JP2003082743A - Toilet bowl device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet bowl device capable of being easily installed, without adding indoor wiring, in a toilet room in which an electric water heater is installed to instantaneously heat city water and deliver hot water. SOLUTION: This toilet bowl device comprises a hot water washing mechanism for heating washing water flowing into a hot water storage tank by a hot water heater and ejecting the hot water to the private parts of the human body seated on a toilet seat. When a seating detection means for detecting the presence or absence of a user on a toilet seat detects that the user leaves the toilet seat, the amount of electricity transmitted to the hot water heater is controllably reduced for a specified time during which the user uses the other equipment installed in the toilet room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet device having a hot water washing mechanism for heating the wash water flowing into a hot water storage tank with a hot water heater and discharging the water to a human body part sitting on a toilet seat.

[0002]

2. Description of the Related Art In recent years, a toilet room of a general household is provided with a toilet device that can wash human body parts with warm water after defecation and an electric water heater that can wash palms and fingertips with warm water. It has become possible to wash hands with warm water after cleaning the local area, which has improved comfort in the toilet room. The toilet device stores a hot water heater (for example, a sheath heater) in a large-capacity hot water storage tank that can store approximately 1000 cc of wash water, and heats the hot water heater with an electric power of around 500 W to preset the wash water in the hot water storage tank. After heating to a temperature (a temperature determined according to the user's preference or a temperature determined in advance by the equipment considering the reduction of standby power), a hot water device of a hot water storage heating system and a warming to a set temperature A warm water washing mechanism consisting of a water discharge nozzle that discharges the collected wash water to the human body part is installed inside the housing and installed on the top of the toilet bowl, or by storing it in a part of the toilet bowl After that, hot water can be discharged locally. There is also a toilet device equipped with a toilet cleaning mechanism for cleaning the toilet in response to a toilet cleaning start signal transmitted from an operation panel or a remote controller installed in the toilet device.

Hand washing in the toilet after defecation is lightly rinsing the dirt on the palm and fingertips rather than carefully washing off the dirt with soap, and the time required for hand washing is about 10 seconds. In addition, since a toilet is rarely used in a general household, a hot water heater (hereinafter, referred to as a hot water storage tank to distinguish from a hot water storage tank of a human body local cleaning device) of about 2 liters is used for a hot water heater (hereinafter, human body local part). In order to distinguish it from the hot water heater of the cleaning device, it will be referred to as a heating means), and the electric water heater that heats the tap water in the hot water tank to the set temperature with electric power of about 500 W, and then keeps it warm Alternatively, by installing it on the surrounding wall surface and connecting it to the faucet of the handwasher, hot water can be discharged from the faucet for hand washing.

[0004]

