidifier 1. The left and right side surfaces 1b have common inlets 12 at positions that are substantially left-right symmetric. A filter is disposed inside each common inlet 12, and indoor air 2a (FIG. 6) that is sucked into the sirocco fan 31 and the circulation fan 20 of the dehumidification unit 30 is taken into the outer case 10. The front panel 11 has an air outlet 13 that extends in the left-right direction at the front lower part.

[0016] The rear panel 15 forms the rear surface 1e of the dehumidifier 1. The rear panel 15 has an exhaust port 16 in the upper right for exhausting the high-temperature and high-humidity air 2g exhausted from the regeneration region 38 (FIG. 5) of the desiccant rotor 35.

[0017] The louver 18 is disposed at the air outlet 13 of the front panel 11. The louver 18 has a plurality of louver blades 19, and by swinging the louver blades 19 left and right, the delivery direction of the air 2i, 2j, 2k (Fig. 6) is controlled left and right.

[0018] The circulation fan 20 (second fan) is a cross-flow fan having a suction port 21 and a blowout port 22 (Fig. 7) extending along the left-right direction (the arrangement direction of the sirocco fan 31 and the desiccant rotor 35). The circulation fan 20 sucks in the indoor air 2a from the common intake port 12 and blows it out, thereby circulating the indoor air. Further, the circulation fan 20 sucks in the dehumidified air 2i, 2j from the distribution passage 80 blown out by the sirocco fan 31 and blows it out, thereby sending the dehumidified air 2i, 2j into the room with a sufficient air volume. The circulation fan 20 is disposed downstream of the dehumidified air 2i, 2j blown out from the dehumidification unit 30 and in front of the dehumidification unit 30.

[0019] The circulation fan 20 is supported below the front surface by a fan cover 27 together with a motor 25 for rotating the fan and a bearing 26, and is disposed in the outer case 10 (Fig. 7). The fan cover 27 has a scroll tongue portion 27a (stabilizer) that is close to and faces the circulation fan 20.

[0020] The dehumidification unit 30 is a unitized device that takes in the air 2b (Fig. 6) taken in from the room through the common intake port 12 as dehumidified air and blows out this dehumidified air to the circulation fan 20. That is, the dehumidification unit 30 performs air suction and blowing within the outer case 10. The dehumidification unit 30 has a sirocco fan 31, a desiccant rotor 35, a heater unit 41, and a casing 50.

[0021] Here, Fig. 4 is a front view of the dehumidification unit 30 of Fig. 3 with the fan pressing portion 62 and the connecting air passage 69 of the partition plate 61 removed. Fig. 5 is a view of the dehumidification unit 30 seen from the rear.

[0022] In this embodiment, the sirocco fan 31 (first fan) rotates counterclockwise when viewed from the front, drawing indoor air 2a into the casing 50 through the common intake 12 of the outer case 10. The sirocco fan 31 also draws in dehumidified air 2c, which has been dehumidified by the desiccant rotor 35, and blows it out of the casing 50.

[0023] The desiccant rotor 35 dehumidifies the air 2b taken into the casing 50. In this embodiment, the desiccant rotor 35 is rotated counterclockwise in a front view by the motor 35c so as to pass sequentially through the dehumidification region 37, the regeneration region 38, and the purging region 39 shown in Figure 5.

[0024] The dehumidification region 37 is the region where the passing air 2b is dehumidified, and it is located on the rear surface 35b side of the desiccant rotor 35, corresponding to the region where the air intake 65 formed in the casing 50 is located, and in Figure 5 it is the region formed in the range from approximately 2 o'clock to 10 o'clock. The regeneration region 38 is the region where heated air 2f (Figure 6) is passed through to regenerate the dehumidification capacity of the desiccant rotor 35. The regeneration region 38 is the region formed in the range from approximately 10 o'clock to 12 o'clock. The purging region 39 is the region between the regeneration region 38 and the dehumidification region 37. Since the purging region 39 is the region that the desiccant rotor 35 reaches after the regeneration region 38, it is the region through which the desiccant rotor 35 passes in a high-temperature state. Therefore, in the purging region 39, the desiccant rotor 35 is allowed to pass relatively low-temperature room air 2b through, thereby lowering the temperature of the desiccant rotor 35 before it reaches the dehumidification region 37.

