JP4074159B2 - Toilet equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a toilet apparatus, and more particularly to a toilet apparatus in which a DC power source is miniaturized in a toilet apparatus having a local hot water cleaning means.
[0002]
[Prior art]
Conventionally, a toilet apparatus provided with local hot water cleaning means, drying means, deodorizing means, and the like is known. Since the heater for heating the washing water of the local hot water cleaning means and the heater of the drying means consumes a large amount of power, a commercial power supply of AC100V is used as it is. The pump motor of the local hot water cleaning means, the motor for adjusting the flow rate, and the water stop The DC motor of DC12-24V obtained from the AC100V commercial power supply using the DC power supply circuit is used for the solenoid motor, the fan motor of the drying means and the deodorizing means. In addition to the above, devices using a DC power source include fan motors for heating means and cooling means, and opening / closing motors for electric opening / closing means for toilet lids and toilet seats.
[0003]
[Problems to be solved by the invention]
By the way, with an increase in functions required for a toilet device, a DC power supply circuit having a large power capacity is required. However, a DC power supply circuit requires an installation space and cost according to an increase in power capacity. Increases substantially proportionally, which requires a large space and a high cost. Therefore, it is required to save DC power as much as possible without hindering the functions of various means.
[0004]
In view of the above-described conventional problems, an object of the present invention is to provide a toilet apparatus that saves DC power and suppresses the space and cost of a DC power supply circuit.
[0005]
[Means for Solving the Problems]
Toilet device of the present invention is a toilet apparatus provided with a drying means local hot water washing means and the deodorizing means, the output of the fan motor of the deodorizing means and configured to be able to switched in a plurality of stages of high and low, the fan motor driving means of drying Sometimes the fan motor of the deodorizing means is switched to a low output, and by reducing the output of the deodorizing fan motor during the driving of the drying fan motor, the maximum power of the DC power supply circuit can be reduced accordingly. Even if the output of the fan motor of the deodorizing means is lowered in this way, the stool is finished when the drying fan motor is driven, and the stool is already completely immersed in water. The space and cost of the DC power supply circuit can be reduced without hindering the deodorizing function without greatly deteriorating the deodorizing effect and increasing discomfort. .
[0006]
Further, whereupon the fan motor of the deodorizing means when the pump motor drive station unit Bidet means to switch to low output, by reducing the output of the fan motor for deodorizing during driving of the pump motor, correspondingly DC power supply circuit Even if the output of the fan motor of the deodorizing means is reduced in this way, when the pump motor is driven, the stool is finished and the stool is already completely immersed in water. Therefore, the deodorizing effect is greatly hindered and uncomfortable feeling is not increased, and the space and cost of the DC power supply circuit can be suppressed without inhibiting the deodorizing function.
[0007]
Further , when the pump motor of the local hot water cleaning means is configured to perform PWM control, and the PWM frequency is increased when the pump motor is started, the PWM pulse frequency is increased when the pump motor is started. By narrowing, the maximum value of the current that rises in the meantime can be lowered, so that the upper limit value of the inrush current at the start of the motor is reduced, the maximum power of the DC power supply circuit can be reduced correspondingly, and the space and cost of the DC power supply circuit can be reduced. Can be suppressed. For example, by adopting 2 KHz as the PWM frequency during normal control and setting it to 3 KHz only for a predetermined time at the start of the pump motor, the maximum current value at the start can be reduced by 30 to 40%.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the toilet apparatus of the present invention will be described with reference to FIGS.
[0009]
As is well known, the toilet device has a main body part installed at the rear upper surface of the toilet bowl, and a toilet seat and a toilet lid are installed at the front end part of the main body part between a posture in which the toilet seat and the toilet lid are installed on the toilet bowl and an upwardly opened state. The water tank is movably mounted, a water tank is disposed at the rear of the main body, and a local hot water cleaning means is disposed at the front.
[0010]
As shown in FIG. 1, the local hot water cleaning means includes a water stop solenoid valve 1, a flow rate detection means 2, an incoming water temperature detection means (TSI) 3, a heater 4 that heats the cleaning water to a desired temperature, A temperature detection means (TSO) 5, a pump 6 for supplying cleaning water, a flow rate switching valve 7, and nozzle means 8 for jetting the cleaning water toward the local area. The pump 6 is driven by a pump motor 9 controlled by PWM drive, the flow rate switching valve 7 is driven by a valve switching motor 10, and the nozzle means 8 is configured to be able to adjust its front and rear positions by a position adjusting motor 11. ing.