Generally, the electricity usage capacity of the toilet space in a general household is 1500 W (AC10 AC10) according to the power specifications of lighting fixtures and toilet devices used in the toilet.
0V · 15A), the user takes an action pattern of performing local washing after defecation, then leaving the toilet seat, washing the toilet bowl, and then washing the hands. Therefore, the toilet device (power: 500
In a toilet equipped with (about W) and an electric water heater (electric power: about 500 W), even if the hot water heater and the heating means are energized at the same time, the electricity usage capacity is not exceeded, so there is no particular problem. However, due to recent toilet conditions (toilet space in general households is small), it is desired to improve the storability that allows effective use of wall surfaces such as toilet paper and detergents, and the cleanability that makes cleaning in a comfortable posture in a short time. . Therefore, if the electric water heater having a large housing shape is installed on the lower wall of the hand washing device or on the peripheral wall surface, the storage space is reduced, and the cleanability around the electric water heater is poor and the hygiene is deteriorated. In addition, it is not preferable to keep the hot water in the hot water tank for a long time in consideration of economical efficiency and environmental friendliness even though the frequency of use is low. Therefore, instead of the electric water heater, it can be made compact without having a large-capacity hot water storage tank, and by using an electric water heater that can instantly heat the tap water to the set temperature, the storability and cleanability are improved. be able to. As a heating means of an electric water heater, a cylindrical heater (for example, a ceramic heater in which a thin film resistor is formed on a cylindrical ceramic base material, a thin film resistor is formed on a cylindrical metal base material via an insulating layer). It is possible to pass water only to the inside of the cylindrical heater and heat it by using the metal heater), which does not require a hot water storage tank and is more compact.
The weight can be reduced, and hot water can be discharged in a short time after the start of water discharge. However, since the electric water heater has a limited amount of water that can be instantly heated, if an attempt is made to secure a water temperature / water amount that satisfies hand washing, instantaneous power consumption during hand washing will increase. For example, tap water heated at 15 ° C for 12
When it is attempted to discharge water at 00 cc / min, the power consumption of the heating means is about 1300 W. However, electric water heater (power: around 1300W) and toilet device (power: 50)
When used in combination with (about 0 W), when hot water is used for local washing and the temperature of the wash water in the hot water storage tank decreases, the hot water heater is immediately energized. It takes time to heat the water temperature in the hot water storage tank to the set temperature because the power consumption of the hot water heater is small. For example, if the temperature of the wash water stored in the hot water storage tank of 1 liter is increased by 20 ° C, If the power consumption of the hot water heater is 500 W, it takes about 3 minutes, and if the user sits down and wash his hands with warm water during that time, the heating means of the electric water heater is also energized.
The total power consumption exceeds 1500 W, which is the capacity used for electricity, the power breaker is activated, the toilet lighting is turned off, and hot water discharge from the handwasher is stopped.
Therefore, by providing the indoor wiring of the toilet device separately from the indoor wiring of the electric water heater, it is possible to prevent the electricity usage capacity from being exceeded, but it is necessary to install additional indoor wiring and install the toilet device easily. I can't.

The present invention has been made in order to solve the above-mentioned problems, and it is easy to add indoor wiring to a toilet room provided with an electric water heater that instantly heats tap water and discharges hot water. It is an object to provide a toilet device that can be installed.

[0006]

[Means for Solving the Problems and Actions and Effects] In order to solve the above problems, the invention according to claim 1 heats the wash water flowing into the hot water storage tank with a warm water heater to reach the human body part seated on the toilet seat. In a toilet device equipped with a warm water washing mechanism for discharging water, when the user detects that the user has left the toilet seat by the seating detection means that detects the presence or absence of the user on the toilet seat, the other user installed in the toilet room It is a toilet device comprising a hot water heater energization control circuit for controlling a decrease in the amount of electricity energized to the hot water heater for a predetermined period during which the device is used. The decrease control mentioned here is a control in which the amount of energization required to reach the set temperature in the shortest time is reduced. Further, the toilet device refers to a device in which the warm water washing mechanism is housed inside the housing and installed on the upper part of the toilet bowl and detachable, or a device which is housed in a part of the toilet bowl and integrated. By providing the toilet device of the present invention in a toilet room in which an electric water heater is installed, when the electric water heater is used for hand washing, the amount of electricity supplied to the hot water heater housed in the toilet device is separated from the user. It is possible to prevent the heating means and the hot water heater from being energized at the same time by controlling the decrease for a certain period after detecting the occurrence of electricity, so that the trouble due to the excess of the electricity usage capacity can be prevented and the user can comfortably use the toilet. You can Further, the toilet device of the present invention can be easily installed in a toilet room in which an electric water heater is installed, without requiring additional indoor wiring. As the seating detection means, a seating sensor is attached to the toilet seat to detect the presence or absence of the user's seating according to the capacitance. A strain sensor is attached to the toilet seat to detect the presence or absence of the user's seating according to the amount of strain (resistance value). A sensor for detecting the opening / closing of the toilet lid, which detects whether or not the user is seated according to the distance from the distance measuring sensor attached to a part of the human body cleaning device, is part of the human body cleaning device. For example, it is possible to detect whether or not the user is seated according to the open / closed state of the attached toilet lid.

