JP3856238B1 - Bathroom dryer with dehumidifying function - Google Patents

Abstract

An object of the present invention is to make a bathroom dryer compact without reducing the dehumidifying capacity of the bathroom dryer.
A dehumidification rotor 10 is mounted horizontally, the rotation axes of both the circulation fan 20 and the dehumidification rotor 10 are perpendicular to the surface of the dehumidification rotor 10, and the bathroom dryer 1 is viewed from directly above or directly below. The circulation fan 20 is disposed above the dehumidification rotor 10 at a certain effective distance so that the planar view range of the circulation fan 20 in this case overlaps with the planar view range of the dehumidification rotor 10.
[Selection] Figure 7

Description

  The present invention relates to a bathroom dryer.

  For example, a bathroom dryer disclosed in FIG. 8 of JP-A-2005-195290 is known. The bathroom dryer is provided with a fan 14 that sucks up air in the bathroom and a rotating disk-shaped dehumidifying rotor (desiccant element 55). In this bathroom dryer, moisture in the air sent from the fan 14 is adsorbed below the dehumidification rotor, and when the dehumidification rotor rotates and reaches the upper position on the exhaust port 11 side, the adsorbed moisture is absorbed. The dehumidification is performed by the regenerative heater (drying heater 57), and the exhaust is discharged from the exhaust port 11.

  Further, for example, a bathroom dryer disclosed in FIGS. 18 to 27 of JP-A-2004-93008 is also known. This bathroom dryer is equipped with a disk-shaped dehumidification rotor (adsorbent 33), and the air that is sucked into the bathroom dryer and returned to the bathroom passes through the dehumidification rotor so that the bathroom can be dehumidified. It can be done.

JP-A-2005-195290 (paragraphs 57 to 58 and FIG. 8) Japanese Patent Laying-Open No. 2004-93008 (paragraphs 115 to 141 and FIGS. 18 to 27)

  However, in the bathroom dryer of Patent Document 1, the dehumidification rotor is arranged in parallel on the side of the circulation fan 14. For this reason, there exists a problem that a bathroom dryer will become a big size especially in a horizontal direction.

  Moreover, in the bathroom dryer of this patent document 1, since the dehumidification rotor is inclined and mounted, it is effective in terms of horizontal size suppression. However, due to the structure of the dehumidification rotor, foreign matters (for example, dust and dust) contained in the moisture are also adsorbed when moisture is adsorbed, and if arranged in this manner, it may remain as it is without dropping. In addition to causing dirt and mold, there is a problem that the passage of the worst dehumidifying rotor is clogged.

  On the other hand, in the bathroom dryer of Patent Document 2, whether the problem of Patent Document 1 is solved by the dehumidification rotor being installed below the circulation fan 111 and the dehumidification rotor being installed horizontally. looks like.

  However, in the bathroom dryer of Patent Document 2, the circulation fan cannot be said to be sufficient from the viewpoint that the rotating shaft is horizontally arranged to make the bathroom dryer compact.

  Accordingly, an object of the present invention is to make the bathroom dryer compact without causing a decrease in the dehumidifying capacity of the bathroom dryer.

  Further objects of the present invention will become clear from the following description.

The bathroom dryer that can be installed behind the ceiling of the bathroom includes a dryer body that is the body of the bathroom dryer, and a main body suction that is provided at the bottom of the dryer body and serves as an air inlet for the bathroom. Dehumidifier, a main body outlet provided as an air outlet to the bathroom, an air outlet provided in the dryer main body, an air passage sucked from the main inlet and blown out from the main outlet A rotor, a circulation fan, a regeneration heater, and a regeneration air passage are provided. The dehumidification rotor has a plurality of air passages configured to allow air to pass from the lower surface to the upper surface, and removes moisture in the air passing through each air passage. The circulation fan is a centrifugal fan that is provided in the circulation air passage and sucks air in the bathroom from the main body suction port through the dehumidification rotor and blows it out from the main body outlet to the bathroom through the circulation air passage. The regenerative heater heats the air flowing in from the main body suction port, and the heated air passes through the dehumidification rotor, thereby releasing moisture contained in the dehumidification rotor. The regeneration air passage is an air passage for flowing humid air containing moisture released from the dehumidification rotor to the outside of the bathroom.

In this bathroom dryer, the circulation fan and the dehumidifying rotor are arranged so as to overlap in a plan view when the bathroom dryer is viewed from directly above or directly below, and the rotation shafts as the respective rotation centers are arranged, Both are arranged so as to be perpendicular to the surface of the dehumidification rotor, the dehumidification rotor is arranged so that the upper surface and the lower surface of the dehumidification rotor are horizontal, and the circulation fan is disposed above the dehumidification rotor. The regenerative heater is disposed at a predetermined position below the lower surface of the dehumidifying rotor, and the inlet of the regenerative air path is generated by separating the circulation fan and the dehumidifying rotor by an effective distance. Is provided in such a manner that a part of the upper surface side of the dehumidification rotor is partitioned at a position facing the regenerative heater via the dehumidification rotor, in a plan view range of the inlet of the regeneration air passage, Downstream portion of the rotational direction of the humidification rotor has spread in the downstream direction than the downstream portion of the rotational direction in the plan view the range of reproduction heater.

  That is, in this bathroom dryer, the circulation fan and the dehumidification rotor are arranged so as to be superposed in the vertical direction (in other words, the height direction) of the bathroom dryer. Both the circulation fan and the dehumidifying rotor are mounted horizontally such that the rotation axis is perpendicular to the surface of the dehumidifying rotor. When the dehumidification rotor is leveled under such a structure (hereinafter referred to as “two-story structure” for convenience), foreign matter in the air is attached to the air passage (for example, a hole in the honeycomb structure) in the dehumidification rotor. However, due to gravity, foreign matter attached to the air path of the dehumidification rotor can fall, and therefore it can be prevented from remaining as it is, causing dirt and mold, or clogging the air path. it can.

  Moreover, in this invention, it can prevent that the size of the horizontal direction of a dryer main body will become large by setting it as a two-story structure.

  In the case of a two-story structure, the idea that it would be desirable to bring the circulation fan and the dehumidification rotor as close as possible in order to reduce the size of the dryer body in the height direction as much as possible emerged. As a result of mistakes, it has been found that it is preferable to keep the circulation fan and the dehumidification rotor not too close and to separate a certain effective distance. If the circulation fan and the dehumidification rotor are brought too close together, the circulation fan cannot sufficiently suck up air through the dehumidification rotor. The reason for this is that when the centrifugal fan is mounted above the dehumidification rotor with the rotating shafts of both the circulation fan and the dehumidification rotor perpendicular to the surface of the dehumidification rotor, the structure of the centrifugal fan In addition, since the suction is performed at the center, air that has passed through the vicinity of the periphery of the dehumidification rotor is sucked through a route that is concentrated on the center side. Therefore, when the distance between the circulation fan and the dehumidification rotor is short, the suction efficiency (particularly, the suction efficiency at the peripheral edge of the dehumidification rotor) is deteriorated, and the dehumidification function of the entire dehumidification rotor cannot be effectively used and the dehumidification performance is deteriorated. Another problem will arise.

  For this reason, the circulation fan and the dehumidification rotor can provide the bathroom dryer excellent in compactness, without reducing a dehumidification performance by setting the effective distance in a height direction.

