JPH08319654A - Electric equipment for stool - Google Patents

Abstract

PURPOSE: To prevent the reopening of energizing operation to an electric equipment for a stool so far as specified reset operation is not conducted after the range of a temperature sensor such as a thermistor exceeds a fixed range even once. CONSTITUTION: A commercial power supply can supply a heating closet seat 6, a warm water washer 7, a warm air drier 8 and a foot heating apparatus 19 with electric power through a main switch 4, and these equipments 6, 7, 8, 19 are controlled by a controller 23. When abnormality is generated in thermistors 10, 16, 17, 22, the abnormality is stored in a non-volatile memory 27, and the operation of the electrical equipments 6, 7, 8, 19 is stopped. Abnormality is stored in the memory 27 until a reset switch 29 is worked, the storage is held in the memory 27 even when the main switch 4 is tuned on-off, and the state of the operation suspension of the electrical equipments is maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water washing device for washing the buttocks of a human body with hot water, a hot air drying device for drying the buttocks with warm air, a heating toilet seat device for heating a toilet seat, an air conditioner in a toilet room, etc. Of electric appliances for toilets of. More specifically, the present invention relates to a toilet bowl electrical device including a temperature sensor such as a thermistor.
More specifically, the present invention relates to an electric appliance for a toilet provided with a safety mechanism when the temperature sensor fails.

[0002]

2. Description of the Related Art As a safety device for a toilet equipped with electric equipment such as a hot water washing device, it detects the disconnection of a thermistor for controlling the temperature of flush water, a thermistor for controlling hot air heating, and a thermistor for heating toilet seat temperature control. A safety device for turning off a heater that is energized is known (Japanese Patent Publication No. 7-911).

As shown in FIG. 5, the thermistor has a temperature characteristic in which the resistance becomes smaller as the temperature rises. The property of the thermistor is used to detect the heater temperature, and the temperature of the washing water is appropriately adjusted. Control of wash water temperature for keeping, warm air heating control for keeping warm air for drying at an appropriate temperature, heating toilet seat temperature control for keeping a toilet seat at an appropriate temperature, etc. are performed.

In the safety device disclosed in Japanese Patent Publication No. 7-911, when the thermistor is disconnected and the resistance value becomes infinite, the temperature of the heater is actually high, but the temperature of the heater is low in the controller. It was proposed in order to eliminate the situation in which it was judged that the heating was continued.

Specifically, as shown in FIG. 4, this safety device 1 is composed of a voltage comparison circuit using an operational amplifier OP, and a resistor R ₁ and a thermistor Th are connected in series to a power supply Vcc. Then, the voltage Va at the middle point is set to the operational amplifier O.
Input to the non-inverting input terminal of P, and also the resistance R ₁ and high resistance R
Are connected in series to the power source Vcc, and the voltage Vb at the midpoint is input to the inverting input terminal of the operational amplifier OP.

The resistance value of the high resistance R is the thermistor T.
A resistance value much larger than the upper limit resistance value of h in the normal operation range is used. For example, the usage environment is minus 5
If the temperature does not reach 0 ° C., the resistance value of the high resistance R is larger than the resistance value of the thermistor Th at −50 ° C.

Therefore, in the safe normal operating range, the high resistance R
Since the resistance value of is larger than the resistance value of the thermistor Th,
Since the voltage is Va <Vb, the output V of the operational amplifier OP is
Out becomes a negative voltage, and while the L signal is being output to the control unit, the control unit keeps the heater energizable and controls the heater on / off according to the detection state of the thermistor Th.

When the thermistor Th is disconnected, the resistance value of the thermistor Th becomes infinite, so that Va (= Vcc)>
The safety device 1 operates at Vb, and the operational amplifier OP outputs a positive voltage output Vout to the control unit. This Vout
When the H signal is output, the control unit turns off the heater to disable energization.

[0009]

In the safety device of Japanese Patent Publication No. 7-911, the heater is surely turned off when the thermistor is completely disconnected. However, after the thermistor is disconnected, some kind of problem occurs. When the disconnection point becomes conductive again due to the cause, the output from the thermistor may apparently fall within the normal range even if the thermistor is disconnected.

