JP6624397B2 - Hot water cleaning equipment - Google Patents

Description

  The present invention relates to a hot water cleaning device.

  A hot water washing apparatus is provided on a Western-style toilet, and supplies hot water to a washing nozzle, and discharges water upward or diagonally upward from the tip of the washing nozzle to wash a user's anus or a local area (hereinafter, also referred to as a cleaning target site). Is widespread.

  As a method of supplying hot water in the hot water washing apparatus, a tank type in which washing water is heated and stored in a hot water storage tank and hot water is supplied from the hot water storage tank, or an instant heating method in which the cleaning water is heated to a predetermined temperature instantaneously and supplied. There is an expression.

JP 2000-87430 A JP 2006-102085 A JP 2007-309085 A

  Many people use the toilets at the same time in stores, airports, and highway parking areas, and tank-type hot water washing equipment sometimes runs out of hot water in the hot water storage tanks. . It is conceivable to increase the capacity of the hot water storage tank so that a large amount of hot water can be supplied.However, if a large capacity storage tank is provided, it is necessary to maintain the hot water in the storage tank at a predetermined temperature. Power also increases. For this reason, running costs are likely to increase.

  In addition, in the case of an instant heating type hot water cleaning device, hot water is generated and supplied sequentially, so that the hot water does not run out.However, since a large amount of power is required at the time of heating to generate hot water, many people have If used at the same time, excessive power may flow and the breaker may be activated, resulting in a power outage. In addition, it is conceivable to prepare equipment so that the breaker does not operate even when heating is performed in all the hot water cleaning devices.However, the instantaneous heating type hot water cleaning device increases power consumption only once during heating, and other Since almost no power is consumed during the idle period, if facilities are prepared for this temporary period, capital investment and maintenance costs become excessive, and there is a problem that there is much waste.

  In view of the above, an object of the present invention is to suppress excessive use of hot water for cleaning and to appropriately provide hot water.

In order to solve the above problems, the toilet system of the present invention includes:
Each of a plurality of toilets is provided, and as the hot water supply unit, a hot water storage type hot water supply unit that stores and heats low temperature water obtained from a water supply source in a tank and heats the low temperature water obtained from the water supply source to the washing unit. The hot water washing device according to claim 2 or 3, further comprising an instantaneous hot water supply unit for heating.
A power detection unit that detects power consumption of the hot water cleaning device provided in the plurality of toilets,
If it is determined that the usage amount of the hot water has exceeded a predetermined value, and if the power consumption of the hot water washing device provided in the plurality of toilets exceeds a threshold, the hot water supplied by the hot water storage type hot water supply unit is used. The target temperature is set lower than before the usage amount of the hot water exceeds a predetermined value, and if the power consumption of the hot water cleaning device provided in the plurality of toilets does not exceed a threshold, the instantaneous hot water supply is performed. A control unit for controlling to supply hot water heated by the unit,
Is provided.

Further, the toilet system of the present invention,
Each of a plurality of toilets is provided, and as the hot water supply unit, a hot water storage type hot water supply unit that stores and heats low temperature water obtained from a water supply source in a tank and heats the low temperature water obtained from the water supply source to the washing unit. A hot water washing device according to any one of claims 1 to 3, further comprising an instantaneous hot water supply unit for heating.
A storage amount obtaining unit that obtains a stored amount of hot water stored in a hot water supply unit of the hot water washing device provided in the plurality of toilets,
When it is determined that the amount of hot water used has exceeded a predetermined value, of the hot water washing devices provided in the plurality of toilets, the stored amount of hot water stored in the hot water supply type hot water supply unit is equal to or less than a predetermined value. If the number of certain hot water cleaning devices exceeds a threshold value, the target temperature of the hot water supplied by the hot water supply type hot water supply unit is set lower than before the usage amount of the hot water exceeds a predetermined value, and the plurality of Of the hot water cleaning devices provided in the bunch, if the number of hot water cleaning devices stored in the hot water storage type hot water supply unit is equal to or less than a predetermined value and the number of hot water cleaning devices does not exceed a threshold, the instantaneous hot water supply unit A control unit for controlling to supply heated hot water,
Is provided.

In order to solve the above problems, the hot water cleaning device of the present invention is:
A washing unit for injecting hot water to a washing target site of a user for washing;
A hot water supply unit configured to heat low-temperature water obtained from a water supply source to a target temperature and supply it to the cleaning unit;
A user detection unit that detects the presence of the user,
A hot water amount detection unit that detects the amount of hot water used by one of the users detected by the user detection unit,
A determining unit that determines whether the amount of hot water used has exceeded a predetermined value,
When it is determined that the amount of hot water used exceeds a predetermined value for warning, a warning unit that outputs a warning,
Is provided.