[0011]
The toilet seat is provided with a seating sensor 12 for detecting that the user is seated, a toilet seat heater 13 for heating the toilet seat, and a toilet seat temperature sensor 14. In addition, the main body part sucks and sends the atmosphere to the drying heater 15 and the drying fan motor 16 for blowing hot air to the local area after washing, the deodorizer (not shown) for performing deodorization, and the deodorizer. A deodorizing fan motor 17, a heating heater 18 and a heating fan motor 19 for heating the toilet room, and a room temperature sensor 20 for detecting the room temperature are provided.
[0012]
A control unit 21 is configured to receive an operation command from the remote controller 22 and to display an operation state display on the display unit on the remote controller 22. Detection signals from the flow rate detection means 2, the incoming water temperature detection means 3, the outgoing water temperature detection means 5, the seating sensor 12, the toilet seat temperature sensor 14, and the room temperature sensor 20 are input to the control unit 21. The control unit 21 controls the AC drive control unit 23 based on these detection signals and the operation command from the remote controller 22 to control the operation of the heater 4, the toilet seat heater 13, the drying heater 15, and the heating heater 18 with an AC power source. Then, the DC drive control unit 24 is controlled so that the water stop solenoid valve 1, the pump motor 9, the valve switching motor 10, the position adjustment motor 11, the drying fan motor 16, the deodorizing fan motor 17, and the heating fan motor 19 are controlled by a DC power source. It is configured to control the operation.
[0013]
The main operation will be described. When the user is seated on the toilet seat, the seating sensor 12 detects the seat, and based on this, the deodorizing fan motor 17 starts operating and the water stop solenoid valve 1 is opened. When the toilet seat heating switch or the toilet room heating switch is turned on, the toilet seat heater 13, the heater 18 and the heating fan are based on the detection signals of the toilet seat temperature sensor 14 and the room temperature sensor 20 and their set temperatures. Operation control for the motor 19 is performed.
[0014]
Next, when the stool is finished and the washing switch of the remote controller 22 is pressed, the washing water is set in accordance with the set water temperature and the amount of jetted water and the detection signals from the flow rate detection means 2, the incoming water temperature detection means 3 and the outgoing water temperature detection means 5. Then, operation control for the heater 4, the pump motor 9, and the valve switching motor 10 is performed, and cleaning water of a desired temperature and a desired ejection amount is ejected from the nozzle means 8 toward the local portion to perform cleaning. Thereafter, pressing the stop switch ends the cleaning.
[0015]
Next, when the drying switch is pressed, operation control is performed on the drying heater 15 and the drying fan motor 16, and the operation is continued until the stop switch is pressed. Thereafter, when the user stands up from the toilet seat, it is detected by the seating sensor 12, the water stop solenoid valve 1 is closed, and after a predetermined time, the deodorizing fan motor 17 is stopped and returned to the initial state.
[0016]
Next, a configuration and operation characteristic of this embodiment will be described. The DC drive control unit 24 is configured to be able to switch the drive output of the deodorizing fan motor 17 between two levels of “high” and “low”. The pump motor 9 is configured to perform PWM drive control with a pulse with a frequency of 2 KHz, and at startup, the frequency of PWM drive control is switched to 3 KHz for a predetermined time.
[0017]
At the time of the washing operation, as shown in FIG. 2, when the seating sensor 12 is turned on, the deodorizing fan motor 17 is driven at a “high” output to exert a strong deodorizing action, and the stool is performed in this state. Next, when the stool is finished and the washing switch is turned on, the frequency of PWM drive control of the pump motor 9 is switched from 2 KHz to 3 KHz, and then the pump motor 9 is started in that state.
[0018]
Thus, by switching the PWM pulse frequency from 2 KHz to 3 KHz when the pump motor 9 is started, the inrush current that flows when the motor is started can be significantly reduced. That is, when the pulse frequency is 2 KHz, the current value rises with a large gradient as shown in FIG. 3B during the pulse width w ₁ as shown in FIG. 3A, and the maximum current value is predetermined. However, by setting the pulse frequency to 3 KHz, the pulse width w ₂ as shown in FIG. 3C is obtained, and even if the current value increases with a large gradient during that time, the maximum current value is As shown in FIG. 3D, it can be suppressed to a predetermined current value A or less. The pulse frequency is switched to 3 KHz only for a predetermined time when the pump motor 9 is started, for example, for a few seconds, and then automatically returns to 2 KHz to avoid the resonance frequency band.
