JPS6140934A - Controller of toilet bowl with privates cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a control device for a toilet bowl with a private parts cleaning device that cleans the private parts after defecating with washing water at an appropriate temperature.

[Technical background and problems of the invention]

In recent years, toilet bowls have been equipped with private parts cleaning devices that spray cleansing water at an appropriate temperature, allowing for hygienic post-treatment by washing the private parts with the cleansing water without any manual intervention after using the toilet. Toilet bowls have come into use.

In general, this type of toilet bowl includes, for example, an electric pump 104 located between the nozzle L/103 located at a suitable position to spray cleansing water at an appropriate temperature from the lower side of the fourth part toward the private parts of the human body. There is a so-called instant heating system in which a heating device 105 containing a heater for heating the wash water and a temperature sensor is connected via a tube in a cylindrical case, and the heater in the heating device 105 is switched to the power supply. When used, the power switch 1060 is turned on to drive the mechanical pump 104, the temperature of the water flowing into the heating device 105 is detected by the temperature sensor, and the detection signal of the temperature sensor is detected. The device is configured to control the energization of the switching element, heat the water in the heating device 105 using the heater, and jet the cleaning water at an appropriate temperature from the nozzle/l/103 to clean the private parts. . In addition, the temperature of the cleaning water is maintained at a constant temperature (approximately 38°) by controlling the heater using a temperature sensor.
C) is maintained.

However, in the private part washing device having the above configuration, the heating capacity of the heating device 105 is approximately 500 cc of water (0° C.) in 1 minute.
°C and maintain the same temperature, if the user increases the amount of washing water to 60,000/mj-n in order to quickly wash his/her private parts, then the When the temperature of the water flowing through the heating device 105 becomes 5°C or lower, the temperature of the cleaning water discharged from the nozzle 1O3 cannot be maintained at 38°C due to the increase in the amount of water discharged. There was a problem in that the temperature dropped to 36-34°C, causing discomfort to the user. To overcome this drawback, the heater capacity can be increased, but as is well known in ordinary households, the contract current (for example, 15A, 20A,
A protective safety breaker is installed based on the contract (A contract, etc.). Therefore, if the heater capacity of the heating device 105 is increased, it will be related to the usage status of other household electric appliances.
When using a local cleaning device, a current exceeding the contracted current may flow and trip the safety breaker.

[Purpose of the invention]

The present invention eliminates the above-mentioned drawbacks, detects a drop in water temperature that occurs when the amount of cleaning water spouted from a nozzle exceeds a specified value, and adjusts the water temperature to a required set temperature (approx.
By automatically adjusting the amount of water discharged to a predetermined fixed value until the temperature reaches 8℃) and always maintaining the temperature of the water discharged at the set temperature, it can be used in ordinary homes without increasing the heater capacity. To provide a toilet bowl with a private parts cleaning device that can be used within the contracted current range.

[Summary of the invention]

The present invention provides control of the thyristor that controls the energization of the electric pump when the temperature of the washing water spouted from the nozzle of the private parts washing device is lower than the required set temperature and the heater is energized. By increasing the phase angle and controlling the current supplied to the electric pump, the water discharging capacity of the pump is suppressed to adjust the amount of cleaning water spouted, and the temperature of the flushing water is controlled to always be at the set temperature. The present invention is characterized in that a toilet bowl with a private parts cleaning device is equipped with a control device for controlling the toilet bowl.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3. In addition, in FIGS. 1 to 3, the same reference numerals as in FIGS. 4 and 5 indicate the same parts.