  The dehumidifying rotor has a lower dehumidifying capacity as the moisture is adsorbed. However, in order to continuously use the dehumidifying rotor without replacing it, it is necessary to regenerate the reduced dehumidifying capacity. In this embodiment, in order to regenerate the dehumidification capability, the dehumidifier is provided with a regenerative heater and a regenerative air passage, and the regenerator is regenerated in a space generated by separating the circulation fan and the dehumidification rotor by a certain effective distance. The entrance portion of the air passage is arranged. As a result, the space inevitably generated between the circulation fan and the dehumidifying rotor can be used effectively, so that the bathroom dryer can be made compact while enabling the regeneration of the dehumidifying capacity.

  The humid air that comes out of the dehumidification rotor by the regenerative heater is air that is thrown out of the bathroom. For this reason, in order to return as much air as possible in the bathroom, the inlet of the regenerative air passage is in a plan view range that matches the plan view range of the regenerative heater and is brought into contact with the upper surface of the dehumidification rotor. Is considered to be ideal.

  However, since the dehumidification rotor is a rotating member, the inlet of the regeneration air passage cannot be brought into contact with the dehumidification rotor, and a gap is absolutely required between the dehumidification rotor and the inlet of the regeneration air passage.

  Since the dehumidification rotor rotates as described above, if the inlet of the regeneration air passage is set to a planar view range that matches the planar view range of the regeneration heater, it is heated by the regeneration heater and becomes humid air. In some cases, the place where the humid air comes out does not exist directly under the entrance of the regeneration air passage. Further, according to the two-story structure as described above, the air coming out of the dehumidifying rotor is sucked to the rotating shaft side of the circulation fan, so that the inlet of the regeneration air passage is in plan view so as to coincide with the plan view range of the regeneration heater. If it is within the range, it may not be possible to supplement the air sucked into the rotating shaft side of the circulation fan.

  From the above, there is a risk that the humid air that should enter the regeneration air path does not enter the regeneration air path but is sucked by the circulation fan and exits to the bathroom through the circulation air path.

For this reason , the downstream portion in the rotational direction of the dehumidification rotor in the planar view range of the inlet of the regeneration air passage is expanded more downstream than the downstream portion in the rotational direction in the planar view range of the regeneration heater. As a result, the location where the dehumidification rotor is heated by the regenerative heater and becomes humid air is more in the direction of rotation than the plan view range of the regenerative heater as the dehumidification rotor rotates. Even if it is located on the downstream side, the humid air that comes out from that position can enter, so that the humid air can be prevented from flowing into the bathroom.

In a preferred embodiment of claim 2 , the rotational direction of the dehumidification rotor in the planar view range of the inlet of the regeneration air path is higher than the upstream portion in the rotational direction of the dehumidification rotor in the planar view range of the inlet of the regeneration air path. The downstream portion is wider than the plan view range of the regenerative heater.

  Considering the rotation of the dehumidifying rotor, it is considered that more humid air is produced in the downstream portion than in the upstream portion in the rotation direction, as compared with the planar view range of the regenerative heater. In order to reliably capture the humid air, a method of widening the planar view range of the inlet of the regenerative air passage is conceivable as much as possible. However, the preferable dehumidified air also flows into the regeneration air passage, leading to a decrease in the dehumidifying capacity.

According to a preferred embodiment of claim 2, the upstream portion and the downstream portion in the plan view range of the inlet of the regeneration air passage are not evenly spread, but the downstream portion is made to be more than the upstream portion. I try to expand it. Accordingly, it is possible to prevent the humid air from flowing into the bathroom while suppressing a decrease in the dehumidifying capacity.

In a preferred embodiment of claim 3 , the rotational shaft side portion of the dehumidification rotor in the planar view range of the inlet of the regeneration air passage is wider than the rotational shaft side portion in the planar view range of the regeneration heater.

  According to the two-story structure described above, since the centrifugal fan rotates, the air that has passed through the dehumidifying rotor is sucked to the rotating shaft side of the circulation fan. For this reason, the humid air which came out of the dehumidification rotor is also attracted | sucked to the rotating shaft side. In this case, if the inlet of the regeneration air passage is set to a plan view range that matches the plan view range of the regenerative heater in order to suppress a decrease in the dehumidifying capacity, the suction is closer to the rotating shaft than the plan view range of the regenerative heater. The humid air that has been released does not enter the inlet of the regeneration air passage.

According to a preferred embodiment of claim 3 , the rotation shaft side portion of the circulation fan in the planar view range of the inlet of the regeneration air passage is wider than the rotation shaft side portion in the planar view range of the regeneration heater. Therefore, it is possible to prevent the humid air that has left the dehumidification rotor and is sucked into the rotating shaft side portion of the circulation fan from flowing into the bathroom.

According to a preferred embodiment of claim 4, the rotary shaft side portion in the planar view range of the inlet of the regeneration air path is more than the portion opposite to the rotary shaft side portion in the planar view range of the inlet of the regeneration wind path. Is wider than the planar view range of the regenerative heater.

  According to the two-story structure described above, the air that has exited the dehumidifying rotor is sucked to the rotating shaft side of the circulation fan. In order to reliably capture the humid air, a method of widening the planar view range of the inlet of the regenerative air passage is conceivable as much as possible. However, the preferable dehumidified air also flows into the regeneration air passage, leading to a decrease in the dehumidifying capacity.

According to a preferred embodiment of claim 4, the rotating shaft side portion and the opposite portion thereof are not evenly spread in the planar view range of the inlet of the regeneration air passage, but the rotating shaft side portion is on the opposite side. I'm trying to make it wider than the part. Accordingly, it is possible to prevent the humid air from flowing into the bathroom while suppressing a decrease in the dehumidifying capacity.

According to the preferred embodiment of claim 5 , the downstream portion in the rotational direction of the dehumidification rotor in the planar view range of the inlet of the regeneration air passage is closer to the dehumidification rotor in the planar view range of the entrance of the regeneration air passage. It is wider than the planar view range of the regenerative heater than the rotating shaft side portion. Although it is conceivable that the downstream portion and the rotary shaft side portion in the plan view range of the inlet of the regenerative air passage are equally spread, the downstream portion is considered in consideration of the rotation of the dehumidifying rotor and the two-story structure. It is considered that a higher amount of humid air is generated in the case of the rotary shaft side portion. In such a case, if they are spread evenly, the dehumidifying ability is unnecessarily reduced. According to a preferred embodiment of claim 5, since the downstream portion in the plan view range of the inlet of the regenerative air passage is wider than the rotary shaft side portion, humid air flows into the bathroom. It is possible to suppress the decrease in the dehumidifying ability.

In a preferred embodiment according to claim 6, on one side of the space of the circulation fan, air circulation duct and regeneration air passage is arranged so as to extend in substantially parallel to each independently widthwise. Depending on where the circulation fan and the dehumidifying rotor described above are provided and how various air paths are laid out, how much the bathroom dryer can be made compact is different. According to a preferred embodiment of claim 6 , the circulation air passage and the regeneration air passage are arranged in the space on one side of the circulation fan so as to extend independently in the width direction substantially in parallel. Therefore, it is possible to efficiently occupy one side space of the circulation fan, thereby contributing to the compactness of the bathroom dryer.

