JP2006234193A - Bathroom heating dryer with dehumidifying function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathroom heating dryer with a dehumidifying function for maintaining stable dehumidifying performance while ventilating a wash room and a rest room. <P>SOLUTION: The bathroom heating dryer with the dehumidifying function comprises a suction port connectable to the other space than the bathroom, a suction chamber using a ventilating fan for sucking air in the other space than the bathroom via the suction port, a dehumidifying rotor, a circulation air duct using a circulating fan for sucking air in the bathroom and circulating it into the bathroom via the dehumidifying rotor, a regeneration air duct using a regenerating heater for heating the air in the bathroom which is then taken out via the dehumidifying rotor, a first communication port for communicating the regeneration air duct with the suction chamber and exhausting the air taken out via the regenerating heater and the dehumidifying rotor to the suction chamber, and a regeneration shutter for opening/closing the first communication port. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bathroom heater / dryer with a dehumidifying function, and more specifically to a bathroom heater / dryer with a dehumidifying function that has a dehumidifying function for lowering the humidity in the bathroom in addition to the function of ventilating and heating the bathroom.

  In general homes and the like, bathroom heating dryers installed in bathrooms are becoming popular. By heating the bathroom, for example, even when the outside air temperature is low, such as in winter, a rapid change in temperature can be suppressed and comfortable bathing can be performed. Also, by ventilating and flowing cool air, you can enjoy a comfortable bathing in the summer and prevent mold in the bathroom. Furthermore, the clothes can be washed at any time regardless of the weather by drying in the bathroom.

In consideration of the fact that the bathroom is originally a space with high humidity and that clothes are dried more efficiently, it is desirable to add a dehumidifying function to the bathroom heater / dryer. As a means for realizing such a dehumidifying function, for example, a technique has been proposed in which moisture in the bathroom is adsorbed using an adsorbent such as zeolite or silica gel, and is regenerated and released outside the bathroom (for example, Patent Documents). 1 to 3).
Japanese Patent Laid-Open No. 9-225249 Japanese Patent Laid-Open No. 11-4998 JP-A-8-35696

  In recent years, bathroom heating dryers have been required to function as a 24-hour ventilation system for the entire house corresponding to the Building Standard Law. For this purpose, it is necessary to have a structure that allows ventilation not only from the bathroom but also from the bathroom or toilet. In addition, the building standard law mandates that the ventilation volume of the entire residence be 0.5 times or more of the residential space volume, so the bathroom heater / dryer is also required to have a function to adjust the ventilation volume according to the size of the residence. It is necessary to control so as not to be affected by duct pressure loss from the bathroom heating dryer to the outside.

  When providing a desiccant dehumidifying function to such a bathroom heater / dryer that complies with the Building Standard Law, a technical breakthrough was necessary.

  The present invention has been made on the basis of recognition of such problems, and its purpose is to provide a bathroom heating dryer with a dehumidifying function capable of maintaining a stable dehumidifying performance while allowing ventilation of a washroom or a toilet. There is to do.

  In order to achieve the above object, according to an aspect of the present invention, a suction port that can be connected to a space other than a bathroom, and a ventilation fan can suck air in the space other than the bathroom through the suction port. A suction chamber, a dehumidification rotor, a circulation air passage that sucks air in the bathroom by a circulation fan and circulates the air in the bathroom through the dehumidification rotor, and the air in the bathroom is heated by a regenerative heater A regeneration air passage that can be taken out via a dehumidification rotor, and a first communication port that allows the regeneration air passage and the suction chamber to communicate with each other and discharges air taken out through the regeneration heater and the dehumidification rotor to the suction chamber. And a regeneration shutter that opens and closes the first communication port. A bathroom heating dryer with a dehumidifying function is provided.

  According to the above-described configuration, the ventilation fan that is always in an operating state to suck air from a washroom or a toilet through the suction port and exhaust the air from the suction chamber to the outside and perform ventilation for 24 hours is used. In addition to the ventilation of the bathroom and the toilet, the dehumidification rotor can be regenerated by opening and closing the regeneration shutter disposed at the first communication port that connects the bathroom and the suction chamber, and the ventilation of the air in the bathroom Can also be possible. Originally, in order to dehumidify the bathroom, washroom, and toilet in addition to heating, drying, and ventilation, a circulation fan and a fan for dehumidification rotor regeneration are required in addition to the ventilation fan. Although the size is increased, it is possible to reduce the size of the dehumidifying function bathroom heating dryer by reducing the number of fans for regenerating the dehumidifying rotor.