  The hot water cleaning device, when it is determined that the usage amount of the hot water has exceeded a predetermined value for temperature control, the hot water supply unit lowers the target temperature compared to before the predetermined value for temperature control has been exceeded. May be set.

  When the hot water cleaning device injects and cleans hot water after the usage amount of the hot water exceeds a predetermined value for temperature control, the target temperature of the user is increased with the lapse of time during which hot water is supplied. The temperature may be gradually reduced from a temperature close to the body temperature.

  ADVANTAGE OF THE INVENTION According to this invention, excessive use of the hot water for washing | cleaning can be suppressed and hot water can be provided appropriately.

FIG. 1 is an external view of a Western style toilet equipped with a hot water washing device. FIG. 2 is a cross-sectional view of the western style toilet and the hot water cleaning device of FIG. FIG. 3 is an explanatory diagram of the hot water supply unit and the cleaning unit. FIG. 4 is an explanatory diagram of the operation unit. FIG. 5 is an explanatory diagram of the cleaning process according to the first embodiment. FIG. 6 is an explanatory diagram when the target temperature of hot water is changed. FIG. 7 is a diagram illustrating the configuration of the entire toilet system according to the second embodiment. FIG. 8 is a diagram showing an example of a toilet facility. FIG. 9 is a diagram illustrating a hot water supply unit and a cleaning unit of the hot water cleaning device according to the second embodiment. FIG. 10 is a diagram illustrating a hardware configuration of the management server. FIG. 11 is an explanatory diagram of a cleaning process according to the second embodiment.

<Embodiment 1>
Hereinafter, embodiments for implementing the present invention will be described with reference to the drawings. The configuration of the following embodiment is an exemplification, and the present invention is not limited to the configuration of the embodiment. FIG. 1 is an external view of a Western style toilet equipped with a hot water washing device, FIG. 2 is a cross-sectional view of the Western style toilet and hot water washing device of FIG. 1, FIG. 3 is an explanatory view of a hot water supply unit and a washing unit, and FIG. FIG.

  First, the overall configuration of the hot water cleaning device 5 shown in FIG. 1 will be described. The hot water cleaning device 5 is mounted on a Western-style toilet bowl 12, and includes a main body 13 including a hot water supply unit 11 (see FIG. 1) for heating the cleaning water and discharging the water at a set temperature (target temperature). The apparatus includes a cleaning nozzle device (cleaning unit) 16 for injecting cleaning water to a cleaning target portion, an operation panel 20 for performing operations, and an operation unit 20 including a display panel 19 for displaying. In the present embodiment, the toilet seat 15 and the toilet lid 17 are also attached to the main body 13 so as to be freely opened and closed.

  Further, a water supply pipe (not shown) is connected to the toilet 12, and flush water for cleaning the inside of the toilet is supplied. The water supply pipe is also connected to the hot water supply unit 11 via a branch fitting and a connecting pipe (not shown), and supplies water to the hot water supply unit 11 as a water supply source.

  Next, the configuration of the hot water supply unit 11 will be described. As shown in FIG. 1, the hot water supply unit 11 receives a supply of tap water by connecting a primary flow path 32 to a water supply pipe. A main electromagnetic valve 60 is connected to the primary flow path 32, and a secondary flow path of the main electromagnetic valve 60 is branched into a hot water side flow path 34 and a water side flow path 35. A hot water storage tank 70 made of a synthetic resin is connected to the hot water side branch flow path 34.

  In the hot water storage tank 70, a heater 72 for heating the stored water is provided. The heater 72 is turned on and off by a temperature controller 73 to adjust the stored water to a predetermined temperature (for example, 60 ° C.).

  The hot-water storage tank 70 is connected to a hot-water-side outflow channel 36 for allowing high-temperature water to flow out. The high-temperature water that has passed through the hot water-side outflow channel 36 and the low-temperature water that has passed through the water-side branch channel 35 are supplied to the mixing valve 90. The mixing valve 90 changes the flow area of the hot water-side flow path connected to the hot water-side outflow flow path 36 and the water-side flow path connected to the water-side branch flow path 35 by driving a motor, thereby changing the hot water-water mixing ratio. It is a rotary solenoid valve that changes.

  The secondary flow path 42 of the mixing valve 90 is connected to a flow control unit 110. The flow rate adjusting unit 110 adjusts the flow rate of the hot water supplied from the flow path 42 to the cleaning nozzle device 16 under the control of the electronic control unit 200. For example, the flow control unit 110 is a flow control valve whose opening degree is controlled by the electronic control unit 200.

  The cleaning nozzle device 16 is connected to the secondary flow path of the flow rate adjustment unit 110. The cleaning nozzle device 16 ejects cleaning water toward a portion to be cleaned, is moved forward and backward by a motor 16b, advances to a cleaning position when cleaning is used, and retracts to a standby position when not in use or nozzle cleaning. Things.

