Bathroom fixtures

The bathroom apparatus addresses the inefficacy of conventional devices by integrating mist and ion generation systems to suppress both Cladosporium and Rhodotorula fungi, ensuring effective stain prevention and energy efficiency.

JP7864005B2Active Publication Date: 2026-05-22RINNAI CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
RINNAI CORP
Filing Date
2022-04-28
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Conventional bathroom devices are ineffective in suppressing the growth of Rhodotorula bacteria, which cause pink stains, due to their stronger reproductive ability compared to Cladosporium fungi, and are energy-inefficient and inconvenient for frequent operations.

Method used

A bathroom apparatus with a heat source, blower, ventilation, mist nozzle, humidity detection, and ion generation system, which performs hot water mist spraying, drying, and ion supply operations to suppress fungal growth, with ion generation controlled based on humidity levels to prevent stains and reduce energy consumption.

Benefits of technology

Effectively prevents both black and pink stains by targeting Cladosporium and Rhodotorula fungi, while optimizing energy use and extending ion generator durability through controlled ion supply operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a bathroom which can suppress the proliferation of Rhodotorula in a bathroom and can prevent occurrence of pinkish stains.SOLUTION: A bathroom 1 includes a heat source 3, blowing means 7, ventilation means 20, a mist nozzle 8, humidity detection means 19, ion generation means 11, and control means 30. The control means 30 includes a warm water mist spray control part for executing warm water mist spray operation of spraying warm water mist into a bathroom from the mist nozzle 8, a dry operation control part for executing dry operation of sucking air in the bathroom by the blowing means 7 while ventilating the bathroom by the ventilation means 20, blowing out the air heated by the heat source 3 into the bathroom, and drying the bathroom with warm water, after completion of the warm water mist spray operation, for predetermined time, and an ion supply control part for executing first ion supply operation of operating the ion generation means 11 and supplying positive ions and negative ions into the bathroom, and executes first ion supply operation on either or both of execution of during the dry operation and after stopping of the dry operation, when a predetermined condition is satisfied during the execution of the dry operation.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a bathroom device for suppressing the growth of fungi in a bathroom.

Background Art

[0002] Conventionally, as this type of bathroom device, there has been proposed a device having a function of making the walls and air in the bathroom at a temperature and humidity where mold does not occur by spraying mist in the bathroom (see Patent Document 1 below).

[0003] It is known that black stains in the bathroom are caused by fungi of the genus Cladosporium called black mold. The above conventional bathroom device makes the bathroom at high temperature and high humidity by the mist sprayed in the bathroom, and suppresses the growth of fungi of the genus Cladosporium by the temperature and humidity shock at this time. Thereby, black stains in the bathroom can be prevented.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, stains in the bathroom include not only those caused by black mold such as fungi of the genus Cladosporium, but also those called pink stains. The causative bacterium of pink stains is Rhodotorula.

[0006] Rhodotorula has a stronger reproductive ability than fungi of the genus Cladosporium, and it is difficult to suppress the growth of Rhodotorula by the same method as that for fungi of the genus Cladosporium.

[0007] In view of the above, the present invention aims to provide a bathroom device that not only prevents the occurrence of black stains caused by Cladosporium fungi in bathrooms, but also suppresses the growth of Rhodotorula in bathrooms to prevent the occurrence of pink stains, and is highly convenient for the user. [Means for solving the problem]

[0008] To achieve this objective, the present invention provides a bathroom apparatus comprising a heat source for heating the air in the bathroom, a blower for drawing in air from the bathroom and blowing the drawn air back into the bathroom to circulate the air, and a ventilation for exhausting the air from the bathroom to the outside for ventilation, wherein the apparatus comprises a mist nozzle facing into the bathroom, a hot water supply channel for supplying hot water to the mist nozzle, a humidity detection means for detecting the humidity in the bathroom, an ion generating means for generating positive and negative ions, and a control means, wherein the control means executes a hot water mist spraying operation for spraying hot water mist into the bathroom from the mist nozzle. The system comprises a spray control unit, a drying operation control unit that, after the completion of the hot water mist spraying operation, ventilates the bathroom with the ventilation means, the blower means draws in air from the bathroom, heats the air with a heat source, and blows it into the bathroom to dry the bathroom with hot air for a predetermined time, and an ion supply control unit that operates the ion generating means to supply positive and negative ions into the bathroom for a first ion supply operation, wherein when predetermined conditions are met during the execution of the drying operation, the first ion supply operation is executed either during the execution of the drying operation or after the drying operation has stopped, or both.