In a preferred embodiment according to claim 7, exhaust air path for the flow of air from the circulation fan connected to the air circulation duct into the bathroom outside it is provided. The circulation air passage and the exhaust air passage are provided so as to extend linearly from one side of the circulation fan in one direction. The regenerative air passage extends from the space between the circulation fan and the dehumidification rotor to the one side in a straight line, and extends upward from one end of the regenerative air passage. Then, a regeneration fan which is connected to the exhaust air passage and is a fan for sucking air containing moisture from the dehumidification rotor is disposed in the upward extending portion of the regeneration air passage. By adopting a two-story structure in the dryer body, the one side space of the circulation fan is inevitably a space having a height. According to this embodiment, the regeneration air passage has an upwardly extending portion as described above, and the regeneration fan is mounted on the extended portion. It can occupy efficiently in the height direction, thus contributing to the compactness of the bathroom dryer.

In a preferred embodiment according to claim 8, air circulation duct is partitioned so as to branch vertically in the middle thereof, branched portion above leads to an exhaust air duct, the exhaust air duct is above the air circulation duct It is divided so that it may be located in. Thereby, the one side space of the circulation fan is efficiently occupied up and down, so that it can further contribute to the compactness of the bathroom dryer.

  Hereinafter, a bathroom dryer with a dehumidifying function (hereinafter abbreviated as “bathroom dryer”) according to an embodiment of the present invention will be described with reference to the drawings.

  First, the outline of the bathroom dryer will be described with reference to FIGS.

  FIG. 1 shows an example of a usage pattern of a bathroom dryer according to an embodiment of the present invention.

  The bathroom dryer 1 according to the present embodiment is installed behind the ceiling of the bathroom 400. The bathroom dryer 1 can perform various things such as drying in the bathroom 400, heating, or dehumidification.

  FIG. 2 is a perspective view from below of the bathroom dryer 1. In the following description, the bathroom side may be referred to as “down” and the opposite side may be referred to as “up”.

  The bathroom dryer 1 has a dryer main body 501 housed in a case 503, and the dryer main body 501 covers at least a part of the lower surface of the dryer main body 501 (for example, substantially the entire area as shown in the figure). A cover is attached. For example, an internal grill 911 is attached to the lower surface of the dryer main body 501, and a front grill 509 is attached to the lower surface of the internal grill 911 as a cover. The case 503 is a rectangular parallelepiped box, but the shape is not limited thereto, and various shapes can be adopted.

  One side of the dryer main body 501 has an exhaust port (not shown) for discharging the air sucked from the bathroom to the outside of the bathroom dryer 1, and the case 503 has air discharged from the exhaust port. A flowing exhaust duct (not shown) is attached.

  The lower surface of the dryer main body 501 is provided with an air outlet 507 into the bathroom and a movable louver 505 that adjusts the direction of the wind from the outlet 507. The surface grill 509 covering the entire lower surface of the air dryer main body 501 is provided with a window 508 having a size such that the movable louver 505 can be visually observed and does not hinder the opening / closing operation of the movable louver 505.

  There is a certain gap between the lower surface of the dryer main body 501 and the surface grill 509, and the gap serves as a suction port 511 for the bathroom dryer 1. In other words, the suction port 511 is provided on all or a part of the side surface of the bathroom dryer 1, and so-called side air intake is performed. Air sucked from the suction port 511 enters the inside of the dryer body 501 from the lower surface of the dryer body 501.

  A filter insertion port 513 is formed on the side surface of the internal grill 911. From there, the filter 517 fixed to the filter frame 515 can be inserted. The filter 517 is for preventing dust and dust contained in the air sucked from the suction port 511 from entering the inside of the dryer main body 501.

  FIG. 3 is a perspective view from below of the dryer main body 501 of the bathroom dryer 1. That is, FIG. 3 is an external view when the internal grill 911, the surface grill 509, and the case 503 are removed from the bathroom dryer 1 shown in FIG.

  A main body outlet 990 that is an air outlet from the dryer main body 501 has a movable louver 505, and a motor (hereinafter referred to as a louver motor) 533 that drives the movable louver 505 is provided in the vicinity of the movable louver 505.

  A flange 539 is provided on the entire lower surface of the dryer main body 501. An internal grill 911 is attached to the flange 539.

  A dehumidifying rotor (not shown) is mounted inside the dryer body 501, and a dehumidifying rotor case 523 is attached at a location facing the lower side of the dehumidifying rotor. In the area of the dehumidification rotor case 523 facing the dehumidification rotor, a grid (hereinafter referred to as dehumidification rotor case grid) 527 that does not hinder the passage of air is stretched. In addition, a regenerative heater (not shown) is mounted inside the dryer main body 501, and an expanded metal 531 is attached to an area facing the regenerative heater on the lower surface of the dryer main body 501.

  In this embodiment, an air suction port (hereinafter, the term “main body suction port” is used to avoid confusion with the suction port 511 on the side surface of the bathroom dryer 1) 540 on the lower surface of the dryer body 501. The air that is provided and sucked into the side is sucked into the dryer main body 501 through the main body suction port 540. For example, as illustrated in FIG. 3, the main body inlet 540 includes an inlet 540 </ b> A for air sucked by rotation of a circulation fan described later (hereinafter referred to as a circulation fan inlet) 540 </ b> A and a reproduction fan described later. Can be partitioned into an air suction port (hereinafter referred to as a regeneration fan suction port) 540B (may be a single common suction port without partitioning).

  FIG. 4 is a perspective view from above of the dryer body 501 of FIG.

  Various components of the bathroom dryer 1 (for example, a circulation fan, which will be described later, and the circulation fan described later) are attached to a case 504 having a flange 539 and a q-shaped storage space (hereinafter referred to as “inner case”). A motor (hereinafter referred to as a circulation fan motor) 541 for driving is provided. In the inner case 504, the air blown from the circulation fan is discharged from the exhaust port 521 to an exhaust duct (not shown) through the exhaust air passage 100.

  A motor (hereinafter referred to as a regeneration fan motor) 535 for driving a later-described regeneration fan (not shown) in an empty space other than the q-shaped storage space in the inner case 504 and various components of the bathroom dryer 1 And a control device 519 for controlling.

  FIG. 5A is a bottom view of the bathroom dryer 1. FIG. 5B is a top view of the bathroom dryer 1. 6 is a cross-sectional view taken along the line 6-6 in FIG. 5A. 7 is a cross-sectional view taken along the line 7-7 in FIG. 5B. In the following description, for the sake of convenience, the side where the exhaust port 521 exists is referred to as “left”, the opposite side is referred to as “right”, and the front side of FIG. ) Is called “front”, and the back side of FIG. 6 is called “back”. This is not limited to the description with reference to FIG. 5A and FIG. 6, but refers to other drawings (for example, as shown in FIG. 7, when the left and right sides of the bathroom dryer 1 in FIG. 6 are shown reversed). ) Is the same.

  The inner grill 911 has a groove (hereinafter referred to as a locking groove) 609 for locking the surface grill 509. When a claw (grill locking claw) 607 provided on the upper surface of the surface grill 509 is caught in the locking groove 609, the surface grill 509 is locked to the internal grill 911.