Further, the hot water supply unit 11 is provided with a plurality of temperature sensors, for example, thermistors, for controlling the discharge of mixed hot water at a target temperature from the cleaning nozzle 16a. A water temperature sensor 152 is provided in the water-side branch flow path 35, a hot water temperature sensor 154 is provided in the hot water storage tank 70, and a mixed hot water temperature sensor 156 is provided in the mixing flow path 38. The temperature of the high-temperature water, the low-temperature water in the flow path 35, and the temperature of the hot water in the flow path 42 are detected.

  Various switches are provided on the operation panel 18 of the operation unit 20. For example, as shown in FIG. 4, a hot water washing button 174, a stop button 177, a temperature setting button 178 for adjusting the water discharge temperature, a water amount adjusting button 182 for adjusting the water amount, a toilet flush button 173, and the like are provided. Further, the toilet seat 15 is provided with a seating sensor 162 for detecting the seating of the user. As the seat sensor 162, for example, a pressure sensor provided inside the toilet seat 15 or a human sensor for detecting infrared rays emitted or reflected by the user can be used. In the present embodiment, the seat sensor 162 is an example of a user detection unit that detects the presence of a user. The user detection unit is not limited to the one provided on the toilet seat 15 and may be provided on the wall surface of the operation unit 20 or the toilet 14. Not only those that directly detect the presence of the user, but the door lock sensor detects the state of the door lock and that the user is present in the toilet until the door of the toilet is locked and released. Alternatively, the presence of the user may be detected indirectly. Further, it may be detected that the user is present in the toilet chamber from the time when the hot water washing button 174 is pressed until the time when the toilet flush button 173 is pressed.

The detection signals of the above-described sensors and the output signals of the switches and the like are input to the electronic control unit 200. The electronic control unit 200 is configured as a logical operation circuit such as a microcomputer. Specifically, the electronic control unit 200 executes various arithmetic processing for controlling the temperature of the washing water and the like according to a preset control program, and various arithmetic operations performed by the CPU 202. ROM 204 in which a control program and control data necessary for executing the processing are stored in advance, and various data such as temperature setting and water amount setting necessary for executing various arithmetic processing by the CPU 202 are temporarily read and written. RAM 206, an input processing circuit 207 that inputs a detection signal from each sensor or a signal from a switch and converts the signal into a signal that can be processed by the CPU 202, and drives the main solenoid valve 60 and the like according to the calculation result of the CPU 202. An output processing circuit 208 for outputting a signal is provided. In the first embodiment, the electronic control unit 200 also functions as a user detection unit, a hot water amount detection unit, a determination unit, and a warning unit by executing various arithmetic processes according to a control program. The user detection unit detects the presence of the user based on the detection results of sensors such as the seat sensor 162 and the door lock sensor, and determines whether the user has changed, that is, the same user continues to wash. Is determined. The hot water amount detection unit detects the amount of hot water used by one of the users detected by the user detection unit. The determination unit predetermines an upper limit value (a predetermined value for warning or a predetermined value for temperature control) of the usage amount for one user and registers the predetermined value in the ROM 204 or the like. It is determined whether the amount has exceeded a predetermined value. The warning unit displays the display unit (display panel 1) when it is determined that the usage amount of the hot water has exceeded a predetermined value for warning.
The warning is output by displaying a warning message to 9), outputting a warning sound, turning on a warning light, and the like.

  Next, the operation of the hot water supply unit 11 will be described. When the hot water cleaning button 174 is turned on while the power is on, the main solenoid valve 60 is opened. When the main solenoid valve 60 is opened, the tap water is supplied to the hot water storage tank 70 via the hot water side branch flow path 34 and to the water side branch flow path 35. The water stored in the hot water storage tank 70 is heated to a predetermined temperature (for example, 60 ° C.) by the heater 72. The temperature adjustment of the high-temperature water in the hot water storage tank 70 is performed by on / off control of the heater 72 by the temperature adjustment unit 73 that receives a control signal from the electronic control unit 200. The high-temperature water in the hot-water storage tank 70 is sent to the mixing valve 90, and mixed with the low-temperature water flowing through the water-side branch passage 35 by the mixing valve 90.

The mixing valve 90 receives the control signal from the electronic control unit 200, adjusts the flow path area of the hot water side flow path and the water side flow path, and changes the mixing ratio of the high temperature water and the low temperature water, thereby Change the temperature. Here, the opening control of the mixing valve 90 is performed based on feedforward control by the electronic control unit 200 based on the detected temperatures from the hot water temperature sensor 154 and the water temperature sensor 152, and / or based on a detection signal from the mixed hot water temperature sensor 156. The electronic control unit 200 performs the feedback control.

  The mixed hot and cold water mixed by the mixing valve 90 is supplied to the water discharge channel 42 and is discharged from the cleaning nozzle 16a via the flow rate adjustment unit 110.