According to a second aspect of the present invention, in the toilet device provided with a toilet cleaning mechanism for cleaning a toilet in response to a toilet cleaning start signal, the user's sitting position and the toilet cleaning start signal are synchronized. 2. The toilet device according to claim 1, further comprising a hot water heater energization control circuit for controlling the amount of energization to the hot water heater to be reduced for a predetermined period in which the user uses another device installed in the toilet room. Is. The time from when the user leaves the seat until the end of hand washing varies depending on the user. Therefore, it is necessary to efficiently control the energization amount to the hot water heater in consideration of the time required to raise the temperature of the wash water in the hot water storage tank to the set temperature for the next user, and the toilet bowl with the toilet flushing mechanism is attached. In the apparatus, it is desirable to start the reduction control of the energization amount of the hot water heater from the time when the end of the defecation operation of the user is detected by the toilet flush start signal. However, since some users have a habit of repeating local cleaning and toilet cleaning during defecation, it is desirable not to control the reduction of the amount of electricity to the hot water heater even if the toilet cleaning is performed while sitting.

The invention according to claim 3 is the toilet device according to any one of claims 1 and 2, characterized in that the energization to the hot water heater is cut off during the period of the reduction control.
By cutting off the power supply to the hot water heater housed in the toilet device, the power consumption of the electric water heater can be maximized within the range of the electric capacity used. When heating water instantly, the amount of water that can be heated by the electric power input to the heating means
Although the water temperature is limited, considering the power consumption of the lighting fixture and the toilet device, it is possible to supply about 1300 W of power to the heating means of the electric water heater. It is said that people do not feel cold when the water temperature exceeds 20 ° C, but if the power consumption of the heating means is 1300W, and the initial water temperature (water temperature of tap water before being heated by the heating means) is 5 ° C. Water temperature 1
The temperature can be increased by 5 ° C., and warm water at 20 ° C. can be spouted at 1.2 liter / min from the faucet provided in the handwasher. In this way, by turning off the power supply to the hot water heater of the toilet device and reducing the power consumption to zero, it is possible to supply a sufficient amount of hot water that the user can comfortably wash by hand.

According to a fourth aspect of the present invention, it is determined that the user's sitting position related to a part of the defecation operation is a seated state, and the amount of electricity to the hot water heater is not controlled to decrease. 3. The toilet device according to any one of 3 above. The separation, which is related to a part of the bowel movement, is a movement that slightly lifts the waist, which is about several seconds in terms of time, and a maximum of 5
Refers to a sub-second separation. The user may temporarily leave the seat during defecation, but if it is determined that defecation has ended at this point and the energization amount of the hot water heater is reduced and controlled, the user will see an appropriate temperature when performing local cleaning again. It may not be possible to spout the wash water of the above. Therefore, it is possible to prevent the separation of seats related to a part of the defecation operation by determining that the seat is in a seated state and not reducing the amount of electricity supplied to the hot water heater.

The invention according to claim 5 is the toilet device according to any one of claims 1 to 4, wherein the period of the reduction control is set to be 10 seconds or more and 60 seconds or less. Normal,
The user has an action pattern of performing local washing after defecation, then leaving the toilet seat, washing the toilet bowl, and then washing the hands.
The time required for hand washing in the toilet room is about 10 seconds. Therefore, the period of the reduction control is preferably 10 seconds or more after the user has left the seat. Also, depending on the user, a series of operations may be slow from the time when the user sits down until the hand is washed, but on the other hand, it is necessary to raise the temperature of the wash water in the hot water storage tank to the set temperature for the next user. is there. Therefore, it is preferable that the period of the reduction control be 60 seconds or less after the user leaves the seat.

According to a sixth aspect of the present invention, the reduction control is canceled when the seating detection means detects that the user is sitting on the toilet seat during the reduction control period. Or the toilet device according to item 1.
For example, when the reduction control period is always set to 60 seconds and the energization amount of the hot water heater is reduced and controlled, the user who has left the seat defecates again, or the user leaves the toilet room immediately after leaving the seat and then When the user sits down during the reduction control period because the user has a bowel movement, the amount of electricity supplied to the hot water heater is lower than usual, so the wash water in the hot water storage tank may not rise to an appropriate temperature. Therefore, if seating is detected during the reduction control period, it is judged that hand washing with warm water has ended and the reduction control is canceled, so that the hot water heater is efficiently energized and the wash water at the set temperature is delivered to the user's local area. Can spit water.