  A dehumidification rotor 10, a dehumidification rotor motor 60, a regenerative heater 40, a circulation fan 20, and a circulation fan motor 541 are provided on the right side in the bathroom dryer 1. On the other hand, a movable louver 505, an air outlet 507, a heater 30, a damper 70, a damper motor 611, a regeneration fan 50 and a regeneration fan motor 535 are provided on the left side in the bathroom dryer 1. In the dryer main body 501, an air passage that communicates with the circulation fan 20 and continues to a circulation air passage 900 described later and a regeneration air passage 200 described later are formed. Thereby, when only the circulation fan 20 is rotated among the circulation fan 20 and the regenerative fan 50, it passes through the dehumidification rotor 10 from the suction port 511 on the side surface of the bathroom dryer 1 through the circulation fan suction port 540 </ b> A. Air is sucked into the air. When both the circulation fan 20 and the regeneration fan 50 are rotated, a part of the air sucked from the suction port 511 on the side surface of the bathroom dryer 1 passes through the dehumidification rotor 10 through the circulation fan suction port 540A. The air is sucked upward, and the remaining part is sucked into the regeneration air path 200 through the regeneration fan suction port 540B and the dehumidifying rotor 10. Hereinafter, these points and each component will be described in detail.

  The dehumidification rotor 10 is a disc-shaped desiccant member and has an air passage through which air can pass in the vertical direction (for example, there are a large number of holes penetrating in the vertical direction). Specifically, for example, the dehumidification rotor 10 is ceramic paper carrying an adsorbent (for example, zeolite and / or silica gel) for adsorbing moisture, and has a so-called honeycomb structure. The diameter of the dehumidifying rotor 10 is, for example, about 150 to 300 millimeters, and the thickness thereof is about 15 to 50 millimeters. The dehumidification rotor 10 is provided in the vicinity of the main body suction port 540 on the lower surface of the dryer main body 501 and is configured to have a size through which all or most of the air entering from the main body suction port 540 passes.

  The dehumidification rotor motor 60 is a motor that rotates the dehumidification rotor 10 about the center of the dehumidification rotor 10 as a rotation axis. The dehumidifying rotor motor 60 is mounted at a predetermined location in the space between the dehumidifying rotor 10 and the circulation fan 20 (for example, near the upper surface of the dehumidifying rotor 10).

  The regenerative heater 40 is mounted on the upstream side of the dehumidification rotor 10, for example, directly below a certain portion of the lower surface of the dehumidification rotor 10. The horizontal size of the regenerative heater 40 is smaller than the horizontal size of the dehumidifying rotor 10 (for example, less than one-fourth of the horizontal size of the dehumidifying rotor 10). Due to the heat generated by the regenerative heater 40, the dehumidifying rotor 10 releases the adsorbed water, thereby regenerating the dehumidifying capacity of the dehumidifying rotor 10. Specifically, if the regenerative heater 40 generates heat while rotating the dehumidifying rotor 10, the air heated by the regenerative heater 40 passes through the dehumidifying rotor 10, thereby releasing moisture adsorbed at each part of the dehumidifying rotor 10. Therefore, it is possible to regenerate the dehumidification capacity of the dehumidification rotor 10 that has been reduced by adsorbing moisture (in this case, by rotating the regeneration fan 50, the moisture released from the dehumidification rotor 10 is discharged out of the bathroom). Is possible). Further, when the regenerative heater 40 generates heat, foreign matter (for example, dust or dust) attached to the dehumidifying rotor 10 can be burned, and thereby clogging of the air path of the dehumidifying rotor 10 can be eliminated.

  A circulation fan motor 541 is mounted on the circulation fan 20. The circulation fan 20 is, for example, a centrifugal fan, and rotates by driving of a circulation fan motor 541. As the circulation fan 20 rotates, the air in the bathroom is sucked from the suction port 511 on the side surface of the bathroom dryer 1, and the sucked air passes through the dehumidification rotor 10 from the circulation fan suction port 540A. It flows to. The air that has flowed upward flows to at least one of the exhaust air passage 100 and the downstream portion 900 </ b> B of the circulation air passage 900 according to the open / close state of the damper 70. Note that a temperature sensor 551A for detecting the temperature of the air upstream from the dehumidifying rotor 10 and a humidity sensor 553 for detecting the relative humidity of the air are a space between the dehumidifying rotor 10 and the main body inlet 540. At a predetermined place. Specifically, for example, each of the sensors 551A and 553 is provided at a position approximately the same as the height position of the regenerative heater 40.

  The air sucked by the circulation fan 20 through the dehumidification rotor 10 flows into the space from the circulation fan 20 to the left side. A circulation air passage 900 extending further to the left and extending downward from the middle is provided on the left side of the circulation fan 20. Circulating air passage 900 has an upstream portion (hereinafter referred to as an upstream portion of the circulating air passage) 900A which is a portion extending to the left (in other words, a space adjacent to the left of circulation fan 20), and downward from upstream portion 900A. And a downstream portion (hereinafter referred to as a downstream portion of the circulation air passage) 900B extending. The circulation air passage upstream portion 900A is branched into a circulation air passage downstream portion 900B and an exhaust air passage 100 extending leftward to the exhaust port 521. The air flowing through the exhaust air passage 100 is exhausted outside the bathroom through the exhaust port 521 and the exhaust duct 555. On the other hand, the air flowing through the circulating air passage downstream portion 900B is discharged from the outlet 507 into the bathroom. Whether the air that has flown to the left of the circulation fan 20 flows to the exhaust air passage 100 or the circulation air passage downstream portion 900B or both is provided in the circulation air passage upstream portion 900A (the space adjacent to the left of the circulation fan 20). It depends on the open / close state of the damper 70. The open / close state of the damper 70 can be adjusted by controlling the driving of the damper motor 611. These points will be described in detail with reference to FIG.

  The heater 30 is provided on the downstream side of the circulation air passage 900 (for example, in the vicinity of the air outlet 507). When the heater 30 generates heat, the air passing through the heater 30 is warmed, and the warmed air is discharged from the outlet 507 into the bathroom. A temperature sensor 551B for detecting the temperature of the warmed air is provided at a predetermined location. Specifically, for example, the temperature sensor 551B is provided on the downstream side of the heating heater 30, more specifically, for example, between the heating heater 30 and the movable louver 505. Various heaters can be employed as the heating heater 30 and the regenerative heater 40. For example, a PTC (Positive Temperature Coefficient) heater can be used. The PTC heater has a self-temperature controllability because the electrical resistance value of the resistor increases as the temperature rises.

  An outlet 563 of the regeneration air path 200 is provided in the middle of the exhaust air path 100 (for example, in the vicinity of the exhaust port 521). The regeneration air passage 200 extends from a certain position on the downstream side of the dehumidification rotor 10 (for example, a position facing the regeneration heater 40 via the dehumidification rotor 10) to the left, and a certain midway position (for example, the dryer main body 501). It extends upward from the vicinity of the left surface), extends forward from the position where the regeneration fan 50 is located, and is connected to the middle of the exhaust air passage 100. The air flowing through the regeneration air path 200 exits the exhaust air path 100 and is discharged outside the bathroom through the exhaust port 521 and the exhaust duct 555. In the middle of the regenerative air passage 200, a backflow prevention valve 613 is provided to prevent the humid air that has progressed downstream from flowing back into the bathroom.

  A regeneration fan motor 535 is attached on the regeneration fan 50. The regeneration fan 50 is a centrifugal fan, for example, and rotates by driving of the regeneration fan motor 535. As the regeneration fan 50 rotates, the air in the bathroom is sucked from the suction port 511 on the side of the bathroom dryer 1, and the sucked air passes from the regeneration fan suction port 540B through the regeneration heater 40 to the dehumidification rotor. Flows upward through 10. The air that has flowed upward flows into the regeneration air passage 200.