In FIG. 1, 1 is a power supply terminal connected to an AC power source (not shown), and 2 is a case 3 of the heating device 105 (approximately 5QOC!
The heater is disposed together with a temperature sensor 4 in a heater (of a size large enough to hold water) and is connected to a power supply terminal 1 via a switching element 5 such as a triac. and,
The heating device 105 is connected to the water inlet 3a and the water outlet 3 of the cylindrical case 3.
The water supply pipes 101 are connected to and communicated with the heaters 2 and 2, respectively, and the heater 2 installed in the case 3 has a resistor printed on the surface of a hollow cylindrical ceramic and coated with a ceramic insulating layer to heat the heater 2 at high temperature. This heater 2 is placed near the water inlet 3 in the case 3, and the effluent that enters from the water inlet 3 passes through the hollow of the ceramic, contacts the surface of the ceramic, and reaches the water outlet. Water is spouted from 3b, and when this water passes over the surface of the ceramic, it is heated by the heater 2 which generates heat due to electricity supply, and is then spouted. Further, the temperature sensor 4 is formed by printing a resistor on the surface of a ceramic, coating it with ceramic and sintering it, and suspending it near the water outlet in the case 3.
The temperature of the heated washing water discharged from the water outlet 3) is detected. Furthermore, the case 3 has a structure in which a certain amount of water remains in order to prevent dry heating by the heater 2.The temperature sensor 4 detects this residual water to prevent it from being overheated by the heater 2. Controls the opening and closing of 5.

Next, the control device 6 will be explained. 7 is the power supply terminal 1
A power supply circuit 8 is connected to the temperature sensor 4 and is a resistance-voltage conversion circuit that converts a change in resistance detected by the temperature sensor 4 into a voltage and outputs the voltage. 9
is an amplifier circuit to which the output Vt of the resistance-voltage conversion circuit 8 is input, and the other input terminal thereof is heated by the heating device 105 and corresponds to the set temperature (approximately 38° C.) of the cleaning water spouted out. Using the output Vs of the reference voltage setting circuit 10 whose output is set as a voltage as an input, the difference between these two inputs is amplified and the output voltage VIO becomes a positive voltage when both inputs are Vt>V's. However, when Vt=Vs, a zero voltage F is output, and when Vt(V's, a negative voltage is output. A zero-cross detection circuit 12 that sends out a pulse signal is connected to the output terminal of the zero-cross detection circuit 11, and the output is set to zero by the pulse signal of the zero-cross detection circuit 11, synchronized with the half-wave of the AC power input to the power supply terminal 1. A sawtooth wave generation circuit that sends out a sawtooth wave output V15, 13 is an amplifier circuit 9 and a sawtooth wave generation circuit 1
The first comparator circuit connected to the output terminal of VIO2 and V15 compares both inputs VIO and V15, and the first gate drive circuit connected to the output terminal of the 'H' or 'L level circuit 13 compares these two inputs VIO and V15. , a gate signal is sent to the switching element 5 based on the input signal from the comparison circuit 13. Reference numeral 15 denotes a water discharge amount limiting circuit connected to the output terminal of the amplifier circuit 9, which inverts and amplifies the output of the amplifier circuit 9, and also quantifies the water discharge amount of the electric pump 104 when a positive voltage is output from the amplifier circuit 9. Voltage V25 that limits the amount of water discharged from the electric pump when a negative voltage is output.
Output each. 16 is a second comparison circuit connected to the output terminals of the sawtooth wave generation circuit 12 and the water discharge amount limiting circuit 15, which compares both inputs V15 and V25 and sends out an output signal of H' or "IL level". do.

A second gate drive circuit 17 is connected to the output terminal of the second comparison circuit 16, and sends a gate signal to the thyristor 18' in response to an input signal from the second comparison circuit 16.

Reference numeral 19 denotes an operation switch for the electric pump 104, which is configured in a b-contact type.

This control device 6 will be further explained with reference to FIG. 2 which shows it in detail.