The invention according to claim 7 is characterized in that when the human body detecting means for detecting the presence or absence of a user in the toilet room detects that the user leaves the toilet room, the reduction control is released. Any one of items 1 to 6
It is the toilet device according to the item. Although the time required for the user to leave the toilet seat and finish the hand washing varies depending on the user, it can be determined that the hand washing is finished when the user leaves the toilet room. Therefore, by providing the toilet device of the present invention, by detecting that the user is leaving the toilet room and canceling the reduction control, the hot water heater is efficiently energized to clean the inside of the hot water storage tank in preparation for the next user. The water can be heated to the set temperature. Further, the reduction control period may be set to 60 seconds in the initial setting, and learning control may be performed according to the signal from the human body detection means to set the optimum reduction control period. The learning control here means, for example, that the number of users on the previous day is five, and the time until each user leaves and leaves the toilet room is 30 seconds for the first person and 40 seconds for the second person.
Assuming that the third person is 35 seconds, the fourth person is 30 seconds, and the fifth person is 40 seconds, the setting is changed on the next day with the maximum control time of 40 seconds on the previous day as the decrease control period. As a human body detection means, an infrared sensor or a distance measuring sensor is provided in the toilet device to detect that the user leaves the toilet room, and an optical sensor to detect the illuminance of the toilet room is provided in the toilet device to detect changes in the illuminance of the toilet room. For example, it is possible to detect that the user leaves the toilet room.

According to an eighth aspect of the present invention, the distance recognition means for recognizing the distance from the toilet device to the user is used to detect the user's leaving the seat and leaving the toilet room.
The toilet device according to any one of claims 1 to 7, wherein an amount of electricity supplied to the hot water heater is controlled. For example, as a distance recognizing means, a distance-measuring sensor capable of recognizing the distance from the toilet device to the user is arranged in front of the toilet device (toilet bowl surface side), and by recognizing the distance from the toilet device to the user, It is possible to easily detect whether the user is sitting or leaving, or whether there is a user in the toilet room. A sensor for seating detection that detects only whether or not the user is seated,
By providing each of the toilet device with a sensor for detecting a human body that detects only the presence or absence of a user in the toilet room, a distance recognizing means capable of recognizing the distance from the device to the user (for example,
By using a distance measurement sensor and a microwave sensor, sharing is possible, the device can be downsized, and productivity is improved.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a toilet device according to the present invention will be described below in detail with reference to the drawings. (First Embodiment) FIG. 1 shows a flow chart of the toilet device of the present invention, FIG. 2 shows the same timing chart, and FIG. 3 shows the hot water heater energization control circuit. The hot water heater energization control circuit shown in FIG. 3 includes a microcomputer 1 (hereinafter, CPU 1).
Photocoupler 1 (hereinafter PC
1) ON / OFF control of the primary side circuit section, and a signal from the PC1 to receive a triac 1 (hereinafter referred to as Triac).
1) is a driving circuit of the SSR system that is configured by a secondary side circuit section that drives the hot water heater to supply AC100V. Transistor 1 connected to the primary side circuit section (hereinafter,
Tr1) is a water temperature setting unit (for example, a push switch or a volume installed on a remote control for operating the toilet device or a remote controller for remotely operating the toilet device), a water temperature detecting unit (for example, disposed in a running water passage after the hot water heater). In response to the signal from the hot water thermistor), the signal is output from the port 1 of the CPU 1 at the time of 5V output, ON, 0
It turns off when V is output. Transistor 2 (hereinafter Tr
2) is a signal from a seating detection means (for example, an infrared sensor, a capacitance sensor) for detecting the user's leaving the seat, and a human body detection means (for example, an infrared sensor, an optical sensor) for detecting the exit from the toilet room. In response, CPU1
According to the signal output from the port 2 of the above, it is turned on when outputting 5V and turned off when outputting 0V. When Tr1 and Tr2 are turned on at the same time, AC100V is supplied to the hot water heater,
When one or both of Tr1 and Tr2 are turned off, the hot water heater is de-energized. When the user sits on the toilet seat, the seating detection means outputs 5V as a seating signal,
When the user leaves the toilet seat, 0V is input to the CPU 1 as a departure signal, and the human body detection unit inputs 5V to the CPU 1 as an entry signal when the user enters the toilet room and 0V as an exit signal when the user leaves the toilet room. CPU1
When a separation signal is input to, Tr2 is set to a predetermined O
A signal is output from port 2 to repeat the switching operation for N hours and OFF time to reduce the energization amount to the hot water heater, or 0V is output from port 2 to turn off Tr2 for a certain period to energize the hot water heater. Shut off. When the exit signal is input to the CPU 1, the ports 2 to 5
V is output and Tr2 is constantly turned on to perform normal control (control is performed with the amount of electricity required to reach the set temperature in the shortest time)
Return to. In the present embodiment, an SSR type hot water heater energization control circuit driven by receiving a signal from a microcomputer is used for explanation. However, instead of the microcomputer, an integrated circuit or a semiconductor element according to the SSR type hot water heater energization control circuit is combined and used. To reduce the amount of electricity to the hot water heater directly by a signal from the detection means without using a microcomputer to cut off the amount of electricity to the hot water heater. Morphology is possible.

