JP3745834B2 - Bath water cleaning equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bath water purifier.
In recent years, bath water purifiers that keep the bathtub hot water clean by repeating the process of pumping the hot water from the bathtub and passing it through a predetermined purification mechanism and then returning it to the bathtub again are widely used.
In such a bath water purifier, the bath water is forcibly circulated by a circulation pump, and sterilization by activated carbon or the like or sterilization by ozone or the like is performed, and at the same time, a predetermined temperature is maintained by an electric heater. In recent years, an apparatus for maintaining temperature at low cost using midnight power has been proposed.
When using midnight power, a normal heat storage tank is used, where high-temperature water heated at low cost by midnight power is stored, and this hot water is appropriately supplied to the bathtub to maintain the temperature of the bath water. ing.
By the way, midnight power has a predetermined time zone, and power is supplied only within that time zone, but the conventional heat storage tank starts heating from the start of midnight power and reaches a predetermined temperature. When it reached, the structure which stops a heating was common.
[0002]
[Problems to be solved by the invention]
However, the bath water purification device is often used even at midnight, and the hot water in the heat storage tank is often used after the heating is completed, and there is a problem that sufficient hot water cannot be stored in the heat storage tank.
For this reason, it is desirable to start heating at a time as late as possible in the time zone of midnight power. However, when such energization control is performed, there is a risk that heating cannot be performed to a predetermined temperature within the midnight power time zone. Further, deviation occurs in clock, will be midnight electric power is completed before reaching the predetermined temperature, there is a possibility that insufficient heating in the heat storage tank occurs.
The object of the present invention is to solve the above-mentioned problems of the prior art.
[0003]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a bath water cleaning apparatus for circulating and purifying bath water between a bathtub and a cleaning mechanism, introducing the bath water, heating and storing the means, Means for supplying hot water from the means for storing to the bathtub, time measuring means for recognizing time, means for heating bath water in the means for storing, and means for storing Calculate the time until the temperature of the bath water stored in the storage means is heated to the specified temperature from the amount and temperature of the stored water, and go back from the end time of the midnight power hours to determine the start time of energization. Calculating means for determining, and heating control means for detecting the arrival of the energization start time calculated by the timing means and starting energization of the means for heating to heat the bath water It is characterized by that.
In the above configuration, the means for heating can start energization at the start time that goes back from the end time of the midnight power time period , and the heating time can be shifted to the end time side. A means for detecting a non-energized state of the means for heating; and for detecting the time between the energization start time and the end time of the midnight power time period, which is recognized by the timing means. And a means for notifying the abnormality of energization when a non-energized state is detected from the means of the above, and when the non-energized state is detected by the means for detecting, the timing means is distorted. It is possible to notify the abnormality of energization. This notification can be performed by voice, display, or both.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, a main body 1 is usually installed outdoors, and is connected to a bathtub 2 by a water inlet pipe 3 and a water outlet pipe 4. A user selects operation / stop and whether or not to keep the bath water warm, sets the bath warming temperature, and the like by the remote controller 5 attached to the wall surface of the bathroom. The remote controller 5 is connected to the control board 6 in the main body by a cord, and displays the operation status, hot water temperature, time, various warnings and the like in the main body on the display device 50. A water absorption port 8 incorporating a pre-filter 7 is connected in the bathtub at the end of the water intake pipe 3, and bath water from which hair has been removed is sucked into the main body.
[0005]
A circulation pump 9 is installed in the other main body of the water inlet pipe 3, and a check valve for water is provided in the middle of the water inlet pipe 3 so that bath water in the main body does not return to the bathtub when the circulation pump is stopped. 10 is attached. The flow path is divided into two directions on the water discharge side of the circulation pump 9, one being connected to the filter medium tank 12 through the throttle 11, and the other being connected to the water inlet side below the heat storage tank 13 with a hose.
[0006]
The filter medium tank 12 contains a filter medium 15 such as ceramic balls and activated carbon, and purifies the bath water. When the filter medium is clogged due to long-term use, the tank lid 16 is opened, the filter medium is taken out, and can be hand-washed with tap water. The outlet side of the filter medium tank 12 is connected to one inlet side of the mixing valve 17 by a hose.