The power supply circuit 7 includes a power transformer T connected to the power supply terminal 1, a diode bridge DB having an AC input terminal connected to the secondary side of this transformer T, and this diode bridge DEI.
diode D connected to the DC output end of the voltage regulator A
It is equipped with VR1, AVR2, and a smoothing capacitor C, and the output obtained by stepping down the commercial power supply and full-wave rectification, a positive constant voltage power supply terminal Vcc, and a smoothed negative constant voltage power supply -Vcc are used as operating power supplies for each of the above circuits. supply The resistance-voltage conversion circuit 8 is formed by inserting the resistance R1 and the temperature sensor 4 in series between the constant voltage power supply +Vaa and the ground, and using the connection point between the resistance R1 and the temperature sensor 4 as the output terminal. The resistance value corresponding to the detected temperature and the voltage-divided output by the resistor R1 are sent out from the output end of the resistance-voltage conversion circuit 8 as the output Vt. The reference value setting circuit 10 is a constant voltage power supply +V
A variable resistor VRI and a resistor R2 are inserted in series between the cc and the ground, and the connection point between the variable resistor VRI and the resistor R2 is formed as an output terminal. A reference value of 38° C.) is set, and a voltage corresponding to this value is sent out as an output. The amplifier circuit 9 connects the inverting input terminal of the operational amplifier A1 with multiple power supplies to the output terminal of the reference value setting circuit 10 via a resistor R3, and connects the non-inverting input terminal to the resistor -
It is connected to the output terminal of the voltage conversion circuit 8 via a resistor R4, and a resistor R5 is inserted in series between the inverting input terminal and the output terminal of the operational amplifier A1. A resistor R6 is inserted in series between and ground, and the output V1o of the operational amplifier A1 is Vlo = -(Vt-Vs)...
...(1). Therefore, the output ■10 of the operational amplifier A1 is, from the above equation α), a positive voltage when vt>vs, a zero volt when t=■■, and a negative vehicle pressure when V14V■. It is amplified by the amplification degree and output. The zero cross detection circuit 11 connects the collector of a common emitter transistor Q1 to a constant voltage power supply Vcc via a resistor R7, inserts a resistor R8 between the base and emitter, and further connects a diode D1 with a cathode connected to the base. The anode of the transistor Q1 is connected to the DC output terminal of the diode bridge DB via a resistor R9.
A voltage obtained by dividing the full-wave rectified voltage from the diode bridge DB by resistors R9 and R8 is supplied to the base of the transistor Q, and a voltage of, for example, 0.6
It turns on when a voltage exceeding 0.6 ■ is supplied to the base, and turns off when a voltage less than 0.6 ■ is supplied to the base. That is, transistor Q1 is turned off when the full-wave rectified voltage is close to zero, and the output terminal (
collector) outputs the output signal of the IH level.

The sawtooth wave generation circuit 12 includes resistors Rho, R'll and a capacitor C1 inserted in series between the constant voltage power supply +Vcc and the ground, and a diode D2i) cathode whose anode is connected to the connection point of the resistors RIO and Fjll with the emitter grounded. The collector of each transistor is connected, the output terminal of the zero cross detection circuit 11 is connected to the base of this transistor, and the transistor Q1 is connected to the collector of each transistor. When the level output signal is output, a base current flows through the transistor □□□ through the 'H level resistor R7, and the transistor W is turned on. Further, when an output signal of the 'L# level is outputted from the transistor Q1, no current flows to the base of the transistor Q1, so that the transistor Q1 is turned off. and,
When the transistor Q2 turns off, the capacitor C1 is charged through the resistors RIO and R11, and the voltage at the output terminal rises, and when the transistor Q2 turns on, the capacitor C1
is discharged in a circuit consisting of resistor R11, diode D2, transistor 0, collector emitter capacitor C1, and the voltage at the output terminal is rapidly brought to zero, creating a sawtooth waveform synchronized with the half-wave of the AC power input to power supply terminal 1. An output V15 is output. The first comparison circuit 13 connects the output terminal of the operational amplifier A1 of the amplifier circuit 9 to the inverting input terminal of the operational amplifier A3 of the multi-power supply, and connects the output terminal of the sawtooth wave generation circuit 12 to the non-inverting input terminal. 9 output v
When the output V15 of the sawtooth wave generation circuit 12 is larger than 10, (■15≧■10) the 7H' level output signal from the operational amplifier A3, and conversely, the 5L'' level output signal from the operational amplifier A3 in the case of ■15 (VIO). The output signals of the first gate drive circuit 1 are sent out through the resistors R12, respectively.
4 has a built-in photocoupler PCI having a pair of light emitting diodes LEDI, LED2 and light receiving elements PEI, PE2, and its configuration is such that a transistor Qv) with a common emitter is connected to the output terminal of the operational amplifier A3, and a resistor R12. is connected to the base of transistor Q3 and resistor R12.
A resistor R13 is connected and grounded to the connection point of the transistor Q.
A resistor R is connected between the collector of No. 3 and the constant voltage power supply +Vaa.
Light emitting diodes L [Dl, L
A light emitting part of a photocoupler PCI consisting of ED2 is inserted, and a pair of light receiving elements P El, P E275 such as photothyristors are connected in anti-parallel between the gate of the switching element 5 and the first anode via a resistor R21. When a light-receiving part of a photocoupler POl having a relationship of By turning on Q3, the photocoupler PC1 is driven to turn on the switching element 5, and conversely, the operational amplifier A3 is turned on.
When a signal of 5L level is output from the transistor Q
3 is turned off and the photocoupler PCI does not drive, so the switching element 5 is turned off. Note that the first anode of the switching element 5 is connected to the heater 2. The water discharge amount limiting circuit 15 connects the inverting input terminal of the operational amplifier A2 of the plurality of power supplies to the output terminal of the operational amplifier A1 of the amplifier circuit 9 via a resistor R14, and connects the non-inverting input terminal to the ground. A resistor R15 is inserted in series between the inverting input terminal and the output terminal. Then, the voltage Vzo output from the operational amplifier A2 is set as follows.