Further, even when the electric device is automatically stopped due to an abnormality in the thermistor or a circuit for processing a signal from the thermistor, when the main switch is turned off and then turned on again, In some cases, this abnormality may not be detected and the electric device may be put into operation again.

According to the present invention, even if the temperature sensor such as the thermistor exceeds the predetermined range even once, the energizing operation to the toilet electric device is not restarted unless a predetermined reset operation is performed thereafter. It is intended to provide an electric device for a toilet bowl.

[0012]

Means for Solving the Problems The toilet electric device of the present invention is a toilet electric device such as a hot water washing device, a warm air drying device, a heating toilet seat device, a toilet room air conditioner, and the like.
A temperature sensor for detecting a temperature such as an air temperature and a toilet seat temperature, and a controller for performing energization control based on a detection value of the temperature sensor are provided, and the detection value of the temperature sensor is within a predetermined range. A non-volatile storage device for storing an abnormal situation in which the detected value of the temperature sensor is out of a predetermined range, and the non-volatile storage device And a memory canceling unit for canceling the memory, and the controller stops the operation of the toilet electrical device as long as an abnormal situation is stored in the nonvolatile memory device. is there.

[0013]

When the detected value of the temperature sensor is out of the predetermined range, the fact is stored in the non-volatile storage device. As long as this memory remains in the non-volatile memory, the controller will deactivate the toilet appliance.

When the inspection worker or the like releases the storage of the non-volatile storage device, the controller puts the toilet electric device in an operable state.

[0015]

Embodiments will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electric device for a toilet according to an embodiment, FIG. 2 is an elevation view of a toilet room equipped with this electric device, and FIG. 3 is a flow chart showing the control contents of this electric device. is there.

In FIG. 2, a Western-style toilet 3 is installed in the toilet room 2, and a toilet seat box 5 having a main switch 4 and a heating toilet seat 6 are installed on the upper surface of the Western-style toilet 3.

In the toilet seat box 5, a hot water washing device 7 for washing the buttocks of the user sitting on the toilet seat 6 with hot water.
And a warm air drying device 8 for drying the wet buttocks by washing with warm water.

As shown in FIG. 1, the hot water washing device 7 is
Hot water tank 11 including heater 9 and thermistor 10
, Pump 12, and hot water tank 1 via the pump 12
The shower nozzle 13 receives the supply of hot water from the first nozzle.

The hot air drying device 8 comprises a fan 14, an air heater 15 for heating the air blown from the fan 14, and a thermistor 16 for detecting the temperature of the air heater 15.

The heated toilet seat 6 comprises a heater 17 and a thermistor 18 for temperature detection.

On the wall surface of the toilet room 2, a foot heating device 19 for warming the feet of the user sitting on the heated toilet seat 6.
Is installed. This foot heating device 19 is a fan 2
0, an air heater 21 for heating the air blown from the fan 20, and a thermistor 22 for detecting the temperature.

The heating toilet seat 6, the hot water washing device 7, the warm air drying device 8 and the foot heating device 19 are controlled by a controller 23 composed of a microcomputer. The controller 23 uses a commercial power supply AC100V in a power supply circuit 24,
DC power that has been stepped down and rectified is being supplied. The commercial power source can also supply power to the heating toilet seat 6 and each of the devices 7, 8, and 19. The detection signals of the heating toilet seat 6 and the thermistors 18, 10, 16 and 22 of the devices 7, 8 and 19 are input to the controller 23, and the controller 23 is based on the operation control signals from these thermistors and the controller 25. Heating toilet seat 6
And controls the devices 7, 8, 19.

The controller 23 includes a controller main body 26 and a non-volatile memory 27, and the non-volatile memory 27 has a function of "normal operation" of the thermistors 10, 16, 18, 22 and "abnormality". It is supposed to be remembered. This "abnormal" memory is cleared by the reset switch 29. The controller 23 can output an alarm activation signal to an alarm 28 such as an LED, a liquid crystal display panel, a buzzer or the like.