[0007]
The circulation pump 9 is provided with a water shortage sensor 14 in parallel so that a decrease in the level of the bath water can be detected. The water shortage sensor 14 is of a type that detects the differential pressure of the circulation pump 9, and one tube is connected to the water input side of the circulation pump 9 and the other tube is connected to the water discharge side of the circulation pump 9.
[0008]
The upper part of the heat storage tank 13 is connected to the other incoming water side of the mixing valve 17 by a hose. The mixing valve 17 adjusts an internal valve for the bath water that has passed through the filter medium tank 12 and the hot water that has come out from the upper part of the heat storage tank 13 to an appropriate predetermined hot water temperature. To be discharged.
The water inlet side hot water temperature sensor 20 is attached to the water inlet pipe 3, and the control board 6 mixes when the bath water temperature detected by the water inlet side hot water temperature sensor 20 falls below the heat retention temperature set by the user. Control the valve 17 to mix bath water and hot water to a predetermined temperature and discharge it to the bathtub. When the bath water temperature exceeds the heat retention temperature by a predetermined value (about 0.5 ° C), bath water only Is discharged into the bathtub. The valve of the mixing valve 17 is controlled by a pulse motor or the like, and has a built-in phase detection sensor for determining its initial phase as shown in FIG.
The bath water enters the heat storage tank 13 only with the hot water discharged from the heat storage tank 13, but the bath water (about 40 ° C) and the hot water have different densities, so the bath water and the hot water are mixed in the heat storage tank 13. do not do.
[0009]
The discharge side of the mixing valve 17 is connected to the jet nozzle 21 via the water discharge pipe 4. A jet solenoid valve 23 and an ozone generator 24 are connected to the jet nozzle 21 via an air tube 25. During a clean operation other than bathing, the jet solenoid valve 23 and the ozone generator 24 are turned on, Air mixed with ozone is discharged from the jet nozzle 21 to sterilize the bath water. When bathing, the ozone generator 24 is turned off, and the jet solenoid valve 23 is turned on and off with the jet key of the remote controller 5 so that the presence or absence of the jet can be selected. The jet nozzle 21 has a narrow inner diameter so that air is mixed therein.
[0010]
A heat storage heater 18 and a heat storage tank lower hot water temperature sensor 19 are attached to the lower part of the heat storage tank 13, and the bath water in the tank is heated to a predetermined temperature by using the midnight power up to a predetermined temperature. It is supposed to be. Further, a water supply amount sensor 28 is provided to detect the amount of water stored in the heat storage tank 13, and a time for boiling up to a predetermined temperature from this water amount and the temperature detected by the heat storage tank lower hot water temperature sensor 19. Is calculated. This calculation is performed by the heating control device 26.
[0011]
The control board 6 is provided with a clock 27 and a heating control device 26. The heating control device 26 calculates the time until the above-described boiling and subtracts the time from the midnight power end time to determine the energization start time . Then, when the arrival of the energization start time is detected by the clock 27, the heat storage heater 18 is controlled to start energization, and heating is performed until the midnight power end time by the clock 27 to obtain hot water of a predetermined temperature. It has become.
[0012]
The heat storage heater 18 is provided with a current detection sensor 30 that detects a non-energized state of the heat storage heater 18. When the heating control unit 26 detects from the current detection sensor 30 a non-energized state during the energization start time timed by the midnight power termination time of the clock 27, it determines that there is deviation in a clockwise 27, displays the current abnormality warning device 50 is displayed. Instead of this display or along with the display, a voice notification such as an alarm may be given.
With the above configuration, even if the clock 27 is out of order and the energization start is delayed and the actual energization end time is reached, the energization command is issued, but the actual power supply is stopped. It becomes possible to announce to. The user can take appropriate measures such as correcting the clock 27 by this notification.
[0013]
FIG. 2 shows an electric block diagram.
The remote controller 5 is connected to the control board 6 in the main body 1 by a communication code 101, and is connected to the CPU 103 via the communication interface 102. The CPU 103 is a one-chip microcomputer incorporating a ROM and a RAM. Based on information from the key 104 and the CPU 201 in the control board, a predetermined display is displayed on the LCD 106 and the LED 107 via the driver 105 and a buzzer 108 is sounded. The key 104 includes an operation key, a jet key, a bathing key, a heat retention key for selecting whether to perform heat retention, a heat retention temperature setting key, and the like.