That is, when the output voltage VIO from the amplifier @ circuit 9 is a negative voltage, the output terminal of the operational amplifier has a positive voltage ■2o.
Conversely, when vlo is a positive voltage, a negative voltage is output from the output terminal of the operational amplifier A2/). Further, the output terminal of the operational amplifier A2 is connected to the cathode of the diode whose anode is grounded via a resistor R16.
The connection point between this resistor R16 and the cathode of the diode (Did) is designated as X, and between this connection point Insert resistor VR2 in series,
When the output voltage from the operational amplifier A2 is a negative voltage, the voltage at the connection point X becomes constant at a voltage lower than zero by the forward voltage VD2 (for example, 0.6V) across the diode D.

Therefore, the output V25 from the water discharge amount limiting circuit 15 is 10v.
cc+V D2: X V R2-V D2-, -,,
, old-■・(3)R1'7-)VB2, 'V25 becomes a constant voltage, and the operational amplifier A4 of the second comparator circuit 16 connected to the output terminal of the water discharge amount limiting circuit 15 is inverted. Input to input terminal.

On the other hand, when the output voltage of the operational amplifier A is a positive voltage, the output V25 of the water discharge amount limiting circuit 15 is outputted. Also, the operational amplifier A4o of the second comparator circuit 16
The output terminal of the sawtooth wave generation circuit 12 is connected to the non-inverting input terminal, and when the output V15 of the sawtooth wave generation circuit 12 is larger than the output V25 output from the water discharge amount limiting circuit 15, (■15≧■25 ) Operational amplifier A4 to 'H#
conversely, when V25<■15, the 'L level output signal is output from the operational amplifier A4, and the resistor R
Send via 1B.

Similar to the first gate drive circuit 14, the second gate drive circuit 17 includes a light emitting diode LF. It has a built-in photocoupler P C2 that has D3 and a photodetector PE3, and its configuration consists of a resistor R1B at the output end of the operational amplifier A.
The base of the transistor Q4 whose emitter is common is connected through the resistor R.
1B, a grounded operation switch 19 and a resistor R19 are connected in parallel, and a transistor Q4
There is a resistor R2 between the collector and the constant voltage power supply +CC.
Insert a photocoupler PC initial source consisting of a light emitting diode LED3 connected in series with thyristor 1, and
．． A light receiving section of a photocoupler PC2 consisting of a light receiving element PE3 such as a photothyristor connected in series via a resistor R23 is inserted between the gate of the second comparison circuit 16 and the anonide. When a signal of 'H level is output from , the resistor R is connected to the transistor Q rebase
A base current flows through 18 and turns on transistor Q4, thereby driving photocoupler PC2 and turning on thyristor 18. Conversely, when a signal of 'L level is output from operational amplifier A4, transistor Q< Since the thyristor 18 is turned off and the photocoupler P02 is not driven, the thyristor 18 is turned off.