First, the toilet device energizes the wash water previously stored in the hot water storage tank to the hot water heater (for example, the sheath heater or the ceramic heater) to heat it to the set temperature. (Tr1: ON, Tr2: ON) At this time, the hot water heater is heated by the normal control, and when the temperature of the wash water in the hot water storage tank reaches the set temperature, the user enters the toilet room and sits down on the toilet seat. Stand by until cleaning. (Tr1: OFF, Tr2: ON)
Then, the user enters the toilet, sits on the toilet seat, and is stored in the hot water storage tank when the user operates a local cleaning start means (not shown) (for example, a push switch or volume installed on the operation panel or remote control). The wash water warmed to an appropriate temperature is discharged to the human body part. Thereafter, the user operates an unillustrated local cleaning termination means (for example, a push switch or a volume installed on the operation panel or the remote controller) to stop the discharge of cleaning water and terminate the local cleaning. The washing water inside the hot water storage tank becomes lower than the set temperature according to the local washing time, but the water temperature inside the hot water storage tank begins to drop below the set temperature. In order to raise the washing water inside the hot water storage tank to the set temperature, the warm water heater is heated by the normal control while the user is seated). (Tr
(1: ON, Tr2: ON) The user may temporarily leave the toilet seat during defecation, but if it is determined that defecation has ended at this point and the energization amount of the hot water heater is reduced, Since the user may not be able to spout the appropriate temperature of wash water to the local area when the local area cleaning is performed again, the user may move away from the seat (for example, t1
This can be prevented by determining that the seated state has not been applied and not reducing the amount of electricity supplied to the hot water heater. When the user leaves the toilet seat and the seating detection signal is input from the seating detection means to the CPU 1 for a certain period (for example, when the period of t2 is 5 seconds or more, it is determined that the user is sitting away), the defecation ends. It is determined that the hot water heater is energized and the energization to the hot water heater is controlled to be reduced. During the decrease control period (t3), the temperature of the wash water inside the hot water storage tank rises by constantly turning off Tr2 to cut off the power supply to the hot water heater and reduce the power consumption to zero (Tr1: ON, Tr2: OFF). However, the user can spout out a sufficient amount of warm water so that the user does not have to wash it by hand. During the reduction control period when the power supply to the hot water heater is cut off, the user can wash the hands with tap water of a suitable temperature heated by the electric water heater and leave the toilet room. When the user exits the toilet room and the exit signal is input to the CPU 1 from the human body detection means, it is determined that the user's hand washing is completed, the reduction control for the hot water heater is canceled, and the normal control is restored. . (Tr1: ON, T
r2: ON)