[0014]
The control board 6 in the main body includes a water shortage sensor 14, a water supply amount sensor 28, an incoming water temperature sensor 20, a heat storage tank lower water temperature sensor 19, a phase detection sensor for the mixing valve 17, and a heat storage heater 18 as an output device. The circulation pump 9, the ozone generator 24 as a sterilizer, the jet solenoid valve 23, the mixing valve 17 and the like are connected via a relay, a driver, and the like. Further, the current detection sensor 30 and the timepiece 27 are connected.
Furthermore, AC100V via AC100V AC power supply side earth leakage breaker 202, transformer 203 and AC200V midnight power side earth leakage breaker 204 are connected.
[0015]
Next, the inside of the control board 6 will be described.
The DC power supply 205 receives the transformer secondary voltage and generates the circuit voltage Vcc (+5 V), Vd (+12 V) which is the power supply for the sterilizer and the jet solenoid valve, and Vb (+36 V) which is the power supply for the stepping motor of the mixing valve 17. is doing. The communication code 101 from the remote controller 5 side is connected to the CPU 201 via the communication interface 206, and exchanges information with the CPU 103 on the remote controller side. Each of the hot water temperature sensors 20 and 19 is connected to the AD input terminal of the CPU 201 via the voltage converter 207 so that the voltage changes over a necessary temperature range.
[0016]
When the operation key in the remote controller 5 is pressed to enter the operation mode, the relay 211 is turned on and the circulation pump 9 is energized to circulate the bath water. Normally, the driver 212 is turned on and the ozone generator 24 is operated to sterilize the bath water. However, when the bath key in the remote control is pressed, the bath mode is entered and the driver 212 is turned off for one hour to sterilize the device. To prevent the user from applying ozone.
[0017]
When the jet key is pressed during the bathing mode, the driver 213 is turned on to energize the jet solenoid valve 23, and air is supplied to the jet nozzle so that a water flow with bubbles can be enjoyed. When the button is pushed again, the driver 213 is turned off and the water flow is free from bubbles. In addition, after the bathing key is pressed, the mode is automatically switched to the clean mode after one hour, the driver 212 and the driver 213 are turned on, the air mixed with ozone is given to the jet nozzle, and the bath water is sterilized.
[0018]
When the power is turned on, the motor in the mixing valve 17 is moved to receive the signal from the phase detection sensor and perform initial setting. While the circulating pump 9 is in operation, the heat retention temperature set by the temperature setting key in the remote controller is compared with the detected temperature of the incoming water temperature sensor 20, and the motor in the mixing valve 17 is operated to adjust the valve to bath water. It is comprised so that temperature may be controlled in the range of heat retention temperature-heat retention temperature +0.5 degreeC.
The jet solenoid valve 23 and the ozone generator 24 are connected to the jet nozzle 21 via the air tube 25. During a clean operation other than bathing, the jet solenoid valve 23 and the ozone generator 24 are turned on, Air mixed with ozone is discharged from the jet nozzle 21 to sterilize the bath water. When bathing, the ozone generator 24 is turned off, and the jet solenoid valve 23 is turned on and off with the jet key of the remote controller 5 so that the presence or absence of the jet can be selected. The jet nozzle 21 has a narrow inner diameter so that air is mixed therein.
Reference numeral 216 stores the setting values such as the heat retention temperature and the operation mode set by the user in the EEPROM so that they do not need to be reset when the power is turned on again after a power failure.
[0019]
The midnight power energization start detector 208 detects the start of energization of the midnight power AC200V, and the heating control device 26 is configured to control the heat storage heater relay 210 by the driver 209 when the heater energization start time arrives by the clock 27. ing. That is, when the start of energization at midnight is detected (11:00 pm), the hot water temperature at the bottom of the heat storage tank 13 from the heat storage tank lower hot water temperature sensor 19 and the amount of hot water from the water supply amount sensor 28 are checked to determine the hot water in the heat storage tank. The energization time required to boil up to the temperature is calculated, and the on-time T of the relay 210 is determined by calculating backward from the midnight power end time.