Note that the anode of the thyristor 18 is connected to the electric pump 104. Further, since the electric circuit of the operation switch 19 is closed unless the operation switch 19 is opened by manual operation, the output from the second comparison circuit 16 is connected to the operation switch 19.
The signal is not grounded through the gate drive circuit 17 and sent to the second gate drive circuit 17.

Next, its operation will be explained. First, by connecting the power supply terminal 1 to an AC power supply (not shown) and turning on the power switch 106, the constant voltage power supply +Vcc is supplied from the power supply circuit 7.
, , -Vcc is supplied to each circuit. Next, when the operation switch 19 of the electric pump 104 is opened, the temperature detected by the temperature sensor 4 is low in the initial stage, so the resistance value is also low, and therefore the inputs of the amplifier circuit 90 are in the relationship of Vtreny Vs. Therefore, from the amplifier circuit 9, (1)
The negative voltage VIO obtained by the formula is output, and in response to this, the first comparator circuit 13 outputs an output signal of "IHI level p," and the negative voltage Vlo from the amplifier circuit 9 is inverted and amplified, and the resistor R16, R17,
Yes, from the second comparison circuit 16 into which the voltage output from the water discharge rate limiting circuit 15 is inputted via the variable resistor R2, the control phase is higher than the control phase of the set value that sets the water discharge rate of the electric pump 104. The output becomes a square ← Signal is output 20% power is applied to 1, first and second gate drive circuits 1
4.17 transistor Q3. Q4 is turned on, thereby driving the photocouplers P C1 and P C2, turning on the switching element 5 and the thyristor 18, energizing the heater 2, and turning on the electric pump 104.
The washing water flowing into the heating device 105 is heated to a required set temperature (approximately 38° C.). Warming device 10
When the operation switch 19 is closed at the point when the water flowing through the nozzle/L' 103 overflows, the output from the second comparator circuit 16 is grounded by the operation switch 19 via the resistor R1B, and the The signal is no longer sent to the gate drive circuit 17 of No. 2. Therefore, the transistor Qe is turned off and no current flows to the gate of the thyristor 18, so the thyristor 18 is also turned off, stopping the electric pump 104 and stopping the water flow to the heating device 105. On the other hand, when the water temperature in the heating device 105 detected by the temperature sensor 4 exceeds the set temperature, both inputs of the amplifier circuit 9 have a relationship of Vt>VeD, and from the output terminal of the amplifier circuit 9, A positive voltage obtained from the formula is output. Therefore, by multiplying the output of the first comparison circuit 13 and turning off the transistor Q3, current no longer flows to the gate of the switching element 5, and the switching element 5 is also turned off to stop energizing the heater 2. Stop.

In this state, the hot water in the heating device 105 is sprayed (nozzle) V 103
A case will be explained in which the private parts are washed by discharging water from the device.

First, when the operation switch 19 is opened at time t in FIG. 3, the output signal from the second comparator circuit 16 is sent to the second gate drive circuit 17, turning on the transistor Q4, thereby turning on the photocoupler P02. The gate current is applied to the gate of the thyristor 18 by driving the thyristor.
18 is turned on to drive the electric pump 104. By driving the electric pump 104, the cleaning water in the heating device 105 is pushed out and ejected from the nozzle 103 to cleanse the private parts.