  Further, when the temperature of the hot air coming out from the first communication port is high, the temperature of the air discharged from the bathroom heating / drying machine with a dehumidifying function can be lowered because it is mixed with the air in the space other than the bathroom in the suction chamber. As a result, it can be installed at a site using a resin exhaust duct.

  In this case, if the regenerative shutter is configured such that the air volume discharged from the regenerative air path to the suction chamber can be adjusted by opening and closing, the regenerative air flow can be controlled regardless of the air volume (rotation speed) of the ventilation fan. It is possible to flow the air for regeneration with the optimum air volume on the road.

  The bathroom heater / dryer conforming to the Building Standard Law has different required air volume and exhaust duct pressure loss at each site. On the other hand, when the dehumidifying rotor is regenerated, it is necessary to make the regenerating heat amount and the regenerating air amount constant in order to obtain a certain dehumidifying capacity.

  According to the present invention, even when the rotational speed of the ventilation fan is different, the regeneration air volume can be made constant by adjusting the opening degree of the regeneration shutter.

  In order to ventilate from the bathroom in addition to the washroom and toilet, it is necessary to have a ventilation fan that can output a considerable amount of air, and ventilation for regeneration of the dehumidifying rotor is also necessary, so that the ventilation function of each room is achieved. However, in order to maintain a stable dehumidifying function, the capacity of the ventilation fan is limited. According to the present invention, by adjusting the opening / closing of the shutter for reproduction, it is possible to cope with efficient ventilation regardless of the capacity of the ventilation fan, and maintain a stable dehumidifying function while performing the function of ventilation for 24 hours. be able to.

  The regeneration shutter can be opened and closed according to the temperature after passing through the regeneration heater, the wind speed of the regeneration air passage, the output of the regeneration heater, or the state of the ventilation fan, etc. Can solve problems such as overheating and insufficient warming, and can always obtain a predetermined reproduction capability.

  In addition, if a second communication port that communicates the bathroom and the suction chamber is provided and a ventilation shutter that opens and closes the second communication port is further provided, the interior of the bathroom can be avoided without using a regenerative heater or a dehumidifying rotor. The air can be aspirated and ventilated. In other words, high exhaust conductance can be obtained and efficient ventilation can be achieved by not using a regenerative heater or a dehumidifying rotor.

  On the other hand, if the flow direction of the circulation air passage passing through the dehumidification rotor and the flow direction of the regeneration air passage passing through the dehumidification rotor are the same, the bathroom air is used as circulation air and regeneration air. When supplying to a dehumidification rotor, an air path can be comprised short and without bending. Therefore, since the air blowing capability of a fan motor for circulating air can be lowered, the fan can be miniaturized, and a slim and compact bathroom heating dryer with a dehumidifying function can be provided.

  In the circulation air passage, the circulation fan may be provided on the downstream side of the dehumidification rotor, and the heater may be provided on the downstream side of the circulation fan.

  As a result, the air in the bathroom is sucked by the circulation fan, heated by the heater, and sent out again into the bathroom to warm and dry the bathroom, as well as by the circulation fan provided downstream of the dehumidification rotor. Since the air sucked from the bathroom is passed through the warmed dehumidification rotor and this air is reheated by the heater, the drying performance can be further improved.

  According to the present invention, it is possible to provide a bathroom heater / dryer with a dehumidifying function capable of maintaining a stable dehumidifying performance while making it possible to ventilate a washroom or a toilet, and the industrial merit is great.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a conceptual diagram illustrating the overall configuration of a bathroom heating dryer with a dehumidifying function according to an embodiment of the present invention.
That is, the bathroom heater / dryer 1 with a dehumidifying function of the present embodiment includes a dehumidifying rotor 10, and a circulation air path 100 and a regeneration air path 200 that pass through the dehumidifying rotor 10 are formed. The dehumidifying rotor 10 can be rotated as necessary by a rotor rotating motor 60.

  The circulation air passage 100 is provided with a circulation fan 20 provided on the downstream side of the dehumidification rotor 10 and a heating heater 30 provided on the downstream side thereof. The circulation fan 20 sucks the air in the bathroom through the dehumidifying rotor 10 and sends it out into the bathroom through the heater 30 as indicated by the arrow D. By heating the heater 30, the inside of the bathroom can be heated.