  The above is the outline of the configuration of the bathroom dryer 1. The bathroom dryer 1 is connected to a duct (hereinafter referred to as “another room intake duct”) 557 through which air from a room different from the bathroom flows, and is separated via the other room intake duct 557. Room air may be sucked into the dryer body 501. The intake air can be configured to exit to a predetermined location, for example, downstream of the dehumidification rotor 10. In this case, similarly to the air sucked by the circulation fan 20, it is possible to control whether the air is exhausted from the exhaust port 512 or put out into the bathroom. Whether or not to inhale air in another room can be controlled by, for example, the open / closed state (for example, open or closed) of the intake damper 601 for other rooms. This control can be performed by the control device 519, for example.

  FIG. 8 is a block diagram showing a control system of the bathroom dryer 1.

  The control device 519 includes, for example, a CPU 625 and a memory 621. For example, when the CPU 625 receives a signal from at least one of the operation panel 700, the temperature sensors 551A and 551B, and the humidity sensor 553, based on the signal, the CPU 541 for the circulation fan, the motor 535 for the regeneration fan, the dehumidification At least one of the rotor motor 60, the damper motor 611, the heater 30, the regenerative heater 40, and the louver motor 623 can be controlled as necessary. In other words, for example, the CPU 625 rotates the circulation fan 20, the regeneration fan 50, the dehumidification rotor 10, the degree of opening / closing of the damper 70, the heat generated by the heating heater 30, the heat generated by the regeneration heater 40, and the movable louver 505. Can be controlled.

  FIG. 9 shows an example of the operation panel 700.

  The operation panel 700 is a user interface (for example, a remote controller) of the bathroom dryer 1. The operation panel 700 includes a plurality of operation mode switches respectively corresponding to a plurality of operation modes that the bathroom dryer 1 can execute. Specifically, for example, operation mode switches corresponding to operation modes such as “ventilation”, “clothing drying”, “bathroom dehumidification”, “heating”, “cool air”, “24-hour ventilation” and “mold prevention”, respectively. Is installed. The user can cause the bathroom dryer 1 to execute a desired operation mode by turning on an operation mode switch corresponding to the operation mode that the bathroom dryer 1 wants to execute.

  When the control device 519 receives a signal for turning on a certain operation mode switch of the operation panel 700, the control device 519 determines whether the circulation fan 20 is detected from the detection result (for example, relative humidity) of at least one of the temperature sensors 551A and 551B and the humidity sensor 553. At least one of the heater 30, the regenerative heater 40, the regenerative fan 50, the dehumidifying rotor motor 60 and the damper 70 is controlled, thereby executing the operation mode corresponding to the switch that has been turned on. Hereinafter, the air flow in each operation mode will be described with reference to FIGS.

  FIG. 10 shows the state of the damper and the air flow in the “bathroom dehumidification” mode. Note that FIG. 10 is a schematic diagram for explaining the flow of air and the state of the damper. Therefore, the air passing through the exhaust air passage 100 and the air passing through the regeneration air passage 200 are discharged from separate exhaust ports. In this embodiment, there is one exhaust port 512 as described above. The same applies to the other FIGS.

  In the “bathroom dehumidification” mode, the control device 519 rotates the dehumidification rotor 10 at a certain rotation speed (for example, about 0.5 rotations per minute) as shown in FIG. Further, the control device 519 rotates the circulation fan 20 and the dehumidifying rotor 10 to fully close the damper 70 (completely shuts off the inlet of the exhaust air passage 100 and removes all of the air that has exited into the space on the left side of the circulation fan 20. In a state where the air flows through the downstream portion 900B of the circulation air passage), and the power supply of the heater 30 is turned off. Also, the control device 519 rotates the regeneration fan 50 to turn on the power of the regeneration heater 40. As a result, the air in the bathroom circulates while being dehumidified as indicated by arrows A, B, C, and D, and the humid air is exhausted from the regeneration air passage 200 as indicated by arrows F, G, and H. It is discharged outside the bathroom through a duct. That is, according to the “bathroom dehumidification” mode, humid air is sucked from the bathroom, and moisture is absorbed by the dehumidification rotor 10 so that the air with reduced humidity is blown into the bathroom. Since the dehumidifying capacity of the dehumidifying rotor 10 that has been reduced by adsorbing is regenerated by the regenerative heater 40, the inside of the bathroom can be dehumidified.

  For example, when the heating heater 30 and the regenerative heater 40 are equipped with a function capable of adjusting the amount of heat generation, heat generation of a predetermined amount or more instead of the power-on state, and a predetermined amount instead of the power-off state The following control of heat generation may be performed.

  FIG. 11 shows the state of the damper and the air flow in the “clothing drying” mode and the “cool wind” mode.

  In the “clothing drying” mode, the control device 519 rotates the circulation fan 20 but does not rotate the dehumidification rotor 10 and the regeneration fan 50 as shown in FIG. Further, the control device 519 turns on the power supply of the heater 30 but turns off the power supply of the regenerative heater 40. Further, the control device 519 opens the damper 70 in a half-open state (not completely blocking both the inlet of the exhaust air passage 100 and the inlet of the downstream portion of the circulating air passage 900B, and does not completely block the air that has flown out to the upstream portion of the circulating air passage 900A. Part flows to the exhaust air passage 100, and the remaining part flows to the circulation air passage downstream portion 900B). Thus, according to the “clothing drying” mode, as indicated by arrows A, B, C, and E, a part of the air sucked by the circulation fan 20 is moved from the exhaust air passage 100 to the outside of the bathroom through the exhaust duct. As shown in arrows A, B, C and D, the air in the bathroom is circulated while heating, so that drying of the clothes dried in the bathroom can be promoted (but “dehumidification in the bathroom” Unlike the “mode”, the dehumidification rotor 10 and the regeneration fan 50 do not rotate and the regeneration heater 40 does not generate heat, so the dehumidification rotor 10 is not regenerated.

  The “cool air” mode is the same as the “clothing drying” mode, except that the heater 30 is also turned off.

  FIG. 12 shows the state of the damper and the air flow in the “heating” mode.

  In the “heating” mode, the control device 519 rotates the circulation fan 20 but does not rotate the dehumidification rotor 10 and the regeneration fan 50 as shown in FIG. Further, the control device 519 turns on the power supply of the heater 30 but turns off the power supply of the regenerative heater 40. Furthermore, the control device 519 causes the damper 70 to be fully closed. Thereby, in the “heating” mode, the air in the bathroom circulates while being warmed as shown by arrows A, B, C and D (the dehumidification rotor 10 and the regeneration fan 50 do not rotate even in the “heating” mode). Since the regeneration heater 40 is not heated, the dehumidification rotor 10 is not regenerated).

  FIG. 13 shows the state of the damper and the air flow in the “ventilation” mode.

  In the “ventilation” mode, the control device 519 rotates the circulation fan 20 but does not rotate the dehumidification rotor 10 and the regeneration fan 50 as shown in FIG. In addition, the control device 519 turns off the power supply of the heater 30 and the regenerative heater 40. Further, the control device 519 brings the damper 70 into a fully open state (a state where the inlet of the circulating air passage downstream portion 900B is completely blocked and all of the air that has flowed out of the circulating air passage upstream portion 900A flows into the exhaust air passage 100). . As a result, in the “ventilation mode”, as shown by arrows A, B, C, and E, the air in the bathroom is discharged from the exhaust air passage 100 to the outside of the bathroom through the exhaust duct (even in the “ventilation” mode, dehumidification is performed). Since the rotor 10 and the regeneration fan 50 do not rotate and the regeneration heater 40 does not generate heat, the dehumidification rotor 10 is not regenerated. In the “ventilation” mode, the regeneration fan 50 may be rotated instead of or in addition to the rotation of the circulation fan 20.