At this time, if the temperature of the cleaning water spouted from the nozzle zlz103 is equal to or slightly higher than the set temperature, the input of the amplifier circuit 9 (the input in FIG. 3, 9) is in the relationship vt≧Vsz, so the amplifier circuit From the output end of 9 (output in FIG. 3, 9), a positive voltage or zero point) /L/ is output. On the other hand, the zero-cross inspection circuit 11 that receives the full-wave rectified voltage from the diode bridge DB is turned off while the base input of the transistor Q1 is lower than the base-emitter voltage (0, ]V) and transmits a pulse signal from the collector to the power supply terminal. 1 (output in FIG. 3, 11), the sawtooth wave generating circuit 12 receives the output in synchronization with the zero point of the power supply voltage input to the
When the V signal is received, the transistor Q2 is turned on to discharge the capacitor O1, and while the palme signal is stopped, the transistor Q2 is turned off and the capacitor C1 is charged by the constant voltage power supply +VCC through the resistors RIO and R11. As a result, a sawtooth waveform output signal (output shown in FIG. 3, 12) is generated in synchronization with the zero point of the AC power supply. This output signal is calculated by transistor QW>collector-emitter saturation voltage and forward voltage drop of diode D2 (0,
Only 6V) is at zero level! It is occurring repeatedly at a raised level. (Input in Figure 3 13) Therefore, the output of the first comparator circuit 13 continues the H level when the input 1o is a positive voltage or zero voltage (Lz) and the relationship LO<V15. This signal becomes the input to the transistor of the first gate drive circuit 14 and causes the base current to flow, and as a result, current flows to the light emitting diodes LEDI and LED2 of the photocoupler PCI, causing light emission. The diodes LEDI and LED2 emit light, and in response to this light, the light receiving elements P Ha and P E2 are turned on, and a gate current flows to the gate of the switching element 5, and the switching element 5 is controlled in phase at a certain phase angle of the AC power source ( (output shown in FIG. 3), the heater 2 is energized, and the cleaning water flowing into the heating device 105 is heated. Furthermore, when both inputs of the first comparator circuit 13 have a relationship of 'VIO>V15, the output of the first comparator circuit 13 turns off the transistor Q3 of the gate drive circuit 14 of the 'L level, so that the photocoupler PC1 emits light. Diode L E
DI, LEDJ-j are extinguished, gate current no longer flows through the switching element 5, and the switching element 5 is turned off. In this way, by controlling the conduction angle of the switching element 5 via the first gate drive circuit 14 based on the signal output from the first comparator circuit 13, the energization of the heater 2 is controlled, and water is spouted from the nozzle 103. The water discharge temperature of the washing water is maintained at the set temperature.

When the output V4o of the amplification half circuit 9 is a positive voltage or zero point μ, when this output (1o) is input to the water discharge amount limiting circuit 15 via the resistor R14, the output (10) is inverted and amplified and calculated. Since a negative voltage or a voltage of zero volts is output from the amplifier A2C+ output terminal (output of A2 in FIG. 3), the voltage at the connection point L/), the voltage is lower than that or is constant at zero port, and the second comparator circuit 16
The voltage V25 set by equation (3) is input to.

In addition, the output ■15 from the sawtooth wave generation circuit 12 is input to the second comparison circuit 16 (input shown in FIG. The output signal of 'IP level from the output terminal of the comparator circuit 16 is connected to the resistor R1.
This signal is sent to the second gate drive circuit 17 via the transistor Q of the second gate drive circuit 17.
It becomes an ac+ input and a base current flows, and as a result, the photocoupler PC2F) light emitting diode LED3 emits light, receives this light and turns on the light receiving element PE3, and a gate current flows to the gate of the thyristor 18, and the thyristor 1
8 is controlled at a certain phase angle of the AC power source (as shown in FIG. 3, 18) to generate the electric pump 1.

4 is driven at a constant rotation speed, and a fixed amount of cleaning water at a set temperature is spouted from the nozzle 103. In other words, the cleaning water is supplied to the nozzle 10 while the water discharge temperature of the second cleaning water is maintained at the set temperature.
When water is being spouted from the heater 3 (in case the heater 2 is not fully energized and the cleaning water is controlled to the set temperature by repeatedly turning on and off under the control of the switching element 5), , the thyristor 18 is controlled at a constant phase angle, and the amount of cleaning water discharged by the electric pump 104 is made constant.