  When the user operates the water volume adjustment button 182 to change the water volume setting, a signal is output to the flow rate adjustment unit 110 via the electronic control unit 200, and the flow rate from the cleaning nozzle 16a is adjusted. Is done. When the temperature setting button 178 is operated to change the temperature setting, the signal changes the reference value when the electronic control unit 200 controls the opening of the mixing valve 90, and the mixing ratio by the mixing valve 90 is changed. The temperature is changed to change the temperature of the water discharged from the cleaning nozzle 16a.

  In the hot water storage type washing apparatus 5, if hot water is excessively used and hot water in the hot water storage tank 70 runs out, hot water cannot be supplied. Therefore, the hot water cleaning device 5 of the present embodiment determines the amount of hot water used per person, and when it is determined that the amount of hot water used by one user has exceeded a predetermined value, displays a warning, By performing control such as lowering the temperature, a situation in which hot water cannot be supplied is prevented.

  The cleaning process according to the first embodiment will be described with reference to FIG. When the hot water cleaning button 174 is pressed, the electronic control unit 200 starts the processing in FIG. 5, first advances the cleaning nozzle 16a to the cleaning position in step S100, and in step S100, the main electromagnetic valve 60 open.

  Further, electronic control unit 200 reads detected temperature TM of mixed hot water temperature sensor 156 in step S110, and reads target temperature Tm from RAM 206 in step S120.

  Then, in step S130, electronic control unit 200 compares mixed hot water temperature TM with target temperature Tm, and determines whether mixed hot water temperature TM matches target temperature Tm.

  Here, if the mixed hot water temperature TM does not match the target temperature Tm, the opening of the mixing valve 90 is changed in step S140 so that the mixed hot water temperature TM approaches the target temperature Tm, and the mixed hot water temperature TM is set to the target temperature. If the temperature is equal to the temperature Tm, feedback control is executed by controlling to skip step S140.

  As described above, when the main electromagnetic valve 60 is opened and the tap water is supplied to the hot water storage tank 70, the high-temperature water heated in the hot water storage tank 70 is pushed out to the hot water-side outflow passage 36, and The mixed hot water is mixed with the low-temperature water from the water-side branch flow path 35 to obtain mixed hot water having the target temperature Tm. The mixed hot water is discharged from the cleaning nozzle 16a at a flow rate (water force) determined by the flow rate adjusting unit 110, and is cleaned. The target site is cleaned.

Then, it is determined whether or not the user has been changed in step S150. The change of the user is determined, for example, during the period in which the presence of the user is continuously detected by the seat sensor 162, that is, the user is not changed, that is, it is determined that the same user is using the seat. When the presence of the user cannot be detected, it is determined that the user has been changed. In addition, the door lock sensor detects the state of the door lock, determines that there is no user change during the period from when the toilet door is locked to when it is released, and detects that the door is unlocked In this case, it may be determined that the user has been changed. Further, it is determined that there is no change of the user during the period from when the hot water cleaning button 174 is pressed to when the toilet cleaning button 173 is pressed, and when it is detected that the toilet cleaning button 173 is pressed, the user is changed. May be determined. Furthermore, the presence or absence of a change of the user may be determined by combining these.

  If it is determined in step S150 that there is no change in the user, the amount of hot water used by the user is integrated in step S160. For example, the usage amount is integrated by multiplying the flow rate determined by the flow rate adjustment unit 110 by the discharge time of the hot water to calculate the discharge amount periodically, and then integrating until the user is changed. However, the present invention is not limited to this, and a flow meter may be provided in the discharge channel 42 to calculate the discharge amount periodically, and may integrate the amounts until the user changes. Note that even if the stop button is pressed and the processing in FIG. 5 ends, if there is no change in the user when the hot water cleaning button 174 is pressed next time, the accumulation is continued as the usage amount of this user.

  On the other hand, when it is determined in step S150 that the user has been changed, the use amount is initialized in step S170, and integration of the use amount relating to a new user is started.

  Next, it is determined in step S180 whether or not the usage amount has exceeded a predetermined value for warning. If the usage amount has exceeded the predetermined value, a warning message is displayed on the display panel 19 in step S190, and the value exceeds the predetermined value. If not, step S190 is skipped. The predetermined value for the warning is predetermined in consideration of the average value of the usage amount used by one person and the capacity of the hot water storage tank 70, and is registered in the RAM 206 in advance as an appropriate value for the usage amount for one person. If the value exceeds the specified value, a warning message such as "Your hot water usage is approaching the upper limit." "Please note that the temperature of the cleaning water will drop shortly." Is displayed. In addition, the remaining amount of hot water is obtained based on the calculated usage amount, and the remaining amount of hot water is displayed at a variable XX, such as "Your hot water is XXL." Is also good. Further, the remaining amount may be represented by a graph or a symbol. This remaining amount may be subtracted and displayed at any time according to the integrated value of the usage amount. The warning is not limited to display of a message, but may be output of a voice message or a warning sound, lighting of a warning lamp, or the like.