As described above, the toilet device of the present invention is provided in the toilet room in which the electric water heater is installed, and the amount of electricity to the hot water heater housed in the toilet device is detected from the toilet room by detecting the user's separation. By controlling the period until leaving the room,
When the electric water heater is used for hand washing, the heating means and the hot water heater are not energized at the same time, so that it is possible to prevent problems caused by exceeding the electricity usage capacity. Therefore, after defecation, the user can wash his hands with a sufficient amount of water and tap water at an appropriate temperature, and can comfortably use the toilet. In addition, depending on the user, the time it takes to move from the toilet seat to the end of hand washing is different, but it is possible to cancel the reduction control by detecting the presence of a user in the toilet room and judging that hand washing is completed. In preparation for the next user, the hot water heater can be efficiently energized to heat the wash water inside the hot water storage tank to the set temperature. Further, the toilet device of the present invention can be easily installed in a toilet room in which an electric water heater is installed, without the need for additional indoor wiring.

In the toilet room shown in FIG. 4, an electric water heater that heats tap water to a set temperature by accommodating a ceramic heater having a power consumption of about 1300 W in a hot water storage tank having a small capacity (the ceramic heater is submerged in water) 3, and a toilet bowl device 1 of the present invention in which a warm water washing mechanism is housed inside the casing and installed on the top of the toilet bowl 3 and which is detachable (a sheath heater with power consumption of about 500 W is housed in a hot water storage tank of 1 liter capacity). Is installed to heat and keep the wash water warm to the set temperature. Therefore, since the ceramic heater and the sheath heater are not energized at the same time, the user needs to supply a sufficient amount from the electric water heater 3 to the hand washing device 4 after leaving the toilet seat 6.
You can wash your hands with tap water at an appropriate temperature. Further, in front of the casing of the toilet device 1 (on the side of the bowl of the toilet bowl 3), the toilet device 1
Distance recognizing means 5 (for example, a distance measuring sensor or a microwave sensor) is arranged which can detect the distance from the housing to the user and detect whether the user is seated or not and is leaving the toilet room. For example, the distance from the toilet device 1 to the user is L1 (30 to 30 in consideration of the size of the bowl surface of the toilet bowl).
50 cm), the user sits on the toilet seat 6, L2 (5
0 to 100 cm), the user moves away from the toilet seat 6, L3
When it is (100 cm or more), it is possible to judge that the user has left the toilet room and efficiently control the energization of the hot water heater. As described above, by disposing the distance recognition knowing means in the human body local cleaning device, the seating detecting means and the human body detecting means can be shared, the device can be downsized, and the productivity is improved.

(Second Embodiment) FIG. 5 is a flow chart of the toilet device of the present invention, FIG. 6 is the same as the timing chart, and FIG.
Similarly, the hot water heater energization control circuit is shown. The hot water heater energization control circuit shown in FIG. 7 receives the DC signal from the microcomputer 2 (hereinafter, CPU 2) and receives the photo coupler 2
(Hereinafter, referred to as PC2) ON / OFF control primary side circuit section, and a signal from PC2 is received to triac 2 (hereinafter, referred to as
It is a drive circuit of the SSR system composed of a secondary side circuit section for driving Triac 2) and energizing the hot water heater with AC100V. Transistor 3 connected to the primary side circuit
(Hereinafter, Tr3) receives signals from the water temperature setting means and the water temperature detecting means, and turns on at the time of 5V output and turns off at the time of 0V output according to the signal output from the port 3 of the CPU2. The toilet device is provided with a toilet cleaning mechanism for cleaning the toilet by a simple operation in addition to the warm water cleaning mechanism, and the transistor 4 (hereinafter, Tr4) is a seating detection means for detecting the user's separation and a signal from the toilet cleaning means. In response to the signal output from the port 42 of the CPU 2, O is output when 5V is output.
It turns off at N, 0 V output (during reduction control). The seating detection means provides 5V as a seating signal when the user sits on the toilet seat.
When 0 is released from the toilet seat, 0 V is output as a departure signal to CPU2
In the toilet cleaning means, the user operates a toilet cleaning start means (not shown) (for example, a push switch installed on an operation panel arranged on the human body local cleaning device or a remote controller for remotely operating the human body local cleaning device). By doing
A 5 V pulse wave is input to the CPU 2 as a toilet cleaning start signal. When Tr3 and Tr4 are turned on at the same time, AC 100 V is supplied to the hot water heater, and when one or both of Tr3 and Tr4 are turned off, the supply of electric power to the hot water heater is cut off. When the toilet wash start signal is input to the CPU 2 and the seating detection signal is also input from the seating detection means, the signal from the port 4 causes the Tr 4 to repeat the switching operation at predetermined ON time and OFF time. It is output to reduce the energization amount to the hot water heater, or outputs 0 V from the port 4 to turn off Tr4 for a certain period to shut off the energization to the hot water heater. Then, when a predetermined time has passed since the reduction control was started, for example, 60 seconds when the user's hand washing was completed, 5V is automatically output from the port 4 of the CPU 2 and the Tr 4 is constantly turned on to perform normal control. Return.