Next, when the wash water is maintained at the set temperature and is being spouted at a constant rate, the user can quickly wash the private parts, and at time tl in Figure 3, the user operates the variable resistor V R2 to control the wash water. A case will be explained in which the amount of water discharged is increased. In this case, for example, the heating capacity of the heater 2 is 500 CC/
When the water discharge rate is increased to 600 CC/mix when there is the ability to continuously heat the washing water at , the water discharge temperature drops below the set temperature. Therefore, it is detected by the temperature sensor 4 and the amplifier circuit 9
Since the input voltage V input to the reference voltage setting circuit 10 is smaller than the input VS from the reference voltage setting circuit 10 (■KvS), the amplifier circuit 9 outputs a negative voltage VIO. This negative voltage V
IO is input to the first comparison circuit 13 and the inverting amplifier circuit 15. The negative voltage ■10 input to the first comparison circuit 13 is smaller than the input ■15 input from the sawtooth wave generation circuit 12 to the first comparison circuit 13 (the sawtooth wave is more than zero volts). , first comparison circuit 13
An output signal of m level is always sent to the first gate drive circuit 14, which turns on the switching element 5 from the zero degree phase to fully energize the heater 2. Further, the negative voltage (10) inputted to the water discharge amount limiting circuit 15 is inverted and amplified and output as a positive voltage Vzo from the output terminal of the operational amplifier A2C1. When the operational amplifier A2 outputs a positive voltage V20, the voltage V20 is output from the operational amplifier A2.
Since 20 is the voltage set by equation (4), that is, when a negative voltage is output from the water discharge amount limiting circuit 15, it becomes a voltage higher than the voltage set by equation (3) and the second voltage is set by equation (3). It is input ('V25) to the comparison circuit 16 of . Therefore, the output signal of "H# level" (see FIG. 3) is sent from the second comparison circuit 16 to the second gate drive circuit 17
6), the width of the signal sent out from tl to tl in FIG. 3 is constant, whereas the signal sent out from tl to t2 has a different width.

Therefore, the phase angle of the thyristor 18 (output of Fig. 3 18)
From the angle represented by t - tl in Figure 3, t1
The amount of water discharged from the electric pump 104 is forcibly suppressed by controlling at a large phase angle such as the angle shown up to t2 and limiting the current supplied to the electric pump 104. That is, the nozzle /l/ by the electric bonder 104
The amount of cleaning water spouted from 103 is 600CC! /
Reduce from min to 500CO/min. Accordingly, the amount of washing water that is passed through the heating device 105 also decreases. This means that when the amount of water flowing to the heating device 105 is reduced by 500 CC/mi, nt, the switching element 5 turns on from the zero phase and turns on the heater 2, as shown at t:L-t217) in FIG. Fully energize 5
Since it has the ability to heat the cleaning water of 00Co/m'xn to the set temperature, a negative voltage was output from the output terminal of the amplifier circuit 9 due to an increase in the amount of water spouted, but this limits the water spouting ability of the electric pump. By doing so, a positive voltage or zero port is output. As a result, the water discharge amount limiting circuit 15 also outputs a negative voltage or zero voltage instead of the positive voltage. Therefore, the voltage at the connection point X becomes constant and is input to the second comparator circuit 16.
The thyristor 18 is controlled at a constant phase angle by the signal sent from the thyristor 6 via the second gate drive circuit 17 (the output in FIG. 3 changes from the state of tl-ts to t-tl). Return to state.

In this way, when the water discharge rate of the electric pump 104 is increased and the discharge temperature of the cleaning water drops below the set temperature, the electric pump 104 is controlled by a command from the control device 6.
By controlling the drive of the heater 2 and discharging water in an amount commensurate with the heating capacity of the heater 2, it is possible to always discharge cleaning water maintained at a set temperature.

If the amount of water spouted is suppressed, the switching element 5 performs phase control at a certain point in the phase angle of the AC power supply, cancels the full energization state of the heater 2, and causes the heater 2 to be flushed with cleaning water at the set temperature. It goes without saying that the energization should be controlled within a possible range.