[0009] According to the present invention, the hot water mist spray control unit of the control means performs a hot water mist spraying operation in which hot water mist is sprayed into the bathroom, thereby suppressing the growth of fungi in the bathroom, particularly Cladosporium fungi, and preventing the occurrence of black stains in the bathroom. After the hot water mist spraying operation is completed, the drying operation control unit of the control means performs a drying operation in the bathroom for a predetermined time, and the control device performs a first ion supply operation via the ion supply control unit. By performing the first ion supply operation, positive and negative ions suppress the growth of Rhodotorula, and the occurrence of pink stains in the bathroom can be prevented.

[0010] Thus, according to the present invention, it is possible to prevent the occurrence of black stains caused by Cladosporium fungi and pink stains caused by Rhodotorula in the bathroom. In addition, for the user, when the hot water mist spraying operation is performed, the drying operation and the first ion supply operation are also performed at the same time, so the occurrence of black stains and pink stains in the bathroom can be suppressed at the same time, and the user can enjoy great convenience.

[0011] Furthermore, the present invention is characterized in that the first ion supply operation is performed when predetermined conditions are met during the execution of the drying operation, and the predetermined conditions are when the humidity in the bathroom detected by the humidity detection means is less than a predetermined value.

[0012] If the specified conditions are met during the drying cycle, an ion supply operation can be performed after the drying cycle stops to suppress the growth of Rhodotorula and prevent the occurrence of pink stains in the bathroom. Furthermore, while ion generating means generate positive and negative ions through discharge, performing discharge in a high-humidity environment may lead to a decrease in ion concentration or corrosion and deterioration of the discharge electrode. In the present invention, the first ion supply operation is performed when the humidity in the bathroom detected by the humidity detection means is below a predetermined value. This allows for efficient generation of positive and negative ions, prevents corrosion and deterioration of the discharge electrode, and improves the durability of the ion generating means. Furthermore, since the first ion supply operation is performed in parallel with the drying operation, the first ion supply operation can be completed earlier compared to when the first ion supply operation is started after the drying operation has stopped, further improving user convenience.

[0013] Furthermore, in the present invention, the ion supply control unit is capable of performing a second ion supply operation in which the ion generating means is operated under different execution conditions from the first ion supply operation to supply positive and negative ions into the bathroom, and it is preferable that the control means includes an operation time control unit that causes the second ion supply operation to be performed at predetermined time intervals or at predetermined times.

[0014] According to this, by pre-setting the time interval or the time of day for the second ion supply operation, the second ion supply operation can be performed at a suitable timing that suppresses the proliferation of Rhodotorula, even when the hot water mist spray operation is not performed.

[0015] Furthermore, Rhodotorula has a greater reproductive capacity than Cladosporium fungi. Therefore, it is necessary to frequently perform ion supply operations to suppress the growth of Rhodotorula. For this reason, if the hot water mist spraying operation is also performed before the first ion supply operation, the hot water mist spraying operation, which generates hot water mist, consumes relatively large amounts of energy, resulting in high running costs and being uneconomical, as well as taking time. On the other hand, the second ion supply operation, which generates positive and negative ions, consumes less energy and takes less time than performing both the hot water mist spraying operation and the first ion supply operation. This invention is economical because it suppresses the growth of Rhodotorula by performing a second ion supply operation, thereby reducing running costs.