[0025] The heater unit 41 is located on the front 35a side of the desiccant rotor 35 and is positioned in the regeneration region 38. The heater unit 41 includes a heater 42 and a heater case 43. The heater 42 raises the air 2e passing through it to a temperature (e.g., about 100 degrees Celsius) that allows for the regeneration of the dehumidification capacity of the desiccant rotor 35, thereby generating heated air 2f. The heater case 43 houses and covers the heater 42. The heater case 43 has a case inlet 43a and a case outlet 43b. The case inlet 43a is connected to the heater outlet 75 of the connecting air passage 69 and takes in air 2e into the heater case 43. The case outlet 43b is an opening facing the front 35a of the desiccant rotor 35 and discharges the heated air 2f generated by the heater 42 to the desiccant rotor 35.

[0026] The casing 50 houses and supports the sirocco fan 31, the desiccant rotor 35, and the heater unit 41. The casing 50 houses the sirocco fan 31 and the desiccant rotor 35 side by side, arranged so that they do not overlap in the front-to-back direction, with the rotation axis 32 of the sirocco fan 31 and the rotation axis 36 of the desiccant rotor 35 being parallel, as shown in Figure 6.

[0027] The casing 50 includes a rear plate 51, a partition plate 61, a front plate 64, a heater rear plate 67, and a connecting air passage 69.

[0028] The rear plate 51 has a shape that primarily accommodates the sirocco fan 31 in a rotatable manner. The rear plate 51 accommodates the sirocco fan 31 such that the surface that serves as the intake port 33 of the sirocco fan 31 faces forward. The rear plate 51 also functions as an air passage that guides the dehumidified air 2h blown out from the sirocco fan 31 from the sirocco fan 31 to the circulation fan 20. Furthermore, the rear plate 51 also functions as an air passage that guides the dehumidified air 2e blown out from the sirocco fan 31 from the sirocco fan 31 to the heater 42 (heater unit 41).

[0029] As shown in Figure 4, the rear plate 51 straightens the dehumidified air 2d blown out from the sirocco fan 31 on its inner wall surface 52 and guides it to the upper opening 53. The opening 53 is located above the dehumidification unit 30 and is positioned approximately in the center in the left-right direction (between the sirocco fan 31 and the desiccant rotor 35) and extends to the left.

[0030] The rear panel 51 has a partition wall 54, a main air outlet 55, and a heater air outlet 56. The main air outlet 55 is located above the rear panel 51, extending from approximately the center to the right in the left-right direction, and blows out dehumidified air 2h which is supplied to the room via the circulation fan 20. The heater air outlet 56 is located above the rear panel 51, to the right of the main air outlet 55, and blows out dehumidified air 2e which is heated by the heater 42 and used to generate heated air 2f for regenerating the desiccant rotor 35. The partition wall 54 separates the main air outlet 55 and the heater air outlet 56. The partition wall 54 partitions the upper opening 53, forming the main air outlet 55 and the heater air outlet 56.

[0031] The partition plate 61 has a fan retaining portion 62 located on the left and a rotor housing portion 63 located on the right.

[0032] The fan retainer 62 covers the sirocco fan 31 housed in the rear plate 51 from the front, supporting the sirocco fan 31 within the casing 50. Together with the rear plate 51, the fan retainer 62 forms a closed space for the dehumidified air 2d blown out from the outlet 34 of the sirocco fan 31. As a result, the fan retainer 62, together with the rear plate 51 described above, functions as an air passage for the dehumidified air 2d blown out from the sirocco fan 31.

[0033] The rotor housing 63 has a shape that allows the desiccant rotor 35 to be rotatably housed. As a result, the intake port 33 (intake surface) of the sirocco fan 31 and the front surface 35a from which the desiccant rotor 35 sends out dehumidified air 2c face the same direction. The rotor housing 63 houses the desiccant rotor 35 by forming an intake port 65 so that the desiccant rotor 35 dehumidifies the air 2b flowing from rear to front. That is, a part of the rear surface 35b of the desiccant rotor 35 is exposed. As a result, the desiccant rotor 35 draws in room air 2b through the intake port 65, which serves as a casing intake port, and discharges heated air 2g that has passed through the regeneration region 38.