  On the other hand, the regeneration air passage 200 is provided so as to pass through the regeneration portion of the dehumidification rotor 10. A regeneration heater 40 is provided on the upstream side of the regeneration portion of the dehumidifying rotor 10. In addition, a first communication port 202 is provided between the regeneration air passage 200 and the suction chamber 220, and can communicate with the suction chamber 220 via the regeneration shutter 82. The suction chamber 220 is provided with a ventilation fan 50, a suction port 210, and a discharge port 230. By the operation of the ventilation fan 50, air in a space other than the bathroom such as a washroom or a toilet is sucked through the suction port 210, and exhausted to the outdoors through the exhaust port 230. In addition, a second communication port 212 is provided between the suction chamber 220 and the bathroom space. When the ventilation shutter 80 is opened, the air in the bathroom is sucked into the suction chamber 220 and is opened to the outside through the discharge port 230. Exhaust is possible.

  When the regeneration shutter 82 is opened, the air in the bathroom heated by the regeneration heater 40 is sucked by the ventilation fan 50 through the dehumidification rotor 10, and the regeneration air path 200, the first communication port 202, the suction chamber 220, and the discharge port. It is discharged to the outside through 230. At this time, the heated air passes through the dehumidification rotor 10, and the dehumidification rotor 10 can be regenerated by evaporating moisture from the dehumidification rotor 10 containing moisture. As will be described in detail later, in the present invention, by adjusting the opening of the regeneration shutter 82, the regeneration heater 40 can be maintained at a constant temperature regardless of the amount of suction air from the ventilation fan 50. As a result, a stable regeneration capability can be obtained regardless of the installation site.

  The air sucked by the ventilation fan 50 via the rotor 10 has a high temperature, but is mixed with the air in the space such as a washroom and a toilet sucked from the suction port 210 in the suction chamber 220 and cooled, so that the exhaust air is exhausted. The temperature of the air exiting from the outlet 230 is low, and it is possible to cope with an exhaust duct constituted by a resin pipe.

  FIG. 2 is a schematic view illustrating a state in which the bathroom heating dryer with a dehumidifying function of this example is installed.

  That is, the bathroom heater / dryer 1 with a dehumidifying function is installed behind the ceiling of the bathroom 400. And the space of the washroom 500 and the toilet 600 is always sucked through the intake ducts 702 and 704 for 24 hours. The sucked air is discharged outside the room through the exhaust duct 706. Instead of providing a dedicated ventilation fan to ventilate the washroom 500, toilet 600, etc., the ventilation function also serves as a bathroom heater / dryer, thereby reducing the number of devices to be installed, and reducing the equipment cost and labor of installation. Can be reduced.

Drawing 3 is a mimetic diagram which illustrates the state where the bathroom heating dryer with a dehumidification function of this embodiment was installed in the bathroom.
As illustrated in the figure, the bathroom heater / dryer 1 of the present embodiment can be installed on the ceiling of many bathrooms 400 installed in a detached house or a condominium. And by utilizing the dehumidifying function, the laundry can be dried quickly and the mold in the bathroom can be effectively suppressed.

  Drawing 4 is a key map showing arrangement of an element in a bathroom heating dryer with a dehumidification function of this embodiment. In this figure, the same elements as those described above with reference to FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The air in the bathroom sucked in by the circulation fan 20 passes through the dehumidification rotor 10 and the heater 30 as shown by arrows A, B, C, and D, and is discharged again into the bathroom. On the other hand, the air in the bathroom sucked by the ventilation fan 50 is heated by the regenerative heater 40 as shown by arrows F, G, and H, passes through the dehumidification rotor 10, and regenerates the shutter 82 from the regenerative air path 200. It is discharged through. The circulation air passage 100 and the regeneration air passage 200 are partitioned by a partition 15 at the upper portion of the dehumidifying rotor 10.

  In an actual bathroom heater / dryer with a dehumidifying function, the circulation fan 20 and the ventilation fan 50 are not axial fans (propeller fans), but are configured as so-called “sirocco fans”. By using a sirocco fan, the thickness can be kept slim while securing a particularly large air flow.

  The dehumidifying rotor 10 is made of, for example, ceramic paper having a honeycomb structure, and a hygroscopic material such as zeolite or silica gel is supported on the surface thereof. The dehumidifying rotor 10 has a diameter of, for example, about 150 to 300 millimeters and a thickness of about 15 to 50 millimeters.

  In addition, as the heater 30 and the regenerative heater 40, it is desirable to use a PTC (positive temperature coefficient) heater from the viewpoint of safety and the like. The PTC heater has a self-temperature controllability because the electrical resistance value of the resistor increases as the temperature rises.

  During the dehumidifying operation, the air in the bathroom is sucked by the circulation fan 20 while rotating the dehumidifying rotor 10 in the direction of arrow R (or the opposite direction). The rotation speed can be, for example, about 0.5 rotations per minute. As shown in the flow of the arrow A through the dehumidifying rotor 10, the air containing moisture sucked from the bathroom is dehumidified by the hygroscopic material supported on the surface when passing through the dehumidifying rotor 10, and the dried air is It is sent into the bathroom via the circulation air passage 100.