  Next, in step S200, it is determined whether or not the usage amount has exceeded a predetermined value for temperature control. If the usage amount has exceeded the predetermined value, the target temperature Tm of the mixed hot water supplied from the hot water supply unit 11 is determined in step S210. Set as low as you want.

  Then, in step S220, it is determined whether or not the stop button 177 has been pressed. If the stop button 177 has not been pressed, the process returns to step S120. If it is determined that the stop button 177 has been pressed, the process proceeds to step S230. Then, the main solenoid valve 60 is closed, and the water discharge from the cleaning nozzle 16a is completed. Then, in step S240, the cleaning nozzle 16a is retracted to the cleaning position, and the cleaning process ends.

  FIG. 6 is an explanatory diagram when the usage amount exceeds a predetermined value for temperature control and the target temperature of hot water is changed. In FIG. 6, the vertical axis indicates the temperature, and the horizontal axis indicates the time, showing the temporal change of the target temperature.

FIG. 6A shows normal time, that is, the case where the usage amount does not exceed the predetermined value for temperature control, and shows that the mixed hot water is maintained at the target temperature Tm. On the other hand, when the usage amount exceeds the predetermined value for temperature control, as shown in FIG. 6B, the mixed hot water is maintained at the target temperature Tmx lower than the target temperature Tm. In FIG. 6 (B), ta indicates a point in time when the usage amount exceeds a predetermined value. Here, the target temperature Tmx may be determined based on the output (heat generation amount) of the heater 72. For example, the temperature of the hot water obtained when the heater 72 heats low-temperature water at a flow rate discharged from the cleaning nozzle 16a during cleaning, that is, the low-temperature water (water supply) is heated by the heater 72 like an instantaneous hot water supply unit. The temperature of the hot water continuously obtained in this case is set as the target temperature Tmx. In this case, the target temperature Tmx may be calculated based on the temperature of the low-temperature water detected by the water temperature sensor 152, the flow rate (water force) of the cleaning water determined by the flow rate control unit 110, and the heat generation amount of the heater 72. Then, assuming a standard water temperature and a flow rate of the cleaning water, the target temperature Tmx may be calculated based on the assumed water temperature, the flow rate, and the calorific value of the heater 72.

  When the usage amount exceeds the predetermined value for temperature control, the target temperature Tm is not immediately set to the target temperature Tmx as shown in FIG. 6B, but the time elapses as shown in FIG. At the same time, the temperature may be gradually decreased from the target temperature Tm. For example, in FIG. 6C, at the time ta when the usage amount exceeds the predetermined value, the target temperature Tm0 is substantially the same as the target temperature Tm, and at the time t1, the target temperatures Tm1 and t2, and at the time of the target temperatures Tm2 and t3. And the target temperature Tmx.

  As described above, according to the present embodiment, a warning is issued to the user when the usage amount for one person is used up, so that excessive use of hot water can be suppressed.

  When the amount of hot water used exceeds a predetermined value for temperature control, the amount of hot water in hot water storage tank 70 can be reduced by setting the target temperature of hot water low.

  Further, when the target temperature of the hot water is set low, the discomfort when the temperature of the hot water is lowered can be reduced by gradually decreasing the target temperature.

<Embodiment 2>
Next, a second embodiment of the present invention will be described. In the second embodiment, the hot water cleaning device has a hot water storage type hot water supply unit and an instantaneous type hot water supply unit, and cooperatively controls the hot water cleaning devices provided in a plurality of toilets. Since other configurations are the same as those of the above-described embodiment, the same components are denoted by the same reference numerals and the description thereof will not be repeated.

  FIG. 7 is a diagram illustrating a configuration of the entire toilet system according to the second embodiment, FIG. 8 is a diagram illustrating an example of the toilet facility 10, and FIG. 9 is a diagram illustrating a hot water supply unit and a cleaning unit of the hot water cleaning device according to the second embodiment. FIG.

  As shown in FIG. 7, the toilet system 100 according to the second embodiment includes a toilet facility 1 and a management server 2, and these are mutually connected via a network N such as a LAN and the Internet. In the toilet system 100, the hot water cleaning device of the toilet facility 1 provided in each of the plurality of toilets 14 in the toilet facility 10 adjusts the temperature of the hot water according to the amount of hot water used (the amount of use) for cleaning, The management server 2 cooperatively controls each hot water cleaning device in the toilet facility according to the usage status of the hot water cleaning device of each toilet 14.

  The toilet facility 10 is a public toilet in a commercial facility such as a department store, a station, or the like. The toilet facility 10 includes a plurality of toilets 14, and each toilet 14 is provided with a toilet facility 1 such as a toilet or a hot water washing device.

