JPH0414534A - Preventer for maloperation of sanitary cleaner - Google Patents

Abstract

PURPOSE:To prevent the maloperation of a cleaner by a method in which a resonance circuit sending out AC according to electrostatic capacities with the interposition of human body is provided to a stool, and a solenoid valve for discharging cleaning water is controlled to make it open by a comparator circuit for the resonance circuit. CONSTITUTION:An electromagnetic controller 20 consists of a power source circuit 12, a resonance circuit 21, a resonance circuit 22, a detection smooth circuit 23, a reference circuit 24, a comparison circuit 25, a water discharge command circuit 26, and a switch operation circuit 27. The circuit 22 sending out AC according to electrostatic capacities of human body is provided to a heater 30 for heating stool, consisting of electrode A and the electrode B of toilet face. A solenoid valve 5 for discharging cleaning water, which sends out given signals from the circuit 25, is provided and controlled to make it open. Cleaning switch can thus be operated only when user sits on the stool.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sanitary cleaning device that hygienically cleanses the private parts of a human body by spraying warm water onto the private parts of the human body after defecating. This invention relates to an erroneous operation prevention device for a sanitary washing device in which washing water does not spout out even if a washing switch that spouts out washing water heated to an appropriate temperature is operated unless the person is sitting on a toilet seat placed on the toilet seat.

[Conventional technology]

In recent years, the popularity of sanitary cleaning devices that use cleansing water (warm water) heated to an appropriate temperature to wash private parts after using the toilet in a hygienic and comfortable manner has been remarkable. The sanitary cleaning device described above, for example, as shown in FIGS. 1 and 2,
A horizontally elongated control box 3 is attached to the rear of the upper surface of a Western-style toilet bowl 2 on which a toilet seat 1 is mounted such that it can be raised and lowered.Inside the control box 3, a water supply pipe 4 connected to a water supply source (not shown) is connected to a solenoid valve 5 and The cleaning water is piped through a heating device 6 that heats it to an appropriate temperature, and a nozzle 7 for jetting cleaning water is installed at the tip of the water supply pipe 4.
It is attached so that it can move forward and backward at a predetermined angle toward the interior of the toilet bowl 2.

In use, cleaning water is heated by a heater 10 installed in the heating device 6 and connected to a commercial power source 8 via a switching element 9 as shown in FIG. 7, and the temperature of the heated cleaning water is adjusted. is detected by a temperature sensor (not shown),
This detection signal is sent to the control device 11, and the control device 11 sends a gate signal to the switching element 9 based on the detection signal to control the energization, so that the cleaning water flowing into the heating device 6 can be used. The cleaning water is heated to a certain temperature and jetted from a nozzle 7 for the private parts of the human body to hygienically clean the user's private parts.

When operating the sanitary cleaning device, as shown in FIG. 2, an operating value is provided that is extended to one end of the control box 3 to accommodate the control device 11 and the power supply device 12 (see FIG. 7). Push-button switch S+ located on the top of 3a
For example, when you turn on the switch S labeled "Washing", "St"Drying", and "Sir Toilet Seat", the solenoid valve 5 is opened and the washing water is supplied from the water supply source through the water supply pipe 4. The washing water flows into the heating device 6, and the washing water flows into the heating device 6.
Buried inside and #covered! I] The heater 10, which is energized and controlled by the command from 1, instantaneously heats the water to a temperature suitable for cleaning and ejects it from the nozzle 7. After cleaning the private parts, if the user wants to stop the jetting of the cleaning water, the switch S is pressed again to cut off the on state, and the solenoid valve 5 closes to stop the jetting of the cleaning water.

In addition, by operating a switch S labeled "Drying", a hot air blower (not shown) is driven to blow hot air toward the private parts, thereby drying the private parts that have become wet due to washing. or,
To warm the toilet seat L, press the switch S labeled "Toilet Seat"
2 to energize a heater (not shown) wired inside the toilet seat 1 to warm the surface of the toilet seat 1 to a comfortable temperature suitable for sitting.

The power supply device 12 shown in FIG. 7 includes a wLIIi whose primary side is connected to the commercial power source 8, a transformer 13, a diode bridge 14 whose AC input terminal is connected to the secondary side of the transformer 13, and a diode bridge. It consists of a smoothing capacitor C3 connected in parallel to the 14 DC output terminals, and a smoothing capacitor C2 connected between the output terminal of the voltage regulator AVH and the ground. The wave-rectified DC constant voltage power supply Vcc is supplied to the control device 11 as an operating power supply.