[0019]
Also, prior to or simultaneously with turning on the pump motor 9, the deodorizing fan motor 17 is switched to the "low" output. Thus, even if the output of the deodorizing fan motor 17 is lowered, since the stool is already finished and the stool is immersed in the toilet water, the deodorizing action is insufficient and uncomfortable. There is nothing. Thereafter, when the stop switch is pressed and the cleaning switch is turned off, the pump motor 9 is stopped and the deodorizing fan motor 17 is returned to the “high” output.
[0020]
Next, when the drying switch is pressed, the drying fan motor 16 is turned on, the air heated by the drying heater 15 is blown toward the local portion, and the local portion is dried. At the same time, the deodorizing fan motor 17 is switched to the “low” output again. When the drying is finished and the stop switch is pressed, the drying fan motor 16 is turned off and the deodorizing fan motor 17 is returned to the “high” output. Thereafter, when the user stands up from the toilet seat, it is detected by the seating sensor 12, and after a predetermined time has elapsed, the deodorizing fan motor 17 is turned off.
[0021]
According to the present embodiment described above, by increasing the PWM frequency when the pump motor 9 is started, the PWM one pulse width is narrowed, and the maximum current value rising during that time is reduced. The upper limit value of the inrush current can be reduced, the maximum power of the DC power supply circuit can be reduced correspondingly, and the space and cost of the DC power supply circuit can be suppressed. Moreover, the resonance frequency of the pump can be kept low by lowering the PWM frequency after the pump motor 9 is started.
[0022]
In addition, the output of the deodorizing fan motor 17 can be switched between “high” and “low”, and the output of the deodorizing fan motor 17 is switched to “low” when the pump motor 9 is driven. By reducing the output of the deodorizing fan motor 17 while the pump motor 9 is being driven, the maximum output of the DC power supply circuit can be reduced correspondingly, and the space and cost of the DC power supply circuit can be reduced without impeding the deodorizing function as described above. Can be suppressed.
[0023]
Similarly, when the drying fan motor 16 is driven, the output of the deodorizing fan motor 17 is switched to “low”. Therefore, by reducing the output of the deodorizing fan motor 17 while the drying fan motor 16 is driven. Accordingly, the maximum output of the DC power supply circuit can be reduced, and the space and cost of the DC power supply circuit can be suppressed without impairing the deodorizing function as described above.
[0024]
【The invention's effect】
According to the toilet apparatus of the present invention, in the toilet apparatus provided with the local hot water cleaning means, the deodorizing means, and the drying means, the output of the fan motor of the deodorizing means can be switched to a plurality of levels of high and low, and the drying fan motor Since the output of the fan motor for deodorization is reduced during driving, the maximum power of the DC power supply circuit can be reduced by that amount. Therefore, the deodorizing effect is not significantly hindered, and the space and cost of the DC power supply circuit can be suppressed without inhibiting the deodorizing function .
[0025]
Furthermore, reducing the output of the fan motor for deodorizing during driving of the port Npumota local hot water washing unit, can reduce the maximum power of the correspondingly DC power supply circuit, also already feces completely when driving the pump motor Since it is immersed in water, the deodorizing effect is not greatly inhibited, and the space and cost of the DC power supply circuit can be suppressed without inhibiting the deodorizing function.
[0026]
Also, if the PWM frequency is increased at the start of the pump motor , the maximum value of the current that rises during that time is reduced because the width of one PWM pulse is reduced, so the upper limit of the inrush current at the start of the motor is reduced. The maximum power of the minute DC power supply circuit can be reduced, and the space and cost of the DC power supply circuit can be suppressed.
[Brief description of the drawings]
FIG. 1 is a control block diagram in an embodiment of a toilet apparatus of the present invention.
FIG. 2 is a timing chart of operation control in the same embodiment.
FIG. 3 is an explanatory diagram of a current reduction effect when the pump motor is started by varying the PWM frequency in the same embodiment.
[Explanation of symbols]
9 Pump motor 16 Drying fan motor 17 Deodorizing fan motor

Claims (3)

In a toilet device equipped with local hot water washing means, deodorizing means, and drying means, the output of the fan motor of the deodorizing means can be switched between high and low levels, and the fan motor of the deodorizing means is reduced when the drying motor is driven. Toilet device characterized by switching to output . Toilet apparatus according to claim 1, characterized in that the fan motor of the deodorizing means to switch to a low output when the pump motor drive station unit hot water cleaning means. The toilet apparatus according to claim 2, wherein the pump motor of the local hot water washing means is configured to perform PWM control, and the PWM frequency is increased when the pump motor is started .

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