JPH0229817B2 - SENJOBENKI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flushing toilet that has the function of discharging flushing water to the flushed area of a user sitting on the toilet seat and drying the flushed area of the user with warm air after cleaning. It is.

A conventional toilet bowl was constructed as shown in FIG. In other words, 1 is a toilet bowl, 2 is a toilet seat, 3 is a user sitting on the toilet seat 2, 4 is a cleaning nozzle that discharges cleaning water to clean the area to be cleaned of the user 3, and 5 is a device used after cleaning. a hot air outlet that blows hot air to dry the user's washing area; 6 is a cistern that stores water for flushing the inside of the toilet bowl 1;
Reference numeral 7 denotes a pump (not shown) that sucks water from the cistern 6, heats it to an appropriate temperature, and pumps it to the cleaning nozzle 4, a fan (not shown) that sends air to the hot air outlet 5, and the air blower. This is a storage box that houses a heater (not shown) that heats the water to an appropriate temperature.

In the conventional configuration described above, when the user turns on the switch for blowing out hot air after washing the user's part to be cleaned, the warm air hits the user's part to be cleaned after cleaning, as shown in FIG. In most conventional configurations, the temperature of the hot air cannot be varied or can be changed manually. However, since flushing toilets are used by the whole family, from children to the elderly, and are also used by people with disabilities, they are often used by people who cannot manually adjust the temperature of the hot air themselves. On the other hand, since the washing water that adheres to the user's washing area after washing is uneven, some areas dry quickly and others are wet, and as the drying process progresses, the areas that dry quickly become hot and uncomfortable. Although it had the disadvantage of becoming
As mentioned above, those who cannot adjust the temperature of the hot air have no choice but to endure it. To make matters worse, elderly people and disabled people who are forced to sit on the toilet seat for long periods of time run the risk of suffering low-temperature burns from being exposed to hot air for long periods of time.

According to the present invention, even when areas that dry quickly and areas that are wet coexist as the drying process progresses, the areas that dry quickly do not get hot, and even when exposed to hot air for a long time, low-temperature burns do not occur. The purpose is to provide a toilet bowl with a high level of comfort and safety.

In order to achieve the above object, the present invention automatically adjusts the temperature of the hot air by adding a control circuit that controls the temperature of the hot air to decrease over time after the drying means is turned on by a switch. This method eliminates the drawbacks of the conventional method by gradually lowering the air so that areas that dry quickly do not become hot, and also prevents low-temperature burns from occurring even when exposed to hot air for a long time.

An embodiment of the flushing toilet of the present invention is shown in Figs.
This will be explained according to FIG.

FIG. 2 shows a control circuit diagram of a hot air heating section in an embodiment of the present invention, in which 8 is a heater that heats the hot air, and 9 is a phase control circuit that energizes the heater 8. 10 is a power supply, 11 is a switch that turns on the drying means, 12 is a resistor, 13 is a capacitor,
14 is a trigger element, and 15 is a power control element.
Further, 16 is an output voltage variable circuit, which gradually lowers its output Vo from Vcc in conjunction with the turning on of the switch 11. 17 is a capacitor, and 18 is an operational amplifier.

FIG. 3 is a correlation diagram between hot air temperature and elapsed time in the normal drying means usage state in the above embodiment, where the vertical axis represents the warm air temperature T, and the horizontal axis represents the elapsed time t.
are shown respectively. T _S is the set temperature, T _R is the room temperature, t _p
te indicates the time when the switch 11 for energizing the drying means is turned on, and t _e indicates the time when the switch 11 is turned off. Similarly, t _n and t _o indicate the times when the switch 11 is turned on and off.

FIG. 4 is a correlation diagram between the hot air temperature and the elapsed time in the hot air usage state for a long time in the above embodiment, and t _p indicates the time point when the hot air temperature becomes equal to the room temperature _TR .

In the above configuration, when the switch 11 is turned on at time _tp , since the amount of charge in the capacitor 17 is zero, the output voltage of the operational amplifier 18
Vo is equal to Vcc, and depending on the voltage, the capacitor 13 is synchronously charged via the resistor 12, and the power control element 15 is triggered to charge the heater 8.
is energized, hot air at a set temperature T _S is blown out from the hot air outlet 5 to start drying. As time passes, the capacitor 17 is charged and the output voltage Vo of the operational amplifier 18 is gradually lowered, so that the synchronous charging speed of the capacitor 13 of the phase control circuit 9 is gradually slowed down, and the trigger of the power control element 15 is The phase is also delayed and the amount of energization of the heater 8 is gradually lowered. Therefore, as shown in FIG. 3, the temperature of the hot air gradually decreases, making areas that dry quickly feel less hot. When the switch 11 is turned off at time _te , the power supply to the heater 8 is also stopped, and the air blowing by a fan (not shown) is also stopped. Furthermore, the same characteristics are exhibited during the next use (t _n -t _o ), and this is repeated every time the drying means is used.