[Problems to be solved by the invention]

However, in the sanitary washing apparatus, when opening the solenoid valve 5 when cleaning private parts, for example, a solenoid valve control device 16 shown in FIG. 8 has been used.

This electromagnetic valve control device 16 is composed of a relay X and a switch S inserted in series between a constant voltage power supply Vcc and ground, and a diode D inserted between the terminals of this relay X. When the switch S1 is pressed, , the relay X was energized and its normally open contact Xa (for example, inserted into the circuit of the solenoid valve 5 in FIG. 7) was closed to open the solenoid valve 5.

However, in the structure of the electromagnetic valve control device I6, for example, when cleaning the toilet bowl 2 or the like, or when the switch labeled "cleaning" is mistakenly placed on the operating cylinder 3a, When S is pressed, the solenoid valve 5 is immediately opened, and washing water heated by the heating device 6 is jetted out from the nozzle 7, which may wet the clothes of the cleaner or the like or flood the toilet floor. there were.

In order to solve the above problem, for example, a mechanical weight switch or detection sensor is attached to the bottom of the toilet seat at a location corresponding to the top surface of the toilet bowl, and when a user sits on the toilet seat, it is possible to detect the sitting position based on the user's weight. Alternatively, it is possible to sit on the toilet using an infrared or ultrasonic sensor installed close to the toilet seat. However, in the former case, it is not possible to distinguish between the human body and the object, and even if an object is placed on the toilet seat, it may be detected that the person is sitting on it, or vice versa.
In the case of a child who is light in weight, there is a possibility that seating cannot be detected reliably. In the latter case, even if the user is not seated on the toilet seat, if a person or object approaches the toilet seat, it may be mistakenly determined that the user is seated. In this way, even if a weight switch or sensor is installed, there are many cases where it is mistakenly determined that the seat is seated, and in this case, the user may mistakenly ``wash'' the seat.
When the switch S1 is turned on, there is still the problem that cleaning water is ejected from the nozzle, and this cannot be a solution for preventing erroneous operation.

In view of the above-mentioned problems, the present invention makes it possible to turn on the switch labeled "Washing J" of the sanitary washing device only when the user is seated on the toilet seat. To provide a device for preventing erroneous operation of a sanitary washing device, which prevents washing water from spouting out and wetting the user's clothes, the floor of a toilet, etc.

[Means to solve the problem]

The present invention includes an oscillation circuit that outputs a high-frequency signal of a sine wave at a constant frequency, a high-frequency transformer, a resonant coil connected in series with the oscillation circuit on the primary side of the transformer, and a commercial power supply on the secondary side. a resonant circuit comprising a heater for heating a toilet seat and a choke coil inserted and connected in series between the resonant circuit; a detection smoothing circuit that rectifies the current flowing through the resonant circuit into direct current and outputs a smoothed voltage; A reference voltage setting circuit that is connected to an oscillation circuit and outputs a preset reference voltage, and an oven collector output comparator, the inverting input terminal of which is connected to the output end of the reference voltage setting circuit,
In addition, the non-inverting input terminal is connected to a comparison circuit connected to the output end of the detection smoothing circuit, a command circuit for discharging cleaning water equipped with a "cleaning" switch, and one of the input terminals is connected to the output end of the comparison circuit. The other input end is an AND circuit connected to the water discharge command circuit, a switch operation circuit equipped with a common emitter transistor connected to the output end of the AND circuit, and a relay for controlling a solenoid valve connected to the collector of this transistor. This constitutes a solenoid valve control device for preventing malfunctions in sanitary washing equipment, and its functions are as follows.

[For production]

In the present invention, the heater in the resonant circuit is set as one electrode, and the other electrode is set to the ground, and when the toilet seat is not seated,
Since there is only the capacitance between the two electrodes or the dielectric weight of the air, the resonance frequency that occurs in the resonant circuit becomes extremely small and becomes high, that is, it deviates greatly from the oscillation frequency output from the oscillation circuit. Since only a small amount of resonant current flows through the resonant circuit, the voltage generated across the resonant coil is also low, and as a result, the output terminal of the comparator circuit outputs "L"
” level signal is output, so the transistor remains off and does not energize the solenoid valve control relay. Therefore, even if you turn on the "cleaning" switch in this state, the solenoid valve will not open and will remain closed. This will prevent cleaning water from being discharged.