[0016] Furthermore, the present invention relates to a bathroom apparatus comprising a heat source for heating the air in the bathroom, a blower for drawing in the air in the bathroom and blowing the drawn-in air back into the bathroom to circulate the air in the bathroom, and a ventilation means for exhausting the air in the bathroom to the outside for ventilation, wherein the apparatus comprises a mist nozzle facing into the bathroom, a hot water supply passage for supplying hot water to the mist nozzle, an ion generating means for generating positive and negative ions, a hot water mist spray control unit for performing a hot water mist spray operation for spraying hot water mist into the bathroom from the mist nozzle, and a control means, wherein the control means comprises a drying operation control unit for performing a drying operation for a predetermined time in which the blower draws in the air in the bathroom and blows the air heated by the heat source back into the bathroom while the ventilation means ventilates the bathroom, a second ion supply operation for operating the ion generating means to supply positive and negative ions into the bathroom, and an operation time control unit for performing the second ion supply operation at predetermined time intervals or at predetermined times.

[0017] According to the present invention, the growth of Cladosporium fungi is suppressed by hot water mist spraying operation, and the ion supply control unit performs a second ion supply operation, thereby suppressing the growth of Rhodotorula with positive and negative ions, and preventing the occurrence of black and pink stains in the bathroom. Furthermore, the operation time control unit performs the second ion supply operation at preset time intervals or at preset times, so the second ion supply operation can be performed at a suitable timing to suppress the growth of Rhodotorula. [Brief explanation of the drawing]

[0018] [Figure 1] A diagram showing the system configuration of an apparatus according to one embodiment of the present invention. [Figure 2] A perspective view showing the front panel of the device according to this embodiment. [Figure 3] A flowchart illustrating the operation of the device according to this embodiment. [Figure 4] A flowchart showing the operation following Figure 3.

BEST MODE FOR CARRYING OUT THE INVENTION

[0019] An embodiment of the present invention will be described based on the drawings. As shown in FIG. 1, the bathroom apparatus 1 of this embodiment is a bathroom heating apparatus with a so-called mist sauna function, and includes a main body unit 2 installed on the ceiling or the like of the bathroom, and a heat source machine 3 (heat source) installed outdoors or the like.

[0020] Although the specific configuration of the heat source machine 3 is not shown, it is a known combustion water heater that includes a burner and a heat exchanger and heats the heating medium and the water for hot water supply respectively. Further, in this embodiment, hot water is used as the heating medium for heating.

[0021] The main body unit 2 includes a hot water circulation passage 4 that circulates hot water as a heating medium between the heat source machine 3. Further, the main body unit 2 includes a mist water passage 5 (hot water supply passage) through which water for mist (water heated to be atomized) sprayed into the bathroom flows. The mist water passage 5 is a water passage branched from the water supply passage 6 of the heat source machine 3.

[0022] Furthermore, the main body unit 2 includes a blower 7 (blowing means) that blows air into the bathroom, a plurality (two in this embodiment) of mist nozzles 8 that atomize the water supplied from the mist water passage 5 and spray it into the bathroom, a heating heat exchanger 9 that heats the air blown into the bathroom by the blower 7 through heat exchange with hot water, a liquid-liquid type mist heat exchanger 10 that heats the water supplied to the mist nozzles 8 in the mist water passage 5 through heat exchange with hot water, and an ion generator 11 (ion generation means) that generates positive ions and negative ions.

[0023] Reference numeral 2a is the casing of the main body unit 2 installed on the ceiling back of the bathroom. As shown in FIG. 2, a front panel portion 12 exposed from the ceiling of the bathroom into the bathroom is provided on the lower surface of the casing 2a.

[0024] The front panel section 12 is provided with an intake grille 13 for drawing air from the bathroom into the casing 2a, and a louver 14 that forms an outlet for blowing heated air (hot air) into the bathroom.