First, in the toilet device, the wash water previously stored in the hot water storage tank is energized by a hot water heater (for example, a sheath heater or a ceramic heater) to heat it to a set temperature. (Tr3: ON, Tr4: ON) At this time, the hot water heater is heated by normal control, and when the temperature of the wash water in the hot water storage tank reaches the set temperature, the user enters the toilet room and sits on the toilet seat Stand by until cleaning. (Tr3: OFF, Tr4: ON) Then, when the user enters the toilet, sits on the toilet seat, and the user operates the local cleaning start means (not shown),
The washing water stored in the hot water storage tank and warmed to an appropriate temperature is discharged to the human body part. After that, when the user operates the local cleaning ending means (not shown), the spouting of the cleaning water is stopped and the local cleaning is completed. Depending on the local cleaning time, the wash water inside the hot water storage tank becomes cooler than the set temperature, but the water temperature inside the hot water storage tank begins to drop below the set temperature. In order to raise the temperature of the wash water inside the hot water storage tank to the set temperature, the user heats the hot water heater by normal control while sitting. (T
r3: ON, Tr4: ON) Even if there is a toilet flushing operation while sitting (timing of t4), some users have the habit of repeating local flushing and toilet flushing during defecation, so the amount of electricity supplied to the hot water heater It is desirable not to perform reduction control. Then, when the user leaves the toilet seat to wash the toilet (timing t5), a sitting signal from the seating detection means and a toilet cleaning start signal from the toilet cleaning means are input to the CPU 2, and it is determined that defecation has ended The power supply to the heater is controlled to be reduced. In a toilet device equipped with a toilet flushing mechanism, it is possible to start the reduction control of the energization amount of the hot water heater from the time when the end of the defecation operation of the user is detected by the toilet flush start signal, so that the hot water heater is energized. The amount can be controlled more efficiently to raise the temperature of the wash water in the hot water storage tank to the set temperature for the next user. During the decrease control period (t6), Tr
Since 4 is always turned off to stop the energization of the hot water heater (Tr3: ON, Tr4: OFF), the temperature of the washing water inside the hot water storage tank does not rise. During the reduction control period when the power supply to the hot water heater is cut off, the user can wash the hands with tap water of a suitable temperature heated by the electric water heater and leave the toilet room. Then, when a predetermined time (t6) has elapsed since the reduction control was started, the reduction control for the hot water heater is canceled and the normal control is restored. (Tr
(3: ON, Tr4: ON) The predetermined time is usually after the user performs local washing after defecation,
There is an action pattern of moving away from the toilet seat, washing the toilet, and then washing the hands, but since the time required for hand washing in the toilet is about 10 seconds, it should be 10 seconds or more after the user leaves the toilet seat. It is preferable. Also, depending on the user, a series of operations may be slow from the time when the user leaves the toilet seat to the time when he / she washes the hands, but on the other hand, the wash water in the hot water storage tank is raised to the set temperature for the next user. Since it is necessary, it is preferably 60 seconds or less after the user leaves the toilet seat. Further, during the reduction control period, when the seating detection means detects the seating, the reduction control is released regardless of the predetermined time and the energization to the hot water heater is normally controlled. For example, the default time of the reduction control is set to 60 seconds. When setting and controlling the amount of electricity to the hot water heater to decrease, even if the user leaves the toilet room immediately after leaving the seat and the next user sits on the toilet seat for defecation, the wash water at the set temperature is locally applied to the user. You can discharge water to.