On the other hand, when a toilet user sits down, the capacitance between the electrodes increases rapidly, which causes the resonance frequency determined by the capacitance between the electrodes and the resonant coil to change, or the oscillation frequency output from the oscillation circuit. When they match or come close to each other, a large resonant current flows through the resonant circuit, thereby changing the output from the comparator circuit from "L" level to "H" level.

When the "cleaning" switch is turned on in this state, the switch operation circuit, that is, the solenoid valve control device operates, and cleansing water heated to an appropriate temperature is jetted from the nozzle to clean the private parts. This feature prevents the solenoid valve control device from malfunctioning even if the switch labeled "Cleanse J" is turned on by mistake, such as when the user is not seated on the toilet seat or when an object is simply placed on the toilet seat. shall be.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 2 to 6. Note that in FIGS. 2 to 5, the same reference numerals as in FIGS. 1, 7, and 8 indicate the same parts.

FIG. 5 shows an electric circuit diagram of a solenoid valve control device 20 used in the malfunction prevention device for sanitary washing equipment of the present invention.The solenoid valve control device 20 can be roughly divided into two types: It is composed of an output power supply circuit 12, an oscillation circuit 21, a resonance circuit 22, a detection smoothing circuit 23, a reference voltage setting circuit 24, a comparison circuit 25, a water discharge command circuit 26, and a switch operation circuit 27. There is.

Next, the configuration of each of the circuits will be explained.

The power supply circuit 12 connects a commercial power supply 18 to a solenoid valve 5, a normally open contact Ya of a relay Y provided in a solenoid valve control circuit 20, and a heating bag f.
Cleaning water heating heater 10 and control device 11 attached to t6
A switching element 9 that controls the energization of the heater 10 based on a command signal from the power supply transformer 13 is connected in parallel with the primary side of the power transformer 13, and the secondary side of the power transformer 13 is connected to the control device 11 and a solenoid valve described later. It is configured to include an output terminal similar to the conventional one for supplying a stable DC constant voltage power supply Vcc to each circuit of the control circuit 20 and the toilet seat temperature control device 28.

The oscillation circuit 21 receives a constant voltage power supply Vcc and outputs a sine wave high frequency signal (for example, 500KH2) from its output terminal.
) is provided to be sent at a constant frequency to a resonant circuit 22, which will be described next, and a reference voltage setting circuit 24, which will be described later.

Next, the resonant circuit 22 consists of a high frequency transformer 29 (hereinafter referred to as the high frequency transformer), a heater 30 for keeping the toilet seat warm attached to the inner surface of the seat body of the toilet seat l, a choke coil 31 and a resonant coil 32. One of the primary sides of the high frequency transformer 29 is connected to the output end of the oscillation circuit 21, and the other side is grounded via the resonance coil 32, and the secondary side is connected to a heater for keeping the toilet seat warm (hereinafter referred to as , simply called toilet seat heater) 30
A resonant circuit 22 is constructed by inserting in series a switching element 33 that controls the current flow of the toilet seat heater 30 according to a command signal from the toilet seat temperature control device 28, and a choke coil 31 and connecting it to the commercial power source 18. This resonant circuit 2
The choke coil 31 inserted and connected to the secondary side of the high frequency transformer 29 in No. 2 has a low impedance to a low frequency power source such as the commercial power source 18, and has a low impedance to a high frequency signal output from the oscillation circuit 21. High impedance is used. Therefore, due to the presence of the choke coil 31, the toilet seat heater 30 does not have any trouble when being energized from the commercial power source 18, but it is insulated from high frequency signals and the high frequency signals are transmitted to the heater 3.
Since it can prevent looping into the energized circuit of 0,
That is, since the heater 30 is designed not to close in response to high frequency signals due to its energizing circuit or the choke coil 31, the toilet seat heater 30 side is used as one electrode A, and the ground side, for example, the floor of the toilet. 40 can be used as the other electrode B.

Note that the high frequency signal output from the oscillation circuit 21 is constantly flowing through the resonance coil 32 connected to the primary side of the high frequency transformer 29, but when the capacitance between the electrodes A and B is small (toilet seat 1), the oscillation frequency of the oscillation circuit 21 and the resonance frequency of the resonant circuit 22 are wide (deviated), so the voltage generated across the resonant coil 32 is low.For this reason, The oscillation frequency output from the oscillation circuit 21 is determined by the capacitance C between the electrodes A and B and the inductance L of the resonance coil 32 due to the presence of a human body between the electrodes A and B.
By selecting the constant to match the resonant frequency of the resonant coil 32, when the user sits on the toilet seat 1, the resonant current flowing through the resonant circuit 22 becomes maximum, thereby increasing the voltage generated across the resonant coil 32. (maximum).