[0025] The louver 14 can open and close the hot air outlet and also change the direction of hot air (airflow direction) directed towards the bathroom. As shown in Figure 1, the louver 14 is rotated within a predetermined range of rotation angles by a louver drive motor 15 located inside the casing 2a. This makes it possible to change the direction of hot air directed towards the bathroom according to the rotation angle of the louver 14.

[0026] As shown in Figure 2, the mist nozzle 8 is positioned exposed near the louvers 14, and the ion generator 11 is positioned inside the casing 2a near the upstream side of the louvers 14.

[0027] As shown in Figure 1, the blower 7 consists of two fans 16 and a fan motor 17 for coaxially rotating both fans 16. The blower 7 draws air from the bathroom into the casing 2a through the intake grille 13 (see Figure 2) by the rotation of the fans 16, and blows the drawn-in air into the bathroom through the outlet of the louver 14.

[0028] A heating heat exchanger 9 is positioned in the air passage from the intake grille 13 to the outlet of the louver 14 within the casing 2a. A room temperature sensor 18 is positioned near the entrance of the air passage (near the intake grille 13) to detect the bathroom room temperature from the air drawn in by the blower 7. Furthermore, the main unit 2 is equipped with a humidity sensor 19 (humidity detection means) to detect the humidity inside the casing 2a.

[0029] Furthermore, although not shown in the diagram, the ion generator 11 includes a positive electrode section that generates positive ions (for example, H+(H2O)m (where m is any natural number)) and a negative electrode section that generates negative ions (O2-(H2O)n (where n is any natural number)). When the fan 16 of the blower 7 is operated and positive and negative ions are simultaneously generated from the ion generator 11, the positive and negative ions are diffused into the bathroom by the airflow generated by the fan 16.

[0030] An exhaust duct 20 (ventilation means) is connected to the casing 2a. When ventilating the bathroom, etc., by operating the airflow switching damper and fan 16 (not shown), it is possible to direct some or all of the air drawn into the bathroom from the intake grille 13 to the exhaust duct 20.

[0031] The hot water circulation channel 4 is equipped with a heating water temperature sensor 21 for detecting the temperature of the hot water flowing into the heating heat exchanger 9, and a liquid-liquid water temperature sensor 22 for detecting the temperature of the hot water flowing into the mist heat exchanger 10.

[0032] Furthermore, a flow control valve 23 is installed downstream of the mist heat exchanger 10 in the hot water circulation channel 4 to control the flow rate of hot water flowing through the hot water circulation channel 4.

[0033] The mist water channel 5, introduced into the casing 2a of the main unit 2, is arranged to reach the mist nozzle 8 via a liquid-liquid heat exchanger 10 for mist. Upstream of the heat exchanger 10 in the mist water channel 5, a check valve 24 and a solenoid valve 25 are provided, and an overpressure relief valve 26 for preventing overpressure is provided in parallel with the solenoid valve 25.

[0034] A solenoid valve 27 for opening and closing the mist water channel 5 is installed downstream of the mist heat exchanger 10 in the mist water channel 5. Furthermore, an overpressure relief valve 28 is installed in the drainage channel for overpressure prevention that is led out from the upstream side of the solenoid valve 27.

[0035] Furthermore, a mist temperature sensor 29 is provided in the mist water channel 5 downstream of the mist heat exchanger 10 to detect the temperature of the water supplied from the mist heat exchanger 10 to the mist nozzle 8.

[0036] Furthermore, an operation control device 30 (control means) consisting of an electronic circuit unit for operation control is provided inside the casing 2a of the main unit 2, and a remote control 31 is provided outside the main unit 2.

[0037] The remote control 31 is placed inside the bathroom or in a dressing room adjacent to the bathroom. Through its operation (switch operation, etc.), the remote control 31 can be used to turn on and off various operations that can be performed by the bathroom device 1, such as mist sauna operation, heating operation, ventilation operation, drying operation, reproduction suppression operation (hot water mist spraying operation), and ion supply operation (execution and stopping of said operation), set the direction of airflow of the louvers 14, set the heating temperature of the bathroom, and set the airflow of the blower 7.