Next, if the drying means is energized for a long time from time _tp in FIG. 4 to continue blowing out hot air, the capacitor 17 continues to be charged and the energization amount of the heater 8 continues to decrease, until finally will reduce the biasing amount to zero.
Therefore, the temperature of the hot air becomes equal to the room temperature T _R at time t _p , eliminating the risk of low-temperature burns caused by blowing out hot air for a long time.

FIG. 5 shows a control circuit diagram of the warm air heating section in another embodiment of the flushing toilet of the present invention.
Items with the same numbers as those in the diagram indicate the same item.
Therefore, the explanation will be omitted. The difference from FIG. 2 is that a potential clip circuit 19 is added. This circuit is designed to always maintain the potential V _D and apply a limited constant energization to the heater 8, so that when the output voltage Vo of the operational amplifier 18 falls below the potential V _D , it does not go to zero. be.

Figure 6 shows a correlation diagram between hot air temperature and elapsed time when hot _air is used for a long time in the example shown in Figure 5 above. The temperature is so low that you don't feel cold even when it hits you.

In the above configuration, when exposed to hot air for a long time, the temperature of the hot air gradually decreases as in the case of the above embodiment, but due to the action of the potential clip circuit 19, the heater energization amount remains constant. is maintained, and the hot air temperature gradually approaches the temperature T _D shown in Figure 6. Therefore, a certain amount of warmth is transferred to the human body from the warm air, so there is no need to worry about catching a cold even in winter.

In addition, in the above embodiment, the application to a device in which the amount of heater energization cannot be changed manually is shown, but if it is desired to change the amount of heater energization, it can be easily achieved by replacing the resistor 12 with a variable resistor. Although an example of open-loop control has been shown as the heater energization control circuit, the present invention is also effective in the case of closed-loop control using a sensor that detects the hot air temperature. Although an example has been shown in which the air temperature is lowered, a configuration in which the air temperature is lowered after a certain period of time has passed after the switch 11 is turned on is also effective, and the hot air temperature may also be lowered in steps. It is not limited to.

As is clear from the above description, the flushing toilet of the present invention includes a toilet seat, a cleaning means for discharging flushing water to the area to be cleaned of a user using the toilet seat to clean the area to be cleaned, and a drying means for drying the user's cleaning part wetted with the washing water with hot air; a switch for turning on the drying means; and after turning on the said switch;
Since it is configured with a control circuit that controls the temperature of the hot air to decrease, even if drying progresses and there are areas that dry quickly and areas that are wet, the temperature of the hot air will be automatically adjusted. This reduces the feeling of heat in dry areas, improving comfort, and eliminates the risk of low-temperature burns even when exposed to hot air for long periods of time. It has the excellent feature of being a flushing toilet that is highly safe for the elderly and the handicapped.

[Brief explanation of drawings]

Fig. 1 is a side sectional view showing the structure of a conventional flushing toilet, Fig. 2 is a control circuit diagram of the warm air heating section of the flushing toilet according to an embodiment of the present invention, and Fig. 3 is a diagram showing the state in which the drying means is normally used. FIG. 4 is a correlation diagram between hot air temperature and elapsed time. FIG. 4 is a correlation diagram between hot air temperature and elapsed time when hot air is used for a long time. FIG. 5 is a diagram showing hot air heating of a toilet bowl in another embodiment of the present invention. FIG. 6 is a diagram showing the correlation between hot air temperature and elapsed time when hot air is used for a long time in the embodiment shown in FIG. 5. DESCRIPTION OF SYMBOLS 1...Toilet bowl, 2...Toilet seat, 3...User, 4...Cleaning nozzle, 5...Hot air outlet, 8...Heater that heats hot air, 9...Phase control circuit, 11...Switch, 15...
Power control element, 16... Output voltage variable circuit, 17...
Capacitor, 18... operational amplifier, 19... potential clip circuit.

Claims (1)

[Claims] 1. A toilet seat, a cleaning means for discharging cleaning water onto the area to be cleaned by the user using the toilet seat, and a cleaning means for cleaning the area to be cleaned by discharging the area to be cleaned by the user using the toilet seat, and a cleaning unit that blows warm air onto the area to be cleaned by the user who is wet with the cleaning water after washing. A flush toilet comprising a drying means for drying, a switch for turning on the drying means, and a control circuit for controlling the temperature of the hot air to be lowered after turning on the switch.