The detection smoothing circuit 23 has an anode of a detection diode D connected to a connection point between the primary side of the high frequency transformer 29 and the resonant coil 32, and a cathode connected to a resistor R1 and a capacitor C connected in parallel with the resonant coil 32. The resonant current (AC output) flowing through the resonant circuit 22 is half-wave rectified by the detection diode D2, and the resistor R1
It is smoothed by the CR time constant set by the capacitor C3 and outputs a DC output (Vt).

The reference voltage setting circuit 24 connects the anodes of a current detection resistor R3 and a detection diode D, which are inserted and connected between the output end of the oscillation circuit 21 and the ground to detect the AC output from the oscillation circuit 21, and a detection diode D. The output terminal is connected in parallel with the current detection resistor R2, and the cathode is connected to the resistor R1 and capacitor C.
The AC output from the oscillation circuit 21 is detected by a current detection resistor R1, and the current generated across the resistor R1 is half-wave rectified by a detection diode D. It outputs the output (reference voltage) Vs set by the CR time constant with the capacitor C4.

The comparison circuit 25 includes an oven collector output comparator CP, an inverting input terminal of which is connected to the output end of the reference voltage setting circuit 24, and a non-inverting input terminal connected to the output of the detection smoothing circuit 23. Furthermore, the output terminal of the comparator CP is connected to the constant voltage power supply VCC via a resistor R4, and this comparator CP has a reference voltage Vs inputted to the inverting input terminal and a non-inverting input terminal. Compare the output Vt of the detection smoothing circuit 23 inputted to the terminal, and if Vs<Vt, output a "H" level signal from the output terminal, and if Vs≧Vt
At this time, an "L" level signal is output.

Note that the reference voltage VS input to the comparator CP is such that when the person is not seated on the toilet seat 1, the output voltage from the detection smoothing circuit 23 is lower than a certain level, and when the person is seated, the voltage is higher than the certain level. Since it is output, it is set at a value that is at an intermediate level between these two voltages.

The water discharging command circuit 26 is constructed by inserting and connecting a resistor R6 and a "cleaning" switch S in series between a constant voltage power supply Vcc and one input terminal of an AND element 34 of a switch operation circuit 27, which will be described later. When the switch S1 is turned on, an "H" signal is sent to the AND element 34 from its output terminal.

The aforementioned switch operation circuit 27 connects the output end of the comparator circuit 25 to one input end of the AND element 34 , connects the output end of the water discharge command circuit 26 to the other input end, and connects the output end of the AND element 34 to the output end of the water discharging command circuit 26 . The terminal is connected to the heath of the emitter-grounded transistor Q through the resistor R1, and the resistor R7 is connected to the ground between the resistor R6 and the transistor Q, and between the collector of the transistor Q and the constant voltage power supply Vcc. is constructed by inserting a relay Y in series, and connecting a diode D4 between the terminals of the relay Y, so that the AND element 34
When an "H" level signal is output from the output terminal of the transistor Q, the transistor Q is turned on and the relay Y is energized.

Next, the operation will be explained.

(1) When the user is not seated on the toilet seat 1 When the user is not seated on the toilet seat 1, the capacitance between electrodes A and 8 is very small, and there is a choke in the energizing circuit of the toilet seat heater 30. The oscillation circuit 2 due to the presence of the coil 31
Since the oscillation circuit 21 has a high impedance with respect to the constant-cycle high-frequency signal output from the oscillation circuit 21, the output from the oscillation circuit 21 hardly flows to the energization circuit of the heater 30. However, since the choke coil 31 has a low impedance with respect to the commercial power supply 18, it is possible to receive the current from the power supply 18 without any problem and keep the toilet seat 1 at an appropriate temperature. At this time, the energization circuit of the toilet seat heater 30 (the strength, the reference constant voltage setting circuit 24, the detection smoothing circuit 2
A high frequency transformer 29 is inserted between the third and other weak electric circuits, and this high frequency transformer 29 is connected to the toilet seat heater 30.
It serves as an insulator between the current-carrying circuit and the low-current circuit, and protects the low-current circuit from the commercial power supply 18. Since a human body is not seated on the toilet seat l between the electrodes A and B of the resonant circuit 22, the resonant frequency determined by the capacitance C between the electrodes A and B and the inductance L of the resonant coil 32 and the oscillation circuit 21 Since the oscillation frequencies of the high-frequency signals output from the two do not match, almost no resonant current (AC output) flows through the resonant circuit 22. Therefore, since the output Vt from the detection smoothing circuit 23 is small and the output Vs from the reference voltage setting circuit 24 is larger, the output from the comparison circuit 25 is lower than its input because Vs>Vt. A level signal is output (see outputs 22 to 25 in FIG. 6). In this state, even if the "cleaning" switch S1 of the water discharging command circuit 26 is turned on, only an "L" level signal is output from the output terminal of the AND element 34 of the switch operation circuit 27, so the solenoid valve 5 is not opened. First, the cleaning water heated to an appropriate temperature is not ejected from the nozzle 7 (see output 85 in FIG. 6).