[0038] The operation control device 30 is configured to communicate various setting data, command data, etc., via wired or wireless means with a control device (not shown) mounted on the heat source unit 3 and a remote control 31 for the purpose of controlling the operation of the heat source unit 3.

[0039] Furthermore, the operation control device 30 receives detection signals from sensors 18, 21, 22, and 29 that detect the temperature of each part, as well as a detection signal from a humidity sensor 19 located inside the casing 2a of the main unit 2 to detect the humidity in the bathroom.

[0040] Furthermore, the operation control device 30 has multiple control units that perform each of the above operations by executing the implemented program while appropriately using the input data.

[0041] Specifically, the operation control device 30 includes a mist sauna operation control unit, a heating operation control unit, a ventilation operation control unit, a drying operation control unit, a breeding suppression operation control unit, and an ion supply operation unit. The remote control 31 is equipped with a timing unit that functions as a timer and clock in each operation control, and the operation control device 30 is equipped with an operation time control unit that controls the operation time using the timer and clock functions of the timing unit.

[0042] Here, the control of each of the above operations by the operation control device 30, specifically the growth suppression operation, drying operation, and ion supply operation related to the gist of the present invention, will be explained with reference to the flowcharts in Figures 3 and 4.

[0043] As shown in Figure 3, first, with the power ON, when the start of the breeding suppression operation is instructed (ON) via the switch on the remote control 31 in STEP 1, the process proceeds to STEP 2 and the breeding suppression operation is executed.

[0044] The growth suppression operation involves spraying a relatively high-temperature mist (e.g., 50°C or higher) into the bathroom for a preset time (e.g., 2 hours), then proceeding to STEP 3 where the growth suppression operation is stopped. This suppresses the growth of Cladosporium fungi, which are considered to be the cause of black stains that occur in bathrooms.

[0045] Next, if drying operation is not set in STEP 4, the system returns to the state of waiting for the instruction to start the growth suppression operation. However, if drying operation is set in STEP 4 (i.e., the instruction to start ion supply operation), the system proceeds to STEP 5 and the drying operation begins. The drying operation circulates the air in the bathroom by driving the fan 16 while ventilating the bathroom by opening the exhaust duct 20.

[0046] At this time, the rotation of the fan 16 draws air from inside the bathroom into the casing 2a and blows it back into the bathroom, so that the air heated by the heating heat exchanger 9 (warm air) is returned to the bathroom. As a result, warm air is supplied to the bathroom and moisture is exhausted, drying the bathroom.

[0047] Then, while the drying operation is being performed, humidity is monitored in STEP 6. Specifically, when the humidity detected by the humidity sensor 19 in STEP 6 falls below a predetermined value (for example, absolute humidity of 28 g / m3), the process proceeds to STEP 7 and the ion supply operation (first ion supply operation) is started. The ion supply operation is performed by activating the ion generator 11 during the drying operation.

[0048] The positive and negative ions generated by the ion generator 11 are diffused into the bathroom by the airflow generated by the fan 16. These positive and negative ions can suppress the growth of Rhodotorula, which causes pink stains in the bathroom.

[0049] Incidentally, the electrodes of the ion generator 11 may corrode due to the generation of ions in a high-humidity environment. Therefore, humidity monitoring as described in STEP 6 above is implemented, and ion supply operation is performed when the humidity detected by the humidity sensor 19 (humidity inside the casing 2a in which the ion generator 11 is located) falls below a predetermined value that is considered unlikely to cause corrosion of the electrodes of the ion generator 11. Note that the predetermined value does not have to be absolute humidity, but may be relative humidity.

[0050] When the ion supply operation starts in STEP 7, positive and negative ions are generated in the bathroom for a predetermined time (for example, about 1 to 2 hours), and then the process proceeds to STEP 8, where the drying operation and ion supply operation are stopped.