  As shown in FIG. 8, the toilet facility 10 is divided into, for example, a female toilet facility 101, a male toilet facility 102, and a multipurpose toilet facility 103. A plurality of toilets 14 are provided in the female toilet facility 101 and the male toilet facility 102. Although the example of the multipurpose toilet facility 103 in FIG. 8 includes one toilet 14, the multipurpose toilet facility 103 may include a plurality of toilets 14. Here, the toilet 14 is a space surrounded by a door, a wall, and the like, and provided with the toilet facility 1 for one person to use at the same time. Note that the toilet 14 is not strictly limited to being used by one person, but may be one that allows a caregiver or an infant to enter the room at the same time as the user. Further, the space may not be completely enclosed, such as a baby toilet.

  As shown in FIG. 9, the hot water cleaning apparatus 5 of the second embodiment includes a hot water storage tank 70, a heater 72, a hot water supply unit 11A including a temperature control unit 73, and the like, and also includes a heater 74, a temperature control unit 75, and the like. It has an instantaneous hot water supply unit 11B.

  The heater 74 of the instantaneous hot water supply unit 11B is connected to the flow path 42 and heats the cleaning water flowing to the cleaning nozzle device 16 side. The temperature control unit 75 is controlled by the electronic control unit 200 and controls the temperature of the cleaning water heated by the heater 74 by adjusting the power supplied to the heater 74.

  The hot water cleaning device 5 of the second embodiment has a communication IF 201 for communicating with the management server 2 via a network.

  FIG. 10 is a diagram illustrating a hardware configuration of the management server 2. The management server 2 is a so-called computer having a CPU 21, a main storage device 22, an auxiliary storage device 23, a communication IF (Interface) 24, an input / output IF (Interface) 25, and a communication bus 26.

  The CPU 21 executes a program that has been loaded into the main storage device 22 so as to be executable, and provides functions of a power detection unit and a cooperative control unit. The power detection unit detects the power consumption of the hot water cleaning device 5 provided in the plurality of toilets 14 in the toilet facility 10. For example, the power consumption of each hot water cleaning device 5 is obtained via the communication IF 201 of each hot water cleaning device 5, and the total power consumption of the hot water cleaning device 5 provided in the toilet facility 10 is obtained. In addition, the power detection unit obtains a control signal for operating the heaters 72 and 74 of each hot water cleaning device 5 via the communication IF 201 of each hot water cleaning device 5 and calculates power consumption when the operation is performed. Alternatively, the total power consumption of the hot water washing device 5 provided in the toilet facility 10 may be obtained. Also, a power meter is provided on the power line to which each hot water cleaning device 5 is connected, and the power consumption of each hot water cleaning device 5 and the total power consumption of the hot water cleaning device 5 provided in the toilet facility 10 are provided from the power meter. May be obtained.

  The cooperative control unit, when it is determined that the amount of hot water used has exceeded a predetermined value, if the power consumption of the hot water washing device provided in the plurality of toilets exceeds a threshold, the hot water storage type hot water supply unit The target temperature of the hot water to be supplied is set lower than before the usage amount of the hot water exceeds a predetermined value, and if the power consumption of the hot water cleaning device provided in the plurality of toilets does not exceed a threshold, Control is performed so that hot water heated by the instantaneous hot water supply unit is supplied.

  The main storage device 22 is used as a cache for programs and data read by the CPU 21 and as a work area for the CPU 21. The main storage device 22 is, specifically, a RAM (Random Access Memory), a ROM (Read Only Memory), or the like.

  The auxiliary storage device 23 stores a program executed by the CPU 21, setting information used in the present embodiment, and the like. The auxiliary storage device 23 is, specifically, an HDD, an SSD, a flash memory, or the like.

  The communication IF 24 transmits and receives data to and from another computer device. The communication IF 24 is, specifically, a wired or wireless network card or the like. The input / output IF 25 is appropriately connected to output means such as a display device and a printer, input means such as a keyboard and a pointing device, and input / output means such as a drive device. The drive device is a removable storage medium read / write device, such as a flash memory card input / output device, a USB adapter for connecting a USB memory, or the like. Further, the removable storage medium may be a disk medium such as a CD (Compact Disc) and a DVD (Digital Versatile Disk). The drive device reads the program from the removable storage medium and stores the program in the storage device 23.

  The auxiliary storage device 23 stores a program executed by the CPU 21, setting information used in the present embodiment, and the like. The auxiliary storage device 23 is, specifically, an HDD, an SSD, a flash memory, or the like. The auxiliary storage device 23 exchanges data with the drive device. For example, the auxiliary storage device 23 stores a program or the like installed from the drive device. Further, the auxiliary storage device 23 reads out the program and transfers it to the main storage device 22.