As described above, the toilet device of the present invention is provided in the toilet room in which the electric water heater is installed, and the amount of electricity to the hot water heater housed in the toilet device is detected for a predetermined time by detecting the user's leaving the seat. By controlling, when the electric water heater is used for hand washing, the heating means and the hot water heater are not energized at the same time, and it is possible to prevent a defect due to the excess of the electric usage capacity. Therefore, after defecation, the user can wash his hands with a sufficient amount of water and tap water at an appropriate temperature, and can comfortably use the toilet. Further, the toilet device of the present invention can be easily installed in a toilet room in which an electric water heater is installed, without the need for additional indoor wiring.

In the toilet device of the present invention, the energization amount of the hot water heater for heating the wash water discharged to the human body part up to the set temperature is controlled to be reduced. When a toilet device with an indoor heating function to warm the inside is installed in a toilet room equipped with an electric water heater, the same problem as with the hot water heater occurs, so the hot air heater is energized when washing by hand with hot water. It is necessary to control the amount to decrease. As other equipment installed in the toilet room, equipment with a built-in heater that consumes several hundreds of watts can be considered.In addition to the electric water heater, the air heated by the heater is fed by a fan. A hot air hand dryer that blows out can be used. Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and embodiments, and it goes without saying that the present invention can be implemented in various modes without departing from the scope of the present invention. is there.

[0022]

As described above, according to the present invention,
It is possible to provide a human body local cleaning device and a toilet device that can be easily installed in a toilet space in which an electric water heater that instantaneously heats tap water and discharges hot water is installed without adding indoor wiring.

[Brief description of drawings]

FIG. 1 is a flow chart showing a toilet device according to a first embodiment of the present invention.

FIG. 2 is a timing chart of the same.

FIG. 3 is a hot water heater energization control circuit of the same.

FIG. 4A is a top view and FIG. 4B is a side view.

FIG. 5 is a flow chart showing a toilet device according to a second embodiment of the present invention.

FIG. 6 is a timing chart of the same.

FIG. 7 is a hot water heater energization control circuit of the same.

[Explanation of symbols]

1: toilet device, 2: electric water heater, 3: toilet bowl, 4: hand-washing device, 5: distance recognition means, 6: toilet seat, 7: remote controller, 8: low tank

Claims (8)

[Claims] 1. A toilet device having a warm water cleaning mechanism for heating wash water flowing into a hot water storage tank with a warm water heater to discharge water to a human body part sitting on a toilet seat, and a seating device for detecting the presence or absence of a user on the toilet seat. When the detection means detects that the user has left the toilet seat, the hot water heater energization control circuit that controls the amount of electricity to the hot water heater to decrease during a predetermined period in which the user uses another device installed in the toilet room. A toilet device comprising: 2. In the toilet device, further comprising a toilet bowl cleaning mechanism for cleaning a toilet bowl in response to a toilet bowl start signal, the user separates the user's seat from the toilet bowl start signal so that the user is in the toilet room. 2. A hot water heater energization control circuit for controlling the amount of energization to the hot water heater to be reduced for a predetermined period of time when another device installed in the hot water heater is used.
The toilet device described. 3. The toilet device according to claim 1, wherein energization to the hot water heater is cut off during the period of the reduction control. 4. The user's separation from the seat associated with a part of the bowel movement is determined to be a seated state, and the amount of electricity to the hot water heater is not controlled to decrease.
The toilet device according to the item. 5. The toilet device according to any one of claims 1 to 4, wherein the reduction control period is set to be 10 seconds or longer and 60 seconds or shorter. 6. The toilet bowl according to claim 1, wherein the reduction control is canceled when the seating detection means detects that the user is sitting on the toilet seat during the reduction control period. apparatus. 7. The reduction control is released when the human body detecting means for detecting the presence or absence of a user in the toilet room detects that the user leaves the toilet room. The toilet device according to item 1. 8. The distance recognition means for recognizing the distance from the toilet device to the user is used to detect the user's leaving the seat and leaving the toilet room, and controlling the amount of electricity to the hot water heater. The toilet device according to any one of claims 1 to 7.