[0034] The front plate 64 covers the sirocco fan 31 and the desiccant rotor 35 from the front. The front plate 64 also supports the heater 42, which is located in the regeneration area 38 of the desiccant rotor 35, together with the partition plate 61. The front plate 64 is in close contact with the partition plate 61 without any gaps, forming a closed space between the required area of ​​the sirocco fan 31 and the desiccant rotor 35. As a result, the front plate 64 also functions as an air passage that guides the dehumidified air 2c sent out from the desiccant rotor 35 to the sirocco fan 31. The front plate 64 also surrounds the circulation fan 20 together with the scroll tongue 27a and has a scroll wall surface 64a that rectifies the airflow of the blown-out air.

[0035] The heater rear plate 67 is located in the regeneration region 38, between the rotor housing 63 and the desiccant rotor 35. The heater rear plate 67 has a duct 68 for exhausting the hot, humid air 2g that has passed through the desiccant rotor 35 in the regeneration region 38. The duct 68 is exposed from the exhaust port 16 of the rear panel 15 and is connected to an exhaust pipe (not shown). The exhaust pipe penetrates the wall of the dehumidified chamber, with one end extending to the outside, and exhausts the air 2g to the outside.

[0036] The connecting air passage 69 is located above the front front of the rear plate 51 and the partition plate 61, and is an air passage that connects the main outlet 55 and the distribution passage 80, and the heater outlet 56 and the case inlet 43a, and guides dehumidified air 2e and 2h. The connecting air passage 69 has an inlet 72 connected to the main outlet 55, an inlet 73 connected to the heater outlet 56, a distribution passage outlet 74 (casing outlet) connected to the inlet 81 of the distribution passage 80, and a heater outlet 75 connected to the case inlet 43a of the heater case 43.

[0037] As a result, the connecting air passage 69 (casing 50) becomes an air passage that supplies dehumidified air 2e, which is part of the dehumidified air blown out by the sirocco fan 31, to the heater unit 41 (heater 42), and an air passage that supplies the remaining dehumidified air 2h to the circulation fan 20 via the distribution passage 80.

[0038] The distribution path 80 distributes the dehumidified air 2h, which is blown out through the main outlet 55 and connecting air passage 69 of the rear plate 51, into dehumidified air 2i and 2j, and guides them to approximately uniform positions on the left and right ends 20a of the circulation fan 20, symmetrically with respect to the center in the left-right direction. The distribution path 80 is located on the upper front of the rear plate 51 and has one inlet 81 connected to the distribution path outlet 74 of the connecting air passage 69, and two outlets 82 that branch off to the left and right from there and face the intake port 21 at the left and right ends 20a of the circulation fan 20.

[0039] The circuit board unit 90 is a circuit board and case that houses the circuit board, which electrically controls various parts within the dehumidifier 1. The circuit board unit 90 is located in a predetermined position within the outer case 10, for example, in the upper right, as shown in Figure 2.

[0040] Next, the airflow of the dehumidifier 1 will be explained. Figure 6 is a plan view of the dehumidifier 1 to illustrate the airflow. Figure 7 is a perspective view of the dehumidifier 1 from the front to illustrate the airflow. Note that in Figure 6, the rear plate 51 is omitted for illustrative purposes.

[0041] Indoor air 2a is drawn in through common intake ports 12 located on the left and right sides 1b of the outer case 10. At this time, indoor air 2a is drawn in by a circulation fan 20 and a sirocco fan 31, but the interior of the outer case 10 where the circulation fan 20 and the sirocco fan 31 are located is spatially connected. That is, the air passages from the common intake port 12 to the intake ports 21 and 33 of the circulation fan 20 and the sirocco fan 31 (intake port 65, which is the intake port to the dehumidification unit 30) are not independent, and the intake ports 21 and 33 of the circulation fan 20 and the sirocco fan 31 are located in a continuous space. Therefore, the intake air volume of one does not affect the intake air volume of the other, and air can be drawn in and blown out at an appropriate air volume for each. As a result, the circulation fan 20 and the sirocco fan 31 can blow out an air volume corresponding to their respective rotation speeds. Furthermore, even if the rotation speed of one is changed and the air volume changes, it does not affect the air volume of the other.