[0051] Each of the processes from STEP 1 to STEP 8 involves a growth suppression operation, followed by a drying operation and an ion supply operation. This series of operations has the advantage of suppressing the growth of both Cladosporium fungi and Rhodotorula. Furthermore, the ion supply operation is performed when the humidity level is such that corrosion does not occur on the electrodes of the ion generator 11, thus extending the lifespan of the electrodes of the ion generator 11.

[0052] After STEP 8 is completed, the system may be controlled to return to a state where it is waiting for the instruction to start the breeding suppression operation, as shown by the dashed line in the figure.

[0053] Incidentally, Rhodotorula is known to have a stronger reproductive capacity than Cladosporium fungi. Therefore, frequent ion supply operation (for example, every 24 hours) is effective in suppressing the growth of Rhodotorula. On the other hand, the growth of Cladosporium fungi can be suppressed by performing a growth suppression operation, for example, about once a week.

[0054] Therefore, in order to suppress the growth of both Cladosporium fungi and Rhodotorula, it is advisable to perform the above-mentioned STEP 1 to STEP 8 treatments frequently (for example, every 24 hours).

[0055] However, generating the relatively high-temperature mist used in the reproduction suppression operation requires more energy consumption than the ion generator 11 operated in the ion supply operation. Therefore, if the above-described STEP1 to STEP8 processes are performed frequently (for example, every 24 hours), unnecessary energy consumption will occur due to the reproduction suppression operation.

[0056] Therefore, the bathroom device 1 of this embodiment is configured to perform ion supply operation (second ion supply operation) at predetermined time intervals or at predetermined times according to the user's settings, using the operation control device 30.

[0057] In other words, once STEP 8 is completed, as shown in Figure 4, the system proceeds to STEP 9, where it determines whether the user has set up automatic operation for ion supply. If automatic operation is set up, the system proceeds to STEP 10.

[0058] If the user has set the time for ion supply operation in STEP 10, proceed to STEP 11 and perform ion supply operation at the set time. During this ion supply operation, it is preferable to perform drying operation at the same time, but at least the ion generator 11 is operated while providing airflow and ventilation by the fan 16.

[0059] Then, once the ion supply operation described in STEP 11 has been performed for a predetermined time (for example, 1 to 2 hours; the time can be changed), the process proceeds to STEP 13 and the ion supply operation is stopped.

[0060] If the user has not set a time for ion supply operation in STEP 10 (including cases where the remote control 31 does not have a clock function), the process proceeds to STEP 12, where the ion supply operation is automatically performed at set time intervals (for example, every 24 hours; the time can be changed) using the timer of the operation control device 30. Note that the time interval can be changed.

[0061] In this case as well, the ion supply operation is performed simultaneously with the drying operation, or at least while the ion generator 11 is operated while airflow and ventilation are performed by the fan 16. After the ion supply operation in STEP 12 is performed for a predetermined time (for example, about 1 to 2 hours; the time is changeable), the process proceeds to STEP 13 and the ion supply operation is stopped. Note that the ion supply operation time is changeable.

[0062] Furthermore, it is known that the reproduction of Rhodotorula fluctuates seasonally. Taking this into consideration, the operation of STEP 11 and STEP 12 may be set to run only when the temperature and humidity in the bathroom exceed a certain value (for example, 20°C or higher and relative humidity of 65% or higher). This way, the ion supply operation is controlled to run only when the bathroom environment becomes conducive to the active reproduction of Rhodotorula, thus further reducing power consumption.

[0063] In this case, a specific example would be to average the temperature and humidity values ​​sampled every hour in the bathroom, and if the average value up to just before the start of STEP 11 or STEP 12 is above a certain level (for example, 20°C or higher and relative humidity of 65% or higher), then STEP 11 or STEP 12 can be executed.

[0064] On the other hand, if the average value up to the start of STEP 11 or the start of STEP 12 is below a certain level (below 20°C or relative humidity below 65%), STEP 11 and STEP 12 will not be performed. Alternatively, sampling of temperature and humidity in the bathroom may be continued, and STEP 11 and STEP 12 may be performed when the average value of the values ​​sampled every hour exceeds a certain level (20°C or higher and relative humidity of 65% or higher).