  The above is description of the outline | summary of the bathroom dryer 1 which concerns on this embodiment.

  Hereinafter, in the bathroom dryer 1 which concerns on this embodiment, the main characteristic points in connection with this application are demonstrated in detail. In that case, it shall mainly refer to FIG. 6 and FIG. 7 and refer to another drawing as appropriate. In the following description, viewing from directly above or directly below the bathroom dryer 1 (or the dryer body 501) is referred to as “planar view”, and the range of the target object when a certain target object is viewed in plan view. It is called “plan view range”, and the outline shape of the plan view range is called “plan view shape”. Moreover, in the following description, the vertical direction of the bathroom dryer 1 may be referred to as “vertical direction”, and the horizontal plane direction including the front-rear direction and the left-right direction may be referred to as “horizontal direction”.

  (1) The device layout of the bathroom dryer 1 is devised.

  (1-1) Arrangement of the dehumidification rotor 10 and the circulation fan 20.

  A so-called two-story structure is provided, the dehumidification rotor 10 is mounted on the first floor, and the circulation fan 20 is mounted on the second floor. That is, the circulation fan 20 is mounted above the dehumidifying rotor 10. Specifically, for example, the dehumidification rotor 10 is mounted so that the rotation axis thereof is vertical, and the centrifugal circulation fan 20 is positioned above the dehumidification rotor 10 and the rotation axis of the fan 20 is vertical. (The rotating shaft of the dehumidifying rotor 10 and the rotating shaft of the circulation fan 20 may be shifted in the horizontal direction or may be aligned without shifting). The area of the main surface (for example, the upper surface) of the dehumidifying rotor 10 can be made larger than the area of the circulation fan 20 in the plan view range. In this case, the respective positions of the dehumidification rotor 10 and the circulation fan 20 are set so that the plan view range of the circulation fan 20 falls within the plan view range of the dehumidification rotor 10 (or a position where most of them overlap). Can do.

  By setting it as such a two-story structure, it can prevent that the size of the dryer main body 501 becomes large in a horizontal direction. Further, in the case of a two-story structure, a method of bringing the circulation fan 20 and the dehumidifying rotor 10 as close as possible is conceivable in order to reduce the size of the dryer body 501 in the height direction as much as possible.

  However, if it does so, it will become impossible for the circulation fan 20 to suck up air sufficiently through the dehumidification rotor 10 (that is, suction efficiency will deteriorate). Because, in the present embodiment, as schematically illustrated in FIG. 14, the centrifugal fan 20 is in a state where the rotating shafts of both the circulation fan 20 and the dehumidifying rotor 10 are perpendicular to the surface of the dehumidifying rotor. Is mounted above the dehumidifying rotor 10, because of the structure of the centrifugal fan 20, the air is sucked at the center thereof, so that air that has passed near the periphery of the dehumidifying rotor 10 is also concentrated on the center side. (In other words, the air that has passed through the dehumidifying rotor 10 (especially in the vicinity of the periphery thereof) is once concentrated on the center side, and the air that is discharged to the outside of the circulation fan 20 is extracted from the circulation fan 20. To capture from the inside). In particular, as will be described later, a member (hereinafter referred to as a “bell mouth cover” for convenience) having a hole (bell mouth) for concentrating the air that has passed near the periphery of the dehumidifying rotor 10 to the center side. When provided between the circulation fan 20 and the dehumidifying rotor 10, the bell mouth cover and the dehumidifying rotor are provided so that the air that has passed near the periphery of the dehumidifying rotor 10 enters the bell mouth in the center of the bell mouth cover. It must be separated in a certain height direction.

  For this reason, it is necessary to separate the circulation fan 20 and the dehumidifying rotor 10 in the height direction. The problem is the distance H. If the distance H is excessively increased, the dryer main body 501 is increased in size in the height direction, resulting in a demerit.

  Therefore, in the present embodiment, the distance that can suck the air that has passed through the dehumidification rotor to the center side of the circulation fan, and the distance that is not or cannot be difficult is determined as the effective distance, and the dehumidification rotor 10 (for example, it) The distance H between the upper surface and the circulation fan 20 (for example, the lower surface thereof) can be a certain effective distance. The distance H is, for example, at least one of the area of the upper surface and / or the lower surface of the dehumidification rotor 10, the rotational speed of the dehumidification rotor 10, the area of the lower surface of the circulation fan 20, and the rotation speed of the circulation fan 20. Can be determined based on.

  When the dehumidification rotor 10 and the circulation fan 20 are separated by a certain effective distance H, a space is inevitably generated between the dehumidification rotor 10 and the circulation fan 20. If the space is not used effectively, it becomes a mere dead space, which prevents the bathroom dryer from being made compact.

  Therefore, in this embodiment, in order to effectively use the space that is inevitably generated and to make the bathroom dryer 1 (dryer body 501) compact, for example, the motor 60 for the dehumidification rotor, An inlet portion of the regeneration air passage 200 (hereinafter referred to as a regeneration air passage entrance portion) can be mounted. The dehumidifying rotor motor 60 can be mounted on the upper surface of the dehumidifying rotor 10 and in the vicinity of the rotating shaft of the dehumidifying rotor 10, for example. The regeneration air passage inlet can be provided, for example, at the left side of the dehumidification rotor 10 (that is, the part near the exhaust port 521). As a result, the inevitably generated space is no longer a dead space, and a separate space for the dehumidifying rotor motor 60 and the regenerative air passage entrance is not required, thereby contributing to the compactness of the bathroom dryer 1. Can do. In addition, since the motor 60 for the dehumidification rotor and the inlet portion of the regeneration air passage 200 are not so large, the adverse effect on the dehumidification performance is small, and the necessary members in the present embodiment are provided in the inevitably generated space. Since the space can be used effectively, a decrease in dehumidifying ability can be suppressed.

  (1-2) Configuration and arrangement of various air paths.

  The air that has flowed from the inside to the outside of the circulation fan 20 flows to the circulation air path upstream portion 900A. In the circulation air path upstream portion 900A, it is partitioned so as to be divided into upper and lower parts, whereby the space branches up and down, the upper space part is connected to the exhaust air path 100, and the lower space part is the circulation air path. It leads to the downstream part 900B. Note that the downstream side portion of the circulation air path upstream portion 900A is partitioned obliquely at the lower left. As a result, when the damper 70 is in the fully closed state or the half open state, the air from the circulation fan 20 easily flows to the circulation air path downstream portion 900B.

  Further, as shown in FIG. 15, an air passage space composed of the circulation air passage upstream portion 900 </ b> A and the exhaust air passage 100 is disposed on the front side (for example, near the front surface) in the dryer main body 501, and the air passage space. The regeneration air passage 200 through which the air sucked by the regeneration fan 50 flows is disposed at a position offset from the position of FIG. As a result, the upstream portion 900A of the circulation air passage and the exhaust air passage 100 and the regeneration air passage 200 are offset in the front-rear direction in the dryer main body 501, so that the left space adjacent to the two-story structure can be efficiently moved in the front-rear direction. Therefore, the bathroom dryer 1 can be made compact.