As shown in FIG. 3, when the operation switch of the controller 25 is turned on, any one or more of the heating toilet seat 6 and each of the devices 7, 8 and 19 are operated. The process moves from step 30 to step 31. First, it is judged whether the thermistor operating state stored in the non-volatile memory 27 is normal or “abnormal”, and if normal, the process proceeds to step 32 and the controller 25 Read the operating conditions set in. Next, in step 33, the detection signal of the thermistor 10, 16, 18 or 22 is input, and if the operation of the thermistor is normal, the process proceeds to step 35 through step 34, and the heating toilet seat 6 or the device 7, 8, 19 Drive. Then step 32
Move on to.

In step 34, the thermistor 10,
When "abnormality" is found on 16, 18 or 22,
The "abnormality" is stored in the nonvolatile memory 27 (step 36). Next, the operation is stopped and the alarm 28 is activated (steps 37 and 38). After that, this state is continued until the reset switch 29 is operated (step 39).

When the memory 31 is "abnormal" in step 31, the process proceeds from step 31 to step 37, the operation is stopped and the alarm 28 is activated.

Thus, the thermistors 10, 16, 1
When “abnormality” occurs in 8 and 22, the fact is stored in the non-volatile memory 27, and the operation is stopped. The memory of this “abnormality” is stored in the nonvolatile memory 27.
Since it is stored in the
Even when it is turned on again and then turned on again, the memory of the thermistor “abnormal” state is retained, and after the main switch is turned on again, the heating toilet seat 6 or the device 7, 8, 1
The operation of 9 is reliably prevented.

Then, the inspection worker checks each electric device and operates the reset switch 29 after the repair is completed, so that the memory 27 is restored to the normal state for the first time (steps 39 and 40), and the heating toilet seat 6 is installed. , Devices 7, 8, 1
It is possible to restart the operation of 9.

In the above embodiment, the foot heating device 19 is used as the air conditioner in the toilet room, but it may be a heating device for heating the entire toilet room or an air conditioner having a cooling function. May be.

Although the reset switch 29 is used in the above embodiment, it may be reset by pressing a plurality of switches of the controller 25 in order according to a specific pattern.

[0031]

As described above, in the toilet electric device of the present invention, the operation of the electric device is stopped and the operation of the electric device is not restarted when the anomaly occurs even once in the thermistor. Since it is maintained until the inspection worker etc. completes the inspection and repair and is reset, the safety of the electric equipment becomes extremely high.

[Brief description of drawings]

FIG. 1 is a control system diagram of an electric device according to an embodiment.

FIG. 2 is an elevational view of a toilet room provided with an electric device according to an embodiment.

FIG. 3 is a flowchart showing the control contents of the electric device according to the embodiment.

FIG. 4 is a circuit diagram showing a configuration of a conventional safety device.

FIG. 5 is a characteristic diagram of the thermistor.

[Explanation of symbols]

 3 Western-style toilet 4 Main switch 5 Toilet seat box 6 Heating toilet seat 7 Hot water washing device 8 Hot air dryer 9 Heater 10, 16, 18, 22 Thermistor 11 Hot water tank 12 Pump 13 Shower nozzle 14, 20 Fan 15, 21 Air heater 17 Heating toilet seat Heater 23 controller 26 controller body 27 non-volatile memory 28 alarm 29 reset switch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuo Sogabe 5-1-1, Koiehoncho, Tokoname City, Aichi Prefecture Inax Co., Ltd.

Claims (1)

[Claims] 1. An electric device for a toilet, such as a hot water washing device, a hot air drying device, a heated toilet seat device, and a toilet room air conditioner, and a temperature sensor for detecting temperatures such as water temperature, air temperature, and toilet seat temperature. A toilet bowl for controlling energization based on a detection value of the temperature sensor, the controller stopping the operation of the electric appliance for toilet when the detection value of the temperature sensor is out of a predetermined range. The electric appliance for use is provided with a non-volatile memory device for storing an abnormal situation in which the detected value of the temperature sensor is out of a predetermined range, and a memory releasing means for releasing the memory of the non-volatile memory device. The electric device for toilet, wherein the controller stops the operation of the electric device for toilet as long as an abnormal situation is stored in the nonvolatile storage device.