[0020]
The heating control device 26 detects the non-energized state of the heat storage heater 18 from the current detection sensor 30, and when the heat storage heater 18 is deenergized during the power-on time period counted by the clock 27, sends a signal to the remote controller 5 side. The LCD 106 displays a power-on abnormality and the buzzer 108 emits a warning sound .
[0021]
The heating operation of the heat storage tank 13 will be described with reference to FIG.
It is determined whether or not it is a midnight power time zone (step S1), and if it is a midnight power time zone, the energization time to the heat storage heater 18 is determined by the amount of water supplied from the water supply amount sensor 28 and the water supply temperature from the heat storage tank lower hot water temperature sensor 19. Is calculated, and the energization start time is determined (step S2). Then, it is determined by the clock 27 whether or not it belongs to the heater energization time zone from the energization start time to the midnight power end time (step S3). If it belongs to the time zone, the heat storage heater 18 is turned on (step S4), and if it does not belong, the heat storage heater 18 is turned off (step S7), and the process returns to step S1.
When the heat storage heater 18 is turned on, the current detection sensor 30 detects non-energization (step S5), and when not energized, an energization abnormality is displayed on the display device 50 (step S6).
When the user confirms the energization abnormality by this display, the user corrects the clock 27 or confirms other abnormal parts.
With the configuration described above, it becomes possible to quickly avoid the inability to energize due to the clock 27 being out of order, and appropriate heating in the heat storage tank 13 can be performed.
[0022]
【The invention's effect】
As described above, according to the bath water purification apparatus of the present invention, when heating is performed in the means for storing using midnight power, heating can be performed at a later time in the midnight power time zone. In addition, when an energization abnormality occurs in the time zone recognized by the apparatus, it is possible to notify the user, and there is an effect that the user can appropriately cope with this.
[Brief description of the drawings]
FIG. 1 is a schematic block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of a main body 1, a remote controller 5, and a control board 6 in an embodiment of the present invention.
FIG. 3 is a flowchart for explaining the operation of the embodiment of the present invention.
[Explanation of symbols]
1: main body, 2: bathtub, 3: inlet pipe, 4: outlet pipe, 5: remote control, 6: control board, 7: pre-filter, 8: water inlet, 9: circulation pump, 10: check valve for water, 11: Restriction, 12: Filter tank, 13: Heat storage tank, 14: Water shortage sensor, 15: Filter medium, 16: Tank lid, 17: Mixing valve, 18: Heat storage heater, 19: Heat storage tank lower hot water temperature sensor, 20 : Incoming water temperature sensor, 21: Jet nozzle, 22: Outlet water temperature sensor, 23: Solenoid valve for jet, 24: Ozone generator, 25: Air tube, 26: Heating control device, 27: Clock, 28: Water supply sensor, 30: current detection sensor 30, 50: display device, 101: communication code, 102: communication interface, 103: CPU, 104: key, 105: driver, 106: LCD, 107: LED, 08: Buzzer, 201: CPU, 202: Earth leakage breaker, 203: Transformer, 204: Earth leakage breaker, 205: DC power supply, 206: Communication interface, 207: Voltage converter, 208: Late-night power supply start detector, 209: Driver 210: Heater relay for heat storage, 211: Relay, 212: Driver, 213: Driver, 214: Driver, 215: Waveform shaping circuit, 216: EEPROM, 217: Driver

Claims (2)

In the bath water cleaning device for purifying the bath water by circulating between the bathtub and the cleaning mechanism,
Means for introducing and heating and storing the bath water;
Means for supplying hot water from the means for storing to the bathtub;
A timekeeping means to recognize time,
Means for heating the bath water in the means for storing;
From the amount and temperature of water stored in the means for storing, the time until the temperature of the bath water stored in the means for storing is heated to a predetermined temperature is calculated, and from the end time of the midnight power time zone Calculating means for retroactively determining the energization start time;
A heating control means for detecting the arrival of the calculated energization start time by the timing means and starting energization of the means for heating to heat the bath water;
A bath water purifier characterized by comprising: Means for detecting a non-energized state of the means for heating;
Means for notifying the abnormality of energization when a non-energized state is detected from the means for detecting between the energization start time and the end time of the midnight power time zone , recognized by the timing means. When,
A bath water purifier characterized by comprising:

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