At this time, the regeneration heater 40 is heated, the regeneration shutter 82 is opened, and suction is performed by the ventilation fan 50, so that the regeneration process of the dehumidifying rotor 10 is also performed. That is, by passing the air in the bathroom heated by the regenerative heater 40 through the dehumidifying rotor 10, the moisture absorbed by the hygroscopic material on the surface of the dehumidifying rotor 10 is released. The moisture-containing air is discharged to the outside from the regeneration air path 200 through the regeneration shutter 82.
Thus, the inside of the bathroom can be dehumidified continuously by dehumidifying in the circulation air passage 100 and regenerating in the regeneration air passage 200 while rotating the dehumidification rotor 10.

In the present embodiment, the regeneration heater 40 can always be maintained at a predetermined heating temperature by appropriately adjusting the opening of the regeneration shutter 82 during regeneration.
5 and 6 are schematic diagrams for explaining the operation of the playback shutter 82. FIG.
That is, during the regeneration of the dehumidifying rotor 10, the opening degree of the regeneration shutter 82 can be reduced as illustrated in FIG. 5, and can be increased as illustrated in FIG. As illustrated in FIG. 5, when the opening degree of the regeneration shutter 82 is small, the conductance of the communication path from the dehumidification rotor 10 to the ventilation / regeneration air path 200 is small, so that the amount of air passing through the regeneration heater 40 decreases. . On the other hand, as illustrated in FIG. 6, when the opening degree of the regeneration shutter 82 is large, the conductance of the communication path to the ventilation / regeneration air path 200 increases, so the amount of air passing through the regeneration heater 40 increases.

Thus, by controlling the amount of air passing through the regenerative heater 40, it becomes possible to always maintain the heat generation amount generated in the regenerative heater 40 at a predetermined level.
FIG. 7 is a graph illustrating the relationship between the amount of air passing through the PTC heater used as the regenerative heater 40 and its power consumption (heat amount).
As described above, it is desirable to use a PTC (positive temperature coefficient) heater as the regenerative heater 40 from the viewpoint of safety and the like. The PTC heater has a positive coefficient of change in electrical resistance with respect to temperature. That is, as the temperature increases, the electrical resistance increases and overheating is automatically suppressed. Therefore, the PTC heater is normally used by applying a constant voltage (for example, AC 100 volts).

  However, when a constant voltage is applied to the PTC heater and used, as illustrated in FIG. 7, the amount of heat consumed by the heater varies with the amount of air passing therethrough. This is an electrical characteristic that controls the power so that the PTC heater maintains a certain temperature. When the air volume increases, the amount of heat taken by the wind increases, and the power consumption of the PTC heater increases to prevent the heater temperature from decreasing. Because. That is, when the air volume changes, the amount of heat generated by the heater changes, and the regeneration capacity of the dehumidifying rotor 10 changes. Specifically, if the air volume is large, the amount of heat consumed increases and the temperature of the regenerating part of the dehumidifying rotor 10 becomes too high. On the other hand, if the air volume is small, the amount of heat consumed decreases and the temperature of the regenerating part of the dehumidifying rotor 10 decreases. In some cases, the playback ability may be insufficient.

  On the other hand, a method of adjusting the amount of air passing through the regenerative heater 40 by controlling the rotational speed of the ventilation fan 50 is also conceivable. However, when a bathroom or toilet is ventilated by the ventilation fan 50, it is necessary to always operate for 24 hours with a ventilation amount of 0.5 times the volume of residential space per hour based on the Building Standard Law. The That is, the amount of suction air (or the number of rotations) of the ventilation fan 50 is determined by the volume of the residence space where the equipment is installed, the pressure loss of the installed exhaust duct, and the like.

  Therefore, according to the present embodiment, by controlling the opening degree of the regeneration shutter 82, the amount of air passing through the regeneration heater 40 is adjusted, and the power consumption (heat amount) of the regeneration heater 40 is controlled to a constant level. . That is, the opening degree of the regeneration shutter 82 is feedback-controlled so that the power consumption of the regeneration heater 40 is maintained at a predetermined level. As a result, the amount of heat given to the regeneration unit of the dehumidifying rotor 10 can be maintained at a predetermined level, and a predetermined regeneration capability is always obtained regardless of the installation site.