[0042] The indoor air 2b drawn into the sirocco fan 31 passes through the intake 65 (casing intake) of the partition plate 61, through the dehumidification region 37 and the purge region 39 of the desiccant rotor 35 from the rear 35b to the front 35a. The indoor air 2b passing through the dehumidification region 37 is dehumidified by the desiccant rotor 35 and becomes dehumidified air 2c (Figures 3 and 4). The dehumidified air 2c is drawn into the intake 33 of the sirocco fan 31, which faces the same direction as the front 35a of the desiccant rotor 35. At this time, the front plate 64 of the casing 50 becomes an air passage that guides the dehumidified air 2c to the intake 33.

[0043] The dehumidified air 2c is blown out from the sirocco fan 31 as dehumidified air 2d, and is directed upward while being rectified along the inner wall surface 52 of the rear plate 51. The dehumidified air 2d is branched by the partition wall 54, with some of the dehumidified air 2h directed towards the main outlet 55, and the remaining dehumidified air 2e directed towards the heater outlet 56.

[0044] As shown in Figure 6, the dehumidified air 2e blown out from the heater outlet 56 passes through the connecting air passage 69 and is guided to the heater unit 41. The dehumidified air 2e is heated by the heater 42 in the heater unit 41 to become heated air 2f, which passes through the desiccant rotor 35 from the front 35a to the rear 35b in the regeneration region 38 of the desiccant rotor 35, regenerating the dehumidification capacity of the desiccant rotor 35. The air 2g that has passed through the desiccant rotor 35 is exhausted to the outside of the dehumidifier 1 via the duct 68 of the heater rear plate 67.

[0045] The dehumidified air 2h blown out from the main outlet 55 is guided through the connecting air passage 69 to the distribution passage outlet 74 (casing outlet) and then to the distribution passage 80. The dehumidified air 2h is divided into dehumidified air 2i and 2j and flows through the distribution passage 80 to the left and right. When the dehumidified air 2i and 2j reach the outlet 82 located near the intake port 21 of the circulation fan 20, they are each drawn into the intake port 21 and blown out from the outlet 22.

[0046] In parallel, of the air 2a taken into the outer case 10 from the common intake 12, the indoor air 2k that is drawn in by the circulation fan 20 is drawn in from the intake ports 21 that extend from left to right on the circulation fan 20 and blown out from the outlet 22.

[0047] The dehumidified air 2i, 2j and the indoor air 2k are mixed by the circulation fan 20, and their direction of discharge is controlled by the louvers 18 before being blown into the room from the outlet 13 of the outer case 10.

[0048] In this embodiment of the dehumidifier 1, a sirocco fan 31 and a circulation fan 20, which are spatially connected to each other, draw in indoor air 2a from a common intake 12. As a result, the sirocco fan 31 can draw in indoor air 2b without being affected by the intake airflow of the circulation fan 20, which increases the airflow of the dehumidification unit 30 that it draws in and dehumidifies, thereby improving dehumidification efficiency.

[0049] Furthermore, the circulation fan 20 not only circulates the indoor air but also functions to blow the dehumidified air 2i and 2j from the dehumidification unit 30 into the room. As a result, the circulation fan 20 blows out the dehumidified air 2i and 2j from the dehumidification unit 30 with a large airflow, thus improving dehumidification efficiency.

[0050] Furthermore, an air passage is provided from the sirocco fan 31 to the heater unit 41 so that the heated air 2f for regenerating the desiccant rotor 35 is supplied by a portion of the dehumidified air 2d blown out by the sirocco fan 31. This eliminates the need for a separate fan for the heated air 2f and the air passage from that fan to the heater unit 41, thereby suppressing an increase in the number of parts and enabling miniaturization of the dehumidifier 1. In addition, this air passage is provided inside the dehumidification unit 30 using the structure of the casing 50. This makes it possible to further miniaturize the dehumidifier 1.

[0051] Furthermore, the dehumidifier 1 has common intake ports 12 on the left and right sides 1b of the casing 50, and the circulation fan 20 is positioned in front of the dehumidification unit 30 (casing 50). In particular, the dehumidification unit 30 houses the sirocco fan 31 and the desiccant rotor 35 side by side in the left-right direction within the casing 50, such that the rotation axis 32 of the sirocco fan 31 and the rotation axis 36 of the desiccant rotor 35 are parallel. This makes the dehumidification unit 30 even thinner in the front-to-back direction compared to when the sirocco fan 31 and the desiccant rotor 35 are positioned with their rotation axes 32 and 36 aligned in the front-to-back direction. When the dehumidifier 1 is mounted on a wall, the thickness from the wall can be reduced in particular. Such a dehumidifier 1 can suppress a feeling of oppression and weight, and is a suitable structure when mounted on a wall.