(2) When the user P sits on the toilet seat 1, as shown in Figure 3, the user P or the user sits on the toilet seat 1.
When the person is seated, the capacitance C between the electrodes AB in the resonant circuit 22 suddenly increases due to the capacitance Cm of the human body.
If the resonant frequency determined by the capacitance C between the electrodes A and B and the inductance L of the resonant coil 32 matches the oscillation frequency of the high-frequency signal output from the oscillation circuit 2j, or is extremely close to the oscillation frequency, the resonant circuit A large resonant current (AC output) flows through 22, increases the voltage across the resonant coil 32, and outputs it to the detection smoothing circuit 23 (see output 22 in FIG. 6). The output is half-wave rectified by a detection diode D, and the CR of a resistor R3 and a capacitor C2 is
It is smoothed with a time constant and output to the comparison circuit 25. The output voltage Vt from the detection smoothing circuit 23 is the reference voltage V of the reference voltage setting circuit 24, which is constantly input to the comparator CP.
s, and if there is a relationship of Vs<Vt, the comparison circuit 25
An "H" level signal is output from the output terminal of the circuit.

When the comparison circuit 25 outputs an "H" level signal, it is detected that a human body is seated on the toilet seat 1 (see outputs 23 to 25 in FIG. 6).

After the seating is detected as described above, when the user P finishes urinating and turns on the "cleaning" switch S1 of the water spouting command circuit 26, an "H" level signal is output from the water spouting command circuit 26 and the switch is operated. It is input to the AND element 34 of the circuit 27 . This AND element 34 already has a comparison circuit 25
Since the "H" level signal is input as described above from the AND element 34, a "H" level signal is output from the output terminal of the AND element 34 and turns on the transistor Q (S+ in FIG. 6).
, 34). When the transistor Q is turned on, a current flows between the constant voltage power supply Vcc, the relay Y, the collector/emitter of the transistor Q, and the ground, which excites the relay Y and closes its normally closed contact Ya. Therefore, the solenoid valve 5 is energized by electricity from the commercial power supply 18 and opens.
The cleaning water flowing into the heating device 6 is heated to an appropriate temperature by controlling the energization of the heater 10 based on a command signal from the control device 11, and is discharged from the nozzle 7 to hygienically clean the private parts of the user P. . To stop cleaning, turn on the cleaning j switch S again to open the water discharge command circuit 26, turn off the transistor Q, and turn off the relay Y.
The solenoid valve 5 is deenergized and its normally open contact Ya is opened.
The electric current is cut off, the solenoid valve 5 is closed, and the discharge of washing water heated to an appropriate temperature is stopped (see 5 in Fig. 6).

Furthermore, if the user P leaves the toilet seat 1 after finishing using the toilet, or if the user carelessly stands up from the toilet seat 1 and accidentally turns on the "cleaning" switch S1, the electrode A,
Since the human body is far from the toilet seat 1, the capacitance C between B is smaller than when the person is seated. Therefore, the electrodes A, B
Since the resonant frequency determined by the capacitance C between them and the inductance L of the resonant coil 32 and the oscillation frequency output from the oscillation circuit 21 are largely different from each other and do not match, almost no resonant current flows through the resonant circuit 22. Therefore, when the "washing" switch S is turned on, the water discharging command circuit 26 outputs "
Even if a signal of H level is output, only a signal of "L level" is output from the output terminal of the comparator circuit 25, so transistor Q is not turned on, relay Y is kept in a non-excited state, and solenoid valve 5 is opened. Therefore, there is no possibility that cleansing water at an appropriate temperature will be ejected from the nozzle 7.This may occur, for example, when cleaning the toilet bowl 2 or when placing a heavy object such as a cleaning tool on the toilet seat 1. The same applies even if the F cleaning J switch S of the water discharging command circuit 26 is turned on by mistake as described above.