  FIG. 11 is an explanatory diagram of the cleaning process according to the second embodiment. When the hot water cleaning button 174 is pressed, the electronic control unit 200 starts the processing in FIG. Steps S100 to S200 are the same as those in the first embodiment.

  In step S200, it is determined whether or not the usage amount has exceeded a predetermined value for temperature control. If the usage amount has exceeded the predetermined value, communication with the management server 2 is performed in step S202, and whether or not hot water supply by the instantaneous hot water supply unit is performed. Check if. On the other hand, the management server 2 determines whether or not the total power consumption of the hot water cleaning device 5 provided in the toilet facility 10 exceeds a threshold, that is, whether or not there is enough power, and the management server 2 determines whether the total power consumption exceeds the threshold. If not, it is determined that there is enough power, and the warm water cleaning device 5 is instructed to supply hot water by the instantaneous hot water supply unit. If the threshold value is exceeded, it is determined that there is not enough power, and the hot water cleaning device 5 is not instructed to supply hot water by the instantaneous hot water supply unit.

  In step S202, the hot water cleaning device 5 that has received the instruction to supply hot water from the instantaneous hot water supply unit performs heating by the heater 74 of the instantaneous hot water supply unit 11B in step S204, and detects the mixed hot water temperature sensor 156 in step S206. The detected temperature TM is compared with the target temperature Tm to determine whether the detected temperature TM matches the target temperature Tm.

  Here, if the detected temperature TM does not match the target temperature Tm, in step S208, the heating value of the heater 74 is changed so that the detected temperature TM approaches the target temperature Tm, and the temperature is adjusted. If the temperature is equal to the temperature Tm, feedback control is executed by controlling to skip step S208.

  On the other hand, in step S202, the hot water cleaning device 5 that has received the instruction not to perform hot water supply by the instantaneous hot water supply unit performs the processing after step S210, that is, lowers the target temperature Tm of the mixed hot water, as in the first embodiment. Perform processing such as setting.

  As described above, according to the second embodiment, even when the usage amount for one person is used up, if there is enough power in the entire toilet facility, hot water can be supplied by the instantaneous hot water supply unit without lowering the temperature of the washing water. Then, if there is not enough power, the temperature of the cleaning water is lowered to reduce the amount of hot water used in the hot water storage tank 70. As a result, the hot water cleaning device can be used comfortably without providing excessive power equipment.

<Embodiment 3>
In Embodiment 2 described above, when it is determined that the amount of hot water used has exceeded a predetermined value, hot water supply by the instantaneous hot water supply unit 11B depends on whether or not the total power consumption of the hot water cleaning device in the toilet facility has exceeded a threshold value. Or whether the target temperature of the hot water supplied by the hot water supply unit 11A is to be lowered, but in the third embodiment, the storage amount of the hot water stored in the hot water storage tank 70 of the hot water storage unit 11A. Is determined based on whether or not is less than or equal to a predetermined value. Since the other configuration is the same as that of the above-described second embodiment, the same components are denoted by the same reference numerals and the description thereof will not be repeated.

  The CPU 21 of the management server 2 according to the third embodiment executes a program that is executable in the main storage device 22 and provides functions of a storage amount acquisition unit and a cooperative control unit. That is, it has a function of a storage amount acquisition unit instead of the power detection unit of the second embodiment.

  The storage amount obtaining unit obtains the storage amount of the hot water stored in the hot water storage tank 70 of each hot water cleaning device 5 via the communication IF 201 of the hot water cleaning device 5 provided in the plurality of toilets 14 in the toilet facility 10. I do.

  When the cooperative control unit determines that the amount of hot water used has exceeded the predetermined value, the stored amount of hot water stored in the hot water type hot water supply unit of the hot water cleaning devices provided in the plurality of toilets is determined. If the number of hot water washing devices that is equal to or less than a predetermined value exceeds a threshold, the target temperature of the hot water supplied by the hot water supply type hot water supply unit is set lower than before the usage amount of the hot water exceeds the predetermined value, If the number of hot water washing devices in which the amount of hot water stored in the hot water supply type hot water supply unit is equal to or less than a predetermined value among the hot water washing devices provided in the plurality of toilets does not exceed a threshold, the instant The hot water heated by the hot water supply unit is controlled to be supplied.

  The main flow of the cleaning process according to the third embodiment is also the same as that of the above-described second embodiment, and thus will be described with reference to FIG. When the hot water cleaning button 174 is pressed, the electronic control unit 200 starts the processing in FIG. Steps S100 to S200 are the same as those in the second embodiment.