  The exhaust air passage 100 extends rightward from the exhaust port 521 along the front surface of the bathroom dryer 1 and is connected to the circulation air passage upstream portion 900A. The regeneration air passage 200 extends from a certain position on the downstream side of the dehumidification rotor 10 to the left, extends upward from a certain middle position, and extends forward from the position where the regeneration fan 50 is located. Connected on the way. A portion extending leftward from the inlet of the regeneration air passage 200 is disposed at a position offset below the exhaust air passage 100. By adopting a two-story structure on the right side in the dryer main body 501, a space having a height is inevitably formed on the left side, but in this embodiment, the regeneration air passage 200 is arranged as described above. Therefore, the left space in the dryer main body 501 can be efficiently occupied in the height direction, thereby contributing to the compactness of the bathroom dryer 1.

  It should be noted that the circulation air passage downstream portion 900B described above extends downward from the circulation air passage upstream portion 900A in front of the portion of the regeneration air passage 200 extending in the height direction. As a result, the left space in the dryer main body 501 is more efficiently occupied, which can further contribute to the compactness of the bathroom dryer.

  In short, in this embodiment, both the air returned to the bathroom via the circulation air passage 900 and the air discharged to the outside of the bathroom via the regeneration air passage 200 are exhausted to the outside of the bathroom via the exhaust air passage 100. (Strictly speaking, when the circulation fan 20 rotates, the air is sucked from the circulation fan suction port 540A, and when the regeneration fan 50 rotates, the air is sucked from the regeneration fan suction port 540B. ). On the downstream side of the dehumidifying rotor 10, humid air flows into the regeneration air passage 200, and air with less humidity than the air flows into the circulation fan 20. Then, the air that has flowed out of the circulation fan 20 to the circulation air passage upstream portion 900A flows to both or one of the exhaust air passage 100 and the circulation air passage downstream portion 900B. At the same height as the circulation fan 20, the exhaust air passage 100 extends to the left from the upstream portion 900 </ b> A of the circulation air passage to the exhaust port 521. Further, the circulating air passage downstream portion 900B extends downward from the circulating air passage upstream portion 900A to the outlet 507. And the reproduction | regeneration air path 200 is provided so that these air paths may not be disturbed. That is, the regeneration air passage 200 extends from the upper position of the dehumidification rotor 10 to the left at a position lower than the circulation fan 20 and at a position behind the position where the circulation air passage downstream portion 900B passes in the vertical direction. By extending upward in the middle position and extending forward at the same height as the exhaust air passage 100, the exhaust air passage 100 is connected. As a result, the air passages are efficiently formed in the left-right space of the two-story structure in the front-rear, left-right, and up-and-down directions. , 200 and 900 can be formed.

  (2) A device to prevent air containing a lot of moisture from flowing into the bathroom.

  As shown in FIG. 16, a heater device 40 </ b> A including a regenerative heater 40 is mounted directly below a certain portion of the lower surface of the dehumidifying rotor 10. Specifically, for example, the regenerative heater 40 is a part of the dehumidification rotor 10 near the exhaust port 512, more specifically, for example, a certain peripheral edge of the left half closer to the exhaust port 512 than the right half of the dehumidification rotor 10 It is mounted directly under the vicinity.

  Between the dehumidifying rotor 10 and the circulation fan 20, a bell mouth cover 701 having a bell mouth 702 for collecting air that has passed near the periphery of the dehumidifying rotor 10 toward the center is provided. The bell mouth 702 has a shape in which a part of a circle is missing, and the radius thereof is a predetermined size, for example, a size equal to or smaller than the inner diameter of the circulation fan 20 so that air is sent to the inside of the circulation fan 20. ing.

  A regeneration air passage entrance 703 extends downward from a certain portion (or the vicinity thereof) of the periphery of the bell mouth 702 of the bell mouth cover 701. The regeneration air passage inlet 705 has an area smaller than the area of the bell mouth 702, is a position lower than the bell mouth 702, and is provided at a position facing the regeneration heater 40 with the dehumidification rotor 10 interposed therebetween. The regenerative air passage inlet 705 is provided in this way because the humid air containing moisture from the dehumidifying rotor 10 by the regenerating heater 40 (at least air that is more humid than the air upstream of the dehumidifying rotor 10) is bell. In order to avoid passing through the mouse 702, in other words, to capture such humid air before passing through the bell mouth 702.

  Here, as a method for capturing as much humid air as possible by letting as little air as possible to flow through the bell mouth 702, a plan view range of the regeneration air passage inlet 705 is reproduced as shown in FIG. A method may be considered in which the shape overlaps the planar view range of the heater 40 and the bell mouth cover 701 is as close as possible to the dehumidifying rotor 10. However, if the bell mouth cover 701 is brought too close to the dehumidifying rotor 10, it becomes difficult to suck the air that has passed through the dehumidifying rotor 10 toward the center of the circulation fan 20, and the air that is desired to flow into the bell mouth 702 (for example, the dehumidifying rotor 10 Air that has passed through a region between the region facing the bell mouth 702 and the periphery of the dehumidifying rotor 10) becomes difficult to flow into the bell mouth 702.

  Therefore, it is considered that the bell mouth cover 701 needs to be separated from the upper surface of the dehumidifying rotor 10 to some extent. However, since the dehumidification rotor 10 rotates as indicated by the thin arrows in FIG. 17 (the arrows indicate the rotation direction of the dehumidification rotor 10), the regeneration air path inlet 705 is made to coincide with the plan view range of the regeneration heater 40. If it becomes a range in a plan view, when it is heated by the regenerative heater 40 and comes out as humid air, the place where the humid air exits may not exist directly under the regeneration air passage entrance 705. Further, according to the two-story structure as described above, since the air coming out of the dehumidifying rotor 10 is sucked to the rotating shaft side of the circulation fan 20, the regeneration air passage inlet 705 matches the plan view range of the regeneration heater. If the range is in a plan view, the air sucked into the rotating shaft side of the circulation fan 20 may not be captured (the length of the thick arrow in FIG. 17 is due to the rotation of the dehumidifying rotor 10 and the two-story structure). This is to help understand that humid air does not fit within the range of the regenerative heater in plan view).

  Therefore, in the present embodiment, the bell mouth cover 701 is separated from the upper surface of the dehumidifying rotor 10 to some extent, and the plan view shape of the regeneration air passage inlet 705 with respect to the plan view shape of the regeneration heater 40 is devised.

  The distance between the bell mouth cover 701 and the dehumidifying rotor 10 is at least a distance such that the air that has passed through the dehumidifying rotor 10 is sucked to the center side of the circulating fan 20 by the negative pressure of the circulating fan 20. The distance is not so close as to be difficult. This distance can be determined based on at least one of the size of the bell mouth 702, the amount of heat generated by the regenerative heater 40, the planar view range of the regenerative heater 40, and the rotational speed of the dehumidifying rotor 10, for example.

  The planar view shape of the reproduction | regeneration wind path entrance 705 is devised so that it may illustrate in FIG. Specifically, a part of the sectional area of the space from the dehumidification rotor 10 to the bell mouth 702 is sacrificed, and the planar view range of the regeneration air passage inlet 705 is larger than the planar view range of the regeneration heater 40. More specifically, a downstream portion in the rotation direction of the dehumidification rotor 10 (hereinafter referred to as the rotor rotation direction) in the plan view range of the regeneration air passage inlet 705 (in other words, a portion facing the peripheral edge of the dehumidification rotor 10). Is wider than the downstream portion of the range of the regenerative heater 40 in a plan view. In addition, in the plan view range of the regeneration air passage inlet 705, the rotating shaft side portion of the circulation fan 20 is also wider than that portion of the regeneration heater 40 in the plan view range. The degree of spread is greater in the downstream portion of the rotor rotation direction than in the rotary shaft side portion of the circulation fan 20. Specifically, the distance X1 between the edge of the downstream portion of the regeneration heater 40 in the planar view range in the rotor rotation direction and the edge of the portion of the regeneration air inlet 705 in the planar view range of the downstream portion in the rotor rotation direction is regenerated. It is longer than the distance X2 between the edge of the circulating fan rotating shaft side portion in the plan view range of the heater 40 and the edge of the circulating fan rotating shaft side portion in the plan view range of the regeneration air passage inlet 705.