〔Effect of the invention〕

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

(1) The present invention uses the heater for keeping the toilet seat warm as one electrode in the resonant circuit, and the other electrode uses the earth (the floor of the toilet), so the static generated when sitting on the toilet seat is eliminated. This is convenient because there is no need to provide special electrodes for detecting changes in capacitance.

(2) The present invention also provides a configuration in which the resonant circuit is provided with a high frequency transformer, the primary side of which is connected to an oscillation circuit and a resonant coil, and the secondary side is connected to a toilet seat heater and a choke coil. Therefore, when sitting on the toilet seat, when the capacitance between the electrodes set between the toilet seat heater and the ground increases rapidly, resonance determined by the capacitance between the electrodes and the inductance of the resonant coil occurs. Since the frequency is set to almost match the oscillation frequency from the oscillation circuit, seating detection can be easily performed by a large resonant current flowing through the resonant circuit, and this resonant current is converted into DC by the detection smoothing circuit. The device is configured to operate the solenoid valve control device by half-wave rectifying the signal and outputting it as an “H” level signal from the comparator circuit, thereby spouting hot water for private parts washing, so that the user does not have to sit on the toilet seat. Unless you do this, there is no way that cleaning water will come out even if you turn on the switch labeled "Washing". Therefore, it is possible to reliably solve the problem of getting clothes or the inside of the toilet wet due to erroneous operation of the switch.

(3) Furthermore, since the present invention uses a high frequency transformer in the resonant circuit, the circuit connected to the secondary side thereof, that is,
The amount of change in the impedance of the current-carrying circuit of the toilet seat heater is
Because it is proportional to the square of the turns ratio of the primary and secondary coils of the transformer, it is possible to effectively extract it to the primary side, and as a result, when a human body sits on the toilet seat, static electricity between the electrodes is reduced. Since the capacity can be reliably increased, the sensitivity of seating detection can be significantly improved, and seating detection can be performed reliably. Furthermore, since the energizing circuit (high-current section) of the toilet seat heater and the electric circuit (low-current section) constituting the solenoid valve control device are connected using a high-frequency transformer, the high-current section and the low-current section are connected using a high-frequency transformer. As a result, the insulation distance of the weakly-current parts can be maintained sufficiently, and the insulation strength of the electromagnetic valve control device can be increased.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of a toilet bowl with a sanitary cleaning device attached, Fig. 2 is a schematic plan view thereof, Fig. 3 is a perspective view showing how the sanitary washing device is used, and Fig. 4 is a cross-sectional plan view of the toilet seat. , FIG. 5 is an electrical circuit diagram of the erroneous operation prevention device of the present invention provided in a sanitary washing device, FIG. 6 is a time chart diagram, and FIG. 7 is an electrical circuit diagram used in a conventional sanitary washing device. Figure 8 is an electrical circuit diagram of a conventional solenoid valve control device.・Toilet seat 20・ ・Oscillation circuit 2 ・Detection smoothing circuit/comparison circuit 2 ・Heater 31 Solenoid valve control device 2 ・Resonance circuit 24 Reference voltage setting circuit 9 ・High frequency transformer choke coil 32 ・Resonance coil 32 ・Resonance coil A, B. Electrode

Claims (1)

[Claims] The secondary side of a high-frequency transformer and a choke coil are connected in series with the commercial power supply to the energizing circuit of the toilet seat heater placed on the inner surface of the toilet seat, and the primary side of the high-frequency transformer is connected to one side. A resonant coil is connected to the output end of the oscillation circuit and the other end is connected to the heater side as one electrode and the ground side as the other electrode. a resonant circuit that outputs alternating current when the alternating current is output, a detection smoothing circuit that half-wave rectifies and smoothes the alternating current output, and a comparison circuit that outputs a predetermined signal when the output voltage of the detection smoothing circuit exceeds a reference voltage. It consists of
A device for preventing erroneous operation of a sanitary washing device, characterized in that a solenoid valve for discharging washing water is controlled to be openable when a predetermined signal is output from the comparison circuit.