FIG. 8 is a block diagram illustrating a control structure of the bathroom heating dryer with a dehumidifying function of this embodiment.
That is, operations of the circulation fan 20, the regeneration heater 40, the regeneration shutter 82 and the like are controlled by the control unit 12. In this embodiment, the temperature detected by the thermistor 42 after passing through the regenerative heater 40, the detected air speed of the air speed sensor 45 in the regenerative air path, the output of the regenerative heater 40, the air volume of the ventilation fan 50, and the like are monitored. Based on this, the opening degree of the playback shutter 82 can be feedback-controlled.

  Note that there may be at least one target to be monitored.

FIG. 9 is a block diagram illustrating a configuration for adjusting the playback shutter 82.
That is, in this specific example, the control unit 12 is provided with an electric energy detection unit 12A, a ventilation air volume calculation unit 50A, a wind speed sensor 45, a thermistor 42, a calculation unit 12B, and a shutter control unit 12C. . The power amount detection unit 12A detects the power consumption amount of the regenerative heater 40 and outputs the result to the calculation unit 12B. The ventilation air volume calculation unit 50A calculates the ventilation air volume from the rotation speed and input / output state of the ventilation fan 50, and outputs the result to the calculation unit 12B. Further, the wind speed sensor 45 outputs the wind speed of the regenerative air path, and the thermistor 42 outputs the temperature after passing through the regenerative heater 40 to the calculation unit 12B. The calculation unit 12B determines a control parameter for controlling the opening degree of the regeneration shutter 82 based on information output from the power amount detection unit 12A, the ventilation air volume calculation unit 50A, the wind speed sensor 45, the thermistor 42, and the like. The parameter is output to the shutter control unit 12C. Note that the information used by the calculation unit 12B to determine the control parameter may be at least one of those described above. The shutter controller 12C adjusts the opening of the playback shutter 82 based on the control parameter output from the calculator 12B. As the calculation executed in the calculation unit 12B, various modes such as those according to P (proportional) control and those according to PID (proportional / integral / differential) control can be adopted.

  In this way, even when the rotational speed of the ventilation fan 50 is appropriately changed according to the installation site, or when the size (air volume) of the ventilation fan 50 is changed according to the installation site, the regeneration shutter 82 is used. By adjusting the opening degree, the air volume passing through the regenerative heater 40 can always be maintained at an optimum level. As a result, the heat consumption of the regenerative heater 40 can always be maintained at a predetermined level, and the desired regenerative capacity can be stably obtained.

Furthermore, according to the present embodiment, the direction of the flow of the circulation air path 100 passing through the dehumidification rotor 10 and the direction of the flow to the regeneration air path 200 are the same direction.
FIG. 10 is a schematic diagram for explaining the flow direction of the air passing through the dehumidifying rotor 10. That is, in the circulation air passage 100, air passes in the direction indicated by the arrows A and B by the circulation fan 20 provided on the downstream side of the dehumidification rotor 10. On the other hand, also in the regeneration air passage 200, air passes in the direction indicated by the arrows F and G by the ventilation fan 50 provided on the downstream side of the dehumidifying rotor 10.

  Thus, by making the flow of air passing through the dehumidification rotor 10 in the same direction, air leakage in the partition 15 can be reduced. That is, it is necessary to provide a certain gap (clearance) between the dehumidification rotor 10 and the partition 15 so as not to hinder the smooth rotation of the dehumidification rotor 10. However, if air leaks here, there arises a problem that the efficiency of dehumidification and regeneration is reduced.

  FIG. 11 is a schematic view illustrating a dehumidifying mechanism of a comparative example examined by the present inventors. That is, in the case of this comparative example, the air flow in the circulation air passage 100 (arrow A) and the heated air flow in the regeneration air passage 200 (arrow F) are in opposite directions in the dehumidifying rotor 10. That is, the circulation fan 20 and the ventilation fan 50 are provided on the opposite side across the dehumidification rotor 10 and suck air in the opposite directions. In this way, the pressure difference between the circulation air passage 100 and the regeneration air passage 200 is increased. For example, since pressure loss occurs in the dehumidifying rotor 10, the pressure P 1 on the upstream side of the dehumidifying rotor 10 in the circulation air path 100 is higher than the pressure P 2 on the downstream side of the regeneration air path 200. For this reason, air leaks in the direction of the arrow L1 in the gap of the partition 15.

  Similarly, the pressure P3 on the downstream side of the dehumidification rotor 10 in the circulation air path 100 is lower than the pressure P4 on the upstream side of the regeneration air path 200. For this reason, air leaks in the direction of the arrow L2 in the gap of the partition 15.

  Thus, when a leak occurs in the partition 15, the efficiency of dehumidification and regeneration decreases. In other words, when a leak occurs in the direction of the arrow L2, the regeneration heating air is mixed into the circulation air passage 100, and the regeneration heat to the dehumidification rotor 10 is decreased. Therefore, the regeneration efficiency and the dehumidification efficiency are decreased.