Furthermore, an electric valve or a flow control valve may be used instead of the electric pump for discharging the washing water.

〔Effect of the invention〕

Since the present invention is configured as described above, it has the following effects.

(1) It is possible to automatically drive and control the amount of water discharged according to the heating capacity of the wash water by the heater, so when the water is being sprayed at the set temperature, the amount of water spouted can be adjusted. By temporarily increasing the temperature, even if the water discharge temperature drops below the set temperature, the amount of water spouted can be immediately controlled and the water at the set temperature can be spouted. It is possible to eliminate the disadvantage of causing discomfort to the user due to a drop in the temperature of the washing water.

C) In particular, in the season (summer) when the temperature of the washing water before heating is relatively high, it is possible to obtain washing water at an appropriate temperature even if the amount of washing water is increased. Even if the equipment is set to increase the amount of water, the amount of water spouted will vary depending on the time of use, as the structure allows for a fixed amount of water to be spouted at the set temperature. Since there is no need to set the amount of water, it can be easily used by the elderly, women, and others.

(3) Furthermore, since there is no need to increase the capacity of the heater more than necessary, it can be safely used within the contracted current range for general households, making it a product suitable for equipment used in general households. .

[Brief explanation of drawings]

FIG. 1 is a block diagram of a control device showing an embodiment of the present invention;
FIG. 2 is a circuit diagram embodying the control device of the present invention, FIG. 3 is a time chart diagram explaining the present invention in detail, and FIG.
FIG. 5 is a partially cutaway plan view and side view of a toilet bowl with a private parts cleaning device. 5. Switching element 7. Power supply circuit 8. Resistance-voltage conversion circuit 9. Amplification circuit 10. Reference value setting circuit 1. Zero cross detection circuit 12. Sawtooth wave generation circuit 13. 16. First and second comparison circuit 15. Water flow restriction circuit 14.17・First and second gate drive circuit

Claims (1)

[Claims] In the middle of the water supply pipe connecting the water supply source and the cleaning nozzle,
A water discharge amount control device such as an electric pump that controls the amount of water discharged and a heating device that heats the cleaning water are inserted, and the heating device is equipped with a heater and a temperature sensor to drive the water discharge amount control device. In a toilet bowl with a private parts cleaning device, which sprays cleansing water warmed by a heating device from a nozzle to clean the private parts when the water is heated, the water spouting amount control device is connected to a power source via a thyristor that controls energization. A heater provided in the heating device is connected to a power source in parallel with the water spouting amount control device via a switching element that controls energization to the heater, and a temperature sensor is connected to the switching element and each gate of the thyristor. A resistance-voltage conversion circuit outputs the change in resistance as a voltage, and a reference value setting circuit is determined based on the set temperature of the cleaning water jetted from the nozzle.These inputs are connected, and the output of the resistance-voltage conversion circuit is set to the reference value. There is an amplifier circuit that outputs a negative voltage when the output is below and a positive voltage when the output is above the reference value, a sawtooth wave generation circuit that outputs a sawtooth wave output synchronized with the power supply, and the output of this circuit. a first comparator circuit that sends out an "H" level output for a period greater than the output of the amplifier circuit; and a water discharge amount control device that inverts and amplifies the output of the amplifier circuit and when a positive voltage is output from the amplifier circuit; It outputs a constant voltage that maintains the amount of water spouted at a constant level, and when a negative voltage is output from the amplifier circuit, outputs a voltage that limits the amount of water spouted from the water amount control device and maintains it at a constant state. and a second comparison circuit that limits and sends out the "H" level output during a period when the output from this circuit is smaller than the output of the sawtooth wave. The comparison circuit outputs a signal to control the energization to the switching element, and the second comparison circuit outputs a signal to control the energization of the thyristor. A control device for a toilet bowl with a private parts cleaning device, characterized in that the temperature is controlled within a range in which a set temperature can be maintained.