[0052] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the claims. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents.

[0053] For example, the arrangement of the sirocco fan 31 and desiccant rotor 35 within the casing 50, the direction of rotation, the position and structure of the airflow path, and the resulting shape of the casing 50 are examples only and are not limited to the examples described above. For example, Figure 8 shows a modified dehumidification unit 30, which corresponds to Figure 4. The difference between the modified dehumidification unit 30 and the dehumidification unit 30 in Figure 4 is that the airflow paths for the dehumidified air 2e and 2h blown out from the sirocco fan 31 formed by the rear plate 51 are formed to be symmetrical with respect to the airflow paths of the dehumidification unit 30 in Figure 4.

[0054] Thus, as long as it is possible to take in indoor air into the dehumidification unit and blow out dehumidified air, the unit may have any shape and any arrangement of the sirocco fan and desiccant rotor. For example, the common intake 12 is not limited to the left and right sides 1b, but may also be located on the top surface 1c. Furthermore, as long as the rotation axis of the sirocco fan and the rotation axis of the desiccant rotor do not coincide, they may be arranged so that their rotation axes are at an angle to each other, rather than parallel.

[0055] The example described uses a centrifugal fan as the first fan, but other types of fans, such as turbofans, may also be used. The example described uses a cross-flow fan as the second fan, but a propeller fan may also be used.

[0056] Furthermore, when arranging a sirocco fan and a desiccant rotor side-by-side so that their rotation axes are parallel, the sirocco fan and desiccant rotor may be slightly offset in the front-to-back direction. For example, as long as they are side-by-side and not overlapping in the left-to-right direction, they may be offset in the front-to-back direction.

[0057] The dehumidifier 1 may omit the connecting air passage 69. In that case, the main outlet 55 becomes the casing outlet instead of the distribution outlet 74. [Explanation of Symbols]

[0058] 1 dehumidifier 10 outer cases 11 Front Panel 12 Common intake 13 Air outlet 15 Rear Panel 18 Louvers 20. Circulating fan (second fan) 20a Left and right ends 30 Dehumidifying Units 31 Sirocco fan (first fan) 32, 36 Rotation axis 35 Desiccant Rotor 37 Dehumidification area 38 Play area 39 Purge Area 41 Heater Unit 50 casing 51 Rear plate 61 Partition Plate 62 Fan retaining part 63 Rotor housing 64 Front panel 67 Heater rear panel 69 Connecting air passage 80 distribution path 90 circuit board units

Claims

1. A desiccant rotor that dehumidifies the indoor air, A first fan draws in the room air into the desiccant rotor, and sucks in and blows out the dehumidified air removed by the desiccant rotor. A second fan that draws in the room air and the dehumidified air blown out by the first fan and blows it back into the room, The system comprises an outer case that houses the first fan, the desiccant rotor, and the second fan, and has a common intake for taking in the air from the room that is drawn in by the first fan and the second fan, and an outlet for the air that the second fan blows out. A dehumidifier in which the common intake, the first fan, and the second fan are spatially connected within the outer case.

2. The casing further comprises a casing that houses the first fan and the desiccant rotor, and has a casing intake port for drawing in the air from the room, and a casing outlet for blowing the dehumidified air to the second fan, The dehumidifier according to claim 1, wherein the casing intake port and the casing outlet port are located inside the outer case.

3. The casing further comprises a heater that generates heated air to regenerate the desiccant rotor, The dehumidifier according to claim 2, wherein the casing has an air passage that supplies a portion of the dehumidified air blown out by the first fan to the heater.

4. The dehumidifier according to claim 2, wherein the casing houses the first fan and the desiccant rotor arranged side by side in the left-right direction such that the rotation axis of the first fan and the rotation axis of the desiccant rotor are parallel.

5. The aforementioned dehumidifier is mounted on the wall. The aforementioned outer case has the common intake on the left and right sides or the top, and the air outlet on the front, The dehumidifier according to claim 3 or 4, wherein the second fan is positioned in front of the casing.

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