  On the other hand, in this embodiment, as shown in FIG. 10, the air flow in the dehumidification rotor 10 of the circulation air passage 100 and the regeneration air passage 200 can be in the same direction. If it does in this way, the pressure loss in the dehumidification rotor 10 will also generate | occur | produce in the same direction, and the difference of the pressure of the circulation air path 100 and the reproduction | regeneration air path 200 becomes small. That is, the difference between the pressure P1 of the circulation air passage 100 and the pressure P2 of the regeneration air passage 200 is small, and the occurrence of leakage in the gap of the partition 15 can be suppressed. As a result, it is possible to prevent the dehumidification efficiency and the regeneration efficiency from being lowered and to operate efficiently.

  Further, by making the air flow in the dehumidification rotor 10 in the circulation air path 100 and the regeneration air path 200 the same direction, air is uniformly taken into the dehumidification rotor and the regeneration heater 40, and air is uniformly taken into the regeneration heater 40. Thus, the air for regeneration heated uniformly can be sent to the dehumidifying rotor 10.

Hereinafter, the operation of the bathroom heating dryer with a dehumidifying function of the present embodiment (hereinafter simply referred to as “bathroom heating dryer”) will be described with a specific example.
FIG. 12 is a schematic view illustrating an operation panel of a remote controller that operates the bathroom heating dryer of this embodiment.
That is, the bathroom heating / drying machine of the present embodiment has operation modes such as “ventilation”, “clothing drying”, “bathroom dehumidification”, “heating”, “cool air”, and the like. Hereinafter, each operation mode will be described.

FIG. 13 is a flowchart illustrating an operation mode of “ventilation”.
FIG. 14 is a schematic diagram of the bathroom heater / dryer in this operation mode.

  That is, in the “ventilation” mode, the ventilation shutter 80 is opened (step S101), the regeneration shutter 82 is closed (step S102), and the ventilation fan 50 is operated (step S103). In addition, since the ventilation fan 50 always exhausts a washroom, a toilet, etc., it is already in the state already operated normally. At this time, the circulation fan 20, the heater 30 and the regenerative heater 40 are not operated.

  In this state, the air in the bathroom is sucked into the ventilation fan 50 through the second communication port 212 along the path indicated by the arrow E in FIG. 14 and discharged to the exhaust duct as indicated by the arrow H. At this time, fresh outside air is introduced into the bathroom, for example, from a ventilation slit provided in a window or door, and ventilated. At the same time, the air sucked from the bathroom or the toilet as indicated by the arrow I by the ventilation fan 50 is discharged to the outside through the ventilation / regeneration air passage 200 as indicated by the arrow H.

  The bathroom can be ventilated by opening the regeneration shutter 82 instead of the ventilation shutter 80. However, when the air is ventilated through the ventilation shutter 80, it is advantageous in that the air in the bathroom can be sucked and ventilated without using a regenerative heater or a dehumidifying rotor. In other words, high exhaust conductance can be obtained and efficient ventilation can be achieved by not using a regenerative heater or a dehumidifying rotor.

FIG. 15 is a flowchart illustrating an example of operation modes of “clothing drying” and “bathroom dehumidification”.
FIG. 16 is a schematic diagram of the bathroom heater / dryer in this operation mode.

  That is, in the “clothing drying” and “bathroom dehumidification” operation modes, the ventilation shutter 80 is in a half-open state (step S111), the regeneration shutter 82 is closed (step S112), and the ventilation fan 50 and the circulation fan. 20 are respectively operated (steps S113 and S114). Then, the heater 30 is energized (step S115).

  That is, the interior of the bathroom is heated via the circulation air passage 100 while partially ventilating via the ventilation shutter 80. When the interior of the bathroom is heated, moisture evaporates and is discharged to the outside through the ventilation shutter 80, whereby the humidity in the bathroom can be lowered.

FIG. 17 is a flowchart illustrating another aspect of the operation modes of “clothing drying” and “bathroom dehumidification”.
FIG. 18 is a schematic diagram of the bathroom heater / dryer in this operation mode.

  In this operation mode, the ventilation shutter 80 is closed (step S121), the regeneration shutter 82 is opened (step S122), and the ventilation fan 50 and the circulation fan 20 are operated (steps S123 and S124). Then, the dehumidification rotor is rotated (step S125), and the regeneration heater 40 is energized (step S126).