[0065] Alternatively, if the average value up to the start of STEP 11 or STEP 12 is below a certain level (below 20°C or below 65% relative humidity), STEP 11 or STEP 12 may be not run on that day. In this case, running costs can be reduced because STEP 11 or STEP 12 do not need to be run excessively.

[0066] As described above, by implementing the processes described in STEP 9 to STEP 13, it is possible to reduce power consumption and efficiently suppress the proliferation of Rhodotorula, as well as prevent Rhodotorula from proliferating due to users forgetting to operate the ion supply operation.

[0067] Furthermore, although this embodiment shows a case where the processes of STEP9 to STEP13 are performed following the processes of STEP1 to STEP8, the processes of STEP1 to STEP8 and the processes of STEP9 to STEP13 may be controlled separately.

[0068] Note that there may be overlaps between the processes in STEP1-STEP8 and STEP9-STEP13. In such cases, prioritize the processes in STEP1-STEP8.

[0069] Furthermore, in this embodiment, although Steps 5 to 8 in Figure 3 show an example of performing ion supply operation while the drying operation is in progress, the ion supply operation may not be performed during the drying operation, but rather after the drying operation is completed. Alternatively, the ion supply operation may be started during the drying operation and continued for a desired period of time even after the drying operation is completed. [Explanation of symbols]

[0070] 1...Bathroom equipment, 3...Heat source unit (heat source), 5...Mist water channel (hot water supply channel), 7...Blower (air blowing means), 8...Mist nozzle, 11...Ion generator (ion generating means), 19...Humidity sensor (humidity detection means), 20...Exhaust duct (ventilation means), 30...Operation control device (control means).

Claims

1. A bathroom apparatus comprising a heat source for heating the air inside the bathroom, a blowing means for drawing in the air inside the bathroom and blowing the drawn-in air back into the bathroom to circulate the air inside the bathroom, and a ventilation means for exhausting the air inside the bathroom to the outside for ventilation, A mist nozzle facing into the bathroom, A hot water supply channel for supplying hot water to the mist nozzle, A humidity detection means for detecting the humidity inside the bathroom, An ion generating means that generates positive and negative ions, Equipped with control means, The control means is A hot water mist spraying control process is performed to execute a hot water mist spraying operation in which hot water mist is sprayed from the mist nozzle into the bathroom. After the completion of the hot water mist spraying operation, the following drying operation control process is performed for a predetermined time, during which the ventilation means ventilates the bathroom while the blowing means draws in air from the bathroom, heats the air with a heat source, and blows the heated air into the bathroom to dry the bathroom with hot air. A first ion supply control process is performed to activate the ion generating means during the drying operation, or after the drying operation has stopped, or both, to perform a first ion supply operation to supply positive ions and negative ions into the bathroom. After the first ion supply operation is stopped, an ion supply automatic operation setting determination process is performed to determine whether or not ion supply automatic operation is set, If the automatic ion supply operation is not set, the repeat control process repeats the hot water mist spraying control process, the drying operation control process, and the first ion supply control process which is performed either during the drying operation or after the drying operation has stopped or both. If the aforementioned automatic ion supply operation is set, a second ion supply control process is performed to activate the ion generating means at a predetermined timing to supply positive and negative ions into the bathroom, A bathroom device characterized by performing the following actions.

2. In the bathroom apparatus according to claim 1, When predetermined conditions are met during the execution of the drying operation, the first ion supply operation is executed. The bathroom apparatus is characterized in that the predetermined condition is when the humidity inside the bathroom detected by the humidity detection means is less than a predetermined value.

3. In the bathroom apparatus according to claim 1 or 2, The control means determines whether the operating time for the second ion supply operation is set in advance, and if it is set, it causes the second ion supply operation to be executed at the set time, and if the operating time is not set, it causes the second ion supply operation to be executed at predetermined time intervals.