  In step S200, it is determined whether or not the usage amount has exceeded a predetermined value for temperature control. If the usage amount has exceeded the predetermined value, communication with the management server 2 is performed in step S202, and whether or not hot water supply by the instantaneous hot water supply unit is performed. Check if. On the other hand, the management server 2 determines that the threshold of the number of hot water cleaning devices in each of the hot water cleaning devices 5 provided in the toilet facility 10 in which the stored amount of hot water stored in the hot water supply type hot water supply unit is equal to or less than a predetermined value. It is determined whether or not the number of hot water cleaning devices 5 that require hot water supply by the instantaneous hot water supply unit is large, and whether the number of hot water cleaning devices 5 that require hot water supply by the instantaneous hot water supply unit is small and there is room for power. It determines that there is, and instructs the hot water washing device 5 to supply hot water by the instantaneous hot water supply unit. If the value exceeds the threshold value, it is determined that the number of hot water cleaning devices 5 requiring hot water supply by the instantaneous hot water supply unit is large and there is not enough power, and the hot water cleaning device 5 is not instructed to supply hot water by the instantaneous hot water supply unit.

  In step S202, the hot water cleaning device 5 that has received the instruction to supply hot water from the instantaneous hot water supply unit performs heating by the heater 74 of the instantaneous hot water supply unit 11B in step S204, and detects the mixed hot water temperature sensor 156 in step S206. The detected temperature TM is compared with the target temperature Tm to determine whether the detected temperature TM matches the target temperature Tm.

  Here, if the detected temperature TM does not match the target temperature Tm, in step S208, the heating value of the heater 74 is changed so that the detected temperature TM approaches the target temperature Tm, and the temperature is adjusted. If the temperature is equal to the temperature Tm, feedback control is executed by controlling to skip step S208.

  On the other hand, in step S202, the hot water cleaning device 5 that has received the instruction not to perform hot water supply by the instantaneous hot water supply unit performs the processing after step S210, that is, lowers the target temperature Tm of the mixed hot water, as in the first embodiment. Perform processing such as setting.

  As described above, according to the third embodiment, even when the usage amount for one person is used up, if there are few hot water washing devices 5 requiring hot water supply by the instantaneous hot water supply unit in the entire toilet facility, and there is sufficient power, The hot water is supplied by the instantaneous hot water supply unit without lowering the temperature of the washing water, and the temperature of the washing water is decreased if there are many hot water washing devices 5 requiring hot water supply by the instantaneous hot water supply unit and there is not enough power. Thus, the amount of hot water used in the hot water storage tank 70 is reduced. As a result, the hot water cleaning device can be used comfortably without providing excessive power equipment.

DESCRIPTION OF SYMBOLS 1 Toilet facility 2 Management server 5 Hot water washing device 10 Toilet facility 11 Hot water supply unit 11A Hot water storage unit 11B Instantaneous hot water supply unit 12 Toilet bowl 13 Main body 14 Toilet 15 Toilet seat 16 Cleaning nozzle device 16a Cleaning nozzle 16b Motor 17 Toilet lid 18 Operation panel 19 Display panel 20 Operation unit 22 Main storage device 23 Auxiliary storage device 24 Communication IF
25 I / O IF
26 communication bus 32 primary side flow path 34 hot water side branch flow path 35 water side branch flow path 36 hot water side outflow flow path 38 mixing flow path 42 secondary side flow path 60 main solenoid valve 70 hot water storage tank 72 heater 73 temperature controller 75 Temperature control unit 90 Mixing valve 100 Toilet system 110 Flow control unit 152 Water temperature sensor 154 Hot water temperature sensor 156 Mixed hot water temperature sensor 162 Seating sensor 173 Toilet bowl flush button 174 Hot water flush button 177 Stop button 178 Temperature setting button 182 Water quantity regulating button 200 Electronic control Unit 207 Input processing circuit 208 Output processing circuit

Claims (3)

A washing unit for injecting hot water to a washing target site of a user for washing;
A hot water supply unit configured to heat low-temperature water obtained from a water supply source to a target temperature and supply it to the cleaning unit;
A user detection unit that detects the presence of the user,
A change determination unit that determines whether the user has changed,
The amount of hot water used during the period in which the user detection unit detects the presence of the user and it is determined that there is no change in the user is used as the amount of hot water used by one of the users. A hot water amount detection unit for detecting,
A determination unit that determines whether the amount of hot water used by one user has exceeded a predetermined value for warning that is an upper limit of the amount of use for one person,
When it is determined that the amount of hot water used has exceeded the predetermined value for the warning, a warning unit that outputs a warning,
A hot water washing device comprising:   The hot water supply unit sets the target temperature to be lower than when the usage amount of the hot water has exceeded a predetermined value for temperature control, as compared to before the predetermined amount for temperature control has been exceeded. The hot water washing device as described. When the hot water is injected and washed after the hot water usage exceeds a predetermined value for temperature control, the target temperature gradually decreases from a temperature close to the user's body temperature with the lapse of time during which the hot water is supplied. The hot water cleaning device according to claim 2, wherein the cleaning is performed.

Images