That is, by passing the air in the bathroom through the circulation air passage 100 to the dehumidification rotor 10, moisture is adsorbed to the dehumidification rotor 10. On the other hand, as indicated by arrows F, G, H, the regenerative heater 40 is The dehumidification rotor 10 is heated by the air that has passed, and the released water is discharged by the ventilation fan 50 via the ventilation / regeneration air passage 200. At this time, as described above with reference to FIGS. 5 to 9, the power consumption of the regeneration heater 40 is monitored, and the opening degree of the regeneration shutter 82 is feedback-controlled based on the result. In this way, the regeneration heater 40 is generated regardless of the air volume (or the number of rotations) of the ventilation fan 50 and even when the suction air volume from the bathroom or toilet that is ventilating at the same time fluctuates for some reason. The amount of heat is always maintained at a predetermined level, and a stable regeneration capability is maintained.
In addition, as illustrated in FIG. 19, the heater 30 may be energized in this operation mode (step S127).

  The operation modes shown in FIGS. 15 and 16 and the operation modes shown in FIGS. 17 to 19 can be appropriately used depending on, for example, the relative humidity in the bathroom. For example, when a humidity sensor is provided in a bathroom heater / dryer and the relative humidity exceeds 60%, the operation mode shown in FIGS. 15 and 16 is selected. When the relative humidity is 60% or less, FIGS. The operation mode shown in FIG. 19 can be selected. This is because when the relative humidity is high, it is possible to lower the humidity more rapidly by using both ventilation and heating than when using the dehumidifying function.

FIG. 20 is a flowchart illustrating an operation mode of “heating”.
FIG. 21 is a schematic diagram of the bathroom heater / dryer in this operation mode.

  In this operation mode, both the ventilation shutter 80 and the reproduction shutter 82 are closed (steps S131 and S132). Then, the circulation fan 20 is turned (step S133), and the heater 30 is energized (step S134). At this time, the regenerative heater 40 is not operated. That is, heating is performed by circulating hot air in the bathroom. Even in this state, the air sucked by the ventilation fan 50 from the bathroom or the toilet as indicated by the arrow I is discharged to the outside through the ventilation / regeneration air passage 200 as indicated by the arrow H.

FIG. 22 is a flowchart illustrating the “cool breeze” operation mode.
FIG. 23 is a schematic diagram of the bathroom heater / dryer in this operation mode.

  In this operation mode, the ventilation shutter 80 is in a half-open state (step S141), and the playback shutter 82 is closed (step S142). Then, the ventilation fan 50 and the circulation fan 20 are turned (steps S143 and S144). At this time, the heater 30 and the regenerative heater 40 are not energized. In other words, cool air is circulated while partially ventilating the bathroom.

  Even in this operation mode, the air sucked from the bathroom or the toilet as indicated by the arrow I by the ventilation fan 50 is discharged to the outside through the ventilation / regeneration air passage 200 as indicated by the arrow H. .

As described above, according to the present invention, the ventilation fan 50 performs continuous ventilation such as a washroom and a toilet, while the bathroom heating dryer includes “ventilation”, “clothing drying”, “bathroom dehumidification”, Operation modes such as “heating” and “cool wind” can be reliably executed. In the operation mode of “clothing drying” or “bathroom dehumidification”, the power consumption of the regenerative heater is monitored, and the opening degree of the regenerative shutter 82 is feedback-controlled based on the result. Regardless of (or the number of revolutions), the amount of heat generated by the regenerative heater 40 is always maintained at a predetermined level, and a stable regenerative capacity is maintained. In addition, even when the amount of air sucked from a bathroom or toilet that is ventilated at the same time fluctuates due to the opening or closing of doors or windows, the amount of heat generated by the regenerative heater 40 is always maintained at a predetermined level, and stable regenerative capacity is maintained. Is maintained.
The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. For example, the dehumidification rotor 10, the circulation fan 20, the heating heater 30, the regenerative heater 40, the ventilation fan 50, the rotor rotation motor 60, the ventilation shutter 80, and the regeneration shutter 82 that constitute the bathroom heater / dryer with a dehumidifying function of the present invention. As for the shape, structure, material, size, arrangement relationship, etc. of each element including the above, the person skilled in the art can implement the present invention in the same manner by appropriately changing the design, and the same effect can be obtained. As long as the gist of the present invention is included, it is included in the scope of the present invention.

  In addition, based on the above-described bathroom heating dryer with a dehumidifying function as an embodiment of the present invention, all bathroom heating dryers with a dehumidifying function that can be appropriately designed and implemented by those skilled in the art are also within the scope of the present invention. Belonging to.