  By being devised such as (2), the function as a bathroom dryer with a dehumidifying function can be sufficiently exhibited while suppressing the influence of the circulation fan 20 being disposed above the dehumidifying rotor 10. (Note that in FIG. 18, the tip of the thick arrow is within the planar view range of the regenerative air passage inlet 705 because it is devised as in the present embodiment that substantially humid air leaks. Indicates that it has become possible to prevent this)

  As mentioned above, although embodiment of this invention was described, this is an illustration for description of this invention, Comprising: It is not the meaning which limits the scope of the present invention only to this embodiment. The present invention can be implemented in various other forms.

An example of the usage pattern of the bathroom dryer which concerns on one Embodiment of this invention is shown. It is a perspective view from the downward direction of the bathroom dryer 1. FIG. It is a perspective view from the downward direction of the dryer main body 501 of the bathroom dryer 1. FIG. It is a perspective view from the upper part of the dryer main body 501 of FIG. FIG. 5A is a bottom view of the bathroom dryer 1. FIG. 5B is a top view of the bathroom dryer 1. It is 6-6 sectional drawing of FIG. 5A. It is 7-7 sectional drawing of FIG. 5B. It is a block diagram which shows the control system of the bathroom dryer. An example of the operation panel 700 is shown. The state of the damper and the air flow in the “bathroom dehumidification” mode are shown. The damper state and air flow in the “clothing drying” mode and the “cool wind” mode are shown. The state of the damper and the air flow in the “heating” mode are shown. Shows damper status and air flow in “ventilation” mode. The figure for demonstrating why it is necessary to leave | separate the circulation fan 20 and the dehumidification rotor 10 more than predetermined distance. The figure for demonstrating the positional relationship in the planar view of the exhaust air path 100 and the reproduction | regeneration air path. The figure which shows the hierarchical structure containing the dehumidification rotor. The figure which shows the relationship before the improvement of the planar view range of the regeneration heater 40 and the planar view range of the regeneration air passage inlet 705. The figure which shows the relationship after the planar view range of the reproduction | regeneration heater 40, and the planar view range of the reproduction | regeneration air path entrance 705 after improvement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Bathroom dryer 10 ... Dehumidification rotor 20 ... Circulation fan 30 ... Regeneration fan 40 ... Regeneration heater 50 ... Regeneration fan 60 ... Dehumidification rotor motor 70 ... Damper 100 ... Exhaust air path 200 ... Regeneration air path 501 ... Dryer main body 509 ... Surface grill 511 ... Suction port 512 ... Exhaust port 519 ... Control device 900 ... Circulating air channel 900A ... Circulating air channel upstream part 900B ... Circulating air channel downstream part

Claims (8)

In the bathroom dryer that can be installed on the ceiling of the bathroom,
A dryer body which is a body of the bathroom dryer;
A main body suction port that is provided at the lower part of the dryer main body and serves as an air suction port in the bathroom,
A main body outlet that is provided in the dryer main body and serves as an air outlet to the bathroom;
A circulation air passage serving as a passage of air sucked from the main body inlet and blown out from the main body outlet;
A dehumidifying device having a plurality of air passages configured to allow air to pass from the lower surface to the upper surface, and having a dehumidification rotor that removes moisture in the air passing through each air passage;
Provided in the air circulation duct, the air in the bathroom by a centrifugal type fan for blowing the bath from the from the main body suction port through the air circulation duct suction through the dehumidification rotor main body outlet With a circulation fan ,
From the dehumidification rotor, the dehumidifying device heats air flowing in from the main body suction port, and the heated air passes through the dehumidification rotor to release water contained in the dehumidification rotor. A regenerative air passage that is an air passage for flowing humid air containing released moisture out of the bathroom;
With
The circulation fan and the dehumidifying rotor are arranged so as to overlap in a plan view when the bathroom dryer is viewed from directly above or directly below, and the rotation shafts that are the respective rotation centers are both described above. Arranged so as to be perpendicular to the surface of the dehumidifying rotor, and
The dehumidification rotor is arranged so that the upper surface and the lower surface of the dehumidification rotor are horizontal,
The circulation fan is disposed above the dehumidification rotor at a predetermined effective distance,
The regenerative heater is disposed at a predetermined position below the lower surface of the dehumidifying rotor,
The inlet of the regeneration air passage is in a space created by separating the circulation fan and the dehumidification rotor by the effective distance, and is located at a position facing the regeneration heater via the dehumidification rotor. Is provided so as to partition a part of the upper surface side of
The downstream portion in the rotational direction of the dehumidifying rotor in the plan view range of the inlet of the regeneration air passage is wider than the downstream portion in the rotational direction in the plan view range of the regeneration heater. Features a bathroom dryer. The downstream portion in the rotational direction of the dehumidification rotor in the planar view range of the inlet of the regeneration air passage is more upstream than the upstream portion in the rotational direction of the dehumidification rotor in the planar view range of the inlet of the regeneration air passage. , Expanded compared to the planar view range of the regenerative heater,
The bathroom dryer according to claim 1 . In the planar view range of the inlet of the regeneration air passage, the rotary shaft side portion of the circulation fan is wider than the rotational shaft side portion in the planar view range of the regeneration heater,
The bathroom dryer according to claim 1 . The rotation shaft side portion in the planar view range of the regeneration air passage entrance in the planar view range of the regeneration air passage is in plan view of the regeneration heater than the portion on the opposite side of the rotation shaft side portion in the planar view range of the regeneration air passage entrance. Expanded compared to the range,
The bathroom dryer according to claim 1 . The downstream side portion in the rotational direction of the dehumidification rotor in the planar view range of the inlet of the regeneration air passage is more than the rotational shaft side portion of the dehumidification rotor in the planar view range of the entrance of the regeneration air passage. Expanded compared to the planar view range of the regenerative heater,
The bathroom dryer according to claim 1 or 3 . In the space on one side of the circulation fan, the circulation air passage and the regeneration air passage are arranged so as to extend independently in the width direction substantially in parallel.
The bathroom dryer according to claim 1 . An exhaust air passage connected to the circulation air passage for flowing the air from the circulation fan to the outside of the bathroom;
The circulation air passage and the exhaust air passage are provided so as to extend linearly from one side of the circulation fan in one direction, and the regeneration air passage is below the circulation air passage, A straight line extending from the space between the circulation fan and the dehumidifying rotor in one side direction, extending upward from one end thereof, and connected to the exhaust air passage; and A regeneration fan, which is a fan for sucking in air containing moisture from the dehumidifying rotor, is arranged in the extending portion above the regeneration air passage.
The bathroom dryer according to claim 6 . The circulation air passage is partitioned so as to branch up and down in the middle thereof, and a portion branched upward is connected to the exhaust air passage, and the exhaust air passage is partitioned above the circulation air passage. ing,
The bathroom dryer according to claim 7 .