It is a conceptual diagram which illustrates the whole structure of the bathroom heating dryer with a dehumidification function concerning embodiment of this invention. It is a schematic diagram which illustrates the state which installed the bathroom heating dryer with a dehumidification function of the specific example of this invention. It is a schematic diagram which illustrates the state which installed the bathroom heating dryer with a dehumidification function of embodiment of this invention in a bathroom. It is a conceptual diagram showing arrangement | positioning of the element in the bathroom heating dryer with a dehumidification function of embodiment of this invention. FIG. 6 is a schematic diagram for explaining the operation of a playback shutter 82; FIG. 6 is a schematic diagram for explaining the operation of a playback shutter 82; 4 is a graph illustrating the relationship between the amount of air passing through a PTC heater used as the regenerative heater 40 and the amount of heat consumed. FIG. It is a block diagram which illustrates the control structure of the bathroom heating dryer with a dehumidification function of embodiment of this invention. 3 is a block diagram illustrating a configuration for adjusting a playback shutter 82. FIG. 4 is a schematic diagram for explaining the flow direction of air passing through the dehumidifying rotor 10. FIG. It is a schematic diagram which illustrates the dehumidification mechanism of the comparative example which this inventor examined. It is a schematic diagram which illustrates the operation panel of the remote control which operates the bathroom heating dryer of embodiment of this invention. It is a flowchart which illustrates the operation mode of "ventilation". It is a schematic diagram of the bathroom heating dryer in the operation mode of “ventilation”. It is a flowchart which illustrates one aspect | mode of the operation mode of "clothing drying" and "bathroom dehumidification." It is a schematic diagram of the bathroom heating dryer in the operation mode of “clothing drying” and “bathroom dehumidification”. It is a flowchart which illustrates another one mode of an operation mode of "clothing drying" and "bathroom dehumidification." It is a schematic diagram of the bathroom heating dryer in the operation mode of “clothing drying” and “bathroom dehumidification”. 12 is a flowchart illustrating still another aspect of the operation modes of “clothing drying” and “bathroom dehumidification”. It is a flowchart which illustrates the operation mode of "heating." It is a schematic diagram of the bathroom heating dryer in the operation mode of “heating”. It is a flowchart which illustrates the operation mode of "cool wind". It is a schematic diagram of the bathroom heating dryer in the operation mode of “cool wind”.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathroom heating dryer with a dehumidification function 10 Dehumidification rotor 15 Partition 20 Circulation fan 30 Heating heater 40 Regeneration heater 42 Thermistor 45 Air speed sensor 50 Ventilation fan 60 Motor for rotor rotation 80 Ventilation shutter 82 Regeneration shutter 100 Circulation air path 200 Regeneration air Road 202 First communication port 210 Suction port 212 Second communication port 220 Suction chamber 230 Discharge port 400 Bathroom 500 Washroom 600 Toilet 702 Intake duct 706 Exhaust duct

Claims (6)

A suction port that can be connected to a space other than the bathroom;
A suction chamber capable of sucking air in a space other than the bathroom through the suction port by a ventilation fan;
A dehumidifying rotor;
A circulation air passage that sucks air in the bathroom by a circulation fan and circulates the air in the bathroom through the dehumidifying rotor;
A regenerative air passage that can be taken out through the dehumidification rotor after heating the air in the bathroom by a regenerative heater;
A first communication port for communicating the regeneration air passage with the suction chamber and for discharging the air taken out through the regeneration heater and the dehumidifying rotor to the suction chamber;
A playback shutter for opening and closing the first communication port;
A bathroom heating dryer with a dehumidifying function.   The bathroom heater / dryer with a dehumidifying function according to claim 1, wherein the regeneration shutter is configured to be able to adjust an amount of air discharged from the regeneration air passage to the suction chamber by opening and closing.   3. The regeneration shutter is opened and closed according to the temperature after passing through the regeneration heater, the wind speed of the regeneration air passage, the output of the regeneration heater or the state of the ventilation fan, etc., and adjusts the air volume. Bathroom heating dryer with dehumidifying function.   4. The apparatus according to claim 1, further comprising: a second communication port that communicates the bathroom and the suction chamber, and further includes a ventilation shutter that opens and closes the second communication port. Bathroom heating dryer with dehumidifying function.   5. The flow direction of the circulating air passage passing through the dehumidification rotor and the flow direction of the regenerating air passage passing through the dehumidification rotor are the same. 5. Bathroom heating dryer with the dehumidifying function described. 6. The circulating air passage according to claim 1, wherein the circulating fan is provided downstream of the dehumidifying rotor, and a heater is provided downstream of the circulating fan. The bathroom heating dryer with the dehumidifying function described in 1.

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